python-app-rocketbot/rocketbot/cogs/autokickcog.py

import weakref

from discord import Guild, Member
from discord.ext import commands

from config import CONFIG
from rocketbot.cogs.basecog import BaseCog, BotMessage, BotMessageReaction, CogSetting

class AutoKickCog(BaseCog, name='Auto Kick'):
	"""
	Cog for automatically kicking ALL new joins. For temporary use during join raids.
	"""
	SETTING_ENABLED = CogSetting('enabled', bool,
		brief='autokick',
		description='Whether this cog is enabled for a guild.')

	def __init__(self, bot):
		super().__init__(bot)
		self.add_setting(AutoKickCog.SETTING_ENABLED)

	@commands.group(
		brief='Automatically kicks all new users as soon as they join',
	)
	@commands.has_permissions(ban_members=True)
	@commands.guild_only()
	async def autokick(self, context: commands.Context):
		'Auto-kick'
		if context.invoked_subcommand is None:
			await context.send_help()

	@commands.Cog.listener()
	async def on_member_join(self, member: Member) -> None:
		'Event handler'
		guild: Guild = member.guild
		if not self.get_guild_setting(guild, self.SETTING_ENABLED):
			return
		await member.kick(reason=f'Rocketbot: Autokick enabled.')
		msg = BotMessage(guild,
						text=f'Autokicked {member.mention} ({member.id}). To disable this feature: `{CONFIG["command_prefix"]}autokick disable`.',
						type=BotMessage.TYPE_INFO,
						context=None)
		await self.post_message(msg)
		self.log(guild, f'Autokicked {member.nick}')