fix: [auth] added keycloak logout

src/Controller/UsersController.php

@@ -354,6 +354,9 @@ class UsersController extends AppController
             ]);
             $this->Authentication->logout();
             $this->Flash->success(__('Goodbye.'));
+            if (Configure::read('keycloak.enabled')) {
+                $this->redirect($this->Users->keyCloaklogout());
+            }
             return $this->redirect(\Cake\Routing\Router::url('/users/login'));
         }
     }

src/Model/Behavior/AuthKeycloakBehavior.php

@@ -185,6 +185,18 @@ class AuthKeycloakBehavior extends Behavior
         return !empty($changes);
     }
 
+    public function keyCloaklogout(): string
+    {
+        $keycloakConfig = Configure::read('keycloak');
+        $logoutUrl = sprintf(
+            '%s/realms/%s/protocol/openid-connect/logout?redirect_uri=%s',
+            $keycloakConfig['provider']['baseUrl'],
+            $keycloakConfig['provider']['realm'],
+            urlencode(Configure::read('App.fullBaseUrl'))
+        );
+        return $logoutUrl;
+    }
+
     private function getAdminAccessToken()
     {
         $keycloakConfig = Configure::read('keycloak');