nonebot2/nonebot/drivers/quart.py
2022-08-04 14:14:50 +08:00

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"""[Quart](https://pgjones.gitlab.io/quart/index.html) 驱动适配
```bash
nb driver install quart
# 或者
pip install nonebot2[quart]
```
:::tip 提示
本驱动仅支持服务端连接
:::
FrontMatter:
sidebar_position: 5
description: nonebot.drivers.quart 模块
"""
import asyncio
from functools import wraps
from typing import List, Tuple, Union, TypeVar, Callable, Optional, Coroutine
import uvicorn
from pydantic import BaseSettings
from nonebot.config import Env
from nonebot.typing import overrides
from nonebot.exception import WebSocketClosed
from nonebot.internal.driver import FileTypes
from nonebot.config import Config as NoneBotConfig
from nonebot.drivers import Request as BaseRequest
from nonebot.drivers import WebSocket as BaseWebSocket
from nonebot.drivers import ReverseDriver, HTTPServerSetup, WebSocketServerSetup
try:
from quart import request as _request
from quart import websocket as _websocket
from quart import Quart, Request, Response
from quart.datastructures import FileStorage
from quart import Websocket as QuartWebSocket
except ImportError:
raise ImportError(
"Please install Quart by using `pip install nonebot2[quart]`"
) from None
_AsyncCallable = TypeVar("_AsyncCallable", bound=Callable[..., Coroutine])
def catch_closed(func):
@wraps(func)
async def decorator(*args, **kwargs):
try:
return await func(*args, **kwargs)
except asyncio.CancelledError:
raise WebSocketClosed(1000)
return decorator
class Config(BaseSettings):
"""Quart 驱动框架设置"""
quart_reload: bool = False
"""开启/关闭冷重载"""
quart_reload_dirs: Optional[List[str]] = None
"""重载监控文件夹列表,默认为 uvicorn 默认值"""
quart_reload_delay: float = 0.25
"""重载延迟,默认为 uvicorn 默认值"""
quart_reload_includes: Optional[List[str]] = None
"""要监听的文件列表,支持 glob pattern默认为 uvicorn 默认值"""
quart_reload_excludes: Optional[List[str]] = None
"""不要监听的文件列表,支持 glob pattern默认为 uvicorn 默认值"""
class Config:
extra = "ignore"
class Driver(ReverseDriver):
"""Quart 驱动框架"""
def __init__(self, env: Env, config: NoneBotConfig):
super().__init__(env, config)
self.quart_config = Config(**config.dict())
self._server_app = Quart(self.__class__.__qualname__)
@property
@overrides(ReverseDriver)
def type(self) -> str:
"""驱动名称: `quart`"""
return "quart"
@property
@overrides(ReverseDriver)
def server_app(self) -> Quart:
"""`Quart` 对象"""
return self._server_app
@property
@overrides(ReverseDriver)
def asgi(self):
"""`Quart` 对象"""
return self._server_app
@property
@overrides(ReverseDriver)
def logger(self):
"""Quart 使用的 logger"""
return self._server_app.logger
@overrides(ReverseDriver)
def setup_http_server(self, setup: HTTPServerSetup):
async def _handle() -> Response:
return await self._handle_http(setup)
self._server_app.add_url_rule(
setup.path.path,
endpoint=setup.name,
methods=[setup.method],
view_func=_handle,
)
@overrides(ReverseDriver)
def setup_websocket_server(self, setup: WebSocketServerSetup) -> None:
async def _handle() -> None:
return await self._handle_ws(setup)
self._server_app.add_websocket(
setup.path.path,
endpoint=setup.name,
view_func=_handle,
)
@overrides(ReverseDriver)
def on_startup(self, func: _AsyncCallable) -> _AsyncCallable:
"""参考文档: [`Startup and Shutdown`](https://pgjones.gitlab.io/quart/how_to_guides/startup_shutdown.html)"""
return self.server_app.before_serving(func) # type: ignore
@overrides(ReverseDriver)
def on_shutdown(self, func: _AsyncCallable) -> _AsyncCallable:
