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