/// <summary>
        /// Register a new transaction with Sagepay before the iframe shows. In fact, this method should give us the URL for the iframe
        /// </summary>
        /// <returns></returns>
        public RegisterTransactionResult RegisterTransaction()
        {
            var result = new RegisterTransactionResult();

            if (_request.IsLocal)
            {
                result.Message =
                    "This plugin does not work in local hosts. You need to publish NopCommerce on a publicly accessible internet address.";
                return(result);
            }

            var webClient = new WebClient();

            var orderGuid = Guid.NewGuid();

            var data = new QueryStringNameValueCollection
            {
                { "VPSProtocol", SagePayHelper.GetProtocol() },
                { "TxType", TransactTypeValues.Deferred.ToString() },             //we always use Deferred because we only take the payment after user has confirmed
                { "Vendor", _sagePayServerPaymentSettings.VendorName.ToLower() },
                { "VendorTxCode", orderGuid.ToString() }
            };

            if (!String.IsNullOrWhiteSpace(_sagePayServerPaymentSettings.PartnerId))
            {
                data.Add("ReferrerID", _sagePayServerPaymentSettings.PartnerId);
            }

            var cart = _workContext.CurrentCustomer.ShoppingCartItems.ToList();

            cart = cart.Where(sci => sci.ShoppingCartType == ShoppingCartType.ShoppingCart).ToList();

            var orderTotal = _orderTotalCalculationService.GetShoppingCartTotal(cart).GetValueOrDefault();

            data.Add("Amount", orderTotal.ToString("F2", CultureInfo.InvariantCulture));

            data.Add("Currency", _workContext.WorkingCurrency != null
                         ? _workContext.WorkingCurrency.CurrencyCode
                         : _currencyService.GetCurrencyById(_currencySettings.PrimaryStoreCurrencyId).CurrencyCode);

            data.Add("Description", "eCommerce Order from " + _sagePayServerPaymentSettings.VendorName);

            // The Notification URL is the page to which Server calls back when a transaction completes
            data.Add("NotificationURL", _webHelper.GetStoreLocation() + "Plugins/PaymentSagePayServer/NotificationPage");

            // Billing Details
            data.Add("BillingSurname", _workContext.CurrentCustomer.BillingAddress.LastName);
            data.Add("BillingFirstnames", _workContext.CurrentCustomer.BillingAddress.FirstName);
            data.Add("BillingAddress1", _workContext.CurrentCustomer.BillingAddress.Address1);

            if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.BillingAddress.Address2))
            {
                data.Add("BillingAddress2", _workContext.CurrentCustomer.BillingAddress.Address2);
            }

            data.Add("BillingCity", _workContext.CurrentCustomer.BillingAddress.City);
            data.Add("BillingPostCode", _workContext.CurrentCustomer.BillingAddress.ZipPostalCode);
            data.Add("BillingCountry", _workContext.CurrentCustomer.BillingAddress.Country.TwoLetterIsoCode); //TODO: Verify if it is ISO 3166-1 country code

            if (_workContext.CurrentCustomer.BillingAddress.StateProvince != null && _workContext.CurrentCustomer.BillingAddress.Country.TwoLetterIsoCode.ToLower() == "us")
            {
                var state = _workContext.CurrentCustomer.BillingAddress.StateProvince.Abbreviation;
                data.Add("BillingState", (state.Length > 2) ? state.Substring(0, 2) : state);
            }

            if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.BillingAddress.PhoneNumber))
            {
                data.Add("BillingPhone", _workContext.CurrentCustomer.BillingAddress.PhoneNumber);
            }



            // Delivery Details
            if (_workContext.CurrentCustomer.ShippingAddress != null)
            {
                data.Add("DeliverySurname", _workContext.CurrentCustomer.ShippingAddress.LastName);
                data.Add("DeliveryFirstnames", _workContext.CurrentCustomer.ShippingAddress.FirstName);
                data.Add("DeliveryAddress1", _workContext.CurrentCustomer.ShippingAddress.Address1);

                if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.ShippingAddress.Address2))
                {
                    data.Add("DeliveryAddress2", _workContext.CurrentCustomer.ShippingAddress.Address2);
                }

                data.Add("DeliveryCity", _workContext.CurrentCustomer.ShippingAddress.City);
                data.Add("DeliveryPostCode", _workContext.CurrentCustomer.ShippingAddress.ZipPostalCode);

