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<?php
/**
* ownCloud
*
* @copyright (C) 2015 ownCloud, Inc.
*
* @author Bjoern Schiessle <schiessle@owncloud.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OCA\Files_Trashbin;
use OC\Files\Filesystem;
use OC\Files\Storage\Wrapper\Wrapper;
class Storage extends Wrapper {
private $mountPoint;
// remember already deleted files to avoid infinite loops if the trash bin
// move files across storages
private $deletedFiles = array();
/**
* Disable trash logic
*
* @var bool
*/
private static $disableTrash = false;
function __construct($parameters) {
$this->mountPoint = $parameters['mountPoint'];
parent::__construct($parameters);
}
/**
* @internal
*/
public static function preRenameHook($params) {
// in cross-storage cases, a rename is a copy + unlink,
// that last unlink must not go to trash
self::$disableTrash = true;
}
/**
* @internal
*/
public static function postRenameHook($params) {
self::$disableTrash = false;
}
/**
* Deletes the given file by moving it into the trashbin.
*
* @param string $path
*/
public function unlink($path) {
if (self::$disableTrash) {
return $this->storage->unlink($path);
}
$normalized = Filesystem::normalizePath($this->mountPoint . '/' . $path);
$result = true;
if (!isset($this->deletedFiles[$normalized])) {
$view = Filesystem::getView();
$this->deletedFiles[$normalized] = $normalized;
if ($filesPath = $view->getRelativePath($normalized)) {
$filesPath = trim($filesPath, '/');
$result = \OCA\Files_Trashbin\Trashbin::move2trash($filesPath);
// in cross-storage cases the file will be copied
// but not deleted, so we delete it here
if ($result) {
$this->storage->unlink($path);
}
} else {
$result = $this->storage->unlink($path);
}
unset($this->deletedFiles[$normalized]);
} else if ($this->storage->file_exists($path)) {
$result = $this->storage->unlink($path);
}
return $result;
}
/**
* Setup the storate wrapper callback
*/
public static function setupStorage() {
\OC\Files\Filesystem::addStorageWrapper('oc_trashbin', function ($mountPoint, $storage) {
return new \OCA\Files_Trashbin\Storage(array('storage' => $storage, 'mountPoint' => $mountPoint));
});
}
}
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