Reworked lsp manager plugin; removed websockets library

plugins/gtksourceview/lsp_manager/client_ipc.py

@@ -0,0 +1,168 @@
+# Python imports
+import os
+import threading
+import time
+import json
+import base64
+from multiprocessing.connection import Client
+from multiprocessing.connection import Listener
+
+# Lib imports
+
+# Application imports
+from .lsp_message_structs import LSPResponseRequest, LSPResponseNotification, get_message_obj
+
+
+
+class ClientIPC:
+    """ Create a Messenger so talk to LSP Manager. """
+    def __init__(self, ipc_address: str = '127.0.0.1', conn_type: str = "socket"):
+        self.is_ipc_alive     = False
+        self._ipc_port        = 4848
+        self._ipc_address     = ipc_address
+        self._conn_type       = conn_type
+        self._ipc_authkey         = b'' + bytes(f'lsp-client-endpoint-ipc', 'utf-8')
+        self._manager_ipc_authkey = b'' + bytes(f'lsp-manager-endpoint-ipc', 'utf-8')
+        self._ipc_timeout     = 15.0
+
+        if conn_type == "socket":
+            self._ipc_address         = f'/tmp/lsp-client-endpoint-ipc.sock'
+            self._manager_ipc_address = f'/tmp/lsp-manager-endpoint-ipc.sock'
+        elif conn_type == "full_network":
+            self._ipc_address = '0.0.0.0'
+        elif conn_type == "full_network_unsecured":
+            self._ipc_authkey = None
+            self._ipc_address = '0.0.0.0'
+        elif conn_type == "local_network_unsecured":
+            self._ipc_authkey = None
+
+
+    def create_ipc_listener(self) -> None:
+        if self._conn_type == "socket":
+            if os.path.exists(self._ipc_address) and settings_manager.is_dirty_start():
+                os.unlink(self._ipc_address)
+
+            listener = Listener(address=self._ipc_address, family="AF_UNIX", authkey=self._ipc_authkey)
+        elif "unsecured" not in self._conn_type:
+            listener = Listener((self._ipc_address, self._ipc_port), authkey=self._ipc_authkey)
+        else:
+            listener = Listener((self._ipc_address, self._ipc_port))
+
+
+        self.is_ipc_alive = True
+        self._run_ipc_loop(listener)
+
+    @daemon_threaded
+    def _run_ipc_loop(self, listener) -> None:
+        # NOTE: Not thread safe if using with Gtk. Need to import GLib and use idle_add
+        while self.is_ipc_alive:
+            try:
+                conn       = listener.accept()
+                start_time = time.perf_counter()
+                self._handle_ipc_message(conn, start_time)
+            except Exception as e:
+                logger.debug( repr(e) )
+
+        listener.close()
+
+    def _handle_ipc_message(self, conn, start_time) -> None:
+        while self.is_ipc_alive:
+            msg = conn.recv()
+            logger.debug(msg)
+
+            if "MANAGER|" in msg:
+                data = msg.split("MANAGER|")[1].strip()
+                if data:
+                    data_str     = base64.b64decode(data.encode("utf-8")).decode("utf-8")
+                    lsp_response = None
+                    keys         = None
+
+                    try:
+                        lsp_response = json.loads(data_str)
+                        keys         = lsp_response.keys()
+                    except Exception as e:
+                        logger.debug( repr(e) )
+                        break
+
+                    if "result" in keys:
+                        lsp_response = LSPResponseRequest(**get_message_obj(data))
+
+                    if "method" in keys:
+                        lsp_response = LSPResponseNotification(**get_message_obj(data))
+
+                    if "notification" in keys:
+                        ...
+
+                    if "response" in keys:
+                        ...
+
+                    if "ignorable" in keys:
+                        ...
+
+                    if lsp_response:
+                        self._event_system.emit("handle-lsp-message"), (lsp_response)
+
+                conn.close()
+                break
+
+            if msg in ['close connection', 'close server']:
+                conn.close()
+                break
+
+            # NOTE: Not perfect but insures we don't lock up the connection for too long.
+            end_time = time.perf_counter()
+            if (end_time - start_time) > self._ipc_timeout:
+                conn.close()
+                break
+
+
+    def send_manager_ipc_message(self, message: str) -> None:
+        try:
+            if self._conn_type == "socket":
+                conn = Client(address=self._manager_ipc_address, family="AF_UNIX", authkey=self._manager_ipc_authkey)
+            elif "unsecured" not in self._conn_type:
+                conn = Client((self._ipc_address, self._ipc_port), authkey=self._ipc_authkey)
+            else:
+                conn = Client((self._ipc_address, self._ipc_port))
+
+            conn.send( f"CLIENT|{ base64.b64encode(message.encode("utf-8")).decode("utf-8")  }" )
+            conn.close()
+        except ConnectionRefusedError as e:
+            logger.error("Connection refused...")
+        except Exception as e:
+            logger.error( repr(e) )
+
+
+    def send_ipc_message(self, message: str = "Empty Data...") -> None:
+        try:
+            if self._conn_type == "socket":
+                conn = Client(address=self._ipc_address, family="AF_UNIX", authkey=self._ipc_authkey)
+            elif "unsecured" not in self._conn_type:
+                conn = Client((self._ipc_address, self._ipc_port), authkey=self._ipc_authkey)
+            else:
+                conn = Client((self._ipc_address, self._ipc_port))
+
+            conn.send(message)
+            conn.close()
+        except ConnectionRefusedError as e:
+            logger.error("Connection refused...")
+        except Exception as e:
+            logger.error( repr(e) )
+
+    def send_test_ipc_message(self, message: str = "Empty Data...") -> None:
+        try:
+            if self._conn_type == "socket":
+                conn = Client(address=self._ipc_address, family="AF_UNIX", authkey=self._ipc_authkey)
+            elif "unsecured" not in self._conn_type:
+                conn = Client((self._ipc_address, self._ipc_port), authkey=self._ipc_authkey)
+            else:
+                conn = Client((self._ipc_address, self._ipc_port))
+
+            conn.send(message)
+            conn.close()
+        except ConnectionRefusedError as e:
+            if self._conn_type == "socket":
+                logger.error("LSP Socket no longer valid.... Removing.")
+                os.unlink(self._ipc_address)
+        except Exception as e:
+            logger.error( repr(e) )

plugins/gtksourceview/lsp_manager/lsp_message_structs.py

@@ -0,0 +1,41 @@
+# Python imports
+from dataclasses import dataclass
+import json
+
+# Lib imports
+
+# Application imports
+
+
+
+def get_message_obj(data: str):
+    return json.loads(data)
+
+
+@dataclass
+class LSPResponseRequest(object):
+        """
+        Constructs a new LSP Response Request instance.
+
+        :param id result: The id of the given message.
+        :param dict result: The arguments of the given method.
+        """
+        jsonrpc: str
+        id: int
+        result: dict
+
+@dataclass
+class LSPResponseNotification(object):
+        """
+        Constructs a new LSP Response Notification instance.
+
+        :param str method: The type of lsp notification being made.
+        :params dict result: The arguments of the given method.
+        """
+        jsonrpc: str
+        method: str
+        params: dict
+
+
+class LSPResponseTypes(LSPResponseRequest, LSPResponseNotification):
+    ...

plugins/gtksourceview/lsp_manager/plugin.py

@@ -1,4 +1,5 @@
 # Python imports
+import signal
 import subprocess
 import json
 
@@ -9,7 +10,7 @@ from gi.repository import Gtk
 
 # Application imports
 from plugins.plugin_base import PluginBase
-from .websockets.sync.client import connect 
+from .client_ipc import ClientIPC
 
 
 
@@ -90,7 +91,27 @@ class Plugin(PluginBase):
 
     def start_lsp_manager(self, button):
         if self.lsp_manager_proc: return
-        self.lsp_manager_proc = subprocess.Popen(["lsp-manager"])
+        self.lsp_manager_proc = subprocess.Popen(["python", "/opt/lsp-manager.zip"])
+        # self.lsp_manager_proc = subprocess.Popen(["lsp-manager"])
+        self._load_client_ipc_server()
+
+    def _load_client_ipc_server(self):
+        self.client_ipc = ClientIPC()
+        self._ipc_realization_check(self.client_ipc)
+
+        if not self.client_ipc.is_ipc_alive:
+            raise AppLaunchException(f"LSP IPC Server Already Exists...")
+
+    def _ipc_realization_check(self, ipc_server):
+        try:
+            ipc_server.create_ipc_listener()
+        except Exception:
+            ipc_server.send_test_ipc_message()
+
+        try:
+            ipc_server.create_ipc_listener()
+        except Exception as e:
+            ...
 
     def stop_lsp_manager(self, button = None):
         if not self.lsp_manager_proc: return
@@ -99,6 +120,7 @@ class Plugin(PluginBase):
             return
 
         self.lsp_manager_proc.terminate()
+        self.client_ipc.is_ipc_alive = False
         self.lsp_manager_proc = None
 
     def _lsp_did_open(self, language_id, uri, text):
@@ -122,11 +144,12 @@ class Plugin(PluginBase):
     def _lsp_did_close(self):
         if not self.lsp_manager_proc: return
 
-    def _lsp_did_change(self, language_id, buffer):
+    def _lsp_did_change(self, language_id, uri, buffer):
         if not self.lsp_manager_proc: return
 
         iter   = buffer.get_iter_at_mark( buffer.get_insert() )
         line   = iter.get_line()
+        column = iter.get_line_offset()
         start  = iter.copy()
         end    = iter.copy()
 
@@ -139,9 +162,9 @@ class Plugin(PluginBase):
             "method": "textDocument/didChange",
             "language_id": language_id,
             "uri": uri,
-            "text": text
+            "text": text,
-            "line": -1,
+            "line": line,
-            "column": -1,
+            "column": column,
             "char": ""
         }
 
@@ -190,11 +213,5 @@ class Plugin(PluginBase):
 
         self.send_message(data)
 
-
     def send_message(self, data: dict):
-        with connect(f"ws://{ self.ws_config['host'] }:{ self.ws_config['port'] }") as websocket:
+        self.client_ipc.send_manager_ipc_message( json.dumps(data) )
-            websocket.send(
-                json.dumps(data)
-            )
-            message = websocket.recv()
-            print(f"Received: {message}")

plugins/gtksourceview/lsp_manager/websockets/__init__.py

@@ -1,199 +0,0 @@
-from __future__ import annotations
-
-import typing
-
-from .imports import lazy_import
-from .version import version as __version__  # noqa: F401
-
-
-__all__ = [
-    # .client
-    "ClientProtocol",
-    # .datastructures
-    "Headers",
-    "HeadersLike",
-    "MultipleValuesError",
-    # .exceptions
-    "ConcurrencyError",
-    "ConnectionClosed",
-    "ConnectionClosedError",
-    "ConnectionClosedOK",
-    "DuplicateParameter",
-    "InvalidHandshake",
-    "InvalidHeader",
-    "InvalidHeaderFormat",
-    "InvalidHeaderValue",
-    "InvalidOrigin",
-    "InvalidParameterName",
-    "InvalidParameterValue",
-    "InvalidState",
-    "InvalidStatus",
-    "InvalidUpgrade",
-    "InvalidURI",
-    "NegotiationError",
-    "PayloadTooBig",
-    "ProtocolError",
-    "SecurityError",
-    "WebSocketException",
-    "WebSocketProtocolError",
-    # .legacy.auth
-    "BasicAuthWebSocketServerProtocol",
-    "basic_auth_protocol_factory",
-    # .legacy.client
-    "WebSocketClientProtocol",
-    "connect",
-    "unix_connect",
-    # .legacy.exceptions
-    "AbortHandshake",
-    "InvalidMessage",
-    "InvalidStatusCode",
-    "RedirectHandshake",
-    # .legacy.protocol
-    "WebSocketCommonProtocol",
-    # .legacy.server
-    "WebSocketServer",
-    "WebSocketServerProtocol",
-    "broadcast",
-    "serve",
-    "unix_serve",
-    # .server
-    "ServerProtocol",
-    # .typing
-    "Data",
-    "ExtensionName",
-    "ExtensionParameter",
-    "LoggerLike",
-    "StatusLike",
-    "Origin",
-    "Subprotocol",
-]
-
-# When type checking, import non-deprecated aliases eagerly. Else, import on demand.
-if typing.TYPE_CHECKING:
-    from .client import ClientProtocol
-    from .datastructures import Headers, HeadersLike, MultipleValuesError
-    from .exceptions import (
-        ConcurrencyError,
-        ConnectionClosed,
-        ConnectionClosedError,
-        ConnectionClosedOK,
-        DuplicateParameter,
-        InvalidHandshake,
-        InvalidHeader,
-        InvalidHeaderFormat,
-        InvalidHeaderValue,
-        InvalidOrigin,
-        InvalidParameterName,
-        InvalidParameterValue,
-        InvalidState,
-        InvalidStatus,
-        InvalidUpgrade,
-        InvalidURI,
-        NegotiationError,
-        PayloadTooBig,
-        ProtocolError,
-        SecurityError,
-        WebSocketException,
-        WebSocketProtocolError,
-    )
-    from .legacy.auth import (
-        BasicAuthWebSocketServerProtocol,
-        basic_auth_protocol_factory,
-    )
-    from .legacy.client import WebSocketClientProtocol, connect, unix_connect
-    from .legacy.exceptions import (
-        AbortHandshake,
-        InvalidMessage,
-        InvalidStatusCode,
-        RedirectHandshake,
-    )
-    from .legacy.protocol import WebSocketCommonProtocol
-    from .legacy.server import (
-        WebSocketServer,
-        WebSocketServerProtocol,
-        broadcast,
-        serve,
-        unix_serve,
-    )
-    from .server import ServerProtocol
-    from .typing import (
-        Data,
-        ExtensionName,
-        ExtensionParameter,
-        LoggerLike,
-        Origin,
-        StatusLike,
-        Subprotocol,
-    )
-else:
-    lazy_import(
-        globals(),
-        aliases={
-            # .client
-            "ClientProtocol": ".client",
-            # .datastructures
-            "Headers": ".datastructures",
-            "HeadersLike": ".datastructures",
-            "MultipleValuesError": ".datastructures",
-            # .exceptions
-            "ConcurrencyError": ".exceptions",
-            "ConnectionClosed": ".exceptions",
-            "ConnectionClosedError": ".exceptions",
-            "ConnectionClosedOK": ".exceptions",
-            "DuplicateParameter": ".exceptions",
-            "InvalidHandshake": ".exceptions",
-            "InvalidHeader": ".exceptions",
-            "InvalidHeaderFormat": ".exceptions",
-            "InvalidHeaderValue": ".exceptions",
-            "InvalidOrigin": ".exceptions",
-            "InvalidParameterName": ".exceptions",
-            "InvalidParameterValue": ".exceptions",
-            "InvalidState": ".exceptions",
-            "InvalidStatus": ".exceptions",
-            "InvalidUpgrade": ".exceptions",
-            "InvalidURI": ".exceptions",
-            "NegotiationError": ".exceptions",
-            "PayloadTooBig": ".exceptions",
-            "ProtocolError": ".exceptions",
-            "SecurityError": ".exceptions",
-            "WebSocketException": ".exceptions",
-            "WebSocketProtocolError": ".exceptions",
-            # .legacy.auth
-            "BasicAuthWebSocketServerProtocol": ".legacy.auth",
-            "basic_auth_protocol_factory": ".legacy.auth",
-            # .legacy.client
-            "WebSocketClientProtocol": ".legacy.client",
-            "connect": ".legacy.client",
-            "unix_connect": ".legacy.client",
-            # .legacy.exceptions
-            "AbortHandshake": ".legacy.exceptions",
-            "InvalidMessage": ".legacy.exceptions",
-            "InvalidStatusCode": ".legacy.exceptions",
-            "RedirectHandshake": ".legacy.exceptions",
-            # .legacy.protocol
-            "WebSocketCommonProtocol": ".legacy.protocol",
-            # .legacy.server
-            "WebSocketServer": ".legacy.server",
-            "WebSocketServerProtocol": ".legacy.server",
-            "broadcast": ".legacy.server",
-            "serve": ".legacy.server",
-            "unix_serve": ".legacy.server",
-            # .server
-            "ServerProtocol": ".server",
-            # .typing
-            "Data": ".typing",
-            "ExtensionName": ".typing",
-            "ExtensionParameter": ".typing",
-            "LoggerLike": ".typing",
-            "Origin": ".typing",
-            "StatusLike": ".typing",
-            "Subprotocol": ".typing",
-        },
-        deprecated_aliases={
-            # deprecated in 9.0 - 2021-09-01
-            "framing": ".legacy",
-            "handshake": ".legacy",
-            "parse_uri": ".uri",
-            "WebSocketURI": ".uri",
-        },
-    )

plugins/gtksourceview/lsp_manager/websockets/__main__.py

@@ -1,159 +0,0 @@
-from __future__ import annotations
-
-import argparse
-import os
-import signal
-import sys
-import threading
-
-
-try:
-    import readline  # noqa: F401
-except ImportError:  # Windows has no `readline` normally
-    pass
-
-from .sync.client import ClientConnection, connect
-from .version import version as websockets_version
-
-
-if sys.platform == "win32":
-
-    def win_enable_vt100() -> None:
-        """
-        Enable VT-100 for console output on Windows.
-
-        See also https://github.com/python/cpython/issues/73245.
-
-        """
-        import ctypes
-
-        STD_OUTPUT_HANDLE = ctypes.c_uint(-11)
-        INVALID_HANDLE_VALUE = ctypes.c_uint(-1)
-        ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x004
-
-        handle = ctypes.windll.kernel32.GetStdHandle(STD_OUTPUT_HANDLE)
-        if handle == INVALID_HANDLE_VALUE:
-            raise RuntimeError("unable to obtain stdout handle")
-
-        cur_mode = ctypes.c_uint()
-        if ctypes.windll.kernel32.GetConsoleMode(handle, ctypes.byref(cur_mode)) == 0:
-            raise RuntimeError("unable to query current console mode")
-
-        # ctypes ints lack support for the required bit-OR operation.
-        # Temporarily convert to Py int, do the OR and convert back.
-        py_int_mode = int.from_bytes(cur_mode, sys.byteorder)
-        new_mode = ctypes.c_uint(py_int_mode | ENABLE_VIRTUAL_TERMINAL_PROCESSING)
-
-        if ctypes.windll.kernel32.SetConsoleMode(handle, new_mode) == 0:
-            raise RuntimeError("unable to set console mode")
-
-
-def print_during_input(string: str) -> None:
-    sys.stdout.write(
-        # Save cursor position
-        "\N{ESC}7"
-        # Add a new line
-        "\N{LINE FEED}"
-        # Move cursor up
-        "\N{ESC}[A"
-        # Insert blank line, scroll last line down
-        "\N{ESC}[L"
-        # Print string in the inserted blank line
-        f"{string}\N{LINE FEED}"
-        # Restore cursor position
-        "\N{ESC}8"
-        # Move cursor down
-        "\N{ESC}[B"
-    )
-    sys.stdout.flush()
-
-
-def print_over_input(string: str) -> None:
-    sys.stdout.write(
-        # Move cursor to beginning of line
-        "\N{CARRIAGE RETURN}"
-        # Delete current line
-        "\N{ESC}[K"
-        # Print string
-        f"{string}\N{LINE FEED}"
-    )
-    sys.stdout.flush()
-
-
-def print_incoming_messages(websocket: ClientConnection, stop: threading.Event) -> None:
-    for message in websocket:
-        if isinstance(message, str):
-            print_during_input("< " + message)
-        else:
-            print_during_input("< (binary) " + message.hex())
-    if not stop.is_set():
-        # When the server closes the connection, raise KeyboardInterrupt
-        # in the main thread to exit the program.
-        if sys.platform == "win32":
-            ctrl_c = signal.CTRL_C_EVENT
-        else:
-            ctrl_c = signal.SIGINT
-        os.kill(os.getpid(), ctrl_c)
-
-
-def main() -> None:
-    # Parse command line arguments.
-    parser = argparse.ArgumentParser(
-        prog="python -m websockets",
-        description="Interactive WebSocket client.",
-        add_help=False,
-    )
-    group = parser.add_mutually_exclusive_group()
-    group.add_argument("--version", action="store_true")
-    group.add_argument("uri", metavar="<uri>", nargs="?")
-    args = parser.parse_args()
-
-    if args.version:
-        print(f"websockets {websockets_version}")
-        return
-
-    if args.uri is None:
-        parser.error("the following arguments are required: <uri>")
-
-    # If we're on Windows, enable VT100 terminal support.
-    if sys.platform == "win32":
-        try:
-            win_enable_vt100()
-        except RuntimeError as exc:
-            sys.stderr.write(
-                f"Unable to set terminal to VT100 mode. This is only "
-                f"supported since Win10 anniversary update. Expect "
-                f"weird symbols on the terminal.\nError: {exc}\n"
-            )
-            sys.stderr.flush()
-
-    try:
-        websocket = connect(args.uri)
-    except Exception as exc:
-        print(f"Failed to connect to {args.uri}: {exc}.")
-        sys.exit(1)
-    else:
-        print(f"Connected to {args.uri}.")
-
-    stop = threading.Event()
-
-    # Start the thread that reads messages from the connection.
-    thread = threading.Thread(target=print_incoming_messages, args=(websocket, stop))
-    thread.start()
-
-    # Read from stdin in the main thread in order to receive signals.
-    try:
-        while True:
-            # Since there's no size limit, put_nowait is identical to put.
-            message = input("> ")
-            websocket.send(message)
-    except (KeyboardInterrupt, EOFError):  # ^C, ^D
-        stop.set()
-        websocket.close()
-        print_over_input("Connection closed.")
-
-    thread.join()
-
-
-if __name__ == "__main__":
-    main()

plugins/gtksourceview/lsp_manager/websockets/asyncio/async_timeout.py

@@ -1,282 +0,0 @@
-# From https://github.com/aio-libs/async-timeout/blob/master/async_timeout/__init__.py
-# Licensed under the Apache License (Apache-2.0)
-
-import asyncio
-import enum
-import sys
-import warnings
-from types import TracebackType
-from typing import Optional, Type
-
-
-if sys.version_info >= (3, 11):
-    from typing import final
-else:
-    # From https://github.com/python/typing_extensions/blob/main/src/typing_extensions.py
-    # Licensed under the Python Software Foundation License (PSF-2.0)
-
-    # @final exists in 3.8+, but we backport it for all versions
-    # before 3.11 to keep support for the __final__ attribute.
-    # See https://bugs.python.org/issue46342
-    def final(f):
-        """This decorator can be used to indicate to type checkers that
-        the decorated method cannot be overridden, and decorated class
-        cannot be subclassed. For example:
-
-            class Base:
-                @final
-                def done(self) -> None:
-                    ...
-            class Sub(Base):
-                def done(self) -> None:  # Error reported by type checker
-                    ...
-            @final
-            class Leaf:
-                ...
-            class Other(Leaf):  # Error reported by type checker
-                ...
-
-        There is no runtime checking of these properties. The decorator
-        sets the ``__final__`` attribute to ``True`` on the decorated object
-        to allow runtime introspection.
-        """
-        try:
-            f.__final__ = True
-        except (AttributeError, TypeError):
-            # Skip the attribute silently if it is not writable.
-            # AttributeError happens if the object has __slots__ or a
-            # read-only property, TypeError if it's a builtin class.
-            pass
-        return f
-
-    # End https://github.com/python/typing_extensions/blob/main/src/typing_extensions.py
-
-
-if sys.version_info >= (3, 11):
-
-    def _uncancel_task(task: "asyncio.Task[object]") -> None:
-        task.uncancel()
-
-else:
-
-    def _uncancel_task(task: "asyncio.Task[object]") -> None:
-        pass
-
-
-__version__ = "4.0.3"
-
-
-__all__ = ("timeout", "timeout_at", "Timeout")
-
-
-def timeout(delay: Optional[float]) -> "Timeout":
-    """timeout context manager.
-
-    Useful in cases when you want to apply timeout logic around block
-    of code or in cases when asyncio.wait_for is not suitable. For example:
-
-    >>> async with timeout(0.001):
-    ...     async with aiohttp.get('https://github.com') as r:
-    ...         await r.text()
-
-
-    delay - value in seconds or None to disable timeout logic
-    """
-    loop = asyncio.get_running_loop()
-    if delay is not None:
-        deadline = loop.time() + delay  # type: Optional[float]
-    else:
-        deadline = None
-    return Timeout(deadline, loop)
-
-
-def timeout_at(deadline: Optional[float]) -> "Timeout":
-    """Schedule the timeout at absolute time.
-
-    deadline argument points on the time in the same clock system
-    as loop.time().
-
-    Please note: it is not POSIX time but a time with
-    undefined starting base, e.g. the time of the system power on.
-
-    >>> async with timeout_at(loop.time() + 10):
-    ...     async with aiohttp.get('https://github.com') as r:
-    ...         await r.text()
-
-
-    """
-    loop = asyncio.get_running_loop()
-    return Timeout(deadline, loop)
-
-
-class _State(enum.Enum):
-    INIT = "INIT"
-    ENTER = "ENTER"
-    TIMEOUT = "TIMEOUT"
-    EXIT = "EXIT"
-
-
-@final
-class Timeout:
-    # Internal class, please don't instantiate it directly
-    # Use timeout() and timeout_at() public factories instead.
-    #
-    # Implementation note: `async with timeout()` is preferred
-    # over `with timeout()`.
-    # While technically the Timeout class implementation
-    # doesn't need to be async at all,
-    # the `async with` statement explicitly points that
-    # the context manager should be used from async function context.
-    #
-    # This design allows to avoid many silly misusages.
-    #
-    # TimeoutError is raised immediately when scheduled
-    # if the deadline is passed.
-    # The purpose is to time out as soon as possible
-    # without waiting for the next await expression.
-
-    __slots__ = ("_deadline", "_loop", "_state", "_timeout_handler", "_task")
-
-    def __init__(
-        self, deadline: Optional[float], loop: asyncio.AbstractEventLoop
-    ) -> None:
-        self._loop = loop
-        self._state = _State.INIT
-
-        self._task: Optional["asyncio.Task[object]"] = None
-        self._timeout_handler = None  # type: Optional[asyncio.Handle]
-        if deadline is None:
-            self._deadline = None  # type: Optional[float]
-        else:
-            self.update(deadline)
-
-    def __enter__(self) -> "Timeout":
-        warnings.warn(
-            "with timeout() is deprecated, use async with timeout() instead",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        self._do_enter()
-        return self
-
-    def __exit__(
-        self,
-        exc_type: Optional[Type[BaseException]],
-        exc_val: Optional[BaseException],
-        exc_tb: Optional[TracebackType],
-    ) -> Optional[bool]:
-        self._do_exit(exc_type)
-        return None
-
-    async def __aenter__(self) -> "Timeout":
-        self._do_enter()
-        return self
-
-    async def __aexit__(
-        self,
-        exc_type: Optional[Type[BaseException]],
-        exc_val: Optional[BaseException],
-        exc_tb: Optional[TracebackType],
-    ) -> Optional[bool]:
-        self._do_exit(exc_type)
-        return None
-
-    @property
-    def expired(self) -> bool:
-        """Is timeout expired during execution?"""
-        return self._state == _State.TIMEOUT
-
-    @property
-    def deadline(self) -> Optional[float]:
-        return self._deadline
-
-    def reject(self) -> None:
-        """Reject scheduled timeout if any."""
-        # cancel is maybe better name but
-        # task.cancel() raises CancelledError in asyncio world.
-        if self._state not in (_State.INIT, _State.ENTER):
-            raise RuntimeError(f"invalid state {self._state.value}")
-        self._reject()
-
-    def _reject(self) -> None:
-        self._task = None
-        if self._timeout_handler is not None:
-            self._timeout_handler.cancel()
-            self._timeout_handler = None
-
-    def shift(self, delay: float) -> None:
-        """Advance timeout on delay seconds.
-
-        The delay can be negative.
-
-        Raise RuntimeError if shift is called when deadline is not scheduled
-        """
-        deadline = self._deadline
-        if deadline is None:
-            raise RuntimeError("cannot shift timeout if deadline is not scheduled")
-        self.update(deadline + delay)
-
-    def update(self, deadline: float) -> None:
-        """Set deadline to absolute value.
-
-        deadline argument points on the time in the same clock system
-        as loop.time().
-
-        If new deadline is in the past the timeout is raised immediately.
-
-        Please note: it is not POSIX time but a time with
-        undefined starting base, e.g. the time of the system power on.
-        """
-        if self._state == _State.EXIT:
-            raise RuntimeError("cannot reschedule after exit from context manager")
-        if self._state == _State.TIMEOUT:
-            raise RuntimeError("cannot reschedule expired timeout")
-        if self._timeout_handler is not None:
-            self._timeout_handler.cancel()
-        self._deadline = deadline
-        if self._state != _State.INIT:
-            self._reschedule()
-
-    def _reschedule(self) -> None:
-        assert self._state == _State.ENTER
-        deadline = self._deadline
-        if deadline is None:
-            return
-
-        now = self._loop.time()
-        if self._timeout_handler is not None:
-            self._timeout_handler.cancel()
-
-        self._task = asyncio.current_task()
-        if deadline <= now:
-            self._timeout_handler = self._loop.call_soon(self._on_timeout)
-        else:
-            self._timeout_handler = self._loop.call_at(deadline, self._on_timeout)
-
-    def _do_enter(self) -> None:
-        if self._state != _State.INIT:
-            raise RuntimeError(f"invalid state {self._state.value}")
-        self._state = _State.ENTER
-        self._reschedule()
-
-    def _do_exit(self, exc_type: Optional[Type[BaseException]]) -> None:
-        if exc_type is asyncio.CancelledError and self._state == _State.TIMEOUT:
-            assert self._task is not None
-            _uncancel_task(self._task)
-            self._timeout_handler = None
-            self._task = None
-            raise asyncio.TimeoutError
-        # timeout has not expired
-        self._state = _State.EXIT
-        self._reject()
-        return None
-
-    def _on_timeout(self) -> None:
-        assert self._task is not None
-        self._task.cancel()
-        self._state = _State.TIMEOUT
-        # drop the reference early
-        self._timeout_handler = None
-
-
-# End https://github.com/aio-libs/async-timeout/blob/master/async_timeout/__init__.py

plugins/gtksourceview/lsp_manager/websockets/asyncio/client.py

@@ -1,561 +0,0 @@
-from __future__ import annotations
-
-import asyncio
-import logging
-import os
-import urllib.parse
-from types import TracebackType
-from typing import Any, AsyncIterator, Callable, Generator, Sequence
-
-from ..client import ClientProtocol, backoff
-from ..datastructures import HeadersLike
-from ..exceptions import InvalidStatus, SecurityError
-from ..extensions.base import ClientExtensionFactory
-from ..extensions.permessage_deflate import enable_client_permessage_deflate
-from ..headers import validate_subprotocols
-from ..http11 import USER_AGENT, Response
-from ..protocol import CONNECTING, Event
-from ..typing import LoggerLike, Origin, Subprotocol
-from ..uri import WebSocketURI, parse_uri
-from .compatibility import TimeoutError, asyncio_timeout
-from .connection import Connection
-
-
-__all__ = ["connect", "unix_connect", "ClientConnection"]
-
-MAX_REDIRECTS = int(os.environ.get("WEBSOCKETS_MAX_REDIRECTS", "10"))
-
-
-class ClientConnection(Connection):
-    """
-    :mod:`asyncio` implementation of a WebSocket client connection.
-
-    :class:`ClientConnection` provides :meth:`recv` and :meth:`send` coroutines
-    for receiving and sending messages.
-
-    It supports asynchronous iteration to receive messages::
-
-        async for message in websocket:
-            await 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``, ``max_queue``,
-    and ``write_limit`` arguments the same meaning as in :func:`connect`.
-
-    Args:
-        protocol: Sans-I/O connection.
-
-    """
-
-    def __init__(
-        self,
-        protocol: ClientProtocol,
-        *,
-        ping_interval: float | None = 20,
-        ping_timeout: float | None = 20,
-        close_timeout: float | None = 10,
-        max_queue: int | tuple[int, int | None] = 16,
-        write_limit: int | tuple[int, int | None] = 2**15,
-    ) -> None:
-        self.protocol: ClientProtocol
-        super().__init__(
-            protocol,
-            ping_interval=ping_interval,
-            ping_timeout=ping_timeout,
-            close_timeout=close_timeout,
-            max_queue=max_queue,
-            write_limit=write_limit,
-        )
-        self.response_rcvd: asyncio.Future[None] = self.loop.create_future()
-
-    async def handshake(
-        self,
-        additional_headers: HeadersLike | None = None,
-        user_agent_header: str | None = USER_AGENT,
-    ) -> None:
-        """
-        Perform the opening handshake.
-
-        """
-        async 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:
-                self.request.headers["User-Agent"] = user_agent_header
-            self.protocol.send_request(self.request)
-
-        await asyncio.wait(
-            [self.response_rcvd, self.connection_lost_waiter],
-            return_when=asyncio.FIRST_COMPLETED,
-        )
-
-        # self.protocol.handshake_exc is always 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_result(None)
-        # Later events - frames.
-        else:
-            super().process_event(event)
-
-
-def process_exception(exc: Exception) -> Exception | None:
-    """
-    Determine whether a connection error is retryable or fatal.
-
-    When reconnecting automatically with ``async for ... in connect(...)``, if a
-    connection attempt fails, :func:`process_exception` is called to determine
-    whether to retry connecting or to raise the exception.
-
-    This function defines the default behavior, which is to retry on:
-
-    * :exc:`EOFError`, :exc:`OSError`, :exc:`asyncio.TimeoutError`: network
-      errors;
-    * :exc:`~websockets.exceptions.InvalidStatus` when the status code is 500,
-      502, 503, or 504: server or proxy errors.
-
-    All other exceptions are considered fatal.
-
-    You can change this behavior with the ``process_exception`` argument of
-    :func:`connect`.
-
-    Return :obj:`None` if the exception is retryable i.e. when the error could
-    be transient and trying to reconnect with the same parameters could succeed.
-    The exception will be logged at the ``INFO`` level.
-
-    Return an exception, either ``exc`` or a new exception, if the exception is
-    fatal i.e. when trying to reconnect will most likely produce the same error.
-    That exception will be raised, breaking out of the retry loop.
-
-    """
-    if isinstance(exc, (EOFError, OSError, asyncio.TimeoutError)):
-        return None
-    if isinstance(exc, InvalidStatus) and exc.response.status_code in [
-        500,  # Internal Server Error
-        502,  # Bad Gateway
-        503,  # Service Unavailable
-        504,  # Gateway Timeout
-    ]:
-        return None
-    return exc
-
-
-# This is spelled in lower case because it's exposed as a callable in the API.
-class connect:
-    """
-    Connect to the WebSocket server at ``uri``.
-
-    This coroutine returns a :class:`ClientConnection` instance, which you can
-    use to send and receive messages.
-
-    :func:`connect` may be used as an asynchronous context manager::
-
-        from websockets.asyncio.client import connect
-
-        async with connect(...) as websocket:
-            ...
-
-    The connection is closed automatically when exiting the context.
-
-    :func:`connect` can be used as an infinite asynchronous iterator to
-    reconnect automatically on errors::
-
-        async for websocket in connect(...):
-            try:
-                ...
-            except websockets.ConnectionClosed:
-                continue
-
-    If the connection fails with a transient error, it is retried with
-    exponential backoff. If it fails with a fatal error, the exception is
-    raised, breaking out of the loop.
-
-    The connection is closed automatically after each iteration of the loop.
-
-    Args:
-        uri: URI of the WebSocket server.
-        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.
-        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.
-        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.
-        process_exception: When reconnecting automatically, tell whether an
-            error is transient or fatal. The default behavior is defined by
-            :func:`process_exception`. Refer to its documentation for details.
-        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.
-        write_limit: High-water mark of write buffer in bytes. It is passed to
-            :meth:`~asyncio.WriteTransport.set_write_buffer_limits`. It defaults
-            to 32 KiB. You may pass a ``(high, low)`` tuple to set the
-            high-water and low-water marks.
-        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 the event loop's
-    :meth:`~asyncio.loop.create_connection` method.
-
-    For example:
-
-    * You can set ``ssl`` to a :class:`~ssl.SSLContext` to enforce TLS settings.
-      When connecting to a ``wss://`` URI, if ``ssl`` isn't provided, a TLS
-      context is created with :func:`~ssl.create_default_context`.
-
-    * You can set ``server_hostname`` to override the host name from ``uri`` in
-      the TLS handshake.
-
-    * You can set ``host`` and ``port`` to connect to a different host and port
-      from those found in ``uri``. This only changes the destination of the TCP
-      connection. The host name from ``uri`` is still used in the TLS handshake
-      for secure connections and in the ``Host`` header.
-
-    * You can set ``sock`` to provide a preexisting TCP socket. You may call
-      :func:`socket.create_connection` (not to be confused with the event loop's
-      :meth:`~asyncio.loop.create_connection` method) to create a suitable
-      client socket and customize it.
-
-    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.
-
-    """
-
-    def __init__(
-        self,
-        uri: str,
-        *,
-        # WebSocket
-        origin: Origin | None = None,
-        extensions: Sequence[ClientExtensionFactory] | None = None,
-        subprotocols: Sequence[Subprotocol] | None = None,
-        additional_headers: HeadersLike | None = None,
-        user_agent_header: str | None = USER_AGENT,
-        compression: str | None = "deflate",
-        process_exception: Callable[[Exception], Exception | None] = process_exception,
-        # 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 | tuple[int, int | None] = 16,
-        write_limit: int | tuple[int, int | None] = 2**15,
-        # Logging
-        logger: LoggerLike | None = None,
-        # Escape hatch for advanced customization
-        create_connection: type[ClientConnection] | None = None,
-        # Other keyword arguments are passed to loop.create_connection
-        **kwargs: Any,
-    ) -> None:
-        self.uri = uri
-
-        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 logger is None:
-            logger = logging.getLogger("websockets.client")
-
-        if create_connection is None:
-            create_connection = ClientConnection
-
-        def protocol_factory(wsuri: WebSocketURI) -> ClientConnection:
-            # This is a protocol in the Sans-I/O implementation of websockets.
-            protocol = ClientProtocol(
-                wsuri,
-                origin=origin,
-                extensions=extensions,
-                subprotocols=subprotocols,
-                max_size=max_size,
-                logger=logger,
-            )
-            # This is a connection in websockets and a protocol in asyncio.
-            connection = create_connection(
-                protocol,
-                ping_interval=ping_interval,
-                ping_timeout=ping_timeout,
-                close_timeout=close_timeout,
-                max_queue=max_queue,
-                write_limit=write_limit,
-            )
-            return connection
-
-        self.protocol_factory = protocol_factory
-        self.handshake_args = (
-            additional_headers,
-            user_agent_header,
-        )
-        self.process_exception = process_exception
-        self.open_timeout = open_timeout
-        self.logger = logger
-        self.connection_kwargs = kwargs
-
-    async def create_connection(self) -> ClientConnection:
-        """Create TCP or Unix connection."""
-        loop = asyncio.get_running_loop()
-
-        wsuri = parse_uri(self.uri)
-        kwargs = self.connection_kwargs.copy()
-
-        def factory() -> ClientConnection:
-            return self.protocol_factory(wsuri)
-
-        if wsuri.secure:
-            kwargs.setdefault("ssl", True)
-            kwargs.setdefault("server_hostname", wsuri.host)
-            if kwargs.get("ssl") is None:
-                raise TypeError("ssl=None is incompatible with a wss:// URI")
-        else:
-            if kwargs.get("ssl") is not None:
-                raise TypeError("ssl argument is incompatible with a ws:// URI")
-
-        if kwargs.pop("unix", False):
-            _, connection = await loop.create_unix_connection(factory, **kwargs)
-        else:
-            if kwargs.get("sock") is None:
-                kwargs.setdefault("host", wsuri.host)
-                kwargs.setdefault("port", wsuri.port)
-            _, connection = await loop.create_connection(factory, **kwargs)
-        return connection
-
-    def process_redirect(self, exc: Exception) -> Exception | str:
-        """
-        Determine whether a connection error is a redirect that can be followed.
-
-        Return the new URI if it's a valid redirect. Else, return an exception.
-
-        """
-        if not (
-            isinstance(exc, InvalidStatus)
-            and exc.response.status_code
-            in [
-                300,  # Multiple Choices
-                301,  # Moved Permanently
-                302,  # Found
-                303,  # See Other
-                307,  # Temporary Redirect
-                308,  # Permanent Redirect
-            ]
-            and "Location" in exc.response.headers
-        ):
-            return exc
-
-        old_wsuri = parse_uri(self.uri)
-        new_uri = urllib.parse.urljoin(self.uri, exc.response.headers["Location"])
-        new_wsuri = parse_uri(new_uri)
-
-        # If connect() received a socket, it is closed and cannot be reused.
-        if self.connection_kwargs.get("sock") is not None:
-            return ValueError(
-                f"cannot follow redirect to {new_uri} with a preexisting socket"
-            )
-
-        # TLS downgrade is forbidden.
-        if old_wsuri.secure and not new_wsuri.secure:
-            return SecurityError(f"cannot follow redirect to non-secure URI {new_uri}")
-
-        # Apply restrictions to cross-origin redirects.
-        if (
-            old_wsuri.secure != new_wsuri.secure
-            or old_wsuri.host != new_wsuri.host
-            or old_wsuri.port != new_wsuri.port
-        ):
-            # Cross-origin redirects on Unix sockets don't quite make sense.
-            if self.connection_kwargs.get("unix", False):
-                return ValueError(
-                    f"cannot follow cross-origin redirect to {new_uri} "
-                    f"with a Unix socket"
-                )
-
-            # Cross-origin redirects when host and port are overridden are ill-defined.
-            if (
-                self.connection_kwargs.get("host") is not None
-                or self.connection_kwargs.get("port") is not None
-            ):
-                return ValueError(
-                    f"cannot follow cross-origin redirect to {new_uri} "
-                    f"with an explicit host or port"
-                )
-
-        return new_uri
-
-    # ... = await connect(...)
-
-    def __await__(self) -> Generator[Any, None, ClientConnection]:
-        # Create a suitable iterator by calling __await__ on a coroutine.
-        return self.__await_impl__().__await__()
-
-    async def __await_impl__(self) -> ClientConnection:
-        try:
-            async with asyncio_timeout(self.open_timeout):
-                for _ in range(MAX_REDIRECTS):
-                    self.connection = await self.create_connection()
-                    try:
-                        await self.connection.handshake(*self.handshake_args)
-                    except asyncio.CancelledError:
-                        self.connection.close_transport()
-                        raise
-                    except Exception as exc:
-                        # Always close the connection even though keep-alive is
-                        # the default in HTTP/1.1 because create_connection ties
-                        # opening the network connection with initializing the
-                        # protocol. In the current design of connect(), there is
-                        # no easy way to reuse the network connection that works
-                        # in every case nor to reinitialize the protocol.
-                        self.connection.close_transport()
-
-                        uri_or_exc = self.process_redirect(exc)
-                        # Response is a valid redirect; follow it.
-                        if isinstance(uri_or_exc, str):
-                            self.uri = uri_or_exc
-                            continue
-                        # Response isn't a valid redirect; raise the exception.
-                        if uri_or_exc is exc:
-                            raise
-                        else:
-                            raise uri_or_exc from exc
-
-                    else:
-                        self.connection.start_keepalive()
-                        return self.connection
-                else:
-                    raise SecurityError(f"more than {MAX_REDIRECTS} redirects")
-
-        except TimeoutError:
-            # Re-raise exception with an informative error message.
-            raise TimeoutError("timed out during handshake") from None
-
-    # ... = yield from connect(...) - remove when dropping Python < 3.10
-
-    __iter__ = __await__
-
-    # async with connect(...) as ...: ...
-
-    async def __aenter__(self) -> ClientConnection:
-        return await self
-
-    async def __aexit__(
-        self,
-        exc_type: type[BaseException] | None,
-        exc_value: BaseException | None,
-        traceback: TracebackType | None,
-    ) -> None:
-        await self.connection.close()
-
-    # async for ... in connect(...):
-
-    async def __aiter__(self) -> AsyncIterator[ClientConnection]:
-        delays: Generator[float, None, None] | None = None
-        while True:
-            try:
-                async with self as protocol:
-                    yield protocol
-            except Exception as exc:
-                # Determine whether the exception is retryable or fatal.
-                # The API of process_exception is "return an exception or None";
-                # "raise an exception" is also supported because it's a frequent
-                # mistake. It isn't documented in order to keep the API simple.
-                try:
-                    new_exc = self.process_exception(exc)
-                except Exception as raised_exc:
-                    new_exc = raised_exc
-
-                # The connection failed with a fatal error.
-                # Raise the exception and exit the loop.
-                if new_exc is exc:
-                    raise
-                if new_exc is not None:
-                    raise new_exc from exc
-
-                # The connection failed with a retryable error.
-                # Start or continue backoff and reconnect.
-                if delays is None:
-                    delays = backoff()
-                delay = next(delays)
-                self.logger.info(
-                    "! connect failed; reconnecting in %.1f seconds",
-                    delay,
-                    exc_info=True,
-                )
-                await asyncio.sleep(delay)
-                continue
-
-            else:
-                # The connection succeeded. Reset backoff.
-                delays = None
-
-
-def unix_connect(
-    path: str | None = None,
-    uri: str | None = None,
-    **kwargs: Any,
-) -> connect:
-    """
-    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`` argument is provided, to
-            ``wss://localhost/``.
-
-    """
-    if uri is None:
-        if kwargs.get("ssl") is None:
-            uri = "ws://localhost/"
-        else:
-            uri = "wss://localhost/"
-    return connect(uri=uri, unix=True, path=path, **kwargs)

