fusionpbx-ldap/app/webphone/phone/scripts/SIP.js/sip.js

/*!
 * 
 *  SIP version 0.15.6
 *  Copyright (c) 2014-2019 Junction Networks, Inc <http://www.onsip.com>
 *  Homepage: https://sipjs.com
 *  License: https://sipjs.com/license/
 * 
 * 
 *  ~~~SIP.js contains substantial portions of JsSIP under the following license~~~
 *  Homepage: http://jssip.net
 *  Copyright (c) 2012-2013 José Luis Millán - Versatica <http://www.versatica.com>
 * 
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 * 
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 * 
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 *  ~~~ end JsSIP license ~~~
 * 
 * 
 * 
 * 
 */
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/* 0 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var core_1 = __webpack_require__(2);
exports.DigestAuthentication = core_1.DigestAuthentication;
exports.Grammar = core_1.Grammar;
exports.IncomingRequest = core_1.IncomingRequestMessage;
exports.IncomingResponse = core_1.IncomingResponseMessage;
exports.LoggerFactory = core_1.LoggerFactory;
exports.NameAddrHeader = core_1.NameAddrHeader;
exports.OutgoingRequest = core_1.OutgoingRequestMessage;
exports.Timers = core_1.Timers;
exports.Transport = core_1.Transport;
exports.URI = core_1.URI;
var ClientContext_1 = __webpack_require__(79);
exports.ClientContext = ClientContext_1.ClientContext;
var Constants_1 = __webpack_require__(80);
exports.C = Constants_1.C;
var Enums_1 = __webpack_require__(82);
exports.DialogStatus = Enums_1.DialogStatus;
exports.SessionStatus = Enums_1.SessionStatus;
exports.TypeStrings = Enums_1.TypeStrings;
exports.UAStatus = Enums_1.UAStatus;
var Exceptions_1 = __webpack_require__(84);
exports.Exceptions = Exceptions_1.Exceptions;
var Parser_1 = __webpack_require__(85);
exports.Parser = Parser_1.Parser;
var PublishContext_1 = __webpack_require__(86);
exports.PublishContext = PublishContext_1.PublishContext;
var ReferContext_1 = __webpack_require__(87);
exports.ReferClientContext = ReferContext_1.ReferClientContext;
exports.ReferServerContext = ReferContext_1.ReferServerContext;
var RegisterContext_1 = __webpack_require__(89);
exports.RegisterContext = RegisterContext_1.RegisterContext;
var ServerContext_1 = __webpack_require__(88);
exports.ServerContext = ServerContext_1.ServerContext;
var Session_1 = __webpack_require__(90);
exports.InviteClientContext = Session_1.InviteClientContext;
exports.InviteServerContext = Session_1.InviteServerContext;
exports.Session = Session_1.Session;
var Subscription_1 = __webpack_require__(92);
exports.Subscription = Subscription_1.Subscription;
var transactions_1 = __webpack_require__(27);
var Transactions = {
    InviteClientTransaction: transactions_1.InviteClientTransaction,
    InviteServerTransaction: transactions_1.InviteServerTransaction,
    NonInviteClientTransaction: transactions_1.NonInviteClientTransaction,
    NonInviteServerTransaction: transactions_1.NonInviteServerTransaction
};
exports.Transactions = Transactions;
var UA_1 = __webpack_require__(93);
exports.makeUserAgentCoreConfigurationFromUA = UA_1.makeUserAgentCoreConfigurationFromUA;
exports.UA = UA_1.UA;
var Utils_1 = __webpack_require__(83);
exports.Utils = Utils_1.Utils;
var Web = tslib_1.__importStar(__webpack_require__(104));
exports.Web = Web;
var version = Constants_1.C.version;
exports.version = version;
var name = "sip.js";
exports.name = name;
var Core = tslib_1.__importStar(__webpack_require__(2));
exports.Core = Core;


/***/ }),
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/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0

THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.

See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
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/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * A core library implementing low level SIP protocol elements.
 * @packageDocumentation
 */
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
// Directories
tslib_1.__exportStar(__webpack_require__(3), exports);
tslib_1.__exportStar(__webpack_require__(31), exports);
tslib_1.__exportStar(__webpack_require__(60), exports);
tslib_1.__exportStar(__webpack_require__(5), exports);
tslib_1.__exportStar(__webpack_require__(24), exports);
tslib_1.__exportStar(__webpack_require__(56), exports);
tslib_1.__exportStar(__webpack_require__(27), exports);
tslib_1.__exportStar(__webpack_require__(64), exports);
tslib_1.__exportStar(__webpack_require__(66), exports);
// Files
tslib_1.__exportStar(__webpack_require__(26), exports);
tslib_1.__exportStar(__webpack_require__(78), exports);


/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(4), exports);
tslib_1.__exportStar(__webpack_require__(23), exports);
tslib_1.__exportStar(__webpack_require__(55), exports);


/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var messages_1 = __webpack_require__(5);
/**
 * Dialog.
 * @remarks
 * A key concept for a user agent is that of a dialog.  A dialog
 * represents a peer-to-peer SIP relationship between two user agents
 * that persists for some time.  The dialog facilitates sequencing of
 * messages between the user agents and proper routing of requests
 * between both of them.  The dialog represents a context in which to
 * interpret SIP messages.
 * https://tools.ietf.org/html/rfc3261#section-12
 * @public
 */
var Dialog = /** @class */ (function () {
    /**
     * Dialog constructor.
     * @param core - User agent core.
     * @param dialogState - Initial dialog state.
     */
    function Dialog(core, dialogState) {
        this.core = core;
        this.dialogState = dialogState;
        this.core.dialogs.set(this.id, this);
    }
    /**
     * When a UAC receives a response that establishes a dialog, it
     * constructs the state of the dialog.  This state MUST be maintained
     * for the duration of the dialog.
     * https://tools.ietf.org/html/rfc3261#section-12.1.2
     * @param outgoingRequestMessage - Outgoing request message for dialog.
     * @param incomingResponseMessage - Incoming response message creating dialog.
     */
    Dialog.initialDialogStateForUserAgentClient = function (outgoingRequestMessage, incomingResponseMessage) {
        // If the request was sent over TLS, and the Request-URI contained a
        // SIPS URI, the "secure" flag is set to TRUE.
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        var secure = false; // FIXME: Currently no support for TLS.
        // The route set MUST be set to the list of URIs in the Record-Route
        // header field from the response, taken in reverse order and preserving
        // all URI parameters.  If no Record-Route header field is present in
        // the response, the route set MUST be set to the empty set.  This route
        // set, even if empty, overrides any pre-existing route set for future
        // requests in this dialog.  The remote target MUST be set to the URI
        // from the Contact header field of the response.
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        var routeSet = incomingResponseMessage.getHeaders("record-route").reverse();
        var contact = incomingResponseMessage.parseHeader("contact");
        if (!contact) { // TODO: Review to make sure this will never happen
            throw new Error("Contact undefined.");
        }
        if (!(contact instanceof messages_1.NameAddrHeader)) {
            throw new Error("Contact not instance of NameAddrHeader.");
        }
        var remoteTarget = contact.uri;
        // The local sequence number MUST be set to the value of the sequence
        // number in the CSeq header field of the request.  The remote sequence
        // number MUST be empty (it is established when the remote UA sends a
        // request within the dialog).  The call identifier component of the
        // dialog ID MUST be set to the value of the Call-ID in the request.
        // The local tag component of the dialog ID MUST be set to the tag in
        // the From field in the request, and the remote tag component of the
        // dialog ID MUST be set to the tag in the To field of the response.  A
        // UAC MUST be prepared to receive a response without a tag in the To
        // field, in which case the tag is considered to have a value of null.
        //
        //    This is to maintain backwards compatibility with RFC 2543, which
        //    did not mandate To tags.
        //
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        var localSequenceNumber = outgoingRequestMessage.cseq;
        var remoteSequenceNumber = undefined;
        var callId = outgoingRequestMessage.callId;
        var localTag = outgoingRequestMessage.fromTag;
        var remoteTag = incomingResponseMessage.toTag;
        if (!callId) { // TODO: Review to make sure this will never happen
            throw new Error("Call id undefined.");
        }
        if (!localTag) { // TODO: Review to make sure this will never happen
            throw new Error("From tag undefined.");
        }
        if (!remoteTag) { // TODO: Review to make sure this will never happen
            throw new Error("To tag undefined."); // FIXME: No backwards compatibility with RFC 2543
        }
        // The remote URI MUST be set to the URI in the To field, and the local
        // URI MUST be set to the URI in the From field.
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        if (!outgoingRequestMessage.from) { // TODO: Review to make sure this will never happen
            throw new Error("From undefined.");
        }
        if (!outgoingRequestMessage.to) { // TODO: Review to make sure this will never happen
            throw new Error("To undefined.");
        }
        var localURI = outgoingRequestMessage.from.uri;
        var remoteURI = outgoingRequestMessage.to.uri;
        // A dialog can also be in the "early" state, which occurs when it is
        // created with a provisional response, and then transition to the
        // "confirmed" state when a 2xx final response arrives.
        // https://tools.ietf.org/html/rfc3261#section-12
        if (!incomingResponseMessage.statusCode) {
            throw new Error("Incoming response status code undefined.");
        }
        var early = incomingResponseMessage.statusCode < 200 ? true : false;
        var dialogState = {
            id: callId + localTag + remoteTag,
            early: early,
            callId: callId,
            localTag: localTag,
            remoteTag: remoteTag,
            localSequenceNumber: localSequenceNumber,
            remoteSequenceNumber: remoteSequenceNumber,
            localURI: localURI,
            remoteURI: remoteURI,
            remoteTarget: remoteTarget,
            routeSet: routeSet,
            secure: secure
        };
        return dialogState;
    };
    /**
     * The UAS then constructs the state of the dialog.  This state MUST be
     * maintained for the duration of the dialog.
     * https://tools.ietf.org/html/rfc3261#section-12.1.1
     * @param incomingRequestMessage - Incoming request message creating dialog.
     * @param toTag - Tag in the To field in the response to the incoming request.
     */
    Dialog.initialDialogStateForUserAgentServer = function (incomingRequestMessage, toTag, early) {
        if (early === void 0) { early = false; }
        // If the request arrived over TLS, and the Request-URI contained a SIPS
        // URI, the "secure" flag is set to TRUE.
        // https://tools.ietf.org/html/rfc3261#section-12.1.1
        var secure = false; // FIXME: Currently no support for TLS.
        // The route set MUST be set to the list of URIs in the Record-Route
        // header field from the request, taken in order and preserving all URI
        // parameters.  If no Record-Route header field is present in the
        // request, the route set MUST be set to the empty set.  This route set,
        // even if empty, overrides any pre-existing route set for future
        // requests in this dialog.  The remote target MUST be set to the URI
        // from the Contact header field of the request.
        // https://tools.ietf.org/html/rfc3261#section-12.1.1
        var routeSet = incomingRequestMessage.getHeaders("record-route");
        var contact = incomingRequestMessage.parseHeader("contact");
        if (!contact) { // TODO: Review to make sure this will never happen
            throw new Error("Contact undefined.");
        }
        if (!(contact instanceof messages_1.NameAddrHeader)) {
            throw new Error("Contact not instance of NameAddrHeader.");
        }
        var remoteTarget = contact.uri;
        // The remote sequence number MUST be set to the value of the sequence
        // number in the CSeq header field of the request.  The local sequence
        // number MUST be empty.  The call identifier component of the dialog ID
        // MUST be set to the value of the Call-ID in the request.  The local
        // tag component of the dialog ID MUST be set to the tag in the To field
        // in the response to the request (which always includes a tag), and the
        // remote tag component of the dialog ID MUST be set to the tag from the
        // From field in the request.  A UAS MUST be prepared to receive a
        // request without a tag in the From field, in which case the tag is
        // considered to have a value of null.
        //
        //    This is to maintain backwards compatibility with RFC 2543, which
        //    did not mandate From tags.
        //
        // https://tools.ietf.org/html/rfc3261#section-12.1.1
        var remoteSequenceNumber = incomingRequestMessage.cseq;
        var localSequenceNumber = undefined;
        var callId = incomingRequestMessage.callId;
        var localTag = toTag;
        var remoteTag = incomingRequestMessage.fromTag;
        // The remote URI MUST be set to the URI in the From field, and the
        // local URI MUST be set to the URI in the To field.
        // https://tools.ietf.org/html/rfc3261#section-12.1.1
        var remoteURI = incomingRequestMessage.from.uri;
        var localURI = incomingRequestMessage.to.uri;
        var dialogState = {
            id: callId + localTag + remoteTag,
            early: early,
            callId: callId,
            localTag: localTag,
            remoteTag: remoteTag,
            localSequenceNumber: localSequenceNumber,
            remoteSequenceNumber: remoteSequenceNumber,
            localURI: localURI,
            remoteURI: remoteURI,
            remoteTarget: remoteTarget,
            routeSet: routeSet,
            secure: secure
        };
        return dialogState;
    };
    /** Destructor. */
    Dialog.prototype.dispose = function () {
        this.core.dialogs.delete(this.id);
    };
    Object.defineProperty(Dialog.prototype, "id", {
        /**
         * A dialog is identified at each UA with a dialog ID, which consists of
         * a Call-ID value, a local tag and a remote tag.  The dialog ID at each
         * UA involved in the dialog is not the same.  Specifically, the local
         * tag at one UA is identical to the remote tag at the peer UA.  The
         * tags are opaque tokens that facilitate the generation of unique
         * dialog IDs.
         * https://tools.ietf.org/html/rfc3261#section-12
         */
        get: function () {
            return this.dialogState.id;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "early", {
        /**
         * A dialog can also be in the "early" state, which occurs when it is
         * created with a provisional response, and then it transition to the
         * "confirmed" state when a 2xx final response received or is sent.
         *
         * Note: RFC 3261 is concise on when a dialog is "confirmed", but it
         * can be a point of confusion if an INVITE dialog is "confirmed" after
         * a 2xx is sent or after receiving the ACK for the 2xx response.
         * With careful reading it can be inferred a dialog is always is
         * "confirmed" when the 2xx is sent (regardless of type of dialog).
         * However a INVITE dialog does have additional considerations
         * when it is confirmed but an ACK has not yet been received (in
         * particular with regard to a callee sending BYE requests).
         */
        get: function () {
            return this.dialogState.early;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "callId", {
        /** Call identifier component of the dialog id. */
        get: function () {
            return this.dialogState.callId;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "localTag", {
        /** Local tag component of the dialog id. */
        get: function () {
            return this.dialogState.localTag;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "remoteTag", {
        /** Remote tag component of the dialog id. */
        get: function () {
            return this.dialogState.remoteTag;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "localSequenceNumber", {
        /** Local sequence number (used to order requests from the UA to its peer). */
        get: function () {
            return this.dialogState.localSequenceNumber;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "remoteSequenceNumber", {
        /** Remote sequence number (used to order requests from its peer to the UA). */
        get: function () {
            return this.dialogState.remoteSequenceNumber;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "localURI", {
        /** Local URI. */
        get: function () {
            return this.dialogState.localURI;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "remoteURI", {
        /** Remote URI. */
        get: function () {
            return this.dialogState.remoteURI;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "remoteTarget", {
        /** Remote target. */
        get: function () {
            return this.dialogState.remoteTarget;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "routeSet", {
        /**
         * Route set, which is an ordered list of URIs. The route set is the
         * list of servers that need to be traversed to send a request to the peer.
         */
        get: function () {
            return this.dialogState.routeSet;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "secure", {
        /**
         * If the request was sent over TLS, and the Request-URI contained
         * a SIPS URI, the "secure" flag is set to true. *NOT IMPLEMENTED*
         */
        get: function () {
            return this.dialogState.secure;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Dialog.prototype, "userAgentCore", {
        /** The user agent core servicing this dialog. */
        get: function () {
            return this.core;
        },
        enumerable: true,
        configurable: true
    });
    /** Confirm the dialog. Only matters if dialog is currently early. */
    Dialog.prototype.confirm = function () {
        this.dialogState.early = false;
    };
    /**
     * Requests sent within a dialog, as any other requests, are atomic.  If
     * a particular request is accepted by the UAS, all the state changes
     * associated with it are performed.  If the request is rejected, none
     * of the state changes are performed.
     *
     *    Note that some requests, such as INVITEs, affect several pieces of
     *    state.
     *
     * https://tools.ietf.org/html/rfc3261#section-12.2.2
     * @param message - Incoming request message within this dialog.
     */
    Dialog.prototype.receiveRequest = function (message) {
        // ACK guard.
        // By convention, the handling of ACKs is the responsibility
        // the particular dialog implementation. For example, see SessionDialog.
        // Furthermore, ACKs have same sequence number as the associated INVITE.
        if (message.method === messages_1.C.ACK) {
            return;
        }
        // If the remote sequence number was not empty, but the sequence number
        // of the request is lower than the remote sequence number, the request
        // is out of order and MUST be rejected with a 500 (Server Internal
        // Error) response.  If the remote sequence number was not empty, and
        // the sequence number of the request is greater than the remote
        // sequence number, the request is in order.  It is possible for the
        // CSeq sequence number to be higher than the remote sequence number by
        // more than one.  This is not an error condition, and a UAS SHOULD be
        // prepared to receive and process requests with CSeq values more than
        // one higher than the previous received request.  The UAS MUST then set
        // the remote sequence number to the value of the sequence number in the
        // CSeq header field value in the request.
        //
        //    If a proxy challenges a request generated by the UAC, the UAC has
        //    to resubmit the request with credentials.  The resubmitted request
        //    will have a new CSeq number.  The UAS will never see the first
        //    request, and thus, it will notice a gap in the CSeq number space.
        //    Such a gap does not represent any error condition.
        //
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        if (this.remoteSequenceNumber) {
            if (message.cseq <= this.remoteSequenceNumber) {
                throw new Error("Out of sequence in dialog request. Did you forget to call sequenceGuard()?");
            }
            this.dialogState.remoteSequenceNumber = message.cseq;
        }
        // If the remote sequence number is empty, it MUST be set to the value
        // of the sequence number in the CSeq header field value in the request.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        if (!this.remoteSequenceNumber) {
            this.dialogState.remoteSequenceNumber = message.cseq;
        }
        // When a UAS receives a target refresh request, it MUST replace the
        // dialog's remote target URI with the URI from the Contact header field
        // in that request, if present.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        // Note: "target refresh request" processing delegated to sub-class.
    };
    /**
     * If the dialog identifier in the 2xx response matches the dialog
     * identifier of an existing dialog, the dialog MUST be transitioned to
     * the "confirmed" state, and the route set for the dialog MUST be
     * recomputed based on the 2xx response using the procedures of Section
     * 12.2.1.2.  Otherwise, a new dialog in the "confirmed" state MUST be
     * constructed using the procedures of Section 12.1.2.
     *
     * Note that the only piece of state that is recomputed is the route
     * set.  Other pieces of state such as the highest sequence numbers
     * (remote and local) sent within the dialog are not recomputed.  The
     * route set only is recomputed for backwards compatibility.  RFC
     * 2543 did not mandate mirroring of the Record-Route header field in
     * a 1xx, only 2xx.  However, we cannot update the entire state of
     * the dialog, since mid-dialog requests may have been sent within
     * the early dialog, modifying the sequence numbers, for example.
     *
     *  https://tools.ietf.org/html/rfc3261#section-13.2.2.4
     */
    Dialog.prototype.recomputeRouteSet = function (message) {
        this.dialogState.routeSet = message.getHeaders("record-route").reverse();
    };
    /**
     * A request within a dialog is constructed by using many of the
     * components of the state stored as part of the dialog.
     * https://tools.ietf.org/html/rfc3261#section-12.2.1.1
     * @param method - Outgoing request method.
     */
    Dialog.prototype.createOutgoingRequestMessage = function (method, options) {
        // The URI in the To field of the request MUST be set to the remote URI
        // from the dialog state.  The tag in the To header field of the request
        // MUST be set to the remote tag of the dialog ID.  The From URI of the
        // request MUST be set to the local URI from the dialog state.  The tag
        // in the From header field of the request MUST be set to the local tag
        // of the dialog ID.  If the value of the remote or local tags is null,
        // the tag parameter MUST be omitted from the To or From header fields,
        // respectively.
        //
        //    Usage of the URI from the To and From fields in the original
        //    request within subsequent requests is done for backwards
        //    compatibility with RFC 2543, which used the URI for dialog
        //    identification.  In this specification, only the tags are used for
        //    dialog identification.  It is expected that mandatory reflection
        //    of the original To and From URI in mid-dialog requests will be
        //    deprecated in a subsequent revision of this specification.
        // https://tools.ietf.org/html/rfc3261#section-12.2.1.1
        var toUri = this.remoteURI;
        var toTag = this.remoteTag;
        var fromUri = this.localURI;
        var fromTag = this.localTag;
        // The Call-ID of the request MUST be set to the Call-ID of the dialog.
        // Requests within a dialog MUST contain strictly monotonically
        // increasing and contiguous CSeq sequence numbers (increasing-by-one)
        // in each direction (excepting ACK and CANCEL of course, whose numbers
        // equal the requests being acknowledged or cancelled).  Therefore, if
        // the local sequence number is not empty, the value of the local
        // sequence number MUST be incremented by one, and this value MUST be
        // placed into the CSeq header field.  If the local sequence number is
        // empty, an initial value MUST be chosen using the guidelines of
        // Section 8.1.1.5.  The method field in the CSeq header field value
        // MUST match the method of the request.
        // https://tools.ietf.org/html/rfc3261#section-12.2.1.1
        var callId = this.callId;
        var cseq;
        if (options && options.cseq) {
            cseq = options.cseq;
        }
        else if (!this.dialogState.localSequenceNumber) {
            cseq = this.dialogState.localSequenceNumber = 1; // https://tools.ietf.org/html/rfc3261#section-8.1.1.5
        }
        else {
            cseq = this.dialogState.localSequenceNumber += 1;
        }
        // The UAC uses the remote target and route set to build the Request-URI
        // and Route header field of the request.
        //
        // If the route set is empty, the UAC MUST place the remote target URI
        // into the Request-URI.  The UAC MUST NOT add a Route header field to
        // the request.
        //
        // If the route set is not empty, and the first URI in the route set
        // contains the lr parameter (see Section 19.1.1), the UAC MUST place
        // the remote target URI into the Request-URI and MUST include a Route
        // header field containing the route set values in order, including all
        // parameters.
        //
        // If the route set is not empty, and its first URI does not contain the
        // lr parameter, the UAC MUST place the first URI from the route set
        // into the Request-URI, stripping any parameters that are not allowed
        // in a Request-URI.  The UAC MUST add a Route header field containing
        // the remainder of the route set values in order, including all
        // parameters.  The UAC MUST then place the remote target URI into the
        // Route header field as the last value.
        // https://tools.ietf.org/html/rfc3261#section-12.2.1.1
        // The lr parameter, when present, indicates that the element
        // responsible for this resource implements the routing mechanisms
        // specified in this document.  This parameter will be used in the
        // URIs proxies place into Record-Route header field values, and
        // may appear in the URIs in a pre-existing route set.
        //
        // This parameter is used to achieve backwards compatibility with
        // systems implementing the strict-routing mechanisms of RFC 2543
        // and the rfc2543bis drafts up to bis-05.  An element preparing
        // to send a request based on a URI not containing this parameter
        // can assume the receiving element implements strict-routing and
        // reformat the message to preserve the information in the
        // Request-URI.
        // https://tools.ietf.org/html/rfc3261#section-19.1.1
        // NOTE: Not backwards compatible with RFC 2543 (no support for strict-routing).
        var ruri = this.remoteTarget;
        var routeSet = this.routeSet;
        var extraHeaders = options && options.extraHeaders;
        var body = options && options.body;
        // The relative order of header fields with different field names is not
        // significant.  However, it is RECOMMENDED that header fields which are
        // needed for proxy processing (Via, Route, Record-Route, Proxy-Require,
        // Max-Forwards, and Proxy-Authorization, for example) appear towards
        // the top of the message to facilitate rapid parsing.
        // https://tools.ietf.org/html/rfc3261#section-7.3.1
        var message = this.userAgentCore.makeOutgoingRequestMessage(method, ruri, fromUri, toUri, {
            callId: callId,
            cseq: cseq,
            fromTag: fromTag,
            toTag: toTag,
            routeSet: routeSet
        }, extraHeaders, body);
        return message;
    };
    /**
     * If the remote sequence number was not empty, but the sequence number
     * of the request is lower than the remote sequence number, the request
     * is out of order and MUST be rejected with a 500 (Server Internal
     * Error) response.
     * https://tools.ietf.org/html/rfc3261#section-12.2.2
     * @param request - Incoming request to guard.
     * @returns True if the program execution is to continue in the branch in question.
     *          Otherwise a 500 Server Internal Error was stateless sent and request processing must stop.
     */
    Dialog.prototype.sequenceGuard = function (message) {
        // ACK guard.
        // By convention, handling of unexpected ACKs is responsibility
        // the particular dialog implementation. For example, see SessionDialog.
        // Furthermore, we cannot reply to an "out of sequence" ACK.
        if (message.method === messages_1.C.ACK) {
            return true;
        }
        // Note: We are rejecting on "less than or equal to" the remote
        // sequence number (excepting ACK whose numbers equal the requests
        // being acknowledged or cancelled), which is the correct thing to
        // do in our case. The only time a request with the same sequence number
        // will show up here if is a) it is a very late retransmission of a
        // request we already handled or b) it is a different request with the
        // same sequence number which would be violation of the standard.
        // Request retransmissions are absorbed by the transaction layer,
        // so any request with a duplicate sequence number getting here
        // would have to be a retransmission after the transaction terminated
        // or a broken request (with unique via branch value).
        // Requests within a dialog MUST contain strictly monotonically
        // increasing and contiguous CSeq sequence numbers (increasing-by-one)
        // in each direction (excepting ACK and CANCEL of course, whose numbers
        // equal the requests being acknowledged or cancelled).  Therefore, if
        // the local sequence number is not empty, the value of the local
        // sequence number MUST be incremented by one, and this value MUST be
        // placed into the CSeq header field.
        // https://tools.ietf.org/html/rfc3261#section-12.2.1.1
        if (this.remoteSequenceNumber && message.cseq <= this.remoteSequenceNumber) {
            this.core.replyStateless(message, { statusCode: 500 });
            return false;
        }
        return true;
    };
    return Dialog;
}());
exports.Dialog = Dialog;


/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
// Directories
tslib_1.__exportStar(__webpack_require__(6), exports);
// Files
tslib_1.__exportStar(__webpack_require__(8), exports);
tslib_1.__exportStar(__webpack_require__(19), exports);
tslib_1.__exportStar(__webpack_require__(11), exports);
tslib_1.__exportStar(__webpack_require__(10), exports);
tslib_1.__exportStar(__webpack_require__(9), exports);
tslib_1.__exportStar(__webpack_require__(17), exports);
tslib_1.__exportStar(__webpack_require__(13), exports);
tslib_1.__exportStar(__webpack_require__(18), exports);
tslib_1.__exportStar(__webpack_require__(22), exports);
tslib_1.__exportStar(__webpack_require__(14), exports);
tslib_1.__exportStar(__webpack_require__(15), exports);


/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(7), exports);


/***/ }),
/* 7 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * SIP Methods
 * @internal
 */
var C;
(function (C) {
    C.ACK = "ACK";
    C.BYE = "BYE";
    C.CANCEL = "CANCEL";
    C.INFO = "INFO";
    C.INVITE = "INVITE";
    C.MESSAGE = "MESSAGE";
    C.NOTIFY = "NOTIFY";
    C.OPTIONS = "OPTIONS";
    C.REGISTER = "REGISTER";
    C.UPDATE = "UPDATE";
    C.SUBSCRIBE = "SUBSCRIBE";
    C.PUBLISH = "PUBLISH";
    C.REFER = "REFER";
    C.PRACK = "PRACK";
})(C = exports.C || (exports.C = {}));


/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var incoming_request_message_1 = __webpack_require__(9);
var incoming_response_message_1 = __webpack_require__(17);
var outgoing_request_message_1 = __webpack_require__(18);
/**
 * Create a Body given a legacy body type.
 * @param bodyLegacy - Body Object
 * @internal
 */
function fromBodyLegacy(bodyLegacy) {
    var content = (typeof bodyLegacy === "string") ? bodyLegacy : bodyLegacy.body;
    var contentType = (typeof bodyLegacy === "string") ? "application/sdp" : bodyLegacy.contentType;
    var contentDisposition = contentTypeToContentDisposition(contentType);
    var body = { contentDisposition: contentDisposition, contentType: contentType, content: content };
    return body;
}
exports.fromBodyLegacy = fromBodyLegacy;
/**
 * Given a message, get a normalized body.
 * The content disposition is inferred if not set.
 * @param message - The message.
 * @internal
 */
function getBody(message) {
    var contentDisposition;
    var contentType;
    var content;
    // We're in UAS role, receiving incoming request
    if (message instanceof incoming_request_message_1.IncomingRequestMessage) {
        if (message.body) {
            // FIXME: Parsing needs typing
            var parse = message.parseHeader("Content-Disposition");
            contentDisposition = parse ? parse.type : undefined;
            contentType = message.parseHeader("Content-Type");
            content = message.body;
        }
    }
    // We're in UAC role, receiving incoming response
    if (message instanceof incoming_response_message_1.IncomingResponseMessage) {
        if (message.body) {
            // FIXME: Parsing needs typing
            var parse = message.parseHeader("Content-Disposition");
            contentDisposition = parse ? parse.type : undefined;
            contentType = message.parseHeader("Content-Type");
            content = message.body;
        }
    }
    // We're in UAC role, sending outgoing request
    if (message instanceof outgoing_request_message_1.OutgoingRequestMessage) {
        if (message.body) {
            contentDisposition = message.getHeader("Content-Disposition");
            contentType = message.getHeader("Content-Type");
            if (typeof message.body === "string") {
                // FIXME: OutgoingRequest should not allow a "string" body without a "Content-Type" header.
                if (!contentType) {
                    throw new Error("Header content type header does not equal body content type.");
                }
                content = message.body;
            }
            else {
                // FIXME: OutgoingRequest should not allow the "Content-Type" header not to match th body content type
                if (contentType && contentType !== message.body.contentType) {
                    throw new Error("Header content type header does not equal body content type.");
                }
                contentType = message.body.contentType;
                content = message.body.body;
            }
        }
    }
    // We're in UAS role, sending outgoing response
    if (isBody(message)) {
        contentDisposition = message.contentDisposition;
        contentType = message.contentType;
        content = message.content;
    }
    // No content, no body.
    if (!content) {
        return undefined;
    }
    if (contentType && !contentDisposition) {
        contentDisposition = contentTypeToContentDisposition(contentType);
    }
    if (!contentDisposition) {
        throw new Error("Content disposition undefined.");
    }
    if (!contentType) {
        throw new Error("Content type undefined.");
    }
    return {
        contentDisposition: contentDisposition,
        contentType: contentType,
        content: content
    };
}
exports.getBody = getBody;
/**
 * User-Defined Type Guard for Body.
 * @param body - Body to check.
 * @internal
 */
function isBody(body) {
    return body &&
        typeof body.content === "string" &&
        typeof body.contentType === "string" &&
        body.contentDisposition === undefined ? true : typeof body.contentDisposition === "string";
}
exports.isBody = isBody;
// If the Content-Disposition header field is missing, bodies of
// Content-Type application/sdp imply the disposition "session", while
// other content types imply "render".
// https://tools.ietf.org/html/rfc3261#section-13.2.1
function contentTypeToContentDisposition(contentType) {
    if (contentType === "application/sdp") {
        return "session";
    }
    else {
        return "render";
    }
}


/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var incoming_message_1 = __webpack_require__(10);
/**
 * Incoming request message.
 * @public
 */
var IncomingRequestMessage = /** @class */ (function (_super) {
    tslib_1.__extends(IncomingRequestMessage, _super);
    function IncomingRequestMessage() {
        return _super.call(this) || this;
    }
    return IncomingRequestMessage;
}(incoming_message_1.IncomingMessage));
exports.IncomingRequestMessage = IncomingRequestMessage;


/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var grammar_1 = __webpack_require__(11);
var utils_1 = __webpack_require__(16);
/**
 * Incoming message.
 * @public
 */
var IncomingMessage = /** @class */ (function () {
    function IncomingMessage() {
        this.headers = {};
    }
    /**
     * Insert a header of the given name and value into the last position of the
     * header array.
     * @param name - header name
     * @param value - header value
     */
    IncomingMessage.prototype.addHeader = function (name, value) {
        var header = { raw: value };
        name = utils_1.headerize(name);
        if (this.headers[name]) {
            this.headers[name].push(header);
        }
        else {
            this.headers[name] = [header];
        }
    };
    /**
     * Get the value of the given header name at the given position.
     * @param name - header name
     * @returns Returns the specified header, undefined if header doesn't exist.
     */
    IncomingMessage.prototype.getHeader = function (name) {
        var header = this.headers[utils_1.headerize(name)];
        if (header) {
            if (header[0]) {
                return header[0].raw;
            }
        }
        else {
            return;
        }
    };
    /**
     * Get the header/s of the given name.
     * @param name - header name
     * @returns Array - with all the headers of the specified name.
     */
    IncomingMessage.prototype.getHeaders = function (name) {
        var header = this.headers[utils_1.headerize(name)];
        var result = [];
        if (!header) {
            return [];
        }
        for (var _i = 0, header_1 = header; _i < header_1.length; _i++) {
            var headerPart = header_1[_i];
            result.push(headerPart.raw);
        }
        return result;
    };
    /**
     * Verify the existence of the given header.
     * @param name - header name
     * @returns true if header with given name exists, false otherwise
     */
    IncomingMessage.prototype.hasHeader = function (name) {
        return !!this.headers[utils_1.headerize(name)];
    };
    /**
     * Parse the given header on the given index.
     * @param name - header name
     * @param idx - header index
     * @returns Parsed header object, undefined if the
     *   header is not present or in case of a parsing error.
     */
    IncomingMessage.prototype.parseHeader = function (name, idx) {
        if (idx === void 0) { idx = 0; }
        name = utils_1.headerize(name);
        if (!this.headers[name]) {
            // this.logger.log("header '" + name + "' not present");
            return;
        }
        else if (idx >= this.headers[name].length) {
            // this.logger.log("not so many '" + name + "' headers present");
            return;
        }
        var header = this.headers[name][idx];
        var value = header.raw;
        if (header.parsed) {
            return header.parsed;
        }
        // substitute '-' by '_' for grammar rule matching.
        var parsed = grammar_1.Grammar.parse(value, name.replace(/-/g, "_"));
        if (parsed === -1) {
            this.headers[name].splice(idx, 1); // delete from headers
            // this.logger.warn('error parsing "' + name + '" header field with value "' + value + '"');
            return;
        }
        else {
            header.parsed = parsed;
            return parsed;
        }
    };
    /**
     * Message Header attribute selector. Alias of parseHeader.
     * @param name - header name
     * @param idx - header index
     * @returns Parsed header object, undefined if the
     *   header is not present or in case of a parsing error.
     *
     * @example
     * message.s('via',3).port
     */
    IncomingMessage.prototype.s = function (name, idx) {
        if (idx === void 0) { idx = 0; }
        return this.parseHeader(name, idx);
    };
    /**
     * Replace the value of the given header by the value.
     * @param name - header name
     * @param value - header value
     */
    IncomingMessage.prototype.setHeader = function (name, value) {
        this.headers[utils_1.headerize(name)] = [{ raw: value }];
    };
    IncomingMessage.prototype.toString = function () {
        return this.data;
    };
    return IncomingMessage;
}());
exports.IncomingMessage = IncomingMessage;


/***/ }),
/* 11 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var pegGrammar = tslib_1.__importStar(__webpack_require__(12));
/**
 * Grammar.
 * @internal
 */
var Grammar;
(function (Grammar) {
    /**
     * Parse.
     * @param input -
     * @param startRule -
     */
    function parse(input, startRule) {
        var options = { startRule: startRule };
        try {
            pegGrammar.parse(input, options);
        }
        catch (e) {
            options.data = -1;
        }
        return options.data;
    }
    Grammar.parse = parse;
    /**
     * Parse the given string and returns a SIP.NameAddrHeader instance or undefined if
     * it is an invalid NameAddrHeader.
     * @param name_addr_header -
     */
    function nameAddrHeaderParse(nameAddrHeader) {
        var parsedNameAddrHeader = Grammar.parse(nameAddrHeader, "Name_Addr_Header");
        return parsedNameAddrHeader !== -1 ? parsedNameAddrHeader : undefined;
    }
    Grammar.nameAddrHeaderParse = nameAddrHeaderParse;
    /**
     * Parse the given string and returns a SIP.URI instance or undefined if
     * it is an invalid URI.
     * @param uri -
     */
    function URIParse(uri) {
        var parsedUri = Grammar.parse(uri, "SIP_URI");
        return parsedUri !== -1 ? parsedUri : undefined;
    }
    Grammar.URIParse = URIParse;
})(Grammar = exports.Grammar || (exports.Grammar = {}));


/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

// tslint:disable:interface-name
// tslint:disable: trailing-comma
// tslint:disable: object-literal-sort-keys
// tslint:disable: max-line-length
// tslint:disable: only-arrow-functions
// tslint:disable: one-variable-per-declaration
// tslint:disable: no-consecutive-blank-lines
// tslint:disable: align
// tslint:disable: radix
// tslint:disable: quotemark
// tslint:disable: semicolon
// tslint:disable: object-literal-shorthand
// tslint:disable: variable-name
// tslint:disable: no-var-keyword
// tslint:disable: whitespace
// tslint:disable: curly
// tslint:disable: prefer-const
// tslint:disable: object-literal-key-quotes
// tslint:disable: no-string-literal
// tslint:disable: one-line
// tslint:disable: no-unused-expression
// tslint:disable: space-before-function-paren
// tslint:disable: arrow-return-shorthand
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
// Generated by PEG.js v. 0.10.0 (ts-pegjs plugin v. 0.2.6 )
//
// https://pegjs.org/   https://github.com/metadevpro/ts-pegjs
var name_addr_header_1 = __webpack_require__(13);
var uri_1 = __webpack_require__(15);
var SyntaxError = /** @class */ (function (_super) {
    tslib_1.__extends(SyntaxError, _super);
    function SyntaxError(message, expected, found, location) {
        var _this = _super.call(this) || this;
        _this.message = message;
        _this.expected = expected;
        _this.found = found;
        _this.location = location;
        _this.name = "SyntaxError";
        if (typeof Error.captureStackTrace === "function") {
            Error.captureStackTrace(_this, SyntaxError);
        }
        return _this;
    }
    SyntaxError.buildMessage = function (expected, found) {
        function hex(ch) {
            return ch.charCodeAt(0).toString(16).toUpperCase();
        }
        function literalEscape(s) {
            return s
                .replace(/\\/g, "\\\\")
                .replace(/"/g, "\\\"")
                .replace(/\0/g, "\\0")
                .replace(/\t/g, "\\t")
                .replace(/\n/g, "\\n")
                .replace(/\r/g, "\\r")
                .replace(/[\x00-\x0F]/g, function (ch) { return "\\x0" + hex(ch); })
                .replace(/[\x10-\x1F\x7F-\x9F]/g, function (ch) { return "\\x" + hex(ch); });
        }
        function classEscape(s) {
            return s
                .replace(/\\/g, "\\\\")
                .replace(/\]/g, "\\]")
                .replace(/\^/g, "\\^")
                .replace(/-/g, "\\-")
                .replace(/\0/g, "\\0")
                .replace(/\t/g, "\\t")
                .replace(/\n/g, "\\n")
                .replace(/\r/g, "\\r")
                .replace(/[\x00-\x0F]/g, function (ch) { return "\\x0" + hex(ch); })
                .replace(/[\x10-\x1F\x7F-\x9F]/g, function (ch) { return "\\x" + hex(ch); });
        }
        function describeExpectation(expectation) {
            switch (expectation.type) {
                case "literal":
                    return "\"" + literalEscape(expectation.text) + "\"";
                case "class":
                    var escapedParts = expectation.parts.map(function (part) {
                        return Array.isArray(part)
                            ? classEscape(part[0]) + "-" + classEscape(part[1])
                            : classEscape(part);
                    });
                    return "[" + (expectation.inverted ? "^" : "") + escapedParts + "]";
                case "any":
                    return "any character";
                case "end":
                    return "end of input";
                case "other":
                    return expectation.description;
            }
        }
        function describeExpected(expected1) {
            var descriptions = expected1.map(describeExpectation);
            var i;
            var j;
            descriptions.sort();
            if (descriptions.length > 0) {
                for (i = 1, j = 1; i < descriptions.length; i++) {
                    if (descriptions[i - 1] !== descriptions[i]) {
                        descriptions[j] = descriptions[i];
                        j++;
                    }
                }
                descriptions.length = j;
            }
            switch (descriptions.length) {
                case 1:
                    return descriptions[0];
                case 2:
                    return descriptions[0] + " or " + descriptions[1];
                default:
                    return descriptions.slice(0, -1).join(", ")
                        + ", or "
                        + descriptions[descriptions.length - 1];
            }
        }
        function describeFound(found1) {
            return found1 ? "\"" + literalEscape(found1) + "\"" : "end of input";
        }
        return "Expected " + describeExpected(expected) + " but " + describeFound(found) + " found.";
    };
    return SyntaxError;
}(Error));
exports.SyntaxError = SyntaxError;
function peg$parse(input, options) {
    options = options !== undefined ? options : {};
    var peg$FAILED = {};
    var peg$startRuleIndices = { Contact: 119, Name_Addr_Header: 156, Record_Route: 176, Request_Response: 81, SIP_URI: 45, Subscription_State: 186, Supported: 191, Require: 182, Via: 194, absoluteURI: 84, Call_ID: 118, Content_Disposition: 130, Content_Length: 135, Content_Type: 136, CSeq: 146, displayName: 122, Event: 149, From: 151, host: 52, Max_Forwards: 154, Min_SE: 213, Proxy_Authenticate: 157, quoted_string: 40, Refer_To: 178, Replaces: 179, Session_Expires: 210, stun_URI: 217, To: 192, turn_URI: 223, uuid: 226, WWW_Authenticate: 209, challenge: 158, sipfrag: 230, Referred_By: 231 };
    var peg$startRuleIndex = 119;
    var peg$consts = [
        "\r\n",
        peg$literalExpectation("\r\n", false),
        /^[0-9]/,
        peg$classExpectation([["0", "9"]], false, false),
        /^[a-zA-Z]/,
        peg$classExpectation([["a", "z"], ["A", "Z"]], false, false),
        /^[0-9a-fA-F]/,
        peg$classExpectation([["0", "9"], ["a", "f"], ["A", "F"]], false, false),
        /^[\0-\xFF]/,
        peg$classExpectation([["\0", "\xFF"]], false, false),
        /^["]/,
        peg$classExpectation(["\""], false, false),
        " ",
        peg$literalExpectation(" ", false),
        "\t",
        peg$literalExpectation("\t", false),
        /^[a-zA-Z0-9]/,
        peg$classExpectation([["a", "z"], ["A", "Z"], ["0", "9"]], false, false),
        ";",
        peg$literalExpectation(";", false),
        "/",
        peg$literalExpectation("/", false),
        "?",
        peg$literalExpectation("?", false),
        ":",
        peg$literalExpectation(":", false),
        "@",
        peg$literalExpectation("@", false),
        "&",
        peg$literalExpectation("&", false),
        "=",
        peg$literalExpectation("=", false),
        "+",
        peg$literalExpectation("+", false),
        "$",
        peg$literalExpectation("$", false),
        ",",
        peg$literalExpectation(",", false),
        "-",
        peg$literalExpectation("-", false),
        "_",
        peg$literalExpectation("_", false),
        ".",
        peg$literalExpectation(".", false),
        "!",
        peg$literalExpectation("!", false),
        "~",
        peg$literalExpectation("~", false),
        "*",
        peg$literalExpectation("*", false),
        "'",
        peg$literalExpectation("'", false),
        "(",
        peg$literalExpectation("(", false),
        ")",
        peg$literalExpectation(")", false),
        "%",
        peg$literalExpectation("%", false),
        function () { return " "; },
        function () { return ':'; },
        /^[!-~]/,
        peg$classExpectation([["!", "~"]], false, false),
        /^[\x80-\uFFFF]/,
        peg$classExpectation([["\x80", "\uFFFF"]], false, false),
        /^[\x80-\xBF]/,
        peg$classExpectation([["\x80", "\xBF"]], false, false),
        /^[a-f]/,
        peg$classExpectation([["a", "f"]], false, false),
        "`",
        peg$literalExpectation("`", false),
        "<",
        peg$literalExpectation("<", false),
        ">",
        peg$literalExpectation(">", false),
        "\\",
        peg$literalExpectation("\\", false),
        "[",
        peg$literalExpectation("[", false),
        "]",
        peg$literalExpectation("]", false),
        "{",
        peg$literalExpectation("{", false),
        "}",
        peg$literalExpectation("}", false),
        function () { return "*"; },
        function () { return "/"; },
        function () { return "="; },
        function () { return "("; },
        function () { return ")"; },
        function () { return ">"; },
        function () { return "<"; },
        function () { return ","; },
        function () { return ";"; },
        function () { return ":"; },
        function () { return "\""; },
        /^[!-']/,
        peg$classExpectation([["!", "'"]], false, false),
        /^[*-[]/,
        peg$classExpectation([["*", "["]], false, false),
        /^[\]-~]/,
        peg$classExpectation([["]", "~"]], false, false),
        function (contents) {
            return contents;
        },
        /^[#-[]/,
        peg$classExpectation([["#", "["]], false, false),
        /^[\0-\t]/,
        peg$classExpectation([["\0", "\t"]], false, false),
        /^[\x0B-\f]/,
        peg$classExpectation([["\x0B", "\f"]], false, false),
        /^[\x0E-\x7F]/,
        peg$classExpectation([["\x0E", "\x7F"]], false, false),
        function () {
            options = options || { data: {} };
            options.data.uri = new uri_1.URI(options.data.scheme, options.data.user, options.data.host, options.data.port);
            delete options.data.scheme;
            delete options.data.user;
            delete options.data.host;
            delete options.data.host_type;
            delete options.data.port;
        },
        function () {
            options = options || { data: {} };
            options.data.uri = new uri_1.URI(options.data.scheme, options.data.user, options.data.host, options.data.port, options.data.uri_params, options.data.uri_headers);
            delete options.data.scheme;
            delete options.data.user;
            delete options.data.host;
            delete options.data.host_type;
            delete options.data.port;
            delete options.data.uri_params;
            if (options.startRule === 'SIP_URI') {
                options.data = options.data.uri;
            }
        },
        "sips",
        peg$literalExpectation("sips", true),
        "sip",
        peg$literalExpectation("sip", true),
        function (uri_scheme) {
            options = options || { data: {} };
            options.data.scheme = uri_scheme;
        },
        function () {
            options = options || { data: {} };
            options.data.user = decodeURIComponent(text().slice(0, -1));
        },
        function () {
            options = options || { data: {} };
            options.data.password = text();
        },
        function () {
            options = options || { data: {} };
            options.data.host = text();
            return options.data.host;
        },
        function () {
            options = options || { data: {} };
            options.data.host_type = 'domain';
            return text();
        },
        /^[a-zA-Z0-9_\-]/,
        peg$classExpectation([["a", "z"], ["A", "Z"], ["0", "9"], "_", "-"], false, false),
        /^[a-zA-Z0-9\-]/,
        peg$classExpectation([["a", "z"], ["A", "Z"], ["0", "9"], "-"], false, false),
        function () {
            options = options || { data: {} };
            options.data.host_type = 'IPv6';
            return text();
        },
        "::",
        peg$literalExpectation("::", false),
        function () {
            options = options || { data: {} };
            options.data.host_type = 'IPv6';
            return text();
        },
        function () {
            options = options || { data: {} };
            options.data.host_type = 'IPv4';
            return text();
        },
        "25",
        peg$literalExpectation("25", false),
        /^[0-5]/,
        peg$classExpectation([["0", "5"]], false, false),
        "2",
        peg$literalExpectation("2", false),
        /^[0-4]/,
        peg$classExpectation([["0", "4"]], false, false),
        "1",
        peg$literalExpectation("1", false),
        /^[1-9]/,
        peg$classExpectation([["1", "9"]], false, false),
        function (port) {
            options = options || { data: {} };
            port = parseInt(port.join(''));
            options.data.port = port;
            return port;
        },
        "transport=",
        peg$literalExpectation("transport=", true),
        "udp",
        peg$literalExpectation("udp", true),
        "tcp",
        peg$literalExpectation("tcp", true),
        "sctp",
        peg$literalExpectation("sctp", true),
        "tls",
        peg$literalExpectation("tls", true),
        function (transport) {
            options = options || { data: {} };
            if (!options.data.uri_params)
                options.data.uri_params = {};
            options.data.uri_params['transport'] = transport.toLowerCase();
        },
        "user=",
        peg$literalExpectation("user=", true),
        "phone",
        peg$literalExpectation("phone", true),
        "ip",
        peg$literalExpectation("ip", true),
        function (user) {
            options = options || { data: {} };
            if (!options.data.uri_params)
                options.data.uri_params = {};
            options.data.uri_params['user'] = user.toLowerCase();
        },
        "method=",
        peg$literalExpectation("method=", true),
        function (method) {
            options = options || { data: {} };
            if (!options.data.uri_params)
                options.data.uri_params = {};
            options.data.uri_params['method'] = method;
        },
        "ttl=",
        peg$literalExpectation("ttl=", true),
        function (ttl) {
            options = options || { data: {} };
            if (!options.data.params)
                options.data.params = {};
            options.data.params['ttl'] = ttl;
        },
        "maddr=",
        peg$literalExpectation("maddr=", true),
        function (maddr) {
            options = options || { data: {} };
            if (!options.data.uri_params)
                options.data.uri_params = {};
            options.data.uri_params['maddr'] = maddr;
        },
        "lr",
        peg$literalExpectation("lr", true),
        function () {
            options = options || { data: {} };
            if (!options.data.uri_params)
                options.data.uri_params = {};
            options.data.uri_params['lr'] = undefined;
        },
        function (param, value) {
            options = options || { data: {} };
            if (!options.data.uri_params)
                options.data.uri_params = {};
            if (value === null) {
                value = undefined;
            }
            else {
                value = value[1];
            }
            options.data.uri_params[param.toLowerCase()] = value;
        },
        function (hname, hvalue) {
            hname = hname.join('').toLowerCase();
            hvalue = hvalue.join('');
            options = options || { data: {} };
            if (!options.data.uri_headers)
                options.data.uri_headers = {};
            if (!options.data.uri_headers[hname]) {
                options.data.uri_headers[hname] = [hvalue];
            }
            else {
                options.data.uri_headers[hname].push(hvalue);
            }
        },
        function () {
            options = options || { data: {} };
            // lots of tests fail if this isn't guarded...
            if (options.startRule === 'Refer_To') {
                options.data.uri = new uri_1.URI(options.data.scheme, options.data.user, options.data.host, options.data.port, options.data.uri_params, options.data.uri_headers);
                delete options.data.scheme;
                delete options.data.user;
                delete options.data.host;
                delete options.data.host_type;
                delete options.data.port;
                delete options.data.uri_params;
            }
        },
        "//",
        peg$literalExpectation("//", false),
        function () {
            options = options || { data: {} };
            options.data.scheme = text();
        },
        peg$literalExpectation("SIP", true),
        function () {
            options = options || { data: {} };
            options.data.sip_version = text();
        },
        "INVITE",
        peg$literalExpectation("INVITE", false),
        "ACK",
        peg$literalExpectation("ACK", false),
        "VXACH",
        peg$literalExpectation("VXACH", false),
        "OPTIONS",
        peg$literalExpectation("OPTIONS", false),
        "BYE",
        peg$literalExpectation("BYE", false),
        "CANCEL",
        peg$literalExpectation("CANCEL", false),
        "REGISTER",
        peg$literalExpectation("REGISTER", false),
        "SUBSCRIBE",
        peg$literalExpectation("SUBSCRIBE", false),
        "NOTIFY",
        peg$literalExpectation("NOTIFY", false),
        "REFER",
        peg$literalExpectation("REFER", false),
        "PUBLISH",
        peg$literalExpectation("PUBLISH", false),
        function () {
            options = options || { data: {} };
            options.data.method = text();
            return options.data.method;
        },
        function (status_code) {
            options = options || { data: {} };
            options.data.status_code = parseInt(status_code.join(''));
        },
        function () {
            options = options || { data: {} };
            options.data.reason_phrase = text();
        },
        function () {
            options = options || { data: {} };
            options.data = text();
        },
        function () {
            var idx, length;
            options = options || { data: {} };
            length = options.data.multi_header.length;
            for (idx = 0; idx < length; idx++) {
                if (options.data.multi_header[idx].parsed === null) {
                    options.data = null;
                    break;
                }
            }
            if (options.data !== null) {
                options.data = options.data.multi_header;
            }
            else {
                options.data = -1;
            }
        },
        function () {
            var header;
            options = options || { data: {} };
            if (!options.data.multi_header)
                options.data.multi_header = [];
            try {
                header = new name_addr_header_1.NameAddrHeader(options.data.uri, options.data.displayName, options.data.params);
                delete options.data.uri;
                delete options.data.displayName;
                delete options.data.params;
            }
            catch (e) {
                header = null;
            }
            options.data.multi_header.push({ 'position': peg$currPos,
                'offset': location().start.offset,
                'parsed': header
            });
        },
        function (displayName) {
            displayName = text().trim();
            if (displayName[0] === '\"') {
                displayName = displayName.substring(1, displayName.length - 1);
            }
            options = options || { data: {} };
            options.data.displayName = displayName;
        },
        "q",
        peg$literalExpectation("q", true),
        function (q) {
            options = options || { data: {} };
            if (!options.data.params)
                options.data.params = {};
            options.data.params['q'] = q;
        },
        "expires",
        peg$literalExpectation("expires", true),
        function (expires) {
            options = options || { data: {} };
            if (!options.data.params)
                options.data.params = {};
            options.data.params['expires'] = expires;
        },
        function (delta_seconds) {
            return parseInt(delta_seconds.join(''));
        },
        "0",
        peg$literalExpectation("0", false),
        function () {
            return parseFloat(text());
        },
        function (param, value) {
            options = options || { data: {} };
            if (!options.data.params)
                options.data.params = {};
            if (value === null) {
                value = undefined;
            }
            else {
                value = value[1];
            }
            options.data.params[param.toLowerCase()] = value;
        },
        "render",
        peg$literalExpectation("render", true),
        "session",
        peg$literalExpectation("session", true),
        "icon",
        peg$literalExpectation("icon", true),
        "alert",
        peg$literalExpectation("alert", true),
        function () {
            options = options || { data: {} };
            if (options.startRule === 'Content_Disposition') {
                options.data.type = text().toLowerCase();
            }
        },
        "handling",
        peg$literalExpectation("handling", true),
        "optional",
        peg$literalExpectation("optional", true),
        "required",
        peg$literalExpectation("required", true),
        function (length) {
            options = options || { data: {} };
            options.data = parseInt(length.join(''));
        },
        function () {
            options = options || { data: {} };
            options.data = text();
        },
        "text",
        peg$literalExpectation("text", true),
        "image",
        peg$literalExpectation("image", true),
        "audio",
        peg$literalExpectation("audio", true),
        "video",
        peg$literalExpectation("video", true),
        "application",
        peg$literalExpectation("application", true),
        "message",
        peg$literalExpectation("message", true),
        "multipart",
        peg$literalExpectation("multipart", true),
        "x-",
        peg$literalExpectation("x-", true),
        function (cseq_value) {
            options = options || { data: {} };
            options.data.value = parseInt(cseq_value.join(''));
        },
        function (expires) { options = options || { data: {} }; options.data = expires; },
        function (event_type) {
            options = options || { data: {} };
            options.data.event = event_type.toLowerCase();
        },
        function () {
            options = options || { data: {} };
            var tag = options.data.tag;
            options.data = new name_addr_header_1.NameAddrHeader(options.data.uri, options.data.displayName, options.data.params);
            if (tag) {
                options.data.setParam('tag', tag);
            }
        },
        "tag",
        peg$literalExpectation("tag", true),
        function (tag) { options = options || { data: {} }; options.data.tag = tag; },
        function (forwards) {
            options = options || { data: {} };
            options.data = parseInt(forwards.join(''));
        },
        function (min_expires) { options = options || { data: {} }; options.data = min_expires; },
        function () {
            options = options || { data: {} };
            options.data = new name_addr_header_1.NameAddrHeader(options.data.uri, options.data.displayName, options.data.params);
        },
        "digest",
        peg$literalExpectation("Digest", true),
        "realm",
        peg$literalExpectation("realm", true),
        function (realm) { options = options || { data: {} }; options.data.realm = realm; },
        "domain",
        peg$literalExpectation("domain", true),
        "nonce",
        peg$literalExpectation("nonce", true),
        function (nonce) { options = options || { data: {} }; options.data.nonce = nonce; },
        "opaque",
        peg$literalExpectation("opaque", true),
        function (opaque) { options = options || { data: {} }; options.data.opaque = opaque; },
        "stale",
        peg$literalExpectation("stale", true),
        "true",
        peg$literalExpectation("true", true),
        function () { options = options || { data: {} }; options.data.stale = true; },
        "false",
        peg$literalExpectation("false", true),
        function () { options = options || { data: {} }; options.data.stale = false; },
        "algorithm",
        peg$literalExpectation("algorithm", true),
        "md5",
        peg$literalExpectation("MD5", true),
        "md5-sess",
        peg$literalExpectation("MD5-sess", true),
        function (algorithm) {
            options = options || { data: {} };
            options.data.algorithm = algorithm.toUpperCase();
        },
        "qop",
        peg$literalExpectation("qop", true),
        "auth-int",
        peg$literalExpectation("auth-int", true),
        "auth",
        peg$literalExpectation("auth", true),
        function (qop_value) {
            options = options || { data: {} };
            options.data.qop || (options.data.qop = []);
            options.data.qop.push(qop_value.toLowerCase());
        },
        function (rack_value) {
            options = options || { data: {} };
            options.data.value = parseInt(rack_value.join(''));
        },
        function () {
            var idx, length;
            options = options || { data: {} };
            length = options.data.multi_header.length;
            for (idx = 0; idx < length; idx++) {
                if (options.data.multi_header[idx].parsed === null) {
                    options.data = null;
                    break;
                }
            }
            if (options.data !== null) {
                options.data = options.data.multi_header;
            }
            else {
                options.data = -1;
            }
        },
        function () {
            var header;
            options = options || { data: {} };
            if (!options.data.multi_header)
                options.data.multi_header = [];
            try {
                header = new name_addr_header_1.NameAddrHeader(options.data.uri, options.data.displayName, options.data.params);
                delete options.data.uri;
                delete options.data.displayName;
                delete options.data.params;
            }
            catch (e) {
                header = null;
            }
            options.data.multi_header.push({ 'position': peg$currPos,
                'offset': location().start.offset,
                'parsed': header
            });
        },
        function () {
            options = options || { data: {} };
            options.data = new name_addr_header_1.NameAddrHeader(options.data.uri, options.data.displayName, options.data.params);
        },
        function () {
            options = options || { data: {} };
            if (!(options.data.replaces_from_tag && options.data.replaces_to_tag)) {
                options.data = -1;
            }
        },
        function () {
            options = options || { data: {} };
            options.data = {
                call_id: options.data
            };
        },
        "from-tag",
        peg$literalExpectation("from-tag", true),
        function (from_tag) {
            options = options || { data: {} };
            options.data.replaces_from_tag = from_tag;
        },
        "to-tag",
        peg$literalExpectation("to-tag", true),
        function (to_tag) {
            options = options || { data: {} };
            options.data.replaces_to_tag = to_tag;
        },
        "early-only",
        peg$literalExpectation("early-only", true),
        function () {
            options = options || { data: {} };
            options.data.early_only = true;
        },
        function (head, r) { return r; },
        function (head, tail) { return list(head, tail); },
        function (value) {
            options = options || { data: {} };
            if (options.startRule === 'Require') {
                options.data = value || [];
            }
        },
        function (rseq_value) {
            options = options || { data: {} };
            options.data.value = parseInt(rseq_value.join(''));
        },
        "active",
        peg$literalExpectation("active", true),
        "pending",
        peg$literalExpectation("pending", true),
        "terminated",
        peg$literalExpectation("terminated", true),
        function () {
            options = options || { data: {} };
            options.data.state = text();
        },
        "reason",
        peg$literalExpectation("reason", true),
        function (reason) {
            options = options || { data: {} };
            if (typeof reason !== 'undefined')
                options.data.reason = reason;
        },
        function (expires) {
            options = options || { data: {} };
            if (typeof expires !== 'undefined')
                options.data.expires = expires;
        },
        "retry_after",
        peg$literalExpectation("retry_after", true),
        function (retry_after) {
            options = options || { data: {} };
            if (typeof retry_after !== 'undefined')
                options.data.retry_after = retry_after;
        },
        "deactivated",
        peg$literalExpectation("deactivated", true),
        "probation",
        peg$literalExpectation("probation", true),
        "rejected",
        peg$literalExpectation("rejected", true),
        "timeout",
        peg$literalExpectation("timeout", true),
        "giveup",
        peg$literalExpectation("giveup", true),
        "noresource",
        peg$literalExpectation("noresource", true),
        "invariant",
        peg$literalExpectation("invariant", true),
        function (value) {
            options = options || { data: {} };
            if (options.startRule === 'Supported') {
                options.data = value || [];
            }
        },
        function () {
            options = options || { data: {} };
            var tag = options.data.tag;
            options.data = new name_addr_header_1.NameAddrHeader(options.data.uri, options.data.displayName, options.data.params);
            if (tag) {
                options.data.setParam('tag', tag);
            }
        },
        "ttl",
        peg$literalExpectation("ttl", true),
        function (via_ttl_value) {
            options = options || { data: {} };
            options.data.ttl = via_ttl_value;
        },
        "maddr",
        peg$literalExpectation("maddr", true),
        function (via_maddr) {
            options = options || { data: {} };
            options.data.maddr = via_maddr;
        },
        "received",
        peg$literalExpectation("received", true),
        function (via_received) {
            options = options || { data: {} };
            options.data.received = via_received;
        },
        "branch",
        peg$literalExpectation("branch", true),
        function (via_branch) {
            options = options || { data: {} };
            options.data.branch = via_branch;
        },
        "rport",
        peg$literalExpectation("rport", true),
        function (response_port) {
            options = options || { data: {} };
            if (typeof response_port !== 'undefined')
                options.data.rport = response_port.join('');
        },
        function (via_protocol) {
            options = options || { data: {} };
            options.data.protocol = via_protocol;
        },
        peg$literalExpectation("UDP", true),
        peg$literalExpectation("TCP", true),
        peg$literalExpectation("TLS", true),
        peg$literalExpectation("SCTP", true),
        function (via_transport) {
            options = options || { data: {} };
            options.data.transport = via_transport;
        },
        function () {
            options = options || { data: {} };
            options.data.host = text();
        },
        function (via_sent_by_port) {
            options = options || { data: {} };
            options.data.port = parseInt(via_sent_by_port.join(''));
        },
        function (ttl) {
            return parseInt(ttl.join(''));
        },
        function (deltaSeconds) {
            options = options || { data: {} };
            if (options.startRule === 'Session_Expires') {
                options.data.deltaSeconds = deltaSeconds;
            }
        },
        "refresher",
        peg$literalExpectation("refresher", false),
        "uas",
        peg$literalExpectation("uas", false),
        "uac",
        peg$literalExpectation("uac", false),
        function (endpoint) {
            options = options || { data: {} };
            if (options.startRule === 'Session_Expires') {
                options.data.refresher = endpoint;
            }
        },
        function (deltaSeconds) {
            options = options || { data: {} };
            if (options.startRule === 'Min_SE') {
                options.data = deltaSeconds;
            }
        },
        "stuns",
        peg$literalExpectation("stuns", true),
        "stun",
        peg$literalExpectation("stun", true),
        function (scheme) {
            options = options || { data: {} };
            options.data.scheme = scheme;
        },
        function (host) {
            options = options || { data: {} };
            options.data.host = host;
        },
        "?transport=",
        peg$literalExpectation("?transport=", false),
        "turns",
        peg$literalExpectation("turns", true),
        "turn",
        peg$literalExpectation("turn", true),
        function (transport) {
            options = options || { data: {} };
            options.data.transport = transport;
        },
        function () {
            options = options || { data: {} };
            options.data = text();
        },
        "Referred-By",
        peg$literalExpectation("Referred-By", false),
        "b",
        peg$literalExpectation("b", false),
        "cid",
        peg$literalExpectation("cid", false)
    ];
    var peg$bytecode = [
        peg$decode("2 \"\"6 7!"),
        peg$decode("4\"\"\"5!7#"),
        peg$decode("4$\"\"5!7%"),
        peg$decode("4&\"\"5!7'"),
        peg$decode(";'.# &;("),
        peg$decode("4(\"\"5!7)"),
        peg$decode("4*\"\"5!7+"),
        peg$decode("2,\"\"6,7-"),
        peg$decode("2.\"\"6.7/"),
        peg$decode("40\"\"5!71"),
        peg$decode("22\"\"6273.\x89 &24\"\"6475.} &26\"\"6677.q &28\"\"6879.e &2:\"\"6:7;.Y &2<\"\"6<7=.M &2>\"\"6>7?.A &2@\"\"6@7A.5 &2B\"\"6B7C.) &2D\"\"6D7E"),
        peg$decode(";).# &;,"),
        peg$decode("2F\"\"6F7G.} &2H\"\"6H7I.q &2J\"\"6J7K.e &2L\"\"6L7M.Y &2N\"\"6N7O.M &2P\"\"6P7Q.A &2R\"\"6R7S.5 &2T\"\"6T7U.) &2V\"\"6V7W"),
        peg$decode("%%2X\"\"6X7Y/5#;#/,$;#/#$+#)(#'#(\"'#&'#/\"!&,)"),
        peg$decode("%%$;$0#*;$&/,#; /#$+\")(\"'#&'#.\" &\"/=#$;$/&#0#*;$&&&#/'$8\":Z\" )(\"'#&'#"),
        peg$decode(";..\" &\""),
        peg$decode("%$;'.# &;(0)*;'.# &;(&/?#28\"\"6879/0$;//'$8#:[# )(#'#(\"'#&'#"),
        peg$decode("%%$;2/&#0#*;2&&&#/g#$%$;.0#*;.&/,#;2/#$+\")(\"'#&'#0=*%$;.0#*;.&/,#;2/#$+\")(\"'#&'#&/#$+\")(\"'#&'#/\"!&,)"),
        peg$decode("4\\\"\"5!7].# &;3"),
        peg$decode("4^\"\"5!7_"),
        peg$decode("4`\"\"5!7a"),
        peg$decode(";!.) &4b\"\"5!7c"),
        peg$decode("%$;).\x95 &2F\"\"6F7G.\x89 &2J\"\"6J7K.} &2L\"\"6L7M.q &2X\"\"6X7Y.e &2P\"\"6P7Q.Y &2H\"\"6H7I.M &2@\"\"6@7A.A &2d\"\"6d7e.5 &2R\"\"6R7S.) &2N\"\"6N7O/\x9E#0\x9B*;).\x95 &2F\"\"6F7G.\x89 &2J\"\"6J7K.} &2L\"\"6L7M.q &2X\"\"6X7Y.e &2P\"\"6P7Q.Y &2H\"\"6H7I.M &2@\"\"6@7A.A &2d\"\"6d7e.5 &2R\"\"6R7S.) &2N\"\"6N7O&&&#/\"!&,)"),
        peg$decode("%$;).\x89 &2F\"\"6F7G.} &2L\"\"6L7M.q &2X\"\"6X7Y.e &2P\"\"6P7Q.Y &2H\"\"6H7I.M &2@\"\"6@7A.A &2d\"\"6d7e.5 &2R\"\"6R7S.) &2N\"\"6N7O/\x92#0\x8F*;).\x89 &2F\"\"6F7G.} &2L\"\"6L7M.q &2X\"\"6X7Y.e &2P\"\"6P7Q.Y &2H\"\"6H7I.M &2@\"\"6@7A.A &2d\"\"6d7e.5 &2R\"\"6R7S.) &2N\"\"6N7O&&&#/\"!&,)"),
        peg$decode("2T\"\"6T7U.\xE3 &2V\"\"6V7W.\xD7 &2f\"\"6f7g.\xCB &2h\"\"6h7i.\xBF &2:\"\"6:7;.\xB3 &2D\"\"6D7E.\xA7 &22\"\"6273.\x9B &28\"\"6879.\x8F &2j\"\"6j7k.\x83 &;&.} &24\"\"6475.q &2l\"\"6l7m.e &2n\"\"6n7o.Y &26\"\"6677.M &2>\"\"6>7?.A &2p\"\"6p7q.5 &2r\"\"6r7s.) &;'.# &;("),
        peg$decode("%$;).\u012B &2F\"\"6F7G.\u011F &2J\"\"6J7K.\u0113 &2L\"\"6L7M.\u0107 &2X\"\"6X7Y.\xFB &2P\"\"6P7Q.\xEF &2H\"\"6H7I.\xE3 &2@\"\"6@7A.\xD7 &2d\"\"6d7e.\xCB &2R\"\"6R7S.\xBF &2N\"\"6N7O.\xB3 &2T\"\"6T7U.\xA7 &2V\"\"6V7W.\x9B &2f\"\"6f7g.\x8F &2h\"\"6h7i.\x83 &28\"\"6879.w &2j\"\"6j7k.k &;&.e &24\"\"6475.Y &2l\"\"6l7m.M &2n\"\"6n7o.A &26\"\"6677.5 &2p\"\"6p7q.) &2r\"\"6r7s/\u0134#0\u0131*;).\u012B &2F\"\"6F7G.\u011F &2J\"\"6J7K.\u0113 &2L\"\"6L7M.\u0107 &2X\"\"6X7Y.\xFB &2P\"\"6P7Q.\xEF &2H\"\"6H7I.\xE3 &2@\"\"6@7A.\xD7 &2d\"\"6d7e.\xCB &2R\"\"6R7S.\xBF &2N\"\"6N7O.\xB3 &2T\"\"6T7U.\xA7 &2V\"\"6V7W.\x9B &2f\"\"6f7g.\x8F &2h\"\"6h7i.\x83 &28\"\"6879.w &2j\"\"6j7k.k &;&.e &24\"\"6475.Y &2l\"\"6l7m.M &2n\"\"6n7o.A &26\"\"6677.5 &2p\"\"6p7q.) &2r\"\"6r7s&&&#/\"!&,)"),
        peg$decode("%;//?#2P\"\"6P7Q/0$;//'$8#:t# )(#'#(\"'#&'#"),
        peg$decode("%;//?#24\"\"6475/0$;//'$8#:u# )(#'#(\"'#&'#"),
        peg$decode("%;//?#2>\"\"6>7?/0$;//'$8#:v# )(#'#(\"'#&'#"),
        peg$decode("%;//?#2T\"\"6T7U/0$;//'$8#:w# )(#'#(\"'#&'#"),
        peg$decode("%;//?#2V\"\"6V7W/0$;//'$8#:x# )(#'#(\"'#&'#"),
        peg$decode("%2h\"\"6h7i/0#;//'$8\":y\" )(\"'#&'#"),
        peg$decode("%;//6#2f\"\"6f7g/'$8\":z\" )(\"'#&'#"),
        peg$decode("%;//?#2D\"\"6D7E/0$;//'$8#:{# )(#'#(\"'#&'#"),
        peg$decode("%;//?#22\"\"6273/0$;//'$8#:|# )(#'#(\"'#&'#"),
        peg$decode("%;//?#28\"\"6879/0$;//'$8#:}# )(#'#(\"'#&'#"),
        peg$decode("%;//0#;&/'$8\":~\" )(\"'#&'#"),
        peg$decode("%;&/0#;//'$8\":~\" )(\"'#&'#"),
        peg$decode("%;=/T#$;G.) &;K.# &;F0/*;G.) &;K.# &;F&/,$;>/#$+#)(#'#(\"'#&'#"),
        peg$decode("4\x7F\"\"5!7\x80.A &4\x81\"\"5!7\x82.5 &4\x83\"\"5!7\x84.) &;3.# &;."),
        peg$decode("%%;//Q#;&/H$$;J.# &;K0)*;J.# &;K&/,$;&/#$+$)($'#(#'#(\"'#&'#/\"!&,)"),
        peg$decode("%;//]#;&/T$%$;J.# &;K0)*;J.# &;K&/\"!&,)/1$;&/($8$:\x85$!!)($'#(#'#(\"'#&'#"),
        peg$decode(";..G &2L\"\"6L7M.; &4\x86\"\"5!7\x87./ &4\x83\"\"5!7\x84.# &;3"),
        peg$decode("%2j\"\"6j7k/J#4\x88\"\"5!7\x89.5 &4\x8A\"\"5!7\x8B.) &4\x8C\"\"5!7\x8D/#$+\")(\"'#&'#"),
        peg$decode("%;N/M#28\"\"6879/>$;O.\" &\"/0$;S/'$8$:\x8E$ )($'#(#'#(\"'#&'#"),
        peg$decode("%;N/d#28\"\"6879/U$;O.\" &\"/G$;S/>$;_/5$;l.\" &\"/'$8&:\x8F& )(&'#(%'#($'#(#'#(\"'#&'#"),
        peg$decode("%3\x90\"\"5$7\x91.) &3\x92\"\"5#7\x93/' 8!:\x94!! )"),
        peg$decode("%;P/]#%28\"\"6879/,#;R/#$+\")(\"'#&'#.\" &\"/6$2:\"\"6:7;/'$8#:\x95# )(#'#(\"'#&'#"),
        peg$decode("$;+.) &;-.# &;Q/2#0/*;+.) &;-.# &;Q&&&#"),
        peg$decode("2<\"\"6<7=.q &2>\"\"6>7?.e &2@\"\"6@7A.Y &2B\"\"6B7C.M &2D\"\"6D7E.A &22\"\"6273.5 &26\"\"6677.) &24\"\"6475"),
        peg$decode("%$;+._ &;-.Y &2<\"\"6<7=.M &2>\"\"6>7?.A &2@\"\"6@7A.5 &2B\"\"6B7C.) &2D\"\"6D7E0e*;+._ &;-.Y &2<\"\"6<7=.M &2>\"\"6>7?.A &2@\"\"6@7A.5 &2B\"\"6B7C.) &2D\"\"6D7E&/& 8!:\x96! )"),
        peg$decode("%;T/J#%28\"\"6879/,#;^/#$+\")(\"'#&'#.\" &\"/#$+\")(\"'#&'#"),
        peg$decode("%;U.) &;\\.# &;X/& 8!:\x97! )"),
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        peg$decode("%;\x96/& 8!:\u0150! )"),
        peg$decode("%3\u0151\"\"5(7\u0152/:#;</1$;6/($8#:\u0153#! )(#'#(\"'#&'#.g &%3\u0154\"\"5&7\u0155/:#;</1$;6/($8#:\u0156#! )(#'#(\"'#&'#.: &%3\u0157\"\"5*7\u0158/& 8!:\u0159! ).# &;\xA0"),
        peg$decode("%%;6/k#$%;A/2#;6/)$8\":\u015A\"\"$ )(\"'#&'#0<*%;A/2#;6/)$8\":\u015A\"\"$ )(\"'#&'#&/)$8\":\u015B\"\"! )(\"'#&'#.\" &\"/' 8!:\u015C!! )"),
        peg$decode("%;\xD8/Y#$%;A/,#;\xD8/#$+\")(\"'#&'#06*%;A/,#;\xD8/#$+\")(\"'#&'#&/#$+\")(\"'#&'#"),
        peg$decode("%;\x99/Y#$%;B/,#;\xA0/#$+\")(\"'#&'#06*%;B/,#;\xA0/#$+\")(\"'#&'#&/#$+\")(\"'#&'#"),
        peg$decode("%$;!/&#0#*;!&&&#/' 8!:\u015D!! )"),
        peg$decode("%;\xDB/Y#$%;B/,#;\xDC/#$+\")(\"'#&'#06*%;B/,#;\xDC/#$+\")(\"'#&'#&/#$+\")(\"'#&'#"),
        peg$decode("%3\u015E\"\"5&7\u015F.; &3\u0160\"\"5'7\u0161./ &3\u0162\"\"5*7\u0163.# &;6/& 8!:\u0164! )"),
        peg$decode("%3\u0165\"\"5&7\u0166/:#;</1$;\xDD/($8#:\u0167#! )(#'#(\"'#&'#.} &%3\xF5\"\"5'7\xF6/:#;</1$;\x9E/($8#:\u0168#! )(#'#(\"'#&'#.P &%3\u0169\"\"5+7\u016A/:#;</1$;\x9E/($8#:\u016B#! )(#'#(\"'#&'#.# &;\xA0"),
        peg$decode("3\u016C\"\"5+7\u016D.k &3\u016E\"\"5)7\u016F._ &3\u0170\"\"5(7\u0171.S &3\u0172\"\"5'7\u0173.G &3\u0174\"\"5&7\u0175.; &3\u0176\"\"5*7\u0177./ &3\u0178\"\"5)7\u0179.# &;6"),
        peg$decode(";1.\" &\""),
        peg$decode("%%;6/k#$%;A/2#;6/)$8\":\u015A\"\"$ )(\"'#&'#0<*%;A/2#;6/)$8\":\u015A\"\"$ )(\"'#&'#&/)$8\":\u015B\"\"! )(\"'#&'#.\" &\"/' 8!:\u017A!! )"),
        peg$decode("%;L.# &;\x99/]#$%;B/,#;\xE1/#$+\")(\"'#&'#06*%;B/,#;\xE1/#$+\")(\"'#&'#&/'$8\":\u017B\" )(\"'#&'#"),
        peg$decode(";\xB9.# &;\xA0"),
        peg$decode("%;\xE3/Y#$%;A/,#;\xE3/#$+\")(\"'#&'#06*%;A/,#;\xE3/#$+\")(\"'#&'#&/#$+\")(\"'#&'#"),
        peg$decode("%;\xEA/k#;./b$;\xED/Y$$%;B/,#;\xE4/#$+\")(\"'#&'#06*%;B/,#;\xE4/#$+\")(\"'#&'#&/#$+$)($'#(#'#(\"'#&'#"),
        peg$decode(";\xE5.; &;\xE6.5 &;\xE7./ &;\xE8.) &;\xE9.# &;\xA0"),
        peg$decode("%3\u017C\"\"5#7\u017D/:#;</1$;\xF0/($8#:\u017E#! )(#'#(\"'#&'#"),
        peg$decode("%3\u017F\"\"5%7\u0180/:#;</1$;T/($8#:\u0181#! )(#'#(\"'#&'#"),
        peg$decode("%3\u0182\"\"5(7\u0183/F#;</=$;\\.) &;Y.# &;X/($8#:\u0184#! )(#'#(\"'#&'#"),
        peg$decode("%3\u0185\"\"5&7\u0186/:#;</1$;6/($8#:\u0187#! )(#'#(\"'#&'#"),
        peg$decode("%3\u0188\"\"5%7\u0189/A#;</8$$;!0#*;!&/($8#:\u018A#! )(#'#(\"'#&'#"),
        peg$decode("%;\xEB/G#;;/>$;6/5$;;/,$;\xEC/#$+%)(%'#($'#(#'#(\"'#&'#"),
        peg$decode("%3\x92\"\"5#7\xD3.# &;6/' 8!:\u018B!! )"),
        peg$decode("%3\xB1\"\"5#7\u018C.G &3\xB3\"\"5#7\u018D.; &3\xB7\"\"5#7\u018E./ &3\xB5\"\"5$7\u018F.# &;6/' 8!:\u0190!! )"),
        peg$decode("%;\xEE/D#%;C/,#;\xEF/#$+\")(\"'#&'#.\" &\"/#$+\")(\"'#&'#"),
        peg$decode("%;U.) &;\\.# &;X/& 8!:\u0191! )"),
        peg$decode("%%;!.\" &\"/[#;!.\" &\"/M$;!.\" &\"/?$;!.\" &\"/1$;!.\" &\"/#$+%)(%'#($'#(#'#(\"'#&'#/' 8!:\u0192!! )"),
        peg$decode("%%;!/?#;!.\" &\"/1$;!.\" &\"/#$+#)(#'#(\"'#&'#/' 8!:\u0193!! )"),
        peg$decode(";\xBE"),
        peg$decode("%;\x9E/^#$%;B/,#;\xF3/#$+\")(\"'#&'#06*%;B/,#;\xF3/#$+\")(\"'#&'#&/($8\":\u0194\"!!)(\"'#&'#"),
        peg$decode(";\xF4.# &;\xA0"),
        peg$decode("%2\u0195\"\"6\u01957\u0196/L#;</C$2\u0197\"\"6\u01977\u0198.) &2\u0199\"\"6\u01997\u019A/($8#:\u019B#! )(#'#(\"'#&'#"),
        peg$decode("%;\x9E/^#$%;B/,#;\xA0/#$+\")(\"'#&'#06*%;B/,#;\xA0/#$+\")(\"'#&'#&/($8\":\u019C\"!!)(\"'#&'#"),
        peg$decode("%;6/5#;0/,$;\xF7/#$+#)(#'#(\"'#&'#"),
        peg$decode("$;2.) &;4.# &;.0/*;2.) &;4.# &;.&"),
        peg$decode("$;%0#*;%&"),
        peg$decode("%;\xFA/;#28\"\"6879/,$;\xFB/#$+#)(#'#(\"'#&'#"),
        peg$decode("%3\u019D\"\"5%7\u019E.) &3\u019F\"\"5$7\u01A0/' 8!:\u01A1!! )"),
        peg$decode("%;\xFC/J#%28\"\"6879/,#;^/#$+\")(\"'#&'#.\" &\"/#$+\")(\"'#&'#"),
        peg$decode("%;\\.) &;X.# &;\x82/' 8!:\u01A2!! )"),
        peg$decode(";\".S &;!.M &2F\"\"6F7G.A &2J\"\"6J7K.5 &2H\"\"6H7I.) &2N\"\"6N7O"),
        peg$decode("2L\"\"6L7M.\x95 &2B\"\"6B7C.\x89 &2<\"\"6<7=.} &2R\"\"6R7S.q &2T\"\"6T7U.e &2V\"\"6V7W.Y &2P\"\"6P7Q.M &2@\"\"6@7A.A &2D\"\"6D7E.5 &22\"\"6273.) &2>\"\"6>7?"),
        peg$decode("%;\u0100/b#28\"\"6879/S$;\xFB/J$%2\u01A3\"\"6\u01A37\u01A4/,#;\xEC/#$+\")(\"'#&'#.\" &\"/#$+$)($'#(#'#(\"'#&'#"),
        peg$decode("%3\u01A5\"\"5%7\u01A6.) &3\u01A7\"\"5$7\u01A8/' 8!:\u01A1!! )"),
        peg$decode("%3\xB1\"\"5#7\xB2.6 &3\xB3\"\"5#7\xB4.* &$;+0#*;+&/' 8!:\u01A9!! )"),
        peg$decode("%;\u0104/\x87#2F\"\"6F7G/x$;\u0103/o$2F\"\"6F7G/`$;\u0103/W$2F\"\"6F7G/H$;\u0103/?$2F\"\"6F7G/0$;\u0105/'$8):\u01AA) )()'#(('#(''#(&'#(%'#($'#(#'#(\"'#&'#"),
        peg$decode("%;#/>#;#/5$;#/,$;#/#$+$)($'#(#'#(\"'#&'#"),
        peg$decode("%;\u0103/,#;\u0103/#$+\")(\"'#&'#"),
        peg$decode("%;\u0103/5#;\u0103/,$;\u0103/#$+#)(#'#(\"'#&'#"),
        peg$decode("%;q/T#$;m0#*;m&/D$%; /,#;\xF8/#$+\")(\"'#&'#.\" &\"/#$+#)(#'#(\"'#&'#"),
        peg$decode("%2\u01AB\"\"6\u01AB7\u01AC.) &2\u01AD\"\"6\u01AD7\u01AE/w#;0/n$;\u0108/e$$%;B/2#;\u0109.# &;\xA0/#$+\")(\"'#&'#0<*%;B/2#;\u0109.# &;\xA0/#$+\")(\"'#&'#&/#$+$)($'#(#'#(\"'#&'#"),
        peg$decode(";\x99.# &;L"),
        peg$decode("%2\u01AF\"\"6\u01AF7\u01B0/5#;</,$;\u010A/#$+#)(#'#(\"'#&'#"),
        peg$decode("%;D/S#;,/J$2:\"\"6:7;/;$;,.# &;T/,$;E/#$+%)(%'#($'#(#'#(\"'#&'#")
    ];
    var peg$currPos = 0;
    var peg$savedPos = 0;
    var peg$posDetailsCache = [{ line: 1, column: 1 }];
    var peg$maxFailPos = 0;
    var peg$maxFailExpected = [];
    var peg$silentFails = 0;
    var peg$result;
    if (options.startRule !== undefined) {
        if (!(options.startRule in peg$startRuleIndices)) {
            throw new Error("Can't start parsing from rule \"" + options.startRule + "\".");
        }
        peg$startRuleIndex = peg$startRuleIndices[options.startRule];
    }
    function text() {
        return input.substring(peg$savedPos, peg$currPos);
    }
    function location() {
        return peg$computeLocation(peg$savedPos, peg$currPos);
    }
    function expected(description, location1) {
        location1 = location1 !== undefined
            ? location1
            : peg$computeLocation(peg$savedPos, peg$currPos);
        throw peg$buildStructuredError([peg$otherExpectation(description)], input.substring(peg$savedPos, peg$currPos), location1);
    }
    function error(message, location1) {
        location1 = location1 !== undefined
            ? location1
            : peg$computeLocation(peg$savedPos, peg$currPos);
        throw peg$buildSimpleError(message, location1);
    }
    function peg$literalExpectation(text1, ignoreCase) {
        return { type: "literal", text: text1, ignoreCase: ignoreCase };
    }
    function peg$classExpectation(parts, inverted, ignoreCase) {
        return { type: "class", parts: parts, inverted: inverted, ignoreCase: ignoreCase };
    }
    function peg$anyExpectation() {
        return { type: "any" };
    }
    function peg$endExpectation() {
        return { type: "end" };
    }
    function peg$otherExpectation(description) {
        return { type: "other", description: description };
    }
    function peg$computePosDetails(pos) {
        var details = peg$posDetailsCache[pos];
        var p;
        if (details) {
            return details;
        }
        else {
            p = pos - 1;
            while (!peg$posDetailsCache[p]) {
                p--;
            }
            details = peg$posDetailsCache[p];
            details = {
                line: details.line,
                column: details.column
            };
            while (p < pos) {
                if (input.charCodeAt(p) === 10) {
                    details.line++;
                    details.column = 1;
                }
                else {
                    details.column++;
                }
                p++;
            }
            peg$posDetailsCache[pos] = details;
            return details;
        }
    }
    function peg$computeLocation(startPos, endPos) {
        var startPosDetails = peg$computePosDetails(startPos);
        var endPosDetails = peg$computePosDetails(endPos);
        return {
            start: {
                offset: startPos,
                line: startPosDetails.line,
                column: startPosDetails.column
            },
            end: {
                offset: endPos,
                line: endPosDetails.line,
                column: endPosDetails.column
            }
        };
    }
    function peg$fail(expected1) {
        if (peg$currPos < peg$maxFailPos) {
            return;
        }
        if (peg$currPos > peg$maxFailPos) {
            peg$maxFailPos = peg$currPos;
            peg$maxFailExpected = [];
        }
        peg$maxFailExpected.push(expected1);
    }
    function peg$buildSimpleError(message, location1) {
        return new SyntaxError(message, [], "", location1);
    }
    function peg$buildStructuredError(expected1, found, location1) {
        return new SyntaxError(SyntaxError.buildMessage(expected1, found), expected1, found, location1);
    }
    function peg$decode(s) {
        return s.split("").map(function (ch) { return ch.charCodeAt(0) - 32; });
    }
    function peg$parseRule(index) {
        var bc = peg$bytecode[index];
        var ip = 0;
        var ips = [];
        var end = bc.length;
        var ends = [];
        var stack = [];
        var params;
        while (true) {
            while (ip < end) {
                switch (bc[ip]) {
                    case 0:
                        stack.push(peg$consts[bc[ip + 1]]);
                        ip += 2;
                        break;
                    case 1:
                        stack.push(undefined);
                        ip++;
                        break;
                    case 2:
                        stack.push(null);
                        ip++;
                        break;
                    case 3:
                        stack.push(peg$FAILED);
                        ip++;
                        break;
                    case 4:
                        stack.push([]);
                        ip++;
                        break;
                    case 5:
                        stack.push(peg$currPos);
                        ip++;
                        break;
                    case 6:
                        stack.pop();
                        ip++;
                        break;
                    case 7:
                        peg$currPos = stack.pop();
                        ip++;
                        break;
                    case 8:
                        stack.length -= bc[ip + 1];
                        ip += 2;
                        break;
                    case 9:
                        stack.splice(-2, 1);
                        ip++;
                        break;
                    case 10:
                        stack[stack.length - 2].push(stack.pop());
                        ip++;
                        break;
                    case 11:
                        stack.push(stack.splice(stack.length - bc[ip + 1], bc[ip + 1]));
                        ip += 2;
                        break;
                    case 12:
                        stack.push(input.substring(stack.pop(), peg$currPos));
                        ip++;
                        break;
                    case 13:
                        ends.push(end);
                        ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
                        if (stack[stack.length - 1]) {
                            end = ip + 3 + bc[ip + 1];
                            ip += 3;
                        }
                        else {
                            end = ip + 3 + bc[ip + 1] + bc[ip + 2];
                            ip += 3 + bc[ip + 1];
                        }
                        break;
                    case 14:
                        ends.push(end);
                        ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
                        if (stack[stack.length - 1] === peg$FAILED) {
                            end = ip + 3 + bc[ip + 1];
                            ip += 3;
                        }
                        else {
                            end = ip + 3 + bc[ip + 1] + bc[ip + 2];
                            ip += 3 + bc[ip + 1];
                        }
                        break;
                    case 15:
                        ends.push(end);
                        ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
                        if (stack[stack.length - 1] !== peg$FAILED) {
                            end = ip + 3 + bc[ip + 1];
                            ip += 3;
                        }
                        else {
                            end = ip + 3 + bc[ip + 1] + bc[ip + 2];
                            ip += 3 + bc[ip + 1];
                        }
                        break;
                    case 16:
                        if (stack[stack.length - 1] !== peg$FAILED) {
                            ends.push(end);
                            ips.push(ip);
                            end = ip + 2 + bc[ip + 1];
                            ip += 2;
                        }
                        else {
                            ip += 2 + bc[ip + 1];
                        }
                        break;
                    case 17:
                        ends.push(end);
                        ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
                        if (input.length > peg$currPos) {
                            end = ip + 3 + bc[ip + 1];
                            ip += 3;
                        }
                        else {
                            end = ip + 3 + bc[ip + 1] + bc[ip + 2];
                            ip += 3 + bc[ip + 1];
                        }
                        break;
                    case 18:
                        ends.push(end);
                        ips.push(ip + 4 + bc[ip + 2] + bc[ip + 3]);
                        if (input.substr(peg$currPos, peg$consts[bc[ip + 1]].length) === peg$consts[bc[ip + 1]]) {
                            end = ip + 4 + bc[ip + 2];
                            ip += 4;
                        }
                        else {
                            end = ip + 4 + bc[ip + 2] + bc[ip + 3];
                            ip += 4 + bc[ip + 2];
                        }
                        break;
                    case 19:
                        ends.push(end);
                        ips.push(ip + 4 + bc[ip + 2] + bc[ip + 3]);
                        if (input.substr(peg$currPos, peg$consts[bc[ip + 1]].length).toLowerCase() === peg$consts[bc[ip + 1]]) {
                            end = ip + 4 + bc[ip + 2];
                            ip += 4;
                        }
                        else {
                            end = ip + 4 + bc[ip + 2] + bc[ip + 3];
                            ip += 4 + bc[ip + 2];
                        }
                        break;
                    case 20:
                        ends.push(end);
                        ips.push(ip + 4 + bc[ip + 2] + bc[ip + 3]);
                        if (peg$consts[bc[ip + 1]].test(input.charAt(peg$currPos))) {
                            end = ip + 4 + bc[ip + 2];
                            ip += 4;
                        }
                        else {
                            end = ip + 4 + bc[ip + 2] + bc[ip + 3];
                            ip += 4 + bc[ip + 2];
                        }
                        break;
                    case 21:
                        stack.push(input.substr(peg$currPos, bc[ip + 1]));
                        peg$currPos += bc[ip + 1];
                        ip += 2;
                        break;
                    case 22:
                        stack.push(peg$consts[bc[ip + 1]]);
                        peg$currPos += peg$consts[bc[ip + 1]].length;
                        ip += 2;
                        break;
                    case 23:
                        stack.push(peg$FAILED);
                        if (peg$silentFails === 0) {
                            peg$fail(peg$consts[bc[ip + 1]]);
                        }
                        ip += 2;
                        break;
                    case 24:
                        peg$savedPos = stack[stack.length - 1 - bc[ip + 1]];
                        ip += 2;
                        break;
                    case 25:
                        peg$savedPos = peg$currPos;
                        ip++;
                        break;
                    case 26:
                        params = bc.slice(ip + 4, ip + 4 + bc[ip + 3])
                            .map(function (p) { return stack[stack.length - 1 - p]; });
                        stack.splice(stack.length - bc[ip + 2], bc[ip + 2], peg$consts[bc[ip + 1]].apply(null, params));
                        ip += 4 + bc[ip + 3];
                        break;
                    case 27:
                        stack.push(peg$parseRule(bc[ip + 1]));
                        ip += 2;
                        break;
                    case 28:
                        peg$silentFails++;
                        ip++;
                        break;
                    case 29:
                        peg$silentFails--;
                        ip++;
                        break;
                    default:
                        throw new Error("Invalid opcode: " + bc[ip] + ".");
                }
            }
            if (ends.length > 0) {
                end = ends.pop();
                ip = ips.pop();
            }
            else {
                break;
            }
        }
        return stack[0];
    }
    options.data = {}; // Object to which header attributes will be assigned during parsing
    function list(head, tail) {
        return [head].concat(tail);
    }
    peg$result = peg$parseRule(peg$startRuleIndex);
    if (peg$result !== peg$FAILED && peg$currPos === input.length) {
        return peg$result;
    }
    else {
        if (peg$result !== peg$FAILED && peg$currPos < input.length) {
            peg$fail(peg$endExpectation());
        }
        throw peg$buildStructuredError(peg$maxFailExpected, peg$maxFailPos < input.length ? input.charAt(peg$maxFailPos) : null, peg$maxFailPos < input.length
            ? peg$computeLocation(peg$maxFailPos, peg$maxFailPos + 1)
            : peg$computeLocation(peg$maxFailPos, peg$maxFailPos));
    }
}
exports.parse = peg$parse;


/***/ }),
/* 13 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var parameters_1 = __webpack_require__(14);
/**
 * Name Address SIP header.
