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-- Gemeinschaft 5 module: conference class
-- (c) AMOOMA GmbH 2013
--
module(...,package.seeall)
Conference = {}
-- create conference object
function Conference.new(self, arg)
arg = arg or {}
object = arg.object or {}
setmetatable(object, self);
self.__index = self;
self.class = 'conference';
self.log = arg.log;
self.database = arg.database;
self.record = arg.record;
return object;
end
function Conference.settings_get(self)
require 'common.array';
require 'common.configuration_table';
local configuration = common.configuration_table.get(self.database, 'conferences');
if not configuration then
return nil;
end
local parameters = configuration.parameters or {};
local settings = configuration.settings or {};
settings.members_max = settings.members_max or tonumber(parameters['max-members']) or 100;
settings.pin_length_max = tonumber(settings.pin_length_max) or 10;
settings.pin_length_min = tonumber(settings.pin_length_min) or 2;
settings.pin_timeout = tonumber(settings.pin_timeout) or 4000;
settings.announcement_max_length = tonumber(settings.announcement_max_length) or 10;
settings.announcement_silence_threshold = tonumber(settings.announcement_silence_threshold) or 500;
settings.announcement_silence_length = tonumber(settings.announcement_silence_length) or 3;
settings.flags = settings.flags or { waste = true };
settings.pin_sound = parameters['pin-sound'];
settings.pin_bad_sound = parameters['bad-pin-sound'];
settings.key_enter = parameters.key_enter or '#';
settings.phrase_welcome = settings.phrase_welcome or 'conference_welcome';
settings.phrase_goodbye = settings.phrase_goodbye or 'conference_goodbye';
settings.phrase_record_name = settings.phrase_record_name or 'conference_record_name';
settings.spool_dir = settings.spool_dir or '/var/spool/freeswitch';
return settings;
end
function Conference.find_by_id(self, id)
local sql_query = 'SELECT *, (NOW() >= `start` AND NOW() <= `end`) AS `open_now` FROM `conferences` WHERE `id`= ' .. tonumber(id) .. ' LIMIT 1';
local conference = nil;
self.database:query(sql_query, function(conference_entry)
conference = Conference:new(self);
conference.record = conference_entry;
conference.id = tonumber(conference_entry.id);
conference.identifier = 'conference' .. conference.id;
conference.uuid = conference_entry.uuid;
conference.pin = conference_entry.pin;
conference.open_for_public = common.str.to_b(conference_entry.open_for_anybody);
conference.announce_entering = common.str.to_b(conference_entry.announce_new_member_by_name);
conference.announce_leaving = common.str.to_b(conference_entry.announce_left_member_by_name);
if not common.str.blank(conference_entry.open_now) then
conference.open_now = common.str.to_b(conference_entry.open_now);
end
conference.settings = self:settings_get();
if conference.settings then
conference.settings.members_max = tonumber(conference.record.max_members) or conference.settings.members_max;
else
conference.log:error('CONFERENCE - no basic configuration');
end
end)
return conference;
end
function Conference.find_invitee_by_numbers(self, phone_numbers)
if not self.record then
return false;
end
local sql_query = 'SELECT `a`.* \
FROM `conference_invitees` `a` \
JOIN `phone_numbers` `b` ON `b`.`phone_numberable_id` = `a`.`id` \
WHERE `b`.`phone_numberable_type` = "ConferenceInvitee" \
AND `a`.`conference_id` = ' .. self.id .. ' \
AND `b`.`number` IN ("' .. table.concat(phone_numbers, "','") .. '") \
LIMIT 1';
local invitee = nil;
self.database:query(sql_query, function(invitee_entry)
invitee = invitee_entry;
end)
return invitee;
end
function Conference.members_count(self)
return tonumber(self.caller:result('conference ' .. self.identifier .. ' list count')) or 0;
end
function Conference.check_pin(self, pin)
local digits = '';
for i = 1, 3 do
if digits == pin then
self.caller:send_display('PIN: OK');
break
elseif digits ~= "" then
self.caller:send_display('PIN: wrong');
if self.settings.pin_bad_sound then
self.caller:playback(self.settings.pin_bad_sound);
else
self.caller.session:sayPhrase('conference_bad_pin');
end
end
self.caller:send_display('Enter PIN');
digits = self.caller.session:read(self.settings.pin_length_min, self.settings.pin_length_max, self.settings.pin_sound, self.settings.pin_timeout, self.settings.key_enter);