plugins/gtksourceview/lsp_manager/websockets/asyncio/compatibility.py

@@ -1,30 +0,0 @@
-from __future__ import annotations
-
-import sys
-
-
-__all__ = ["TimeoutError", "aiter", "anext", "asyncio_timeout", "asyncio_timeout_at"]
-
-
-if sys.version_info[:2] >= (3, 11):
-    TimeoutError = TimeoutError
-    aiter = aiter
-    anext = anext
-    from asyncio import (
-        timeout as asyncio_timeout,  # noqa: F401
-        timeout_at as asyncio_timeout_at,  # noqa: F401
-    )
-
-else:  # Python < 3.11
-    from asyncio import TimeoutError
-
-    def aiter(async_iterable):
-        return type(async_iterable).__aiter__(async_iterable)
-
-    async def anext(async_iterator):
-        return await type(async_iterator).__anext__(async_iterator)
-
-    from .async_timeout import (
-        timeout as asyncio_timeout,  # noqa: F401
-        timeout_at as asyncio_timeout_at,  # noqa: F401
-    )

plugins/gtksourceview/lsp_manager/websockets/asyncio/messages.py

@@ -1,293 +0,0 @@
-from __future__ import annotations
-
-import asyncio
-import codecs
-import collections
-from typing import (
-    Any,
-    AsyncIterator,
-    Callable,
-    Generic,
-    Iterable,
-    TypeVar,
-)
-
-from ..exceptions import ConcurrencyError
-from ..frames import OP_BINARY, OP_CONT, OP_TEXT, Frame
-from ..typing import Data
-
-
-__all__ = ["Assembler"]
-
-UTF8Decoder = codecs.getincrementaldecoder("utf-8")
-
-T = TypeVar("T")
-
-
-class SimpleQueue(Generic[T]):
-    """
-    Simplified version of :class:`asyncio.Queue`.
-
-    Provides only the subset of functionality needed by :class:`Assembler`.
-
-    """
-
-    def __init__(self) -> None:
-        self.loop = asyncio.get_running_loop()
-        self.get_waiter: asyncio.Future[None] | None = None
-        self.queue: collections.deque[T] = collections.deque()
-
-    def __len__(self) -> int:
-        return len(self.queue)
-
-    def put(self, item: T) -> None:
-        """Put an item into the queue without waiting."""
-        self.queue.append(item)
-        if self.get_waiter is not None and not self.get_waiter.done():
-            self.get_waiter.set_result(None)
-
-    async def get(self) -> T:
-        """Remove and return an item from the queue, waiting if necessary."""
-        if not self.queue:
-            if self.get_waiter is not None:
-                raise ConcurrencyError("get is already running")
-            self.get_waiter = self.loop.create_future()
-            try:
-                await self.get_waiter
-            finally:
-                self.get_waiter.cancel()
-                self.get_waiter = None
-        return self.queue.popleft()
-
-    def reset(self, items: Iterable[T]) -> None:
-        """Put back items into an empty, idle queue."""
-        assert self.get_waiter is None, "cannot reset() while get() is running"
-        assert not self.queue, "cannot reset() while queue isn't empty"
-        self.queue.extend(items)
-
-    def abort(self) -> None:
-        if self.get_waiter is not None and not self.get_waiter.done():
-            self.get_waiter.set_exception(EOFError("stream of frames ended"))
-        # Clear the queue to avoid storing unnecessary data in memory.
-        self.queue.clear()
-
-
-class Assembler:
-    """
-    Assemble messages from frames.
-
-    :class:`Assembler` expects only data frames. The stream of frames must
-    respect the protocol; if it doesn't, the behavior is undefined.
-
-    Args:
-        pause: Called when the buffer of frames goes above the high water mark;
-            should pause reading from the network.
-        resume: Called when the buffer of frames goes below the low water mark;
-            should resume reading from the network.
-
-    """
-
-    # coverage reports incorrectly: "line NN didn't jump to the function exit"
-    def __init__(  # pragma: no cover
-        self,
-        high: int = 16,
-        low: int | None = None,
-        pause: Callable[[], Any] = lambda: None,
-        resume: Callable[[], Any] = lambda: None,
-    ) -> None:
-        # Queue of incoming messages. Each item is a queue of frames.
-        self.frames: SimpleQueue[Frame] = SimpleQueue()
-
-        # We cannot put a hard limit on the size of the queue because a single
-        # call to Protocol.data_received() could produce thousands of frames,
-        # which must be buffered. Instead, we pause reading when the buffer goes
-        # above the high limit and we resume when it goes under the low limit.
-        if low is None:
-            low = high // 4
-        if low < 0:
-            raise ValueError("low must be positive or equal to zero")
-        if high < low:
-            raise ValueError("high must be greater than or equal to low")
-        self.high, self.low = high, low
-        self.pause = pause
-        self.resume = resume
-        self.paused = False
-
-        # This flag prevents concurrent calls to get() by user code.
-        self.get_in_progress = False
-
-        # This flag marks the end of the connection.
-        self.closed = False
-
-    async def get(self, decode: bool | None = None) -> Data:
-        """
-        Read the next message.
-
-        :meth:`get` returns a single :class:`str` or :class:`bytes`.
-
-        If the message is fragmented, :meth:`get` waits until the last frame is
-        received, then it reassembles the message and returns it. To receive
-        messages frame by frame, use :meth:`get_iter` instead.
-
-        Args:
-            decode: :obj:`False` disables UTF-8 decoding of text frames and
-                returns :class:`bytes`. :obj:`True` forces UTF-8 decoding of
-                binary frames and returns :class:`str`.
-
-        Raises:
-            EOFError: If the stream of frames has ended.
-            ConcurrencyError: If two coroutines run :meth:`get` or
-                :meth:`get_iter` concurrently.
-
-        """
-        if self.closed:
-            raise EOFError("stream of frames ended")
-
-        if self.get_in_progress:
-            raise ConcurrencyError("get() or get_iter() is already running")
-
-        # Locking with get_in_progress ensures only one coroutine can get here.
-        self.get_in_progress = True
-
-        # First frame
-        try:
-            frame = await self.frames.get()
-        except asyncio.CancelledError:
-            self.get_in_progress = False
-            raise
-        self.maybe_resume()
-        assert frame.opcode is OP_TEXT or frame.opcode is OP_BINARY
-        if decode is None:
-            decode = frame.opcode is OP_TEXT
-        frames = [frame]
-
-        # Following frames, for fragmented messages
-        while not frame.fin:
-            try:
-                frame = await self.frames.get()
-            except asyncio.CancelledError:
-                # Put frames already received back into the queue
-                # so that future calls to get() can return them.
-                self.frames.reset(frames)
-                self.get_in_progress = False
-                raise
-            self.maybe_resume()
-            assert frame.opcode is OP_CONT
-            frames.append(frame)
-
-        self.get_in_progress = False
-
-        data = b"".join(frame.data for frame in frames)
-        if decode:
-            return data.decode()
-        else:
-            return data
-
-    async def get_iter(self, decode: bool | None = None) -> AsyncIterator[Data]:
-        """
-        Stream the next message.
-
-        Iterating the return value of :meth:`get_iter` asynchronously yields a
-        :class:`str` or :class:`bytes` for each frame in the message.
-
-        The iterator must be fully consumed before calling :meth:`get_iter` or
-        :meth:`get` again. Else, :exc:`ConcurrencyError` is raised.
-
-        This method only makes sense for fragmented messages. If messages aren't
-        fragmented, use :meth:`get` instead.
-
-        Args:
-            decode: :obj:`False` disables UTF-8 decoding of text frames and
-                returns :class:`bytes`. :obj:`True` forces UTF-8 decoding of
-                binary frames and returns :class:`str`.
-
-        Raises:
-            EOFError: If the stream of frames has ended.
-            ConcurrencyError: If two coroutines run :meth:`get` or
-                :meth:`get_iter` concurrently.
-
-        """
-        if self.closed:
-            raise EOFError("stream of frames ended")
-
-        if self.get_in_progress:
-            raise ConcurrencyError("get() or get_iter() is already running")
-
-        # Locking with get_in_progress ensures only one coroutine can get here.
-        self.get_in_progress = True
-
-        # First frame
-        try:
-            frame = await self.frames.get()
-        except asyncio.CancelledError:
-            self.get_in_progress = False
-            raise
-        self.maybe_resume()
-        assert frame.opcode is OP_TEXT or frame.opcode is OP_BINARY
-        if decode is None:
-            decode = frame.opcode is OP_TEXT
-        if decode:
-            decoder = UTF8Decoder()
-            yield decoder.decode(frame.data, frame.fin)
-        else:
-            yield frame.data
-
-        # Following frames, for fragmented messages
-        while not frame.fin:
-            # We cannot handle asyncio.CancelledError because we don't buffer
-            # previous fragments — we're streaming them. Canceling get_iter()
-            # here will leave the assembler in a stuck state. Future calls to
-            # get() or get_iter() will raise ConcurrencyError.
-            frame = await self.frames.get()
-            self.maybe_resume()
-            assert frame.opcode is OP_CONT
-            if decode:
-                yield decoder.decode(frame.data, frame.fin)
-            else:
-                yield frame.data
-
-        self.get_in_progress = False
-
-    def put(self, frame: Frame) -> None:
-        """
-        Add ``frame`` to the next message.
-
-        Raises:
-            EOFError: If the stream of frames has ended.
-
-        """
-        if self.closed:
-            raise EOFError("stream of frames ended")
-
-        self.frames.put(frame)
-        self.maybe_pause()
-
-    def maybe_pause(self) -> None:
-        """Pause the writer if queue is above the high water mark."""
-        # Check for "> high" to support high = 0
-        if len(self.frames) > self.high and not self.paused:
-            self.paused = True
-            self.pause()
-
-    def maybe_resume(self) -> None:
-        """Resume the writer if queue is below the low water mark."""
-        # Check for "<= low" to support low = 0
-        if len(self.frames) <= self.low and self.paused:
-            self.paused = False
-            self.resume()
-
-    def close(self) -> None:
-        """
-        End the stream of frames.
-
-        Callling :meth:`close` concurrently with :meth:`get`, :meth:`get_iter`,
-        or :meth:`put` is safe. They will raise :exc:`EOFError`.
-
-        """
-        if self.closed:
-            return
-
-        self.closed = True
-
-        # Unblock get() or get_iter().
-        self.frames.abort()

