update to python fastpi
This commit is contained in:
Iliyan Angelov
@@ -0,0 +1,648 @@
|
||||
from __future__ import annotations
|
||||
|
||||
import socket
|
||||
import ssl as ssl_module
|
||||
import threading
|
||||
import warnings
|
||||
from collections.abc import Sequence
|
||||
from typing import Any, Callable, Literal, TypeVar, cast
|
||||
|
||||
from ..client import ClientProtocol
|
||||
from ..datastructures import Headers, HeadersLike
|
||||
from ..exceptions import InvalidProxyMessage, InvalidProxyStatus, ProxyError
|
||||
from ..extensions.base import ClientExtensionFactory
|
||||
from ..extensions.permessage_deflate import enable_client_permessage_deflate
|
||||
from ..headers import build_authorization_basic, build_host, validate_subprotocols
|
||||
from ..http11 import USER_AGENT, Response
|
||||
from ..protocol import CONNECTING, Event
|
||||
from ..streams import StreamReader
|
||||
from ..typing import LoggerLike, Origin, Subprotocol
|
||||
from ..uri import Proxy, WebSocketURI, get_proxy, parse_proxy, parse_uri
|
||||
from .connection import Connection
|
||||
from .utils import Deadline
|
||||
|
||||
|
||||
__all__ = ["connect", "unix_connect", "ClientConnection"]
|
||||
|
||||
|
||||
class ClientConnection(Connection):
|
||||
"""
|
||||
:mod:`threading` implementation of a WebSocket client connection.
|
||||
|
||||
:class:`ClientConnection` provides :meth:`recv` and :meth:`send` methods for
|
||||
receiving and sending messages.
|
||||
|
||||
It supports iteration to receive messages::
|
||||
|
||||
for message in websocket:
|
||||
process(message)
|
||||
|
||||
The iterator exits normally when the connection is closed with close code
|
||||
1000 (OK) or 1001 (going away) or without a close code. It raises a
|
||||
:exc:`~websockets.exceptions.ConnectionClosedError` when the connection is
|
||||
closed with any other code.
|
||||
|
||||
The ``ping_interval``, ``ping_timeout``, ``close_timeout``, and
|
||||
``max_queue`` arguments have the same meaning as in :func:`connect`.
|
||||
|
||||
Args:
|
||||
socket: Socket connected to a WebSocket server.
|
||||
protocol: Sans-I/O connection.
|
||||
|
||||
"""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
socket: socket.socket,
|
||||
protocol: ClientProtocol,
|
||||
*,
|
||||
ping_interval: float | None = 20,
|
||||
ping_timeout: float | None = 20,
|
||||
close_timeout: float | None = 10,
|
||||
max_queue: int | None | tuple[int | None, int | None] = 16,
|
||||
) -> None:
|
||||
self.protocol: ClientProtocol
|
||||
self.response_rcvd = threading.Event()
|
||||
super().__init__(
|
||||
socket,
|
||||
protocol,
|
||||
ping_interval=ping_interval,
|
||||
ping_timeout=ping_timeout,
|
||||
close_timeout=close_timeout,
|
||||
max_queue=max_queue,
|
||||
)
|
||||
|
||||
def handshake(
|
||||
self,
|
||||
additional_headers: HeadersLike | None = None,
|
||||
user_agent_header: str | None = USER_AGENT,
|
||||
timeout: float | None = None,
|
||||
) -> None:
|
||||
"""
|
||||
Perform the opening handshake.
