first pass at Comet plugin; doesn't yet update
This commit is contained in:
Evan Prodromou
parent
83ba1b0b5e
commit
5e6eb27f84
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@ -0,0 +1,138 @@
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<?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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/**
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* Plugin to do realtime updates using Comet
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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 CometPlugin extends Plugin
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{
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var $server = null;
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function __construct($server=null)
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{
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$this->server = $server;
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parent::__construct();
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}
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function onEndShowScripts($action)
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{
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$timeline = null;
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switch ($action->trimmed('action')) {
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case 'public':
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$timeline = '/timelines/public';
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break;
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default:
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return true;
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}
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$action->element('script', array('type' => 'text/javascript',
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'src' => common_path('plugins/Comet/jquery.comet.js')),
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' ');
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$action->elementStart('script', array('type' => 'text/javascript'));
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$action->raw("var _timelineServer = \"$this->server\"; ".
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"var _timeline = \"$timeline\";");
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$action->elementEnd('script');
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$action->element('script', array('type' => 'text/javascript',
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'src' => common_path('plugins/Comet/updatetimeline.js')),
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' ');
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return true;
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}
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function onEndNoticeSave($notice)
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{
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$this->log(LOG_INFO, "Called for save notice.");
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$timelines = array();
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// XXX: Add other timelines; this is just for the public one
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if ($notice->is_local ||
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($notice->is_local == 0 && !common_config('public', 'localonly'))) {
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$timelines[] = '/timelines/public';
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}
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if (count($timelines) > 0) {
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// Require this, since we need it
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require_once(INSTALLDIR.'/plugins/Comet/bayeux.class.inc.php');
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$json = $this->noticeAsJson($notice);
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$this->log(LOG_DEBUG, "JSON = '$json'");
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// Bayeux? Comet? Huh? These terms confuse me
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$bay = new Bayeux($this->server);
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foreach ($timelines as $timeline) {
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$this->log(LOG_INFO, "Posting notice $notice->id to '$timeline'.");
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$bay->publish($timeline, $json);
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$this->log(LOG_DEBUG, "Done posting notice $notice->id to '$timeline'.");
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}
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$bay = NULL;
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}
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$this->log(LOG_DEBUG, "All done.");
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return true;
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}
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function noticeAsJson($notice)
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{
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// FIXME: this code should be abstracted to a neutral third
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// party, like Notice::asJson(). I'm not sure of the ethics
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// of refactoring from within a plugin, so I'm just abusing
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// the TwitterApiAction method. Don't do this unless you're me!
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require_once(INSTALLDIR.'/lib/twitterapi.php');
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$act = new TwitterApiAction('/dev/null');
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$arr = $act->twitter_status_array($notice, true);
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return $arr;
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}
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// Push this up to Plugin
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function log($level, $msg)
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{
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common_log($level, get_class($this) . ': '.$msg);
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}
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}
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@ -0,0 +1,129 @@
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<?php
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/*
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*
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* Phomet: a php comet client
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*
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* Copyright (C) 2008 Morgan 'ARR!' Allen <morganrallen@gmail.com> http://morglog.alleycatracing.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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class Bayeux
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{
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private $oCurl = '';
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private $nNextId = 0;
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public $sUrl = '';
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function __construct($sUrl)
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{
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$this->sUrl = $sUrl;
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$this->oCurl = curl_init();
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$aHeaders = array();
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$aHeaders[] = 'Connection: Keep-Alive';
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curl_setopt($this->oCurl, CURLOPT_URL, $sUrl);
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curl_setopt($this->oCurl, CURLOPT_HTTPHEADER, $aHeaders);
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curl_setopt($this->oCurl, CURLOPT_HEADER, 0);
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curl_setopt($this->oCurl, CURLOPT_POST, 1);
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curl_setopt($this->oCurl, CURLOPT_RETURNTRANSFER,1);
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$this->handShake();
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}
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function __destruct()
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{
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$this->disconnect();
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}
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function handShake()
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{
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$msgHandshake = array();
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$msgHandshake['channel'] = '/meta/handshake';
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$msgHandshake['version'] = "1.0";
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$msgHandshake['minimumVersion'] = "0.9";
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$msgHandshake['supportedConnectionTypes'] = array('long-polling');
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$msgHandshake['id'] = $this->nNextId++;
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($msgHandshake)))));
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$data = curl_exec($this->oCurl);
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if(curl_errno($this->oCurl))
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die("Error: " . curl_error($this->oCurl));
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$oReturn = json_decode($data);
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common_debug(print_r($oReturn, true));
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if (is_array($oReturn)) {
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$oReturn = $oReturn[0];
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}
