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<?php
/**
* media_proxy.php - media proxy controller
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author Elmar Ludwig
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*/
class MediaProxyController extends StudipController
{
/**
* Empty before filter to avoid any unwanted output changes.
*
* @param string $action
* @param array $args
*/
public function before_filter(&$action, &$args)
{
}
/**
* default action of this controller: proxy media data
*/
public function index_action()
{
$url = Request::get('url');
$media_proxy = new MediaProxy();
$config = Config::GetInstance();
$modified_since = NULL;
if (!Seminar_Session::is_current_session_authenticated() ||
$config->getValue('LOAD_EXTERNAL_MEDIA') != 'proxy') {
throw new AccessDeniedException();
}
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
$modified_since = strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']);
}
ini_set('default_socket_timeout', 5);
$this->render_nothing();
//stop output buffering started in Trails_Dispatcher::dispatch()
while (ob_get_level()) {
ob_end_clean();
}
try {
$media_proxy->readURL($url, $modified_since);
} catch (MediaProxyException $ex) {
header($ex->getMessage());
}
}
}
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