/**
  * @access public
  *
  * @param string $file
  * @param int $time
  * @param int $atime
  * @return bool
  */
 public function touch($file, $time = 0, $atime = 0)
 {
     if ($this->authorized()) {
         return parent::touch($file, $time, $atime);
     } else {
         return false;
     }
 }