Paypal(沙盒/模拟器)IPN返回INVALID，尽管支付成功

很抱歉不得不再次问这个问题，但我尝试的选项都不适合我。

下面是我的监听器代码：

注意，我已经对ipn文件(来自贝宝github)做了以下操作——如果没有这些问题，我在日志文件中得到了SSL错误。

1. curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);//1 - changed
2. curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);//2 - changed
3. curl_setopt($ch, CURLOPT_SSLVERSION, 6); // - added
4. added the CURL headers after default CURL options

SendBasicEmail是一个只向我发送POST数据的电子邮件功能。

我还完成了Paypal故障排除指南，URL是正确的，日志文件中的两个名称/值URL段落(见下文)也完全相同。。

这是在一个SHared hostgator帐户上-我没有得到任何php错误，我将沙箱的字符集设置为utf-8.

我得到了IPN模拟器发送的正确值，但IPN一直在说INVALID，没有任何押韵或理由。。

我的ipn.log文件有以下内容：

[2016-05-27 08:13 America/Chicago] HTTP request of validation request:POST /cgi-bin/webscr HTTP/1.1
Accept: */*
Content-Type:application/x-www-form-urlencoded
Host: www.sandbox.paypal.com
Content-Length: 934
Connection: close
for IPN payload: cmd=_notify-validate&payment_type=instant&payment_date=Fri+May+27+2016+15%3A08%3A35+GMT+0200+%28South+Africa+Standard+Time%29&payment_status=Completed&address_status=confirmed&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&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=429875949&notify_version=2.1&custom=xyz123&invoice=abc1234&test_ipn=1&verify_sign=AoVeQZD-CT8vDxSGDZcG6pciC5eEAcQRkIs5dl-N0cnLYMm89A4qOJ7B
[2016-05-27 08:13 America/Chicago] HTTP response of validation request: HTTP/1.1 200 OK
Date: Fri, 27 May 2016 13:13:01 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Set-Cookie: c9MWDuvPtT9GIMyPc3jwol1VSlO=0g7tVdxHaY6Zg55enbaKcWevON6OjuZOp-9GlUHpUmFZPDdL2ctJ_ipwOgPQtZgsJB37HUmD6-vfYr2TmKpcq6CrX81SyThtTxD_VPiGzhTpF0velEglL5BnltyBzDVI8wzJOQgyWxio60HFFGxVd67xy6e088O7CBWNS9i64IuHjc2jAux4dD7NU1zU7kvgsDLCFjW08ibZ1gQzEU3EafhMQpg7q_q8ntofjs1SXs_a-V1GiVueQQDN5eQALgvk_T2iwg51Gv630VvftWPJSnr3N2hqsW6gshwJY3ctvkR4bs9k_kS8rWYBkTxE1zqwwmSA9MdS_izc35-mwEzD8bKp3Xlyoc1FREU4wo-fnCzun6YPRZKaCDBzvY6O9smT9-k5b4nt6pnOcCikDTbZ4r0DAJu-XaJUK9mGnG; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: cookie_check=yes; expires=Mon, 25-May-2026 13:13:01 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navcmd=_notify-validate; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navlns=0.0; expires=Sun, 27-May-2018 13:13:01 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: Apache=10.72.108.11.1464354781199222; path=/; expires=Sun, 20-May-46 13:13:01 GMT
Vary: Accept-Encoding,User-Agent
Connection: close
HTTP_X_PP_AZ_LOCATOR: sandbox.slc
Paypal-Debug-Id: 96473e862c576
Set-Cookie: X-PP-SILOVER=name%3DSANDBOX3.WEB.1%26silo_version%3D1880%26app%3Dappdispatcher%26TIME%3D3712436311%26HTTP_X_PP_AZ_LOCATOR%3Dsandbox.slc; Expires=Fri, 27 May 2016 13:43:01 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
[2016-05-27 08:13 America/Chicago] Invalid IPN: cmd=_notify-validate&payment_type=instant&payment_date=Fri+May+27+2016+15%3A08%3A35+GMT+0200+%28South+Africa+Standard+Time%29&payment_status=Completed&address_status=confirmed&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&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=429875949&notify_version=2.1&custom=xyz123&invoice=abc1234&test_ipn=1&verify_sign=AoVeQZD-CT8vDxSGDZcG6pciC5eEAcQRkIs5dl-N0cnLYMm89A4qOJ7B

下面是我的ipn侦听器文件：

//Begin IPN FILE
// 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, 0);//1
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);//2
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_SSLVERSION, 6);   

$headers= array('POST /cgi-bin/webscr HTTP/1.0',
'Content-Type:application/x-www-form-urlencoded',
'Host: www.sandbox.paypal.com',
"Content-Length: " . strlen($req),
'Connection: close'
);
curl_setopt($ch,CURLOPT_HTTPHEADER, $headers);

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);
}
SendBasicEmail("fran@strike1.co.za","res",strcmp (var_dump($raw_post_array), "VERIFIED"));
// Inspect IPN validation result and act accordingly
// Split response headers and payload, a better way for strcmp
$tokens = explode("rnrn", trim($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 = $_POST['payer_email'];
SendBasicEmail("fran@strike1.co.za", "IPN DATA - Pass", "$ipnrows");
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
SendBasicEmail("fran@strike1.co.za", "IPN DATA - Fail", "$ipnrows");

if(DEBUG == true) {
error_log(date('[Y-m-d H:i e] '). "Invalid IPN: $req" . PHP_EOL, 3, LOG_FILE);
}
}
//END IPN FILE

终于找到问题了！！

在连续几天浏览了大量其他人的帖子后，我发现许多人都在使用preg_replace从贝宝帖子变量值中删除url编码的字符(%)。。

假设你已经仔细检查了u没有php语法错误，并且没有得到运行ipn模拟器时创建的php错误.log文件-查看ipn.log文件内部(或通过电子邮件将ipn监听器的$req输出发送给自己)。。。

mail("*email@what.where*","Ipn Res", curl_getinfo($ch, CURLINFO_HEADER_OUT) .$res );

查找以%-开头的任何字符

看看我上面的例子：

payment_date=Fri+May+27+2016+15**%3A**08**%3**A35+GMT+0200+

默认的IPN模拟器添加了大量垃圾时区垃圾，导致各种%(url编码)值无法通过我的IPN。

(注意，我已经在帐户设置中将我的编码更改为utf-8)

我用一个普通的php日期替换了默认的IPN日期字段，一切都成功了——终于！

所以，确保你在帖子url中没有得到任何%值，一切都应该很好！

此外，我必须更改这些选项才能通过：

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);//1 - changed
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);//2 - changed
curl_setopt($ch, CURLOPT_SSLVERSION, 6); // - added

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