mirror of
https://github.com/nonebot/nonebot2.git
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108 lines
3.1 KiB
Python
108 lines
3.1 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
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import aiohttp
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from nonebot.log import logger
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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.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: Set[AVAILABLE_REQUEST] = 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, 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.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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# TODO: build request
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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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