two version of R2R are hereHEADmaster

1 files changed, 207 insertions, 0 deletions

diff --git a/.venv/lib/python3.12/site-packages/uvicorn/middleware/wsgi.py b/.venv/lib/python3.12/site-packages/uvicorn/middleware/wsgi.py
new file mode 100644
index 00000000..b181e0f1
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/uvicorn/middleware/wsgi.py
@@ -0,0 +1,207 @@
+import asyncio
+import concurrent.futures
+import io
+import sys
+import warnings
+from collections import deque
+from typing import Deque, Iterable, Optional, Tuple
+
+from uvicorn._types import (
+    ASGIReceiveCallable,
+    ASGIReceiveEvent,
+    ASGISendCallable,
+    ASGISendEvent,
+    Environ,
+    ExcInfo,
+    HTTPRequestEvent,
+    HTTPResponseBodyEvent,
+    HTTPResponseStartEvent,
+    HTTPScope,
+    StartResponse,
+    WSGIApp,
+)
+
+
+def build_environ(
+    scope: "HTTPScope", message: "ASGIReceiveEvent", body: io.BytesIO
+) -> Environ:
+    """
+    Builds a scope and request message into a WSGI environ object.
+    """
+    script_name = scope.get("root_path", "").encode("utf8").decode("latin1")
+    path_info = scope["path"].encode("utf8").decode("latin1")
+    if path_info.startswith(script_name):
+        path_info = path_info[len(script_name) :]
+    environ = {
+        "REQUEST_METHOD": scope["method"],
+        "SCRIPT_NAME": script_name,
+        "PATH_INFO": path_info,
+        "QUERY_STRING": scope["query_string"].decode("ascii"),
+        "SERVER_PROTOCOL": "HTTP/%s" % scope["http_version"],
+        "wsgi.version": (1, 0),
+        "wsgi.url_scheme": scope.get("scheme", "http"),
+        "wsgi.input": body,
+        "wsgi.errors": sys.stdout,
+        "wsgi.multithread": True,
+        "wsgi.multiprocess": True,
+        "wsgi.run_once": False,
+    }
+
+    # Get server name and port - required in WSGI, not in ASGI
+    server = scope.get("server")
+    if server is None:
+        server = ("localhost", 80)
+    environ["SERVER_NAME"] = server[0]
+    environ["SERVER_PORT"] = server[1]
+
+    # Get client IP address
+    client = scope.get("client")
+    if client is not None:
+        environ["REMOTE_ADDR"] = client[0]
+
+    # Go through headers and make them into environ entries
+    for name, value in scope.get("headers", []):
+        name_str: str = name.decode("latin1")
+        if name_str == "content-length":
+            corrected_name = "CONTENT_LENGTH"
+        elif name_str == "content-type":
+            corrected_name = "CONTENT_TYPE"
+        else:
+            corrected_name = "HTTP_%s" % name_str.upper().replace("-", "_")
+        # HTTPbis say only ASCII chars are allowed in headers, but we latin1
+        # just in case
+        value_str: str = value.decode("latin1")
+        if corrected_name in environ:
+            corrected_name_environ = environ[corrected_name]
+            assert isinstance(corrected_name_environ, str)
+            value_str = corrected_name_environ + "," + value_str
+        environ[corrected_name] = value_str
+    return environ
+
+
+class _WSGIMiddleware:
+    def __init__(self, app: WSGIApp, workers: int = 10):
+        warnings.warn(
+            "Uvicorn's native WSGI implementation is deprecated, you "
+            "should switch to a2wsgi (`pip install a2wsgi`).",
+            DeprecationWarning,
+        )
+        self.app = app
+        self.executor = concurrent.futures.ThreadPoolExecutor(max_workers=workers)
+
+    async def __call__(
+        self,
+        scope: "HTTPScope",
+        receive: "ASGIReceiveCallable",
+        send: "ASGISendCallable",
+    ) -> None:
+        assert scope["type"] == "http"
+        instance = WSGIResponder(self.app, self.executor, scope)
+        await instance(receive, send)
+
+
+class WSGIResponder:
+    def __init__(
+        self,
+        app: WSGIApp,
+        executor: concurrent.futures.ThreadPoolExecutor,
+        scope: "HTTPScope",
