From 8b24b12ffbdb86da3bd06ede93947d86df585a66 Mon Sep 17 00:00:00 2001
From: Clippii <clippii@protonmail.com>
Date: Sun, 28 Jun 2026 16:22:09 +0100
Subject: [PATCH] aa

---
 server.cjs | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/server.cjs b/server.cjs
index 88ed662..03d50be 100644
--- a/server.cjs
+++ b/server.cjs
@@ -1281,6 +1281,31 @@ function isProtectedDataPath(req) {
   }
 }
 
+function rawRequestPath(req) {
+  return String(req.url || '/').split(/[?#]/, 1)[0] || '/'
+}
+
+function hasUnsafeProtectedPath(req) {
+  const rawPath = rawRequestPath(req)
+  const lower = rawPath.toLowerCase()
+  const protectedPrefix =
+    lower === '/api' ||
+    lower.startsWith('/api/') ||
+    lower.startsWith('/api%2f') ||
+    lower.startsWith('/api%5c') ||
+    lower === '/data' ||
+    lower.startsWith('/data/') ||
+    lower.startsWith('/data%2f') ||
+    lower.startsWith('/data%5c')
+
+  if (!protectedPrefix) return false
+
+  const canonicalPrefix = rawPath.startsWith('/api/') || rawPath.startsWith('/data/')
+  if (!canonicalPrefix) return true
+
+  return /%(?:00|2e|2f|5c)/i.test(rawPath)
+}
+
 function isSiteSessionBootstrapPath(req) {
   if (!req.url) return false
   try {
@@ -2536,6 +2561,45 @@ ${urls.map((url) => `  <url>
   })
 }
 
+function shouldBypassSpaFallback(requestPath) {
+  const lower = requestPath.toLowerCase()
+  const basename = path.posix.basename(lower)
+  const ext = path.posix.extname(lower)
+
+  if (lower.startsWith('/.')) return true
+  if (lower.includes('/.git/') || lower.includes('/.svn/') || lower.includes('/.hg/')) return true
+  if (lower.startsWith('/api') || lower.startsWith('/data')) return true
+
+  if (
+    [
+      '.cjs',
+      '.mjs',
+      '.js',
+      '.jsx',
+      '.ts',
+      '.tsx',
+      '.json',
+      '.lock',
+      '.toml',
+      '.yaml',
+      '.yml',
+      '.env',
+      '.sqlite',
+      '.db',
+      '.sql',
+      '.zip',
+      '.gz',
+      '.tgz',
+      '.tar',
+      '.bak',
+    ].includes(ext)
+  ) {
+    return true
+  }
+
+  return /(?:^|[._-])(?:env|backup|dump|secret|credential|token|database|sqlite|db)(?:$|[._-])/.test(basename)
+}
+
 function serveStatic(req, res) {
   let requestPath = '/'
   try {
@@ -2553,6 +2617,13 @@ function serveStatic(req, res) {
 
   fs.stat(filePath, (error, stat) => {
     if (error || !stat.isFile()) {
+      if (shouldBypassSpaFallback(requestPath)) {
+        return send(res, 404, 'Not found', {
+          'content-type': 'text/plain; charset=utf-8',
+          'cache-control': 'no-store',
+        })
+      }
+
       fs.readFile(path.join(DIST_DIR, 'index.html'), (indexError, indexData) => {
         if (indexError) {
           return send(res, 404, 'Build not found. Run npm run build first.', {
@@ -2865,6 +2936,11 @@ function serveReplayMinimap(req, res) {
 }
 
 const server = http.createServer((req, res) => {
+  if (hasUnsafeProtectedPath(req)) {
+    sendJson(res, 404, { error: 'API route not found' })
+    return
+  }
+
   if (req.method === 'GET' && req.url === '/robots.txt') {
     sendRobotsTxt(req, res)
     return