108 lines
3.1 KiB
PHP
108 lines
3.1 KiB
PHP
<?php
|
|
/**
|
|
* @author Thomas Müller <thomas.mueller@tmit.eu>
|
|
*
|
|
* @copyright Copyright (c) 2017, ownCloud GmbH
|
|
* @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\Upload;
|
|
|
|
use Sabre\DAV\Exception\BadRequest;
|
|
use Sabre\DAV\Server;
|
|
use Sabre\DAV\ServerPlugin;
|
|
|
|
class ChunkingPlugin extends ServerPlugin {
|
|
|
|
/** @var Server */
|
|
private $server;
|
|
/** @var FutureFile */
|
|
private $sourceNode;
|
|
|
|
/**
|
|
* @inheritdoc
|
|
*/
|
|
function initialize(Server $server) {
|
|
$server->on('beforeMove', [$this, 'beforeMove']);
|
|
$this->server = $server;
|
|
}
|
|
|
|
/**
|
|
* @param string $sourcePath source path
|
|
* @param string $destination destination path
|
|
*/
|
|
function beforeMove($sourcePath, $destination) {
|
|
$this->sourceNode = $this->server->tree->getNodeForPath($sourcePath);
|
|
if (!$this->sourceNode instanceof FutureFile) {
|
|
// skip handling as the source is not a chunked FutureFile
|
|
return;
|
|
}
|
|
|
|
$this->verifySize();
|
|
return $this->performMove($sourcePath, $destination);
|
|
}
|
|
|
|
/**
|
|
* Move handler for future file.
|
|
*
|
|
* This overrides the default move behavior to prevent Sabre
|
|
* to delete the target file before moving. Because deleting would
|
|
* lose the file id and metadata.
|
|
*
|
|
* @param string $path source path
|
|
* @param string $destination destination path
|
|
* @return bool|void false to stop handling, void to skip this handler
|
|
*/
|
|
public function performMove($path, $destination) {
|
|
if (!$this->server->tree->nodeExists($destination)) {
|
|
// skip and let the default handler do its work
|
|
return;
|
|
}
|
|
|
|
// do a move manually, skipping Sabre's default "delete" for existing nodes
|
|
$this->server->tree->move($path, $destination);
|
|
|
|
// trigger all default events (copied from CorePlugin::move)
|
|
$this->server->emit('afterMove', [$path, $destination]);
|
|
$this->server->emit('afterUnbind', [$path]);
|
|
$this->server->emit('afterBind', [$destination]);
|
|
|
|
$response = $this->server->httpResponse;
|
|
$response->setHeader('Content-Length', '0');
|
|
$response->setStatus(204);
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @throws BadRequest
|
|
*/
|
|
private function verifySize() {
|
|
$expectedSize = $this->server->httpRequest->getHeader('OC-Total-Length');
|
|
if ($expectedSize === null) {
|
|
return;
|
|
}
|
|
$actualSize = $this->sourceNode->getSize();
|
|
|
|
// casted to string because cast to float cause equality for non equal numbers
|
|
// and integer has the problem of limited size on 32 bit systems
|
|
if ((string)$expectedSize !== (string)$actualSize) {
|
|
throw new BadRequest("Chunks on server do not sum up to $expectedSize but to $actualSize bytes");
|
|
}
|
|
}
|
|
}
|