                if (_workContext.CurrentCustomer.ShippingAddress.Country != null)
                {
                    data.Add("DeliveryCountry", _workContext.CurrentCustomer.ShippingAddress.Country.TwoLetterIsoCode);

                    if (_workContext.CurrentCustomer.ShippingAddress.StateProvince != null && _workContext.CurrentCustomer.ShippingAddress.Country.TwoLetterIsoCode.ToLower() == "us")
                    {
                        var state = _workContext.CurrentCustomer.ShippingAddress.StateProvince.Abbreviation;
                        data.Add("DeliveryState", (state.Length > 2) ? state.Substring(0, 2) : state);
                    }
                }

                if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.ShippingAddress.PhoneNumber))
                {
                    data.Add("DeliveryPhone", _workContext.CurrentCustomer.ShippingAddress.PhoneNumber);
                }
            }
            else
            {
                data.Add("DeliverySurname", "");
                data.Add("DeliveryFirstnames", "");
                data.Add("DeliveryAddress1", "");
                data.Add("DeliveryAddress2", "");
                data.Add("DeliveryCity", "");
                data.Add("DeliveryPostCode", "");
                data.Add("DeliveryCountry", "");
                data.Add("DeliveryState", "");
                data.Add("DeliveryPhone", "");
            }

            data.Add("CustomerEMail", _workContext.CurrentCustomer.Email);

            //var strBasket = String.Empty;
            //strBasket = cart.Count + ":";

            //for (int i = 0; i < cart.Count; i++)
            //{
            //    ShoppingCartItem item = cart[i];
            //    strBasket += item.ProductVariant.FullProductName) + ":" +
            //                    item.Quantity + ":" + item.ProductVariant.Price + ":" +
            //                    item.ProductVariant.TaxCategoryId;
            //};

            //data.Add("Basket", strBasket);

            data.Add("AllowGiftAid", "0");

            // Allow fine control over AVS/CV2 checks and rules by changing this value. 0 is Default
            //data.Add("ApplyAVSCV2", "0");

            // Allow fine control over 3D-Secure checks and rules by changing this value. 0 is Default
            //data.Add("Apply3DSecure", "0");

            if (_sagePayServerPaymentSettings.Profile == ProfileValues.Low)
            {
                data.Add("Profile", "LOW"); //simpler payment page version.
            }

            var sageSystemUrl = SagePayHelper.GetSageSystemUrl(_sagePayServerPaymentSettings.ConnectTo, "purchase");

            string strResponse;

            try
            {
                var responseData = webClient.UploadValues(sageSystemUrl, data);

                strResponse = Encoding.ASCII.GetString(responseData);
            }
            catch (WebException ex)
            {
                result.Message = String.Format(@"Your server was unable to register this transaction with Sage Pay.
                    Check that you do not have a firewall restricting the POST and 
                    that your server can correctly resolve the address {0}. <br/>
                    The Status Number is: {1}<br/>
                    The Description given is: {2}", sageSystemUrl, ex.Status, ex.Message);

                return(result);
            }

            if (!string.IsNullOrWhiteSpace(strResponse))
            {
                var strStatus       = SagePayHelper.FindField("Status", strResponse);
                var strStatusDetail = SagePayHelper.FindField("StatusDetail", strResponse);

                switch (strStatus)
                {
                case "OK":

                    var strVpsTxId     = SagePayHelper.FindField("VPSTxId", strResponse);
                    var strSecurityKey = SagePayHelper.FindField("SecurityKey", strResponse);
                    var strNextUrl     = SagePayHelper.FindField("NextURL", strResponse);

                    var transx = new SagePayServerTransaction
                    {
                        CreatedOnUtc         = DateTime.UtcNow,
                        VpsTxId              = strVpsTxId,
                        SecurityKey          = strSecurityKey,
                        NotificationResponse = strResponse.Replace(Environment.NewLine, ";"),
                        VendorTxCode         = orderGuid.ToString(),
                    };

