Question

我想为通过网站进行的信用卡付款添加3D安全身份验证。我使用的是Sitefinity 8，电子商务插件和SagePay作为支付处理器。

我创建了一个自定义支付提供商，可以成功将用户重定向到3D安全页面。我能够使用SagePay集成套件（即从电子商务插件外部）对SagePay执行第二次身份验证调用。但是，由于内部电子商务课程的运作方式，我很难找到完成付款的方法。

难点在于，如果需要3D安全身份验证，订单处理器会将付款视为已拒收，但似乎没有办法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，似乎无法扩展或修改这些类。

完成身份验证后，如何处理订单？有没有人通过电子商务成功实施3D安全？或者知道是否可能？

目前这是我的自定义付款服务提供商。

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安全支付流程

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非现场付款并将IOffsitePaymentProcessorProvider界面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();
    }

首次请求身份验证时，我将通知url作为查询字符串参数传递给发布到SagePay的termUrl值（网址必须为/Ecommerce/offsite-payment-notification/才能使用内置的越位付款通知处理程序。）

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

在用户完成身份验证后来自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，我通过发布到网址HandleOffsiteNotification来触发www.mysite.com/Ecommerce/offsite-payment-notification/事件。这标志着订单完整，更新库存水平并清理用户的篮子。为简单起见，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);

使用Sitefinity电子商务实现3D安全

1 个答案: