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-- Gemeinschaft 5 module: gateway class
-- (c) AMOOMA GmbH 2013
--
module(...,package.seeall)
Gateway = {}
-- Create Gateway object
function Gateway.new(self, arg)
arg = arg or {}
object = arg.object or {}
setmetatable(object, self);
self.__index = self;
self.class = 'gateway';
self.log = arg.log;
self.database = arg.database;
self.record = arg.record;
self.GATEWAY_PREFIX = 'gateway';
return object;
end
function Gateway.list(self, technology)
technology = technology or 'sip';
local sql_query = 'SELECT * FROM `gateways` WHERE (`outbound` IS TRUE OR `inbound` IS TRUE) AND `technology` = "' .. technology .. '"';
local gateways = {};
self.database:query(sql_query, function(entry)
table.insert(gateways, entry);
end)
return gateways;
end
function Gateway.find_by_id(self, id)
local sql_query = 'SELECT * FROM `gateways` WHERE `id`= ' .. tonumber(id) .. ' LIMIT 1';
local gateway = nil;
self.database:query(sql_query, function(entry)
require 'common.str';
gateway = Gateway:new(self);
gateway.record = entry;
gateway.id = tonumber(entry.id);
gateway.name = entry.name;
gateway.technology = entry.technology;
gateway.outbound = common.str.to_b(entry.outbound);
gateway.inbound = common.str.to_b(entry.inbound);
end)
if gateway then
gateway.settings = self:config_table_get('gateway_settings', gateway.id);
end
return gateway;
end
function Gateway.find_by_name(self, name)
local gateway_name = name:gsub('([^%a%d%._%+])', '');
local sql_query = 'SELECT * FROM `gateways` WHERE `name`= "' .. gateway_name .. '" LIMIT 1';
local gateway = nil;
self.database:query(sql_query, function(entry)
require 'common.str';
gateway = Gateway:new(self);
gateway.record = entry;
gateway.id = tonumber(entry.id);
gateway.name = entry.name;
gateway.technology = entry.technology;
gateway.outbound = common.str.to_b(entry.outbound);
gateway.inbound = common.str.to_b(entry.inbound);
end)
if gateway then
gateway.settings = self:config_table_get('gateway_settings', gateway.id);
end
return gateway;
end
function Gateway.call_url(self, destination_number)
if self.technology == 'sip' then
return 'sofia/gateway/' .. self.GATEWAY_PREFIX .. self.id .. '/' .. tostring(destination_number);
elseif self.technology == 'xmpp' then
local destination_str = tostring(destination_number);
if self.settings.destination_domain then
destination_str = destination_str .. '@' .. self.settings.destination_domain;
end
return 'dingaling/' .. self.GATEWAY_PREFIX .. self.id .. '/' .. destination_str;
end
return '';
end
function Gateway.authenticate(self, caller, technology)
local sql_query = 'SELECT `c`.`name`, `c`.`id`, `a`.`value` `auth_source`, `b`.`value` `auth_pattern` \
FROM `gateway_settings` `a` \
INNER JOIN `gateway_settings` `b` \
ON (`a`.`gateway_id` = `b`.`gateway_id` AND `a`.`name` = "auth_source" AND `b`.`name` = "auth_pattern" ) \
LEFT JOIN `gateways` `c` \
ON (`a`.`gateway_id` = `c`.`id`) \
WHERE `c`.`inbound` IS TRUE';
if technology then
sql_query = sql_query .. ' AND `c`.`technology` = "' .. tostring(technology) .. '"';
end
local gateway = false;
self.database:query(sql_query, function(entry)
if caller:to_s(entry.auth_source):match(entry.auth_pattern) then
gateway = entry;
return;
end
end)
return gateway;
end
function Gateway.profile_get(self, gateway_id)
local sql_query = 'SELECT `value` FROM `gateway_settings` WHERE `gateway_id` = ' .. tonumber(gateway_id) .. ' AND `name` = "profile" LIMIT 1';
return self.database:query_return_value(sql_query);
end
function Gateway.config_table_get(self, config_table, gateway_id)
require 'common.str'
local sql_query = 'SELECT * FROM `'.. config_table ..'` WHERE `gateway_id` = ' .. tonumber(gateway_id);
local settings = {};
self.database:query(sql_query, function(entry)
local p_class_type = common.str.strip(entry.class_type):lower();
local p_name = common.str.strip(entry.name):lower();
if p_class_type == 'boolean' then
settings[p_name] = common.str.to_b(entry.value);
elseif p_class_type == 'integer' then
settings[p_name] = common.str.to_i(entry.value);
else
settings[p_name] = tostring(entry.value);
end
end)
return settings
end
function Gateway.parameters_build(self, gateway_id, technology)
local settings = self:config_table_get('gateway_settings', gateway_id);
require 'common.str'
local parameters = {};
if technology == 'sip' then
parameters.realm = settings.domain;
parameters.extension = 'auto_to_user';
if common.str.blank(settings.username) then
parameters.username = 'gateway' .. gateway_id;
parameters.register = false;
else
parameters.username = settings.username;
parameters.register = true;
end
if not common.str.blank(settings.register) then
parameters.register = common.str.to_b(settings.register);
end
if common.str.blank(settings.password) then
parameters.password = 'gateway' .. gateway_id;
else
parameters.password = settings.password;
end
parameters['extension-in-contact'] = true;
if common.str.blank(settings.contact) then
parameters['extension'] = 'gateway' .. gateway_id;
else
parameters['extension'] = settings.contact;
end
elseif technology == 'xmpp' then
parameters.message = 'Gemeinschaft 5 by AMOOMA';
parameters.dialplan = 'XML';
parameters.context = 'default';
parameters['rtp-ip'] = 'auto';
parameters['auto-login'] = 'true';
parameters.sasl = 'plain';
parameters.tls = 'true';
parameters['use-rtp-timer'] = 'true';
parameters.vad = 'both';
parameters.use_jingle = 'true';
parameters['candidate-acl'] = 'wan.auto';
parameters.name = self.GATEWAY_PREFIX .. gateway_id;
parameters.server = settings.server;
parameters.login = settings.login;
parameters.password = settings.password;
parameters.exten = settings.inbound_number or parameters.name;
end
for key, value in pairs(self:config_table_get('gateway_parameters', gateway_id)) do
parameters[key] = value;
end
return parameters;
end
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