Paypal IPN 回调在沙盒环境中停止工作

Question

我在使用 Paypal IPN 回调时遇到问题。 Paypal 的 IPN 回调在沙盒环境中停止工作。

在过去的几周里，我一直在测试我客户的网站，它一直运行正常——付款已经完成，回调 IPN 被发送回网站，确认付款，并更新网站的数据库.

我没有更改我的代码中的任何内容，它突然停止工作。付款仍在进行并保存在 paypal 帐户中，但 IPN 总是在重试...它没有完成。

下面是使用中的代码:

<?php

// STEP 1: read POST data

// Reading POSTed data directly from $_POST causes serialization issues with array data in the POST.
// Instead, read raw POST data from the input stream. 
$raw_post_data = file_get_contents('php://input');
$raw_post_array = explode('&', $raw_post_data);
$myPost = array();
foreach ($raw_post_array as $keyval) {
$keyval = explode ('=', $keyval);
if (count($keyval) == 2)
$myPost[$keyval[0]] = urldecode($keyval[1]);
}
// read the IPN message sent from PayPal and prepend 'cmd=_notify-validate'
$req = 'cmd=_notify-validate';
if(function_exists('get_magic_quotes_gpc')) {
$get_magic_quotes_exists = true;
} 
foreach ($myPost as $key => $value) { 
if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1) { 
$value = urlencode(stripslashes($value)); 
} else {
$value = urlencode($value);
}
$req .= "&$key=$value";
}

// STEP 2: POST IPN data back to PayPal to validate

$ch = curl_init('https://www.sandbox.paypal.com/cgi-bin/webscr');
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));

// In wamp-like environments that do not come bundled with root authority certificates,
// please download 'cacert.pem' from [link removed] and set 
// the directory path of the certificate as shown below:
// curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem');
if( !($res = curl_exec($ch)) ) {
// error_log("Got " . curl_error($ch) . " when processing IPN data");
curl_close($ch);
exit;
}
curl_close($ch);

……

?>

将一些输出触发到文本文件，我发现它通过了第一步并在第二步停止，之前

if( !($res = curl_exec($ch)) ) {

我已经向 PayPal 提交了三个帮助请求，但仍然没有得到他们的答复。

Answer 1

cURL 请求启动一个 HTTP POST 返回到 PayPal 以验证 IPN 消息。如果它在此步骤停止，则表示您确实收到了来自 PayPal 的 IPN POST，但您在连接回 PayPal 时遇到了问题。

//error_log("Got ". curl_error($ch) . "when processing IPN data"); 包含什么？

为了解决这个问题，请测试从您的服务器到以下地址的 HTTPS 连接:

• > https://www.paypal.com/cgi-bin/webscr?cmd=_notify-validate
• > https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_notify-validate

例如，您可以直接从您的服务器运行 cURL(假设您有 SSH 访问权限)；

curl -v https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_notify-validate

这应该返回类似于以下内容的内容:

$ curl -v https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_notify-validate
* About to connect() to www.sandbox.paypal.com port 443 (#0)
*   Trying 173.0.82.77...
* connected
* Connected to www.sandbox.paypal.com (173.0.82.77) port 443 (#0)
* successfully set certificate verify locations:
*   CAfile: /usr/ssl/certs/ca-bundle.crt
  CApath: none
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using AES256-SHA
* Server certificate:
*        subject: 1.3.6.1.4.1.311.60.2.1.3=US; 1.3.6.1.4.1.311.60.2.1.2=Delaware; businessCategory=Private Organization; serialNumber=3014267; C=US; postalCode=95131-2021; ST=California; L=San Jose; street=2211 N 1st St; O=PayPal, Inc.; OU=PayPal Production; CN=www.sandbox.paypal.com
*        start date: 2011-09-01 00:00:00 GMT
*        expire date: 2013-09-30 23:59:59 GMT
*        common name: www.sandbox.paypal.com (matched)
*        issuer: C=US; O=VeriSign, Inc.; OU=VeriSign Trust Network; OU=Terms of use at https://www.verisign.com/rpa (c)06; CN=VeriSign Class 3 Extended Validation SSL CA
*        SSL certificate verify ok.
> GET /cgi-bin/webscr?cmd=_notify-validate HTTP/1.1
> User-Agent: curl/7.28.1
> Host: www.sandbox.paypal.com
> Accept: */*
>
* HTTP 1.1 or later with persistent connection, pipelining supported
< HTTP/1.1 200 OK
< Date: Wed, 14 Aug 2013 20:15:53 GMT
< Server: Apache
< X-Frame-Options: SAMEORIGIN
< Set-Cookie: xxxxx    
< X-Cnection: close
< Set-Cookie: xxxx domain=.paypal.com; path=/; Secure; HttpOnly
< Set-Cookie: Apache=10.72.128.11.1376511353229960; path=/; expires=Fri, 07-Aug-43 20:15:53 GMT
< Vary: Accept-Encoding
< Strict-Transport-Security: max-age=14400
< Transfer-Encoding: chunked
< Content-Type: text/html; charset=UTF-8
<
* Connection #0 to host www.sandbox.paypal.com left intact
**INVALID* Closing connection #0**
* SSLv3, TLS alert, Client hello (1):

如果您收到超时或 SSL 握手错误，则需要单独调查。