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$bSuccessful = ($oReturn->successful) ? true : false;
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if($bSuccessful)
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{
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$this->clientId = $oReturn->clientId;
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$this->connect();
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}
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}
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public function connect()
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{
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$aMsg['channel'] = '/meta/connect';
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$aMsg['id'] = $this->nNextId++;
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$aMsg['clientId'] = $this->clientId;
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$aMsg['connectionType'] = 'long-polling';
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($aMsg)))));
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$data = curl_exec($this->oCurl);
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}
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function disconnect()
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{
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$msgHandshake = array();
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$msgHandshake['channel'] = '/meta/disconnect';
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$msgHandshake['id'] = $this->nNextId++;
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$msgHandshake['clientId'] = $this->clientId;
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($msgHandshake)))));
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curl_exec($this->oCurl);
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}
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public function publish($sChannel, $oData)
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{
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if(!$sChannel || !$oData)
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return;
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$aMsg = array();
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$aMsg['channel'] = $sChannel;
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$aMsg['id'] = $this->nNextId++;
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$aMsg['data'] = $oData;
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$aMsg['clientId'] = $this->clientId;
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($aMsg)))));
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$data = curl_exec($this->oCurl);
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// var_dump($data);
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}
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}
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<?php
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/*
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*
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* Phomet: a php comet client
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*
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* Copyright (C) 2008 Morgan 'ARR!' Allen <morganrallen@gmail.com> http://morglog.alleycatracing.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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class Bayeux
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{
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private $oCurl = '';
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private $nNextId = 0;
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public $sUrl = '';
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function __construct($sUrl)
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{
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$this->sUrl = $sUrl;
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$this->oCurl = curl_init();
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$aHeaders = array();
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$aHeaders[] = 'Connection: Keep-Alive';
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curl_setopt($this->oCurl, CURLOPT_URL, $sUrl);
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curl_setopt($this->oCurl, CURLOPT_HTTPHEADER, $aHeaders);
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curl_setopt($this->oCurl, CURLOPT_HEADER, 0);
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curl_setopt($this->oCurl, CURLOPT_POST, 1);
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curl_setopt($this->oCurl, CURLOPT_RETURNTRANSFER,1);
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$this->handShake();
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}
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function __destruct()
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{
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$this->disconnect();
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}
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function handShake()
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{
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$msgHandshake = array();
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$msgHandshake['channel'] = '/meta/handshake';
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$msgHandshake['version'] = "1.0";
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$msgHandshake['minimumVersion'] = "0.9";
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$msgHandshake['id'] = $this->nNextId++;
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($msgHandshake)))));
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$data = curl_exec($this->oCurl);
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if(curl_errno($this->oCurl))
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die("Error: " . curl_error($this->oCurl));
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$oReturn = json_decode($data);
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$oReturn = $oReturn[0];
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$bSuccessful = ($oReturn->successful) ? true : false;
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if($bSuccessful)
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{
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$this->clientId = $oReturn->clientId;
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$this->connect();
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}
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}
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public function connect()
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{
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$aMsg['channel'] = '/meta/connect';
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$aMsg['id'] = $this->nNextId++;
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$aMsg['clientId'] = $this->clientId;
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$aMsg['connectionType'] = 'long-polling';
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($aMsg)))));
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$data = curl_exec($this->oCurl);
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}
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function disconnect()
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{
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$msgHandshake = array();
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$msgHandshake['channel'] = '/meta/disconnect';
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$msgHandshake['id'] = $this->nNextId++;
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$msgHandshake['clientId'] = $this->clientId;
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($msgHandshake)))));
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curl_exec($this->oCurl);
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}
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public function publish($sChannel, $oData)
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{
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if(!$sChannel || !$oData)
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return;
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$aMsg = array();
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$aMsg['channel'] = $sChannel;
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$aMsg['id'] = $this->nNextId++;
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$aMsg['data'] = $oData;
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$aMsg['clientId'] = $this->clientId;
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curl_setopt($this->oCurl, CURLOPT_POSTFIELDS, "message=".urlencode(str_replace('\\', '', json_encode(array($aMsg)))));
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$data = curl_exec($this->oCurl);
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// var_dump($data);
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}
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}
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@ -0,0 +1,363 @@
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(function($)
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{
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var msgHandshake =
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{
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version: '1.0',
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minimumVersion: '0.9',
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channel: '/meta/handshake'
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};
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var oTransport = function()
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{
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this._bXD =
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(($.comet._sUrl.substring(0,4) == 'http') && ($.comet._sUrl.substr(7,location.href.length).replace(/\/.*/, '') != location.host))
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?
