From 5499a20a2cc7f1ea0ad7629b055762e62e55c593 Mon Sep 17 00:00:00 2001
From: Iris System <iris@iris.ac.nz>
Date: Wed, 14 Feb 2024 04:19:11 +1300
Subject: [PATCH] fix(bot): allow mixed-case file extensions for CDN URLs

---
 PluralKit.Bot/Utils/AvatarUtils.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PluralKit.Bot/Utils/AvatarUtils.cs b/PluralKit.Bot/Utils/AvatarUtils.cs
index 70206593..0f6d314c 100644
--- a/PluralKit.Bot/Utils/AvatarUtils.cs
+++ b/PluralKit.Bot/Utils/AvatarUtils.cs
@@ -63,7 +63,7 @@ public static class AvatarUtils
     // This lets us add resizing parameters to "borrow" their media proxy server to downsize the image
     // which in turn makes it more likely to be underneath the size limit!
     private static readonly Regex DiscordCdnUrl =
-        new(@"^https?://(?:cdn\.discordapp\.com|media\.discordapp\.net)/attachments/(\d{17,19})/(\d{17,19})/([^/\\&\?]+)\.(png|jpg|jpeg|webp)(?:\?(?<query>.*))?$");
+        new(@"^https?://(?:cdn\.discordapp\.com|media\.discordapp\.net)/attachments/(\d{17,19})/(\d{17,19})/([^/\\&\?]+)\.(png|jpe?g|webp)(?:\?(?<query>.*))?$", RegexOptions.IgnoreCase);
 
     private static readonly string DiscordMediaUrlReplacement =
         "https://media.discordapp.net/attachments/$1/$2/$3.$4?width=256&height=256";