使用Sitefinity电子商务实现3D安全

Question

我想为通过网站进行的信用卡支付添加3D安全身份验证。我使用电子商务插件Sitefinity 8和SagePay作为支付处理器。

我已经创建了一个自定义支付提供商，可以成功地将用户重定向到3D安全页面。我可以使用SagePay集成工具包（即从电子商务插件外部）对SagePay进行第二次身份验证调用。然而，由于内部电子商务课程的运作方式，我正在努力寻找完成付款的方法。

困难在于，如果需要3D安全身份验证，订单处理器会将付款视为拒绝，但似乎没有一种方法可以在不使用内置功能的情况下正确处理订单。从我对电子商务库的检查来看，由于internal修饰符和具体实现，似乎没有办法扩展或修改这些类。

完成验证后，如何处理订单？有人成功地通过电子商务实现了3D安全吗？或者知道这是否可能？

这是我目前的自定义支付提供商。

public class CustomSagePayProvider : SagePayProvider
{
    // Rest of code...
    protected override IPaymentResponse ParseReponse(string uniqueTransactionCode, string responseXml)
    {
        var paymentResponse = base.ParseReponse(uniqueTransactionCode, responseXml);
        if (Requires3DSecure(paymentResponse))
        {
            var responseFields = GetResponseAsDictionary(responseXml);
            Set3DSecureFields(responseFields, paymentResponse);
        }
        return paymentResponse;
    }
    private bool Requires3DSecure(IPaymentResponse paymentResponse)
    {
        return paymentResponse.GatewayCSCResponse == "OK";
    }
    private void Set3DSecureFields(Dictionary<string, string> responseFields, IPaymentResponse paymentResponse)
    {
        var postValues = new NameValueCollection();
        postValues.Add("MD", responseFields.ContainsKey("MD") ? responseFields["MD"] : string.Empty);
        postValues.Add("PAReq", responseFields.ContainsKey("PAReq") ? responseFields["PAReq"] : string.Empty);
        paymentResponse.GatewayRedirectUrlPostValues = postValues;
        paymentResponse.GatewayRedirectUrl = responseFields.ContainsKey("ACSURL") ? responseFields["ACSURL"] : string.Empty;
    }
}

这是使用.NET SagePay集成套件的3D安全支付过程

using SagePay.IntegrationKit;
using SagePay.IntegrationKit.Messages;
// Rest of code
var sagePay = new SagePayIntegration();
IThreeDAuthRequest request = new DataObject();
request.Md = Request.Form["MD"];
request.PaRes = Request.Form["PaRes"];
sagePay.RequestQueryString = sagePay.BuildQueryString(request, ProtocolMessage.THREE_D_AUTH_REQUEST, ProtocolVersion.V_223);
sagePay.ResponseQueryString = sagePay.ProcessWebRequestToSagePay("https://test.sagepay.com/gateway/service/direct3dcallback.vsp", sagePay.RequestQueryString);
var result = sagePay.GetDirectPaymentResult(sagePay.ResponseQueryString);
if (result.Status == ResponseStatus.OK)
{
    // Process order
}

Answer 1

我能够通过将第二次身份验证呼叫视为异地支付并将IOffsitePaymentProcessorProvider接口添加到我的支付提供商类来添加3D安全身份验证

public class CustomSagePayProvider : SagePayProvider, IOffsitePaymentProcessorProvider
{
    // Triggered after payments that have been 3D Secure authenticated
    public IPaymentResponse HandleOffsiteNotification(int orderNumber, HttpRequest request, PaymentMethod paymentMethod)
    {
        var paymentResponse = new PaymentResponse() { IsOffsitePayment = true };
        var sagePay = new SagePayIntegration();
        var result = sagePay.GetDirectPaymentResult(request.Params.ToString());
        if (result.ThreeDSecureStatus == ThreeDSecureStatus.OK)
        {
            paymentResponse.IsSuccess = true;
            paymentResponse.GatewayTransactionID = result.TxAuthNo.ToString();
        }
        return paymentResponse;
    }
    public IPaymentResponse HandleOffsiteReturn(int orderNumber, HttpRequest request, PaymentMethod paymentMethod)
    {
        throw new NotImplementedException();
    }

在第一次请求身份验证时，我将通知url作为termUrl值中的查询字符串参数传递给SagePay（url必须是/Ecommerce/offsite-payment-notification/才能使用内置的越位支付通知处理程序）。

var notificationUrl = request.Url.GetLeftPart(UriPartial.Authority) + "/Ecommerce/offsite-payment-notification/";

在用户完成身份验证后，在SagePay的回调中，我使用SagePay集成工具包来处理身份验证的结果。

var sagePay = new SagePayIntegration();  
IThreeDAuthRequest request = new DataObject();
request.Md = md;
request.PaRes = paRes;
sagePay.RequestQueryString = sagePay.BuildQueryString(request, ProtocolMessage.THREE_D_AUTH_REQUEST, ProtocolVersion.V_223);
sagePay.ResponseQueryString = sagePay.ProcessWebRequestToSagePay("https://test.sagepay.com/gateway/service/direct3dcallback.vsp", sagePay.RequestQueryString);
return sagePay.GetDirectPaymentResult(sagePay.ResponseQueryString);

最后，我通过发布到url www.mysite.com/Ecommerce/offsite-payment-notification/来触发HandleOffsiteNotification事件。这会将订单标记为已完成，更新库存水平并清理用户的购物篮。为了简单起见，在本例中，我使用SagePay集成工具包对象来构建查询字符串并发布到url。

var sagePay = new SagePayIntegration();   
var ordersManager = OrdersManager.GetManager();
var query = sagePay.ConvertSagePayMessageToNameValueCollection(ProtocolMessage.DIRECT_PAYMENT_RESULT, typeof(IDirectPaymentResult), result, ProtocolVersion.V_223);
// Required Sitefinity fields to trigger HandleOffsiteNotification in IOffsitePaymentProcessorProvider
query.Add("invoice", orderNumber.ToString());
query.Add("provider", ordersManager.Provider.Name);
var queryString = sagePay.BuildQueryString(query);
// Post 3d secure details to this site simulate an offsite payment processor response
sagePay.ProcessWebRequestToSagePay(notificationUrl, queryString);