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PayPal IPN 在正式环境下返回 INVALID，在沙盒环境下返回 VERIFIED

javapaypalpaypal-sandboxpaypal-ipn
4
我一直在尝试在我们公司网站上实现PayPal IPN系统。 当我在IPN沙盒工具中测试我的脚本时，它经过验证并且一切顺利，但是当我将其移至实际环境时，IPN返回为INVALID，但是付款已经成功完成。 当我在我的帐户中检查IPN历史记录时，我可以看到HTTP响应200的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¬ify_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

我的IPNHandler是一个Java Servlet。 doPost操作如下：

 @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，付款已完成，但IPN被发送为INVALID。
关闭沙盒：boolean isSandbox = "false"。似乎是沙盒=已验证，实时=无效的主要原因。有时候简单的事情也会让我们犯错！ - Patanjali
2个回答
1
我知道这个问题有点老，但它可能会对其他人有所帮助，我认为您需要通过POST方式提交数据进行验证。
根据Paypal IPN文档：
//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");
...
0

为了从PayPal接收IPN消息数据，您的监听器必须遵循以下请求-响应流程：

1.您的监听器侦听PayPal每个事件发送的HTTPS POST IPN消息。

2.在从PayPal收到IPN消息后，您的监听器向PayPal返回一个空的HTTP 200响应。否则，PayPal将重新发送IPN消息。

3.您的监听器使用HTTPS POST将完整的消息发送回PayPal。

在返回的消息中添加cmd=_notify-validate变量前缀，但不要更改消息字段、字段顺序或原始消息的字符编码。

向PayPal发送响应消息：

更多信息请参见：https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNImplementation/#specs

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