                    //Store this record in DB
                    _sagePayServerTransactionService.InsertSagePayServerTransaction(transx);

                    result.Success    = true;
                    result.PaymentUrl = strNextUrl;

                    return(result);

                case "MALFORMED":

                    result.Message = string.Format("Error {0}, {1} - {2}", strStatus, strStatusDetail, data.Encode());

                    break;

                case "INVALID":

                    result.Message = string.Format("Error {0}, {1} - {2}", strStatus, strStatusDetail, data.Encode());

                    break;

                default:

                    result.Message = string.Format("Error {0}, {1}", strStatus, strStatusDetail);

                    break;
                }
            }

            return(result);
        }
        /// <summary>
        /// This method is called when payment is submitted inside the iframe. This method is called from Sagepay not from us, that's why the response is a string what Sagepay is expected.
        /// This page is required to validate if the website that originated the transaction is the same one receiving the parameters (to avoid tampering with)
        /// </summary>
        /// <param name="strTxAuthNo"></param>
        /// <param name="strAvscv2"></param>
        /// <param name="strAddressResult"></param>
        /// <param name="strPostCodeResult"></param>
        /// <param name="strCv2Result"></param>
        /// <param name="strGiftAid"></param>
        /// <param name="str3DSecureStatus"></param>
        /// <param name="strCavv"></param>
        /// <param name="strAddressStatus"></param>
        /// <param name="strPayerStatus"></param>
        /// <param name="strCardType"></param>
        /// <param name="strLast4Digits"></param>
        /// <param name="strVpsTxId"></param>
        /// <param name="strVpsSignature"></param>
        /// <param name="strStatus"></param>
        /// <param name="strStatusDetail"></param>
        /// <param name="strVendorTxCode"></param>
        /// <returns></returns>
        public string ValidateTransaction(string strTxAuthNo, string strAvscv2, string strAddressResult, string strPostCodeResult, string strCv2Result, string strGiftAid, string str3DSecureStatus, string strCavv,
                                          string strAddressStatus, string strPayerStatus, string strCardType, string strLast4Digits, string strVpsTxId, string strVpsSignature, string strStatus, string strStatusDetail, string strVendorTxCode)
        {
            var strVendorName = _sagePayServerPaymentSettings.VendorName.ToLower();

            //Obtain from DB
            var transx = _sagePayServerTransactionService.GetSagePayServerTransactionByVendorTxCode(strVendorTxCode);

            if (transx == null)
            {
                strStatusDetail = "Vendor Transaction code " + strVendorTxCode + " does not exist.";

                return("Status=INVALID" + Environment.NewLine +
                       "RedirectURL=" + _webHelper.GetStoreLocation() + "Plugins/PaymentSagePayServer/ResponsePage?uid=" + strVendorTxCode + Environment.NewLine +
                       "StatusDetail=" + strStatusDetail);
            }

            if (string.IsNullOrWhiteSpace(transx.SecurityKey))
            {
                strStatusDetail = "Security Key for transaction " + strVendorTxCode + " is empty.";


                return("Status=INVALID" + Environment.NewLine +
                       "RedirectURL=" + _webHelper.GetStoreLocation() + "Plugins/PaymentSagePayServer/ResponsePage?uid=" + strVendorTxCode + Environment.NewLine +
                       "StatusDetail=" + strStatusDetail);
            }



            //Update DB with what we've got so far
            transx.VpsTxId            = strVpsTxId;
            transx.VpsSignature       = strVpsSignature;
            transx.Status             = strStatus;
            transx.StatusDetail       = strStatusDetail;
            transx.TxAuthNo           = strTxAuthNo;
            transx.Avscv2             = strAvscv2;
            transx.AddressResult      = strAddressResult;
            transx.PostCodeResult     = strPostCodeResult;
            transx.Cv2Result          = strCv2Result;
            transx.GiftAid            = strGiftAid;
            transx.ThreeDSecureStatus = str3DSecureStatus;
            transx.Cavv          = strCavv;
            transx.AddressStatus = strAddressStatus;
            transx.PayerStatus   = strPayerStatus;
            transx.CardType      = strCardType;
            transx.Last4Digits   = strLast4Digits;

            //Update DB with what we've got so far
            _sagePayServerTransactionService.UpdateSagePayServerTransaction(transx);

            var strMessage = strVpsTxId + strVendorTxCode + strStatus + strTxAuthNo + strVendorName + strAvscv2 + transx.SecurityKey +
                             strAddressResult + strPostCodeResult + strCv2Result + strGiftAid + str3DSecureStatus + strCavv +
                             strAddressStatus + strPayerStatus + strCardType + strLast4Digits;

            //Because Sagepay also hashed all these variables, we also need to do the same to verify that they are the same
            var strMySignature = SagePayHelper.HashMd5(strMessage);

            if (strMySignature != strVpsSignature)
            {
                transx.StatusDetail = "Your server was unable to register this transaction with Sage Pay. Cannot match the MD5 Hash. Order might be tampered with: " + strMessage;

