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<?php |
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/** |
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* @author Thomas Müller <[email protected]> |
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* |
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* @copyright Copyright (c) 2017, ownCloud GmbH |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OCA\DAV\Upload; |
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use OCA\DAV\Connector\Sabre\File; |
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use Sabre\DAV\Exception\BadRequest; |
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use Sabre\DAV\Server; |
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use Sabre\DAV\ServerPlugin; |
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class ChunkingPlugin extends ServerPlugin { |
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/** @var Server */ |
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private $server; |
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/** @var FutureFile */ |
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private $sourceNode; |
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/** |
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* @inheritdoc |
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*/ |
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function initialize(Server $server) { |
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$server->on('beforeMove', [$this, 'beforeMove']); |
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$this->server = $server; |
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} |
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/** |
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* @param string $sourcePath source path |
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* @param string $destination destination path |
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*/ |
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function beforeMove($sourcePath, $destination) { |
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$this->sourceNode = $this->server->tree->getNodeForPath($sourcePath); |
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if (!$this->sourceNode instanceof FutureFile) { |
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// skip handling as the source is not a chunked FutureFile |
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return; |
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} |
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$this->verifySize(); |
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return $this->performMove($sourcePath, $destination); |
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} |
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/** |
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* Move handler for future file. |
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* |
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* This overrides the default move behavior to prevent Sabre |
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* to delete the target file before moving. Because deleting would |
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* lose the file id and metadata. |
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* |
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* @param string $path source path |
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* @param string $destination destination path |
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* @return bool|void false to stop handling, void to skip this handler |
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*/ |
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public function performMove($path, $destination) { |
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if (!$this->server->tree->nodeExists($destination)) { |
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// skip and let the default handler do its work |
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return; |
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} |
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// do a move manually, skipping Sabre's default "delete" for existing nodes |
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$this->server->tree->move($path, $destination); |
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// trigger all default events (copied from CorePlugin::move) |
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$this->server->emit('afterMove', [$path, $destination]); |
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$this->server->emit('afterUnbind', [$path]); |
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$this->server->emit('afterBind', [$destination]); |
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$response = $this->server->httpResponse; |
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$response->setHeader('Content-Length', '0'); |
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$response->setStatus(204); |
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return false; |
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} |
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/** |
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* @throws BadRequest |
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*/ |
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private function verifySize() { |
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$expectedSize = $this->server->httpRequest->getHeader('OC-Total-Length'); |
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if ($expectedSize === null) { |
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return; |
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} |
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$actualSize = $this->sourceNode->getSize(); |
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if ((int)$expectedSize !== $actualSize) { |
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throw new BadRequest("Chunks on server do not sum up to $expectedSize but to $actualSize bytes"); |
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} |
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} |
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} |
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nextcloud /
server
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.