harden: 404-guard for .bak/.pre- static paths + broaden .gitignore

0cda8abe4fc63be7a8a36b98a0dec2bd85489da8 · 2026-05-19 08:19:20 -0700 · Steve Abrams

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Files touched

M .gitignore
M server.js

Diff

commit 0cda8abe4fc63be7a8a36b98a0dec2bd85489da8
Author: Steve Abrams <steve@designerwallcoverings.com>
Date:   Tue May 19 08:19:20 2026 -0700

    harden: 404-guard for .bak/.pre- static paths + broaden .gitignore
    
    Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 .gitignore | 3 +++
 server.js  | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/.gitignore b/.gitignore
index 4a0b3ea..a90a60e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,6 @@ tmp/
 dist/
 build/
 .next/
+*.bak
+*.bak.*
+*.pre-*
diff --git a/server.js b/server.js
index e60e60b..ebc2a45 100644
--- a/server.js
+++ b/server.js
@@ -26,6 +26,14 @@ app.use((req, res, next) => {
   next();
 });
 
+// 404-guard: never serve snapshot files (.bak / .bak.* / .pre-*) from static root
+app.use((req, res, next) => {
+  if (/\.(bak|pre-[^/]*)($|\.)|\.bak\./i.test(req.path)) {
+    return res.status(404).render('404', { site: SITE });
+  }
+  next();
+});
+
 app.use(express.static(path.join(__dirname, 'public'), { maxAge: '1h' }));
 
 const allTerritories = Array.from(new Set(reps.flatMap(r => r.territories))).sort();

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