protected function _getAdminUrl()
    {
        $myConfig = \OxidEsales\Eshop\Core\Registry::getConfig();

        if (($adminSslUrl = $myConfig->getConfigParam('sAdminSSLURL'))) {
            $url = trim($adminSslUrl, '/');
        } else {
            $url = trim($myConfig->getConfigParam('sShopURL'), '/') . '/admin';
        }

        return \OxidEsales\Eshop\Core\Registry::getUtilsUrl()->processUrl("{$url}/index.php", false);
    }