From bda3ae89e890a6716bec52d0a3175d6486c0ccf6 Mon Sep 17 00:00:00 2001
From: Mario Voigt <vmario@gitea.noreply@stadtfabrikanten.org>
Date: Wed, 12 Apr 2023 11:51:00 +0200
Subject: [PATCH] fix logout bug

---
 plugin.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugin.php b/plugin.php
index 5a239a4..0cc1110 100644
--- a/plugin.php
+++ b/plugin.php
@@ -104,7 +104,9 @@ function ldapauth_is_valid_user( $value ) {
 				$yourls_user_passwords[$username]='phpass:ThereIsNoPasswordButHey,WhoCares?';
 			}
 			yourls_set_user( $_SESSION['LDAPAUTH_AUTH_USER'] );
-			return true;
+            //return true; //modified 12.04.2023 by vmario. function must return null to match shunt_is_valid_user in functions-auth.php
+            return null;
+
 		} else {
 			ldapauth_debug($username . ' is not admin user.');
 			return $value;