 * @public
 */
var NameAddrHeader = /** @class */ (function (_super) {
    tslib_1.__extends(NameAddrHeader, _super);
    /**
     * Constructor
     * @param uri -
     * @param displayName -
     * @param parameters -
     */
    function NameAddrHeader(uri, displayName, parameters) {
        var _this = _super.call(this, parameters) || this;
        _this.uri = uri;
        _this._displayName = displayName;
        return _this;
    }
    Object.defineProperty(NameAddrHeader.prototype, "friendlyName", {
        get: function () {
            return this.displayName || this.uri.aor;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(NameAddrHeader.prototype, "displayName", {
        get: function () { return this._displayName; },
        set: function (value) {
            this._displayName = value;
        },
        enumerable: true,
        configurable: true
    });
    NameAddrHeader.prototype.clone = function () {
        return new NameAddrHeader(this.uri.clone(), this._displayName, JSON.parse(JSON.stringify(this.parameters)));
    };
    NameAddrHeader.prototype.toString = function () {
        var body = (this.displayName || this.displayName === "0") ? '"' + this.displayName + '" ' : "";
        body += "<" + this.uri.toString() + ">";
        for (var parameter in this.parameters) {
            if (this.parameters.hasOwnProperty(parameter)) {
                body += ";" + parameter;
                if (this.parameters[parameter] !== null) {
                    body += "=" + this.parameters[parameter];
                }
            }
        }
        return body;
    };
    return NameAddrHeader;
}(parameters_1.Parameters));
exports.NameAddrHeader = NameAddrHeader;


/***/ }),
/* 14 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * @internal
 */
var Parameters = /** @class */ (function () {
    function Parameters(parameters) {
        this.parameters = {};
        for (var param in parameters) {
            if (parameters.hasOwnProperty(param)) {
                this.setParam(param, parameters[param]);
            }
        }
    }
    Parameters.prototype.setParam = function (key, value) {
        if (key) {
            this.parameters[key.toLowerCase()] = (typeof value === "undefined" || value === null) ? null : value.toString();
        }
    };
    Parameters.prototype.getParam = function (key) {
        if (key) {
            return this.parameters[key.toLowerCase()];
        }
    };
    Parameters.prototype.hasParam = function (key) {
        if (key) {
            return !!this.parameters.hasOwnProperty(key.toLowerCase());
        }
        return false;
    };
    Parameters.prototype.deleteParam = function (parameter) {
        parameter = parameter.toLowerCase();
        if (this.parameters.hasOwnProperty(parameter)) {
            var value = this.parameters[parameter];
            delete this.parameters[parameter];
            return value;
        }
    };
    Parameters.prototype.clearParams = function () {
        this.parameters = {};
    };
    return Parameters;
}());
exports.Parameters = Parameters;


/***/ }),
/* 15 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var parameters_1 = __webpack_require__(14);
/**
 * URI.
 * @public
 */
var URI = /** @class */ (function (_super) {
    tslib_1.__extends(URI, _super);
    /**
     * Constructor
     * @param scheme -
     * @param user -
     * @param host -
     * @param port -
     * @param parameters -
     * @param headers -
     */
    function URI(scheme, user, host, port, parameters, headers) {
        var _this = _super.call(this, parameters) || this;
        _this.headers = {};
        // Checks
        if (!host) {
            throw new TypeError('missing or invalid "host" parameter');
        }
        // Initialize parameters
        scheme = scheme || "sip";
        for (var header in headers) {
            if (headers.hasOwnProperty(header)) {
                _this.setHeader(header, headers[header]);
            }
        }
        // Raw URI
        _this.raw = {
            scheme: scheme,
            user: user,
            host: host,
            port: port
        };
        // Normalized URI
        _this.normal = {
            scheme: scheme.toLowerCase(),
            user: user,
            host: host.toLowerCase(),
            port: port
        };
        return _this;
    }
    Object.defineProperty(URI.prototype, "scheme", {
        get: function () { return this.normal.scheme; },
        set: function (value) {
            this.raw.scheme = value;
            this.normal.scheme = value.toLowerCase();
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(URI.prototype, "user", {
        get: function () { return this.normal.user; },
        set: function (value) {
            this.normal.user = this.raw.user = value;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(URI.prototype, "host", {
        get: function () { return this.normal.host; },
        set: function (value) {
            this.raw.host = value;
            this.normal.host = value.toLowerCase();
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(URI.prototype, "aor", {
        get: function () { return this.normal.user + "@" + this.normal.host; },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(URI.prototype, "port", {
        get: function () { return this.normal.port; },
        set: function (value) {
            this.normal.port = this.raw.port = value === 0 ? value : value;
        },
        enumerable: true,
        configurable: true
    });
    URI.prototype.setHeader = function (name, value) {
        this.headers[this.headerize(name)] = (value instanceof Array) ? value : [value];
    };
    URI.prototype.getHeader = function (name) {
        if (name) {
            return this.headers[this.headerize(name)];
        }
    };
    URI.prototype.hasHeader = function (name) {
        return !!name && !!this.headers.hasOwnProperty(this.headerize(name));
    };
    URI.prototype.deleteHeader = function (header) {
        header = this.headerize(header);
        if (this.headers.hasOwnProperty(header)) {
            var value = this.headers[header];
            delete this.headers[header];
            return value;
        }
    };
    URI.prototype.clearHeaders = function () {
        this.headers = {};
    };
    URI.prototype.clone = function () {
        return new URI(this._raw.scheme, this._raw.user || "", this._raw.host, this._raw.port, JSON.parse(JSON.stringify(this.parameters)), JSON.parse(JSON.stringify(this.headers)));
    };
    URI.prototype.toRaw = function () {
        return this._toString(this._raw);
    };
    URI.prototype.toString = function () {
        return this._toString(this._normal);
    };
    Object.defineProperty(URI.prototype, "_normal", {
        get: function () { return this.normal; },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(URI.prototype, "_raw", {
        get: function () { return this.raw; },
        enumerable: true,
        configurable: true
    });
    URI.prototype._toString = function (uri) {
        var uriString = uri.scheme + ":";
        // add slashes if it's not a sip(s) URI
        if (!uri.scheme.toLowerCase().match("^sips?$")) {
            uriString += "//";
        }
        if (uri.user) {
            uriString += this.escapeUser(uri.user) + "@";
        }
        uriString += uri.host;
        if (uri.port || uri.port === 0) {
            uriString += ":" + uri.port;
        }
        for (var parameter in this.parameters) {
            if (this.parameters.hasOwnProperty(parameter)) {
                uriString += ";" + parameter;
                if (this.parameters[parameter] !== null) {
                    uriString += "=" + this.parameters[parameter];
                }
            }
        }
        var headers = [];
        for (var header in this.headers) {
            if (this.headers.hasOwnProperty(header)) {
                for (var idx in this.headers[header]) {
                    if (this.headers[header].hasOwnProperty(idx)) {
                        headers.push(header + "=" + this.headers[header][idx]);
                    }
                }
            }
        }
        if (headers.length > 0) {
            uriString += "?" + headers.join("&");
        }
        return uriString;
    };
    /*
     * Hex-escape a SIP URI user.
     * @private
     * @param {String} user
     */
    URI.prototype.escapeUser = function (user) {
        var decodedUser;
        // FIXME: This is called by toString above which should never throw, but
        // decodeURIComponent can throw and I've seen one case in production where
        // it did throw resulting in a cascading failure. This class should be
        // fixed so that decodeURIComponent is not called at this point (in toString).
        // The user should be decoded when the URI is constructor or some other
        // place where we can catch the error before the URI is created or somesuch.
        try {
            decodedUser = decodeURIComponent(user);
        }
        catch (error) {
            throw error;
        }
        // Don't hex-escape ':' (%3A), '+' (%2B), '?' (%3F"), '/' (%2F).
        return encodeURIComponent(decodedUser)
            .replace(/%3A/ig, ":")
            .replace(/%2B/ig, "+")
            .replace(/%3F/ig, "?")
            .replace(/%2F/ig, "/");
    };
    URI.prototype.headerize = function (str) {
        var exceptions = {
            "Call-Id": "Call-ID",
            "Cseq": "CSeq",
            "Min-Se": "Min-SE",
            "Rack": "RAck",
            "Rseq": "RSeq",
            "Www-Authenticate": "WWW-Authenticate",
        };
        var name = str.toLowerCase().replace(/_/g, "-").split("-");
        var parts = name.length;
        var hname = "";
        for (var part = 0; part < parts; part++) {
            if (part !== 0) {
                hname += "-";
            }
            hname += name[part].charAt(0).toUpperCase() + name[part].substring(1);
        }
        if (exceptions[hname]) {
            hname = exceptions[hname];
        }
        return hname;
    };
    return URI;
}(parameters_1.Parameters));
exports.URI = URI;


/***/ }),
/* 16 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * @param size -
 * @param base -
 * @internal
 */
function createRandomToken(size, base) {
    if (base === void 0) { base = 32; }
    var token = "";
    for (var i = 0; i < size; i++) {
        var r = Math.floor(Math.random() * base);
        token += r.toString(base);
    }
    return token;
}
exports.createRandomToken = createRandomToken;
/**
 * @internal
 */
function getReasonPhrase(code) {
    return REASON_PHRASE[code] || "";
}
exports.getReasonPhrase = getReasonPhrase;
/**
 * @internal
 */
function newTag() {
    return createRandomToken(10);
}
exports.newTag = newTag;
/**
 * @param str -
 * @internal
 */
function headerize(str) {
    var exceptions = {
        "Call-Id": "Call-ID",
        "Cseq": "CSeq",
        "Min-Se": "Min-SE",
        "Rack": "RAck",
        "Rseq": "RSeq",
        "Www-Authenticate": "WWW-Authenticate",
    };
    var name = str.toLowerCase().replace(/_/g, "-").split("-");
    var parts = name.length;
    var hname = "";
    for (var part = 0; part < parts; part++) {
        if (part !== 0) {
            hname += "-";
        }
        hname += name[part].charAt(0).toUpperCase() + name[part].substring(1);
    }
    if (exceptions[hname]) {
        hname = exceptions[hname];
    }
    return hname;
}
exports.headerize = headerize;
/**
 * @param str -
 * @internal
 */
function str_utf8_length(str) {
    return encodeURIComponent(str).replace(/%[A-F\d]{2}/g, "U").length;
}
exports.str_utf8_length = str_utf8_length;
/**
 * SIP Response Reasons
 * DOC: http://www.iana.org/assignments/sip-parameters
 * @internal
 */
var REASON_PHRASE = {
    100: "Trying",
    180: "Ringing",
    181: "Call Is Being Forwarded",
    182: "Queued",
    183: "Session Progress",
    199: "Early Dialog Terminated",
    200: "OK",
    202: "Accepted",
    204: "No Notification",
    300: "Multiple Choices",
    301: "Moved Permanently",
    302: "Moved Temporarily",
    305: "Use Proxy",
    380: "Alternative Service",
    400: "Bad Request",
    401: "Unauthorized",
    402: "Payment Required",
    403: "Forbidden",
    404: "Not Found",
    405: "Method Not Allowed",
    406: "Not Acceptable",
    407: "Proxy Authentication Required",
    408: "Request Timeout",
    410: "Gone",
    412: "Conditional Request Failed",
    413: "Request Entity Too Large",
    414: "Request-URI Too Long",
    415: "Unsupported Media Type",
    416: "Unsupported URI Scheme",
    417: "Unknown Resource-Priority",
    420: "Bad Extension",
    421: "Extension Required",
    422: "Session Interval Too Small",
    423: "Interval Too Brief",
    428: "Use Identity Header",
    429: "Provide Referrer Identity",
    430: "Flow Failed",
    433: "Anonymity Disallowed",
    436: "Bad Identity-Info",
    437: "Unsupported Certificate",
    438: "Invalid Identity Header",
    439: "First Hop Lacks Outbound Support",
    440: "Max-Breadth Exceeded",
    469: "Bad Info Package",
    470: "Consent Needed",
    478: "Unresolvable Destination",
    480: "Temporarily Unavailable",
    481: "Call/Transaction Does Not Exist",
    482: "Loop Detected",
    483: "Too Many Hops",
    484: "Address Incomplete",
    485: "Ambiguous",
    486: "Busy Here",
    487: "Request Terminated",
    488: "Not Acceptable Here",
    489: "Bad Event",
    491: "Request Pending",
    493: "Undecipherable",
    494: "Security Agreement Required",
    500: "Internal Server Error",
    501: "Not Implemented",
    502: "Bad Gateway",
    503: "Service Unavailable",
    504: "Server Time-out",
    505: "Version Not Supported",
    513: "Message Too Large",
    580: "Precondition Failure",
    600: "Busy Everywhere",
    603: "Decline",
    604: "Does Not Exist Anywhere",
    606: "Not Acceptable"
};


/***/ }),
/* 17 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var incoming_message_1 = __webpack_require__(10);
/**
 * Incoming response message.
 * @public
 */
var IncomingResponseMessage = /** @class */ (function (_super) {
    tslib_1.__extends(IncomingResponseMessage, _super);
    function IncomingResponseMessage() {
        return _super.call(this) || this;
    }
    return IncomingResponseMessage;
}(incoming_message_1.IncomingMessage));
exports.IncomingResponseMessage = IncomingResponseMessage;


/***/ }),
/* 18 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var name_addr_header_1 = __webpack_require__(13);
var utils_1 = __webpack_require__(16);
/**
 * Outgoing SIP request message.
 * @public
 */
var OutgoingRequestMessage = /** @class */ (function () {
    function OutgoingRequestMessage(method, ruri, fromURI, toURI, options, extraHeaders, body) {
        this.headers = {};
        this.extraHeaders = [];
        this.options = OutgoingRequestMessage.getDefaultOptions();
        // Options - merge a deep copy
        if (options) {
            this.options = tslib_1.__assign(tslib_1.__assign({}, this.options), options);
            if (this.options.optionTags && this.options.optionTags.length) {
                this.options.optionTags = this.options.optionTags.slice();
            }
            if (this.options.routeSet && this.options.routeSet.length) {
                this.options.routeSet = this.options.routeSet.slice();
            }
        }
        // Extra headers - deep copy
        if (extraHeaders && extraHeaders.length) {
            this.extraHeaders = extraHeaders.slice();
        }
        // Body - deep copy
        if (body) {
            // TODO: internal representation should be Body
            // this.body = { ...body };
            this.body = {
                body: body.content,
                contentType: body.contentType
            };
        }
        // Method
        this.method = method;
        // RURI
        this.ruri = ruri.clone();
        // From
        this.fromURI = fromURI.clone();
        this.fromTag = this.options.fromTag ? this.options.fromTag : utils_1.newTag();
        this.from = OutgoingRequestMessage.makeNameAddrHeader(this.fromURI, this.options.fromDisplayName, this.fromTag);
        // To
        this.toURI = toURI.clone();
        this.toTag = this.options.toTag;
        this.to = OutgoingRequestMessage.makeNameAddrHeader(this.toURI, this.options.toDisplayName, this.toTag);
        // Call-ID
        this.callId = this.options.callId ? this.options.callId : this.options.callIdPrefix + utils_1.createRandomToken(15);
        // CSeq
        this.cseq = this.options.cseq;
        // The relative order of header fields with different field names is not
        // significant.  However, it is RECOMMENDED that header fields which are
        // needed for proxy processing (Via, Route, Record-Route, Proxy-Require,
        // Max-Forwards, and Proxy-Authorization, for example) appear towards
        // the top of the message to facilitate rapid parsing.
        // https://tools.ietf.org/html/rfc3261#section-7.3.1
        this.setHeader("route", this.options.routeSet);
        this.setHeader("via", "");
        this.setHeader("to", this.to.toString());
        this.setHeader("from", this.from.toString());
        this.setHeader("cseq", this.cseq + " " + this.method);
        this.setHeader("call-id", this.callId);
        this.setHeader("max-forwards", "70");
    }
    /** Get a copy of the default options. */
    OutgoingRequestMessage.getDefaultOptions = function () {
        return {
            callId: "",
            callIdPrefix: "",
            cseq: 1,
            toDisplayName: "",
            toTag: "",
            fromDisplayName: "",
            fromTag: "",
            forceRport: false,
            hackViaTcp: false,
            optionTags: ["outbound"],
            routeSet: [],
            userAgentString: "sip.js",
            viaHost: ""
        };
    };
    OutgoingRequestMessage.makeNameAddrHeader = function (uri, displayName, tag) {
        var parameters = {};
        if (tag) {
            parameters.tag = tag;
        }
        return new name_addr_header_1.NameAddrHeader(uri, displayName, parameters);
    };
    /**
     * Get the value of the given header name at the given position.
     * @param name - header name
     * @returns Returns the specified header, undefined if header doesn't exist.
     */
    OutgoingRequestMessage.prototype.getHeader = function (name) {
        var header = this.headers[utils_1.headerize(name)];
        if (header) {
            if (header[0]) {
                return header[0];
            }
        }
        else {
            var regexp = new RegExp("^\\s*" + name + "\\s*:", "i");
            for (var _i = 0, _a = this.extraHeaders; _i < _a.length; _i++) {
                var exHeader = _a[_i];
                if (regexp.test(exHeader)) {
                    return exHeader.substring(exHeader.indexOf(":") + 1).trim();
                }
            }
        }
        return;
    };
    /**
     * Get the header/s of the given name.
     * @param name - header name
     * @returns Array with all the headers of the specified name.
     */
    OutgoingRequestMessage.prototype.getHeaders = function (name) {
        var result = [];
        var headerArray = this.headers[utils_1.headerize(name)];
        if (headerArray) {
            for (var _i = 0, headerArray_1 = headerArray; _i < headerArray_1.length; _i++) {
                var headerPart = headerArray_1[_i];
                result.push(headerPart);
            }
        }
        else {
            var regexp = new RegExp("^\\s*" + name + "\\s*:", "i");
            for (var _a = 0, _b = this.extraHeaders; _a < _b.length; _a++) {
                var exHeader = _b[_a];
                if (regexp.test(exHeader)) {
                    result.push(exHeader.substring(exHeader.indexOf(":") + 1).trim());
                }
            }
        }
        return result;
    };
    /**
     * Verify the existence of the given header.
     * @param name - header name
     * @returns true if header with given name exists, false otherwise
     */
    OutgoingRequestMessage.prototype.hasHeader = function (name) {
        if (this.headers[utils_1.headerize(name)]) {
            return true;
        }
        else {
            var regexp = new RegExp("^\\s*" + name + "\\s*:", "i");
            for (var _i = 0, _a = this.extraHeaders; _i < _a.length; _i++) {
                var extraHeader = _a[_i];
                if (regexp.test(extraHeader)) {
                    return true;
                }
            }
        }
        return false;
    };
    /**
     * Replace the the given header by the given value.
     * @param name - header name
     * @param value - header value
     */
    OutgoingRequestMessage.prototype.setHeader = function (name, value) {
        this.headers[utils_1.headerize(name)] = (value instanceof Array) ? value : [value];
    };
    /**
     * The Via header field indicates the transport used for the transaction
     * and identifies the location where the response is to be sent.  A Via
     * header field value is added only after the transport that will be
     * used to reach the next hop has been selected (which may involve the
     * usage of the procedures in [4]).
     *
     * When the UAC creates a request, it MUST insert a Via into that
     * request.  The protocol name and protocol version in the header field
     * MUST be SIP and 2.0, respectively.  The Via header field value MUST
     * contain a branch parameter.  This parameter is used to identify the
     * transaction created by that request.  This parameter is used by both
     * the client and the server.
     * https://tools.ietf.org/html/rfc3261#section-8.1.1.7
     * @param branchParameter - The branch parameter.
     * @param scheme - The scheme.
     */
    OutgoingRequestMessage.prototype.setViaHeader = function (branch, scheme) {
        if (scheme === void 0) { scheme = "WSS"; }
        // FIXME: Hack
        if (this.options.hackViaTcp) {
            scheme = "TCP";
        }
        var via = "SIP/2.0/" + scheme;
        via += " " + this.options.viaHost + ";branch=" + branch;
        if (this.options.forceRport) {
            via += ";rport";
        }
        this.setHeader("via", via);
        this.branch = branch;
    };
    OutgoingRequestMessage.prototype.toString = function () {
        var msg = "";
        msg += this.method + " " + this.ruri.toRaw() + " SIP/2.0\r\n";
        for (var header in this.headers) {
            if (this.headers[header]) {
                for (var _i = 0, _a = this.headers[header]; _i < _a.length; _i++) {
                    var headerPart = _a[_i];
                    msg += header + ": " + headerPart + "\r\n";
                }
            }
        }
        for (var _b = 0, _c = this.extraHeaders; _b < _c.length; _b++) {
            var header = _c[_b];
            msg += header.trim() + "\r\n";
        }
        msg += "Supported: " + this.options.optionTags.join(", ") + "\r\n";
        msg += "User-Agent: " + this.options.userAgentString + "\r\n";
        if (this.body) {
            if (typeof this.body === "string") {
                msg += "Content-Length: " + utils_1.str_utf8_length(this.body) + "\r\n\r\n";
                msg += this.body;
            }
            else {
                if (this.body.body && this.body.contentType) {
                    msg += "Content-Type: " + this.body.contentType + "\r\n";
                    msg += "Content-Length: " + utils_1.str_utf8_length(this.body.body) + "\r\n\r\n";
                    msg += this.body.body;
                }
                else {
                    msg += "Content-Length: " + 0 + "\r\n\r\n";
                }
            }
        }
        else {
            msg += "Content-Length: " + 0 + "\r\n\r\n";
        }
        return msg;
    };
    return OutgoingRequestMessage;
}());
exports.OutgoingRequestMessage = OutgoingRequestMessage;


/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var md5_1 = tslib_1.__importDefault(__webpack_require__(20));
var utils_1 = __webpack_require__(16);
/**
 * Digest Authentication.
 * @internal
 */
var DigestAuthentication = /** @class */ (function () {
    /**
     * Constructor.
     * @param loggerFactory - LoggerFactory.
     * @param username - Username.
     * @param password - Password.
     */
    function DigestAuthentication(loggerFactory, username, password) {
        this.logger = loggerFactory.getLogger("sipjs.digestauthentication");
        this.username = username;
        this.password = password;
        this.nc = 0;
        this.ncHex = "00000000";
    }
    /**
     * Performs Digest authentication given a SIP request and the challenge
     * received in a response to that request.
     * @param request -
     * @param challenge -
     * @returns true if credentials were successfully generated, false otherwise.
     */
    DigestAuthentication.prototype.authenticate = function (request, challenge, body) {
        // Inspect and validate the challenge.
        this.algorithm = challenge.algorithm;
        this.realm = challenge.realm;
        this.nonce = challenge.nonce;
        this.opaque = challenge.opaque;
        this.stale = challenge.stale;
        if (this.algorithm) {
            if (this.algorithm !== "MD5") {
                this.logger.warn("challenge with Digest algorithm different than 'MD5', authentication aborted");
                return false;
            }
        }
        else {
            this.algorithm = "MD5";
        }
        if (!this.realm) {
            this.logger.warn("challenge without Digest realm, authentication aborted");
            return false;
        }
        if (!this.nonce) {
            this.logger.warn("challenge without Digest nonce, authentication aborted");
            return false;
        }
        // 'qop' can contain a list of values (Array). Let's choose just one.
        if (challenge.qop) {
            if (challenge.qop.indexOf("auth") > -1) {
                this.qop = "auth";
            }
            else if (challenge.qop.indexOf("auth-int") > -1) {
                this.qop = "auth-int";
            }
            else {
                // Otherwise 'qop' is present but does not contain 'auth' or 'auth-int', so abort here.
                this.logger.warn("challenge without Digest qop different than 'auth' or 'auth-int', authentication aborted");
                return false;
            }
        }
        else {
            this.qop = undefined;
        }
        // Fill other attributes.
        this.method = request.method;
        this.uri = request.ruri;
        this.cnonce = utils_1.createRandomToken(12);
        this.nc += 1;
        this.updateNcHex();
        // nc-value = 8LHEX. Max value = 'FFFFFFFF'.
        if (this.nc === 4294967296) {
            this.nc = 1;
            this.ncHex = "00000001";
        }
        // Calculate the Digest "response" value.
        this.calculateResponse(body);
        return true;
    };
    /**
     * Return the Proxy-Authorization or WWW-Authorization header value.
     */
    DigestAuthentication.prototype.toString = function () {
        var authParams = [];
        if (!this.response) {
            throw new Error("response field does not exist, cannot generate Authorization header");
        }
        authParams.push("algorithm=" + this.algorithm);
        authParams.push('username="' + this.username + '"');
        authParams.push('realm="' + this.realm + '"');
        authParams.push('nonce="' + this.nonce + '"');
        authParams.push('uri="' + this.uri + '"');
        authParams.push('response="' + this.response + '"');
        if (this.opaque) {
            authParams.push('opaque="' + this.opaque + '"');
        }
        if (this.qop) {
            authParams.push("qop=" + this.qop);
            authParams.push('cnonce="' + this.cnonce + '"');
            authParams.push("nc=" + this.ncHex);
        }
        return "Digest " + authParams.join(", ");
    };
    /**
     * Generate the 'nc' value as required by Digest in this.ncHex by reading this.nc.
     */
    DigestAuthentication.prototype.updateNcHex = function () {
        var hex = Number(this.nc).toString(16);
        this.ncHex = "00000000".substr(0, 8 - hex.length) + hex;
    };
    /**
     * Generate Digest 'response' value.
     */
    DigestAuthentication.prototype.calculateResponse = function (body) {
        var ha2;
        // HA1 = MD5(A1) = MD5(username:realm:password)
        var ha1 = md5_1.default(this.username + ":" + this.realm + ":" + this.password);
        if (this.qop === "auth") {
            // HA2 = MD5(A2) = MD5(method:digestURI)
            ha2 = md5_1.default(this.method + ":" + this.uri);
            // response = MD5(HA1:nonce:nonceCount:credentialsNonce:qop:HA2)
            this.response = md5_1.default(ha1 + ":" + this.nonce + ":" + this.ncHex + ":" + this.cnonce + ":auth:" + ha2);
        }
        else if (this.qop === "auth-int") {
            // HA2 = MD5(A2) = MD5(method:digestURI:MD5(entityBody))
            ha2 = md5_1.default(this.method + ":" + this.uri + ":" + md5_1.default(body ? body : ""));
            // response = MD5(HA1:nonce:nonceCount:credentialsNonce:qop:HA2)
            this.response = md5_1.default(ha1 + ":" + this.nonce + ":" + this.ncHex + ":" + this.cnonce + ":auth-int:" + ha2);
        }
        else if (this.qop === undefined) {
            // HA2 = MD5(A2) = MD5(method:digestURI)
            ha2 = md5_1.default(this.method + ":" + this.uri);
            // response = MD5(HA1:nonce:HA2)
            this.response = md5_1.default(ha1 + ":" + this.nonce + ":" + ha2);
        }
    };
    return DigestAuthentication;
}());
exports.DigestAuthentication = DigestAuthentication;


/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {

;(function (root, factory) {
	if (true) {
		// CommonJS
		module.exports = exports = factory(__webpack_require__(21));
	}
	else {}
}(this, function (CryptoJS) {

	(function (Math) {
	    // Shortcuts
	    var C = CryptoJS;
	    var C_lib = C.lib;
	    var WordArray = C_lib.WordArray;
	    var Hasher = C_lib.Hasher;
	    var C_algo = C.algo;

	    // Constants table
	    var T = [];

	    // Compute constants
	    (function () {
	        for (var i = 0; i < 64; i++) {
	            T[i] = (Math.abs(Math.sin(i + 1)) * 0x100000000) | 0;
	        }
	    }());

	    /**
	     * MD5 hash algorithm.
	     */
	    var MD5 = C_algo.MD5 = Hasher.extend({
	        _doReset: function () {
	            this._hash = new WordArray.init([
	                0x67452301, 0xefcdab89,
	                0x98badcfe, 0x10325476
	            ]);
	        },

	        _doProcessBlock: function (M, offset) {
	            // Swap endian
	            for (var i = 0; i < 16; i++) {
	                // Shortcuts
	                var offset_i = offset + i;
	                var M_offset_i = M[offset_i];

	                M[offset_i] = (
	                    (((M_offset_i << 8)  | (M_offset_i >>> 24)) & 0x00ff00ff) |
	                    (((M_offset_i << 24) | (M_offset_i >>> 8))  & 0xff00ff00)
	                );
	            }

	            // Shortcuts
	            var H = this._hash.words;

	            var M_offset_0  = M[offset + 0];
	            var M_offset_1  = M[offset + 1];
	            var M_offset_2  = M[offset + 2];
	            var M_offset_3  = M[offset + 3];
	            var M_offset_4  = M[offset + 4];
	            var M_offset_5  = M[offset + 5];
	            var M_offset_6  = M[offset + 6];
	            var M_offset_7  = M[offset + 7];
	            var M_offset_8  = M[offset + 8];
	            var M_offset_9  = M[offset + 9];
	            var M_offset_10 = M[offset + 10];
	            var M_offset_11 = M[offset + 11];
	            var M_offset_12 = M[offset + 12];
	            var M_offset_13 = M[offset + 13];
	            var M_offset_14 = M[offset + 14];
	            var M_offset_15 = M[offset + 15];

	            // Working varialbes
	            var a = H[0];
	            var b = H[1];
	            var c = H[2];
	            var d = H[3];

	            // Computation
	            a = FF(a, b, c, d, M_offset_0,  7,  T[0]);
	            d = FF(d, a, b, c, M_offset_1,  12, T[1]);
	            c = FF(c, d, a, b, M_offset_2,  17, T[2]);
	            b = FF(b, c, d, a, M_offset_3,  22, T[3]);
	            a = FF(a, b, c, d, M_offset_4,  7,  T[4]);
	            d = FF(d, a, b, c, M_offset_5,  12, T[5]);
	            c = FF(c, d, a, b, M_offset_6,  17, T[6]);
	            b = FF(b, c, d, a, M_offset_7,  22, T[7]);
	            a = FF(a, b, c, d, M_offset_8,  7,  T[8]);
	            d = FF(d, a, b, c, M_offset_9,  12, T[9]);
	            c = FF(c, d, a, b, M_offset_10, 17, T[10]);
	            b = FF(b, c, d, a, M_offset_11, 22, T[11]);
	            a = FF(a, b, c, d, M_offset_12, 7,  T[12]);
	            d = FF(d, a, b, c, M_offset_13, 12, T[13]);
	            c = FF(c, d, a, b, M_offset_14, 17, T[14]);
	            b = FF(b, c, d, a, M_offset_15, 22, T[15]);

	            a = GG(a, b, c, d, M_offset_1,  5,  T[16]);
	            d = GG(d, a, b, c, M_offset_6,  9,  T[17]);
	            c = GG(c, d, a, b, M_offset_11, 14, T[18]);
	            b = GG(b, c, d, a, M_offset_0,  20, T[19]);
	            a = GG(a, b, c, d, M_offset_5,  5,  T[20]);
	            d = GG(d, a, b, c, M_offset_10, 9,  T[21]);
	            c = GG(c, d, a, b, M_offset_15, 14, T[22]);
	            b = GG(b, c, d, a, M_offset_4,  20, T[23]);
	            a = GG(a, b, c, d, M_offset_9,  5,  T[24]);
	            d = GG(d, a, b, c, M_offset_14, 9,  T[25]);
	            c = GG(c, d, a, b, M_offset_3,  14, T[26]);
	            b = GG(b, c, d, a, M_offset_8,  20, T[27]);
	            a = GG(a, b, c, d, M_offset_13, 5,  T[28]);
	            d = GG(d, a, b, c, M_offset_2,  9,  T[29]);
	            c = GG(c, d, a, b, M_offset_7,  14, T[30]);
	            b = GG(b, c, d, a, M_offset_12, 20, T[31]);

	            a = HH(a, b, c, d, M_offset_5,  4,  T[32]);
	            d = HH(d, a, b, c, M_offset_8,  11, T[33]);
	            c = HH(c, d, a, b, M_offset_11, 16, T[34]);
	            b = HH(b, c, d, a, M_offset_14, 23, T[35]);
	            a = HH(a, b, c, d, M_offset_1,  4,  T[36]);
	            d = HH(d, a, b, c, M_offset_4,  11, T[37]);
	            c = HH(c, d, a, b, M_offset_7,  16, T[38]);
	            b = HH(b, c, d, a, M_offset_10, 23, T[39]);
	            a = HH(a, b, c, d, M_offset_13, 4,  T[40]);
	            d = HH(d, a, b, c, M_offset_0,  11, T[41]);
	            c = HH(c, d, a, b, M_offset_3,  16, T[42]);
	            b = HH(b, c, d, a, M_offset_6,  23, T[43]);
	            a = HH(a, b, c, d, M_offset_9,  4,  T[44]);
	            d = HH(d, a, b, c, M_offset_12, 11, T[45]);
	            c = HH(c, d, a, b, M_offset_15, 16, T[46]);
	            b = HH(b, c, d, a, M_offset_2,  23, T[47]);

	            a = II(a, b, c, d, M_offset_0,  6,  T[48]);
	            d = II(d, a, b, c, M_offset_7,  10, T[49]);
	            c = II(c, d, a, b, M_offset_14, 15, T[50]);
	            b = II(b, c, d, a, M_offset_5,  21, T[51]);
	            a = II(a, b, c, d, M_offset_12, 6,  T[52]);
	            d = II(d, a, b, c, M_offset_3,  10, T[53]);
	            c = II(c, d, a, b, M_offset_10, 15, T[54]);
	            b = II(b, c, d, a, M_offset_1,  21, T[55]);
	            a = II(a, b, c, d, M_offset_8,  6,  T[56]);
	            d = II(d, a, b, c, M_offset_15, 10, T[57]);
	            c = II(c, d, a, b, M_offset_6,  15, T[58]);
	            b = II(b, c, d, a, M_offset_13, 21, T[59]);
	            a = II(a, b, c, d, M_offset_4,  6,  T[60]);
	            d = II(d, a, b, c, M_offset_11, 10, T[61]);
	            c = II(c, d, a, b, M_offset_2,  15, T[62]);
	            b = II(b, c, d, a, M_offset_9,  21, T[63]);

	            // Intermediate hash value
	            H[0] = (H[0] + a) | 0;
	            H[1] = (H[1] + b) | 0;
	            H[2] = (H[2] + c) | 0;
	            H[3] = (H[3] + d) | 0;
	        },

	        _doFinalize: function () {
	            // Shortcuts
	            var data = this._data;
	            var dataWords = data.words;

	            var nBitsTotal = this._nDataBytes * 8;
	            var nBitsLeft = data.sigBytes * 8;

	            // Add padding
	            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);

	            var nBitsTotalH = Math.floor(nBitsTotal / 0x100000000);
	            var nBitsTotalL = nBitsTotal;
	            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = (
	                (((nBitsTotalH << 8)  | (nBitsTotalH >>> 24)) & 0x00ff00ff) |
	                (((nBitsTotalH << 24) | (nBitsTotalH >>> 8))  & 0xff00ff00)
	            );
	            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
	                (((nBitsTotalL << 8)  | (nBitsTotalL >>> 24)) & 0x00ff00ff) |
	                (((nBitsTotalL << 24) | (nBitsTotalL >>> 8))  & 0xff00ff00)
	            );

	            data.sigBytes = (dataWords.length + 1) * 4;

	            // Hash final blocks
	            this._process();

	            // Shortcuts
	            var hash = this._hash;
	            var H = hash.words;

	            // Swap endian
	            for (var i = 0; i < 4; i++) {
	                // Shortcut
	                var H_i = H[i];

	                H[i] = (((H_i << 8)  | (H_i >>> 24)) & 0x00ff00ff) |
	                       (((H_i << 24) | (H_i >>> 8))  & 0xff00ff00);
	            }

	            // Return final computed hash
	            return hash;
	        },

	        clone: function () {
	            var clone = Hasher.clone.call(this);
	            clone._hash = this._hash.clone();

	            return clone;
	        }
	    });

	    function FF(a, b, c, d, x, s, t) {
	        var n = a + ((b & c) | (~b & d)) + x + t;
	        return ((n << s) | (n >>> (32 - s))) + b;
	    }

	    function GG(a, b, c, d, x, s, t) {
	        var n = a + ((b & d) | (c & ~d)) + x + t;
	        return ((n << s) | (n >>> (32 - s))) + b;
	    }

	    function HH(a, b, c, d, x, s, t) {
	        var n = a + (b ^ c ^ d) + x + t;
	        return ((n << s) | (n >>> (32 - s))) + b;
	    }

	    function II(a, b, c, d, x, s, t) {
	        var n = a + (c ^ (b | ~d)) + x + t;
	        return ((n << s) | (n >>> (32 - s))) + b;
	    }

	    /**
	     * Shortcut function to the hasher's object interface.
	     *
	     * @param {WordArray|string} message The message to hash.
	     *
	     * @return {WordArray} The hash.
	     *
	     * @static
	     *
	     * @example
	     *
	     *     var hash = CryptoJS.MD5('message');
	     *     var hash = CryptoJS.MD5(wordArray);
	     */
	    C.MD5 = Hasher._createHelper(MD5);

	    /**
	     * Shortcut function to the HMAC's object interface.
	     *
	     * @param {WordArray|string} message The message to hash.
	     * @param {WordArray|string} key The secret key.
	     *
	     * @return {WordArray} The HMAC.
	     *
	     * @static
	     *
	     * @example
	     *
	     *     var hmac = CryptoJS.HmacMD5(message, key);
	     */
	    C.HmacMD5 = Hasher._createHmacHelper(MD5);
	}(Math));


	return CryptoJS.MD5;

}));

/***/ }),
/* 21 */
/***/ (function(module, exports, __webpack_require__) {

;(function (root, factory) {
	if (true) {
		// CommonJS
		module.exports = exports = factory();
	}
	else {}
}(this, function () {

	/**
	 * CryptoJS core components.
	 */
	var CryptoJS = CryptoJS || (function (Math, undefined) {
	    /*
	     * Local polyfil of Object.create
	     */
	    var create = Object.create || (function () {
	        function F() {};

	        return function (obj) {
	            var subtype;

	            F.prototype = obj;

	            subtype = new F();

	            F.prototype = null;

	            return subtype;
	        };
	    }())

	    /**
	     * CryptoJS namespace.
	     */
	    var C = {};

	    /**
	     * Library namespace.
	     */
	    var C_lib = C.lib = {};

	    /**
	     * Base object for prototypal inheritance.
	     */
	    var Base = C_lib.Base = (function () {


	        return {
	            /**
	             * Creates a new object that inherits from this object.
	             *
	             * @param {Object} overrides Properties to copy into the new object.
	             *
	             * @return {Object} The new object.
	             *
	             * @static
	             *
	             * @example
	             *
	             *     var MyType = CryptoJS.lib.Base.extend({
	             *         field: 'value',
	             *
	             *         method: function () {
	             *         }
	             *     });
	             */
	            extend: function (overrides) {
	                // Spawn
	                var subtype = create(this);

	                // Augment
	                if (overrides) {
	                    subtype.mixIn(overrides);
	                }

	                // Create default initializer
	                if (!subtype.hasOwnProperty('init') || this.init === subtype.init) {
	                    subtype.init = function () {
	                        subtype.$super.init.apply(this, arguments);
	                    };
	                }

	                // Initializer's prototype is the subtype object
	                subtype.init.prototype = subtype;

	                // Reference supertype
	                subtype.$super = this;

	                return subtype;
	            },

	            /**
	             * Extends this object and runs the init method.
	             * Arguments to create() will be passed to init().
	             *
	             * @return {Object} The new object.
	             *
	             * @static
	             *
	             * @example
	             *
	             *     var instance = MyType.create();
	             */
	            create: function () {
	                var instance = this.extend();
	                instance.init.apply(instance, arguments);

	                return instance;
	            },

	            /**
	             * Initializes a newly created object.
	             * Override this method to add some logic when your objects are created.
	             *
	             * @example
	             *
	             *     var MyType = CryptoJS.lib.Base.extend({
	             *         init: function () {
	             *             // ...
	             *         }
	             *     });
	             */
	            init: function () {
	            },

	            /**
	             * Copies properties into this object.
	             *
	             * @param {Object} properties The properties to mix in.
	             *
	             * @example
	             *
	             *     MyType.mixIn({
	             *         field: 'value'
	             *     });
	             */
	            mixIn: function (properties) {
	                for (var propertyName in properties) {
	                    if (properties.hasOwnProperty(propertyName)) {
	                        this[propertyName] = properties[propertyName];
	                    }
	                }

	                // IE won't copy toString using the loop above
	                if (properties.hasOwnProperty('toString')) {
	                    this.toString = properties.toString;
	                }
	            },

	            /**
	             * Creates a copy of this object.
	             *
	             * @return {Object} The clone.
	             *
	             * @example
	             *
	             *     var clone = instance.clone();
	             */
	            clone: function () {
	                return this.init.prototype.extend(this);
	            }
	        };
	    }());

	    /**
	     * An array of 32-bit words.
	     *
	     * @property {Array} words The array of 32-bit words.
	     * @property {number} sigBytes The number of significant bytes in this word array.
	     */
	    var WordArray = C_lib.WordArray = Base.extend({
	        /**
	         * Initializes a newly created word array.
	         *
	         * @param {Array} words (Optional) An array of 32-bit words.
	         * @param {number} sigBytes (Optional) The number of significant bytes in the words.
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.lib.WordArray.create();
	         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]);
	         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6);
	         */
	        init: function (words, sigBytes) {
	            words = this.words = words || [];

	            if (sigBytes != undefined) {
	                this.sigBytes = sigBytes;
	            } else {
	                this.sigBytes = words.length * 4;
	            }
	        },

	        /**
	         * Converts this word array to a string.
	         *
	         * @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex
	         *
	         * @return {string} The stringified word array.
	         *
	         * @example
	         *
	         *     var string = wordArray + '';
	         *     var string = wordArray.toString();
	         *     var string = wordArray.toString(CryptoJS.enc.Utf8);
	         */
	        toString: function (encoder) {
	            return (encoder || Hex).stringify(this);
	        },

	        /**
	         * Concatenates a word array to this word array.
	         *
	         * @param {WordArray} wordArray The word array to append.
	         *
	         * @return {WordArray} This word array.
	         *
	         * @example
	         *
	         *     wordArray1.concat(wordArray2);
	         */
	        concat: function (wordArray) {
	            // Shortcuts
	            var thisWords = this.words;
	            var thatWords = wordArray.words;
	            var thisSigBytes = this.sigBytes;
	            var thatSigBytes = wordArray.sigBytes;

	            // Clamp excess bits
	            this.clamp();

	            // Concat
	            if (thisSigBytes % 4) {
	                // Copy one byte at a time
	                for (var i = 0; i < thatSigBytes; i++) {
	                    var thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
	                    thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8);
	                }
	            } else {
	                // Copy one word at a time
	                for (var i = 0; i < thatSigBytes; i += 4) {
	                    thisWords[(thisSigBytes + i) >>> 2] = thatWords[i >>> 2];
	                }
	            }
	            this.sigBytes += thatSigBytes;

	            // Chainable
	            return this;
	        },

	        /**
	         * Removes insignificant bits.
	         *
	         * @example
	         *
	         *     wordArray.clamp();
	         */
	        clamp: function () {
	            // Shortcuts
	            var words = this.words;
	            var sigBytes = this.sigBytes;

	            // Clamp
	            words[sigBytes >>> 2] &= 0xffffffff << (32 - (sigBytes % 4) * 8);
	            words.length = Math.ceil(sigBytes / 4);
	        },

	        /**
	         * Creates a copy of this word array.
	         *
	         * @return {WordArray} The clone.
	         *
	         * @example
	         *
	         *     var clone = wordArray.clone();
	         */
	        clone: function () {
	            var clone = Base.clone.call(this);
	            clone.words = this.words.slice(0);

	            return clone;
	        },

	        /**
	         * Creates a word array filled with random bytes.
	         *
	         * @param {number} nBytes The number of random bytes to generate.
	         *
	         * @return {WordArray} The random word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.lib.WordArray.random(16);
	         */
	        random: function (nBytes) {
	            var words = [];

	            var r = (function (m_w) {
	                var m_w = m_w;
	                var m_z = 0x3ade68b1;
	                var mask = 0xffffffff;

	                return function () {
	                    m_z = (0x9069 * (m_z & 0xFFFF) + (m_z >> 0x10)) & mask;
	                    m_w = (0x4650 * (m_w & 0xFFFF) + (m_w >> 0x10)) & mask;
	                    var result = ((m_z << 0x10) + m_w) & mask;
	                    result /= 0x100000000;
	                    result += 0.5;
	                    return result * (Math.random() > .5 ? 1 : -1);
	                }
	            });

	            for (var i = 0, rcache; i < nBytes; i += 4) {
	                var _r = r((rcache || Math.random()) * 0x100000000);

	                rcache = _r() * 0x3ade67b7;
	                words.push((_r() * 0x100000000) | 0);
	            }

	            return new WordArray.init(words, nBytes);
	        }
	    });

	    /**
	     * Encoder namespace.
	     */
	    var C_enc = C.enc = {};

	    /**
	     * Hex encoding strategy.
	     */
	    var Hex = C_enc.Hex = {
	        /**
	         * Converts a word array to a hex string.
	         *
	         * @param {WordArray} wordArray The word array.
	         *
	         * @return {string} The hex string.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var hexString = CryptoJS.enc.Hex.stringify(wordArray);
	         */
	        stringify: function (wordArray) {
	            // Shortcuts
	            var words = wordArray.words;
	            var sigBytes = wordArray.sigBytes;

	            // Convert
	            var hexChars = [];
	            for (var i = 0; i < sigBytes; i++) {
	                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
	                hexChars.push((bite >>> 4).toString(16));
	                hexChars.push((bite & 0x0f).toString(16));
	            }

	            return hexChars.join('');
	        },

	        /**
	         * Converts a hex string to a word array.
	         *
	         * @param {string} hexStr The hex string.
	         *
	         * @return {WordArray} The word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.enc.Hex.parse(hexString);
	         */
	        parse: function (hexStr) {
	            // Shortcut
	            var hexStrLength = hexStr.length;

	            // Convert
	            var words = [];
	            for (var i = 0; i < hexStrLength; i += 2) {
	                words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << (24 - (i % 8) * 4);
	            }

	            return new WordArray.init(words, hexStrLength / 2);
	        }
	    };

	    /**
	     * Latin1 encoding strategy.
	     */
	    var Latin1 = C_enc.Latin1 = {
	        /**
	         * Converts a word array to a Latin1 string.
	         *
	         * @param {WordArray} wordArray The word array.
	         *
	         * @return {string} The Latin1 string.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var latin1String = CryptoJS.enc.Latin1.stringify(wordArray);
	         */
	        stringify: function (wordArray) {
	            // Shortcuts
	            var words = wordArray.words;
	            var sigBytes = wordArray.sigBytes;

	            // Convert
	            var latin1Chars = [];
	            for (var i = 0; i < sigBytes; i++) {
	                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
	                latin1Chars.push(String.fromCharCode(bite));
	            }

	            return latin1Chars.join('');
	        },

	        /**
	         * Converts a Latin1 string to a word array.
	         *
	         * @param {string} latin1Str The Latin1 string.
	         *
	         * @return {WordArray} The word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.enc.Latin1.parse(latin1String);
	         */
	        parse: function (latin1Str) {
	            // Shortcut
	            var latin1StrLength = latin1Str.length;

	            // Convert
	            var words = [];
	            for (var i = 0; i < latin1StrLength; i++) {
	                words[i >>> 2] |= (latin1Str.charCodeAt(i) & 0xff) << (24 - (i % 4) * 8);
	            }

	            return new WordArray.init(words, latin1StrLength);
	        }
	    };

	    /**
	     * UTF-8 encoding strategy.
	     */
	    var Utf8 = C_enc.Utf8 = {
	        /**
	         * Converts a word array to a UTF-8 string.
	         *
	         * @param {WordArray} wordArray The word array.
	         *
	         * @return {string} The UTF-8 string.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var utf8String = CryptoJS.enc.Utf8.stringify(wordArray);
	         */
	        stringify: function (wordArray) {
	            try {
	                return decodeURIComponent(escape(Latin1.stringify(wordArray)));
	            } catch (e) {
	                throw new Error('Malformed UTF-8 data');
	            }
	        },

	        /**
	         * Converts a UTF-8 string to a word array.
	         *
	         * @param {string} utf8Str The UTF-8 string.
	         *
	         * @return {WordArray} The word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.enc.Utf8.parse(utf8String);
	         */
	        parse: function (utf8Str) {
	            return Latin1.parse(unescape(encodeURIComponent(utf8Str)));
	        }
	    };

	    /**
	     * Abstract buffered block algorithm template.
	     *
	     * The property blockSize must be implemented in a concrete subtype.
	     *
	     * @property {number} _minBufferSize The number of blocks that should be kept unprocessed in the buffer. Default: 0
	     */
	    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm = Base.extend({
	        /**
	         * Resets this block algorithm's data buffer to its initial state.
	         *
	         * @example
	         *
	         *     bufferedBlockAlgorithm.reset();
	         */
	        reset: function () {
	            // Initial values
	            this._data = new WordArray.init();
	            this._nDataBytes = 0;
	        },

	        /**
	         * Adds new data to this block algorithm's buffer.
	         *
	         * @param {WordArray|string} data The data to append. Strings are converted to a WordArray using UTF-8.
	         *
	         * @example
	         *
	         *     bufferedBlockAlgorithm._append('data');
	         *     bufferedBlockAlgorithm._append(wordArray);
	         */
	        _append: function (data) {
	            // Convert string to WordArray, else assume WordArray already
	            if (typeof data == 'string') {
	                data = Utf8.parse(data);
	            }

	            // Append
	            this._data.concat(data);
	            this._nDataBytes += data.sigBytes;
	        },

	        /**
	         * Processes available data blocks.
	         *
	         * This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.
	         *
	         * @param {boolean} doFlush Whether all blocks and partial blocks should be processed.
	         *
	         * @return {WordArray} The processed data.
	         *
	         * @example
	         *
	         *     var processedData = bufferedBlockAlgorithm._process();
	         *     var processedData = bufferedBlockAlgorithm._process(!!'flush');
	         */
	        _process: function (doFlush) {
	            // Shortcuts
	            var data = this._data;
	            var dataWords = data.words;
	            var dataSigBytes = data.sigBytes;
	            var blockSize = this.blockSize;
	            var blockSizeBytes = blockSize * 4;

	            // Count blocks ready
	            var nBlocksReady = dataSigBytes / blockSizeBytes;
	            if (doFlush) {
	                // Round up to include partial blocks
	                nBlocksReady = Math.ceil(nBlocksReady);
	            } else {
	                // Round down to include only full blocks,
	                // less the number of blocks that must remain in the buffer
	                nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);
	            }

	            // Count words ready
	            var nWordsReady = nBlocksReady * blockSize;

	            // Count bytes ready
	            var nBytesReady = Math.min(nWordsReady * 4, dataSigBytes);

	            // Process blocks
	            if (nWordsReady) {
	                for (var offset = 0; offset < nWordsReady; offset += blockSize) {
	                    // Perform concrete-algorithm logic
	                    this._doProcessBlock(dataWords, offset);
	                }

	                // Remove processed words
	                var processedWords = dataWords.splice(0, nWordsReady);
	                data.sigBytes -= nBytesReady;
	            }

	            // Return processed words
	            return new WordArray.init(processedWords, nBytesReady);
	        },

	        /**
	         * Creates a copy of this object.
	         *
	         * @return {Object} The clone.
	         *
	         * @example
	         *
	         *     var clone = bufferedBlockAlgorithm.clone();
	         */
	        clone: function () {
	            var clone = Base.clone.call(this);
	            clone._data = this._data.clone();

	            return clone;
	        },

	        _minBufferSize: 0
	    });

	    /**
	     * Abstract hasher template.
	     *
	     * @property {number} blockSize The number of 32-bit words this hasher operates on. Default: 16 (512 bits)
	     */
	    var Hasher = C_lib.Hasher = BufferedBlockAlgorithm.extend({
	        /**
	         * Configuration options.
	         */
	        cfg: Base.extend(),

	        /**
	         * Initializes a newly created hasher.
	         *
	         * @param {Object} cfg (Optional) The configuration options to use for this hash computation.
	         *
	         * @example
	         *
	         *     var hasher = CryptoJS.algo.SHA256.create();
	         */
	        init: function (cfg) {
	            // Apply config defaults
	            this.cfg = this.cfg.extend(cfg);

	            // Set initial values
	            this.reset();
	        },

	        /**
	         * Resets this hasher to its initial state.
	         *
	         * @example
	         *
	         *     hasher.reset();
	         */
	        reset: function () {
	            // Reset data buffer
	            BufferedBlockAlgorithm.reset.call(this);

	            // Perform concrete-hasher logic
	            this._doReset();
	        },

	        /**
	         * Updates this hasher with a message.
	         *
	         * @param {WordArray|string} messageUpdate The message to append.
	         *
	         * @return {Hasher} This hasher.
	         *
	         * @example
	         *
	         *     hasher.update('message');
	         *     hasher.update(wordArray);
	         */
	        update: function (messageUpdate) {
	            // Append
	            this._append(messageUpdate);

	            // Update the hash
	            this._process();

	            // Chainable
	            return this;
	        },

	        /**
	         * Finalizes the hash computation.
	         * Note that the finalize operation is effectively a destructive, read-once operation.
	         *
	         * @param {WordArray|string} messageUpdate (Optional) A final message update.
	         *
	         * @return {WordArray} The hash.
	         *
	         * @example
	         *
	         *     var hash = hasher.finalize();
	         *     var hash = hasher.finalize('message');
	         *     var hash = hasher.finalize(wordArray);
	         */
	        finalize: function (messageUpdate) {
	            // Final message update
	            if (messageUpdate) {
	                this._append(messageUpdate);
	            }

	            // Perform concrete-hasher logic
	            var hash = this._doFinalize();

	            return hash;
	        },

	        blockSize: 512/32,

	        /**
	         * Creates a shortcut function to a hasher's object interface.
	         *
	         * @param {Hasher} hasher The hasher to create a helper for.
	         *
	         * @return {Function} The shortcut function.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);
	         */
	        _createHelper: function (hasher) {
	            return function (message, cfg) {
	                return new hasher.init(cfg).finalize(message);
	            };
	        },

	        /**
	         * Creates a shortcut function to the HMAC's object interface.
	         *
	         * @param {Hasher} hasher The hasher to use in this HMAC helper.
	         *
	         * @return {Function} The shortcut function.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var HmacSHA256 = CryptoJS.lib.Hasher._createHmacHelper(CryptoJS.algo.SHA256);
	         */
	        _createHmacHelper: function (hasher) {
	            return function (message, key) {
	                return new C_algo.HMAC.init(hasher, key).finalize(message);
	            };
	        }
	    });

	    /**
	     * Algorithm namespace.
	     */
	    var C_algo = C.algo = {};

	    return C;
	}(Math));


	return CryptoJS;

}));

/***/ }),
/* 22 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var utils_1 = __webpack_require__(16);
/**
 * When a UAS wishes to construct a response to a request, it follows
 * the general procedures detailed in the following subsections.
 * Additional behaviors specific to the response code in question, which
 * are not detailed in this section, may also be required.
 * https://tools.ietf.org/html/rfc3261#section-8.2.6
 * @internal
 */
function constructOutgoingResponse(message, options) {
    var CRLF = "\r\n";
    if (options.statusCode < 100 || options.statusCode > 699) {
        throw new TypeError("Invalid statusCode: " + options.statusCode);
    }
    var reasonPhrase = options.reasonPhrase ? options.reasonPhrase : utils_1.getReasonPhrase(options.statusCode);
    // SIP responses are distinguished from requests by having a Status-Line
    // as their start-line.  A Status-Line consists of the protocol version
    // followed by a numeric Status-Code and its associated textual phrase,
    // with each element separated by a single SP character.
    // https://tools.ietf.org/html/rfc3261#section-7.2
    var response = "SIP/2.0 " + options.statusCode + " " + reasonPhrase + CRLF;
    // One largely non-method-specific guideline for the generation of
    // responses is that UASs SHOULD NOT issue a provisional response for a
    // non-INVITE request.  Rather, UASs SHOULD generate a final response to
    // a non-INVITE request as soon as possible.
    // https://tools.ietf.org/html/rfc3261#section-8.2.6.1
    if (options.statusCode >= 100 && options.statusCode < 200) {
        // TODO
    }
    // When a 100 (Trying) response is generated, any Timestamp header field
    // present in the request MUST be copied into this 100 (Trying)
    // response.  If there is a delay in generating the response, the UAS
    // SHOULD add a delay value into the Timestamp value in the response.
    // This value MUST contain the difference between the time of sending of
    // the response and receipt of the request, measured in seconds.
    // https://tools.ietf.org/html/rfc3261#section-8.2.6.1
    if (options.statusCode === 100) {
        // TODO
    }
    // The From field of the response MUST equal the From header field of
    // the request.  The Call-ID header field of the response MUST equal the
    // Call-ID header field of the request.  The CSeq header field of the
    // response MUST equal the CSeq field of the request.  The Via header
    // field values in the response MUST equal the Via header field values
    // in the request and MUST maintain the same ordering.
    // https://tools.ietf.org/html/rfc3261#section-8.2.6.2
    var fromHeader = "From: " + message.getHeader("From") + CRLF;
    var callIdHeader = "Call-ID: " + message.callId + CRLF;
    var cSeqHeader = "CSeq: " + message.cseq + " " + message.method + CRLF;
    var viaHeaders = message.getHeaders("via").reduce(function (previous, current) {
        return previous + "Via: " + current + CRLF;
    }, "");
    // If a request contained a To tag in the request, the To header field
    // in the response MUST equal that of the request.  However, if the To
    // header field in the request did not contain a tag, the URI in the To
    // header field in the response MUST equal the URI in the To header
    // field; additionally, the UAS MUST add a tag to the To header field in
    // the response (with the exception of the 100 (Trying) response, in
    // which a tag MAY be present).  This serves to identify the UAS that is
    // responding, possibly resulting in a component of a dialog ID.  The
    // same tag MUST be used for all responses to that request, both final
    // and provisional (again excepting the 100 (Trying)).
    // https://tools.ietf.org/html/rfc3261#section-8.2.6.2
    var toHeader = "To: " + message.getHeader("to");
    if (options.statusCode > 100 && !message.parseHeader("to").hasParam("tag")) {
        var toTag = options.toTag;
        if (!toTag) {
            // Stateless UAS Behavior...
            // o  To header tags MUST be generated for responses in a stateless
            //    manner - in a manner that will generate the same tag for the
            //    same request consistently.  For information on tag construction
            //    see Section 19.3.
            // https://tools.ietf.org/html/rfc3261#section-8.2.7
            toTag = utils_1.newTag(); // FIXME: newTag() currently generates random tags
        }
        toHeader += ";tag=" + toTag;
    }
    toHeader += CRLF;
    // FIXME: TODO: needs review... moved to InviteUserAgentServer (as it is specific to that)
    // let recordRouteHeaders = "";
    // if (request.method === C.INVITE && statusCode > 100 && statusCode <= 200) {
    //   recordRouteHeaders = request.getHeaders("record-route").reduce((previous, current) => {
    //     return previous + "Record-Route: " + current + CRLF;
    //   }, "");
    // }
    // FIXME: TODO: needs review...
    var supportedHeader = "";
    if (options.supported) {
        supportedHeader = "Supported: " + options.supported.join(", ") + CRLF;
    }
    // FIXME: TODO: needs review...
    var userAgentHeader = "";
    if (options.userAgent) {
        userAgentHeader = "User-Agent: " + options.userAgent + CRLF;
    }
    var extensionHeaders = "";
    if (options.extraHeaders) {
        extensionHeaders = options.extraHeaders.reduce(function (previous, current) {
            return previous + current.trim() + CRLF;
        }, "");
    }
    // The relative order of header fields with different field names is not
    // significant.  However, it is RECOMMENDED that header fields which are
    // needed for proxy processing (Via, Route, Record-Route, Proxy-Require,
    // Max-Forwards, and Proxy-Authorization, for example) appear towards
    // the top of the message to facilitate rapid parsing.
    // https://tools.ietf.org/html/rfc3261#section-7.3.1
    // response += recordRouteHeaders;
    response += viaHeaders;
    response += fromHeader;
    response += toHeader;
    response += cSeqHeader;
    response += callIdHeader;
    response += supportedHeader;
    response += userAgentHeader;
    response += extensionHeaders;
    if (options.body) {
        response += "Content-Type: " + options.body.contentType + CRLF;
        response += "Content-Length: " + utils_1.str_utf8_length(options.body.content) + CRLF + CRLF;
        response += options.body.content;
    }
    else {
        response += "Content-Length: " + 0 + CRLF + CRLF;
    }
    return { message: response };
}
exports.constructOutgoingResponse = constructOutgoingResponse;


/***/ }),
/* 23 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var session_1 = __webpack_require__(24);
var timers_1 = __webpack_require__(26);
var transactions_1 = __webpack_require__(27);
var bye_user_agent_client_1 = __webpack_require__(41);
var bye_user_agent_server_1 = __webpack_require__(43);
var info_user_agent_client_1 = __webpack_require__(45);
var info_user_agent_server_1 = __webpack_require__(46);
var notify_user_agent_client_1 = __webpack_require__(47);
var notify_user_agent_server_1 = __webpack_require__(48);
var prack_user_agent_client_1 = __webpack_require__(49);
var prack_user_agent_server_1 = __webpack_require__(50);
var re_invite_user_agent_client_1 = __webpack_require__(51);
var re_invite_user_agent_server_1 = __webpack_require__(52);
var refer_user_agent_client_1 = __webpack_require__(53);
var refer_user_agent_server_1 = __webpack_require__(54);
var dialog_1 = __webpack_require__(4);
/**
 * Session Dialog.
 * @public
 */
var SessionDialog = /** @class */ (function (_super) {
    tslib_1.__extends(SessionDialog, _super);
    function SessionDialog(initialTransaction, core, state, delegate) {
        var _this = _super.call(this, core, state) || this;
        _this.initialTransaction = initialTransaction;
        /** The state of the offer/answer exchange. */
        _this._signalingState = session_1.SignalingState.Initial;
        /** True if waiting for an ACK to the initial transaction 2xx (UAS only). */
        _this.ackWait = false;
        _this.delegate = delegate;
        if (initialTransaction instanceof transactions_1.InviteServerTransaction) {
            // If we're created by an invite server transaction, we're
            // going to be waiting for an ACK if are to be confirmed.
            _this.ackWait = true;
        }
        // If we're confirmed upon creation start the retransmitting whatever
        // the 2xx final response was that confirmed us into existence.
        if (!_this.early) {
            _this.start2xxRetransmissionTimer();
        }
        _this.signalingStateTransition(initialTransaction.request);
        _this.logger = core.loggerFactory.getLogger("sip.invite-dialog");
        _this.logger.log("INVITE dialog " + _this.id + " constructed");
        return _this;
    }
    SessionDialog.prototype.dispose = function () {
        _super.prototype.dispose.call(this);
        this._signalingState = session_1.SignalingState.Closed;
        this._offer = undefined;
        this._answer = undefined;
        if (this.invite2xxTimer) {
            clearTimeout(this.invite2xxTimer);
            this.invite2xxTimer = undefined;
        }
        // The UAS MUST still respond to any pending requests received for that
        // dialog.  It is RECOMMENDED that a 487 (Request Terminated) response
        // be generated to those pending requests.
        // https://tools.ietf.org/html/rfc3261#section-15.1.2
        // TODO:
        // this.userAgentServers.forEach((uas) => uas.reply(487));
        this.logger.log("INVITE dialog " + this.id + " destroyed");
    };
    Object.defineProperty(SessionDialog.prototype, "sessionState", {
        // FIXME: Need real state machine
        get: function () {
            if (this.early) {
                return session_1.SessionState.Early;
            }
            else if (this.ackWait) {
                return session_1.SessionState.AckWait;
            }
            else if (this._signalingState === session_1.SignalingState.Closed) {
                return session_1.SessionState.Terminated;
            }
            else {
                return session_1.SessionState.Confirmed;
            }
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SessionDialog.prototype, "signalingState", {
        /** The state of the offer/answer exchange. */
        get: function () {
            return this._signalingState;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SessionDialog.prototype, "offer", {
        /** The current offer. Undefined unless signaling state HaveLocalOffer, HaveRemoteOffer, of Stable. */
        get: function () {
            return this._offer;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SessionDialog.prototype, "answer", {
        /** The current answer. Undefined unless signaling state Stable. */
        get: function () {
            return this._answer;
        },
        enumerable: true,
        configurable: true
    });
    /** Confirm the dialog. Only matters if dialog is currently early. */
    SessionDialog.prototype.confirm = function () {
        // When we're confirmed start the retransmitting whatever
        // the 2xx final response that may have confirmed us.
        if (this.early) {
            this.start2xxRetransmissionTimer();
        }
        _super.prototype.confirm.call(this);
    };
    /** Re-confirm the dialog. Only matters if handling re-INVITE request. */
    SessionDialog.prototype.reConfirm = function () {
        // When we're confirmed start the retransmitting whatever
        // the 2xx final response that may have confirmed us.
        if (this.reinviteUserAgentServer) {
            this.startReInvite2xxRetransmissionTimer();
        }
    };
    /**
     * The UAC core MUST generate an ACK request for each 2xx received from
     * the transaction layer.  The header fields of the ACK are constructed
     * in the same way as for any request sent within a dialog (see Section
     * 12) with the exception of the CSeq and the header fields related to
     * authentication.  The sequence number of the CSeq header field MUST be
     * the same as the INVITE being acknowledged, but the CSeq method MUST
     * be ACK.  The ACK MUST contain the same credentials as the INVITE.  If
     * the 2xx contains an offer (based on the rules above), the ACK MUST
     * carry an answer in its body.  If the offer in the 2xx response is not
     * acceptable, the UAC core MUST generate a valid answer in the ACK and
     * then send a BYE immediately.
     * https://tools.ietf.org/html/rfc3261#section-13.2.2.4
     * @param options - ACK options bucket.
     */
    SessionDialog.prototype.ack = function (options) {
        if (options === void 0) { options = {}; }
        this.logger.log("INVITE dialog " + this.id + " sending ACK request");
        var transaction;
        if (this.reinviteUserAgentClient) {
            // We're sending ACK for a re-INVITE
            if (!(this.reinviteUserAgentClient.transaction instanceof transactions_1.InviteClientTransaction)) {
                throw new Error("Transaction not instance of InviteClientTransaction.");
            }
            transaction = this.reinviteUserAgentClient.transaction;
            this.reinviteUserAgentClient = undefined;
        }
        else {
            // We're sending ACK for the initial INVITE
            if (!(this.initialTransaction instanceof transactions_1.InviteClientTransaction)) {
                throw new Error("Initial transaction not instance of InviteClientTransaction.");
            }
            transaction = this.initialTransaction;
        }
        options.cseq = transaction.request.cseq; // ACK cseq is INVITE cseq
        var message = this.createOutgoingRequestMessage(messages_1.C.ACK, options);
        transaction.ackResponse(message); // See InviteClientTransaction for details.
        this.signalingStateTransition(message);
        return { message: message };
    };
    /**
     * Terminating a Session
     *
     * This section describes the procedures for terminating a session
     * established by SIP.  The state of the session and the state of the
     * dialog are very closely related.  When a session is initiated with an
     * INVITE, each 1xx or 2xx response from a distinct UAS creates a
     * dialog, and if that response completes the offer/answer exchange, it
     * also creates a session.  As a result, each session is "associated"
     * with a single dialog - the one which resulted in its creation.  If an
     * initial INVITE generates a non-2xx final response, that terminates
     * all sessions (if any) and all dialogs (if any) that were created
     * through responses to the request.  By virtue of completing the
     * transaction, a non-2xx final response also prevents further sessions
     * from being created as a result of the INVITE.  The BYE request is
     * used to terminate a specific session or attempted session.  In this
     * case, the specific session is the one with the peer UA on the other
     * side of the dialog.  When a BYE is received on a dialog, any session
     * associated with that dialog SHOULD terminate.  A UA MUST NOT send a
     * BYE outside of a dialog.  The caller's UA MAY send a BYE for either
     * confirmed or early dialogs, and the callee's UA MAY send a BYE on
     * confirmed dialogs, but MUST NOT send a BYE on early dialogs.
     *
     * However, the callee's UA MUST NOT send a BYE on a confirmed dialog
     * until it has received an ACK for its 2xx response or until the server
     * transaction times out.  If no SIP extensions have defined other
     * application layer states associated with the dialog, the BYE also
     * terminates the dialog.
     *
     * https://tools.ietf.org/html/rfc3261#section-15
     * FIXME: Make these proper Exceptions...
     * @param options - BYE options bucket.
     * @returns
     * Throws `Error` if callee's UA attempts a BYE on an early dialog.
     * Throws `Error` if callee's UA attempts a BYE on a confirmed dialog
     *                while it's waiting on the ACK for its 2xx response.
     */
    SessionDialog.prototype.bye = function (delegate, options) {
        this.logger.log("INVITE dialog " + this.id + " sending BYE request");
        // The caller's UA MAY send a BYE for either
        // confirmed or early dialogs, and the callee's UA MAY send a BYE on
        // confirmed dialogs, but MUST NOT send a BYE on early dialogs.
        //
        // However, the callee's UA MUST NOT send a BYE on a confirmed dialog
        // until it has received an ACK for its 2xx response or until the server
        // transaction times out.
        // https://tools.ietf.org/html/rfc3261#section-15
        if (this.initialTransaction instanceof transactions_1.InviteServerTransaction) {
            if (this.early) {
                // FIXME: TODO: This should throw a proper exception.
                throw new Error("UAS MUST NOT send a BYE on early dialogs.");
            }
            if (this.ackWait && this.initialTransaction.state !== transactions_1.TransactionState.Terminated) {
                // FIXME: TODO: This should throw a proper exception.
                throw new Error("UAS MUST NOT send a BYE on a confirmed dialog " +
                    "until it has received an ACK for its 2xx response " +
                    "or until the server transaction times out.");
            }
        }
        // A BYE request is constructed as would any other request within a
        // dialog, as described in Section 12.
        //
        // Once the BYE is constructed, the UAC core creates a new non-INVITE
        // client transaction, and passes it the BYE request.  The UAC MUST
        // consider the session terminated (and therefore stop sending or
        // listening for media) as soon as the BYE request is passed to the
        // client transaction.  If the response for the BYE is a 481
        // (Call/Transaction Does Not Exist) or a 408 (Request Timeout) or no
        // response at all is received for the BYE (that is, a timeout is
        // returned by the client transaction), the UAC MUST consider the
        // session and the dialog terminated.
        // https://tools.ietf.org/html/rfc3261#section-15.1.1
        return new bye_user_agent_client_1.ByeUserAgentClient(this, delegate, options);
    };
    /**
     * An INFO request can be associated with an Info Package (see
     * Section 5), or associated with a legacy INFO usage (see Section 2).
     *
     * The construction of the INFO request is the same as any other
     * non-target refresh request within an existing invite dialog usage as
     * described in Section 12.2 of RFC 3261.
     * https://tools.ietf.org/html/rfc6086#section-4.2.1
     * @param options - Options bucket.
     */
    SessionDialog.prototype.info = function (delegate, options) {
        this.logger.log("INVITE dialog " + this.id + " sending INFO request");
        if (this.early) {
            // FIXME: TODO: This should throw a proper exception.
            throw new Error("Dialog not confirmed.");
        }
        return new info_user_agent_client_1.InfoUserAgentClient(this, delegate, options);
    };
    /**
     * Modifying an Existing Session
     *
     * A successful INVITE request (see Section 13) establishes both a
     * dialog between two user agents and a session using the offer-answer
     * model.  Section 12 explains how to modify an existing dialog using a
     * target refresh request (for example, changing the remote target URI
     * of the dialog).  This section describes how to modify the actual
     * session.  This modification can involve changing addresses or ports,
     * adding a media stream, deleting a media stream, and so on.  This is
     * accomplished by sending a new INVITE request within the same dialog
     * that established the session.  An INVITE request sent within an
     * existing dialog is known as a re-INVITE.
     *
     *    Note that a single re-INVITE can modify the dialog and the
     *    parameters of the session at the same time.
     *
     * Either the caller or callee can modify an existing session.
     * https://tools.ietf.org/html/rfc3261#section-14
     * @param options - Options bucket
     */
    SessionDialog.prototype.invite = function (delegate, options) {
        this.logger.log("INVITE dialog " + this.id + " sending INVITE request");
        if (this.early) {
            // FIXME: TODO: This should throw a proper exception.
            throw new Error("Dialog not confirmed.");
        }
        // Note that a UAC MUST NOT initiate a new INVITE transaction within a
        // dialog while another INVITE transaction is in progress in either
        // direction.
        //
        //    1. If there is an ongoing INVITE client transaction, the TU MUST
        //       wait until the transaction reaches the completed or terminated
        //       state before initiating the new INVITE.
        //
        //    2. If there is an ongoing INVITE server transaction, the TU MUST
        //       wait until the transaction reaches the confirmed or terminated
        //       state before initiating the new INVITE.
        //
        // However, a UA MAY initiate a regular transaction while an INVITE
        // transaction is in progress.  A UA MAY also initiate an INVITE
        // transaction while a regular transaction is in progress.
        // https://tools.ietf.org/html/rfc3261#section-14.1
        if (this.reinviteUserAgentClient) {
            // FIXME: TODO: This should throw a proper exception.
            throw new Error("There is an ongoing re-INVITE client transaction.");
        }
        if (this.reinviteUserAgentServer) {
            // FIXME: TODO: This should throw a proper exception.
            throw new Error("There is an ongoing re-INVITE server transaction.");
        }
        return new re_invite_user_agent_client_1.ReInviteUserAgentClient(this, delegate, options);
    };
    /**
     * The NOTIFY mechanism defined in [2] MUST be used to inform the agent
     * sending the REFER of the status of the reference.
     * https://tools.ietf.org/html/rfc3515#section-2.4.4
     * @param options - Options bucket.
     */
    SessionDialog.prototype.notify = function (delegate, options) {
        this.logger.log("INVITE dialog " + this.id + " sending NOTIFY request");
        if (this.early) {
            // FIXME: TODO: This should throw a proper exception.
            throw new Error("Dialog not confirmed.");
        }
        return new notify_user_agent_client_1.NotifyUserAgentClient(this, delegate, options);
    };
    /**
     * Assuming the response is to be transmitted reliably, the UAC MUST
     * create a new request with method PRACK.  This request is sent within
     * the dialog associated with the provisional response (indeed, the
     * provisional response may have created the dialog).  PRACK requests
     * MAY contain bodies, which are interpreted according to their type and
     * disposition.
     * https://tools.ietf.org/html/rfc3262#section-4
     * @param options - Options bucket.
     */
    SessionDialog.prototype.prack = function (delegate, options) {
        this.logger.log("INVITE dialog " + this.id + " sending PRACK request");
        return new prack_user_agent_client_1.PrackUserAgentClient(this, delegate, options);
    };
    /**
     * REFER is a SIP request and is constructed as defined in [1].  A REFER
     * request MUST contain exactly one Refer-To header field value.
     * https://tools.ietf.org/html/rfc3515#section-2.4.1
     * @param options - Options bucket.
     */
    SessionDialog.prototype.refer = function (delegate, options) {
        this.logger.log("INVITE dialog " + this.id + " sending REFER request");
        if (this.early) {
            // FIXME: TODO: This should throw a proper exception.
            throw new Error("Dialog not confirmed.");
        }
        // FIXME: TODO: Validate Refer-To header field value.
        return new refer_user_agent_client_1.ReferUserAgentClient(this, delegate, options);
    };
    /**
     * Requests sent within a dialog, as any other requests, are atomic.  If
     * a particular request is accepted by the UAS, all the state changes
     * associated with it are performed.  If the request is rejected, none
     * of the state changes are performed.
     * https://tools.ietf.org/html/rfc3261#section-12.2.2
     * @param message - Incoming request message within this dialog.
     */
    SessionDialog.prototype.receiveRequest = function (message) {
        this.logger.log("INVITE dialog " + this.id + " received " + message.method + " request");
        // Response retransmissions cease when an ACK request for the
        // response is received.  This is independent of whatever transport
        // protocols are used to send the response.
        // https://tools.ietf.org/html/rfc6026#section-8.1
        if (message.method === messages_1.C.ACK) {
            // If ackWait is true, then this is the ACK to the initial INVITE,
            // otherwise this is an ACK to an in dialog INVITE. In either case,
            // guard to make sure the sequence number of the ACK matches the INVITE.
            if (this.ackWait) {
                if (this.initialTransaction instanceof transactions_1.InviteClientTransaction) {
                    this.logger.warn("INVITE dialog " + this.id + " received unexpected " + message.method + " request, dropping.");
                    return;
                }
                if (this.initialTransaction.request.cseq !== message.cseq) {
                    this.logger.warn("INVITE dialog " + this.id + " received unexpected " + message.method + " request, dropping.");
                    return;
                }
                // Update before the delegate has a chance to handle the
                // message as delegate may callback into this dialog.
                this.ackWait = false;
            }
            else {
                if (!this.reinviteUserAgentServer) {
                    this.logger.warn("INVITE dialog " + this.id + " received unexpected " + message.method + " request, dropping.");
                    return;
                }
                if (this.reinviteUserAgentServer.transaction.request.cseq !== message.cseq) {
                    this.logger.warn("INVITE dialog " + this.id + " received unexpected " + message.method + " request, dropping.");
                    return;
                }
                this.reinviteUserAgentServer = undefined;
            }
            this.signalingStateTransition(message);
            if (this.delegate && this.delegate.onAck) {
                this.delegate.onAck({ message: message });
            }
            return;
        }
        // Request within a dialog out of sequence guard.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        if (!this.sequenceGuard(message)) {
            this.logger.log("INVITE dialog " + this.id + " rejected out of order " + message.method + " request.");
            return;
        }
        if (message.method === messages_1.C.INVITE) {
            // A UAS that receives a second INVITE before it sends the final
            // response to a first INVITE with a lower CSeq sequence number on the
            // same dialog MUST return a 500 (Server Internal Error) response to the
            // second INVITE and MUST include a Retry-After header field with a
            // randomly chosen value of between 0 and 10 seconds.
            // https://tools.ietf.org/html/rfc3261#section-14.2
            if (this.reinviteUserAgentServer) {
                // https://tools.ietf.org/html/rfc3261#section-20.33
                var retryAfter = Math.floor((Math.random() * 10)) + 1;
                var extraHeaders = ["Retry-After: " + retryAfter];
                this.core.replyStateless(message, { statusCode: 500, extraHeaders: extraHeaders });
                return;
            }
            // A UAS that receives an INVITE on a dialog while an INVITE it had sent
            // on that dialog is in progress MUST return a 491 (Request Pending)
            // response to the received INVITE.
            // https://tools.ietf.org/html/rfc3261#section-14.2
            if (this.reinviteUserAgentClient) {
                this.core.replyStateless(message, { statusCode: 491 });
                return;
            }
        }
        // Request within a dialog common processing.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        _super.prototype.receiveRequest.call(this, message);
        // Requests within a dialog MAY contain Record-Route and Contact header
        // fields.  However, these requests do not cause the dialog's route set
        // to be modified, although they may modify the remote target URI.
        // Specifically, requests that are not target refresh requests do not
        // modify the dialog's remote target URI, and requests that are target
        // refresh requests do.  For dialogs that have been established with an
        // INVITE, the only target refresh request defined is re-INVITE (see
        // Section 14).  Other extensions may define different target refresh
        // requests for dialogs established in other ways.
        //
        //    Note that an ACK is NOT a target refresh request.
        //
        // Target refresh requests only update the dialog's remote target URI,
        // and not the route set formed from the Record-Route.  Updating the
        // latter would introduce severe backwards compatibility problems with
        // RFC 2543-compliant systems.
        // https://tools.ietf.org/html/rfc3261#section-15
        if (message.method === messages_1.C.INVITE) {
            // FIXME: parser needs to be typed...
            var contact = message.parseHeader("contact");
            if (!contact) { // TODO: Review to make sure this will never happen
                throw new Error("Contact undefined.");
            }
            if (!(contact instanceof messages_1.NameAddrHeader)) {
                throw new Error("Contact not instance of NameAddrHeader.");
            }
            this.dialogState.remoteTarget = contact.uri;
        }
        // Switch on method and then delegate.
        switch (message.method) {
            case messages_1.C.BYE:
                // A UAS core receiving a BYE request for an existing dialog MUST follow
                // the procedures of Section 12.2.2 to process the request.  Once done,
                // the UAS SHOULD terminate the session (and therefore stop sending and
                // listening for media).  The only case where it can elect not to are
                // multicast sessions, where participation is possible even if the other
                // participant in the dialog has terminated its involvement in the
                // session.  Whether or not it ends its participation on the session,
                // the UAS core MUST generate a 2xx response to the BYE, and MUST pass
                // that to the server transaction for transmission.
                //
                // The UAS MUST still respond to any pending requests received for that
                // dialog.  It is RECOMMENDED that a 487 (Request Terminated) response
                // be generated to those pending requests.
                // https://tools.ietf.org/html/rfc3261#section-15.1.2
                {
                    var uas = new bye_user_agent_server_1.ByeUserAgentServer(this, message);
                    this.delegate && this.delegate.onBye ?
                        this.delegate.onBye(uas) :
                        uas.accept();
                    this.dispose();
                }
                break;
            case messages_1.C.INFO:
                // If a UA receives an INFO request associated with an Info Package that
                // the UA has not indicated willingness to receive, the UA MUST send a
                // 469 (Bad Info Package) response (see Section 11.6), which contains a
                // Recv-Info header field with Info Packages for which the UA is willing
                // to receive INFO requests.
                {
                    var uas = new info_user_agent_server_1.InfoUserAgentServer(this, message);
                    this.delegate && this.delegate.onInfo ?
                        this.delegate.onInfo(uas) :
                        uas.reject({
                            statusCode: 469,
                            extraHeaders: ["Recv-Info :"]
                        });
                }
                break;
            case messages_1.C.INVITE:
                // If the new session description is not acceptable, the UAS can reject
                // it by returning a 488 (Not Acceptable Here) response for the re-
                // INVITE.  This response SHOULD include a Warning header field.
                // https://tools.ietf.org/html/rfc3261#section-14.2
                {
                    var uas = new re_invite_user_agent_server_1.ReInviteUserAgentServer(this, message);
                    this.signalingStateTransition(message);
                    this.delegate && this.delegate.onInvite ?
                        this.delegate.onInvite(uas) :
                        uas.reject({ statusCode: 488 }); // TODO: Warning header field.
                }
                break;
            case messages_1.C.NOTIFY:
                // https://tools.ietf.org/html/rfc3515#section-2.4.4
                {
                    var uas = new notify_user_agent_server_1.NotifyUserAgentServer(this, message);
                    this.delegate && this.delegate.onNotify ?
                        this.delegate.onNotify(uas) :
                        uas.accept();
                }
                break;
            case messages_1.C.PRACK:
                // https://tools.ietf.org/html/rfc3262#section-4
                {
                    var uas = new prack_user_agent_server_1.PrackUserAgentServer(this, message);
                    this.delegate && this.delegate.onPrack ?
                        this.delegate.onPrack(uas) :
                        uas.accept();
                }
                break;
            case messages_1.C.REFER:
                // https://tools.ietf.org/html/rfc3515#section-2.4.2
                {
                    var uas = new refer_user_agent_server_1.ReferUserAgentServer(this, message);
                    this.delegate && this.delegate.onRefer ?
                        this.delegate.onRefer(uas) :
                        uas.reject();
                }
                break;
            default:
                {
                    this.logger.log("INVITE dialog " + this.id + " received unimplemented " + message.method + " request");
                    this.core.replyStateless(message, { statusCode: 501 });
                }
                break;
        }
    };
    SessionDialog.prototype.reliableSequenceGuard = function (message) {
        var statusCode = message.statusCode;
        if (!statusCode) {
            throw new Error("Status code undefined");
        }
        if (statusCode > 100 && statusCode < 200) {
            // If a provisional response is received for an initial request, and
            // that response contains a Require header field containing the option
            // tag 100rel, the response is to be sent reliably.  If the response is
            // a 100 (Trying) (as opposed to 101 to 199), this option tag MUST be
            // ignored, and the procedures below MUST NOT be used.
            // https://tools.ietf.org/html/rfc3262#section-4
            var requireHeader = message.getHeader("require");
            var rseqHeader = message.getHeader("rseq");
            var rseq = requireHeader && requireHeader.includes("100rel") && rseqHeader ? Number(rseqHeader) : undefined;
            if (rseq) {
                // Handling of subsequent reliable provisional responses for the same
                // initial request follows the same rules as above, with the following
                // difference: reliable provisional responses are guaranteed to be in
                // order.  As a result, if the UAC receives another reliable provisional
                // response to the same request, and its RSeq value is not one higher
                // than the value of the sequence number, that response MUST NOT be
                // acknowledged with a PRACK, and MUST NOT be processed further by the
                // UAC.  An implementation MAY discard the response, or MAY cache the
                // response in the hopes of receiving the missing responses.
                // https://tools.ietf.org/html/rfc3262#section-4
                if (this.rseq && this.rseq + 1 !== rseq) {
                    return false;
                }
                // Once a reliable provisional response is received, retransmissions of
                // that response MUST be discarded.  A response is a retransmission when
                // its dialog ID, CSeq, and RSeq match the original response.  The UAC
                // MUST maintain a sequence number that indicates the most recently
                // received in-order reliable provisional response for the initial
                // request.  This sequence number MUST be maintained until a final
                // response is received for the initial request.  Its value MUST be
                // initialized to the RSeq header field in the first reliable
                // provisional response received for the initial request.
                // https://tools.ietf.org/html/rfc3262#section-4
                if (!this.rseq) {
                    this.rseq = rseq;
                }
            }
        }
        return true;
    };
    /**
     * If not in a stable signaling state, rollback to prior stable signaling state.
     */
    SessionDialog.prototype.signalingStateRollback = function () {
        if (this._signalingState === session_1.SignalingState.HaveLocalOffer ||
            this.signalingState === session_1.SignalingState.HaveRemoteOffer) {
            if (this._rollbackOffer && this._rollbackAnswer) {
                this._signalingState = session_1.SignalingState.Stable;
                this._offer = this._rollbackOffer;
                this._answer = this._rollbackAnswer;
            }
        }
    };
    /**
     * Update the signaling state of the dialog.
     * @param message - The message to base the update off of.
     */
    SessionDialog.prototype.signalingStateTransition = function (message) {
        var body = messages_1.getBody(message);
        // No body, no session. No, woman, no cry.
        if (!body || body.contentDisposition !== "session") {
            return;
        }
        // We've got an existing offer and answer which we may wish to rollback to
        if (this._signalingState === session_1.SignalingState.Stable) {
            this._rollbackOffer = this._offer;
            this._rollbackAnswer = this._answer;
        }
        // We're in UAS role, receiving incoming request with session description
        if (message instanceof messages_1.IncomingRequestMessage) {
            switch (this._signalingState) {
                case session_1.SignalingState.Initial:
                case session_1.SignalingState.Stable:
                    this._signalingState = session_1.SignalingState.HaveRemoteOffer;
                    this._offer = body;
                    this._answer = undefined;
                    break;
                case session_1.SignalingState.HaveLocalOffer:
                    this._signalingState = session_1.SignalingState.Stable;
                    this._answer = body;
                    break;
                case session_1.SignalingState.HaveRemoteOffer:
                    // You cannot make a new offer while one is in progress.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    // FIXME: What to do here?
                    break;
                case session_1.SignalingState.Closed:
                    break;
                default:
                    throw new Error("Unexpected signaling state.");
            }
        }
        // We're in UAC role, receiving incoming response with session description
        if (message instanceof messages_1.IncomingResponseMessage) {
            switch (this._signalingState) {
                case session_1.SignalingState.Initial:
                case session_1.SignalingState.Stable:
                    this._signalingState = session_1.SignalingState.HaveRemoteOffer;
                    this._offer = body;
                    this._answer = undefined;
                    break;
                case session_1.SignalingState.HaveLocalOffer:
                    this._signalingState = session_1.SignalingState.Stable;
                    this._answer = body;
                    break;
                case session_1.SignalingState.HaveRemoteOffer:
                    // You cannot make a new offer while one is in progress.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    // FIXME: What to do here?
                    break;
                case session_1.SignalingState.Closed:
                    break;
                default:
                    throw new Error("Unexpected signaling state.");
            }
        }
        // We're in UAC role, sending outgoing request with session description
        if (message instanceof messages_1.OutgoingRequestMessage) {
            switch (this._signalingState) {
                case session_1.SignalingState.Initial:
                case session_1.SignalingState.Stable:
                    this._signalingState = session_1.SignalingState.HaveLocalOffer;
                    this._offer = body;
                    this._answer = undefined;
                    break;
                case session_1.SignalingState.HaveLocalOffer:
                    // You cannot make a new offer while one is in progress.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    // FIXME: What to do here?
                    break;
                case session_1.SignalingState.HaveRemoteOffer:
                    this._signalingState = session_1.SignalingState.Stable;
                    this._answer = body;
                    break;
                case session_1.SignalingState.Closed:
                    break;
                default:
                    throw new Error("Unexpected signaling state.");
            }
        }
        // We're in UAS role, sending outgoing response with session description
        if (messages_1.isBody(message)) {
            switch (this._signalingState) {
                case session_1.SignalingState.Initial:
                case session_1.SignalingState.Stable:
                    this._signalingState = session_1.SignalingState.HaveLocalOffer;
                    this._offer = body;
                    this._answer = undefined;
                    break;
                case session_1.SignalingState.HaveLocalOffer:
                    // You cannot make a new offer while one is in progress.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    // FIXME: What to do here?
                    break;
                case session_1.SignalingState.HaveRemoteOffer:
                    this._signalingState = session_1.SignalingState.Stable;
                    this._answer = body;
                    break;
                case session_1.SignalingState.Closed:
                    break;
                default:
                    throw new Error("Unexpected signaling state.");
            }
        }
    };
    SessionDialog.prototype.start2xxRetransmissionTimer = function () {
        var _this = this;
        if (this.initialTransaction instanceof transactions_1.InviteServerTransaction) {
            var transaction_1 = this.initialTransaction;
            // Once the response has been constructed, it is passed to the INVITE
            // server transaction.  In order to ensure reliable end-to-end
            // transport of the response, it is necessary to periodically pass
            // the response directly to the transport until the ACK arrives.  The
            // 2xx response is passed to the transport with an interval that
            // starts at T1 seconds and doubles for each retransmission until it
            // reaches T2 seconds (T1 and T2 are defined in Section 17).
            // Response retransmissions cease when an ACK request for the
            // response is received.  This is independent of whatever transport
            // protocols are used to send the response.
            // https://tools.ietf.org/html/rfc6026#section-8.1
            var timeout_1 = timers_1.Timers.T1;
            var retransmission_1 = function () {
                if (!_this.ackWait) {
                    _this.invite2xxTimer = undefined;
                    return;
                }
                _this.logger.log("No ACK for 2xx response received, attempting retransmission");
                transaction_1.retransmitAcceptedResponse();
                timeout_1 = Math.min(timeout_1 * 2, timers_1.Timers.T2);
                _this.invite2xxTimer = setTimeout(retransmission_1, timeout_1);
            };
            this.invite2xxTimer = setTimeout(retransmission_1, timeout_1);
            // If the server retransmits the 2xx response for 64*T1 seconds without
            // receiving an ACK, the dialog is confirmed, but the session SHOULD be
            // terminated.  This is accomplished with a BYE, as described in Section 15.
            // https://tools.ietf.org/html/rfc3261#section-13.3.1.4
            var stateChanged_1 = function () {
                if (transaction_1.state === transactions_1.TransactionState.Terminated) {
                    transaction_1.removeListener("stateChanged", stateChanged_1);
                    if (_this.invite2xxTimer) {
                        clearTimeout(_this.invite2xxTimer);
                        _this.invite2xxTimer = undefined;
                    }
                    if (_this.ackWait) {
                        if (_this.delegate && _this.delegate.onAckTimeout) {
                            _this.delegate.onAckTimeout();
                        }
                        else {
                            _this.bye();
                        }
                    }
                }
            };
            transaction_1.addListener("stateChanged", stateChanged_1);
        }
    };
    // FIXME: Refactor
    SessionDialog.prototype.startReInvite2xxRetransmissionTimer = function () {
        var _this = this;
        if (this.reinviteUserAgentServer && this.reinviteUserAgentServer.transaction instanceof transactions_1.InviteServerTransaction) {
            var transaction_2 = this.reinviteUserAgentServer.transaction;
            // Once the response has been constructed, it is passed to the INVITE
            // server transaction.  In order to ensure reliable end-to-end
            // transport of the response, it is necessary to periodically pass
            // the response directly to the transport until the ACK arrives.  The
            // 2xx response is passed to the transport with an interval that
            // starts at T1 seconds and doubles for each retransmission until it
            // reaches T2 seconds (T1 and T2 are defined in Section 17).
            // Response retransmissions cease when an ACK request for the
            // response is received.  This is independent of whatever transport
            // protocols are used to send the response.
            // https://tools.ietf.org/html/rfc6026#section-8.1
            var timeout_2 = timers_1.Timers.T1;
            var retransmission_2 = function () {
                if (!_this.reinviteUserAgentServer) {
                    _this.invite2xxTimer = undefined;
                    return;
                }
                _this.logger.log("No ACK for 2xx response received, attempting retransmission");
                transaction_2.retransmitAcceptedResponse();
                timeout_2 = Math.min(timeout_2 * 2, timers_1.Timers.T2);
                _this.invite2xxTimer = setTimeout(retransmission_2, timeout_2);
            };
            this.invite2xxTimer = setTimeout(retransmission_2, timeout_2);
            // If the server retransmits the 2xx response for 64*T1 seconds without
            // receiving an ACK, the dialog is confirmed, but the session SHOULD be
            // terminated.  This is accomplished with a BYE, as described in Section 15.
            // https://tools.ietf.org/html/rfc3261#section-13.3.1.4
            var stateChanged_2 = function () {
                if (transaction_2.state === transactions_1.TransactionState.Terminated) {
                    transaction_2.removeListener("stateChanged", stateChanged_2);
                    if (_this.invite2xxTimer) {
                        clearTimeout(_this.invite2xxTimer);
                        _this.invite2xxTimer = undefined;
                    }
                    if (_this.reinviteUserAgentServer) {
                        // FIXME: TODO: What to do here
                    }
                }
            };
            transaction_2.addListener("stateChanged", stateChanged_2);
        }
    };
    return SessionDialog;
}(dialog_1.Dialog));
exports.SessionDialog = SessionDialog;


/***/ }),
/* 24 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(25), exports);


/***/ }),
/* 25 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Session state.
 * @remarks
 * https://tools.ietf.org/html/rfc3261#section-13
 * @public
 */
var SessionState;
(function (SessionState) {
    SessionState["Initial"] = "Initial";
    SessionState["Early"] = "Early";
    SessionState["AckWait"] = "AckWait";
    SessionState["Confirmed"] = "Confirmed";
    SessionState["Terminated"] = "Terminated";
})(SessionState = exports.SessionState || (exports.SessionState = {}));
/**
 * Offer/Answer state.
 * @remarks
 * ```txt
 *         Offer                Answer             RFC    Ini Est Early
 *  -------------------------------------------------------------------
 *  1. INVITE Req.          2xx INVITE Resp.     RFC 3261  Y   Y    N
 *  2. 2xx INVITE Resp.     ACK Req.             RFC 3261  Y   Y    N
 *  3. INVITE Req.          1xx-rel INVITE Resp. RFC 3262  Y   Y    N
 *  4. 1xx-rel INVITE Resp. PRACK Req.           RFC 3262  Y   Y    N
 *  5. PRACK Req.           200 PRACK Resp.      RFC 3262  N   Y    Y
 *  6. UPDATE Req.          2xx UPDATE Resp.     RFC 3311  N   Y    Y
 *
 *       Table 1: Summary of SIP Usage of the Offer/Answer Model
 * ```
 * https://tools.ietf.org/html/rfc6337#section-2.2
 * @public
 */
var SignalingState;
(function (SignalingState) {
    SignalingState["Initial"] = "Initial";
    SignalingState["HaveLocalOffer"] = "HaveLocalOffer";
    SignalingState["HaveRemoteOffer"] = "HaveRemoteOffer";
    SignalingState["Stable"] = "Stable";
    SignalingState["Closed"] = "Closed";
})(SignalingState = exports.SignalingState || (exports.SignalingState = {}));


/***/ }),
/* 26 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var T1 = 500;
var T2 = 4000;
var T4 = 5000;
/**
 * Timers.
 * @public
 */
exports.Timers = {
    T1: T1,
    T2: T2,
    T4: T4,
    TIMER_B: 64 * T1,
    TIMER_D: 0 * T1,
    TIMER_F: 64 * T1,
    TIMER_H: 64 * T1,
    TIMER_I: 0 * T4,
    TIMER_J: 0 * T1,
    TIMER_K: 0 * T4,
    TIMER_L: 64 * T1,
    TIMER_M: 64 * T1,
    TIMER_N: 64 * T1,
    PROVISIONAL_RESPONSE_INTERVAL: 60000 // See RFC 3261 Section 13.3.1.1
};


/***/ }),
/* 27 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(28), exports);
tslib_1.__exportStar(__webpack_require__(35), exports);
tslib_1.__exportStar(__webpack_require__(37), exports);
tslib_1.__exportStar(__webpack_require__(39), exports);
tslib_1.__exportStar(__webpack_require__(40), exports);
tslib_1.__exportStar(__webpack_require__(35), exports);
tslib_1.__exportStar(__webpack_require__(38), exports);
tslib_1.__exportStar(__webpack_require__(36), exports);
tslib_1.__exportStar(__webpack_require__(29), exports);


/***/ }),
/* 28 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transaction_1 = __webpack_require__(29);
/**
 * Client Transaction.
 * @remarks
 * The client transaction provides its functionality through the
 * maintenance of a state machine.
 *
 * The TU communicates with the client transaction through a simple
 * interface.  When the TU wishes to initiate a new transaction, it
 * creates a client transaction and passes it the SIP request to send
 * and an IP address, port, and transport to which to send it.  The
 * client transaction begins execution of its state machine.  Valid
 * responses are passed up to the TU from the client transaction.
 * https://tools.ietf.org/html/rfc3261#section-17.1
 * @public
 */
var ClientTransaction = /** @class */ (function (_super) {
    tslib_1.__extends(ClientTransaction, _super);
    function ClientTransaction(_request, transport, user, state, loggerCategory) {
        var _this = _super.call(this, transport, user, ClientTransaction.makeId(_request), state, loggerCategory) || this;
        _this._request = _request;
        _this.user = user;
        // The Via header field indicates the transport used for the transaction
        // and identifies the location where the response is to be sent.  A Via
        // header field value is added only after the transport that will be
        // used to reach the next hop has been selected (which may involve the
        // usage of the procedures in [4]).
        // https://tools.ietf.org/html/rfc3261#section-8.1.1.7
        // FIXME: Transport's server property is not typed (as of writing this).
        var scheme = transport.server && transport.server.scheme ? transport.server.scheme : undefined;
        _request.setViaHeader(_this.id, scheme);
        return _this;
    }
    ClientTransaction.makeId = function (request) {
        if (request.method === "CANCEL") {
            if (!request.branch) {
                throw new Error("Outgoing CANCEL request without a branch.");
            }
            return request.branch;
        }
        else {
            return "z9hG4bK" + Math.floor(Math.random() * 10000000);
        }
    };
    Object.defineProperty(ClientTransaction.prototype, "request", {
        /** The outgoing request the transaction handling. */
        get: function () {
            return this._request;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * A 408 to non-INVITE will always arrive too late to be useful ([3]),
     * The client already has full knowledge of the timeout. The only
     * information this message would convey is whether or not the server
     * believed the transaction timed out. However, with the current design
     * of the NIT, a client cannot do anything with this knowledge. Thus,
     * the 408 is simply wasting network resources and contributes to the
     * response bombardment illustrated in [3].
     * https://tools.ietf.org/html/rfc4320#section-4.1
     */
    ClientTransaction.prototype.onRequestTimeout = function () {
        if (this.user.onRequestTimeout) {
            this.user.onRequestTimeout();
        }
    };
    return ClientTransaction;
}(transaction_1.Transaction));
exports.ClientTransaction = ClientTransaction;


/***/ }),
/* 29 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var exceptions_1 = __webpack_require__(31);
/**
 * Transaction.
 * @remarks
 * SIP is a transactional protocol: interactions between components take
 * place in a series of independent message exchanges.  Specifically, a
 * SIP transaction consists of a single request and any responses to
 * that request, which include zero or more provisional responses and
 * one or more final responses.  In the case of a transaction where the
 * request was an INVITE (known as an INVITE transaction), the
 * transaction also includes the ACK only if the final response was not
 * a 2xx response.  If the response was a 2xx, the ACK is not considered
 * part of the transaction.
 * https://tools.ietf.org/html/rfc3261#section-17
 * @public
 */
var Transaction = /** @class */ (function (_super) {
    tslib_1.__extends(Transaction, _super);
    function Transaction(_transport, _user, _id, _state, loggerCategory) {
        var _this = _super.call(this) || this;
        _this._transport = _transport;
        _this._user = _user;
        _this._id = _id;
        _this._state = _state;
        _this.logger = _user.loggerFactory.getLogger(loggerCategory, _id);
        _this.logger.debug("Constructing " + _this.typeToString() + " with id " + _this.id + ".");
        return _this;
    }
    /**
     * Destructor.
     * Once the transaction is in the "terminated" state, it is destroyed
     * immediately and there is no need to call `dispose`. However, if a
     * transaction needs to be ended prematurely, the transaction user may
     * do so by calling this method (for example, perhaps the UA is shutting down).
     * No state transition will occur upon calling this method, all outstanding
     * transmission timers will be cancelled, and use of the transaction after
     * calling `dispose` is undefined.
     */
    Transaction.prototype.dispose = function () {
        this.logger.debug("Destroyed " + this.typeToString() + " with id " + this.id + ".");
    };
    Object.defineProperty(Transaction.prototype, "id", {
        /** Transaction id. */
        get: function () {
            return this._id;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Transaction.prototype, "kind", {
        /** Transaction kind. Deprecated. */
        get: function () {
            throw new Error("Invalid kind.");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Transaction.prototype, "state", {
        /** Transaction state. */
        get: function () {
            return this._state;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Transaction.prototype, "transport", {
        /** Transaction transport. */
        get: function () {
            return this._transport;
        },
        enumerable: true,
        configurable: true
    });
    Transaction.prototype.on = function (name, callback) { return _super.prototype.on.call(this, name, callback); };
    Transaction.prototype.logTransportError = function (error, message) {
        this.logger.error(error.message);
        this.logger.error("Transport error occurred in " + this.typeToString() + " with id " + this.id + ".");
        this.logger.error(message);
    };
    /**
     * Pass message to transport for transmission. If transport fails,
     * the transaction user is notified by callback to onTransportError().
     * @returns
     * Rejects with `TransportError` if transport fails.
     */
    Transaction.prototype.send = function (message) {
        var _this = this;
        return this.transport.send(message).catch(function (error) {
            // If the transport rejects, it SHOULD reject with a TransportError.
            // But the transport may be external code, so we are careful
            // make sure we convert it to a TransportError if need be.
            if (error instanceof exceptions_1.TransportError) {
                _this.onTransportError(error);
                throw error;
            }
            var transportError;
            if (error && typeof error.message === "string") {
                transportError = new exceptions_1.TransportError(error.message);
            }
            else {
                transportError = new exceptions_1.TransportError();
            }
            _this.onTransportError(transportError);
            throw transportError;
        });
    };
    Transaction.prototype.setState = function (state) {
        this.logger.debug("State change to \"" + state + "\" on " + this.typeToString() + " with id " + this.id + ".");
        this._state = state;
        if (this._user.onStateChange) {
            this._user.onStateChange(state);
        }
        this.emit("stateChanged");
    };
    Transaction.prototype.typeToString = function () {
        return "UnknownType";
    };
    return Transaction;
}(events_1.EventEmitter));
exports.Transaction = Transaction;


/***/ }),
/* 30 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.



var R = typeof Reflect === 'object' ? Reflect : null
var ReflectApply = R && typeof R.apply === 'function'
  ? R.apply
  : function ReflectApply(target, receiver, args) {
    return Function.prototype.apply.call(target, receiver, args);
  }

var ReflectOwnKeys
if (R && typeof R.ownKeys === 'function') {
  ReflectOwnKeys = R.ownKeys
} else if (Object.getOwnPropertySymbols) {
  ReflectOwnKeys = function ReflectOwnKeys(target) {
    return Object.getOwnPropertyNames(target)
      .concat(Object.getOwnPropertySymbols(target));
  };
} else {
  ReflectOwnKeys = function ReflectOwnKeys(target) {
    return Object.getOwnPropertyNames(target);
  };
}

function ProcessEmitWarning(warning) {
  if (console && console.warn) console.warn(warning);
}

var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {
  return value !== value;
}

function EventEmitter() {
  EventEmitter.init.call(this);
}
module.exports = EventEmitter;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._eventsCount = 0;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
var defaultMaxListeners = 10;

Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
  enumerable: true,
  get: function() {
    return defaultMaxListeners;
  },
  set: function(arg) {
    if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {
      throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.');
    }
    defaultMaxListeners = arg;
  }
});

EventEmitter.init = function() {

  if (this._events === undefined ||
      this._events === Object.getPrototypeOf(this)._events) {
    this._events = Object.create(null);
    this._eventsCount = 0;
  }

  this._maxListeners = this._maxListeners || undefined;
};

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
  if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {
    throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.');
  }
  this._maxListeners = n;
  return this;
};

function $getMaxListeners(that) {
  if (that._maxListeners === undefined)
    return EventEmitter.defaultMaxListeners;
  return that._maxListeners;
}

EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
  return $getMaxListeners(this);
};

EventEmitter.prototype.emit = function emit(type) {
  var args = [];
  for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);
  var doError = (type === 'error');

  var events = this._events;
  if (events !== undefined)
    doError = (doError && events.error === undefined);
  else if (!doError)
    return false;

  // If there is no 'error' event listener then throw.
  if (doError) {
    var er;
    if (args.length > 0)
      er = args[0];
    if (er instanceof Error) {
      // Note: The comments on the `throw` lines are intentional, they show
      // up in Node's output if this results in an unhandled exception.
      throw er; // Unhandled 'error' event
    }
    // At least give some kind of context to the user
    var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));
    err.context = er;
    throw err; // Unhandled 'error' event
  }

  var handler = events[type];

  if (handler === undefined)
    return false;

  if (typeof handler === 'function') {
    ReflectApply(handler, this, args);
  } else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      ReflectApply(listeners[i], this, args);
  }

  return true;
};

function _addListener(target, type, listener, prepend) {
  var m;
  var events;
  var existing;

  if (typeof listener !== 'function') {
    throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
  }

  events = target._events;
  if (events === undefined) {
    events = target._events = Object.create(null);
    target._eventsCount = 0;
  } else {
    // To avoid recursion in the case that type === "newListener"! Before
    // adding it to the listeners, first emit "newListener".
    if (events.newListener !== undefined) {
      target.emit('newListener', type,
                  listener.listener ? listener.listener : listener);

      // Re-assign `events` because a newListener handler could have caused the
      // this._events to be assigned to a new object
      events = target._events;
    }
    existing = events[type];
  }

  if (existing === undefined) {
    // Optimize the case of one listener. Don't need the extra array object.
    existing = events[type] = listener;
    ++target._eventsCount;
  } else {
    if (typeof existing === 'function') {
      // Adding the second element, need to change to array.
      existing = events[type] =
        prepend ? [listener, existing] : [existing, listener];
      // If we've already got an array, just append.
    } else if (prepend) {
      existing.unshift(listener);
    } else {
      existing.push(listener);
    }

    // Check for listener leak
    m = $getMaxListeners(target);
    if (m > 0 && existing.length > m && !existing.warned) {
      existing.warned = true;
      // No error code for this since it is a Warning
      // eslint-disable-next-line no-restricted-syntax
      var w = new Error('Possible EventEmitter memory leak detected. ' +
                          existing.length + ' ' + String(type) + ' listeners ' +
                          'added. Use emitter.setMaxListeners() to ' +
                          'increase limit');
      w.name = 'MaxListenersExceededWarning';
      w.emitter = target;
      w.type = type;
      w.count = existing.length;
      ProcessEmitWarning(w);
    }
  }

  return target;
}

EventEmitter.prototype.addListener = function addListener(type, listener) {
  return _addListener(this, type, listener, false);
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.prependListener =
    function prependListener(type, listener) {
      return _addListener(this, type, listener, true);
    };

function onceWrapper() {
  var args = [];
  for (var i = 0; i < arguments.length; i++) args.push(arguments[i]);
  if (!this.fired) {
    this.target.removeListener(this.type, this.wrapFn);
    this.fired = true;
    ReflectApply(this.listener, this.target, args);
  }
}

function _onceWrap(target, type, listener) {
  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
  var wrapped = onceWrapper.bind(state);
  wrapped.listener = listener;
  state.wrapFn = wrapped;
  return wrapped;
}

EventEmitter.prototype.once = function once(type, listener) {
  if (typeof listener !== 'function') {
    throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
  }
  this.on(type, _onceWrap(this, type, listener));
  return this;
};

EventEmitter.prototype.prependOnceListener =
    function prependOnceListener(type, listener) {
      if (typeof listener !== 'function') {
        throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
      }
      this.prependListener(type, _onceWrap(this, type, listener));
      return this;
    };

// Emits a 'removeListener' event if and only if the listener was removed.
EventEmitter.prototype.removeListener =
    function removeListener(type, listener) {
      var list, events, position, i, originalListener;

      if (typeof listener !== 'function') {
        throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
      }

      events = this._events;
      if (events === undefined)
        return this;

      list = events[type];
      if (list === undefined)
        return this;

      if (list === listener || list.listener === listener) {
        if (--this._eventsCount === 0)
          this._events = Object.create(null);
        else {
          delete events[type];
          if (events.removeListener)
            this.emit('removeListener', type, list.listener || listener);
        }
      } else if (typeof list !== 'function') {
        position = -1;

        for (i = list.length - 1; i >= 0; i--) {
          if (list[i] === listener || list[i].listener === listener) {
            originalListener = list[i].listener;
            position = i;
            break;
          }
        }

        if (position < 0)
          return this;

        if (position === 0)
          list.shift();
        else {
          spliceOne(list, position);
        }

        if (list.length === 1)
          events[type] = list[0];

        if (events.removeListener !== undefined)
          this.emit('removeListener', type, originalListener || listener);
      }

      return this;
    };

EventEmitter.prototype.off = EventEmitter.prototype.removeListener;

EventEmitter.prototype.removeAllListeners =
    function removeAllListeners(type) {
      var listeners, events, i;

      events = this._events;
      if (events === undefined)
        return this;

      // not listening for removeListener, no need to emit
      if (events.removeListener === undefined) {
        if (arguments.length === 0) {
          this._events = Object.create(null);
          this._eventsCount = 0;
        } else if (events[type] !== undefined) {
          if (--this._eventsCount === 0)
            this._events = Object.create(null);
          else
            delete events[type];
        }
        return this;
      }

      // emit removeListener for all listeners on all events
      if (arguments.length === 0) {
        var keys = Object.keys(events);
        var key;
        for (i = 0; i < keys.length; ++i) {
          key = keys[i];
          if (key === 'removeListener') continue;
          this.removeAllListeners(key);
        }
        this.removeAllListeners('removeListener');
        this._events = Object.create(null);
        this._eventsCount = 0;
        return this;
      }

      listeners = events[type];

      if (typeof listeners === 'function') {
        this.removeListener(type, listeners);
      } else if (listeners !== undefined) {
        // LIFO order
        for (i = listeners.length - 1; i >= 0; i--) {
          this.removeListener(type, listeners[i]);
        }
      }

      return this;
    };

function _listeners(target, type, unwrap) {
  var events = target._events;

  if (events === undefined)
    return [];

  var evlistener = events[type];
  if (evlistener === undefined)
    return [];

  if (typeof evlistener === 'function')
    return unwrap ? [evlistener.listener || evlistener] : [evlistener];

  return unwrap ?
    unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
}

EventEmitter.prototype.listeners = function listeners(type) {
  return _listeners(this, type, true);
};

EventEmitter.prototype.rawListeners = function rawListeners(type) {
  return _listeners(this, type, false);
};

EventEmitter.listenerCount = function(emitter, type) {
  if (typeof emitter.listenerCount === 'function') {
    return emitter.listenerCount(type);
  } else {
    return listenerCount.call(emitter, type);
  }
};

EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
  var events = this._events;

  if (events !== undefined) {
    var evlistener = events[type];

    if (typeof evlistener === 'function') {
      return 1;
    } else if (evlistener !== undefined) {
      return evlistener.length;
    }
  }

  return 0;
}

EventEmitter.prototype.eventNames = function eventNames() {
  return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];
};

function arrayClone(arr, n) {
  var copy = new Array(n);
  for (var i = 0; i < n; ++i)
    copy[i] = arr[i];
  return copy;
}

function spliceOne(list, index) {
  for (; index + 1 < list.length; index++)
    list[index] = list[index + 1];
  list.pop();
}

function unwrapListeners(arr) {
  var ret = new Array(arr.length);
  for (var i = 0; i < ret.length; ++i) {
    ret[i] = arr[i].listener || arr[i];
  }
  return ret;
}


/***/ }),
/* 31 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(32), exports);
tslib_1.__exportStar(__webpack_require__(33), exports);
tslib_1.__exportStar(__webpack_require__(34), exports);


/***/ }),
/* 32 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
/**
 * An Exception is considered a condition that a reasonable application may wish to catch.
 * An Error indicates serious problems that a reasonable application should not try to catch.
 * @public
 */
var Exception = /** @class */ (function (_super) {
    tslib_1.__extends(Exception, _super);
    function Exception(message) {
        var _newTarget = this.constructor;
        var _this = _super.call(this, message) || this;
        Object.setPrototypeOf(_this, _newTarget.prototype); // restore prototype chain
        return _this;
    }
    return Exception;
}(Error));
exports.Exception = Exception;


/***/ }),
/* 33 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var exception_1 = __webpack_require__(32);
/**
 * Indicates that the operation could not be completed given the current transaction state.
 * @public
 */
var TransactionStateError = /** @class */ (function (_super) {
    tslib_1.__extends(TransactionStateError, _super);
    function TransactionStateError(message) {
        return _super.call(this, message ? message : "Transaction state error.") || this;
    }
    return TransactionStateError;
}(exception_1.Exception));
exports.TransactionStateError = TransactionStateError;


/***/ }),
/* 34 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var exception_1 = __webpack_require__(32);
/**
 * Transport error.
 * @public
 */
var TransportError = /** @class */ (function (_super) {
    tslib_1.__extends(TransportError, _super);
    function TransportError(message) {
        return _super.call(this, message ? message : "Unspecified transport error.") || this;
    }
    return TransportError;
}(exception_1.Exception));
exports.TransportError = TransportError;


/***/ }),
/* 35 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var timers_1 = __webpack_require__(26);
var client_transaction_1 = __webpack_require__(28);
var transaction_state_1 = __webpack_require__(36);
/**
 * INVITE Client Transaction.
 * @remarks
 * The INVITE transaction consists of a three-way handshake.  The client
 * transaction sends an INVITE, the server transaction sends responses,
 * and the client transaction sends an ACK.
 * https://tools.ietf.org/html/rfc3261#section-17.1.1
 * @public
 */
var InviteClientTransaction = /** @class */ (function (_super) {
    tslib_1.__extends(InviteClientTransaction, _super);
    /**
     * Constructor.
     * Upon construction, the outgoing request's Via header is updated by calling `setViaHeader`.
     * Then `toString` is called on the outgoing request and the message is sent via the transport.
     * After construction the transaction will be in the "calling" state and the transaction id
     * will equal the branch parameter set in the Via header of the outgoing request.
     * https://tools.ietf.org/html/rfc3261#section-17.1.1
     * @param request - The outgoing INVITE request.
     * @param transport - The transport.
     * @param user - The transaction user.
     */
    function InviteClientTransaction(request, transport, user) {
        var _this = _super.call(this, request, transport, user, transaction_state_1.TransactionState.Calling, "sip.transaction.ict") || this;
        /**
         * Map of 2xx to-tag to ACK.
         * If value is not undefined, value is the ACK which was sent.
         * If key exists but value is undefined, a 2xx was received but the ACK not yet sent.
         * Otherwise, a 2xx was not (yet) received for this transaction.
         */
        _this.ackRetransmissionCache = new Map();
        // FIXME: Timer A for unreliable transport not implemented
        //
        // If an unreliable transport is being used, the client transaction
        // MUST start timer A with a value of T1. If a reliable transport is being used,
        // the client transaction SHOULD NOT start timer A (Timer A controls request retransmissions).
        // For any transport, the client transaction MUST start timer B with a value
        // of 64*T1 seconds (Timer B controls transaction timeouts).
        // https://tools.ietf.org/html/rfc3261#section-17.1.1.2
        //
        // While not spelled out in the RFC, Timer B is the maximum amount of time that a sender
        // will wait for an INVITE message to be acknowledged (a SIP response message is received).
        // So Timer B should be cleared when the transaction state proceeds from "Calling".
        _this.B = setTimeout(function () { return _this.timer_B(); }, timers_1.Timers.TIMER_B);
        _this.send(request.toString()).catch(function (error) {
            _this.logTransportError(error, "Failed to send initial outgoing request.");
        });
        return _this;
    }
    /**
     * Destructor.
     */
    InviteClientTransaction.prototype.dispose = function () {
        if (this.B) {
            clearTimeout(this.B);
            this.B = undefined;
        }
        if (this.D) {
            clearTimeout(this.D);
            this.D = undefined;
        }
        if (this.M) {
            clearTimeout(this.M);
            this.M = undefined;
        }
        _super.prototype.dispose.call(this);
    };
    Object.defineProperty(InviteClientTransaction.prototype, "kind", {
        /** Transaction kind. Deprecated. */
        get: function () {
            return "ict";
        },
        enumerable: true,
        configurable: true
    });
    /**
     * ACK a 2xx final response.
     *
     * The transaction includes the ACK only if the final response was not a 2xx response (the
     * transaction will generate and send the ACK to the transport automagically). If the
     * final response was a 2xx, the ACK is not considered part of the transaction (the
     * transaction user needs to generate and send the ACK).
     *
     * This library is not strictly RFC compliant with regard to ACK handling for 2xx final
     * responses. Specifically, retransmissions of ACKs to a 2xx final responses is handled
     * by the transaction layer (instead of the UAC core). The "standard" approach is for
     * the UAC core to receive all 2xx responses and manage sending ACK retransmissions to
     * the transport directly. Herein the transaction layer manages sending ACKs to 2xx responses
     * and any retransmissions of those ACKs as needed.
     *
     * @param ack - The outgoing ACK request.
     */
    InviteClientTransaction.prototype.ackResponse = function (ack) {
        var _this = this;
        var toTag = ack.toTag;
        if (!toTag) {
            throw new Error("To tag undefined.");
        }
        var id = "z9hG4bK" + Math.floor(Math.random() * 10000000);
        // FIXME: Transport's server property is not typed (as of writing this).
        var scheme = this.transport.server && this.transport.server.scheme ? this.transport.server.scheme : undefined;
        ack.setViaHeader(id, scheme);
        this.ackRetransmissionCache.set(toTag, ack); // Add to ACK retransmission cache
        this.send(ack.toString()).catch(function (error) {
            _this.logTransportError(error, "Failed to send ACK to 2xx response.");
        });
    };
    /**
     * Handler for incoming responses from the transport which match this transaction.
     * @param response - The incoming response.
     */
    InviteClientTransaction.prototype.receiveResponse = function (response) {
        var _this = this;
        var statusCode = response.statusCode;
        if (!statusCode || statusCode < 100 || statusCode > 699) {
            throw new Error("Invalid status code " + statusCode);
        }
        switch (this.state) {
            case transaction_state_1.TransactionState.Calling:
                // If the client transaction receives a provisional response while in
                // the "Calling" state, it transitions to the "Proceeding" state. In the
                // "Proceeding" state, the client transaction SHOULD NOT retransmit the
                // request any longer. Furthermore, the provisional response MUST be
                // passed to the TU.  Any further provisional responses MUST be passed
                // up to the TU while in the "Proceeding" state.
                // https://tools.ietf.org/html/rfc3261#section-17.1.1.2
                if (statusCode >= 100 && statusCode <= 199) {
                    this.stateTransition(transaction_state_1.TransactionState.Proceeding);
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                // When a 2xx response is received while in either the "Calling" or
                // "Proceeding" states, the client transaction MUST transition to
                // the "Accepted" state... The 2xx response MUST be passed up to the TU.
                // The client transaction MUST NOT generate an ACK to the 2xx response -- its
                // handling is delegated to the TU. A UAC core will send an ACK to
                // the 2xx response using a new transaction.
                // https://tools.ietf.org/html/rfc6026#section-8.4
                if (statusCode >= 200 && statusCode <= 299) {
                    this.ackRetransmissionCache.set(response.toTag, undefined); // Prime the ACK cache
                    this.stateTransition(transaction_state_1.TransactionState.Accepted);
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                // When in either the "Calling" or "Proceeding" states, reception of
                // a response with status code from 300-699 MUST cause the client
                // transaction to transition to "Completed". The client transaction
                // MUST pass the received response up to the TU, and the client
                // transaction MUST generate an ACK request, even if the transport is
                // reliable (guidelines for constructing the ACK from the response
                // are given in Section 17.1.1.3), and then pass the ACK to the
                // transport layer for transmission. The ACK MUST be sent to the
                // same address, port, and transport to which the original request was sent.
                // https://tools.ietf.org/html/rfc6026#section-8.4
                if (statusCode >= 300 && statusCode <= 699) {
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    this.ack(response);
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Proceeding:
                // In the "Proceeding" state, the client transaction SHOULD NOT retransmit the
                // request any longer. Furthermore, the provisional response MUST be
                // passed to the TU.  Any further provisional responses MUST be passed
                // up to the TU while in the "Proceeding" state.
                // https://tools.ietf.org/html/rfc3261#section-17.1.1.2
                if (statusCode >= 100 && statusCode <= 199) {
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                // When a 2xx response is received while in either the "Calling" or "Proceeding" states,
                // the client transaction MUST transition to the "Accepted" state...
                // The 2xx response MUST be passed up to the TU. The client
                // transaction MUST NOT generate an ACK to the 2xx response -- its
                // handling is delegated to the TU. A UAC core will send an ACK to
                // the 2xx response using a new transaction.
                // https://tools.ietf.org/html/rfc6026#section-8.4
                if (statusCode >= 200 && statusCode <= 299) {
                    this.ackRetransmissionCache.set(response.toTag, undefined); // Prime the ACK cache
                    this.stateTransition(transaction_state_1.TransactionState.Accepted);
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                // When in either the "Calling" or "Proceeding" states, reception of
                // a response with status code from 300-699 MUST cause the client
                // transaction to transition to "Completed". The client transaction
                // MUST pass the received response up to the TU, and the client
                // transaction MUST generate an ACK request, even if the transport is
                // reliable (guidelines for constructing the ACK from the response
                // are given in Section 17.1.1.3), and then pass the ACK to the
                // transport layer for transmission. The ACK MUST be sent to the
                // same address, port, and transport to which the original request was sent.
                // https://tools.ietf.org/html/rfc6026#section-8.4
                if (statusCode >= 300 && statusCode <= 699) {
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    this.ack(response);
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Accepted:
                // The purpose of the "Accepted" state is to allow the client
                // transaction to continue to exist to receive, and pass to the TU,
                // any retransmissions of the 2xx response and any additional 2xx
                // responses from other branches of the INVITE if it forked
                // downstream. Timer M reflects the amount of time that the
                // transaction user will wait for such messages.
                //
                // Any 2xx responses that match this client transaction and that are
                // received while in the "Accepted" state MUST be passed up to the
                // TU. The client transaction MUST NOT generate an ACK to the 2xx
                // response. The client transaction takes no further action.
                // https://tools.ietf.org/html/rfc6026#section-8.4
                if (statusCode >= 200 && statusCode <= 299) {
                    // NOTE: This implementation herein is intentionally not RFC compliant.
                    // While the first 2xx response for a given branch is passed up to the TU,
                    // retransmissions of 2xx responses are absorbed and the ACK associated
                    // with the original response is resent. This approach is taken because
                    // our current transaction users are not currently in a good position to
                    // deal with 2xx retransmission. This SHOULD NOT cause any compliance issues - ;)
                    //
                    // If we don't have a cache hit, pass the response to the TU.
                    if (!this.ackRetransmissionCache.has(response.toTag)) {
                        this.ackRetransmissionCache.set(response.toTag, undefined); // Prime the ACK cache
                        if (this.user.receiveResponse) {
                            this.user.receiveResponse(response);
                        }
                        return;
                    }
                    // If we have a cache hit, try pulling the ACK from cache and retransmitting it.
                    var ack = this.ackRetransmissionCache.get(response.toTag);
                    if (ack) {
                        this.send(ack.toString()).catch(function (error) {
                            _this.logTransportError(error, "Failed to send retransmission of ACK to 2xx response.");
                        });
                        return;
                    }
                    // If an ACK was not found in cache then we have received a retransmitted 2xx
                    // response before the TU responded to the original response (we don't have an ACK yet).
                    // So discard this response under the assumption that the TU will eventually
                    // get us a ACK for the original response.
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Completed:
                // Any retransmissions of a response with status code 300-699 that
                // are received while in the "Completed" state MUST cause the ACK to
                // be re-passed to the transport layer for retransmission, but the
                // newly received response MUST NOT be passed up to the TU.
                // https://tools.ietf.org/html/rfc6026#section-8.4
                if (statusCode >= 300 && statusCode <= 699) {
                    this.ack(response);
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Terminated:
                break;
            default:
                throw new Error("Invalid state " + this.state);
        }
        // Any response received that does not match an existing client
        // transaction state machine is simply dropped. (Implementations are,
        // of course, free to log or do other implementation-specific things
        // with such responses, but the implementer should be sure to consider
        // the impact of large numbers of malicious stray responses.)
        // https://tools.ietf.org/html/rfc6026#section-7.2
        var message = "Received unexpected " + statusCode + " response while in state " + this.state + ".";
        this.logger.warn(message);
        return;
    };
    /**
     * The client transaction SHOULD inform the TU that a transport failure
     * has occurred, and the client transaction SHOULD transition directly
     * to the "Terminated" state.  The TU will handle the failover
     * mechanisms described in [4].
     * https://tools.ietf.org/html/rfc3261#section-17.1.4
     * @param error - The error.
     */
    InviteClientTransaction.prototype.onTransportError = function (error) {
        if (this.user.onTransportError) {
            this.user.onTransportError(error);
        }
        this.stateTransition(transaction_state_1.TransactionState.Terminated, true);
    };
    /** For logging. */
    InviteClientTransaction.prototype.typeToString = function () {
        return "INVITE client transaction";
    };
    InviteClientTransaction.prototype.ack = function (response) {
        var _this = this;
        // The ACK request constructed by the client transaction MUST contain
        // values for the Call-ID, From, and Request-URI that are equal to the
        // values of those header fields in the request passed to the transport
        // by the client transaction (call this the "original request"). The To
        // header field in the ACK MUST equal the To header field in the
        // response being acknowledged, and therefore will usually differ from
        // the To header field in the original request by the addition of the
        // tag parameter. The ACK MUST contain a single Via header field, and
        // this MUST be equal to the top Via header field of the original
        // request. The CSeq header field in the ACK MUST contain the same
        // value for the sequence number as was present in the original request,
        // but the method parameter MUST be equal to "ACK".
        //
        // If the INVITE request whose response is being acknowledged had Route
        // header fields, those header fields MUST appear in the ACK. This is
        // to ensure that the ACK can be routed properly through any downstream
        // stateless proxies.
        // https://tools.ietf.org/html/rfc3261#section-17.1.1.3
        var ruri = this.request.ruri;
        var callId = this.request.callId;
        var cseq = this.request.cseq;
        var from = this.request.getHeader("from");
        var to = response.getHeader("to");
        var via = this.request.getHeader("via");
        var route = this.request.getHeader("route");
        if (!from) {
            throw new Error("From undefined.");
        }
        if (!to) {
            throw new Error("To undefined.");
        }
        if (!via) {
            throw new Error("Via undefined.");
        }
        var ack = "ACK " + ruri + " SIP/2.0\r\n";
        if (route) {
            ack += "Route: " + route + "\r\n";
        }
        ack += "Via: " + via + "\r\n";
        ack += "To: " + to + "\r\n";
        ack += "From: " + from + "\r\n";
        ack += "Call-ID: " + callId + "\r\n";
        ack += "CSeq: " + cseq + " ACK\r\n";
        ack += "Max-Forwards: 70\r\n";
        ack += "Content-Length: 0\r\n\r\n";
        // TOOO: "User-Agent" header
        this.send(ack).catch(function (error) {
            _this.logTransportError(error, "Failed to send ACK to non-2xx response.");
        });
        return;
    };
    /**
     * Execute a state transition.
     * @param newState - New state.
     */
    InviteClientTransaction.prototype.stateTransition = function (newState, dueToTransportError) {
        var _this = this;
        if (dueToTransportError === void 0) { dueToTransportError = false; }
        // Assert valid state transitions.
        var invalidStateTransition = function () {
            throw new Error("Invalid state transition from " + _this.state + " to " + newState);
        };
        switch (newState) {
            case transaction_state_1.TransactionState.Calling:
                invalidStateTransition();
                break;
            case transaction_state_1.TransactionState.Proceeding:
                if (this.state !== transaction_state_1.TransactionState.Calling) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Accepted:
            case transaction_state_1.TransactionState.Completed:
                if (this.state !== transaction_state_1.TransactionState.Calling &&
                    this.state !== transaction_state_1.TransactionState.Proceeding) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Terminated:
                if (this.state !== transaction_state_1.TransactionState.Calling &&
                    this.state !== transaction_state_1.TransactionState.Accepted &&
                    this.state !== transaction_state_1.TransactionState.Completed) {
                    if (!dueToTransportError) {
                        invalidStateTransition();
                    }
                }
                break;
            default:
                invalidStateTransition();
        }
        // While not spelled out in the RFC, Timer B is the maximum amount of time that a sender
        // will wait for an INVITE message to be acknowledged (a SIP response message is received).
        // So Timer B should be cleared when the transaction state proceeds from "Calling".
        if (this.B) {
            clearTimeout(this.B);
            this.B = undefined;
        }
        if (newState === transaction_state_1.TransactionState.Proceeding) {
            // Timers have no effect on "Proceeding" state.
            // In the "Proceeding" state, the client transaction
            // SHOULD NOT retransmit the request any longer.
            // https://tools.ietf.org/html/rfc3261#section-17.1.1.2
        }
        // The client transaction MUST start Timer D when it enters the "Completed" state
        // for any reason, with a value of at least 32 seconds for unreliable transports,
        // and a value of zero seconds for reliable transports.
        // https://tools.ietf.org/html/rfc6026#section-8.4
        if (newState === transaction_state_1.TransactionState.Completed) {
            this.D = setTimeout(function () { return _this.timer_D(); }, timers_1.Timers.TIMER_D);
        }
        // The client transaction MUST transition to the "Accepted" state,
        // and Timer M MUST be started with a value of 64*T1.
        // https://tools.ietf.org/html/rfc6026#section-8.4
        if (newState === transaction_state_1.TransactionState.Accepted) {
            this.M = setTimeout(function () { return _this.timer_M(); }, timers_1.Timers.TIMER_M);
        }
        // Once the transaction is in the "Terminated" state, it MUST be destroyed immediately.
        // https://tools.ietf.org/html/rfc6026#section-8.7
        if (newState === transaction_state_1.TransactionState.Terminated) {
            this.dispose();
        }
        // Update state.
        this.setState(newState);
    };
    /**
     * When timer A fires, the client transaction MUST retransmit the
     * request by passing it to the transport layer, and MUST reset the
     * timer with a value of 2*T1.
     * When timer A fires 2*T1 seconds later, the request MUST be
     * retransmitted again (assuming the client transaction is still in this
     * state). This process MUST continue so that the request is
     * retransmitted with intervals that double after each transmission.
     * These retransmissions SHOULD only be done while the client
     * transaction is in the "Calling" state.
     * https://tools.ietf.org/html/rfc3261#section-17.1.1.2
     */
    InviteClientTransaction.prototype.timer_A = function () {
        // TODO
    };
    /**
     * If the client transaction is still in the "Calling" state when timer
     * B fires, the client transaction SHOULD inform the TU that a timeout
     * has occurred.  The client transaction MUST NOT generate an ACK.
     * https://tools.ietf.org/html/rfc3261#section-17.1.1.2
     */
    InviteClientTransaction.prototype.timer_B = function () {
        this.logger.debug("Timer B expired for INVITE client transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Calling) {
            this.onRequestTimeout();
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    /**
     * If Timer D fires while the client transaction is in the "Completed" state,
     * the client transaction MUST move to the "Terminated" state.
     * https://tools.ietf.org/html/rfc6026#section-8.4
     */
    InviteClientTransaction.prototype.timer_D = function () {
        this.logger.debug("Timer D expired for INVITE client transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Completed) {
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    /**
     * If Timer M fires while the client transaction is in the "Accepted"
     * state, the client transaction MUST move to the "Terminated" state.
     * https://tools.ietf.org/html/rfc6026#section-8.4
     */
    InviteClientTransaction.prototype.timer_M = function () {
        this.logger.debug("Timer M expired for INVITE client transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Accepted) {
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    return InviteClientTransaction;
}(client_transaction_1.ClientTransaction));
exports.InviteClientTransaction = InviteClientTransaction;


/***/ }),
/* 36 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Transaction state.
 * @public
 */
var TransactionState;
(function (TransactionState) {
    TransactionState["Accepted"] = "Accepted";
    TransactionState["Calling"] = "Calling";
    TransactionState["Completed"] = "Completed";
    TransactionState["Confirmed"] = "Confirmed";
    TransactionState["Proceeding"] = "Proceeding";
    TransactionState["Terminated"] = "Terminated";
    TransactionState["Trying"] = "Trying";
})(TransactionState = exports.TransactionState || (exports.TransactionState = {}));


/***/ }),
/* 37 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var timers_1 = __webpack_require__(26);
var server_transaction_1 = __webpack_require__(38);
var transaction_state_1 = __webpack_require__(36);
/**
 * INVITE Server Transaction.
 * @remarks
 * https://tools.ietf.org/html/rfc3261#section-17.2.1
 * @public
 */
var InviteServerTransaction = /** @class */ (function (_super) {
    tslib_1.__extends(InviteServerTransaction, _super);
    /**
     * Constructor.
     * Upon construction, a "100 Trying" reply will be immediately sent.
     * After construction the transaction will be in the "proceeding" state and the transaction
     * `id` will equal the branch parameter set in the Via header of the incoming request.
     * https://tools.ietf.org/html/rfc3261#section-17.2.1
     * @param request - Incoming INVITE request from the transport.
     * @param transport - The transport.
     * @param user - The transaction user.
     */
    function InviteServerTransaction(request, transport, user) {
        return _super.call(this, request, transport, user, transaction_state_1.TransactionState.Proceeding, "sip.transaction.ist") || this;
    }
    /**
     * Destructor.
     */
    InviteServerTransaction.prototype.dispose = function () {
        this.stopProgressExtensionTimer();
        if (this.H) {
            clearTimeout(this.H);
            this.H = undefined;
        }
        if (this.I) {
            clearTimeout(this.I);
            this.I = undefined;
        }
        if (this.L) {
            clearTimeout(this.L);
            this.L = undefined;
        }
        _super.prototype.dispose.call(this);
    };
    Object.defineProperty(InviteServerTransaction.prototype, "kind", {
        /** Transaction kind. Deprecated. */
        get: function () {
            return "ist";
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Receive requests from transport matching this transaction.
     * @param request - Request matching this transaction.
     */
    InviteServerTransaction.prototype.receiveRequest = function (request) {
        var _this = this;
        switch (this.state) {
            case transaction_state_1.TransactionState.Proceeding:
                // If a request retransmission is received while in the "Proceeding" state, the most
                // recent provisional response that was received from the TU MUST be passed to the
                // transport layer for retransmission.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                if (request.method === messages_1.C.INVITE) {
                    if (this.lastProvisionalResponse) {
                        this.send(this.lastProvisionalResponse).catch(function (error) {
                            _this.logTransportError(error, "Failed to send retransmission of provisional response.");
                        });
                    }
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Accepted:
                // While in the "Accepted" state, any retransmissions of the INVITE
                // received will match this transaction state machine and will be
                // absorbed by the machine without changing its state. These
                // retransmissions are not passed onto the TU.
                // https://tools.ietf.org/html/rfc6026#section-7.1
                if (request.method === messages_1.C.INVITE) {
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Completed:
                // Furthermore, while in the "Completed" state, if a request retransmission is
                // received, the server SHOULD pass the response to the transport for retransmission.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                if (request.method === messages_1.C.INVITE) {
                    if (!this.lastFinalResponse) {
                        throw new Error("Last final response undefined.");
                    }
                    this.send(this.lastFinalResponse).catch(function (error) {
                        _this.logTransportError(error, "Failed to send retransmission of final response.");
                    });
                    return;
                }
                // If an ACK is received while the server transaction is in the "Completed" state,
                // the server transaction MUST transition to the "Confirmed" state.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                if (request.method === messages_1.C.ACK) {
                    this.stateTransition(transaction_state_1.TransactionState.Confirmed);
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Confirmed:
                // The purpose of the "Confirmed" state is to absorb any additional ACK messages that arrive,
                // triggered from retransmissions of the final response.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                if (request.method === messages_1.C.INVITE || request.method === messages_1.C.ACK) {
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Terminated:
                // For good measure absorb any additional messages that arrive (should not happen).
                if (request.method === messages_1.C.INVITE || request.method === messages_1.C.ACK) {
                    return;
                }
                break;
            default:
                throw new Error("Invalid state " + this.state);
        }
        var message = "INVITE server transaction received unexpected " + request.method + " request while in state " + this.state + ".";
        this.logger.warn(message);
        return;
    };
    /**
     * Receive responses from TU for this transaction.
     * @param statusCode - Status code of response.
     * @param response - Response.
     */
    InviteServerTransaction.prototype.receiveResponse = function (statusCode, response) {
        var _this = this;
        if (statusCode < 100 || statusCode > 699) {
            throw new Error("Invalid status code " + statusCode);
        }
        switch (this.state) {
            case transaction_state_1.TransactionState.Proceeding:
                // The TU passes any number of provisional responses to the server
                // transaction. So long as the server transaction is in the
                // "Proceeding" state, each of these MUST be passed to the transport
                // layer for transmission. They are not sent reliably by the
                // transaction layer (they are not retransmitted by it) and do not cause
                // a change in the state of the server transaction.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                if (statusCode >= 100 && statusCode <= 199) {
                    this.lastProvisionalResponse = response;
                    // Start the progress extension timer only for a non-100 provisional response.
                    if (statusCode > 100) {
                        this.startProgressExtensionTimer(); // FIXME: remove
                    }
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send 1xx response.");
                    });
                    return;
                }
                // If, while in the "Proceeding" state, the TU passes a 2xx response
                // to the server transaction, the server transaction MUST pass this
                // response to the transport layer for transmission. It is not
                // retransmitted by the server transaction; retransmissions of 2xx
                // responses are handled by the TU. The server transaction MUST then
                // transition to the "Accepted" state.
                // https://tools.ietf.org/html/rfc6026#section-8.5
                if (statusCode >= 200 && statusCode <= 299) {
                    this.lastFinalResponse = response;
                    this.stateTransition(transaction_state_1.TransactionState.Accepted);
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send 2xx response.");
                    });
                    return;
                }
                // While in the "Proceeding" state, if the TU passes a response with
                // status code from 300 to 699 to the server transaction, the response
                // MUST be passed to the transport layer for transmission, and the state
                // machine MUST enter the "Completed" state.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                if (statusCode >= 300 && statusCode <= 699) {
                    this.lastFinalResponse = response;
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send non-2xx final response.");
                    });
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Accepted:
                // While in the "Accepted" state, if the TU passes a 2xx response,
                // the server transaction MUST pass the response to the transport layer for transmission.
                // https://tools.ietf.org/html/rfc6026#section-8.7
                if (statusCode >= 200 && statusCode <= 299) {
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send 2xx response.");
                    });
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Completed:
                break;
            case transaction_state_1.TransactionState.Confirmed:
                break;
            case transaction_state_1.TransactionState.Terminated:
                break;
            default:
                throw new Error("Invalid state " + this.state);
        }
        var message = "INVITE server transaction received unexpected " + statusCode + " response from TU while in state " + this.state + ".";
        this.logger.error(message);
        throw new Error(message);
    };
    /**
     * Retransmit the last 2xx response. This is a noop if not in the "accepted" state.
     */
    InviteServerTransaction.prototype.retransmitAcceptedResponse = function () {
        var _this = this;
        if (this.state === transaction_state_1.TransactionState.Accepted && this.lastFinalResponse) {
            this.send(this.lastFinalResponse).catch(function (error) {
                _this.logTransportError(error, "Failed to send 2xx response.");
            });
        }
    };
    /**
     * First, the procedures in [4] are followed, which attempt to deliver the response to a backup.
     * If those should all fail, based on the definition of failure in [4], the server transaction SHOULD
     * inform the TU that a failure has occurred, and MUST remain in the current state.
     * https://tools.ietf.org/html/rfc6026#section-8.8
     */
    InviteServerTransaction.prototype.onTransportError = function (error) {
        if (this.user.onTransportError) {
            this.user.onTransportError(error);
        }
    };
    /** For logging. */
    InviteServerTransaction.prototype.typeToString = function () {
        return "INVITE server transaction";
    };
    /**
     * Execute a state transition.
     * @param newState - New state.
     */
    InviteServerTransaction.prototype.stateTransition = function (newState) {
        var _this = this;
        // Assert valid state transitions.
        var invalidStateTransition = function () {
            throw new Error("Invalid state transition from " + _this.state + " to " + newState);
        };
        switch (newState) {
            case transaction_state_1.TransactionState.Proceeding:
                invalidStateTransition();
                break;
            case transaction_state_1.TransactionState.Accepted:
            case transaction_state_1.TransactionState.Completed:
                if (this.state !== transaction_state_1.TransactionState.Proceeding) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Confirmed:
                if (this.state !== transaction_state_1.TransactionState.Completed) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Terminated:
                if (this.state !== transaction_state_1.TransactionState.Accepted &&
                    this.state !== transaction_state_1.TransactionState.Completed &&
                    this.state !== transaction_state_1.TransactionState.Confirmed) {
                    invalidStateTransition();
                }
                break;
            default:
                invalidStateTransition();
        }
        // On any state transition, stop resending provisonal responses
        this.stopProgressExtensionTimer();
        // The purpose of the "Accepted" state is to absorb retransmissions of an accepted INVITE request.
        // Any such retransmissions are absorbed entirely within the server transaction.
        // They are not passed up to the TU since any downstream UAS cores that accepted the request have
        // taken responsibility for reliability and will already retransmit their 2xx responses if necessary.
        // https://tools.ietf.org/html/rfc6026#section-8.7
        if (newState === transaction_state_1.TransactionState.Accepted) {
            this.L = setTimeout(function () { return _this.timer_L(); }, timers_1.Timers.TIMER_L);
        }
        // When the "Completed" state is entered, timer H MUST be set to fire in 64*T1 seconds for all transports.
        // Timer H determines when the server transaction abandons retransmitting the response.
        // If an ACK is received while the server transaction is in the "Completed" state,
        // the server transaction MUST transition to the "Confirmed" state.
        // https://tools.ietf.org/html/rfc3261#section-17.2.1
        if (newState === transaction_state_1.TransactionState.Completed) {
            // FIXME: Missing timer G for unreliable transports.
            this.H = setTimeout(function () { return _this.timer_H(); }, timers_1.Timers.TIMER_H);
        }
        // The purpose of the "Confirmed" state is to absorb any additional ACK messages that arrive,
        // triggered from retransmissions of the final response. When this state is entered, timer I
        // is set to fire in T4 seconds for unreliable transports, and zero seconds for reliable
        // transports. Once timer I fires, the server MUST transition to the "Terminated" state.
        // https://tools.ietf.org/html/rfc3261#section-17.2.1
        if (newState === transaction_state_1.TransactionState.Confirmed) {
            // FIXME: This timer is not getting set correctly for unreliable transports.
            this.I = setTimeout(function () { return _this.timer_I(); }, timers_1.Timers.TIMER_I);
        }
        // Once the transaction is in the "Terminated" state, it MUST be destroyed immediately.
        // https://tools.ietf.org/html/rfc6026#section-8.7
        if (newState === transaction_state_1.TransactionState.Terminated) {
            this.dispose();
        }
        // Update state.
        this.setState(newState);
    };
    /**
     * FIXME: UAS Provisional Retransmission Timer. See RFC 3261 Section 13.3.1.1
     * This is in the wrong place. This is not a transaction level thing. It's a UAS level thing.
     */
    InviteServerTransaction.prototype.startProgressExtensionTimer = function () {
        var _this = this;
        // Start the progress extension timer only for the first non-100 provisional response.
        if (this.progressExtensionTimer === undefined) {
            this.progressExtensionTimer = setInterval(function () {
                _this.logger.debug("Progress extension timer expired for INVITE server transaction " + _this.id + ".");
                if (!_this.lastProvisionalResponse) {
                    throw new Error("Last provisional response undefined.");
                }
                _this.send(_this.lastProvisionalResponse).catch(function (error) {
                    _this.logTransportError(error, "Failed to send retransmission of provisional response.");
                });
            }, timers_1.Timers.PROVISIONAL_RESPONSE_INTERVAL);
        }
    };
    /**
     * FIXME: UAS Provisional Retransmission Timer id. See RFC 3261 Section 13.3.1.1
     * This is in the wrong place. This is not a transaction level thing. It's a UAS level thing.
     */
    InviteServerTransaction.prototype.stopProgressExtensionTimer = function () {
        if (this.progressExtensionTimer !== undefined) {
            clearInterval(this.progressExtensionTimer);
            this.progressExtensionTimer = undefined;
        }
    };
    /**
     * While in the "Proceeding" state, if the TU passes a response with status code
     * from 300 to 699 to the server transaction, the response MUST be passed to the
     * transport layer for transmission, and the state machine MUST enter the "Completed" state.
     * For unreliable transports, timer G is set to fire in T1 seconds, and is not set to fire for
     * reliable transports. If timer G fires, the response is passed to the transport layer once
     * more for retransmission, and timer G is set to fire in MIN(2*T1, T2) seconds. From then on,
     * when timer G fires, the response is passed to the transport again for transmission, and
     * timer G is reset with a value that doubles, unless that value exceeds T2, in which case
     * it is reset with the value of T2.
     * https://tools.ietf.org/html/rfc3261#section-17.2.1
     */
    InviteServerTransaction.prototype.timer_G = function () {
        // TODO
    };
    /**
     * If timer H fires while in the "Completed" state, it implies that the ACK was never received.
     * In this case, the server transaction MUST transition to the "Terminated" state, and MUST
     * indicate to the TU that a transaction failure has occurred.
     * https://tools.ietf.org/html/rfc3261#section-17.2.1
     */
    InviteServerTransaction.prototype.timer_H = function () {
        this.logger.debug("Timer H expired for INVITE server transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Completed) {
            this.logger.warn("ACK to negative final response was never received, terminating transaction.");
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    /**
     * Once timer I fires, the server MUST transition to the "Terminated" state.
     * https://tools.ietf.org/html/rfc3261#section-17.2.1
     */
    InviteServerTransaction.prototype.timer_I = function () {
        this.logger.debug("Timer I expired for INVITE server transaction " + this.id + ".");
        this.stateTransition(transaction_state_1.TransactionState.Terminated);
    };
    /**
     * When Timer L fires and the state machine is in the "Accepted" state, the machine MUST
     * transition to the "Terminated" state. Once the transaction is in the "Terminated" state,
     * it MUST be destroyed immediately. Timer L reflects the amount of time the server
     * transaction could receive 2xx responses for retransmission from the
     * TU while it is waiting to receive an ACK.
     * https://tools.ietf.org/html/rfc6026#section-7.1
     * https://tools.ietf.org/html/rfc6026#section-8.7
     */
    InviteServerTransaction.prototype.timer_L = function () {
        this.logger.debug("Timer L expired for INVITE server transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Accepted) {
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    return InviteServerTransaction;
}(server_transaction_1.ServerTransaction));
exports.InviteServerTransaction = InviteServerTransaction;


/***/ }),
/* 38 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transaction_1 = __webpack_require__(29);
/**
 * Server Transaction.
 * @remarks
 * The server transaction is responsible for the delivery of requests to
 * the TU and the reliable transmission of responses.  It accomplishes
 * this through a state machine.  Server transactions are created by the
 * core when a request is received, and transaction handling is desired
 * for that request (this is not always the case).
 * https://tools.ietf.org/html/rfc3261#section-17.2
 * @public
 */
var ServerTransaction = /** @class */ (function (_super) {
    tslib_1.__extends(ServerTransaction, _super);
    function ServerTransaction(_request, transport, user, state, loggerCategory) {
        var _this = _super.call(this, transport, user, _request.viaBranch, state, loggerCategory) || this;
        _this._request = _request;
        _this.user = user;
        return _this;
    }
    Object.defineProperty(ServerTransaction.prototype, "request", {
        /** The incoming request the transaction handling. */
        get: function () {
            return this._request;
        },
        enumerable: true,
        configurable: true
    });
    return ServerTransaction;
}(transaction_1.Transaction));
exports.ServerTransaction = ServerTransaction;


/***/ }),
/* 39 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var timers_1 = __webpack_require__(26);
var client_transaction_1 = __webpack_require__(28);
var transaction_state_1 = __webpack_require__(36);
/**
 * Non-INVITE Client Transaction.
 * @remarks
 * Non-INVITE transactions do not make use of ACK.
 * They are simple request-response interactions.
 * https://tools.ietf.org/html/rfc3261#section-17.1.2
 * @public
 */
var NonInviteClientTransaction = /** @class */ (function (_super) {
    tslib_1.__extends(NonInviteClientTransaction, _super);
    /**
     * Constructor
     * Upon construction, the outgoing request's Via header is updated by calling `setViaHeader`.
     * Then `toString` is called on the outgoing request and the message is sent via the transport.
     * After construction the transaction will be in the "calling" state and the transaction id
     * will equal the branch parameter set in the Via header of the outgoing request.
     * https://tools.ietf.org/html/rfc3261#section-17.1.2
     * @param request - The outgoing Non-INVITE request.
     * @param transport - The transport.
     * @param user - The transaction user.
     */
    function NonInviteClientTransaction(request, transport, user) {
        var _this = _super.call(this, request, transport, user, transaction_state_1.TransactionState.Trying, "sip.transaction.nict") || this;
        // FIXME: Timer E for unreliable transports not implemented.
        //
        // The "Trying" state is entered when the TU initiates a new client
        // transaction with a request.  When entering this state, the client
        // transaction SHOULD set timer F to fire in 64*T1 seconds. The request
        // MUST be passed to the transport layer for transmission.
        // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
        _this.F = setTimeout(function () { return _this.timer_F(); }, timers_1.Timers.TIMER_F);
        _this.send(request.toString()).catch(function (error) {
            _this.logTransportError(error, "Failed to send initial outgoing request.");
        });
        return _this;
    }
    /**
     * Destructor.
     */
    NonInviteClientTransaction.prototype.dispose = function () {
        if (this.F) {
            clearTimeout(this.F);
            this.F = undefined;
        }
        if (this.K) {
            clearTimeout(this.K);
            this.K = undefined;
        }
        _super.prototype.dispose.call(this);
    };
    Object.defineProperty(NonInviteClientTransaction.prototype, "kind", {
        /** Transaction kind. Deprecated. */
        get: function () {
            return "nict";
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Handler for incoming responses from the transport which match this transaction.
     * @param response - The incoming response.
     */
    NonInviteClientTransaction.prototype.receiveResponse = function (response) {
        var statusCode = response.statusCode;
        if (!statusCode || statusCode < 100 || statusCode > 699) {
            throw new Error("Invalid status code " + statusCode);
        }
        switch (this.state) {
            case transaction_state_1.TransactionState.Trying:
                // If a provisional response is received while in the "Trying" state, the
                // response MUST be passed to the TU, and then the client transaction
                // SHOULD move to the "Proceeding" state.
                // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
                if (statusCode >= 100 && statusCode <= 199) {
                    this.stateTransition(transaction_state_1.TransactionState.Proceeding);
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                // If a final response (status codes 200-699) is received while in the
                // "Trying" state, the response MUST be passed to the TU, and the
                // client transaction MUST transition to the "Completed" state.
                // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
                if (statusCode >= 200 && statusCode <= 699) {
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    if (statusCode === 408) {
                        this.onRequestTimeout();
                        return;
                    }
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Proceeding:
                // If a provisional response is received while in the "Proceeding" state,
                // the response MUST be passed to the TU. (From Figure 6)
                // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
                if (statusCode >= 100 && statusCode <= 199) {
                    if (this.user.receiveResponse) {
                        return this.user.receiveResponse(response);
                    }
                }
                // If a final response (status codes 200-699) is received while in the
                // "Proceeding" state, the response MUST be passed to the TU, and the
                // client transaction MUST transition to the "Completed" state.
                // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
                if (statusCode >= 200 && statusCode <= 699) {
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    if (statusCode === 408) {
                        this.onRequestTimeout();
                        return;
                    }
                    if (this.user.receiveResponse) {
                        this.user.receiveResponse(response);
                    }
                    return;
                }
            case transaction_state_1.TransactionState.Completed:
                // The "Completed" state exists to buffer any additional response
                // retransmissions that may be received (which is why the client
                // transaction remains there only for unreliable transports).
                // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
                return;
            case transaction_state_1.TransactionState.Terminated:
                // For good measure just absorb additional response retransmissions.
                return;
            default:
                throw new Error("Invalid state " + this.state);
        }
        var message = "Non-INVITE client transaction received unexpected " + statusCode + " response while in state " + this.state + ".";
        this.logger.warn(message);
        return;
    };
    /**
     * The client transaction SHOULD inform the TU that a transport failure has occurred,
     * and the client transaction SHOULD transition directly to the "Terminated" state.
     * The TU will handle the failover mechanisms described in [4].
     * https://tools.ietf.org/html/rfc3261#section-17.1.4
     * @param error - Trasnsport error
     */
    NonInviteClientTransaction.prototype.onTransportError = function (error) {
        if (this.user.onTransportError) {
            this.user.onTransportError(error);
        }
        this.stateTransition(transaction_state_1.TransactionState.Terminated, true);
    };
    /** For logging. */
    NonInviteClientTransaction.prototype.typeToString = function () {
        return "non-INVITE client transaction";
    };
    /**
     * Execute a state transition.
     * @param newState - New state.
     */
    NonInviteClientTransaction.prototype.stateTransition = function (newState, dueToTransportError) {
        var _this = this;
        if (dueToTransportError === void 0) { dueToTransportError = false; }
        // Assert valid state transitions.
        var invalidStateTransition = function () {
            throw new Error("Invalid state transition from " + _this.state + " to " + newState);
        };
        switch (newState) {
            case transaction_state_1.TransactionState.Trying:
                invalidStateTransition();
                break;
            case transaction_state_1.TransactionState.Proceeding:
                if (this.state !== transaction_state_1.TransactionState.Trying) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Completed:
                if (this.state !== transaction_state_1.TransactionState.Trying &&
                    this.state !== transaction_state_1.TransactionState.Proceeding) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Terminated:
                if (this.state !== transaction_state_1.TransactionState.Trying &&
                    this.state !== transaction_state_1.TransactionState.Proceeding &&
                    this.state !== transaction_state_1.TransactionState.Completed) {
                    if (!dueToTransportError) {
                        invalidStateTransition();
                    }
                }
                break;
            default:
                invalidStateTransition();
        }
        // Once the client transaction enters the "Completed" state, it MUST set
        // Timer K to fire in T4 seconds for unreliable transports, and zero
        // seconds for reliable transports  The "Completed" state exists to
        // buffer any additional response retransmissions that may be received
        // (which is why the client transaction remains there only for unreliable transports).
        // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
        if (newState === transaction_state_1.TransactionState.Completed) {
            if (this.F) {
                clearTimeout(this.F);
                this.F = undefined;
            }
            this.K = setTimeout(function () { return _this.timer_K(); }, timers_1.Timers.TIMER_K);
        }
        // Once the transaction is in the terminated state, it MUST be destroyed immediately.
        // https://tools.ietf.org/html/rfc3261#section-17.1.2.2
        if (newState === transaction_state_1.TransactionState.Terminated) {
            this.dispose();
        }
        // Update state.
        this.setState(newState);
    };
    /**
     * If Timer F fires while the client transaction is still in the
     * "Trying" state, the client transaction SHOULD inform the TU about the
     * timeout, and then it SHOULD enter the "Terminated" state.
     * If timer F fires while in the "Proceeding" state, the TU MUST be informed of
     * a timeout, and the client transaction MUST transition to the terminated state.
     * https://tools.ietf.org/html/rfc3261#section-17.1.2.2
     */
    NonInviteClientTransaction.prototype.timer_F = function () {
        this.logger.debug("Timer F expired for non-INVITE client transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Trying || this.state === transaction_state_1.TransactionState.Proceeding) {
            this.onRequestTimeout();
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    /**
     * If Timer K fires while in this (COMPLETED) state, the client transaction
     * MUST transition to the "Terminated" state.
     * https://tools.ietf.org/html/rfc3261#section-17.1.2.2
     */
    NonInviteClientTransaction.prototype.timer_K = function () {
        if (this.state === transaction_state_1.TransactionState.Completed) {
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    return NonInviteClientTransaction;
}(client_transaction_1.ClientTransaction));
exports.NonInviteClientTransaction = NonInviteClientTransaction;


/***/ }),
/* 40 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var timers_1 = __webpack_require__(26);
var server_transaction_1 = __webpack_require__(38);
var transaction_state_1 = __webpack_require__(36);
/**
 * Non-INVITE Server Transaction.
 * @remarks
 * https://tools.ietf.org/html/rfc3261#section-17.2.2
 * @public
 */
var NonInviteServerTransaction = /** @class */ (function (_super) {
    tslib_1.__extends(NonInviteServerTransaction, _super);
    /**
     * Constructor.
     * After construction the transaction will be in the "trying": state and the transaction
     * `id` will equal the branch parameter set in the Via header of the incoming request.
     * https://tools.ietf.org/html/rfc3261#section-17.2.2
     * @param request - Incoming Non-INVITE request from the transport.
     * @param transport - The transport.
     * @param user - The transaction user.
     */
    function NonInviteServerTransaction(request, transport, user) {
        return _super.call(this, request, transport, user, transaction_state_1.TransactionState.Trying, "sip.transaction.nist") || this;
    }
    /**
     * Destructor.
     */
    NonInviteServerTransaction.prototype.dispose = function () {
        if (this.J) {
            clearTimeout(this.J);
            this.J = undefined;
        }
        _super.prototype.dispose.call(this);
    };
    Object.defineProperty(NonInviteServerTransaction.prototype, "kind", {
        /** Transaction kind. Deprecated. */
        get: function () {
            return "nist";
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Receive requests from transport matching this transaction.
     * @param request - Request matching this transaction.
     */
    NonInviteServerTransaction.prototype.receiveRequest = function (request) {
        var _this = this;
        switch (this.state) {
            case transaction_state_1.TransactionState.Trying:
                // Once in the "Trying" state, any further request retransmissions are discarded.
                // https://tools.ietf.org/html/rfc3261#section-17.2.2
                break;
            case transaction_state_1.TransactionState.Proceeding:
                // If a retransmission of the request is received while in the "Proceeding" state,
                // the most recently sent provisional response MUST be passed to the transport layer for retransmission.
                // https://tools.ietf.org/html/rfc3261#section-17.2.2
                if (!this.lastResponse) {
                    throw new Error("Last response undefined.");
                }
                this.send(this.lastResponse).catch(function (error) {
                    _this.logTransportError(error, "Failed to send retransmission of provisional response.");
                });
                break;
            case transaction_state_1.TransactionState.Completed:
                // While in the "Completed" state, the server transaction MUST pass the final response to the transport
                // layer for retransmission whenever a retransmission of the request is received. Any other final responses
                // passed by the TU to the server transaction MUST be discarded while in the "Completed" state.
                // https://tools.ietf.org/html/rfc3261#section-17.2.2
                if (!this.lastResponse) {
                    throw new Error("Last response undefined.");
                }
                this.send(this.lastResponse).catch(function (error) {
                    _this.logTransportError(error, "Failed to send retransmission of final response.");
                });
                break;
            case transaction_state_1.TransactionState.Terminated:
                break;
            default:
                throw new Error("Invalid state " + this.state);
        }
    };
    /**
     * Receive responses from TU for this transaction.
     * @param statusCode - Status code of repsonse. 101-199 not allowed per RFC 4320.
     * @param response - Response to send.
     */
    NonInviteServerTransaction.prototype.receiveResponse = function (statusCode, response) {
        var _this = this;
        if (statusCode < 100 || statusCode > 699) {
            throw new Error("Invalid status code " + statusCode);
        }
        // An SIP element MUST NOT send any provisional response with a
        // Status-Code other than 100 to a non-INVITE request.
        // An SIP element MUST NOT respond to a non-INVITE request with a
        // Status-Code of 100 over any unreliable transport, such as UDP,
        // before the amount of time it takes a client transaction's Timer E to be reset to T2.
        // An SIP element MAY respond to a non-INVITE request with a
        // Status-Code of 100 over a reliable transport at any time.
        // https://tools.ietf.org/html/rfc4320#section-4.1
        if (statusCode > 100 && statusCode <= 199) {
            throw new Error("Provisional response other than 100 not allowed.");
        }
        switch (this.state) {
            case transaction_state_1.TransactionState.Trying:
                // While in the "Trying" state, if the TU passes a provisional response
                // to the server transaction, the server transaction MUST enter the "Proceeding" state.
                // The response MUST be passed to the transport layer for transmission.
                // https://tools.ietf.org/html/rfc3261#section-17.2.2
                this.lastResponse = response;
                if (statusCode >= 100 && statusCode < 200) {
                    this.stateTransition(transaction_state_1.TransactionState.Proceeding);
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send provisional response.");
                    });
                    return;
                }
                if (statusCode >= 200 && statusCode <= 699) {
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send final response.");
                    });
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Proceeding:
                // Any further provisional responses that are received from the TU while
                // in the "Proceeding" state MUST be passed to the transport layer for transmission.
                // If the TU passes a final response (status codes 200-699) to the server while in
                // the "Proceeding" state, the transaction MUST enter the "Completed" state, and
                // the response MUST be passed to the transport layer for transmission.
                // https://tools.ietf.org/html/rfc3261#section-17.2.2
                this.lastResponse = response;
                if (statusCode >= 200 && statusCode <= 699) {
                    this.stateTransition(transaction_state_1.TransactionState.Completed);
                    this.send(response).catch(function (error) {
                        _this.logTransportError(error, "Failed to send final response.");
                    });
                    return;
                }
                break;
            case transaction_state_1.TransactionState.Completed:
                // Any other final responses passed by the TU to the server
                // transaction MUST be discarded while in the "Completed" state.
                // https://tools.ietf.org/html/rfc3261#section-17.2.2
                return;
            case transaction_state_1.TransactionState.Terminated:
                break;
            default:
                throw new Error("Invalid state " + this.state);
        }
        var message = "Non-INVITE server transaction received unexpected " + statusCode + " response from TU while in state " + this.state + ".";
        this.logger.error(message);
        throw new Error(message);
    };
    /**
     * First, the procedures in [4] are followed, which attempt to deliver the response to a backup.
     * If those should all fail, based on the definition of failure in [4], the server transaction SHOULD
     * inform the TU that a failure has occurred, and SHOULD transition to the terminated state.
     * https://tools.ietf.org/html/rfc3261#section-17.2.4
     */
    NonInviteServerTransaction.prototype.onTransportError = function (error) {
        if (this.user.onTransportError) {
            this.user.onTransportError(error);
        }
        this.stateTransition(transaction_state_1.TransactionState.Terminated, true);
    };
    /** For logging. */
    NonInviteServerTransaction.prototype.typeToString = function () {
        return "non-INVITE server transaction";
    };
    NonInviteServerTransaction.prototype.stateTransition = function (newState, dueToTransportError) {
        var _this = this;
        if (dueToTransportError === void 0) { dueToTransportError = false; }
        // Assert valid state transitions.
        var invalidStateTransition = function () {
            throw new Error("Invalid state transition from " + _this.state + " to " + newState);
        };
        switch (newState) {
            case transaction_state_1.TransactionState.Trying:
                invalidStateTransition();
                break;
            case transaction_state_1.TransactionState.Proceeding:
                if (this.state !== transaction_state_1.TransactionState.Trying) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Completed:
                if (this.state !== transaction_state_1.TransactionState.Trying && this.state !== transaction_state_1.TransactionState.Proceeding) {
                    invalidStateTransition();
                }
                break;
            case transaction_state_1.TransactionState.Terminated:
                if (this.state !== transaction_state_1.TransactionState.Proceeding && this.state !== transaction_state_1.TransactionState.Completed) {
                    if (!dueToTransportError) {
                        invalidStateTransition();
                    }
                }
                break;
            default:
                invalidStateTransition();
        }
        // When the server transaction enters the "Completed" state, it MUST set Timer J to fire
        // in 64*T1 seconds for unreliable transports, and zero seconds for reliable transports.
        // https://tools.ietf.org/html/rfc3261#section-17.2.2
        if (newState === transaction_state_1.TransactionState.Completed) {
            this.J = setTimeout(function () { return _this.timer_J(); }, timers_1.Timers.TIMER_J);
        }
        // The server transaction MUST be destroyed the instant it enters the "Terminated" state.
        // https://tools.ietf.org/html/rfc3261#section-17.2.2
        if (newState === transaction_state_1.TransactionState.Terminated) {
            this.dispose();
        }
        this.setState(newState);
    };
    /**
     * The server transaction remains in this state until Timer J fires,
     * at which point it MUST transition to the "Terminated" state.
     * https://tools.ietf.org/html/rfc3261#section-17.2.2
     */
    NonInviteServerTransaction.prototype.timer_J = function () {
        this.logger.debug("Timer J expired for NON-INVITE server transaction " + this.id + ".");
        if (this.state === transaction_state_1.TransactionState.Completed) {
            this.stateTransition(transaction_state_1.TransactionState.Terminated);
        }
    };
    return NonInviteServerTransaction;
}(server_transaction_1.ServerTransaction));
exports.NonInviteServerTransaction = NonInviteServerTransaction;


/***/ }),
/* 41 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * BYE UAC.
 * @public
 */
var ByeUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(ByeUserAgentClient, _super);
    function ByeUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.BYE, options);
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        dialog.dispose();
        return _this;
    }
    return ByeUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.ByeUserAgentClient = ByeUserAgentClient;


/***/ }),
/* 42 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
/**
 * User Agent Client (UAC).
 * @remarks
 * A user agent client is a logical entity
 * that creates a new request, and then uses the client
 * transaction state machinery to send it.  The role of UAC lasts
 * only for the duration of that transaction.  In other words, if
 * a piece of software initiates a request, it acts as a UAC for
 * the duration of that transaction.  If it receives a request
 * later, it assumes the role of a user agent server for the
 * processing of that transaction.
 * https://tools.ietf.org/html/rfc3261#section-6
 * @public
 */
var UserAgentClient = /** @class */ (function () {
    function UserAgentClient(transactionConstructor, core, message, delegate) {
        this.transactionConstructor = transactionConstructor;
        this.core = core;
        this.message = message;
        this.delegate = delegate;
        this.challenged = false;
        this.stale = false;
        this.logger = this.loggerFactory.getLogger("sip.user-agent-client");
        this.init();
    }
    UserAgentClient.prototype.dispose = function () {
        this.transaction.dispose();
    };
    Object.defineProperty(UserAgentClient.prototype, "loggerFactory", {
        get: function () {
            return this.core.loggerFactory;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentClient.prototype, "transaction", {
        /** The transaction associated with this request. */
        get: function () {
            if (!this._transaction) {
                throw new Error("Transaction undefined.");
            }
            return this._transaction;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Since requests other than INVITE are responded to immediately, sending a
     * CANCEL for a non-INVITE request would always create a race condition.
     * A CANCEL request SHOULD NOT be sent to cancel a request other than INVITE.
     * https://tools.ietf.org/html/rfc3261#section-9.1
     * @param options - Cancel options bucket.
     */
    UserAgentClient.prototype.cancel = function (reason, options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (!this.transaction) {
            throw new Error("Transaction undefined.");
        }
        if (!this.message.to) {
            throw new Error("To undefined.");
        }
        if (!this.message.from) {
            throw new Error("From undefined.");
        }
        // The following procedures are used to construct a CANCEL request.  The
        // Request-URI, Call-ID, To, the numeric part of CSeq, and From header
        // fields in the CANCEL request MUST be identical to those in the
        // request being cancelled, including tags.  A CANCEL constructed by a
        // client MUST have only a single Via header field value matching the
        // top Via value in the request being cancelled.  Using the same values
        // for these header fields allows the CANCEL to be matched with the
        // request it cancels (Section 9.2 indicates how such matching occurs).
        // However, the method part of the CSeq header field MUST have a value
        // of CANCEL.  This allows it to be identified and processed as a
        // transaction in its own right (See Section 17).
        // https://tools.ietf.org/html/rfc3261#section-9.1
        var message = this.core.makeOutgoingRequestMessage(messages_1.C.CANCEL, this.message.ruri, this.message.from.uri, this.message.to.uri, {
            toTag: this.message.toTag,
            fromTag: this.message.fromTag,
            callId: this.message.callId,
            cseq: this.message.cseq
        }, options.extraHeaders);
        // TODO: Revisit this.
        // The CANCEL needs to use the same branch parameter so that
        // it matches the INVITE transaction, but this is a hacky way to do this.
        // Or at the very least not well documented. If the the branch parameter
        // is set on the outgoing request, the transaction will use it.
        // Otherwise the transaction will make a new one.
        message.branch = this.message.branch;
        if (this.message.headers.Route) {
            message.headers.Route = this.message.headers.Route;
        }
        if (reason) {
            message.setHeader("Reason", reason);
        }
        // If no provisional response has been received, the CANCEL request MUST
        // NOT be sent; rather, the client MUST wait for the arrival of a
        // provisional response before sending the request. If the original
        // request has generated a final response, the CANCEL SHOULD NOT be
        // sent, as it is an effective no-op, since CANCEL has no effect on
        // requests that have already generated a final response.
        // https://tools.ietf.org/html/rfc3261#section-9.1
        if (this.transaction.state === transactions_1.TransactionState.Proceeding) {
            var uac = new UserAgentClient(transactions_1.NonInviteClientTransaction, this.core, message);
        }
        else {
            this.transaction.once("stateChanged", function () {
                if (_this.transaction && _this.transaction.state === transactions_1.TransactionState.Proceeding) {
                    var uac = new UserAgentClient(transactions_1.NonInviteClientTransaction, _this.core, message);
                }
            });
        }
        return message;
    };
    /**
     * If a 401 (Unauthorized) or 407 (Proxy Authentication Required)
     * response is received, the UAC SHOULD follow the authorization
     * procedures of Section 22.2 and Section 22.3 to retry the request with
     * credentials.
     * https://tools.ietf.org/html/rfc3261#section-8.1.3.5
     * 22 Usage of HTTP Authentication
     * https://tools.ietf.org/html/rfc3261#section-22
     * 22.1 Framework
     * https://tools.ietf.org/html/rfc3261#section-22.1
     * 22.2 User-to-User Authentication
     * https://tools.ietf.org/html/rfc3261#section-22.2
     * 22.3 Proxy-to-User Authentication
     * https://tools.ietf.org/html/rfc3261#section-22.3
     *
     * FIXME: This "guard for and retry the request with credentials"
     * implementation is not complete and at best minimally passable.
     * @param response - The incoming response to guard.
     * @returns True if the program execution is to continue in the branch in question.
     *          Otherwise the request is retried with credentials and current request processing must stop.
     */
    UserAgentClient.prototype.authenticationGuard = function (message) {
        var statusCode = message.statusCode;
        if (!statusCode) {
            throw new Error("Response status code undefined.");
        }
        // If a 401 (Unauthorized) or 407 (Proxy Authentication Required)
        // response is received, the UAC SHOULD follow the authorization
        // procedures of Section 22.2 and Section 22.3 to retry the request with
        // credentials.
        // https://tools.ietf.org/html/rfc3261#section-8.1.3.5
        if (statusCode !== 401 && statusCode !== 407) {
            return true;
        }
        // Get and parse the appropriate WWW-Authenticate or Proxy-Authenticate header.
        var challenge;
        var authorizationHeaderName;
        if (statusCode === 401) {
            challenge = message.parseHeader("www-authenticate");
            authorizationHeaderName = "authorization";
        }
        else {
            challenge = message.parseHeader("proxy-authenticate");
            authorizationHeaderName = "proxy-authorization";
        }
        // Verify it seems a valid challenge.
        if (!challenge) {
            this.logger.warn(statusCode + " with wrong or missing challenge, cannot authenticate");
            return true;
        }
        // Avoid infinite authentications.
        if (this.challenged && (this.stale || challenge.stale !== true)) {
            this.logger.warn(statusCode + " apparently in authentication loop, cannot authenticate");
            return true;
        }
        // Get credentials.
        if (!this.credentials) {
            this.credentials = this.core.configuration.authenticationFactory();
            if (!this.credentials) {
                this.logger.warn("Unable to obtain credentials, cannot authenticate");
                return true;
            }
        }
        // Verify that the challenge is really valid.
        if (!this.credentials.authenticate(this.message, challenge)) {
            return true;
        }
        this.challenged = true;
        if (challenge.stale) {
            this.stale = true;
        }
        var cseq = this.message.cseq += 1;
        this.message.setHeader("cseq", cseq + " " + this.message.method);
        this.message.setHeader(authorizationHeaderName, this.credentials.toString());
        // Calling init (again) will swap out our existing client transaction with a new one.
        // FIXME: HACK: An assumption is being made here that there is nothing that needs to
        // be cleaned up beyond the client transaction which is being replaced. For example,
        // it is assumed that no early dialogs have been created.
        this.init();
        return false;
    };
    /**
     * 8.1.3.1 Transaction Layer Errors
     * In some cases, the response returned by the transaction layer will
     * not be a SIP message, but rather a transaction layer error.  When a
     * timeout error is received from the transaction layer, it MUST be
     * treated as if a 408 (Request Timeout) status code has been received.
     * If a fatal transport error is reported by the transport layer
     * (generally, due to fatal ICMP errors in UDP or connection failures in
     * TCP), the condition MUST be treated as a 503 (Service Unavailable)
     * status code.
     * https://tools.ietf.org/html/rfc3261#section-8.1.3.1
     */
    UserAgentClient.prototype.onRequestTimeout = function () {
        this.logger.warn("User agent client request timed out. Generating internal 408 Request Timeout.");
        var message = new messages_1.IncomingResponseMessage();
        message.statusCode = 408;
        message.reasonPhrase = "Request Timeout";
        this.receiveResponse(message);
        return;
    };
    /**
     * 8.1.3.1 Transaction Layer Errors
     * In some cases, the response returned by the transaction layer will
     * not be a SIP message, but rather a transaction layer error.  When a
     * timeout error is received from the transaction layer, it MUST be
     * treated as if a 408 (Request Timeout) status code has been received.
     * If a fatal transport error is reported by the transport layer
     * (generally, due to fatal ICMP errors in UDP or connection failures in
     * TCP), the condition MUST be treated as a 503 (Service Unavailable)
     * status code.
     * https://tools.ietf.org/html/rfc3261#section-8.1.3.1
     * @param error - Transport error
     */
    UserAgentClient.prototype.onTransportError = function (error) {
        this.logger.error(error.message);
        this.logger.error("User agent client request transport error. Generating internal 503 Service Unavailable.");
        var message = new messages_1.IncomingResponseMessage();
        message.statusCode = 503;
        message.reasonPhrase = "Service Unavailable";
        this.receiveResponse(message);
    };
    /**
     * Receive a response from the transaction layer.
     * @param message - Incoming response message.
     */
    UserAgentClient.prototype.receiveResponse = function (message) {
        if (!this.authenticationGuard(message)) {
            return;
        }
        var statusCode = message.statusCode ? message.statusCode.toString() : "";
        if (!statusCode) {
            throw new Error("Response status code undefined.");
        }
        switch (true) {
            case /^100$/.test(statusCode):
                if (this.delegate && this.delegate.onTrying) {
                    this.delegate.onTrying({ message: message });
                }
                break;
            case /^1[0-9]{2}$/.test(statusCode):
                if (this.delegate && this.delegate.onProgress) {
                    this.delegate.onProgress({ message: message });
                }
                break;
            case /^2[0-9]{2}$/.test(statusCode):
                if (this.delegate && this.delegate.onAccept) {
                    this.delegate.onAccept({ message: message });
                }
                break;
            case /^3[0-9]{2}$/.test(statusCode):
                if (this.delegate && this.delegate.onRedirect) {
                    this.delegate.onRedirect({ message: message });
                }
                break;
            case /^[4-6][0-9]{2}$/.test(statusCode):
                if (this.delegate && this.delegate.onReject) {
                    this.delegate.onReject({ message: message });
                }
                break;
            default:
                throw new Error("Invalid status code " + statusCode);
        }
    };
    UserAgentClient.prototype.init = function () {
        var _this = this;
        // We are the transaction user.
        var user = {
            loggerFactory: this.loggerFactory,
            onRequestTimeout: function () { return _this.onRequestTimeout(); },
            onStateChange: function (newState) {
                if (newState === transactions_1.TransactionState.Terminated) {
                    // Remove the terminated transaction from the core.
                    _this.core.userAgentClients.delete(userAgentClientId);
                    // FIXME: HACK: Our transaction may have been swapped out with a new one
                    // post authentication (see above), so make sure to only to dispose of
                    // ourselves if this terminating transaction is our current transaction.
                    if (transaction === _this._transaction) {
                        _this.dispose();
                    }
                }
            },
            onTransportError: function (error) { return _this.onTransportError(error); },
            receiveResponse: function (message) { return _this.receiveResponse(message); }
        };
        // Create a new transaction with us as the user.
        var transaction = new this.transactionConstructor(this.message, this.core.transport, user);
        this._transaction = transaction;
        // Add the new transaction to the core.
        var userAgentClientId = transaction.id + transaction.request.method;
        this.core.userAgentClients.set(userAgentClientId, this);
    };
    return UserAgentClient;
}());
exports.UserAgentClient = UserAgentClient;


/***/ }),
/* 43 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * BYE UAS.
 * @public
 */
var ByeUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(ByeUserAgentServer, _super);
    function ByeUserAgentServer(dialog, message, delegate) {
        return _super.call(this, transactions_1.NonInviteServerTransaction, dialog.userAgentCore, message, delegate) || this;
    }
    return ByeUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.ByeUserAgentServer = ByeUserAgentServer;


/***/ }),
/* 44 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var exceptions_1 = __webpack_require__(31);
var messages_1 = __webpack_require__(5);
var utils_1 = __webpack_require__(16);
var transactions_1 = __webpack_require__(27);
/**
 * User Agent Server (UAS).
 * @remarks
 * A user agent server is a logical entity
 * that generates a response to a SIP request.  The response
 * accepts, rejects, or redirects the request.  This role lasts
 * only for the duration of that transaction.  In other words, if
 * a piece of software responds to a request, it acts as a UAS for
 * the duration of that transaction.  If it generates a request
 * later, it assumes the role of a user agent client for the
 * processing of that transaction.