+    ):
+        self.app = app
+        self.executor = executor
+        self.scope = scope
+        self.status = None
+        self.response_headers = None
+        self.send_event = asyncio.Event()
+        self.send_queue: Deque[Optional["ASGISendEvent"]] = deque()
+        self.loop: asyncio.AbstractEventLoop = asyncio.get_event_loop()
+        self.response_started = False
+        self.exc_info: Optional[ExcInfo] = None
+
+    async def __call__(
+        self, receive: "ASGIReceiveCallable", send: "ASGISendCallable"
+    ) -> None:
+        message: HTTPRequestEvent = await receive()  # type: ignore[assignment]
+        body = io.BytesIO(message.get("body", b""))
+        more_body = message.get("more_body", False)
+        if more_body:
+            body.seek(0, io.SEEK_END)
+            while more_body:
+                body_message: "HTTPRequestEvent" = (
+                    await receive()  # type: ignore[assignment]
+                )
+                body.write(body_message.get("body", b""))
+                more_body = body_message.get("more_body", False)
+            body.seek(0)
+        environ = build_environ(self.scope, message, body)
+        self.loop = asyncio.get_event_loop()
+        wsgi = self.loop.run_in_executor(
+            self.executor, self.wsgi, environ, self.start_response
+        )
+        sender = self.loop.create_task(self.sender(send))
+        try:
+            await asyncio.wait_for(wsgi, None)
+        finally:
+            self.send_queue.append(None)
+            self.send_event.set()
+            await asyncio.wait_for(sender, None)
+        if self.exc_info is not None:
+            raise self.exc_info[0].with_traceback(self.exc_info[1], self.exc_info[2])
+
+    async def sender(self, send: "ASGISendCallable") -> None:
+        while True:
+            if self.send_queue:
+                message = self.send_queue.popleft()
+                if message is None:
+                    return
+                await send(message)
+            else:
+                await self.send_event.wait()
+                self.send_event.clear()
+
+    def start_response(
+        self,
+        status: str,
+        response_headers: Iterable[Tuple[str, str]],
+        exc_info: Optional[ExcInfo] = None,
+    ) -> None:
+        self.exc_info = exc_info
+        if not self.response_started:
+            self.response_started = True
+            status_code_str, _ = status.split(" ", 1)
+            status_code = int(status_code_str)
+            headers = [
+                (name.encode("ascii"), value.encode("ascii"))
+                for name, value in response_headers
+            ]
+            http_response_start_event: HTTPResponseStartEvent = {
+                "type": "http.response.start",
+                "status": status_code,
+                "headers": headers,
+            }
+            self.send_queue.append(http_response_start_event)
+            self.loop.call_soon_threadsafe(self.send_event.set)
+
+    def wsgi(self, environ: Environ, start_response: StartResponse) -> None:
+        for chunk in self.app(environ, start_response):  # type: ignore
+            response_body: HTTPResponseBodyEvent = {
+                "type": "http.response.body",
+                "body": chunk,
+                "more_body": True,
+            }
+            self.send_queue.append(response_body)
+            self.loop.call_soon_threadsafe(self.send_event.set)
+
+        empty_body: HTTPResponseBodyEvent = {
+            "type": "http.response.body",
+            "body": b"",
+            "more_body": False,
+        }
+        self.send_queue.append(empty_body)
+        self.loop.call_soon_threadsafe(self.send_event.set)
+
+
+try:
+    from a2wsgi import WSGIMiddleware
+except ModuleNotFoundError:  # pragma: no cover
+    WSGIMiddleware = _WSGIMiddleware  # type: ignore[misc, assignment]