Rest::isAdmin

static function isAdmin()
{
	if ($GLOBALS['USER']->IsAdmin())
		return true;

	if (BitrixMainLoader::includeModule('bitrix24'))
	{
		if (CBitrix24::IsPortalAdmin($GLOBALS['USER']->GetID()))
		{
			return true;
		}
		else if (CBitrix24::isIntegrator($GLOBALS['USER']->GetID()))
		{
			return true;
		}
	}

	return false;
}