Alert Handshake failure paypal使用fsockopen進行IPN集成

Question

將PayPal IPN集成到我的網站時出現問題。 警告是

"Warning: fsockopen() [function.fsockopen]: SSL operation failed with code 1

OpenSSL的錯誤消息：

error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure in /home/..." on this line: $fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30);

我使用的fsockopen，因爲我只能找樣品幾個月前工作。但是當我2天前嘗試時，它顯示了錯誤。這裏是我的代碼：

<?php 

$return_url = "http://www.domain.com.au/member/payment.php"; 
$cancel_url = "http://www.domain.com.au/member/request.php"; 
$notify_url = "http://www.domain.com.au/member/payment.php"; 

// Check if paypal request or response 
if (!isset($_POST["txn_id"]) && !isset($_POST["txn_type"])){    
    $querystring = ''; 
    $paypalQueryString = "?business=".urlencode('my-facilitator@yahoo.com')."&"; 

    $paypalQueryString .= "item_name=".urlencode('Item Name')."&"; 
    $paypalQueryString .= "amount=".urlencode($totalPrice)."&"; 
    $paypalQueryString .= "cmd=_xclick&no_note=1&lc=AU&currency_code=AUD&bn=PP-BuyNowBF%3Abtn_buynow_LG.gif%3ANonHostedGuest&"; 
    $paypalQueryString .= "first_name=".urlencode($niceName)."&"; 
    $paypalQueryString .= "last_name=&"; 
    $paypalQueryString .= "payer_email=".urlencode($payerEmail)."&"; 
    $paypalQueryString .= "item_number=".urlencode($accountID)."&"; 
    $paypalQueryString .= "submit=Submit+Payment&"; 
    $paypalQueryString .= "return=".urlencode(stripslashes($return_url))."&"; 
    $paypalQueryString .= "cancel_return=".urlencode(stripslashes($cancel_url))."&"; 
    $paypalQueryString .= "notify_url=".urlencode($notify_url); 

    // Redirect to paypal IPN 
    header('location:https://www.sandbox.paypal.com/cgi-bin/webscr'.$paypalQueryString); 
    //header('location:https://www.paypal.com/cgi-bin/webscr'.$paypalQueryString); 
    exit(); 
} 
else { 
    //Response from Paypal 
    //echo "<pre>".var_dump($_POST)."</pre>"; 

    // read the post from PayPal system and add 'cmd' 
    $req = 'cmd=_notify-validate'; 
    foreach ($_POST as $key => $value) { 
     $value = urlencode(stripslashes($value)); 
     $value = preg_replace('/(.*[^%^0^D])(%0A)(.*)/i','${1}%0D%0A${3}',$value);// IPN fix 
     $req .= "&$key=$value"; 
    } 

    // assign posted variables to local variables 
    $data['item_name']  = $_POST['item_name']; 
    $data['item_number']  = $_POST['item_number']; 
    $data['payment_status']  = $_POST['payment_status']; 
    $data['payment_amount']  = $_POST['mc_gross']; 
    $data['payment_currency'] = $_POST['mc_currency']; 
    $data['txn_id']   = $_POST['txn_id']; 
    $data['receiver_email']  = $_POST['receiver_email']; 
    $data['payer_email']  = $_POST['payer_email']; 
    $data['custom']   = $_POST['custom']; 

    $header = "POST /cgi-bin/webscr HTTP/1.0\r\n"; 
    $header .= "Content-Type: application/x-www-form-urlencoded\r\n"; 
    $header .= "Content-Length: " . strlen($req) . "\r\n\r\n"; 

    $fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30); 
    //$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30); 

    if (!$fp) { 
     echo "HTTP Error"; 
    } 
    else { 
     fputs($fp, $header . $req); 
     $res = stream_get_contents($fp, 2048); 
     if (strpos(trim($res), "VERIFIED") !== false) { 
       // update transaction --> paid status 
     } 
     else if (strpos (trim($res), "INVALID") !== false) { 
     } 
     else{ 
     } 
     fclose ($fp); 
    } 
} 
?> 

希望任何人都可以幫助我。謝謝

Answer 1

我處於類似的情況，但我使用cURL而不是fsockopen。 PayPal剛剛開始要求通過TLS 1.2（和HTTP 1.1）完成與沙盒的所有連接。

https://devblog.paypal.com/upcoming-security-changes-notice/

也許嘗試改變這一行

$fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30);

這樣做呢？

$fp = fsockopen ('tls://www.sandbox.paypal.com', 443, $errno, $errstr, 30);

Answer 2

你必須使用新的CURL方法和溝老的fsockopen方式，這似乎是新的貝寶TLS 1.2活動的一部分。 我測試了tls：// ssl：//並且只是普通的https://www.sandbox.paypal.com/cgi-bin/webscr這些都失敗了，直到我在下面實現了PHP Curl評估。

https://github.com/paypal/ipn-code-samples/blob/master/paypal_ipn.php

<?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); 
// 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: $res" . PHP_EOL, 3, LOG_FILE); 
     } 
     curl_close($ch); 
} 
// Inspect IPN validation result and act accordingly 
// Split response headers and payload, a better way for strcmp 
$tokens = explode("\r\n\r\n", trim($res)); 
$res = trim(end($tokens)); 
if (strcmp ($res, "VERIFIED") == 0) { 
    // check whether the payment_status is Completed 
    // check that txn_id has not been previously processed 
    // check that receiver_email is your PayPal email 
    // check that payment_amount/payment_currency are correct 
    // process payment and mark item as paid. 
    // assign posted variables to local variables 
    //$item_name = $_POST['item_name']; 
    //$item_number = $_POST['item_number']; 
    //$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']; 

    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); 
    } 
} 
?>