"""参考文档: [`Startup and Shutdown`](https://pgjones.gitlab.io/quart/how_to_guides/startup_shutdown.html)"""
return self.server_app.after_serving(func) # type: ignore
@overrides(ReverseDriver)
def run(
self,
host: Optional[str] = None,
port: Optional[int] = None,
*,
app: Optional[str] = None,
**kwargs,
):
"""使用 `uvicorn` 启动 Quart"""
super().run(host, port, app, **kwargs)
LOGGING_CONFIG = {
"version": 1,
"disable_existing_loggers": False,
"handlers": {
"default": {
"class": "nonebot.log.LoguruHandler",
},
},
"loggers": {
"uvicorn.error": {"handlers": ["default"], "level": "INFO"},
"uvicorn.access": {
"handlers": ["default"],
"level": "INFO",
},
},
}
uvicorn.run(
app or self.server_app, # type: ignore
host=host or str(self.config.host),
port=port or self.config.port,
reload=self.quart_config.quart_reload,
reload_dirs=self.quart_config.quart_reload_dirs,
reload_delay=self.quart_config.quart_reload_delay,
reload_includes=self.quart_config.quart_reload_includes,
reload_excludes=self.quart_config.quart_reload_excludes,
log_config=LOGGING_CONFIG,
**kwargs,
)
async def _handle_http(self, setup: HTTPServerSetup) -> Response:
request: Request = _request
json = None
if request.is_json:
json = await request.get_json()
data = await request.form
files_dict = await request.files
files: List[Tuple[str, FileTypes]] = []
key: str
value: FileStorage
for key, value in files_dict.items():
files.append((key, (value.filename, value.stream, value.content_type)))
http_request = BaseRequest(
request.method,
request.url,
headers=list(request.headers.items()),
cookies=list(request.cookies.items()),
content=await request.get_data(
cache=False, as_text=False, parse_form_data=False
),
data=data or None,
json=json,
files=files or None,
version=request.http_version,
)
response = await setup.handle_func(http_request)
return Response(
response.content or "",
response.status_code or 200,
headers=dict(response.headers),
)
async def _handle_ws(self, setup: WebSocketServerSetup) -> None:
websocket: QuartWebSocket = _websocket
http_request = BaseRequest(
websocket.method,
websocket.url,
headers=list(websocket.headers.items()),
cookies=list(websocket.cookies.items()),
version=websocket.http_version,
)
ws = WebSocket(request=http_request, websocket=websocket)
await setup.handle_func(ws)
class WebSocket(BaseWebSocket):
"""Quart WebSocket Wrapper"""
def __init__(self, *, request: BaseRequest, websocket: QuartWebSocket):
super().__init__(request=request)
self.websocket = websocket
@property
@overrides(BaseWebSocket)
def closed(self):
# FIXME
return True
@overrides(BaseWebSocket)
async def accept(self):
await self.websocket.accept()
@overrides(BaseWebSocket)
async def close(self, code: int = 1000, reason: str = ""):
await self.websocket.close(code, reason)
@overrides(BaseWebSocket)
@catch_closed
async def receive(self) -> Union[str, bytes]:
return await self.websocket.receive()
@overrides(BaseWebSocket)
@catch_closed
async def receive_text(self) -> str:
msg = await self.websocket.receive()
if isinstance(msg, bytes):
raise TypeError("WebSocket received unexpected frame type: bytes")
return msg
@overrides(BaseWebSocket)
@catch_closed
async def receive_bytes(self) -> bytes:
msg = await self.websocket.receive()
if isinstance(msg, str):
raise TypeError("WebSocket received unexpected frame type: str")
return msg
@overrides(BaseWebSocket)
async def send_text(self, data: str):
await self.websocket.send(data)
@overrides(BaseWebSocket)
async def send_bytes(self, data: bytes):
await self.websocket.send(data)
__autodoc__ = {"catch_closed": False}