mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-11-24 17:15:05 +08:00
431 lines
16 KiB
Python
431 lines
16 KiB
Python
"""
|
|
AIOHTTP 驱动适配
|
|
================
|
|
|
|
本驱动仅支持客户端连接
|
|
"""
|
|
|
|
import signal
|
|
import asyncio
|
|
import threading
|
|
from dataclasses import dataclass
|
|
from typing import Set, List, cast, Union, Optional, Callable, Awaitable
|
|
|
|
import aiohttp
|
|
from yarl import URL
|
|
|
|
from nonebot.log import logger
|
|
from nonebot.adapters import Bot
|
|
from nonebot.utils import escape_tag
|
|
from nonebot.typing import overrides
|
|
from nonebot.config import Env, Config
|
|
from nonebot.drivers import (ForwardDriver, HTTPPollingSetup, WebSocketSetup,
|
|
HTTPRequest, WebSocket as BaseWebSocket)
|
|
|
|
STARTUP_FUNC = Callable[[], Awaitable[None]]
|
|
SHUTDOWN_FUNC = Callable[[], Awaitable[None]]
|
|
HTTPPOLLING_SETUP = Union[HTTPPollingSetup,
|
|
Callable[[], Awaitable[HTTPPollingSetup]]]
|
|
WEBSOCKET_SETUP = Union[WebSocketSetup, Callable[[], Awaitable[WebSocketSetup]]]
|
|
HANDLED_SIGNALS = (
|
|
signal.SIGINT, # Unix signal 2. Sent by Ctrl+C.
|
|
signal.SIGTERM, # Unix signal 15. Sent by `kill <pid>`.
|
|
)
|
|
|
|
|
|
class Driver(ForwardDriver):
|
|
"""
|
|
AIOHTTP 驱动框架
|
|
"""
|
|
|
|
def __init__(self, env: Env, config: Config):
|
|
super().__init__(env, config)
|
|
self.startup_funcs: Set[STARTUP_FUNC] = set()
|
|
self.shutdown_funcs: Set[SHUTDOWN_FUNC] = set()
|
|
self.http_pollings: List[HTTPPOLLING_SETUP] = []
|
|
self.websockets: List[WEBSOCKET_SETUP] = []
|
|
self.connections: List[asyncio.Task] = []
|
|
self.should_exit: asyncio.Event = asyncio.Event()
|
|
self.force_exit: bool = False
|
|
|
|
@property
|
|
@overrides(ForwardDriver)
|
|
def type(self) -> str:
|
|
"""驱动名称: ``aiohttp``"""
|
|
return "aiohttp"
|
|
|
|
@property
|
|
@overrides(ForwardDriver)
|
|
def logger(self):
|
|
"""aiohttp driver 使用的 logger"""
|
|
return logger
|
|
|
|
@overrides(ForwardDriver)
|
|
def on_startup(self, func: STARTUP_FUNC) -> STARTUP_FUNC:
|
|
"""
|
|
:说明:
|
|
|
|
注册一个启动时执行的函数
|
|
|
|
:参数:
|
|
|
|
* ``func: Callable[[], Awaitable[None]]``
|
|
"""
|
|
self.startup_funcs.add(func)
|
|
return func
|
|
|
|
@overrides(ForwardDriver)
|
|
def on_shutdown(self, func: SHUTDOWN_FUNC) -> SHUTDOWN_FUNC:
|
|
"""
|
|
:说明:
|
|
|
|
注册一个停止时执行的函数
|
|
|
|
:参数:
|
|
|
|
* ``func: Callable[[], Awaitable[None]]``
|
|
"""
|
|
self.shutdown_funcs.add(func)
|
|
return func
|
|
|
|
@overrides(ForwardDriver)
|
|
def setup_http_polling(self, setup: HTTPPOLLING_SETUP) -> None:
|
|
"""
|
|
:说明:
|
|
|
|
