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Your IP : 216.73.216.174
<?php
if (isset($_POST['ipn_track_id'])) {
//and strpos($_POST['item_name_1'], "Order payment") !== false
$Allow_Order_Payments = get_option("EWD_OTP_Allow_Order_Payments");
if ($Allow_Order_Payments == "Yes") {
EWD_OTP_IPN();
}
}
function EWD_OTP_IN() {
global $wpdb;
global $EWD_OTP_orders_table_name;
$Order_Email = get_option("EWD_OTP_Order_Email");
$Default_Payment_Status = get_option("EWD_OTP_Default_Payment_Status");
$PayPal_Email_Address = get_option("EWD_OTP_PayPal_Email_Address");
// 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", 0);
// Set to 0 once you're ready to go live
define("USE_SANDBOX", 0);
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, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
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);
}
// Inspect IPN validation result and act accordingly
// Split response headers and payload, a better way for strcmp
$tokens = explode("\r\n\r\n", trim($res));
$res = trim(end($tokens));
if (strcmp ($res, "VERIFIED") == 0) {
if (DEBUG == true) {
foreach ($_POST as $key => $value) {
$SaveString .= $key . ": " . $value . "<br>";
}
$Current = file_get_contents("Information.html");
$SaveContent = $Current . "<BR><BR><BR><BR>" . $SaveString;
file_put_contents("Information.html", $SaveContent);
}
$Email = $_POST['payer_email'];
$TXN_ID = $_POST['txn_id'];
$Order_ID = $_POST['custom'];
$wpdb->get_results($wpdb->prepare("UPDATE $EWD_OTP_orders_table_name SET Order_Payment_Completed='Yes', Order_PayPal_Receipt_Number=%s WHERE Order_ID=%d", $TXN_ID, $Order_ID));
$Order_Info = $wpdb->get_row($wpdb->prepare("SELECT * FROM $EWD_OTP_orders_table_name WHERE Order_ID='%d'", $Order_ID));
if ($Default_Payment_Status != "None") {
$Update_Time = date("Y-m-d H:i:s");
Update_EWD_OTP_Order_Status($Order_ID, $Default_Payment_Status, $Update_Time);
if ($Order_Email == "Change" and $Order_Info->Order_Email != "") {EWD_OTP_Send_Email($Order_Info->Order_Email, $Order_Info->Order_Number, $Order_Info->Order_Status, $Order_Info->Order_Notes_Public, $Order_Info->Order_Status_Updated, $Order_Info->Order_Name);}
}
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
$to = $PayPal_Email_Address;
$subject = 'Download Area | Invalid Payment';
$message = '
Dear Administrator,
A payment has been made but is flagged as INVALID.
Please verify the payment manualy and contact the buyer.
Buyer Email: '.$email.'
';
$headers = array('Content-Type: text/html; charset=UTF-8');
wp_mail($to, $subject, $message, $headers);
if(DEBUG == true) {
error_log(date('[Y-m-d H:i e] '). "Invalid IPN: $req" . PHP_EOL, 3, LOG_FILE);
}
}
}
?>