mirror of
https://github.com/nonebot/nonebot2.git
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267 lines
8.3 KiB
Python
267 lines
8.3 KiB
Python
"""
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Quart 驱动适配
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================
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后端使用方法请参考: `Quart 文档`_
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.. _Quart 文档:
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https://pgjones.gitlab.io/quart/index.html
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"""
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import asyncio
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from dataclasses import dataclass
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from typing import List, TypeVar, Callable, Optional, Coroutine
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import uvicorn
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from pydantic import BaseSettings
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from nonebot.config import Env
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from nonebot.log import logger
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from nonebot.typing import overrides
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from nonebot.utils import escape_tag
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from nonebot.config import Config as NoneBotConfig
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from nonebot.drivers import HTTPRequest, ReverseDriver
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from nonebot.drivers import WebSocket as BaseWebSocket
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try:
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from quart import request as _request
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import werkzeug.exceptions as exceptions
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from quart import websocket as _websocket
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from quart import Quart, Request, Response
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from quart import Websocket as QuartWebSocket
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except ImportError:
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raise ValueError(
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'Please install Quart by using `pip install nonebot2[quart]`')
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_AsyncCallable = TypeVar("_AsyncCallable", bound=Callable[..., Coroutine])
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class Config(BaseSettings):
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"""
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Quart 驱动框架设置
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"""
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quart_reload_dirs: List[str] = []
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"""
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:类型:
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``List[str]``
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:说明:
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``debug`` 模式下重载监控文件夹列表，默认为 uvicorn 默认值
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"""
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class Config:
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extra = "ignore"
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class Driver(ReverseDriver):
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"""
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Quart 驱动框架
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:上报地址:
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* ``/{adapter name}/http``: HTTP POST 上报
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* ``/{adapter name}/ws``: WebSocket 上报
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"""
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def __init__(self, env: Env, config: NoneBotConfig):
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super().__init__(env, config)
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self.quart_config = Config(**config.dict())
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self._server_app = Quart(self.__class__.__qualname__)
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self._server_app.add_url_rule("/<adapter>/http",
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methods=["POST"],
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view_func=self._handle_http)
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self._server_app.add_websocket("/<adapter>/ws",
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view_func=self._handle_ws_reverse)
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@property
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@overrides(ReverseDriver)
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def type(self) -> str:
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"""驱动名称: ``quart``"""
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return "quart"
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@property
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@overrides(ReverseDriver)
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def server_app(self) -> Quart:
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"""``Quart`` 对象"""
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return self._server_app
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@property
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@overrides(ReverseDriver)
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def asgi(self):
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"""``Quart`` 对象"""
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return self._server_app
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@property
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@overrides(ReverseDriver)
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def logger(self):
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"""Quart 使用的 logger"""
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return self._server_app.logger
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@overrides(ReverseDriver)
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def on_startup(self, func: _AsyncCallable) -> _AsyncCallable:
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"""参考文档: `Startup and Shutdown`_
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.. _Startup and Shutdown:
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https://pgjones.gitlab.io/quart/how_to_guides/startup_shutdown.html
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"""
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return self.server_app.before_serving(func) # type: ignore
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@overrides(ReverseDriver)
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def on_shutdown(self, func: _AsyncCallable) -> _AsyncCallable:
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"""参考文档: `Startup and Shutdown`_"""
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return self.server_app.after_serving(func) # type: ignore
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@overrides(ReverseDriver)
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def run(self,
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host: Optional[str] = None,
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port: Optional[int] = None,
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*,
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app: Optional[str] = None,
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**kwargs):
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"""使用 ``uvicorn`` 启动 Quart"""
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super().run(host, port, app, **kwargs)
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LOGGING_CONFIG = {
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"version": 1,
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"disable_existing_loggers": False,
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"handlers": {
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"default": {
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"class": "nonebot.log.LoguruHandler",
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},
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},
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"loggers": {
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"uvicorn.error": {
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"handlers": ["default"],
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"level": "INFO"
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},
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"uvicorn.access": {
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"handlers": ["default"],
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"level": "INFO",
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},
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},
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}
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uvicorn.run(
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app or self.server_app, # type: ignore
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host=host or str(self.config.host),
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port=port or self.config.port,
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reload=bool(app) and self.config.debug,
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reload_dirs=self.quart_config.quart_reload_dirs or None,
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debug=self.config.debug,
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log_config=LOGGING_CONFIG,
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**kwargs)
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async def _handle_http(self, adapter: str):
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request: Request = _request
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data: bytes = await request.get_data() # type: ignore
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if adapter not in self._adapters:
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logger.warning(f'Unknown adapter {adapter}. '
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'Please register the adapter before use.')
