Merge branch '5.0' into 5.1

* 5.0:
  Handle fetch mode deprecation of DBAL 2.11.
  Fixed handling of CSRF logout error
  [WebProfilerBundle] changed label of memory usage in time panel (Mb into MiB)
  [DotEnv][WebLink][Templating][ErrorHandler] Updated README with minimal example

Author: nicolas-grekas

Firewall/ExceptionListener.php

@@ -111,7 +111,7 @@ public function onKernelException(ExceptionEvent $event)
             }
 
             if ($exception instanceof LogoutException) {
-                $this->handleLogoutException($exception);
+                $this->handleLogoutException($event, $exception);
 
                 return;
             }
@@ -183,10 +183,12 @@ private function handleAccessDeniedException(ExceptionEvent $event, AccessDenied
         }
     }
 
-    private function handleLogoutException(LogoutException $exception): void
+    private function handleLogoutException(ExceptionEvent $event, LogoutException $exception): void
     {
+        $event->setException(new AccessDeniedHttpException($exception->getMessage(), $exception));
+
         if (null !== $this->logger) {
-            $this->logger->info('A LogoutException was thrown.', ['exception' => $exception]);
+            $this->logger->info('A LogoutException was thrown; wrapping with AccessDeniedHttpException', ['exception' => $exception]);
         }
     }
 

Tests/Firewall/ExceptionListenerTest.php

@@ -21,6 +21,7 @@
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 use Symfony\Component\Security\Core\Exception\AccessDeniedException;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
+use Symfony\Component\Security\Core\Exception\LogoutException;
 use Symfony\Component\Security\Http\Authorization\AccessDeniedHandlerInterface;
 use Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface;
 use Symfony\Component\Security\Http\Firewall\ExceptionListener;
@@ -157,6 +158,17 @@ public function testAccessDeniedExceptionNotFullFledged(\Exception $exception, \
         $this->assertSame(null === $eventException ? $exception : $eventException, $event->getThrowable()->getPrevious());
     }
 
+    public function testLogoutException()
+    {
+        $event = $this->createEvent(new LogoutException('Invalid CSRF.'));
+
+        $listener = $this->createExceptionListener();
+        $listener->onKernelException($event);
+
+        $this->assertEquals('Invalid CSRF.', $event->getException()->getMessage());
+        $this->assertEquals(403, $event->getException()->getStatusCode());
+    }
+
     public function getAccessDeniedExceptionProvider()
     {
         return [