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Diffstat (limited to 'plugins/Meteor/MeteorPlugin.php')
| -rw-r--r-- | plugins/Meteor/MeteorPlugin.php | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/plugins/Meteor/MeteorPlugin.php b/plugins/Meteor/MeteorPlugin.php new file mode 100644 index 000000000..d54d565bd --- /dev/null +++ b/plugins/Meteor/MeteorPlugin.php @@ -0,0 +1,120 @@ +<?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); + } +} |