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raise exceptions.NotFound()
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BotClass = self._adapters[adapter]
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http_request = HTTPRequest(request.http_version, request.scheme,
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request.path, request.query_string,
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dict(request.headers), request.method, data)
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self_id, response = await BotClass.check_permission(self, http_request)
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if not self_id:
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raise exceptions.Unauthorized(
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description=(response and response.body or b"").decode())
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if self_id in self._clients:
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logger.warning("There's already a reverse websocket connection,"
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"so the event may be handled twice.")
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bot = BotClass(self_id, http_request)
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asyncio.create_task(bot.handle_message(data))
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return Response(response and response.body or "",
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response and response.status or 200)
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async def _handle_ws_reverse(self, adapter: str):
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websocket: QuartWebSocket = _websocket
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ws = WebSocket(websocket.http_version, websocket.scheme,
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websocket.path, websocket.query_string,
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dict(websocket.headers), websocket)
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if adapter not in self._adapters:
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logger.warning(
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f'Unknown adapter {adapter}. Please register the adapter before use.'
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)
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raise exceptions.NotFound()
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BotClass = self._adapters[adapter]
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self_id, response = await BotClass.check_permission(self, ws)
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if not self_id:
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raise exceptions.Unauthorized(
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description=(response and response.body or b"").decode())
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if self_id in self._clients:
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logger.opt(colors=True).warning(
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"There's already a websocket connection, "
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f"<y>{escape_tag(adapter.upper())} Bot {escape_tag(self_id)}</y> ignored."
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)
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raise exceptions.Forbidden(description='Client already exists.')
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bot = BotClass(self_id, ws)
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await ws.accept()
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logger.opt(colors=True).info(
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f"WebSocket Connection from <y>{escape_tag(adapter.upper())} "
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f"Bot {escape_tag(self_id)}</y> Accepted!")
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self._bot_connect(bot)
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try:
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while not ws.closed:
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try:
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data = await ws.receive()
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except asyncio.CancelledError:
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logger.warning("WebSocket disconnected by peer.")
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break
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except Exception as e:
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logger.opt(exception=e).error(
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"Error when receiving data from websocket.")
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break
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asyncio.create_task(bot.handle_message(data.encode()))
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finally:
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self._bot_disconnect(bot)
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@dataclass
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class WebSocket(BaseWebSocket):
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websocket: QuartWebSocket = None # type: ignore
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@property
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@overrides(BaseWebSocket)
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def closed(self):
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# FIXME
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return False
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@overrides(BaseWebSocket)
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async def accept(self):
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await self.websocket.accept()
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@overrides(BaseWebSocket)
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async def close(self):
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# FIXME
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pass
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@overrides(BaseWebSocket)
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async def receive(self) -> str:
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return await self.websocket.receive() # type: ignore
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@overrides(BaseWebSocket)
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async def receive_bytes(self) -> bytes:
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return await self.websocket.receive() # type: ignore
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@overrides(BaseWebSocket)
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async def send(self, data: str):
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await self.websocket.send(data)
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@overrides(BaseWebSocket)
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async def send_bytes(self, data: bytes):
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await self.websocket.send(data)
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