mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-11-24 09:05:04 +08:00
150 lines
4.6 KiB
Python
150 lines
4.6 KiB
Python
"""
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"""
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import signal
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import asyncio
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from typing import Set, Union, Callable, Awaitable, DefaultDict
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import aiohttp
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from nonebot.log import logger
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from nonebot.adapters import Bot
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from nonebot.typing import overrides
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from nonebot.config import Env, Config
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from nonebot.exception import SetupFailed
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from nonebot.drivers import ForwardDriver, HTTPConnection, HTTPRequest, WebSocket
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STARTUP_FUNC = Callable[[], Awaitable[None]]
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SHUTDOWN_FUNC = Callable[[], Awaitable[None]]
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AVAILABLE_REQUEST = Union[HTTPRequest, WebSocket]
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class Driver(ForwardDriver):
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def __init__(self, env: Env, config: Config):
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super().__init__(env, config)
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self.startup_funcs: Set[STARTUP_FUNC] = set()
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self.shutdown_funcs: Set[SHUTDOWN_FUNC] = set()
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self.requests: DefaultDict[str,
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Set[AVAILABLE_REQUEST]] = DefaultDict(set)
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@property
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@overrides(ForwardDriver)
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def type(self) -> str:
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"""驱动名称: ``aiohttp``"""
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return "aiohttp"
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@property
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@overrides(ForwardDriver)
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def logger(self):
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return logger
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@overrides(ForwardDriver)
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def on_startup(self, func: Callable) -> Callable:
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self.startup_funcs.add(func)
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return func
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@overrides(ForwardDriver)
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def on_shutdown(self, func: Callable) -> Callable:
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self.shutdown_funcs.add(func)
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return func
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@overrides(ForwardDriver)
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def setup(self, adapter: str, request: HTTPConnection) -> None:
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if not isinstance(request, (HTTPRequest, WebSocket)):
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raise TypeError(f"Request Type {type(request)!r} is not supported!")
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self.requests[adapter].add(request)
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@overrides(ForwardDriver)
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def run(self, *args, **kwargs):
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loop = asyncio.get_event_loop()
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signals = (signal.SIGHUP, signal.SIGTERM, signal.SIGINT)
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for s in signals:
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loop.add_signal_handler(
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s,
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lambda s=s: asyncio.create_task(self.shutdown(loop, signal=s)))
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try:
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asyncio.create_task(self.startup())
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loop.run_forever()
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finally:
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loop.close()
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async def startup(self):
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setups = []
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loop = asyncio.get_event_loop()
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for adapter, requests in self.requests.items():
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for request in requests:
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if isinstance(request, HTTPRequest):
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setups.append(self._http_setup(adapter, request))
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else:
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setups.append(self._ws_setup(adapter, request))
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try:
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await asyncio.gather(*setups)
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except Exception as e:
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logger.opt(
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colors=True,
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exception=e).error("Application startup failed. Exiting.")
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asyncio.create_task(self.shutdown(loop))
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return
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# run startup
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cors = [startup() for startup in self.startup_funcs]
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if cors:
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try:
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await asyncio.gather(*cors)
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except Exception as e:
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logger.opt(colors=True, exception=e).error(
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"<r><bg #f8bbd0>Error when running startup function. "
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"Ignored!</bg #f8bbd0></r>")
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async def shutdown(self,
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loop: asyncio.AbstractEventLoop,
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signal: signal.Signals = None):
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# TODO: shutdown
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# run shutdown
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cors = [shutdown() for shutdown in self.shutdown_funcs]
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if cors:
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try:
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await asyncio.gather(*cors)
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except Exception as e:
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logger.opt(colors=True, exception=e).error(
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"<r><bg #f8bbd0>Error when running shutdown function. "
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"Ignored!</bg #f8bbd0></r>")
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tasks = [
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t for t in asyncio.all_tasks() if t is not asyncio.current_task()
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]
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for task in tasks:
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task.cancel()
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await asyncio.gather(*tasks, return_exceptions=True)
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loop.stop()
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async def _http_setup(self, adapter: str, request: HTTPRequest):
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BotClass = self._adapters[adapter]
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self_id, _ = await BotClass.check_permission(self, request)
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if not self_id:
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raise SetupFailed("Bot self_id get failed")
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bot = BotClass(self_id, request)
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self._bot_connect(bot)
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asyncio.create_task(self._http_loop(bot, request))
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async def _ws_setup(self, adapter: str, request: WebSocket):
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...
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async def _http_loop(self, bot: Bot, request: HTTPRequest):
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# TODO: main loop for HTTP long polling
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try:
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while True:
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...
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# include asyncio.CancelledError
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finally:
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self._bot_disconnect(bot)
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