From 8482a98ca6a767062917747a0b016a9ab4d35f01 Mon Sep 17 00:00:00 2001
From: Frankie B <git@diskfloppy.me>
Date: Sun, 16 Jul 2023 01:49:09 +0100
Subject: feat: add guestbook with rate limiting (#6)

* Re-add guestbook w/ rate limiting
* Add guestbook to navbar
---
 app/Http/Middleware/RateLimiter.php | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 app/Http/Middleware/RateLimiter.php

(limited to 'app/Http/Middleware')

diff --git a/app/Http/Middleware/RateLimiter.php b/app/Http/Middleware/RateLimiter.php
new file mode 100644
index 0000000..c81da43
--- /dev/null
+++ b/app/Http/Middleware/RateLimiter.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Cache;
+use Symfony\Component\HttpFoundation\Response;
+
+class RateLimiter
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        $ipAddress = $request->ip();
+        $cacheKey = 'rate_limit_' . $ipAddress;
+
+        if (Cache::has($cacheKey)) {
+            // If the cache key exists, the IP has submitted an entry within the last hour
+            return response()->view('errors.ratelimit-guestbook', [], 429);
+        }
+
+        // Add the IP address to the cache and set the expiration time to one hour
+        Cache::put($cacheKey, true, 60);
+
+        return $next($request);
+    }
+}
-- 
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