$content_type = '';
                 if (empty($_GET['get_content'])) {
                     if ($ext === '.gif') {
                         $content_type = 'image/gif';
                     } elseif ($ext === '.jpg' || $ext === '.jpe' || $ext === 'jpeg') {
                         $content_type = 'image/jpeg';
                     } elseif ($ext === '.png') {
                         $content_type = 'image/png';
                     } else {
                         $do_download = true;
                     }
                 } else {
                     $do_download = true;
                 }
                 xs_download_file($do_download ? basename($f) : '', $contents, $content_type);
                 xs_exit();
             }
         } else {
             $list_data[$data['filename']] = $data;
         }
         $files[] = $data['filename'];
     }
 }
 if (empty($data['filename']) && $is_file) {
     $pos = strlen($str);
 } else {
     $pos += floor(($data['size'] + 511) / 512) * 512;
     if ($is_file) {
         $items[] = $data;
     }
 }

function xs_message($title, $message)
{
    global $template;
    $template->set_filenames(array('msg' => XS_TPL_PATH . 'message.tpl'));
    $template->assign_vars(array('MESSAGE_TITLE' => $title, 'MESSAGE_TEXT' => $message));
    $template->pparse('msg');
    xs_exit();
}