Added a maintenance mode

jbtronics · Jan 21, 2025 · 36ce84b · 36ce84b
1 parent b49cb5e
commit 36ce84b
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diff --git 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=[email protected]
 HHV_EMAIL=[email protected]
 # 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
@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+
+namespace App\EventListener;
+
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
+use Twig\Environment;
+
+#[AsEventListener]
+final class MaintenanceModeListener
+{
+
+    public const EXLUDED_PATHS = [
+        '/admin',
+        '/login',
+        '/logout',
+        '/2fa',
+        '/_wdt',
+        '/_profiler',
+    ];
+
+    public function __construct(private Environment $twig,
+        #[Autowire(env: 'bool:MAINTENANCE_MODE')]
+        private readonly bool $enabled = false)
+    {
+
+    }
+
+    public function __invoke(RequestEvent $event): void
+    {
+        if (!$this->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);
+    }
+}
diff --git a/templates/maintenance.html.twig b/templates/maintenance.html.twig
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="{{ app.request.locale }}">
+<head>
+    <!-- Required meta tags -->
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+    <style>
+        body { text-align: center; padding: 150px; }
+        h1 { font-size: 50px; }
+        body { font: 20px Helvetica, sans-serif; color: #333; }
+        article { display: block; text-align: left; width: 650px; margin: 0 auto; }
+        a { color: #dc8100; text-decoration: none; }
+        a:hover { color: #333; text-decoration: none; }
+    </style>
+
+    <title>Wartungsmodus</title>
+</head>
+<body>
+    <h1>Wartungsmodus</h1>
+    <div>
+        <p>Wir führen gerade Wartungsarbeiten durch. Versuche es bitte später erneut!</p>
+        <p>&mdash; Admin</p>
+    </div>
+
+    <div style="position: fixed; bottom: 5em;">
+        <hr>
+        <p><a href="{{ path("app_login") }}">Backend Login</a></p>
+    </div>
+</body>