Paypal IPN 一直失败,我做错了啥?
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【中文标题】Paypal IPN 一直失败,我做错了啥?【英文标题】:Paypal IPN keeps failing, what am I doing wrong?Paypal IPN 一直失败,我做错了什么? 【发布时间】:2019-02-02 10:13:35 【问题描述】:自上周五以来,我一直在努力让这件事发挥作用。 我正在使用 C# asp.net 4.5 项目,Paypal 示例代码只有 MVC 和 .net CORE 示例,这两个我都不太熟悉。
我几乎没有做过 MVC 编程。所以我决定硬着头皮建了一个单独的 MVC 项目并添加了一个控制器,代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Collections.Specialized;
using System.IO;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
namespace paypal_ipn.Controllers
public class IPNlistenerController : Controller
// GET: IPNlistener
public ActionResult Index()
return Receive();
[HttpPost]
public HttpStatusCodeResult Receive()
//Store the IPN received from PayPal
LogRequest(Request);
//Fire and forget verification task
Task.Run(() => VerifyTask(Request));
//Reply back a 200 code
return new HttpStatusCodeResult(HttpStatusCode.OK);
private void VerifyTask(HttpRequestBase ipnRequest)
ShantMailer.SendEmail("my@email.com", "IPN MVC called", "yup");
var verificationResponse = string.Empty;
//Post back to either sandbox or live
string strSandbox = "https://ipnpb.sandbox.paypal.com/cgi-bin/webscr";
string strLive = "https://ipnpb.paypal.com/cgi-bin/webscr";
string strRequest= string.Empty;
try
var verificationRequest = (HttpWebRequest)WebRequest.Create(strSandbox);
//Set values for the verification request
verificationRequest.Method = "POST";
verificationRequest.ContentType = "application/x-www-form-urlencoded";
var param = Request.BinaryRead(ipnRequest.ContentLength);
strRequest = Encoding.ASCII.GetString(param);
//Add cmd=_notify-validate to the payload
strRequest = "cmd=_notify-validate&" + strRequest;
verificationRequest.ContentLength = strRequest.Length;
//Attach payload to the verification request
var streamOut = new StreamWriter(verificationRequest.GetRequestStream(), Encoding.ASCII);
streamOut.Write(strRequest);
streamOut.Close();
//Send the request to PayPal and get the response
var streamIn = new StreamReader(verificationRequest.GetResponse().GetResponseStream());
verificationResponse = streamIn.ReadToEnd();
streamIn.Close();
catch (Exception ex)
string nvcs = "Name Value Pairs: <br/>";
try
NameValueCollection these_argies = HttpUtility.ParseQueryString(strRequest);
foreach (string s in these_argies)
foreach (string v in these_argies.GetValues(s))
nvcs += s + ": " + v + "<br/>";
catch
ShantMailer.SendError(ex.Message + "<br/><br/>" + ex.InnerException + "<br/><br/>" + ex.StackTrace + "<br/><br/>" + nvcs + "<br/><br/>Request: " + strRequest + "<br/><br/>Response: " + verificationResponse);
//Capture exception for manual investigation
ProcessVerificationResponse(verificationResponse, strRequest);
private void LogRequest(HttpRequestBase request)
// Persist the request values into a database or temporary data store
private void ProcessVerificationResponse(string verificationResponse, string strRequest)
if (verificationResponse.Equals("VERIFIED"))
ShantMailer.SendEmail("my@email.com", "IPN", strRequest + " <br><br><br> " + verificationResponse);
// check that Payment_status=Completed
// check that Txn_id has not been previously processed
// check that Receiver_email is your Primary PayPal email
// check that Payment_amount/Payment_currency are correct
// process payment
else if (verificationResponse.Equals("INVALID"))
ShantMailer.SendEmail("my@email.com", "IPN", strRequest + " <br><br><br> " + verificationResponse);
//Log for manual investigation
else
//Log error
My solution explorer looks like this
现在,当我从浏览器调用该页面时,我会在 Chrome 开发者控制台(网络选项卡)中看到 HttpResponse 200
如您所见,我什至在我的代码中加入了检查点,用于向我发送电子邮件通知以进行调试。当我自己在浏览器中加载页面时,我收到了“IPN MVC Called”电子邮件。但是当我把它交给 IPN 模拟器时,Paypal 一直说“没有发送 IPN,也没有验证握手。请检查您的信息。”
Paypal 在他们的文档中并不一致,一些页面说使用“https://ipnpb.paypal.com/cgi-bin/webscr”,而在他们的代码示例中它是“https://www.paypal.com/cgi-bin/webscr”
或者对于沙弓“https://ipnpb.sandbox.paypal.com/cgi-bin/webscr”与他们的代码示例“https://www.sandbox.paypal.com/cgi-bin/webscr”
无论如何,我已经尝试了所有可能的组合,但仍然不确定出了什么问题。
这是我的听众所在的地方:https://www.shantwebdesign.com/paypal_ipn/IPNlistener/Index/
非常感谢任何帮助或领导。 谢谢
【问题讨论】:
【参考方案1】:问题解决了。 确保您的 SSL 在 TLS 版本是 1.2 Paypal 说 1.2 或更高版本,我有 1.3 没有用。降级到 1.2 成功了
【讨论】:
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