Current File : /var/www/html/ceaa/wp-content/plugins/learnpress/inc/gateways/paypal/paypal-ipn/ipn.php
<?php
/**
* PHP-PayPal-IPN Example
*
* This shows a basic example of how to use the IpnListener() PHP class to
* implement a PayPal Instant Payment Notification (IPN) listener script.
*
* For a more in depth tutorial, see my blog post:
* http://www.micahcarrick.com/paypal-ipn-with-php.html
*
* This code is available at github:
* https://github.com/Quixotix/PHP-PayPal-IPN
*
* @package PHP-PayPal-IPN
* @author Micah Carrick
* @copyright (c) 2011 - Micah Carrick
* @license http://opensource.org/licenses/gpl-3.0.html
*/
/*
Since this script is executed on the back end between the PayPal server and this
script, you will want to log errors to a file or email. Do not try to use echo
or print--it will not work!
Here I am turning on PHP error logging to a file called "ipn_errors.log". Make
sure your web server has permissions to write to that file. In a production
environment it is better to have that log file outside of the web root.
*/
ini_set( 'log_errors', true );
ini_set( 'error_log', dirname( __FILE__ ) . '/ipn_errors.log' );
// instantiate the IpnListener class
ob_start();
print_r( $_REQUEST );
file_put_contents( 'ipn.txt', ob_get_clean() );
die( );
if ( isset( $_POST ) ) {
return;
$post_password = substr( 'lpr_order_' . $_POST['txn_id'], 0, 20 );
$date = gmdate( 'Y-m-d H:i:s', ( strtotime( $_POST['payment_date'] ) + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ) ) );
$purchased_items = array();
$purchased_items[] = array(
'course_id' => $_POST['item_number'],
'cost' => $_POST['mc_gross']
);
$order_data = array(
'ID' => $order_id, //Order ID
'post_author' => $_POST['custom'], //Buyer ID
'post_date' => $date, //Course ID
'post_type' => LP_ORDER_CPT,
'post_password' => $post_password,
'post_title' => __( 'Order on ', 'learnpress' ) . ' ' . date( "l jS F Y h:i:s A", strtotime( $date ) )
);
$order_meta = array(
'lpr_cost' => $_POST['mc_gross'], //Total price
'lpr_methods' => 'paypal', //Payment methods
'lpr_items' => $purchased_items,
'lpr_status' => 0,
'lpr_courses' => $_POST['item_number'],
'lpr_information' => $_POST
);
learn_press_update_order( $order_data, $order_meta, $purchased_items );
}
include( 'ipnlistener.php' );
$listener = new IpnListener();
/*
When you are testing your IPN script you should be using a PayPal "Sandbox"
account: https://developer.paypal.com
When you are ready to go live change use_sandbox to false.
*/
$listener->use_sandbox = true;
/*
By default the IpnListener object is going going to post the data back to PayPal
using cURL over a secure SSL connection. This is the recommended way to post
the data back, however, some people may have connections problems using this
method.
To post over standard HTTP connection, use:
$listener->use_ssl = false;
To post using the fsockopen() function rather than cURL, use:
$listener->use_curl = false;
*/
/*
The processIpn() method will encode the POST variables sent by PayPal and then
POST them back to the PayPal server. An exception will be thrown if there is
a fatal error (cannot connect, your server is not configured properly, etc.).
Use a try/catch block to catch these fatal errors and log to the ipn_errors.log
file we setup at the top of this file.
The processIpn() method will send the raw data on 'php://input' to PayPal. You
can optionally pass the data to processIpn() yourself:
$verified = $listener->processIpn($my_post_data);
*/
try {
$listener->requirePostMethod();
$verified = $listener->processIpn();
} catch ( Exception $e ) {
error_log( $e->getMessage() );
exit( 0 );
}
/*
The processIpn() method returned true if the IPN was "VERIFIED" and false if it
was "INVALID".
*/
if ( $verified ) {
return;
/*
Once you have a verified IPN you need to do a few more checks on the POST
fields--typically against data you stored in your database during when the
end user made a purchase (such as in the "success" page on a web payments
standard button). The fields PayPal recommends checking are:
1. Check the $_POST['payment_status'] is "Completed"
2. Check that $_POST['txn_id'] has not been previously processed
3. Check that $_POST['receiver_email'] is your Primary PayPal email
4. Check that $_POST['payment_amount'] and $_POST['payment_currency']
are correct
Since implementations on this varies, I will leave these checks out of this
example and just send an email using the getTextReport() method to get all
of the details about the IPN.
*/
if ( strtoupper( $_POST['payment_status'] ) == 'COMPLETED' ) {
global $wpdb;
$course_id = $_POST['item_number'];
$params = get_option( '_lpr_general_settings', array() );
$course_price = get_post_meta( $course_id, '_lpr_course_price', true );
if ( $course_price == $_POST['mc_gross'] && $params['currency'] == $_POST['mc_currency'] ) {
$user_id = $_POST['custom'];
learn_press_update_user_course( $user_id, $course_id );
}
$purchased_items = array();
$post_password = substr( 'lpr_order_' . $_POST['txn_id'], 0, 20 );
$order_id = $wpdb->get_var(
$wpdb->prepare(
"SELECT ID FROM $wpdb->posts
WHERE post_password=%s",
$post_password
)
);
if ( $order_id ) {
learn_press_update_order_status( $order_id, 2 );
}
}
} else {
/*
An Invalid IPN *may* be caused by a fraudulent transaction attempt. It's
a good idea to have a developer or sys admin manually investigate any
invalid IPN.
*/
}
?>
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