<?php
  /**
   * ownCloud
   *
   * @author Bjoern Schiessle
   * @copyright 2014 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\Share;
  use OCA\Files_Sharing\Helper;
  
  class Proxy extends \OC_FileProxy {
  
  	/**
  	 * check if the deleted folder contains share mount points and unshare them
  	 *
  	 * @param string $path
  	 */
  	public function preUnlink($path) {
  		$this->unshareChildren($path);
  	}
  
  	/**
  	 * check if the deleted folder contains share mount points and unshare them
  	 *
  	 * @param string $path
  	 */
  	public function preRmdir($path) {
  		$this->unshareChildren($path);
  	}
  
  	/**
  	 * unshare shared items below the deleted folder
  	 *
  	 * @param string $path
  	 */
  	private function unshareChildren($path) {
  		$view = new \OC\Files\View('/');
  
  		// find share mount points within $path and unmount them
  		$mountManager = \OC\Files\Filesystem::getMountManager();
  		$mountedShares = $mountManager->findIn($path);
  		foreach ($mountedShares as $mount) {
  			if ($mount->getStorage()->instanceOfStorage('OCA\Files_Sharing\ISharedStorage')) {
  				$mountPoint = $mount->getMountPoint();
  				$view->unlink($mountPoint);
  			}
  		}
  	}
  
  }