                _sagePayServerTransactionService.UpdateSagePayServerTransaction(transx);

                return("Status=INVALID" + Environment.NewLine +
                       "RedirectURL=" + _webHelper.GetStoreLocation() + "Plugins/PaymentSagePayServer/ResponsePage?uid=" + strVendorTxCode + Environment.NewLine +
                       "StatusDetail=Your server was unable to register this transaction with Sage Pay. Cannot match the MD5 Hash. Order might be tampered with");
            }

            //Always send a Status of OK if we've read everything correctly. Only INVALID for messages with a Status of ERROR
            var responseStatus = strStatus == "ERROR" ? "INVALID" : "OK";

            return("Status=" + responseStatus + Environment.NewLine +
                   "RedirectURL=" + _webHelper.GetStoreLocation() + "Plugins/PaymentSagePayServer/ResponsePage?uid=" + strVendorTxCode);
        }
        /// <summary>
        /// Void an order
        /// </summary>
        /// <param name="orderGuid">Order guid</param>
        /// <returns></returns>
        public VoidTransactionResult VoidTransaction(String orderGuid)
        {
            var result = new VoidTransactionResult();

            var transx = _sagePayServerTransactionService.GetSagePayServerTransactionByVendorTxCode(orderGuid);

            if (transx == null)
            {
                result.Message = String.Format("SagePay Server vendor transaction code {0} does not exist.", orderGuid);
                return(result);
            }


            var webClient = new WebClient();
            var voidGuid  = Guid.NewGuid();

            var data = new QueryStringNameValueCollection
            {
                { "VPSProtocol", SagePayHelper.GetProtocol() },
                { "TxType", "VOID" },
                { "Vendor", _sagePayServerPaymentSettings.VendorName },
                { "VendorTxCode", voidGuid.ToString() },
                { "VPSTxId", transx.VpsTxId },
                { "SecurityKey", transx.SecurityKey },
                { "TxAuthNo", transx.TxAuthNo },
            };

            var postUrl = SagePayHelper.GetSageSystemUrl(_sagePayServerPaymentSettings.ConnectTo, "void");

            string strResponse;

            try
            {
                var responseData = webClient.UploadValues(postUrl, data);

                strResponse = Encoding.ASCII.GetString(responseData);
            }
            catch (WebException ex)
            {
                result.Message = (String.Format(
                                      @"Your server was unable to release this transaction with Sage Pay.
                    Check that you do not have a firewall restricting the POST and 
                    that your server can correctly resolve the address {0}. <br/>
                    The Status Number is: {1}<br/>
                    The Description given is: {2}", postUrl, ex.Status, ex.Message));
                return(result);
            }

            if (string.IsNullOrWhiteSpace(strResponse))
            {
                result.Message = (String.Format(
                                      @"Your server was unable to register this transaction with Sage Pay.
                    Check that you do not have a firewall restricting the POST and 
                    that your server can correctly resolve the address {0}.", postUrl));
                return(result);
            }
            var strStatus       = SagePayHelper.FindField("Status", strResponse);
            var strStatusDetail = SagePayHelper.FindField("StatusDetail", strResponse);

            switch (strStatus)
            {
            case "OK":

                result.Success = true;
                break;

            case "MALFORMED":
                result.Message = (string.Format("Error ({0}: {1}) <br/> {2}", strStatus, strStatusDetail, data.Encode()));
                break;

            case "INVALID":
                result.Message = (string.Format("Error ({0}: {1}) <br/> {2}", strStatus, strStatusDetail, data.Encode()));
                break;

            default:
                result.Message = (string.Format("Error ({0}: {1})", strStatus, strStatusDetail));
                break;
            }

            return(result);
        }
Example #4
0
        public ActionResult PaymentInfo()
        {
            var model = new PaymentSagePayServerModel();

            //First validate if this is the response of failed transaction (Status INVALID)
            var StatusDetail = Request.QueryString["StatusDetail"];

            if (StatusDetail != null)
            {
                model.Warnings.Add(StatusDetail);
                return(View("Nop.Plugin.Payments.SagePayServer.Views.PaymentSagePayServer.PaymentInfo", model));
            }

            var webClient = new WebClient();

            var data = new NVPCodec();

            data.Add("VPSProtocol", SagePayHelper.GetProtocol());
            data.Add("TxType", _sagePayServerPaymentSettings.TransactType);
            data.Add("Vendor", _sagePayServerPaymentSettings.VendorName.ToLower());

            var orderGuid = Guid.NewGuid();

            data.Add("VendorTxCode", orderGuid.ToString());

