php - 将 phpmailer_v5.1 use_gmail 与 paypal ipn 响应器相结合

Question

我有两个脚本，想将它们合并成一行。 我用这条评论标记了这一行:'here I need stack-overflow-help'。

第一个脚本: 这是 Paypal ipn 响应者 ( https://www.x.com/developers/PayPal/documentation-tools/code-sample/216623 ):

<?php 
// 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

$ch = curl_init('https://www.paypal.com/cgi-bin/webscr');
curl_setopt($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, array('Connection: Close'));

// In wamp like environments that do not come bundled with root authority certificates,
// please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path 
// of the certificate as shown below.
// curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem');

if( !($res = curl_exec($ch)) ) {
    // error_log("Got " . curl_error($ch) . " when processing IPN data");
    curl_close($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 = $_POST['receiver_email'];
    $payer_email = $_POST['payer_email'];
} 
else if (strcmp ($res, "INVALID") == 0) {
    // log for manual investigation
}
?>

第二个脚本:

这是 phpmailer_v5.1 use_gmail.php:

<?php
// example on using PHPMailer with GMAIL

include("class.phpmailer.php");
include("class.smtp.php"); // note, this is optional - gets called from main class if not already loaded

$mail             = new PHPMailer();
$body             = 'this is the body of the email';

$mail->IsSMTP();
$mail->SMTPAuth   = true;                  // enable SMTP authentication
$mail->SMTPSecure = "ssl";                 // sets the prefix to the servier
$mail->Host       = "smtp.gmail.com";      // sets GMAIL as the SMTP server
$mail->Port       = 465;                   // set the SMTP port

$mail->Username   = "yourname@gmail.com";  // GMAIL username
$mail->Password   = "password";            // GMAIL password

$mail->From       = "replyto@yourdomain.com";
$mail->FromName   = "Webmaster";
$mail->Subject    = "This is the subject";
$mail->AltBody    = "This is the body when user views in plain text format"; //Text Body
$mail->WordWrap   = 50; // set word wrap

$mail->MsgHTML($body);
$mail->AddReplyTo("replyto@yourdomain.com","Webmaster");
$mail->AddAttachment("/path/to/file.zip");             // attachment
$mail->AddAttachment("/path/to/image.jpg", "new.jpg"); // attachment
$mail->AddAddress("username@domain.com","First Last"); //here I need stackoverflow-help
$mail->IsHTML(true); // send as HTML

if(!$mail->Send()) {
    echo "Mailer Error: " . $mail->ErrorInfo;
} else {
    echo "Message has been sent";
}
?>

我在同一个文件夹中有 class.smtp 和 class.phpmailer。use_gmail.php 已经过测试，可以正常工作和发送电子邮件。但只有当我写目标电子邮件时这一行的地址:

$mail->AddAddress("username@domain.com","First Last");

我想发邮件给刚刚付款的客户，如何从Paypal获取目标邮件地址？

Answer 1

在我们的电子商务配置中，我们使用了一个技巧让真实用户的电子邮件(例如，他用来注册到我们的客户数据库的电子邮件)由 IPN 响应者发送。

当用户使用 Paypal 付款时，会向 Paypal 系统发送一个表单，其中包含有关付款金额、url 桥接等信息。这是一个例子:

<form name="autoPayFormSubmit" id="autoPayFormSubmit" method="post" action="https://securepayments.paypal.com/cgi-bin/acquiringweb"> 
    <input type="hidden" name="cmd" value="_hosted-payment" />
    <input type="hidden" name="subtotal" value="#SUBTOTAL#" />
    <input type="hidden" name="shipping" value="#SHIPCOST#" />
    <input type="hidden" name="business" value="#NUMBEROFBUSINESS#" />
    <input type="hidden" name="paymentaction" value="sale" />
    <input type="hidden" name="custom" value=" ## USE ME TO TRICK THE SYSTEM ##" />
    <input type="hidden" name="currency_code" value="EUR" />
    <input type="hidden" name="shopping_url" value="http://yourwebsite.domain/##" />
    <input type="hidden" name="cbt" value="Go back to the shopping" />
    <input type="hidden" name="notify_url" value="http://yourwebsite.domain/##" />
    <input type="hidden" name="cancel_return" value="http://yourwebsite.domain/##" />
    <input type="hidden" name="return" value="http://yourwebsite.domain/##" />
    <input type="submit" value="PAYPAL SAFE PAYMENT" onmouseover="this.style.backgroundColor='#CEE4F2';" onmouseout="this.style.backgroundColor='#EAF2F6';" style="font-weight: bold; font-size: 14px; padding: 10px 5px; border-radius: 10px; background: #EAF2F6 none no-repeat scroll 0 0; box-shadow: 3px 3px 5px #888; cursor:pointer;">
</form>

“技巧”是通过“自定义”输入发送注册到系统中的用户的电子邮件以及其他有用数据。 例如，在我们的电子商务中，我们使用用户电子邮件、订单 ID 和其他“非妥协”值序列化一个数组。序列化后，我们使用自己创建的 crypt 类对其进行编码(或者您可以简单地使用 PHP 的 mcrypt 扩展)。

一旦您获得 IPN 响应，您还将获得

$custom_encrypted_serialized_variables = $_POST['custom'];

因此，您可以将步骤 3 中的 IPN 监听器代码替换为以下代码:

...
...
// 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 = $_POST['receiver_email'];
    $payer_email = $_POST['payer_email'];
    $custom_encrypted_serialized_variables = $_POST['custom'];

    ...
    ...
}

然后使用常用的 unserialize() 和 decrypt 函数对变量进行解密和反序列化。

连同您可以在 paypal 结帐表单中使用“自定义”变量发送的其他有用数据，发送客户的电子邮件，您就完成了!

P.S:我知道这个解决方案不是最优的，也许还有其他解决方案，但我发现这个解决方案快速高效。感谢提示和更正!