Fix uninitialized variable access

diff --git a/lib/auth.php b/lib/auth.php
index 41fc009..271da4c 100644 (file)
--- a/lib/auth.php
+++ b/lib/auth.php
@@ -301,7 +301,7 @@ function ensure_valid_auth_user()
                                header('HTTP/1.0 401 Unauthorized');
                        }
                        $auth_user = '';
-                       $auth_user_groups = get_groups_from_username($user);
+                       $auth_user_groups = array();
                        return true; // no auth input
                }
                case AUTH_TYPE_FORM: