fusionpbx-ldap/app/scripts/resources/scripts/page.lua

259 lines
9.6 KiB
Lua

-- page.lua
-- Part of FusionPBX
-- Copyright (C) 2010-2022 Mark J Crane <markjcrane@fusionpbx.com>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- 1. Redistributions of source code must retain the above copyright notice,
-- this list of conditions and the following disclaimer.
--
-- 2. Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-- INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-- AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-- AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
-- OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.
--set default settings
pin_number = "";
max_tries = "3";
digit_timeout = "3000";
--define the trim function
require "resources.functions.trim";
--define the explode function
require "resources.functions.explode";
--define the split function
require "resources.functions.split";
--iterator over numbers.
local function each_number(value)
local begin_value, end_value = split_first(value, "-", true)
if (not end_value) or (begin_value == end_value) then
return function()
local result = begin_value
begin_value = nil
return result
end
end
if string.find(begin_value, "^0") then
assert(#begin_value == #end_value, "number in range with leading `0` should have same length")
end
local number_length = ("." .. tostring(#begin_value))
begin_value, end_value = tonumber(begin_value), tonumber(end_value)
assert(begin_value and end_value and (begin_value <= end_value), "Invalid range: " .. value)
return function()
value, begin_value = begin_value, begin_value + 1
if value > end_value then return end
return string.format("%" .. number_length .. "d", value)
end
end
--make sure the session is ready
if ( session:ready() ) then
--answer the call
session:answer();
--get the dialplan variables and set them as local variables
destination_number = session:getVariable("destination_number");
pin_number = session:getVariable("pin_number");
domain_name = session:getVariable("domain_name");
sounds_dir = session:getVariable("sounds_dir");
destinations = session:getVariable("destinations");
rtp_secure_media = session:getVariable("rtp_secure_media");
if (destinations == nil) then
destinations = session:getVariable("extension_list");
end
destination_table = explode(",",destinations);
caller_id_name = session:getVariable("caller_id_name");
caller_id_number = session:getVariable("caller_id_number");
sip_from_user = session:getVariable("sip_from_user");
mute = session:getVariable("mute");
--determine whether to check if the destination is available
check_destination_status = session:getVariable("check_destination_status");
if (not check_destination_status) then check_destination_status = 'false'; end
--set the type of auto answer
auto_answer = session:getVariable("auto_answer");
if (not auto_answer) then auto_answer = 'call_info'; end
if (auto_answer == 'call_info') then
auto_answer = "sip_h_Call-Info=<sip:"..domain_name..">;answer-after=0";
end
if (auto_answer == 'sip_auto_answer') then
auto_answer = "sip_auto_answer=true";
end
--set sip header Alert-Info
alert_info = session:getVariable("alert_info");
if (not alert_info) then alert_info = 'ring_answer'; end
if (alert_info == 'auto_answer') then
alert_info = "sip_h_Alert-Info='Auto Answer'";
elseif (alert_info == 'ring_answer') then
alert_info = "sip_h_Alert-Info='Ring Answer'";
else
alert_info = "sip_h_Alert-Info='"..alert_info.."'";
end
--set the sounds path for the language, dialect and voice
default_language = session:getVariable("default_language");
default_dialect = session:getVariable("default_dialect");
default_voice = session:getVariable("default_voice");
if (not default_language) then default_language = 'en'; end
if (not default_dialect) then default_dialect = 'us'; end
if (not default_voice) then default_voice = 'callie'; end
--set rtp_secure_media to an empty string if not provided.
if (rtp_secure_media == nil) then
rtp_secure_media = 'false';
end
--define the conference name
local conference_profile = "page";
local conference_name = "page-"..destination_number.."@"..domain_name;
local conference_bridge = conference_name.."@"..conference_profile;
--set the caller id
if (caller_id_name) then
--caller id name provided do nothing
else
effective_caller_id_name = session:getVariable("effective_caller_id_name");
caller_id_name = effective_caller_id_name;
end
if (caller_id_number) then
--caller id number provided do nothing
else
effective_caller_id_number = session:getVariable("effective_caller_id_number");
caller_id_number = effective_caller_id_number;
end
--set conference flags
if (mute == "true") then
flags = "flags{mute}";
else
flags = "flags{}";
end
--if the pin number is provided then require it
if (pin_number) then
--sleep
session:sleep(500);
--get the user pin number
min_digits = 2;
max_digits = 20;
digits = session:playAndGetDigits(min_digits, max_digits, max_tries, digit_timeout, "#", "phrase:voicemail_enter_pass:#", "", "\\d+");
--validate the user pin number
pin_number_table = explode(",",pin_number);
for index,pin_number in pairs(pin_number_table) do
if (digits == pin_number) then
--set the variable to true
auth = true;
--set the authorized pin number that was used
session:setVariable("pin_number", pin_number);
--end the loop
break;
end
end
--if not authorized play a message and then hangup
if (not auth) then
session:streamFile("phrase:voicemail_fail_auth:#");
session:hangup("NORMAL_CLEARING");
return;
end
end
--log the destinations
freeswitch.consoleLog("NOTICE", "[page] destinations "..destinations.." available\n");
--create the api object
api = freeswitch.API();
--get the channels
if (check_destination_status == 'true') then
cmd_string = "show channels";
channel_result = api:executeString(cmd_string);
end
--originate the calls
destination_count = 0;
for index,value in pairs(destination_table) do
for destination in each_number(value) do
--get the destination required for number-alias
destination = api:execute("user_data", destination .. "@" .. domain_name .. " attr id");
--prevent calling the user that initiated the page
if (sip_from_user ~= destination) then
if (check_destination_status == 'true') then
--detect if the destination is available or busy
destination_status = 'available';
channel_array = explode("\n", channel_result);
for index,row in pairs(channel_array) do
if string.find(row, destination..'@'..domain_name, nil, true) then
destination_status = 'busy';
break;
end
end
--if available then page then originate the call with auto answer
if (destination_status == 'available') then
freeswitch.consoleLog("NOTICE", "[page] destination "..destination.." available\n");
if destination == sip_from_user then
--this destination is the caller that initated the page
else
--originate the call
cmd_string = "bgapi originate {"..auto_answer..","..alert_info..",hangup_after_bridge=false,rtp_secure_media="..rtp_secure_media..",origination_caller_id_name='"..caller_id_name.."',origination_caller_id_number="..caller_id_number.."}user/"..destination.."@"..domain_name.." conference:"..conference_bridge.."+"..flags.." inline";
api:executeString(cmd_string);
destination_count = destination_count + 1;
end
end
else
--endpoint determines what to do with the call when the destination is active
freeswitch.consoleLog("NOTICE", "[page] endpoint determines what to do if the it has an active call.\n");
if destination == sip_from_user then
--this destination is the caller that initated the page
else
--originate the call
cmd_string = "bgapi originate {"..auto_answer..","..alert_info..",hangup_after_bridge=false,rtp_secure_media="..rtp_secure_media..",origination_caller_id_name='"..caller_id_name.."',origination_caller_id_number="..caller_id_number.."}user/"..destination.."@"..domain_name.." conference:"..conference_bridge.."+"..flags.." inline";
api:executeString(cmd_string);
destination_count = destination_count + 1;
end
end
end
end
end
--send main call to the conference room
if (destination_count > 0) then
if (session:getVariable("moderator") == "true") then
moderator_flag = ",moderator";
else
moderator_flag = "";
end
session:execute("conference", conference_bridge.."+flags{endconf"..moderator_flag.."}");
else
session:execute("playback", "tone_stream://%(500,500,480,620);loops=3");
end
end