mirror of
https://github.com/PaiGramTeam/PamGram.git
synced 2024-11-22 06:17:54 +00:00
290 lines
10 KiB
Python
290 lines
10 KiB
Python
"""BOT"""
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import asyncio
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import signal
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from functools import wraps
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from signal import SIGABRT, SIGINT, SIGTERM, signal as signal_func
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from ssl import SSLZeroReturnError
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from typing import Callable, List, Optional, TYPE_CHECKING, TypeVar
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import pytz
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import uvicorn
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from fastapi import FastAPI
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from telegram import Bot, Update
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from telegram.error import NetworkError, TelegramError, TimedOut
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from telegram.ext import (
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Application as TelegramApplication,
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ApplicationBuilder as TelegramApplicationBuilder,
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Defaults,
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JobQueue,
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)
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from typing_extensions import ParamSpec
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from uvicorn import Server
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from core.config import config as application_config
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from core.handler.limiterhandler import LimiterHandler
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from core.manager import Managers
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from core.override.telegram import HTTPXRequest
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from core.ratelimiter import RateLimiter
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from utils.const import WRAPPER_ASSIGNMENTS
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from utils.log import logger
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from utils.models.signal import Singleton
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if TYPE_CHECKING:
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from asyncio import Task
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from types import FrameType
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__all__ = ("Application",)
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R = TypeVar("R")
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T = TypeVar("T")
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P = ParamSpec("P")
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class Application(Singleton):
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"""Application"""
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_web_server_task: Optional["Task"] = None
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_startup_funcs: List[Callable] = []
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_shutdown_funcs: List[Callable] = []
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def __init__(self, managers: "Managers", telegram: "TelegramApplication", web_server: "Server") -> None:
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self._running = False
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self.managers = managers
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self.telegram = telegram
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self.web_server = web_server
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self.managers.set_application(application=self) # 给 managers 设置 application
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self.managers.build_executor("Application")
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@classmethod
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def build(cls):
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managers = Managers()
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telegram = (
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TelegramApplicationBuilder()
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.get_updates_read_timeout(application_config.update_read_timeout)
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.get_updates_write_timeout(application_config.update_write_timeout)
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.get_updates_connect_timeout(application_config.update_connect_timeout)
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.get_updates_pool_timeout(application_config.update_pool_timeout)
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.defaults(Defaults(tzinfo=pytz.timezone("Asia/Shanghai")))
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.token(application_config.bot_token)
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.request(
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HTTPXRequest(
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connection_pool_size=application_config.connection_pool_size,
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proxy_url=application_config.proxy_url,
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read_timeout=application_config.read_timeout,
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write_timeout=application_config.write_timeout,
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connect_timeout=application_config.connect_timeout,
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pool_timeout=application_config.pool_timeout,
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)
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)
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.rate_limiter(RateLimiter())
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.build()
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)
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web_server = Server(
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uvicorn.Config(
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app=FastAPI(debug=application_config.debug),
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port=application_config.webserver.port,
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host=application_config.webserver.host,
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log_config=None,
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)
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)
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return cls(managers, telegram, web_server)
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@property
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def running(self) -> bool:
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"""bot 是否正在运行"""
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with self._lock:
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return self._running
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@property
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def web_app(self) -> FastAPI:
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"""fastapi app"""
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return self.web_server.config.app
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@property
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def bot(self) -> Optional[Bot]:
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return self.telegram.bot
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@property
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def job_queue(self) -> Optional[JobQueue]:
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return self.telegram.job_queue
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async def _on_startup(self) -> None:
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for func in self._startup_funcs:
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await self.managers.executor(func, block=getattr(func, "block", False))
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async def _on_shutdown(self) -> None:
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for func in self._shutdown_funcs:
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await self.managers.executor(func, block=getattr(func, "block", False))
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async def initialize(self):
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"""BOT 初始化"""
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self.telegram.add_handler(LimiterHandler(limit_time=10), group=-1) # 启用入口洪水限制
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await self.managers.start_dependency() # 启动基础服务
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await self.managers.init_components() # 实例化组件
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await self.managers.start_services() # 启动其他服务
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await self.managers.install_plugins() # 安装插件
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async def shutdown(self):
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"""BOT 关闭"""
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await self.managers.uninstall_plugins() # 卸载插件
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await self.managers.stop_services() # 终止其他服务
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await self.managers.stop_dependency() # 终止基础服务
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async def start(self) -> None:
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"""启动 BOT"""
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logger.info("正在启动 BOT 中...")
