mirror of
https://github.com/PaiGramTeam/PaiGram.git
synced 2024-11-16 04:35:49 +00:00
68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
import asyncio
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import contextlib
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from typing import Callable, Coroutine, Any, Union, List, Dict, Optional, TypeVar, Type
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from telegram.error import RetryAfter
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from telegram.ext import BaseRateLimiter, ApplicationHandlerStop
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from utils.log import logger
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JSONDict: Type[dict[str, Any]] = Dict[str, Any]
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RL_ARGS = TypeVar("RL_ARGS")
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class RateLimiter(BaseRateLimiter[int]):
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_lock = asyncio.Lock()
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__slots__ = (
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"_limiter_info",
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"_retry_after_event",
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)
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def __init__(self):
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self._limiter_info: Dict[Union[str, int], float] = {}
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self._retry_after_event = asyncio.Event()
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self._retry_after_event.set()
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async def process_request(
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self,
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callback: Callable[..., Coroutine[Any, Any, Union[bool, JSONDict, List[JSONDict]]]],
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args: Any,
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kwargs: Dict[str, Any],
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endpoint: str,
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data: Dict[str, Any],
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rate_limit_args: Optional[RL_ARGS],
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) -> Union[bool, JSONDict, List[JSONDict]]:
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chat_id = data.get("chat_id")
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with contextlib.suppress(ValueError, TypeError):
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chat_id = int(chat_id)
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loop = asyncio.get_running_loop()
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time = loop.time()
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await self._retry_after_event.wait()
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async with self._lock:
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chat_limit_time = self._limiter_info.get(chat_id)
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if chat_limit_time:
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if time >= chat_limit_time:
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raise ApplicationHandlerStop
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del self._limiter_info[chat_id]
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try:
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return await callback(*args, **kwargs)
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except RetryAfter as exc:
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logger.warning("chat_id[%s] 触发洪水限制 当前被服务器限制 retry_after[%s]秒", chat_id, exc.retry_after)
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self._limiter_info[chat_id] = time + (exc.retry_after * 2)
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sleep = exc.retry_after + 0.1
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self._retry_after_event.clear()
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await asyncio.sleep(sleep)
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finally:
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self._retry_after_event.set()
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async def initialize(self) -> None:
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pass
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async def shutdown(self) -> None:
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pass
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