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<?php
/**
* @copyright Copyright (c) 2022 Côme Chilliet <come.chilliet@nextcloud.com>
*
* @author Arthur Schiwon <blizzz@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Jakob Sack <mail@jakobsack.de>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Klaas Freitag <freitag@owncloud.com>
* @author Markus Goetz <markus@woboq.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
* @author Côme Chilliet <come.chilliet@nextcloud.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 OCP\Files;
use OCP\Constants;
use OC\Files\Mount\MoveableMount;
/**
* This class provides different helper functions related to WebDAV protocol
*
* @since 25.0.0
*/
class DavUtil {
/**
* Compute the fileId to use for dav responses
*
* @param int $id Id of the file returned by FileInfo::getId
* @since 25.0.0
*/
public static function getDavFileId(int $id): string {
$instanceId = \OC_Util::getInstanceId();
$id = sprintf('%08d', $id);
return $id . $instanceId;
}
/**
* Compute the format needed for returning permissions for dav
*
* @since 25.0.0
*/
public static function getDavPermissions(FileInfo $info): string {
$p = '';
if ($info->isShared()) {
$p .= 'S';
}
if ($info->isShareable()) {
$p .= 'R';
}
if ($info->isMounted()) {
$p .= 'M';
}
if ($info->isReadable()) {
$p .= 'G';
}
if ($info->isDeletable()) {
$p .= 'D';
}
if ($info->isUpdateable()) {
$p .= 'NV'; // Renameable, Movable
}
// since we always add update permissions for the root of movable mounts
// we need to check the shared cache item directly to determine if it's writable
$storage = $info->getStorage();
if ($info->getInternalPath() === '' && $info->getMountPoint() instanceof MoveableMount) {
$rootEntry = $storage->getCache()->get('');
$isWritable = $rootEntry->getPermissions() & Constants::PERMISSION_UPDATE;
} else {
$isWritable = $info->isUpdateable();
}
if ($info->getType() === FileInfo::TYPE_FILE) {
if ($isWritable) {
$p .= 'W';
}
} else {
if ($info->isCreatable()) {
$p .= 'CK';
}
}
return $p;
}
}
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