<?php
  
  /**
  * ownCloud - Download versions directly from the versions drop-down
  *
  * @author Bjoern Schiessle
  * @copyright 2013 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/>.
  *
  */
  
  OCP\JSON::checkAppEnabled('files_versions');
  //OCP\JSON::callCheck();
  
  $file = $_GET['file'];
  $revision=(int)$_GET['revision'];
  
  list($uid, $filename) = OCA\Files_Versions\Storage::getUidAndFilename($file);
  
  $versionName = '/'.$uid.'/files_versions/'.$filename.'.v'.$revision;
  
  $view = new OC\Files\View('/');
  
  $ftype = $view->getMimeType('/'.$uid.'/files/'.$filename);
  
  header('Content-Type:'.$ftype);
  if ( preg_match( "/MSIE/", $_SERVER["HTTP_USER_AGENT"] ) ) {
  	header( 'Content-Disposition: attachment; filename="' . rawurlencode( basename($filename) ) . '"' );
  } else {
  	header( 'Content-Disposition: attachment; filename*=UTF-8\'\'' . rawurlencode( basename($filename) )
  										 . '; filename="' . rawurlencode( basename($filename) ) . '"' );
  }
  OCP\Response::disableCaching();
  header('Content-Length: '.$view->filesize($versionName));
  
  OC_Util::obEnd();
  
  $view->readfile($versionName);