Sender::getLockUniqueSalt

static function getLockUniqueSalt($generate = true)
{
	$uniqueSalt = Option::get("main", "server_uniq_id", "");
	if ($uniqueSalt == '' && $generate)
	{
		$uniqueSalt = md5(uniqid(rand(), true));
		Option::set("main", "server_uniq_id", $uniqueSalt);
	}

	return $uniqueSalt;
}