Update extension filter to distinguish .txt in cases where messages are longer than 2000 characters

1 files changed, 12 insertions, 0 deletions

diff --git a/bot/cogs/antimalware.py b/bot/cogs/antimalware.py
index 79bf486a4..053f1a01d 100644
--- a/bot/cogs/antimalware.py
+++ b/bot/cogs/antimalware.py
@@ -38,6 +38,18 @@ class AntiMalware(Cog):
                 "It looks like you tried to attach a Python file - "
                 f"please use a code-pasting service such as {URLs.site_schema}{URLs.site_paste}"
             )
+        elif ".txt" in extensions_blocked:
+            # Work around Discord AutoConversion of messages longer than 2000 chars to .txt
+            cmd_channel = self.bot.get_channel(Channels.bot_commands)
+            embed.description = (
+                "**Uh-oh!** It looks like your message got zapped by our spam filter. "
+                "We currently don't allow `.txt` attachments, so here are some tips to help you travel safely: \n\n"
+                "**1.** You tried to send a message longer than 2000 characters (Discord uploads these as files) \n"
+                "• Try shortening your message to fit within the character limit or use a pasting service (see below) "
+                "\n\n**2.** You tried to show someone your code (no worries, we'd love to see it!)\n"
+                f"• Try using codeblocks (run `!code-blocks` in {cmd_channel.mention}) or use a pasting service \n\n"
+                f"If you would like, here is a pasting service we like to use: {URLs.site_schema}{URLs.site_paste}"
+            )
         elif extensions_blocked:
             whitelisted_types = ', '.join(AntiMalwareConfig.whitelist)
             meta_channel = self.bot.get_channel(Channels.meta)