gnu-social/plugins/GeoURL/GeoURLPlugin.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to add ICBM metadata to HTML pages and report data to GeoURL.org
*
* 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 Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* Plugin to add ICBM metadata to HTML pages and report data to GeoURL.org
*
* Adds metadata to notice and profile pages that geourl.org and others
* understand. Also, pings geourl.org when a new notice is saved or
* a profile is changed.
*
* @category Plugin
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*
* @seeAlso Location
*/
class GeoURLPlugin extends Plugin
{
public $ping = 'http://geourl.org/ping/';
/**
* Add extra <meta> headers for certain pages that geourl.org understands
*
* @param Action $action page being shown
*
* @return boolean event handler flag
*/
function onEndShowHeadElements(Action $action)
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{
$name = $action->trimmed('action');
$location = null;
if ($action instanceof ShowstreamAction) {
$profile = $action->getTarget();
if (!empty($profile->lat) && !empty($profile->lon)) {
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$location = $profile->lat . ', ' . $profile->lon;
}
} elseif ($action instanceof ShownoticeAction) {
// FIXME: getNotice in ShownoticeAction will do a new lookup, we should fix those classes
// so they can reliably just get a pre-stored notice object which was fetched in Shownotice prepare()...
$notice = $action->notice;
if ($notice instanceof Notice && !empty($notice->lat) && !empty($notice->lon)) {
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$location = $notice->lat . ', ' . $notice->lon;
}
}
if (!is_null($location)) {
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$action->element('meta', array('name' => 'ICBM',
'content' => $location));
$action->element('meta', array('name' => 'DC.title',
'content' => $action->title()));
}
return true;
}
/**
* Report local notices to GeoURL.org when they're created
*
* @param Notice &$notice queued notice
*
* @return boolean event handler flag
*/
function onHandleQueuedNotice(&$notice)
{
if (intval($notice->is_local) === Notice::LOCAL_PUBLIC) {
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$request = HTTPClient::start();
$url = common_local_url('shownotice',
array('notice' => $notice->id));
try {
$request->post($this->ping,
null,
array('p' => $url));
} catch (Exception $e) {
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common_log(LOG_WARNING,
"GeoURL.org ping failed for '$url' ($this->ping)");
}
}
return true;
}
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function onPluginVersion(array &$versions)
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{
$versions[] = array('name' => 'GeoURL',
'version' => GNUSOCIAL_VERSION,
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'author' => 'Evan Prodromou',
'homepage' => 'http://status.net/wiki/Plugin:GeoURL',
'rawdescription' =>
// TRANS: Plugin description.
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_m('Ping <a href="http://geourl.org/">GeoURL</a> when '.
'new geolocation-enhanced notices are posted.'));
return true;
}
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}