Http::getServerAddress

static function getServerAddress()
{
	$publicUrl = BitrixMainConfigOption::get(self::MODULE_ID, "portal_url");

	if ($publicUrl != '')
		return $publicUrl;
	else
		return (BitrixMainContext::getCurrent()->getRequest()->isHttps() ? "https" : "http")."://".$_SERVER['SERVER_NAME'].(in_array($_SERVER['SERVER_PORT'], Array(80, 443))?'':':'.$_SERVER['SERVER_PORT']);
}