Fixes exception when not using primary PayPal email

PayPal allows adding multiple emails, if you are using one of the alternative emails instead of the primary email then WoltLab will throw the exception.
The `receiver_email` is always the primary email while `business` is the secondary in the IPN.

diff --git a/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php b/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
index f6420c30ad5d9c8eddfc0ca505420ca307bb52f4..af1330728eae9418d217c254333b73699c6ed114 100644 (file)
--- a/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
+++ b/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
@@ -55,8 +55,8 @@ class PaypalCallbackAction extends AbstractAction {
                        }
                        
                        // Check that receiver_email is your Primary PayPal email
-                       if (strtolower($_POST['receiver_email']) != strtolower(PAYPAL_EMAIL_ADDRESS)) {
-                               throw new SystemException("Mismatching receiver_email '" . $_POST['receiver_email'] . "', expected '".PAYPAL_EMAIL_ADDRESS."'.");
+                       if (strtolower($_POST['receiver_email']) != strtolower(PAYPAL_EMAIL_ADDRESS) && strtolower($_POST['business']) != strtolower(PAYPAL_EMAIL_ADDRESS)) {
+                               throw new SystemException("Mismatching receiver_email and business '" . $_POST['receiver_email'] . "', expected '".PAYPAL_EMAIL_ADDRESS."'.");
                        }
                        
                        // get token