From bf5238dd56b6dfe9ee2f1d629d017b2075750663 Mon Sep 17 00:00:00 2001
From: David Eisinger <david.eisinger@gmail.com>
Date: Sun, 4 Feb 2024 15:41:42 -0500
Subject: [PATCH] Check for file before decrypt/dither

---
 bin/dither/dither.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bin/dither/dither.rb b/bin/dither/dither.rb
index 3e14796..eec3786 100644
--- a/bin/dither/dither.rb
+++ b/bin/dither/dither.rb
@@ -9,6 +9,8 @@ DITHER = ENV["DITHER"] != "0"
 FORMAT = DITHER ? "png" : "webp"
 
 get "/*" do |path|
+  halt 404, {"Content-Type" => "text/plain"}, "not found" unless File.exist?("#{ROOT}/#{path}.enc")
+
   content_type "image/#{FORMAT}"
 
   geometry = params["geo"] unless params["geo"] == ""