public ActionResult Pay(PayViewModel payViewModel) { var orderGuid = Guid.NewGuid().ToString(); // We remove port info to help when the site is behind a load balancer/firewall that does port rewrites. var scheme = Request.Url.Scheme; var host = Request.Url.Host; var oldPort = Request.Url.Port.ToString(); var returnUrl = Url.Action("Returned", "Checkout", new RouteValueDictionary(), scheme, host).Replace(oldPort, "") + "?orderGuid=" + orderGuid; var cancelUrl = Url.Action("Cancelled", "Checkout", new RouteValueDictionary(), scheme, host).Replace(oldPort, ""); // When the shop is hosted by Payson the IPN scheme must be http and not https var ipnNotificationUrl = Url.Action("IPN", "Checkout", new RouteValueDictionary(), "http", host).Replace(oldPort, "") + "?orderGuid=" + orderGuid; var sender = new PaysonIntegration.Utils.Sender(payViewModel.Sender.Email); sender.FirstName = payViewModel.Sender.FirstName; sender.LastName = payViewModel.Sender.LastName; var totalAmount = payViewModel.OrderItems.Sum(o => o.UnitPrice * o.Quantity * (1 + o.TaxPercentage)); var receiver = new PaysonIntegration.Utils.Receiver(payViewModel.Receiver.Email, totalAmount); receiver.FirstName = payViewModel.Receiver.FirstName; receiver.LastName = payViewModel.Receiver.LastName; receiver.SetPrimaryReceiver(true); var payData = new PayData(returnUrl, cancelUrl, payViewModel.Memo, sender, new List <PaysonIntegration.Utils.Receiver> { receiver }); switch (payViewModel.GuaranteeOffered) { case GuaranteeOffered.NO: payData.GuaranteeOffered = PaysonIntegration.Utils.GuaranteeOffered.No; break; case GuaranteeOffered.OPTIONAL: payData.GuaranteeOffered = PaysonIntegration.Utils.GuaranteeOffered.Optional; break; case GuaranteeOffered.REQUIRED: payData.GuaranteeOffered = PaysonIntegration.Utils.GuaranteeOffered.Required; break; default: payData.GuaranteeOffered = null; break; } payData.SetCurrencyCode(payViewModel.CurrencyCode); var fundingConstraints = new List <FundingConstraint>(); if (payViewModel.PaymentMethod == PaymentMethod.PaysonInvoice) { fundingConstraints.Add(FundingConstraint.Invoice); } else if (payViewModel.PaymentMethod == PaymentMethod.PaysonAll) { fundingConstraints.Add(FundingConstraint.Bank); fundingConstraints.Add(FundingConstraint.CreditCard); fundingConstraints.Add(FundingConstraint.Invoice); } else { fundingConstraints.Add(FundingConstraint.Bank); fundingConstraints.Add(FundingConstraint.CreditCard); } payData.SetFundingConstraints(fundingConstraints); payData.SetInvoiceFee(payViewModel.InvoiceFee); payData.SetIpnNotificationUrl(ipnNotificationUrl); payData.SetLocaleCode(payViewModel.LocaleCode); if (payViewModel.PaymentMethod == PaymentMethod.PaysonInvoice || payViewModel.PaymentMethod == PaymentMethod.PaysonAll || payViewModel.IncludeOrderDetails) { var orderItems = new List <PaysonIntegration.Utils.OrderItem>(); foreach (var orderModel in payViewModel.OrderItems) { var oi = new PaysonIntegration.Utils.OrderItem(orderModel.Description); oi.SetOptionalParameters(orderModel.Sku, orderModel.Quantity, orderModel.UnitPrice, orderModel.TaxPercentage); orderItems.Add(oi); } payData.SetOrderItems(orderItems); } payData.SetTrackingId(orderGuid); var api = new PaysonApi(payViewModel.UserId, payViewModel.UserKey, ApplicationId, true); var response = api.MakePayRequest(payData); if (response.Success) { var state = new PurchaseState { UserId = payViewModel.UserId, UserKey = payViewModel.UserKey, Token = response.Token, Updates = new Dictionary <DateTime, string> { { DateTime.Now, "Created" } }, OrderGuid = orderGuid, LatestStatus = PaymentStatus.Created.ToString(), ReceiverEmail = receiver.Email, }; repository.SavePurchaseState(state); string forwardUrl = string.IsNullOrWhiteSpace(payViewModel.ForwardUrl) ? api.GetForwardPayUrl(response.Token) : payViewModel.ForwardUrl + response.Token; return(Redirect(forwardUrl)); } ViewBag.Errors = response.ErrorMessages; return(View("Index", GetDefaultPayViewModel())); }