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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @copyright 2012 Frank Karlitschek frank@owncloud.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* Class that handels autoupdating of ownCloud
*/
class OC_Updater{
/**
* Check if a new version is available
*/
public static function check() {
// Look up the cache - it is invalidated all 30 minutes
if((OC_Appconfig::getValue('core', 'lastupdatedat') + 1800) > time()) {
return json_decode(OC_Appconfig::getValue('core', 'lastupdateResult'), true);
}
OC_Appconfig::setValue('core', 'lastupdatedat', time());
if(OC_Appconfig::getValue('core', 'installedat', '')=='') {
OC_Appconfig::setValue('core', 'installedat', microtime(true));
}
$updaterurl='http://apps.owncloud.com/updater.php';
$version=OC_Util::getVersion();
$version['installed']=OC_Appconfig::getValue('core', 'installedat');
$version['updated']=OC_Appconfig::getValue('core', 'lastupdatedat');
$version['updatechannel']='stable';
$version['edition']=OC_Util::getEditionString();
$versionstring=implode('x', $version);
//fetch xml data from updater
$url=$updaterurl.'?version='.$versionstring;
// set a sensible timeout of 10 sec to stay responsive even if the update server is down.
$ctx = stream_context_create(
array(
'http' => array(
'timeout' => 10
)
)
);
$xml=@file_get_contents($url, 0, $ctx);
if($xml==false) {
return array();
}
$data=@simplexml_load_string($xml);
$tmp=array();
$tmp['version'] = $data->version;
$tmp['versionstring'] = $data->versionstring;
$tmp['url'] = $data->url;
$tmp['web'] = $data->web;
// Cache the result
OC_Appconfig::setValue('core', 'lastupdateResult', json_encode($data));
return $tmp;
}
}
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