Question

我一直在尝试在我们公司的网站上实施paypal IPN系统。当我在IPN沙箱工具中测试我的脚本时，它已经过验证并且一切顺利，但是当我将其移动时，IPN返回为无效，但付款已经完成。当我检查帐户中的IPN历史记录时，我可以通过HTTP Response 200看到此IPN消息：

mc_gross=0.01&invoice=40&protection_eligibility=Ineligible&item_number1=&payer_id=mypayerId&tax=0.00&payment_date=08:06:52 Sep 03, 2013 PDT&payment_status=Completed&charset=windows-1252&mc_shipping=0.00&mc_handling=0.00&first_name=myName&mc_fee=0.01&notify_version=3.7&custom=18528&payer_status=verified&business=bussiness_mail&num_cart_items=1&mc_handling1=0.00&verify_sign=AJ.HL1f2A9aoBiFQCLn.3J-QkKQGAF.RVW8er5rbGJ6SsQFWBbStuRtD&payer_email=myMail&mc_shipping1=0.00&tax1=0.00&txn_id=61052338B4613440H&payment_type=instant&last_name=MySurname&item_name1=Paquete Lite&receiver_email=mybussiness_mail&payment_fee=&quantity1=1&receiver_id=SVRXVCZYE2AYC&txn_type=cart&mc_gross_1=0.01&mc_currency=EUR&residence_country=ES&transaction_subject=18528&payment_gross=&ipn_track_id=38c492cbe6257

Paypal实时凭据没问题。
网址正常（https://www.paypal.com/cgi-bin/webscr）

我的IPNHandler是一个Java Servlet。 doPost行动是：

 @Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    // Java JSP
    log.error("IPN doPost " + new Date().getHours() + ":" + new Date().getMinutes() + ":" + new Date().getSeconds());

    // read post from PayPal system and add 'cmd'
    Enumeration en = request.getParameterNames();
    String str = "cmd=_notify-validate";
    while (en.hasMoreElements()) {
        String paramName = (String) en.nextElement();
        String paramValue = request.getParameter(paramName);
        paramValue = new String(paramValue.getBytes("iso-8859-1"), "utf-8");
        str = str + "&" + paramName + "=" + URLEncoder.encode(paramValue);
    }

    boolean isSandbox = "true".equals(PropertiesManager.getProperty("signbox", "PaypalSandbox"));
    // post back to PayPal system to validate
    // NOTE: change http: to https: in the following URL to verify using SSL (for increased security).
    // using HTTPS requires either Java 1.4 or greater, or Java Secure Socket Extension (JSSE)
    // and configured for older versions.
    String url = null;
    if (isSandbox){
        url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
    }else{
        url = "https://www.paypal.com/cgi-bin/webscr";
    }
    log.error("La url de a la que redirigimos a Paypal es " + url);
    URL u = new URL(url);
    URLConnection uc = u.openConnection();
    uc.setDoOutput(true);
    uc.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    PrintWriter pw = new PrintWriter(uc.getOutputStream());
    pw.println(str);
    pw.close();

    BufferedReader in = new BufferedReader(
            new InputStreamReader(uc.getInputStream()));
    String res = in.readLine();
    in.close();
    log.error("Tras abrir la conexión, res es = " + res);

    // assign posted variables to local variables
    String idUser = request.getParameter("custom");
    String idCompra = request.getParameter("invoice");
    String paymentStatus = request.getParameter("payment_status");
    String paymentAmount = request.getParameter("mc_gross");
    String fee = request.getParameter("mc_fee");
    String paymentCurrency = request.getParameter("mc_currency");
    String txnId = request.getParameter("txn_id");
    String receiptId = request.getParameter("receipt_id");
    String receiverEmail = request.getParameter("receiver_email");
    String payerEmail = request.getParameter("payer_email");
    String paymentType = request.getParameter("payment_type");
    String txnType = request.getParameter("txn_type");

    if (!"instant".equals(paymentType) || !"cart".equals(txnType)) {
        log.debug("NO ES UN CART CHECKOUT. Detalles:");
        log.debug("idCompra=" + idCompra);
        log.debug("status=" + paymentStatus);
        log.debug("amount=" + paymentAmount);
        log.debug("currency=" + paymentCurrency);
        log.debug("transactionId=" + txnId);
        log.debug("receiptId=" + receiptId);
        log.debug("receiverEmail=" + receiverEmail);
        log.debug("payerEmail=" + payerEmail);
        log.debug("paymentType=" + paymentType);
        log.debug("txnType=" + txnType);

        return;
    }

    **//HERE THE RESPONSE IS INVALID IN LIVE MODE**
    if (res != null && res.equals("VERIFIED")) { //res = "VERIFIED" res = "INVALID"
        // more code not important for this issue....

有什么想法吗？正如我所说，付款已经完成，但IPN被发送无效。

Answer 1

我知道这已经过时但可能对其他人有所帮助，我认为你需要发布数据进行验证。

根据Paypal IPN Docs：

//After receiving an IPN message from PayPal, 
//you must respond to PayPal with a POST message 
//that begins with "cmd=_notify-validate".
//Append to your message a duplicate of the 
//notification received (the same IPN fields 
//and values in the exact order you received them)

...
URL u = new URL(url);
HttpURLConnection uc = (HttpURLConnection) u.openConnection();
uc.setRequestMethod("POST");
...

Answer 2

要从PayPal接收IPN消息数据，您的监听器必须遵循此请求 - 响应流程：

1.您的听众会收听PayPal随每个事件发送的HTTPS POST IPN消息。

2.收到PayPal的IPN消息后，您的侦听器会向PayPal返回一个空的HTTP 200响应。否则，PayPal会重新发送IPN消息。

3.您的听众使用HTTPS POST将完整的消息发送回PayPal。

使用cmd = _notify-validate变量作为返回消息的前缀，但不要更改消息字段，字段顺序或原始消息中的字符编码。

将回复消息发回PayPal：

https://ipnpb.sandbox.paypal.com/cgi-bin/webscr（适用于Sandbox IPN）
https：/ipnpb.paypal.com/cgi-bin/webscr（适用于实时IPN）

了解更多信息，请参阅： https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNImplementation/#specs

PayPal IPN在实时和沙盒上的VERIFIED上返回INVALID

2 个答案: