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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\Connector\Sabre;
use Sabre\HTTP\RequestInterface;
use Sabre\HTTP\ResponseInterface;
/**
* Copies the "Etag" header to "OC-Etag" after any request.
* This is a workaround for setups that automatically strip
* or mangle Etag headers.
*/
class CopyEtagHeaderPlugin extends \Sabre\DAV\ServerPlugin {
/** @var \Sabre\DAV\Server */
private $server;
/**
* This initializes the plugin.
*
* @param \Sabre\DAV\Server $server Sabre server
*
* @return void
*/
public function initialize(\Sabre\DAV\Server $server) {
$this->server = $server;
$server->on('afterMethod:*', [$this, 'afterMethod']);
$server->on('afterMove', [$this, 'afterMove']);
}
/**
* After method, copy the "Etag" header to "OC-Etag" header.
*
* @param RequestInterface $request request
* @param ResponseInterface $response response
*/
public function afterMethod(RequestInterface $request, ResponseInterface $response) {
$eTag = $response->getHeader('Etag');
if (!empty($eTag)) {
$response->setHeader('OC-ETag', $eTag);
}
}
/**
* Called after a node is moved.
*
* This allows the backend to move all the associated properties.
*
* @param string $source
* @param string $destination
* @return void
*/
public function afterMove($source, $destination) {
$node = $this->server->tree->getNodeForPath($destination);
if ($node instanceof File) {
$eTag = $node->getETag();
$this->server->httpResponse->setHeader('OC-ETag', $eTag);
$this->server->httpResponse->setHeader('ETag', $eTag);
}
}
}
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