 * https://tools.ietf.org/html/rfc3261#section-6
 * @public
 */
var UserAgentServer = /** @class */ (function () {
    function UserAgentServer(transactionConstructor, core, message, delegate) {
        this.transactionConstructor = transactionConstructor;
        this.core = core;
        this.message = message;
        this.delegate = delegate;
        this.logger = this.loggerFactory.getLogger("sip.user-agent-server");
        this.toTag = message.toTag ? message.toTag : utils_1.newTag();
        this.init();
    }
    UserAgentServer.prototype.dispose = function () {
        this.transaction.dispose();
    };
    Object.defineProperty(UserAgentServer.prototype, "loggerFactory", {
        get: function () {
            return this.core.loggerFactory;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentServer.prototype, "transaction", {
        /** The transaction associated with this request. */
        get: function () {
            if (!this._transaction) {
                throw new Error("Transaction undefined.");
            }
            return this._transaction;
        },
        enumerable: true,
        configurable: true
    });
    UserAgentServer.prototype.accept = function (options) {
        if (options === void 0) { options = { statusCode: 200 }; }
        if (!this.acceptable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not acceptable in state " + this.transaction.state + ".");
        }
        var statusCode = options.statusCode;
        if (statusCode < 200 || statusCode > 299) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        var response = this.reply(options);
        return response;
    };
    UserAgentServer.prototype.progress = function (options) {
        if (options === void 0) { options = { statusCode: 180 }; }
        if (!this.progressable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not progressable in state " + this.transaction.state + ".");
        }
        var statusCode = options.statusCode;
        if (statusCode < 101 || statusCode > 199) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        var response = this.reply(options);
        return response;
    };
    UserAgentServer.prototype.redirect = function (contacts, options) {
        if (options === void 0) { options = { statusCode: 302 }; }
        if (!this.redirectable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not redirectable in state " + this.transaction.state + ".");
        }
        var statusCode = options.statusCode;
        if (statusCode < 300 || statusCode > 399) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        var contactHeaders = new Array();
        contacts.forEach(function (contact) { return contactHeaders.push("Contact: " + contact.toString()); });
        options.extraHeaders = (options.extraHeaders || []).concat(contactHeaders);
        var response = this.reply(options);
        return response;
    };
    UserAgentServer.prototype.reject = function (options) {
        if (options === void 0) { options = { statusCode: 480 }; }
        if (!this.rejectable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not rejectable in state " + this.transaction.state + ".");
        }
        var statusCode = options.statusCode;
        if (statusCode < 400 || statusCode > 699) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        var response = this.reply(options);
        return response;
    };
    UserAgentServer.prototype.trying = function (options) {
        if (!this.tryingable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not tryingable in state " + this.transaction.state + ".");
        }
        var response = this.reply({ statusCode: 100 });
        return response;
    };
    /**
     * If the UAS did not find a matching transaction for the CANCEL
     * according to the procedure above, it SHOULD respond to the CANCEL
     * with a 481 (Call Leg/Transaction Does Not Exist).  If the transaction
     * for the original request still exists, the behavior of the UAS on
     * receiving a CANCEL request depends on whether it has already sent a
     * final response for the original request.  If it has, the CANCEL
     * request has no effect on the processing of the original request, no
     * effect on any session state, and no effect on the responses generated
     * for the original request.  If the UAS has not issued a final response
     * for the original request, its behavior depends on the method of the
     * original request.  If the original request was an INVITE, the UAS
     * SHOULD immediately respond to the INVITE with a 487 (Request
     * Terminated).  A CANCEL request has no impact on the processing of
     * transactions with any other method defined in this specification.
     * https://tools.ietf.org/html/rfc3261#section-9.2
     * @param request - Incoming CANCEL request.
     */
    UserAgentServer.prototype.receiveCancel = function (message) {
        // Note: Currently CANCEL is being handled as a special case.
        // No UAS is created to handle the CANCEL and the response to
        // it CANCEL is being handled statelessly by the user agent core.
        // As such, there is currently no way to externally impact the
        // response to the a CANCEL request.
        if (this.delegate && this.delegate.onCancel) {
            this.delegate.onCancel(message);
        }
    };
    Object.defineProperty(UserAgentServer.prototype, "acceptable", {
        get: function () {
            if (this.transaction instanceof transactions_1.InviteServerTransaction) {
                return (this.transaction.state === transactions_1.TransactionState.Proceeding ||
                    this.transaction.state === transactions_1.TransactionState.Accepted);
            }
            if (this.transaction instanceof transactions_1.NonInviteServerTransaction) {
                return (this.transaction.state === transactions_1.TransactionState.Trying ||
                    this.transaction.state === transactions_1.TransactionState.Proceeding);
            }
            throw new Error("Unknown transaction type.");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentServer.prototype, "progressable", {
        get: function () {
            if (this.transaction instanceof transactions_1.InviteServerTransaction) {
                return this.transaction.state === transactions_1.TransactionState.Proceeding;
            }
            if (this.transaction instanceof transactions_1.NonInviteServerTransaction) {
                return false; // https://tools.ietf.org/html/rfc4320#section-4.1
            }
            throw new Error("Unknown transaction type.");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentServer.prototype, "redirectable", {
        get: function () {
            if (this.transaction instanceof transactions_1.InviteServerTransaction) {
                return this.transaction.state === transactions_1.TransactionState.Proceeding;
            }
            if (this.transaction instanceof transactions_1.NonInviteServerTransaction) {
                return (this.transaction.state === transactions_1.TransactionState.Trying ||
                    this.transaction.state === transactions_1.TransactionState.Proceeding);
            }
            throw new Error("Unknown transaction type.");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentServer.prototype, "rejectable", {
        get: function () {
            if (this.transaction instanceof transactions_1.InviteServerTransaction) {
                return this.transaction.state === transactions_1.TransactionState.Proceeding;
            }
            if (this.transaction instanceof transactions_1.NonInviteServerTransaction) {
                return (this.transaction.state === transactions_1.TransactionState.Trying ||
                    this.transaction.state === transactions_1.TransactionState.Proceeding);
            }
            throw new Error("Unknown transaction type.");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentServer.prototype, "tryingable", {
        get: function () {
            if (this.transaction instanceof transactions_1.InviteServerTransaction) {
                return this.transaction.state === transactions_1.TransactionState.Proceeding;
            }
            if (this.transaction instanceof transactions_1.NonInviteServerTransaction) {
                return this.transaction.state === transactions_1.TransactionState.Trying;
            }
            throw new Error("Unknown transaction type.");
        },
        enumerable: true,
        configurable: true
    });
    /**
     * When a UAS wishes to construct a response to a request, it follows
     * the general procedures detailed in the following subsections.
     * Additional behaviors specific to the response code in question, which
     * are not detailed in this section, may also be required.
     *
     * Once all procedures associated with the creation of a response have
     * been completed, the UAS hands the response back to the server
     * transaction from which it received the request.
     * https://tools.ietf.org/html/rfc3261#section-8.2.6
     * @param statusCode - Status code to reply with.
     * @param options - Reply options bucket.
     */
    UserAgentServer.prototype.reply = function (options) {
        if (!options.toTag && options.statusCode !== 100) {
            options.toTag = this.toTag;
        }
        options.userAgent = options.userAgent || this.core.configuration.userAgentHeaderFieldValue;
        options.supported = options.supported || this.core.configuration.supportedOptionTagsResponse;
        var response = messages_1.constructOutgoingResponse(this.message, options);
        this.transaction.receiveResponse(options.statusCode, response.message);
        return response;
    };
    UserAgentServer.prototype.init = function () {
        var _this = this;
        // We are the transaction user.
        var user = {
            loggerFactory: this.loggerFactory,
            onStateChange: function (newState) {
                if (newState === transactions_1.TransactionState.Terminated) {
                    // Remove the terminated transaction from the core.
                    _this.core.userAgentServers.delete(userAgentServerId);
                    _this.dispose();
                }
            },
            onTransportError: function (error) {
                _this.logger.error(error.message);
                if (_this.delegate && _this.delegate.onTransportError) {
                    _this.delegate.onTransportError(error);
                }
                else {
                    _this.logger.error("User agent server response transport error.");
                }
            }
        };
        // Create a new transaction with us as the user.
        var transaction = new this.transactionConstructor(this.message, this.core.transport, user);
        this._transaction = transaction;
        // Add the new transaction to the core.
        var userAgentServerId = transaction.id;
        this.core.userAgentServers.set(transaction.id, this);
    };
    return UserAgentServer;
}());
exports.UserAgentServer = UserAgentServer;


/***/ }),
/* 45 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * INFO UAC.
 * @public
 */
var InfoUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(InfoUserAgentClient, _super);
    function InfoUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.INFO, options);
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        return _this;
    }
    return InfoUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.InfoUserAgentClient = InfoUserAgentClient;


/***/ }),
/* 46 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * INFO UAS.
 * @public
 */
var InfoUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(InfoUserAgentServer, _super);
    function InfoUserAgentServer(dialog, message, delegate) {
        return _super.call(this, transactions_1.NonInviteServerTransaction, dialog.userAgentCore, message, delegate) || this;
    }
    return InfoUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.InfoUserAgentServer = InfoUserAgentServer;


/***/ }),
/* 47 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * NOTIFY UAS.
 * @public
 */
var NotifyUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(NotifyUserAgentClient, _super);
    function NotifyUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.NOTIFY, options);
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        return _this;
    }
    return NotifyUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.NotifyUserAgentClient = NotifyUserAgentClient;


/***/ }),
/* 48 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * NOTIFY UAS.
 * @public
 */
var NotifyUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(NotifyUserAgentServer, _super);
    /**
     * NOTIFY UAS constructor.
     * @param dialogOrCore - Dialog for in dialog NOTIFY, UserAgentCore for out of dialog NOTIFY (deprecated).
     * @param message - Incoming NOTIFY request message.
     */
    function NotifyUserAgentServer(dialogOrCore, message, delegate) {
        var _this = this;
        var userAgentCore = instanceOfDialog(dialogOrCore) ?
            dialogOrCore.userAgentCore :
            dialogOrCore;
        _this = _super.call(this, transactions_1.NonInviteServerTransaction, userAgentCore, message, delegate) || this;
        return _this;
    }
    return NotifyUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.NotifyUserAgentServer = NotifyUserAgentServer;
function instanceOfDialog(object) {
    return object.userAgentCore !== undefined;
}


/***/ }),
/* 49 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * PRACK UAC.
 * @public
 */
var PrackUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(PrackUserAgentClient, _super);
    function PrackUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.PRACK, options);
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        dialog.signalingStateTransition(message);
        return _this;
    }
    return PrackUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.PrackUserAgentClient = PrackUserAgentClient;


/***/ }),
/* 50 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * PRACK UAS.
 * @public
 */
var PrackUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(PrackUserAgentServer, _super);
    function PrackUserAgentServer(dialog, message, delegate) {
        var _this = _super.call(this, transactions_1.NonInviteServerTransaction, dialog.userAgentCore, message, delegate) || this;
        // Update dialog signaling state with offer/answer in body
        dialog.signalingStateTransition(message);
        _this.dialog = dialog;
        return _this;
    }
    /**
     * Update the dialog signaling state on a 2xx response.
     * @param options - Options bucket.
     */
    PrackUserAgentServer.prototype.accept = function (options) {
        if (options === void 0) { options = { statusCode: 200 }; }
        if (options.body) {
            // Update dialog signaling state with offer/answer in body
            this.dialog.signalingStateTransition(options.body);
        }
        return _super.prototype.accept.call(this, options);
    };
    return PrackUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.PrackUserAgentServer = PrackUserAgentServer;


/***/ }),
/* 51 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * Re-INVITE UAC.
 * @remarks
 * 14 Modifying an Existing Session
 * https://tools.ietf.org/html/rfc3261#section-14
 * 14.1 UAC Behavior
 * https://tools.ietf.org/html/rfc3261#section-14.1
 * @public
 */
var ReInviteUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(ReInviteUserAgentClient, _super);
    function ReInviteUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.INVITE, options);
        _this = _super.call(this, transactions_1.InviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        _this.delegate = delegate;
        dialog.signalingStateTransition(message);
        // FIXME: TODO: next line obviously needs to be improved...
        dialog.reinviteUserAgentClient = _this; // let the dialog know re-invite request sent
        _this.dialog = dialog;
        return _this;
    }
    ReInviteUserAgentClient.prototype.receiveResponse = function (message) {
        var _this = this;
        var statusCode = message.statusCode ? message.statusCode.toString() : "";
        if (!statusCode) {
            throw new Error("Response status code undefined.");
        }
        switch (true) {
            case /^100$/.test(statusCode):
                if (this.delegate && this.delegate.onTrying) {
                    this.delegate.onTrying({ message: message });
                }
                break;
            case /^1[0-9]{2}$/.test(statusCode):
                if (this.delegate && this.delegate.onProgress) {
                    this.delegate.onProgress({
                        message: message,
                        session: this.dialog,
                        prack: function (options) {
                            throw new Error("Unimplemented.");
                        }
                    });
                }
                break;
            case /^2[0-9]{2}$/.test(statusCode):
                // Update dialog signaling state with offer/answer in body
                this.dialog.signalingStateTransition(message);
                if (this.delegate && this.delegate.onAccept) {
                    this.delegate.onAccept({
                        message: message,
                        session: this.dialog,
                        ack: function (options) {
                            var outgoingAckRequest = _this.dialog.ack(options);
                            return outgoingAckRequest;
                        }
                    });
                }
                break;
            case /^3[0-9]{2}$/.test(statusCode):
                this.dialog.signalingStateRollback();
                this.dialog.reinviteUserAgentClient = undefined; // ACK was handled by transaction
                if (this.delegate && this.delegate.onRedirect) {
                    this.delegate.onRedirect({ message: message });
                }
                break;
            case /^[4-6][0-9]{2}$/.test(statusCode):
                this.dialog.signalingStateRollback();
                this.dialog.reinviteUserAgentClient = undefined; // ACK was handled by transaction
                if (this.delegate && this.delegate.onReject) {
                    this.delegate.onReject({ message: message });
                }
                else {
                    // If a UA receives a non-2xx final response to a re-INVITE, the session
                    // parameters MUST remain unchanged, as if no re-INVITE had been issued.
                    // Note that, as stated in Section 12.2.1.2, if the non-2xx final
                    // response is a 481 (Call/Transaction Does Not Exist), or a 408
                    // (Request Timeout), or no response at all is received for the re-
                    // INVITE (that is, a timeout is returned by the INVITE client
                    // transaction), the UAC will terminate the dialog.
                    //
                    // If a UAC receives a 491 response to a re-INVITE, it SHOULD start a
                    // timer with a value T chosen as follows:
                    //
                    //    1. If the UAC is the owner of the Call-ID of the dialog ID
                    //       (meaning it generated the value), T has a randomly chosen value
                    //       between 2.1 and 4 seconds in units of 10 ms.
                    //
                    //    2. If the UAC is not the owner of the Call-ID of the dialog ID, T
                    //       has a randomly chosen value of between 0 and 2 seconds in units
                    //       of 10 ms.
                    //
                    // When the timer fires, the UAC SHOULD attempt the re-INVITE once more,
                    // if it still desires for that session modification to take place.  For
                    // example, if the call was already hung up with a BYE, the re-INVITE
                    // would not take place.
                    // https://tools.ietf.org/html/rfc3261#section-14.1
                    // FIXME: TODO: The above.
                }
                break;
            default:
                throw new Error("Invalid status code " + statusCode);
        }
    };
    return ReInviteUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.ReInviteUserAgentClient = ReInviteUserAgentClient;


/***/ }),
/* 52 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * Re-INVITE UAS.
 * @remarks
 * 14 Modifying an Existing Session
 * https://tools.ietf.org/html/rfc3261#section-14
 * 14.2 UAS Behavior
 * https://tools.ietf.org/html/rfc3261#section-14.2
 * @public
 */
var ReInviteUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(ReInviteUserAgentServer, _super);
    function ReInviteUserAgentServer(dialog, message, delegate) {
        var _this = _super.call(this, transactions_1.InviteServerTransaction, dialog.userAgentCore, message, delegate) || this;
        dialog.reinviteUserAgentServer = _this;
        _this.dialog = dialog;
        return _this;
    }
    /**
     * Update the dialog signaling state on a 2xx response.
     * @param options - Options bucket.
     */
    ReInviteUserAgentServer.prototype.accept = function (options) {
        if (options === void 0) { options = { statusCode: 200 }; }
        // FIXME: The next two lines SHOULD go away, but I suppose it's technically harmless...
        // These are here because some versions of SIP.js prior to 0.13.8 set the route set
        // of all in dialog ACKs based on the Record-Route headers in the associated 2xx
        // response. While this worked for dialog forming 2xx responses, it was technically
        // broken for re-INVITE ACKS as it only worked if the UAS populated the Record-Route
        // headers in the re-INVITE 2xx response (which is not required and a waste of bandwidth
        // as the should be ignored if present in re-INVITE ACKS) and the UAS populated
        // the Record-Route headers with the correct values (would be weird not too, but...).
        // Anyway, for now the technically useless Record-Route headers are being added
        // to maintain "backwards compatibility" with the older broken versions of SIP.js.
        options.extraHeaders = options.extraHeaders || [];
        options.extraHeaders = options.extraHeaders.concat(this.dialog.routeSet.map(function (route) { return "Record-Route: " + route; }));
        // Send and return the response
        var response = _super.prototype.accept.call(this, options);
        var session = this.dialog;
        var result = tslib_1.__assign(tslib_1.__assign({}, response), { session: session });
        if (options.body) {
            // Update dialog signaling state with offer/answer in body
            this.dialog.signalingStateTransition(options.body);
        }
        // Update dialog
        this.dialog.reConfirm();
        return result;
    };
    /**
     * Update the dialog signaling state on a 1xx response.
     * @param options - Progress options bucket.
     */
    ReInviteUserAgentServer.prototype.progress = function (options) {
        if (options === void 0) { options = { statusCode: 180 }; }
        // Send and return the response
        var response = _super.prototype.progress.call(this, options);
        var session = this.dialog;
        var result = tslib_1.__assign(tslib_1.__assign({}, response), { session: session });
        // Update dialog signaling state
        if (options.body) {
            this.dialog.signalingStateTransition(options.body);
        }
        return result;
    };
    /**
     * TODO: Not Yet Supported
     * @param contacts - Contacts to redirect to.
     * @param options - Redirect options bucket.
     */
    ReInviteUserAgentServer.prototype.redirect = function (contacts, options) {
        if (options === void 0) { options = { statusCode: 302 }; }
        this.dialog.signalingStateRollback();
        this.dialog.reinviteUserAgentServer = undefined; // ACK will be handled by transaction
        throw new Error("Unimplemented.");
    };
    /**
     * 3.1 Background on Re-INVITE Handling by UASs
     * An error response to a re-INVITE has the following semantics.  As
     * specified in Section 12.2.2 of RFC 3261 [RFC3261], if a re-INVITE is
     * rejected, no state changes are performed.
     * https://tools.ietf.org/html/rfc6141#section-3.1
     * @param options - Reject options bucket.
     */
    ReInviteUserAgentServer.prototype.reject = function (options) {
        if (options === void 0) { options = { statusCode: 488 }; }
        this.dialog.signalingStateRollback();
        this.dialog.reinviteUserAgentServer = undefined; // ACK will be handled by transaction
        return _super.prototype.reject.call(this, options);
    };
    return ReInviteUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.ReInviteUserAgentServer = ReInviteUserAgentServer;


/***/ }),
/* 53 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * REFER UAC.
 * @public
 */
var ReferUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(ReferUserAgentClient, _super);
    function ReferUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.REFER, options);
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        return _this;
    }
    return ReferUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.ReferUserAgentClient = ReferUserAgentClient;


/***/ }),
/* 54 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * REFER UAS.
 * @public
 */
var ReferUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(ReferUserAgentServer, _super);
    /**
     * REFER UAS constructor.
     * @param dialogOrCore - Dialog for in dialog REFER, UserAgentCore for out of dialog REFER.
     * @param message - Incoming REFER request message.
     */
    function ReferUserAgentServer(dialogOrCore, message, delegate) {
        var _this = this;
        var userAgentCore = instanceOfSessionDialog(dialogOrCore) ?
            dialogOrCore.userAgentCore :
            dialogOrCore;
        _this = _super.call(this, transactions_1.NonInviteServerTransaction, userAgentCore, message, delegate) || this;
        return _this;
    }
    return ReferUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.ReferUserAgentServer = ReferUserAgentServer;
function instanceOfSessionDialog(object) {
    return object.userAgentCore !== undefined;
}


/***/ }),
/* 55 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var subscription_1 = __webpack_require__(56);
var timers_1 = __webpack_require__(26);
var allowed_methods_1 = __webpack_require__(58);
var notify_user_agent_server_1 = __webpack_require__(48);
var re_subscribe_user_agent_client_1 = __webpack_require__(59);
var dialog_1 = __webpack_require__(4);
/**
 * Subscription Dialog.
 * @remarks
 * SIP-Specific Event Notification
 *
 * Abstract
 *
 *    This document describes an extension to the Session Initiation
 *    Protocol (SIP) defined by RFC 3261.  The purpose of this extension is
 *    to provide an extensible framework by which SIP nodes can request
 *    notification from remote nodes indicating that certain events have
 *    occurred.
 *
 *    Note that the event notification mechanisms defined herein are NOT
 *    intended to be a general-purpose infrastructure for all classes of
 *    event subscription and notification.
 *
 *    This document represents a backwards-compatible improvement on the
 *    original mechanism described by RFC 3265, taking into account several
 *    years of implementation experience.  Accordingly, this document
 *    obsoletes RFC 3265.  This document also updates RFC 4660 slightly to
 *    accommodate some small changes to the mechanism that were discussed
 *    in that document.
 *
 *  https://tools.ietf.org/html/rfc6665
 * @public
 */
var SubscriptionDialog = /** @class */ (function (_super) {
    tslib_1.__extends(SubscriptionDialog, _super);
    function SubscriptionDialog(subscriptionEvent, subscriptionExpires, subscriptionState, core, state, delegate) {
        var _this = _super.call(this, core, state) || this;
        _this.delegate = delegate;
        _this._autoRefresh = false;
        _this._subscriptionEvent = subscriptionEvent;
        _this._subscriptionExpires = subscriptionExpires;
        _this._subscriptionExpiresInitial = subscriptionExpires;
        _this._subscriptionExpiresLastSet = Math.floor(Date.now() / 1000);
        _this._subscriptionRefresh = undefined;
        _this._subscriptionRefreshLastSet = undefined;
        _this._subscriptionState = subscriptionState;
        _this.logger = core.loggerFactory.getLogger("sip.subscribe-dialog");
        _this.logger.log("SUBSCRIBE dialog " + _this.id + " constructed");
        return _this;
    }
    /**
     * When a UAC receives a response that establishes a dialog, it
     * constructs the state of the dialog.  This state MUST be maintained
     * for the duration of the dialog.
     * https://tools.ietf.org/html/rfc3261#section-12.1.2
     * @param outgoingRequestMessage - Outgoing request message for dialog.
     * @param incomingResponseMessage - Incoming response message creating dialog.
     */
    SubscriptionDialog.initialDialogStateForSubscription = function (outgoingSubscribeRequestMessage, incomingNotifyRequestMessage) {
        // If the request was sent over TLS, and the Request-URI contained a
        // SIPS URI, the "secure" flag is set to TRUE.
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        var secure = false; // FIXME: Currently no support for TLS.
        // The route set MUST be set to the list of URIs in the Record-Route
        // header field from the response, taken in reverse order and preserving
        // all URI parameters.  If no Record-Route header field is present in
        // the response, the route set MUST be set to the empty set.  This route
        // set, even if empty, overrides any pre-existing route set for future
        // requests in this dialog.  The remote target MUST be set to the URI
        // from the Contact header field of the response.
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        var routeSet = incomingNotifyRequestMessage.getHeaders("record-route");
        var contact = incomingNotifyRequestMessage.parseHeader("contact");
        if (!contact) { // TODO: Review to make sure this will never happen
            throw new Error("Contact undefined.");
        }
        if (!(contact instanceof messages_1.NameAddrHeader)) {
            throw new Error("Contact not instance of NameAddrHeader.");
        }
        var remoteTarget = contact.uri;
        // The local sequence number MUST be set to the value of the sequence
        // number in the CSeq header field of the request.  The remote sequence
        // number MUST be empty (it is established when the remote UA sends a
        // request within the dialog).  The call identifier component of the
        // dialog ID MUST be set to the value of the Call-ID in the request.
        // The local tag component of the dialog ID MUST be set to the tag in
        // the From field in the request, and the remote tag component of the
        // dialog ID MUST be set to the tag in the To field of the response.  A
        // UAC MUST be prepared to receive a response without a tag in the To
        // field, in which case the tag is considered to have a value of null.
        //
        //    This is to maintain backwards compatibility with RFC 2543, which
        //    did not mandate To tags.
        //
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        var localSequenceNumber = outgoingSubscribeRequestMessage.cseq;
        var remoteSequenceNumber = undefined;
        var callId = outgoingSubscribeRequestMessage.callId;
        var localTag = outgoingSubscribeRequestMessage.fromTag;
        var remoteTag = incomingNotifyRequestMessage.fromTag;
        if (!callId) { // TODO: Review to make sure this will never happen
            throw new Error("Call id undefined.");
        }
        if (!localTag) { // TODO: Review to make sure this will never happen
            throw new Error("From tag undefined.");
        }
        if (!remoteTag) { // TODO: Review to make sure this will never happen
            throw new Error("To tag undefined."); // FIXME: No backwards compatibility with RFC 2543
        }
        // The remote URI MUST be set to the URI in the To field, and the local
        // URI MUST be set to the URI in the From field.
        // https://tools.ietf.org/html/rfc3261#section-12.1.2
        if (!outgoingSubscribeRequestMessage.from) { // TODO: Review to make sure this will never happen
            throw new Error("From undefined.");
        }
        if (!outgoingSubscribeRequestMessage.to) { // TODO: Review to make sure this will never happen
            throw new Error("To undefined.");
        }
        var localURI = outgoingSubscribeRequestMessage.from.uri;
        var remoteURI = outgoingSubscribeRequestMessage.to.uri;
        // A dialog can also be in the "early" state, which occurs when it is
        // created with a provisional response, and then transition to the
        // "confirmed" state when a 2xx final response arrives.
        // https://tools.ietf.org/html/rfc3261#section-12
        var early = false;
        var dialogState = {
            id: callId + localTag + remoteTag,
            early: early,
            callId: callId,
            localTag: localTag,
            remoteTag: remoteTag,
            localSequenceNumber: localSequenceNumber,
            remoteSequenceNumber: remoteSequenceNumber,
            localURI: localURI,
            remoteURI: remoteURI,
            remoteTarget: remoteTarget,
            routeSet: routeSet,
            secure: secure
        };
        return dialogState;
    };
    SubscriptionDialog.prototype.dispose = function () {
        _super.prototype.dispose.call(this);
        if (this.N) {
            clearTimeout(this.N);
            this.N = undefined;
        }
        this.refreshTimerClear();
        this.logger.log("SUBSCRIBE dialog " + this.id + " destroyed");
    };
    Object.defineProperty(SubscriptionDialog.prototype, "autoRefresh", {
        get: function () {
            return this._autoRefresh;
        },
        set: function (autoRefresh) {
            this._autoRefresh = true;
            this.refreshTimerSet();
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SubscriptionDialog.prototype, "subscriptionEvent", {
        get: function () {
            return this._subscriptionEvent;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SubscriptionDialog.prototype, "subscriptionExpires", {
        /** Number of seconds until subscription expires. */
        get: function () {
            var secondsSinceLastSet = Math.floor(Date.now() / 1000) - this._subscriptionExpiresLastSet;
            var secondsUntilExpires = this._subscriptionExpires - secondsSinceLastSet;
            return Math.max(secondsUntilExpires, 0);
        },
        set: function (expires) {
            if (expires < 0) {
                throw new Error("Expires must be greater than or equal to zero.");
            }
            this._subscriptionExpires = expires;
            this._subscriptionExpiresLastSet = Math.floor(Date.now() / 1000);
            if (this.autoRefresh) {
                var refresh = this.subscriptionRefresh;
                if (refresh === undefined || refresh >= expires) {
                    this.refreshTimerSet();
                }
            }
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SubscriptionDialog.prototype, "subscriptionExpiresInitial", {
        get: function () {
            return this._subscriptionExpiresInitial;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SubscriptionDialog.prototype, "subscriptionRefresh", {
        /** Number of seconds until subscription auto refresh. */
        get: function () {
            if (this._subscriptionRefresh === undefined || this._subscriptionRefreshLastSet === undefined) {
                return undefined;
            }
            var secondsSinceLastSet = Math.floor(Date.now() / 1000) - this._subscriptionRefreshLastSet;
            var secondsUntilExpires = this._subscriptionRefresh - secondsSinceLastSet;
            return Math.max(secondsUntilExpires, 0);
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(SubscriptionDialog.prototype, "subscriptionState", {
        get: function () {
            return this._subscriptionState;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Receive in dialog request message from transport.
     * @param message -  The incoming request message.
     */
    SubscriptionDialog.prototype.receiveRequest = function (message) {
        this.logger.log("SUBSCRIBE dialog " + this.id + " received " + message.method + " request");
        // Request within a dialog out of sequence guard.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        if (!this.sequenceGuard(message)) {
            this.logger.log("SUBSCRIBE dialog " + this.id + " rejected out of order " + message.method + " request.");
            return;
        }
        // Request within a dialog common processing.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        _super.prototype.receiveRequest.call(this, message);
        // Switch on method and then delegate.
        switch (message.method) {
            case messages_1.C.NOTIFY:
                this.onNotify(message);
                break;
            default:
                this.logger.log("SUBSCRIBE dialog " + this.id + " received unimplemented " + message.method + " request");
                this.core.replyStateless(message, { statusCode: 501 });
                break;
        }
    };
    /**
     * 4.1.2.2.  Refreshing of Subscriptions
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.2
     */
    SubscriptionDialog.prototype.refresh = function () {
        var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
        var options = {};
        options.extraHeaders = (options.extraHeaders || []).slice();
        options.extraHeaders.push(allowHeader);
        options.extraHeaders.push("Event: " + this.subscriptionEvent);
        options.extraHeaders.push("Expires: " + this.subscriptionExpiresInitial);
        options.extraHeaders.push("Contact: " + this.core.configuration.contact.toString());
        return this.subscribe(undefined, options);
    };
    /**
     * 4.1.2.2.  Refreshing of Subscriptions
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.2
     * @param delegate - Delegate to handle responses.
     * @param options - Options bucket.
     */
    SubscriptionDialog.prototype.subscribe = function (delegate, options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (this.subscriptionState !== subscription_1.SubscriptionState.Pending && this.subscriptionState !== subscription_1.SubscriptionState.Active) {
            // FIXME: This needs to be a proper exception
            throw new Error("Invalid state " + this.subscriptionState + ". May only re-subscribe while in state \"pending\" or \"active\".");
        }
        this.logger.log("SUBSCRIBE dialog " + this.id + " sending SUBSCRIBE request");
        var uac = new re_subscribe_user_agent_client_1.ReSubscribeUserAgentClient(this, delegate, options);
        // When refreshing a subscription, a subscriber starts Timer N, set to
        // 64*T1, when it sends the SUBSCRIBE request.
        // https://tools.ietf.org/html/rfc6665#section-4.1.2.2
        this.N = setTimeout(function () { return _this.timer_N(); }, timers_1.Timers.TIMER_N);
        return uac;
    };
    /**
     * 4.4.1.  Dialog Creation and Termination
     * A subscription is destroyed after a notifier sends a NOTIFY request
     * with a "Subscription-State" of "terminated", or in certain error
     * situations described elsewhere in this document.
     * https://tools.ietf.org/html/rfc6665#section-4.4.1
     */
    SubscriptionDialog.prototype.terminate = function () {
        this.stateTransition(subscription_1.SubscriptionState.Terminated);
        this.onTerminated();
    };
    /**
     * 4.1.2.3.  Unsubscribing
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.3
     */
    SubscriptionDialog.prototype.unsubscribe = function () {
        var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
        var options = {};
        options.extraHeaders = (options.extraHeaders || []).slice();
        options.extraHeaders.push(allowHeader);
        options.extraHeaders.push("Event: " + this.subscriptionEvent);
        options.extraHeaders.push("Expires: 0");
        options.extraHeaders.push("Contact: " + this.core.configuration.contact.toString());
        return this.subscribe(undefined, options);
    };
    /**
     * Handle in dialog NOTIFY requests.
     * This does not include the first NOTIFY which created the dialog.
     * @param message - The incoming NOTIFY request message.
     */
    SubscriptionDialog.prototype.onNotify = function (message) {
        // If, for some reason, the event package designated in the "Event"
        // header field of the NOTIFY request is not supported, the subscriber
        // will respond with a 489 (Bad Event) response.
        // https://tools.ietf.org/html/rfc6665#section-4.1.3
        var event = message.parseHeader("Event").event;
        if (!event || event !== this.subscriptionEvent) {
            this.core.replyStateless(message, { statusCode: 489 });
            return;
        }
        // In the state diagram, "Re-subscription times out" means that an
        // attempt to refresh or update the subscription using a new SUBSCRIBE
        // request does not result in a NOTIFY request before the corresponding
        // Timer N expires.
        // https://tools.ietf.org/html/rfc6665#section-4.1.2
        if (this.N) {
            clearTimeout(this.N);
            this.N = undefined;
        }
        // NOTIFY requests MUST contain "Subscription-State" header fields that
        // indicate the status of the subscription.
        // https://tools.ietf.org/html/rfc6665#section-4.1.3
        var subscriptionState = message.parseHeader("Subscription-State");
        if (!subscriptionState || !subscriptionState.state) {
            this.core.replyStateless(message, { statusCode: 489 });
            return;
        }
        var state = subscriptionState.state;
        var expires = subscriptionState.expires ? Math.max(subscriptionState.expires, 0) : undefined;
        // Update our state and expiration.
        switch (state) {
            case "pending":
                this.stateTransition(subscription_1.SubscriptionState.Pending, expires);
                break;
            case "active":
                this.stateTransition(subscription_1.SubscriptionState.Active, expires);
                break;
            case "terminated":
                this.stateTransition(subscription_1.SubscriptionState.Terminated, expires);
                break;
            default:
                this.logger.warn("Unrecognized subscription state.");
                break;
        }
        // Delegate remainder of NOTIFY handling.
        var uas = new notify_user_agent_server_1.NotifyUserAgentServer(this, message);
        if (this.delegate && this.delegate.onNotify) {
            this.delegate.onNotify(uas);
        }
        else {
            uas.accept();
        }
    };
    SubscriptionDialog.prototype.onRefresh = function (request) {
        if (this.delegate && this.delegate.onRefresh) {
            this.delegate.onRefresh(request);
        }
    };
    SubscriptionDialog.prototype.onTerminated = function () {
        if (this.delegate && this.delegate.onTerminated) {
            this.delegate.onTerminated();
        }
    };
    SubscriptionDialog.prototype.refreshTimerClear = function () {
        if (this.refreshTimer) {
            clearTimeout(this.refreshTimer);
            this.refreshTimer = undefined;
        }
    };
    SubscriptionDialog.prototype.refreshTimerSet = function () {
        var _this = this;
        this.refreshTimerClear();
        if (this.autoRefresh && this.subscriptionExpires > 0) {
            var refresh = this.subscriptionExpires * 900;
            this._subscriptionRefresh = Math.floor(refresh / 1000);
            this._subscriptionRefreshLastSet = Math.floor(Date.now() / 1000);
            this.refreshTimer = setTimeout(function () {
                _this.refreshTimer = undefined;
                _this._subscriptionRefresh = undefined;
                _this._subscriptionRefreshLastSet = undefined;
                _this.onRefresh(_this.refresh());
            }, refresh);
        }
    };
    SubscriptionDialog.prototype.stateTransition = function (newState, newExpires) {
        var _this = this;
        // Assert valid state transitions.
        var invalidStateTransition = function () {
            _this.logger.warn("Invalid subscription state transition from " + _this.subscriptionState + " to " + newState);
        };
        switch (newState) {
            case subscription_1.SubscriptionState.Initial:
                invalidStateTransition();
                return;
            case subscription_1.SubscriptionState.NotifyWait:
                invalidStateTransition();
                return;
            case subscription_1.SubscriptionState.Pending:
                if (this.subscriptionState !== subscription_1.SubscriptionState.NotifyWait &&
                    this.subscriptionState !== subscription_1.SubscriptionState.Pending) {
                    invalidStateTransition();
                    return;
                }
                break;
            case subscription_1.SubscriptionState.Active:
                if (this.subscriptionState !== subscription_1.SubscriptionState.NotifyWait &&
                    this.subscriptionState !== subscription_1.SubscriptionState.Pending &&
                    this.subscriptionState !== subscription_1.SubscriptionState.Active) {
                    invalidStateTransition();
                    return;
                }
                break;
            case subscription_1.SubscriptionState.Terminated:
                if (this.subscriptionState !== subscription_1.SubscriptionState.NotifyWait &&
                    this.subscriptionState !== subscription_1.SubscriptionState.Pending &&
                    this.subscriptionState !== subscription_1.SubscriptionState.Active) {
                    invalidStateTransition();
                    return;
                }
                break;
            default:
                invalidStateTransition();
                return;
        }
        // If the "Subscription-State" value is "pending", the subscription has
        // been received by the notifier, but there is insufficient policy
        // information to grant or deny the subscription yet.  If the header
        // field also contains an "expires" parameter, the subscriber SHOULD
        // take it as the authoritative subscription duration and adjust
        // accordingly.  No further action is necessary on the part of the
        // subscriber.  The "retry-after" and "reason" parameters have no
        // semantics for "pending".
        // https://tools.ietf.org/html/rfc6665#section-4.1.3
        if (newState === subscription_1.SubscriptionState.Pending) {
            if (newExpires) {
                this.subscriptionExpires = newExpires;
            }
        }
        // If the "Subscription-State" header field value is "active", it means
        // that the subscription has been accepted and (in general) has been
        // authorized.  If the header field also contains an "expires"
        // parameter, the subscriber SHOULD take it as the authoritative
        // subscription duration and adjust accordingly.  The "retry-after" and
        // "reason" parameters have no semantics for "active".
        // https://tools.ietf.org/html/rfc6665#section-4.1.3
        if (newState === subscription_1.SubscriptionState.Active) {
            if (newExpires) {
                this.subscriptionExpires = newExpires;
            }
        }
        // If the "Subscription-State" value is "terminated", the subscriber
        // MUST consider the subscription terminated.  The "expires" parameter
        // has no semantics for "terminated" -- notifiers SHOULD NOT include an
        // "expires" parameter on a "Subscription-State" header field with a
        // value of "terminated", and subscribers MUST ignore any such
        // parameter, if present.
        if (newState === subscription_1.SubscriptionState.Terminated) {
            this.dispose();
        }
        this._subscriptionState = newState;
    };
    /**
     * When refreshing a subscription, a subscriber starts Timer N, set to
     * 64*T1, when it sends the SUBSCRIBE request.  If this Timer N expires
     * prior to the receipt of a NOTIFY request, the subscriber considers
     * the subscription terminated.  If the subscriber receives a success
     * response to the SUBSCRIBE request that indicates that no NOTIFY
     * request will be generated -- such as the 204 response defined for use
     * with the optional extension described in [RFC5839] -- then it MUST
     * cancel Timer N.
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.2
     */
    SubscriptionDialog.prototype.timer_N = function () {
        if (this.subscriptionState !== subscription_1.SubscriptionState.Terminated) {
            this.stateTransition(subscription_1.SubscriptionState.Terminated);
            this.onTerminated();
        }
    };
    return SubscriptionDialog;
}(dialog_1.Dialog));
exports.SubscriptionDialog = SubscriptionDialog;


/***/ }),
/* 56 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(57), exports);


/***/ }),
/* 57 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Subscription state.
 * @remarks
 * https://tools.ietf.org/html/rfc6665#section-4.1.2
 * @public
 */
var SubscriptionState;
(function (SubscriptionState) {
    SubscriptionState["Initial"] = "Initial";
    SubscriptionState["NotifyWait"] = "NotifyWait";
    SubscriptionState["Pending"] = "Pending";
    SubscriptionState["Active"] = "Active";
    SubscriptionState["Terminated"] = "Terminated";
})(SubscriptionState = exports.SubscriptionState || (exports.SubscriptionState = {}));


/***/ }),
/* 58 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var messages_1 = __webpack_require__(5);
/**
 * FIXME: TODO: Should be configurable/variable.
 */
exports.AllowedMethods = [
    messages_1.C.ACK,
    messages_1.C.BYE,
    messages_1.C.CANCEL,
    messages_1.C.INFO,
    messages_1.C.INVITE,
    messages_1.C.MESSAGE,
    messages_1.C.NOTIFY,
    messages_1.C.OPTIONS,
    messages_1.C.PRACK,
    messages_1.C.REFER,
    messages_1.C.REGISTER,
    messages_1.C.SUBSCRIBE
];


/***/ }),
/* 59 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * Re-SUBSCRIBE UAC.
 * @public
 */
var ReSubscribeUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(ReSubscribeUserAgentClient, _super);
    function ReSubscribeUserAgentClient(dialog, delegate, options) {
        var _this = this;
        var message = dialog.createOutgoingRequestMessage(messages_1.C.SUBSCRIBE, options);
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, dialog.userAgentCore, message, delegate) || this;
        _this.dialog = dialog;
        return _this;
    }
    ReSubscribeUserAgentClient.prototype.waitNotifyStop = function () {
        // TODO: Placeholder. Not utilized currently.
        return;
    };
    /**
     * Receive a response from the transaction layer.
     * @param message - Incoming response message.
     */
    ReSubscribeUserAgentClient.prototype.receiveResponse = function (message) {
        if (message.statusCode && message.statusCode >= 200 && message.statusCode < 300) {
            //  The "Expires" header field in a 200-class response to SUBSCRIBE
            //  request indicates the actual duration for which the subscription will
            //  remain active (unless refreshed).  The received value might be
            //  smaller than the value indicated in the SUBSCRIBE request but cannot
            //  be larger; see Section 4.2.1 for details.
            // https://tools.ietf.org/html/rfc6665#section-4.1.2.1
            var expires = message.getHeader("Expires");
            if (!expires) {
                this.logger.warn("Expires header missing in a 200-class response to SUBSCRIBE");
            }
            else {
                var subscriptionExpiresReceived = Number(expires);
                if (this.dialog.subscriptionExpires > subscriptionExpiresReceived) {
                    this.dialog.subscriptionExpires = subscriptionExpiresReceived;
                }
            }
        }
        if (message.statusCode && message.statusCode >= 400 && message.statusCode < 700) {
            // If a SUBSCRIBE request to refresh a subscription receives a 404, 405,
            // 410, 416, 480-485, 489, 501, or 604 response, the subscriber MUST
            // consider the subscription terminated.  (See [RFC5057] for further
            // details and notes about the effect of error codes on dialogs and
            // usages within dialog, such as subscriptions).  If the subscriber
            // wishes to re-subscribe to the state, he does so by composing an
            // unrelated initial SUBSCRIBE request with a freshly generated Call-ID
            // and a new, unique "From" tag (see Section 4.1.2.1).
            // https://tools.ietf.org/html/rfc6665#section-4.1.2.2
            var errorCodes = [404, 405, 410, 416, 480, 481, 482, 483, 484, 485, 489, 501, 604];
            if (errorCodes.indexOf(message.statusCode) !== -1) {
                this.dialog.terminate();
            }
            // If a SUBSCRIBE request to refresh a subscription fails with any error
            // code other than those listed above, the original subscription is
            // still considered valid for the duration of the most recently known
            // "Expires" value as negotiated by the most recent successful SUBSCRIBE
            // transaction, or as communicated by a NOTIFY request in its
            // "Subscription-State" header field "expires" parameter.
            // https://tools.ietf.org/html/rfc6665#section-4.1.2.2
        }
        _super.prototype.receiveResponse.call(this, message);
    };
    return ReSubscribeUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.ReSubscribeUserAgentClient = ReSubscribeUserAgentClient;


/***/ }),
/* 60 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(61), exports);
tslib_1.__exportStar(__webpack_require__(62), exports);
tslib_1.__exportStar(__webpack_require__(63), exports);


/***/ }),
/* 61 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Log levels.
 * @public
 */
var Levels;
(function (Levels) {
    Levels[Levels["error"] = 0] = "error";
    Levels[Levels["warn"] = 1] = "warn";
    Levels[Levels["log"] = 2] = "log";
    Levels[Levels["debug"] = 3] = "debug";
})(Levels = exports.Levels || (exports.Levels = {}));


/***/ }),
/* 62 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var levels_1 = __webpack_require__(61);
var logger_1 = __webpack_require__(63);
/**
 * Logger.
 * @public
 */
var LoggerFactory = /** @class */ (function () {
    function LoggerFactory() {
        this.builtinEnabled = true;
        this._level = levels_1.Levels.log;
        this.loggers = {};
        this.logger = this.getLogger("sip:loggerfactory");
    }
    Object.defineProperty(LoggerFactory.prototype, "level", {
        get: function () { return this._level; },
        set: function (newLevel) {
            if (newLevel >= 0 && newLevel <= 3) {
                this._level = newLevel;
            }
            else if (newLevel > 3) {
                this._level = 3;
            }
            else if (levels_1.Levels.hasOwnProperty(newLevel)) {
                this._level = newLevel;
            }
            else {
                this.logger.error("invalid 'level' parameter value: " + JSON.stringify(newLevel));
            }
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(LoggerFactory.prototype, "connector", {
        get: function () {
            return this._connector;
        },
        set: function (value) {
            if (!value) {
                this._connector = undefined;
            }
            else if (typeof value === "function") {
                this._connector = value;
            }
            else {
                this.logger.error("invalid 'connector' parameter value: " + JSON.stringify(value));
            }
        },
        enumerable: true,
        configurable: true
    });
    LoggerFactory.prototype.getLogger = function (category, label) {
        if (label && this.level === 3) {
            return new logger_1.Logger(this, category, label);
        }
        else if (this.loggers[category]) {
            return this.loggers[category];
        }
        else {
            var logger = new logger_1.Logger(this, category);
            this.loggers[category] = logger;
            return logger;
        }
    };
    LoggerFactory.prototype.genericLog = function (levelToLog, category, label, content) {
        if (this.level >= levelToLog) {
            if (this.builtinEnabled) {
                this.print(levelToLog, category, label, content);
            }
        }
        if (this.connector) {
            this.connector(levels_1.Levels[levelToLog], category, label, content);
        }
    };
    LoggerFactory.prototype.print = function (levelToLog, category, label, content) {
        if (typeof content === "string") {
            var prefix = [new Date(), category];
            if (label) {
                prefix.push(label);
            }
            content = prefix.concat(content).join(" | ");
        }
        switch (levelToLog) {
            case levels_1.Levels.error:
                // tslint:disable-next-line:no-console
                console.error(content);
                break;
            case levels_1.Levels.warn:
                // tslint:disable-next-line:no-console
                console.warn(content);
                break;
            case levels_1.Levels.log:
                // tslint:disable-next-line:no-console
                console.log(content);
                break;
            case levels_1.Levels.debug:
                // tslint:disable-next-line:no-console
                console.debug(content);
                break;
            default:
                break;
        }
    };
    return LoggerFactory;
}());
exports.LoggerFactory = LoggerFactory;


/***/ }),
/* 63 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var levels_1 = __webpack_require__(61);
/**
 * Logger.
 * @public
 */
var Logger = /** @class */ (function () {
    function Logger(logger, category, label) {
        this.logger = logger;
        this.category = category;
        this.label = label;
    }
    Logger.prototype.error = function (content) { this.genericLog(levels_1.Levels.error, content); };
    Logger.prototype.warn = function (content) { this.genericLog(levels_1.Levels.warn, content); };
    Logger.prototype.log = function (content) { this.genericLog(levels_1.Levels.log, content); };
    Logger.prototype.debug = function (content) { this.genericLog(levels_1.Levels.debug, content); };
    Logger.prototype.genericLog = function (level, content) {
        this.logger.genericLog(level, this.category, this.label, content);
    };
    return Logger;
}());
exports.Logger = Logger;


/***/ }),
/* 64 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(65), exports);


/***/ }),
/* 65 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var messages_1 = __webpack_require__(5);
var transactions_1 = __webpack_require__(27);
var user_agents_1 = __webpack_require__(66);
var allowed_methods_1 = __webpack_require__(58);
/**
 * This is ported from UA.C.ACCEPTED_BODY_TYPES.
 * FIXME: TODO: Should be configurable/variable.
 */
var acceptedBodyTypes = [
    "application/sdp",
    "application/dtmf-relay"
];
/**
 * User Agent Core.
 * @remarks
 * Core designates the functions specific to a particular type
 * of SIP entity, i.e., specific to either a stateful or stateless
 * proxy, a user agent or registrar.  All cores, except those for
 * the stateless proxy, are transaction users.
 * https://tools.ietf.org/html/rfc3261#section-6
 *
 * UAC Core: The set of processing functions required of a UAC that
 * reside above the transaction and transport layers.
 * https://tools.ietf.org/html/rfc3261#section-6
 *
 * UAS Core: The set of processing functions required at a UAS that
 * resides above the transaction and transport layers.
 * https://tools.ietf.org/html/rfc3261#section-6
 * @public
 */
var UserAgentCore = /** @class */ (function () {
    /**
     * Constructor.
     * @param configuration - Configuration.
     * @param delegate - Delegate.
     */
    function UserAgentCore(configuration, delegate) {
        if (delegate === void 0) { delegate = {}; }
        /** UACs. */
        this.userAgentClients = new Map();
        /** UASs. */
        this.userAgentServers = new Map();
        this.configuration = configuration;
        this.delegate = delegate;
        this.dialogs = new Map();
        this.subscribers = new Map();
        this.logger = configuration.loggerFactory.getLogger("sip.user-agent-core");
    }
    /** Destructor. */
    UserAgentCore.prototype.dispose = function () {
        this.reset();
    };
    /** Reset. */
    UserAgentCore.prototype.reset = function () {
        this.dialogs.forEach(function (dialog) { return dialog.dispose(); });
        this.dialogs.clear();
        this.subscribers.forEach(function (subscriber) { return subscriber.dispose(); });
        this.subscribers.clear();
        this.userAgentClients.forEach(function (uac) { return uac.dispose(); });
        this.userAgentClients.clear();
        this.userAgentServers.forEach(function (uac) { return uac.dispose(); });
        this.userAgentServers.clear();
    };
    Object.defineProperty(UserAgentCore.prototype, "loggerFactory", {
        /** Logger factory. */
        get: function () {
            return this.configuration.loggerFactory;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(UserAgentCore.prototype, "transport", {
        /** Transport. */
        get: function () {
            var transport = this.configuration.transportAccessor();
            if (!transport) {
                throw new Error("Transport undefined.");
            }
            return transport;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Send INVITE.
     * @param request - Outgoing request.
     * @param delegate - Request delegate.
     */
    UserAgentCore.prototype.invite = function (request, delegate) {
        return new user_agents_1.InviteUserAgentClient(this, request, delegate);
    };
    /**
     * Send MESSAGE.
     * @param request - Outgoing request.
     * @param delegate - Request delegate.
     */
    UserAgentCore.prototype.message = function (request, delegate) {
        return new user_agents_1.MessageUserAgentClient(this, request, delegate);
    };
    /**
     * Send PUBLISH.
     * @param request - Outgoing request.
     * @param delegate - Request delegate.
     */
    UserAgentCore.prototype.publish = function (request, delegate) {
        return new user_agents_1.PublishUserAgentClient(this, request, delegate);
    };
    /**
     * Send REGISTER.
     * @param request - Outgoing request.
     * @param delegate - Request delegate.
     */
    UserAgentCore.prototype.register = function (request, delegate) {
        return new user_agents_1.RegisterUserAgentClient(this, request, delegate);
    };
    /**
     * Send SUBSCRIBE.
     * @param request - Outgoing request.
     * @param delegate - Request delegate.
     */
    UserAgentCore.prototype.subscribe = function (request, delegate) {
        return new user_agents_1.SubscribeUserAgentClient(this, request, delegate);
    };
    /**
     * Send a request.
     * @param request - Outgoing request.
     * @param delegate - Request delegate.
     */
    UserAgentCore.prototype.request = function (request, delegate) {
        return new user_agents_1.UserAgentClient(transactions_1.NonInviteClientTransaction, this, request, delegate);
    };
    /**
     * Outgoing request message factory function.
     * @param method - Method.
     * @param requestURI - Request-URI.
     * @param fromURI - From URI.
     * @param toURI - To URI.
     * @param options - Request options.
     * @param extraHeaders - Extra headers to add.
     * @param body - Message body.
     */
    UserAgentCore.prototype.makeOutgoingRequestMessage = function (method, requestURI, fromURI, toURI, options, extraHeaders, body) {
        // default values from user agent configuration
        var callIdPrefix = this.configuration.sipjsId;
        var fromDisplayName = this.configuration.displayName;
        var forceRport = this.configuration.viaForceRport;
        var hackViaTcp = this.configuration.hackViaTcp;
        var optionTags = this.configuration.supportedOptionTags.slice();
        if (method === messages_1.C.REGISTER) {
            optionTags.push("path", "gruu");
        }
        if (method === messages_1.C.INVITE && (this.configuration.contact.pubGruu || this.configuration.contact.tempGruu)) {
            optionTags.push("gruu");
        }
        var routeSet = this.configuration.routeSet;
        var userAgentString = this.configuration.userAgentHeaderFieldValue;
        var viaHost = this.configuration.viaHost;
        var defaultOptions = {
            callIdPrefix: callIdPrefix,
            forceRport: forceRport,
            fromDisplayName: fromDisplayName,
            hackViaTcp: hackViaTcp,
            optionTags: optionTags,
            routeSet: routeSet,
            userAgentString: userAgentString,
            viaHost: viaHost,
        };
        // merge provided options with default options
        var requestOptions = tslib_1.__assign(tslib_1.__assign({}, defaultOptions), options);
        return new messages_1.OutgoingRequestMessage(method, requestURI, fromURI, toURI, requestOptions, extraHeaders, body);
    };
    /**
     * Handle an incoming request message from the transport.
     * @param message - Incoming request message from transport layer.
     */
    UserAgentCore.prototype.receiveIncomingRequestFromTransport = function (message) {
        this.receiveRequestFromTransport(message);
    };
    /**
     * Handle an incoming response message from the transport.
     * @param message - Incoming response message from transport layer.
     */
    UserAgentCore.prototype.receiveIncomingResponseFromTransport = function (message) {
        this.receiveResponseFromTransport(message);
    };
    /**
     * A stateless UAS is a UAS that does not maintain transaction state.
     * It replies to requests normally, but discards any state that would
     * ordinarily be retained by a UAS after a response has been sent.  If a
     * stateless UAS receives a retransmission of a request, it regenerates
     * the response and re-sends it, just as if it were replying to the first
     * instance of the request. A UAS cannot be stateless unless the request
     * processing for that method would always result in the same response
     * if the requests are identical. This rules out stateless registrars,
     * for example.  Stateless UASs do not use a transaction layer; they
     * receive requests directly from the transport layer and send responses
     * directly to the transport layer.
     * https://tools.ietf.org/html/rfc3261#section-8.2.7
     * @param message - Incoming request message to reply to.
     * @param statusCode - Status code to reply with.
     */
    UserAgentCore.prototype.replyStateless = function (message, options) {
        var _this = this;
        var userAgent = this.configuration.userAgentHeaderFieldValue;
        var supported = this.configuration.supportedOptionTagsResponse;
        options = tslib_1.__assign(tslib_1.__assign({}, options), { userAgent: userAgent, supported: supported });
        var response = messages_1.constructOutgoingResponse(message, options);
        this.transport.send(response.message).catch(function (error) {
            // If the transport rejects, it SHOULD reject with a TransportError.
            // But the transport may be external code, so we are careful...
            if (error instanceof Error) {
                _this.logger.error(error.message);
            }
            _this.logger.error("Transport error occurred sending stateless reply to " + message.method + " request.");
            // TODO: Currently there is no hook to provide notification that a transport error occurred
            // and throwing would result in an uncaught error (in promise), so we siliently eat the error.
            // Furthermore, silienty eating stateless reply transport errors is arguably what we want to do here.
        });
        return response;
    };
    /**
     * In Section 18.2.1, replace the last paragraph with:
     *
     * Next, the server transport attempts to match the request to a
     * server transaction.  It does so using the matching rules described
     * in Section 17.2.3.  If a matching server transaction is found, the
     * request is passed to that transaction for processing.  If no match
     * is found, the request is passed to the core, which may decide to
     * construct a new server transaction for that request.
     * https://tools.ietf.org/html/rfc6026#section-8.10
     * @param message - Incoming request message from transport layer.
     */
    UserAgentCore.prototype.receiveRequestFromTransport = function (message) {
        // When a request is received from the network by the server, it has to
        // be matched to an existing transaction.  This is accomplished in the
        // following manner.
        //
        // The branch parameter in the topmost Via header field of the request
        // is examined.  If it is present and begins with the magic cookie
        // "z9hG4bK", the request was generated by a client transaction
        // compliant to this specification.  Therefore, the branch parameter
        // will be unique across all transactions sent by that client.  The
        // request matches a transaction if:
        //
        //    1. the branch parameter in the request is equal to the one in the
        //       top Via header field of the request that created the
        //       transaction, and
        //
        //    2. the sent-by value in the top Via of the request is equal to the
        //       one in the request that created the transaction, and
        //
        //    3. the method of the request matches the one that created the
        //       transaction, except for ACK, where the method of the request
        //       that created the transaction is INVITE.
        //
        // This matching rule applies to both INVITE and non-INVITE transactions
        // alike.
        //
        //    The sent-by value is used as part of the matching process because
        //    there could be accidental or malicious duplication of branch
        //    parameters from different clients.
        // https://tools.ietf.org/html/rfc3261#section-17.2.3
        var transactionId = message.viaBranch; // FIXME: Currently only using rule 1...
        var uas = this.userAgentServers.get(transactionId);
        // When receiving an ACK that matches an existing INVITE server
        // transaction and that does not contain a branch parameter containing
        // the magic cookie defined in RFC 3261, the matching transaction MUST
        // be checked to see if it is in the "Accepted" state.  If it is, then
        // the ACK must be passed directly to the transaction user instead of
        // being absorbed by the transaction state machine.  This is necessary
        // as requests from RFC 2543 clients will not include a unique branch
        // parameter, and the mechanisms for calculating the transaction ID from
        // such a request will be the same for both INVITE and ACKs.
        // https://tools.ietf.org/html/rfc6026#section-6
        // Any ACKs received from the network while in the "Accepted" state MUST be
        // passed directly to the TU and not absorbed.
        // https://tools.ietf.org/html/rfc6026#section-7.1
        if (message.method === messages_1.C.ACK) {
            if (uas && uas.transaction.state === transactions_1.TransactionState.Accepted) {
                if (uas instanceof user_agents_1.InviteUserAgentServer) {
                    // These are ACKs matching an INVITE server transaction.
                    // These should never happen with RFC 3261 compliant user agents
                    // (would be a broken ACK to negative final response or something)
                    // but is apparently how RFC 2543 user agents do things.
                    // We are not currently supporting this case.
                    // NOTE: Not backwards compatible with RFC 2543 (no support for strict-routing).
                    this.logger.warn("Discarding out of dialog ACK after 2xx response sent on transaction " + transactionId + ".");
                    return;
                }
            }
        }
        // The CANCEL method requests that the TU at the server side cancel a
        // pending transaction.  The TU determines the transaction to be
        // cancelled by taking the CANCEL request, and then assuming that the
        // request method is anything but CANCEL or ACK and applying the
        // transaction matching procedures of Section 17.2.3.  The matching
        // transaction is the one to be cancelled.
        // https://tools.ietf.org/html/rfc3261#section-9.2
        if (message.method === messages_1.C.CANCEL) {
            if (uas) {
                // Regardless of the method of the original request, as long as the
                // CANCEL matched an existing transaction, the UAS answers the CANCEL
                // request itself with a 200 (OK) response.
                // https://tools.ietf.org/html/rfc3261#section-9.2
                this.replyStateless(message, { statusCode: 200 });
                // If the transaction for the original request still exists, the behavior
                // of the UAS on receiving a CANCEL request depends on whether it has already
                // sent a final response for the original request. If it has, the CANCEL
                // request has no effect on the processing of the original request, no
                // effect on any session state, and no effect on the responses generated
                // for the original request. If the UAS has not issued a final response
                // for the original request, its behavior depends on the method of the
                // original request. If the original request was an INVITE, the UAS
                // SHOULD immediately respond to the INVITE with a 487 (Request
                // Terminated).
                // https://tools.ietf.org/html/rfc3261#section-9.2
                if (uas.transaction instanceof transactions_1.InviteServerTransaction &&
                    uas.transaction.state === transactions_1.TransactionState.Proceeding) {
                    if (uas instanceof user_agents_1.InviteUserAgentServer) {
                        uas.receiveCancel(message);
                    }
                    // A CANCEL request has no impact on the processing of
                    // transactions with any other method defined in this specification.
                    // https://tools.ietf.org/html/rfc3261#section-9.2
                }
            }
            else {
                // If the UAS did not find a matching transaction for the CANCEL
                // according to the procedure above, it SHOULD respond to the CANCEL
                // with a 481 (Call Leg/Transaction Does Not Exist).
                // https://tools.ietf.org/html/rfc3261#section-9.2
                this.replyStateless(message, { statusCode: 481 });
            }
            return;
        }
        // If a matching server transaction is found, the request is passed to that
        // transaction for processing.
        // https://tools.ietf.org/html/rfc6026#section-8.10
        if (uas) {
            uas.transaction.receiveRequest(message);
            return;
        }
        // If no match is found, the request is passed to the core, which may decide to
        // construct a new server transaction for that request.
        // https://tools.ietf.org/html/rfc6026#section-8.10
        this.receiveRequest(message);
        return;
    };
    /**
     * UAC and UAS procedures depend strongly on two factors.  First, based
     * on whether the request or response is inside or outside of a dialog,
     * and second, based on the method of a request.  Dialogs are discussed
     * thoroughly in Section 12; they represent a peer-to-peer relationship
     * between user agents and are established by specific SIP methods, such
     * as INVITE.
     * @param message - Incoming request message.
     */
    UserAgentCore.prototype.receiveRequest = function (message) {
        // 8.2 UAS Behavior
        // UASs SHOULD process the requests in the order of the steps that
        // follow in this section (that is, starting with authentication, then
        // inspecting the method, the header fields, and so on throughout the
        // remainder of this section).
        // https://tools.ietf.org/html/rfc3261#section-8.2
        // 8.2.1 Method Inspection
        // Once a request is authenticated (or authentication is skipped), the
        // UAS MUST inspect the method of the request.  If the UAS recognizes
        // but does not support the method of a request, it MUST generate a 405
        // (Method Not Allowed) response.  Procedures for generating responses
        // are described in Section 8.2.6.  The UAS MUST also add an Allow
        // header field to the 405 (Method Not Allowed) response.  The Allow
        // header field MUST list the set of methods supported by the UAS
        // generating the message.
        // https://tools.ietf.org/html/rfc3261#section-8.2.1
        if (allowed_methods_1.AllowedMethods.indexOf(message.method) === -1) {
            var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
            this.replyStateless(message, {
                statusCode: 405,
                extraHeaders: [allowHeader]
            });
            return;
        }
        // 8.2.2 Header Inspection
        // https://tools.ietf.org/html/rfc3261#section-8.2.2
        if (!message.ruri) { // FIXME: A request message should always have an ruri
            throw new Error("Request-URI undefined.");
        }
        // 8.2.2.1 To and Request-URI
        // If the Request-URI uses a scheme not supported by the UAS, it SHOULD
        // reject the request with a 416 (Unsupported URI Scheme) response.
        // https://tools.ietf.org/html/rfc3261#section-8.2.2.1
        if (message.ruri.scheme !== "sip") {
            this.replyStateless(message, { statusCode: 416 });
            return;
        }
        // 8.2.2.1 To and Request-URI
        // If the Request-URI does not identify an address that the
        // UAS is willing to accept requests for, it SHOULD reject
        // the request with a 404 (Not Found) response.
        // https://tools.ietf.org/html/rfc3261#section-8.2.2.1
        var ruri = message.ruri;
        var ruriMatches = function (uri) {
            return !!uri && uri.user === ruri.user;
        };
        if (!ruriMatches(this.configuration.aor) &&
            !(ruriMatches(this.configuration.contact.uri) ||
                ruriMatches(this.configuration.contact.pubGruu) ||
                ruriMatches(this.configuration.contact.tempGruu))) {
            this.logger.warn("Request-URI does not point to us.");
            if (message.method !== messages_1.C.ACK) {
                this.replyStateless(message, { statusCode: 404 });
            }
            return;
        }
        // 8.2.2.1 To and Request-URI
        // Other potential sources of received Request-URIs include
        // the Contact header fields of requests and responses sent by the UA
        // that establish or refresh dialogs.
        // https://tools.ietf.org/html/rfc3261#section-8.2.2.1
        if (message.method === messages_1.C.INVITE) {
            if (!message.hasHeader("Contact")) {
                this.replyStateless(message, {
                    statusCode: 400,
                    reasonPhrase: "Missing Contact Header"
                });
                return;
            }
        }
        // 8.2.2.2 Merged Requests
        // If the request has no tag in the To header field, the UAS core MUST
        // check the request against ongoing transactions.  If the From tag,
        // Call-ID, and CSeq exactly match those associated with an ongoing
        // transaction, but the request does not match that transaction (based
        // on the matching rules in Section 17.2.3), the UAS core SHOULD
        // generate a 482 (Loop Detected) response and pass it to the server
        // transaction.
        //
        //    The same request has arrived at the UAS more than once, following
        //    different paths, most likely due to forking.  The UAS processes
        //    the first such request received and responds with a 482 (Loop
        //    Detected) to the rest of them.
        // https://tools.ietf.org/html/rfc3261#section-8.2.2.2
        if (!message.toTag) {
            var transactionId = message.viaBranch;
            if (!this.userAgentServers.has(transactionId)) {
                var mergedRequest = Array.from(this.userAgentServers.values())
                    .some(function (uas) {
                    return uas.transaction.request.fromTag === message.fromTag &&
                        uas.transaction.request.callId === message.callId &&
                        uas.transaction.request.cseq === message.cseq;
                });
                if (mergedRequest) {
                    this.replyStateless(message, { statusCode: 482 });
                    return;
                }
            }
        }
        // 8.2.2.3 Require
        // https://tools.ietf.org/html/rfc3261#section-8.2.2.3
        // TODO
        // 8.2.3 Content Processing
        // https://tools.ietf.org/html/rfc3261#section-8.2.3
        // TODO
        // 8.2.4 Applying Extensions
        // https://tools.ietf.org/html/rfc3261#section-8.2.4
        // TODO
        // 8.2.5 Processing the Request
        // Assuming all of the checks in the previous subsections are passed,
        // the UAS processing becomes method-specific.
        // https://tools.ietf.org/html/rfc3261#section-8.2.5
        // The UAS will receive the request from the transaction layer.  If the
        // request has a tag in the To header field, the UAS core computes the
        // dialog identifier corresponding to the request and compares it with
        // existing dialogs.  If there is a match, this is a mid-dialog request.
        // In that case, the UAS first applies the same processing rules for
        // requests outside of a dialog, discussed in Section 8.2.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        if (message.toTag) {
            this.receiveInsideDialogRequest(message);
        }
        else {
            this.receiveOutsideDialogRequest(message);
        }
        return;
    };
    /**
     * Once a dialog has been established between two UAs, either of them
     * MAY initiate new transactions as needed within the dialog.  The UA
     * sending the request will take the UAC role for the transaction.  The
     * UA receiving the request will take the UAS role.  Note that these may
     * be different roles than the UAs held during the transaction that
     * established the dialog.
     * https://tools.ietf.org/html/rfc3261#section-12.2
     * @param message - Incoming request message.
     */
    UserAgentCore.prototype.receiveInsideDialogRequest = function (message) {
        // NOTIFY requests are matched to such SUBSCRIBE requests if they
        // contain the same "Call-ID", a "To" header field "tag" parameter that
        // matches the "From" header field "tag" parameter of the SUBSCRIBE
        // request, and the same "Event" header field.  Rules for comparisons of
        // the "Event" header fields are described in Section 8.2.1.
        // https://tools.ietf.org/html/rfc6665#section-4.4.1
        if (message.method === messages_1.C.NOTIFY) {
            var event_1 = message.parseHeader("Event");
            if (!event_1 || !event_1.event) {
                this.replyStateless(message, { statusCode: 489 });
                return;
            }
            // FIXME: Subscriber id should also matching on event id.
            var subscriberId = message.callId + message.toTag + event_1.event;
            var subscriber = this.subscribers.get(subscriberId);
            if (subscriber) {
                var uas = new user_agents_1.NotifyUserAgentServer(this, message);
                subscriber.onNotify(uas);
                return;
            }
        }
        // Requests sent within a dialog, as any other requests, are atomic.  If
        // a particular request is accepted by the UAS, all the state changes
        // associated with it are performed.  If the request is rejected, none
        // of the state changes are performed.
        //
        //    Note that some requests, such as INVITEs, affect several pieces of
        //    state.
        //
        // The UAS will receive the request from the transaction layer.  If the
        // request has a tag in the To header field, the UAS core computes the
        // dialog identifier corresponding to the request and compares it with
        // existing dialogs.  If there is a match, this is a mid-dialog request.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        var dialogId = message.callId + message.toTag + message.fromTag;
        var dialog = this.dialogs.get(dialogId);
        if (dialog) {
            // [Sip-implementors] Reg. SIP reinvite, UPDATE and OPTIONS
            // You got the question right.
            //
            // And you got the right answer too. :-)
            //
            //   Thanks,
            //   Paul
            //
            // Robert Sparks wrote:
            // > So I've lost track of the question during the musing.
            // >
            // > I _think_ the fundamental question being asked is this:
            // >
            // > Is an endpoint required to reject (with a 481) an OPTIONS request that
            // > arrives with at to-tag but does not match any existing dialog state.
            // > (Assuming some earlier requirement hasn't forced another error code). Or
            // > is it OK if it just sends
            // > a 200 OK anyhow.
            // >
            // > My take on the collection of specs is that its _not_ ok for it to send
            // > the 200 OK anyhow and that it is required to send
            // > the 481. I base this primarily on these sentences from 11.2 in 3261:
            // >
            // >    The response to an OPTIONS is constructed using the standard rules
            // >    for a SIP response as discussed in Section 8.2.6.  The response code
            // >    chosen MUST be the same that would have been chosen had the request
            // >    been an INVITE.
            // >
            // > Did I miss the point of the question?
            // >
            // > On May 15, 2008, at 12:48 PM, Paul Kyzivat wrote:
            // >
            // >> [Including Robert in hopes of getting his insight on this.]
            // https://lists.cs.columbia.edu/pipermail/sip-implementors/2008-May/019178.html
            //
            // Requests that do not change in any way the state of a dialog may be
            // received within a dialog (for example, an OPTIONS request).  They are
            // processed as if they had been received outside the dialog.
            // https://tools.ietf.org/html/rfc3261#section-12.2.2
            if (message.method === messages_1.C.OPTIONS) {
                var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
                var acceptHeader = "Accept: " + acceptedBodyTypes.toString();
                this.replyStateless(message, {
                    statusCode: 200,
                    extraHeaders: [allowHeader, acceptHeader]
                });
                return;
            }
            // Pass the incoming request to the dialog for further handling.
            dialog.receiveRequest(message);
            return;
        }
        // The most important behaviors of a stateless UAS are the following:
        // ...
        // o  A stateless UAS MUST ignore ACK requests.
        // ...
        // https://tools.ietf.org/html/rfc3261#section-8.2.7
        if (message.method === messages_1.C.ACK) {
            // If a final response to an INVITE was sent statelessly,
            // the corresponding ACK:
            // - will not match an existing transaction
            // - may have tag in the To header field
            // - not not match any existing dialogs
            // Absorb unmatched ACKs.
            return;
        }
        // If the request has a tag in the To header field, but the dialog
        // identifier does not match any existing dialogs, the UAS may have
        // crashed and restarted, or it may have received a request for a
        // different (possibly failed) UAS (the UASs can construct the To tags
        // so that a UAS can identify that the tag was for a UAS for which it is
        // providing recovery).  Another possibility is that the incoming
        // request has been simply mis-routed.  Based on the To tag, the UAS MAY
        // either accept or reject the request.  Accepting the request for
        // acceptable To tags provides robustness, so that dialogs can persist
        // even through crashes.  UAs wishing to support this capability must
        // take into consideration some issues such as choosing monotonically
        // increasing CSeq sequence numbers even across reboots, reconstructing
        // the route set, and accepting out-of-range RTP timestamps and sequence
        // numbers.
        //
        // If the UAS wishes to reject the request because it does not wish to
        // recreate the dialog, it MUST respond to the request with a 481
        // (Call/Transaction Does Not Exist) status code and pass that to the
        // server transaction.
        // https://tools.ietf.org/html/rfc3261#section-12.2.2
        this.replyStateless(message, { statusCode: 481 });
        return;
    };
    /**
     * Assuming all of the checks in the previous subsections are passed,
     * the UAS processing becomes method-specific.
     *  https://tools.ietf.org/html/rfc3261#section-8.2.5
     * @param message - Incoming request message.
     */
    UserAgentCore.prototype.receiveOutsideDialogRequest = function (message) {
        switch (message.method) {
            case messages_1.C.ACK:
                // Absorb stray out of dialog ACKs
                break;
            case messages_1.C.BYE:
                // If the BYE does not match an existing dialog, the UAS core SHOULD
                // generate a 481 (Call/Transaction Does Not Exist) response and pass
                // that to the server transaction. This rule means that a BYE sent
                // without tags by a UAC will be rejected.
                // https://tools.ietf.org/html/rfc3261#section-15.1.2
                this.replyStateless(message, { statusCode: 481 });
                break;
            case messages_1.C.CANCEL:
                throw new Error("Unexpected out of dialog request method " + message.method + ".");
                break;
            case messages_1.C.INFO:
                // Use of the INFO method does not constitute a separate dialog usage.
                // INFO messages are always part of, and share the fate of, an invite
                // dialog usage [RFC5057].  INFO messages cannot be sent as part of
                // other dialog usages, or outside an existing dialog.
                // https://tools.ietf.org/html/rfc6086#section-1
                this.replyStateless(message, { statusCode: 405 }); // Should never happen
                break;
            case messages_1.C.INVITE:
                // https://tools.ietf.org/html/rfc3261#section-13.3.1
                {
                    var uas = new user_agents_1.InviteUserAgentServer(this, message);
                    this.delegate.onInvite ?
                        this.delegate.onInvite(uas) :
                        uas.reject();
                }
                break;
            case messages_1.C.MESSAGE:
                // MESSAGE requests are discouraged inside a dialog.  Implementations
                // are restricted from creating a usage for the purpose of carrying a
                // sequence of MESSAGE requests (though some implementations use it that
                // way, against the standard recommendation).
                // https://tools.ietf.org/html/rfc5057#section-5.3
                {
                    var uas = new user_agents_1.MessageUserAgentServer(this, message);
                    this.delegate.onMessage ?
                        this.delegate.onMessage(uas) :
                        uas.accept();
                }
                break;
            case messages_1.C.NOTIFY:
                // Obsoleted by: RFC 6665
                // If any non-SUBSCRIBE mechanisms are defined to create subscriptions,
                // it is the responsibility of the parties defining those mechanisms to
                // ensure that correlation of a NOTIFY message to the corresponding
                // subscription is possible.  Designers of such mechanisms are also
                // warned to make a distinction between sending a NOTIFY message to a
                // subscriber who is aware of the subscription, and sending a NOTIFY
                // message to an unsuspecting node.  The latter behavior is invalid, and
                // MUST receive a "481 Subscription does not exist" response (unless
                // some other 400- or 500-class error code is more applicable), as
                // described in section 3.2.4.  In other words, knowledge of a
                // subscription must exist in both the subscriber and the notifier to be
                // valid, even if installed via a non-SUBSCRIBE mechanism.
                // https://tools.ietf.org/html/rfc3265#section-3.2
                //
                // NOTIFY requests are sent to inform subscribers of changes in state to
                // which the subscriber has a subscription.  Subscriptions are created
                // using the SUBSCRIBE method.  In legacy implementations, it is
                // possible that other means of subscription creation have been used.
                // However, this specification does not allow the creation of
                // subscriptions except through SUBSCRIBE requests and (for backwards-
                // compatibility) REFER requests [RFC3515].
                // https://tools.ietf.org/html/rfc6665#section-3.2
                {
                    var uas = new user_agents_1.NotifyUserAgentServer(this, message);
                    this.delegate.onNotify ?
                        this.delegate.onNotify(uas) :
                        uas.reject({ statusCode: 405 });
                }
                break;
            case messages_1.C.OPTIONS:
                // https://tools.ietf.org/html/rfc3261#section-11.2
                {
                    var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
                    var acceptHeader = "Accept: " + acceptedBodyTypes.toString();
                    this.replyStateless(message, {
                        statusCode: 200,
                        extraHeaders: [allowHeader, acceptHeader]
                    });
                }
                break;
            case messages_1.C.REFER:
                // https://tools.ietf.org/html/rfc3515#section-2.4.2
                {
                    var uas = new user_agents_1.ReferUserAgentServer(this, message);
                    this.delegate.onRefer ?
                        this.delegate.onRefer(uas) :
                        uas.reject({ statusCode: 405 });
                }
                break;
            case messages_1.C.REGISTER:
                // https://tools.ietf.org/html/rfc3261#section-10.3
                {
                    var uas = new user_agents_1.RegisterUserAgentServer(this, message);
                    this.delegate.onRegister ?
                        this.delegate.onRegister(uas) :
                        uas.reject({ statusCode: 405 });
                }
                break;
            case messages_1.C.SUBSCRIBE:
                // https://tools.ietf.org/html/rfc6665#section-4.2
                {
                    var uas = new user_agents_1.SubscribeUserAgentServer(this, message);
                    this.delegate.onSubscribe ?
                        this.delegate.onSubscribe(uas) :
                        uas.reject({ statusCode: 480 });
                }
                break;
            default:
                throw new Error("Unexpected out of dialog request method " + message.method + ".");
        }
        return;
    };
    /**
     * Responses are first processed by the transport layer and then passed
     * up to the transaction layer.  The transaction layer performs its
     * processing and then passes the response up to the TU.  The majority
     * of response processing in the TU is method specific.  However, there
     * are some general behaviors independent of the method.
     * https://tools.ietf.org/html/rfc3261#section-8.1.3
     * @param message - Incoming response message from transport layer.
     */
    UserAgentCore.prototype.receiveResponseFromTransport = function (message) {
        // 8.1.3.1 Transaction Layer Errors
        // https://tools.ietf.org/html/rfc3261#section-8.1.3.1
        // Handled by transaction layer callbacks.
        // 8.1.3.2 Unrecognized Responses
        // https://tools.ietf.org/html/rfc3261#section-8.1.3.1
        // TODO
        // 8.1.3.3 Vias
        // https://tools.ietf.org/html/rfc3261#section-8.1.3.3
        if (message.getHeaders("via").length > 1) {
            this.logger.warn("More than one Via header field present in the response, dropping");
            return;
        }
        // 8.1.3.4 Processing 3xx Responses
        // https://tools.ietf.org/html/rfc3261#section-8.1.3.4
        // TODO
        // 8.1.3.5 Processing 4xx Responses
        // https://tools.ietf.org/html/rfc3261#section-8.1.3.5
        // TODO
        // When the transport layer in the client receives a response, it has to
        // determine which client transaction will handle the response, so that
        // the processing of Sections 17.1.1 and 17.1.2 can take place.  The
        // branch parameter in the top Via header field is used for this
        // purpose.  A response matches a client transaction under two
        // conditions:
        //
        //    1.  If the response has the same value of the branch parameter in
        //        the top Via header field as the branch parameter in the top
        //        Via header field of the request that created the transaction.
        //
        //    2.  If the method parameter in the CSeq header field matches the
        //        method of the request that created the transaction.  The
        //        method is needed since a CANCEL request constitutes a
        //        different transaction, but shares the same value of the branch
        //        parameter.
        // https://tools.ietf.org/html/rfc3261#section-17.1.3
        var userAgentClientId = message.viaBranch + message.method;
        var userAgentClient = this.userAgentClients.get(userAgentClientId);
        // The client transport uses the matching procedures of Section
        // 17.1.3 to attempt to match the response to an existing
        // transaction.  If there is a match, the response MUST be passed to
        // that transaction.  Otherwise, any element other than a stateless
        // proxy MUST silently discard the response.
        // https://tools.ietf.org/html/rfc6026#section-8.9
        if (userAgentClient) {
            userAgentClient.transaction.receiveResponse(message);
        }
        else {
            this.logger.warn("Discarding unmatched " + message.statusCode + " response to " + message.method + " " + userAgentClientId + ".");
        }
    };
    return UserAgentCore;
}());
exports.UserAgentCore = UserAgentCore;


/***/ }),
/* 66 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
tslib_1.__exportStar(__webpack_require__(41), exports);
tslib_1.__exportStar(__webpack_require__(43), exports);
tslib_1.__exportStar(__webpack_require__(67), exports);
tslib_1.__exportStar(__webpack_require__(45), exports);
tslib_1.__exportStar(__webpack_require__(46), exports);
tslib_1.__exportStar(__webpack_require__(68), exports);
tslib_1.__exportStar(__webpack_require__(69), exports);
tslib_1.__exportStar(__webpack_require__(70), exports);
tslib_1.__exportStar(__webpack_require__(71), exports);
tslib_1.__exportStar(__webpack_require__(47), exports);
tslib_1.__exportStar(__webpack_require__(48), exports);
tslib_1.__exportStar(__webpack_require__(72), exports);
tslib_1.__exportStar(__webpack_require__(49), exports);
tslib_1.__exportStar(__webpack_require__(50), exports);
tslib_1.__exportStar(__webpack_require__(51), exports);
tslib_1.__exportStar(__webpack_require__(52), exports);
tslib_1.__exportStar(__webpack_require__(59), exports);
tslib_1.__exportStar(__webpack_require__(73), exports);
tslib_1.__exportStar(__webpack_require__(53), exports);
tslib_1.__exportStar(__webpack_require__(54), exports);
tslib_1.__exportStar(__webpack_require__(74), exports);
tslib_1.__exportStar(__webpack_require__(75), exports);
tslib_1.__exportStar(__webpack_require__(76), exports);
tslib_1.__exportStar(__webpack_require__(77), exports);
tslib_1.__exportStar(__webpack_require__(42), exports);
tslib_1.__exportStar(__webpack_require__(44), exports);


/***/ }),
/* 67 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * CANCEL UAC.
 * @public
 */
var CancelUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(CancelUserAgentClient, _super);
    function CancelUserAgentClient(core, message, delegate) {
        return _super.call(this, transactions_1.NonInviteClientTransaction, core, message, delegate) || this;
    }
    return CancelUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.CancelUserAgentClient = CancelUserAgentClient;


/***/ }),
/* 68 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var dialogs_1 = __webpack_require__(3);
var session_1 = __webpack_require__(24);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * INVITE UAC.
 * @remarks
 * 13 Initiating a Session
 * https://tools.ietf.org/html/rfc3261#section-13
 * 13.1 Overview
 * https://tools.ietf.org/html/rfc3261#section-13.1
 * 13.2 UAC Processing
 * https://tools.ietf.org/html/rfc3261#section-13.2
 * @public
 */
var InviteUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(InviteUserAgentClient, _super);
    function InviteUserAgentClient(core, message, delegate) {
        var _this = _super.call(this, transactions_1.InviteClientTransaction, core, message, delegate) || this;
        _this.confirmedDialogAcks = new Map();
        _this.confirmedDialogs = new Map();
        _this.earlyDialogs = new Map();
        _this.delegate = delegate;
        return _this;
    }
    InviteUserAgentClient.prototype.dispose = function () {
        // The UAC core considers the INVITE transaction completed 64*T1 seconds
        // after the reception of the first 2xx response.  At this point all the
        // early dialogs that have not transitioned to established dialogs are
        // terminated.  Once the INVITE transaction is considered completed by
        // the UAC core, no more new 2xx responses are expected to arrive.
        //
        // If, after acknowledging any 2xx response to an INVITE, the UAC does
        // not want to continue with that dialog, then the UAC MUST terminate
        // the dialog by sending a BYE request as described in Section 15.
        // https://tools.ietf.org/html/rfc3261#section-13.2.2.4
        this.earlyDialogs.forEach(function (earlyDialog) { return earlyDialog.dispose(); });
        this.earlyDialogs.clear();
        _super.prototype.dispose.call(this);
    };
    /**
     * Special case for transport error while sending ACK.
     * @param error - Transport error
     */
    InviteUserAgentClient.prototype.onTransportError = function (error) {
        if (this.transaction.state === transactions_1.TransactionState.Calling) {
            return _super.prototype.onTransportError.call(this, error);
        }
        // If not in 'calling' state, the transport error occurred while sending an ACK.
        this.logger.error(error.message);
        this.logger.error("User agent client request transport error while sending ACK.");
    };
    /**
     * Once the INVITE has been passed to the INVITE client transaction, the
     * UAC waits for responses for the INVITE.
     * https://tools.ietf.org/html/rfc3261#section-13.2.2
     * @param incomingResponse - Incoming response to INVITE request.
     */
    InviteUserAgentClient.prototype.receiveResponse = function (message) {
        var _this = this;
        if (!this.authenticationGuard(message)) {
            return;
        }
        var statusCode = message.statusCode ? message.statusCode.toString() : "";
        if (!statusCode) {
            throw new Error("Response status code undefined.");
        }
        switch (true) {
            case /^100$/.test(statusCode):
                if (this.delegate && this.delegate.onTrying) {
                    this.delegate.onTrying({ message: message });
                }
                return;
            case /^1[0-9]{2}$/.test(statusCode):
                // Zero, one or multiple provisional responses may arrive before one or
                // more final responses are received.  Provisional responses for an
                // INVITE request can create "early dialogs".  If a provisional response
                // has a tag in the To field, and if the dialog ID of the response does
                // not match an existing dialog, one is constructed using the procedures
                // defined in Section 12.1.2.
                //
                // The early dialog will only be needed if the UAC needs to send a
                // request to its peer within the dialog before the initial INVITE
                // transaction completes.  Header fields present in a provisional
                // response are applicable as long as the dialog is in the early state
                // (for example, an Allow header field in a provisional response
                // contains the methods that can be used in the dialog while this is in
                // the early state).
                // https://tools.ietf.org/html/rfc3261#section-13.2.2.1
                {
                    // Provisional without to tag, no dialog to create.
                    if (!message.toTag) {
                        this.logger.warn("Non-100 1xx INVITE response received without a to tag, dropping.");
                        return;
                    }
                    // Compute dialog state.
                    var dialogState = dialogs_1.Dialog.initialDialogStateForUserAgentClient(this.message, message);
                    // Have existing early dialog or create a new one.
                    var earlyDialog = this.earlyDialogs.get(dialogState.id);
                    if (!earlyDialog) {
                        var transaction = this.transaction;
                        if (!(transaction instanceof transactions_1.InviteClientTransaction)) {
                            throw new Error("Transaction not instance of InviteClientTransaction.");
                        }
                        earlyDialog = new dialogs_1.SessionDialog(transaction, this.core, dialogState);
                        this.earlyDialogs.set(earlyDialog.id, earlyDialog);
                    }
                    // Guard against out of order reliable provisional responses.
                    // Note that this is where the rseq tracking is done.
                    if (!earlyDialog.reliableSequenceGuard(message)) {
                        this.logger.warn("1xx INVITE reliable response received out of order, dropping.");
                        return;
                    }
                    // If the initial offer is in an INVITE, the answer MUST be in a
                    // reliable non-failure message from UAS back to UAC which is
                    // correlated to that INVITE.  For this specification, that is
                    // only the final 2xx response to that INVITE.  That same exact
                    // answer MAY also be placed in any provisional responses sent
                    // prior to the answer.  The UAC MUST treat the first session
                    // description it receives as the answer, and MUST ignore any
                    // session descriptions in subsequent responses to the initial
                    // INVITE.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    if (earlyDialog.signalingState === session_1.SignalingState.Initial ||
                        earlyDialog.signalingState === session_1.SignalingState.HaveLocalOffer) {
                        earlyDialog.signalingStateTransition(message);
                    }
                    // Pass response to delegate.
                    var session_2 = earlyDialog;
                    if (this.delegate && this.delegate.onProgress) {
                        this.delegate.onProgress({
                            message: message,
                            session: session_2,
                            prack: function (options) {
                                var outgoingPrackRequest = session_2.prack(undefined, options);
                                return outgoingPrackRequest;
                            }
                        });
                    }
                }
                return;
            case /^2[0-9]{2}$/.test(statusCode):
                // Multiple 2xx responses may arrive at the UAC for a single INVITE
                // request due to a forking proxy.  Each response is distinguished by
                // the tag parameter in the To header field, and each represents a
                // distinct dialog, with a distinct dialog identifier.
                //
                // If the dialog identifier in the 2xx response matches the dialog
                // identifier of an existing dialog, the dialog MUST be transitioned to
                // the "confirmed" state, and the route set for the dialog MUST be
                // recomputed based on the 2xx response using the procedures of Section
                // 12.2.1.2.  Otherwise, a new dialog in the "confirmed" state MUST be
                // constructed using the procedures of Section 12.1.2.
                // https://tools.ietf.org/html/rfc3261#section-13.2.2.4
                {
                    // Compute dialog state.
                    var dialogState = dialogs_1.Dialog.initialDialogStateForUserAgentClient(this.message, message);
                    // NOTE: Currently our transaction layer is caching the 2xx ACKs and
                    // handling retransmissions of the ACK which is an approach which is
                    // not to spec. In any event, this block is intended to provide a to
                    // spec implementation of ACK retransmissions, but it should not be
                    // hit currently.
                    var dialog = this.confirmedDialogs.get(dialogState.id);
                    if (dialog) {
                        // Once the ACK has been constructed, the procedures of [4] are used to
                        // determine the destination address, port and transport.  However, the
                        // request is passed to the transport layer directly for transmission,
                        // rather than a client transaction.  This is because the UAC core
                        // handles retransmissions of the ACK, not the transaction layer.  The
                        // ACK MUST be passed to the client transport every time a
                        // retransmission of the 2xx final response that triggered the ACK
                        // arrives.
                        // https://tools.ietf.org/html/rfc3261#section-13.2.2.4
                        var outgoingAckRequest = this.confirmedDialogAcks.get(dialogState.id);
                        if (outgoingAckRequest) {
                            var transaction = this.transaction;
                            if (!(transaction instanceof transactions_1.InviteClientTransaction)) {
                                throw new Error("Client transaction not instance of InviteClientTransaction.");
                            }
                            transaction.ackResponse(outgoingAckRequest.message);
                        }
                        else {
                            // If still waiting for an ACK, drop the retransmission of the 2xx final response.