|
||||
|
||||
"""
|
||||
with self.send_context(expected_state=CONNECTING):
|
||||
self.request = self.protocol.connect()
|
||||
if additional_headers is not None:
|
||||
self.request.headers.update(additional_headers)
|
||||
if user_agent_header is not None:
|
||||
self.request.headers.setdefault("User-Agent", user_agent_header)
|
||||
self.protocol.send_request(self.request)
|
||||
|
||||
if not self.response_rcvd.wait(timeout):
|
||||
raise TimeoutError("timed out while waiting for handshake response")
|
||||
|
||||
# self.protocol.handshake_exc is set when the connection is lost before
|
||||
# receiving a response, when the response cannot be parsed, or when the
|
||||
# response fails the handshake.
|
||||
|
||||
if self.protocol.handshake_exc is not None:
|
||||
raise self.protocol.handshake_exc
|
||||
|
||||
def process_event(self, event: Event) -> None:
|
||||
"""
|
||||
Process one incoming event.
|
||||
|
||||
"""
|
||||
# First event - handshake response.
|
||||
if self.response is None:
|
||||
assert isinstance(event, Response)
|
||||
self.response = event
|
||||
self.response_rcvd.set()
|
||||
# Later events - frames.
|
||||
else:
|
||||
super().process_event(event)
|
||||
|
||||
def recv_events(self) -> None:
|
||||
"""
|
||||
Read incoming data from the socket and process events.
|
||||
|
||||
"""
|
||||
try:
|
||||
super().recv_events()
|
||||
finally:
|
||||
# If the connection is closed during the handshake, unblock it.
|
||||
self.response_rcvd.set()
|
||||
|
||||
|
||||
def connect(
|
||||
uri: str,
|
||||
*,
|
||||
# TCP/TLS
|
||||
sock: socket.socket | None = None,
|
||||
ssl: ssl_module.SSLContext | None = None,
|
||||
server_hostname: str | None = None,
|
||||
# WebSocket
|
||||
origin: Origin | None = None,
|
||||
extensions: Sequence[ClientExtensionFactory] | None = None,
|
||||
subprotocols: Sequence[Subprotocol] | None = None,
|
||||
compression: str | None = "deflate",
|
||||
# HTTP
|
||||
additional_headers: HeadersLike | None = None,
|
||||
user_agent_header: str | None = USER_AGENT,
|
||||
proxy: str | Literal[True] | None = True,
|
||||
proxy_ssl: ssl_module.SSLContext | None = None,
|
||||
proxy_server_hostname: str | None = None,
|
||||
# Timeouts
|
||||
open_timeout: float | None = 10,
|
||||
ping_interval: float | None = 20,
|
||||
ping_timeout: float | None = 20,
|
||||
close_timeout: float | None = 10,
|
||||
# Limits
|
||||
max_size: int | None = 2**20,
|
||||
max_queue: int | None | tuple[int | None, int | None] = 16,
|
||||
# Logging
|
||||
logger: LoggerLike | None = None,
|
||||
# Escape hatch for advanced customization
|
||||
create_connection: type[ClientConnection] | None = None,
|
||||
**kwargs: Any,
|
||||
) -> ClientConnection:
|
||||
"""
|
||||
Connect to the WebSocket server at ``uri``.
|
||||
|
||||
This function returns a :class:`ClientConnection` instance, which you can
|
||||
use to send and receive messages.
|
||||
|
||||
:func:`connect` may be used as a context manager::
|
||||
|
||||
from websockets.sync.client import connect
|
||||
|
||||
with connect(...) as websocket:
|
||||
...
|
||||
|
||||
The connection is closed automatically when exiting the context.
|
||||
|
||||
Args:
|
||||
uri: URI of the WebSocket server.
|
||||
sock: Preexisting TCP socket. ``sock`` overrides the host and port
|
||||
from ``uri``. You may call :func:`socket.create_connection` to
|
||||
create a suitable TCP socket.
|
||||
ssl: Configuration for enabling TLS on the connection.
|
||||
server_hostname: Host name for the TLS handshake. ``server_hostname``
|
||||
overrides the host name from ``uri``.
|
||||
origin: Value of the ``Origin`` header, for servers that require it.
|
||||
extensions: List of supported extensions, in order in which they
|
||||
should be negotiated and run.
|
||||
subprotocols: List of supported subprotocols, in order of decreasing
|
||||
preference.
|
||||
compression: The "permessage-deflate" extension is enabled by default.
|
||||
Set ``compression`` to :obj:`None` to disable it. See the
|
||||
:doc:`compression guide <../../topics/compression>` for details.
|
||||
additional_headers (HeadersLike | None): Arbitrary HTTP headers to add
|
||||
to the handshake request.
|
||||
user_agent_header: Value of the ``User-Agent`` request header.
|
||||
It defaults to ``"Python/x.y.z websockets/X.Y"``.
|
||||
Setting it to :obj:`None` removes the header.
|
||||
proxy: If a proxy is configured, it is used by default. Set ``proxy``
|
||||
to :obj:`None` to disable the proxy or to the address of a proxy
|
||||
to override the system configuration. See the :doc:`proxy docs
|
||||
<../../topics/proxies>` for details.
|
||||
proxy_ssl: Configuration for enabling TLS on the proxy connection.
|
||||
proxy_server_hostname: Host name for the TLS handshake with the proxy.
|
||||
``proxy_server_hostname`` overrides the host name from ``proxy``.
|
||||
open_timeout: Timeout for opening the connection in seconds.
|
||||
:obj:`None` disables the timeout.
|
||||
ping_interval: Interval between keepalive pings in seconds.
|
||||
:obj:`None` disables keepalive.
|
||||
ping_timeout: Timeout for keepalive pings in seconds.
|
||||
:obj:`None` disables timeouts.
|
||||
close_timeout: Timeout for closing the connection in seconds.
|
||||
:obj:`None` disables the timeout.
|
||||
max_size: Maximum size of incoming messages in bytes.
|
||||
:obj:`None` disables the limit.
|
||||
max_queue: High-water mark of the buffer where frames are received.
|
||||
It defaults to 16 frames. The low-water mark defaults to ``max_queue
|
||||
// 4``. You may pass a ``(high, low)`` tuple to set the high-water
|
||||
and low-water marks. If you want to disable flow control entirely,
|
||||
you may set it to ``None``, although that's a bad idea.
|
||||
logger: Logger for this client.
|
||||
It defaults to ``logging.getLogger("websockets.client")``.
|
||||
See the :doc:`logging guide <../../topics/logging>` for details.
|
||||
create_connection: Factory for the :class:`ClientConnection` managing
|
||||
the connection. Set it to a wrapper or a subclass to customize
|
||||
connection handling.
|
||||
|
||||
Any other keyword arguments are passed to :func:`~socket.create_connection`.
|
||||
|
||||
Raises:
|
||||
InvalidURI: If ``uri`` isn't a valid WebSocket URI.
|
||||
OSError: If the TCP connection fails.
|
||||
InvalidHandshake: If the opening handshake fails.
|
||||
TimeoutError: If the opening handshake times out.
|
||||
|
||||
"""
|
||||
|
||||
# Process parameters
|
||||
|
||||
# Backwards compatibility: ssl used to be called ssl_context.
|
||||
if ssl is None and "ssl_context" in kwargs:
|
||||
ssl = kwargs.pop("ssl_context")
|
||||
warnings.warn( # deprecated in 13.0 - 2024-08-20
|
||||
"ssl_context was renamed to ssl",
|
||||
DeprecationWarning,
|
||||
)
|
||||
|
||||
ws_uri = parse_uri(uri)
|
||||
if not ws_uri.secure and ssl is not None:
|
||||
raise ValueError("ssl argument is incompatible with a ws:// URI")
|
||||
|
||||
# Private APIs for unix_connect()
|
||||
unix: bool = kwargs.pop("unix", False)
|
||||
path: str | None = kwargs.pop("path", None)
|
||||
|
||||
if unix:
|
||||
if path is None and sock is None:
|
||||
raise ValueError("missing path argument")
|
||||
elif path is not None and sock is not None:
|
||||
raise ValueError("path and sock arguments are incompatible")
|
||||
|
||||
if subprotocols is not None:
|
||||
validate_subprotocols(subprotocols)
|
||||
|
||||
if compression == "deflate":
|
||||
extensions = enable_client_permessage_deflate(extensions)
|
||||
elif compression is not None:
|
||||
raise ValueError(f"unsupported compression: {compression}")
|
||||
|
||||
if unix:
|
||||
proxy = None
|
||||
if sock is not None:
|
||||
proxy = None
|
||||
if proxy is True:
|
||||
proxy = get_proxy(ws_uri)
|
||||
|
||||
# Calculate timeouts on the TCP, TLS, and WebSocket handshakes.
|
||||
# The TCP and TLS timeouts must be set on the socket, then removed
|
||||
# to avoid conflicting with the WebSocket timeout in handshake().
|
||||
deadline = Deadline(open_timeout)
|
||||
|
||||
if create_connection is None:
|
||||
create_connection = ClientConnection
|
||||
|
||||
try:
|
||||
# Connect socket
|
||||
|
||||
if sock is None:
|
||||
if unix:
|
||||
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
|
||||
sock.settimeout(deadline.timeout())
|
||||
assert path is not None # mypy cannot figure this out
|
||||
sock.connect(path)
|
||||
elif proxy is not None:
|
||||
proxy_parsed = parse_proxy(proxy)
|
||||
if proxy_parsed.scheme[:5] == "socks":
|
||||
# Connect to the server through the proxy.
|
||||
sock = connect_socks_proxy(
|
||||
proxy_parsed,
|
||||
ws_uri,
|
||||
deadline,
|
||||
# websockets is consistent with the socket module while
|
||||
# python_socks is consistent across implementations.
|
||||
local_addr=kwargs.pop("source_address", None),
|
||||
)
|
||||
elif proxy_parsed.scheme[:4] == "http":
|
||||
# Validate the proxy_ssl argument.
|
||||
if proxy_parsed.scheme != "https" and proxy_ssl is not None:
|
||||
raise ValueError(
|
||||
"proxy_ssl argument is incompatible with an http:// proxy"
|
||||
)
|
||||
# Connect to the server through the proxy.
|
||||
sock = connect_http_proxy(
|
||||
proxy_parsed,
|
||||
ws_uri,
|
||||
deadline,
|
||||
user_agent_header=user_agent_header,
|
||||
ssl=proxy_ssl,
|
||||
server_hostname=proxy_server_hostname,
|
||||
**kwargs,
|
||||
)
|
||||
else:
|
||||
raise AssertionError("unsupported proxy")
|
||||
else:
|
||||
kwargs.setdefault("timeout", deadline.timeout())
|
||||
sock = socket.create_connection(
|
||||
(ws_uri.host, ws_uri.port),
|
||||
**kwargs,
|
||||
)
|
||||
sock.settimeout(None)
|
||||
|
||||
# Disable Nagle algorithm
|
||||
|
||||
if not unix:
|
||||
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True)
|
||||
|
||||
# Initialize TLS wrapper and perform TLS handshake
|
||||
|
||||
if ws_uri.secure:
|
||||
if ssl is None:
|
||||
ssl = ssl_module.create_default_context()
|
||||
if server_hostname is None:
|
||||
server_hostname = ws_uri.host
|
||||
sock.settimeout(deadline.timeout())
|
||||
if proxy_ssl is None:
|
||||
sock = ssl.wrap_socket(sock, server_hostname=server_hostname)
|
||||
else:
|
||||
sock_2 = SSLSSLSocket(sock, ssl, server_hostname=server_hostname)