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true
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:false;
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this.connectionType = (this._bXD) ? 'callback-polling' : 'long-polling';
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this.startup = function(oReturn)
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{
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if(this._comet._bConnected) return;
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this.tunnelInit();
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};
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this.tunnelInit = function()
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{
|
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var msgConnect =
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{
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channel: '/meta/connect',
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clientId: $.comet.clientId,
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id: String($.comet._nNextId++),
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connectionType: $.comet._oTransport.connectionType
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};
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this.openTunnel(msgConnect);
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};
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this.openTunnel = function(oMsg)
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{
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$.comet._bPolling = true;
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this._send($.comet._sUrl, oMsg, function(sReturn)
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{
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var oReturn = (typeof sReturn != "object") ? (eval('(' + sReturn + ')')) : sReturn;
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$.comet._bPolling = false;
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$.comet.deliver(oReturn);
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$.comet._oTransport.closeTunnel();
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});
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};
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this.closeTunnel = function()
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{
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if(!$.comet._bInitialized) return;
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if($.comet._advice)
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{
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if($.comet._advice.reconnect == 'none') return;
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if($.comet._advice.interval > 0)
|
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{
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setTimeout($.comet._oTransport._connect, $.comet._advice.interval);
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}
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else
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{
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$.comet._oTransport._connect();
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}
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}
|
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else
|
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{
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$.comet._oTransport._connect();
|
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}
|
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};
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|
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this._connect = function()
|
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{
|
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if(!$.comet._bInitialized) return;
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|
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if($.comet._bPolling) return;
|
||||
|
||||
if($.comet._advice && $.comet._advice.reconnect == 'handshake')
|
||||
{
|
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$.comet._bConnected = false;
|
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$.comet.init($.comet._sUrl);
|
||||
}
|
||||
