🚧 rewrite fastapi driver implementation

nonebot/drivers/__init__.py

@@ -13,7 +13,7 @@ from typing import TYPE_CHECKING, Any, Set, Dict, Type, Callable, Awaitable
 from nonebot.log import logger
 from nonebot.utils import escape_tag
 from nonebot.config import Env, Config
-from ._model import URL, Request, Response, WebSocket
+from ._model import URL, Request, Response, WebSocket, HTTPVersion
 from nonebot.typing import T_BotConnectionHook, T_BotDisconnectionHook
 
 if TYPE_CHECKING:

nonebot/drivers/_model.py

@@ -82,6 +82,7 @@ class Request:
         self.url = url
 
         # headers
+        self.headers: CIMultiDict[str]
         if headers is not None:
             self.headers = CIMultiDict(headers)
         else:
@@ -112,6 +113,7 @@ class Response:
         self.status_code = status_code
 
         # headers
+        self.headers: CIMultiDict[str]
         if headers is not None:
             self.headers = CIMultiDict(headers)
         else:
@@ -144,7 +146,7 @@ class WebSocket(abc.ABC):
         raise NotImplementedError
 
     @abc.abstractmethod
-    async def close(self, code: int):
+    async def close(self, code: int = 1000):
         """关闭 WebSocket 连接请求"""
         raise NotImplementedError
 

nonebot/drivers/fastapi.py

@@ -10,7 +10,6 @@ FastAPI 驱动适配
     https://fastapi.tiangolo.com/
 """
 
-import asyncio
 import logging
 from functools import partial
 from dataclasses import dataclass
@@ -20,23 +19,21 @@ import httpx
 import uvicorn
 from pydantic import BaseSettings
 from fastapi.responses import Response
-from starlette.websockets import WebSocketState
-from fastapi import Depends, FastAPI, Request, status
-from starlette.websockets import WebSocket as FastAPIWebSocket
+from fastapi import FastAPI, Request, status
+from starlette.websockets import WebSocket, WebSocketState
 from websockets.legacy.client import Connect, WebSocketClientProtocol
 
 from nonebot.config import Env
 from nonebot.typing import overrides
 from nonebot.utils import escape_tag
-from nonebot.drivers import WebSocket
 from nonebot.config import Config as NoneBotConfig
+from nonebot.drivers import Request as GenericRequest
 from nonebot.drivers import WebSocket as BaseWebSocket
+from nonebot.drivers import Response as GenericResponse
 from nonebot.drivers import (
-    HTTPRequest,
-    HTTPResponse,
+    HTTPVersion,
     ForwardDriver,
     ReverseDriver,
-    HTTPConnection,
     HTTPServerSetup,
     WebSocketServerSetup,
 )
@@ -173,26 +170,23 @@ class Driver(ReverseDriver):
 
     @overrides(ReverseDriver)
     def setup_http_server(self, setup: HTTPServerSetup):
-        def _get_handle_func():
-            return setup.handle_func
+        async def _handle(request: Request) -> Response:
+            return await self._handle_http(request, setup)
 
         self._server_app.add_api_route(
-            setup.path,
-            partial(self._handle_http, handle_func=Depends(_get_handle_func)),
+            setup.path.path,
+            _handle,
             methods=[setup.method],
         )
 
     @overrides(ReverseDriver)
     def setup_websocket_server(self, setup: WebSocketServerSetup) -> None:
-        def _get_handle_func():
-            return setup.handle_func
+        async def _handle(websocket: WebSocket):
+            await self._handle_ws(websocket, setup)
 
         self._server_app.add_api_websocket_route(
-            setup.path,
-            partial(
-                self._handle_ws,
-                handle_func=Depends(_get_handle_func),
-            ),
+            setup.path.path,
+            _handle,
         )
 
     @overrides(ReverseDriver)
@@ -251,36 +245,34 @@ class Driver(ReverseDriver):
     async def _handle_http(
         self,
         request: Request,
-        handle_func: Callable[[HTTPRequest], Awaitable[HTTPResponse]],
+        setup: HTTPServerSetup,
     ):
-        http_request = HTTPRequest(
-            request.scope["http_version"],
-            request.url.scheme,
-            request.url.path,
-            request.scope["query_string"],
-            dict(request.headers),
+        http_request = GenericRequest(
             request.method,
-            await request.body(),
+            str(request.url),
+            headers=request.headers.items(),
+            cookies=request.cookies,
+            content=await request.body(),
+            version=request.scope["http_version"],
         )
 
-        response = await handle_func(http_request)
-        return Response(response.body, response.status, response.headers)
+        response = await setup.handle_func(http_request)
+        return Response(response.content, response.status_code, dict(response.headers))
 
-    async def _handle_ws(
-        self,
-        websocket: FastAPIWebSocket,
-        handle_func: Callable[[WebSocket], Awaitable[Any]],
-    ):
-        ws = WebSocket(
-            websocket.scope.get("http_version", "1.1"),
-            websocket.url.scheme,
-            websocket.url.path,
-            websocket.scope["query_string"],
-            dict(websocket.headers),
-            websocket,
+    async def _handle_ws(self, websocket: WebSocket, setup: WebSocketServerSetup):
+        request = GenericRequest(
+            "GET",
+            str(websocket.url),
+            headers=websocket.headers.items(),
+            cookies=websocket.cookies,
+            version=websocket.scope["http_version"],
+        )
+        ws = FastAPIWebSocket(
+            request=request,
+            websocket=websocket,
         )
 
-        await handle_func(ws)
+        await setup.handle_func(ws)
 
 
 class FullDriver(ForwardDriver, Driver):
@@ -295,85 +287,127 @@ class FullDriver(ForwardDriver, Driver):
     """
 
     @property
-    @overrides(ForwardDriver)
+    @overrides(Driver)
     def type(self) -> str:
         """驱动名称: ``fastapi_full``"""
         return "fastapi_full"
 
     @overrides(ForwardDriver)
-    async def request(self, setup: "HTTPRequest") -> Any:
+    async def request(self, setup: "GenericRequest") -> Any:
         async with httpx.AsyncClient(
-            http2=setup.http_version == "2", follow_redirects=True
+            http2=setup.version == HTTPVersion.H2, follow_redirects=True
         ) as client:
             response = await client.request(
                 setup.method,
-                setup.url,
-                content=setup.body,
-                headers=setup.headers,
+                str(setup.url),
+                content=setup.content,
+                headers=tuple(setup.headers.items()),
                 timeout=30.0,
             )
-            return HTTPResponse(
-                response.status_code, response.content, response.headers
+            return GenericResponse(
+                response.status_code,
+                headers=response.headers,
+                content=response.content,
+                request=setup,
             )
 
     @overrides(ForwardDriver)
-    async def websocket(self, setup: "HTTPConnection") -> Any:
-        ws = await Connect(setup.url, extra_headers=setup.headers)
-        return WebSocket("1.1", url.scheme, url.path, url.query, setup.headers, ws)
+    async def websocket(self, setup: "GenericRequest") -> Any:
+        ws = await Connect(str(setup.url), extra_headers=setup.headers.items())
+        return WebSocketsWS(request=setup, websocket=ws)
 
 
-@dataclass
-class WebSocket(BaseWebSocket):
-    websocket: Union[FastAPIWebSocket, WebSocketClientProtocol] = None  # type: ignore
+class WebSocketsWS(BaseWebSocket):
+    @overrides(BaseWebSocket)
+    def __init__(self, *, request: GenericRequest, websocket: WebSocketClientProtocol):
+        super().__init__(request=request)
+        self.websocket = websocket
 