plugins/gtksourceview/lsp_manager/websockets/asyncio/server.py

@@ -1,973 +0,0 @@
-from __future__ import annotations
-
-import asyncio
-import hmac
-import http
-import logging
-import socket
-import sys
-from types import TracebackType
-from typing import (
-    Any,
-    Awaitable,
-    Callable,
-    Generator,
-    Iterable,
-    Sequence,
-    Tuple,
-    cast,
-)
-
-from ..exceptions import InvalidHeader
-from ..extensions.base import ServerExtensionFactory
-from ..extensions.permessage_deflate import enable_server_permessage_deflate
-from ..frames import CloseCode
-from ..headers import (
-    build_www_authenticate_basic,
-    parse_authorization_basic,
-    validate_subprotocols,
-)
-from ..http11 import SERVER, Request, Response
-from ..protocol import CONNECTING, OPEN, Event
-from ..server import ServerProtocol
-from ..typing import LoggerLike, Origin, StatusLike, Subprotocol
-from .compatibility import asyncio_timeout
-from .connection import Connection, broadcast
-
-
-__all__ = [
-    "broadcast",
-    "serve",
-    "unix_serve",
-    "ServerConnection",
-    "Server",
-    "basic_auth",
-]
-
-
-class ServerConnection(Connection):
-    """
-    :mod:`asyncio` implementation of a WebSocket server connection.
-
-    :class:`ServerConnection` provides :meth:`recv` and :meth:`send` methods for
-    receiving and sending messages.
-
-    It supports asynchronous iteration to receive messages::
-
-        async for message in websocket:
-            await 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``, ``max_queue``,
-    and ``write_limit`` arguments the same meaning as in :func:`serve`.
-
-    Args:
-        protocol: Sans-I/O connection.
-        server: Server that manages this connection.
-
-    """
-
-    def __init__(
-        self,
-        protocol: ServerProtocol,
-        server: Server,
-        *,
-        ping_interval: float | None = 20,
-        ping_timeout: float | None = 20,
-        close_timeout: float | None = 10,
-        max_queue: int | tuple[int, int | None] = 16,
-        write_limit: int | tuple[int, int | None] = 2**15,
-    ) -> None:
-        self.protocol: ServerProtocol
-        super().__init__(
-            protocol,
-            ping_interval=ping_interval,
-            ping_timeout=ping_timeout,
-            close_timeout=close_timeout,
-            max_queue=max_queue,
-            write_limit=write_limit,
-        )
-        self.server = server
-        self.request_rcvd: asyncio.Future[None] = self.loop.create_future()
-        self.username: str  # see basic_auth()
-
-    def respond(self, status: StatusLike, text: str) -> Response:
-        """
-        Create a plain text HTTP response.
-
-        ``process_request`` and ``process_response`` may call this method to
-        return an HTTP response instead of performing the WebSocket opening
-        handshake.
-
-        You can modify the response before returning it, for example by changing
-        HTTP headers.
-
-        Args:
-            status: HTTP status code.
-            text: HTTP response body; it will be encoded to UTF-8.
-
-        Returns:
-            HTTP response to send to the client.
-
-        """
-        return self.protocol.reject(status, text)
-
-    async def handshake(
-        self,
-        process_request: (
-            Callable[
-                [ServerConnection, Request],
-                Awaitable[Response | None] | Response | None,
-            ]
-            | None
-        ) = None,
-        process_response: (
-            Callable[
-                [ServerConnection, Request, Response],
-                Awaitable[Response | None] | Response | None,
-            ]
-            | None
-        ) = None,
-        server_header: str | None = SERVER,
-    ) -> None:
-        """
-        Perform the opening handshake.
-
-        """
-        await asyncio.wait(
-            [self.request_rcvd, self.connection_lost_waiter],
-            return_when=asyncio.FIRST_COMPLETED,
-        )
-
-        if self.request is not None:
-            async with self.send_context(expected_state=CONNECTING):
-                response = None
-
-                if process_request is not None:
-                    try:
-                        response = process_request(self, self.request)
-                        if isinstance(response, Awaitable):
-                            response = await response
-                    except Exception as exc:
-                        self.protocol.handshake_exc = exc
-                        response = self.protocol.reject(
-                            http.HTTPStatus.INTERNAL_SERVER_ERROR,
-                            (
-                                "Failed to open a WebSocket connection.\n"
-                                "See server log for more information.\n"
-                            ),
-                        )
-
-                if response is None:
-                    if self.server.is_serving():
-                        self.response = self.protocol.accept(self.request)
-                    else:
-                        self.response = self.protocol.reject(
-                            http.HTTPStatus.SERVICE_UNAVAILABLE,
-                            "Server is shutting down.\n",
-                        )
-                else:
-                    assert isinstance(response, Response)  # help mypy
-                    self.response = response
-
-                if server_header:
-                    self.response.headers["Server"] = server_header
-
-                response = None
-
-                if process_response is not None:
-                    try:
-                        response = process_response(self, self.request, self.response)
-                        if isinstance(response, Awaitable):
-                            response = await response
-                    except Exception as exc:
-                        self.protocol.handshake_exc = exc
-                        response = self.protocol.reject(
-                            http.HTTPStatus.INTERNAL_SERVER_ERROR,
-                            (
-                                "Failed to open a WebSocket connection.\n"
-                                "See server log for more information.\n"
-                            ),
-                        )
-
-                if response is not None:
-                    assert isinstance(response, Response)  # help mypy
-                    self.response = response
-
-                self.protocol.send_response(self.response)
-
-        # self.protocol.handshake_exc is always set when the connection is lost
-        # before receiving a request, when the request cannot be parsed, when
-        # the handshake encounters an error, or when process_request or
-        # process_response sends a HTTP response that rejects 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 request.
-        if self.request is None:
-            assert isinstance(event, Request)
-            self.request = event
-            self.request_rcvd.set_result(None)
-        # Later events - frames.
-        else:
-            super().process_event(event)
-
-    def connection_made(self, transport: asyncio.BaseTransport) -> None:
-        super().connection_made(transport)
-        self.server.start_connection_handler(self)
-
-
-class Server:
-    """
-    WebSocket server returned by :func:`serve`.
-
-    This class mirrors the API of :class:`asyncio.Server`.
-
-    It keeps track of WebSocket connections in order to close them properly
-    when shutting down.
-
-    Args:
-        handler: Connection handler. It receives the WebSocket connection,
-            which is a :class:`ServerConnection`, in argument.
-        process_request: Intercept the request during the opening handshake.
-            Return an HTTP response to force the response. Return :obj:`None` to
-            continue normally. When you force an HTTP 101 Continue response, the
-            handshake is successful. Else, the connection is aborted.
-            ``process_request`` may be a function or a coroutine.
-        process_response: Intercept the response during the opening handshake.
-            Modify the response or return a new HTTP response to force the
-            response. Return :obj:`None` to continue normally. When you force an
-            HTTP 101 Continue response, the handshake is successful. Else, the
-            connection is aborted. ``process_response`` may be a function or a
-            coroutine.
-        server_header: Value of  the ``Server`` response header.
-            It defaults to ``"Python/x.y.z websockets/X.Y"``. Setting it to
-            :obj:`None` removes the header.
-        open_timeout: Timeout for opening connections in seconds.
-            :obj:`None` disables the timeout.
-        logger: Logger for this server.
-            It defaults to ``logging.getLogger("websockets.server")``.
-            See the :doc:`logging guide <../../topics/logging>` for details.
-
-    """
-
-    def __init__(
-        self,
-        handler: Callable[[ServerConnection], Awaitable[None]],
-        *,
-        process_request: (
-            Callable[
-                [ServerConnection, Request],
-                Awaitable[Response | None] | Response | None,
-            ]
-            | None
-        ) = None,
-        process_response: (
-            Callable[
-                [ServerConnection, Request, Response],
-                Awaitable[Response | None] | Response | None,
-            ]
-            | None
-        ) = None,
-        server_header: str | None = SERVER,
-        open_timeout: float | None = 10,
-        logger: LoggerLike | None = None,
-    ) -> None:
-        self.loop = asyncio.get_running_loop()
-        self.handler = handler
-        self.process_request = process_request
-        self.process_response = process_response
-        self.server_header = server_header
-        self.open_timeout = open_timeout
-        if logger is None:
-            logger = logging.getLogger("websockets.server")
-        self.logger = logger
-
-        # Keep track of active connections.
-        self.handlers: dict[ServerConnection, asyncio.Task[None]] = {}
-
-        # Task responsible for closing the server and terminating connections.
-        self.close_task: asyncio.Task[None] | None = None
-
-        # Completed when the server is closed and connections are terminated.
-        self.closed_waiter: asyncio.Future[None] = self.loop.create_future()
-
-    @property
-    def connections(self) -> set[ServerConnection]:
-        """
-        Set of active connections.
-
-        This property contains all connections that completed the opening
-        handshake successfully and didn't start the closing handshake yet.
-        It can be useful in combination with :func:`~broadcast`.
-
-        """
-        return {connection for connection in self.handlers if connection.state is OPEN}
-
-    def wrap(self, server: asyncio.Server) -> None:
-        """
-        Attach to a given :class:`asyncio.Server`.
-
-        Since :meth:`~asyncio.loop.create_server` doesn't support injecting a
-        custom ``Server`` class, the easiest solution that doesn't rely on
-        private :mod:`asyncio` APIs is to:
-
-        - instantiate a :class:`Server`
-        - give the protocol factory a reference to that instance
-        - call :meth:`~asyncio.loop.create_server` with the factory
-        - attach the resulting :class:`asyncio.Server` with this method
-
-        """
-        self.server = server
-        for sock in server.sockets:
-            if sock.family == socket.AF_INET:
-                name = "%s:%d" % sock.getsockname()
-            elif sock.family == socket.AF_INET6:
-                name = "[%s]:%d" % sock.getsockname()[:2]
-            elif sock.family == socket.AF_UNIX:
-                name = sock.getsockname()
-            # In the unlikely event that someone runs websockets over a
-            # protocol other than IP or Unix sockets, avoid crashing.
-            else:  # pragma: no cover
-                name = str(sock.getsockname())
-            self.logger.info("server listening on %s", name)
-
-    async def conn_handler(self, connection: ServerConnection) -> None:
-        """
-        Handle the lifecycle of a WebSocket connection.
-
-        Since this method doesn't have a caller that can handle exceptions,
-        it attempts to log relevant ones.
-
-        It guarantees that the TCP connection is closed before exiting.
-
-        """
-        try:
-            async with asyncio_timeout(self.open_timeout):
-                try:
-                    await connection.handshake(
-                        self.process_request,
-                        self.process_response,
-                        self.server_header,
-                    )
-                except asyncio.CancelledError:
-                    connection.close_transport()
-                    raise
-                except Exception:
-                    connection.logger.error("opening handshake failed", exc_info=True)
-                    connection.close_transport()
-                    return
-
-            assert connection.protocol.state is OPEN
-            try:
-                connection.start_keepalive()
-                await self.handler(connection)
-            except Exception:
-                connection.logger.error("connection handler failed", exc_info=True)
-                await connection.close(CloseCode.INTERNAL_ERROR)
-            else:
-                await connection.close()
-
-        except TimeoutError:
-            # When the opening handshake times out, there's nothing to log.
-            pass
-
-        except Exception:  # pragma: no cover
-            # Don't leak connections on unexpected errors.
-            connection.transport.abort()
-
-        finally:
-            # Registration is tied to the lifecycle of conn_handler() because
-            # the server waits for connection handlers to terminate, even if
-            # all connections are already closed.
-            del self.handlers[connection]
-
-    def start_connection_handler(self, connection: ServerConnection) -> None:
-        """
-        Register a connection with this server.
-
-        """
-        # The connection must be registered in self.handlers immediately.
-        # If it was registered in conn_handler(), a race condition could
-        # happen when closing the server after scheduling conn_handler()
-        # but before it starts executing.
-        self.handlers[connection] = self.loop.create_task(self.conn_handler(connection))
-
-    def close(self, close_connections: bool = True) -> None:
-        """
-        Close the server.
-
-        * Close the underlying :class:`asyncio.Server`.
-        * When ``close_connections`` is :obj:`True`, which is the default,
-          close existing connections. Specifically:
-
-          * Reject opening WebSocket connections with an HTTP 503 (service
-            unavailable) error. This happens when the server accepted the TCP
-            connection but didn't complete the opening handshake before closing.
-          * Close open WebSocket connections with close code 1001 (going away).
-
-        * Wait until all connection handlers terminate.
-
-        :meth:`close` is idempotent.
-
-        """
-        if self.close_task is None:
-            self.close_task = self.get_loop().create_task(
-                self._close(close_connections)
-            )
-
-    async def _close(self, close_connections: bool) -> None:
-        """
-        Implementation of :meth:`close`.
-
-        This calls :meth:`~asyncio.Server.close` on the underlying
-        :class:`asyncio.Server` object to stop accepting new connections and
-        then closes open connections with close code 1001.
-
-        """
-        self.logger.info("server closing")
-
-        # Stop accepting new connections.
-        self.server.close()
-
-        # Wait until all accepted connections reach connection_made() and call
-        # register(). See https://github.com/python/cpython/issues/79033 for
-        # details. This workaround can be removed when dropping Python < 3.11.
-        await asyncio.sleep(0)
-
-        if close_connections:
-            # Close OPEN connections with close code 1001. After server.close(),
-            # handshake() closes OPENING connections with an HTTP 503 error.
-            close_tasks = [
-                asyncio.create_task(connection.close(1001))
-                for connection in self.handlers
-                if connection.protocol.state is not CONNECTING
-            ]
-            # asyncio.wait doesn't accept an empty first argument.
-            if close_tasks:
-                await asyncio.wait(close_tasks)
-
-        # Wait until all TCP connections are closed.
-        await self.server.wait_closed()
-
-        # Wait until all connection handlers terminate.
-        # asyncio.wait doesn't accept an empty first argument.
-        if self.handlers:
-            await asyncio.wait(self.handlers.values())
-
-        # Tell wait_closed() to return.
-        self.closed_waiter.set_result(None)
-
-        self.logger.info("server closed")
-
-    async def wait_closed(self) -> None:
-        """
-        Wait until the server is closed.
-
-        When :meth:`wait_closed` returns, all TCP connections are closed and
-        all connection handlers have returned.
-
-        To ensure a fast shutdown, a connection handler should always be
-        awaiting at least one of:
-
-        * :meth:`~ServerConnection.recv`: when the connection is closed,
-          it raises :exc:`~websockets.exceptions.ConnectionClosedOK`;
-        * :meth:`~ServerConnection.wait_closed`: when the connection is
-          closed, it returns.
-
-        Then the connection handler is immediately notified of the shutdown;
-        it can clean up and exit.
-
-        """
-        await asyncio.shield(self.closed_waiter)
-
-    def get_loop(self) -> asyncio.AbstractEventLoop:
-        """
-        See :meth:`asyncio.Server.get_loop`.
-
-        """
-        return self.server.get_loop()
-
-    def is_serving(self) -> bool:  # pragma: no cover
-        """
-        See :meth:`asyncio.Server.is_serving`.
-
-        """
-        return self.server.is_serving()
-
-    async def start_serving(self) -> None:  # pragma: no cover
-        """
-        See :meth:`asyncio.Server.start_serving`.
-
-        Typical use::
-
-            server = await serve(..., start_serving=False)
-            # perform additional setup here...
-            # ... then start the server
-            await server.start_serving()
-
-        """
-        await self.server.start_serving()
-
-    async def serve_forever(self) -> None:  # pragma: no cover
-        """
-        See :meth:`asyncio.Server.serve_forever`.
-
-        Typical use::
-
-            server = await serve(...)
-            # this coroutine doesn't return
-            # canceling it stops the server
-            await server.serve_forever()
-
-        This is an alternative to using :func:`serve` as an asynchronous context
-        manager. Shutdown is triggered by canceling :meth:`serve_forever`
-        instead of exiting a :func:`serve` context.
-
-        """
-        await self.server.serve_forever()
-
-    @property
-    def sockets(self) -> Iterable[socket.socket]:
-        """
-        See :attr:`asyncio.Server.sockets`.
-
-        """
-        return self.server.sockets
-
-    async def __aenter__(self) -> Server:  # pragma: no cover
-        return self
-
-    async def __aexit__(
-        self,
-        exc_type: type[BaseException] | None,
-        exc_value: BaseException | None,
-        traceback: TracebackType | None,
-    ) -> None:  # pragma: no cover
-        self.close()
-        await self.wait_closed()
-
-
-# This is spelled in lower case because it's exposed as a callable in the API.
-class serve:
-    """
-    Create a WebSocket server listening on ``host`` and ``port``.
-
-    Whenever a client connects, the server creates a :class:`ServerConnection`,
-    performs the opening handshake, and delegates to the ``handler`` coroutine.
-
-    The handler receives the :class:`ServerConnection` instance, which you can
-    use to send and receive messages.
-
-    Once the handler completes, either normally or with an exception, the server
-    performs the closing handshake and closes the connection.
-
-    This coroutine returns a :class:`Server` whose API mirrors
-    :class:`asyncio.Server`. Treat it as an asynchronous context manager to
-    ensure that the server will be closed::
-
-        from websockets.asyncio.server import serve
-
-        def handler(websocket):
-            ...
-
-        # set this future to exit the server
-        stop = asyncio.get_running_loop().create_future()
-
-        async with serve(handler, host, port):
-            await stop
-
-    Alternatively, call :meth:`~Server.serve_forever` to serve requests and
-    cancel it to stop the server::
-
-        server = await serve(handler, host, port)
-        await server.serve_forever()
-
-    Args:
-        handler: Connection handler. It receives the WebSocket connection,
-            which is a :class:`ServerConnection`, in argument.
-        host: Network interfaces the server binds to.
-            See :meth:`~asyncio.loop.create_server` for details.
-        port: TCP port the server listens on.
-            See :meth:`~asyncio.loop.create_server` for details.
-        origins: Acceptable values of the ``Origin`` header, for defending
-            against Cross-Site WebSocket Hijacking attacks. Include :obj:`None`
-            in the list if the lack of an origin is acceptable.
-        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.
-        select_subprotocol: Callback for selecting a subprotocol among
-            those supported by the client and the server. It receives a
-            :class:`ServerConnection` (not a
-            :class:`~websockets.server.ServerProtocol`!) instance and a list of
-            subprotocols offered by the client. Other than the first argument,
-            it has the same behavior as the
-            :meth:`ServerProtocol.select_subprotocol
-            <websockets.server.ServerProtocol.select_subprotocol>` method.
-        process_request: Intercept the request during the opening handshake.
-            Return an HTTP response to force the response or :obj:`None` to
-            continue normally. When you force an HTTP 101 Continue response, the
-            handshake is successful. Else, the connection is aborted.
-            ``process_request`` may be a function or a coroutine.
-        process_response: Intercept the response during the opening handshake.
-            Return an HTTP response to force the response or :obj:`None` to
-            continue normally. When you force an HTTP 101 Continue response, the
-            handshake is successful. Else, the connection is aborted.
-            ``process_response`` may be a function or a coroutine.
-        server_header: Value of  the ``Server`` response header.
-            It defaults to ``"Python/x.y.z websockets/X.Y"``. Setting it to
-            :obj:`None` removes the header.
-        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.
-        open_timeout: Timeout for opening connections 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 connections 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.
-        write_limit: High-water mark of write buffer in bytes. It is passed to
-            :meth:`~asyncio.WriteTransport.set_write_buffer_limits`. It defaults
-            to 32 KiB. You may pass a ``(high, low)`` tuple to set the
-            high-water and low-water marks.
-        logger: Logger for this server.
-            It defaults to ``logging.getLogger("websockets.server")``. See the
-            :doc:`logging guide <../../topics/logging>` for details.
-        create_connection: Factory for the :class:`ServerConnection` managing
-            the connection. Set it to a wrapper or a subclass to customize
-            connection handling.
-
-    Any other keyword arguments are passed to the event loop's
-    :meth:`~asyncio.loop.create_server` method.
-
-    For example:
-
-    * You can set ``ssl`` to a :class:`~ssl.SSLContext` to enable TLS.
-
-    * You can set ``sock`` to provide a preexisting TCP socket. You may call
-      :func:`socket.create_server` (not to be confused with the event loop's
-      :meth:`~asyncio.loop.create_server` method) to create a suitable server
-      socket and customize it.
-
-    * You can set ``start_serving`` to ``False`` to start accepting connections
-      only after you call :meth:`~Server.start_serving()` or
-      :meth:`~Server.serve_forever()`.
-
-    """
-
-    def __init__(
-        self,
-        handler: Callable[[ServerConnection], Awaitable[None]],
-        host: str | None = None,
-        port: int | None = None,
-        *,
-        # WebSocket
-        origins: Sequence[Origin | None] | None = None,
-        extensions: Sequence[ServerExtensionFactory] | None = None,
-        subprotocols: Sequence[Subprotocol] | None = None,
-        select_subprotocol: (
-            Callable[
-                [ServerConnection, Sequence[Subprotocol]],
-                Subprotocol | None,
-            ]
-            | None
-        ) = None,
-        process_request: (
-            Callable[
-                [ServerConnection, Request],
-                Awaitable[Response | None] | Response | None,
-            ]
-            | None
-        ) = None,
-        process_response: (
-            Callable[
-                [ServerConnection, Request, Response],
-                Awaitable[Response | None] | Response | None,
-            ]
-            | None
-        ) = None,
-        server_header: str | None = SERVER,
-        compression: str | None = "deflate",
-        # 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 | tuple[int, int | None] = 16,
-        write_limit: int | tuple[int, int | None] = 2**15,
-        # Logging
-        logger: LoggerLike | None = None,
-        # Escape hatch for advanced customization
-        create_connection: type[ServerConnection] | None = None,
-        # Other keyword arguments are passed to loop.create_server
-        **kwargs: Any,
-    ) -> None:
-        if subprotocols is not None:
-            validate_subprotocols(subprotocols)
-
-        if compression == "deflate":
-            extensions = enable_server_permessage_deflate(extensions)
-        elif compression is not None:
-            raise ValueError(f"unsupported compression: {compression}")
-
-        if create_connection is None:
-            create_connection = ServerConnection
-
-        self.server = Server(
-            handler,
-            process_request=process_request,
-            process_response=process_response,
-            server_header=server_header,
-            open_timeout=open_timeout,
-            logger=logger,
-        )
-
-        if kwargs.get("ssl") is not None:
-            kwargs.setdefault("ssl_handshake_timeout", open_timeout)
-            if sys.version_info[:2] >= (3, 11):  # pragma: no branch
-                kwargs.setdefault("ssl_shutdown_timeout", close_timeout)
-
-        def factory() -> ServerConnection:
-            """
-            Create an asyncio protocol for managing a WebSocket connection.
-
-            """
-            # Create a closure to give select_subprotocol access to connection.
-            protocol_select_subprotocol: (
-                Callable[
-                    [ServerProtocol, Sequence[Subprotocol]],
-                    Subprotocol | None,
-                ]
-                | None
-            ) = None
-            if select_subprotocol is not None:
-
-                def protocol_select_subprotocol(
-                    protocol: ServerProtocol,
-                    subprotocols: Sequence[Subprotocol],
-                ) -> Subprotocol | None:
-                    # mypy doesn't know that select_subprotocol is immutable.
-                    assert select_subprotocol is not None
-                    # Ensure this function is only used in the intended context.
-                    assert protocol is connection.protocol
-                    return select_subprotocol(connection, subprotocols)
-
-            # This is a protocol in the Sans-I/O implementation of websockets.
-            protocol = ServerProtocol(
-                origins=origins,
-                extensions=extensions,
-                subprotocols=subprotocols,
-                select_subprotocol=protocol_select_subprotocol,
-                max_size=max_size,
-                logger=logger,
-            )
-            # This is a connection in websockets and a protocol in asyncio.
-            connection = create_connection(
-                protocol,
-                self.server,
-                ping_interval=ping_interval,
-                ping_timeout=ping_timeout,
-                close_timeout=close_timeout,
-                max_queue=max_queue,
-                write_limit=write_limit,
-            )
-            return connection
-
-        loop = asyncio.get_running_loop()
-        if kwargs.pop("unix", False):
-            self.create_server = loop.create_unix_server(factory, **kwargs)
-        else:
-            # mypy cannot tell that kwargs must provide sock when port is None.
-            self.create_server = loop.create_server(factory, host, port, **kwargs)  # type: ignore[arg-type]
-
-    # async with serve(...) as ...: ...
-
-    async def __aenter__(self) -> Server:
-        return await self
-
-    async def __aexit__(
-        self,
-        exc_type: type[BaseException] | None,
-        exc_value: BaseException | None,
-        traceback: TracebackType | None,
-    ) -> None:
-        self.server.close()
-        await self.server.wait_closed()
-
-    # ... = await serve(...)
-
-    def __await__(self) -> Generator[Any, None, Server]:
-        # Create a suitable iterator by calling __await__ on a coroutine.
-        return self.__await_impl__().__await__()
-
-    async def __await_impl__(self) -> Server:
-        server = await self.create_server
-        self.server.wrap(server)
-        return self.server
-
-    # ... = yield from serve(...) - remove when dropping Python < 3.10
-
-    __iter__ = __await__
-
-
-def unix_serve(
-    handler: Callable[[ServerConnection], Awaitable[None]],
-    path: str | None = None,
-    **kwargs: Any,
-) -> Awaitable[Server]:
-    """
-    Create a WebSocket server listening on a Unix socket.
-
-    This function is identical to :func:`serve`, except the ``host`` and
-    ``port`` arguments are replaced by ``path``. It's only available on Unix.
-
-    It's useful for deploying a server behind a reverse proxy such as nginx.
-
-    Args:
-        handler: Connection handler. It receives the WebSocket connection,
-            which is a :class:`ServerConnection`, in argument.
-        path: File system path to the Unix socket.
-
-    """
-    return serve(handler, unix=True, path=path, **kwargs)
-
-
-def is_credentials(credentials: Any) -> bool:
-    try:
-        username, password = credentials
-    except (TypeError, ValueError):
-        return False
-    else:
-        return isinstance(username, str) and isinstance(password, str)
-
-
-def basic_auth(
-    realm: str = "",
-    credentials: tuple[str, str] | Iterable[tuple[str, str]] | None = None,
-    check_credentials: Callable[[str, str], Awaitable[bool] | bool] | None = None,
-) -> Callable[[ServerConnection, Request], Awaitable[Response | None]]:
-    """
-    Factory for ``process_request`` to enforce HTTP Basic Authentication.
-
-    :func:`basic_auth` is designed to integrate with :func:`serve` as follows::
-
-        from websockets.asyncio.server import basic_auth, serve
-
-        async with serve(
-            ...,
-            process_request=basic_auth(
-                realm="my dev server",
-                credentials=("hello", "iloveyou"),
-            ),
-        ):
-
-    If authentication succeeds, the connection's ``username`` attribute is set.
-    If it fails, the server responds with an HTTP 401 Unauthorized status.
-
-    One of ``credentials`` or ``check_credentials`` must be provided; not both.
-
-    Args:
-        realm: Scope of protection. It should contain only ASCII characters
-            because the encoding of non-ASCII characters is undefined. Refer to
-            section 2.2 of :rfc:`7235` for details.
-        credentials: Hard coded authorized credentials. It can be a
-            ``(username, password)`` pair or a list of such pairs.
-        check_credentials: Function or coroutine that verifies credentials.
-            It receives ``username`` and ``password`` arguments and returns
-            whether they're valid.
-    Raises:
-        TypeError: If ``credentials`` or ``check_credentials`` is wrong.
-
-    """
-    if (credentials is None) == (check_credentials is None):
-        raise TypeError("provide either credentials or check_credentials")
-
-    if credentials is not None:
-        if is_credentials(credentials):
-            credentials_list = [cast(Tuple[str, str], credentials)]
-        elif isinstance(credentials, Iterable):
-            credentials_list = list(cast(Iterable[Tuple[str, str]], credentials))
-            if not all(is_credentials(item) for item in credentials_list):
-                raise TypeError(f"invalid credentials argument: {credentials}")
-        else:
-            raise TypeError(f"invalid credentials argument: {credentials}")
-
-        credentials_dict = dict(credentials_list)
-
-        def check_credentials(username: str, password: str) -> bool:
-            try:
-                expected_password = credentials_dict[username]
-            except KeyError:
-                return False
-            return hmac.compare_digest(expected_password, password)
-
-    assert check_credentials is not None  # help mypy
-
-    async def process_request(
-        connection: ServerConnection,
-        request: Request,
-    ) -> Response | None:
-        """
-        Perform HTTP Basic Authentication.
-
-        If it succeeds, set the connection's ``username`` attribute and return
-        :obj:`None`. If it fails, return an HTTP 401 Unauthorized responss.
-
-        """
-        try:
-            authorization = request.headers["Authorization"]
-        except KeyError:
-            response = connection.respond(
-                http.HTTPStatus.UNAUTHORIZED,
-                "Missing credentials\n",
-            )
-            response.headers["WWW-Authenticate"] = build_www_authenticate_basic(realm)
-            return response
-
-        try:
-            username, password = parse_authorization_basic(authorization)
-        except InvalidHeader:
-            response = connection.respond(
-                http.HTTPStatus.UNAUTHORIZED,
-                "Unsupported credentials\n",
-            )
-            response.headers["WWW-Authenticate"] = build_www_authenticate_basic(realm)
-            return response
-
-        valid_credentials = check_credentials(username, password)
-        if isinstance(valid_credentials, Awaitable):
-            valid_credentials = await valid_credentials
-
-        if not valid_credentials:
-            response = connection.respond(
-                http.HTTPStatus.UNAUTHORIZED,
-                "Invalid credentials\n",
-            )
-            response.headers["WWW-Authenticate"] = build_www_authenticate_basic(realm)
-            return response
-
-        connection.username = username
-        return None
-
-    return process_request

plugins/gtksourceview/lsp_manager/websockets/auth.py

@@ -1,6 +0,0 @@
-from __future__ import annotations
-
-# See #940 for why lazy_import isn't used here for backwards compatibility.
-# See #1400 for why listing compatibility imports in __all__ helps PyCharm.
-from .legacy.auth import *
-from .legacy.auth import __all__  # noqa: F401

