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<?php
/**
* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @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/>
*
*/
class OC_Connector_Sabre_FilesPlugin extends \Sabre\DAV\ServerPlugin
{
// namespace
const NS_OWNCLOUD = 'http://owncloud.org/ns';
/**
* Reference to main server object
*
* @var \Sabre\DAV\Server
*/
private $server;
/**
* This initializes the plugin.
*
* This function is called by \Sabre\DAV\Server, after
* addPlugin is called.
*
* This method should set up the required event subscriptions.
*
* @param \Sabre\DAV\Server $server
* @return void
*/
public function initialize(\Sabre\DAV\Server $server) {
$server->xmlNamespaces[self::NS_OWNCLOUD] = 'oc';
$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}id';
$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}permissions';
$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}size';
$server->protectedProperties[] = '{' . self::NS_OWNCLOUD . '}downloadURL';
$this->server = $server;
$this->server->subscribeEvent('beforeGetProperties', array($this, 'beforeGetProperties'));
$this->server->subscribeEvent('afterBind', array($this, 'sendFileIdHeader'));
$this->server->subscribeEvent('afterWriteContent', array($this, 'sendFileIdHeader'));
}
/**
* Adds all ownCloud-specific properties
*
* @param string $path
* @param \Sabre\DAV\INode $node
* @param array $requestedProperties
* @param array $returnedProperties
* @return void
*/
public function beforeGetProperties($path, \Sabre\DAV\INode $node, array &$requestedProperties, array &$returnedProperties) {
if ($node instanceof OC_Connector_Sabre_Node) {
$fileIdPropertyName = '{' . self::NS_OWNCLOUD . '}id';
$permissionsPropertyName = '{' . self::NS_OWNCLOUD . '}permissions';
if (array_search($fileIdPropertyName, $requestedProperties)) {
unset($requestedProperties[array_search($fileIdPropertyName, $requestedProperties)]);
}
if (array_search($permissionsPropertyName, $requestedProperties)) {
unset($requestedProperties[array_search($permissionsPropertyName, $requestedProperties)]);
}
/** @var $node OC_Connector_Sabre_Node */
$fileId = $node->getFileId();
if (!is_null($fileId)) {
$returnedProperties[200][$fileIdPropertyName] = $fileId;
}
$permissions = $node->getDavPermissions();
if (!is_null($permissions)) {
$returnedProperties[200][$permissionsPropertyName] = $permissions;
}
}
if ($node instanceof OC_Connector_Sabre_File) {
/** @var $node OC_Connector_Sabre_File */
$directDownloadUrl = $node->getDirectDownload();
if (isset($directDownloadUrl['url'])) {
$directDownloadUrlPropertyName = '{' . self::NS_OWNCLOUD . '}downloadURL';
$returnedProperties[200][$directDownloadUrlPropertyName] = $directDownloadUrl['url'];
}
}
if ($node instanceof OC_Connector_Sabre_Directory) {
$sizePropertyName = '{' . self::NS_OWNCLOUD . '}size';
/** @var $node OC_Connector_Sabre_Directory */
$returnedProperties[200][$sizePropertyName] = $node->getSize();
}
}
/**
* @param string $filePath
* @param \Sabre\DAV\INode $node
* @throws \Sabre\DAV\Exception\BadRequest
*/
public function sendFileIdHeader($filePath, \Sabre\DAV\INode $node = null) {
// chunked upload handling
if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
list($path, $name) = \Sabre\DAV\URLUtil::splitPath($filePath);
$info = OC_FileChunking::decodeName($name);
if (!empty($info)) {
$filePath = $path . '/' . $info['name'];
}
}
// we get the node for the given $filePath here because in case of afterCreateFile $node is the parent folder
if (!$this->server->tree->nodeExists($filePath)) {
return;
}
$node = $this->server->tree->getNodeForPath($filePath);
if ($node instanceof OC_Connector_Sabre_Node) {
$fileId = $node->getFileId();
if (!is_null($fileId)) {
$this->server->httpResponse->setHeader('OC-FileId', $fileId);
}
}
}
}
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