mirror of https://github.com/nocturn9x/BotBase.git
74 lines
3.0 KiB
Python
74 lines
3.0 KiB
Python
from pyrogram import Client, Filters, Message, CallbackQueryHandler
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from ..config import MAX_UPDATE_THRESHOLD, ANTIFLOOD_SENSIBILITY, BAN_TIME, ADMINS, BYPASS_FLOOD, FLOOD_NOTICE, \
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COUNT_CALLBACKS_SEPARATELY, FLOOD_PERCENTAGE, CACHE, PRIVATE_ONLY, DELETE_MESSAGES
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from collections import defaultdict
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import logging
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import time
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from ..methods.safe_send import send_message
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from ..methods.various import delete_messages
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# Some variables for runtime configuration
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MESSAGES = defaultdict(list) # Internal variable for the antiflood module
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BANNED_USERS = Filters.user() # Filters where the antiflood will put banned users
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BYPASS_USERS = Filters.user(list(ADMINS.keys())) if BYPASS_FLOOD else Filters.user()
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QUERIES = defaultdict(list) if COUNT_CALLBACKS_SEPARATELY else MESSAGES
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FILTER = Filters.private if PRIVATE_ONLY else ~Filters.user()
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def is_flood(updates: list):
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"""Calculates if a sequence of
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updates corresponds to a flood"""
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genexpr = [i <= ANTIFLOOD_SENSIBILITY for i in
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((updates[i + 1] - timestamp) if i < (MAX_UPDATE_THRESHOLD - 1) else (timestamp - updates[i - 1]) for
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i, timestamp in enumerate(updates))]
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return genexpr.count(True) >= int((len(genexpr) / 100) * FLOOD_PERCENTAGE)
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@Client.on_message(FILTER & ~BYPASS_USERS, group=-1)
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def anti_flood(client, update):
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"""Anti flood module"""
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user_id = update.from_user.id
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if isinstance(update, Message):
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VAR = MESSAGES
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chat = update.chat.id
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date = update.date
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message_id = update.message_id
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else:
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VAR = QUERIES
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message_id = None
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chat = user_id
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if update.message:
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date = update.message.date
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else:
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date = time.time()
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if isinstance(VAR[user_id], tuple):
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chat, date = VAR[user_id]
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if time.time() - date >= BAN_TIME:
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logging.warning(f"{user_id} has waited at least {BAN_TIME} seconds and can now text again")
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BANNED_USERS.remove(user_id)
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del VAR[user_id]
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elif len(VAR[user_id]) >= MAX_UPDATE_THRESHOLD:
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VAR[user_id].append({chat: (date, message_id)})
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logging.info(f"MAX_UPDATE_THRESHOLD ({MAX_UPDATE_THRESHOLD}) Reached for {user_id}")
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user_data = VAR.pop(user_id)
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timestamps = [list(*d.values())[0] for d in user_data]
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updates = [list(*d.values())[1] for d in user_data]
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if is_flood(timestamps):
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logging.warning(f"Flood detected from {user_id} in chat {chat}")
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if user_id in CACHE:
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del CACHE[user_id]
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BANNED_USERS.add(user_id)
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VAR[user_id] = chat, time.time()
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if FLOOD_NOTICE:
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send_message(client, True, user_id, FLOOD_NOTICE)
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if DELETE_MESSAGES and any(updates):
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delete_messages(client, True, chat, filter(bool, updates))
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else:
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if user_id in VAR:
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del VAR[user_id]
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else:
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VAR[user_id].append({chat: (date, message_id)})
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