<?php
/*
- * Laconica - a distributed open-source microblogging tool
- * Copyright (C) 2008, Controlez-Vous, Inc.
+ * 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-if (!defined('LACONICA')) { exit(1); }
+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
+ * 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 {
-
- function start() {
- # Low priority; we don't want to receive messages
- $this->log(LOG_INFO, "INITIALIZE");
- $this->conn = jabber_connect($this->_id);
- if ($this->conn) {
- $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 handle_reconnect(&$pl) {
- $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 {
- $this->conn->processTime($timeout);
- } catch (XMPPHP_Exception $e) {
- $this->log(LOG_ERR, "Got an XMPPHP_Exception: " . $e->getMessage());
- die($e->getMessage());
- }
- }
-
- 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') . '-listener';
- }
- }
+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());
+ }
}