            if (!String.IsNullOrWhiteSpace(_sagePayServerPaymentSettings.PartnerID))
            {
                data.Add("ReferrerID", _sagePayServerPaymentSettings.PartnerID);
            }

            var cart = _workContext.CurrentCustomer.ShoppingCartItems.Where(sci => sci.ShoppingCartType == ShoppingCartType.ShoppingCart).ToList();

            decimal?shoppingCartTotalBase = _orderTotalCalculationService.GetShoppingCartTotal(cart);

            var OrderTotal = shoppingCartTotalBase.GetValueOrDefault();

            data.Add("Amount", OrderTotal.ToString("F2", CultureInfo.InvariantCulture));

            if (_workContext.WorkingCurrency != null)
            {
                data.Add("Currency", _workContext.WorkingCurrency.CurrencyCode);
            }
            else if (_workContext.CurrentCustomer.CurrencyId.HasValue && _workContext.CurrentCustomer.Currency != null)
            {
                data.Add("Currency", _workContext.CurrentCustomer.Currency.CurrencyCode);
            }
            else
            {
                data.Add("Currency", _currencyService.GetCurrencyById(_currencySettings.PrimaryStoreCurrencyId).CurrencyCode);
            }


            data.Add("Description", "eCommerce Order from " + _sagePayServerPaymentSettings.VendorName);

            // The Notification URL is the page to which Server calls back when a transaction completes

            var notificationUrl = _sagePayServerPaymentSettings.NotificationFullyQualifiedDomainName;

            data.Add("NotificationURL", notificationUrl + "Plugins/PaymentSagePayServer/NotificationPage");

            // Billing Details
            data.Add("BillingSurname", _workContext.CurrentCustomer.BillingAddress.LastName);
            data.Add("BillingFirstnames", _workContext.CurrentCustomer.BillingAddress.FirstName);
            data.Add("BillingAddress1", _workContext.CurrentCustomer.BillingAddress.Address1);

            if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.BillingAddress.Address2))
            {
                data.Add("BillingAddress2", _workContext.CurrentCustomer.BillingAddress.Address2);
            }

            data.Add("BillingCity", _workContext.CurrentCustomer.BillingAddress.City);
            data.Add("BillingPostCode", _workContext.CurrentCustomer.BillingAddress.ZipPostalCode);
            data.Add("BillingCountry", _workContext.CurrentCustomer.BillingAddress.Country.TwoLetterIsoCode); //TODO: Verify if it is ISO 3166-1 country code

            if (_workContext.CurrentCustomer.BillingAddress.StateProvince != null)
            {
                data.Add("BillingState", _workContext.CurrentCustomer.BillingAddress.StateProvince.Abbreviation);
            }

            if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.BillingAddress.PhoneNumber))
            {
                data.Add("BillingPhone", _workContext.CurrentCustomer.BillingAddress.PhoneNumber);
            }


            // Delivery Details
            if (_workContext.CurrentCustomer.ShippingAddress != null)
            {
                data.Add("DeliverySurname", _workContext.CurrentCustomer.ShippingAddress.LastName);
                data.Add("DeliveryFirstnames", _workContext.CurrentCustomer.ShippingAddress.FirstName);
                data.Add("DeliveryAddress1", _workContext.CurrentCustomer.ShippingAddress.Address1);

                if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.ShippingAddress.Address2))
                {
                    data.Add("DeliveryAddress2", _workContext.CurrentCustomer.ShippingAddress.Address2);
                }

                data.Add("DeliveryCity", _workContext.CurrentCustomer.ShippingAddress.City);
                data.Add("DeliveryPostCode", _workContext.CurrentCustomer.ShippingAddress.ZipPostalCode);

                if (_workContext.CurrentCustomer.ShippingAddress.Country != null)
                {
                    data.Add("DeliveryCountry", _workContext.CurrentCustomer.ShippingAddress.Country.TwoLetterIsoCode);
                }

                if (_workContext.CurrentCustomer.ShippingAddress.StateProvince != null)
                {
                    data.Add("DeliveryState", _workContext.CurrentCustomer.ShippingAddress.StateProvince.Abbreviation);
                }

                if (!String.IsNullOrWhiteSpace(_workContext.CurrentCustomer.ShippingAddress.PhoneNumber))
                {
                    data.Add("DeliveryPhone", _workContext.CurrentCustomer.ShippingAddress.PhoneNumber);
                }
            }
            else
            {
                //Thanks to 'nomisit' for pointing this out. http://www.nopcommerce.com/p/258/sagepay-server-integration-iframe-and-redirect-methods.aspx
                data.Add("DeliverySurname", "");
                data.Add("DeliveryFirstnames", "");
                data.Add("DeliveryAddress1", "");
                data.Add("DeliveryAddress2", "");
                data.Add("DeliveryCity", "");
                data.Add("DeliveryPostCode", "");
                data.Add("DeliveryCountry", "");
                data.Add("DeliveryState", "");
                data.Add("DeliveryPhone", "");
            }

            data.Add("CustomerEMail", _workContext.CurrentCustomer.Email);

