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authorS. Solomon Darnell2025-03-28 21:52:21 -0500
committerS. Solomon Darnell2025-03-28 21:52:21 -0500
commit4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
treeee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/aiohttp/client_ws.py
parentcc961e04ba734dd72309fb548a2f97d67d578813 (diff)
downloadgn-ai-4a52a71956a8d46fcb7294ac71734504bb09bcc2.tar.gz
two version of R2R are here HEAD master
Diffstat (limited to '.venv/lib/python3.12/site-packages/aiohttp/client_ws.py')
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diff --git a/.venv/lib/python3.12/site-packages/aiohttp/client_ws.py b/.venv/lib/python3.12/site-packages/aiohttp/client_ws.py
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+"""WebSocket client for asyncio."""
+
+import asyncio
+import sys
+from types import TracebackType
+from typing import Any, Optional, Type, cast
+
+import attr
+
+from ._websocket.reader import WebSocketDataQueue
+from .client_exceptions import ClientError, ServerTimeoutError, WSMessageTypeError
+from .client_reqrep import ClientResponse
+from .helpers import calculate_timeout_when, set_result
+from .http import (
+    WS_CLOSED_MESSAGE,
+    WS_CLOSING_MESSAGE,
+    WebSocketError,
+    WSCloseCode,
+    WSMessage,
+    WSMsgType,
+)
+from .http_websocket import _INTERNAL_RECEIVE_TYPES, WebSocketWriter
+from .streams import EofStream
+from .typedefs import (
+    DEFAULT_JSON_DECODER,
+    DEFAULT_JSON_ENCODER,
+    JSONDecoder,
+    JSONEncoder,
+)
+
+if sys.version_info >= (3, 11):
+    import asyncio as async_timeout
+else:
+    import async_timeout
+
+
+@attr.s(frozen=True, slots=True)
+class ClientWSTimeout:
+    ws_receive = attr.ib(type=Optional[float], default=None)
+    ws_close = attr.ib(type=Optional[float], default=None)
+
+
+DEFAULT_WS_CLIENT_TIMEOUT = ClientWSTimeout(ws_receive=None, ws_close=10.0)
+
+
+class ClientWebSocketResponse:
+    def __init__(
+        self,
+        reader: WebSocketDataQueue,
+        writer: WebSocketWriter,
+        protocol: Optional[str],
+        response: ClientResponse,
+        timeout: ClientWSTimeout,
+        autoclose: bool,
+        autoping: bool,
+        loop: asyncio.AbstractEventLoop,
+        *,
+        heartbeat: Optional[float] = None,
+        compress: int = 0,
+        client_notakeover: bool = False,
+    ) -> None:
+        self._response = response
+        self._conn = response.connection
+
+        self._writer = writer
+        self._reader = reader
+        self._protocol = protocol
+        self._closed = False
+        self._closing = False
+        self._close_code: Optional[int] = None
+        self._timeout = timeout
+        self._autoclose = autoclose
+        self._autoping = autoping
+        self._heartbeat = heartbeat
+        self._heartbeat_cb: Optional[asyncio.TimerHandle] = None
+        self._heartbeat_when: float = 0.0
+        if heartbeat is not None:
+            self._pong_heartbeat = heartbeat / 2.0
+        self._pong_response_cb: Optional[asyncio.TimerHandle] = None
+        self._loop = loop
+        self._waiting: bool = False
+        self._close_wait: Optional[asyncio.Future[None]] = None
+        self._exception: Optional[BaseException] = None
+        self._compress = compress
+        self._client_notakeover = client_notakeover
+        self._ping_task: Optional[asyncio.Task[None]] = None
+
+        self._reset_heartbeat()
+
+    def _cancel_heartbeat(self) -> None:
+        self._cancel_pong_response_cb()
+        if self._heartbeat_cb is not None:
+            self._heartbeat_cb.cancel()
+            self._heartbeat_cb = None
+        if self._ping_task is not None:
+            self._ping_task.cancel()
+            self._ping_task = None
+
+    def _cancel_pong_response_cb(self) -> None:
+        if self._pong_response_cb is not None:
+            self._pong_response_cb.cancel()
+            self._pong_response_cb = None
+
+    def _reset_heartbeat(self) -> None:
+        if self._heartbeat is None:
+            return
+        self._cancel_pong_response_cb()
+        loop = self._loop
+        assert loop is not None
+        conn = self._conn
+        timeout_ceil_threshold = (
+            conn._connector._timeout_ceil_threshold if conn is not None else 5
+        )
+        now = loop.time()
+        when = calculate_timeout_when(now, self._heartbeat, timeout_ceil_threshold)
+        self._heartbeat_when = when
+        if self._heartbeat_cb is None:
+            # We do not cancel the previous heartbeat_cb here because
+            # it generates a significant amount of TimerHandle churn
+            # which causes asyncio to rebuild the heap frequently.
+            # Instead _send_heartbeat() will reschedule the next
+            # heartbeat if it fires too early.
