protected function writefile()
{
$path = $this->param('path', false);
$content = $this->param('content', false);
$file = $this->root . '/' . trim($path, '/');
$ret = false;
if ($path && file_exists($file) && $content !== false) {
$ret = file_put_contents($file, $content);
}
return json_encode(array("success" => $ret));
}