From 51b55b5eccea473cd0243ff648418c039f834f7f Mon Sep 17 00:00:00 2001
From: Michael <michael.hurni@gmail.com>
Date: Fri, 18 Mar 2022 23:46:53 +0100
Subject: [PATCH] Cache SNS signing certificate

---
 src/Controllers/AwsSnsController.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Controllers/AwsSnsController.php b/src/Controllers/AwsSnsController.php
index c9cf9bc..e01cddc 100644
--- a/src/Controllers/AwsSnsController.php
+++ b/src/Controllers/AwsSnsController.php
@@ -5,6 +5,7 @@
 use Aws\Sns\Exception\InvalidSnsMessageException;
 use Aws\Sns\Message;
 use Aws\Sns\MessageValidator;
+use Illuminate\Support\Facades\Cache;
 use JoggApp\AwsSns\Events\SnsMessageReceived;
 use JoggApp\AwsSns\Events\SnsTopicSubscriptionConfirmed;
 
@@ -14,7 +15,11 @@ public function __invoke()
     {
         $message = Message::fromRawPostData();
 
-        $validator = new MessageValidator();
+        $validator = new MessageValidator(function ($certUrl) {
+            return Cache::rememberForever($certUrl, function ($certUrl) {
+                return file_get_contents($certUrl);
+            });
+        });
 
         try {
             $validator->validate($message);