                        }
                        return;
                    }
                    // If the dialog identifier in the 2xx response matches the dialog
                    // identifier of an existing dialog, the dialog MUST be transitioned to
                    // the "confirmed" state, and the route set for the dialog MUST be
                    // recomputed based on the 2xx response using the procedures of Section
                    // 12.2.1.2. Otherwise, a new dialog in the "confirmed" state MUST be
                    // constructed using the procedures of Section 12.1.2.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.2.4
                    dialog = this.earlyDialogs.get(dialogState.id);
                    if (dialog) {
                        dialog.confirm();
                        dialog.recomputeRouteSet(message);
                        this.earlyDialogs.delete(dialog.id);
                        this.confirmedDialogs.set(dialog.id, dialog);
                    }
                    else {
                        var transaction = this.transaction;
                        if (!(transaction instanceof transactions_1.InviteClientTransaction)) {
                            throw new Error("Transaction not instance of InviteClientTransaction.");
                        }
                        dialog = new dialogs_1.SessionDialog(transaction, this.core, dialogState);
                        this.confirmedDialogs.set(dialog.id, dialog);
                    }
                    // If the initial offer is in an INVITE, the answer MUST be in a
                    // reliable non-failure message from UAS back to UAC which is
                    // correlated to that INVITE.  For this specification, that is
                    // only the final 2xx response to that INVITE.  That same exact
                    // answer MAY also be placed in any provisional responses sent
                    // prior to the answer.  The UAC MUST treat the first session
                    // description it receives as the answer, and MUST ignore any
                    // session descriptions in subsequent responses to the initial
                    // INVITE.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    if (dialog.signalingState === session_1.SignalingState.Initial ||
                        dialog.signalingState === session_1.SignalingState.HaveLocalOffer) {
                        dialog.signalingStateTransition(message);
                    }
                    // Session Initiated! :)
                    var session_3 = dialog;
                    // The UAC core MUST generate an ACK request for each 2xx received from
                    // the transaction layer.  The header fields of the ACK are constructed
                    // in the same way as for any request sent within a dialog (see Section
                    // 12) with the exception of the CSeq and the header fields related to
                    // authentication.  The sequence number of the CSeq header field MUST be
                    // the same as the INVITE being acknowledged, but the CSeq method MUST
                    // be ACK.  The ACK MUST contain the same credentials as the INVITE.  If
                    // the 2xx contains an offer (based on the rules above), the ACK MUST
                    // carry an answer in its body.  If the offer in the 2xx response is not
                    // acceptable, the UAC core MUST generate a valid answer in the ACK and
                    // then send a BYE immediately.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.2.4
                    if (this.delegate && this.delegate.onAccept) {
                        this.delegate.onAccept({
                            message: message,
                            session: session_3,
                            ack: function (options) {
                                var outgoingAckRequest = session_3.ack(options);
                                _this.confirmedDialogAcks.set(session_3.id, outgoingAckRequest);
                                return outgoingAckRequest;
                            }
                        });
                    }
                    else {
                        var outgoingAckRequest = session_3.ack();
                        this.confirmedDialogAcks.set(session_3.id, outgoingAckRequest);
                    }
                }
                return;
            case /^3[0-9]{2}$/.test(statusCode):
                // 12.3 Termination of a Dialog
                //
                // Independent of the method, if a request outside of a dialog generates
                // a non-2xx final response, any early dialogs created through
                // provisional responses to that request are terminated.  The mechanism
                // for terminating confirmed dialogs is method specific.  In this
                // specification, the BYE method terminates a session and the dialog
                // associated with it.  See Section 15 for details.
                // https://tools.ietf.org/html/rfc3261#section-12.3
                // All early dialogs are considered terminated upon reception of the
                // non-2xx final response.
                //
                // After having received the non-2xx final response the UAC core
                // considers the INVITE transaction completed.  The INVITE client
                // transaction handles the generation of ACKs for the response (see
                // Section 17).
                // https://tools.ietf.org/html/rfc3261#section-13.2.2.3
                this.earlyDialogs.forEach(function (earlyDialog) { return earlyDialog.dispose(); });
                this.earlyDialogs.clear();
                // A 3xx response may contain one or more Contact header field values
                // providing new addresses where the callee might be reachable.
                // Depending on the status code of the 3xx response (see Section 21.3),
                // the UAC MAY choose to try those new addresses.
                // https://tools.ietf.org/html/rfc3261#section-13.2.2.2
                if (this.delegate && this.delegate.onRedirect) {
                    this.delegate.onRedirect({ message: message });
                }
                return;
            case /^[4-6][0-9]{2}$/.test(statusCode):
                // 12.3 Termination of a Dialog
                //
                // Independent of the method, if a request outside of a dialog generates
                // a non-2xx final response, any early dialogs created through
                // provisional responses to that request are terminated.  The mechanism
                // for terminating confirmed dialogs is method specific.  In this
                // specification, the BYE method terminates a session and the dialog
                // associated with it.  See Section 15 for details.
                // https://tools.ietf.org/html/rfc3261#section-12.3
                // All early dialogs are considered terminated upon reception of the
                // non-2xx final response.
                //
                // After having received the non-2xx final response the UAC core
                // considers the INVITE transaction completed.  The INVITE client
                // transaction handles the generation of ACKs for the response (see
                // Section 17).
                // https://tools.ietf.org/html/rfc3261#section-13.2.2.3
                this.earlyDialogs.forEach(function (earlyDialog) { return earlyDialog.dispose(); });
                this.earlyDialogs.clear();
                // A single non-2xx final response may be received for the INVITE.  4xx,
                // 5xx and 6xx responses may contain a Contact header field value
                // indicating the location where additional information about the error
                // can be found.  Subsequent final responses (which would only arrive
                // under error conditions) MUST be ignored.
                // https://tools.ietf.org/html/rfc3261#section-13.2.2.3
                if (this.delegate && this.delegate.onReject) {
                    this.delegate.onReject({ message: message });
                }
                return;
            default:
                throw new Error("Invalid status code " + statusCode);
        }
        throw new Error("Executing what should be an unreachable code path receiving " + statusCode + " response.");
    };
    return InviteUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.InviteUserAgentClient = InviteUserAgentClient;


/***/ }),
/* 69 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var dialogs_1 = __webpack_require__(3);
var exceptions_1 = __webpack_require__(31);
var session_1 = __webpack_require__(24);
var transactions_1 = __webpack_require__(27);
var allowed_methods_1 = __webpack_require__(58);
var user_agent_server_1 = __webpack_require__(44);
/**
 * INVITE UAS.
 * @remarks
 * 13 Initiating a Session
 * https://tools.ietf.org/html/rfc3261#section-13
 * 13.1 Overview
 * https://tools.ietf.org/html/rfc3261#section-13.1
 * 13.3 UAS Processing
 * https://tools.ietf.org/html/rfc3261#section-13.3
 * @public
 */
var InviteUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(InviteUserAgentServer, _super);
    function InviteUserAgentServer(core, message, delegate) {
        var _this = _super.call(this, transactions_1.InviteServerTransaction, core, message, delegate) || this;
        _this.core = core;
        return _this;
    }
    InviteUserAgentServer.prototype.dispose = function () {
        if (this.earlyDialog) {
            this.earlyDialog.dispose();
        }
        _super.prototype.dispose.call(this);
    };
    /**
     * 13.3.1.4 The INVITE is Accepted
     * The UAS core generates a 2xx response.  This response establishes a
     * dialog, and therefore follows the procedures of Section 12.1.1 in
     * addition to those of Section 8.2.6.
     * https://tools.ietf.org/html/rfc3261#section-13.3.1.4
     * @param options - Accept options bucket.
     */
    InviteUserAgentServer.prototype.accept = function (options) {
        if (options === void 0) { options = { statusCode: 200 }; }
        if (!this.acceptable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not acceptable in state " + this.transaction.state + ".");
        }
        // This response establishes a dialog...
        // https://tools.ietf.org/html/rfc3261#section-13.3.1.4
        if (!this.confirmedDialog) {
            if (this.earlyDialog) {
                this.earlyDialog.confirm();
                this.confirmedDialog = this.earlyDialog;
                this.earlyDialog = undefined;
            }
            else {
                var transaction = this.transaction;
                if (!(transaction instanceof transactions_1.InviteServerTransaction)) {
                    throw new Error("Transaction not instance of InviteClientTransaction.");
                }
                var state = dialogs_1.Dialog.initialDialogStateForUserAgentServer(this.message, this.toTag);
                this.confirmedDialog = new dialogs_1.SessionDialog(transaction, this.core, state);
            }
        }
        // When a UAS responds to a request with a response that establishes a
        // dialog (such as a 2xx to INVITE), the UAS MUST copy all Record-Route
        // header field values from the request into the response (including the
        // URIs, URI parameters, and any Record-Route header field parameters,
        // whether they are known or unknown to the UAS) and MUST maintain the
        // order of those values.  The UAS MUST add a Contact header field to
        // the response.  The Contact header field contains an address where the
        // UAS would like to be contacted for subsequent requests in the dialog
        // (which includes the ACK for a 2xx response in the case of an INVITE).
        // Generally, the host portion of this URI is the IP address or FQDN of
        // the host.  The URI provided in the Contact header field MUST be a SIP
        // or SIPS URI.  If the request that initiated the dialog contained a
        // SIPS URI in the Request-URI or in the top Record-Route header field
        // value, if there was any, or the Contact header field if there was no
        // Record-Route header field, the Contact header field in the response
        // MUST be a SIPS URI.  The URI SHOULD have global scope (that is, the
        // same URI can be used in messages outside this dialog).  The same way,
        // the scope of the URI in the Contact header field of the INVITE is not
        // limited to this dialog either.  It can therefore be used in messages
        // to the UAC even outside this dialog.
        // https://tools.ietf.org/html/rfc3261#section-12.1.1
        var recordRouteHeader = this.message
            .getHeaders("record-route")
            .map(function (header) { return "Record-Route: " + header; });
        var contactHeader = "Contact: " + this.core.configuration.contact.toString();
        // A 2xx response to an INVITE SHOULD contain the Allow header field and
        // the Supported header field, and MAY contain the Accept header field.
        // Including these header fields allows the UAC to determine the
        // features and extensions supported by the UAS for the duration of the
        // call, without probing.
        // https://tools.ietf.org/html/rfc3261#section-13.3.1.4
        // FIXME: TODO: This should not be hard coded.
        var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
        // FIXME: TODO: Supported header (see reply())
        // FIXME: TODO: Accept header
        // If the INVITE request contained an offer, and the UAS had not yet
        // sent an answer, the 2xx MUST contain an answer.  If the INVITE did
        // not contain an offer, the 2xx MUST contain an offer if the UAS had
        // not yet sent an offer.
        // https://tools.ietf.org/html/rfc3261#section-13.3.1.4
        if (!options.body) {
            if (this.confirmedDialog.signalingState === session_1.SignalingState.Stable) {
                options.body = this.confirmedDialog.answer; // resend the answer sent in provisional response
            }
            else if (this.confirmedDialog.signalingState === session_1.SignalingState.Initial ||
                this.confirmedDialog.signalingState === session_1.SignalingState.HaveRemoteOffer) {
                throw new Error("Response must have a body.");
            }
        }
        options.statusCode = options.statusCode || 200;
        options.extraHeaders = options.extraHeaders || [];
        options.extraHeaders = options.extraHeaders.concat(recordRouteHeader);
        options.extraHeaders.push(allowHeader);
        options.extraHeaders.push(contactHeader);
        var response = _super.prototype.accept.call(this, options);
        var session = this.confirmedDialog;
        var result = tslib_1.__assign(tslib_1.__assign({}, response), { session: session });
        // Update dialog signaling state
        if (options.body) {
            // Once the UAS has sent or received an answer to the initial
            // offer, it MUST NOT generate subsequent offers in any responses
            // to the initial INVITE.  This means that a UAS based on this
            // specification alone can never generate subsequent offers until
            // completion of the initial transaction.
            // https://tools.ietf.org/html/rfc3261#section-13.2.1
            if (this.confirmedDialog.signalingState !== session_1.SignalingState.Stable) {
                this.confirmedDialog.signalingStateTransition(options.body);
            }
        }
        return result;
    };
    /**
     * 13.3.1.1 Progress
     * If the UAS is not able to answer the invitation immediately, it can
     * choose to indicate some kind of progress to the UAC (for example, an
     * indication that a phone is ringing).  This is accomplished with a
     * provisional response between 101 and 199.  These provisional
     * responses establish early dialogs and therefore follow the procedures
     * of Section 12.1.1 in addition to those of Section 8.2.6.  A UAS MAY
     * send as many provisional responses as it likes.  Each of these MUST
     * indicate the same dialog ID.  However, these will not be delivered
     * reliably.
     *
     * If the UAS desires an extended period of time to answer the INVITE,
     * it will need to ask for an "extension" in order to prevent proxies
     * from canceling the transaction.  A proxy has the option of canceling
     * a transaction when there is a gap of 3 minutes between responses in a
     * transaction.  To prevent cancellation, the UAS MUST send a non-100
     * provisional response at every minute, to handle the possibility of
     * lost provisional responses.
     * https://tools.ietf.org/html/rfc3261#section-13.3.1.1
     * @param options - Progress options bucket.
     */
    InviteUserAgentServer.prototype.progress = function (options) {
        if (options === void 0) { options = { statusCode: 180 }; }
        if (!this.progressable) {
            throw new exceptions_1.TransactionStateError(this.message.method + " not progressable in state " + this.transaction.state + ".");
        }
        // This response establishes a dialog...
        // https://tools.ietf.org/html/rfc3261#section-13.3.1.4
        if (!this.earlyDialog) {
            var transaction = this.transaction;
            if (!(transaction instanceof transactions_1.InviteServerTransaction)) {
                throw new Error("Transaction not instance of InviteClientTransaction.");
            }
            var state = dialogs_1.Dialog.initialDialogStateForUserAgentServer(this.message, this.toTag, true);
            this.earlyDialog = new dialogs_1.SessionDialog(transaction, this.core, state);
        }
        // When a UAS responds to a request with a response that establishes a
        // dialog (such as a 2xx to INVITE), the UAS MUST copy all Record-Route
        // header field values from the request into the response (including the
        // URIs, URI parameters, and any Record-Route header field parameters,
        // whether they are known or unknown to the UAS) and MUST maintain the
        // order of those values.  The UAS MUST add a Contact header field to
        // the response.  The Contact header field contains an address where the
        // UAS would like to be contacted for subsequent requests in the dialog
        // (which includes the ACK for a 2xx response in the case of an INVITE).
        // Generally, the host portion of this URI is the IP address or FQDN of
        // the host.  The URI provided in the Contact header field MUST be a SIP
        // or SIPS URI.  If the request that initiated the dialog contained a
        // SIPS URI in the Request-URI or in the top Record-Route header field
        // value, if there was any, or the Contact header field if there was no
        // Record-Route header field, the Contact header field in the response
        // MUST be a SIPS URI.  The URI SHOULD have global scope (that is, the
        // same URI can be used in messages outside this dialog).  The same way,
        // the scope of the URI in the Contact header field of the INVITE is not
        // limited to this dialog either.  It can therefore be used in messages
        // to the UAC even outside this dialog.
        // https://tools.ietf.org/html/rfc3261#section-12.1.1
        var recordRouteHeader = this.message
            .getHeaders("record-route")
            .map(function (header) { return "Record-Route: " + header; });
        var contactHeader = "Contact: " + this.core.configuration.contact;
        options.extraHeaders = options.extraHeaders || [];
        options.extraHeaders = options.extraHeaders.concat(recordRouteHeader);
        options.extraHeaders.push(contactHeader);
        var response = _super.prototype.progress.call(this, options);
        var session = this.earlyDialog;
        var result = tslib_1.__assign(tslib_1.__assign({}, response), { session: session });
        // Update dialog signaling state
        if (options.body) {
            // Once the UAS has sent or received an answer to the initial
            // offer, it MUST NOT generate subsequent offers in any responses
            // to the initial INVITE.  This means that a UAS based on this
            // specification alone can never generate subsequent offers until
            // completion of the initial transaction.
            // https://tools.ietf.org/html/rfc3261#section-13.2.1
            if (this.earlyDialog.signalingState !== session_1.SignalingState.Stable) {
                this.earlyDialog.signalingStateTransition(options.body);
            }
        }
        return result;
    };
    /**
     * 13.3.1.2 The INVITE is Redirected
     * If the UAS decides to redirect the call, a 3xx response is sent.  A
     * 300 (Multiple Choices), 301 (Moved Permanently) or 302 (Moved
     * Temporarily) response SHOULD contain a Contact header field
     * containing one or more URIs of new addresses to be tried.  The
     * response is passed to the INVITE server transaction, which will deal
     * with its retransmissions.
     * https://tools.ietf.org/html/rfc3261#section-13.3.1.2
     * @param contacts - Contacts to redirect to.
     * @param options - Redirect options bucket.
     */
    InviteUserAgentServer.prototype.redirect = function (contacts, options) {
        if (options === void 0) { options = { statusCode: 302 }; }
        return _super.prototype.redirect.call(this, contacts, options);
    };
    /**
     * 13.3.1.3 The INVITE is Rejected
     * A common scenario occurs when the callee is currently not willing or
     * able to take additional calls at this end system.  A 486 (Busy Here)
     * SHOULD be returned in such a scenario.
     * https://tools.ietf.org/html/rfc3261#section-13.3.1.3
     * @param options - Reject options bucket.
     */
    InviteUserAgentServer.prototype.reject = function (options) {
        if (options === void 0) { options = { statusCode: 486 }; }
        return _super.prototype.reject.call(this, options);
    };
    return InviteUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.InviteUserAgentServer = InviteUserAgentServer;


/***/ }),
/* 70 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * MESSAGE UAS.
 * @public
 */
var MessageUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(MessageUserAgentClient, _super);
    function MessageUserAgentClient(core, message, delegate) {
        return _super.call(this, transactions_1.NonInviteClientTransaction, core, message, delegate) || this;
    }
    return MessageUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.MessageUserAgentClient = MessageUserAgentClient;


/***/ }),
/* 71 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * MESSAGE UAS.
 * @public
 */
var MessageUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(MessageUserAgentServer, _super);
    function MessageUserAgentServer(core, message, delegate) {
        var _this = _super.call(this, transactions_1.NonInviteServerTransaction, core, message, delegate) || this;
        _this.core = core;
        return _this;
    }
    return MessageUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.MessageUserAgentServer = MessageUserAgentServer;


/***/ }),
/* 72 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * PUBLISH UAC.
 * @public
 */
var PublishUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(PublishUserAgentClient, _super);
    function PublishUserAgentClient(core, message, delegate) {
        return _super.call(this, transactions_1.NonInviteClientTransaction, core, message, delegate) || this;
    }
    return PublishUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.PublishUserAgentClient = PublishUserAgentClient;


/***/ }),
/* 73 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * Re-SUBSCRIBE UAS.
 * @public
 */
var ReSubscribeUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(ReSubscribeUserAgentServer, _super);
    function ReSubscribeUserAgentServer(dialog, message, delegate) {
        return _super.call(this, transactions_1.NonInviteServerTransaction, dialog.userAgentCore, message, delegate) || this;
    }
    return ReSubscribeUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.ReSubscribeUserAgentServer = ReSubscribeUserAgentServer;


/***/ }),
/* 74 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * REGISTER UAC.
 * @public
 */
var RegisterUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(RegisterUserAgentClient, _super);
    function RegisterUserAgentClient(core, message, delegate) {
        return _super.call(this, transactions_1.NonInviteClientTransaction, core, message, delegate) || this;
    }
    return RegisterUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.RegisterUserAgentClient = RegisterUserAgentClient;


/***/ }),
/* 75 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * REGISTER UAS.
 * @public
 */
var RegisterUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(RegisterUserAgentServer, _super);
    function RegisterUserAgentServer(core, message, delegate) {
        var _this = _super.call(this, transactions_1.NonInviteServerTransaction, core, message, delegate) || this;
        _this.core = core;
        return _this;
    }
    return RegisterUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.RegisterUserAgentServer = RegisterUserAgentServer;


/***/ }),
/* 76 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var subscription_dialog_1 = __webpack_require__(55);
var subscription_1 = __webpack_require__(56);
var timers_1 = __webpack_require__(26);
var transactions_1 = __webpack_require__(27);
var user_agent_client_1 = __webpack_require__(42);
/**
 * SUBSCRIBE UAC.
 * @remarks
 * 4.1.  Subscriber Behavior
 * https://tools.ietf.org/html/rfc6665#section-4.1
 *
 * User agent client for installation of a single subscription per SUBSCRIBE request.
 * TODO: Support for installation of multiple subscriptions on forked SUBSCRIBE reqeuests.
 * @public
 */
var SubscribeUserAgentClient = /** @class */ (function (_super) {
    tslib_1.__extends(SubscribeUserAgentClient, _super);
    function SubscribeUserAgentClient(core, message, delegate) {
        var _this = this;
        // Get event from request message.
        var event = message.getHeader("Event");
        if (!event) {
            throw new Error("Event undefined");
        }
        // Get expires from reqeust message.
        var expires = message.getHeader("Expires");
        if (!expires) {
            throw new Error("Expires undefined");
        }
        _this = _super.call(this, transactions_1.NonInviteClientTransaction, core, message, delegate) || this;
        _this.delegate = delegate;
        // FIXME: Subscriber id should also be matching on event id.
        _this.subscriberId = message.callId + message.fromTag + event;
        _this.subscriptionExpiresRequested = _this.subscriptionExpires = Number(expires);
        _this.subscriptionEvent = event;
        _this.subscriptionState = subscription_1.SubscriptionState.NotifyWait;
        // Start waiting for a NOTIFY we can use to create a subscription.
        _this.waitNotifyStart();
        return _this;
    }
    /**
     * Destructor.
     * Note that Timer N may live on waiting for an initial NOTIFY and
     * the delegate may still receive that NOTIFY. If you don't want
     * that behavior then either clear the delegate so the delegate
     * doesn't get called (a 200 will be sent in response to the NOTIFY)
     * or call `waitNotifyStop` which will clear Timer N and remove this
     * UAC from the core (a 481 will be sent in response to the NOTIFY).
     */
    SubscribeUserAgentClient.prototype.dispose = function () {
        _super.prototype.dispose.call(this);
    };
    /**
     * Handle out of dialog NOTIFY assoicated with SUBSCRIBE request.
     * This is the first NOTIFY received after the SUBSCRIBE request.
     * @param uas - User agent server handling the subscription creating NOTIFY.
     */
    SubscribeUserAgentClient.prototype.onNotify = function (uas) {
        // NOTIFY requests are matched to such SUBSCRIBE requests if they
        // contain the same "Call-ID", a "To" header field "tag" parameter that
        // matches the "From" header field "tag" parameter of the SUBSCRIBE
        // request, and the same "Event" header field.  Rules for comparisons of
        // the "Event" header fields are described in Section 8.2.1.
        // https://tools.ietf.org/html/rfc6665#section-4.4.1
        var event = uas.message.parseHeader("Event").event;
        if (!event || event !== this.subscriptionEvent) {
            this.logger.warn("Failed to parse event.");
            uas.reject({ statusCode: 489 });
            return;
        }
        // NOTIFY requests MUST contain "Subscription-State" header fields that
        // indicate the status of the subscription.
        // https://tools.ietf.org/html/rfc6665#section-4.1.3
        var subscriptionState = uas.message.parseHeader("Subscription-State");
        if (!subscriptionState || !subscriptionState.state) {
            this.logger.warn("Failed to parse subscription state.");
            uas.reject({ statusCode: 489 });
            return;
        }
        // Validate subscription state.
        var state = subscriptionState.state;
        switch (state) {
            case "pending":
                break;
            case "active":
                break;
            case "terminated":
                break;
            default:
                this.logger.warn("Invalid subscription state " + state);
                uas.reject({ statusCode: 489 });
                return;
        }
        // Dialogs usages are created upon completion of a NOTIFY transaction
        // for a new subscription, unless the NOTIFY request contains a
        // "Subscription-State" of "terminated."
        // https://tools.ietf.org/html/rfc6665#section-4.4.1
        if (state !== "terminated") {
            // The Contact header field MUST be present and contain exactly one SIP
            // or SIPS URI in any request that can result in the establishment of a
            // dialog.
            // https://tools.ietf.org/html/rfc3261#section-8.1.1.8
            var contact = uas.message.parseHeader("contact");
            if (!contact) {
                this.logger.warn("Failed to parse contact.");
                uas.reject({ statusCode: 489 });
                return;
            }
        }
        // In accordance with the rules for proxying non-INVITE requests as
        // defined in [RFC3261], successful SUBSCRIBE requests will receive only
        // one 200-class response; however, due to forking, the subscription may
        // have been accepted by multiple nodes.  The subscriber MUST therefore
        // be prepared to receive NOTIFY requests with "From:" tags that differ
        // from the "To:" tag received in the SUBSCRIBE 200-class response.
        //
        // If multiple NOTIFY requests are received in different dialogs in
        // response to a single SUBSCRIBE request, each dialog represents a
        // different destination to which the SUBSCRIBE request was forked.
        // Subscriber handling in such situations varies by event package; see
        // Section 5.4.9 for details.
        // https://tools.ietf.org/html/rfc6665#section-4.1.4
        // Each event package MUST specify whether forked SUBSCRIBE requests are
        // allowed to install multiple subscriptions.
        //
        // If such behavior is not allowed, the first potential dialog-
        // establishing message will create a dialog.  All subsequent NOTIFY
        // requests that correspond to the SUBSCRIBE request (i.e., have
        // matching "To", "From", "Call-ID", and "Event" header fields, as well
        // as "From" header field "tag" parameter and "Event" header field "id"
        // parameter) but that do not match the dialog would be rejected with a
        // 481 response.  Note that the 200-class response to the SUBSCRIBE
        // request can arrive after a matching NOTIFY request has been received;
        // such responses might not correlate to the same dialog established by
        // the NOTIFY request.  Except as required to complete the SUBSCRIBE
        // transaction, such non-matching 200-class responses are ignored.
        //
        // If installing of multiple subscriptions by way of a single forked
        // SUBSCRIBE request is allowed, the subscriber establishes a new dialog
        // towards each notifier by returning a 200-class response to each
        // NOTIFY request.  Each dialog is then handled as its own entity and is
        // refreshed independently of the other dialogs.
        //
        // In the case that multiple subscriptions are allowed, the event
        // package MUST specify whether merging of the notifications to form a
        // single state is required, and how such merging is to be performed.
        // Note that it is possible that some event packages may be defined in
        // such a way that each dialog is tied to a mutually exclusive state
        // that is unaffected by the other dialogs; this MUST be clearly stated
        // if it is the case.
        // https://tools.ietf.org/html/rfc6665#section-5.4.9
        // *** NOTE: This implementation is only for event packages which
        // do not allow forked requests to install muliple subscriptions.
        // As such and in accordance with the specificaiton, we stop waiting
        // and any future NOTIFY requests will be rejected with a 481.
        if (this.dialog) {
            throw new Error("Dialog already created. This implementation only supports install of single subscriptions.");
        }
        this.waitNotifyStop();
        // Update expires.
        this.subscriptionExpires =
            subscriptionState.expires ?
                Math.min(this.subscriptionExpires, Math.max(subscriptionState.expires, 0)) :
                this.subscriptionExpires;
        // Update subscriptoin state.
        switch (state) {
            case "pending":
                this.subscriptionState = subscription_1.SubscriptionState.Pending;
                break;
            case "active":
                this.subscriptionState = subscription_1.SubscriptionState.Active;
                break;
            case "terminated":
                this.subscriptionState = subscription_1.SubscriptionState.Terminated;
                break;
            default:
                throw new Error("Unrecognized state " + state + ".");
        }
        // Dialogs usages are created upon completion of a NOTIFY transaction
        // for a new subscription, unless the NOTIFY request contains a
        // "Subscription-State" of "terminated."
        // https://tools.ietf.org/html/rfc6665#section-4.4.1
        if (this.subscriptionState !== subscription_1.SubscriptionState.Terminated) {
            // Because the dialog usage is established by the NOTIFY request, the
            // route set at the subscriber is taken from the NOTIFY request itself,
            // as opposed to the route set present in the 200-class response to the
            // SUBSCRIBE request.
            // https://tools.ietf.org/html/rfc6665#section-4.4.1
            var dialogState = subscription_dialog_1.SubscriptionDialog.initialDialogStateForSubscription(this.message, uas.message);
            // Subscription Initiated! :)
            this.dialog = new subscription_dialog_1.SubscriptionDialog(this.subscriptionEvent, this.subscriptionExpires, this.subscriptionState, this.core, dialogState);
        }
        // Delegate.
        if (this.delegate && this.delegate.onNotify) {
            var request = uas;
            var subscription = this.dialog;
            this.delegate.onNotify({ request: request, subscription: subscription });
        }
        else {
            uas.accept();
        }
    };
    SubscribeUserAgentClient.prototype.waitNotifyStart = function () {
        var _this = this;
        if (!this.N) {
            // Add ourselves to the core's subscriber map.
            // This allows the core to route out of dialog NOTIFY messages to us.
            this.core.subscribers.set(this.subscriberId, this);
            this.N = setTimeout(function () { return _this.timer_N(); }, timers_1.Timers.TIMER_N);
        }
    };
    SubscribeUserAgentClient.prototype.waitNotifyStop = function () {
        if (this.N) {
            // Remove ourselves to the core's subscriber map.
            // Any future out of dialog NOTIFY messages will be rejected with a 481.
            this.core.subscribers.delete(this.subscriberId);
            clearTimeout(this.N);
            this.N = undefined;
        }
    };
    /**
     * Receive a response from the transaction layer.
     * @param message - Incoming response message.
     */
    SubscribeUserAgentClient.prototype.receiveResponse = function (message) {
        if (!this.authenticationGuard(message)) {
            return;
        }
        if (message.statusCode && message.statusCode >= 200 && message.statusCode < 300) {
            //  The "Expires" header field in a 200-class response to SUBSCRIBE
            //  request indicates the actual duration for which the subscription will
            //  remain active (unless refreshed).  The received value might be
            //  smaller than the value indicated in the SUBSCRIBE request but cannot
            //  be larger; see Section 4.2.1 for details.
            // https://tools.ietf.org/html/rfc6665#section-4.1.2.1
            // The "Expires" values present in SUBSCRIBE 200-class responses behave
            // in the same way as they do in REGISTER responses: the server MAY
            // shorten the interval but MUST NOT lengthen it.
            //
            //    If the duration specified in a SUBSCRIBE request is unacceptably
            //    short, the notifier may be able to send a 423 response, as
            //    described earlier in this section.
            //
            // 200-class responses to SUBSCRIBE requests will not generally contain
            // any useful information beyond subscription duration; their primary
            // purpose is to serve as a reliability mechanism.  State information
            // will be communicated via a subsequent NOTIFY request from the
            // notifier.
            // https://tools.ietf.org/html/rfc6665#section-4.2.1.1
            var expires = message.getHeader("Expires");
            if (!expires) {
                this.logger.warn("Expires header missing in a 200-class response to SUBSCRIBE");
            }
            else {
                var subscriptionExpiresReceived = Number(expires);
                if (subscriptionExpiresReceived > this.subscriptionExpiresRequested) {
                    this.logger.warn("Expires header in a 200-class response to SUBSCRIBE with a higher value than the one in the request");
                }
                if (subscriptionExpiresReceived < this.subscriptionExpires) {
                    this.subscriptionExpires = subscriptionExpiresReceived;
                }
            }
            // If a NOTIFY arrived before 200-class response a dialog may have been created.
            // Updated the dialogs expiration only if this indicates earlier expiration.
            if (this.dialog) {
                if (this.dialog.subscriptionExpires > this.subscriptionExpires) {
                    this.dialog.subscriptionExpires = this.subscriptionExpires;
                }
            }
        }
        if (message.statusCode && message.statusCode >= 300 && message.statusCode < 700) {
            this.waitNotifyStop(); // No NOTIFY will be sent after a negative final response.
        }
        _super.prototype.receiveResponse.call(this, message);
    };
    /**
     * To ensure that subscribers do not wait indefinitely for a
     * subscription to be established, a subscriber starts a Timer N, set to
     * 64*T1, when it sends a SUBSCRIBE request.  If this Timer N expires
     * prior to the receipt of a NOTIFY request, the subscriber considers
     * the subscription failed, and cleans up any state associated with the
     * subscription attempt.
     * https://tools.ietf.org/html/rfc6665#section-4.1.2.4
     */
    SubscribeUserAgentClient.prototype.timer_N = function () {
        this.logger.warn("Timer N expired for SUBSCRIBE user agent client. Timed out waiting for NOTIFY.");
        this.waitNotifyStop();
        if (this.delegate && this.delegate.onNotifyTimeout) {
            this.delegate.onNotifyTimeout();
        }
    };
    return SubscribeUserAgentClient;
}(user_agent_client_1.UserAgentClient));
exports.SubscribeUserAgentClient = SubscribeUserAgentClient;


/***/ }),
/* 77 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var transactions_1 = __webpack_require__(27);
var user_agent_server_1 = __webpack_require__(44);
/**
 * SUBSCRIBE UAS.
 * @public
 */
var SubscribeUserAgentServer = /** @class */ (function (_super) {
    tslib_1.__extends(SubscribeUserAgentServer, _super);
    function SubscribeUserAgentServer(core, message, delegate) {
        var _this = _super.call(this, transactions_1.NonInviteServerTransaction, core, message, delegate) || this;
        _this.core = core;
        return _this;
    }
    return SubscribeUserAgentServer;
}(user_agent_server_1.UserAgentServer));
exports.SubscribeUserAgentServer = SubscribeUserAgentServer;


/***/ }),
/* 78 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
/**
 * Transport.
 * @remarks
 * Abstract transport layer base class.
 * @public
 */
var Transport = /** @class */ (function (_super) {
    tslib_1.__extends(Transport, _super);
    /**
     * Constructor
     * @param logger - Logger.
     * @param options - Options bucket. Deprecated.
     */
    function Transport(logger, options) {
        var _this = _super.call(this) || this;
        _this.logger = logger;
        return _this;
    }
    /**
     * Returns the promise designated by the child layer then emits a connected event.
     * Automatically emits an event upon resolution, unless overrideEvent is set. If you
     * override the event in this fashion, you should emit it in your implementation of connectPromise
     * @param options - Options bucket.
     */
    Transport.prototype.connect = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        return this.connectPromise(options).then(function (data) {
            if (!data.overrideEvent) {
                _this.emit("connected");
            }
        });
    };
    /**
     * Sends a message then emits a 'messageSent' event. Automatically emits an
     * event upon resolution, unless data.overrideEvent is set. If you override
     * the event in this fashion, you should emit it in your implementation of sendPromise
     * Rejects with an Error if message fails to send.
     * @param message - Message.
     * @param options - Options bucket.
     */
    Transport.prototype.send = function (message, options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // Error handling is independent of whether the message was a request or
        // response.
        //
        // If the transport user asks for a message to be sent over an
        // unreliable transport, and the result is an ICMP error, the behavior
        // depends on the type of ICMP error.  Host, network, port or protocol
        // unreachable errors, or parameter problem errors SHOULD cause the
        // transport layer to inform the transport user of a failure in sending.
        // Source quench and TTL exceeded ICMP errors SHOULD be ignored.
        //
        // If the transport user asks for a request to be sent over a reliable
        // transport, and the result is a connection failure, the transport
        // layer SHOULD inform the transport user of a failure in sending.
        // https://tools.ietf.org/html/rfc3261#section-18.4
        return this.sendPromise(message).then(function (result) {
            if (!result.overrideEvent) {
                _this.emit("messageSent", result.msg);
            }
        });
    };
    /**
     * Returns the promise designated by the child layer then emits a
     * disconnected event. Automatically emits an event upon resolution,
     * unless overrideEvent is set. If you override the event in this fashion,
     * you should emit it in your implementation of disconnectPromise
     * @param options - Options bucket
     */
    Transport.prototype.disconnect = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        return this.disconnectPromise(options).then(function (data) {
            if (!data.overrideEvent) {
                _this.emit("disconnected");
            }
        });
    };
    Transport.prototype.afterConnected = function (callback) {
        if (this.isConnected()) {
            callback();
        }
        else {
            this.once("connected", callback);
        }
    };
    /**
     * Returns a promise which resolves once the UA is connected. DEPRECATION WARNING: just use afterConnected()
     */
    Transport.prototype.waitForConnected = function () {
        var _this = this;
        // tslint:disable-next-line:no-console
        console.warn("DEPRECATION WARNING Transport.waitForConnected(): use afterConnected() instead");
        return new Promise(function (resolve) {
            _this.afterConnected(resolve);
        });
    };
    return Transport;
}(events_1.EventEmitter));
exports.Transport = Transport;


/***/ }),
/* 79 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Utils_1 = __webpack_require__(83);
var ClientContext = /** @class */ (function (_super) {
    tslib_1.__extends(ClientContext, _super);
    function ClientContext(ua, method, target, options) {
        var _this = _super.call(this) || this;
        _this.data = {};
        ClientContext.initializer(_this, ua, method, target, options);
        return _this;
    }
    ClientContext.initializer = function (objToConstruct, ua, method, originalTarget, options) {
        objToConstruct.type = Enums_1.TypeStrings.ClientContext;
        // Validate arguments
        if (originalTarget === undefined) {
            throw new TypeError("Not enough arguments");
        }
        objToConstruct.ua = ua;
        objToConstruct.logger = ua.getLogger("sip.clientcontext");
        objToConstruct.method = method;
        var target = ua.normalizeTarget(originalTarget);
        if (!target) {
            throw new TypeError("Invalid target: " + originalTarget);
        }
        var fromURI = ua.userAgentCore.configuration.aor;
        if (options && options.params && options.params.fromUri) {
            fromURI =
                (typeof options.params.fromUri === "string") ?
                    core_1.Grammar.URIParse(options.params.fromUri) :
                    options.params.fromUri;
            if (!fromURI) {
                throw new TypeError("Invalid from URI: " + options.params.fromUri);
            }
        }
        var toURI = target;
        if (options && options.params && options.params.toUri) {
            toURI =
                (typeof options.params.toUri === "string") ?
                    core_1.Grammar.URIParse(options.params.toUri) :
                    options.params.toUri;
            if (!toURI) {
                throw new TypeError("Invalid to URI: " + options.params.toUri);
            }
        }
        /* Options
        * - extraHeaders
        * - params
        * - contentType
        * - body
        */
        options = Object.create(options || Object.prototype);
        options = options || {};
        var extraHeaders = (options.extraHeaders || []).slice();
        var params = options.params || {};
        var bodyObj;
        if (options.body) {
            bodyObj = {
                body: options.body,
                contentType: options.contentType ? options.contentType : "application/sdp"
            };
            objToConstruct.body = bodyObj;
        }
        var body;
        if (bodyObj) {
            body = Utils_1.Utils.fromBodyObj(bodyObj);
        }
        // Build the request
        objToConstruct.request = ua.userAgentCore.makeOutgoingRequestMessage(method, target, fromURI, toURI, params, extraHeaders, body);
        /* Set other properties from the request */
        if (objToConstruct.request.from) {
            objToConstruct.localIdentity = objToConstruct.request.from;
        }
        if (objToConstruct.request.to) {
            objToConstruct.remoteIdentity = objToConstruct.request.to;
        }
    };
    ClientContext.prototype.send = function () {
        var _this = this;
        this.ua.userAgentCore.request(this.request, {
            onAccept: function (response) { return _this.receiveResponse(response.message); },
            onProgress: function (response) { return _this.receiveResponse(response.message); },
            onRedirect: function (response) { return _this.receiveResponse(response.message); },
            onReject: function (response) { return _this.receiveResponse(response.message); },
            onTrying: function (response) { return _this.receiveResponse(response.message); }
        });
        return this;
    };
    ClientContext.prototype.receiveResponse = function (response) {
        var statusCode = response.statusCode || 0;
        var cause = Utils_1.Utils.getReasonPhrase(statusCode);
        switch (true) {
            case /^1[0-9]{2}$/.test(statusCode.toString()):
                this.emit("progress", response, cause);
                break;
            case /^2[0-9]{2}$/.test(statusCode.toString()):
                if (this.ua.applicants[this.toString()]) {
                    delete this.ua.applicants[this.toString()];
                }
                this.emit("accepted", response, cause);
                break;
            default:
                if (this.ua.applicants[this.toString()]) {
                    delete this.ua.applicants[this.toString()];
                }
                this.emit("rejected", response, cause);
                this.emit("failed", response, cause);
                break;
        }
    };
    ClientContext.prototype.onRequestTimeout = function () {
        this.emit("failed", undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
    };
    ClientContext.prototype.onTransportError = function () {
        this.emit("failed", undefined, Constants_1.C.causes.CONNECTION_ERROR);
    };
    return ClientContext;
}(events_1.EventEmitter));
exports.ClientContext = ClientContext;


/***/ }),
/* 80 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var version_1 = __webpack_require__(81);
var C;
(function (C) {
    C.version = version_1.LIBRARY_VERSION;
    C.USER_AGENT = "SIP.js/" + version_1.LIBRARY_VERSION;
    // SIP scheme
    C.SIP = "sip";
    C.SIPS = "sips";
    // End and Failure causes
    var causes;
    (function (causes) {
        // Generic error causes
        causes["CONNECTION_ERROR"] = "Connection Error";
        causes["INTERNAL_ERROR"] = "Internal Error";
        causes["REQUEST_TIMEOUT"] = "Request Timeout";
        causes["SIP_FAILURE_CODE"] = "SIP Failure Code";
        // SIP error causes
        causes["ADDRESS_INCOMPLETE"] = "Address Incomplete";
        causes["AUTHENTICATION_ERROR"] = "Authentication Error";
        causes["BUSY"] = "Busy";
        causes["DIALOG_ERROR"] = "Dialog Error";
        causes["INCOMPATIBLE_SDP"] = "Incompatible SDP";
        causes["NOT_FOUND"] = "Not Found";
        causes["REDIRECTED"] = "Redirected";
        causes["REJECTED"] = "Rejected";
        causes["UNAVAILABLE"] = "Unavailable";
        // Session error causes
        causes["BAD_MEDIA_DESCRIPTION"] = "Bad Media Description";
        causes["CANCELED"] = "Canceled";
        causes["EXPIRES"] = "Expires";
        causes["NO_ACK"] = "No ACK";
        causes["NO_ANSWER"] = "No Answer";
        causes["NO_PRACK"] = "No PRACK";
        causes["RTP_TIMEOUT"] = "RTP Timeout";
        causes["USER_DENIED_MEDIA_ACCESS"] = "User Denied Media Access";
        causes["WEBRTC_ERROR"] = "WebRTC Error";
        causes["WEBRTC_NOT_SUPPORTED"] = "WebRTC Not Supported";
    })(causes = C.causes || (C.causes = {}));
    var supported;
    (function (supported) {
        supported["REQUIRED"] = "required";
        supported["SUPPORTED"] = "supported";
        supported["UNSUPPORTED"] = "none";
    })(supported = C.supported || (C.supported = {}));
    C.SIP_ERROR_CAUSES = {
        ADDRESS_INCOMPLETE: [484],
        AUTHENTICATION_ERROR: [401, 407],
        BUSY: [486, 600],
        INCOMPATIBLE_SDP: [488, 606],
        NOT_FOUND: [404, 604],
        REDIRECTED: [300, 301, 302, 305, 380],
        REJECTED: [403, 603],
        UNAVAILABLE: [480, 410, 408, 430]
    };
    // SIP Methods
    C.ACK = "ACK";
    C.BYE = "BYE";
    C.CANCEL = "CANCEL";
    C.INFO = "INFO";
    C.INVITE = "INVITE";
    C.MESSAGE = "MESSAGE";
    C.NOTIFY = "NOTIFY";
    C.OPTIONS = "OPTIONS";
    C.REGISTER = "REGISTER";
    C.UPDATE = "UPDATE";
    C.SUBSCRIBE = "SUBSCRIBE";
    C.PUBLISH = "PUBLISH";
    C.REFER = "REFER";
    C.PRACK = "PRACK";
    /* SIP Response Reasons
     * DOC: http://www.iana.org/assignments/sip-parameters
     * Copied from https://github.com/versatica/OverSIP/blob/master/lib/oversip/sip/constants.rb#L7
     */
    C.REASON_PHRASE = {
        100: "Trying",
        180: "Ringing",
        181: "Call Is Being Forwarded",
        182: "Queued",
        183: "Session Progress",
        199: "Early Dialog Terminated",
        200: "OK",
        202: "Accepted",
        204: "No Notification",
        300: "Multiple Choices",
        301: "Moved Permanently",
        302: "Moved Temporarily",
        305: "Use Proxy",
        380: "Alternative Service",
        400: "Bad Request",
        401: "Unauthorized",
        402: "Payment Required",
        403: "Forbidden",
        404: "Not Found",
        405: "Method Not Allowed",
        406: "Not Acceptable",
        407: "Proxy Authentication Required",
        408: "Request Timeout",
        410: "Gone",
        412: "Conditional Request Failed",
        413: "Request Entity Too Large",
        414: "Request-URI Too Long",
        415: "Unsupported Media Type",
        416: "Unsupported URI Scheme",
        417: "Unknown Resource-Priority",
        420: "Bad Extension",
        421: "Extension Required",
        422: "Session Interval Too Small",
        423: "Interval Too Brief",
        428: "Use Identity Header",
        429: "Provide Referrer Identity",
        430: "Flow Failed",
        433: "Anonymity Disallowed",
        436: "Bad Identity-Info",
        437: "Unsupported Certificate",
        438: "Invalid Identity Header",
        439: "First Hop Lacks Outbound Support",
        440: "Max-Breadth Exceeded",
        469: "Bad Info Package",
        470: "Consent Needed",
        478: "Unresolvable Destination",
        480: "Temporarily Unavailable",
        481: "Call/Transaction Does Not Exist",
        482: "Loop Detected",
        483: "Too Many Hops",
        484: "Address Incomplete",
        485: "Ambiguous",
        486: "Busy Here",
        487: "Request Terminated",
        488: "Not Acceptable Here",
        489: "Bad Event",
        491: "Request Pending",
        493: "Undecipherable",
        494: "Security Agreement Required",
        500: "Internal Server Error",
        501: "Not Implemented",
        502: "Bad Gateway",
        503: "Service Unavailable",
        504: "Server Time-out",
        505: "Version Not Supported",
        513: "Message Too Large",
        580: "Precondition Failure",
        600: "Busy Everywhere",
        603: "Decline",
        604: "Does Not Exist Anywhere",
        606: "Not Acceptable"
    };
    /* SIP Option Tags
     * DOC: http://www.iana.org/assignments/sip-parameters/sip-parameters.xhtml#sip-parameters-4
     */
    C.OPTION_TAGS = {
        "100rel": true,
        "199": true,
        "answermode": true,
        "early-session": true,
        "eventlist": true,
        "explicitsub": true,
        "from-change": true,
        "geolocation-http": true,
        "geolocation-sip": true,
        "gin": true,
        "gruu": true,
        "histinfo": true,
        "ice": true,
        "join": true,
        "multiple-refer": true,
        "norefersub": true,
        "nosub": true,
        "outbound": true,
        "path": true,
        "policy": true,
        "precondition": true,
        "pref": true,
        "privacy": true,
        "recipient-list-invite": true,
        "recipient-list-message": true,
        "recipient-list-subscribe": true,
        "replaces": true,
        "resource-priority": true,
        "sdp-anat": true,
        "sec-agree": true,
        "tdialog": true,
        "timer": true,
        "uui": true // RFC 7433
    };
    var dtmfType;
    (function (dtmfType) {
        dtmfType["INFO"] = "info";
        dtmfType["RTP"] = "rtp";
    })(dtmfType = C.dtmfType || (C.dtmfType = {}));
})(C = exports.C || (exports.C = {}));


/***/ }),
/* 81 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
exports.LIBRARY_VERSION = "0.15.6";


/***/ }),
/* 82 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

// enums can't really be declared, so they are set here.
// pulled out of individual files to avoid circular dependencies
Object.defineProperty(exports, "__esModule", { value: true });
var DialogStatus;
(function (DialogStatus) {
    DialogStatus[DialogStatus["STATUS_EARLY"] = 1] = "STATUS_EARLY";
    DialogStatus[DialogStatus["STATUS_CONFIRMED"] = 2] = "STATUS_CONFIRMED";
})(DialogStatus = exports.DialogStatus || (exports.DialogStatus = {}));
var SessionStatus;
(function (SessionStatus) {
    // Session states
    SessionStatus[SessionStatus["STATUS_NULL"] = 0] = "STATUS_NULL";
    SessionStatus[SessionStatus["STATUS_INVITE_SENT"] = 1] = "STATUS_INVITE_SENT";
    SessionStatus[SessionStatus["STATUS_1XX_RECEIVED"] = 2] = "STATUS_1XX_RECEIVED";
    SessionStatus[SessionStatus["STATUS_INVITE_RECEIVED"] = 3] = "STATUS_INVITE_RECEIVED";
    SessionStatus[SessionStatus["STATUS_WAITING_FOR_ANSWER"] = 4] = "STATUS_WAITING_FOR_ANSWER";
    SessionStatus[SessionStatus["STATUS_ANSWERED"] = 5] = "STATUS_ANSWERED";
    SessionStatus[SessionStatus["STATUS_WAITING_FOR_PRACK"] = 6] = "STATUS_WAITING_FOR_PRACK";
    SessionStatus[SessionStatus["STATUS_WAITING_FOR_ACK"] = 7] = "STATUS_WAITING_FOR_ACK";
    SessionStatus[SessionStatus["STATUS_CANCELED"] = 8] = "STATUS_CANCELED";
    SessionStatus[SessionStatus["STATUS_TERMINATED"] = 9] = "STATUS_TERMINATED";
    SessionStatus[SessionStatus["STATUS_ANSWERED_WAITING_FOR_PRACK"] = 10] = "STATUS_ANSWERED_WAITING_FOR_PRACK";
    SessionStatus[SessionStatus["STATUS_EARLY_MEDIA"] = 11] = "STATUS_EARLY_MEDIA";
    SessionStatus[SessionStatus["STATUS_CONFIRMED"] = 12] = "STATUS_CONFIRMED";
})(SessionStatus = exports.SessionStatus || (exports.SessionStatus = {}));
var TypeStrings;
(function (TypeStrings) {
    TypeStrings[TypeStrings["ClientContext"] = 0] = "ClientContext";
    TypeStrings[TypeStrings["ConfigurationError"] = 1] = "ConfigurationError";
    TypeStrings[TypeStrings["Dialog"] = 2] = "Dialog";
    TypeStrings[TypeStrings["DigestAuthentication"] = 3] = "DigestAuthentication";
    TypeStrings[TypeStrings["DTMF"] = 4] = "DTMF";
    TypeStrings[TypeStrings["IncomingMessage"] = 5] = "IncomingMessage";
    TypeStrings[TypeStrings["IncomingRequest"] = 6] = "IncomingRequest";
    TypeStrings[TypeStrings["IncomingResponse"] = 7] = "IncomingResponse";
    TypeStrings[TypeStrings["InvalidStateError"] = 8] = "InvalidStateError";
    TypeStrings[TypeStrings["InviteClientContext"] = 9] = "InviteClientContext";
    TypeStrings[TypeStrings["InviteServerContext"] = 10] = "InviteServerContext";
    TypeStrings[TypeStrings["Logger"] = 11] = "Logger";
    TypeStrings[TypeStrings["LoggerFactory"] = 12] = "LoggerFactory";
    TypeStrings[TypeStrings["MethodParameterError"] = 13] = "MethodParameterError";
    TypeStrings[TypeStrings["NameAddrHeader"] = 14] = "NameAddrHeader";
    TypeStrings[TypeStrings["NotSupportedError"] = 15] = "NotSupportedError";
    TypeStrings[TypeStrings["OutgoingRequest"] = 16] = "OutgoingRequest";
    TypeStrings[TypeStrings["Parameters"] = 17] = "Parameters";
    TypeStrings[TypeStrings["PublishContext"] = 18] = "PublishContext";
    TypeStrings[TypeStrings["ReferClientContext"] = 19] = "ReferClientContext";
    TypeStrings[TypeStrings["ReferServerContext"] = 20] = "ReferServerContext";
    TypeStrings[TypeStrings["RegisterContext"] = 21] = "RegisterContext";
    TypeStrings[TypeStrings["RenegotiationError"] = 22] = "RenegotiationError";
    TypeStrings[TypeStrings["RequestSender"] = 23] = "RequestSender";
    TypeStrings[TypeStrings["ServerContext"] = 24] = "ServerContext";
    TypeStrings[TypeStrings["Session"] = 25] = "Session";
    TypeStrings[TypeStrings["SessionDescriptionHandler"] = 26] = "SessionDescriptionHandler";
    TypeStrings[TypeStrings["SessionDescriptionHandlerError"] = 27] = "SessionDescriptionHandlerError";
    TypeStrings[TypeStrings["SessionDescriptionHandlerObserver"] = 28] = "SessionDescriptionHandlerObserver";
    TypeStrings[TypeStrings["Subscription"] = 29] = "Subscription";
    TypeStrings[TypeStrings["Transport"] = 30] = "Transport";
    TypeStrings[TypeStrings["UA"] = 31] = "UA";
    TypeStrings[TypeStrings["URI"] = 32] = "URI";
})(TypeStrings = exports.TypeStrings || (exports.TypeStrings = {}));
// UA status codes
var UAStatus;
(function (UAStatus) {
    UAStatus[UAStatus["STATUS_INIT"] = 0] = "STATUS_INIT";
    UAStatus[UAStatus["STATUS_STARTING"] = 1] = "STATUS_STARTING";
    UAStatus[UAStatus["STATUS_READY"] = 2] = "STATUS_READY";
    UAStatus[UAStatus["STATUS_USER_CLOSED"] = 3] = "STATUS_USER_CLOSED";
    UAStatus[UAStatus["STATUS_NOT_READY"] = 4] = "STATUS_NOT_READY";
})(UAStatus = exports.UAStatus || (exports.UAStatus = {}));


/***/ }),
/* 83 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var Constants_1 = __webpack_require__(80);
var grammar_1 = __webpack_require__(11);
var uri_1 = __webpack_require__(15);
var Utils;
(function (Utils) {
    function defer() {
        var deferred = {};
        deferred.promise = new Promise(function (resolve, reject) {
            deferred.resolve = resolve;
            deferred.reject = reject;
        });
        return deferred;
    }
    Utils.defer = defer;
    function reducePromises(arr, val) {
        return arr.reduce(function (acc, fn) {
            acc = acc.then(fn);
            return acc;
        }, Promise.resolve(val));
    }
    Utils.reducePromises = reducePromises;
    function str_utf8_length(str) {
        return encodeURIComponent(str).replace(/%[A-F\d]{2}/g, "U").length;
    }
    Utils.str_utf8_length = str_utf8_length;
    function generateFakeSDP(body) {
        if (!body) {
            return;
        }
        var start = body.indexOf("o=");
        var end = body.indexOf("\r\n", start);
        return "v=0\r\n" + body.slice(start, end) + "\r\ns=-\r\nt=0 0\r\nc=IN IP4 0.0.0.0";
    }
    Utils.generateFakeSDP = generateFakeSDP;
    function isDecimal(num) {
        var numAsNum = parseInt(num, 10);
        return !isNaN(numAsNum) && (parseFloat(num) === numAsNum);
    }
    Utils.isDecimal = isDecimal;
    function createRandomToken(size, base) {
        if (base === void 0) { base = 32; }
        var token = "";
        for (var i = 0; i < size; i++) {
            var r = Math.floor(Math.random() * base);
            token += r.toString(base);
        }
        return token;
    }
    Utils.createRandomToken = createRandomToken;
    function newTag() {
        // used to use the constant in UA
        return Utils.createRandomToken(10);
    }
    Utils.newTag = newTag;
    // http://stackoverflow.com/users/109538/broofa
    function newUUID() {
        var UUID = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
            var r = Math.floor(Math.random() * 16);
            var v = c === "x" ? r : (r % 4 + 8);
            return v.toString(16);
        });
        return UUID;
    }
    Utils.newUUID = newUUID;
    /*
     * Normalize SIP URI.
     * NOTE: It does not allow a SIP URI without username.
     * Accepts 'sip', 'sips' and 'tel' URIs and convert them into 'sip'.
     * Detects the domain part (if given) and properly hex-escapes the user portion.
     * If the user portion has only 'tel' number symbols the user portion is clean of 'tel' visual separators.
     * @private
     * @param {String} target
     * @param {String} [domain]
     */
    function normalizeTarget(target, domain) {
        // If no target is given then raise an error.
        if (!target) {
            return;
            // If a SIP.URI instance is given then return it.
        }
        else if (target instanceof uri_1.URI) {
            return target;
            // If a string is given split it by '@':
            // - Last fragment is the desired domain.
            // - Otherwise append the given domain argument.
        }
        else if (typeof target === "string") {
            var targetArray = target.split("@");
            var targetUser = void 0;
            var targetDomain = void 0;
            switch (targetArray.length) {
                case 1:
                    if (!domain) {
                        return;
                    }
                    targetUser = target;
                    targetDomain = domain;
                    break;
                case 2:
                    targetUser = targetArray[0];
                    targetDomain = targetArray[1];
                    break;
                default:
                    targetUser = targetArray.slice(0, targetArray.length - 1).join("@");
                    targetDomain = targetArray[targetArray.length - 1];
            }
            // Remove the URI scheme (if present).
            targetUser = targetUser.replace(/^(sips?|tel):/i, "");
            // Remove 'tel' visual separators if the user portion just contains 'tel' number symbols.
            if (/^[\-\.\(\)]*\+?[0-9\-\.\(\)]+$/.test(targetUser)) {
                targetUser = targetUser.replace(/[\-\.\(\)]/g, "");
            }
            // Build the complete SIP URI.
            target = Constants_1.C.SIP + ":" + Utils.escapeUser(targetUser) + "@" + targetDomain;
            // Finally parse the resulting URI.
            return grammar_1.Grammar.URIParse(target);
        }
        else {
            return;
        }
    }
    Utils.normalizeTarget = normalizeTarget;
    /*
     * Hex-escape a SIP URI user.
     * @private
     * @param {String} user
     */
    function escapeUser(user) {
        // Don't hex-escape ':' (%3A), '+' (%2B), '?' (%3F"), '/' (%2F).
        return encodeURIComponent(decodeURIComponent(user))
            .replace(/%3A/ig, ":")
            .replace(/%2B/ig, "+")
            .replace(/%3F/ig, "?")
            .replace(/%2F/ig, "/");
    }
    Utils.escapeUser = escapeUser;
    function headerize(str) {
        var exceptions = {
            "Call-Id": "Call-ID",
            "Cseq": "CSeq",
            "Min-Se": "Min-SE",
            "Rack": "RAck",
            "Rseq": "RSeq",
            "Www-Authenticate": "WWW-Authenticate",
        };
        var name = str.toLowerCase().replace(/_/g, "-").split("-");
        var parts = name.length;
        var hname = "";
        for (var part = 0; part < parts; part++) {
            if (part !== 0) {
                hname += "-";
            }
            hname += name[part].charAt(0).toUpperCase() + name[part].substring(1);
        }
        if (exceptions[hname]) {
            hname = exceptions[hname];
        }
        return hname;
    }
    Utils.headerize = headerize;
    function sipErrorCause(statusCode) {
        for (var cause in Constants_1.C.SIP_ERROR_CAUSES) {
            if (Constants_1.C.SIP_ERROR_CAUSES[cause].indexOf(statusCode) !== -1) {
                return Constants_1.C.causes[cause];
            }
        }
        return Constants_1.C.causes.SIP_FAILURE_CODE;
    }
    Utils.sipErrorCause = sipErrorCause;
    function getReasonPhrase(code, specific) {
        return specific || Constants_1.C.REASON_PHRASE[code] || "";
    }
    Utils.getReasonPhrase = getReasonPhrase;
    function getReasonHeaderValue(code, reason) {
        reason = Utils.getReasonPhrase(code, reason);
        return "SIP;cause=" + code + ';text="' + reason + '"';
    }
    Utils.getReasonHeaderValue = getReasonHeaderValue;
    function getCancelReason(code, reason) {
        if (code && code < 200 || code > 699) {
            throw new TypeError("Invalid statusCode: " + code);
        }
        else if (code) {
            return Utils.getReasonHeaderValue(code, reason);
        }
    }
    Utils.getCancelReason = getCancelReason;
    function buildStatusLine(code, reason) {
        // Validate code and reason values
        if (!code || (code < 100 || code > 699)) {
            throw new TypeError("Invalid statusCode: " + code);
        }
        else if (reason && typeof reason !== "string" && !(reason instanceof String)) {
            throw new TypeError("Invalid reason: " + reason);
        }
        reason = Utils.getReasonPhrase(code, reason);
        return "SIP/2.0 " + code + " " + reason + "\r\n";
    }
    Utils.buildStatusLine = buildStatusLine;
    /**
     * Create a Body given a BodyObj.
     * @param bodyObj Body Object
     */
    function fromBodyObj(bodyObj) {
        var content = bodyObj.body;
        var contentType = bodyObj.contentType;
        var contentDisposition = contentTypeToContentDisposition(contentType);
        var body = { contentDisposition: contentDisposition, contentType: contentType, content: content };
        return body;
    }
    Utils.fromBodyObj = fromBodyObj;
    /**
     * Create a BodyObj given a Body.
     * @param bodyObj Body Object
     */
    function toBodyObj(body) {
        var bodyObj = {
            body: body.content,
            contentType: body.contentType
        };
        return bodyObj;
    }
    Utils.toBodyObj = toBodyObj;
    // If the Content-Disposition header field is missing, bodies of
    // Content-Type application/sdp imply the disposition "session", while
    // other content types imply "render".
    // https://tools.ietf.org/html/rfc3261#section-13.2.1
    function contentTypeToContentDisposition(contentType) {
        if (contentType === "application/sdp") {
            return "session";
        }
        else {
            return "render";
        }
    }
})(Utils = exports.Utils || (exports.Utils = {}));


/***/ }),
/* 84 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
// tslint:disable:max-classes-per-file
var Exceptions;
(function (Exceptions) {
    /**
     * Indicates the session description handler has closed.
     * Occurs when getDescription() or setDescription() are called after close() has been called.
     * Occurs when close() is called while getDescription() or setDescription() are in progress.
     */
    var ClosedSessionDescriptionHandlerError = /** @class */ (function (_super) {
        tslib_1.__extends(ClosedSessionDescriptionHandlerError, _super);
        function ClosedSessionDescriptionHandlerError() {
            return _super.call(this, "The session description handler has closed.") || this;
        }
        return ClosedSessionDescriptionHandlerError;
    }(core_1.Exception));
    Exceptions.ClosedSessionDescriptionHandlerError = ClosedSessionDescriptionHandlerError;
    /**
     * Indicates the session terminated before the action completed.
     */
    var TerminatedSessionError = /** @class */ (function (_super) {
        tslib_1.__extends(TerminatedSessionError, _super);
        function TerminatedSessionError() {
            return _super.call(this, "The session has terminated.") || this;
        }
        return TerminatedSessionError;
    }(core_1.Exception));
    Exceptions.TerminatedSessionError = TerminatedSessionError;
    /**
     * Unsupported session description content type.
     */
    var UnsupportedSessionDescriptionContentTypeError = /** @class */ (function (_super) {
        tslib_1.__extends(UnsupportedSessionDescriptionContentTypeError, _super);
        function UnsupportedSessionDescriptionContentTypeError(message) {
            return _super.call(this, message ? message : "Unsupported session description content type.") || this;
        }
        return UnsupportedSessionDescriptionContentTypeError;
    }(core_1.Exception));
    Exceptions.UnsupportedSessionDescriptionContentTypeError = UnsupportedSessionDescriptionContentTypeError;
})(Exceptions = exports.Exceptions || (exports.Exceptions = {}));
/**
 * DEPRECATED: The original implementation of exceptions in this library attempted to
 * deal with the lack of type checking in JavaScript by adding a "type" attribute
 * to objects and using that to discriminate. On top of that it layered allcoated
 * "code" numbers and constant "name" strings. All of that is unnecessary when using
 * TypeScript, inheriting from Error and properly setting up the prototype chain...
 */
var LegacyException = /** @class */ (function (_super) {
    tslib_1.__extends(LegacyException, _super);
    function LegacyException(code, name, message) {
        var _this = _super.call(this, message) || this;
        _this.code = code;
        _this.name = name;
        _this.message = message;
        return _this;
    }
    return LegacyException;
}(core_1.Exception));
(function (Exceptions) {
    var ConfigurationError = /** @class */ (function (_super) {
        tslib_1.__extends(ConfigurationError, _super);
        function ConfigurationError(parameter, value) {
            var _this = _super.call(this, 1, "CONFIGURATION_ERROR", (!value) ? "Missing parameter: " + parameter :
                "Invalid value " + JSON.stringify(value) + " for parameter '" + parameter + "'") || this;
            _this.type = Enums_1.TypeStrings.ConfigurationError;
            _this.parameter = parameter;
            _this.value = value;
            return _this;
        }
        return ConfigurationError;
    }(LegacyException));
    Exceptions.ConfigurationError = ConfigurationError;
    var InvalidStateError = /** @class */ (function (_super) {
        tslib_1.__extends(InvalidStateError, _super);
        function InvalidStateError(status) {
            var _this = _super.call(this, 2, "INVALID_STATE_ERROR", "Invalid status: " + status) || this;
            _this.type = Enums_1.TypeStrings.InvalidStateError;
            _this.status = status;
            return _this;
        }
        return InvalidStateError;
    }(LegacyException));
    Exceptions.InvalidStateError = InvalidStateError;
    var NotSupportedError = /** @class */ (function (_super) {
        tslib_1.__extends(NotSupportedError, _super);
        function NotSupportedError(message) {
            var _this = _super.call(this, 3, "NOT_SUPPORTED_ERROR", message) || this;
            _this.type = Enums_1.TypeStrings.NotSupportedError;
            return _this;
        }
        return NotSupportedError;
    }(LegacyException));
    Exceptions.NotSupportedError = NotSupportedError;
    // 4 was GetDescriptionError, which was deprecated and now removed
    var RenegotiationError = /** @class */ (function (_super) {
        tslib_1.__extends(RenegotiationError, _super);
        function RenegotiationError(message) {
            var _this = _super.call(this, 5, "RENEGOTIATION_ERROR", message) || this;
            _this.type = Enums_1.TypeStrings.RenegotiationError;
            return _this;
        }
        return RenegotiationError;
    }(LegacyException));
    Exceptions.RenegotiationError = RenegotiationError;
    var MethodParameterError = /** @class */ (function (_super) {
        tslib_1.__extends(MethodParameterError, _super);
        function MethodParameterError(method, parameter, value) {
            var _this = _super.call(this, 6, "METHOD_PARAMETER_ERROR", (!value) ?
                "Missing parameter: " + parameter :
                "Invalid value " + JSON.stringify(value) + " for parameter '" + parameter + "'") || this;
            _this.type = Enums_1.TypeStrings.MethodParameterError;
            _this.method = method;
            _this.parameter = parameter;
            _this.value = value;
            return _this;
        }
        return MethodParameterError;
    }(LegacyException));
    Exceptions.MethodParameterError = MethodParameterError;
    // 7 was TransportError, which was replaced
    var SessionDescriptionHandlerError = /** @class */ (function (_super) {
        tslib_1.__extends(SessionDescriptionHandlerError, _super);
        function SessionDescriptionHandlerError(method, error, message) {
            var _this = _super.call(this, 8, "SESSION_DESCRIPTION_HANDLER_ERROR", message || "Error with Session Description Handler") || this;
            _this.type = Enums_1.TypeStrings.SessionDescriptionHandlerError;
            _this.method = method;
            _this.error = error;
            return _this;
        }
        return SessionDescriptionHandlerError;
    }(LegacyException));
    Exceptions.SessionDescriptionHandlerError = SessionDescriptionHandlerError;
})(Exceptions = exports.Exceptions || (exports.Exceptions = {}));


/***/ }),
/* 85 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var core_1 = __webpack_require__(2);
/**
 * Extract and parse every header of a SIP message.
 * @namespace
 */
var Parser;
(function (Parser) {
    function getHeader(data, headerStart) {
        // 'start' position of the header.
        var start = headerStart;
        // 'end' position of the header.
        var end = 0;
        // 'partial end' position of the header.
        var partialEnd = 0;
        // End of message.
        if (data.substring(start, start + 2).match(/(^\r\n)/)) {
            return -2;
        }
        while (end === 0) {
            // Partial End of Header.
            partialEnd = data.indexOf("\r\n", start);
            // 'indexOf' returns -1 if the value to be found never occurs.
            if (partialEnd === -1) {
                return partialEnd;
            }
            if (!data.substring(partialEnd + 2, partialEnd + 4).match(/(^\r\n)/) &&
                data.charAt(partialEnd + 2).match(/(^\s+)/)) {
                // Not the end of the message. Continue from the next position.
                start = partialEnd + 2;
            }
            else {
                end = partialEnd;
            }
        }
        return end;
    }
    Parser.getHeader = getHeader;
    function parseHeader(message, data, headerStart, headerEnd) {
        var hcolonIndex = data.indexOf(":", headerStart);
        var headerName = data.substring(headerStart, hcolonIndex).trim();
        var headerValue = data.substring(hcolonIndex + 1, headerEnd).trim();
        var parsed;
        // If header-field is well-known, parse it.
        switch (headerName.toLowerCase()) {
            case "via":
            case "v":
                message.addHeader("via", headerValue);
                if (message.getHeaders("via").length === 1) {
                    parsed = message.parseHeader("Via");
                    if (parsed) {
                        message.via = parsed;
                        message.viaBranch = parsed.branch;
                    }
                }
                else {
                    parsed = 0;
                }
                break;
            case "from":
            case "f":
                message.setHeader("from", headerValue);
                parsed = message.parseHeader("from");
                if (parsed) {
                    message.from = parsed;
                    message.fromTag = parsed.getParam("tag");
                }
                break;
            case "to":
            case "t":
                message.setHeader("to", headerValue);
                parsed = message.parseHeader("to");
                if (parsed) {
                    message.to = parsed;
                    message.toTag = parsed.getParam("tag");
                }
                break;
            case "record-route":
                parsed = core_1.Grammar.parse(headerValue, "Record_Route");
                if (parsed === -1) {
                    parsed = undefined;
                    break;
                }
                for (var header in parsed) {
                    if (parsed[header]) {
                        message.addHeader("record-route", headerValue.substring(parsed[header].position, parsed[header].offset));
                        message.headers["Record-Route"][message.getHeaders("record-route").length - 1].parsed =
                            parsed[header].parsed;
                    }
                }
                break;
            case "call-id":
            case "i":
                message.setHeader("call-id", headerValue);
                parsed = message.parseHeader("call-id");
                if (parsed) {
                    message.callId = headerValue;
                }
                break;
            case "contact":
            case "m":
                parsed = core_1.Grammar.parse(headerValue, "Contact");
                if (parsed === -1) {
                    parsed = undefined;
                    break;
                }
                if (!(parsed instanceof Array)) {
                    parsed = undefined;
                    break;
                }
                parsed.forEach(function (header) {
                    message.addHeader("contact", headerValue.substring(header.position, header.offset));
                    message.headers.Contact[message.getHeaders("contact").length - 1].parsed = header.parsed;
                });
                break;
            case "content-length":
            case "l":
                message.setHeader("content-length", headerValue);
                parsed = message.parseHeader("content-length");
                break;
            case "content-type":
            case "c":
                message.setHeader("content-type", headerValue);
                parsed = message.parseHeader("content-type");
                break;
            case "cseq":
                message.setHeader("cseq", headerValue);
                parsed = message.parseHeader("cseq");
                if (parsed) {
                    message.cseq = parsed.value;
                }
                if (message instanceof core_1.IncomingResponseMessage) {
                    message.method = parsed.method;
                }
                break;
            case "max-forwards":
                message.setHeader("max-forwards", headerValue);
                parsed = message.parseHeader("max-forwards");
                break;
            case "www-authenticate":
                message.setHeader("www-authenticate", headerValue);
                parsed = message.parseHeader("www-authenticate");
                break;
            case "proxy-authenticate":
                message.setHeader("proxy-authenticate", headerValue);
                parsed = message.parseHeader("proxy-authenticate");
                break;
            case "refer-to":
            case "r":
                message.setHeader("refer-to", headerValue);
                parsed = message.parseHeader("refer-to");
                if (parsed) {
                    message.referTo = parsed;
                }
                break;
            default:
                // Do not parse this header.
                message.addHeader(headerName.toLowerCase(), headerValue);
                parsed = 0;
        }
        if (parsed === undefined) {
            return {
                error: "error parsing header '" + headerName + "'"
            };
        }
        else {
            return true;
        }
    }
    Parser.parseHeader = parseHeader;
    /** Parse SIP Message
     * @function
     * @param {String} message SIP message.
     * @param {Object} logger object.
     * @returns {SIP.IncomingRequest|SIP.IncomingResponse|undefined}
     */
    function parseMessage(data, logger) {
        var headerStart = 0;
        var headerEnd = data.indexOf("\r\n");
        if (headerEnd === -1) {
            logger.warn("no CRLF found, not a SIP message, discarded");
            return;
        }
        // Parse first line. Check if it is a Request or a Reply.
        var firstLine = data.substring(0, headerEnd);
        var parsed = core_1.Grammar.parse(firstLine, "Request_Response");
        var message;
        if (parsed === -1) {
            logger.warn('error parsing first line of SIP message: "' + firstLine + '"');
            return;
        }
        else if (!parsed.status_code) {
            message = new core_1.IncomingRequestMessage();
            message.method = parsed.method;
            message.ruri = parsed.uri;
        }
        else {
            message = new core_1.IncomingResponseMessage();
            message.statusCode = parsed.status_code;
            message.reasonPhrase = parsed.reason_phrase;
        }
        message.data = data;
        headerStart = headerEnd + 2;
        /* Loop over every line in data. Detect the end of each header and parse
        * it or simply add to the headers collection.
        */
        var bodyStart;
        while (true) {
            headerEnd = getHeader(data, headerStart);
            // The SIP message has normally finished.
            if (headerEnd === -2) {
                bodyStart = headerStart + 2;
                break;
            }
            else if (headerEnd === -1) {
                // data.indexOf returned -1 due to a malformed message.
                logger.error("malformed message");
                return;
            }
            var parsedHeader = parseHeader(message, data, headerStart, headerEnd);
            if (parsedHeader !== true) {
                logger.error(parsed.error);
                return;
            }
            headerStart = headerEnd + 2;
        }
        /* RFC3261 18.3.
        * If there are additional bytes in the transport packet
        * beyond the end of the body, they MUST be discarded.
        */
        if (message.hasHeader("content-length")) {
            message.body = data.substr(bodyStart, Number(message.getHeader("content-length")));
        }
        else {
            message.body = data.substring(bodyStart);
        }
        return message;
    }
    Parser.parseMessage = parseMessage;
})(Parser = exports.Parser || (exports.Parser = {}));


/***/ }),
/* 86 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var ClientContext_1 = __webpack_require__(79);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Utils_1 = __webpack_require__(83);
/**
 * SIP Publish (SIP Extension for Event State Publication RFC3903)
 * @class Class creating a SIP PublishContext.
 */
var PublishContext = /** @class */ (function (_super) {
    tslib_1.__extends(PublishContext, _super);
    function PublishContext(ua, target, event, options) {
        if (options === void 0) { options = {}; }
        var _this = this;
        options.extraHeaders = (options.extraHeaders || []).slice();
        options.contentType = (options.contentType || "text/plain");
        if (typeof options.expires !== "number" || (options.expires % 1) !== 0) {
            options.expires = 3600;
        }
        else {
            options.expires = Number(options.expires);
        }
        if (typeof (options.unpublishOnClose) !== "boolean") {
            options.unpublishOnClose = true;
        }
        if (target === undefined || target === null || target === "") {
            throw new Exceptions_1.Exceptions.MethodParameterError("Publish", "Target", target);
        }
        else {
            target = ua.normalizeTarget(target);
            if (target === undefined) {
                throw new Exceptions_1.Exceptions.MethodParameterError("Publish", "Target", target);
            }
        }
        _this = _super.call(this, ua, Constants_1.C.PUBLISH, target, options) || this;
        _this.type = Enums_1.TypeStrings.PublishContext;
        _this.options = options;
        _this.target = target;
        if (event === undefined || event === null || event === "") {
            throw new Exceptions_1.Exceptions.MethodParameterError("Publish", "Event", event);
        }
        else {
            _this.event = event;
        }
        _this.logger = ua.getLogger("sip.publish");
        _this.pubRequestExpires = _this.options.expires;
        return _this;
    }
    /**
     * Publish
     * @param {string} Event body to publish, optional
     */
    PublishContext.prototype.publish = function (body) {
        // Clean up before the run
        if (this.publishRefreshTimer) {
            clearTimeout(this.publishRefreshTimer);
            this.publishRefreshTimer = undefined;
        }
        // is Inital or Modify request
        this.options.body = body;
        this.pubRequestBody = this.options.body;
        if (this.pubRequestExpires === 0) {
            // This is Initial request after unpublish
            this.pubRequestExpires = this.options.expires;
            this.pubRequestEtag = undefined;
        }
        if (!(this.ua.publishers[this.target.toString() + ":" + this.event])) {
            this.ua.publishers[this.target.toString() + ":" + this.event] = this;
        }
        this.sendPublishRequest();
    };
    /**
     * Unpublish
     */
    PublishContext.prototype.unpublish = function () {
        // Clean up before the run
        if (this.publishRefreshTimer) {
            clearTimeout(this.publishRefreshTimer);
            this.publishRefreshTimer = undefined;
        }
        this.pubRequestBody = undefined;
        this.pubRequestExpires = 0;
        if (this.pubRequestEtag !== undefined) {
            this.sendPublishRequest();
        }
    };
    /**
     * Close
     */
    PublishContext.prototype.close = function () {
        // Send unpublish, if requested
        if (this.options.unpublishOnClose) {
            this.unpublish();
        }
        else {
            if (this.publishRefreshTimer) {
                clearTimeout(this.publishRefreshTimer);
                this.publishRefreshTimer = undefined;
            }
            this.pubRequestBody = undefined;
            this.pubRequestExpires = 0;
            this.pubRequestEtag = undefined;
        }
        if (this.ua.publishers[this.target.toString() + ":" + this.event]) {
            delete this.ua.publishers[this.target.toString() + ":" + this.event];
        }
    };
    PublishContext.prototype.onRequestTimeout = function () {
        _super.prototype.onRequestTimeout.call(this);
        this.emit("unpublished", undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
    };
    PublishContext.prototype.onTransportError = function () {
        _super.prototype.onTransportError.call(this);
        this.emit("unpublished", undefined, Constants_1.C.causes.CONNECTION_ERROR);
    };
    PublishContext.prototype.receiveResponse = function (response) {
        var _this = this;
        var statusCode = response.statusCode || 0;
        var cause = Utils_1.Utils.getReasonPhrase(statusCode);
        switch (true) {
            case /^1[0-9]{2}$/.test(statusCode.toString()):
                this.emit("progress", response, cause);
                break;
            case /^2[0-9]{2}$/.test(statusCode.toString()):
                // Set SIP-Etag
                if (response.hasHeader("SIP-ETag")) {
                    this.pubRequestEtag = response.getHeader("SIP-ETag");
                }
                else {
                    this.logger.warn("SIP-ETag header missing in a 200-class response to PUBLISH");
                }
                // Update Expire
                if (response.hasHeader("Expires")) {
                    var expires = Number(response.getHeader("Expires"));
                    if (typeof expires === "number" && expires >= 0 && expires <= this.pubRequestExpires) {
                        this.pubRequestExpires = expires;
                    }
                    else {
                        this.logger.warn("Bad Expires header in a 200-class response to PUBLISH");
                    }
                }
                else {
                    this.logger.warn("Expires header missing in a 200-class response to PUBLISH");
                }
                if (this.pubRequestExpires !== 0) {
                    // Schedule refresh
                    this.publishRefreshTimer = setTimeout(function () { return _this.refreshRequest(); }, this.pubRequestExpires * 900);
                    this.emit("published", response, cause);
                }
                else {
                    this.emit("unpublished", response, cause);
                }
                break;
            case /^412$/.test(statusCode.toString()):
                // 412 code means no matching ETag - possibly the PUBLISH expired
                // Resubmit as new request, if the current request is not a "remove"
                if (this.pubRequestEtag !== undefined && this.pubRequestExpires !== 0) {
                    this.logger.warn("412 response to PUBLISH, recovering");
                    this.pubRequestEtag = undefined;
                    this.emit("progress", response, cause);
                    this.publish(this.options.body);
                }
                else {
                    this.logger.warn("412 response to PUBLISH, recovery failed");
                    this.pubRequestExpires = 0;
                    this.emit("failed", response, cause);
                    this.emit("unpublished", response, cause);
                }
                break;
            case /^423$/.test(statusCode.toString()):
                // 423 code means we need to adjust the Expires interval up
                if (this.pubRequestExpires !== 0 && response.hasHeader("Min-Expires")) {
                    var minExpires = Number(response.getHeader("Min-Expires"));
                    if (typeof minExpires === "number" || minExpires > this.pubRequestExpires) {
                        this.logger.warn("423 code in response to PUBLISH, adjusting the Expires value and trying to recover");
                        this.pubRequestExpires = minExpires;
                        this.emit("progress", response, cause);
                        this.publish(this.options.body);
                    }
                    else {
                        this.logger.warn("Bad 423 response Min-Expires header received for PUBLISH");
                        this.pubRequestExpires = 0;
                        this.emit("failed", response, cause);
                        this.emit("unpublished", response, cause);
                    }
                }
                else {
                    this.logger.warn("423 response to PUBLISH, recovery failed");
                    this.pubRequestExpires = 0;
                    this.emit("failed", response, cause);
                    this.emit("unpublished", response, cause);
                }
                break;
            default:
                this.pubRequestExpires = 0;
                this.emit("failed", response, cause);
                this.emit("unpublished", response, cause);
                break;
        }
        // Do the cleanup
        if (this.pubRequestExpires === 0) {
            if (this.publishRefreshTimer) {
                clearTimeout(this.publishRefreshTimer);
                this.publishRefreshTimer = undefined;
            }
            this.pubRequestBody = undefined;
            this.pubRequestEtag = undefined;
        }
    };
    PublishContext.prototype.send = function () {
        var _this = this;
        this.ua.userAgentCore.publish(this.request, {
            onAccept: function (response) { return _this.receiveResponse(response.message); },
            onProgress: function (response) { return _this.receiveResponse(response.message); },
            onRedirect: function (response) { return _this.receiveResponse(response.message); },
            onReject: function (response) { return _this.receiveResponse(response.message); },
            onTrying: function (response) { return _this.receiveResponse(response.message); }
        });
        return this;
    };
    PublishContext.prototype.refreshRequest = function () {
        // Clean up before the run
        if (this.publishRefreshTimer) {
            clearTimeout(this.publishRefreshTimer);
            this.publishRefreshTimer = undefined;
        }
        // This is Refresh request
        this.pubRequestBody = undefined;
        if (this.pubRequestEtag === undefined) {
            // Request not valid
            throw new Exceptions_1.Exceptions.MethodParameterError("Publish", "Body", undefined);
        }
        if (this.pubRequestExpires === 0) {
            // Request not valid
            throw new Exceptions_1.Exceptions.MethodParameterError("Publish", "Expire", this.pubRequestExpires);
        }
        this.sendPublishRequest();
    };
    PublishContext.prototype.sendPublishRequest = function () {
        var reqOptions = Object.create(this.options || Object.prototype);
        reqOptions.extraHeaders = (this.options.extraHeaders || []).slice();
        reqOptions.extraHeaders.push("Event: " + this.event);
        reqOptions.extraHeaders.push("Expires: " + this.pubRequestExpires);
        if (this.pubRequestEtag !== undefined) {
            reqOptions.extraHeaders.push("SIP-If-Match: " + this.pubRequestEtag);
        }
        var ruri = this.target instanceof core_1.URI ? this.target : this.ua.normalizeTarget(this.target);
        if (!ruri) {
            throw new Error("ruri undefined.");
        }
        var params = this.options.params || {};
        var bodyObj;
        if (this.pubRequestBody !== undefined) {
            bodyObj = {
                body: this.pubRequestBody,
                contentType: this.options.contentType
            };
        }
        var body;
        if (bodyObj) {
            body = Utils_1.Utils.fromBodyObj(bodyObj);
        }
        this.request = this.ua.userAgentCore.makeOutgoingRequestMessage(Constants_1.C.PUBLISH, ruri, params.fromUri ? params.fromUri : this.ua.userAgentCore.configuration.aor, params.toUri ? params.toUri : this.target, params, reqOptions.extraHeaders, body);
        this.send();
    };
    return PublishContext;
}(ClientContext_1.ClientContext));
exports.PublishContext = PublishContext;


/***/ }),
/* 87 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var ClientContext_1 = __webpack_require__(79);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var ServerContext_1 = __webpack_require__(88);
// tslint:disable-next-line:max-classes-per-file
var ReferClientContext = /** @class */ (function (_super) {
    tslib_1.__extends(ReferClientContext, _super);
    function ReferClientContext(ua, applicant, target, options) {
        if (options === void 0) { options = {}; }
        var _this = this;
        if (ua === undefined || applicant === undefined || target === undefined) {
            throw new TypeError("Not enough arguments");
        }
        _this = _super.call(this, ua, Constants_1.C.REFER, applicant.remoteIdentity.uri.toString(), options) || this;
        _this.type = Enums_1.TypeStrings.ReferClientContext;
        _this.options = options;
        _this.extraHeaders = (_this.options.extraHeaders || []).slice();
        _this.applicant = applicant;
        _this.target = _this.initReferTo(target);
        if (_this.ua) {
            _this.extraHeaders.push("Referred-By: <" + _this.ua.configuration.uri + ">");
        }
        // TODO: Check that this is correct isc/icc
        _this.extraHeaders.push("Contact: " + applicant.contact);
        // this is UA.C.ALLOWED_METHODS, removed to get around circular dependency
        _this.extraHeaders.push("Allow: " + [
            "ACK",
            "CANCEL",
            "INVITE",
            "MESSAGE",
            "BYE",
            "OPTIONS",
            "INFO",
            "NOTIFY",
            "REFER"
        ].toString());
        _this.extraHeaders.push("Refer-To: " + _this.target);
        _this.errorListener = _this.onTransportError.bind(_this);
        if (ua.transport) {
            ua.transport.on("transportError", _this.errorListener);
        }
        return _this;
    }
    ReferClientContext.prototype.refer = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        var extraHeaders = (this.extraHeaders || []).slice();
        if (options.extraHeaders) {
            extraHeaders.concat(options.extraHeaders);
        }
        this.applicant.sendRequest(Constants_1.C.REFER, {
            extraHeaders: this.extraHeaders,
            receiveResponse: function (response) {
                var statusCode = response && response.statusCode ? response.statusCode.toString() : "";
                if (/^1[0-9]{2}$/.test(statusCode)) {
                    _this.emit("referRequestProgress", _this);
                }
                else if (/^2[0-9]{2}$/.test(statusCode)) {
                    _this.emit("referRequestAccepted", _this);
                }
                else if (/^[4-6][0-9]{2}$/.test(statusCode)) {
                    _this.emit("referRequestRejected", _this);
                }
                if (options.receiveResponse) {
                    options.receiveResponse(response);
                }
            }
        });
        return this;
    };
    ReferClientContext.prototype.receiveNotify = function (request) {
        // If we can correctly handle this, then we need to send a 200 OK!
        var contentType = request.message.hasHeader("Content-Type") ?
            request.message.getHeader("Content-Type") : undefined;
        if (contentType && contentType.search(/^message\/sipfrag/) !== -1) {
            var messageBody = core_1.Grammar.parse(request.message.body, "sipfrag");
            if (messageBody === -1) {
                request.reject({
                    statusCode: 489,
                    reasonPhrase: "Bad Event"
                });
                return;
            }
            switch (true) {
                case (/^1[0-9]{2}$/.test(messageBody.status_code)):
                    this.emit("referProgress", this);
                    break;
                case (/^2[0-9]{2}$/.test(messageBody.status_code)):
                    this.emit("referAccepted", this);
                    if (!this.options.activeAfterTransfer && this.applicant.terminate) {
                        this.applicant.terminate();
                    }
                    break;
                default:
                    this.emit("referRejected", this);
                    break;
            }
            request.accept();
            this.emit("notify", request.message);
            return;
        }
        request.reject({
            statusCode: 489,
            reasonPhrase: "Bad Event"
        });
    };
    ReferClientContext.prototype.initReferTo = function (target) {
        var stringOrURI;
        if (typeof target === "string") {
            // REFER without Replaces (Blind Transfer)
            var targetString = core_1.Grammar.parse(target, "Refer_To");
            stringOrURI = targetString && targetString.uri ? targetString.uri : target;
            // Check target validity
            var targetUri = this.ua.normalizeTarget(target);
            if (!targetUri) {
                throw new TypeError("Invalid target: " + target);
            }
            stringOrURI = targetUri;
        }
        else {
            // REFER with Replaces (Attended Transfer)
            if (!target.session) {
                throw new Error("Session undefined.");
            }
            var displayName = target.remoteIdentity.friendlyName;
            var remoteTarget = target.session.remoteTarget.toString();
            var callId = target.session.callId;
            var remoteTag = target.session.remoteTag;
            var localTag = target.session.localTag;
            var replaces = encodeURIComponent(callId + ";to-tag=" + remoteTag + ";from-tag=" + localTag);
            stringOrURI = "\"" + displayName + "\" <" + remoteTarget + "?Replaces=" + replaces + ">";
        }
        return stringOrURI;
    };
    return ReferClientContext;
}(ClientContext_1.ClientContext));
exports.ReferClientContext = ReferClientContext;
// tslint:disable-next-line:max-classes-per-file
var ReferServerContext = /** @class */ (function (_super) {
    tslib_1.__extends(ReferServerContext, _super);
    function ReferServerContext(ua, incomingRequest, session) {
        var _this = _super.call(this, ua, incomingRequest) || this;
        _this.session = session;
        _this.type = Enums_1.TypeStrings.ReferServerContext;
        _this.ua = ua;
        _this.status = Enums_1.SessionStatus.STATUS_INVITE_RECEIVED;
        _this.fromTag = _this.request.fromTag;
        _this.id = _this.request.callId + _this.fromTag;
        _this.contact = _this.ua.contact.toString();
        _this.logger = ua.getLogger("sip.referservercontext", _this.id);
        // Needed to send the NOTIFY's
        _this.cseq = Math.floor(Math.random() * 10000);
        _this.callId = _this.request.callId;
        _this.fromUri = _this.request.to.uri;
        _this.fromTag = _this.request.to.parameters.tag;
        _this.remoteTarget = _this.request.headers.Contact[0].parsed.uri;
        _this.toUri = _this.request.from.uri;
        _this.toTag = _this.request.fromTag;
        _this.routeSet = _this.request.getHeaders("record-route");
        // RFC 3515 2.4.1
        if (!_this.request.hasHeader("refer-to")) {
            _this.logger.warn("Invalid REFER packet. A refer-to header is required. Rejecting refer.");
            _this.reject();
            return _this;
        }
        _this.referTo = _this.request.parseHeader("refer-to");
        // TODO: Must set expiration timer and send 202 if there is no response by then
        _this.referredSession = _this.ua.findSession(_this.request);
        if (_this.request.hasHeader("referred-by")) {
            _this.referredBy = _this.request.getHeader("referred-by");
        }
        if (_this.referTo.uri.hasHeader("replaces")) {
            _this.replaces = _this.referTo.uri.getHeader("replaces");
        }
        _this.errorListener = _this.onTransportError.bind(_this);
        if (ua.transport) {
            ua.transport.on("transportError", _this.errorListener);
        }
        _this.status = Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER;
        return _this;
    }
    ReferServerContext.prototype.progress = function () {
        if (this.status !== Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        this.incomingRequest.trying();
    };
    ReferServerContext.prototype.reject = function (options) {
        if (options === void 0) { options = {}; }
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        this.logger.log("Rejecting refer");
        this.status = Enums_1.SessionStatus.STATUS_TERMINATED;
        _super.prototype.reject.call(this, options);
        this.emit("referRequestRejected", this);
    };
    ReferServerContext.prototype.accept = function (options, modifiers) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER) {
            this.status = Enums_1.SessionStatus.STATUS_ANSWERED;
        }
        else {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        this.incomingRequest.accept({
            statusCode: 202,
            reasonPhrase: "Accepted"
        });
        this.emit("referRequestAccepted", this);
        if (options.followRefer) {
            this.logger.log("Accepted refer, attempting to automatically follow it");
            var target = this.referTo.uri;
            if (!target.scheme || !target.scheme.match("^sips?$")) {
                this.logger.error("SIP.js can only automatically follow SIP refer target");
                this.reject();
                return;
            }
            var inviteOptions = options.inviteOptions || {};
            var extraHeaders = (inviteOptions.extraHeaders || []).slice();
            if (this.replaces) {
                // decodeURIComponent is a holdover from 2c086eb4. Not sure that it is actually necessary
                extraHeaders.push("Replaces: " + decodeURIComponent(this.replaces));
            }
            if (this.referredBy) {
                extraHeaders.push("Referred-By: " + this.referredBy);
            }
            inviteOptions.extraHeaders = extraHeaders;
            target.clearHeaders();
            this.targetSession = this.ua.invite(target.toString(), inviteOptions, modifiers);
            this.emit("referInviteSent", this);
            if (this.targetSession) {
                this.targetSession.once("progress", function (response) {
                    var statusCode = response.statusCode || 100;
                    var reasonPhrase = response.reasonPhrase;
                    _this.sendNotify(("SIP/2.0 " + statusCode + " " + reasonPhrase).trim());
                    _this.emit("referProgress", _this);
                    if (_this.referredSession) {
                        _this.referredSession.emit("referProgress", _this);
                    }
                });
                this.targetSession.once("accepted", function () {
                    _this.logger.log("Successfully followed the refer");
                    _this.sendNotify("SIP/2.0 200 OK");
                    _this.emit("referAccepted", _this);
                    if (_this.referredSession) {
                        _this.referredSession.emit("referAccepted", _this);
                    }
                });
                var referFailed = function (response) {
                    if (_this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                        return; // No throw here because it is possible this gets called multiple times
                    }
                    _this.logger.log("Refer was not successful. Resuming session");
                    if (response && response.statusCode === 429) {
                        _this.logger.log("Alerting referrer that identity is required.");
                        _this.sendNotify("SIP/2.0 429 Provide Referrer Identity");
                        return;
                    }
                    _this.sendNotify("SIP/2.0 603 Declined");
                    // Must change the status after sending the final Notify or it will not send due to check
                    _this.status = Enums_1.SessionStatus.STATUS_TERMINATED;
                    _this.emit("referRejected", _this);
                    if (_this.referredSession) {
                        _this.referredSession.emit("referRejected");
                    }
                };
                this.targetSession.once("rejected", referFailed);
                this.targetSession.once("failed", referFailed);
            }
        }
        else {
            this.logger.log("Accepted refer, but did not automatically follow it");
            this.sendNotify("SIP/2.0 200 OK");
            this.emit("referAccepted", this);
            if (this.referredSession) {
                this.referredSession.emit("referAccepted", this);
            }
        }
    };
    ReferServerContext.prototype.sendNotify = function (bodyStr) {
        // FIXME: Ported this. Clean it up. Session knows its state.
        if (this.status !== Enums_1.SessionStatus.STATUS_ANSWERED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        if (core_1.Grammar.parse(bodyStr, "sipfrag") === -1) {
            throw new Error("sipfrag body is required to send notify for refer");
        }
        var body = {
            contentDisposition: "render",
            contentType: "message/sipfrag",
            content: bodyStr
        };
        // NOTIFY requests sent in same dialog as in dialog REFER.
        if (this.session) {
            this.session.notify(undefined, {
                extraHeaders: [
                    "Event: refer",
                    "Subscription-State: terminated",
                ],
                body: body
            });
            return;
        }
        // The implicit subscription created by a REFER is the same as a
        // subscription created with a SUBSCRIBE request.  The agent issuing the
        // REFER can terminate this subscription prematurely by unsubscribing
        // using the mechanisms described in [2].  Terminating a subscription,
        // either by explicitly unsubscribing or rejecting NOTIFY, is not an
        // indication that the referenced request should be withdrawn or
        // abandoned.
