diff --git a/.env b/.env
index 73b554e..b00c020 100644
--- a/.env
+++ b/.env
@@ -17,6 +17,9 @@
# Set to 1 on production to disable watermarks and hints on webpages
IS_PRODUCTIVE=0
+# Set to 1 to enable maintenance mode, where no frontend is available (but backend login is still possible)
+MAINTENANCE_MODE=0
+
SUPPORT_EMAIL=support@invalid.invalid
HHV_EMAIL=hhv@invalid.invalid
# The email where the forms get sent to, when two stura financers confirmed a payment order
diff --git a/src/EventListener/MaintenanceModeListener.php b/src/EventListener/MaintenanceModeListener.php
new file mode 100644
index 0000000..802c980
--- /dev/null
+++ b/src/EventListener/MaintenanceModeListener.php
@@ -0,0 +1,52 @@
+enabled) {
+ return;
+ }
+
+ //Exclude certain paths from maintenance mode
+ $path = $event->getRequest()->getPathInfo();
+ foreach (self::EXLUDED_PATHS as $excludedPath) {
+ if (str_starts_with($path, $excludedPath)) {
+ return;
+ }
+ }
+
+ $response = new Response($this->twig->render('maintenance.html.twig'), Response::HTTP_SERVICE_UNAVAILABLE);
+
+ $event->setResponse($response);
+ }
+}
\ No newline at end of file
diff --git a/templates/maintenance.html.twig b/templates/maintenance.html.twig
new file mode 100644
index 0000000..ba2ece2
--- /dev/null
+++ b/templates/maintenance.html.twig
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
+ Wartungsmodus
+
+
+
Wartungsmodus
+
+
Wir führen gerade Wartungsarbeiten durch. Versuche es bitte später erneut!