else if($.comet._bConnected)
|
||||
{
|
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var msgConnect =
|
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{
|
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//jsonp: 'test',
|
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clientId: $.comet.clientId,
|
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id: String($.comet._nNextId++),
|
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channel: '/meta/connect',
|
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connectionType: $.comet._oTransport.connectionType
|
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};
|
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$.comet._oTransport.openTunnel(msgConnect);
|
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}
|
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};
|
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|
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this._send = function(sUrl, oMsg, fCallback) {
|
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//default callback will check advice, deliver messages, and reconnect
|
||||
var fCallback = (fCallback) ? fCallback : function(sReturn)
|
||||
{
|
||||
var oReturn = (typeof sReturn != "object") ? (eval('(' + sReturn + ')')) : sReturn;
|
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|
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$.comet.deliver(oReturn);
|
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|
||||
if($.comet._advice)
|
||||
{
|
||||
if($.comet._advice.reconnect == 'none')
|
||||
return;
|
||||
|
||||
if($.comet._advice.interval > 0)
|
||||
{
|
||||
setTimeout($.comet._oTransport._connect, $.comet._advice.interval);
|
||||
}
|
||||
else
|
||||
{
|
||||
$.comet._oTransport._connect();
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
$.comet._oTransport._connect();
|
||||
}
|
||||
};
|
||||
|
||||
//regular AJAX for same domain calls
|
||||
if((!this._bXD) && (this.connectionType == 'long-polling'))
|
||||
{
|
||||
this._pollRequest = $.ajax({
|
||||
url: sUrl,
|
||||
type: 'post',
|
||||
beforeSend: function(oXhr) { oXhr.setRequestHeader('Connection', 'Keep-Alive'); },
|
||||
data: { message: JSON.stringify(oMsg) },
|
||||
success: fCallback
|
||||
});
|
||||
}
|
||||
else // JSONP callback for cross domain
|
||||
{
|
||||
this._pollRequest = $.ajax({
|
||||
url: sUrl,
|
||||
dataType: 'jsonp',
|
||||
jsonp: 'jsonp',
|
||||
beforeSend: function(oXhr) { oXhr.setRequestHeader('Connection', 'Keep-Alive'); },
|
||||
data:
|
||||
{
|
||||
message: JSON.stringify($.extend(oMsg,{connectionType: 'callback-polling' }))
|
||||
},
|
||||
success: fCallback
|
||||
});
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
$.comet = new function()
|
||||
{
|
||||
this.CONNECTED = 'CONNECTED';
|
||||
this.CONNECTING = 'CONNECTING';
|
||||
this.DISCONNECTED = 'DISCONNECTED';
|
||||
this.DISCONNECTING = 'DISCONNECTING';
|
||||
|
||||
this._aMessageQueue = [];
|
||||
this._aSubscriptions = [];
|
||||
this._aSubscriptionCallbacks = [];
|
||||
this._bInitialized = false;
|
||||
this._bConnected = false;
|
||||
this._nBatch = 0;
|
||||
this._nNextId = 0;
|
||||
// just define the transport, do not assign it yet.
|
||||
this._oTransport = ''; //oTransport;
|
||||
this._sUrl = '';
|
||||
|
||||
this.supportedConectionTypes = [ 'long-polling', 'callback-polling' ];
|
||||
|
||||
this.clientId = '';
|
||||
|
||||
this._bTrigger = true; // this sends $.event.trigger(channel, data)
|
||||
|
||||
this.init = function(sUrl)
|
||||
{
|
||||
this._sUrl = (sUrl) ? sUrl : '/cometd';
|
||||
|
||||
this._oTransport = new oTransport();
|
||||
|
||||
this._aMessageQueue = [];
|
||||
this._aSubscriptions = [];
|
||||
this._bInitialized = true;
|
||||
this.startBatch();
|
||||
|
||||
var oMsg = $.extend(msgHandshake, {id: String(this._nNextId++)});
|
||||
|
||||
this._oTransport._send(this._sUrl, oMsg, $.comet._finishInit);
|
||||
};
|
||||
|
||||
this._finishInit = function(sReturn)
|
||||
{
|
||||
var oReturn = (typeof sReturn != "object") ? (eval('(' + sReturn + ')')[0]) : sReturn[0];
|
||||
|
||||
if(oReturn.advice)
|
||||
$.comet._advice = oReturn.advice;
|
||||
|
||||
var bSuccess = (oReturn.successful) ? oReturn.successful : false;
|
||||
// do version check
|
||||
|
||||
if(bSuccess)
|
||||
{
|
||||
// pick transport ?
|
||||
// ......
