FileTransfer::copyDirectoryJailed

protected FileTransfer::copyDirectoryJailed($source, $destination)

protected function copyDirectoryJailed($source, $destination) {
  if ($this->isDirectory($destination)) {
    $destination = $destination . '/' . drupal_basename($source);
  }
  $this->createDirectory($destination);
  foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST) as $filename => $file) {
    $relative_path = substr($filename, strlen($source));
    if ($file->isDir()) {
      $this->createDirectory($destination . $relative_path);
    }
    else {
      $this->copyFile($file->getPathName(), $destination . $relative_path);
    }
  }
}