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def error_callback(exc: TelegramError) -> None:
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"""错误信息回调"""
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self.telegram.create_task(self.telegram.process_error(error=exc, update=None))
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await self.telegram.initialize()
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logger.info("[blue]Telegram[/] 初始化成功", extra={"markup": True})
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if application_config.webserver.enable: # 如果使用 web app
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server_config = self.web_server.config
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server_config.setup_event_loop()
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if not server_config.loaded:
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server_config.load()
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self.web_server.lifespan = server_config.lifespan_class(server_config)
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try:
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await self.web_server.startup()
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except OSError as e:
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if e.errno == 10048:
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logger.error("Web Server 端口被占用：%s", e)
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logger.error("Web Server 启动失败，正在退出")
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raise SystemExit from None
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if self.web_server.should_exit:
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logger.error("Web Server 启动失败，正在退出")
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raise SystemExit from None
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logger.success("Web Server 启动成功")
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self._web_server_task = asyncio.create_task(self.web_server.main_loop())
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for _ in range(5): # 连接至 telegram 服务器
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try:
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await self.telegram.updater.start_polling(
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error_callback=error_callback, allowed_updates=Update.ALL_TYPES
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)
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break
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except TimedOut:
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logger.warning("连接至 [blue]telegram[/] 服务器失败，正在重试", extra={"markup": True})
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continue
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except NetworkError as e:
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logger.exception()
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if isinstance(e, SSLZeroReturnError):
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logger.error("代理服务出现异常, 请检查您的代理服务是否配置成功.")
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else:
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logger.error("网络连接出现问题, 请检查您的网络状况.")
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raise SystemExit from e
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await self.initialize()
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logger.success("BOT 初始化成功")
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logger.debug("BOT 开始启动")
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await self._on_startup()
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await self.telegram.start()
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self._running = True
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logger.success("BOT 启动成功")
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def stop_signal_handler(self, signum: int):
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"""终止信号处理"""
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signals = {k: v for v, k in signal.__dict__.items() if v.startswith("SIG") and not v.startswith("SIG_")}
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logger.debug("接收到了终止信号 %s 正在退出...", signals[signum])
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if self._web_server_task:
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self._web_server_task.cancel()
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async def idle(self) -> None:
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"""在接收到中止信号之前，堵塞loop"""
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task = None
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def stop_handler(signum: int, _: "FrameType") -> None:
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self.stop_signal_handler(signum)
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task.cancel()
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for s in (SIGINT, SIGTERM, SIGABRT):
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signal_func(s, stop_handler)
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while True:
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task = asyncio.create_task(asyncio.sleep(600))
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try:
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await task
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except asyncio.CancelledError:
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break
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async def stop(self) -> None:
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"""关闭"""
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logger.info("BOT 正在关闭")
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self._running = False
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await self._on_shutdown()
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if self.telegram.updater.running:
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await self.telegram.updater.stop()
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await self.shutdown()
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if self.telegram.running:
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await self.telegram.stop()
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await self.telegram.shutdown()
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if self.web_server is not None:
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try:
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await self.web_server.shutdown()
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logger.info("Web Server 已经关闭")
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except AttributeError:
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pass
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logger.success("BOT 关闭成功")
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def launch(self) -> None:
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"""启动"""
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loop = asyncio.get_event_loop()
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try:
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loop.run_until_complete(self.start())
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loop.run_until_complete(self.idle())
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except (SystemExit, KeyboardInterrupt) as exc:
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logger.debug("接收到了终止信号，BOT 即将关闭", exc_info=exc) # 接收到了终止信号
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except NetworkError as e:
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if isinstance(e, SSLZeroReturnError):
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logger.critical("代理服务出现异常, 请检查您的代理服务是否配置成功.")
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else:
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logger.critical("网络连接出现问题, 请检查您的网络状况.")
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except Exception as e:
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logger.critical("遇到了未知错误: %s", {type(e)}, exc_info=e)
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finally:
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loop.run_until_complete(self.stop())
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if application_config.reload:
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raise SystemExit from None
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def on_startup(self, func: Callable[P, R]) -> Callable[P, R]:
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"""注册一个在 BOT 启动时执行的函数"""
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if func not in self._startup_funcs:
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self._startup_funcs.append(func)
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# noinspection PyTypeChecker
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@wraps(func, assigned=WRAPPER_ASSIGNMENTS)
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async def wrapper(*args: P.args, **kwargs: P.kwargs) -> R:
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return func(*args, **kwargs)
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return wrapper
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def on_shutdown(self, func: Callable[P, R]) -> Callable[P, R]:
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"""注册一个在 BOT 停止时执行的函数"""
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if func not in self._shutdown_funcs:
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self._shutdown_funcs.append(func)
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# noinspection PyTypeChecker
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@wraps(func, assigned=WRAPPER_ASSIGNMENTS)
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async def wrapper(*args: P.args, **kwargs: P.kwargs) -> R:
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return func(*args, **kwargs)
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return wrapper
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