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- <?php
- /*
- * This is a PayPal IPN (Instant Payment Notification) broadcaster
- * Since PayPal does not provide any straightforward way to add
- * multiple IPN listeners we'll have to create a central IPN
- * listener that will broadcast (or filter and dispatch) Instant
- * Payment Notifications to different destinations (IPN listeners)
- *
- * Destination IPN listeners must not panic and recognize IPNs sent
- * by this central broadcast as valid ones in terms of source IP
- * and any other fingerprints. Any IP filtering must add this host,
- * other adjustments made as necessary.
- *
- * IPNs are logged into files for debugging and maintenance purposes
- *
- * this code comes with absolutely no warranty
- * https://codeseekah.com
- */
- ini_set( 'max_execution_time', 0 ); /* Do not abort with timeouts */
- ini_set( 'display_errors', 'Off' ); /* Do not display any errors to anyone */
- $urls = array(); /* The broadcast session queue */
- /* List of IPN listener points */
- $ipns = array(
- 'ogretiyor' => 'http://mydomain.com/myipnlistener.php',
- 'surprizkutu' => 'http://myotherdomain.com/?wc-api=WC_Gateway_Paypal',
- );
- /* Fingerprints */
- /* ... */
- /* Broadcast */
- if ( !sizeof($urls) ) $urls = $ipns; /* No URLs have been matched */
- $urls = array_unique( $urls ); /* Unique, just in case */
- /* Broadcast (excluding IPNs from the list according to filter is possible */
- foreach ( $urls as $url ) broadcast( $url );
- header( 'HTTP/1.1 200 OK', true, 200 );
- exit(); /* Thank you, bye */
- /* Perform a simple cURL-powered proxy request to broadcast */
- function broadcast( $url ) {
- /* Format POST data accordingly */
- $data = array();
- foreach ($_POST as $key => $value) $data []= urlencode($key).'='.urlencode($value);
- $data = implode('&', $data);
- /* Log the broadcast */
- file_put_contents('_logs/'.time().'.'.reverse_lookup( $url ).'-'.rand(1,100), $data);
- $ch = curl_init(); /* Initialize */
- curl_setopt($ch, CURLOPT_URL, $url);
- curl_setopt($ch, CURLOPT_POST, count($data));
- curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
- curl_exec($ch); /* Execute HTTP request */
- curl_close($ch); /* Close */
- }
- function reverse_lookup( $url ) {
- global $ipns;
- foreach ( $ipns as $tag => $_url ) {
- if ( $url == $_url ) return $tag;
- }
- return 'unknown';
- }
- ?>
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