貝寶IPN失敗對於一些支付

我得到了下面的代碼：貝寶IPN失敗對於一些支付

<?php 
define('BASEPATH', true); 
require('../../config.php'); 

// 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); 
define('USE_SANDBOX', 0); 
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($ch, CURLOPT_CONNECTTIMEOUT, 60); 
curl_setopt($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 
      $tokens = explode("\r\n\r\n", $res); // Avoid passing 2 as the last argument, so the remaining token can be picked up 
      $res = trim(end($tokens)); // Set $res to be the last token in the response 
     } 
     curl_close($ch); 
} 

// Inspect IPN validation result and act accordingly 

if (strcmp ($res, "VERIFIED") == 0) { 
    // process payment and mark item as paid. 
    $payment_status = $_POST['payment_status']; 
    $payment_amount = $_POST['mc_gross']; 
    $payment_currency = $_POST['mc_currency']; 
    $txn_id = $_POST['txn_id']; 
    $receiver_email = $_POST['receiver_email']; 
    $payer_email = $_POST['payer_email']; 
    $custom = $_POST['custom']; 

    $get_data = explode('|', $custom); 

    if($payment_status == 'Completed'){ 
     // 
     // DO SOMETHING... 
     // 
    } else if (DEBUG == true) { 
     error_log(date('[Y-m-d H:i e] '). "Invalid Payment Status: $payment_status" . PHP_EOL, 3, LOG_FILE); 
    } 

    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) { 
    if(DEBUG == true) { 
     error_log(date('[Y-m-d H:i e] '). "Invalid IPN: $req" . PHP_EOL, 3, LOG_FILE); 
    } 
} else { 
    if(DEBUG == true) { 
     error_log(date('[Y-m-d H:i e] '). "Response log: $res" . PHP_EOL, 3, LOG_FILE); 
    } 
} 
?>

該代碼已經工作2年以上沒有任何問題，但在幾個月前一些支付開始失敗不管出於什麼原因和Paypal開始發送IPN失敗警告電子郵件和東西...

我試圖找到沒有任何運氣的問題。所有來自PayPals IPN Simulator的測試通知都可以正常工作，但只要有人進行合法付款，它就沒有註冊。在少數情況下，付款已註冊。

請問有人能指點我正確的方向嗎？

來源

2017-02-14 user3049858