+            self._heartbeat_cb = loop.call_at(when, self._send_heartbeat)
+
+    def _send_heartbeat(self) -> None:
+        self._heartbeat_cb = None
+        loop = self._loop
+        now = loop.time()
+        if now < self._heartbeat_when:
+            # Heartbeat fired too early, reschedule
+            self._heartbeat_cb = loop.call_at(
+                self._heartbeat_when, self._send_heartbeat
+            )
+            return
+
+        conn = self._conn
+        timeout_ceil_threshold = (
+            conn._connector._timeout_ceil_threshold if conn is not None else 5
+        )
+        when = calculate_timeout_when(now, self._pong_heartbeat, timeout_ceil_threshold)
+        self._cancel_pong_response_cb()
+        self._pong_response_cb = loop.call_at(when, self._pong_not_received)
+
+        coro = self._writer.send_frame(b"", WSMsgType.PING)
+        if sys.version_info >= (3, 12):
+            # Optimization for Python 3.12, try to send the ping
+            # immediately to avoid having to schedule
+            # the task on the event loop.
+            ping_task = asyncio.Task(coro, loop=loop, eager_start=True)
+        else:
+            ping_task = loop.create_task(coro)
+
+        if not ping_task.done():
+            self._ping_task = ping_task
+            ping_task.add_done_callback(self._ping_task_done)
+        else:
+            self._ping_task_done(ping_task)
+
+    def _ping_task_done(self, task: "asyncio.Task[None]") -> None:
+        """Callback for when the ping task completes."""
+        if not task.cancelled() and (exc := task.exception()):
+            self._handle_ping_pong_exception(exc)
+        self._ping_task = None
+
+    def _pong_not_received(self) -> None:
+        self._handle_ping_pong_exception(
+            ServerTimeoutError(f"No PONG received after {self._pong_heartbeat} seconds")
+        )
+
+    def _handle_ping_pong_exception(self, exc: BaseException) -> None:
+        """Handle exceptions raised during ping/pong processing."""
+        if self._closed:
+            return
+        self._set_closed()
+        self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+        self._exception = exc
+        self._response.close()
+        if self._waiting and not self._closing:
+            self._reader.feed_data(WSMessage(WSMsgType.ERROR, exc, None), 0)
+
+    def _set_closed(self) -> None:
+        """Set the connection to closed.
+
+        Cancel any heartbeat timers and set the closed flag.
+        """
+        self._closed = True
+        self._cancel_heartbeat()
+
+    def _set_closing(self) -> None:
+        """Set the connection to closing.
+
+        Cancel any heartbeat timers and set the closing flag.
+        """
+        self._closing = True
+        self._cancel_heartbeat()
+
+    @property
+    def closed(self) -> bool:
+        return self._closed
+
+    @property
+    def close_code(self) -> Optional[int]:
+        return self._close_code
+
+    @property
+    def protocol(self) -> Optional[str]:
+        return self._protocol
+
+    @property
+    def compress(self) -> int:
+        return self._compress
+
+    @property
+    def client_notakeover(self) -> bool:
+        return self._client_notakeover
+
+    def get_extra_info(self, name: str, default: Any = None) -> Any:
+        """extra info from connection transport"""
+        conn = self._response.connection
+        if conn is None:
+            return default
+        transport = conn.transport
+        if transport is None:
+            return default
+        return transport.get_extra_info(name, default)
+
+    def exception(self) -> Optional[BaseException]:
+        return self._exception
+
+    async def ping(self, message: bytes = b"") -> None:
+        await self._writer.send_frame(message, WSMsgType.PING)
+
+    async def pong(self, message: bytes = b"") -> None:
+        await self._writer.send_frame(message, WSMsgType.PONG)
+
+    async def send_frame(
+        self, message: bytes, opcode: WSMsgType, compress: Optional[int] = None
+    ) -> None:
+        """Send a frame over the websocket."""
