From 2d98d343839f7c840592702f2d08a57f6ade064a Mon Sep 17 00:00:00 2001
From: Jafar Akhondali <jafar.akhoondali@gmail.com>
Date: Fri, 26 Jul 2024 05:21:27 +0200
Subject: [PATCH] Block malicious looking requests to prevent path traversal
 attacks.

---
 server.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/server.js b/server.js
index 6da1972..ab105a3 100644
--- a/server.js
+++ b/server.js
@@ -6,6 +6,11 @@ var http = require("http"),
 
 http.createServer(function(request, response) {
 
+    if (path.normalize(decodeURI(request.url)) !== decodeURI(request.url)) {
+        response.statusCode = 403;
+        response.end();
+        return;
+    }
   var uri = url.parse(request.url).pathname
     , filename = path.join(process.cwd(), uri);