<?php /** * Laconica, the distributed open-source microblogging tool * * Plugin to do "real time" updates using Comet/Bayeux * * PHP version 5 * * LICENCE: 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/>. * * @category Plugin * @package Laconica * @author Evan Prodromou <evan@controlyourself.ca> * @copyright 2009 Control Yourself, Inc. * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://laconi.ca/ */ if (!defined('LACONICA')) { exit(1); } require_once INSTALLDIR.'/plugins/Realtime/RealtimePlugin.php'; /** * Plugin to do realtime updates using Meteor * * @category Plugin * @package Laconica * @author Evan Prodromou <evan@controlyourself.ca> * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 * @link http://laconi.ca/ */ class MeteorPlugin extends RealtimePlugin { public $webserver = null; public $webport = null; public $controlport = null; public $controlserver = null; public $channelbase = null; protected $_socket = null; function __construct($webserver=null, $webport=4670, $controlport=4671, $controlserver=null, $channelbase='') { global $config; $this->webserver = (empty($webserver)) ? $config['site']['server'] : $webserver; $this->webport = $webport; $this->controlport = $controlport; $this->controlserver = (empty($controlserver)) ? $webserver : $controlserver; $this->channelbase = $channelbase; parent::__construct(); } function _getScripts() { $scripts = parent::_getScripts(); $scripts[] = 'http://'.$this->webserver.(($this->webport == 80) ? '':':'.$this->webport).'/meteor.js'; $scripts[] = common_path('plugins/Meteor/meteorupdater.js'); return $scripts; } function _updateInitialize($timeline, $user_id) { $script = parent::_updateInitialize($timeline, $user_id); return $script." MeteorUpdater.init(\"$this->webserver\", $this->webport, \"{$timeline}\");"; } function _connect() { $controlserver = (empty($this->controlserver)) ? $this->webserver : $this->controlserver; // May throw an exception. $this->_socket = stream_socket_client("tcp://{$controlserver}:{$this->controlport}"); if (!$this->_socket) { throw new Exception("Couldn't connect to {$controlserver} on {$this->controlport}"); } } function _publish($channel, $message) { $message = json_encode($message); $message = addslashes($message); $cmd = "ADDMESSAGE $channel $message\n"; $cnt = fwrite($this->_socket, $cmd); $result = fgets($this->_socket); if (preg_match('/^ERR (.*)$/', $result, $matches)) { throw new Exception('Error adding meteor message "'.$matches[1].'"'); } // TODO: parse and deal with result } function _disconnect() { $cnt = fwrite($this->_socket, "QUIT\n"); @fclose($this->_socket); } // Meteord flips out with default '/' separator function _pathToChannel($path) { if (!empty($this->channelbase)) { array_unshift($path, $this->channelbase); } return implode('-', $path); } }