plugins/gtksourceview/lsp_manager/websockets/client.py

@@ -1,393 +0,0 @@
-from __future__ import annotations
-
-import os
-import random
-import warnings
-from typing import Any, Generator, Sequence
-
-from .datastructures import Headers, MultipleValuesError
-from .exceptions import (
-    InvalidHandshake,
-    InvalidHeader,
-    InvalidHeaderValue,
-    InvalidStatus,
-    InvalidUpgrade,
-    NegotiationError,
-)
-from .extensions import ClientExtensionFactory, Extension
-from .headers import (
-    build_authorization_basic,
-    build_extension,
-    build_host,
-    build_subprotocol,
-    parse_connection,
-    parse_extension,
-    parse_subprotocol,
-    parse_upgrade,
-)
-from .http11 import Request, Response
-from .protocol import CLIENT, CONNECTING, OPEN, Protocol, State
-from .typing import (
-    ConnectionOption,
-    ExtensionHeader,
-    LoggerLike,
-    Origin,
-    Subprotocol,
-    UpgradeProtocol,
-)
-from .uri import WebSocketURI
-from .utils import accept_key, generate_key
-
-
-# See #940 for why lazy_import isn't used here for backwards compatibility.
-# See #1400 for why listing compatibility imports in __all__ helps PyCharm.
-from .legacy.client import *  # isort:skip  # noqa: I001
-from .legacy.client import __all__ as legacy__all__
-
-
-__all__ = ["ClientProtocol"] + legacy__all__
-
-
-class ClientProtocol(Protocol):
-    """
-    Sans-I/O implementation of a WebSocket client connection.
-
-    Args:
-        wsuri: URI of the WebSocket server, parsed
-            with :func:`~websockets.uri.parse_uri`.
-        origin: Value of the ``Origin`` header. This is useful when connecting
-            to a server that validates the ``Origin`` header to defend against
-            Cross-Site WebSocket Hijacking attacks.
-        extensions: List of supported extensions, in order in which they
-            should be tried.
-        subprotocols: List of supported subprotocols, in order of decreasing
-            preference.
-        state: Initial state of the WebSocket connection.
-        max_size: Maximum size of incoming messages in bytes;
-            :obj:`None` disables the limit.
-        logger: Logger for this connection;
-            defaults to ``logging.getLogger("websockets.client")``;
-            see the :doc:`logging guide <../../topics/logging>` for details.
-
-    """
-
-    def __init__(
-        self,
-        wsuri: WebSocketURI,
-        *,
-        origin: Origin | None = None,
-        extensions: Sequence[ClientExtensionFactory] | None = None,
-        subprotocols: Sequence[Subprotocol] | None = None,
-        state: State = CONNECTING,
-        max_size: int | None = 2**20,
-        logger: LoggerLike | None = None,
-    ) -> None:
-        super().__init__(
-            side=CLIENT,
-            state=state,
-            max_size=max_size,
-            logger=logger,
-        )
-        self.wsuri = wsuri
-        self.origin = origin
-        self.available_extensions = extensions
-        self.available_subprotocols = subprotocols
-        self.key = generate_key()
-
-    def connect(self) -> Request:
-        """
-        Create a handshake request to open a connection.
-
-        You must send the handshake request with :meth:`send_request`.
-
-        You can modify it before sending it, for example to add HTTP headers.
-
-        Returns:
-            WebSocket handshake request event to send to the server.
-
-        """
-        headers = Headers()
-
-        headers["Host"] = build_host(
-            self.wsuri.host, self.wsuri.port, self.wsuri.secure
-        )
-
-        if self.wsuri.user_info:
-            headers["Authorization"] = build_authorization_basic(*self.wsuri.user_info)
-
-        if self.origin is not None:
-            headers["Origin"] = self.origin
-
-        headers["Upgrade"] = "websocket"
-        headers["Connection"] = "Upgrade"
-        headers["Sec-WebSocket-Key"] = self.key
-        headers["Sec-WebSocket-Version"] = "13"
-
-        if self.available_extensions is not None:
-            extensions_header = build_extension(
-                [
-                    (extension_factory.name, extension_factory.get_request_params())
-                    for extension_factory in self.available_extensions
-                ]
-            )
-            headers["Sec-WebSocket-Extensions"] = extensions_header
-
-        if self.available_subprotocols is not None:
-            protocol_header = build_subprotocol(self.available_subprotocols)
-            headers["Sec-WebSocket-Protocol"] = protocol_header
-
-        return Request(self.wsuri.resource_name, headers)
-
-    def process_response(self, response: Response) -> None:
-        """
-        Check a handshake response.
-
-        Args:
-            request: WebSocket handshake response received from the server.
-
-        Raises:
-            InvalidHandshake: If the handshake response is invalid.
-
-        """
-
-        if response.status_code != 101:
-            raise InvalidStatus(response)
-
-        headers = response.headers
-
-        connection: list[ConnectionOption] = sum(
-            [parse_connection(value) for value in headers.get_all("Connection")], []
-        )
-
-        if not any(value.lower() == "upgrade" for value in connection):
-            raise InvalidUpgrade(
-                "Connection", ", ".join(connection) if connection else None
-            )
-
-        upgrade: list[UpgradeProtocol] = sum(
-            [parse_upgrade(value) for value in headers.get_all("Upgrade")], []
-        )
-
-        # For compatibility with non-strict implementations, ignore case when
-        # checking the Upgrade header. It's supposed to be 'WebSocket'.
-        if not (len(upgrade) == 1 and upgrade[0].lower() == "websocket"):
-            raise InvalidUpgrade("Upgrade", ", ".join(upgrade) if upgrade else None)
-
-        try:
-            s_w_accept = headers["Sec-WebSocket-Accept"]
-        except KeyError as exc:
-            raise InvalidHeader("Sec-WebSocket-Accept") from exc
-        except MultipleValuesError as exc:
-            raise InvalidHeader("Sec-WebSocket-Accept", "multiple values") from exc
-
-        if s_w_accept != accept_key(self.key):
-            raise InvalidHeaderValue("Sec-WebSocket-Accept", s_w_accept)
-
-        self.extensions = self.process_extensions(headers)
-
-        self.subprotocol = self.process_subprotocol(headers)
-
-    def process_extensions(self, headers: Headers) -> list[Extension]:
-        """
-        Handle the Sec-WebSocket-Extensions HTTP response header.
-
-        Check that each extension is supported, as well as its parameters.
-
-        :rfc:`6455` leaves the rules up to the specification of each
-        extension.
-
-        To provide this level of flexibility, for each extension accepted by
-        the server, we check for a match with each extension available in the
-        client configuration. If no match is found, an exception is raised.
-
-        If several variants of the same extension are accepted by the server,
-        it may be configured several times, which won't make sense in general.
-        Extensions must implement their own requirements. For this purpose,
-        the list of previously accepted extensions is provided.
-
-        Other requirements, for example related to mandatory extensions or the
-        order of extensions, may be implemented by overriding this method.
-
-        Args:
-            headers: WebSocket handshake response headers.
-
-        Returns:
-            List of accepted extensions.
-
-        Raises:
-            InvalidHandshake: To abort the handshake.
-
-        """
-        accepted_extensions: list[Extension] = []
-
-        extensions = headers.get_all("Sec-WebSocket-Extensions")
-
-        if extensions:
-            if self.available_extensions is None:
-                raise NegotiationError("no extensions supported")
-
-            parsed_extensions: list[ExtensionHeader] = sum(
-                [parse_extension(header_value) for header_value in extensions], []
-            )
-
-            for name, response_params in parsed_extensions:
-                for extension_factory in self.available_extensions:
-                    # Skip non-matching extensions based on their name.
-                    if extension_factory.name != name:
-                        continue
-
-                    # Skip non-matching extensions based on their params.
-                    try:
-                        extension = extension_factory.process_response_params(
-                            response_params, accepted_extensions
-                        )
-                    except NegotiationError:
-                        continue
-
-                    # Add matching extension to the final list.
-                    accepted_extensions.append(extension)
-
-                    # Break out of the loop once we have a match.
-                    break
-
-                # If we didn't break from the loop, no extension in our list
-                # matched what the server sent. Fail the connection.
-                else:
-                    raise NegotiationError(
-                        f"Unsupported extension: "
-                        f"name = {name}, params = {response_params}"
-                    )
-
-        return accepted_extensions
-
-    def process_subprotocol(self, headers: Headers) -> Subprotocol | None:
-        """
-        Handle the Sec-WebSocket-Protocol HTTP response header.
-
-        If provided, check that it contains exactly one supported subprotocol.
-
-        Args:
-            headers: WebSocket handshake response headers.
-
-        Returns:
-           Subprotocol, if one was selected.
-
-        """
-        subprotocol: Subprotocol | None = None
-
-        subprotocols = headers.get_all("Sec-WebSocket-Protocol")
-
-        if subprotocols:
-            if self.available_subprotocols is None:
-                raise NegotiationError("no subprotocols supported")
-
-            parsed_subprotocols: Sequence[Subprotocol] = sum(
-                [parse_subprotocol(header_value) for header_value in subprotocols], []
-            )
-
-            if len(parsed_subprotocols) > 1:
-                raise InvalidHeader(
-                    "Sec-WebSocket-Protocol",
-                    f"multiple values: {', '.join(parsed_subprotocols)}",
-                )
-
-            subprotocol = parsed_subprotocols[0]
-
-            if subprotocol not in self.available_subprotocols:
-                raise NegotiationError(f"unsupported subprotocol: {subprotocol}")
-
-        return subprotocol
-
-    def send_request(self, request: Request) -> None:
-        """
-        Send a handshake request to the server.
-
-        Args:
-            request: WebSocket handshake request event.
-
-        """
-        if self.debug:
-            self.logger.debug("> GET %s HTTP/1.1", request.path)
-            for key, value in request.headers.raw_items():
-                self.logger.debug("> %s: %s", key, value)
-
-        self.writes.append(request.serialize())
-
-    def parse(self) -> Generator[None, None, None]:
-        if self.state is CONNECTING:
-            try:
-                response = yield from Response.parse(
-                    self.reader.read_line,
-                    self.reader.read_exact,
-                    self.reader.read_to_eof,
-                )
-            except Exception as exc:
-                self.handshake_exc = exc
-                self.send_eof()
-                self.parser = self.discard()
-                next(self.parser)  # start coroutine
-                yield
-
-            if self.debug:
-                code, phrase = response.status_code, response.reason_phrase
-                self.logger.debug("< HTTP/1.1 %d %s", code, phrase)
-                for key, value in response.headers.raw_items():
-                    self.logger.debug("< %s: %s", key, value)
-                if response.body is not None:
-                    self.logger.debug("< [body] (%d bytes)", len(response.body))
-
-            try:
-                self.process_response(response)
-            except InvalidHandshake as exc:
-                response._exception = exc
-                self.events.append(response)
-                self.handshake_exc = exc
-                self.send_eof()
-                self.parser = self.discard()
-                next(self.parser)  # start coroutine
-                yield
-
-            assert self.state is CONNECTING
-            self.state = OPEN
-            self.events.append(response)
-
-        yield from super().parse()
-
-
-class ClientConnection(ClientProtocol):
-    def __init__(self, *args: Any, **kwargs: Any) -> None:
-        warnings.warn(  # deprecated in 11.0 - 2023-04-02
-            "ClientConnection was renamed to ClientProtocol",
-            DeprecationWarning,
-        )
-        super().__init__(*args, **kwargs)
-
-
-BACKOFF_INITIAL_DELAY = float(os.environ.get("WEBSOCKETS_BACKOFF_INITIAL_DELAY", "5"))
-BACKOFF_MIN_DELAY = float(os.environ.get("WEBSOCKETS_BACKOFF_MIN_DELAY", "3.1"))
-BACKOFF_MAX_DELAY = float(os.environ.get("WEBSOCKETS_BACKOFF_MAX_DELAY", "90.0"))
-BACKOFF_FACTOR = float(os.environ.get("WEBSOCKETS_BACKOFF_FACTOR", "1.618"))
-
-
-def backoff(
-    initial_delay: float = BACKOFF_INITIAL_DELAY,
-    min_delay: float = BACKOFF_MIN_DELAY,
-    max_delay: float = BACKOFF_MAX_DELAY,
-    factor: float = BACKOFF_FACTOR,
-) -> Generator[float, None, None]:
-    """
-    Generate a series of backoff delays between reconnection attempts.
-
-    Yields:
-        How many seconds to wait before retrying to connect.
-
-    """
-    # Add a random initial delay between 0 and 5 seconds.
-    # See 7.2.3. Recovering from Abnormal Closure in RFC 6455.
-    yield random.random() * initial_delay
-    delay = min_delay
-    while delay < max_delay:
-        yield delay
-        delay *= factor
-    while True:
-        yield max_delay

plugins/gtksourceview/lsp_manager/websockets/connection.py

@@ -1,12 +0,0 @@
-from __future__ import annotations
-
-import warnings
-
-from .protocol import SEND_EOF, Protocol as Connection, Side, State  # noqa: F401
-
-
-warnings.warn(  # deprecated in 11.0 - 2023-04-02
-    "websockets.connection was renamed to websockets.protocol "
-    "and Connection was renamed to Protocol",
-    DeprecationWarning,
-)

plugins/gtksourceview/lsp_manager/websockets/datastructures.py

@@ -1,192 +0,0 @@
-from __future__ import annotations
-
-from typing import (
-    Any,
-    Iterable,
-    Iterator,
-    Mapping,
-    MutableMapping,
-    Protocol,
-    Tuple,
-    Union,
-)
-
-
-__all__ = ["Headers", "HeadersLike", "MultipleValuesError"]
-
-
-class MultipleValuesError(LookupError):
-    """
-    Exception raised when :class:`Headers` has multiple values for a key.
-
-    """
-
-    def __str__(self) -> str:
-        # Implement the same logic as KeyError_str in Objects/exceptions.c.
-        if len(self.args) == 1:
-            return repr(self.args[0])
-        return super().__str__()
-
-
-class Headers(MutableMapping[str, str]):
-    """
-    Efficient data structure for manipulating HTTP headers.
-
-    A :class:`list` of ``(name, values)`` is inefficient for lookups.
-
-    A :class:`dict` doesn't suffice because header names are case-insensitive
-    and multiple occurrences of headers with the same name are possible.
-
-    :class:`Headers` stores HTTP headers in a hybrid data structure to provide
-    efficient insertions and lookups while preserving the original data.
-
-    In order to account for multiple values with minimal hassle,
-    :class:`Headers` follows this logic:
-
-    - When getting a header with ``headers[name]``:
-        - if there's no value, :exc:`KeyError` is raised;
-        - if there's exactly one value, it's returned;
-        - if there's more than one value, :exc:`MultipleValuesError` is raised.
-
-    - When setting a header with ``headers[name] = value``, the value is
-      appended to the list of values for that header.
-
-    - When deleting a header with ``del headers[name]``, all values for that
-      header are removed (this is slow).
-
-    Other methods for manipulating headers are consistent with this logic.
-
-    As long as no header occurs multiple times, :class:`Headers` behaves like
-    :class:`dict`, except keys are lower-cased to provide case-insensitivity.
-
-    Two methods support manipulating multiple values explicitly:
-
-    - :meth:`get_all` returns a list of all values for a header;
-    - :meth:`raw_items` returns an iterator of ``(name, values)`` pairs.
-
-    """
-
-    __slots__ = ["_dict", "_list"]
-
-    # Like dict, Headers accepts an optional "mapping or iterable" argument.
-    def __init__(self, *args: HeadersLike, **kwargs: str) -> None:
-        self._dict: dict[str, list[str]] = {}
-        self._list: list[tuple[str, str]] = []
-        self.update(*args, **kwargs)
-
-    def __str__(self) -> str:
-        return "".join(f"{key}: {value}\r\n" for key, value in self._list) + "\r\n"
-
-    def __repr__(self) -> str:
-        return f"{self.__class__.__name__}({self._list!r})"
-
-    def copy(self) -> Headers:
-        copy = self.__class__()
-        copy._dict = self._dict.copy()
-        copy._list = self._list.copy()
-        return copy
-
-    def serialize(self) -> bytes:
-        # Since headers only contain ASCII characters, we can keep this simple.
-        return str(self).encode()
-
-    # Collection methods
-
-    def __contains__(self, key: object) -> bool:
-        return isinstance(key, str) and key.lower() in self._dict
-
-    def __iter__(self) -> Iterator[str]:
-        return iter(self._dict)
-
-    def __len__(self) -> int:
-        return len(self._dict)
-
-    # MutableMapping methods
-
-    def __getitem__(self, key: str) -> str:
-        value = self._dict[key.lower()]
-        if len(value) == 1:
-            return value[0]
-        else:
-            raise MultipleValuesError(key)
-
-    def __setitem__(self, key: str, value: str) -> None:
-        self._dict.setdefault(key.lower(), []).append(value)
-        self._list.append((key, value))
-
-    def __delitem__(self, key: str) -> None:
-        key_lower = key.lower()
-        self._dict.__delitem__(key_lower)
-        # This is inefficient. Fortunately deleting HTTP headers is uncommon.
-        self._list = [(k, v) for k, v in self._list if k.lower() != key_lower]
-
-    def __eq__(self, other: Any) -> bool:
-        if not isinstance(other, Headers):
-            return NotImplemented
-        return self._dict == other._dict
-
-    def clear(self) -> None:
-        """
-        Remove all headers.
-
-        """
-        self._dict = {}
-        self._list = []
-
-    def update(self, *args: HeadersLike, **kwargs: str) -> None:
-        """
-        Update from a :class:`Headers` instance and/or keyword arguments.
-
-        """
-        args = tuple(
-            arg.raw_items() if isinstance(arg, Headers) else arg for arg in args
-        )
-        super().update(*args, **kwargs)
-
-    # Methods for handling multiple values
-
-    def get_all(self, key: str) -> list[str]:
-        """
-        Return the (possibly empty) list of all values for a header.
-
-        Args:
-            key: Header name.
-
-        """
-        return self._dict.get(key.lower(), [])
-
-    def raw_items(self) -> Iterator[tuple[str, str]]:
-        """
-        Return an iterator of all values as ``(name, value)`` pairs.
-
-        """
-        return iter(self._list)
-
-
-# copy of _typeshed.SupportsKeysAndGetItem.
-class SupportsKeysAndGetItem(Protocol):  # pragma: no cover
-    """
-    Dict-like types with ``keys() -> str`` and ``__getitem__(key: str) -> str`` methods.
-
-    """
-
-    def keys(self) -> Iterable[str]: ...
-
-    def __getitem__(self, key: str) -> str: ...
-
-
-# Change to Headers | Mapping[str, str] | ... when dropping Python < 3.10.
-HeadersLike = Union[
-    Headers,
-    Mapping[str, str],
-    # Change to tuple[str, str] when dropping Python < 3.9.
-    Iterable[Tuple[str, str]],
-    SupportsKeysAndGetItem,
-]
-"""
-Types accepted where :class:`Headers` is expected.
-
-In addition to :class:`Headers` itself, this includes dict-like types where both
-keys and values are :class:`str`.
-
-"""

