无法在 Codeigniter 中接收 PayPal IPN 响应
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【中文标题】无法在 Codeigniter 中接收 PayPal IPN 响应【英文标题】:Unable to Receive PayPal IPN Response in Code Igniter 【发布时间】:2019-02-27 21:16:27 【问题描述】:我已经在这工作了 3 天了,但仍然无法正常工作。
我想要做的是从 IPN 侦听器获取 PayPal 响应,以便我可以相应地修改我的数据库,但无论我做什么,它都不起作用。我已经在我的 PayPal Sandbox 帐户中完成了以下操作:
启用自动返回
设置自动返回 URL('paypal/success')
启用支付数据传输 (PDT) 启用 IPN 消息接收 设置 IPN URL ('paypal/ipn')重定向到自动返回 URL 工作正常,我在成功页面中收到付款数据,但 IPN 不会因为我以外的原因处理。快速查看我的 PayPal 个人资料中的 IPN 历史记录显示正在发送消息,但我没有收到它们。
这是我当前的 IPN 监听器:Paypal/ipn
public function ipn()
//Build the data to post back to Paypal
$postback = 'cmd=_notify-validate';
// go through each of the posted vars and add them to the postback variable
foreach ($_POST as $key => $value)
$value = urlencode(stripslashes($value));
$postback .= "&$key=$value";
// build the header string to post back to PayPal system to validate
$header = "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Host: www.sandbox.paypal.com\r\n";//or www.sandbox.paypal.com
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($postback) . "\r\n\r\n";
// Send to paypal or the sandbox depending on whether you're live or developing
// comment out one of the following lines
$fp = fsockopen ('www.sandbox.paypal.com', 443, $errno, $errstr, 30);//open the connection
//$fp = fsockopen ('www.paypal.com', 80, $errno, $errstr, 30);
// or use port 443 for an SSL connection
//$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);
if ( ! $fp )
// HTTP ERROR Failed to connect
$message = 'HTTP ERROR Failed to connect!';
$this->email_me($message);
else // if we've connected OK
fputs ($fp, $header . $postback); //post the data back
while ( ! feof($fp) )
$response = fgets ($fp, 1024);
if (strcmp (trim($response), "VERIFIED") == 0) //It's verified
//read the payment details and the account holder
$payment_status = $_POST['payment_status'];
$receiver_email = urldecode($_POST['receiver_email']);
// further checks
if( ($payment_status == 'Completed') && ($receiver_email == $this->business_email) )
$message = 'IPN verified successfully!';
$this->email_me($message);
// Insert the transaction data in the database
$this->product_model->insert_transaction_details($_POST);
else
$message = 'Payment could not be verified!';
$this->email_me($message);
else
$message = 'IPN invalid!';
$this->email_me($message);
有人能指出我正确的方向吗? 另外,我是否可以在 chrome 调试器或我的 PayPal Sandbox 仪表板中检查 IPN 响应(“已验证”或“无效”)?我可以在我的仪表板中看到交货状态,但它没有在任何地方显示“已验证”或“无效”。
【问题讨论】:
您的 IPN 端点是否可以从 Internet 访问?如果它在本地主机上,PayPal 将无法连接到它。 它在实时服务器上。 是否有防火墙?见paypal.com/us/smarthelp/article/… 我不明白你的意思@Mark_1 如果您的服务器位于防火墙后面,您需要添加规则以允许 PayPal 的 IPN 进程连接到您的服务器。如果每个人都可以访问您的服务器,则不需要这样做。 【参考方案1】:我找到了解决方案!我在一个控制器中编写了 IPN 处理程序,该控制器允许访问以管理员身份登录的用户。显然,IPN 方法拒绝访问 PayPal 来验证交易。我想通了这一点,并在不同的控制器中编写了 IPN 方法,一切都运行良好。
我还将我的 IPN 处理程序更改为此代码(尽管原来的可能仍然有效......我没有尝试过):
class Paypal_ipn extends MY_Controller
public function __construct()
parent::__construct();
$this->load->model('product_model');
$this->sandbox = $this->config->item('sandbox');
$this->paypal_host = $this->config->item('paypal_host');
$this->paypal_url = $this->config->item('paypal_url');
$this->business_email = $this->config->item('business');
public function ipn()
// STEP 1: Read POST data
// reading posted data from 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";
// STEP 2: Post IPN data back to paypal to validate
$ch = curl_init($this->paypal_url);
$headers = array(
'POST /cgi-bin/webscr HTTP/1.1',
'Host: ' . $this->paypal_host,
'Content-Type: application/x-www-form-urlencoded; charset=utf-8',
'Content-Length: ' . strlen($req),
'User-Agent: PayPal-IPN-VerificationScript',
'Connection: Close'
);
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);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
if( !($res = curl_exec($ch)) )
curl_close($ch);
exit;
curl_close($ch);
// STEP 3: Inspect IPN validation result and act accordingly
if (strcmp ($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 Primary PayPal email
// check that payment_amount/payment_currency are correct
// process payment
// 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'];
$receiver_email = urldecode($_POST['receiver_email']);
$payer_email = $_POST['payer_email'];
$school_id = $_POST['custom'];
// further checks
if($payment_status == 'Completed')
$message = 'IPN verified successfully!';
$this->email_developer($message);
// Insert the transaction data in the database
$this->product_model->insert_transaction_details($_POST);
else
$message = 'Payment could not be verified!';
$this->email_developer($message);
else if (strcmp ($res, "INVALID") == 0)
// log for manual investigation
$message = 'IPN Invalid!';
$this->email_developer($message);
对于那些可能遇到我的困境的人,请确保您还执行以下操作:
-
如果您启用了跨站请求伪造 (CSRF),请确保将 IPN 侦听器/处理程序列入白名单,否则 IPN 消息将失败(PayPal IPN 历史记录中的错误 403)。
为确保您的 IPN 侦听器运行良好,请将其作为 URL 运行并查看响应。如果有任何错误,它将无法正常工作。如需回复,请尝试回显“已验证”或“无效”。
使用PayPal IPN Simulator 测试进程。包括一个在成功后将信息提交到数据库的过程。
我希望它对某人有所帮助。
【讨论】:
【参考方案2】:使用 php://input 代替 $_POST
reson 在这里详细描述:PHP "php://input" vs $_POST
paypal 也有实现 IPN 监听器及其在 php 中的文档 Paypal tutorial
【讨论】:
【参考方案3】:没有IPN的原因之一是连接paypal时出现问题,解决这个问题你要做的就是改变端口。
所以对于这段代码来自
$fp = fsockopen($url_parsed['host'],'80',$err_num,$err_str,30);
到
$fp = fsockopen($url_parsed['host'],'443',$err_num,$err_str,30);
您也可以参考here
【讨论】:
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