end
if digits ~= pin then
return false
end
return true;
end
function Conference.check_ownership(self)
local auth_account_owner = common.array.try(self.caller, 'auth_account.owner');
if not auth_account_owner then
return false;
end
if tonumber(self.record.conferenceable_id) == auth_account_owner.id and self.record.conferenceable_type:lower() == auth_account_owner.class then
return true;
end
end
function Conference.record_name(self)
if not self.announce_entering and not announce_leaving then
return nil;
end
self.caller:send_display('Record name');
local name_file = self.settings.spool_dir .. '/conference_caller_name_' .. self.caller.uuid .. '.wav';
self.caller.session:sayPhrase(self.settings.phrase_record_name);
self.caller.session:recordFile(name_file, self.settings.announcement_max_length, self.settings.announcement_silence_threshold, self.settings.announcement_max_length);
self.caller:playback(name_file);
return name_file;
end
function Conference.playback(self, file_name)
self.caller:execute('set',"result=${conference(" .. self.identifier .. " play ".. file_name .. ")}");
end
function Conference.enter(self, caller, domain)
self.caller = caller;
local members = self:members_count();
self.log:info('CONFERENCE ', self.id, ' - open_for_public: ', self.open_for_public, ', open_now: ', self.open_now, ', members: ', members, ', members_max: ', self.settings.members_max);
if self.open_now == false then
self.log:notice('CONFERENCE ', self.id, ' - currently closed, start: ', self.record.start, ', end: ', self.record['end']);
return { continue = false, code = 493, phrase = 'Conference closed' };
end
if members >= self.settings.members_max then
self.log:notice('CONFERENCE ', self.id, ' - full, members: ', members, ', members_max: ', self.settings.members_max);
return { continue = false, code = 493, phrase = 'Conference closed' };
end
local invitee = self:find_invitee_by_numbers(caller.caller_phone_numbers);
if invitee then
self.settings.flags.mute = not common.str.to_b(invitee.speaker);
self.settings.flags.moderator = common.str.to_b(invitee.moderator);
self.log:info('CONFERENCE ', self.id, ' - invitee=', invitee.id, '/', invitee.uuid, ', speaker: ', not self.settings.flags.mute, ', moderator: ', self.settings.flags.moderator);
self.pin = invitee.pin;
elseif self:check_ownership() then
self.settings.flags.moderator = true;
self.pin = nil;
self.log:info('CONFERENCE ', self.id, ' - owner authenticated: ', self.caller.auth_account.owner.class,'=', self.caller.auth_account.owner.id, '/', self.caller.auth_account.owner.uuid, ', speaker: ', not self.settings.flags.mute, ', moderator: ', self.settings.flags.moderator);
elseif not self.open_for_public then
self.log:notice('CONFERENCE ', self.id, ' - not open for public');
return { continue = false, code = 493, phrase = 'Conference closed' };
end
caller:answer();
if not common.str.blank(self.pin) and not self:check_pin(self.pin) then
self.log:notice('CONFERENCE ', self.id, ' - PIN wrong');
if self.settings.phrase_goodbye then
caller.session:sayPhrase(self.settings.phrase_goodbye);
end
return { continue = false, code = 493, phrase = 'Not authorized' };
end
self.caller:send_display('Welcome to ' .. tostring(self.record.name));
caller:sleep(1000);
if self.settings.phrase_welcome then
caller.session:sayPhrase('conference_welcome');
end
local name_file = self:record_name(caller);
if name_file then
if self.announce_entering then
members = self:members_count();
if members > 0 then
caller.session:sayPhrase('conference_has_joined', name_file);
end
end
end
self.caller:send_display(tostring(self.record.name));
local result = caller:execute('conference', self.identifier .. "@profile_" .. self.identifier .. "++flags{" .. common.array.keys_to_s(self.settings.flags, '|') .. "}");
self.caller:send_display('Goodbye');
if self.settings.phrase_goodbye then
caller.session:sayPhrase(self.settings.phrase_goodbye);
end
if name_file then
if self.announce_leaving then
members = self:members_count();
if members > 0 then
if members == 1 then
caller:sleep(3000);
end
caller.session:sayPhrase('conference_has_left', name_file);
end
end
os.remove(name_file);
end
return { continue = false, code = 200, phrase = 'OK' }
end
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