|
||||
# Let's pretend that sock is a socket, even though it isn't.
|
||||
sock = cast(socket.socket, sock_2)
|
||||
sock.settimeout(None)
|
||||
|
||||
# Initialize WebSocket protocol
|
||||
|
||||
protocol = ClientProtocol(
|
||||
ws_uri,
|
||||
origin=origin,
|
||||
extensions=extensions,
|
||||
subprotocols=subprotocols,
|
||||
max_size=max_size,
|
||||
logger=logger,
|
||||
)
|
||||
|
||||
# Initialize WebSocket connection
|
||||
|
||||
connection = create_connection(
|
||||
sock,
|
||||
protocol,
|
||||
ping_interval=ping_interval,
|
||||
ping_timeout=ping_timeout,
|
||||
close_timeout=close_timeout,
|
||||
max_queue=max_queue,
|
||||
)
|
||||
except Exception:
|
||||
if sock is not None:
|
||||
sock.close()
|
||||
raise
|
||||
|
||||
try:
|
||||
connection.handshake(
|
||||
additional_headers,
|
||||
user_agent_header,
|
||||
deadline.timeout(),
|
||||
)
|
||||
except Exception:
|
||||
connection.close_socket()
|
||||
connection.recv_events_thread.join()
|
||||
raise
|
||||
|
||||
connection.start_keepalive()
|
||||
return connection
|
||||
|
||||
|
||||
def unix_connect(
|
||||
path: str | None = None,
|
||||
uri: str | None = None,
|
||||
**kwargs: Any,
|
||||
) -> ClientConnection:
|
||||
"""
|
||||
Connect to a WebSocket server listening on a Unix socket.
|
||||
|
||||
This function accepts the same keyword arguments as :func:`connect`.
|
||||
|
||||
It's only available on Unix.
|
||||
|
||||
It's mainly useful for debugging servers listening on Unix sockets.
|
||||
|
||||
Args:
|
||||
path: File system path to the Unix socket.
|
||||
uri: URI of the WebSocket server. ``uri`` defaults to
|
||||
``ws://localhost/`` or, when a ``ssl`` is provided, to
|
||||
``wss://localhost/``.
|
||||
|
||||
"""
|
||||
if uri is None:
|
||||
# Backwards compatibility: ssl used to be called ssl_context.
|
||||
if kwargs.get("ssl") is None and kwargs.get("ssl_context") is None:
|
||||
uri = "ws://localhost/"
|
||||
else:
|
||||
uri = "wss://localhost/"
|
||||
return connect(uri=uri, unix=True, path=path, **kwargs)
|
||||
|
||||
|
||||
try:
|
||||
from python_socks import ProxyType
|
||||
from python_socks.sync import Proxy as SocksProxy
|
||||
|
||||
SOCKS_PROXY_TYPES = {
|
||||
"socks5h": ProxyType.SOCKS5,
|
||||
"socks5": ProxyType.SOCKS5,
|
||||
"socks4a": ProxyType.SOCKS4,
|
||||
"socks4": ProxyType.SOCKS4,
|
||||
}
|
||||
|
||||
SOCKS_PROXY_RDNS = {
|
||||
"socks5h": True,
|
||||
"socks5": False,
|
||||
"socks4a": True,
|
||||
"socks4": False,
|
||||
}
|
||||
|
||||
def connect_socks_proxy(
|
||||
proxy: Proxy,
|
||||
ws_uri: WebSocketURI,
|
||||
deadline: Deadline,
|
||||
**kwargs: Any,
|
||||
) -> socket.socket:
|
||||
"""Connect via a SOCKS proxy and return the socket."""