        // https://tools.ietf.org/html/rfc3515#section-2.4.4
        // NOTIFY requests sent in new dialog for out of dialog REFER.
        // FIXME: TODO: This should be done in a subscribe dialog to satisfy the above.
        var request = this.ua.userAgentCore.makeOutgoingRequestMessage(Constants_1.C.NOTIFY, this.remoteTarget, this.fromUri, this.toUri, {
            cseq: this.cseq += 1,
            callId: this.callId,
            fromTag: this.fromTag,
            toTag: this.toTag,
            routeSet: this.routeSet
        }, [
            "Event: refer",
            "Subscription-State: terminated",
            "Content-Type: message/sipfrag"
        ], body);
        var transport = this.ua.transport;
        if (!transport) {
            throw new Error("Transport undefined.");
        }
        var user = {
            loggerFactory: this.ua.getLoggerFactory()
        };
        var nic = new core_1.NonInviteClientTransaction(request, transport, user);
    };
    ReferServerContext.prototype.on = function (name, callback) { return _super.prototype.on.call(this, name, callback); };
    return ReferServerContext;
}(ServerContext_1.ServerContext));
exports.ReferServerContext = ReferServerContext;


/***/ }),
/* 88 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Utils_1 = __webpack_require__(83);
var ServerContext = /** @class */ (function (_super) {
    tslib_1.__extends(ServerContext, _super);
    function ServerContext(ua, incomingRequest) {
        var _this = _super.call(this) || this;
        _this.incomingRequest = incomingRequest;
        _this.data = {};
        ServerContext.initializer(_this, ua, incomingRequest);
        return _this;
    }
    // hack to get around our multiple inheritance issues
    ServerContext.initializer = function (objectToConstruct, ua, incomingRequest) {
        var request = incomingRequest.message;
        objectToConstruct.type = Enums_1.TypeStrings.ServerContext;
        objectToConstruct.ua = ua;
        objectToConstruct.logger = ua.getLogger("sip.servercontext");
        objectToConstruct.request = request;
        if (request.body) {
            objectToConstruct.body = request.body;
        }
        if (request.hasHeader("Content-Type")) {
            objectToConstruct.contentType = request.getHeader("Content-Type");
        }
        objectToConstruct.method = request.method;
        objectToConstruct.localIdentity = request.to;
        objectToConstruct.remoteIdentity = request.from;
        var hasAssertedIdentity = request.hasHeader("P-Asserted-Identity");
        if (hasAssertedIdentity) {
            var assertedIdentity = request.getHeader("P-Asserted-Identity");
            if (assertedIdentity) {
                objectToConstruct.assertedIdentity = core_1.Grammar.nameAddrHeaderParse(assertedIdentity);
            }
        }
    };
    ServerContext.prototype.progress = function (options) {
        if (options === void 0) { options = {}; }
        options.statusCode = options.statusCode || 180;
        options.minCode = 100;
        options.maxCode = 199;
        options.events = ["progress"];
        return this.reply(options);
    };
    ServerContext.prototype.accept = function (options) {
        if (options === void 0) { options = {}; }
        options.statusCode = options.statusCode || 200;
        options.minCode = 200;
        options.maxCode = 299;
        options.events = ["accepted"];
        return this.reply(options);
    };
    ServerContext.prototype.reject = function (options) {
        if (options === void 0) { options = {}; }
        options.statusCode = options.statusCode || 480;
        options.minCode = 300;
        options.maxCode = 699;
        options.events = ["rejected", "failed"];
        return this.reply(options);
    };
    ServerContext.prototype.reply = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        var statusCode = options.statusCode || 100;
        var minCode = options.minCode || 100;
        var maxCode = options.maxCode || 699;
        var reasonPhrase = Utils_1.Utils.getReasonPhrase(statusCode, options.reasonPhrase);
        var extraHeaders = options.extraHeaders || [];
        var body = options.body ? core_1.fromBodyLegacy(options.body) : undefined;
        var events = options.events || [];
        if (statusCode < minCode || statusCode > maxCode) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        var responseOptions = {
            statusCode: statusCode,
            reasonPhrase: reasonPhrase,
            extraHeaders: extraHeaders,
            body: body
        };
        var response;
        var statusCodeString = statusCode.toString();
        switch (true) {
            case /^100$/.test(statusCodeString):
                response = this.incomingRequest.trying(responseOptions).message;
                break;
            case /^1[0-9]{2}$/.test(statusCodeString):
                response = this.incomingRequest.progress(responseOptions).message;
                break;
            case /^2[0-9]{2}$/.test(statusCodeString):
                response = this.incomingRequest.accept(responseOptions).message;
                break;
            case /^3[0-9]{2}$/.test(statusCodeString):
                response = this.incomingRequest.redirect([], responseOptions).message;
                break;
            case /^[4-6][0-9]{2}$/.test(statusCodeString):
                response = this.incomingRequest.reject(responseOptions).message;
                break;
            default:
                throw new Error("Invalid status code " + statusCode);
        }
        events.forEach(function (event) {
            _this.emit(event, response, reasonPhrase);
        });
        return this;
    };
    ServerContext.prototype.onRequestTimeout = function () {
        this.emit("failed", undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
    };
    ServerContext.prototype.onTransportError = function () {
        this.emit("failed", undefined, Constants_1.C.causes.CONNECTION_ERROR);
    };
    return ServerContext;
}(events_1.EventEmitter));
exports.ServerContext = ServerContext;


/***/ }),
/* 89 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var ClientContext_1 = __webpack_require__(79);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Utils_1 = __webpack_require__(83);
/**
 * Configuration load.
 * @private
 * returns {any}
 */
function loadConfig(configuration) {
    var settings = {
        expires: 600,
        extraContactHeaderParams: [],
        instanceId: undefined,
        params: {},
        regId: undefined,
        registrar: undefined,
    };
    var configCheck = getConfigurationCheck();
    // Check Mandatory parameters
    for (var parameter in configCheck.mandatory) {
        if (!configuration.hasOwnProperty(parameter)) {
            throw new Exceptions_1.Exceptions.ConfigurationError(parameter);
        }
        else {
            var value = configuration[parameter];
            var checkedValue = configCheck.mandatory[parameter](value);
            if (checkedValue !== undefined) {
                settings[parameter] = checkedValue;
            }
            else {
                throw new Exceptions_1.Exceptions.ConfigurationError(parameter, value);
            }
        }
    }
    // Check Optional parameters
    for (var parameter in configCheck.optional) {
        if (configuration.hasOwnProperty(parameter)) {
            var value = configuration[parameter];
            // If the parameter value is an empty array, but shouldn't be, apply its default value.
            if (value instanceof Array && value.length === 0) {
                continue;
            }
            // If the parameter value is null, empty string, or undefined then apply its default value.
            // If it's a number with NaN value then also apply its default value.
            // NOTE: JS does not allow "value === NaN", the following does the work:
            if (value === null || value === "" || value === undefined ||
                (typeof (value) === "number" && isNaN(value))) {
                continue;
            }
            var checkedValue = configCheck.optional[parameter](value);
            if (checkedValue !== undefined) {
                settings[parameter] = checkedValue;
            }
            else {
                throw new Exceptions_1.Exceptions.ConfigurationError(parameter, value);
            }
        }
    }
    return settings;
}
function getConfigurationCheck() {
    return {
        mandatory: {},
        optional: {
            expires: function (expires) {
                if (Utils_1.Utils.isDecimal(expires)) {
                    var value = Number(expires);
                    if (value >= 0) {
                        return value;
                    }
                }
            },
            extraContactHeaderParams: function (extraContactHeaderParams) {
                if (extraContactHeaderParams instanceof Array) {
                    return extraContactHeaderParams.filter(function (contactHeaderParam) { return (typeof contactHeaderParam === "string"); });
                }
            },
            instanceId: function (instanceId) {
                if (typeof instanceId !== "string") {
                    return;
                }
                if ((/^uuid:/i.test(instanceId))) {
                    instanceId = instanceId.substr(5);
                }
                if (core_1.Grammar.parse(instanceId, "uuid") === -1) {
                    return;
                }
                else {
                    return instanceId;
                }
            },
            params: function (params) {
                if (typeof params === "object") {
                    return params;
                }
            },
            regId: function (regId) {
                if (Utils_1.Utils.isDecimal(regId)) {
                    var value = Number(regId);
                    if (value >= 0) {
                        return value;
                    }
                }
            },
            registrar: function (registrar) {
                if (typeof registrar !== "string") {
                    return;
                }
                if (!/^sip:/i.test(registrar)) {
                    registrar = Constants_1.C.SIP + ":" + registrar;
                }
                var parsed = core_1.Grammar.URIParse(registrar);
                if (!parsed) {
                    return;
                }
                else if (parsed.user) {
                    return;
                }
                else {
                    return parsed;
                }
            }
        }
    };
}
var RegisterContext = /** @class */ (function (_super) {
    tslib_1.__extends(RegisterContext, _super);
    function RegisterContext(ua, options) {
        if (options === void 0) { options = {}; }
        var _this = this;
        var settings = loadConfig(options);
        if (settings.regId && !settings.instanceId) {
            settings.instanceId = Utils_1.Utils.newUUID();
        }
        else if (!settings.regId && settings.instanceId) {
            settings.regId = 1;
        }
        settings.params.toUri = settings.params.toUri || ua.configuration.uri;
        settings.params.toDisplayName = settings.params.toDisplayName || ua.configuration.displayName;
        settings.params.callId = settings.params.callId || Utils_1.Utils.createRandomToken(22);
        settings.params.cseq = settings.params.cseq || Math.floor(Math.random() * 10000);
        /* If no 'registrarServer' is set use the 'uri' value without user portion. */
        if (!settings.registrar) {
            var registrarServer = {};
            if (typeof ua.configuration.uri === "object") {
                registrarServer = ua.configuration.uri.clone();
                registrarServer.user = undefined;
            }
            else {
                registrarServer = ua.configuration.uri;
            }
            settings.registrar = registrarServer;
        }
        _this = _super.call(this, ua, Constants_1.C.REGISTER, settings.registrar, settings) || this;
        _this.type = Enums_1.TypeStrings.RegisterContext;
        _this.options = settings;
        _this.logger = ua.getLogger("sip.registercontext");
        _this.logger.log("configuration parameters for RegisterContext after validation:");
        for (var parameter in settings) {
            if (settings.hasOwnProperty(parameter)) {
                _this.logger.log("· " + parameter + ": " + JSON.stringify(settings[parameter]));
            }
        }
        // Registration expires
        _this.expires = settings.expires;
        // Contact header
        _this.contact = ua.contact.toString();
        // Set status
        _this.registered = false;
        ua.transport.on("disconnected", function () { return _this.onTransportDisconnected(); });
        return _this;
    }
    RegisterContext.prototype.register = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // Handle Options
        this.options = tslib_1.__assign(tslib_1.__assign({}, this.options), options);
        var extraHeaders = (this.options.extraHeaders || []).slice();
        extraHeaders.push("Contact: " + this.generateContactHeader(this.expires));
        // this is UA.C.ALLOWED_METHODS, removed to get around circular dependency
        extraHeaders.push("Allow: " + [
            "ACK",
            "CANCEL",
            "INVITE",
            "MESSAGE",
            "BYE",
            "OPTIONS",
            "INFO",
            "NOTIFY",
            "REFER"
        ].toString());
        // Save original extraHeaders to be used in .close
        this.closeHeaders = this.options.closeWithHeaders ?
            (this.options.extraHeaders || []).slice() : [];
        this.receiveResponse = function (response) {
            // Discard responses to older REGISTER/un-REGISTER requests.
            if (response.cseq !== _this.request.cseq) {
                return;
            }
            // Clear registration timer
            if (_this.registrationTimer !== undefined) {
                clearTimeout(_this.registrationTimer);
                _this.registrationTimer = undefined;
            }
            var statusCode = (response.statusCode || 0).toString();
            switch (true) {
                case /^1[0-9]{2}$/.test(statusCode):
                    _this.emit("progress", response);
                    break;
                case /^2[0-9]{2}$/.test(statusCode):
                    _this.emit("accepted", response);
                    var expires = void 0;
                    if (response.hasHeader("expires")) {
                        expires = Number(response.getHeader("expires"));
                    }
                    if (_this.registrationExpiredTimer !== undefined) {
                        clearTimeout(_this.registrationExpiredTimer);
                        _this.registrationExpiredTimer = undefined;
                    }
                    // Search the Contact pointing to us and update the expires value accordingly.
                    var contacts = response.getHeaders("contact").length;
                    if (!contacts) {
                        _this.logger.warn("no Contact header in response to REGISTER, response ignored");
                        break;
                    }
                    var contact = void 0;
                    while (contacts--) {
                        contact = response.parseHeader("contact", contacts);
                        if (contact.uri.user === _this.ua.contact.uri.user) {
                            expires = contact.getParam("expires");
                            break;
                        }
                        else {
                            contact = undefined;
                        }
                    }
                    if (!contact) {
                        _this.logger.warn("no Contact header pointing to us, response ignored");
                        break;
                    }
                    if (expires === undefined) {
                        expires = _this.expires;
                    }
                    // Re-Register before the expiration interval has elapsed.
                    // For that, decrease the expires value. ie: 3 seconds
                    _this.registrationTimer = setTimeout(function () {
                        _this.registrationTimer = undefined;
                        _this.register(_this.options);
                    }, (expires * 1000) - 3000);
                    _this.registrationExpiredTimer = setTimeout(function () {
                        _this.logger.warn("registration expired");
                        if (_this.registered) {
                            _this.unregistered(undefined, Constants_1.C.causes.EXPIRES);
                        }
                    }, expires * 1000);
                    // Save gruu values
                    if (contact.hasParam("temp-gruu")) {
                        _this.ua.contact.tempGruu = core_1.Grammar.URIParse(contact.getParam("temp-gruu").replace(/"/g, ""));
                    }
                    if (contact.hasParam("pub-gruu")) {
                        _this.ua.contact.pubGruu = core_1.Grammar.URIParse(contact.getParam("pub-gruu").replace(/"/g, ""));
                    }
                    _this.registered = true;
                    _this.emit("registered", response || undefined);
                    break;
                // Interval too brief RFC3261 10.2.8
                case /^423$/.test(statusCode):
                    if (response.hasHeader("min-expires")) {
                        // Increase our registration interval to the suggested minimum
                        _this.expires = Number(response.getHeader("min-expires"));
                        // Attempt the registration again immediately
                        _this.register(_this.options);
                    }
                    else { // This response MUST contain a Min-Expires header field
                        _this.logger.warn("423 response received for REGISTER without Min-Expires");
                        _this.registrationFailure(response, Constants_1.C.causes.SIP_FAILURE_CODE);
                    }
                    break;
                default:
                    _this.registrationFailure(response, Utils_1.Utils.sipErrorCause(response.statusCode || 0));
            }
        };
        this.onRequestTimeout = function () {
            _this.registrationFailure(undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
        };
        this.onTransportError = function () {
            _this.registrationFailure(undefined, Constants_1.C.causes.CONNECTION_ERROR);
        };
        this.request.cseq++;
        this.request.setHeader("cseq", this.request.cseq + " REGISTER");
        this.request.extraHeaders = extraHeaders;
        this.send();
    };
    RegisterContext.prototype.close = function () {
        var options = {
            all: false,
            extraHeaders: this.closeHeaders
        };
        this.registeredBefore = this.registered;
        if (this.registered) {
            this.unregister(options);
        }
    };
    RegisterContext.prototype.unregister = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (!this.registered && !options.all) {
            this.logger.warn("Already unregistered, but sending an unregister anyways.");
        }
        var extraHeaders = (options.extraHeaders || []).slice();
        this.registered = false;
        // Clear the registration timer.
        if (this.registrationTimer !== undefined) {
            clearTimeout(this.registrationTimer);
            this.registrationTimer = undefined;
        }
        if (options.all) {
            extraHeaders.push("Contact: *");
            extraHeaders.push("Expires: 0");
        }
        else {
            extraHeaders.push("Contact: " + this.generateContactHeader(0));
        }
        this.receiveResponse = function (response) {
            var statusCode = (response && response.statusCode) ? response.statusCode.toString() : "";
            switch (true) {
                case /^1[0-9]{2}$/.test(statusCode):
                    _this.emit("progress", response);
                    break;
                case /^2[0-9]{2}$/.test(statusCode):
                    _this.emit("accepted", response);
                    if (_this.registrationExpiredTimer !== undefined) {
                        clearTimeout(_this.registrationExpiredTimer);
                        _this.registrationExpiredTimer = undefined;
                    }
                    _this.unregistered(response);
                    break;
                default:
                    _this.unregistered(response, Utils_1.Utils.sipErrorCause(response.statusCode || 0));
            }
        };
        this.onRequestTimeout = function () {
            // Not actually unregistered...
            // this.unregistered(undefined, SIP.C.causes.REQUEST_TIMEOUT);
        };
        this.request.cseq++;
        this.request.setHeader("cseq", this.request.cseq + " REGISTER");
        this.request.extraHeaders = extraHeaders;
        this.send();
    };
    RegisterContext.prototype.unregistered = function (response, cause) {
        this.registered = false;
        this.emit("unregistered", response || undefined, cause || undefined);
    };
    RegisterContext.prototype.send = function () {
        var _this = this;
        this.ua.userAgentCore.register(this.request, {
            onAccept: function (response) { return _this.receiveResponse(response.message); },
            onProgress: function (response) { return _this.receiveResponse(response.message); },
            onRedirect: function (response) { return _this.receiveResponse(response.message); },
            onReject: function (response) { return _this.receiveResponse(response.message); },
            onTrying: function (response) { return _this.receiveResponse(response.message); }
        });
        return this;
    };
    RegisterContext.prototype.registrationFailure = function (response, cause) {
        this.emit("failed", response || undefined, cause || undefined);
    };
    RegisterContext.prototype.onTransportDisconnected = function () {
        this.registeredBefore = this.registered;
        if (this.registrationTimer !== undefined) {
            clearTimeout(this.registrationTimer);
            this.registrationTimer = undefined;
        }
        if (this.registrationExpiredTimer !== undefined) {
            clearTimeout(this.registrationExpiredTimer);
            this.registrationExpiredTimer = undefined;
        }
        if (this.registered) {
            this.unregistered(undefined, Constants_1.C.causes.CONNECTION_ERROR);
        }
    };
    /**
     * Helper Function to generate Contact Header
     * @private
     * returns {String}
     */
    RegisterContext.prototype.generateContactHeader = function (expires) {
        if (expires === void 0) { expires = 0; }
        var contact = this.contact;
        if (this.options.regId && this.options.instanceId) {
            contact += ";reg-id=" + this.options.regId;
            contact += ';+sip.instance="<urn:uuid:' + this.options.instanceId + '>"';
        }
        if (this.options.extraContactHeaderParams) {
            this.options.extraContactHeaderParams.forEach(function (header) {
                contact += ";" + header;
            });
        }
        contact += ";expires=" + expires;
        return contact;
    };
    return RegisterContext;
}(ClientContext_1.ClientContext));
exports.RegisterContext = RegisterContext;


/***/ }),
/* 90 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var ClientContext_1 = __webpack_require__(79);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var ReferContext_1 = __webpack_require__(87);
var ServerContext_1 = __webpack_require__(88);
var DTMF_1 = __webpack_require__(91);
var Utils_1 = __webpack_require__(83);
/*
 * @param {function returning SIP.sessionDescriptionHandler} [sessionDescriptionHandlerFactory]
 *        (See the documentation for the sessionDescriptionHandlerFactory argument of the UA constructor.)
 */
var Session = /** @class */ (function (_super) {
    tslib_1.__extends(Session, _super);
    function Session(sessionDescriptionHandlerFactory) {
        var _this = _super.call(this) || this;
        _this.data = {};
        _this.type = Enums_1.TypeStrings.Session;
        if (!sessionDescriptionHandlerFactory) {
            throw new Exceptions_1.Exceptions.SessionDescriptionHandlerError("A session description handler is required for the session to function");
        }
        _this.status = Session.C.STATUS_NULL;
        _this.pendingReinvite = false;
        _this.sessionDescriptionHandlerFactory = sessionDescriptionHandlerFactory;
        _this.hasOffer = false;
        _this.hasAnswer = false;
        // Session Timers
        _this.timers = {
            ackTimer: undefined,
            expiresTimer: undefined,
            invite2xxTimer: undefined,
            userNoAnswerTimer: undefined,
            rel1xxTimer: undefined,
            prackTimer: undefined
        };
        // Session info
        _this.startTime = undefined;
        _this.endTime = undefined;
        _this.tones = undefined;
        // Hold state
        _this.localHold = false;
        _this.earlySdp = undefined;
        _this.rel100 = Constants_1.C.supported.UNSUPPORTED;
        return _this;
    }
    Session.prototype.dtmf = function (tones, options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // Check Session Status
        if (this.status !== Enums_1.SessionStatus.STATUS_CONFIRMED && this.status !== Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        // Check tones
        if (!tones || !tones.toString().match(/^[0-9A-D#*,]+$/i)) {
            throw new TypeError("Invalid tones: " + tones);
        }
        var sendDTMF = function () {
            if (_this.status === Enums_1.SessionStatus.STATUS_TERMINATED || !_this.tones || _this.tones.length === 0) {
                // Stop sending DTMF
                _this.tones = undefined;
                return;
            }
            var dtmf = _this.tones.shift();
            var timeout;
            if (dtmf.tone === ",") {
                timeout = 2000;
            }
            else {
                dtmf.on("failed", function () { _this.tones = undefined; });
                dtmf.send(options);
                timeout = dtmf.duration + dtmf.interToneGap;
            }
            // Set timeout for the next tone
            setTimeout(sendDTMF, timeout);
        };
        tones = tones.toString();
        var dtmfType = this.ua.configuration.dtmfType;
        if (this.sessionDescriptionHandler && dtmfType === Constants_1.C.dtmfType.RTP) {
            var sent = this.sessionDescriptionHandler.sendDtmf(tones, options);
            if (!sent) {
                this.logger.warn("Attempt to use dtmfType 'RTP' has failed, falling back to INFO packet method");
                dtmfType = Constants_1.C.dtmfType.INFO;
            }
        }
        if (dtmfType === Constants_1.C.dtmfType.INFO) {
            var dtmfs = [];
            var tonesArray = tones.split("");
            while (tonesArray.length > 0) {
                dtmfs.push(new DTMF_1.DTMF(this, tonesArray.shift(), options));
            }
            if (this.tones) {
                // Tones are already queued, just add to the queue
                this.tones = this.tones.concat(dtmfs);
                return this;
            }
            this.tones = dtmfs;
            sendDTMF();
        }
        return this;
    };
    Session.prototype.bye = function (options) {
        if (options === void 0) { options = {}; }
        // Check Session Status
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            this.logger.error("Error: Attempted to send BYE in a terminated session.");
            return this;
        }
        this.logger.log("terminating Session");
        var statusCode = options.statusCode;
        if (statusCode && (statusCode < 200 || statusCode >= 700)) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        options.receiveResponse = function () { };
        return this.sendRequest(Constants_1.C.BYE, options).terminated();
    };
    Session.prototype.refer = function (target, options) {
        if (options === void 0) { options = {}; }
        // Check Session Status
        if (this.status !== Enums_1.SessionStatus.STATUS_CONFIRMED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        this.referContext = new ReferContext_1.ReferClientContext(this.ua, this, target, options);
        this.emit("referRequested", this.referContext);
        this.referContext.refer(options);
        return this.referContext;
    };
    /**
     * Sends in dialog request.
     * @param method Request method.
     * @param options Options bucket.
     */
    Session.prototype.sendRequest = function (method, options) {
        if (options === void 0) { options = {}; }
        if (!this.session) {
            throw new Error("Session undefined.");
        }
        // Convert any "body" option to a Body.
        if (options.body) {
            options.body = Utils_1.Utils.fromBodyObj(options.body);
        }
        // Convert any "receiveResponse" callback option passed to an OutgoingRequestDelegate.
        var delegate;
        var callback = options.receiveResponse;
        if (callback) {
            delegate = {
                onAccept: function (response) { return callback(response.message); },
                onProgress: function (response) { return callback(response.message); },
                onRedirect: function (response) { return callback(response.message); },
                onReject: function (response) { return callback(response.message); },
                onTrying: function (response) { return callback(response.message); }
            };
        }
        var request;
        var requestOptions = options;
        switch (method) {
            case Constants_1.C.BYE:
                request = this.session.bye(delegate, requestOptions);
                break;
            case Constants_1.C.INVITE:
                request = this.session.invite(delegate, requestOptions);
                break;
            case Constants_1.C.REFER:
                request = this.session.refer(delegate, requestOptions);
                break;
            default:
                throw new Error("Unexpected " + method + ". Method not implemented by user agent core.");
        }
        // Ported - Emit the request event
        this.emit(method.toLowerCase(), request.message);
        return this;
    };
    Session.prototype.close = function () {
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            return this;
        }
        this.logger.log("closing INVITE session " + this.id);
        // 1st Step. Terminate media.
        if (this.sessionDescriptionHandler) {
            this.sessionDescriptionHandler.close();
        }
        // 2nd Step. Terminate signaling.
        // Clear session timers
        for (var timer in this.timers) {
            if (this.timers[timer]) {
                clearTimeout(this.timers[timer]);
            }
        }
        this.status = Enums_1.SessionStatus.STATUS_TERMINATED;
        if (this.ua.transport) {
            this.ua.transport.removeListener("transportError", this.errorListener);
        }
        delete this.ua.sessions[this.id];
        return this;
    };
	Session.prototype.mute = function(options) {
	        var pc = this.sessionDescriptionHandler.peerConnection;
	        if(pc.getSenders) {
	            pc.getSenders().forEach( function(sender) {
	                if(sender.track) {
	                    sender.track.enabled = false;
	                }
	            });
	        } else {
	            pc.getLocalStreams().forEach(function (stream) {
	                 stream.getAudioTracks().forEach(function (track) {
	                      track.enabled = false;
	                });
	                stream.getVideoTracks().forEach(function (track) {
	                      track.enabled = false;
	                });
	            });
	        }
	        this.emit("muted");
	    };
	Session.prototype.unmute = function(options) {
	    var pc = this.sessionDescriptionHandler.peerConnection;
	    if (pc.getSenders) {
	        pc.getSenders().forEach(function (sender) {
	            if (sender.track) {
	                sender.track.enabled = true;
	            }
	        });
	    } else {
	        pc.getLocalStreams().forEach(function (stream) {
	            stream.getAudioTracks().forEach(function (track) {
	                track.enabled = true;
	            });
	            stream.getVideoTracks().forEach(function (track) {
	                track.enabled = true;
	            });
	        });
	    }
	    this.emit("unmuted");
	};
    Session.prototype.hold = function (options, modifiers) {
        if (options === void 0) { options = {}; }
        if (modifiers === void 0) { modifiers = []; }
        if (this.status !== Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK && this.status !== Enums_1.SessionStatus.STATUS_CONFIRMED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        if (this.localHold) {
            this.logger.log("Session is already on hold, cannot put it on hold again");
            return;
        }
        options.modifiers = modifiers;
        if (this.sessionDescriptionHandler) {
            options.modifiers.push(this.sessionDescriptionHandler.holdModifier);
        }
        this.localHold = true;
        this.sendReinvite(options);
        this.emit("hold");
    };
    Session.prototype.unhold = function (options, modifiers) {
        if (options === void 0) { options = {}; }
        if (modifiers === void 0) { modifiers = []; }
        if (this.status !== Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK && this.status !== Enums_1.SessionStatus.STATUS_CONFIRMED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        if (!this.localHold) {
            this.logger.log("Session is not on hold, cannot unhold it");
            return;
        }
        options.modifiers = modifiers;
        this.localHold = false;
        this.sendReinvite(options);
        this.emit("unhold");
    };
    Session.prototype.reinvite = function (options, modifiers) {
        if (options === void 0) { options = {}; }
        if (modifiers === void 0) { modifiers = []; }
        options.modifiers = modifiers;
        return this.sendReinvite(options);
    };
    Session.prototype.terminate = function (options) {
        // here for types and to be overridden
        return this;
    };
    Session.prototype.onTransportError = function () {
        if (this.status !== Enums_1.SessionStatus.STATUS_CONFIRMED && this.status !== Enums_1.SessionStatus.STATUS_TERMINATED) {
            this.failed(undefined, Constants_1.C.causes.CONNECTION_ERROR);
        }
    };
    Session.prototype.onRequestTimeout = function () {
        if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
            this.terminated(undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
        }
        else if (this.status !== Enums_1.SessionStatus.STATUS_TERMINATED) {
            this.failed(undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
            this.terminated(undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
        }
    };
    Session.prototype.onDialogError = function (response) {
        if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
            this.terminated(response, Constants_1.C.causes.DIALOG_ERROR);
        }
        else if (this.status !== Enums_1.SessionStatus.STATUS_TERMINATED) {
            this.failed(response, Constants_1.C.causes.DIALOG_ERROR);
            this.terminated(response, Constants_1.C.causes.DIALOG_ERROR);
        }
    };
    Session.prototype.on = function (name, callback) {
        return _super.prototype.on.call(this, name, callback);
    };
    Session.prototype.onAck = function (incomingRequest) {
        var _this = this;
        var confirmSession = function () {
            clearTimeout(_this.timers.ackTimer);
            clearTimeout(_this.timers.invite2xxTimer);
            _this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
            var contentDisp = incomingRequest.message.getHeader("Content-Disposition");
            if (contentDisp && contentDisp.type === "render") {
                _this.renderbody = incomingRequest.message.body;
                _this.rendertype = incomingRequest.message.getHeader("Content-Type");
            }
            _this.emit("confirmed", incomingRequest.message);
        };
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK) {
            if (this.sessionDescriptionHandler &&
                this.sessionDescriptionHandler.hasDescription(incomingRequest.message.getHeader("Content-Type") || "")) {
                this.hasAnswer = true;
                this.sessionDescriptionHandler.setDescription(incomingRequest.message.body, this.sessionDescriptionHandlerOptions, this.modifiers).catch(function (e) {
                    _this.logger.warn(e);
                    _this.terminate({
                        statusCode: "488",
                        reasonPhrase: "Bad Media Description"
                    });
                    _this.failed(incomingRequest.message, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                    _this.terminated(incomingRequest.message, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                    throw e;
                }).then(function () { return confirmSession(); });
            }
            else {
                confirmSession();
            }
        }
    };
    Session.prototype.receiveRequest = function (incomingRequest) {
        switch (incomingRequest.message.method) { // TODO: This needs a default case
            case Constants_1.C.BYE:
                incomingRequest.accept();
                if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
                    this.emit("bye", incomingRequest.message);
                    this.terminated(incomingRequest.message, Constants_1.C.BYE);
                }
                break;
            case Constants_1.C.INVITE:
                if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
                    this.logger.log("re-INVITE received");
                    this.receiveReinvite(incomingRequest);
                }
                break;
            case Constants_1.C.INFO:
                if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED || this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK) {
                    if (this.onInfo) {
                        return this.onInfo(incomingRequest.message);
                    }
                    var contentType = incomingRequest.message.getHeader("content-type");
                    if (contentType) {
                        if (contentType.match(/^application\/dtmf-relay/i)) {
                            if (incomingRequest.message.body) {
                                var body = incomingRequest.message.body.split("\r\n", 2);
                                if (body.length === 2) {
                                    var tone = void 0;
                                    var duration = void 0;
                                    var regTone = /^(Signal\s*?=\s*?)([0-9A-D#*]{1})(\s)?.*/;
                                    if (regTone.test(body[0])) {
                                        tone = body[0].replace(regTone, "$2");
                                    }
                                    var regDuration = /^(Duration\s?=\s?)([0-9]{1,4})(\s)?.*/;
                                    if (regDuration.test(body[1])) {
                                        duration = parseInt(body[1].replace(regDuration, "$2"), 10);
                                    }
                                    if (tone && duration) {
                                        new DTMF_1.DTMF(this, tone, { duration: duration }).init_incoming(incomingRequest);
                                    }
                                }
                            }
                        }
                        else {
                            incomingRequest.reject({
                                statusCode: 415,
                                extraHeaders: ["Accept: application/dtmf-relay"]
                            });
                        }
                    }
                }
                break;
            case Constants_1.C.REFER:
                if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
                    this.logger.log("REFER received");
                    this.referContext = new ReferContext_1.ReferServerContext(this.ua, incomingRequest, this.session);
                    if (this.listeners("referRequested").length) {
                        this.emit("referRequested", this.referContext);
                    }
                    else {
                        this.logger.log("No referRequested listeners, automatically accepting and following the refer");
                        var options = { followRefer: true };
                        if (this.passedOptions) {
                            options.inviteOptions = this.passedOptions;
                        }
                        this.referContext.accept(options, this.modifiers);
                    }
                }
                break;
            case Constants_1.C.NOTIFY:
                if (this.referContext &&
                    this.referContext.type === Enums_1.TypeStrings.ReferClientContext &&
                    incomingRequest.message.hasHeader("event") &&
                    /^refer(;.*)?$/.test(incomingRequest.message.getHeader("event"))) {
                    this.referContext.receiveNotify(incomingRequest);
                    return;
                }
                incomingRequest.accept();
                this.emit("notify", incomingRequest.message);
                break;
        }
    };
    // In dialog INVITE Reception
    Session.prototype.receiveReinvite = function (incomingRequest) {
        // TODO: Should probably check state of the session
        var _this = this;
        this.emit("reinvite", this, incomingRequest.message);
        if (incomingRequest.message.hasHeader("P-Asserted-Identity")) {
            this.assertedIdentity =
                core_1.Grammar.nameAddrHeaderParse(incomingRequest.message.getHeader("P-Asserted-Identity"));
        }
        var promise;
        if (!this.sessionDescriptionHandler) {
            this.logger.warn("No SessionDescriptionHandler to reinvite");
            return;
        }
        if (incomingRequest.message.getHeader("Content-Length") === "0" &&
            !incomingRequest.message.getHeader("Content-Type")) { // Invite w/o SDP
            promise = this.sessionDescriptionHandler.getDescription(this.sessionDescriptionHandlerOptions, this.modifiers);
        }
        else if (this.sessionDescriptionHandler.hasDescription(incomingRequest.message.getHeader("Content-Type") || "")) {
            // Invite w/ SDP
            promise = this.sessionDescriptionHandler.setDescription(incomingRequest.message.body, this.sessionDescriptionHandlerOptions, this.modifiers).then(this.sessionDescriptionHandler.getDescription.bind(this.sessionDescriptionHandler, this.sessionDescriptionHandlerOptions, this.modifiers));
        }
        else { // Bad Packet (should never get hit)
            incomingRequest.reject({ statusCode: 415 });
            this.emit("reinviteFailed", this);
            return;
        }
        promise.catch(function (e) {
            var statusCode;
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                statusCode = 500;
            }
            else if (e.type === Enums_1.TypeStrings.RenegotiationError) {
                _this.emit("renegotiationError", e);
                _this.logger.warn(e.toString());
                statusCode = 488;
            }
            else {
                _this.logger.error(e);
                statusCode = 488;
            }
            incomingRequest.reject({ statusCode: statusCode });
            _this.emit("reinviteFailed", _this);
            // TODO: This could be better
            throw e;
        }).then(function (description) {
            var extraHeaders = ["Contact: " + _this.contact];
            incomingRequest.accept({
                statusCode: 200,
                extraHeaders: extraHeaders,
                body: Utils_1.Utils.fromBodyObj(description)
            });
            _this.status = Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK;
            _this.emit("reinviteAccepted", _this);
        });
    };
    Session.prototype.sendReinvite = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (this.pendingReinvite) {
            this.logger.warn("Reinvite in progress. Please wait until complete, then try again.");
            return;
        }
        if (!this.sessionDescriptionHandler) {
            this.logger.warn("No SessionDescriptionHandler, can't reinvite..");
            return;
        }
        this.pendingReinvite = true;
        options.modifiers = options.modifiers || [];
        var extraHeaders = (options.extraHeaders || []).slice();
        extraHeaders.push("Contact: " + this.contact);
        // this is UA.C.ALLOWED_METHODS, removed to get around circular dependency
        extraHeaders.push("Allow: " + [
            "ACK",
            "CANCEL",
            "INVITE",
            "MESSAGE",
            "BYE",
            "OPTIONS",
            "INFO",
            "NOTIFY",
            "REFER"
        ].toString());
        this.sessionDescriptionHandler.getDescription(options.sessionDescriptionHandlerOptions, options.modifiers)
            .then(function (description) {
            if (!_this.session) {
                throw new Error("Session undefined.");
            }
            var delegate = {
                onAccept: function (response) {
                    if (_this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                        _this.logger.error("Received reinvite response, but in STATUS_TERMINATED");
                        // TODO: Do we need to send a SIP response?
                        return;
                    }
                    if (!_this.pendingReinvite) {
                        _this.logger.error("Received reinvite response, but have no pending reinvite");
                        // TODO: Do we need to send a SIP response?
                        return;
                    }
                    // FIXME: Why is this set here?
                    _this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                    // 17.1.1.1 - For each final response that is received at the client transaction,
                    // the client transaction sends an ACK,
                    _this.emit("ack", response.ack());
                    _this.pendingReinvite = false;
                    // TODO: All of these timers should move into the Transaction layer
                    clearTimeout(_this.timers.invite2xxTimer);
                    if (!_this.sessionDescriptionHandler ||
                        !_this.sessionDescriptionHandler.hasDescription(response.message.getHeader("Content-Type") || "")) {
                        _this.logger.error("2XX response received to re-invite but did not have a description");
                        _this.emit("reinviteFailed", _this);
                        _this.emit("renegotiationError", new Exceptions_1.Exceptions.RenegotiationError("2XX response received to re-invite but did not have a description"));
                        return;
                    }
                    _this.sessionDescriptionHandler
                        .setDescription(response.message.body, _this.sessionDescriptionHandlerOptions, _this.modifiers)
                        .catch(function (e) {
                        _this.logger.error("Could not set the description in 2XX response");
                        _this.logger.error(e);
                        _this.emit("reinviteFailed", _this);
                        _this.emit("renegotiationError", e);
                        _this.sendRequest(Constants_1.C.BYE, {
                            extraHeaders: ["Reason: " + Utils_1.Utils.getReasonHeaderValue(488, "Not Acceptable Here")]
                        });
                        _this.terminated(undefined, Constants_1.C.causes.INCOMPATIBLE_SDP);
                        throw e;
                    })
                        .then(function () {
                        _this.emit("reinviteAccepted", _this);
                    });
                },
                onProgress: function (response) {
                    return;
                },
                onRedirect: function (response) {
                    // FIXME: Does ACK need to be sent?
                    _this.pendingReinvite = false;
                    _this.logger.log("Received a non 1XX or 2XX response to a re-invite");
                    _this.emit("reinviteFailed", _this);
                    _this.emit("renegotiationError", new Exceptions_1.Exceptions.RenegotiationError("Invalid response to a re-invite"));
                },
                onReject: function (response) {
                    // FIXME: Does ACK need to be sent?
                    _this.pendingReinvite = false;
                    _this.logger.log("Received a non 1XX or 2XX response to a re-invite");
                    _this.emit("reinviteFailed", _this);
                    _this.emit("renegotiationError", new Exceptions_1.Exceptions.RenegotiationError("Invalid response to a re-invite"));
                },
                onTrying: function (response) {
                    return;
                }
            };
            var requestOptions = {
                extraHeaders: extraHeaders,
                body: Utils_1.Utils.fromBodyObj(description)
            };
            _this.session.invite(delegate, requestOptions);
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.RenegotiationError) {
                _this.pendingReinvite = false;
                _this.emit("renegotiationError", e);
                _this.logger.warn("Renegotiation Error");
                _this.logger.warn(e.toString());
                throw e;
            }
            _this.logger.error("sessionDescriptionHandler error");
            _this.logger.error(e);
            throw e;
        });
    };
    Session.prototype.failed = function (response, cause) {
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            return this;
        }
        this.emit("failed", response, cause);
        return this;
    };
    Session.prototype.rejected = function (response, cause) {
        this.emit("rejected", response, cause);
        return this;
    };
    Session.prototype.canceled = function () {
        if (this.sessionDescriptionHandler) {
            this.sessionDescriptionHandler.close();
        }
        this.emit("cancel");
        return this;
    };
    Session.prototype.accepted = function (response, cause) {
        if (!(response instanceof String)) {
            cause = Utils_1.Utils.getReasonPhrase((response && response.statusCode) || 0, cause);
        }
        this.startTime = new Date();
        if (this.replacee) {
            this.replacee.emit("replaced", this);
            this.replacee.terminate();
        }
        this.emit("accepted", response, cause);
        return this;
    };
    Session.prototype.terminated = function (message, cause) {
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            return this;
        }
        this.endTime = new Date();
        this.close();
        this.emit("terminated", message, cause);
        return this;
    };
    Session.prototype.connecting = function (request) {
        this.emit("connecting", { request: request });
        return this;
    };
    Session.C = Enums_1.SessionStatus;
    return Session;
}(events_1.EventEmitter));
exports.Session = Session;
// tslint:disable-next-line:max-classes-per-file
var InviteServerContext = /** @class */ (function (_super) {
    tslib_1.__extends(InviteServerContext, _super);
    function InviteServerContext(ua, incomingInviteRequest) {
        var _this = this;
        if (!ua.configuration.sessionDescriptionHandlerFactory) {
            ua.logger.warn("Can't build ISC without SDH Factory");
            throw new Error("ISC Constructor Failed");
        }
        _this = _super.call(this, ua.configuration.sessionDescriptionHandlerFactory) || this;
        _this._canceled = false;
        _this.rseq = Math.floor(Math.random() * 10000);
        _this.incomingRequest = incomingInviteRequest;
        var request = incomingInviteRequest.message;
        ServerContext_1.ServerContext.initializer(_this, ua, incomingInviteRequest);
        _this.type = Enums_1.TypeStrings.InviteServerContext;
        var contentDisp = request.parseHeader("Content-Disposition");
        if (contentDisp && contentDisp.type === "render") {
            _this.renderbody = request.body;
            _this.rendertype = request.getHeader("Content-Type");
        }
        _this.status = Enums_1.SessionStatus.STATUS_INVITE_RECEIVED;
        _this.fromTag = request.fromTag;
        _this.id = request.callId + _this.fromTag;
        _this.request = request;
        _this.contact = _this.ua.contact.toString();
        _this.logger = ua.getLogger("sip.inviteservercontext", _this.id);
        // Save the session into the ua sessions collection.
        _this.ua.sessions[_this.id] = _this;
        // Set 100rel if necessary
        var set100rel = function (header, relSetting) {
            if (request.hasHeader(header) && request.getHeader(header).toLowerCase().indexOf("100rel") >= 0) {
                _this.rel100 = relSetting;
            }
        };
        set100rel("require", Constants_1.C.supported.REQUIRED);
        set100rel("supported", Constants_1.C.supported.SUPPORTED);
        // Set the toTag on the incoming request to the toTag which
        // will be used in the response to the incoming request!!!
        // FIXME: HACK: This is a hack to port an existing behavior.
        // The behavior being ported appears to be a hack itself,
        // so this is a hack to port a hack. At least one test spec
        // relies on it (which is yet another hack).
        _this.request.toTag = incomingInviteRequest.toTag;
        _this.status = Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER;
        // Set userNoAnswerTimer
        _this.timers.userNoAnswerTimer = setTimeout(function () {
            incomingInviteRequest.reject({ statusCode: 408 });
            _this.failed(request, Constants_1.C.causes.NO_ANSWER);
            _this.terminated(request, Constants_1.C.causes.NO_ANSWER);
        }, _this.ua.configuration.noAnswerTimeout || 60);
        /* Set expiresTimer
        * RFC3261 13.3.1
        */
        // Get the Expires header value if exists
        if (request.hasHeader("expires")) {
            var expires = Number(request.getHeader("expires") || 0) * 1000;
            _this.timers.expiresTimer = setTimeout(function () {
                if (_this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER) {
                    incomingInviteRequest.reject({ statusCode: 487 });
                    _this.failed(request, Constants_1.C.causes.EXPIRES);
                    _this.terminated(request, Constants_1.C.causes.EXPIRES);
                }
            }, expires);
        }
        _this.errorListener = _this.onTransportError.bind(_this);
        if (ua.transport) {
            ua.transport.on("transportError", _this.errorListener);
        }
        return _this;
    }
    Object.defineProperty(InviteServerContext.prototype, "autoSendAnInitialProvisionalResponse", {
        /**
         * If true, a first provisional response after the 100 Trying
         * will be sent automatically. This is false it the UAC required
         * reliable provisional responses (100rel in Require header),
         * otherwise it is true. The provisional is sent by calling
         * `progress()` without any options.
         *
         * FIXME: TODO: It seems reasonable that the ISC user should
         * be able to optionally disable this behavior. As the provisional
         * is sent prior to the "invite" event being emitted, it's a known
         * issue that the ISC user cannot register listeners or do any other
         * setup prior to the call to `progress()`. As an example why this is
         * an issue, setting `ua.configuration.rel100` to REQUIRED will result
         * in an attempt by `progress()` to send a 183 with SDP produced by
         * calling `getDescription()` on a session description handler, but
         * the ISC user cannot perform any potentially required session description
         * handler initialization (thus preventing the utilization of setting
         * `ua.configuration.rel100` to REQUIRED). That begs the question of
         * why this behavior is disabled when the UAC requires 100rel but not
         * when the UAS requires 100rel? But ignoring that, it's just one example
         * of a class of cases where the ISC user needs to do something prior
         * to the first call to `progress()` and is unable to do so.
         */
        get: function () {
            return this.rel100 === Constants_1.C.supported.REQUIRED ? false : true;
        },
        enumerable: true,
        configurable: true
    });
    // type hack for servercontext interface
    InviteServerContext.prototype.reply = function (options) {
        if (options === void 0) { options = {}; }
        return this;
    };
    // typing note: this was the only function using its super in ServerContext
    // so the bottom half of this function is copied and paired down from that
    InviteServerContext.prototype.reject = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // Check Session Status
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        this.logger.log("rejecting RTCSession");
        var statusCode = options.statusCode || 480;
        var reasonPhrase = Utils_1.Utils.getReasonPhrase(statusCode, options.reasonPhrase);
        var extraHeaders = options.extraHeaders || [];
        if (statusCode < 300 || statusCode > 699) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        var body = options.body ? core_1.fromBodyLegacy(options.body) : undefined;
        // FIXME: Need to redirect to someplae
        var response = statusCode < 400 ?
            this.incomingRequest.redirect([], { statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body }) :
            this.incomingRequest.reject({ statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body });
        (["rejected", "failed"]).forEach(function (event) {
            _this.emit(event, response.message, reasonPhrase);
        });
        return this.terminated();
    };
    /**
     * Accept the incoming INVITE request to start a Session.
     * Replies to the INVITE request with a 200 Ok response.
     * @param options Options bucket.
     */
    InviteServerContext.prototype.accept = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // FIXME: Need guard against calling more than once.
        this._accept(options)
            .then(function (_a) {
            var message = _a.message, session = _a.session;
            session.delegate = {
                onAck: function (ackRequest) { return _this.onAck(ackRequest); },
                onAckTimeout: function () { return _this.onAckTimeout(); },
                onBye: function (byeRequest) { return _this.receiveRequest(byeRequest); },
                onInfo: function (infoRequest) { return _this.receiveRequest(infoRequest); },
                onInvite: function (inviteRequest) { return _this.receiveRequest(inviteRequest); },
                onNotify: function (notifyRequest) { return _this.receiveRequest(notifyRequest); },
                onPrack: function (prackRequest) { return _this.receiveRequest(prackRequest); },
                onRefer: function (referRequest) { return _this.receiveRequest(referRequest); }
            };
            _this.session = session;
            _this.status = Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK;
            _this.accepted(message, Utils_1.Utils.getReasonPhrase(200));
        })
            .catch(function (error) {
            _this.onContextError(error);
            // FIXME: Assuming error due to async race on CANCEL and eating error.
            if (!_this._canceled) {
                throw error;
            }
        });
        return this;
    };
    /**
     * Report progress to the the caller.
     * Replies to the INVITE request with a 1xx provisional response.
     * @param options Options bucket.
     */
    InviteServerContext.prototype.progress = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // Ported
        var statusCode = options.statusCode || 180;
        if (statusCode < 100 || statusCode > 199) {
            throw new TypeError("Invalid statusCode: " + statusCode);
        }
        // Ported
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            this.logger.warn("Unexpected call for progress while terminated, ignoring");
            return this;
        }
        // Added
        if (this.status === Enums_1.SessionStatus.STATUS_ANSWERED) {
            this.logger.warn("Unexpected call for progress while answered, ignoring");
            return this;
        }
        // Added
        if (this.status === Enums_1.SessionStatus.STATUS_ANSWERED_WAITING_FOR_PRACK) {
            this.logger.warn("Unexpected call for progress while answered (waiting for prack), ignoring");
            return this;
        }
        // After the first reliable provisional response for a request has been
        // acknowledged, the UAS MAY send additional reliable provisional
        // responses.  The UAS MUST NOT send a second reliable provisional
        // response until the first is acknowledged.  After the first, it is
        // RECOMMENDED that the UAS not send an additional reliable provisional
        // response until the previous is acknowledged.  The first reliable
        // provisional response receives special treatment because it conveys
        // the initial sequence number.  If additional reliable provisional
        // responses were sent before the first was acknowledged, the UAS could
        // not be certain these were received in order.
        // https://tools.ietf.org/html/rfc3262#section-3
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_PRACK) {
            this.logger.warn("Unexpected call for progress while waiting for prack, ignoring");
            return this;
        }
        // Ported
        if (options.statusCode === 100) {
            try {
                this.incomingRequest.trying();
            }
            catch (error) {
                this.onContextError(error);
                // FIXME: Assuming error due to async race on CANCEL and eating error.
                if (!this._canceled) {
                    throw error;
                }
            }
            return this;
        }
        // Standard provisional response.
        if (!(this.rel100 === Constants_1.C.supported.REQUIRED) &&
            !(this.rel100 === Constants_1.C.supported.SUPPORTED && options.rel100) &&
            !(this.rel100 === Constants_1.C.supported.SUPPORTED && this.ua.configuration.rel100 === Constants_1.C.supported.REQUIRED)) {
            this._progress(options)
                .catch(function (error) {
                _this.onContextError(error);
                // FIXME: Assuming error due to async race on CANCEL and eating error.
                if (!_this._canceled) {
                    throw error;
                }
            });
            return this;
        }
        // Reliable provisional response.
        this._reliableProgressWaitForPrack(options)
            .catch(function (error) {
            _this.onContextError(error);
            // FIXME: Assuming error due to async race on CANCEL and eating error.
            if (!_this._canceled) {
                throw error;
            }
        });
        return this;
    };
    /**
     * Reject an unaccepted incoming INVITE request or send BYE if established session.
     * @param options Options bucket. FIXME: This options bucket needs to be typed.
     */
    InviteServerContext.prototype.terminate = function (options) {
        // The caller's UA MAY send a BYE for either confirmed or early dialogs,
        // and the callee's UA MAY send a BYE on confirmed dialogs, but MUST NOT
        // send a BYE on early dialogs. However, the callee's UA MUST NOT send a
        // BYE on a confirmed dialog until it has received an ACK for its 2xx
        // response or until the server transaction times out.
        // https://tools.ietf.org/html/rfc3261#section-15
        var _this = this;
        if (options === void 0) { options = {}; }
        // We don't yet have a dialog, so reject request.
        if (!this.session) {
            this.reject(options);
            return this;
        }
        switch (this.session.sessionState) {
            case core_1.SessionState.Initial:
                this.reject(options);
                return this;
            case core_1.SessionState.Early:
                this.reject(options);
                return this;
            case core_1.SessionState.AckWait:
                this.session.delegate = {
                    // When ACK shows up, say BYE.
                    onAck: function () {
                        _this.sendRequest(Constants_1.C.BYE, options);
                    },
                    // Or the server transaction times out before the ACK arrives.
                    onAckTimeout: function () {
                        _this.sendRequest(Constants_1.C.BYE, options);
                    }
                };
                // Ported
                this.emit("bye", this.request);
                this.terminated();
                return this;
            case core_1.SessionState.Confirmed:
                this.bye(options);
                return this;
            case core_1.SessionState.Terminated:
                return this;
            default:
                return this;
        }
    };
    InviteServerContext.prototype.onCancel = function (message) {
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER ||
            this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_PRACK ||
            this.status === Enums_1.SessionStatus.STATUS_ANSWERED_WAITING_FOR_PRACK ||
            this.status === Enums_1.SessionStatus.STATUS_EARLY_MEDIA ||
            this.status === Enums_1.SessionStatus.STATUS_ANSWERED) {
            this.status = Enums_1.SessionStatus.STATUS_CANCELED;
            this.incomingRequest.reject({ statusCode: 487 });
            this.canceled();
            this.rejected(message, Constants_1.C.causes.CANCELED);
            this.failed(message, Constants_1.C.causes.CANCELED);
            this.terminated(message, Constants_1.C.causes.CANCELED);
        }
    };
    InviteServerContext.prototype.receiveRequest = function (incomingRequest) {
        var _this = this;
        switch (incomingRequest.message.method) {
            case Constants_1.C.PRACK:
                if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_PRACK ||
                    this.status === Enums_1.SessionStatus.STATUS_ANSWERED_WAITING_FOR_PRACK) {
                    if (!this.hasAnswer) {
                        this.sessionDescriptionHandler = this.setupSessionDescriptionHandler();
                        this.emit("SessionDescriptionHandler-created", this.sessionDescriptionHandler);
                        if (this.sessionDescriptionHandler.hasDescription(incomingRequest.message.getHeader("Content-Type") || "")) {
                            this.hasAnswer = true;
                            this.sessionDescriptionHandler.setDescription(incomingRequest.message.body, this.sessionDescriptionHandlerOptions, this.modifiers).then(function () {
                                clearTimeout(_this.timers.rel1xxTimer);
                                clearTimeout(_this.timers.prackTimer);
                                incomingRequest.accept();
                                if (_this.status === Enums_1.SessionStatus.STATUS_ANSWERED_WAITING_FOR_PRACK) {
                                    _this.status = Enums_1.SessionStatus.STATUS_EARLY_MEDIA;
                                    _this.accept();
                                }
                                _this.status = Enums_1.SessionStatus.STATUS_EARLY_MEDIA;
                            }, function (e) {
                                _this.logger.warn(e);
                                _this.terminate({
                                    statusCode: "488",
                                    reasonPhrase: "Bad Media Description"
                                });
                                _this.failed(incomingRequest.message, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                                _this.terminated(incomingRequest.message, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                            });
                        }
                        else {
                            this.terminate({
                                statusCode: "488",
                                reasonPhrase: "Bad Media Description"
                            });
                            this.failed(incomingRequest.message, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                            this.terminated(incomingRequest.message, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                        }
                    }
                    else {
                        clearTimeout(this.timers.rel1xxTimer);
                        clearTimeout(this.timers.prackTimer);
                        incomingRequest.accept();
                        if (this.status === Enums_1.SessionStatus.STATUS_ANSWERED_WAITING_FOR_PRACK) {
                            this.status = Enums_1.SessionStatus.STATUS_EARLY_MEDIA;
                            this.accept();
                        }
                        this.status = Enums_1.SessionStatus.STATUS_EARLY_MEDIA;
                    }
                }
                else if (this.status === Enums_1.SessionStatus.STATUS_EARLY_MEDIA) {
                    incomingRequest.accept();
                }
                break;
            default:
                _super.prototype.receiveRequest.call(this, incomingRequest);
                break;
        }
    };
    // Internal Function to setup the handler consistently
    InviteServerContext.prototype.setupSessionDescriptionHandler = function () {
        if (this.sessionDescriptionHandler) {
            return this.sessionDescriptionHandler;
        }
        return this.sessionDescriptionHandlerFactory(this, this.ua.configuration.sessionDescriptionHandlerFactoryOptions);
    };
    InviteServerContext.prototype.generateResponseOfferAnswer = function (options) {
        if (!this.session) {
            var body = core_1.getBody(this.incomingRequest.message);
            if (!body || body.contentDisposition !== "session") {
                return this.getOffer(options);
            }
            else {
                return this.setOfferAndGetAnswer(body, options);
            }
        }
        else {
            switch (this.session.signalingState) {
                case core_1.SignalingState.Initial:
                    return this.getOffer(options);
                case core_1.SignalingState.Stable:
                    return Promise.resolve(undefined);
                case core_1.SignalingState.HaveLocalOffer:
                    // o  Once the UAS has sent or received an answer to the initial
                    // offer, it MUST NOT generate subsequent offers in any responses
                    // to the initial INVITE.  This means that a UAS based on this
                    // specification alone can never generate subsequent offers until
                    // completion of the initial transaction.
                    // https://tools.ietf.org/html/rfc3261#section-13.2.1
                    return Promise.resolve(undefined);
                case core_1.SignalingState.HaveRemoteOffer:
                    if (!this.session.offer) {
                        throw new Error("Session offer undefined");
                    }
                    return this.setOfferAndGetAnswer(this.session.offer, options);
                case core_1.SignalingState.Closed:
                    throw new Error("Invalid signaling state " + this.session.signalingState + ".");
                default:
                    throw new Error("Invalid signaling state " + this.session.signalingState + ".");
            }
        }
    };
    InviteServerContext.prototype.handlePrackOfferAnswer = function (request, options) {
        if (!this.session) {
            throw new Error("Session undefined.");
        }
        // If the PRACK doesn't have an offer/answer, nothing to be done.
        var body = core_1.getBody(request.message);
        if (!body || body.contentDisposition !== "session") {
            return Promise.resolve(undefined);
        }
        // If the UAC receives a reliable provisional response with an offer
        // (this would occur if the UAC sent an INVITE without an offer, in
        // which case the first reliable provisional response will contain the
        // offer), it MUST generate an answer in the PRACK.  If the UAC receives
        // a reliable provisional response with an answer, it MAY generate an
        // additional offer in the PRACK.  If the UAS receives a PRACK with an
        // offer, it MUST place the answer in the 2xx to the PRACK.
        // https://tools.ietf.org/html/rfc3262#section-5
        switch (this.session.signalingState) {
            case core_1.SignalingState.Initial:
                // State should never be reached as first reliable provisional response must have answer/offer.
                throw new Error("Invalid signaling state " + this.session.signalingState + ".");
            case core_1.SignalingState.Stable:
                // Receved answer.
                return this.setAnswer(body, options).then(function () { return undefined; });
            case core_1.SignalingState.HaveLocalOffer:
                // State should never be reached as local offer would be answered by this PRACK
                throw new Error("Invalid signaling state " + this.session.signalingState + ".");
            case core_1.SignalingState.HaveRemoteOffer:
                // Receved offer, generate answer.
                return this.setOfferAndGetAnswer(body, options);
            case core_1.SignalingState.Closed:
                throw new Error("Invalid signaling state " + this.session.signalingState + ".");
            default:
                throw new Error("Invalid signaling state " + this.session.signalingState + ".");
        }
    };
    /**
     * Called when session canceled.
     */
    InviteServerContext.prototype.canceled = function () {
        this._canceled = true;
        return _super.prototype.canceled.call(this);
    };
    /**
     * Called when session terminated.
     * Using it here just for the PRACK timeout.
     */
    InviteServerContext.prototype.terminated = function (message, cause) {
        this.prackNeverArrived();
        return _super.prototype.terminated.call(this, message, cause);
    };
    /**
     * A version of `accept` which resolves a session when the 200 Ok response is sent.
     * @param options Options bucket.
     * @throws {ClosedSessionDescriptionHandlerError} The session description handler closed before method completed.
     * @throws {TransactionStateError} The transaction state does not allow for `accept()` to be called.
     *                                 Note that the transaction state can change while this call is in progress.
     */
    InviteServerContext.prototype._accept = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        // FIXME: Ported - callback for in dialog INFO requests.
        // Turns out accept() can be called more than once if we are waiting
        // for a PRACK in which case "options" get completely tossed away.
        // So this is broken in that case (and potentially other uses of options).
        // Tempted to just try to fix it now, but leaving it broken for the moment.
        this.onInfo = options.onInfo;
        // The UAS MAY send a final response to the initial request before
        // having received PRACKs for all unacknowledged reliable provisional
        // responses, unless the final response is 2xx and any of the
        // unacknowledged reliable provisional responses contained a session
        // description.  In that case, it MUST NOT send a final response until
        // those provisional responses are acknowledged.  If the UAS does send a
        // final response when reliable responses are still unacknowledged, it
        // SHOULD NOT continue to retransmit the unacknowledged reliable
        // provisional responses, but it MUST be prepared to process PRACK
        // requests for those outstanding responses.  A UAS MUST NOT send new
        // reliable provisional responses (as opposed to retransmissions of
        // unacknowledged ones) after sending a final response to a request.
        // https://tools.ietf.org/html/rfc3262#section-3
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_PRACK) {
            this.status = Enums_1.SessionStatus.STATUS_ANSWERED_WAITING_FOR_PRACK;
            return this.waitForArrivalOfPrack()
                .then(function () {
                _this.status = Enums_1.SessionStatus.STATUS_ANSWERED;
                clearTimeout(_this.timers.userNoAnswerTimer); // Ported
            })
                .then(function () { return _this.generateResponseOfferAnswer(options); })
                .then(function (body) { return _this.incomingRequest.accept({ statusCode: 200, body: body }); });
        }
        // Ported
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER) {
            this.status = Enums_1.SessionStatus.STATUS_ANSWERED;
        }
        else {
            return Promise.reject(new Exceptions_1.Exceptions.InvalidStateError(this.status));
        }
        this.status = Enums_1.SessionStatus.STATUS_ANSWERED;
        clearTimeout(this.timers.userNoAnswerTimer); // Ported
        return this.generateResponseOfferAnswer(options)
            .then(function (body) { return _this.incomingRequest.accept({ statusCode: 200, body: body }); });
    };
    /**
     * A version of `progress` which resolves when the provisional response is sent.
     * @param options Options bucket.
     * @throws {ClosedSessionDescriptionHandlerError} The session description handler closed before method completed.
     * @throws {TransactionStateError} The transaction state does not allow for `progress()` to be called.
     *                                 Note that the transaction state can change while this call is in progress.
     */
    InviteServerContext.prototype._progress = function (options) {
        if (options === void 0) { options = {}; }
        // Ported
        var statusCode = options.statusCode || 180;
        var reasonPhrase = options.reasonPhrase;
        var extraHeaders = (options.extraHeaders || []).slice();
        var body = options.body ? core_1.fromBodyLegacy(options.body) : undefined;
        // The 183 (Session Progress) response is used to convey information
        // about the progress of the call that is not otherwise classified.  The
        // Reason-Phrase, header fields, or message body MAY be used to convey
        // more details about the call progress.
        // https://tools.ietf.org/html/rfc3261#section-21.1.5
        // It is the de facto industry standard to utilize 183 with SDP to provide "early media".
        // While it is unlikely someone would want to send a 183 without SDP, so it should be an option.
        if (statusCode === 183 && !body) {
            return this._progressWithSDP(options);
        }
        try {
            var progressResponse = this.incomingRequest.progress({ statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body });
            this.emit("progress", progressResponse.message, reasonPhrase); // Ported
            this.session = progressResponse.session;
            return Promise.resolve(progressResponse);
        }
        catch (error) {
            return Promise.reject(error);
        }
    };
    /**
     * A version of `progress` which resolves when the provisional response with sdp is sent.
     * @param options Options bucket.
     * @throws {ClosedSessionDescriptionHandlerError} The session description handler closed before method completed.
     * @throws {TransactionStateError} The transaction state does not allow for `progress()` to be called.
     *                                 Note that the transaction state can change while this call is in progress.
     */
    InviteServerContext.prototype._progressWithSDP = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        var statusCode = options.statusCode || 183;
        var reasonPhrase = options.reasonPhrase;
        var extraHeaders = (options.extraHeaders || []).slice();
        // Get an offer/answer and send a reply.
        return this.generateResponseOfferAnswer(options)
            .then(function (body) { return _this.incomingRequest.progress({ statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body }); })
            .then(function (progressResponse) {
            _this.emit("progress", progressResponse.message, reasonPhrase); // Ported
            _this.session = progressResponse.session;
            return progressResponse;
        });
    };
    /**
     * A version of `progress` which resolves when the reliable provisional response is sent.
     * @param options Options bucket.
     * @throws {ClosedSessionDescriptionHandlerError} The session description handler closed before method completed.
     * @throws {TransactionStateError} The transaction state does not allow for `progress()` to be called.
     *                                 Note that the transaction state can change while this call is in progress.
     */
    InviteServerContext.prototype._reliableProgress = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        var statusCode = options.statusCode || 183;
        var reasonPhrase = options.reasonPhrase;
        var extraHeaders = (options.extraHeaders || []).slice();
        extraHeaders.push("Require: 100rel");
        extraHeaders.push("RSeq: " + Math.floor(Math.random() * 10000));
        // Get an offer/answer and send a reply.
        return this.generateResponseOfferAnswer(options)
            .then(function (body) { return _this.incomingRequest.progress({ statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body }); })
            .then(function (progressResponse) {
            _this.emit("progress", progressResponse.message, reasonPhrase); // Ported
            _this.session = progressResponse.session;
            return progressResponse;
        });
    };
    /**
     * A version of `progress` which resolves when the reliable provisional response is acknowledged.
     * @param options Options bucket.
     * @throws {ClosedSessionDescriptionHandlerError} The session description handler closed before method completed.
     * @throws {TransactionStateError} The transaction state does not allow for `progress()` to be called.
     *                                 Note that the transaction state can change while this call is in progress.
     */
    InviteServerContext.prototype._reliableProgressWaitForPrack = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        var statusCode = options.statusCode || 183;
        var reasonPhrase = options.reasonPhrase;
        var extraHeaders = (options.extraHeaders || []).slice();
        extraHeaders.push("Require: 100rel");
        extraHeaders.push("RSeq: " + this.rseq++);
        var body;
        // Ported - set status.
        this.status = Enums_1.SessionStatus.STATUS_WAITING_FOR_PRACK;
        return new Promise(function (resolve, reject) {
            var waitingForPrack = true;
            return _this.generateResponseOfferAnswer(options)
                .then(function (offerAnswer) {
                body = offerAnswer;
                return _this.incomingRequest.progress({ statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body });
            })
                .then(function (progressResponse) {
                _this.emit("progress", progressResponse.message, reasonPhrase); // Ported
                _this.session = progressResponse.session;
                var prackRequest;
                var prackResponse;
                progressResponse.session.delegate = {
                    onPrack: function (request) {
                        prackRequest = request;
                        clearTimeout(prackWaitTimeoutTimer);
                        clearTimeout(rel1xxRetransmissionTimer);
                        if (!waitingForPrack) {
                            return;
                        }
                        waitingForPrack = false;
                        _this.handlePrackOfferAnswer(prackRequest, options)
                            .then(function (prackResponseBody) {
                            try {
                                prackResponse = prackRequest.accept({ statusCode: 200, body: prackResponseBody });
                                // Ported - set status.
                                if (_this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_PRACK) {
                                    _this.status = Enums_1.SessionStatus.STATUS_WAITING_FOR_ANSWER;
                                }
                                _this.prackArrived();
                                resolve({ prackRequest: prackRequest, prackResponse: prackResponse, progressResponse: progressResponse });
                            }
                            catch (error) {
                                reject(error);
                            }
                        });
                    }
                };
                // https://tools.ietf.org/html/rfc3262#section-3
                var prackWaitTimeout = function () {
                    if (!waitingForPrack) {
                        return;
                    }
                    waitingForPrack = false;
                    _this.logger.warn("No PRACK received, rejecting INVITE.");
                    clearTimeout(rel1xxRetransmissionTimer);
                    try {
                        _this.incomingRequest.reject({ statusCode: 504 });
                        _this.terminated(undefined, Constants_1.C.causes.NO_PRACK);
                        reject(new Exceptions_1.Exceptions.TerminatedSessionError());
                    }
                    catch (error) {
                        reject(error);
                    }
                };
                var prackWaitTimeoutTimer = setTimeout(prackWaitTimeout, core_1.Timers.T1 * 64);
                // https://tools.ietf.org/html/rfc3262#section-3
                var rel1xxRetransmission = function () {
                    try {
                        _this.incomingRequest.progress({ statusCode: statusCode, reasonPhrase: reasonPhrase, extraHeaders: extraHeaders, body: body });
                    }
                    catch (error) {
                        waitingForPrack = false;
                        reject(error);
                        return;
                    }
                    rel1xxRetransmissionTimer = setTimeout(rel1xxRetransmission, timeout *= 2);
                };
                var timeout = core_1.Timers.T1;
                var rel1xxRetransmissionTimer = setTimeout(rel1xxRetransmission, timeout);
            });
        });
    };
    /**
     * Callback for when ACK for a 2xx response is never received.
     * @param session Session the ACK never arrived for
     */
    InviteServerContext.prototype.onAckTimeout = function () {
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK) {
            this.logger.log("no ACK received for an extended period of time, terminating the call");
            if (!this.session) {
                throw new Error("Session undefined.");
            }
            this.session.bye();
            this.terminated(undefined, Constants_1.C.causes.NO_ACK);
        }
    };
    /**
     * FIXME: TODO: The current library interface presents async methods without a
     * proper async error handling mechanism. Arguably a promise based interface
     * would be an improvement over the pattern of returning `this`. The approach has
     * been generally along the lines of log a error and terminate.
     */
    InviteServerContext.prototype.onContextError = function (error) {
        var statusCode = 480;
        if (error instanceof core_1.Exception) { // There might be interest in catching these Exceptions.
            if (error instanceof Exceptions_1.Exceptions.SessionDescriptionHandlerError) {
                this.logger.error(error.message);
                if (error.error) {
                    this.logger.error(error.error);
                }
            }
            else if (error instanceof Exceptions_1.Exceptions.TerminatedSessionError) {
                // PRACK never arrived, so we timed out waiting for it.
                this.logger.warn("Incoming session terminated while waiting for PRACK.");
            }
            else if (error instanceof Exceptions_1.Exceptions.UnsupportedSessionDescriptionContentTypeError) {
                statusCode = 415;
            }
            else if (error instanceof core_1.Exception) {
                this.logger.error(error.message);
            }
        }
        else if (error instanceof Error) { // Other Errors hould go uncaught.
            this.logger.error(error.message);
        }
        else {
            // We don't actually know what a session description handler implementation might throw
            // our way, so as a last resort, just assume we are getting an "any" and log it.
            this.logger.error("An error occurred in the session description handler.");
            this.logger.error(error);
        }
        try {
            this.incomingRequest.reject({ statusCode: statusCode }); // "Temporarily Unavailable"
            this.failed(this.incomingRequest.message, error.message);
            this.terminated(this.incomingRequest.message, error.message);
        }
        catch (error) {
            return;
        }
    };
    InviteServerContext.prototype.prackArrived = function () {
        if (this.waitingForPrackResolve) {
            this.waitingForPrackResolve();
        }
        this.waitingForPrackPromise = undefined;
        this.waitingForPrackResolve = undefined;
        this.waitingForPrackReject = undefined;
    };
    InviteServerContext.prototype.prackNeverArrived = function () {
        if (this.waitingForPrackReject) {
            this.waitingForPrackReject(new Exceptions_1.Exceptions.TerminatedSessionError());
        }
        this.waitingForPrackPromise = undefined;
        this.waitingForPrackResolve = undefined;
        this.waitingForPrackReject = undefined;
    };
    /**
     * @throws {Exceptions.TerminatedSessionError} The session terminated before being accepted (i.e. cancel arrived).
     */
    InviteServerContext.prototype.waitForArrivalOfPrack = function () {
        var _this = this;
        if (this.waitingForPrackPromise) {
            throw new Error("Already waiting for PRACK");
        }
        this.waitingForPrackPromise = new Promise(function (resolve, reject) {
            _this.waitingForPrackResolve = resolve;
            _this.waitingForPrackReject = reject;
        });
        return this.waitingForPrackPromise;
    };
    InviteServerContext.prototype.getOffer = function (options) {
        this.hasOffer = true;
        var sdh = this.getSessionDescriptionHandler();
        return sdh
            .getDescription(options.sessionDescriptionHandlerOptions, options.modifiers)
            .then(function (bodyObj) { return Utils_1.Utils.fromBodyObj(bodyObj); });
    };
    InviteServerContext.prototype.setAnswer = function (answer, options) {
        this.hasAnswer = true;
        var sdh = this.getSessionDescriptionHandler();
        if (!sdh.hasDescription(answer.contentType)) {
            return Promise.reject(new Exceptions_1.Exceptions.UnsupportedSessionDescriptionContentTypeError());
        }
        return sdh
            .setDescription(answer.content, options.sessionDescriptionHandlerOptions, options.modifiers);
    };
    InviteServerContext.prototype.setOfferAndGetAnswer = function (offer, options) {
        this.hasOffer = true;
        this.hasAnswer = true;
        var sdh = this.getSessionDescriptionHandler();
        if (!sdh.hasDescription(offer.contentType)) {
            return Promise.reject(new Exceptions_1.Exceptions.UnsupportedSessionDescriptionContentTypeError());
        }
        return sdh
            .setDescription(offer.content, options.sessionDescriptionHandlerOptions, options.modifiers)
            .then(function () { return sdh.getDescription(options.sessionDescriptionHandlerOptions, options.modifiers); })
            .then(function (bodyObj) { return Utils_1.Utils.fromBodyObj(bodyObj); });
    };
    InviteServerContext.prototype.getSessionDescriptionHandler = function () {
        // Create our session description handler if not already done so...
        var sdh = this.sessionDescriptionHandler = this.setupSessionDescriptionHandler();
        // FIXME: Ported - this can get emitted multiple times even when only created once... don't we care?
        this.emit("SessionDescriptionHandler-created", this.sessionDescriptionHandler);
        // Return.
        return sdh;
    };
    return InviteServerContext;
}(Session));
exports.InviteServerContext = InviteServerContext;
// tslint:disable-next-line:max-classes-per-file
var InviteClientContext = /** @class */ (function (_super) {
    tslib_1.__extends(InviteClientContext, _super);
    function InviteClientContext(ua, target, options, modifiers) {
        if (options === void 0) { options = {}; }
        if (modifiers === void 0) { modifiers = []; }
        var _this = this;
        if (!ua.configuration.sessionDescriptionHandlerFactory) {
            ua.logger.warn("Can't build ISC without SDH Factory");
            throw new Error("ICC Constructor Failed");
        }
        options.params = options.params || {};
        var anonymous = options.anonymous || false;
        var fromTag = Utils_1.Utils.newTag();
        options.params.fromTag = fromTag;
        /* Do not add ;ob in initial forming dialog requests if the registration over
        *  the current connection got a GRUU URI.
        */
        var contact = ua.contact.toString({
            anonymous: anonymous,
            outbound: anonymous ? !ua.contact.tempGruu : !ua.contact.pubGruu
        });
        var extraHeaders = (options.extraHeaders || []).slice();
        if (anonymous && ua.configuration.uri) {
            options.params.fromDisplayName = "Anonymous";
            options.params.fromUri = "sip:anonymous@anonymous.invalid";
            extraHeaders.push("P-Preferred-Identity: " + ua.configuration.uri.toString());
            extraHeaders.push("Privacy: id");
        }
        extraHeaders.push("Contact: " + contact);
        // this is UA.C.ALLOWED_METHODS, removed to get around circular dependency
        extraHeaders.push("Allow: " + [
            "ACK",
            "CANCEL",
            "INVITE",
            "MESSAGE",
            "BYE",
            "OPTIONS",
            "INFO",
            "NOTIFY",
            "REFER"
        ].toString());
        if (ua.configuration.rel100 === Constants_1.C.supported.REQUIRED) {
            extraHeaders.push("Require: 100rel");
        }
        if (ua.configuration.replaces === Constants_1.C.supported.REQUIRED) {
            extraHeaders.push("Require: replaces");
        }
        options.extraHeaders = extraHeaders;
        _this = _super.call(this, ua.configuration.sessionDescriptionHandlerFactory) || this;
        ClientContext_1.ClientContext.initializer(_this, ua, Constants_1.C.INVITE, target, options);
        _this.earlyMediaSessionDescriptionHandlers = new Map();
        _this.type = Enums_1.TypeStrings.InviteClientContext;
        _this.passedOptions = options; // Save for later to use with refer
        _this.sessionDescriptionHandlerOptions = options.sessionDescriptionHandlerOptions || {};
        _this.modifiers = modifiers;
        _this.inviteWithoutSdp = options.inviteWithoutSdp || false;
        // Set anonymous property
        _this.anonymous = options.anonymous || false;
        // Custom data to be sent either in INVITE or in ACK
        _this.renderbody = options.renderbody || undefined;
        _this.rendertype = options.rendertype || "text/plain";
        // Session parameter initialization
        _this.fromTag = fromTag;
        _this.contact = contact;
        // Check Session Status
        if (_this.status !== Enums_1.SessionStatus.STATUS_NULL) {
            throw new Exceptions_1.Exceptions.InvalidStateError(_this.status);
        }
        // OutgoingSession specific parameters
        _this.isCanceled = false;
        _this.received100 = false;
        _this.method = Constants_1.C.INVITE;
        _this.logger = ua.getLogger("sip.inviteclientcontext");
        ua.applicants[_this.toString()] = _this;
        _this.id = _this.request.callId + _this.fromTag;
        _this.onInfo = options.onInfo;
        _this.errorListener = _this.onTransportError.bind(_this);
        if (ua.transport) {
            ua.transport.on("transportError", _this.errorListener);
        }
        return _this;
    }
    InviteClientContext.prototype.receiveResponse = function (response) {
        throw new Error("Unimplemented.");
    };
    // hack for getting around ClientContext interface
    InviteClientContext.prototype.send = function () {
        this.sendInvite();
        return this;
    };
    InviteClientContext.prototype.invite = function () {
        var _this = this;
        // Save the session into the ua sessions collection.
        // Note: placing in constructor breaks call to request.cancel on close... User does not need this anyway
        this.ua.sessions[this.id] = this;
        // This should allow the function to return so that listeners can be set up for these events
        Promise.resolve().then(function () {
            // FIXME: There is a race condition where cancel (or terminate) can be called synchronously after invite.
            if (_this.isCanceled || _this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                return;
            }
            if (_this.inviteWithoutSdp) {
                // just send an invite with no sdp...
                if (_this.renderbody && _this.rendertype) {
                    _this.request.body = {
                        body: _this.renderbody,
                        contentType: _this.rendertype
                    };
                }
                _this.status = Enums_1.SessionStatus.STATUS_INVITE_SENT;
                _this.send();
            }
            else {
                // Initialize Media Session
                _this.sessionDescriptionHandler = _this.sessionDescriptionHandlerFactory(_this, _this.ua.configuration.sessionDescriptionHandlerFactoryOptions || {});
                _this.emit("SessionDescriptionHandler-created", _this.sessionDescriptionHandler);
                _this.sessionDescriptionHandler.getDescription(_this.sessionDescriptionHandlerOptions, _this.modifiers)
                    .then(function (description) {
                    // FIXME: There is a race condition where cancel (or terminate) can be called (a)synchronously after invite.
                    if (_this.isCanceled || _this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                        return;
                    }
                    _this.hasOffer = true;
                    _this.request.body = description;
                    _this.status = Enums_1.SessionStatus.STATUS_INVITE_SENT;
                    _this.send();
                }, function (err) {
                    if (err.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                        _this.logger.log(err.message);
                        if (err.error) {
                            _this.logger.log(err.error);
                        }
                    }
                    if (_this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                        return;
                    }
                    _this.failed(undefined, Constants_1.C.causes.WEBRTC_ERROR);
                    _this.terminated(undefined, Constants_1.C.causes.WEBRTC_ERROR);
                });
            }
        });
        return this;
    };
    InviteClientContext.prototype.cancel = function (options) {
        if (options === void 0) { options = {}; }
        // Check Session Status
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED || this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.status);
        }
        if (this.isCanceled) {
            throw new Exceptions_1.Exceptions.InvalidStateError(Enums_1.SessionStatus.STATUS_CANCELED);
        }
        this.isCanceled = true;
        this.logger.log("Canceling session");
        var cancelReason = Utils_1.Utils.getCancelReason(options.statusCode, options.reasonPhrase);
        options.extraHeaders = (options.extraHeaders || []).slice();
        if (this.outgoingInviteRequest) {
            this.logger.warn("Canceling session before it was created");
            this.outgoingInviteRequest.cancel(cancelReason, options);
        }
        return this.canceled();
    };
    InviteClientContext.prototype.terminate = function (options) {
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            return this;
        }
        if (this.status === Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK || this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
            this.bye(options);
        }
        else {
            this.cancel(options);
        }
        return this;
    };
    /**
     * 13.2.1 Creating the Initial INVITE
     *
     * Since the initial INVITE represents a request outside of a dialog,
     * its construction follows the procedures of Section 8.1.1.  Additional
     * processing is required for the specific case of INVITE.
     *
     * An Allow header field (Section 20.5) SHOULD be present in the INVITE.
     * It indicates what methods can be invoked within a dialog, on the UA
     * sending the INVITE, for the duration of the dialog.  For example, a
     * UA capable of receiving INFO requests within a dialog [34] SHOULD
     * include an Allow header field listing the INFO method.
     *
     * A Supported header field (Section 20.37) SHOULD be present in the
     * INVITE.  It enumerates all the extensions understood by the UAC.
     *
     * An Accept (Section 20.1) header field MAY be present in the INVITE.
     * It indicates which Content-Types are acceptable to the UA, in both
     * the response received by it, and in any subsequent requests sent to
     * it within dialogs established by the INVITE.  The Accept header field
     * is especially useful for indicating support of various session
     * description formats.
     *
     * The UAC MAY add an Expires header field (Section 20.19) to limit the
     * validity of the invitation.  If the time indicated in the Expires
     * header field is reached and no final answer for the INVITE has been
     * received, the UAC core SHOULD generate a CANCEL request for the
     * INVITE, as per Section 9.
     *
     * A UAC MAY also find it useful to add, among others, Subject (Section
     * 20.36), Organization (Section 20.25) and User-Agent (Section 20.41)
     * header fields.  They all contain information related to the INVITE.
     *
     * The UAC MAY choose to add a message body to the INVITE.  Section
     * 8.1.1.10 deals with how to construct the header fields -- Content-
     * Type among others -- needed to describe the message body.
     *
     * https://tools.ietf.org/html/rfc3261#section-13.2.1
     */
    InviteClientContext.prototype.sendInvite = function () {
        //    There are special rules for message bodies that contain a session
        //    description - their corresponding Content-Disposition is "session".
        //    SIP uses an offer/answer model where one UA sends a session
        //    description, called the offer, which contains a proposed description
        //    of the session.  The offer indicates the desired communications means
        //    (audio, video, games), parameters of those means (such as codec
        //    types) and addresses for receiving media from the answerer.  The
        //    other UA responds with another session description, called the
        //    answer, which indicates which communications means are accepted, the
        //    parameters that apply to those means, and addresses for receiving
        //    media from the offerer. An offer/answer exchange is within the
        //    context of a dialog, so that if a SIP INVITE results in multiple
        //    dialogs, each is a separate offer/answer exchange.  The offer/answer
        //    model defines restrictions on when offers and answers can be made
        //    (for example, you cannot make a new offer while one is in progress).
        //    This results in restrictions on where the offers and answers can
        //    appear in SIP messages.  In this specification, offers and answers
        //    can only appear in INVITE requests and responses, and ACK.  The usage
        //    of offers and answers is further restricted.  For the initial INVITE
        //    transaction, the rules are:
        //
        //       o  The initial offer MUST be in either an INVITE or, if not there,
        //          in the first reliable non-failure message from the UAS back to
        //          the UAC.  In this specification, that is the final 2xx
        //          response.
        //
        //       o  If the initial offer is in an INVITE, the answer MUST be in a
        //          reliable non-failure message from UAS back to UAC which is
        //          correlated to that INVITE.  For this specification, that is
        //          only the final 2xx response to that INVITE.  That same exact
        //          answer MAY also be placed in any provisional responses sent
        //          prior to the answer.  The UAC MUST treat the first session
        //          description it receives as the answer, and MUST ignore any
        //          session descriptions in subsequent responses to the initial
        //          INVITE.
        //
        //       o  If the initial offer is in the first reliable non-failure
        //          message from the UAS back to UAC, the answer MUST be in the
        //          acknowledgement for that message (in this specification, ACK
        //          for a 2xx response).
        //
        //       o  After having sent or received an answer to the first offer, the
        //          UAC MAY generate subsequent offers in requests based on rules
        //          specified for that method, but only if it has received answers
        //          to any previous offers, and has not sent any offers to which it
        //          hasn't gotten an answer.
        //
        //       o  Once the UAS has sent or received an answer to the initial
        //          offer, it MUST NOT generate subsequent offers in any responses
        //          to the initial INVITE.  This means that a UAS based on this
        //          specification alone can never generate subsequent offers until
        //          completion of the initial transaction.
        //
        // https://tools.ietf.org/html/rfc3261#section-13.2.1
        var _this = this;
        // 5 The Offer/Answer Model and PRACK
        //
        //    RFC 3261 describes guidelines for the sets of messages in which
        //    offers and answers [3] can appear.  Based on those guidelines, this
        //    extension provides additional opportunities for offer/answer
        //    exchanges.
        //    If the INVITE contained an offer, the UAS MAY generate an answer in a
        //    reliable provisional response (assuming these are supported by the
        //    UAC).  That results in the establishment of the session before
        //    completion of the call.  Similarly, if a reliable provisional
        //    response is the first reliable message sent back to the UAC, and the
        //    INVITE did not contain an offer, one MUST appear in that reliable
        //    provisional response.
        //    If the UAC receives a reliable provisional response with an offer
        //    (this would occur if the UAC sent an INVITE without an offer, in
        //    which case the first reliable provisional response will contain the
        //    offer), it MUST generate an answer in the PRACK.  If the UAC receives
        //    a reliable provisional response with an answer, it MAY generate an
        //    additional offer in the PRACK.  If the UAS receives a PRACK with an
        //    offer, it MUST place the answer in the 2xx to the PRACK.
        //    Once an answer has been sent or received, the UA SHOULD establish the
        //    session based on the parameters of the offer and answer, even if the
        //    original INVITE itself has not been responded to.
        //    If the UAS had placed a session description in any reliable
        //    provisional response that is unacknowledged when the INVITE is
        //    accepted, the UAS MUST delay sending the 2xx until the provisional
        //    response is acknowledged.  Otherwise, the reliability of the 1xx
        //    cannot be guaranteed, and reliability is needed for proper operation
        //    of the offer/answer exchange.
        //    All user agents that support this extension MUST support all
        //    offer/answer exchanges that are possible based on the rules in
        //    Section 13.2 of RFC 3261, based on the existence of INVITE and PRACK
        //    as requests, and 2xx and reliable 1xx as non-failure reliable
        //    responses.
        //
        // https://tools.ietf.org/html/rfc3262#section-5
        ////
        // The Offer/Answer Model Implementation
        //
        // The offer/answer model is straight forward, but one MUST READ the specifications...
        //
        // 13.2.1 Creating the Initial INVITE (paragraph 8 in particular)
        // https://tools.ietf.org/html/rfc3261#section-13.2.1
        //
        // 5 The Offer/Answer Model and PRACK
        // https://tools.ietf.org/html/rfc3262#section-5
        //
        // Session Initiation Protocol (SIP) Usage of the Offer/Answer Model
        // https://tools.ietf.org/html/rfc6337
        //
        // *** IMPORTANT IMPLEMENTATION CHOICES ***
        //
        // TLDR...
        //
        //  1) Only one offer/answer exchange permitted during initial INVITE.
        //  2) No "early media" if the initial offer is in an INVITE.
        //
        //
        // 1) Initial Offer/Answer Restriction.
        //
        // Our implementation replaces the following bullet point...
        //
        // o  After having sent or received an answer to the first offer, the
        //    UAC MAY generate subsequent offers in requests based on rules
        //    specified for that method, but only if it has received answers
        //    to any previous offers, and has not sent any offers to which it
        //    hasn't gotten an answer.
        // https://tools.ietf.org/html/rfc3261#section-13.2.1
        //
        // ...with...
        //
        // o  After having sent or received an answer to the first offer, the
        //    UAC MUST NOT generate subsequent offers in requests based on rules
        //    specified for that method.
        //
        // ...which in combination with this bullet point...
        //
        // o  Once the UAS has sent or received an answer to the initial
        //    offer, it MUST NOT generate subsequent offers in any responses
        //    to the initial INVITE.  This means that a UAS based on this
        //    specification alone can never generate subsequent offers until
        //    completion of the initial transaction.
        // https://tools.ietf.org/html/rfc3261#section-13.2.1
        //
        // ...ensures that EXACTLY ONE offer/answer exchange will occur
        // during an initial out of dialog INVITE request made by our UAC.
        //
        //
        // 2) Early Media Restriction.
        //
        // While our implementation adheres to the following bullet point...
        //
        // o  If the initial offer is in an INVITE, the answer MUST be in a
        //    reliable non-failure message from UAS back to UAC which is
        //    correlated to that INVITE.  For this specification, that is
        //    only the final 2xx response to that INVITE.  That same exact
        //    answer MAY also be placed in any provisional responses sent
        //    prior to the answer.  The UAC MUST treat the first session
        //    description it receives as the answer, and MUST ignore any
        //    session descriptions in subsequent responses to the initial
        //    INVITE.
        // https://tools.ietf.org/html/rfc3261#section-13.2.1
        //
        // We have made the following implementation decision with regard to early media...
        //
        // o  If the initial offer is in the INVITE, the answer from the
        //    UAS back to the UAC will establish a media session only
        //    only after the final 2xx response to that INVITE is received.
