FileInputUnclouder::check

protected function check($params = array())
{
	$sign = new Signer;

	$str = (string) $sign->unsign($this->signature, self::$salt);
	$str2 = (string) $this->id;

	if (is_array($params) && array_key_exists("width", $params) && $params["width"] > 0 && array_key_exists("height", $params) && $params["height"] > 0)
	{
		$str2 = $this->id . "x" . $params["width"] . "x" . $params["height"];
	}
	return ($str == $str2);
}