            //var strBasket = String.Empty;
            //strBasket = cart.Count + ":";

            //for (int i = 0; i < cart.Count; i++)
            //{
            //    ShoppingCartItem item = cart[i];
            //    strBasket += item.ProductVariant.FullProductName) + ":" +
            //                    item.Quantity + ":" + item.ProductVariant.Price + ":" +
            //                    item.ProductVariant.TaxCategoryId;
            //};

            //data.Add("Basket", strBasket);

            data.Add("AllowGiftAid", "0");

            // Allow fine control over AVS/CV2 checks and rules by changing this value. 0 is Default
            if (_sagePayServerPaymentSettings.TransactType != "AUTHENTICATE")
            {
                data.Add("ApplyAVSCV2", "0");
            }

            // Allow fine control over 3D-Secure checks and rules by changing this value. 0 is Default
            data.Add("Apply3DSecure", "0");

            if (String.Compare(_sagePayServerPaymentSettings.Profile, "LOW", true) == 0)
            {
                data.Add("Profile", "LOW"); //simpler payment page version.
            }

            var postURL = SagePayHelper.GetSageSystemUrl(_sagePayServerPaymentSettings.ConnectTo, "purchase");

            string strResponse = string.Empty;

            try
            {
                Byte[] responseData = webClient.UploadValues(postURL, data);

                strResponse = Encoding.ASCII.GetString(responseData);
            }
            catch (WebException ex)
            {
                return(Content(String.Format(
                                   @"Your server was unable to register this transaction with Sage Pay.
                    Check that you do not have a firewall restricting the POST and 
                    that your server can correctly resolve the address {0}. <br/>
                    The Status Number is: {1}<br/>
                    The Description given is: {2}", postURL, ex.Status, ex.Message)));
            }

            if (string.IsNullOrWhiteSpace(strResponse))
            {
                return(Content(String.Format(
                                   @"Your server was unable to register this transaction with Sage Pay.
                    Check that you do not have a firewall restricting the POST and 
                    that your server can correctly resolve the address {0}.", postURL)));
            }

            var strStatus       = SagePayHelper.FindField("Status", strResponse);
            var strStatusDetail = SagePayHelper.FindField("StatusDetail", strResponse);

            switch (strStatus)
            {
            case "OK":

                var strVPSTxId     = SagePayHelper.FindField("VPSTxId", strResponse);
                var strSecurityKey = SagePayHelper.FindField("SecurityKey", strResponse);
                var strNextURL     = SagePayHelper.FindField("NextURL", strResponse);

                var transx = new SagePayServerTransaction()
                {
                    CreatedOnUtc         = DateTime.UtcNow,
                    VPSTxId              = strVPSTxId,
                    SecurityKey          = strSecurityKey,
                    NotificationResponse = strResponse,
                    VendorTxCode         = orderGuid.ToString()
                };

                //Store this record in DB
                _sagePayServerTransactionService.InsertSagePayServerTransaction(transx);


                ViewBag.UseOnePageCheckout = UseOnePageCheckout();

                if (_sagePayServerPaymentSettings.Profile == SagePayServerPaymentSettings.ProfileValues.LOW || ViewBag.UseOnePageCheckout)
                {    //Iframe
                    model.FrameURL = strNextURL;

                    return(View("Nop.Plugin.Payments.SagePayServer.Views.PaymentSagePayServer.PaymentInfo", model));
                }
                else
                {
                    HttpContext.Response.Redirect(strNextURL);
                    HttpContext.Response.End();

                    return(null);
                }


            case "MALFORMED":
                return(Content(string.Format("Error ({0}: {1}) <br/> {2}", strStatus, strStatusDetail, data.Encode())));

            case "INVALID":
                return(Content(string.Format("Error ({0}: {1}) <br/> {2}", strStatus, strStatusDetail, data.Encode())));

            default:
                return(Content(string.Format("Error ({0}: {1})", strStatus, strStatusDetail)));
            }
        }