        //
        // The reason for this decision is rooted in a restriction currently
        // inherent in WebRTC. Specifically, while a SIP INVITE request with an
        // initial offer may fork resulting in more than one provisional answer,
        // there is currently no easy/good way to to "fork" an offer generated
        // by a peer connection. In particular, a WebRTC offer currently may only
        // be matched with one answer and we have no good way to know which
        // "provisional answer" is going to be the "final answer". So we have
        // decided to punt and not create any "early media" sessions in this case.
        //
        // The upshot is that if you want "early media", you must not put the
        // initial offer in the INVITE. Instead, force the UAS to provide the
        // initial offer by sending an INVITE without an offer. In the WebRTC
        // case this allows us to create a unique peer connection with a unique
        // answer for every provisional offer with "early media" on all of them.
        ////
        ////
        // ROADMAP: The Offer/Answer Model Implementation
        //
        // The "no early media if offer in INVITE" implementation is not a
        // welcome one. The masses want it. The want it and they want it
        // to work for WebRTC (so they want to have their cake and eat too).
        //
        // So while we currently cannot make the offer in INVITE+forking+webrtc
        // case work, we decided to do the following...
        //
        // 1) modify SDH Factory to provide an initial offer without giving us the SDH, and then...
        // 2) stick that offer in the initial INVITE, and when 183 with initial answer is received...
        // 3) ask SDH Factory if it supports "earlyRemoteAnswer"
        //   a) if true, ask SDH Factory to createSDH(localOffer).then((sdh) => sdh.setDescription(remoteAnswer)
        //   b) if false, defer getting a SDH until 2xx response is received
        //
        // Our supplied WebRTC SDH will default to behavior 3b which works in forking environment (without)
        // early media if initial offer is in the INVITE). We will, however, provide an "inviteWillNotFork"
        // option which if set to "true" will have our supplied WebRTC SDH behave in the 3a manner.
        // That will result in
        //  - early media working with initial offer in the INVITE, and...
        //  - if the INVITE forks, the session terminating with an ERROR that reads like
        //    "You set 'inviteWillNotFork' to true but the INVITE forked. You can't eat your cake, and have it too."
        //  - furthermore, we accept that users will report that error to us as "bug" regardless
        //
        // So, SDH Factory is going to end up with a new interface along the lines of...
        //
        // interface SessionDescriptionHandlerFactory {
        //   makeLocalOffer(): Promise<ContentTypeAndBody>;
        //   makeSessionDescriptionHandler(
        //     initialOffer: ContentTypeAndBody, offerType: "local" | "remote"
        //   ): Promise<SessionDescriptionHandler>;
        //   supportsEarlyRemoteAnswer: boolean;
        //   supportsContentType(contentType: string): boolean;
        //   getDescription(description: ContentTypeAndBody): Promise<ContentTypeAndBody>
        //   setDescription(description: ContentTypeAndBody): Promise<void>
        // }
        //
        // We should be able to get rid of all the hasOffer/hasAnswer tracking code and otherwise code
        // it up to the same interaction with the SDH Factory and SDH regardless of signaling scenario.
        ////
        // Send the INVITE request.
        this.outgoingInviteRequest = this.ua.userAgentCore.invite(this.request, {
            onAccept: function (inviteResponse) { return _this.onAccept(inviteResponse); },
            onProgress: function (inviteResponse) { return _this.onProgress(inviteResponse); },
            onRedirect: function (inviteResponse) { return _this.onRedirect(inviteResponse); },
            onReject: function (inviteResponse) { return _this.onReject(inviteResponse); },
            onTrying: function (inviteResponse) { return _this.onTrying(inviteResponse); }
        });
    };
    InviteClientContext.prototype.ackAndBye = function (inviteResponse, session, statusCode, reasonPhrase) {
        if (!this.ua.userAgentCore) {
            throw new Error("Method requires user agent core.");
        }
        var extraHeaders = [];
        if (statusCode) {
            extraHeaders.push("Reason: " + Utils_1.Utils.getReasonHeaderValue(statusCode, reasonPhrase));
        }
        var outgoingAckRequest = inviteResponse.ack();
        this.emit("ack", outgoingAckRequest.message);
        var outgoingByeRequest = session.bye(undefined, { extraHeaders: extraHeaders });
        this.emit("bye", outgoingByeRequest.message);
    };
    InviteClientContext.prototype.disposeEarlyMedia = function () {
        if (!this.earlyMediaSessionDescriptionHandlers) {
            throw new Error("Early media session description handlers undefined.");
        }
        this.earlyMediaSessionDescriptionHandlers.forEach(function (sessionDescriptionHandler) {
            sessionDescriptionHandler.close();
        });
    };
    /**
     * Handle final response to initial INVITE.
     * @param inviteResponse 2xx response.
     */
    InviteClientContext.prototype.onAccept = function (inviteResponse) {
        var _this = this;
        if (!this.earlyMediaSessionDescriptionHandlers) {
            throw new Error("Early media session description handlers undefined.");
        }
        var response = inviteResponse.message;
        var session = inviteResponse.session;
        // Our transaction layer is "non-standard" in that it will only
        // pass us a 2xx response once per branch, so there is no need to
        // worry about dealing with 2xx retransmissions. However, we can
        // and do still get 2xx responses for multiple branches (when an
        // INVITE is forked) which may create multiple confirmed dialogs.
        // Herein we are acking and sending a bye to any confirmed dialogs
        // which arrive beyond the first one. This is the desired behavior
        // for most applications (but certainly not all).
        // If we already received a confirmed dialog, ack & bye this session.
        if (this.session) {
            this.ackAndBye(inviteResponse, session);
            return;
        }
        // If the user requested cancellation, ack & bye this session.
        if (this.isCanceled) {
            this.ackAndBye(inviteResponse, session);
            this.emit("bye", this.request); // FIXME: Ported this odd second "bye" emit
            return;
        }
        // Ported behavior.
        if (response.hasHeader("P-Asserted-Identity")) {
            this.assertedIdentity = core_1.Grammar.nameAddrHeaderParse(response.getHeader("P-Asserted-Identity"));
        }
        // We have a confirmed dialog.
        this.session = session;
        this.session.delegate = {
            onAck: function (ackRequest) { return _this.onAck(ackRequest); },
            onBye: function (byeRequest) { return _this.receiveRequest(byeRequest); },
            onInfo: function (infoRequest) { return _this.receiveRequest(infoRequest); },
            onInvite: function (inviteRequest) { return _this.receiveRequest(inviteRequest); },
            onNotify: function (notifyRequest) { return _this.receiveRequest(notifyRequest); },
            onPrack: function (prackRequest) { return _this.receiveRequest(prackRequest); },
            onRefer: function (referRequest) { return _this.receiveRequest(referRequest); }
        };
        switch (session.signalingState) {
            case core_1.SignalingState.Initial:
                // INVITE without Offer, so MUST have Offer at this point, so invalid state.
                this.ackAndBye(inviteResponse, session, 400, "Missing session description");
                this.failed(response, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                break;
            case core_1.SignalingState.HaveLocalOffer:
                // INVITE with Offer, so MUST have Answer at this point, so invalid state.
                this.ackAndBye(inviteResponse, session, 400, "Missing session description");
                this.failed(response, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                break;
            case core_1.SignalingState.HaveRemoteOffer:
                // INVITE without Offer, received offer in 2xx, so MUST send Answer in ACK.
                var sdh_1 = this.sessionDescriptionHandlerFactory(this, this.ua.configuration.sessionDescriptionHandlerFactoryOptions || {});
                this.sessionDescriptionHandler = sdh_1;
                this.emit("SessionDescriptionHandler-created", this.sessionDescriptionHandler);
                if (!sdh_1.hasDescription(response.getHeader("Content-Type") || "")) {
                    this.ackAndBye(inviteResponse, session, 400, "Missing session description");
                    this.failed(response, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                    break;
                }
                this.hasOffer = true;
                sdh_1
                    .setDescription(response.body, this.sessionDescriptionHandlerOptions, this.modifiers)
                    .then(function () { return sdh_1.getDescription(_this.sessionDescriptionHandlerOptions, _this.modifiers); })
                    .then(function (description) {
                    if (_this.isCanceled || _this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                        return;
                    }
                    _this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                    _this.hasAnswer = true;
                    var body = {
                        contentDisposition: "session", contentType: description.contentType, content: description.body
                    };
                    var ackRequest = inviteResponse.ack({ body: body });
                    _this.emit("ack", ackRequest.message);
                    _this.accepted(response);
                })
                    .catch(function (e) {
                    if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                        _this.logger.warn("invalid description");
                        _this.logger.warn(e.toString());
                        // TODO: This message is inconsistent
                        _this.ackAndBye(inviteResponse, session, 488, "Invalid session description");
                        _this.failed(response, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                    }
                    else {
                        throw e;
                    }
                });
                break;
            case core_1.SignalingState.Stable:
                // This session has completed an initial offer/answer exchange...
                var options_1;
                if (this.renderbody && this.rendertype) {
                    options_1 = { body: { contentDisposition: "render", contentType: this.rendertype, content: this.renderbody } };
                }
                // If INVITE with Offer and we have been waiting till now to apply the answer.
                if (this.hasOffer && !this.hasAnswer) {
                    if (!this.sessionDescriptionHandler) {
                        throw new Error("Session description handler undefined.");
                    }
                    var answer = session.answer;
                    if (!answer) {
                        throw new Error("Answer is undefined.");
                    }
                    this.sessionDescriptionHandler
                        .setDescription(answer.content, this.sessionDescriptionHandlerOptions, this.modifiers)
                        .then(function () {
                        _this.hasAnswer = true;
                        _this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                        var ackRequest = inviteResponse.ack(options_1);
                        _this.emit("ack", ackRequest.message);
                        _this.accepted(response);
                    })
                        .catch(function (error) {
                        _this.logger.error(error);
                        _this.ackAndBye(inviteResponse, session, 488, "Not Acceptable Here");
                        _this.failed(response, Constants_1.C.causes.BAD_MEDIA_DESCRIPTION);
                        // FIME: DON'T EAT UNHANDLED ERRORS!
                    });
                }
                else {
                    // Otherwise INVITE with or without Offer and we have already completed the initial exchange.
                    this.sessionDescriptionHandler = this.earlyMediaSessionDescriptionHandlers.get(session.id);
                    if (!this.sessionDescriptionHandler) {
                        throw new Error("Session description handler undefined.");
                    }
                    this.earlyMediaSessionDescriptionHandlers.delete(session.id);
                    this.hasOffer = true;
                    this.hasAnswer = true;
                    this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                    var ackRequest = inviteResponse.ack();
                    this.emit("ack", ackRequest.message);
                    this.accepted(response);
                }
                break;
            case core_1.SignalingState.Closed:
                // Dialog has terminated.
                break;
            default:
                throw new Error("Unknown session signaling state.");
        }
        this.disposeEarlyMedia();
    };
    /**
     * Handle provisional response to initial INVITE.
     * @param inviteResponse 1xx response.
     */
    InviteClientContext.prototype.onProgress = function (inviteResponse) {
        var _this = this;
        // Ported - User requested cancellation.
        if (this.isCanceled) {
            return;
        }
        if (!this.outgoingInviteRequest) {
            throw new Error("Outgoing INVITE request undefined.");
        }
        if (!this.earlyMediaSessionDescriptionHandlers) {
            throw new Error("Early media session description handlers undefined.");
        }
        var response = inviteResponse.message;
        var session = inviteResponse.session;
        // Ported - Set status.
        this.status = Enums_1.SessionStatus.STATUS_1XX_RECEIVED;
        // Ported - Set assertedIdentity.
        if (response.hasHeader("P-Asserted-Identity")) {
            this.assertedIdentity = core_1.Grammar.nameAddrHeaderParse(response.getHeader("P-Asserted-Identity"));
        }
        // The provisional response MUST establish a dialog if one is not yet created.
        // https://tools.ietf.org/html/rfc3262#section-4
        if (!session) {
            // A response with a to tag MUST create a session (should never get here).
            throw new Error("Session undefined.");
        }
        // If a provisional response is received for an initial request, and
        // that response contains a Require header field containing the option
        // tag 100rel, the response is to be sent reliably.  If the response is
        // a 100 (Trying) (as opposed to 101 to 199), this option tag MUST be
        // ignored, and the procedures below MUST NOT be used.
        // https://tools.ietf.org/html/rfc3262#section-4
        var requireHeader = response.getHeader("require");
        var rseqHeader = response.getHeader("rseq");
        var rseq = requireHeader && requireHeader.includes("100rel") && rseqHeader ? Number(rseqHeader) : undefined;
        var responseReliable = !!rseq;
        var extraHeaders = [];
        if (responseReliable) {
            extraHeaders.push("RAck: " + response.getHeader("rseq") + " " + response.getHeader("cseq"));
        }
        // INVITE without Offer and session still has no offer (and no answer).
        if (session.signalingState === core_1.SignalingState.Initial) {
            // Similarly, if a reliable provisional
            // response is the first reliable message sent back to the UAC, and the
            // INVITE did not contain an offer, one MUST appear in that reliable
            // provisional response.
            // https://tools.ietf.org/html/rfc3262#section-5
            if (responseReliable) {
                this.logger.warn("First reliable provisional response received MUST contain an offer when INVITE does not contain an offer.");
                // FIXME: Known popular UA's currently end up here...
                inviteResponse.prack({ extraHeaders: extraHeaders });
            }
            this.emit("progress", response);
            return;
        }
        // INVITE with Offer and session only has that initial local offer.
        if (session.signalingState === core_1.SignalingState.HaveLocalOffer) {
            if (responseReliable) {
                inviteResponse.prack({ extraHeaders: extraHeaders });
            }
            this.emit("progress", response);
            return;
        }
        // INVITE without Offer and received initial offer in provisional response
        if (session.signalingState === core_1.SignalingState.HaveRemoteOffer) {
            // The initial offer MUST be in either an INVITE or, if not there,
            // in the first reliable non-failure message from the UAS back to
            // the UAC.
            // https://tools.ietf.org/html/rfc3261#section-13.2.1
            // According to Section 13.2.1 of [RFC3261], 'The first reliable
            // non-failure message' must have an offer if there is no offer in the
            // INVITE request.  This means that the User Agent (UA) that receives
            // the INVITE request without an offer must include an offer in the
            // first reliable response with 100rel extension.  If no reliable
            // provisional response has been sent, the User Agent Server (UAS) must
            // include an offer when sending 2xx response.
            // https://tools.ietf.org/html/rfc6337#section-2.2
            if (!responseReliable) {
                this.logger.warn("Non-reliable provisional response MUST NOT contain an initial offer, discarding response.");
                return;
            }
            // If the initial offer is in the first reliable non-failure
            // message from the UAS back to UAC, the answer MUST be in the
            // acknowledgement for that message
            var sdh_2 = this.sessionDescriptionHandlerFactory(this, this.ua.configuration.sessionDescriptionHandlerFactoryOptions || {});
            this.emit("SessionDescriptionHandler-created", sdh_2);
            this.earlyMediaSessionDescriptionHandlers.set(session.id, sdh_2);
            sdh_2
                .setDescription(response.body, this.sessionDescriptionHandlerOptions, this.modifiers)
                .then(function () { return sdh_2.getDescription(_this.sessionDescriptionHandlerOptions, _this.modifiers); })
                .then(function (description) {
                var body = {
                    contentDisposition: "session", contentType: description.contentType, content: description.body
                };
                inviteResponse.prack({ extraHeaders: extraHeaders, body: body });
                _this.status = Enums_1.SessionStatus.STATUS_EARLY_MEDIA;
                _this.emit("progress", response);
            })
                .catch(function (error) {
                if (_this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                    return;
                }
                _this.failed(undefined, Constants_1.C.causes.WEBRTC_ERROR);
                _this.terminated(undefined, Constants_1.C.causes.WEBRTC_ERROR);
            });
            return;
        }
        // This session has completed an initial offer/answer exchange, so...
        // - INVITE with SDP and this provisional response MAY be reliable
        // - INVITE without SDP and this provisional response MAY be reliable
        if (session.signalingState === core_1.SignalingState.Stable) {
            if (responseReliable) {
                inviteResponse.prack({ extraHeaders: extraHeaders });
            }
            // Note: As documented, no early media if offer was in INVITE, so nothing to be done.
            // FIXME: TODO: Add a flag/hack to allow early media in this case. There are people
            //              in non-forking environments (think straight to FreeSWITCH) who want
            //              early media on a 183. Not sure how to actually make it work, basically
            //              something like...
            if (false) {}
            this.emit("progress", response);
            return;
        }
    };
    /**
     * Handle final response to initial INVITE.
     * @param inviteResponse 3xx response.
     */
    InviteClientContext.prototype.onRedirect = function (inviteResponse) {
        this.disposeEarlyMedia();
        var response = inviteResponse.message;
        var statusCode = response.statusCode;
        var cause = Utils_1.Utils.sipErrorCause(statusCode || 0);
        this.rejected(response, cause);
        this.failed(response, cause);
        this.terminated(response, cause);
    };
    /**
     * Handle final response to initial INVITE.
     * @param inviteResponse 4xx, 5xx, or 6xx response.
     */
    InviteClientContext.prototype.onReject = function (inviteResponse) {
        this.disposeEarlyMedia();
        var response = inviteResponse.message;
        var statusCode = response.statusCode;
        var cause = Utils_1.Utils.sipErrorCause(statusCode || 0);
        this.rejected(response, cause);
        this.failed(response, cause);
        this.terminated(response, cause);
    };
    /**
     * Handle final response to initial INVITE.
     * @param inviteResponse 100 response.
     */
    InviteClientContext.prototype.onTrying = function (inviteResponse) {
        this.received100 = true;
        this.emit("progress", inviteResponse.message);
    };
    return InviteClientContext;
}(Session));
exports.InviteClientContext = InviteClientContext;


/***/ }),
/* 91 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var Constants_1 = __webpack_require__(80);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Utils_1 = __webpack_require__(83);
/**
 * @class DTMF
 * @param {SIP.Session} session
 */
var DTMF = /** @class */ (function (_super) {
    tslib_1.__extends(DTMF, _super);
    function DTMF(session, tone, options) {
        if (options === void 0) { options = {}; }
        var _this = _super.call(this) || this;
        _this.C = {
            MIN_DURATION: 70,
            MAX_DURATION: 6000,
            DEFAULT_DURATION: 100,
            MIN_INTER_TONE_GAP: 50,
            DEFAULT_INTER_TONE_GAP: 500
        };
        _this.type = Enums_1.TypeStrings.DTMF;
        if (tone === undefined) {
            throw new TypeError("Not enough arguments");
        }
        _this.logger = session.ua.getLogger("sip.invitecontext.dtmf", session.id);
        _this.owner = session;
        // Check tone type
        if (typeof tone === "string") {
            tone = tone.toUpperCase();
        }
        else if (typeof tone === "number") {
            tone = tone.toString();
        }
        else {
            throw new TypeError("Invalid tone: " + tone);
        }
        // Check tone value
        if (!tone.match(/^[0-9A-D#*]$/)) {
            throw new TypeError("Invalid tone: " + tone);
        }
        else {
            _this.tone = tone;
        }
        var duration = options.duration;
        var interToneGap = options.interToneGap;
        // Check duration
        if (duration && !Utils_1.Utils.isDecimal(duration)) {
            throw new TypeError("Invalid tone duration: " + duration);
        }
        else if (!duration) {
            duration = _this.C.DEFAULT_DURATION;
        }
        else if (duration < _this.C.MIN_DURATION) {
            _this.logger.warn("'duration' value is lower than the minimum allowed, setting it to " +
                _this.C.MIN_DURATION + " milliseconds");
            duration = _this.C.MIN_DURATION;
        }
        else if (duration > _this.C.MAX_DURATION) {
            _this.logger.warn("'duration' value is greater than the maximum allowed, setting it to " +
                _this.C.MAX_DURATION + " milliseconds");
            duration = _this.C.MAX_DURATION;
        }
        else {
            duration = Math.abs(duration);
        }
        _this.duration = duration;
        // Check interToneGap
        if (interToneGap && !Utils_1.Utils.isDecimal(interToneGap)) {
            throw new TypeError("Invalid interToneGap: " + interToneGap);
        }
        else if (!interToneGap) {
            interToneGap = _this.C.DEFAULT_INTER_TONE_GAP;
        }
        else if (interToneGap < _this.C.MIN_INTER_TONE_GAP) {
            _this.logger.warn("'interToneGap' value is lower than the minimum allowed, setting it to " +
                _this.C.MIN_INTER_TONE_GAP + " milliseconds");
            interToneGap = _this.C.MIN_INTER_TONE_GAP;
        }
        else {
            interToneGap = Math.abs(interToneGap);
        }
        _this.interToneGap = interToneGap;
        return _this;
    }
    DTMF.prototype.send = function (options) {
        if (options === void 0) { options = {}; }
        // Check RTCSession Status
        if (this.owner.status !== Enums_1.SessionStatus.STATUS_CONFIRMED &&
            this.owner.status !== Enums_1.SessionStatus.STATUS_WAITING_FOR_ACK) {
            throw new Exceptions_1.Exceptions.InvalidStateError(this.owner.status);
        }
        // Get DTMF options
        var extraHeaders = options.extraHeaders ? options.extraHeaders.slice() : [];
        var body = {
            contentType: "application/dtmf-relay",
            body: "Signal= " + this.tone + "\r\nDuration= " + this.duration
        };
        if (this.owner.session) {
            var request = this.owner.session.info(undefined, {
                extraHeaders: extraHeaders,
                body: Utils_1.Utils.fromBodyObj(body)
            });
            this.owner.emit("dtmf", request.message, this);
            return;
        }
    };
    DTMF.prototype.init_incoming = function (request) {
        request.accept();
        if (!this.tone || !this.duration) {
            this.logger.warn("invalid INFO DTMF received, discarded");
        }
        else {
            this.owner.emit("dtmf", request.message, this);
        }
    };
    DTMF.prototype.receiveResponse = function (response) {
        var statusCode = response && response.statusCode ? response.statusCode : 0;
        switch (true) {
            case /^1[0-9]{2}$/.test(statusCode.toString()):
                // Ignore provisional responses.
                break;
            case /^2[0-9]{2}$/.test(statusCode.toString()):
                this.emit("succeeded", {
                    originator: "remote",
                    response: response
                });
                break;
            default:
                var cause = Utils_1.Utils.sipErrorCause(statusCode);
                this.emit("failed", response, cause);
                break;
        }
    };
    DTMF.prototype.onRequestTimeout = function () {
        this.emit("failed", undefined, Constants_1.C.causes.REQUEST_TIMEOUT);
        this.owner.onRequestTimeout();
    };
    DTMF.prototype.onTransportError = function () {
        this.emit("failed", undefined, Constants_1.C.causes.CONNECTION_ERROR);
        this.owner.onTransportError();
    };
    DTMF.prototype.onDialogError = function (response) {
        this.emit("failed", response, Constants_1.C.causes.DIALOG_ERROR);
        this.owner.onDialogError(response);
    };
    return DTMF;
}(events_1.EventEmitter));
exports.DTMF = DTMF;


/***/ }),
/* 92 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var allowed_methods_1 = __webpack_require__(58);
var Enums_1 = __webpack_require__(82);
var Utils_1 = __webpack_require__(83);
/**
 * While this class is named `Subscription`, it is closer to
 * an implementation of a "subscriber" as defined in RFC 6665
 * "SIP-Specific Event Notifications".
 * https://tools.ietf.org/html/rfc6665
 * @class Class creating a SIP Subscriber.
 */
var Subscription = /** @class */ (function (_super) {
    tslib_1.__extends(Subscription, _super);
    /**
     * Constructor.
     * @param ua User agent.
     * @param target Subscription target.
     * @param event Subscription event.
     * @param options Options bucket.
     */
    function Subscription(ua, target, event, options) {
        if (options === void 0) { options = {}; }
        var _this = _super.call(this) || this;
        _this.data = {};
        _this.method = Constants_1.C.SUBSCRIBE;
        _this.body = undefined;
        // ClientContext interface
        _this.type = Enums_1.TypeStrings.Subscription;
        _this.ua = ua;
        _this.logger = ua.getLogger("sip.subscription");
        if (options.body) {
            _this.body = {
                body: options.body,
                contentType: options.contentType ? options.contentType : "application/sdp"
            };
        }
        // Target URI
        var uri = ua.normalizeTarget(target);
        if (!uri) {
            throw new TypeError("Invalid target: " + target);
        }
        _this.uri = uri;
        // Subscription event
        _this.event = event;
        // Subscription expires
        if (options.expires === undefined) {
            _this.expires = 3600;
        }
        else if (typeof options.expires !== "number") { // pre-typescript type guard
            ua.logger.warn("Option \"expires\" must be a number. Using default of 3600.");
            _this.expires = 3600;
        }
        else {
            _this.expires = options.expires;
        }
        // Subscription extra headers
        _this.extraHeaders = (options.extraHeaders || []).slice();
        // Subscription context.
        _this.context = _this.initContext();
        _this.disposed = false;
        // ClientContext interface
        _this.request = _this.context.message;
        if (!_this.request.from) {
            throw new Error("From undefined.");
        }
        if (!_this.request.to) {
            throw new Error("From undefined.");
        }
        _this.localIdentity = _this.request.from;
        _this.remoteIdentity = _this.request.to;
        // Add to UA's collection
        _this.id = _this.request.callId + _this.request.from.parameters.tag + _this.event;
        _this.ua.subscriptions[_this.id] = _this;
        return _this;
    }
    /**
     * Destructor.
     */
    Subscription.prototype.dispose = function () {
        if (this.disposed) {
            return;
        }
        if (this.retryAfterTimer) {
            clearTimeout(this.retryAfterTimer);
            this.retryAfterTimer = undefined;
        }
        this.context.dispose();
        this.disposed = true;
        // Remove from UA's collection
        delete this.ua.subscriptions[this.id];
    };
    Subscription.prototype.on = function (name, callback) {
        return _super.prototype.on.call(this, name, callback);
    };
    Subscription.prototype.emit = function (event) {
        var args = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            args[_i - 1] = arguments[_i];
        }
        return _super.prototype.emit.apply(this, tslib_1.__spreadArrays([event], args));
    };
    /**
     * Gracefully terminate.
     */
    Subscription.prototype.close = function () {
        if (this.disposed) {
            return;
        }
        this.dispose();
        switch (this.context.state) {
            case core_1.SubscriptionState.Initial:
                this.onTerminated();
                break;
            case core_1.SubscriptionState.NotifyWait:
                this.onTerminated();
                break;
            case core_1.SubscriptionState.Pending:
                this.unsubscribe();
                break;
            case core_1.SubscriptionState.Active:
                this.unsubscribe();
                break;
            case core_1.SubscriptionState.Terminated:
                this.onTerminated();
                break;
            default:
                break;
        }
    };
    /**
     * Send a re-SUBSCRIBE request if there is an "active" subscription.
     */
    Subscription.prototype.refresh = function () {
        var _this = this;
        switch (this.context.state) {
            case core_1.SubscriptionState.Initial:
                break;
            case core_1.SubscriptionState.NotifyWait:
                break;
            case core_1.SubscriptionState.Pending:
                break;
            case core_1.SubscriptionState.Active:
                if (this.subscription) {
                    var request = this.subscription.refresh();
                    request.delegate = {
                        onAccept: (function (response) { return _this.onAccepted(response); }),
                        onRedirect: (function (response) { return _this.onFailed(response); }),
                        onReject: (function (response) { return _this.onFailed(response); }),
                    };
                }
                break;
            case core_1.SubscriptionState.Terminated:
                break;
            default:
                break;
        }
    };
    /**
     * Send an initial SUBSCRIBE request if no subscription.
     * Send a re-SUBSCRIBE request if there is an "active" subscription.
     */
    Subscription.prototype.subscribe = function () {
        var _this = this;
        switch (this.context.state) {
            case core_1.SubscriptionState.Initial:
                this.context.subscribe().then(function (result) {
                    if (result.success) {
                        if (result.success.subscription) {
                            _this.subscription = result.success.subscription;
                            _this.subscription.delegate = {
                                onNotify: function (request) { return _this.onNotify(request); },
                                onRefresh: function (request) { return _this.onRefresh(request); },
                                onTerminated: function () { return _this.close(); }
                            };
                        }
                        _this.onNotify(result.success.request);
                    }
                    else if (result.failure) {
                        _this.onFailed(result.failure.response);
                    }
                });
                break;
            case core_1.SubscriptionState.NotifyWait:
                break;
            case core_1.SubscriptionState.Pending:
                break;
            case core_1.SubscriptionState.Active:
                this.refresh();
                break;
            case core_1.SubscriptionState.Terminated:
                break;
            default:
                break;
        }
        return this;
    };
    /**
     * Send a re-SUBSCRIBE request if there is a "pending" or "active" subscription.
     */
    Subscription.prototype.unsubscribe = function () {
        this.dispose();
        switch (this.context.state) {
            case core_1.SubscriptionState.Initial:
                break;
            case core_1.SubscriptionState.NotifyWait:
                break;
            case core_1.SubscriptionState.Pending:
                if (this.subscription) {
                    this.subscription.unsubscribe();
                    // responses intentionally ignored
                }
                break;
            case core_1.SubscriptionState.Active:
                if (this.subscription) {
                    this.subscription.unsubscribe();
                    // responses intentionally ignored
                }
                break;
            case core_1.SubscriptionState.Terminated:
                break;
            default:
                break;
        }
        this.onTerminated();
    };
    Subscription.prototype.onAccepted = function (response) {
        var statusCode = response.message.statusCode ? response.message.statusCode : 0;
        var cause = Utils_1.Utils.getReasonPhrase(statusCode);
        this.emit("accepted", response.message, cause);
    };
    Subscription.prototype.onFailed = function (response) {
        this.close();
        if (response) {
            var statusCode = response.message.statusCode ? response.message.statusCode : 0;
            var cause = Utils_1.Utils.getReasonPhrase(statusCode);
            this.emit("failed", response.message, cause);
            this.emit("rejected", response.message, cause);
        }
    };
    Subscription.prototype.onNotify = function (request) {
        var _this = this;
        request.accept(); // Send 200 response.
        this.emit("notify", { request: request.message });
        // If we've set state to done, no further processing should take place
        // and we are only interested in cleaning up after the appropriate NOTIFY.
        if (this.disposed) {
            return;
        }
        //  If the "Subscription-State" value is "terminated", the subscriber
        //  MUST consider the subscription terminated.  The "expires" parameter
        //  has no semantics for "terminated" -- notifiers SHOULD NOT include an
        //  "expires" parameter on a "Subscription-State" header field with a
        //  value of "terminated", and subscribers MUST ignore any such
        //  parameter, if present.  If a reason code is present, the client
        //  should behave as described below.  If no reason code or an unknown
        //  reason code is present, the client MAY attempt to re-subscribe at any
        //  time (unless a "retry-after" parameter is present, in which case the
        //  client SHOULD NOT attempt re-subscription until after the number of
        //  seconds specified by the "retry-after" parameter).  The reason codes
        //  defined by this document are:
        // https://tools.ietf.org/html/rfc6665#section-4.1.3
        var subscriptionState = request.message.parseHeader("Subscription-State");
        if (subscriptionState && subscriptionState.state) {
            switch (subscriptionState.state) {
                case "terminated":
                    if (subscriptionState.reason) {
                        this.logger.log("Terminated subscription with reason " + subscriptionState.reason);
                        switch (subscriptionState.reason) {
                            case "deactivated":
                            case "timeout":
                                this.initContext();
                                this.subscribe();
                                return;
                            case "probation":
                            case "giveup":
                                this.initContext();
                                if (subscriptionState.params && subscriptionState.params["retry-after"]) {
                                    this.retryAfterTimer = setTimeout(function () { return _this.subscribe(); }, subscriptionState.params["retry-after"]);
                                }
                                else {
                                    this.subscribe();
                                }
                                return;
                            case "rejected":
                            case "noresource":
                            case "invariant":
                                break;
                        }
                    }
                    this.close();
                    break;
                default:
                    break;
            }
        }
    };
    Subscription.prototype.onRefresh = function (request) {
        var _this = this;
        request.delegate = {
            onAccept: function (response) { return _this.onAccepted(response); }
        };
    };
    Subscription.prototype.onTerminated = function () {
        this.emit("terminated");
    };
    Subscription.prototype.initContext = function () {
        var _this = this;
        var options = {
            extraHeaders: this.extraHeaders,
            body: this.body ? Utils_1.Utils.fromBodyObj(this.body) : undefined
        };
        this.context = new SubscribeClientContext(this.ua.userAgentCore, this.uri, this.event, this.expires, options);
        this.context.delegate = {
            onAccept: (function (response) { return _this.onAccepted(response); })
        };
        return this.context;
    };
    return Subscription;
}(events_1.EventEmitter));
exports.Subscription = Subscription;
// tslint:disable-next-line:max-classes-per-file
var SubscribeClientContext = /** @class */ (function () {
    function SubscribeClientContext(core, target, event, expires, options, delegate) {
        this.core = core;
        this.target = target;
        this.event = event;
        this.expires = expires;
        this.subscribed = false;
        this.logger = core.loggerFactory.getLogger("sip.subscription");
        this.delegate = delegate;
        var allowHeader = "Allow: " + allowed_methods_1.AllowedMethods.toString();
        var extraHeaders = (options && options.extraHeaders || []).slice();
        extraHeaders.push(allowHeader);
        extraHeaders.push("Event: " + this.event);
        extraHeaders.push("Expires: " + this.expires);
        extraHeaders.push("Contact: " + this.core.configuration.contact.toString());
        var body = options && options.body;
        this.message = core.makeOutgoingRequestMessage(Constants_1.C.SUBSCRIBE, this.target, this.core.configuration.aor, this.target, {}, extraHeaders, body);
    }
    /** Destructor. */
    SubscribeClientContext.prototype.dispose = function () {
        if (this.subscription) {
            this.subscription.dispose();
        }
        if (this.request) {
            this.request.waitNotifyStop();
            this.request.dispose();
        }
    };
    Object.defineProperty(SubscribeClientContext.prototype, "state", {
        /** Subscription state. */
        get: function () {
            if (this.subscription) {
                return this.subscription.subscriptionState;
            }
            else if (this.subscribed) {
                return core_1.SubscriptionState.NotifyWait;
            }
            else {
                return core_1.SubscriptionState.Initial;
            }
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Establish subscription.
     * @param options Options bucket.
     */
    SubscribeClientContext.prototype.subscribe = function () {
        var _this = this;
        if (this.subscribed) {
            return Promise.reject(new Error("Not in initial state. Did you call subscribe more than once?"));
        }
        this.subscribed = true;
        return new Promise(function (resolve, reject) {
            if (!_this.message) {
                throw new Error("Message undefined.");
            }
            _this.request = _this.core.subscribe(_this.message, {
                // This SUBSCRIBE request will be confirmed with a final response.
                // 200-class responses indicate that the subscription has been accepted
                // and that a NOTIFY request will be sent immediately.
                // https://tools.ietf.org/html/rfc6665#section-4.1.2.1
                onAccept: function (response) {
                    if (_this.delegate && _this.delegate.onAccept) {
                        _this.delegate.onAccept(response);
                    }
                },
                // Due to the potential for out-of-order messages, packet loss, and
                // forking, the subscriber MUST be prepared to receive NOTIFY requests
                // before the SUBSCRIBE transaction has completed.
                // https://tools.ietf.org/html/rfc6665#section-4.1.2.4
                onNotify: function (requestWithSubscription) {
                    _this.subscription = requestWithSubscription.subscription;
                    if (_this.subscription) {
                        _this.subscription.autoRefresh = true;
                    }
                    resolve({ success: requestWithSubscription });
                },
                // If this Timer N expires prior to the receipt of a NOTIFY request,
                // the subscriber considers the subscription failed, and cleans up
                // any state associated with the subscription attempt.
                // https://tools.ietf.org/html/rfc6665#section-4.1.2.4
                onNotifyTimeout: function () {
                    resolve({ failure: {} });
                },
                // This SUBSCRIBE request will be confirmed with a final response.
                // Non-200-class final responses indicate that no subscription or new
                // dialog usage has been created, and no subsequent NOTIFY request will
                // be sent.
                // https://tools.ietf.org/html/rfc6665#section-4.1.2.1
                onRedirect: function (response) {
                    resolve({ failure: { response: response } });
                },
                // This SUBSCRIBE request will be confirmed with a final response.
                // Non-200-class final responses indicate that no subscription or new
                // dialog usage has been created, and no subsequent NOTIFY request will
                // be sent.
                // https://tools.ietf.org/html/rfc6665#section-4.1.2.1
                onReject: function (response) {
                    resolve({ failure: { response: response } });
                }
            });
        });
    };
    return SubscribeClientContext;
}());


/***/ }),
/* 93 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var ClientContext_1 = __webpack_require__(79);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Parser_1 = __webpack_require__(85);
var PublishContext_1 = __webpack_require__(86);
var ReferContext_1 = __webpack_require__(87);
var RegisterContext_1 = __webpack_require__(89);
var ServerContext_1 = __webpack_require__(88);
var Session_1 = __webpack_require__(90);
var Subscription_1 = __webpack_require__(92);
var Utils_1 = __webpack_require__(83);
var SessionDescriptionHandler_1 = __webpack_require__(94);
var Transport_1 = __webpack_require__(103);
/**
 * @class Class creating a SIP User Agent.
 * @param {function returning SIP.sessionDescriptionHandler} [configuration.sessionDescriptionHandlerFactory]
 *  A function will be invoked by each of the UA's Sessions to build the sessionDescriptionHandler for that Session.
 *  If no (or a falsy) value is provided, each Session will use a default (WebRTC) sessionDescriptionHandler.
 */
var UA = /** @class */ (function (_super) {
    tslib_1.__extends(UA, _super);
    function UA(configuration) {
        var _this = _super.call(this) || this;
        /** Unload listener. */
        _this.unloadListener = (function () { _this.stop(); });
        _this.type = Enums_1.TypeStrings.UA;
        _this.log = new core_1.LoggerFactory();
        _this.logger = _this.getLogger("sip.ua");
        _this.configuration = {};
        // User actions outside any session/dialog (MESSAGE)
        _this.applicants = {};
        _this.data = {};
        _this.sessions = {};
        _this.subscriptions = {};
        _this.publishers = {};
        _this.status = Enums_1.UAStatus.STATUS_INIT;
        /**
         * Load configuration
         *
         * @throws {SIP.Exceptions.ConfigurationError}
         * @throws {TypeError}
         */
        if (configuration === undefined) {
            configuration = {};
        }
        else if (typeof configuration === "string" || configuration instanceof String) {
            configuration = {
                uri: configuration
            };
        }
        // Apply log configuration if present
        if (configuration.log) {
            _this.log.builtinEnabled = configuration.log.builtinEnabled;
            if (configuration.log.hasOwnProperty("connector")) {
                _this.log.connector = configuration.log.connector;
            }
            if (configuration.log.hasOwnProperty("level")) {
                var level = configuration.log.level;
                var normalized = void 0;
                if (typeof level === "string") {
                    switch (level) {
                        case "error":
                            normalized = core_1.Levels.error;
                            break;
                        case "warn":
                            normalized = core_1.Levels.warn;
                            break;
                        case "log":
                            normalized = core_1.Levels.log;
                            break;
                        case "debug":
                            normalized = core_1.Levels.debug;
                            break;
                        default:
                            break;
                    }
                }
                else {
                    switch (level) {
                        case 0:
                            normalized = core_1.Levels.error;
                            break;
                        case 1:
                            normalized = core_1.Levels.warn;
                            break;
                        case 2:
                            normalized = core_1.Levels.log;
                            break;
                        case 3:
                            normalized = core_1.Levels.debug;
                            break;
                        default:
                            break;
                    }
                }
                // avoid setting level when invalid, use default level instead
                if (normalized === undefined) {
                    _this.logger.error("Invalid \"level\" parameter value: " + JSON.stringify(level));
                }
                else {
                    _this.log.level = normalized;
                }
            }
        }
        var deprecatedMessage = "The UA class has been deprecated and will no longer be available starting with SIP.js release 0.16.0. " +
            "The UA has been replaced by the UserAgent class. Please update accordingly.";
        _this.logger.warn(deprecatedMessage);
        try {
            _this.loadConfig(configuration);
        }
        catch (e) {
            _this.status = Enums_1.UAStatus.STATUS_NOT_READY;
            _this.error = UA.C.CONFIGURATION_ERROR;
            throw e;
        }
        if (!_this.configuration.transportConstructor) {
            throw new core_1.TransportError("Transport constructor not set");
        }
        _this.transport = new _this.configuration.transportConstructor(_this.getLogger("sip.transport"), _this.configuration.transportOptions);
        var userAgentCoreConfiguration = makeUserAgentCoreConfigurationFromUA(_this);
        // The Replaces header contains information used to match an existing
        // SIP dialog (call-id, to-tag, and from-tag).  Upon receiving an INVITE
        // with a Replaces header, the User Agent (UA) attempts to match this
        // information with a confirmed or early dialog.
        // https://tools.ietf.org/html/rfc3891#section-3
        var handleInviteWithReplacesHeader = function (context, request) {
            if (_this.configuration.replaces !== Constants_1.C.supported.UNSUPPORTED) {
                var replaces = request.parseHeader("replaces");
                if (replaces) {
                    var targetSession = _this.sessions[replaces.call_id + replaces.replaces_from_tag] ||
                        _this.sessions[replaces.call_id + replaces.replaces_to_tag] ||
                        undefined;
                    if (!targetSession) {
                        _this.userAgentCore.replyStateless(request, { statusCode: 481 });
                        return;
                    }
                    if (targetSession.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
                        _this.userAgentCore.replyStateless(request, { statusCode: 603 });
                        return;
                    }
                    var targetDialogId = replaces.call_id + replaces.replaces_to_tag + replaces.replaces_from_tag;
                    var targetDialog = _this.userAgentCore.dialogs.get(targetDialogId);
                    if (!targetDialog) {
                        _this.userAgentCore.replyStateless(request, { statusCode: 481 });
                        return;
                    }
                    if (!targetDialog.early && replaces.early_only) {
                        _this.userAgentCore.replyStateless(request, { statusCode: 486 });
                        return;
                    }
                    context.replacee = targetSession;
                }
            }
        };
        var userAgentCoreDelegate = {
            onInvite: function (incomingInviteRequest) {
                // FIXME: Ported - 100 Trying send should be configurable.
                // Only required if TU will not respond in 200ms.
                // https://tools.ietf.org/html/rfc3261#section-17.2.1
                incomingInviteRequest.trying();
                incomingInviteRequest.delegate = {
                    onCancel: function (cancel) {
                        context.onCancel(cancel);
                    },
                    onTransportError: function (error) {
                        context.onTransportError();
                    }
                };
                var context = new Session_1.InviteServerContext(_this, incomingInviteRequest);
                // Ported - handling of out of dialog INVITE with Replaces.
                handleInviteWithReplacesHeader(context, incomingInviteRequest.message);
                // Ported - make the first call to progress automatically.
                if (context.autoSendAnInitialProvisionalResponse) {
                    context.progress();
                }
                _this.emit("invite", context);
            },
            onMessage: function (incomingMessageRequest) {
                // Ported - handling of out of dialog MESSAGE.
                var serverContext = new ServerContext_1.ServerContext(_this, incomingMessageRequest);
                serverContext.body = incomingMessageRequest.message.body;
                serverContext.contentType = incomingMessageRequest.message.getHeader("Content-Type") || "text/plain";
                incomingMessageRequest.accept();
                _this.emit("message", serverContext); // TODO: Review. Why is a "ServerContext" emitted? What use it is?
            },
            onNotify: function (incomingNotifyRequest) {
                // DEPRECATED: Out of dialog NOTIFY is an obsolete usage.
                // Ported - handling of out of dialog NOTIFY.
                if (_this.configuration.allowLegacyNotifications && _this.listeners("notify").length > 0) {
                    incomingNotifyRequest.accept();
                    _this.emit("notify", { request: incomingNotifyRequest.message });
                }
                else {
                    incomingNotifyRequest.reject({ statusCode: 481 });
                }
            },
            onRefer: function (incomingReferRequest) {
                // Ported - handling of out of dialog REFER.
                _this.logger.log("Received an out of dialog refer");
                if (!_this.configuration.allowOutOfDialogRefers) {
                    incomingReferRequest.reject({ statusCode: 405 });
                }
                _this.logger.log("Allow out of dialog refers is enabled on the UA");
                var referContext = new ReferContext_1.ReferServerContext(_this, incomingReferRequest);
                if (_this.listeners("outOfDialogReferRequested").length) {
                    _this.emit("outOfDialogReferRequested", referContext);
                }
                else {
                    _this.logger.log("No outOfDialogReferRequest listeners, automatically accepting and following the out of dialog refer");
                    referContext.accept({ followRefer: true });
                }
            },
            onSubscribe: function (incomingSubscribeRequest) {
                _this.emit("subscribe", incomingSubscribeRequest);
            },
        };
        _this.userAgentCore = new core_1.UserAgentCore(userAgentCoreConfiguration, userAgentCoreDelegate);
        // Initialize registerContext
        _this.registerContext = new RegisterContext_1.RegisterContext(_this, configuration.registerOptions);
        _this.registerContext.on("failed", _this.emit.bind(_this, "registrationFailed"));
        _this.registerContext.on("registered", _this.emit.bind(_this, "registered"));
        _this.registerContext.on("unregistered", _this.emit.bind(_this, "unregistered"));
        if (_this.configuration.autostart) {
            _this.start();
        }
        return _this;
    }
    // =================
    //  High Level API
    // =================
    UA.prototype.register = function (options) {
        if (options === void 0) { options = {}; }
        if (options.register) {
            this.configuration.register = true;
        }
        this.registerContext.register(options);
        return this;
    };
    /**
     * Unregister.
     *
     * @param {Boolean} [all] unregister all user bindings.
     *
     */
    UA.prototype.unregister = function (options) {
        var _this = this;
        this.configuration.register = false;
        this.transport.afterConnected(function () {
            _this.registerContext.unregister(options);
        });
        return this;
    };
    UA.prototype.isRegistered = function () {
        return this.registerContext.registered;
    };
    /**
     * Make an outgoing call.
     *
     * @param {String} target
     * @param {Object} views
     * @param {Object} [options.media] gets passed to SIP.sessionDescriptionHandler.getDescription as mediaHint
     *
     * @throws {TypeError}
     *
     */
    UA.prototype.invite = function (target, options, modifiers) {
        var _this = this;
        var context = new Session_1.InviteClientContext(this, target, options, modifiers);
        // Delay sending actual invite until the next 'tick' if we are already
        // connected, so that API consumers can register to events fired by the
        // the session.
        this.transport.afterConnected(function () {
            context.invite();
            _this.emit("inviteSent", context);
        });
        return context;
    };
    UA.prototype.subscribe = function (target, event, options) {
        var sub = new Subscription_1.Subscription(this, target, event, options);
        this.transport.afterConnected(function () { return sub.subscribe(); });
        return sub;
    };
    /**
     * Send PUBLISH Event State Publication (RFC3903)
     *
     * @param {String} target
     * @param {String} event
     * @param {String} body
     * @param {Object} [options]
     *
     * @throws {SIP.Exceptions.MethodParameterError}
     */
    UA.prototype.publish = function (target, event, body, options) {
        var pub = new PublishContext_1.PublishContext(this, target, event, options);
        this.transport.afterConnected(function () {
            pub.publish(body);
        });
        return pub;
    };
    /**
     * Send a message.
     *
     * @param {String} target
     * @param {String} body
     * @param {Object} [options]
     *
     * @throws {TypeError}
     */
    UA.prototype.message = function (target, body, options) {
        if (options === void 0) { options = {}; }
        if (body === undefined) {
            throw new TypeError("Not enough arguments");
        }
        // There is no Message module, so it is okay that the UA handles defaults here.
        options.contentType = options.contentType || "text/plain";
        options.body = body;
        return this.request(Constants_1.C.MESSAGE, target, options);
    };
    UA.prototype.request = function (method, target, options) {
        var req = new ClientContext_1.ClientContext(this, method, target, options);
        this.transport.afterConnected(function () { return req.send(); });
        return req;
    };
    /**
     * Gracefully close.
     */
    UA.prototype.stop = function () {
        this.logger.log("user requested closure...");
        if (this.status === Enums_1.UAStatus.STATUS_USER_CLOSED) {
            this.logger.warn("UA already closed");
            return this;
        }
        // Close registerContext
        this.logger.log("closing registerContext");
        this.registerContext.close();
        // Run terminate on every Session
        for (var session in this.sessions) {
            if (this.sessions[session]) {
                this.logger.log("closing session " + session);
                this.sessions[session].terminate();
            }
        }
        // Run unsubscribe on every Subscription
        for (var subscription in this.subscriptions) {
            if (this.subscriptions[subscription]) {
                this.logger.log("unsubscribe " + subscription);
                this.subscriptions[subscription].unsubscribe();
            }
        }
        // Run close on every Publisher
        for (var publisher in this.publishers) {
            if (this.publishers[publisher]) {
                this.logger.log("unpublish " + publisher);
                this.publishers[publisher].close();
            }
        }
        // Run close on every applicant
        for (var applicant in this.applicants) {
            if (this.applicants[applicant]) {
                this.applicants[applicant].close();
            }
        }
        this.status = Enums_1.UAStatus.STATUS_USER_CLOSED;
        // Disconnect the transport and reset user agent core
        this.transport.disconnect();
        this.userAgentCore.reset();
        if (this.configuration.autostop) {
            // Google Chrome Packaged Apps don't allow 'unload' listeners: unload is not available in packaged apps
            var googleChromePackagedApp = typeof chrome !== "undefined" && chrome.app && chrome.app.runtime ? true : false;
            if (typeof window !== "undefined" &&
                typeof window.removeEventListener === "function" &&
                !googleChromePackagedApp) {
                window.removeEventListener("unload", this.unloadListener);
            }
        }
        return this;
    };
    /**
     * Connect to the WS server if status = STATUS_INIT.
     * Resume UA after being closed.
     *
     */
    UA.prototype.start = function () {
        this.logger.log("user requested startup...");
        if (this.status === Enums_1.UAStatus.STATUS_INIT) {
            this.status = Enums_1.UAStatus.STATUS_STARTING;
            this.setTransportListeners();
            this.emit("transportCreated", this.transport);
            this.transport.connect();
        }
        else if (this.status === Enums_1.UAStatus.STATUS_USER_CLOSED) {
            this.logger.log("resuming");
            this.status = Enums_1.UAStatus.STATUS_READY;
            this.transport.connect();
        }
        else if (this.status === Enums_1.UAStatus.STATUS_STARTING) {
            this.logger.log("UA is in STARTING status, not opening new connection");
        }
        else if (this.status === Enums_1.UAStatus.STATUS_READY) {
            this.logger.log("UA is in READY status, not resuming");
        }
        else {
            this.logger.error("Connection is down. Auto-Recovery system is trying to connect");
        }
        if (this.configuration.autostop) {
            // Google Chrome Packaged Apps don't allow 'unload' listeners: unload is not available in packaged apps
            var googleChromePackagedApp = typeof chrome !== "undefined" && chrome.app && chrome.app.runtime ? true : false;
            if (typeof window !== "undefined" &&
                typeof window.addEventListener === "function" &&
                !googleChromePackagedApp) {
                window.addEventListener("unload", this.unloadListener);
            }
        }
        return this;
    };
    /**
     * Normalize a string into a valid SIP request URI
     *
     * @param {String} target
     *
     * @returns {SIP.URI|undefined}
     */
    UA.prototype.normalizeTarget = function (target) {
        return Utils_1.Utils.normalizeTarget(target, this.configuration.hostportParams);
    };
    UA.prototype.getLogger = function (category, label) {
        return this.log.getLogger(category, label);
    };
    UA.prototype.getLoggerFactory = function () {
        return this.log;
    };
    UA.prototype.getSupportedResponseOptions = function () {
        var optionTags = [];
        if (this.contact.pubGruu || this.contact.tempGruu) {
            optionTags.push("gruu");
        }
        if (this.configuration.rel100 === Constants_1.C.supported.SUPPORTED) {
            optionTags.push("100rel");
        }
        if (this.configuration.replaces === Constants_1.C.supported.SUPPORTED) {
            optionTags.push("replaces");
        }
        optionTags.push("outbound");
        optionTags = optionTags.concat(this.configuration.extraSupported || []);
        var allowUnregistered = this.configuration.hackAllowUnregisteredOptionTags || false;
        var optionTagSet = {};
        optionTags = optionTags.filter(function (optionTag) {
            var registered = Constants_1.C.OPTION_TAGS[optionTag];
            var unique = !optionTagSet[optionTag];
            optionTagSet[optionTag] = true;
            return (registered || allowUnregistered) && unique;
        });
        return optionTags;
    };
    /**
     * Get the session to which the request belongs to, if any.
     * @param {SIP.IncomingRequest} request.
     * @returns {SIP.OutgoingSession|SIP.IncomingSession|undefined}
     */
    UA.prototype.findSession = function (request) {
        return this.sessions[request.callId + request.fromTag] ||
            this.sessions[request.callId + request.toTag] ||
            undefined;
    };
    UA.prototype.on = function (name, callback) { return _super.prototype.on.call(this, name, callback); };
    // ==============================
    // Event Handlers
    // ==============================
    UA.prototype.onTransportError = function () {
        if (this.status === Enums_1.UAStatus.STATUS_USER_CLOSED) {
            return;
        }
        if (!this.error || this.error !== UA.C.NETWORK_ERROR) {
            this.status = Enums_1.UAStatus.STATUS_NOT_READY;
            this.error = UA.C.NETWORK_ERROR;
        }
    };
    /**
     * Helper function. Sets transport listeners
     */
    UA.prototype.setTransportListeners = function () {
        var _this = this;
        this.transport.on("connected", function () { return _this.onTransportConnected(); });
        this.transport.on("message", function (message) { return _this.onTransportReceiveMsg(message); });
        this.transport.on("transportError", function () { return _this.onTransportError(); });
    };
    /**
     * Transport connection event.
     * @event
     * @param {SIP.Transport} transport.
     */
    UA.prototype.onTransportConnected = function () {
        var _this = this;
        if (this.configuration.register) {
            // In an effor to maintain behavior from when we "initialized" an
            // authentication factory, this is in a Promise.then
            Promise.resolve().then(function () { return _this.registerContext.register(); });
        }
    };
    /**
     * Handle SIP message received from the transport.
     * @param messageString The message.
     */
    UA.prototype.onTransportReceiveMsg = function (messageString) {
        var _this = this;
        var message = Parser_1.Parser.parseMessage(messageString, this.getLogger("sip.parser"));
        if (!message) {
            this.logger.warn("UA failed to parse incoming SIP message - discarding.");
            return;
        }
        if (this.status === Enums_1.UAStatus.STATUS_USER_CLOSED && message instanceof core_1.IncomingRequestMessage) {
            this.logger.warn("UA received message when status = USER_CLOSED - aborting");
            return;
        }
        // A valid SIP request formulated by a UAC MUST, at a minimum, contain
        // the following header fields: To, From, CSeq, Call-ID, Max-Forwards,
        // and Via; all of these header fields are mandatory in all SIP
        // requests.
        // https://tools.ietf.org/html/rfc3261#section-8.1.1
        var hasMinimumHeaders = function () {
            var mandatoryHeaders = ["from", "to", "call_id", "cseq", "via"];
            for (var _i = 0, mandatoryHeaders_1 = mandatoryHeaders; _i < mandatoryHeaders_1.length; _i++) {
                var header = mandatoryHeaders_1[_i];
                if (!message.hasHeader(header)) {
                    _this.logger.warn("Missing mandatory header field : " + header + ".");
                    return false;
                }
            }
            return true;
        };
        // Request Checks
        if (message instanceof core_1.IncomingRequestMessage) {
            // This is port of SanityCheck.minimumHeaders().
            if (!hasMinimumHeaders()) {
                this.logger.warn("Request missing mandatory header field. Dropping.");
                return;
            }
            // FIXME: This is non-standard and should be a configruable behavior (desirable regardless).
            // Custom SIP.js check to reject request from ourself (this instance of SIP.js).
            // This is port of SanityCheck.rfc3261_16_3_4().
            if (!message.toTag && message.callId.substr(0, 5) === this.configuration.sipjsId) {
                this.userAgentCore.replyStateless(message, { statusCode: 482 });
                return;
            }
            // FIXME: This should be Transport check before we get here (Section 18).
            // Custom SIP.js check to reject requests if body length wrong.
            // This is port of SanityCheck.rfc3261_18_3_request().
            var len = Utils_1.Utils.str_utf8_length(message.body);
            var contentLength = message.getHeader("content-length");
            if (contentLength && len < Number(contentLength)) {
                this.userAgentCore.replyStateless(message, { statusCode: 400 });
                return;
            }
        }
        // Reponse Checks
        if (message instanceof core_1.IncomingResponseMessage) {
            // This is port of SanityCheck.minimumHeaders().
            if (!hasMinimumHeaders()) {
                this.logger.warn("Response missing mandatory header field. Dropping.");
                return;
            }
            // Custom SIP.js check to drop responses if multiple Via headers.
            // This is port of SanityCheck.rfc3261_8_1_3_3().
            if (message.getHeaders("via").length > 1) {
                this.logger.warn("More than one Via header field present in the response. Dropping.");
                return;
            }
            // FIXME: This should be Transport check before we get here (Section 18).
            // Custom SIP.js check to drop responses if bad Via header.
            // This is port of SanityCheck.rfc3261_18_1_2().
            if (message.via.host !== this.configuration.viaHost || message.via.port !== undefined) {
                this.logger.warn("Via sent-by in the response does not match UA Via host value. Dropping.");
                return;
            }
            // FIXME: This should be Transport check before we get here (Section 18).
            // Custom SIP.js check to reject requests if body length wrong.
            // This is port of SanityCheck.rfc3261_18_3_response().
            var len = Utils_1.Utils.str_utf8_length(message.body);
            var contentLength = message.getHeader("content-length");
            if (contentLength && len < Number(contentLength)) {
                this.logger.warn("Message body length is lower than the value in Content-Length header field. Dropping.");
                return;
            }
        }
        // Handle Request
        if (message instanceof core_1.IncomingRequestMessage) {
            this.userAgentCore.receiveIncomingRequestFromTransport(message);
            return;
        }
        // Handle Response
        if (message instanceof core_1.IncomingResponseMessage) {
            this.userAgentCore.receiveIncomingResponseFromTransport(message);
            return;
        }
        throw new Error("Invalid message type.");
    };
    // =================
    // Utils
    // =================
    UA.prototype.checkAuthenticationFactory = function (authenticationFactory) {
        if (!(authenticationFactory instanceof Function)) {
            return;
        }
        if (!authenticationFactory.initialize) {
            authenticationFactory.initialize = function () {
                return Promise.resolve();
            };
        }
        return authenticationFactory;
    };
    /**
     * Configuration load.
     * returns {void}
     */
    UA.prototype.loadConfig = function (configuration) {
        var _this = this;
        // Settings and default values
        var settings = {
            /* Host address
             * Value to be set in Via sent_by and host part of Contact FQDN
             */
            viaHost: Utils_1.Utils.createRandomToken(12) + ".invalid",
            uri: new core_1.URI("sip", "anonymous." + Utils_1.Utils.createRandomToken(6), "anonymous.invalid", undefined, undefined),
            // Custom Configuration Settings
            custom: {},
            // Display name
            displayName: "",
            // Password
            password: undefined,
            register: true,
            // Registration parameters
            registerOptions: {},
            // Transport related parameters
            transportConstructor: Transport_1.Transport,
            transportOptions: {},
            usePreloadedRoute: false,
            // string to be inserted into User-Agent request header
            userAgentString: Constants_1.C.USER_AGENT,
            // Session parameters
            noAnswerTimeout: 60,
            // Hacks
            hackViaTcp: false,
            hackIpInContact: false,
            hackWssInTransport: false,
            hackAllowUnregisteredOptionTags: false,
            // Session Description Handler Options
            sessionDescriptionHandlerFactoryOptions: {
                constraints: {},
                peerConnectionOptions: {}
            },
            extraSupported: [],
            contactName: Utils_1.Utils.createRandomToken(8),
            contactTransport: "ws",
            forceRport: false,
            // autostarting
            autostart: true,
            autostop: true,
            // Reliable Provisional Responses
            rel100: Constants_1.C.supported.UNSUPPORTED,
            // DTMF type: 'info' or 'rtp' (RFC 4733)
            // RTP Payload Spec: https://tools.ietf.org/html/rfc4733
            // WebRTC Audio Spec: https://tools.ietf.org/html/rfc7874
            dtmfType: Constants_1.C.dtmfType.INFO,
            // Replaces header (RFC 3891)
            // http://tools.ietf.org/html/rfc3891
            replaces: Constants_1.C.supported.UNSUPPORTED,
            sessionDescriptionHandlerFactory: SessionDescriptionHandler_1.SessionDescriptionHandler.defaultFactory,
            authenticationFactory: this.checkAuthenticationFactory(function (ua) {
                return new core_1.DigestAuthentication(ua.getLoggerFactory(), _this.configuration.authorizationUser, _this.configuration.password);
            }),
            allowLegacyNotifications: false,
            allowOutOfDialogRefers: false,
            experimentalFeatures: false
        };
        var configCheck = this.getConfigurationCheck();
        // Check Mandatory parameters
        for (var parameter in configCheck.mandatory) {
            if (!configuration.hasOwnProperty(parameter)) {
                throw new Exceptions_1.Exceptions.ConfigurationError(parameter);
            }
            else {
                var value = configuration[parameter];
                var checkedValue = configCheck.mandatory[parameter](value);
                if (checkedValue !== undefined) {
                    settings[parameter] = checkedValue;
                }
                else {
                    throw new Exceptions_1.Exceptions.ConfigurationError(parameter, value);
                }
            }
        }
        // Check Optional parameters
        for (var parameter in configCheck.optional) {
            if (configuration.hasOwnProperty(parameter)) {
                var value = configuration[parameter];
                // If the parameter value is an empty array, but shouldn't be, apply its default value.
                // If the parameter value is null, empty string, or undefined then apply its default value.
                // If it's a number with NaN value then also apply its default value.
                // NOTE: JS does not allow "value === NaN", the following does the work:
                if ((value instanceof Array && value.length === 0) ||
                    (value === null || value === "" || value === undefined) ||
                    (typeof (value) === "number" && isNaN(value))) {
                    continue;
                }
                var checkedValue = configCheck.optional[parameter](value);
                if (checkedValue !== undefined) {
                    settings[parameter] = checkedValue;
                }
                else {
                    throw new Exceptions_1.Exceptions.ConfigurationError(parameter, value);
                }
            }
        }
        // Post Configuration Process
        // Allow passing 0 number as displayName.
        if (settings.displayName === 0) {
            settings.displayName = "0";
        }
        // sipjsId instance parameter. Static random tag of length 5
        settings.sipjsId = Utils_1.Utils.createRandomToken(5);
        // String containing settings.uri without scheme and user.
        var hostportParams = settings.uri.clone();
        hostportParams.user = undefined;
        settings.hostportParams = hostportParams.toRaw().replace(/^sip:/i, "");
        /* Check whether authorizationUser is explicitly defined.
         * Take 'settings.uri.user' value if not.
         */
        if (!settings.authorizationUser) {
            settings.authorizationUser = settings.uri.user;
        }
        // User noAnswerTimeout
        settings.noAnswerTimeout = settings.noAnswerTimeout * 1000;
        // Via Host
        if (settings.hackIpInContact) {
            if (typeof settings.hackIpInContact === "boolean") {
                var from = 1;
                var to = 254;
                var octet = Math.floor(Math.random() * (to - from + 1) + from);
                // random Test-Net IP (http://tools.ietf.org/html/rfc5735)
                settings.viaHost = "192.0.2." + octet;
            }
            else if (typeof settings.hackIpInContact === "string") {
                settings.viaHost = settings.hackIpInContact;
            }
        }
        // Contact transport parameter
        if (settings.hackWssInTransport) {
            settings.contactTransport = "wss";
        }
        this.contact = {
            pubGruu: undefined,
            tempGruu: undefined,
            uri: new core_1.URI("sip", settings.contactName, settings.viaHost, undefined, { transport: settings.contactTransport }),
            toString: function (options) {
                if (options === void 0) { options = {}; }
                var anonymous = options.anonymous || false;
                var outbound = options.outbound || false;
                var contact = "<";
                if (anonymous) {
                    contact += (_this.contact.tempGruu ||
                        ("sip:anonymous@anonymous.invalid;transport=" + settings.contactTransport)).toString();
                }
                else {
                    contact += (_this.contact.pubGruu || _this.contact.uri).toString();
                }
                if (outbound) {
                    contact += ";ob";
                }
                contact += ">";
                return contact;
            }
        };
        var skeleton = {};
        // Fill the value of the configuration_skeleton
        for (var parameter in settings) {
            if (settings.hasOwnProperty(parameter)) {
                skeleton[parameter] = settings[parameter];
            }
        }
        Object.assign(this.configuration, skeleton);
        this.logger.log("configuration parameters after validation:");
        for (var parameter in settings) {
            if (settings.hasOwnProperty(parameter)) {
                switch (parameter) {
                    case "uri":
                    case "sessionDescriptionHandlerFactory":
                        this.logger.log("· " + parameter + ": " + settings[parameter]);
                        break;
                    case "password":
                        this.logger.log("· " + parameter + ": " + "NOT SHOWN");
                        break;
                    case "transportConstructor":
                        this.logger.log("· " + parameter + ": " + settings[parameter].name);
                        break;
                    default:
                        this.logger.log("· " + parameter + ": " + JSON.stringify(settings[parameter]));
                }
            }
        }
        return;
    };
    /**
     * Configuration checker.
     * @return {Boolean}
     */
    UA.prototype.getConfigurationCheck = function () {
        return {
            mandatory: {},
            optional: {
                uri: function (uri) {
                    if (!(/^sip:/i).test(uri)) {
                        uri = Constants_1.C.SIP + ":" + uri;
                    }
                    var parsed = core_1.Grammar.URIParse(uri);
                    if (!parsed || !parsed.user) {
                        return;
                    }
                    else {
                        return parsed;
                    }
                },
                transportConstructor: function (transportConstructor) {
                    if (transportConstructor instanceof Function) {
                        return transportConstructor;
                    }
                },
                transportOptions: function (transportOptions) {
                    if (typeof transportOptions === "object") {
                        return transportOptions;
                    }
                },
                authorizationUser: function (authorizationUser) {
                    if (core_1.Grammar.parse('"' + authorizationUser + '"', "quoted_string") === -1) {
                        return;
                    }
                    else {
                        return authorizationUser;
                    }
                },
                displayName: function (displayName) {
                    if (core_1.Grammar.parse('"' + displayName + '"', "displayName") === -1) {
                        return;
                    }
                    else {
                        return displayName;
                    }
                },
                dtmfType: function (dtmfType) {
                    switch (dtmfType) {
                        case Constants_1.C.dtmfType.RTP:
                            return Constants_1.C.dtmfType.RTP;
                        case Constants_1.C.dtmfType.INFO:
                        // Fall through
                        default:
                            return Constants_1.C.dtmfType.INFO;
                    }
                },
                hackViaTcp: function (hackViaTcp) {
                    if (typeof hackViaTcp === "boolean") {
                        return hackViaTcp;
                    }
                },
                hackIpInContact: function (hackIpInContact) {
                    if (typeof hackIpInContact === "boolean") {
                        return hackIpInContact;
                    }
                    else if (typeof hackIpInContact === "string" && core_1.Grammar.parse(hackIpInContact, "host") !== -1) {
                        return hackIpInContact;
                    }
                },
                hackWssInTransport: function (hackWssInTransport) {
                    if (typeof hackWssInTransport === "boolean") {
                        return hackWssInTransport;
                    }
                },
                hackAllowUnregisteredOptionTags: function (hackAllowUnregisteredOptionTags) {
                    if (typeof hackAllowUnregisteredOptionTags === "boolean") {
                        return hackAllowUnregisteredOptionTags;
                    }
                },
                contactTransport: function (contactTransport) {
                    if (typeof contactTransport === "string") {
                        return contactTransport;
                    }
                },
                extraSupported: function (optionTags) {
                    if (!(optionTags instanceof Array)) {
                        return;
                    }
                    for (var _i = 0, optionTags_1 = optionTags; _i < optionTags_1.length; _i++) {
                        var tag = optionTags_1[_i];
                        if (typeof tag !== "string") {
                            return;
                        }
                    }
                    return optionTags;
                },
                forceRport: function (forceRport) {
                    if (typeof forceRport === "boolean") {
                        return forceRport;
                    }
                },
                noAnswerTimeout: function (noAnswerTimeout) {
                    if (Utils_1.Utils.isDecimal(noAnswerTimeout)) {
                        var value = Number(noAnswerTimeout);
                        if (value > 0) {
                            return value;
                        }
                    }
                },
                password: function (password) {
                    return String(password);
                },
                rel100: function (rel100) {
                    if (rel100 === Constants_1.C.supported.REQUIRED) {
                        return Constants_1.C.supported.REQUIRED;
                    }
                    else if (rel100 === Constants_1.C.supported.SUPPORTED) {
                        return Constants_1.C.supported.SUPPORTED;
                    }
                    else {
                        return Constants_1.C.supported.UNSUPPORTED;
                    }
                },
                replaces: function (replaces) {
                    if (replaces === Constants_1.C.supported.REQUIRED) {
                        return Constants_1.C.supported.REQUIRED;
                    }
                    else if (replaces === Constants_1.C.supported.SUPPORTED) {
                        return Constants_1.C.supported.SUPPORTED;
                    }
                    else {
                        return Constants_1.C.supported.UNSUPPORTED;
                    }
                },
                register: function (register) {
                    if (typeof register === "boolean") {
                        return register;
                    }
                },
                registerOptions: function (registerOptions) {
                    if (typeof registerOptions === "object") {
                        return registerOptions;
                    }
                },
                usePreloadedRoute: function (usePreloadedRoute) {
                    if (typeof usePreloadedRoute === "boolean") {
                        return usePreloadedRoute;
                    }
                },
                userAgentString: function (userAgentString) {
                    if (typeof userAgentString === "string") {
                        return userAgentString;
                    }
                },
                autostart: function (autostart) {
                    if (typeof autostart === "boolean") {
                        return autostart;
                    }
                },
                autostop: function (autostop) {
                    if (typeof autostop === "boolean") {
                        return autostop;
                    }
                },
                sessionDescriptionHandlerFactory: function (sessionDescriptionHandlerFactory) {
                    if (sessionDescriptionHandlerFactory instanceof Function) {
                        return sessionDescriptionHandlerFactory;
                    }
                },
                sessionDescriptionHandlerFactoryOptions: function (options) {
                    if (typeof options === "object") {
                        return options;
                    }
                },
                authenticationFactory: this.checkAuthenticationFactory,
                allowLegacyNotifications: function (allowLegacyNotifications) {
                    if (typeof allowLegacyNotifications === "boolean") {
                        return allowLegacyNotifications;
                    }
                },
                custom: function (custom) {
                    if (typeof custom === "object") {
                        return custom;
                    }
                },
                contactName: function (contactName) {
                    if (typeof contactName === "string") {
                        return contactName;
                    }
                },
                experimentalFeatures: function (experimentalFeatures) {
                    if (typeof experimentalFeatures === "boolean") {
                        return experimentalFeatures;
                    }
                },
            }
        };
    };
    UA.C = {
        // UA status codes
        STATUS_INIT: 0,
        STATUS_STARTING: 1,
        STATUS_READY: 2,
        STATUS_USER_CLOSED: 3,
        STATUS_NOT_READY: 4,
        // UA error codes
        CONFIGURATION_ERROR: 1,
        NETWORK_ERROR: 2,
        ALLOWED_METHODS: [
            "ACK",
            "CANCEL",
            "INVITE",
            "MESSAGE",
            "BYE",
            "OPTIONS",
            "INFO",
            "NOTIFY",
            "REFER"
        ],
        ACCEPTED_BODY_TYPES: [
            "application/sdp",
            "application/dtmf-relay"
        ],
        MAX_FORWARDS: 70,
        TAG_LENGTH: 10
    };
    return UA;
}(events_1.EventEmitter));
exports.UA = UA;
(function (UA) {
    var DtmfType;
    (function (DtmfType) {
        DtmfType["RTP"] = "rtp";
        DtmfType["INFO"] = "info";
    })(DtmfType = UA.DtmfType || (UA.DtmfType = {}));
})(UA = exports.UA || (exports.UA = {}));
exports.UA = UA;
/**
 * Factory function to generate configuration give a UA.
 * @param ua UA
 */
function makeUserAgentCoreConfigurationFromUA(ua) {
    // FIXME: Configuration URI is a bad mix of types currently. It also needs to exist.
    if (!(ua.configuration.uri instanceof core_1.URI)) {
        throw new Error("Configuration URI not instance of URI.");
    }
    var aor = ua.configuration.uri;
    var contact = ua.contact;
    var displayName = ua.configuration.displayName ? ua.configuration.displayName : "";
    var hackViaTcp = ua.configuration.hackViaTcp ? true : false;
    var routeSet = ua.configuration.usePreloadedRoute && ua.transport.server && ua.transport.server.sipUri ?
        [ua.transport.server.sipUri] :
        [];
    var sipjsId = ua.configuration.sipjsId || Utils_1.Utils.createRandomToken(5);
    var supportedOptionTags = [];
    supportedOptionTags.push("outbound"); // TODO: is this really supported?
    if (ua.configuration.rel100 === Constants_1.C.supported.SUPPORTED) {
        supportedOptionTags.push("100rel");
    }
    if (ua.configuration.replaces === Constants_1.C.supported.SUPPORTED) {
        supportedOptionTags.push("replaces");
    }
    if (ua.configuration.extraSupported) {
        supportedOptionTags.push.apply(supportedOptionTags, ua.configuration.extraSupported);
    }
    if (!ua.configuration.hackAllowUnregisteredOptionTags) {
        supportedOptionTags = supportedOptionTags.filter(function (optionTag) { return Constants_1.C.OPTION_TAGS[optionTag]; });
    }
    supportedOptionTags = Array.from(new Set(supportedOptionTags)); // array of unique values
    var supportedOptionTagsResponse = ua.getSupportedResponseOptions();
    var userAgentHeaderFieldValue = ua.configuration.userAgentString || "sipjs";
    if (!(ua.configuration.viaHost)) {
        throw new Error("Configuration via host undefined");
    }
    var viaForceRport = ua.configuration.forceRport ? true : false;
    var viaHost = ua.configuration.viaHost;
    var configuration = {
        aor: aor,
        contact: contact,
        displayName: displayName,
        hackViaTcp: hackViaTcp,
        loggerFactory: ua.getLoggerFactory(),
        routeSet: routeSet,
        sipjsId: sipjsId,
        supportedOptionTags: supportedOptionTags,
        supportedOptionTagsResponse: supportedOptionTagsResponse,
        userAgentHeaderFieldValue: userAgentHeaderFieldValue,
        viaForceRport: viaForceRport,
        viaHost: viaHost,
        authenticationFactory: function () {
            if (ua.configuration.authenticationFactory) {
                return ua.configuration.authenticationFactory(ua);
            }
            return undefined;
        },
        transportAccessor: function () { return ua.transport; }
    };
    return configuration;
}
exports.makeUserAgentCoreConfigurationFromUA = makeUserAgentCoreConfigurationFromUA;


/***/ }),
/* 94 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var session_1 = __webpack_require__(95);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Utils_1 = __webpack_require__(83);
var Modifiers = tslib_1.__importStar(__webpack_require__(101));
var SessionDescriptionHandlerObserver_1 = __webpack_require__(102);
/* SessionDescriptionHandler
 * @class PeerConnection helper Class.
 * @param {SIP.Session} session
 * @param {Object} [options]
 */
var SessionDescriptionHandler = /** @class */ (function (_super) {
    tslib_1.__extends(SessionDescriptionHandler, _super);
    function SessionDescriptionHandler(logger, observer, options) {
        var _this = _super.call(this) || this;
        _this.type = Enums_1.TypeStrings.SessionDescriptionHandler;
        // TODO: Validate the options
        _this.options = options || {};
        _this.logger = logger;
        _this.observer = observer;
        _this.dtmfSender = undefined;
        _this.shouldAcquireMedia = true;
        _this.CONTENT_TYPE = "application/sdp";
        _this.C = {
            DIRECTION: {
                NULL: null,
                SENDRECV: "sendrecv",
                SENDONLY: "sendonly",
                RECVONLY: "recvonly",
                INACTIVE: "inactive"
            }
        };
        _this.logger.log("SessionDescriptionHandlerOptions: " + JSON.stringify(_this.options));
        _this.direction = _this.C.DIRECTION.NULL;
        _this.modifiers = _this.options.modifiers || [];
        if (!Array.isArray(_this.modifiers)) {
            _this.modifiers = [_this.modifiers];
        }
        _this.iceGatheringTimeout = false;
        _this.initPeerConnection(_this.options.peerConnectionOptions);
        _this.constraints = _this.checkAndDefaultConstraints(_this.options.constraints);
        return _this;
    }
    /**
     * @param {SIP.Session} session
     * @param {Object} [options]
     */
    SessionDescriptionHandler.defaultFactory = function (session, options) {
        var logger = (session instanceof session_1.Session) ?
            session.userAgent.getLogger("sip.sessionDescriptionHandler", session.id) :
            session.ua.getLogger("sip.invitecontext.sessionDescriptionHandler", session.id);
        var observer = new SessionDescriptionHandlerObserver_1.SessionDescriptionHandlerObserver(session, options);
        return new SessionDescriptionHandler(logger, observer, options);
    };
    // Functions the sesssion can use
    /**
     * Destructor
     */
    SessionDescriptionHandler.prototype.close = function () {
        this.logger.log("closing PeerConnection");
        // have to check signalingState since this.close() gets called multiple times
        if (this.peerConnection && this.peerConnection.signalingState !== "closed") {
            if (this.peerConnection.getSenders) {
                this.peerConnection.getSenders().forEach(function (sender) {
                    if (sender.track) {
                        sender.track.stop();
                    }
                });
            }
            else {
                this.logger.warn("Using getLocalStreams which is deprecated");
                this.peerConnection.getLocalStreams().forEach(function (stream) {
                    stream.getTracks().forEach(function (track) {
                        track.stop();
                    });
                });
            }
            if (this.peerConnection.getReceivers) {
                this.peerConnection.getReceivers().forEach(function (receiver) {
                    if (receiver.track) {
                        receiver.track.stop();
                    }
                });
            }
            else {
                this.logger.warn("Using getRemoteStreams which is deprecated");
                this.peerConnection.getRemoteStreams().forEach(function (stream) {
                    stream.getTracks().forEach(function (track) {
                        track.stop();
                    });
                });
            }
            this.resetIceGatheringComplete();
            this.peerConnection.close();
        }
    };
    /**
     * Gets the local description from the underlying media implementation
     * @param {Object} [options] Options object to be used by getDescription
     * @param {MediaStreamConstraints} [options.constraints] MediaStreamConstraints
     *   https://developer.mozilla.org/en-US/docs/Web/API/MediaStreamConstraints
     * @param {Object} [options.peerConnectionOptions] If this is set it will recreate the peer
     *   connection with the new options
     * @param {Array} [modifiers] Array with one time use description modifiers
     * @returns {Promise} Promise that resolves with the local description to be used for the session
     */
    SessionDescriptionHandler.prototype.getDescription = function (options, modifiers) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (modifiers === void 0) { modifiers = []; }
        if (options.peerConnectionOptions) {
            this.initPeerConnection(options.peerConnectionOptions);
        }
        // Merge passed constraints with saved constraints and save
        var newConstraints = Object.assign({}, this.constraints, options.constraints);
        newConstraints = this.checkAndDefaultConstraints(newConstraints);
        if (JSON.stringify(newConstraints) !== JSON.stringify(this.constraints)) {
            this.constraints = newConstraints;
            this.shouldAcquireMedia = true;
        }
        if (!Array.isArray(modifiers)) {
            modifiers = [modifiers];
        }
        modifiers = modifiers.concat(this.modifiers);
        return Promise.resolve().then(function () {
            if (_this.shouldAcquireMedia) {
                return _this.acquire(_this.constraints).then(function () {
                    _this.shouldAcquireMedia = false;
                });
            }
        }).then(function () { return _this.createOfferOrAnswer(options.RTCOfferOptions, modifiers); })
            .then(function (description) {
            if (description.sdp === undefined) {
                throw new Exceptions_1.Exceptions.SessionDescriptionHandlerError("getDescription", undefined, "SDP undefined");
            }
            _this.emit("getDescription", description);
            return {
                body: description.sdp,
                contentType: _this.CONTENT_TYPE
            };
        });
    };
    /**
     * Check if the Session Description Handler can handle the Content-Type described by a SIP Message
     * @param {String} contentType The content type that is in the SIP Message
     * @returns {boolean}
     */
    SessionDescriptionHandler.prototype.hasDescription = function (contentType) {
        return contentType === this.CONTENT_TYPE;
    };
    /**
     * The modifier that should be used when the session would like to place the call on hold
     * @param {String} [sdp] The description that will be modified
     * @returns {Promise} Promise that resolves with modified SDP
     */
    SessionDescriptionHandler.prototype.holdModifier = function (description) {
        if (!description.sdp) {
            return Promise.resolve(description);
        }
        if (!(/a=(sendrecv|sendonly|recvonly|inactive)/).test(description.sdp)) {
            description.sdp = description.sdp.replace(/(m=[^\r]*\r\n)/g, "$1a=sendonly\r\n");
        }
        else {
            description.sdp = description.sdp.replace(/a=sendrecv\r\n/g, "a=sendonly\r\n");
            description.sdp = description.sdp.replace(/a=recvonly\r\n/g, "a=inactive\r\n");
        }
        return Promise.resolve(description);
    };
    /**
     * Set the remote description to the underlying media implementation
     * @param {String} sessionDescription The description provided by a SIP message to be set on the media implementation
     * @param {Object} [options] Options object to be used by getDescription
     * @param {MediaStreamConstraints} [options.constraints] MediaStreamConstraints
     *   https://developer.mozilla.org/en-US/docs/Web/API/MediaStreamConstraints
     * @param {Object} [options.peerConnectionOptions] If this is set it will recreate the peer
     *   connection with the new options
     * @param {Array} [modifiers] Array with one time use description modifiers
     * @returns {Promise} Promise that resolves once the description is set
     */
    SessionDescriptionHandler.prototype.setDescription = function (sessionDescription, options, modifiers) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (modifiers === void 0) { modifiers = []; }
        if (options.peerConnectionOptions) {
            this.initPeerConnection(options.peerConnectionOptions);
        }
        if (!Array.isArray(modifiers)) {
            modifiers = [modifiers];
        }
        modifiers = modifiers.concat(this.modifiers);
        var description = {
            type: this.hasOffer("local") ? "answer" : "offer",
            sdp: sessionDescription
        };
        return Promise.resolve().then(function () {
            // Media should be acquired in getDescription unless we need to do it sooner for some reason (FF61+)
            if (_this.shouldAcquireMedia && _this.options.alwaysAcquireMediaFirst) {
                return _this.acquire(_this.constraints).then(function () {
                    _this.shouldAcquireMedia = false;
                });
            }
        }).then(function () { return Utils_1.Utils.reducePromises(modifiers, description); })
            .catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("setDescription", e, "The modifiers did not resolve successfully");
            _this.logger.error(error.message);
            _this.emit("peerConnection-setRemoteDescriptionFailed", error);
            throw error;
        }).then(function (modifiedDescription) {
            _this.emit("setDescription", modifiedDescription);
            return _this.peerConnection.setRemoteDescription(modifiedDescription);
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            // Check the original SDP for video, and ensure that we have want to do audio fallback
            if ((/^m=video.+$/gm).test(sessionDescription) && !options.disableAudioFallback) {
                // Do not try to audio fallback again
                options.disableAudioFallback = true;
                // Remove video first, then do the other modifiers
                return _this.setDescription(sessionDescription, options, [Modifiers.stripVideo].concat(modifiers));
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("setDescription", e);
            if (error.error) {
                _this.logger.error(error.error);
            }
            _this.emit("peerConnection-setRemoteDescriptionFailed", error);
            throw error;
        }).then(function () {
            if (_this.peerConnection.getReceivers) {
                _this.emit("setRemoteDescription", _this.peerConnection.getReceivers());
            }
            else {
                _this.emit("setRemoteDescription", _this.peerConnection.getRemoteStreams());
            }
            _this.emit("confirmed", _this);
        });
    };
    /**
     * Send DTMF via RTP (RFC 4733)
     * @param {String} tones A string containing DTMF digits
     * @param {Object} [options] Options object to be used by sendDtmf
     * @returns {boolean} true if DTMF send is successful, false otherwise
     */
    SessionDescriptionHandler.prototype.sendDtmf = function (tones, options) {
        if (options === void 0) { options = {}; }
        if (!this.dtmfSender && this.hasBrowserGetSenderSupport()) {
            var senders = this.peerConnection.getSenders();
            if (senders.length > 0) {
                this.dtmfSender = senders[0].dtmf;
            }
        }
        if (!this.dtmfSender && this.hasBrowserTrackSupport()) {
            var streams = this.peerConnection.getLocalStreams();
            if (streams.length > 0) {
                var audioTracks = streams[0].getAudioTracks();
                if (audioTracks.length > 0) {
                    this.dtmfSender = this.peerConnection.createDTMFSender(audioTracks[0]);
                }
            }
        }
        if (!this.dtmfSender) {
            return false;
        }
        try {
            this.dtmfSender.insertDTMF(tones, options.duration, options.interToneGap);
        }
        catch (e) {
            if (e.type === "InvalidStateError" || e.type === "InvalidCharacterError") {
                this.logger.error(e);
                return false;
            }
            else {
                throw e;
            }
        }
        this.logger.log("DTMF sent via RTP: " + tones.toString());
        return true;
    };
    /**
     * Get the direction of the session description
     * @returns {String} direction of the description
     */
    SessionDescriptionHandler.prototype.getDirection = function () {
        return this.direction;
    };
    SessionDescriptionHandler.prototype.on = function (name, callback) { return _super.prototype.on.call(this, name, callback); };
    SessionDescriptionHandler.prototype.getMediaStream = function (constraints) {
        return navigator.mediaDevices.getUserMedia(constraints);
    };
    // Internal functions
    SessionDescriptionHandler.prototype.createOfferOrAnswer = function (RTCOfferOptions, modifiers) {
        var _this = this;
        if (RTCOfferOptions === void 0) { RTCOfferOptions = {}; }
        if (modifiers === void 0) { modifiers = []; }
        var methodName = this.hasOffer("remote") ? "createAnswer" : "createOffer";
        var pc = this.peerConnection;
        this.logger.log(methodName);
        var method = this.hasOffer("remote") ? pc.createAnswer : pc.createOffer;
        return method.apply(pc, RTCOfferOptions).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("createOfferOrAnswer", e, "peerConnection-" + methodName + "Failed");
            _this.emit("peerConnection-" + methodName + "Failed", error);
            throw error;
        }).then(function (sdp) {
            return Utils_1.Utils.reducePromises(modifiers, _this.createRTCSessionDescriptionInit(sdp));
        }).then(function (sdp) {
            _this.resetIceGatheringComplete();
            _this.logger.log("Setting local sdp.");
            _this.logger.log("sdp is " + sdp.sdp || false);
            return pc.setLocalDescription(sdp);
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("createOfferOrAnswer", e, "peerConnection-SetLocalDescriptionFailed");
            _this.emit("peerConnection-SetLocalDescriptionFailed", error);
            throw error;
        }).then(function () { return _this.waitForIceGatheringComplete(); })
            .then(function () {
            if (!_this.peerConnection.localDescription) {
                throw new Exceptions_1.Exceptions.SessionDescriptionHandlerError("Missing local description");
            }
            var localDescription = _this.createRTCSessionDescriptionInit(_this.peerConnection.localDescription);
            return Utils_1.Utils.reducePromises(modifiers, localDescription);
        }).then(function (localDescription) {
            _this.setDirection(localDescription.sdp || "");
            return localDescription;
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("createOfferOrAnswer", e);
            _this.logger.error(error.toString());
            throw error;
        });
    };
    // Creates an RTCSessionDescriptionInit from an RTCSessionDescription
    SessionDescriptionHandler.prototype.createRTCSessionDescriptionInit = function (RTCSessionDescription) {
        return {
            type: RTCSessionDescription.type,
            sdp: RTCSessionDescription.sdp
        };
    };
    SessionDescriptionHandler.prototype.addDefaultIceCheckingTimeout = function (peerConnectionOptions) {
        if (peerConnectionOptions.iceCheckingTimeout === undefined) {
            peerConnectionOptions.iceCheckingTimeout = 5000;
        }
        return peerConnectionOptions;
    };
    SessionDescriptionHandler.prototype.addDefaultIceServers = function (rtcConfiguration) {
        if (!rtcConfiguration.iceServers) {
            rtcConfiguration.iceServers = [{ urls: "stun:stun.l.google.com:19302" }];
        }
        return rtcConfiguration;
    };
    SessionDescriptionHandler.prototype.checkAndDefaultConstraints = function (constraints) {
        var defaultConstraints = { audio: true, video: !this.options.alwaysAcquireMediaFirst };
        constraints = constraints || defaultConstraints;
        // Empty object check
        if (Object.keys(constraints).length === 0 && constraints.constructor === Object) {
            return defaultConstraints;
        }
        return constraints;
    };
    SessionDescriptionHandler.prototype.hasBrowserTrackSupport = function () {
        return Boolean(this.peerConnection.addTrack);
    };
    SessionDescriptionHandler.prototype.hasBrowserGetSenderSupport = function () {
        return Boolean(this.peerConnection.getSenders);
    };
    SessionDescriptionHandler.prototype.initPeerConnection = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        options = this.addDefaultIceCheckingTimeout(options);
        options.rtcConfiguration = options.rtcConfiguration || {};
        options.rtcConfiguration = this.addDefaultIceServers(options.rtcConfiguration);
        this.logger.log("initPeerConnection");
        if (this.peerConnection) {
            this.logger.log("Already have a peer connection for this session. Tearing down.");
            this.resetIceGatheringComplete();
            this.peerConnection.close();
        }
        this.peerConnection = new RTCPeerConnection(options.rtcConfiguration);
        this.logger.log("New peer connection created");
        if ("ontrack" in this.peerConnection) {
            this.peerConnection.addEventListener("track", function (e) {
                _this.logger.log("track added");
                _this.observer.trackAdded();
                _this.emit("addTrack", e);
            });
        }
        else {
            this.logger.warn("Using onaddstream which is deprecated");
            this.peerConnection.onaddstream = function (e) {
                _this.logger.log("stream added");
                _this.emit("addStream", e);
            };
        }
        this.peerConnection.onicecandidate = function (e) {
            _this.emit("iceCandidate", e);
            if (e.candidate) {
                _this.logger.log("ICE candidate received: " +
                    (e.candidate.candidate === null ? null : e.candidate.candidate.trim()));
            }
            else if (e.candidate === null) {
                // indicates the end of candidate gathering
                _this.logger.log("ICE candidate gathering complete");
                _this.triggerIceGatheringComplete();
            }
        };
        this.peerConnection.onicegatheringstatechange = function () {
            _this.logger.log("RTCIceGatheringState changed: " + _this.peerConnection.iceGatheringState);
            switch (_this.peerConnection.iceGatheringState) {
                case "gathering":
                    _this.emit("iceGathering", _this);
                    if (!_this.iceGatheringTimer && options.iceCheckingTimeout) {
                        _this.iceGatheringTimeout = false;
                        _this.iceGatheringTimer = setTimeout(function () {
                            _this.logger.log("RTCIceChecking Timeout Triggered after " + options.iceCheckingTimeout + " milliseconds");
                            _this.iceGatheringTimeout = true;
                            _this.triggerIceGatheringComplete();
                        }, options.iceCheckingTimeout);
                    }
                    break;
                case "complete":
                    _this.triggerIceGatheringComplete();
                    break;
            }
        };
        this.peerConnection.oniceconnectionstatechange = function () {
            var stateEvent;
            switch (_this.peerConnection.iceConnectionState) {
                case "new":
                    stateEvent = "iceConnection";
                    break;
                case "checking":
                    stateEvent = "iceConnectionChecking";
                    break;
                case "connected":
                    stateEvent = "iceConnectionConnected";
                    break;
                case "completed":
                    stateEvent = "iceConnectionCompleted";
                    break;
                case "failed":
                    stateEvent = "iceConnectionFailed";
                    break;
                case "disconnected":
                    stateEvent = "iceConnectionDisconnected";
                    break;
                case "closed":
                    stateEvent = "iceConnectionClosed";
                    break;
                default:
                    _this.logger.warn("Unknown iceConnection state: " + _this.peerConnection.iceConnectionState);
                    return;
            }
            _this.logger.log("ICE Connection State changed to " + stateEvent);
            _this.emit(stateEvent, _this);
        };
    };
    SessionDescriptionHandler.prototype.acquire = function (constraints) {
        var _this = this;
        // Default audio & video to true
        constraints = this.checkAndDefaultConstraints(constraints);
        return new Promise(function (resolve, reject) {
            /*
             * Make the call asynchronous, so that ICCs have a chance
             * to define callbacks to `userMediaRequest`
             */
            _this.logger.log("acquiring local media");
            _this.emit("userMediaRequest", constraints);
            if (constraints.audio || constraints.video) {
                _this.getMediaStream(constraints).then(function (streams) {
                    _this.observer.trackAdded();
                    _this.emit("userMedia", streams);
                    resolve(streams);
                }).catch(function (e) {
                    _this.emit("userMediaFailed", e);
                    reject(e);
                });
            }
            else {
                // Local streams were explicitly excluded.
                resolve([]);
            }
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("acquire", e, "unable to acquire streams");
            _this.logger.error(error.message);
            if (error.error) {
                _this.logger.error(error.error);
            }
            throw error;
        }).then(function (streams) {
            _this.logger.log("acquired local media streams");
            // Remove old tracks
            if (_this.peerConnection.removeTrack) {
                _this.peerConnection.getSenders().forEach(function (sender) {
                    _this.peerConnection.removeTrack(sender);
                });
            }
            return streams;
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("acquire", e, "error removing streams");
            _this.logger.error(error.message);
            if (error.error) {
                _this.logger.error(error.error);
            }
            throw error;
        }).then(function (streams) {
            var streamsArr = [].concat(streams);
            streamsArr.forEach(function (stream) {
                if (_this.peerConnection.addTrack) {
                    stream.getTracks().forEach(function (track) {
                        _this.peerConnection.addTrack(track, stream);
                    });
                }
                else {
                    // Chrome 59 does not support addTrack
                    _this.peerConnection.addStream(stream);
                }
            });
            return Promise.resolve();
        }).catch(function (e) {
            if (e.type === Enums_1.TypeStrings.SessionDescriptionHandlerError) {
                throw e;
            }
            var error = new Exceptions_1.Exceptions.SessionDescriptionHandlerError("acquire", e, "error adding stream");
            _this.logger.error(error.message);
            if (error.error) {
                _this.logger.error(error.error);
            }
            throw error;
        });
    };
    SessionDescriptionHandler.prototype.hasOffer = function (where) {
        var offerState = "have-" + where + "-offer";
        return this.peerConnection.signalingState === offerState;
    };
    // ICE gathering state handling
    SessionDescriptionHandler.prototype.isIceGatheringComplete = function () {
        return this.peerConnection.iceGatheringState === "complete" || this.iceGatheringTimeout;
    };
    SessionDescriptionHandler.prototype.resetIceGatheringComplete = function () {
        this.iceGatheringTimeout = false;
        this.logger.log("resetIceGatheringComplete");
        if (this.iceGatheringTimer) {
            clearTimeout(this.iceGatheringTimer);
            this.iceGatheringTimer = undefined;
        }
        if (this.iceGatheringDeferred) {
            this.iceGatheringDeferred.reject();
            this.iceGatheringDeferred = undefined;
        }
    };
    SessionDescriptionHandler.prototype.setDirection = function (sdp) {
        var match = sdp.match(/a=(sendrecv|sendonly|recvonly|inactive)/);
        if (match === null) {
            this.direction = this.C.DIRECTION.NULL;
            this.observer.directionChanged();
            return;
        }
        var direction = match[1];
        switch (direction) {
            case this.C.DIRECTION.SENDRECV:
            case this.C.DIRECTION.SENDONLY:
            case this.C.DIRECTION.RECVONLY:
            case this.C.DIRECTION.INACTIVE:
                this.direction = direction;
                break;
            default:
                this.direction = this.C.DIRECTION.NULL;
                break;
        }
        this.observer.directionChanged();
    };
    SessionDescriptionHandler.prototype.triggerIceGatheringComplete = function () {
        if (this.isIceGatheringComplete()) {
            this.emit("iceGatheringComplete", this);
            if (this.iceGatheringTimer) {
                clearTimeout(this.iceGatheringTimer);
                this.iceGatheringTimer = undefined;
            }
            if (this.iceGatheringDeferred) {
                this.iceGatheringDeferred.resolve();
                this.iceGatheringDeferred = undefined;
            }
        }
    };
    SessionDescriptionHandler.prototype.waitForIceGatheringComplete = function () {
        this.logger.log("waitForIceGatheringComplete");
        if (this.isIceGatheringComplete()) {
            this.logger.log("ICE is already complete. Return resolved.");
            return Promise.resolve();
        }
        else if (!this.iceGatheringDeferred) {
            this.iceGatheringDeferred = Utils_1.Utils.defer();
        }
        this.logger.log("ICE is not complete. Returning promise");
        return this.iceGatheringDeferred ? this.iceGatheringDeferred.promise : Promise.resolve();
    };
    return SessionDescriptionHandler;
}(events_1.EventEmitter));
exports.SessionDescriptionHandler = SessionDescriptionHandler;


/***/ }),
/* 95 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var Constants_1 = __webpack_require__(80);
var core_1 = __webpack_require__(2);
var allowed_methods_1 = __webpack_require__(58);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Utils_1 = __webpack_require__(83);
var emitter_1 = __webpack_require__(96);
var info_1 = __webpack_require__(97);
var notification_1 = __webpack_require__(98);
var referral_1 = __webpack_require__(99);
var session_state_1 = __webpack_require__(100);
/**
 * A session provides real time communication between one or more participants.
