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