// Require this for curl class
require_once $CFG->libdir . '/filelib.php';
/// Keep out casual intruders
if (empty($_POST) or !empty($_GET)) {
print_error("Sorry, you can not use the script that way.");
}
/// Read all the data from PayPal and get it ready for later;
/// we expect only valid UTF-8 encoding, it is the responsibility
/// of user to set it up properly in PayPal business account,
/// it is documented in docs wiki.
$req = 'cmd=_notify-validate';
$data = new stdClass();
foreach ($_POST as $key => $value) {
$req .= "&{$key}=" . urlencode($value);
$data->{$key} = $value;
}
// GET THE PAYPAL GATEWAY TO BE USED
// THE CUSTOM FIELD IS THE TRANSACTION ID
$gateway = new MoodecGatewayPaypal((int) $data->custom);
// CONFIRM NOTIFICATION WITH PAYPAL
$c = new curl();
$options = array('returntransfer' => true, 'httpheader' => array('application/x-www-form-urlencoded', "Host: www.paypal.com"), 'timeout' => 30, 'CURLOPT_HTTP_VERSION' => CURL_HTTP_VERSION_1_1);
$location = $gateway->get_url();
$result = $c->post($location, $req, $options);
// Read the response from Paypal
if (0 < strlen($result) && strcmp($result, "VERIFIED") == 0) {
// If we are here, it means the payment was a valid paypal transaction
// So now we get the gateway to validate and handle the transaction info
$gateway->handle($data);
}
exit;
