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# -*- coding: utf-8 -*- |
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from aiogram.dispatcher.handler import CancelHandler, current_handler |
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from utils.db_api.set_ban_members import ban_members |
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from utils.db_api.unban_members import unban_member |
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from data.config import ban_time, exceeded_count |
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from aiogram.dispatcher.middlewares import BaseMiddleware |
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from aiogram.dispatcher import DEFAULT_RATE_LIMIT |
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from aiogram.utils.exceptions import Throttled |
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from aiogram import types, Dispatcher |
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import asyncio |
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""" |
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Created on 26.09.2021 |
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@author: Nikita |
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""" |
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class ThrottlingMiddleware(BaseMiddleware): |
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def __init__(self, limit=DEFAULT_RATE_LIMIT, key_prefix='antiflood_'): |
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self.rate_limit = limit |
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self.prefix = key_prefix |
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super(ThrottlingMiddleware, self).__init__() |
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async def on_pre_process_update(self, update: types.Update, data: dict): |
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if update.message: |
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user_id = update.message.from_user.id |
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elif update.callback_query: |
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user_id = update.callback_query.from_user.id |
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else: |
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return |
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if user_id in await unban_member(user_id=user_id, ban_time=ban_time): |
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raise CancelHandler() |
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async def on_process_message(self, message: types.Message, data: dict): |
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handler = current_handler.get() |
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dispatcher = Dispatcher.get_current() |
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if handler: |
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limit = getattr(handler, "throttling_rate_limit", self.rate_limit) |
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key = getattr(handler, "throttling_key", f"{self.prefix}_{handler.__name__}") |
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else: |
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limit = self.rate_limit |
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key = f"{self.prefix}_message" |
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try: |
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await dispatcher.throttle(key, rate=limit) |
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except Throttled as t: |
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await self.message_throttled(message, t) |
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raise CancelHandler() |
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async def message_throttled(self, message: types.Message, throttled: Throttled): |
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""" |
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Notify user only on first exceed and notify about unlocking only on last exceed |
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""" |
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# Prevent flooding |
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if throttled.exceeded_count == exceeded_count: |
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await message.reply('Слишком много запросов 😤!') |
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await ban_members(user_id=throttled.user, |
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time_out=throttled.called_at) |
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await message.reply(f'Вы были заблокированы, на {ban_time} секунд!') |
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await asyncio.sleep(ban_time) |
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await message.reply('Вас разблокировали, теперь Вы снова можете пообщаться со мной 🧐!') |
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Non1ce /
Russian-conversational-chat_bot