注册一个 HTTP 轮询连接，如果传入一个函数，则该函数会在每次连接时被调用
|
|
|
|
:参数:
|
|
|
|
* ``setup: Union[HTTPPollingSetup, Callable[[], Awaitable[HTTPPollingSetup]]]``
|
|
"""
|
|
self.http_pollings.append(setup)
|
|
|
|
@overrides(ForwardDriver)
|
|
def setup_websocket(self, setup: WEBSOCKET_SETUP) -> None:
|
|
"""
|
|
:说明:
|
|
|
|
注册一个 WebSocket 连接，如果传入一个函数，则该函数会在每次重连时被调用
|
|
|
|
:参数:
|
|
|
|
* ``setup: Union[WebSocketSetup, Callable[[], Awaitable[WebSocketSetup]]]``
|
|
"""
|
|
self.websockets.append(setup)
|
|
|
|
@overrides(ForwardDriver)
|
|
def run(self, *args, **kwargs):
|
|
"""启动 aiohttp driver"""
|
|
super().run(*args, **kwargs)
|
|
loop = asyncio.get_event_loop()
|
|
loop.run_until_complete(self.serve())
|
|
|
|
async def serve(self):
|
|
self.install_signal_handlers()
|
|
await self.startup()
|
|
if self.should_exit.is_set():
|
|
return
|
|
await self.main_loop()
|
|
await self.shutdown()
|
|
|
|
async def startup(self):
|
|
for setup in self.http_pollings:
|
|
self.connections.append(asyncio.create_task(self._http_loop(setup)))
|
|
for setup in self.websockets:
|
|
self.connections.append(asyncio.create_task(self._ws_loop(setup)))
|
|
|
|
logger.info("Application startup completed.")
|
|
|
|
# run startup
|
|
cors = [startup() for startup in self.startup_funcs]
|
|
if cors:
|
|
try:
|
|
await asyncio.gather(*cors)
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
"<r><bg #f8bbd0>Error when running startup function. "
|
|
"Ignored!</bg #f8bbd0></r>")
|
|
|
|
async def main_loop(self):
|
|
await self.should_exit.wait()
|
|
|
|
async def shutdown(self):
|
|
# run shutdown
|
|
cors = [shutdown() for shutdown in self.shutdown_funcs]
|
|
if cors:
|
|
try:
|
|
await asyncio.gather(*cors)
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
"<r><bg #f8bbd0>Error when running shutdown function. "
|
|
"Ignored!</bg #f8bbd0></r>")
|
|
|
|
for task in self.connections:
|
|
if not task.done():
|
|
task.cancel()
|
|
await asyncio.sleep(0.1)
|
|
|
|
tasks = [
|
|
t for t in asyncio.all_tasks() if t is not asyncio.current_task()
|
|
]
|
|
if tasks and not self.force_exit:
|
|
logger.info("Waiting for tasks to finish. (CTRL+C to force quit)")
|
|
while tasks and not self.force_exit:
|
|
await asyncio.sleep(0.1)
|
|
tasks = [
|
|
t for t in asyncio.all_tasks()
|
|
if t is not asyncio.current_task()
|
|
]
|
|
|
|
for task in tasks:
|
|
task.cancel()
|
|
|
|
await asyncio.gather(*tasks, return_exceptions=True)
|
|
|
|
loop = asyncio.get_event_loop()
|
|
loop.stop()
|
|
|
|
def install_signal_handlers(self) -> None:
|
|
if threading.current_thread() is not threading.main_thread():
