即使我將PayPal示例代碼放在單詞上，貝寶IPN始終返回INVALID？

Question

我的IPN腳本與PayPal示例代碼完全相同： http : //www.example.com/cart/ipn2.php （唯一不同的是，由於服務器環境缺少cacert.pem，我將其添加到cURL中）

<?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);
    }
}

然后，我在這里進行測試： https : //developer.paypal.com/developer/ipnSimulator/

• IPN處理程序網址： http ： //www.example.com/cart/ipn2.php
• 交易類型：購物車結帳

單擊“發送IPN”。

IPN已發送，握手已驗證。

現在，我在與ipn2.php相同的目錄中檢查ipn.log：

[2016-05-29 03:33 UTC] HTTP request of validation request:POST /cgi-bin/webscr HTTP/1.1
Host: www.sandbox.paypal.com
Accept: */*
Connection: Close
Content-Length: 956
Content-Type: application/x-www-form-urlencoded

 for IPN payload: cmd=_notify-validate&payment_type=instant&payment_date=Sun+May+29+2016+09%3A47%3A44+GMT+0800+%28%25u4E2D%25u56FD%25u6807%25u51C6%25u65F6%25u95F4%29&payment_status=Completed&payer_status=verified&first_name=John&last_name=Smith&payer_email=buyer%40paypalsandbox.com&payer_id=TESTBUYERID01&address_name=John+Smith&address_country=United+States&address_country_code=US&address_zip=95131&address_state=CA&address_city=San+Jose&address_street=123+any+street&business=seller%40paypalsandbox.com&receiver_email=seller%40paypalsandbox.com&receiver_id=seller%40paypalsandbox.com&residence_country=US&item_name1=something&item_number1=AK-1234&quantity=1&shipping=3.04&tax=2.02&mc_currency=USD&mc_fee=0.44&mc_gross=12.34&mc_gross_1=12.34&mc_handling=2.06&mc_handling1=1.67&mc_shipping=3.02&mc_shipping1=1.02&txn_type=cart&txn_id=899327589&notify_version=2.4&custom=xyz123&invoice=abc1234&test_ipn=1&verify_sign=Ax7s3TqIWw66TCwHqtv5jrDudIkqArp9Q5MbSvZN7Hmp0hVcLJIPMGtn
[2016-05-29 03:33 UTC] HTTP response of validation request: HTTP/1.1 200 OK
Date: Sun, 29 May 2016 03:33:52 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Set-Cookie: c9MWDuvPtT9GIMyPc3jwol1VSlO=275N2N7S363a15EPCeqtgTf8h6q9dGxoqH7G2qLXSZ_CsWkTd-fn7MPTwWkNErzsHwZmTFSzM6aG-Uidv3uJDu-qATD4hP8S724yYqEFXgNSfr1n7rBUKf81IYFx1nwn3saS7puTcmRSTc1HUvXwTOY0xLie6LpPJXhg8mX92feeUkUo1_4Ndye5D67XLpfjTbHsby32vssICqRf-4XUqw9Vqz6OgWMWjYq8vyEAy4S7ojpFQxs2Bb61hY4Plum1LhSscdb_xXeKFqRjc89QU3w2S51usLzma39SM1WsFCayybOyXuYJcUyXMdCg0--tyDxO9Ru3eAjQixTZPCN9Y9TbKd0HIxBqtqxmdRGFtd0GTzFj__zc8sjO4cliOJCRI30YLCfUbMqf4G8bgDymdR7gcqIf1CNWcvMGwW; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: cookie_check=yes; expires=Wed, 27-May-2026 03:33:53 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navcmd=_notify-validate; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navlns=0.0; expires=Tue, 29-May-2018 03:33:53 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: Apache=10.72.108.11.1464492832868615; path=/; expires=Tue, 22-May-46 03:33:52 GMT
Vary: Accept-Encoding,User-Agent
Connection: close
HTTP_X_PP_AZ_LOCATOR: sandbox.slc
Paypal-Debug-Id: ef5f7fe7cf2cc
Set-Cookie: X-PP-SILOVER=name%3DSANDBOX3.WEB.1%26silo_version%3D1880%26app%3Dappdispatcher%26TIME%3D543378007%26HTTP_X_PP_AZ_LOCATOR%3Dsandbox.slc; Expires=Sun, 29 May 2016 04:03:53 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: X-PP-SILOVER=; Expires=Thu, 01 Jan 1970 00:00:01 GMT
Strict-Transport-Security: max-age=14400
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

INVALID
[2016-05-29 03:33 UTC] Invalid IPN: cmd=_notify-validate&payment_type=instant&payment_date=Sun+May+29+2016+09%3A47%3A44+GMT+0800+%28%25u4E2D%25u56FD%25u6807%25u51C6%25u65F6%25u95F4%29&payment_status=Completed&payer_status=verified&first_name=John&last_name=Smith&payer_email=buyer%40paypalsandbox.com&payer_id=TESTBUYERID01&address_name=John+Smith&address_country=United+States&address_country_code=US&address_zip=95131&address_state=CA&address_city=San+Jose&address_street=123+any+street&business=seller%40paypalsandbox.com&receiver_email=seller%40paypalsandbox.com&receiver_id=seller%40paypalsandbox.com&residence_country=US&item_name1=something&item_number1=AK-1234&quantity=1&shipping=3.04&tax=2.02&mc_currency=USD&mc_fee=0.44&mc_gross=12.34&mc_gross_1=12.34&mc_handling=2.06&mc_handling1=1.67&mc_shipping=3.02&mc_shipping1=1.02&txn_type=cart&txn_id=899327589&notify_version=2.4&custom=xyz123&invoice=abc1234&test_ipn=1&verify_sign=Ax7s3TqIWw66TCwHqtv5jrDudIkqArp9Q5MbSvZN7Hmp0hVcLJIPMGtn

為什么？ 我從字面上跟隨代碼示例。 為什么它總是無效的？ 數小時來，我一直在抓着我的頭，沒有任何相關的事情發生。 請幫助我任何人！

Answer 1

您可以嘗試創建沙箱帳戶並進行測試付款以檢查IPN腳本。 我的腳本還從IPN模擬器收到IPN數據的“無效”響應，但從沙箱測試付款中收到了對IPN數據的“驗證”。

Answer 2

您可能要在此處查看有關無效響應的IPN故障排除提示

帳戶資料中的字符集配置是導致此問題的最典型原因，如果您正在針對www.sandbox.paypal.com進行測試，則需要更新沙盒賣家帳戶中的語言編碼設置（登錄到www.sandbox .paypal.com ，而不是您的LIVE帳戶。