Discord selfbot that lets you see when people edit or delete their messages

revisionist.py

#!/usr/bin/env python3
# encoding: utf-8

"""
Revisionist: logs Discord message edits and revisions
Copyright © 2017 Benjamin Mintz
https://bmintz.mit-license.org/@2017
"""

import discord


class Revisionist(discord.Client):

	def __init__(self, *args, **kwargs):
		super().__init__(*args, **kwargs)

	async def on_ready(self):
		print('Username: {0.name}\nID: {0.id}'.format(self.user))
		self.log_channel = discord.utils.get(
			self.get_all_channels(),
			guild__name='Test Server',
			name='revisionist'
		)
		print()

	async def on_message_edit(self, before, after):
		if before.author.bot or before.clean_content == after.clean_content:
			return
		reply = (await self.format_author(before) + ' edited their message:\n'
		        '  {0.content}\n'
		        '→ {1.content}')
		await self.log(reply.format(before, after))

	async def on_message_delete(self, message):
		if message.author.bot:
			return
		await self.log(await self.format_author(message),
		               ' has deleted the message:\n',
		               message.content
		)

	async def format_author(self, message):
		unformatted = '{0.author} {0.author.mention}'
		if isinstance(message.author, discord.Member):
			# we are not in a DM (so author.nick exists or is None)
			unformatted += ' ({0.author.nick})'

		return unformatted.format(message)

	async def log(self, *message):
		message = ''.join(message)
		await self.log_channel.send(message)
		print(message)
		print()


if __name__ == '__main__':
	import sys
	client = Revisionist(bot=False)
	if len(sys.argv) > 1:
		client.run(sys.argv[1], bot=False)
	else:
		print('Usage: {} <token>'.format(sys.argv[0]), file=sys.stderr)
		exit(1)