CSecurityUser::isActive

static function isActive()
{
	$bActive = false;
	foreach(GetModuleEvents("main", "OnBeforeUserLogin", true) as $event)
	{
		if(
			$event["TO_MODULE_ID"] == "security"
			&& $event["TO_CLASS"] == "CSecurityUser"
		)
		{
			$bActive = true;
			break;
		}
	}
	return $bActive;
}