|
||||
|
||||
$.comet._oTransport._comet = $.comet;
|
||||
$.comet._oTransport.version = $.comet.version;
|
||||
|
||||
$.comet.clientId = oReturn.clientId;
|
||||
$.comet._oTransport.startup(oReturn);
|
||||
$.comet.endBatch();
|
||||
}
|
||||
};
|
||||
|
||||
this._sendMessage = function(oMsg)
|
||||
{
|
||||
if($.comet._nBatch <= 0)
|
||||
{
|
||||
if(oMsg.length > 0)
|
||||
for(var i in oMsg)
|
||||
{
|
||||
oMsg[i].clientId = String($.comet.clientId);
|
||||
oMsg[i].id = String($.comet._nNextId++);
|
||||
}
|
||||
else
|
||||
{
|
||||
oMsg.clientId = String($.comet.clientId);
|
||||
oMsg.id = String($.comet._nNextId++);
|
||||
}
|
||||
|
||||
$.comet._oTransport._send($.comet._sUrl, oMsg);
|
||||
}
|
||||
else
|
||||
{
|
||||
$.comet._aMessageQueue.push(oMsg);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
this.startBatch = function() { this._nBatch++ };
|
||||
this.endBatch = function() {
|
||||
if(--this._nBatch <= 0)
|
||||
{
|
||||
this._nBatch = 0;
|
||||
if(this._aMessageQueue.length > 0)
|
||||
{
|
||||
this._sendMessage(this._aMessageQueue);
|
||||
this._aMessageQueue = [];
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
this.subscribe = function(sSubscription, fCallback)
|
||||
{
|
||||
// if this topic has not been subscribed to yet, send the message now
|
||||
if(!this._aSubscriptions[sSubscription])
|
||||
{
|
||||
this._aSubscriptions.push(sSubscription)
|
||||
|
||||
if (fCallback) {
|
||||
this._aSubscriptionCallbacks[sSubscription] = fCallback;
|
||||
}
|
||||
|
||||
this._sendMessage({ channel: '/meta/subscribe', subscription: sSubscription });
|
||||
}
|
||||
|
||||
//$.event.add(window, sSubscription, fCallback);
|
||||
};
|
||||
|
||||
this.unsubscribe = function(sSubscription) {
|
||||
$.comet._sendMessage({ channel: '/meta/unsubscribe', subscription: sSubscription });
|
||||
};
|
||||
|
||||
this.publish = function(sChannel, oData)
|
||||
{
|
||||
$.comet._sendMessage({channel: sChannel, data: oData});
|
||||
};
|
||||
|
||||
this.deliver = function(sReturn)
|
||||
{
|
||||
var oReturn = sReturn;//eval(sReturn);
|
||||
|
||||
$(oReturn).each(function()
|
||||
{
|
||||
$.comet._deliver(this);
|
||||
});
|
||||
};
|
||||
|
||||
this.disconnect = function()
|
||||
{
|
||||
$($.comet._aSubscriptions).each(function(i)
|
||||
{
|
||||
$.comet.unsubscribe($.comet._aSubscriptions[i]);
|
||||
});
|
||||
|
||||
$.comet._sendMessage({channel:'/meta/disconnect'});
|
||||
|
||||
$.comet._bInitialized = false;
|
||||
}
|
||||
|
||||
this._deliver = function(oMsg,oData)
|
||||
{
|
||||
if(oMsg.advice)
|
||||
{
|
||||
$.comet._advice = oMsg.advice;
|
||||
}
|
||||
|
||||
switch(oMsg.channel)
|
||||
{
|
||||
case '/meta/connect':
|
||||
if(oMsg.successful && !$.comet._bConnected)
|
||||
{
|
||||
$.comet._bConnected = $.comet._bInitialized;
|
||||
$.comet.endBatch();
|
||||
/*
|
||||
$.comet._sendMessage(msgConnect);
|
||||
*/
|
||||
}
|
||||
else
|
||||
{}
|
||||
//$.comet._bConnected = false;
|
||||
break;
|
||||
|
||||
// add in subscription handling stuff
|
||||
case '/meta/subscribe':
|
||||
if(!oMsg.successful)
|
||||
{
|
||||
$.comet._oTransport._cancelConnect();
|
||||
return;
|
||||
}
|
||||
break;
|
||||
|
||||
case '/meta/unsubscribe':
|
||||
if(!oMsg.successful)
|
||||
{
|
||||
$.comet._oTransport._cancelConnect();
|
||||
return;
|
||||
}
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
if(oMsg.data)
|
||||
{
|
||||
if($.comet._bTrigger)
|
||||
{
|
||||
$.event.trigger(oMsg.channel, [oMsg]);
|
||||
}
|
||||
|
||||
var cb = $.comet._aSubscriptionCallbacks[oMsg.channel];
|
||||
if (cb) {
|
||||
cb(oMsg);
|
||||
}
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
})(jQuery);
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
// update the local timeline from a Comet server
|
||||
//
|
||||
|
||||
Loading…
Reference in New Issue