|
|
# Signals can only be listened to from the main thread.
|
|
return
|
|
|
|
loop = asyncio.get_event_loop()
|
|
|
|
try:
|
|
for sig in HANDLED_SIGNALS:
|
|
loop.add_signal_handler(sig, self.handle_exit, sig, None)
|
|
except NotImplementedError:
|
|
# Windows
|
|
for sig in HANDLED_SIGNALS:
|
|
signal.signal(sig, self.handle_exit)
|
|
|
|
def handle_exit(self, sig, frame):
|
|
if self.should_exit.is_set():
|
|
self.force_exit = True
|
|
else:
|
|
self.should_exit.set()
|
|
|
|
async def _http_loop(self, setup: HTTPPOLLING_SETUP):
|
|
|
|
async def _build_request(
|
|
setup: HTTPPollingSetup) -> Optional[HTTPRequest]:
|
|
url = URL(setup.url)
|
|
if not url.is_absolute() or not url.host:
|
|
logger.opt(colors=True).error(
|
|
f"<r><bg #f8bbd0>Error parsing url {escape_tag(str(url))}</bg #f8bbd0></r>"
|
|
)
|
|
return
|
|
host = f"{url.host}:{url.port}" if url.port else url.host
|
|
return HTTPRequest(setup.http_version, url.scheme, url.path,
|
|
url.raw_query_string.encode("latin-1"), {
|
|
**setup.headers, "host": host
|
|
}, setup.method, setup.body)
|
|
|
|
bot: Optional[Bot] = None
|
|
request: Optional[HTTPRequest] = None
|
|
setup_: Optional[HTTPPollingSetup] = None
|
|
|
|
logger.opt(colors=True).info(
|
|
f"Start http polling for <y>{escape_tag(setup.adapter.upper())} "
|
|
f"Bot {escape_tag(setup.self_id)}</y>")
|
|
|
|
try:
|
|
async with aiohttp.ClientSession() as session:
|
|
while not self.should_exit.is_set():
|
|
|
|
try:
|
|
if callable(setup):
|
|
setup_ = await setup()
|
|
else:
|
|
setup_ = setup
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
f"<r><bg #f8bbd0>Error while parsing setup {setup!r}.</bg #f8bbd0></r>"
|
|
)
|
|
await asyncio.sleep(3)
|
|
continue
|
|
|
|
if not bot:
|
|
request = await _build_request(setup_)
|
|
if not request:
|
|
return
|
|
|
|
BotClass = self._adapters[setup.adapter]
|
|
bot = BotClass(setup.self_id, request)
|
|
self._bot_connect(bot)
|
|
elif callable(setup):
|
|
request = await _build_request(setup_)
|
|
if not request:
|
|
await asyncio.sleep(setup_.poll_interval)
|
|
continue
|
|
bot.request = request
|
|
|
|
request = cast(HTTPRequest, request)
|
|
setup_ = cast(HTTPPollingSetup, setup_)
|
|
|
|
headers = request.headers
|
|
timeout = aiohttp.ClientTimeout(30)
|
|
version: aiohttp.HttpVersion
|
|
if request.http_version == "1.0":
|
|
version = aiohttp.HttpVersion10
|
|
elif request.http_version == "1.1":
|
|
version = aiohttp.HttpVersion11
|
|
else:
|
|
logger.opt(colors=True).error(
|
|
"<r><bg #f8bbd0>Unsupported HTTP Version "
|
|
f"{escape_tag(request.http_version)}</bg #f8bbd0></r>"
|
|
)
|
|
return
|
|
|
|
logger.debug(
|
|
f"Bot {setup_.self_id} from adapter {setup_.adapter} request {setup_.url}"
|
|
)
|
|
|
|
try:
|
|
async with session.request(request.method,
|
|
setup_.url,
|
|
data=request.body,
|
|
headers=headers,
|
|
timeout=timeout,
|
|
version=version) as response:
|
|
response.raise_for_status()
|
|
data = await response.read()
|
|
asyncio.create_task(bot.handle_message(data))
|
|
except aiohttp.ClientResponseError as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
f"<r><bg #f8bbd0>Error occurred while requesting {escape_tag(setup_.url)}. "
|
|
"Try to reconnect...</bg #f8bbd0></r>")
|
|
|
|
await asyncio.sleep(setup_.poll_interval)
|
|
|
|
except asyncio.CancelledError:
|
|
pass
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
"<r><bg #f8bbd0>Unexpected exception occurred "
|
|
"while http polling</bg #f8bbd0></r>")
|
|
finally:
|
|
if bot:
|
|
self._bot_disconnect(bot)
|
|
|
|
async def _ws_loop(self, setup: WEBSOCKET_SETUP):
|
|
bot: Optional[Bot] = None
|
|
|
|
try:
|
|
async with aiohttp.ClientSession() as session:
|
|
while True:
|
|
|
|
try:
|
|
if callable(setup):
|
|
setup_ = await setup()
|
|
else:
|
|
setup_ = setup
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
f"<r><bg #f8bbd0>Error while parsing setup {setup!r}.</bg #f8bbd0></r>"
|
|
)
|
|
await asyncio.sleep(3)
|
|
continue
|
|
|
|
url = URL(setup_.url)
|
|
if not url.is_absolute() or not url.host:
|
|
logger.opt(colors=True).error(
|
|
f"<r><bg #f8bbd0>Error parsing url {escape_tag(str(url))}</bg #f8bbd0></r>"
|
|
)
|
|
await asyncio.sleep(setup_.reconnect_interval)
|
|
continue
|
|
|
|
host = f"{url.host}:{url.port}" if url.port else url.host
|
|
headers = {**setup_.headers, "host": host}
|
|
|
|
logger.debug(
|
|
f"Bot {setup_.self_id} from adapter {setup_.adapter} connecting to {url}"
|
|
)
|
|
try:
|
|
async with session.ws_connect(url,
|
|
headers=headers,
|
|
timeout=30.) as ws:
|
|
logger.opt(colors=True).info(
|
|
f"WebSocket Connection to <y>{escape_tag(setup_.adapter.upper())} "
|
|
f"Bot {escape_tag(setup_.self_id)}</y> succeeded!"