|
||||
socks_proxy = SocksProxy(
|
||||
SOCKS_PROXY_TYPES[proxy.scheme],
|
||||
proxy.host,
|
||||
proxy.port,
|
||||
proxy.username,
|
||||
proxy.password,
|
||||
SOCKS_PROXY_RDNS[proxy.scheme],
|
||||
)
|
||||
kwargs.setdefault("timeout", deadline.timeout())
|
||||
# connect() is documented to raise OSError and TimeoutError.
|
||||
# Wrap other exceptions in ProxyError, a subclass of InvalidHandshake.
|
||||
try:
|
||||
return socks_proxy.connect(ws_uri.host, ws_uri.port, **kwargs)
|
||||
except (OSError, TimeoutError, socket.timeout):
|
||||
raise
|
||||
except Exception as exc:
|
||||
raise ProxyError("failed to connect to SOCKS proxy") from exc
|
||||
|
||||
except ImportError:
|
||||
|
||||
def connect_socks_proxy(
|
||||
proxy: Proxy,
|
||||
ws_uri: WebSocketURI,
|
||||
deadline: Deadline,
|
||||
**kwargs: Any,
|
||||
) -> socket.socket:
|
||||
raise ImportError("python-socks is required to use a SOCKS proxy")
|
||||
|
||||
|
||||
def prepare_connect_request(
|
||||
proxy: Proxy,
|
||||
ws_uri: WebSocketURI,
|
||||
user_agent_header: str | None = None,
|
||||
) -> bytes:
|
||||
host = build_host(ws_uri.host, ws_uri.port, ws_uri.secure, always_include_port=True)
|
||||
headers = Headers()
|
||||
headers["Host"] = build_host(ws_uri.host, ws_uri.port, ws_uri.secure)
|
||||
if user_agent_header is not None:
|
||||
headers["User-Agent"] = user_agent_header
|
||||
if proxy.username is not None:
|
||||
assert proxy.password is not None # enforced by parse_proxy()
|
||||
headers["Proxy-Authorization"] = build_authorization_basic(
|
||||
proxy.username, proxy.password
|
||||
)
|
||||
# We cannot use the Request class because it supports only GET requests.
|
||||
return f"CONNECT {host} HTTP/1.1\r\n".encode() + headers.serialize()
|
||||
|
||||
|
||||
def read_connect_response(sock: socket.socket, deadline: Deadline) -> Response:
|
||||
reader = StreamReader()
|
||||
parser = Response.parse(
|
||||
reader.read_line,
|
||||
reader.read_exact,
|
||||
reader.read_to_eof,
|
||||
include_body=False,
|
||||
)
|
||||
try:
|
||||
while True:
|
||||
sock.settimeout(deadline.timeout())
|
||||
data = sock.recv(4096)
|
||||
if data:
|
||||
reader.feed_data(data)
|
||||
else:
|
||||
reader.feed_eof()
|
||||
next(parser)
|
||||
except StopIteration as exc:
|
||||
assert isinstance(exc.value, Response) # help mypy
|
||||
response = exc.value
|
||||
if 200 <= response.status_code < 300:
|
||||
return response
|
||||
else:
|
||||
raise InvalidProxyStatus(response)
|
||||
except socket.timeout:
|
||||
raise TimeoutError("timed out while connecting to HTTP proxy")
|
||||
except Exception as exc:
|
||||
raise InvalidProxyMessage(
|
||||
"did not receive a valid HTTP response from proxy"
|
||||
) from exc
|
||||
finally:
|
||||
sock.settimeout(None)
|
||||
|
||||
|
||||
def connect_http_proxy(
|
||||
proxy: Proxy,
|
||||
ws_uri: WebSocketURI,
|
||||
deadline: Deadline,
|
||||
*,
|
||||
user_agent_header: str | None = None,
|
||||
ssl: ssl_module.SSLContext | None = None,
|
||||
server_hostname: str | None = None,
|
||||
**kwargs: Any,
|
||||
) -> socket.socket:
|
||||
# Connect socket
|
||||
|
||||
kwargs.setdefault("timeout", deadline.timeout())
|
||||
sock = socket.create_connection((proxy.host, proxy.port), **kwargs)
|
||||
|
||||
# Initialize TLS wrapper and perform TLS handshake
|
||||
|
||||
if proxy.scheme == "https":
|
||||
if ssl is None:
|
||||
ssl = ssl_module.create_default_context()
|
||||
if server_hostname is None:
|
||||
server_hostname = proxy.host
|
||||
sock.settimeout(deadline.timeout())
|
||||
sock = ssl.wrap_socket(sock, server_hostname=server_hostname)
|
||||
sock.settimeout(None)
