diff options
| -rw-r--r-- | bot/cogs/antimalware.py | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/bot/cogs/antimalware.py b/bot/cogs/antimalware.py index 9e9e81364..373619895 100644 --- a/bot/cogs/antimalware.py +++ b/bot/cogs/antimalware.py @@ -1,4 +1,5 @@ import logging +from os.path import splitext from discord import Embed, Message, NotFound from discord.ext.commands import Cog @@ -28,24 +29,30 @@ class AntiMalware(Cog): return embed = Embed() - for attachment in message.attachments: - filename = attachment.filename.lower() - if filename.endswith('.py'): - embed.description = ( - f"It looks like you tried to attach a Python file - please " - f"use a code-pasting service such as {URLs.site_schema}{URLs.site_paste}" - ) - break # Other detections irrelevant because we prioritize the .py message. - if not filename.endswith(tuple(AntiMalwareConfig.whitelist)): - whitelisted_types = ', '.join(AntiMalwareConfig.whitelist) - meta_channel = self.bot.get_channel(Channels.meta) - embed.description = ( - f"It looks like you tried to attach a file type that we " - f"do not allow. We currently allow the following file " - f"types: **{whitelisted_types}**. \n\n Feel free to ask " - f"in {meta_channel.mention} if you think this is a mistake." - ) + file_extensions = {splitext(message.filename.lower())[1] for message in message.attachments} + extensions_blocked = file_extensions - set(AntiMalwareConfig.whitelist) + if ".py" in extensions_blocked: + # Short-circuit on *.py files to provide a pastebin link + embed.description = ( + "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 extensions_blocked: + blocked_extensions_str = ', '.join(extensions_blocked) + whitelisted_types = ', '.join(AntiMalwareConfig.whitelist) + meta_channel = self.bot.get_channel(Channels.meta) + embed.description = ( + f"It looks like you tried to attach file type(s) that we do not allow ({blocked_extensions_str}). " + f"We currently allow the following file types: **{whitelisted_types}**.\n\n" + f"Feel free to ask in {meta_channel.mention} if you think this is a mistake." + ) + if embed.description: + log.info( + f"User '{message.author}' ({message.author.id}) uploaded blacklisted file(s): {blocked_extensions_str}", + extra={"attachment_list": [attachment.filename for attachment in message.attachments]} + ) + await message.channel.send(f"Hey {message.author.mention}!", embed=embed) # Delete the offending message: |