<?php /* * StatusNet - the distributed open-source microblogging tool * Copyright (C) 2008, 2009, StatusNet, Inc. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); } require_once(INSTALLDIR.'/lib/queuehandler.php'); define('PING_INTERVAL', 120); /** * Common superclass for all XMPP-using queue handlers. They all need to * service their message queues on idle, and forward any incoming messages * to the XMPP listener connection. So, we abstract out common code to a * superclass. */ class XmppQueueHandler extends QueueHandler { var $pingid = 0; var $lastping = null; function start() { # Low priority; we don't want to receive messages $this->log(LOG_INFO, "INITIALIZE"); $this->conn = jabber_connect($this->_id.$this->transport()); if (empty($this->conn)) { $this->log(LOG_ERR, "Couldn't connect to server."); return false; } $this->conn->addEventHandler('message', 'forward_message', $this); $this->conn->addEventHandler('reconnect', 'handle_reconnect', $this); $this->conn->setReconnectTimeout(600); jabber_send_presence("Send me a message to post a notice", 'available', null, 'available', -1); return !is_null($this->conn); } function timeout() { return 10; } function handle_reconnect(&$pl) { $this->log(LOG_NOTICE, 'reconnected'); $this->conn->processUntil('session_start'); $this->conn->presence(null, 'available', null, 'available', -1); } function idle($timeout=0) { # Process the queue for as long as needed try { if ($this->conn) { $this->log(LOG_DEBUG, "Servicing the XMPP queue."); $this->conn->processTime($timeout); $now = time(); if (empty($this->lastping) || $now - $this->lastping > PING_INTERVAL) { $this->sendPing(); $this->lastping = $now; } } } catch (XMPPHP_Exception $e) { $this->log(LOG_ERR, "Got an XMPPHP_Exception: " . $e->getMessage()); die($e->getMessage()); } } function sendPing() { $jid = jabber_daemon_address().'/'.$this->_id.$this->transport(); $server = common_config('xmpp', 'server'); if (!isset($this->pingid)) { $this->pingid = 0; } else { $this->pingid++; } $this->log(LOG_DEBUG, "Sending ping #{$this->pingid}"); $this->conn->send("<iq from='{$jid}' to='{$server}' id='ping_{$this->pingid}' type='get'><ping xmlns='urn:xmpp:ping'/></iq>"); } function forward_message(&$pl) { if ($pl['type'] != 'chat') { $this->log(LOG_DEBUG, 'Ignoring message of type ' . $pl['type'] . ' from ' . $pl['from']); return; } $listener = $this->listener(); if (strtolower($listener) == strtolower($pl['from'])) { $this->log(LOG_WARNING, 'Ignoring loop message.'); return; } $this->log(LOG_INFO, 'Forwarding message from ' . $pl['from'] . ' to ' . $listener); $this->conn->message($this->listener(), $pl['body'], 'chat', null, $this->ofrom($pl['from'])); } function ofrom($from) { $address = "<addresses xmlns='http://jabber.org/protocol/address'>\n"; $address .= "<address type='ofrom' jid='$from' />\n"; $address .= "</addresses>\n"; return $address; } function listener() { if (common_config('xmpp', 'listener')) { return common_config('xmpp', 'listener'); } else { return jabber_daemon_address() . '/' . common_config('xmpp','resource') . 'daemon'; } } function getSockets() { return array($this->conn->getSocket()); } }