+        await self._writer.send_frame(message, opcode, compress)
+
+    async def send_str(self, data: str, compress: Optional[int] = None) -> None:
+        if not isinstance(data, str):
+            raise TypeError("data argument must be str (%r)" % type(data))
+        await self._writer.send_frame(
+            data.encode("utf-8"), WSMsgType.TEXT, compress=compress
+        )
+
+    async def send_bytes(self, data: bytes, compress: Optional[int] = None) -> None:
+        if not isinstance(data, (bytes, bytearray, memoryview)):
+            raise TypeError("data argument must be byte-ish (%r)" % type(data))
+        await self._writer.send_frame(data, WSMsgType.BINARY, compress=compress)
+
+    async def send_json(
+        self,
+        data: Any,
+        compress: Optional[int] = None,
+        *,
+        dumps: JSONEncoder = DEFAULT_JSON_ENCODER,
+    ) -> None:
+        await self.send_str(dumps(data), compress=compress)
+
+    async def close(self, *, code: int = WSCloseCode.OK, message: bytes = b"") -> bool:
+        # we need to break `receive()` cycle first,
+        # `close()` may be called from different task
+        if self._waiting and not self._closing:
+            assert self._loop is not None
+            self._close_wait = self._loop.create_future()
+            self._set_closing()
+            self._reader.feed_data(WS_CLOSING_MESSAGE, 0)
+            await self._close_wait
+
+        if self._closed:
+            return False
+
+        self._set_closed()
+        try:
+            await self._writer.close(code, message)
+        except asyncio.CancelledError:
+            self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+            self._response.close()
+            raise
+        except Exception as exc:
+            self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+            self._exception = exc
+            self._response.close()
+            return True
+
+        if self._close_code:
+            self._response.close()
+            return True
+
+        while True:
+            try:
+                async with async_timeout.timeout(self._timeout.ws_close):
+                    msg = await self._reader.read()
+            except asyncio.CancelledError:
+                self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+                self._response.close()
+                raise
+            except Exception as exc:
+                self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+                self._exception = exc
+                self._response.close()
+                return True
+
+            if msg.type is WSMsgType.CLOSE:
+                self._close_code = msg.data
+                self._response.close()
+                return True
+
+    async def receive(self, timeout: Optional[float] = None) -> WSMessage:
+        receive_timeout = timeout or self._timeout.ws_receive
+
+        while True:
+            if self._waiting:
+                raise RuntimeError("Concurrent call to receive() is not allowed")
+
+            if self._closed:
+                return WS_CLOSED_MESSAGE
+            elif self._closing:
+                await self.close()
+                return WS_CLOSED_MESSAGE
+
+            try:
+                self._waiting = True
+                try:
+                    if receive_timeout:
+                        # Entering the context manager and creating
+                        # Timeout() object can take almost 50% of the
+                        # run time in this loop so we avoid it if
+                        # there is no read timeout.
+                        async with async_timeout.timeout(receive_timeout):
+                            msg = await self._reader.read()
+                    else:
+                        msg = await self._reader.read()
+                    self._reset_heartbeat()
+                finally:
+                    self._waiting = False
+                    if self._close_wait:
+                        set_result(self._close_wait, None)
+            except (asyncio.CancelledError, asyncio.TimeoutError):
+                self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+                raise
+            except EofStream:
+                self._close_code = WSCloseCode.OK
+                await self.close()
+                return WSMessage(WSMsgType.CLOSED, None, None)
+            except ClientError:
+                # Likely ServerDisconnectedError when connection is lost
+                self._set_closed()
+                self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+                return WS_CLOSED_MESSAGE
+            except WebSocketError as exc:
+                self._close_code = exc.code
+                await self.close(code=exc.code)
+                return WSMessage(WSMsgType.ERROR, exc, None)
+            except Exception as exc:
+                self._exception = exc
+                self._set_closing()
+                self._close_code = WSCloseCode.ABNORMAL_CLOSURE
+                await self.close()
+                return WSMessage(WSMsgType.ERROR, exc, None)
+
+            if msg.type not in _INTERNAL_RECEIVE_TYPES:
+                # If its not a close/closing/ping/pong message
+                # we can return it immediately
+                return msg
+
+            if msg.type is WSMsgType.CLOSE:
+                self._set_closing()
+                self._close_code = msg.data
+                if not self._closed and self._autoclose:
+                    await self.close()
+            elif msg.type is WSMsgType.CLOSING:
+                self._set_closing()
+            elif msg.type is WSMsgType.PING and self._autoping:
+                await self.pong(msg.data)
+                continue
+            elif msg.type is WSMsgType.PONG and self._autoping:
+                continue
+
+            return msg
+
+    async def receive_str(self, *, timeout: Optional[float] = None) -> str:
+        msg = await self.receive(timeout)
+        if msg.type is not WSMsgType.TEXT:
+            raise WSMessageTypeError(
+                f"Received message {msg.type}:{msg.data!r} is not WSMsgType.TEXT"
+            )
+        return cast(str, msg.data)
+
+    async def receive_bytes(self, *, timeout: Optional[float] = None) -> bytes:
+        msg = await self.receive(timeout)
+        if msg.type is not WSMsgType.BINARY:
+            raise WSMessageTypeError(
+                f"Received message {msg.type}:{msg.data!r} is not WSMsgType.BINARY"
+            )
+        return cast(bytes, msg.data)
+
+    async def receive_json(
+        self,
+        *,
+        loads: JSONDecoder = DEFAULT_JSON_DECODER,
+        timeout: Optional[float] = None,
+    ) -> Any:
+        data = await self.receive_str(timeout=timeout)
+        return loads(data)
+
+    def __aiter__(self) -> "ClientWebSocketResponse":
+        return self
+
+    async def __anext__(self) -> WSMessage:
+        msg = await self.receive()
+        if msg.type in (WSMsgType.CLOSE, WSMsgType.CLOSING, WSMsgType.CLOSED):
+            raise StopAsyncIteration
+        return msg
+
+    async def __aenter__(self) -> "ClientWebSocketResponse":
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        await self.close()