From 99f4b28507afe41413f9b87361ebb04747d5a23b Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Thu, 5 Dec 2024 21:14:34 -0800
Subject: [PATCH] Fix broken shortUrl validation regex

Hyphen needs to be escaped to "\-", and alphanumeric can be simplified to "\w".
---
 functions/api.js | 2 +-
 index.html       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/functions/api.js b/functions/api.js
index 4e90769..6ff41f8 100644
--- a/functions/api.js
+++ b/functions/api.js
@@ -51,7 +51,7 @@ export async function onRequestPost({ request, env }) {
     } while (await env.links.get(shortUrl) !== null); // Confirm it's not already taken
   }
   // Invalid short URLs
-  else if (!/^[0-9a-zA-Z-_]*$/g.test(shortUrl) || shortUrl === 'api') {
+  else if (!/^[\w\-]+$/g.test(shortUrl) || shortUrl === 'api') {
     return new Response('Invalid short URL.', { status: 400, headers: { 'Content-Type': 'text/plain; charset=UTF-8' } });
   }
   // User-provided duplicates
diff --git a/index.html b/index.html
index 10c1cb6..42695ca 100644
--- a/index.html
+++ b/index.html
@@ -52,7 +52,7 @@
         <label for="short-url">Custom short path</label>
         <aside id="short-url-aside">Connect wallet to enable this feature.</aside>
         <!-- Maximum 80 characters, valid characters are alphanumeric, hyphen (-), and underscore (_) -->
-        <input type="text" id="short-url" name="short-url" placeholder="example" maxlength="80" pattern="^[0-9a-zA-Z-_]*$" disabled>
+        <input type="text" id="short-url" name="short-url" placeholder="example" maxlength="80" pattern="[\w\-]+" disabled>
       </div>
 
       <button type="submit" id="generate" class="text-button">Create short link</button>
-- 
2.47.3