158 lines
4.1 KiB
Python
158 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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"""Group Chat Logger
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This bot is a modified version of the echo2 bot found here:
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https://github.com/python-telegram-bot/python-telegram-bot/blob/master/examples/echobot2.py
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This bot logs all messages sent in a Telegram Group to a database.
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"""
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from __future__ import print_function
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import sys
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from telegram.ext import Updater, CommandHandler, MessageHandler, Filters
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import os
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from model import User, Message, session
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from time import strftime
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import re
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import unidecode
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# Define a few command handlers. These usually take the two arguments bot and
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# update. Error handlers also receive the raised TelegramError object in error.
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def security_check_message(bot, update):
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""" Test message for security violations """
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ban_patterns = [
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'[0-9a-fA-F]{40,40}',
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'Fart',
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]
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# Remove accents from letters
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message = unidecode.unidecode(update.message.text)
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regexp_pattern = "|".join(ban_patterns)
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r = re.compile(regexp_pattern, re.IGNORECASE)
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if r.search(message):
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print("Bannable match: {}".format(update.message.text.encode('utf-8')))
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# Delete the message
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update.message.delete()
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# # Ban the user
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# kick_success = update.message.chat.kick_member(update.message.from_user.id)
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# print(kick_success)
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def logger(bot, update):
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"""Primary Logger. Handles incoming bot messages and saves them to DB"""
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user = update.message.from_user
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if id_exists(user.id) == True:
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log_message(user.id, update.message.text)
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else:
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add_user_success = add_user(user.id, user.first_name, user.last_name, user.username)
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if add_user_success == True:
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log_message(user.id, update.message.text)
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print("User added: {}".format(user.id))
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else:
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print("Something went wrong adding the user {}".format(user.id), file=sys.stderr)
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if update.message.text:
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print("{} {} ({}) : {}".format(
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strftime("%Y-%m-%dT%H:%M:%S"),
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user.id,
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(user.username or (user.first_name + " " + user.last_name) or "").encode('utf-8'),
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update.message.text.encode('utf-8'))
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)
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try:
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security_check_message(bot, update)
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except Exception as e:
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print(e)
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# DB queries
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def id_exists(id_value):
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s = session()
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bool_set = False
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for id1 in s.query(User.id).filter_by(id=id_value):
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if id1:
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bool_set = True
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s.close()
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return bool_set
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def log_message(user_id, user_message):
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try:
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s = session()
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msg1 = Message(user_id=user_id,message=user_message)
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s.add(msg1)
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s.commit()
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s.close()
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except Exception as e:
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print(e)
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def add_user(user_id, first_name, last_name, username):
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try:
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s = session()
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bool_set = False
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user = User(id=user_id, first_name = first_name, last_name = last_name, username = username)
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s.add(user)
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s.commit()
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s.close()
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if id_exists(user_id) == True:
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bool_set = True
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return bool_set
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except Exception as e:
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print(e)
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def error(bot, update, error):
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"""Log Errors caused by Updates."""
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print("Update '{}' caused error '{}'".format(update, error), file=sys.stderr)
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def main():
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"""Start the bot."""
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# Create the EventHandler and pass it your bot's token.
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updater = Updater(os.environ["TELEGRAM_BOT_TOKEN"])
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# Get the dispatcher to register handlers
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dp = updater.dispatcher
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# on different commands - answer in Telegram
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# on noncommand i.e message - echo the message on Telegram
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dp.add_handler(MessageHandler(Filters.text, logger))
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# dp.add_handler(MessageHandler(Filters.status_update, status))
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# log all errors
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dp.add_error_handler(error)
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# Start the Bot
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updater.start_polling()
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print("Bot started")
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# Run the bot until you press Ctrl-C or the process receives SIGINT,
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# SIGTERM or SIGABRT. This should be used most of the time, since
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# start_polling() is non-blocking and will stop the bot gracefully.
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updater.idle()
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if __name__ == '__main__':
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main()
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