C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// """WebSocket client for asyncio.""" import asyncio from typing import Any, Optional import async_timeout from .client_exceptions import ClientError from .client_reqrep import ClientResponse from .helpers import call_later, set_result from .http import ( WS_CLOSED_MESSAGE, WS_CLOSING_MESSAGE, WebSocketError, WSMessage, WSMsgType, ) from .http_websocket import WebSocketWriter # WSMessage from .streams import EofStream, FlowControlDataQueue from .typedefs import ( DEFAULT_JSON_DECODER, DEFAULT_JSON_ENCODER, JSONDecoder, JSONEncoder, ) class ClientWebSocketResponse: def __init__( self, reader: "FlowControlDataQueue[WSMessage]", writer: WebSocketWriter, protocol: Optional[str], response: ClientResponse, timeout: float, autoclose: bool, autoping: bool, loop: asyncio.AbstractEventLoop, *, receive_timeout: Optional[float] = None, 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 = None # type: Optional[int] self._timeout = timeout self._receive_timeout = receive_timeout self._autoclose = autoclose self._autoping = autoping self._heartbeat = heartbeat self._heartbeat_cb = None if heartbeat is not None: self._pong_heartbeat = heartbeat / 2.0 self._pong_response_cb = None self._loop = loop self._waiting = None # type: Optional[asyncio.Future[bool]] self._exception = None # type: Optional[BaseException] self._compress = compress self._client_notakeover = client_notakeover self._reset_heartbeat() def _cancel_heartbeat(self) -> None: if self._pong_response_cb is not None: self._pong_response_cb.cancel() self._pong_response_cb = None if self._heartbeat_cb is not None: self._heartbeat_cb.cancel() self._heartbeat_cb = None def _reset_heartbeat(self) -> None: self._cancel_heartbeat() if self._heartbeat is not None: self._heartbeat_cb = call_later( self._send_heartbeat, self._heartbeat, self._loop ) def _send_heartbeat(self) -> None: if self._heartbeat is not None and not self._closed: # fire-and-forget a task is not perfect but maybe ok for # sending ping. Otherwise we need a long-living heartbeat # task in the class. self._loop.create_task(self._writer.ping()) if self._pong_response_cb is not None: self._pong_response_cb.cancel() self._pong_response_cb = call_later( self._pong_not_received, self._pong_heartbeat, self._loop ) def _pong_not_received(self) -> None: if not self._closed: self._closed = True self._close_code = 1006 self._exception = asyncio.TimeoutError() self._response.close() @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.ping(message) async def pong(self, message: bytes = b"") -> None: await self._writer.pong(message) 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(data, binary=False, 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(data, binary=True, 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 = 1000, message: bytes = b"") -> bool: # we need to break `receive()` cycle first, # `close()` may be called from different task if self._waiting is not None and not self._closed: self._reader.feed_data(WS_CLOSING_MESSAGE, 0) await self._waiting if not self._closed: self._cancel_heartbeat() self._closed = True try: await self._writer.close(code, message) except asyncio.CancelledError: self._close_code = 1006 self._response.close() raise except Exception as exc: self._close_code = 1006 self._exception = exc self._response.close() return True if self._closing: self._response.close() return True while True: try: with async_timeout.timeout(self._timeout, loop=self._loop): msg = await self._reader.read() except asyncio.CancelledError: self._close_code = 1006 self._response.close() raise except Exception as exc: self._close_code = 1006 self._exception = exc self._response.close() return True if msg.type == WSMsgType.CLOSE: self._close_code = msg.data self._response.close() return True else: return False async def receive(self, timeout: Optional[float] = None) -> WSMessage: while True: if self._waiting is not None: 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 = self._loop.create_future() try: with async_timeout.timeout( timeout or self._receive_timeout, loop=self._loop ): msg = await self._reader.read() self._reset_heartbeat() finally: waiter = self._waiting self._waiting = None set_result(waiter, True) except (asyncio.CancelledError, asyncio.TimeoutError): self._close_code = 1006 raise except EofStream: self._close_code = 1000 await self.close() return WSMessage(WSMsgType.CLOSED, None, None) except ClientError: self._closed = True self._close_code = 1006 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._closing = True