PayPal IPN 甚至从 PayPal Simulator 都失败了

Question

我尝试使用 PayPal 的沙盒 IPN 模拟器发送一些测试付款，但 IPN 日志仍然显示 IPN 失败。我尝试进入Profile > Selling Tools > Language Encoding > Changed to UTF-8 仍然没有用。 IPN 日志说

[09/11/2014 10:02 PM] - FAIL: IPN Validation Failed.
IPN POST Vars from Paypal:
residence_country=US, invoice=abc1234, address_city=San Jose, first_name=John, payer_id=TESTBUYERID01, shipping=3.04, mc_fee=0.44, txn_id=222972945, receiver_email=seller@paypalsandbox.com, quantity=1, custom=xyz123, payment_date=04:59:06 11 Sep 2014 PDT, address_country_code=US, address_zip=95131, tax=2.02, item_name=something, address_name=John Smith, last_name=Smith, receiver_id=seller@paypalsandbox.com, item_number=AK-1234, verify_sign=AFcWxV21C7fd0v3bYYYRCpSSRl31AMzH.1OGLzhiRtwR90w31D5sjl55, address_country=United States, payment_status=Completed, address_status=confirmed, business=seller@paypalsandbox.com, payer_email=buyer@paypalsandbox.com, notify_version=2.1, txn_type=web_accept, test_ipn=1, payer_status=verified, mc_currency=USD, mc_gross=12.34, address_state=CA, mc_gross1=9.34, payment_type=instant, address_street=123, any street, 
IPN Response from Paypal Server:
 HTTP/1.0 302 Found
Location: https://www.sandbox.paypal.com
Server: BigIP
Connection: close
Content-Length: 0

根据 PayPal 的文档，我去过https://gist.github.com/xcommerce-gists/3440401/download# PayPal 的文档中提到了这个链接。并尝试使用相同的代码，并在 PayPal IPN 设置和 IPN 模拟器的通知 URL 中设置了 URL。但仍然无法正常工作。不幸的是，上面链接中的代码没有向日志文件添加任何记录。

我还有另一个代码在日志文件中记录但记录为失败。

代码：

<?php
ob_start();
if($_SESSION == null) {
  session_start();
}
error_reporting(0);
require_once('paypal.class.php');  // include the class file
$p = new paypal_class;             // initiate an instance of the class
$p->paypal_url = 'https://www.sandbox.paypal.com/cgi-bin/webscr';   // testing paypal url
$this_script = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];
if (empty($_GET['action'])) $_GET['action'] = 'process';  

switch ($_GET['action']) {

   case 'ipn': 

      if ($p->validate_ipn()) {

     $subject = 'Instant Payment Notification - Recieved Payment';
     $p->send_report ( $subject );
      }
      else {
     $subject = 'Instant Payment Notification - Payment Fail';
     $p->send_report ( $subject );
      }
      break;
 }     
?>

Answer 1

你忘了添加一个验证器，这就是我的样子：

对不起代码：p

// CONFIG: Enable debug mode. This means we'll log requests into 'ipn.log' in the same directory.
// Especially useful if you encounter network errors or other intermittent problems with IPN (validation).
// Set this to 0 once you go live or don't require logging.
define("DEBUG", 1);

// Set to 0 once you're ready to go live
define("USE_SANDBOX", 1);


define("LOG_FILE", "ipn.log");


// Read POST data
// reading posted data directly from $_POST causes serialization
// issues with array data in POST. Reading raw POST data from input stream instead.
$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 post from PayPal system and add 'cmd'
$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";
}

// Post IPN data back to PayPal to validate the IPN data is genuine
// Without this step anyone can fake IPN data
if(USE_SANDBOX == true) {
    $paypal_url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
} else {
    $paypal_url = "https://www.paypal.com/cgi-bin/webscr";
}

$ch = curl_init($paypal_url);
if ($ch == FALSE) {
    return FALSE;
}

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);

if(DEBUG == true) {
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLINFO_HEADER_OUT, 1);
}

// CONFIG: Optional proxy configuration
//curl_setopt($ch, CURLOPT_PROXY, $proxy);
//curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);

// Set TCP timeout to 30 seconds
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));

// CONFIG: Please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path
// of the certificate as shown below. Ensure the file is readable by the webserver.
// This is mandatory for some environments.

//$cert = __DIR__ . "./cacert.pem";
//curl_setopt($ch, CURLOPT_CAINFO, $cert);

$res = curl_exec($ch);
if (curl_errno($ch) != 0) // cURL error
    {
    if(DEBUG == true) { 
        error_log(date('[Y-m-d H:i e] '). "Can't connect to PayPal to validate IPN message: " . curl_error($ch) . PHP_EOL, 3, LOG_FILE);
    }
    curl_close($ch);
    exit;

} else {
        // Log the entire HTTP response if debug is switched on.
        if(DEBUG == true) {
            error_log(date('[Y-m-d H:i e] '). "HTTP request of validation request:". curl_getinfo($ch, CURLINFO_HEADER_OUT) ." for IPN payload: $req" . PHP_EOL, 3, LOG_FILE);
            error_log(date('[Y-m-d H:i e] '). "HTTP response of validation request: $res" . PHP_EOL, 3, LOG_FILE);

            // Split response headers and payload
            list($headers, $res) = explode("\r\n\r\n", $res, 2);
        }
        curl_close($ch);
}

// Inspect IPN validation result and act accordingly

if (strcmp ($res, "VERIFIED") == 0) {
    //Your code here
    // check whether the payment_status is Completed
    // check that txn_id has not been previously processed
    // check that receiver_email is your PayPal email
    // check that payment_amount/payment_currency are correct
    // process payment and mark item as paid.

    // assign posted variables to local variables
    if(DEBUG == true) {
        error_log(date('[Y-m-d H:i e] '). "Verified IPN: $req ". PHP_EOL, 3, LOG_FILE);
    }
} else if (strcmp ($res, "INVALID") == 0) {
    // log for manual investigation
    // Add business logic here which deals with invalid IPN messages
    if(DEBUG == true) {
        error_log(date('[Y-m-d H:i e] '). "Invalid IPN: $req" . PHP_EOL, 3, LOG_FILE);
    }
}