server/apps/files_versions/lib/Sabre/VersionRoot.php
Robin Appelman 4403d771ad
modular versions api
Allows apps to register version backends for storage types
The existing versions backend is wrapped in a "legacy" backend.

Signed-off-by: Robin Appelman <robin@icewind.nl>
2018-11-01 00:21:48 +01:00

106 lines
2.5 KiB
PHP

<?php
declare(strict_types=1);
/**
* @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files_Versions\Sabre;
use OCA\Files_Versions\Versions\IVersionManager;
use OCP\Files\File;
use OCP\Files\IRootFolder;
use OCP\IUser;
use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\ICollection;
class VersionRoot implements ICollection {
/** @var IUser */
private $user;
/** @var IRootFolder */
private $rootFolder;
/** @var IVersionManager */
private $versionManager;
public function __construct(IUser $user, IRootFolder $rootFolder, IVersionManager $versionManager) {
$this->user = $user;
$this->rootFolder = $rootFolder;
$this->versionManager = $versionManager;
}
public function delete() {
throw new Forbidden();
}
public function getName(): string {
return 'versions';
}
public function setName($name) {
throw new Forbidden();
}
public function createFile($name, $data = null) {
throw new Forbidden();
}
public function createDirectory($name) {
throw new Forbidden();
}
public function getChild($name) {
$userFolder = $this->rootFolder->getUserFolder($this->user->getUID());
$fileId = (int)$name;
$nodes = $userFolder->getById($fileId);
if ($nodes === []) {
throw new NotFound();
}
$node = array_pop($nodes);
if (!$node instanceof File) {
throw new NotFound();
}
return new VersionCollection($userFolder, $node, $this->user, $this->versionManager);
}
public function getChildren(): array {
return [];
}
public function childExists($name): bool {
try {
$this->getChild($name);
return true;
} catch (NotFound $e) {
return false;
}
}
public function getLastModified(): int {
return 0;
}
}