     @property
     @overrides(BaseWebSocket)
     def closed(self) -> bool:
-        if isinstance(self.websocket, FastAPIWebSocket):
-            return (
-                self.websocket.client_state == WebSocketState.DISCONNECTED
-                or self.websocket.application_state == WebSocketState.DISCONNECTED
-            )
-        else:
+        # if isinstance(self.websocket, WebSocket):
+        #     return (
+        #         self.websocket.client_state == WebSocketState.DISCONNECTED
+        #         or self.websocket.application_state == WebSocketState.DISCONNECTED
+        #     )
         return self.websocket.closed
 
     @overrides(BaseWebSocket)
     async def accept(self):
-        if isinstance(self.websocket, FastAPIWebSocket):
-            await self.websocket.accept()
-        else:
+        # if isinstance(self.websocket, WebSocket):
+        #     await self.websocket.accept()
         raise NotImplementedError
 
+    @overrides(BaseWebSocket)
+    async def close(self, code: int = 1000):
+        await self.websocket.close(code)
+
+    @overrides(BaseWebSocket)
+    async def receive(self) -> str:
+        # if isinstance(self.websocket, WebSocket):
+        #     return await self.websocket.receive_text()
+        msg = await self.websocket.recv()
+        if isinstance(msg, bytes):
+            raise TypeError("WebSocket received unexpected frame type: bytes")
+        return msg
+
+    @overrides(BaseWebSocket)
+    async def receive_bytes(self) -> bytes:
+        # if isinstance(self.websocket, WebSocket):
+        #     return await self.websocket.receive_bytes()
+        msg = await self.websocket.recv()
+        if isinstance(msg, str):
+            raise TypeError("WebSocket received unexpected frame type: str")
+        return msg
+
+    @overrides(BaseWebSocket)
+    async def send(self, data: str) -> None:
+        # if isinstance(self.websocket, WebSocket):
+        # await self.websocket.send({"type": "websocket.send", "text": data})
+        await self.websocket.send(data)
+
+    @overrides(BaseWebSocket)
+    async def send_bytes(self, data: bytes) -> None:
+        # if isinstance(self.websocket, WebSocket):
+        #     await self.websocket.send({"type": "websocket.send", "bytes": data})
+        await self.websocket.send(data)
+
+
+class FastAPIWebSocket(BaseWebSocket):
+    @overrides(BaseWebSocket)
+    def __init__(self, *, request: GenericRequest, websocket: WebSocket):
+        super().__init__(request=request)
+        self.websocket = websocket
+
+    @property
+    @overrides(BaseWebSocket)
+    def closed(self) -> bool:
+        return (
+            self.websocket.client_state == WebSocketState.DISCONNECTED
+            or self.websocket.application_state == WebSocketState.DISCONNECTED
+        )
+
+    @overrides(BaseWebSocket)
+    async def accept(self):
+        await self.websocket.accept()
+
     @overrides(BaseWebSocket)
     async def close(self, code: int = status.WS_1000_NORMAL_CLOSURE):
         await self.websocket.close(code)
 
     @overrides(BaseWebSocket)
     async def receive(self) -> str:
-        if isinstance(self.websocket, FastAPIWebSocket):
         return await self.websocket.receive_text()
-        else:
-            msg = await self.websocket.recv()
-            return msg.decode("utf-8") if isinstance(msg, bytes) else msg
 
     @overrides(BaseWebSocket)
     async def receive_bytes(self) -> bytes:
-        if isinstance(self.websocket, FastAPIWebSocket):
         return await self.websocket.receive_bytes()
-        else:
-            msg = await self.websocket.recv()
-            return msg.encode("utf-8") if isinstance(msg, str) else msg
 
     @overrides(BaseWebSocket)
     async def send(self, data: str) -> None:
-        if isinstance(self.websocket, FastAPIWebSocket):
         await self.websocket.send({"type": "websocket.send", "text": data})
-        else:
-            await self.websocket.send(data)
 
     @overrides(BaseWebSocket)
     async def send_bytes(self, data: bytes) -> None:
-        if isinstance(self.websocket, FastAPIWebSocket):
         await self.websocket.send({"type": "websocket.send", "bytes": data})
-        else:
-            await self.websocket.send(data)