Paypal IPN für einige Zahlungen andernfalls

Ich habe den folgenden Code:Paypal IPN für einige Zahlungen andernfalls

<?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); 
    } 
} 
?>

Dieser Code für mehr als 2 Jahre ist ohne Probleme funktioniert, aber vor ein paar Monaten einige Zahlungen aus irgendeinem Grund und Paypal scheitern gestartet begann zu senden IPN gescheitert Warnung E-Mails und so ...

Ich versuche, das Problem ohne Glück zu finden. Alle Testbenachrichtigungen von Paypals IPN Simulator funktionieren gut, aber sobald jemand eine legale Zahlung macht, ist es nicht registriert. In einigen seltenen Fällen wird die Zahlung registriert.

Könnte mir bitte jemand in die richtige Richtung zeigen?

Quelle

2017-02-14 user3049858