plugins/gtksourceview/lsp_manager/websockets/exceptions.py

@@ -1,392 +0,0 @@
-"""
-:mod:`websockets.exceptions` defines the following hierarchy of exceptions.
-
-* :exc:`WebSocketException`
-    * :exc:`ConnectionClosed`
-        * :exc:`ConnectionClosedOK`
-        * :exc:`ConnectionClosedError`
-    * :exc:`InvalidURI`
-    * :exc:`InvalidHandshake`
-        * :exc:`SecurityError`
-        * :exc:`InvalidMessage` (legacy)
-        * :exc:`InvalidStatus`
-        * :exc:`InvalidStatusCode` (legacy)
-        * :exc:`InvalidHeader`
-            * :exc:`InvalidHeaderFormat`
-            * :exc:`InvalidHeaderValue`
-            * :exc:`InvalidOrigin`
-            * :exc:`InvalidUpgrade`
-        * :exc:`NegotiationError`
-            * :exc:`DuplicateParameter`
-            * :exc:`InvalidParameterName`
-            * :exc:`InvalidParameterValue`
-        * :exc:`AbortHandshake` (legacy)
-        * :exc:`RedirectHandshake` (legacy)
-    * :exc:`ProtocolError` (Sans-I/O)
-    * :exc:`PayloadTooBig` (Sans-I/O)
-    * :exc:`InvalidState` (Sans-I/O)
-    * :exc:`ConcurrencyError`
-
-"""
-
-from __future__ import annotations
-
-import typing
-import warnings
-
-from .imports import lazy_import
-
-
-__all__ = [
-    "WebSocketException",
-    "ConnectionClosed",
-    "ConnectionClosedOK",
-    "ConnectionClosedError",
-    "InvalidURI",
-    "InvalidHandshake",
-    "SecurityError",
-    "InvalidMessage",
-    "InvalidStatus",
-    "InvalidStatusCode",
-    "InvalidHeader",
-    "InvalidHeaderFormat",
-    "InvalidHeaderValue",
-    "InvalidOrigin",
-    "InvalidUpgrade",
-    "NegotiationError",
-    "DuplicateParameter",
-    "InvalidParameterName",
-    "InvalidParameterValue",
-    "AbortHandshake",
-    "RedirectHandshake",
-    "ProtocolError",
-    "WebSocketProtocolError",
-    "PayloadTooBig",
-    "InvalidState",
-    "ConcurrencyError",
-]
-
-
-class WebSocketException(Exception):
-    """
-    Base class for all exceptions defined by websockets.
-
-    """
-
-
-class ConnectionClosed(WebSocketException):
-    """
-    Raised when trying to interact with a closed connection.
-
-    Attributes:
-        rcvd: If a close frame was received, its code and reason are available
-            in ``rcvd.code`` and ``rcvd.reason``.
-        sent: If a close frame was sent, its code and reason are available
-            in ``sent.code`` and ``sent.reason``.
-        rcvd_then_sent: If close frames were received and sent, this attribute
-            tells in which order this happened, from the perspective of this
-            side of the connection.
-
-    """
-
-    def __init__(
-        self,
-        rcvd: frames.Close | None,
-        sent: frames.Close | None,
-        rcvd_then_sent: bool | None = None,
-    ) -> None:
-        self.rcvd = rcvd
-        self.sent = sent
-        self.rcvd_then_sent = rcvd_then_sent
-        assert (self.rcvd_then_sent is None) == (self.rcvd is None or self.sent is None)
-
-    def __str__(self) -> str:
-        if self.rcvd is None:
-            if self.sent is None:
-                return "no close frame received or sent"
-            else:
-                return f"sent {self.sent}; no close frame received"
-        else:
-            if self.sent is None:
-                return f"received {self.rcvd}; no close frame sent"
-            else:
-                if self.rcvd_then_sent:
-                    return f"received {self.rcvd}; then sent {self.sent}"
-                else:
-                    return f"sent {self.sent}; then received {self.rcvd}"
-
-    # code and reason attributes are provided for backwards-compatibility
-
-    @property
-    def code(self) -> int:
-        warnings.warn(  # deprecated in 13.1
-            "ConnectionClosed.code is deprecated; "
-            "use Protocol.close_code or ConnectionClosed.rcvd.code",
-            DeprecationWarning,
-        )
-        if self.rcvd is None:
-            return frames.CloseCode.ABNORMAL_CLOSURE
-        return self.rcvd.code
-
-    @property
-    def reason(self) -> str:
-        warnings.warn(  # deprecated in 13.1
-            "ConnectionClosed.reason is deprecated; "
-            "use Protocol.close_reason or ConnectionClosed.rcvd.reason",
-            DeprecationWarning,
-        )
-        if self.rcvd is None:
-            return ""
-        return self.rcvd.reason
-
-
-class ConnectionClosedOK(ConnectionClosed):
-    """
-    Like :exc:`ConnectionClosed`, when the connection terminated properly.
-
-    A close code with code 1000 (OK) or 1001 (going away) or without a code was
-    received and sent.
-
-    """
-
-
-class ConnectionClosedError(ConnectionClosed):
-    """
-    Like :exc:`ConnectionClosed`, when the connection terminated with an error.
-
-    A close frame with a code other than 1000 (OK) or 1001 (going away) was
-    received or sent, or the closing handshake didn't complete properly.
-
-    """
-
-
-class InvalidURI(WebSocketException):
-    """
-    Raised when connecting to a URI that isn't a valid WebSocket URI.
-
-    """
-
-    def __init__(self, uri: str, msg: str) -> None:
-        self.uri = uri
-        self.msg = msg
-
-    def __str__(self) -> str:
-        return f"{self.uri} isn't a valid URI: {self.msg}"
-
-
-class InvalidHandshake(WebSocketException):
-    """
-    Base class for exceptions raised when the opening handshake fails.
-
-    """
-
-
-class SecurityError(InvalidHandshake):
-    """
-    Raised when a handshake request or response breaks a security rule.
-
-    Security limits can be configured with :doc:`environment variables
-    <../reference/variables>`.
-
-    """
-
-
-class InvalidStatus(InvalidHandshake):
-    """
-    Raised when a handshake response rejects the WebSocket upgrade.
-
-    """
-
-    def __init__(self, response: http11.Response) -> None:
-        self.response = response
-
-    def __str__(self) -> str:
-        return (
-            "server rejected WebSocket connection: "
-            f"HTTP {self.response.status_code:d}"
-        )
-
-
-class InvalidHeader(InvalidHandshake):
-    """
-    Raised when an HTTP header doesn't have a valid format or value.
-
-    """
-
-    def __init__(self, name: str, value: str | None = None) -> None:
-        self.name = name
-        self.value = value
-
-    def __str__(self) -> str:
-        if self.value is None:
-            return f"missing {self.name} header"
-        elif self.value == "":
-            return f"empty {self.name} header"
-        else:
-            return f"invalid {self.name} header: {self.value}"
-
-
-class InvalidHeaderFormat(InvalidHeader):
-    """
-    Raised when an HTTP header cannot be parsed.
-
-    The format of the header doesn't match the grammar for that header.
-
-    """
-
-    def __init__(self, name: str, error: str, header: str, pos: int) -> None:
-        super().__init__(name, f"{error} at {pos} in {header}")
-
-
-class InvalidHeaderValue(InvalidHeader):
-    """
-    Raised when an HTTP header has a wrong value.
-
-    The format of the header is correct but the value isn't acceptable.
-
-    """
-
-
-class InvalidOrigin(InvalidHeader):
-    """
-    Raised when the Origin header in a request isn't allowed.
-
-    """
-
-    def __init__(self, origin: str | None) -> None:
-        super().__init__("Origin", origin)
-
-
-class InvalidUpgrade(InvalidHeader):
-    """
-    Raised when the Upgrade or Connection header isn't correct.
-
-    """
-
-
-class NegotiationError(InvalidHandshake):
-    """
-    Raised when negotiating an extension or a subprotocol fails.
-
-    """
-
-
-class DuplicateParameter(NegotiationError):
-    """
-    Raised when a parameter name is repeated in an extension header.
-
-    """
-
-    def __init__(self, name: str) -> None:
-        self.name = name
-
-    def __str__(self) -> str:
-        return f"duplicate parameter: {self.name}"
-
-
-class InvalidParameterName(NegotiationError):
-    """
-    Raised when a parameter name in an extension header is invalid.
-
-    """
-
-    def __init__(self, name: str) -> None:
-        self.name = name
-
-    def __str__(self) -> str:
-        return f"invalid parameter name: {self.name}"
-
-
-class InvalidParameterValue(NegotiationError):
-    """
-    Raised when a parameter value in an extension header is invalid.
-
-    """
-
-    def __init__(self, name: str, value: str | None) -> None:
-        self.name = name
-        self.value = value
-
-    def __str__(self) -> str:
-        if self.value is None:
-            return f"missing value for parameter {self.name}"
-        elif self.value == "":
-            return f"empty value for parameter {self.name}"
-        else:
-            return f"invalid value for parameter {self.name}: {self.value}"
-
-
-class ProtocolError(WebSocketException):
-    """
-    Raised when receiving or sending a frame that breaks the protocol.
-
-    The Sans-I/O implementation raises this exception when:
-
-    * receiving or sending a frame that contains invalid data;
-    * receiving or sending an invalid sequence of frames.
-
-    """
-
-
-class PayloadTooBig(WebSocketException):
-    """
-    Raised when parsing a frame with a payload that exceeds the maximum size.
-
-    The Sans-I/O layer uses this exception internally. It doesn't bubble up to
-    the I/O layer.
-
-    The :meth:`~websockets.extensions.Extension.decode` method of extensions
-    must raise :exc:`PayloadTooBig` if decoding a frame would exceed the limit.
-
-    """
-
-
-class InvalidState(WebSocketException, AssertionError):
-    """
-    Raised when sending a frame is forbidden in the current state.
-
-    Specifically, the Sans-I/O layer raises this exception when:
-
-    * sending a data frame to a connection in a state other
-      :attr:`~websockets.protocol.State.OPEN`;
-    * sending a control frame to a connection in a state other than
-      :attr:`~websockets.protocol.State.OPEN` or
-      :attr:`~websockets.protocol.State.CLOSING`.
-
-    """
-
-
-class ConcurrencyError(WebSocketException, RuntimeError):
-    """
-    Raised when receiving or sending messages concurrently.
-
-    WebSocket is a connection-oriented protocol. Reads must be serialized; so
-    must be writes. However, reading and writing concurrently is possible.
-
-    """
-
-
-# When type checking, import non-deprecated aliases eagerly. Else, import on demand.
-if typing.TYPE_CHECKING:
-    from .legacy.exceptions import (
-        AbortHandshake,
-        InvalidMessage,
-        InvalidStatusCode,
-        RedirectHandshake,
-    )
-
-    WebSocketProtocolError = ProtocolError
-else:
-    lazy_import(
-        globals(),
-        aliases={
-            "AbortHandshake": ".legacy.exceptions",
-            "InvalidMessage": ".legacy.exceptions",
-            "InvalidStatusCode": ".legacy.exceptions",
-            "RedirectHandshake": ".legacy.exceptions",
-            "WebSocketProtocolError": ".legacy.exceptions",
-        },
-    )
-
-# At the bottom to break import cycles created by type annotations.
-from . import frames, http11  # noqa: E402

plugins/gtksourceview/lsp_manager/websockets/extensions/__init__.py

@@ -1,4 +0,0 @@
-from .base import *
-
-
-__all__ = ["Extension", "ClientExtensionFactory", "ServerExtensionFactory"]

plugins/gtksourceview/lsp_manager/websockets/extensions/base.py

@@ -1,123 +0,0 @@
-from __future__ import annotations
-
-from typing import Sequence
-
-from ..frames import Frame
-from ..typing import ExtensionName, ExtensionParameter
-
-
-__all__ = ["Extension", "ClientExtensionFactory", "ServerExtensionFactory"]
-
-
-class Extension:
-    """
-    Base class for extensions.
-
-    """
-
-    name: ExtensionName
-    """Extension identifier."""
-
-    def decode(self, frame: Frame, *, max_size: int | None = None) -> Frame:
-        """
-        Decode an incoming frame.
-
-        Args:
-            frame: Incoming frame.
-            max_size: Maximum payload size in bytes.
-
-        Returns:
-            Decoded frame.
-
-        Raises:
-            PayloadTooBig: If decoding the payload exceeds ``max_size``.
-
-        """
-        raise NotImplementedError
-
-    def encode(self, frame: Frame) -> Frame:
-        """
-        Encode an outgoing frame.
-
-        Args:
-            frame: Outgoing frame.
-
-        Returns:
-            Encoded frame.
-
-        """
-        raise NotImplementedError
-
-
-class ClientExtensionFactory:
-    """
-    Base class for client-side extension factories.
-
-    """
-
-    name: ExtensionName
-    """Extension identifier."""
-
-    def get_request_params(self) -> list[ExtensionParameter]:
-        """
-        Build parameters to send to the server for this extension.
-
-        Returns:
-            Parameters to send to the server.
-
-        """
-        raise NotImplementedError
-
-    def process_response_params(
-        self,
-        params: Sequence[ExtensionParameter],
-        accepted_extensions: Sequence[Extension],
-    ) -> Extension:
-        """
-        Process parameters received from the server.
-
-        Args:
-            params: Parameters received from the server for this extension.
-            accepted_extensions: List of previously accepted extensions.
-
-        Returns:
-            An extension instance.
-
-        Raises:
-            NegotiationError: If parameters aren't acceptable.
-
-        """
-        raise NotImplementedError
-
-
-class ServerExtensionFactory:
-    """
-    Base class for server-side extension factories.
-
-    """
-
-    name: ExtensionName
-    """Extension identifier."""
-
-    def process_request_params(
-        self,
-        params: Sequence[ExtensionParameter],
-        accepted_extensions: Sequence[Extension],
-    ) -> tuple[list[ExtensionParameter], Extension]:
-        """
-        Process parameters received from the client.
-
-        Args:
-            params: Parameters received from the client for this extension.
-            accepted_extensions: List of previously accepted extensions.
-
-        Returns:
-            To accept the offer, parameters to send to the client for this
-            extension and an extension instance.
-
-        Raises:
-            NegotiationError: To reject the offer, if parameters received from
-                the client aren't acceptable.
-
-        """
-        raise NotImplementedError

plugins/gtksourceview/lsp_manager/websockets/extensions/permessage_deflate.py

@@ -1,670 +0,0 @@
-from __future__ import annotations
-
-import dataclasses
-import zlib
-from typing import Any, Sequence
-
-from .. import frames
-from ..exceptions import (
-    DuplicateParameter,
-    InvalidParameterName,
-    InvalidParameterValue,
-    NegotiationError,
-    PayloadTooBig,
-    ProtocolError,
-)
-from ..typing import ExtensionName, ExtensionParameter
-from .base import ClientExtensionFactory, Extension, ServerExtensionFactory
-
-
-__all__ = [
-    "PerMessageDeflate",
-    "ClientPerMessageDeflateFactory",
-    "enable_client_permessage_deflate",
-    "ServerPerMessageDeflateFactory",
-    "enable_server_permessage_deflate",
-]
-
-_EMPTY_UNCOMPRESSED_BLOCK = b"\x00\x00\xff\xff"
-
-_MAX_WINDOW_BITS_VALUES = [str(bits) for bits in range(8, 16)]
-
-
-class PerMessageDeflate(Extension):
-    """
-    Per-Message Deflate extension.
-
-    """
-
-    name = ExtensionName("permessage-deflate")
-
-    def __init__(
-        self,
-        remote_no_context_takeover: bool,
-        local_no_context_takeover: bool,
-        remote_max_window_bits: int,
-        local_max_window_bits: int,
-        compress_settings: dict[Any, Any] | None = None,
-    ) -> None:
-        """
-        Configure the Per-Message Deflate extension.
-
-        """
-        if compress_settings is None:
-            compress_settings = {}
-
-        assert remote_no_context_takeover in [False, True]
-        assert local_no_context_takeover in [False, True]
-        assert 8 <= remote_max_window_bits <= 15
-        assert 8 <= local_max_window_bits <= 15
-        assert "wbits" not in compress_settings
-
-        self.remote_no_context_takeover = remote_no_context_takeover
-        self.local_no_context_takeover = local_no_context_takeover
-        self.remote_max_window_bits = remote_max_window_bits
-        self.local_max_window_bits = local_max_window_bits
-        self.compress_settings = compress_settings
-
-        if not self.remote_no_context_takeover:
-            self.decoder = zlib.decompressobj(wbits=-self.remote_max_window_bits)
-
-        if not self.local_no_context_takeover:
-            self.encoder = zlib.compressobj(
-                wbits=-self.local_max_window_bits,
-                **self.compress_settings,
-            )
-
-        # To handle continuation frames properly, we must keep track of
-        # whether that initial frame was encoded.
-        self.decode_cont_data = False
-        # There's no need for self.encode_cont_data because we always encode
-        # outgoing frames, so it would always be True.
-
-    def __repr__(self) -> str:
-        return (
-            f"PerMessageDeflate("
-            f"remote_no_context_takeover={self.remote_no_context_takeover}, "
-            f"local_no_context_takeover={self.local_no_context_takeover}, "
-            f"remote_max_window_bits={self.remote_max_window_bits}, "
-            f"local_max_window_bits={self.local_max_window_bits})"
-        )
-
-    def decode(
-        self,
-        frame: frames.Frame,
-        *,
-        max_size: int | None = None,
-    ) -> frames.Frame:
-        """
-        Decode an incoming frame.
-
-        """
-        # Skip control frames.
-        if frame.opcode in frames.CTRL_OPCODES:
-            return frame
-
-        # Handle continuation data frames:
-        # - skip if the message isn't encoded
-        # - reset "decode continuation data" flag if it's a final frame
-        if frame.opcode is frames.OP_CONT:
-            if not self.decode_cont_data:
-                return frame
-            if frame.fin:
-                self.decode_cont_data = False
-
-        # Handle text and binary data frames:
-        # - skip if the message isn't encoded
-        # - unset the rsv1 flag on the first frame of a compressed message
-        # - set "decode continuation data" flag if it's a non-final frame
-        else:
-            if not frame.rsv1:
-                return frame
-            frame = dataclasses.replace(frame, rsv1=False)
-            if not frame.fin:
-                self.decode_cont_data = True
-
-            # Re-initialize per-message decoder.
-            if self.remote_no_context_takeover:
-                self.decoder = zlib.decompressobj(wbits=-self.remote_max_window_bits)
-
-        # Uncompress data. Protect against zip bombs by preventing zlib from
-        # decompressing more than max_length bytes (except when the limit is
-        # disabled with max_size = None).
-        data = frame.data
-        if frame.fin:
-            data += _EMPTY_UNCOMPRESSED_BLOCK
-        max_length = 0 if max_size is None else max_size
-        try:
-            data = self.decoder.decompress(data, max_length)
-        except zlib.error as exc:
-            raise ProtocolError("decompression failed") from exc
-        if self.decoder.unconsumed_tail:
-            raise PayloadTooBig(f"over size limit (? > {max_size} bytes)")
-
-        # Allow garbage collection of the decoder if it won't be reused.
-        if frame.fin and self.remote_no_context_takeover:
-            del self.decoder
-
-        return dataclasses.replace(frame, data=data)
-
-    def encode(self, frame: frames.Frame) -> frames.Frame:
-        """
-        Encode an outgoing frame.
-
-        """
-        # Skip control frames.
-        if frame.opcode in frames.CTRL_OPCODES:
-            return frame
-
-        # Since we always encode messages, there's no "encode continuation
-        # data" flag similar to "decode continuation data" at this time.
-
-        if frame.opcode is not frames.OP_CONT:
-            # Set the rsv1 flag on the first frame of a compressed message.
-            frame = dataclasses.replace(frame, rsv1=True)
-            # Re-initialize per-message decoder.
-            if self.local_no_context_takeover:
-                self.encoder = zlib.compressobj(
-                    wbits=-self.local_max_window_bits,
-                    **self.compress_settings,
-                )
-
-        # Compress data.
-        data = self.encoder.compress(frame.data) + self.encoder.flush(zlib.Z_SYNC_FLUSH)
-        if frame.fin and data.endswith(_EMPTY_UNCOMPRESSED_BLOCK):
-            data = data[:-4]
-
-        # Allow garbage collection of the encoder if it won't be reused.
-        if frame.fin and self.local_no_context_takeover:
-            del self.encoder
-
-        return dataclasses.replace(frame, data=data)
-
-
-def _build_parameters(
-    server_no_context_takeover: bool,
-    client_no_context_takeover: bool,
-    server_max_window_bits: int | None,
-    client_max_window_bits: int | bool | None,
-) -> list[ExtensionParameter]:
-    """
-    Build a list of ``(name, value)`` pairs for some compression parameters.
-
-    """
-    params: list[ExtensionParameter] = []
-    if server_no_context_takeover:
-        params.append(("server_no_context_takeover", None))
-    if client_no_context_takeover:
-        params.append(("client_no_context_takeover", None))
-    if server_max_window_bits:
-        params.append(("server_max_window_bits", str(server_max_window_bits)))
-    if client_max_window_bits is True:  # only in handshake requests
-        params.append(("client_max_window_bits", None))
-    elif client_max_window_bits:
-        params.append(("client_max_window_bits", str(client_max_window_bits)))
-    return params
-
-
-def _extract_parameters(
-    params: Sequence[ExtensionParameter], *, is_server: bool
-) -> tuple[bool, bool, int | None, int | bool | None]:
-    """
-    Extract compression parameters from a list of ``(name, value)`` pairs.
-
-    If ``is_server`` is :obj:`True`, ``client_max_window_bits`` may be
-    provided without a value. This is only allowed in handshake requests.
-
-    """
-    server_no_context_takeover: bool = False
-    client_no_context_takeover: bool = False
-    server_max_window_bits: int | None = None
-    client_max_window_bits: int | bool | None = None
-
-    for name, value in params:
-        if name == "server_no_context_takeover":
-            if server_no_context_takeover:
-                raise DuplicateParameter(name)
-            if value is None:
-                server_no_context_takeover = True
-            else:
-                raise InvalidParameterValue(name, value)
-
-        elif name == "client_no_context_takeover":
-            if client_no_context_takeover:
-                raise DuplicateParameter(name)
-            if value is None:
-                client_no_context_takeover = True
-            else:
-                raise InvalidParameterValue(name, value)
-
-        elif name == "server_max_window_bits":
-            if server_max_window_bits is not None:
-                raise DuplicateParameter(name)
-            if value in _MAX_WINDOW_BITS_VALUES:
-                server_max_window_bits = int(value)
-            else:
-                raise InvalidParameterValue(name, value)
-
-        elif name == "client_max_window_bits":
-            if client_max_window_bits is not None:
-                raise DuplicateParameter(name)
-            if is_server and value is None:  # only in handshake requests
-                client_max_window_bits = True
-            elif value in _MAX_WINDOW_BITS_VALUES:
-                client_max_window_bits = int(value)
-            else:
-                raise InvalidParameterValue(name, value)
-
-        else:
-            raise InvalidParameterName(name)
-
-    return (
-        server_no_context_takeover,
-        client_no_context_takeover,
-        server_max_window_bits,
-        client_max_window_bits,
-    )
-
-
-class ClientPerMessageDeflateFactory(ClientExtensionFactory):
-    """
-    Client-side extension factory for the Per-Message Deflate extension.
-
-    Parameters behave as described in `section 7.1 of RFC 7692`_.
-
-    .. _section 7.1 of RFC 7692: https://datatracker.ietf.org/doc/html/rfc7692#section-7.1
-
-    Set them to :obj:`True` to include them in the negotiation offer without a
-    value or to an integer value to include them with this value.
-
-    Args:
-        server_no_context_takeover: Prevent server from using context takeover.
-        client_no_context_takeover: Prevent client from using context takeover.
-        server_max_window_bits: Maximum size of the server's LZ77 sliding window
-            in bits, between 8 and 15.
-        client_max_window_bits: Maximum size of the client's LZ77 sliding window
-            in bits, between 8 and 15, or :obj:`True` to indicate support without
-            setting a limit.
-        compress_settings: Additional keyword arguments for :func:`zlib.compressobj`,
-            excluding ``wbits``.
-
-    """
-
-    name = ExtensionName("permessage-deflate")
-
-    def __init__(
-        self,
-        server_no_context_takeover: bool = False,
-        client_no_context_takeover: bool = False,
-        server_max_window_bits: int | None = None,
-        client_max_window_bits: int | bool | None = True,
-        compress_settings: dict[str, Any] | None = None,
-    ) -> None:
-        """
-        Configure the Per-Message Deflate extension factory.
-
-        """
-        if not (server_max_window_bits is None or 8 <= server_max_window_bits <= 15):
-            raise ValueError("server_max_window_bits must be between 8 and 15")
-        if not (
-            client_max_window_bits is None
-            or client_max_window_bits is True
-            or 8 <= client_max_window_bits <= 15
-        ):
-            raise ValueError("client_max_window_bits must be between 8 and 15")
-        if compress_settings is not None and "wbits" in compress_settings:
-            raise ValueError(
-                "compress_settings must not include wbits, "
-                "set client_max_window_bits instead"
-            )
-
-        self.server_no_context_takeover = server_no_context_takeover
-        self.client_no_context_takeover = client_no_context_takeover
-        self.server_max_window_bits = server_max_window_bits
-        self.client_max_window_bits = client_max_window_bits
-        self.compress_settings = compress_settings
-
-    def get_request_params(self) -> list[ExtensionParameter]:
-        """
-        Build request parameters.
-
-        """
-        return _build_parameters(
-            self.server_no_context_takeover,
-            self.client_no_context_takeover,
-            self.server_max_window_bits,
-            self.client_max_window_bits,
-        )
-
-    def process_response_params(
-        self,
-        params: Sequence[ExtensionParameter],
-        accepted_extensions: Sequence[Extension],
-    ) -> PerMessageDeflate:
-        """
-        Process response parameters.
-
-        Return an extension instance.
-
-        """
-        if any(other.name == self.name for other in accepted_extensions):
-            raise NegotiationError(f"received duplicate {self.name}")
-
-        # Request parameters are available in instance variables.
-
-        # Load response parameters in local variables.
-        (
-            server_no_context_takeover,
-            client_no_context_takeover,
-            server_max_window_bits,
-            client_max_window_bits,
-        ) = _extract_parameters(params, is_server=False)
-
-        # After comparing the request and the response, the final
-        # configuration must be available in the local variables.
-
-        # server_no_context_takeover
-        #
-        #   Req.    Resp.   Result
-        #   ------  ------  --------------------------------------------------
-        #   False   False   False
-        #   False   True    True
-        #   True    False   Error!
-        #   True    True    True
-
-        if self.server_no_context_takeover:
-            if not server_no_context_takeover:
-                raise NegotiationError("expected server_no_context_takeover")
-
-        # client_no_context_takeover
-        #
-        #   Req.    Resp.   Result
-        #   ------  ------  --------------------------------------------------
-        #   False   False   False
-        #   False   True    True
-        #   True    False   True - must change value
-        #   True    True    True
-
-        if self.client_no_context_takeover:
-            if not client_no_context_takeover:
-                client_no_context_takeover = True
-
-        # server_max_window_bits
-
-        #   Req.    Resp.   Result
-        #   ------  ------  --------------------------------------------------
-        #   None    None    None
-        #   None    8≤M≤15  M
-        #   8≤N≤15  None    Error!
-        #   8≤N≤15  8≤M≤N   M
-        #   8≤N≤15  N<M≤15  Error!
-
-        if self.server_max_window_bits is None:
-            pass
-
-        else:
-            if server_max_window_bits is None:
-                raise NegotiationError("expected server_max_window_bits")
-            elif server_max_window_bits > self.server_max_window_bits:
-                raise NegotiationError("unsupported server_max_window_bits")
-
-        # client_max_window_bits
-
-        #   Req.    Resp.   Result
-        #   ------  ------  --------------------------------------------------
-        #   None    None    None
-        #   None    8≤M≤15  Error!
-        #   True    None    None
-        #   True    8≤M≤15  M
-        #   8≤N≤15  None    N - must change value
-        #   8≤N≤15  8≤M≤N   M
-        #   8≤N≤15  N<M≤15  Error!
-
-        if self.client_max_window_bits is None:
-            if client_max_window_bits is not None:
-                raise NegotiationError("unexpected client_max_window_bits")
-
-        elif self.client_max_window_bits is True:
-            pass
-
-        else:
-            if client_max_window_bits is None:
-                client_max_window_bits = self.client_max_window_bits
-            elif client_max_window_bits > self.client_max_window_bits:
-                raise NegotiationError("unsupported client_max_window_bits")
-
-        return PerMessageDeflate(
-            server_no_context_takeover,  # remote_no_context_takeover
-            client_no_context_takeover,  # local_no_context_takeover
-            server_max_window_bits or 15,  # remote_max_window_bits
-            client_max_window_bits or 15,  # local_max_window_bits
-            self.compress_settings,
-        )
-
-
-def enable_client_permessage_deflate(
-    extensions: Sequence[ClientExtensionFactory] | None,
-) -> Sequence[ClientExtensionFactory]:
-    """
-    Enable Per-Message Deflate with default settings in client extensions.
-
-    If the extension is already present, perhaps with non-default settings,
-    the configuration isn't changed.
-
-    """
-    if extensions is None:
-        extensions = []
-    if not any(
-        extension_factory.name == ClientPerMessageDeflateFactory.name
-        for extension_factory in extensions
-    ):
-        extensions = list(extensions) + [
-            ClientPerMessageDeflateFactory(
-                compress_settings={"memLevel": 5},
-            )
-        ]
-    return extensions
-
-
-class ServerPerMessageDeflateFactory(ServerExtensionFactory):
-    """
-    Server-side extension factory for the Per-Message Deflate extension.
-
-    Parameters behave as described in `section 7.1 of RFC 7692`_.
-
-    .. _section 7.1 of RFC 7692: https://datatracker.ietf.org/doc/html/rfc7692#section-7.1
-
-    Set them to :obj:`True` to include them in the negotiation offer without a
-    value or to an integer value to include them with this value.
-
-    Args:
-        server_no_context_takeover: Prevent server from using context takeover.
-        client_no_context_takeover: Prevent client from using context takeover.
-        server_max_window_bits: Maximum size of the server's LZ77 sliding window
-            in bits, between 8 and 15.
-        client_max_window_bits: Maximum size of the client's LZ77 sliding window
-            in bits, between 8 and 15.
-        compress_settings: Additional keyword arguments for :func:`zlib.compressobj`,
-            excluding ``wbits``.
-        require_client_max_window_bits: Do not enable compression at all if
-            client doesn't advertise support for ``client_max_window_bits``;
-            the default behavior is to enable compression without enforcing
-            ``client_max_window_bits``.
-
-    """
-
-    name = ExtensionName("permessage-deflate")
-
-    def __init__(
-        self,
-        server_no_context_takeover: bool = False,
-        client_no_context_takeover: bool = False,
-        server_max_window_bits: int | None = None,
-        client_max_window_bits: int | None = None,
-        compress_settings: dict[str, Any] | None = None,
-        require_client_max_window_bits: bool = False,
-    ) -> None:
-        """
-        Configure the Per-Message Deflate extension factory.
-
-        """
-        if not (server_max_window_bits is None or 8 <= server_max_window_bits <= 15):
-            raise ValueError("server_max_window_bits must be between 8 and 15")
-        if not (client_max_window_bits is None or 8 <= client_max_window_bits <= 15):
-            raise ValueError("client_max_window_bits must be between 8 and 15")
-        if compress_settings is not None and "wbits" in compress_settings:
-            raise ValueError(
-                "compress_settings must not include wbits, "
-                "set server_max_window_bits instead"
-            )
-        if client_max_window_bits is None and require_client_max_window_bits:
-            raise ValueError(
-                "require_client_max_window_bits is enabled, "
-                "but client_max_window_bits isn't configured"
-            )
-
-        self.server_no_context_takeover = server_no_context_takeover
-        self.client_no_context_takeover = client_no_context_takeover
-        self.server_max_window_bits = server_max_window_bits
-        self.client_max_window_bits = client_max_window_bits
-        self.compress_settings = compress_settings
-        self.require_client_max_window_bits = require_client_max_window_bits
-
-    def process_request_params(
-        self,
-        params: Sequence[ExtensionParameter],
-        accepted_extensions: Sequence[Extension],
-    ) -> tuple[list[ExtensionParameter], PerMessageDeflate]:
-        """
-        Process request parameters.
-
-        Return response params and an extension instance.
-
-        """
-        if any(other.name == self.name for other in accepted_extensions):
-            raise NegotiationError(f"skipped duplicate {self.name}")
-
-        # Load request parameters in local variables.
-        (
-            server_no_context_takeover,
-            client_no_context_takeover,
-            server_max_window_bits,
-            client_max_window_bits,
-        ) = _extract_parameters(params, is_server=True)
-
-        # Configuration parameters are available in instance variables.
-
-        # After comparing the request and the configuration, the response must
-        # be available in the local variables.
-
-        # server_no_context_takeover
-        #
-        #   Config  Req.    Resp.
-        #   ------  ------  --------------------------------------------------
-        #   False   False   False
-        #   False   True    True
-        #   True    False   True - must change value to True
-        #   True    True    True
-
-        if self.server_no_context_takeover:
-            if not server_no_context_takeover:
-                server_no_context_takeover = True
-
-        # client_no_context_takeover
-        #
-        #   Config  Req.    Resp.
-        #   ------  ------  --------------------------------------------------
-        #   False   False   False
-        #   False   True    True (or False)
-        #   True    False   True - must change value to True
-        #   True    True    True (or False)
-
-        if self.client_no_context_takeover:
-            if not client_no_context_takeover:
-                client_no_context_takeover = True
-
-        # server_max_window_bits
-
-        #   Config  Req.    Resp.
-        #   ------  ------  --------------------------------------------------
-        #   None    None    None
-        #   None    8≤M≤15  M
-        #   8≤N≤15  None    N - must change value
-        #   8≤N≤15  8≤M≤N   M
-        #   8≤N≤15  N<M≤15  N - must change value
-
-        if self.server_max_window_bits is None:
-            pass
-
-        else:
-            if server_max_window_bits is None:
-                server_max_window_bits = self.server_max_window_bits
-            elif server_max_window_bits > self.server_max_window_bits:
-                server_max_window_bits = self.server_max_window_bits
-
-        # client_max_window_bits
-
-        #   Config  Req.    Resp.
-        #   ------  ------  --------------------------------------------------
-        #   None    None    None
-        #   None    True    None - must change value
-        #   None    8≤M≤15  M (or None)
-        #   8≤N≤15  None    None or Error!
-        #   8≤N≤15  True    N - must change value
-        #   8≤N≤15  8≤M≤N   M (or None)
-        #   8≤N≤15  N<M≤15  N
-
-        if self.client_max_window_bits is None:
-            if client_max_window_bits is True:
-                client_max_window_bits = self.client_max_window_bits
-
-        else:
-            if client_max_window_bits is None:
-                if self.require_client_max_window_bits:
-                    raise NegotiationError("required client_max_window_bits")
-            elif client_max_window_bits is True:
-                client_max_window_bits = self.client_max_window_bits
-            elif self.client_max_window_bits < client_max_window_bits:
-                client_max_window_bits = self.client_max_window_bits
-
-        return (
-            _build_parameters(
-                server_no_context_takeover,
-                client_no_context_takeover,
-                server_max_window_bits,
-                client_max_window_bits,
-            ),
-            PerMessageDeflate(
-                client_no_context_takeover,  # remote_no_context_takeover
-                server_no_context_takeover,  # local_no_context_takeover
-                client_max_window_bits or 15,  # remote_max_window_bits
-                server_max_window_bits or 15,  # local_max_window_bits
-                self.compress_settings,
-            ),
-        )
-
-
-def enable_server_permessage_deflate(
-    extensions: Sequence[ServerExtensionFactory] | None,
-) -> Sequence[ServerExtensionFactory]:
-    """
-    Enable Per-Message Deflate with default settings in server extensions.
-
-    If the extension is already present, perhaps with non-default settings,
-    the configuration isn't changed.
-
-    """
-    if extensions is None:
-        extensions = []
-    if not any(
-        ext_factory.name == ServerPerMessageDeflateFactory.name
-        for ext_factory in extensions
-    ):
-        extensions = list(extensions) + [
-            ServerPerMessageDeflateFactory(
-                server_max_window_bits=12,
-                client_max_window_bits=12,
-                compress_settings={"memLevel": 5},
-            )
-        ]
-    return extensions

plugins/gtksourceview/lsp_manager/websockets/frames.py

@@ -1,429 +0,0 @@
-from __future__ import annotations
-
-import dataclasses
-import enum
-import io
-import os
-import secrets
-import struct
-from typing import Callable, Generator, Sequence
-
-from .exceptions import PayloadTooBig, ProtocolError
-
-
-try:
-    from .speedups import apply_mask
-except ImportError:
-    from .utils import apply_mask
-
-
-__all__ = [
-    "Opcode",
-    "OP_CONT",
-    "OP_TEXT",
-    "OP_BINARY",
-    "OP_CLOSE",
-    "OP_PING",
-    "OP_PONG",
-    "DATA_OPCODES",
-    "CTRL_OPCODES",
-    "Frame",
-    "Close",
-]
-
-
-class Opcode(enum.IntEnum):
-    """Opcode values for WebSocket frames."""
-
-    CONT, TEXT, BINARY = 0x00, 0x01, 0x02
-    CLOSE, PING, PONG = 0x08, 0x09, 0x0A
-
-
-OP_CONT = Opcode.CONT
-OP_TEXT = Opcode.TEXT
-OP_BINARY = Opcode.BINARY
-OP_CLOSE = Opcode.CLOSE
-OP_PING = Opcode.PING
-OP_PONG = Opcode.PONG
-
-DATA_OPCODES = OP_CONT, OP_TEXT, OP_BINARY
-CTRL_OPCODES = OP_CLOSE, OP_PING, OP_PONG
-
-
-class CloseCode(enum.IntEnum):
-    """Close code values for WebSocket close frames."""
-
-    NORMAL_CLOSURE = 1000
-    GOING_AWAY = 1001
-    PROTOCOL_ERROR = 1002
-    UNSUPPORTED_DATA = 1003
-    # 1004 is reserved
-    NO_STATUS_RCVD = 1005
-    ABNORMAL_CLOSURE = 1006
-    INVALID_DATA = 1007
-    POLICY_VIOLATION = 1008
-    MESSAGE_TOO_BIG = 1009
-    MANDATORY_EXTENSION = 1010
-    INTERNAL_ERROR = 1011
-    SERVICE_RESTART = 1012
-    TRY_AGAIN_LATER = 1013
-    BAD_GATEWAY = 1014
-    TLS_HANDSHAKE = 1015
-
-
-# See https://www.iana.org/assignments/websocket/websocket.xhtml
-CLOSE_CODE_EXPLANATIONS: dict[int, str] = {
-    CloseCode.NORMAL_CLOSURE: "OK",
-    CloseCode.GOING_AWAY: "going away",
-    CloseCode.PROTOCOL_ERROR: "protocol error",
-    CloseCode.UNSUPPORTED_DATA: "unsupported data",
-    CloseCode.NO_STATUS_RCVD: "no status received [internal]",
-    CloseCode.ABNORMAL_CLOSURE: "abnormal closure [internal]",
-    CloseCode.INVALID_DATA: "invalid frame payload data",
-    CloseCode.POLICY_VIOLATION: "policy violation",
-    CloseCode.MESSAGE_TOO_BIG: "message too big",
-    CloseCode.MANDATORY_EXTENSION: "mandatory extension",
-    CloseCode.INTERNAL_ERROR: "internal error",
-    CloseCode.SERVICE_RESTART: "service restart",
-    CloseCode.TRY_AGAIN_LATER: "try again later",
-    CloseCode.BAD_GATEWAY: "bad gateway",
-    CloseCode.TLS_HANDSHAKE: "TLS handshake failure [internal]",
-}
-
-
-# Close code that are allowed in a close frame.
-# Using a set optimizes `code in EXTERNAL_CLOSE_CODES`.
-EXTERNAL_CLOSE_CODES = {
-    CloseCode.NORMAL_CLOSURE,
-    CloseCode.GOING_AWAY,
-    CloseCode.PROTOCOL_ERROR,
-    CloseCode.UNSUPPORTED_DATA,
-    CloseCode.INVALID_DATA,
-    CloseCode.POLICY_VIOLATION,
-    CloseCode.MESSAGE_TOO_BIG,
-    CloseCode.MANDATORY_EXTENSION,
-    CloseCode.INTERNAL_ERROR,
-    CloseCode.SERVICE_RESTART,
-    CloseCode.TRY_AGAIN_LATER,
-    CloseCode.BAD_GATEWAY,
-}
-
-
-OK_CLOSE_CODES = {
-    CloseCode.NORMAL_CLOSURE,
-    CloseCode.GOING_AWAY,
-    CloseCode.NO_STATUS_RCVD,
-}
-
-
-BytesLike = bytes, bytearray, memoryview
-
-
-@dataclasses.dataclass
-class Frame:
-    """
-    WebSocket frame.
-
-    Attributes:
-        opcode: Opcode.
-        data: Payload data.
-        fin: FIN bit.
-        rsv1: RSV1 bit.
-        rsv2: RSV2 bit.
-        rsv3: RSV3 bit.
-
-    Only these fields are needed. The MASK bit, payload length and masking-key
-    are handled on the fly when parsing and serializing frames.
-
-    """
-
-    opcode: Opcode
-    data: bytes
-    fin: bool = True
-    rsv1: bool = False
-    rsv2: bool = False
-    rsv3: bool = False
-
-    # Configure if you want to see more in logs. Should be a multiple of 3.
-    MAX_LOG_SIZE = int(os.environ.get("WEBSOCKETS_MAX_LOG_SIZE", "75"))
-
-    def __str__(self) -> str:
-        """
-        Return a human-readable representation of a frame.
-
-        """
-        coding = None
-        length = f"{len(self.data)} byte{'' if len(self.data) == 1 else 's'}"
-        non_final = "" if self.fin else "continued"
-
-        if self.opcode is OP_TEXT:
-            # Decoding only the beginning and the end is needlessly hard.
-            # Decode the entire payload then elide later if necessary.
-            data = repr(self.data.decode())
-        elif self.opcode is OP_BINARY:
-            # We'll show at most the first 16 bytes and the last 8 bytes.
-            # Encode just what we need, plus two dummy bytes to elide later.
-            binary = self.data
-            if len(binary) > self.MAX_LOG_SIZE // 3:
-                cut = (self.MAX_LOG_SIZE // 3 - 1) // 3  # by default cut = 8
-                binary = b"".join([binary[: 2 * cut], b"\x00\x00", binary[-cut:]])
-            data = " ".join(f"{byte:02x}" for byte in binary)
-        elif self.opcode is OP_CLOSE:
-            data = str(Close.parse(self.data))
-        elif self.data:
-            # We don't know if a Continuation frame contains text or binary.
-            # Ping and Pong frames could contain UTF-8.
-            # Attempt to decode as UTF-8 and display it as text; fallback to
-            # binary. If self.data is a memoryview, it has no decode() method,
-            # which raises AttributeError.
-            try:
-                data = repr(self.data.decode())
-                coding = "text"
-            except (UnicodeDecodeError, AttributeError):
-                binary = self.data
-                if len(binary) > self.MAX_LOG_SIZE // 3:
-                    cut = (self.MAX_LOG_SIZE // 3 - 1) // 3  # by default cut = 8
-                    binary = b"".join([binary[: 2 * cut], b"\x00\x00", binary[-cut:]])
-                data = " ".join(f"{byte:02x}" for byte in binary)
-                coding = "binary"
-        else:
-            data = "''"
-
-        if len(data) > self.MAX_LOG_SIZE:
-            cut = self.MAX_LOG_SIZE // 3 - 1  # by default cut = 24
-            data = data[: 2 * cut] + "..." + data[-cut:]
-
-        metadata = ", ".join(filter(None, [coding, length, non_final]))
-
-        return f"{self.opcode.name} {data} [{metadata}]"
-
-    @classmethod
-    def parse(
-        cls,
-        read_exact: Callable[[int], Generator[None, None, bytes]],
-        *,
-        mask: bool,
-        max_size: int | None = None,
-        extensions: Sequence[extensions.Extension] | None = None,
-    ) -> Generator[None, None, Frame]:
-        """
-        Parse a WebSocket frame.
-
-        This is a generator-based coroutine.
-
-        Args:
-            read_exact: Generator-based coroutine that reads the requested
-                bytes or raises an exception if there isn't enough data.
-            mask: Whether the frame should be masked i.e. whether the read
-                happens on the server side.
-            max_size: Maximum payload size in bytes.
-            extensions: List of extensions, applied in reverse order.
-
-        Raises:
-            EOFError: If the connection is closed without a full WebSocket frame.
-            UnicodeDecodeError: If the frame contains invalid UTF-8.
-            PayloadTooBig: If the frame's payload size exceeds ``max_size``.
-            ProtocolError: If the frame contains incorrect values.
-
-        """
-        # Read the header.
-        data = yield from read_exact(2)
-        head1, head2 = struct.unpack("!BB", data)
-
-        # While not Pythonic, this is marginally faster than calling bool().
-        fin = True if head1 & 0b10000000 else False
-        rsv1 = True if head1 & 0b01000000 else False
-        rsv2 = True if head1 & 0b00100000 else False
-        rsv3 = True if head1 & 0b00010000 else False
-
-        try:
-            opcode = Opcode(head1 & 0b00001111)
-        except ValueError as exc:
-            raise ProtocolError("invalid opcode") from exc
-
-        if (True if head2 & 0b10000000 else False) != mask:
-            raise ProtocolError("incorrect masking")
-
-        length = head2 & 0b01111111
-        if length == 126:
-            data = yield from read_exact(2)
-            (length,) = struct.unpack("!H", data)
-        elif length == 127:
-            data = yield from read_exact(8)
-            (length,) = struct.unpack("!Q", data)
-        if max_size is not None and length > max_size:
-            raise PayloadTooBig(f"over size limit ({length} > {max_size} bytes)")
-        if mask:
-            mask_bytes = yield from read_exact(4)
-
-        # Read the data.
-        data = yield from read_exact(length)
-        if mask:
-            data = apply_mask(data, mask_bytes)
-
-        frame = cls(opcode, data, fin, rsv1, rsv2, rsv3)
-
-        if extensions is None:
-            extensions = []
-        for extension in reversed(extensions):
-            frame = extension.decode(frame, max_size=max_size)
-
-        frame.check()
-
-        return frame
-
-    def serialize(
-        self,
-        *,
-        mask: bool,
-        extensions: Sequence[extensions.Extension] | None = None,
-    ) -> bytes:
-        """
-        Serialize a WebSocket frame.
-
-        Args:
-            mask: Whether the frame should be masked i.e. whether the write
-                happens on the client side.
-            extensions: List of extensions, applied in order.
-
-        Raises:
-            ProtocolError: If the frame contains incorrect values.
-
-        """
-        self.check()
-
-        if extensions is None:
-            extensions = []
-        for extension in extensions:
-            self = extension.encode(self)
-
-        output = io.BytesIO()
-
-        # Prepare the header.
-        head1 = (
-            (0b10000000 if self.fin else 0)
-            | (0b01000000 if self.rsv1 else 0)
-            | (0b00100000 if self.rsv2 else 0)
-            | (0b00010000 if self.rsv3 else 0)
-            | self.opcode
-        )
-
-        head2 = 0b10000000 if mask else 0
-
-        length = len(self.data)
-        if length < 126:
-            output.write(struct.pack("!BB", head1, head2 | length))
-        elif length < 65536:
-            output.write(struct.pack("!BBH", head1, head2 | 126, length))
-        else:
-            output.write(struct.pack("!BBQ", head1, head2 | 127, length))
-
-        if mask:
-            mask_bytes = secrets.token_bytes(4)
-            output.write(mask_bytes)
-
-        # Prepare the data.
-        if mask:
-            data = apply_mask(self.data, mask_bytes)
-        else:
-            data = self.data
-        output.write(data)
-
-        return output.getvalue()
-
-    def check(self) -> None:
-        """
-        Check that reserved bits and opcode have acceptable values.
-
-        Raises:
-            ProtocolError: If a reserved bit or the opcode is invalid.
-
-        """
-        if self.rsv1 or self.rsv2 or self.rsv3:
-            raise ProtocolError("reserved bits must be 0")
-
-        if self.opcode in CTRL_OPCODES:
-            if len(self.data) > 125:
-                raise ProtocolError("control frame too long")
-            if not self.fin:
-                raise ProtocolError("fragmented control frame")
-
-
-@dataclasses.dataclass
-class Close:
-    """
-    Code and reason for WebSocket close frames.
-
-    Attributes:
-        code: Close code.
-        reason: Close reason.
-
-    """
-
-    code: int
-    reason: str
-
-    def __str__(self) -> str:
-        """
-        Return a human-readable representation of a close code and reason.
-
-        """
-        if 3000 <= self.code < 4000:
-            explanation = "registered"
-        elif 4000 <= self.code < 5000:
-            explanation = "private use"
-        else:
-            explanation = CLOSE_CODE_EXPLANATIONS.get(self.code, "unknown")
-        result = f"{self.code} ({explanation})"
-
-        if self.reason:
-            result = f"{result} {self.reason}"
-
-        return result
-
-    @classmethod
-    def parse(cls, data: bytes) -> Close:
-        """
-        Parse the payload of a close frame.
-
-        Args:
-            data: Payload of the close frame.
-
-        Raises:
-            ProtocolError: If data is ill-formed.
-            UnicodeDecodeError: If the reason isn't valid UTF-8.
-
-        """
-        if len(data) >= 2:
-            (code,) = struct.unpack("!H", data[:2])
-            reason = data[2:].decode()
-            close = cls(code, reason)
-            close.check()
-            return close
-        elif len(data) == 0:
-            return cls(CloseCode.NO_STATUS_RCVD, "")
-        else:
-            raise ProtocolError("close frame too short")
-
-    def serialize(self) -> bytes:
-        """
-        Serialize the payload of a close frame.
-
-        """
-        self.check()
-        return struct.pack("!H", self.code) + self.reason.encode()
-
-    def check(self) -> None:
-        """
-        Check that the close code has a valid value for a close frame.
-
-        Raises:
-            ProtocolError: If the close code is invalid.
-
-        """
-        if not (self.code in EXTERNAL_CLOSE_CODES or 3000 <= self.code < 5000):
-            raise ProtocolError("invalid status code")
-
-
-# At the bottom to break import cycles created by type annotations.
-from . import extensions  # noqa: E402

