FusionPBX. Use Lua code to build CF dialplan from Web UI

call_forward_api.lua

local Database        = require "resources.functions.database"
local route_to_bridge = require "resources.functions.route_to_bridge"
local json            = require "resources.functions.lunajson"

local function decode_value(v)
	return (string.gsub(v, [[\u00(%x%x)]], {
		['22'] = '"';
		['27'] = "'";
		['26'] = "&";
		['3C'] = "<"; ['3c'] = "<";
		['3E'] = ">"; ['3e'] = ">";
		
	}))
end

local function decode_values(t)
	for k, v in pairs(t) do
		if type(v) == 'string' then
			t[k] = decode_value(v)
		elseif type(v) == 'table' then
			decode_values(v)
		end
	end
	return t
end

local function decode_json(s)
	-- tread NULL as empty string
	return decode_values(json.decode(s, nil, ''))
end

local domain_uuid = argv[1]

local params = decode_json(argv[2])

local dbh = Database.new('system')

local bridge = route_to_bridge(dbh, domain_uuid, params)

if bridge then
	table.insert(bridge, 1, bridge.bridge)
	bridge.bridge = nil
end

stream:write(
	json.encode(bridge)
)

--[[ PHP function 
	function event_socket_route_to_bridge($domain_uuid, $variables) {
		//connect to fs
			$fp = event_socket_create($_SESSION['event_socket_ip_address'], $_SESSION['event_socket_port'], $_SESSION['event_socket_password']);
			if (!$fp) {
				return false;
			}
		//call Lua command
			if ($fp) {
				//encode variables to pass as arguments (require PHP >= 5.3.0)
					$variables = json_encode($variables, JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT);
				//build and send the command to freeswitch
					$switch_cmd = "lua call_forward_api.lua '$domain_uuid' '$variables'";
					$switch_result = trim(event_socket_request($fp, 'api '.$switch_cmd));
					fclose($fp);
				//check result
					if (substr($switch_result, 0, 3)  == "-ERR") {
						return false;
					}
				//decode result
					$bridge = json_decode($switch_result);
				//return value
					if (empty($bridge)) {
						return false;
					}
					return $bridge;
			}
		//can not create directory
			return false;
	}
]]

-- usage from call_forward PHP class
--[[
	$bridge = event_socket_route_to_bridge($_SESSION['domain_uuid'], Array(
		'destination_number' => $this->forward_all_destination,
		'${user_exists}' => 'false',
		'${toll_allow}' => $this->toll_allow,
		'${caller_id_number}' => $this->extension,
	));
	if (($bridge === false) || (empty($bridge[0]))) { {
		$dial_string .= 'error/NO_ROUTE_DESTINATION';
	}
	else {
		$dial_string .= $bridge[0];
	}
]]