Paypal IPN模拟器始终返回INVALID，尽管回发正确

我们正在升级我们的IPN以使用TLS，并在使用IPN模拟器时不断回复INVALID

当请求进入侦听器时，它会被记录。 在数据返回到paypal之前，会记录URL和数据。 此信息如下。

数据似乎没有任何问题。 我甚至使用diffmerge来确定除了cmd = _notify-validate＆之外没有任何差异

只是IPN模拟器永远不会返回有效吗？

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请求之前的URL是：

https://www.sandbox.paypal.com/cgi-bin/webscr 

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发布的数据是

 cmd=_notify-validate&payment_type=instant&payment_date=Mon May 23 2016 17:41:16 GMT 1000 (E. Australia Standard Time)&payment_status=Completed&address_status=confirmed&payer_status=verified&first_name=John&last_name=Smith&payer_email=[e-mail]&payer_id=TESTBUYERID01&address_name=John Smith&address_country=United States&address_country_code=US&address_zip=95131&address_state=CA&address_city=San Jose&address_street=123 any street&business=[e-mail]&receiver_email=[e-mail]&receiver_id=[e-mail]&residence_country=US&item_name=something&item_number=CHIMPREWRITER-LIFE&quantity=1&shipping=3.04&tax=2.02&mc_currency=USD&mc_fee=0.44&mc_gross=139&mc_gross_1=139&txn_type=web_accept&txn_id=928133899&notify_version=2.1&custom=xyz123&invoice=abc1234&test_ipn=1&verify_sign=AFcWxV21C7fd0v3bYYYRCpSSRl31AU-9VToMcj-IcSKMfmb8nz2kgIe. 

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Paypal的数据是

 payment_type=instant&payment_date=Mon May 23 2016 17:41:16 GMT 1000 (E. Australia Standard Time)&payment_status=Completed&address_status=confirmed&payer_status=verified&first_name=John&last_name=Smith&payer_email=[e-mail]&payer_id=TESTBUYERID01&address_name=John Smith&address_country=United States&address_country_code=US&address_zip=95131&address_state=CA&address_city=San Jose&address_street=123 any street&business=[e-mail]&receiver_email=[e-mail]&receiver_id=[e-mail]&residence_country=US&item_name=something&item_number=CHIMPREWRITER-LIFE&quantity=1&shipping=3.04&tax=2.02&mc_currency=USD&mc_fee=0.44&mc_gross=139&mc_gross_1=139&txn_type=web_accept&txn_id=928133899&notify_version=2.1&custom=xyz123&invoice=abc1234&test_ipn=1&verify_sign=AFcWxV21C7fd0v3bYYYRCpSSRl31AU-9VToMcj-IcSKMfmb8nz2kgIe. 

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供参考，代码是：

 // This was legacy code I was trying in case there were formatting problems. The code "cmd=_notify-validate&" + _request.Form; does some URL encoding which I thought might be causing problems. Either way, we still get INVALID string s = "cmd=_notify-validate"; foreach (string paramName in _request.Form) { string paramValue = LicServiceTools.Encode(_request.Form[paramName]); //s = s + string.Format("&{0}={1}", paramName, paramValue); s = s + string.Format("&{0}={1}", paramName, _request.Form[paramName]); } string address = "https://www.paypal.com/cgi-bin/webscr"; if (this.useSandBox) { address = "https://www.sandbox.paypal.com/cgi-bin/webscr"; } System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; HttpWebRequest req = (HttpWebRequest)WebRequest.Create(address); req.ProtocolVersion = HttpVersion.Version11; //Set values for the request back req.Method = "POST"; req.ContentType = "application/x-www-form-urlencoded"; // ALSO DOESNT WORK //string strRequest = "cmd=_notify-validate&" + _request.Form; //req.ContentLength = strRequest.Length; errorLogger.Info(s); errorLogger.Info(address); //Send the request to PayPal and get the response StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII); streamOut.Write(s); streamOut.Close(); StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream()); string strResponse = streamIn.ReadToEnd(); streamIn.Close(); // at this point, strResponse = INVALID 

Answer 1

由于时区中的“+”，因此新的IPN模拟器payment_date变得混乱。 没有任何实时通知似乎列出这样的时区，所以以前的代码工作。

这个post节省了一天： https ： //github.com/paypal/ipn-code-samples/issues/51