ae9dbf569c
* Simple ones first * Less simple but still simple. * Slightly more complicated * use correct name * move to module * Black -l 120 * review * give users the proper feedback Co-authored-by: aikaterna <20862007+aikaterna@users.noreply.github.com>
117 lines
4.2 KiB
Python
117 lines
4.2 KiB
Python
from PIL import Image
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from io import BytesIO
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import aiohttp
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import discord
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import logging
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from redbot.core import commands, checks, Config
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log = logging.getLogger("red.aikaterna.antiphoneclapper")
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class AntiPhoneClapper(commands.Cog):
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"""This cog deletes bad GIFs that will crash phone clients."""
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async def red_delete_data_for_user(self, **kwargs):
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""" Nothing to delete """
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return
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def __init__(self, bot):
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self.bot = bot
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self.session = aiohttp.ClientSession()
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self.config = Config.get_conf(self, 2719371001, force_registration=True)
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default_guild = {"watching": []}
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self.config.register_guild(**default_guild)
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@commands.group()
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@checks.mod_or_permissions(administrator=True)
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@commands.guild_only()
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async def nogif(self, ctx):
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"""Configuration options."""
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pass
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@nogif.command()
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async def watch(self, ctx, channel: discord.TextChannel):
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"""
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Add a channel to watch.
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Gif attachments that break mobile clients will be removed in these channels.
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"""
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channel_list = await self.config.guild(ctx.guild).watching()
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if channel.id not in channel_list:
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channel_list.append(channel.id)
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await self.config.guild(ctx.guild).watching.set(channel_list)
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await ctx.send(f"{self.bot.get_channel(channel.id).mention} will have bad gifs removed.")
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@nogif.command()
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async def watchlist(self, ctx):
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"""List the channels being watched."""
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channel_list = await self.config.guild(ctx.guild).watching()
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msg = "Bad gifs will be removed in:\n"
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for channel in channel_list:
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channel_obj = self.bot.get_channel(channel)
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msg += f"{channel_obj.mention}\n"
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await ctx.send(msg)
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@nogif.command()
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async def unwatch(self, ctx, channel: discord.TextChannel):
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"""Remove a channel from the watch list."""
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channel_list = await self.config.guild(ctx.guild).watching()
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if channel.id in channel_list:
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channel_list.remove(channel.id)
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else:
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return await ctx.send("Channel is not being watched.")
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await self.config.guild(ctx.guild).watching.set(channel_list)
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await ctx.send(f"{self.bot.get_channel(channel.id).mention} will not have bad gifs removed.")
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def is_phone_clapper(self, im):
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limit = im.size
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tile_sizes = []
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for frame in range(im.n_frames):
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im.seek(frame)
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tile_sizes.append(im.tile[0][1][2:])
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return any([x[0] > limit[0] or x[1] > limit[1] for x in tile_sizes])
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@commands.Cog.listener()
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async def on_message(self, m):
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if not m.attachments:
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return
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if isinstance(m.channel, discord.abc.PrivateChannel):
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return
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if m.author.bot:
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return
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watch_channel_list = await self.config.guild(m.guild).watching()
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if not watch_channel_list:
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return
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if m.channel.id not in watch_channel_list:
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return
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for att in m.attachments:
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if not att.filename.endswith(".gif") or att.size > 200000:
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continue
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async with self.session.get(att.url) as resp:
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data = await resp.content.read()
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f = BytesIO(data)
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try:
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img = Image.open(f)
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phone_clapper = self.is_phone_clapper(img)
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except Image.DecompressionBombError:
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phone_clapper = True
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if phone_clapper:
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try:
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await m.delete()
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await m.channel.send(f"{m.author.mention} just tried to send a phone-killing GIF and I removed it.")
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return
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except discord.errors.Forbidden:
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await m.channel.send(f"Don't send GIFs that do that, {m.author.mention}")
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log.debug(f"Failed to delete message ({m.id}) that contained phone killing gif")
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return
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else:
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return
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def cog_unload(self):
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self.bot.loop.create_task(self.session.close())
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