/**
* Handle IPN.
*/
private function handleIPN()
{
if (!PayPal_Helper::validate_notification()) {
trigger_error('PayPal: Invalid notification received. ' . json_encode($_POST), E_USER_WARNING);
return;
}
// get objects
$transaction_manager = ShopTransactionsManager::getInstance();
// get data
$handled = false;
$type = escape_chars($_POST['txn_type']);
$amount = escape_chars($_POST['amount']);
// handle different notification types
switch ($type) {
case 'recurring_payment':
case 'recurring_payment_expired':
case 'recurring_payment_failed':
case 'recurring_payment_profile_created':
case 'recurring_payment_profile_cancel':
case 'recurring_payment_skipped':
case 'recurring_payment_suspended':
case 'recurring_payment_suspended_due_to_max_failed_payment':
$profile_id = escape_chars($_REQUEST['recurring_payment_id']);
$transaction = $transaction_manager->getSingleItem($transaction_manager->getFieldNames(), array('token' => $profile_id));
if (is_object($transaction)) {
$handled = $this->handleRecurringIPN($transaction, $type, $amount);
} else {
trigger_error("PayPal: Unable to handle IPN, unknown transaction {$profile_id}.", E_USER_WARNING);
}
break;
}
// record unhandled notifications
if (!$handled) {
trigger_error("PayPal: Unhandled notification '{$type}'.", E_USER_NOTICE);
}
}