|
||||
|
||||
# Send CONNECT request to the proxy and read response.
|
||||
|
||||
sock.sendall(prepare_connect_request(proxy, ws_uri, user_agent_header))
|
||||
try:
|
||||
read_connect_response(sock, deadline)
|
||||
except Exception:
|
||||
sock.close()
|
||||
raise
|
||||
|
||||
return sock
|
||||
|
||||
|
||||
T = TypeVar("T")
|
||||
F = TypeVar("F", bound=Callable[..., T])
|
||||
|
||||
|
||||
class SSLSSLSocket:
|
||||
"""
|
||||
Socket-like object providing TLS-in-TLS.
|
||||
|
||||
Only methods that are used by websockets are implemented.
|
||||
|
||||
"""
|
||||
|
||||
recv_bufsize = 65536
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
sock: socket.socket,
|
||||
ssl_context: ssl_module.SSLContext,
|
||||
server_hostname: str | None = None,
|
||||
) -> None:
|
||||
self.incoming = ssl_module.MemoryBIO()
|
||||
self.outgoing = ssl_module.MemoryBIO()
|
||||
self.ssl_socket = sock
|
||||
self.ssl_object = ssl_context.wrap_bio(
|
||||
self.incoming,
|
||||
self.outgoing,
|
||||
server_hostname=server_hostname,
|
||||
)
|
||||
self.run_io(self.ssl_object.do_handshake)
|
||||
|
||||
def run_io(self, func: Callable[..., T], *args: Any) -> T:
|
||||
while True:
|
||||
want_read = False
|
||||
want_write = False
|
||||
try:
|
||||
result = func(*args)
|
||||
except ssl_module.SSLWantReadError:
|
||||
want_read = True
|
||||
except ssl_module.SSLWantWriteError: # pragma: no cover
|
||||
want_write = True
|
||||
|
||||
# Write outgoing data in all cases.
|
||||
data = self.outgoing.read()
|
||||
if data:
|
||||
self.ssl_socket.sendall(data)
|
||||
|
||||
# Read incoming data and retry on SSLWantReadError.
|
||||
if want_read:
|
||||
data = self.ssl_socket.recv(self.recv_bufsize)
|
||||
if data:
|
||||
self.incoming.write(data)
|
||||
else:
|
||||
self.incoming.write_eof()
|
||||
continue
|
||||
# Retry after writing outgoing data on SSLWantWriteError.
|
||||
if want_write: # pragma: no cover
|
||||
continue
|
||||
# Return result if no error happened.
|
||||
return result
|
||||
|
||||
def recv(self, buflen: int) -> bytes:
|
||||
try:
|
||||
return self.run_io(self.ssl_object.read, buflen)
|
||||
except ssl_module.SSLEOFError:
|
||||
return b"" # always ignore ragged EOFs
|
||||
|
||||
def send(self, data: bytes) -> int:
|
||||
return self.run_io(self.ssl_object.write, data)
|
||||
|
||||
def sendall(self, data: bytes) -> None:
|
||||
# adapted from ssl_module.SSLSocket.sendall()
|
||||
count = 0
|
||||
with memoryview(data) as view, view.cast("B") as byte_view:
|
||||
amount = len(byte_view)
|
||||
while count < amount:
|
||||
count += self.send(byte_view[count:])
|
||||
|
||||
# recv_into(), recvfrom(), recvfrom_into(), sendto(), unwrap(), and the
|
||||
# flags argument aren't implemented because websockets doesn't need them.
|
||||
|
||||
def __getattr__(self, name: str) -> Any:
|
||||
return getattr(self.ssl_socket, name)
|
||||
Reference in New Issue
Block a user