 * @public
 */
var Session = /** @class */ (function (_super) {
    tslib_1.__extends(Session, _super);
    /**
     * Constructor.
     * @param userAgent - User agent. See {@link UserAgent} for details.
     * @internal
     */
    function Session(userAgent, options) {
        if (options === void 0) { options = {}; }
        var _this = _super.call(this) || this;
        // Property overlap with ClientContext & ServerContext Interfaces
        /** @internal */
        _this.type = Enums_1.TypeStrings.Session;
        /** @internal */
        _this.method = Constants_1.C.INVITE;
        /** @internal */
        _this.localHold = false;
        /** DEPRECATED: Session status */
        /** @internal */
        _this.status = Enums_1.SessionStatus.STATUS_NULL;
        /** True if an error caused session termination. */
        /** @internal */
        _this.isFailed = false;
        /** @internal */
        _this.rel100 = Constants_1.C.supported.UNSUPPORTED;
        /** @internal */
        _this.expiresTimer = undefined;
        /** @internal */
        _this.userNoAnswerTimer = undefined;
        _this._state = session_state_1.SessionState.Initial;
        _this._stateEventEmitter = new events_1.EventEmitter();
        _this.pendingReinvite = false;
        _this.tones = undefined;
        _this.userAgent = userAgent;
        _this.delegate = options.delegate;
        _this.logger = userAgent.getLogger("sip.session");
        return _this;
    }
    /**
     * Called to cleanup session after terminated.
     * @internal
     */
    Session.prototype.close = function () {
        this.logger.log("Session[" + this.id + "].close");
        if (this.status === Enums_1.SessionStatus.STATUS_TERMINATED) {
            return;
        }
        // 1st Step. Terminate media.
        if (this._sessionDescriptionHandler) {
            this._sessionDescriptionHandler.close();
        }
        // 2nd Step. Terminate signaling.
        // Clear session timers
        if (this.expiresTimer) {
            clearTimeout(this.expiresTimer);
        }
        if (this.userNoAnswerTimer) {
            clearTimeout(this.userNoAnswerTimer);
        }
        this.status = Enums_1.SessionStatus.STATUS_TERMINATED;
        if (!this.id) {
            throw new Error("Session id undefined.");
        }
        delete this.userAgent.sessions[this.id];
        return;
    };
    /**
     * @deprecated Legacy state transition.
     * @internal
     */
    Session.prototype.on = function (name, callback) {
        return _super.prototype.on.call(this, name, callback);
    };
    /**
     * @deprecated Legacy state transition.
     * @internal
     */
    Session.prototype.emit = function (event) {
        var args = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            args[_i - 1] = arguments[_i];
        }
        return _super.prototype.emit.apply(this, tslib_1.__spreadArrays([event], args));
    };
    Object.defineProperty(Session.prototype, "sessionDescriptionHandler", {
        /**
         * Session description handler.
         */
        get: function () {
            return this._sessionDescriptionHandler;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Session.prototype, "sessionDescriptionHandlerFactory", {
        /**
         * Session description handler factory.
         */
        get: function () {
            return this.userAgent.configuration.sessionDescriptionHandlerFactory;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Session.prototype, "state", {
        /**
         * Session state.
         */
        get: function () {
            return this._state;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Session.prototype, "stateChange", {
        /**
         * Session state change emitter.
         */
        get: function () {
            return emitter_1.makeEmitter(this._stateEventEmitter);
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Renegotiate the session. Sends a re-INVITE.
     * @param options - Options bucket.
     */
    Session.prototype.invite = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        this.logger.log("Session.invite");
        if (this.state !== session_state_1.SessionState.Established) {
            return Promise.reject(new Error("Invalid session state " + this.state));
        }
        if (this.pendingReinvite) {
            return Promise.reject(new Error("Reinvite in progress. Please wait until complete, then try again."));
        }
        if (!this._sessionDescriptionHandler) {
            throw new Error("Session description handler undefined.");
        }
        this.pendingReinvite = true;
        var delegate = {
            onAccept: function (response) {
                // A re-INVITE transaction has an offer/answer [RFC3264] exchange
                // associated with it.  The UAC (User Agent Client) generating a given
                // re-INVITE can act as the offerer or as the answerer.  A UAC willing
                // to act as the offerer includes an offer in the re-INVITE.  The UAS
                // (User Agent Server) then provides an answer in a response to the
                // re-INVITE.  A UAC willing to act as answerer does not include an
                // offer in the re-INVITE.  The UAS then provides an offer in a response
                // to the re-INVITE becoming, thus, the offerer.
                // https://tools.ietf.org/html/rfc6141#section-1
                var body = core_1.getBody(response.message);
                if (!body) {
                    // No way to recover, so terminate session and mark as failed.
                    _this.logger.error("Received 2xx response to re-INVITE without a session description");
                    _this.ackAndBye(response, 400, "Missing session description");
                    _this.stateTransition(session_state_1.SessionState.Terminated);
                    _this.isFailed = true;
                    _this.pendingReinvite = false;
                    return;
                }
                if (options.withoutSdp) {
                    // INVITE without SDP - set remote offer and send an answer in the ACK
                    // FIXME: SDH options & SDH modifiers options are applied somewhat ambiguously
                    //        This behavior was ported from legacy code and the issue punted down the road.
                    var answerOptions = {
                        sessionDescriptionHandlerOptions: options.sessionDescriptionHandlerOptions,
                        sessionDescriptionHandlerModifiers: options.sessionDescriptionHandlerModifiers
                    };
                    _this.setOfferAndGetAnswer(body, answerOptions)
                        .then(function (answerBody) {
                        response.ack({ body: answerBody });
                    })
                        .catch(function (error) {
                        // No way to recover, so terminate session and mark as failed.
                        _this.logger.error("Failed to handle offer in 2xx response to re-INVITE");
                        _this.logger.error(error.message);
                        if (_this.state === session_state_1.SessionState.Terminated) {
                            // A BYE should not be sent if alreadly terminated.
                            // For example, a BYE may be sent/received while re-INVITE is outstanding.
                            response.ack();
                        }
                        else {
                            _this.ackAndBye(response, 488, "Bad Media Description");
                            _this.stateTransition(session_state_1.SessionState.Terminated);
                            _this.isFailed = true;
                        }
                    })
                        .then(function () {
                        _this.pendingReinvite = false;
                        if (options.requestDelegate && options.requestDelegate.onAccept) {
                            options.requestDelegate.onAccept(response);
                        }
                    });
                }
                else {
                    // INVITE with SDP - set remote answer and send an ACK
                    // FIXME: SDH options & SDH modifiers options are applied somewhat ambiguously
                    //        This behavior was ported from legacy code and the issue punted down the road.
                    var answerOptions = {
                        sessionDescriptionHandlerOptions: _this.sessionDescriptionHandlerOptions,
                        sessionDescriptionHandlerModifiers: _this.sessionDescriptionHandlerModifiers
                    };
                    _this.setAnswer(body, answerOptions)
                        .then(function () {
                        response.ack();
                    })
                        .catch(function (error) {
                        // No way to recover, so terminate session and mark as failed.
                        _this.logger.error("Failed to handle answer in 2xx response to re-INVITE");
                        _this.logger.error(error.message);
                        // A BYE should only be sent if session is not alreadly terminated.
                        // For example, a BYE may be sent/received while re-INVITE is outstanding.
                        // The ACK needs to be sent regardless as it was not handled by the transaction.
                        if (_this.state !== session_state_1.SessionState.Terminated) {
                            _this.ackAndBye(response, 488, "Bad Media Description");
                            _this.stateTransition(session_state_1.SessionState.Terminated);
                            _this.isFailed = true;
                        }
                        else {
                            response.ack();
                        }
                    })
                        .then(function () {
                        _this.pendingReinvite = false;
                        if (options.requestDelegate && options.requestDelegate.onAccept) {
                            options.requestDelegate.onAccept(response);
                        }
                    });
                }
            },
            onProgress: function (response) {
                return;
            },
            onRedirect: function (response) {
                return;
            },
            onReject: function (response) {
                _this.logger.warn("Received a non-2xx response to re-INVITE");
                _this.pendingReinvite = false;
                if (options.withoutSdp) {
                    if (options.requestDelegate && options.requestDelegate.onReject) {
                        options.requestDelegate.onReject(response);
                    }
                }
                else {
                    _this.rollbackOffer()
                        .catch(function (error) {
                        // No way to recover, so terminate session and mark as failed.
                        _this.logger.error("Failed to rollback offer on non-2xx response to re-INVITE");
                        _this.logger.error(error.message);
                        // A BYE should only be sent if session is not alreadly terminated.
                        // For example, a BYE may be sent/received while re-INVITE is outstanding.
                        // Note that the ACK was already sent by the transaction, so just need to send BYE.
                        if (_this.state !== session_state_1.SessionState.Terminated) {
                            if (!_this.dialog) {
                                throw new Error("Dialog undefined.");
                            }
                            var extraHeaders = [];
                            extraHeaders.push("Reason: " + Utils_1.Utils.getReasonHeaderValue(500, "Internal Server Error"));
                            _this.dialog.bye(undefined, { extraHeaders: extraHeaders });
                            _this.stateTransition(session_state_1.SessionState.Terminated);
                            _this.isFailed = true;
                        }
                    })
                        .then(function () {
                        if (options.requestDelegate && options.requestDelegate.onReject) {
                            options.requestDelegate.onReject(response);
                        }
                    });
                }
            },
            onTrying: function (response) {
                return;
            }
        };
        var requestOptions = options.requestOptions || {};
        requestOptions.extraHeaders = (requestOptions.extraHeaders || []).slice();
        requestOptions.extraHeaders.push("Allow: " + allowed_methods_1.AllowedMethods.toString());
        requestOptions.extraHeaders.push("Contact: " + this.contact);
        // Just send an INVITE with no sdp...
        if (options.withoutSdp) {
            if (!this.dialog) {
                this.pendingReinvite = false;
                return Promise.reject(new Error("Dialog undefined."));
            }
            return Promise.resolve(this.dialog.invite(delegate, requestOptions));
        }
        // Get an offer and send it in an INVITE
        // FIXME: SDH options & SDH modifiers options are applied somewhat ambiguously
        //        This behavior was ported from legacy code and the issue punted down the road.
        var offerOptions = {
            sessionDescriptionHandlerOptions: options.sessionDescriptionHandlerOptions,
            sessionDescriptionHandlerModifiers: options.sessionDescriptionHandlerModifiers
        };
        return this.getOffer(offerOptions)
            .then(function (offerBody) {
            if (!_this.dialog) {
                _this.pendingReinvite = false;
                throw new Error("Dialog undefined.");
            }
            requestOptions.body = offerBody;
            return _this.dialog.invite(delegate, requestOptions);
        })
            .catch(function (error) {
            _this.logger.error(error.message);
            _this.logger.error("Failed to send re-INVITE");
            _this.pendingReinvite = false;
            throw error;
        });
    };
    /**
     * Send BYE.
     * @param delegate - Request delegate.
     * @param options - Request options bucket.
     * @internal
     */
    Session.prototype.bye = function (delegate, options) {
        var _this = this;
        // Using core session dialog
        if (!this.dialog) {
            return Promise.reject(new Error("Session dialog undefined."));
        }
        var dialog = this.dialog;
        // The caller's UA MAY send a BYE for either confirmed or early dialogs,
        // and the callee's UA MAY send a BYE on confirmed dialogs, but MUST NOT
        // send a BYE on early dialogs. However, the callee's UA MUST NOT send a
        // BYE on a confirmed dialog until it has received an ACK for its 2xx
        // response or until the server transaction times out.
        // https://tools.ietf.org/html/rfc3261#section-15
        switch (dialog.sessionState) {
            case core_1.SessionState.Initial:
                throw new Error("Invalid dialog state " + dialog.sessionState);
            case core_1.SessionState.Early: // Implementation choice - not sending BYE for early dialogs.
                throw new Error("Invalid dialog state " + dialog.sessionState);
            case core_1.SessionState.AckWait: { // This state only occurs if we are the callee.
                this.stateTransition(session_state_1.SessionState.Terminating); // We're terminating
                return new Promise(function (resolve, reject) {
                    dialog.delegate = {
                        // When ACK shows up, say BYE.
                        onAck: function () {
                            var request = dialog.bye(delegate, options);
                            _this.stateTransition(session_state_1.SessionState.Terminated);
                            resolve(request);
                        },
                        // Or the server transaction times out before the ACK arrives.
                        onAckTimeout: function () {
                            var request = dialog.bye(delegate, options);
                            _this.stateTransition(session_state_1.SessionState.Terminated);
                            resolve(request);
                        }
                    };
                });
            }
            case core_1.SessionState.Confirmed: {
                var request = dialog.bye(delegate, options);
                this.stateTransition(session_state_1.SessionState.Terminated);
                return Promise.resolve(request);
            }
            case core_1.SessionState.Terminated:
                throw new Error("Invalid dialog state " + dialog.sessionState);
            default:
                throw new Error("Unrecognized state.");
        }
    };
    /**
     * Send INFO.
     * @param delegate - Request delegate.
     * @param options - Request options bucket.
     * @internal
     */
    Session.prototype.info = function (delegate, options) {
        // Using core session dialog
        if (!this.dialog) {
            return Promise.reject(new Error("Session dialog undefined."));
        }
        return Promise.resolve(this.dialog.info(delegate, options));
    };
    /**
     * Send REFER.
     * @param referrer - Referrer.
     * @param delegate - Request delegate.
     * @param options - Request options bucket.
     * @internal
     */
    Session.prototype.refer = function (referrer, delegate, options) {
        // Using core session dialog
        if (!this.dialog) {
            return Promise.reject(new Error("Session dialog undefined."));
        }
        // If the session has a referrer, it will receive any in-dialog NOTIFY requests.
        this.referrer = referrer;
        return Promise.resolve(this.dialog.refer(delegate, options));
    };
    /**
     * Send ACK and then BYE. There are unrecoverable errors which can occur
     * while handling dialog forming and in-dialog INVITE responses and when
     * they occur we ACK the response and send a BYE.
     * Note that the BYE is sent in the dialog associated with the response
     * which is not necessarily `this.dialog`. And, accordingly, the
     * session state is not transitioned to terminated and session is not closed.
     * @param inviteResponse - The response causing the error.
     * @param statusCode - Status code for he reason phrase.
     * @param reasonPhrase - Reason phrase for the BYE.
     * @internal
     */
    Session.prototype.ackAndBye = function (response, statusCode, reasonPhrase) {
        response.ack();
        var extraHeaders = [];
        if (statusCode) {
            extraHeaders.push("Reason: " + Utils_1.Utils.getReasonHeaderValue(statusCode, reasonPhrase));
        }
        // Using the dialog session associate with the response (which might not be this.dialog)
        response.session.bye(undefined, { extraHeaders: extraHeaders });
    };
    /**
     * Handle in dialog ACK request.
     * @internal
     */
    Session.prototype.onAckRequest = function (request) {
        var _this = this;
        this.logger.log("Session.onAckRequest");
        if (this.state !== session_state_1.SessionState.Initial &&
            this.state !== session_state_1.SessionState.Establishing &&
            this.state !== session_state_1.SessionState.Established &&
            this.state !== session_state_1.SessionState.Terminating) {
            this.logger.error("ACK received while in state " + this.state + ", dropping request");
            return;
        }
        // FIXME: Review is this ever true? We're "Established" when dialog created in accept().
        if (this.state === session_state_1.SessionState.Initial || this.state === session_state_1.SessionState.Establishing) {
            this.stateTransition(session_state_1.SessionState.Established);
        }
        var dialog = this.dialog;
        if (!dialog) {
            throw new Error("Dialog undefined.");
        }
        switch (dialog.signalingState) {
            case core_1.SignalingState.Initial: {
                // State should never be reached as first reliable response must have answer/offer.
                // So we must have never has sent an offer.
                this.logger.error("Invalid signaling state " + dialog.signalingState + ".");
                this.isFailed = true;
                var extraHeaders = ["Reason: " + Utils_1.Utils.getReasonHeaderValue(488, "Bad Media Description")];
                dialog.bye(undefined, { extraHeaders: extraHeaders });
                this.stateTransition(session_state_1.SessionState.Terminated);
                return;
            }
            case core_1.SignalingState.Stable: {
                // State we should be in.
                // Either the ACK has the answer that got us here, or we were in this state prior to the ACK.
                var body = core_1.getBody(request.message);
                // If the ACK doesn't have an answer, nothing to be done.
                if (!body) {
                    this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                    return;
                }
                if (body.contentDisposition === "render") {
                    this.renderbody = body.content;
                    this.rendertype = body.contentType;
                    this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                    return;
                }
                if (body.contentDisposition !== "session") {
                    this.status = Enums_1.SessionStatus.STATUS_CONFIRMED;
                    return;
                }
                // Receved answer in ACK.
                var options = {
                    sessionDescriptionHandlerOptions: this.sessionDescriptionHandlerOptions,
                    sessionDescriptionHandlerModifiers: this.sessionDescriptionHandlerModifiers
                };
                this.setAnswer(body, options)
                    .then(function () { _this.status = Enums_1.SessionStatus.STATUS_CONFIRMED; })
                    .catch(function (error) {
                    _this.logger.error(error.message);
                    _this.isFailed = true;
                    var extraHeaders = ["Reason: " + Utils_1.Utils.getReasonHeaderValue(488, "Bad Media Description")];
                    dialog.bye(undefined, { extraHeaders: extraHeaders });
                    _this.stateTransition(session_state_1.SessionState.Terminated);
                });
                return;
            }
            case core_1.SignalingState.HaveLocalOffer: {
                // State should never be reached as local offer would be answered by this ACK.
                // So we must have received an ACK without an answer.
                this.logger.error("Invalid signaling state " + dialog.signalingState + ".");
                this.isFailed = true;
                var extraHeaders = ["Reason: " + Utils_1.Utils.getReasonHeaderValue(488, "Bad Media Description")];
                dialog.bye(undefined, { extraHeaders: extraHeaders });
                this.stateTransition(session_state_1.SessionState.Terminated);
                return;
            }
            case core_1.SignalingState.HaveRemoteOffer: {
                // State should never be reached as remote offer would be answered in first reliable response.
                // So we must have never has sent an answer.
                this.logger.error("Invalid signaling state " + dialog.signalingState + ".");
                this.isFailed = true;
                var extraHeaders = ["Reason: " + Utils_1.Utils.getReasonHeaderValue(488, "Bad Media Description")];
                dialog.bye(undefined, { extraHeaders: extraHeaders });
                this.stateTransition(session_state_1.SessionState.Terminated);
                return;
            }
            case core_1.SignalingState.Closed:
                throw new Error("Invalid signaling state " + dialog.signalingState + ".");
            default:
                throw new Error("Invalid signaling state " + dialog.signalingState + ".");
        }
    };
    /**
     * Handle in dialog BYE request.
     * @internal
     */
    Session.prototype.onByeRequest = function (request) {
        this.logger.log("Session.onByeRequest");
        if (this.state !== session_state_1.SessionState.Established) {
            this.logger.error("BYE received while in state " + this.state + ", dropping request");
            return;
        }
        request.accept();
        this.stateTransition(session_state_1.SessionState.Terminated);
    };
    /**
     * Handle in dialog INFO request.
     * @internal
     */
    Session.prototype.onInfoRequest = function (request) {
        this.logger.log("Session.onInfoRequest");
        if (this.state !== session_state_1.SessionState.Established) {
            this.logger.error("INFO received while in state " + this.state + ", dropping request");
            return;
        }
        if (this.delegate && this.delegate.onInfo) {
            var info = new info_1.Info(request);
            this.delegate.onInfo(info);
        }
        else {
            request.accept();
        }
    };
    /**
     * Handle in dialog INVITE request.
     * @internal
     */
    Session.prototype.onInviteRequest = function (request) {
        var _this = this;
        this.logger.log("Session.onInviteRequest");
        if (this.state !== session_state_1.SessionState.Established) {
            this.logger.error("INVITE received while in state " + this.state + ", dropping request");
            return;
        }
        // TODO: would be nice to have core track and set the Contact header,
        // but currently the session which is setting it is holding onto it.
        var extraHeaders = ["Contact: " + this.contact];
        // Handle P-Asserted-Identity
        if (request.message.hasHeader("P-Asserted-Identity")) {
            var header = request.message.getHeader("P-Asserted-Identity");
            if (!header) {
                throw new Error("Header undefined.");
            }
            this.assertedIdentity = core_1.Grammar.nameAddrHeaderParse(header);
        }
        // FIXME: SDH options & SDH modifiers options are applied somewhat ambiguously
        //        This behavior was ported from legacy code and the issue punted down the road.
        var options = {
            sessionDescriptionHandlerOptions: this.sessionDescriptionHandlerOptions,
            sessionDescriptionHandlerModifiers: this.sessionDescriptionHandlerModifiers
        };
        this.generateResponseOfferAnswerInDialog(options)
            .then(function (body) {
            var outgoingResponse = request.accept({ statusCode: 200, extraHeaders: extraHeaders, body: body });
            if (_this.delegate && _this.delegate.onInvite) {
                _this.delegate.onInvite(request.message, outgoingResponse.message, 200);
            }
        })
            .catch(function (error) {
            _this.logger.error(error.message);
            _this.logger.error("Failed to handle to re-INVITE request");
            if (!_this.dialog) {
                throw new Error("Dialog undefined.");
            }
            _this.logger.error(_this.dialog.signalingState);
            // If we don't have a local/remote offer...
            if (_this.dialog.signalingState === core_1.SignalingState.Stable) {
                var outgoingResponse = request.reject({ statusCode: 488 }); // Not Acceptable Here
                if (_this.delegate && _this.delegate.onInvite) {
                    _this.delegate.onInvite(request.message, outgoingResponse.message, 488);
                }
                return;
            }
            // Otherwise rollback
            _this.rollbackOffer()
                .then(function () {
                var outgoingResponse = request.reject({ statusCode: 488 }); // Not Acceptable Here
                if (_this.delegate && _this.delegate.onInvite) {
                    _this.delegate.onInvite(request.message, outgoingResponse.message, 488);
                }
            })
                .catch(function (errorRollback) {
                // No way to recover, so terminate session and mark as failed.
                _this.logger.error(errorRollback.message);
                _this.logger.error("Failed to rollback offer on re-INVITE request");
                var outgoingResponse = request.reject({ statusCode: 488 }); // Not Acceptable Here
                // A BYE should only be sent if session is not alreadly terminated.
                // For example, a BYE may be sent/received while re-INVITE is outstanding.
                // Note that the ACK was already sent by the transaction, so just need to send BYE.
                if (_this.state !== session_state_1.SessionState.Terminated) {
                    if (!_this.dialog) {
                        throw new Error("Dialog undefined.");
                    }
                    var extraHeadersBye = [];
                    extraHeadersBye.push("Reason: " + Utils_1.Utils.getReasonHeaderValue(500, "Internal Server Error"));
                    _this.dialog.bye(undefined, { extraHeaders: extraHeaders });
                    _this.stateTransition(session_state_1.SessionState.Terminated);
                    _this.isFailed = true;
                }
                if (_this.delegate && _this.delegate.onInvite) {
                    _this.delegate.onInvite(request.message, outgoingResponse.message, 488);
                }
            });
        });
    };
    /**
     * Handle in dialog NOTIFY request.
     * @internal
     */
    Session.prototype.onNotifyRequest = function (request) {
        this.logger.log("Session.onNotifyRequest");
        if (this.state !== session_state_1.SessionState.Established) {
            this.logger.error("NOTIFY received while in state " + this.state + ", dropping request");
            return;
        }
        // If this a NOTIFY associated with the progress of a REFER,
        // look to delegate handling to the associated Referrer.
        if (this.referrer && this.referrer.delegate && this.referrer.delegate.onNotify) {
            var notification = new notification_1.Notification(request);
            this.referrer.delegate.onNotify(notification);
            return;
        }
        // Otherwise accept the NOTIFY.
        if (this.delegate && this.delegate.onNotify) {
            var notification = new notification_1.Notification(request);
            this.delegate.onNotify(notification);
        }
        else {
            request.accept();
        }
    };
    /**
     * Handle in dialog PRACK request.
     * @internal
     */
    Session.prototype.onPrackRequest = function (request) {
        this.logger.log("Session.onPrackRequest");
        if (this.state !== session_state_1.SessionState.Established) {
            this.logger.error("PRACK received while in state " + this.state + ", dropping request");
            return;
        }
        throw new Error("Unimplemented.");
    };
    /**
     * Handle in dialog REFER request.
     * @internal
     */
    Session.prototype.onReferRequest = function (request) {
        var _this = this;
        this.logger.log("Session.onReferRequest");
        if (this.state !== session_state_1.SessionState.Established) {
            this.logger.error("REFER received while in state " + this.state + ", dropping request");
            return;
        }
        if (this.status === Enums_1.SessionStatus.STATUS_CONFIRMED) {
            // RFC 3515 2.4.1
            if (!request.message.hasHeader("refer-to")) {
                this.logger.warn("Invalid REFER packet. A refer-to header is required. Rejecting.");
                request.reject();
                return;
            }
            var referral_2 = new referral_1.Referral(request, this);
            if (this.delegate && this.delegate.onRefer) {
                this.delegate.onRefer(referral_2);
            }
            else {
                this.logger.log("No delegate available to handle REFER, automatically accepting and following.");
                referral_2
                    .accept()
                    .then(function () { return referral_2
                    .makeInviter(_this.passedOptions)
                    .invite(); })
                    .catch(function (error) {
                    // FIXME: logging and eating error...
                    _this.logger.error(error.message);
                });
            }
        }
    };
    /**
     * Generate an offer or answer for a response to an INVITE request.
     * If a remote offer was provided in the request, set the remote
     * description and get a local answer. If a remote offer was not
     * provided, generates a local offer.
     * @internal
     */
    Session.prototype.generateResponseOfferAnswer = function (request, options) {
        if (this.dialog) {
            return this.generateResponseOfferAnswerInDialog(options);
        }
        var body = core_1.getBody(request.message);
        if (!body || body.contentDisposition !== "session") {
            return this.getOffer(options);
        }
        else {
            return this.setOfferAndGetAnswer(body, options);
        }
    };
    /**
     * Generate an offer or answer for a response to an INVITE request
     * when a dialog (early or otherwise) has already been established.
     * This method may NOT be called if a dialog has yet to be established.
     * @internal
     */
    Session.prototype.generateResponseOfferAnswerInDialog = function (options) {
        if (!this.dialog) {
            throw new Error("Dialog undefined.");
        }
        switch (this.dialog.signalingState) {
            case core_1.SignalingState.Initial:
                return this.getOffer(options);
            case core_1.SignalingState.HaveLocalOffer:
                // o  Once the UAS has sent or received an answer to the initial
                // offer, it MUST NOT generate subsequent offers in any responses
                // to the initial INVITE.  This means that a UAS based on this
                // specification alone can never generate subsequent offers until
                // completion of the initial transaction.
                // https://tools.ietf.org/html/rfc3261#section-13.2.1
                return Promise.resolve(undefined);
            case core_1.SignalingState.HaveRemoteOffer:
                if (!this.dialog.offer) {
                    throw new Error("Session offer undefined in signaling state " + this.dialog.signalingState + ".");
                }
                return this.setOfferAndGetAnswer(this.dialog.offer, options);
            case core_1.SignalingState.Stable:
                // o  Once the UAS has sent or received an answer to the initial
                // offer, it MUST NOT generate subsequent offers in any responses
                // to the initial INVITE.  This means that a UAS based on this
                // specification alone can never generate subsequent offers until
                // completion of the initial transaction.
                // https://tools.ietf.org/html/rfc3261#section-13.2.1
                if (this.state !== session_state_1.SessionState.Established) {
                    return Promise.resolve(undefined);
                }
                // In dialog INVITE without offer, get an offer for the response.
                return this.getOffer(options);
            case core_1.SignalingState.Closed:
                throw new Error("Invalid signaling state " + this.dialog.signalingState + ".");
            default:
                throw new Error("Invalid signaling state " + this.dialog.signalingState + ".");
        }
    };
    /**
     * Get local offer.
     * @internal
     */
    Session.prototype.getOffer = function (options) {
        var _this = this;
        var sdh = this.setupSessionDescriptionHandler();
        var sdhOptions = options.sessionDescriptionHandlerOptions;
        var sdhModifiers = options.sessionDescriptionHandlerModifiers;
        // This is intentionally written very defensively. Don't trust SDH to behave.
        try {
            return sdh.getDescription(sdhOptions, sdhModifiers)
                .then(function (bodyAndContentType) { return Utils_1.Utils.fromBodyObj(bodyAndContentType); })
                .catch(function (error) {
                _this.logger.error("Session.getOffer: SDH getDescription rejected...");
                var e = error instanceof Error ? error : new Error(error);
                _this.logger.error(e.message);
                throw e;
            });
        }
        catch (error) { // don't trust SDH to throw an Error
            this.logger.error("Session.getOffer: SDH getDescription threw...");
            var e = error instanceof Error ? error : new Error(error);
            this.logger.error(e.message);
            return Promise.reject(e);
        }
    };
    /**
     * Rollback local/remote offer.
     * @internal
     */
    Session.prototype.rollbackOffer = function () {
        var _this = this;
        var sdh = this.setupSessionDescriptionHandler();
        if (!sdh.rollbackDescription) {
            return Promise.resolve();
        }
        // This is intentionally written very defensively. Don't trust SDH to behave.
        try {
            return sdh.rollbackDescription()
                .catch(function (error) {
                _this.logger.error("Session.rollbackOffer: SDH rollbackDescription rejected...");
                var e = error instanceof Error ? error : new Error(error);
                _this.logger.error(e.message);
                throw e;
            });
        }
        catch (error) { // don't trust SDH to throw an Error
            this.logger.error("Session.rollbackOffer: SDH rollbackDescription threw...");
            var e = error instanceof Error ? error : new Error(error);
            this.logger.error(e.message);
            return Promise.reject(e);
        }
    };
    /**
     * Set remote answer.
     * @internal
     */
    Session.prototype.setAnswer = function (answer, options) {
        var _this = this;
        var sdh = this.setupSessionDescriptionHandler();
        var sdhOptions = options.sessionDescriptionHandlerOptions;
        var sdhModifiers = options.sessionDescriptionHandlerModifiers;
        // This is intentionally written very defensively. Don't trust SDH to behave.
        try {
            if (!sdh.hasDescription(answer.contentType)) {
                return Promise.reject(new Exceptions_1.Exceptions.UnsupportedSessionDescriptionContentTypeError());
            }
        }
        catch (error) {
            this.logger.error("Session.setAnswer: SDH hasDescription threw...");
            var e = error instanceof Error ? error : new Error(error);
            this.logger.error(e.message);
            return Promise.reject(e);
        }
        try {
            return sdh.setDescription(answer.content, sdhOptions, sdhModifiers)
                .catch(function (error) {
                _this.logger.error("Session.setAnswer: SDH setDescription rejected...");
                var e = error instanceof Error ? error : new Error(error);
                _this.logger.error(e.message);
                throw e;
            });
        }
        catch (error) { // don't trust SDH to throw an Error
            this.logger.error("Session.setAnswer: SDH setDescription threw...");
            var e = error instanceof Error ? error : new Error(error);
            this.logger.error(e.message);
            return Promise.reject(e);
        }
    };
    /**
     * Set remote offer and get local answer.
     * @internal
     */
    Session.prototype.setOfferAndGetAnswer = function (offer, options) {
        var _this = this;
        var sdh = this.setupSessionDescriptionHandler();
        var sdhOptions = options.sessionDescriptionHandlerOptions;
        var sdhModifiers = options.sessionDescriptionHandlerModifiers;
        // This is intentionally written very defensively. Don't trust SDH to behave.
        try {
            if (!sdh.hasDescription(offer.contentType)) {
                return Promise.reject(new Exceptions_1.Exceptions.UnsupportedSessionDescriptionContentTypeError());
            }
        }
        catch (error) {
            this.logger.error("Session.setOfferAndGetAnswer: SDH hasDescription threw...");
            var e = error instanceof Error ? error : new Error(error);
            this.logger.error(e.message);
            return Promise.reject(e);
        }
        try {
            return sdh.setDescription(offer.content, sdhOptions, sdhModifiers)
                .then(function () { return sdh.getDescription(sdhOptions, sdhModifiers); })
                .then(function (bodyAndContentType) { return Utils_1.Utils.fromBodyObj(bodyAndContentType); })
                .catch(function (error) {
                _this.logger.error("Session.setOfferAndGetAnswer: SDH setDescription or getDescription rejected...");
                var e = error instanceof Error ? error : new Error(error);
                _this.logger.error(e.message);
                throw e;
            });
        }
        catch (error) { // don't trust SDH to throw an Error
            this.logger.error("Session.setOfferAndGetAnswer: SDH setDescription or getDescription threw...");
            var e = error instanceof Error ? error : new Error(error);
            this.logger.error(e.message);
            return Promise.reject(e);
        }
    };
    /**
     * SDH for confirmed dialog.
     * @internal
     */
    Session.prototype.setSessionDescriptionHandler = function (sdh) {
        if (this._sessionDescriptionHandler) {
            throw new Error("Sessionn description handler defined.");
        }
        this._sessionDescriptionHandler = sdh;
    };
    /**
     * SDH for confirmed dialog.
     * @internal
     */
    Session.prototype.setupSessionDescriptionHandler = function () {
        if (this._sessionDescriptionHandler) {
            return this._sessionDescriptionHandler;
        }
        this._sessionDescriptionHandler =
            this.sessionDescriptionHandlerFactory(this, this.userAgent.configuration.sessionDescriptionHandlerFactoryOptions);
        this.emit("SessionDescriptionHandler-created", this._sessionDescriptionHandler);
        return this._sessionDescriptionHandler;
    };
    /**
     * Transition session state.
     * @internal
     */
    Session.prototype.stateTransition = function (newState) {
        var _this = this;
        var invalidTransition = function () {
            throw new Error("Invalid state transition from " + _this._state + " to " + newState);
        };
        // Validate transition
        switch (this._state) {
            case session_state_1.SessionState.Initial:
                if (newState !== session_state_1.SessionState.Establishing &&
                    newState !== session_state_1.SessionState.Established &&
                    newState !== session_state_1.SessionState.Terminating &&
                    newState !== session_state_1.SessionState.Terminated) {
                    invalidTransition();
                }
                break;
            case session_state_1.SessionState.Establishing:
                if (newState !== session_state_1.SessionState.Established &&
                    newState !== session_state_1.SessionState.Terminating &&
                    newState !== session_state_1.SessionState.Terminated) {
                    invalidTransition();
                }
                break;
            case session_state_1.SessionState.Established:
                if (newState !== session_state_1.SessionState.Terminating &&
                    newState !== session_state_1.SessionState.Terminated) {
                    invalidTransition();
                }
                break;
            case session_state_1.SessionState.Terminating:
                if (newState !== session_state_1.SessionState.Terminated) {
                    invalidTransition();
                }
                break;
            case session_state_1.SessionState.Terminated:
                invalidTransition();
                break;
            default:
                throw new Error("Unrecognized state.");
        }
        if (newState === session_state_1.SessionState.Established) {
            this.startTime = new Date(); // Deprecated legacy ported behavior
        }
        if (newState === session_state_1.SessionState.Terminated) {
            this.endTime = new Date(); // Deprecated legacy ported behavior
            this.close();
        }
        // Transition
        this._state = newState;
        this.logger.log("Session " + this.id + " transitioned to state " + this._state);
        this._stateEventEmitter.emit("event", this._state);
    };
    // DEPRECATED
    /** @internal */
    Session.C = Enums_1.SessionStatus;
    return Session;
}(events_1.EventEmitter));
exports.Session = Session;


/***/ }),
/* 96 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Creates an {@link Emitter}.
 * @param eventEmitter - An event emitter.
 * @param eventName - Event name.
 * @internal
 */
function makeEmitter(eventEmitter, eventName) {
    if (eventName === void 0) { eventName = "event"; }
    return {
        on: function (listener) {
            eventEmitter.on(eventName, listener);
        },
        off: function (listener) {
            eventEmitter.removeListener(eventName, listener);
        },
        once: function (listener) {
            eventEmitter.once(eventName, listener);
        }
    };
}
exports.makeEmitter = makeEmitter;


/***/ }),
/* 97 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * An exchange of information (incoming INFO).
 * @public
 */
var Info = /** @class */ (function () {
    /** @internal */
    function Info(incomingInfoRequest) {
        this.incomingInfoRequest = incomingInfoRequest;
    }
    Object.defineProperty(Info.prototype, "request", {
        /** Incoming MESSAGE request message. */
        get: function () {
            return this.incomingInfoRequest.message;
        },
        enumerable: true,
        configurable: true
    });
    /** Accept the request. */
    Info.prototype.accept = function (options) {
        this.incomingInfoRequest.accept(options);
        return Promise.resolve();
    };
    /** Reject the request. */
    Info.prototype.reject = function (options) {
        this.incomingInfoRequest.reject(options);
        return Promise.resolve();
    };
    return Info;
}());
exports.Info = Info;


/***/ }),
/* 98 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * A notification of an event (incoming NOTIFY).
 * @public
 */
var Notification = /** @class */ (function () {
    /** @internal */
    function Notification(incomingNotifyRequest) {
        this.incomingNotifyRequest = incomingNotifyRequest;
    }
    Object.defineProperty(Notification.prototype, "request", {
        /** Incoming NOTIFY request message. */
        get: function () {
            return this.incomingNotifyRequest.message;
        },
        enumerable: true,
        configurable: true
    });
    /** Accept the request. */
    Notification.prototype.accept = function (options) {
        this.incomingNotifyRequest.accept(options);
        return Promise.resolve();
    };
    /** Reject the request. */
    Notification.prototype.reject = function (options) {
        this.incomingNotifyRequest.reject(options);
        return Promise.resolve();
    };
    return Notification;
}());
exports.Notification = Notification;


/***/ }),
/* 99 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var core_1 = __webpack_require__(2);
/**
 * A request to establish a {@link Session} elsewhere (incoming REFER).
 * @public
 */
var Referral = /** @class */ (function () {
    /** @internal */
    function Referral(incomingReferRequest, session) {
        this.incomingReferRequest = incomingReferRequest;
        this.session = session;
    }
    Object.defineProperty(Referral.prototype, "referTo", {
        get: function () {
            var referTo = this.incomingReferRequest.message.parseHeader("refer-to");
            if (!(referTo instanceof core_1.NameAddrHeader)) {
                throw new Error("Failed to parse Refer-To header.");
            }
            return referTo;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Referral.prototype, "referredBy", {
        get: function () {
            return this.incomingReferRequest.message.getHeader("referred-by");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Referral.prototype, "replaces", {
        get: function () {
            return this.referTo.uri.getHeader("replaces");
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Referral.prototype, "request", {
        /** Incoming REFER request message. */
        get: function () {
            return this.incomingReferRequest.message;
        },
        enumerable: true,
        configurable: true
    });
    /** Accept the request. */
    Referral.prototype.accept = function (options) {
        if (options === void 0) { options = { statusCode: 202 }; }
        this.incomingReferRequest.accept(options);
        return Promise.resolve();
    };
    /** Reject the request. */
    Referral.prototype.reject = function (options) {
        this.incomingReferRequest.reject(options);
        return Promise.resolve();
    };
    /**
     * Creates an inviter which may be used to send an out of dialog INVITE request.
     *
     * @remarks
     * This a helper method to create an Inviter which will execute the referral
     * of the `Session` which was referred. The appropriate headers are set and
     * the referred `Session` is linked to the new `Session`. Note that only a
     * single instance of the `Inviter` will be created and returned (if called
     * more than once a reference to the same `Inviter` will be returned every time).
     *
     * @param options - Options bucket.
     * @param modifiers - Session description handler modifiers.
     */
    Referral.prototype.makeInviter = function (options) {
        if (this.inviter) {
            return this.inviter;
        }
        var targetURI = this.referTo.uri.clone();
        targetURI.clearHeaders();
        options = options || {};
        var extraHeaders = (options.extraHeaders || []).slice();
        var replaces = this.replaces;
        if (replaces) {
            // decodeURIComponent is a holdover from 2c086eb4. Not sure that it is actually necessary
            extraHeaders.push("Replaces: " + decodeURIComponent(replaces));
        }
        var referredBy = this.referredBy;
        if (referredBy) {
            extraHeaders.push("Referred-By: " + referredBy);
        }
        options.extraHeaders = extraHeaders;
        this.inviter = this.session.userAgent.makeInviter(targetURI, options);
        this.inviter.referred = this.session;
        this.session.referral = this.inviter;
        return this.inviter;
    };
    return Referral;
}());
exports.Referral = Referral;


/***/ }),
/* 100 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
/**
 * {@link Session} state.
 * @remarks
 * Valid state transitions:
 * ```
 * 1. "initial" --> "establishing" (before INVITE sent on outgoing, before OK sent on incoming)
 * 2. "initial" --> "established" (after ACK is sent on outgoing, after OK sent on incoming)
 * 4. "initial" --> "terminating"
 * 4. "initial" --> "terminated"
 * 5. "establishing" --> "established"
 * 6. "establishing" --> "terminating"
 * 7. "establishing" --> "terminated"
 * 8. "established" --> "terminating"
 * 9. "established" --> "terminated"
 * 10. "terminating" --> "terminated"
 * ```
 * @public
 */
var SessionState;
(function (SessionState) {
    SessionState["Initial"] = "Initial";
    SessionState["Establishing"] = "Establishing";
    SessionState["Established"] = "Established";
    SessionState["Terminating"] = "Terminating";
    SessionState["Terminated"] = "Terminated";
})(SessionState = exports.SessionState || (exports.SessionState = {}));


/***/ }),
/* 101 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var stripPayload = function (sdp, payload) {
    var mediaDescs = [];
    var lines = sdp.split(/\r\n/);
    var currentMediaDesc;
    for (var i = 0; i < lines.length;) {
        var line = lines[i];
        if (/^m=(?:audio|video)/.test(line)) {
            currentMediaDesc = {
                index: i,
                stripped: []
            };
            mediaDescs.push(currentMediaDesc);
        }
        else if (currentMediaDesc) {
            var rtpmap = /^a=rtpmap:(\d+) ([^/]+)\//.exec(line);
            if (rtpmap && payload === rtpmap[2]) {
                lines.splice(i, 1);
                currentMediaDesc.stripped.push(rtpmap[1]);
                continue; // Don't increment 'i'
            }
        }
        i++;
    }
    for (var _i = 0, mediaDescs_1 = mediaDescs; _i < mediaDescs_1.length; _i++) {
        var mediaDesc = mediaDescs_1[_i];
        var mline = lines[mediaDesc.index].split(" ");
        // Ignore the first 3 parameters of the mline. The codec information is after that
        for (var j = 3; j < mline.length;) {
            if (mediaDesc.stripped.indexOf(mline[j]) !== -1) {
                mline.splice(j, 1);
                continue;
            }
            j++;
        }
        lines[mediaDesc.index] = mline.join(" ");
    }
    return lines.join("\r\n");
};
var stripMediaDescription = function (sdp, description) {
    var descriptionRegExp = new RegExp("m=" + description + ".*$", "gm");
    var groupRegExp = new RegExp("^a=group:.*$", "gm");
    if (descriptionRegExp.test(sdp)) {
        var midLineToRemove_1;
        sdp = sdp.split(/^m=/gm).filter(function (section) {
            if (section.substr(0, description.length) === description) {
                midLineToRemove_1 = section.match(/^a=mid:.*$/gm);
                if (midLineToRemove_1) {
                    var step = midLineToRemove_1[0].match(/:.+$/g);
                    if (step) {
                        midLineToRemove_1 = step[0].substr(1);
                    }
                }
                return false;
            }
            return true;
        }).join("m=");
        var groupLine = sdp.match(groupRegExp);
        if (groupLine && groupLine.length === 1) {
            var groupLinePortion = groupLine[0];
            var groupRegExpReplace = new RegExp("\ *" + midLineToRemove_1 + "[^\ ]*", "g");
            groupLinePortion = groupLinePortion.replace(groupRegExpReplace, "");
            sdp = sdp.split(groupRegExp).join(groupLinePortion);
        }
    }
    return sdp;
};
function stripTcpCandidates(description) {
    description.sdp = (description.sdp || "").replace(/^a=candidate:\d+ \d+ tcp .*?\r\n/img, "");
    return Promise.resolve(description);
}
exports.stripTcpCandidates = stripTcpCandidates;
function stripTelephoneEvent(description) {
    description.sdp = stripPayload(description.sdp || "", "telephone-event");
    return Promise.resolve(description);
}
exports.stripTelephoneEvent = stripTelephoneEvent;
function cleanJitsiSdpImageattr(description) {
    description.sdp = (description.sdp || "").replace(/^(a=imageattr:.*?)(x|y)=\[0-/gm, "$1$2=[1:");
    return Promise.resolve(description);
}
exports.cleanJitsiSdpImageattr = cleanJitsiSdpImageattr;
function stripG722(description) {
    description.sdp = stripPayload(description.sdp || "", "G722");
    return Promise.resolve(description);
}
exports.stripG722 = stripG722;
function stripRtpPayload(payload) {
    return function (description) {
        description.sdp = stripPayload(description.sdp || "", payload);
        return Promise.resolve(description);
    };
}
exports.stripRtpPayload = stripRtpPayload;
function stripVideo(description) {
    description.sdp = stripMediaDescription(description.sdp || "", "video");
    return Promise.resolve(description);
}
exports.stripVideo = stripVideo;
function addMidLines(description) {
    var sdp = description.sdp || "";
    if (sdp.search(/^a=mid.*$/gm) === -1) {
        var mlines_1 = sdp.match(/^m=.*$/gm);
        var sdpArray_1 = sdp.split(/^m=.*$/gm);
        if (mlines_1) {
            mlines_1.forEach(function (elem, idx) {
                mlines_1[idx] = elem + "\na=mid:" + idx;
            });
        }
        sdpArray_1.forEach(function (elem, idx) {
            if (mlines_1 && mlines_1[idx]) {
                sdpArray_1[idx] = elem + mlines_1[idx];
            }
        });
        sdp = sdpArray_1.join("");
        description.sdp = sdp;
    }
    return Promise.resolve(description);
}
exports.addMidLines = addMidLines;


/***/ }),
/* 102 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var Enums_1 = __webpack_require__(82);
/* SessionDescriptionHandlerObserver
 * @class SessionDescriptionHandler Observer Class.
 * @param {SIP.Session} session
 * @param {Object} [options]
 */
var SessionDescriptionHandlerObserver = /** @class */ (function () {
    function SessionDescriptionHandlerObserver(session, options) {
        this.type = Enums_1.TypeStrings.SessionDescriptionHandlerObserver;
        this.session = session;
        this.options = options;
    }
    SessionDescriptionHandlerObserver.prototype.trackAdded = function () {
        this.session.emit("trackAdded");
    };
    SessionDescriptionHandlerObserver.prototype.directionChanged = function () {
        this.session.emit("directionChanged");
    };
    return SessionDescriptionHandlerObserver;
}());
exports.SessionDescriptionHandlerObserver = SessionDescriptionHandlerObserver;


/***/ }),
/* 103 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var core_1 = __webpack_require__(2);
var Enums_1 = __webpack_require__(82);
var Exceptions_1 = __webpack_require__(84);
var Utils_1 = __webpack_require__(83);
var TransportStatus;
(function (TransportStatus) {
    TransportStatus[TransportStatus["STATUS_CONNECTING"] = 0] = "STATUS_CONNECTING";
    TransportStatus[TransportStatus["STATUS_OPEN"] = 1] = "STATUS_OPEN";
    TransportStatus[TransportStatus["STATUS_CLOSING"] = 2] = "STATUS_CLOSING";
    TransportStatus[TransportStatus["STATUS_CLOSED"] = 3] = "STATUS_CLOSED";
})(TransportStatus = exports.TransportStatus || (exports.TransportStatus = {}));
/**
 * Compute an amount of time in seconds to wait before sending another
 * keep-alive.
 * @returns {Number}
 */
var computeKeepAliveTimeout = function (upperBound) {
    var lowerBound = upperBound * 0.8;
    return 1000 * (Math.random() * (upperBound - lowerBound) + lowerBound);
};
/**
 * @class Transport
 * @param {Object} options
 */
var Transport = /** @class */ (function (_super) {
    tslib_1.__extends(Transport, _super);
    function Transport(logger, options) {
        if (options === void 0) { options = {}; }
        var _this = _super.call(this, logger) || this;
        _this.type = Enums_1.TypeStrings.Transport;
        _this.reconnectionAttempts = 0;
        _this.status = TransportStatus.STATUS_CONNECTING;
        _this.configuration = _this.loadConfig(options);
        _this.server = _this.configuration.wsServers[0];
        return _this;
    }
    /**
     * @returns {Boolean}
     */
    Transport.prototype.isConnected = function () {
        return this.status === TransportStatus.STATUS_OPEN;
    };
    /**
     * Send a message.
     * @param message - Outgoing message.
     * @param options - Options bucket.
     */
    Transport.prototype.sendPromise = function (message, options) {
        if (options === void 0) { options = {}; }
        if (this.ws === undefined) {
            this.onError("unable to send message - WebSocket undefined");
            return Promise.reject(new Error("WebSocket undefined."));
        }
        // FIXME: This check is likely not necessary as WebSocket.send() will
        // throw INVALID_STATE_ERR if the connection is not currently open
        // which could happen regardless of what we thing the state is.
        if (!this.statusAssert(TransportStatus.STATUS_OPEN, options.force)) {
            this.onError("unable to send message - WebSocket not open");
            return Promise.reject(new Error("WebSocket not open."));
        }
        if (this.configuration.traceSip === true) {
            this.logger.log("sending WebSocket message:\n\n" + message + "\n");
        }
        // WebSocket.send() can throw.
        // https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
        try {
            this.ws.send(message);
        }
        catch (error) {
            if (error instanceof error) {
                Promise.reject(error);
            }
            return Promise.reject(new Error("Failed to send message."));
        }
        return Promise.resolve({ msg: message });
    };
    /**
     * Disconnect socket.
     */
    Transport.prototype.disconnectPromise = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (this.disconnectionPromise) { // Already disconnecting. Just return this.
            return this.disconnectionPromise;
        }
        options.code = options.code || 1000;
        if (!this.statusTransition(TransportStatus.STATUS_CLOSING, options.force)) {
            if (this.status === TransportStatus.STATUS_CLOSED) { // Websocket is already closed
                return Promise.resolve({ overrideEvent: true });
            }
            else if (this.connectionPromise) { // Websocket is connecting, cannot move to disconneting yet
                return this.connectionPromise.then(function () { return Promise.reject("The websocket did not disconnect"); })
                    .catch(function () { return Promise.resolve({ overrideEvent: true }); });
            }
            else {
                // Cannot move to disconnecting, but not in connecting state.
                return Promise.reject("The websocket did not disconnect");
            }
        }
        this.emit("disconnecting");
        this.disconnectionPromise = new Promise(function (resolve, reject) {
            _this.disconnectDeferredResolve = resolve;
            if (_this.reconnectTimer) {
                clearTimeout(_this.reconnectTimer);
                _this.reconnectTimer = undefined;
            }
            if (_this.ws) {
                _this.stopSendingKeepAlives();
                _this.logger.log("closing WebSocket " + _this.server.wsUri);
                _this.ws.close(options.code, options.reason);
            }
            else {
                reject("Attempted to disconnect but the websocket doesn't exist");
            }
        });
        return this.disconnectionPromise;
    };
    /**
     * Connect socket.
     */
    Transport.prototype.connectPromise = function (options) {
        var _this = this;
        if (options === void 0) { options = {}; }
        if (this.status === TransportStatus.STATUS_CLOSING && !options.force) {
            return Promise.reject("WebSocket " + this.server.wsUri + " is closing");
        }
        if (this.connectionPromise) {
            return this.connectionPromise;
        }
        this.server = this.server || this.getNextWsServer(options.force);
        this.connectionPromise = new Promise(function (resolve, reject) {
            if ((_this.status === TransportStatus.STATUS_OPEN || _this.status === TransportStatus.STATUS_CLOSING)
                && !options.force) {
                _this.logger.warn("WebSocket " + _this.server.wsUri + " is already connected");
                reject("Failed status check - attempted to open a connection but already open/closing");
                return;
            }
            _this.connectDeferredResolve = resolve;
            _this.connectDeferredReject = reject;
            _this.status = TransportStatus.STATUS_CONNECTING;
            _this.emit("connecting");
            _this.logger.log("connecting to WebSocket " + _this.server.wsUri);
            _this.disposeWs();
            try {
                _this.ws = new WebSocket(_this.server.wsUri, "sip");
            }
            catch (e) {
                _this.ws = undefined;
                _this.statusTransition(TransportStatus.STATUS_CLOSED, true);
                _this.onError("error connecting to WebSocket " + _this.server.wsUri + ":" + e);
                reject("Failed to create a websocket");
                _this.connectDeferredResolve = undefined;
                _this.connectDeferredReject = undefined;
                return;
            }
            if (!_this.ws) {
                reject("Unexpected instance websocket not set");
                _this.connectDeferredResolve = undefined;
                _this.connectDeferredReject = undefined;
                return;
            }
            _this.connectionTimeout = setTimeout(function () {
                _this.statusTransition(TransportStatus.STATUS_CLOSED);
                _this.logger.warn("took too long to connect - exceeded time set in configuration.connectionTimeout: " +
                    _this.configuration.connectionTimeout + "s");
                _this.emit("disconnected", { code: 1000 });
                _this.connectionPromise = undefined;
                reject("Connection timeout");
                _this.connectDeferredResolve = undefined;
                _this.connectDeferredReject = undefined;
                var ws = _this.ws;
                _this.disposeWs();
                if (ws) {
                    ws.close(1000);
                }
            }, _this.configuration.connectionTimeout * 1000);
            _this.boundOnOpen = _this.onOpen.bind(_this);
            _this.boundOnMessage = _this.onMessage.bind(_this);
            _this.boundOnClose = _this.onClose.bind(_this);
            _this.boundOnError = _this.onWebsocketError.bind(_this);
            _this.ws.addEventListener("open", _this.boundOnOpen);
            _this.ws.addEventListener("message", _this.boundOnMessage);
            _this.ws.addEventListener("close", _this.boundOnClose);
            _this.ws.addEventListener("error", _this.boundOnError);
        });
        return this.connectionPromise;
    };
    /**
     * @event
     * @param {event} e
     */
    Transport.prototype.onMessage = function (e) {
        var data = e.data;
        var finishedData;
        // CRLF Keep Alive response from server. Clear our keep alive timeout.
        if (/^(\r\n)+$/.test(data)) {
            this.clearKeepAliveTimeout();
            if (this.configuration.traceSip === true) {
                this.logger.log("received WebSocket message with CRLF Keep Alive response");
            }
            return;
        }
        else if (!data) {
            this.logger.warn("received empty message, message discarded");
            return;
        }
        else if (typeof data !== "string") { // WebSocket binary message.
            try {
                // the UInt8Data was here prior to types, and doesn't check
                finishedData = String.fromCharCode.apply(null, new Uint8Array(data));
            }
            catch (err) {
                this.logger.warn("received WebSocket binary message failed to be converted into string, message discarded");
                return;
            }
            if (this.configuration.traceSip === true) {
                this.logger.log("received WebSocket binary message:\n\n" + data + "\n");
            }
        }
        else { // WebSocket text message.
            if (this.configuration.traceSip === true) {
                this.logger.log("received WebSocket text message:\n\n" + data + "\n");
            }
            finishedData = data;
        }
        this.emit("message", finishedData);
    };
    // Transport Event Handlers
    /**
     * @event
     * @param {event} e
     */
    Transport.prototype.onOpen = function () {
        if (this.status === TransportStatus.STATUS_CLOSED) { // Indicated that the transport thinks the ws is dead already
            var ws = this.ws;
            this.disposeWs();
            if (ws) {
                ws.close(1000);
            }
            return;
        }
        this.statusTransition(TransportStatus.STATUS_OPEN, true);
        this.emit("connected");
        if (this.connectionTimeout) {
            clearTimeout(this.connectionTimeout);
            this.connectionTimeout = undefined;
        }
        this.logger.log("WebSocket " + this.server.wsUri + " connected");
        // Clear reconnectTimer since we are not disconnected
        if (this.reconnectTimer !== undefined) {
            clearTimeout(this.reconnectTimer);
            this.reconnectTimer = undefined;
        }
        // Reset reconnectionAttempts
        this.reconnectionAttempts = 0;
        // Reset disconnection promise so we can disconnect from a fresh state
        this.disconnectionPromise = undefined;
        this.disconnectDeferredResolve = undefined;
        // Start sending keep-alives
        this.startSendingKeepAlives();
        if (this.connectDeferredResolve) {
            this.connectDeferredResolve({ overrideEvent: true });
            this.connectDeferredResolve = undefined;
            this.connectDeferredReject = undefined;
        }
        else {
            this.logger.warn("Unexpected websocket.onOpen with no connectDeferredResolve");
        }
    };
    /**
     * @event
     * @param {event} e
     */
    Transport.prototype.onClose = function (e) {
        this.logger.log("WebSocket disconnected (code: " + e.code + (e.reason ? "| reason: " + e.reason : "") + ")");
        if (this.status !== TransportStatus.STATUS_CLOSING) {
            this.logger.warn("WebSocket closed without SIP.js requesting it");
            this.emit("transportError");
        }
        this.stopSendingKeepAlives();
        // Clean up connection variables so we can connect again from a fresh state
        if (this.connectionTimeout) {
            clearTimeout(this.connectionTimeout);
        }
        if (this.connectDeferredReject) {
            this.connectDeferredReject("Websocket Closed");
        }
        this.connectionTimeout = undefined;
        this.connectionPromise = undefined;
        this.connectDeferredResolve = undefined;
        this.connectDeferredReject = undefined;
        // Check whether the user requested to close.
        if (this.disconnectDeferredResolve) {
            this.disconnectDeferredResolve({ overrideEvent: true });
            this.statusTransition(TransportStatus.STATUS_CLOSED);
            this.disconnectDeferredResolve = undefined;
            return;
        }
        this.statusTransition(TransportStatus.STATUS_CLOSED, true);
        this.emit("disconnected", { code: e.code, reason: e.reason });
        this.disposeWs();
        this.reconnect();
    };
    /**
     * Removes event listeners and clears the instance ws
     */
    Transport.prototype.disposeWs = function () {
        if (this.ws) {
            this.ws.removeEventListener("open", this.boundOnOpen);
            this.ws.removeEventListener("message", this.boundOnMessage);
            this.ws.removeEventListener("close", this.boundOnClose);
            this.ws.removeEventListener("error", this.boundOnError);
            this.ws = undefined;
        }
    };
    /**
     * @event
     * @param {string} e
     */
    Transport.prototype.onError = function (e) {
        this.logger.warn("Transport error: " + e);
        this.emit("transportError");
    };
    /**
     * @event
     * @private
     */
    Transport.prototype.onWebsocketError = function () {
        this.onError("The Websocket had an error");
    };
    /**
     * Reconnection attempt logic.
     */
    Transport.prototype.reconnect = function () {
        var _this = this;
        if (this.reconnectionAttempts > 0) {
            this.logger.log("Reconnection attempt " + this.reconnectionAttempts + " failed");
        }
        if (this.noAvailableServers()) {
            this.logger.warn("attempted to get next ws server but there are no available ws servers left");
            this.logger.warn("no available ws servers left - going to closed state");
            this.statusTransition(TransportStatus.STATUS_CLOSED, true);
            this.emit("closed");
            this.resetServerErrorStatus();
            return;
        }
        if (this.isConnected()) {
            this.logger.warn("attempted to reconnect while connected - forcing disconnect");
            this.disconnect({ force: true });
        }
        this.reconnectionAttempts += 1;
        if (this.reconnectionAttempts > this.configuration.maxReconnectionAttempts) {
            this.logger.warn("maximum reconnection attempts for WebSocket " + this.server.wsUri);
            this.logger.log("transport " + this.server.wsUri + " failed | connection state set to 'error'");
            this.server.isError = true;
            this.emit("transportError");
            if (!this.noAvailableServers()) {
                this.server = this.getNextWsServer();
            }
            // When there are no available servers, the reconnect function ends on the next recursive call
            // after checking for no available servers again.
            this.reconnectionAttempts = 0;
            this.reconnect();
        }
        else {
            this.logger.log("trying to reconnect to WebSocket " +
                this.server.wsUri + " (reconnection attempt " + this.reconnectionAttempts + ")");
            this.reconnectTimer = setTimeout(function () {
                _this.connect();
                _this.reconnectTimer = undefined;
            }, (this.reconnectionAttempts === 1) ? 0 : this.configuration.reconnectionTimeout * 1000);
        }
    };
    /**
     * Resets the error state of all servers in the configuration
     */
    Transport.prototype.resetServerErrorStatus = function () {
        for (var _i = 0, _a = this.configuration.wsServers; _i < _a.length; _i++) {
            var websocket = _a[_i];
            websocket.isError = false;
        }
    };
    /**
     * Retrieve the next server to which connect.
     * @param {Boolean} force allows bypass of server error status checking
     * @returns {Object} WsServer
     */
    Transport.prototype.getNextWsServer = function (force) {
        if (force === void 0) { force = false; }
        if (this.noAvailableServers()) {
            this.logger.warn("attempted to get next ws server but there are no available ws servers left");
            throw new Error("Attempted to get next ws server, but there are no available ws servers left.");
        }
        // Order servers by weight
        var candidates = [];
        for (var _i = 0, _a = this.configuration.wsServers; _i < _a.length; _i++) {
            var wsServer = _a[_i];
            if (wsServer.isError && !force) {
                continue;
            }
            else if (candidates.length === 0) {
                candidates.push(wsServer);
            }
            else if (wsServer.weight > candidates[0].weight) {
                candidates = [wsServer];
            }
            else if (wsServer.weight === candidates[0].weight) {
                candidates.push(wsServer);
            }
        }
        var idx = Math.floor(Math.random() * candidates.length);
        return candidates[idx];
    };
    /**
     * Checks all configuration servers, returns true if all of them have isError: true and false otherwise
     * @returns {Boolean}
     */
    Transport.prototype.noAvailableServers = function () {
        for (var _i = 0, _a = this.configuration.wsServers; _i < _a.length; _i++) {
            var server = _a[_i];
            if (!server.isError) {
                return false;
            }
        }
        return true;
    };
    // ==============================
    // KeepAlive Stuff
    // ==============================
    /**
     * Send a keep-alive (a double-CRLF sequence).
     * @returns {Boolean}
     */
    Transport.prototype.sendKeepAlive = function () {
        var _this = this;
        if (this.keepAliveDebounceTimeout) {
            // We already have an outstanding keep alive, do not send another.
            return;
        }
        this.keepAliveDebounceTimeout = setTimeout(function () {
            _this.emit("keepAliveDebounceTimeout");
            _this.clearKeepAliveTimeout();
        }, this.configuration.keepAliveDebounce * 1000);
        return this.send("\r\n\r\n");
    };
    Transport.prototype.clearKeepAliveTimeout = function () {
        if (this.keepAliveDebounceTimeout) {
            clearTimeout(this.keepAliveDebounceTimeout);
        }
        this.keepAliveDebounceTimeout = undefined;
    };
    /**
     * Start sending keep-alives.
     */
    Transport.prototype.startSendingKeepAlives = function () {
        var _this = this;
        if (this.configuration.keepAliveInterval && !this.keepAliveInterval) {
            this.keepAliveInterval = setInterval(function () {
                _this.sendKeepAlive();
                _this.startSendingKeepAlives();
            }, computeKeepAliveTimeout(this.configuration.keepAliveInterval));
        }
    };
    /**
     * Stop sending keep-alives.
     */
    Transport.prototype.stopSendingKeepAlives = function () {
        if (this.keepAliveInterval) {
            clearInterval(this.keepAliveInterval);
        }
        if (this.keepAliveDebounceTimeout) {
            clearTimeout(this.keepAliveDebounceTimeout);
        }
        this.keepAliveInterval = undefined;
        this.keepAliveDebounceTimeout = undefined;
    };
    // ==============================
    // Status Stuff
    // ==============================
    /**
     * Checks given status against instance current status. Returns true if they match
     * @param {Number} status
     * @param {Boolean} [force]
     * @returns {Boolean}
     */
    Transport.prototype.statusAssert = function (status, force) {
        if (status === this.status) {
            return true;
        }
        else {
            if (force) {
                this.logger.warn("Attempted to assert " +
                    Object.keys(TransportStatus)[this.status] + " as " +
                    Object.keys(TransportStatus)[status] + "- continuing with option: 'force'");
                return true;
            }
            else {
                this.logger.warn("Tried to assert " +
                    Object.keys(TransportStatus)[status] + " but is currently " +
                    Object.keys(TransportStatus)[this.status]);
                return false;
            }
        }
    };
    /**
     * Transitions the status. Checks for legal transition via assertion beforehand
     * @param {Number} status
     * @param {Boolean} [force]
     * @returns {Boolean}
     */
    Transport.prototype.statusTransition = function (status, force) {
        if (force === void 0) { force = false; }
        this.logger.log("Attempting to transition status from " +
            Object.keys(TransportStatus)[this.status] + " to " +
            Object.keys(TransportStatus)[status]);
        if ((status === TransportStatus.STATUS_CONNECTING && this.statusAssert(TransportStatus.STATUS_CLOSED, force)) ||
            (status === TransportStatus.STATUS_OPEN && this.statusAssert(TransportStatus.STATUS_CONNECTING, force)) ||
            (status === TransportStatus.STATUS_CLOSING && this.statusAssert(TransportStatus.STATUS_OPEN, force)) ||
            (status === TransportStatus.STATUS_CLOSED)) {
            this.status = status;
            return true;
        }
        else {
            this.logger.warn("Status transition failed - result: no-op - reason:" +
                " either gave an nonexistent status or attempted illegal transition");
            return false;
        }
    };
    // ==============================
    // Configuration Handling
    // ==============================
    /**
     * Configuration load.
     * returns {Configuration}
     */
    Transport.prototype.loadConfig = function (configuration) {
        var settings = {
            wsServers: [{
                    scheme: "WSS",
                    sipUri: "<sip:edge.sip.onsip.com;transport=ws;lr>",
                    weight: 0,
                    wsUri: "wss://edge.sip.onsip.com",
                    isError: false
                }],
            connectionTimeout: 5,
            maxReconnectionAttempts: 3,
            reconnectionTimeout: 4,
            keepAliveInterval: 0,
            keepAliveDebounce: 10,
            // Logging
            traceSip: false
        };
        var configCheck = this.getConfigurationCheck();
        // Check Mandatory parameters
        for (var parameter in configCheck.mandatory) {
            if (!configuration.hasOwnProperty(parameter)) {
                throw new Exceptions_1.Exceptions.ConfigurationError(parameter);
            }
            else {
                var value = configuration[parameter];
                var checkedValue = configCheck.mandatory[parameter](value);
                if (checkedValue !== undefined) {
                    settings[parameter] = checkedValue;
                }
                else {
                    throw new Exceptions_1.Exceptions.ConfigurationError(parameter, value);
                }
            }
        }
        // Check Optional parameters
        for (var parameter in configCheck.optional) {
            if (configuration.hasOwnProperty(parameter)) {
                var value = configuration[parameter];
                // If the parameter value is an empty array, but shouldn't be, apply its default value.
                // If the parameter value is null, empty string, or undefined then apply its default value.
                // If it's a number with NaN value then also apply its default value.
                // NOTE: JS does not allow "value === NaN", the following does the work:
                if ((value instanceof Array && value.length === 0) ||
                    (value === null || value === "" || value === undefined) ||
                    (typeof (value) === "number" && isNaN(value))) {
                    continue;
                }
                var checkedValue = configCheck.optional[parameter](value);
                if (checkedValue !== undefined) {
                    settings[parameter] = checkedValue;
                }
                else {
                    throw new Exceptions_1.Exceptions.ConfigurationError(parameter, value);
                }
            }
        }
        var skeleton = {}; // Fill the value of the configuration_skeleton
        for (var parameter in settings) {
            if (settings.hasOwnProperty(parameter)) {
                skeleton[parameter] = {
                    value: settings[parameter],
                };
            }
        }
        var returnConfiguration = Object.defineProperties({}, skeleton);
        this.logger.log("configuration parameters after validation:");
        for (var parameter in settings) {
            if (settings.hasOwnProperty(parameter)) {
                this.logger.log("· " + parameter + ": " + JSON.stringify(settings[parameter]));
            }
        }
        return returnConfiguration;
    };
    /**
     * Configuration checker.
     * @return {Boolean}
     */
    Transport.prototype.getConfigurationCheck = function () {
        return {
            mandatory: {},
            optional: {
                // Note: this function used to call 'this.logger.error' but calling 'this' with anything here is invalid
                wsServers: function (wsServers) {
                    /* Allow defining wsServers parameter as:
                     *  String: "host"
                     *  Array of Strings: ["host1", "host2"]
                     *  Array of Objects: [{wsUri:"host1", weight:1}, {wsUri:"host2", weight:0}]
                     *  Array of Objects and Strings: [{wsUri:"host1"}, "host2"]
                     */
                    if (typeof wsServers === "string") {
                        wsServers = [{ wsUri: wsServers }];
                    }
                    else if (wsServers instanceof Array) {
                        for (var idx = 0; idx < wsServers.length; idx++) {
                            if (typeof wsServers[idx] === "string") {
                                wsServers[idx] = { wsUri: wsServers[idx] };
                            }
                        }
                    }
                    else {
                        return;
                    }
                    if (wsServers.length === 0) {
                        return false;
                    }
                    for (var _i = 0, wsServers_1 = wsServers; _i < wsServers_1.length; _i++) {
                        var wsServer = wsServers_1[_i];
                        if (!wsServer.wsUri) {
                            return;
                        }
                        if (wsServer.weight && !Number(wsServer.weight)) {
                            return;
                        }
                        var url = core_1.Grammar.parse(wsServer.wsUri, "absoluteURI");
                        if (url === -1) {
                            return;
                        }
                        else if (["wss", "ws", "udp"].indexOf(url.scheme) < 0) {
                            return;
                        }
                        else {
                            wsServer.sipUri = "<sip:" + url.host +
                                (url.port ? ":" + url.port : "") + ";transport=" + url.scheme.replace(/^wss$/i, "ws") + ";lr>";
                            if (!wsServer.weight) {
                                wsServer.weight = 0;
                            }
                            wsServer.isError = false;
                            wsServer.scheme = url.scheme.toUpperCase();
                        }
                    }
                    return wsServers;
                },
                keepAliveInterval: function (keepAliveInterval) {
                    if (Utils_1.Utils.isDecimal(keepAliveInterval)) {
                        var value = Number(keepAliveInterval);
                        if (value > 0) {
                            return value;
                        }
                    }
                },
                keepAliveDebounce: function (keepAliveDebounce) {
                    if (Utils_1.Utils.isDecimal(keepAliveDebounce)) {
                        var value = Number(keepAliveDebounce);
                        if (value > 0) {
                            return value;
                        }
                    }
                },
                traceSip: function (traceSip) {
                    if (typeof traceSip === "boolean") {
                        return traceSip;
                    }
                },
                connectionTimeout: function (connectionTimeout) {
                    if (Utils_1.Utils.isDecimal(connectionTimeout)) {
                        var value = Number(connectionTimeout);
                        if (value > 0) {
                            return value;
                        }
                    }
                },
                maxReconnectionAttempts: function (maxReconnectionAttempts) {
                    if (Utils_1.Utils.isDecimal(maxReconnectionAttempts)) {
                        var value = Number(maxReconnectionAttempts);
                        if (value >= 0) {
                            return value;
                        }
                    }
                },
                reconnectionTimeout: function (reconnectionTimeout) {
                    if (Utils_1.Utils.isDecimal(reconnectionTimeout)) {
                        var value = Number(reconnectionTimeout);
                        if (value > 0) {
                            return value;
                        }
                    }
                }
            }
        };
    };
    Transport.C = TransportStatus;
    return Transport;
}(core_1.Transport));
exports.Transport = Transport;


/***/ }),
/* 104 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var Modifiers = tslib_1.__importStar(__webpack_require__(101));
exports.Modifiers = Modifiers;
var Simple_1 = __webpack_require__(105);
exports.Simple = Simple_1.Simple;
var SessionDescriptionHandler_1 = __webpack_require__(94);
exports.SessionDescriptionHandler = SessionDescriptionHandler_1.SessionDescriptionHandler;
var Transport_1 = __webpack_require__(103);
exports.Transport = Transport_1.Transport;


/***/ }),
/* 105 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = __webpack_require__(1);
var events_1 = __webpack_require__(30);
var UA_1 = __webpack_require__(93);
var Modifiers = tslib_1.__importStar(__webpack_require__(101));
/* Simple
 * @class Simple
 */
var SimpleStatus;
(function (SimpleStatus) {
    SimpleStatus[SimpleStatus["STATUS_NULL"] = 0] = "STATUS_NULL";
    SimpleStatus[SimpleStatus["STATUS_NEW"] = 1] = "STATUS_NEW";
    SimpleStatus[SimpleStatus["STATUS_CONNECTING"] = 2] = "STATUS_CONNECTING";
    SimpleStatus[SimpleStatus["STATUS_CONNECTED"] = 3] = "STATUS_CONNECTED";
    SimpleStatus[SimpleStatus["STATUS_COMPLETED"] = 4] = "STATUS_COMPLETED";
})(SimpleStatus = exports.SimpleStatus || (exports.SimpleStatus = {}));
var Simple = /** @class */ (function (_super) {
    tslib_1.__extends(Simple, _super);
    function Simple(options) {
        var _this = _super.call(this) || this;
        /*
        *  {
        *    media: {
        *      remote: {
        *        audio: <DOM element>,
        *        video: <DOM element>
        *      },
        *      local: {
        *        video: <DOM element>
        *      }
        *    },
        *    ua: {
        *       <UA Configuration Options>
        *    }
        *  }
        */
        if (options.media.remote.video) {
            _this.video = true;
        }
        else {
            _this.video = false;
        }
        if (options.media.remote.audio) {
            _this.audio = true;
        }
        else {
            _this.audio = false;
        }
        if (!_this.audio && !_this.video) {
            // Need to do at least audio or video
            // Error
            throw new Error("At least one remote audio or video element is required for Simple.");
        }
        _this.options = options;
        // https://stackoverflow.com/questions/7944460/detect-safari-browser
        var browserUa = navigator.userAgent.toLowerCase();
        var isSafari = false;
        var isFirefox = false;
        if (browserUa.indexOf("safari") > -1 && browserUa.indexOf("chrome") < 0) {
            isSafari = true;
        }
        else if (browserUa.indexOf("firefox") > -1 && browserUa.indexOf("chrome") < 0) {
            isFirefox = true;
        }
        var sessionDescriptionHandlerFactoryOptions = {};
        if (isSafari) {
            sessionDescriptionHandlerFactoryOptions.modifiers = [Modifiers.stripG722];
        }
        if (isFirefox) {
            sessionDescriptionHandlerFactoryOptions.alwaysAcquireMediaFirst = true;
        }
        if (!_this.options.ua.uri) {
            _this.anonymous = true;
        }
        else {
            _this.anonymous = false;
        }
        _this.ua = new UA_1.UA({
            // User Configurable Options
            uri: _this.options.ua.uri,
            authorizationUser: _this.options.ua.authorizationUser,
            password: _this.options.ua.password,
            displayName: _this.options.ua.displayName,
            // Undocumented "Advanced" Options
            userAgentString: _this.options.ua.userAgentString,
            // Fixed Options
            register: true,
            sessionDescriptionHandlerFactoryOptions: sessionDescriptionHandlerFactoryOptions,
            transportOptions: {
                traceSip: _this.options.ua.traceSip,
                wsServers: _this.options.ua.wsServers
            }
        });
        _this.state = SimpleStatus.STATUS_NULL;
        _this.logger = _this.ua.getLogger("sip.simple");
        _this.ua.on("registered", function () {
            _this.emit("registered", _this.ua);
        });
        _this.ua.on("unregistered", function () {
            _this.emit("unregistered", _this.ua);
        });
        _this.ua.on("registrationFailed", function () {
            _this.emit("unregistered", _this.ua);
        });
        _this.ua.on("invite", function (session) {
            // If there is already an active session reject the incoming session
            if (_this.state !== SimpleStatus.STATUS_NULL && _this.state !== SimpleStatus.STATUS_COMPLETED) {
                _this.logger.warn("Rejecting incoming call. Simple only supports 1 call at a time");
                session.reject();
                return;
            }
            _this.session = session;
            _this.setupSession();
            _this.emit("ringing", _this.session);
        });
        _this.ua.on("message", function (message) {
            _this.emit("message", message);
        });
        return _this;
    }
    Simple.prototype.call = function (destination) {
        if (!this.ua || !this.checkRegistration()) {
            this.logger.warn("A registered UA is required for calling");
            return;
        }
        if (this.state !== SimpleStatus.STATUS_NULL && this.state !== SimpleStatus.STATUS_COMPLETED) {
            this.logger.warn("Cannot make more than a single call with Simple");
            return;
        }
        // Safari hack, because you cannot call .play() from a non user action
        if (this.options.media.remote.audio) {
            this.options.media.remote.audio.autoplay = true;
        }
        if (this.options.media.remote.video) {
            this.options.media.remote.video.autoplay = true;
        }
        if (this.options.media.local && this.options.media.local.video) {
            this.options.media.local.video.autoplay = true;
            this.options.media.local.video.volume = 0;
        }
        this.session = this.ua.invite(destination, {
            sessionDescriptionHandlerOptions: {
                constraints: {
                    audio: this.audio,
                    video: this.video
                }
            }
        });
        this.setupSession();
        return this.session;
    };
    Simple.prototype.answer = function () {
        if (this.state !== SimpleStatus.STATUS_NEW && this.state !== SimpleStatus.STATUS_CONNECTING) {
            this.logger.warn("No call to answer");
            return;
        }
        // Safari hack, because you cannot call .play() from a non user action
        if (this.options.media.remote.audio) {
            this.options.media.remote.audio.autoplay = true;
        }
        if (this.options.media.remote.video) {
            this.options.media.remote.video.autoplay = true;
        }
        return this.session.accept({
            sessionDescriptionHandlerOptions: {
                constraints: {
                    audio: this.audio,
                    video: this.video
                }
            }
        });
        // emit call is active
    };
    Simple.prototype.reject = function () {
        if (this.state !== SimpleStatus.STATUS_NEW && this.state !== SimpleStatus.STATUS_CONNECTING) {
            this.logger.warn("Call is already answered");
            return;
        }
        return this.session.reject();
    };
    Simple.prototype.hangup = function () {
        if (this.state !== SimpleStatus.STATUS_CONNECTED &&
            this.state !== SimpleStatus.STATUS_CONNECTING &&
            this.state !== SimpleStatus.STATUS_NEW) {
            this.logger.warn("No active call to hang up on");
            return;
        }
        if (this.state !== SimpleStatus.STATUS_CONNECTED) {
            return this.session.cancel();
        }
        else if (this.session) {
            return this.session.bye();
        }
    };
    Simple.prototype.hold = function () {
        if (this.state !== SimpleStatus.STATUS_CONNECTED || !this.session || this.session.localHold) {
            this.logger.warn("Cannot put call on hold");
            return;
        }
        this.mute();
        this.logger.log("Placing session on hold");
        return this.session.hold();
    };
    Simple.prototype.unhold = function () {
        if (this.state !== SimpleStatus.STATUS_CONNECTED || !this.session || !this.session.localHold) {
            this.logger.warn("Cannot unhold a call that is not on hold");
            return;
        }
        this.unmute();
        this.logger.log("Placing call off hold");
        return this.session.unhold();
    };
    Simple.prototype.mute = function () {
        if (this.state !== SimpleStatus.STATUS_CONNECTED) {
            this.logger.warn("An acitve call is required to mute audio");
            return;
        }
        this.logger.log("Muting Audio");
        this.toggleMute(true);
        this.emit("mute", this);
    };
    Simple.prototype.unmute = function () {
        if (this.state !== SimpleStatus.STATUS_CONNECTED) {
            this.logger.warn("An active call is required to unmute audio");
            return;
        }
        this.logger.log("Unmuting Audio");
        this.toggleMute(false);
        this.emit("unmute", this);
    };
    Simple.prototype.sendDTMF = function (tone) {
        if (this.state !== SimpleStatus.STATUS_CONNECTED || !this.session) {
            this.logger.warn("An active call is required to send a DTMF tone");
            return;
        }
        this.logger.log("Sending DTMF tone: " + tone);
        this.session.dtmf(tone);
    };
    Simple.prototype.message = function (destination, message) {
        if (!this.ua || !this.checkRegistration()) {
            this.logger.warn("A registered UA is required to send a message");
            return;
        }
        if (!destination || !message) {
            this.logger.warn("A destination and message are required to send a message");
            return;
        }
        this.ua.message(destination, message);
    };
    // Private Helpers
    Simple.prototype.checkRegistration = function () {
        return (this.anonymous || (this.ua && this.ua.isRegistered()));
    };
    Simple.prototype.setupRemoteMedia = function () {
        var _this = this;
        if (!this.session) {
            this.logger.warn("No session to set remote media on");
            return;
        }
        // If there is a video track, it will attach the video and audio to the same element
        var pc = this.session.sessionDescriptionHandler.peerConnection;
        var remoteStream;
        if (pc.getReceivers) {
            remoteStream = new MediaStream();
            pc.getReceivers().forEach(function (receiver) {
                var track = receiver.track;
                if (track) {
                    remoteStream.addTrack(track);
                }
            });
        }
        else {
            remoteStream = pc.getRemoteStreams()[0];
        }
        if (this.video) {
            this.options.media.remote.video.srcObject = remoteStream;
            this.options.media.remote.video.play().catch(function () {
                _this.logger.log("play was rejected");
            });
        }
        else if (this.audio) {
            this.options.media.remote.audio.srcObject = remoteStream;
            this.options.media.remote.audio.play().catch(function () {
                _this.logger.log("play was rejected");
            });
        }
    };
    Simple.prototype.setupLocalMedia = function () {
        if (!this.session) {
            this.logger.warn("No session to set local media on");
            return;
        }
        if (this.video && this.options.media.local && this.options.media.local.video) {
            var pc = this.session.sessionDescriptionHandler.peerConnection;
            var localStream_1;
            if (pc.getSenders) {
                localStream_1 = new MediaStream();
                pc.getSenders().forEach(function (sender) {
                    var track = sender.track;
                    if (track && track.kind === "video") {
                        localStream_1.addTrack(track);
                    }
                });
            }
            else {
                localStream_1 = pc.getLocalStreams()[0];
            }
            this.options.media.local.video.srcObject = localStream_1;
            this.options.media.local.video.volume = 0;
            this.options.media.local.video.play();
        }
    };
    Simple.prototype.cleanupMedia = function () {
        if (this.video) {
            this.options.media.remote.video.srcObject = null;
            this.options.media.remote.video.pause();
            if (this.options.media.local && this.options.media.local.video) {
                this.options.media.local.video.srcObject = null;
                this.options.media.local.video.pause();
            }
        }
        if (this.audio) {
            this.options.media.remote.audio.srcObject = null;
            this.options.media.remote.audio.pause();
        }
    };
    Simple.prototype.setupSession = function () {
        var _this = this;
        if (!this.session) {
            this.logger.warn("No session to set up");
            return;
        }
        this.state = SimpleStatus.STATUS_NEW;
        this.emit("new", this.session);
        this.session.on("progress", function () { return _this.onProgress(); });
        this.session.on("accepted", function () { return _this.onAccepted(); });
        this.session.on("rejected", function () { return _this.onEnded(); });
        this.session.on("failed", function () { return _this.onFailed(); });
        this.session.on("terminated", function () { return _this.onEnded(); });
    };
    Simple.prototype.destroyMedia = function () {
        if (this.session && this.session.sessionDescriptionHandler) {
            this.session.sessionDescriptionHandler.close();
        }
    };
    Simple.prototype.toggleMute = function (mute) {
        if (!this.session) {
            this.logger.warn("No session to toggle mute");
            return;
        }
        var pc = this.session.sessionDescriptionHandler.peerConnection;
        if (pc.getSenders) {
            pc.getSenders().forEach(function (sender) {
                if (sender.track) {
                    sender.track.enabled = !mute;
                }
            });
        }
        else {
            pc.getLocalStreams().forEach(function (stream) {
                stream.getAudioTracks().forEach(function (track) {
                    track.enabled = !mute;
                });
                stream.getVideoTracks().forEach(function (track) {
                    track.enabled = !mute;
                });
            });
        }
    };
    Simple.prototype.onAccepted = function () {
        var _this = this;
        if (!this.session) {
            this.logger.warn("No session for accepting");
            return;
        }
        this.state = SimpleStatus.STATUS_CONNECTED;
        this.emit("connected", this.session);
        this.setupLocalMedia();
        this.setupRemoteMedia();
        if (this.session.sessionDescriptionHandler) {
            this.session.sessionDescriptionHandler.on("addTrack", function () {
                _this.logger.log("A track has been added, triggering new remoteMedia setup");
                _this.setupRemoteMedia();
            });
            this.session.sessionDescriptionHandler.on("addStream", function () {
                _this.logger.log("A stream has been added, trigger new remoteMedia setup");
                _this.setupRemoteMedia();
            });
        }
        this.session.on("dtmf", function (request, dtmf) {
            _this.emit("dtmf", dtmf.tone);
        });
        this.session.on("bye", function () { return _this.onEnded(); });
    };
    Simple.prototype.onProgress = function () {
        this.state = SimpleStatus.STATUS_CONNECTING;
        this.emit("connecting", this.session);
    };
    Simple.prototype.onFailed = function () {
        this.onEnded();
    };
    Simple.prototype.onEnded = function () {
        this.state = SimpleStatus.STATUS_COMPLETED;
        this.emit("ended", this.session);
        this.cleanupMedia();
    };
    Simple.C = SimpleStatus;
    return Simple;
}(events_1.EventEmitter));
exports.Simple = Simple;


/***/ })
/******/ ]);
});