|
|
)
|
|
request = WebSocket(
|
|
"1.1", url.scheme, url.path,
|
|
url.raw_query_string.encode("latin-1"), headers,
|
|
ws)
|
|
|
|
BotClass = self._adapters[setup_.adapter]
|
|
bot = BotClass(setup_.self_id, request)
|
|
self._bot_connect(bot)
|
|
while not self.should_exit.is_set():
|
|
msg = await ws.receive()
|
|
if msg.type == aiohttp.WSMsgType.text:
|
|
asyncio.create_task(
|
|
bot.handle_message(msg.data.encode()))
|
|
elif msg.type == aiohttp.WSMsgType.binary:
|
|
asyncio.create_task(
|
|
bot.handle_message(msg.data))
|
|
elif msg.type == aiohttp.WSMsgType.error:
|
|
logger.opt(colors=True).error(
|
|
"<r><bg #f8bbd0>Error while handling websocket frame. "
|
|
"Try to reconnect...</bg #f8bbd0></r>")
|
|
break
|
|
else:
|
|
logger.opt(colors=True).error(
|
|
"<r><bg #f8bbd0>WebSocket connection closed by peer. "
|
|
"Try to reconnect...</bg #f8bbd0></r>")
|
|
break
|
|
except (aiohttp.ClientResponseError,
|
|
aiohttp.ClientConnectionError) as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
f"<r><bg #f8bbd0>Error while connecting to {escape_tag(str(url))}. "
|
|
"Try to reconnect...</bg #f8bbd0></r>")
|
|
finally:
|
|
if bot:
|
|
self._bot_disconnect(bot)
|
|
bot = None
|
|
await asyncio.sleep(setup_.reconnect_interval)
|
|
|
|
except asyncio.CancelledError:
|
|
pass
|
|
except Exception as e:
|
|
logger.opt(colors=True, exception=e).error(
|
|
"<r><bg #f8bbd0>Unexpected exception occurred "
|
|
"while websocket loop</bg #f8bbd0></r>")
|
|
|
|
|
|
@dataclass
|
|
class WebSocket(BaseWebSocket):
|
|
websocket: aiohttp.ClientWebSocketResponse = None # type: ignore
|
|
|
|
@property
|
|
@overrides(BaseWebSocket)
|
|
def closed(self):
|
|
return self.websocket.closed
|
|
|
|
@overrides(BaseWebSocket)
|
|
async def accept(self):
|
|
raise NotImplementedError
|
|
|
|
@overrides(BaseWebSocket)
|
|
async def close(self, code: int = 1000):
|
|
await self.websocket.close(code=code)
|
|
|
|
@overrides(BaseWebSocket)
|
|
async def receive(self) -> str:
|
|
return await self.websocket.receive_str()
|
|
|
|
@overrides(BaseWebSocket)
|
|
async def receive_bytes(self) -> bytes:
|
|
return await self.websocket.receive_bytes()
|
|
|
|
@overrides(BaseWebSocket)
|
|
async def send(self, data: str) -> None:
|
|
await self.websocket.send_str(data)
|
|
|
|
@overrides(BaseWebSocket)
|
|
async def send_bytes(self, data: bytes) -> None:
|
|
await self.websocket.send_bytes(data)
|