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

我创建了一个自定义支付提供商，并且可以成功地将用户重定向到 3D 安全页面。我能够使用 SagePay 集成工具包（即从电子商务插件外部）执行对 SagePay 的第二次身份验证调用。但是，由于内部电子商务类的功能，我正在努力寻找一种完成付款的方法。

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已拒绝，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。internal根据我对电子商务库的检查，由于修饰符和具体实现，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？或者知道有没有可能？

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
}
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1 回答 1

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IOffsitePaymentProcessorProvider通过将第二次身份验证调用视为异地支付并将接口添加到我的支付提供商类，我能够添加 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();
    }

我在第一次请求身份验证时将通知 url 作为查询字符串参数传递termUrl给 SagePay 的值（该 url 必须/Ecommerce/offsite-payment-notification/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/";

在用户完成认证后从 SagePay 的回调中，我使用 SagePay 集成套件来处理认证结果。

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);

HandleOffsiteNotification最后，我通过发布到 url 来触发事件www.mysite.com/Ecommerce/offsite-payment-notification/。这将订单标记为完成，更新库存水平并清理用户的购物篮。在此示例中为简单起见，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);
于 2016-01-18T10:32:55.743 回答