Ignore all aiohttp.ContentTypeError occurrences (#228)

bot/libs/utils/tree.py

@@ -2,6 +2,7 @@
 
 from typing import TYPE_CHECKING
 
+import aiohttp
 import discord
 from discord import app_commands
 
@@ -71,11 +72,16 @@ async def on_error(
                     interaction.command.qualified_name,  # type: ignore
                     exc_info=original,
                 )
-                if interaction.response.is_done():
-                    await interaction.followup.send(
-                        embed=FullErrorEmbed(error), ephemeral=True
-                    )
+
+                # Basically just ignore all content type errors for responses
+                # Since we already have them printed to stderr, it makes no sense to send a response back to the user when a response is already sent.
+                # In this case, it actually does more harm by giving the attackers more information than less.
+                if (
+                    isinstance(original, aiohttp.ContentTypeError)
+                    and original.status == 0
+                ):
                     return
+
                 await interaction.response.send_message(
                     embed=FullErrorEmbed(error), ephemeral=True
                 )

changelog.md

@@ -18,7 +18,7 @@
 - Use proper type checking imports (https://github.com/No767/Catherine-Chan/pull/216)
 - Fix exception violations with pronouns tester (https://github.com/No767/Catherine-Chan/pull/212)
 - Migrate from Bandit, Black, Autoflake and Isort to Ruff (https://github.com/No767/Catherine-Chan/pull/218, https://github.com/No767/Catherine-Chan/pull/223)
-- Prevent unsanitized queries from creating Cloudflare errors (https://github.com/No767/Catherine-Chan/pull/226, https://github.com/No767/Catherine-Chan/pull/227)
+- Prevent unsanitized queries from creating Cloudflare errors (https://github.com/No767/Catherine-Chan/pull/226, https://github.com/No767/Catherine-Chan/pull/227, https://github.com/No767/Catherine-Chan/pull/228)
 
 ## ✨ Additions