sminnee / silverstripe-framework

    public static function host()

    {

        // Check if overridden by alternate_base_url

        if ($baseURL = self::config()->get('alternate_base_url')) {

            $baseURL = Injector::inst()->convertServiceProperty($baseURL);

            $host = parse_url($baseURL, PHP_URL_HOST);

            if ($host) {

                return $host;

            }

        }

        $request = Injector::inst()->get(HTTPRequest::class);

        if ($request && $host = $request->getHeader('Host')) {

        }

        // Check base url

        if ($baseURL = self::config()->uninherited('default_base_url')) {

            $baseURL = Injector::inst()->convertServiceProperty($baseURL);

            $host = parse_url($baseURL, PHP_URL_HOST);

            if ($host) {

                return $host;

            }

        }

        // Fail over to server_name (least reliable)

        return isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : gethostname();

    public static function is_https()

    {

        // Check override from alternate_base_url

        if ($baseURL = self::config()->uninherited('alternate_base_url')) {

            $baseURL = Injector::inst()->convertServiceProperty($baseURL);

            $protocol = parse_url($baseURL, PHP_URL_SCHEME);

            if ($protocol) {

                return $protocol === 'https';

            }

        }

        // Check the current request

        $request = Injector::inst()->get(HTTPRequest::class);

        }

        // Check default_base_url

        if ($baseURL = self::config()->uninherited('default_base_url')) {

            $baseURL = Injector::inst()->convertServiceProperty($baseURL);

            $protocol = parse_url($baseURL, PHP_URL_SCHEME);

            if ($protocol) {

                return $protocol === 'https';

            }

        }

        return false;

    }