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<?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);
}
/**
* Plugin to do realtime updates using Comet
*
* @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 CometPlugin extends Plugin
{
var $server = null;
function __construct($server=null)
{
$this->server = $server;
parent::__construct();
}
function onEndShowScripts($action)
{
$timeline = null;
switch ($action->trimmed('action')) {
case 'public':
$timeline = '/timelines/public';
break;
default:
return true;
}
$action->element('script', array('type' => 'text/javascript',
'src' => common_path('plugins/Comet/jquery.comet.js')),
' ');
$action->elementStart('script', array('type' => 'text/javascript'));
$action->raw("var _timelineServer = \"$this->server\"; ".
"var _timeline = \"$timeline\";");
$action->elementEnd('script');
$action->element('script', array('type' => 'text/javascript',
'src' => common_path('plugins/Comet/updatetimeline.js')),
' ');
return true;
}
function onEndNoticeSave($notice)
{
$this->log(LOG_INFO, "Called for save notice.");
$timelines = array();
// XXX: Add other timelines; this is just for the public one
if ($notice->is_local ||
($notice->is_local == 0 && !common_config('public', 'localonly'))) {
$timelines[] = '/timelines/public';
}
if (count($timelines) > 0) {
// Require this, since we need it
require_once(INSTALLDIR.'/plugins/Comet/bayeux.class.inc.php');
$json = $this->noticeAsJson($notice);
$this->log(LOG_DEBUG, "JSON = '$json'");
// Bayeux? Comet? Huh? These terms confuse me
$bay = new Bayeux($this->server);
foreach ($timelines as $timeline) {
$this->log(LOG_INFO, "Posting notice $notice->id to '$timeline'.");
$bay->publish($timeline, $json);
$this->log(LOG_DEBUG, "Done posting notice $notice->id to '$timeline'.");
}
$bay = NULL;
}
$this->log(LOG_DEBUG, "All done.");
return true;
}
function noticeAsJson($notice)
{
// FIXME: this code should be abstracted to a neutral third
// party, like Notice::asJson(). I'm not sure of the ethics
// of refactoring from within a plugin, so I'm just abusing
// the TwitterApiAction method. Don't do this unless you're me!
require_once(INSTALLDIR.'/lib/twitterapi.php');
$act = new TwitterApiAction('/dev/null');
$arr = $act->twitter_status_array($notice, true);
return $arr;
}
// Push this up to Plugin
function log($level, $msg)
{
common_log($level, get_class($this) . ': '.$msg);
}
}
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