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IPN Verification Postback to HTTPS

Thread began 2/21/2017 1:16 pm by Dave Buchholz | Last modified 9/14/2021 9:01 am by Dave Buchholz | 1320 views | 6 replies

Ray BorduinWebAssist

It looks like we have updated the function at some point.

We now use:


function WA_isValidPayPal()     {
// STEP 1: read POST data
  // Reading POSTed data directly from $_POST causes serialization issues with array data in the POST.
  // Instead, read raw POST data from the input stream.
$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 IPN message sent from PayPal and prepend 'cmd=_notify-validate'
$req 'cmd=_notify-validate';

  foreach (
$myPost as $key => $value) {
$value urlencode($value);
$req .= "&$key=$value";

// Step 2: POST IPN data back to PayPal to validate
$ch curl_init('');
curl_setopt($chCURLOPT_HTTPHEADER, array('Connection: Close'));
// In wamp-like environments that do not come bundled with root authority certificates,
  // please download 'cacert.pem' from "" 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");
  return (
strcmp ($res"VERIFIED") == 0);

You could try updating it on your end and see if that fixes the problem. It looks like you have it manually updated on line 1332 of the eCart Definition include.

Did this help? Tips are appreciated...

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