plugins/gtksourceview/lsp_manager/websockets/headers.py

@@ -1,579 +0,0 @@
-from __future__ import annotations
-
-import base64
-import binascii
-import ipaddress
-import re
-from typing import Callable, Sequence, TypeVar, cast
-
-from .exceptions import InvalidHeaderFormat, InvalidHeaderValue
-from .typing import (
-    ConnectionOption,
-    ExtensionHeader,
-    ExtensionName,
-    ExtensionParameter,
-    Subprotocol,
-    UpgradeProtocol,
-)
-
-
-__all__ = [
-    "build_host",
-    "parse_connection",
-    "parse_upgrade",
-    "parse_extension",
-    "build_extension",
-    "parse_subprotocol",
-    "build_subprotocol",
-    "validate_subprotocols",
-    "build_www_authenticate_basic",
-    "parse_authorization_basic",
-    "build_authorization_basic",
-]
-
-
-T = TypeVar("T")
-
-
-def build_host(host: str, port: int, secure: bool) -> str:
-    """
-    Build a ``Host`` header.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2
-    # IPv6 addresses must be enclosed in brackets.
-    try:
-        address = ipaddress.ip_address(host)
-    except ValueError:
-        # host is a hostname
-        pass
-    else:
-        # host is an IP address
-        if address.version == 6:
-            host = f"[{host}]"
-
-    if port != (443 if secure else 80):
-        host = f"{host}:{port}"
-
-    return host
-
-
-# To avoid a dependency on a parsing library, we implement manually the ABNF
-# described in https://datatracker.ietf.org/doc/html/rfc6455#section-9.1 and
-# https://datatracker.ietf.org/doc/html/rfc7230#appendix-B.
-
-
-def peek_ahead(header: str, pos: int) -> str | None:
-    """
-    Return the next character from ``header`` at the given position.
-
-    Return :obj:`None` at the end of ``header``.
-
-    We never need to peek more than one character ahead.
-
-    """
-    return None if pos == len(header) else header[pos]
-
-
-_OWS_re = re.compile(r"[\t ]*")
-
-
-def parse_OWS(header: str, pos: int) -> int:
-    """
-    Parse optional whitespace from ``header`` at the given position.
-
-    Return the new position.
-
-    The whitespace itself isn't returned because it isn't significant.
-
-    """
-    # There's always a match, possibly empty, whose content doesn't matter.
-    match = _OWS_re.match(header, pos)
-    assert match is not None
-    return match.end()
-
-
-_token_re = re.compile(r"[-!#$%&\'*+.^_`|~0-9a-zA-Z]+")
-
-
-def parse_token(header: str, pos: int, header_name: str) -> tuple[str, int]:
-    """
-    Parse a token from ``header`` at the given position.
-
-    Return the token value and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    match = _token_re.match(header, pos)
-    if match is None:
-        raise InvalidHeaderFormat(header_name, "expected token", header, pos)
-    return match.group(), match.end()
-
-
-_quoted_string_re = re.compile(
-    r'"(?:[\x09\x20-\x21\x23-\x5b\x5d-\x7e]|\\[\x09\x20-\x7e\x80-\xff])*"'
-)
-
-
-_unquote_re = re.compile(r"\\([\x09\x20-\x7e\x80-\xff])")
-
-
-def parse_quoted_string(header: str, pos: int, header_name: str) -> tuple[str, int]:
-    """
-    Parse a quoted string from ``header`` at the given position.
-
-    Return the unquoted value and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    match = _quoted_string_re.match(header, pos)
-    if match is None:
-        raise InvalidHeaderFormat(header_name, "expected quoted string", header, pos)
-    return _unquote_re.sub(r"\1", match.group()[1:-1]), match.end()
-
-
-_quotable_re = re.compile(r"[\x09\x20-\x7e\x80-\xff]*")
-
-
-_quote_re = re.compile(r"([\x22\x5c])")
-
-
-def build_quoted_string(value: str) -> str:
-    """
-    Format ``value`` as a quoted string.
-
-    This is the reverse of :func:`parse_quoted_string`.
-
-    """
-    match = _quotable_re.fullmatch(value)
-    if match is None:
-        raise ValueError("invalid characters for quoted-string encoding")
-    return '"' + _quote_re.sub(r"\\\1", value) + '"'
-
-
-def parse_list(
-    parse_item: Callable[[str, int, str], tuple[T, int]],
-    header: str,
-    pos: int,
-    header_name: str,
-) -> list[T]:
-    """
-    Parse a comma-separated list from ``header`` at the given position.
-
-    This is appropriate for parsing values with the following grammar:
-
-        1#item
-
-    ``parse_item`` parses one item.
-
-    ``header`` is assumed not to start or end with whitespace.
-
-    (This function is designed for parsing an entire header value and
-    :func:`~websockets.http.read_headers` strips whitespace from values.)
-
-    Return a list of items.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    # Per https://datatracker.ietf.org/doc/html/rfc7230#section-7, "a recipient
-    # MUST parse and ignore a reasonable number of empty list elements";
-    # hence while loops that remove extra delimiters.
-
-    # Remove extra delimiters before the first item.
-    while peek_ahead(header, pos) == ",":
-        pos = parse_OWS(header, pos + 1)
-
-    items = []
-    while True:
-        # Loop invariant: a item starts at pos in header.
-        item, pos = parse_item(header, pos, header_name)
-        items.append(item)
-        pos = parse_OWS(header, pos)
-
-        # We may have reached the end of the header.
-        if pos == len(header):
-            break
-
-        # There must be a delimiter after each element except the last one.
-        if peek_ahead(header, pos) == ",":
-            pos = parse_OWS(header, pos + 1)
-        else:
-            raise InvalidHeaderFormat(header_name, "expected comma", header, pos)
-
-        # Remove extra delimiters before the next item.
-        while peek_ahead(header, pos) == ",":
-            pos = parse_OWS(header, pos + 1)
-
-        # We may have reached the end of the header.
-        if pos == len(header):
-            break
-
-    # Since we only advance in the header by one character with peek_ahead()
-    # or with the end position of a regex match, we can't overshoot the end.
-    assert pos == len(header)
-
-    return items
-
-
-def parse_connection_option(
-    header: str, pos: int, header_name: str
-) -> tuple[ConnectionOption, int]:
-    """
-    Parse a Connection option from ``header`` at the given position.
-
-    Return the protocol value and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    item, pos = parse_token(header, pos, header_name)
-    return cast(ConnectionOption, item), pos
-
-
-def parse_connection(header: str) -> list[ConnectionOption]:
-    """
-    Parse a ``Connection`` header.
-
-    Return a list of HTTP connection options.
-
-    Args
-        header: value of the ``Connection`` header.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    return parse_list(parse_connection_option, header, 0, "Connection")
-
-
-_protocol_re = re.compile(
-    r"[-!#$%&\'*+.^_`|~0-9a-zA-Z]+(?:/[-!#$%&\'*+.^_`|~0-9a-zA-Z]+)?"
-)
-
-
-def parse_upgrade_protocol(
-    header: str, pos: int, header_name: str
-) -> tuple[UpgradeProtocol, int]:
-    """
-    Parse an Upgrade protocol from ``header`` at the given position.
-
-    Return the protocol value and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    match = _protocol_re.match(header, pos)
-    if match is None:
-        raise InvalidHeaderFormat(header_name, "expected protocol", header, pos)
-    return cast(UpgradeProtocol, match.group()), match.end()
-
-
-def parse_upgrade(header: str) -> list[UpgradeProtocol]:
-    """
-    Parse an ``Upgrade`` header.
-
-    Return a list of HTTP protocols.
-
-    Args:
-        header: Value of the ``Upgrade`` header.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    return parse_list(parse_upgrade_protocol, header, 0, "Upgrade")
-
-
-def parse_extension_item_param(
-    header: str, pos: int, header_name: str
-) -> tuple[ExtensionParameter, int]:
-    """
-    Parse a single extension parameter from ``header`` at the given position.
-
-    Return a ``(name, value)`` pair and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    # Extract parameter name.
-    name, pos = parse_token(header, pos, header_name)
-    pos = parse_OWS(header, pos)
-    # Extract parameter value, if there is one.
-    value: str | None = None
-    if peek_ahead(header, pos) == "=":
-        pos = parse_OWS(header, pos + 1)
-        if peek_ahead(header, pos) == '"':
-            pos_before = pos  # for proper error reporting below
-            value, pos = parse_quoted_string(header, pos, header_name)
-            # https://datatracker.ietf.org/doc/html/rfc6455#section-9.1 says:
-            # the value after quoted-string unescaping MUST conform to
-            # the 'token' ABNF.
-            if _token_re.fullmatch(value) is None:
-                raise InvalidHeaderFormat(
-                    header_name, "invalid quoted header content", header, pos_before
-                )
-        else:
-            value, pos = parse_token(header, pos, header_name)
-        pos = parse_OWS(header, pos)
-
-    return (name, value), pos
-
-
-def parse_extension_item(
-    header: str, pos: int, header_name: str
-) -> tuple[ExtensionHeader, int]:
-    """
-    Parse an extension definition from ``header`` at the given position.
-
-    Return an ``(extension name, parameters)`` pair, where ``parameters`` is a
-    list of ``(name, value)`` pairs, and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    # Extract extension name.
-    name, pos = parse_token(header, pos, header_name)
-    pos = parse_OWS(header, pos)
-    # Extract all parameters.
-    parameters = []
-    while peek_ahead(header, pos) == ";":
-        pos = parse_OWS(header, pos + 1)
-        parameter, pos = parse_extension_item_param(header, pos, header_name)
-        parameters.append(parameter)
-    return (cast(ExtensionName, name), parameters), pos
-
-
-def parse_extension(header: str) -> list[ExtensionHeader]:
-    """
-    Parse a ``Sec-WebSocket-Extensions`` header.
-
-    Return a list of WebSocket extensions and their parameters in this format::
-
-        [
-            (
-                'extension name',
-                [
-                    ('parameter name', 'parameter value'),
-                    ....
-                ]
-            ),
-            ...
-        ]
-
-    Parameter values are :obj:`None` when no value is provided.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    return parse_list(parse_extension_item, header, 0, "Sec-WebSocket-Extensions")
-
-
-parse_extension_list = parse_extension  # alias for backwards compatibility
-
-
-def build_extension_item(
-    name: ExtensionName, parameters: list[ExtensionParameter]
-) -> str:
-    """
-    Build an extension definition.
-
-    This is the reverse of :func:`parse_extension_item`.
-
-    """
-    return "; ".join(
-        [cast(str, name)]
-        + [
-            # Quoted strings aren't necessary because values are always tokens.
-            name if value is None else f"{name}={value}"
-            for name, value in parameters
-        ]
-    )
-
-
-def build_extension(extensions: Sequence[ExtensionHeader]) -> str:
-    """
-    Build a ``Sec-WebSocket-Extensions`` header.
-
-    This is the reverse of :func:`parse_extension`.
-
-    """
-    return ", ".join(
-        build_extension_item(name, parameters) for name, parameters in extensions
-    )
-
-
-build_extension_list = build_extension  # alias for backwards compatibility
-
-
-def parse_subprotocol_item(
-    header: str, pos: int, header_name: str
-) -> tuple[Subprotocol, int]:
-    """
-    Parse a subprotocol from ``header`` at the given position.
-
-    Return the subprotocol value and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    item, pos = parse_token(header, pos, header_name)
-    return cast(Subprotocol, item), pos
-
-
-def parse_subprotocol(header: str) -> list[Subprotocol]:
-    """
-    Parse a ``Sec-WebSocket-Protocol`` header.
-
-    Return a list of WebSocket subprotocols.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    return parse_list(parse_subprotocol_item, header, 0, "Sec-WebSocket-Protocol")
-
-
-parse_subprotocol_list = parse_subprotocol  # alias for backwards compatibility
-
-
-def build_subprotocol(subprotocols: Sequence[Subprotocol]) -> str:
-    """
-    Build a ``Sec-WebSocket-Protocol`` header.
-
-    This is the reverse of :func:`parse_subprotocol`.
-
-    """
-    return ", ".join(subprotocols)
-
-
-build_subprotocol_list = build_subprotocol  # alias for backwards compatibility
-
-
-def validate_subprotocols(subprotocols: Sequence[Subprotocol]) -> None:
-    """
-    Validate that ``subprotocols`` is suitable for :func:`build_subprotocol`.
-
-    """
-    if not isinstance(subprotocols, Sequence):
-        raise TypeError("subprotocols must be a list")
-    if isinstance(subprotocols, str):
-        raise TypeError("subprotocols must be a list, not a str")
-    for subprotocol in subprotocols:
-        if not _token_re.fullmatch(subprotocol):
-            raise ValueError(f"invalid subprotocol: {subprotocol}")
-
-
-def build_www_authenticate_basic(realm: str) -> str:
-    """
-    Build a ``WWW-Authenticate`` header for HTTP Basic Auth.
-
-    Args:
-        realm: Identifier of the protection space.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7617#section-2
-    realm = build_quoted_string(realm)
-    charset = build_quoted_string("UTF-8")
-    return f"Basic realm={realm}, charset={charset}"
-
-
-_token68_re = re.compile(r"[A-Za-z0-9-._~+/]+=*")
-
-
-def parse_token68(header: str, pos: int, header_name: str) -> tuple[str, int]:
-    """
-    Parse a token68 from ``header`` at the given position.
-
-    Return the token value and the new position.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-
-    """
-    match = _token68_re.match(header, pos)
-    if match is None:
-        raise InvalidHeaderFormat(header_name, "expected token68", header, pos)
-    return match.group(), match.end()
-
-
-def parse_end(header: str, pos: int, header_name: str) -> None:
-    """
-    Check that parsing reached the end of header.
-
-    """
-    if pos < len(header):
-        raise InvalidHeaderFormat(header_name, "trailing data", header, pos)
-
-
-def parse_authorization_basic(header: str) -> tuple[str, str]:
-    """
-    Parse an ``Authorization`` header for HTTP Basic Auth.
-
-    Return a ``(username, password)`` tuple.
-
-    Args:
-        header: Value of the ``Authorization`` header.
-
-    Raises:
-        InvalidHeaderFormat: On invalid inputs.
-        InvalidHeaderValue: On unsupported inputs.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7235#section-2.1
-    # https://datatracker.ietf.org/doc/html/rfc7617#section-2
-    scheme, pos = parse_token(header, 0, "Authorization")
-    if scheme.lower() != "basic":
-        raise InvalidHeaderValue(
-            "Authorization",
-            f"unsupported scheme: {scheme}",
-        )
-    if peek_ahead(header, pos) != " ":
-        raise InvalidHeaderFormat(
-            "Authorization", "expected space after scheme", header, pos
-        )
-    pos += 1
-    basic_credentials, pos = parse_token68(header, pos, "Authorization")
-    parse_end(header, pos, "Authorization")
-
-    try:
-        user_pass = base64.b64decode(basic_credentials.encode()).decode()
-    except binascii.Error:
-        raise InvalidHeaderValue(
-            "Authorization",
-            "expected base64-encoded credentials",
-        ) from None
-    try:
-        username, password = user_pass.split(":", 1)
-    except ValueError:
-        raise InvalidHeaderValue(
-            "Authorization",
-            "expected username:password credentials",
-        ) from None
-
-    return username, password
-
-
-def build_authorization_basic(username: str, password: str) -> str:
-    """
-    Build an ``Authorization`` header for HTTP Basic Auth.
-
-    This is the reverse of :func:`parse_authorization_basic`.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7617#section-2
-    assert ":" not in username
-    user_pass = f"{username}:{password}"
-    basic_credentials = base64.b64encode(user_pass.encode()).decode()
-    return "Basic " + basic_credentials

plugins/gtksourceview/lsp_manager/websockets/http.py

@@ -1,15 +0,0 @@
-from __future__ import annotations
-
-import warnings
-
-from .datastructures import Headers, MultipleValuesError  # noqa: F401
-from .legacy.http import read_request, read_response  # noqa: F401
-
-
-warnings.warn(  # deprecated in 9.0 - 2021-09-01
-    "Headers and MultipleValuesError were moved "
-    "from websockets.http to websockets.datastructures"
-    "and read_request and read_response were moved "
-    "from websockets.http to websockets.legacy.http",
-    DeprecationWarning,
-)

plugins/gtksourceview/lsp_manager/websockets/http11.py

@@ -1,385 +0,0 @@
-from __future__ import annotations
-
-import dataclasses
-import os
-import re
-import sys
-import warnings
-from typing import Callable, Generator
-
-from .datastructures import Headers
-from .exceptions import SecurityError
-from .version import version as websockets_version
-
-
-__all__ = ["SERVER", "USER_AGENT", "Request", "Response"]
-
-
-PYTHON_VERSION = "{}.{}".format(*sys.version_info)
-
-# User-Agent header for HTTP requests.
-USER_AGENT = os.environ.get(
-    "WEBSOCKETS_USER_AGENT",
-    f"Python/{PYTHON_VERSION} websockets/{websockets_version}",
-)
-
-# Server header for HTTP responses.
-SERVER = os.environ.get(
-    "WEBSOCKETS_SERVER",
-    f"Python/{PYTHON_VERSION} websockets/{websockets_version}",
-)
-
-# Maximum total size of headers is around 128 * 8 KiB = 1 MiB.
-MAX_NUM_HEADERS = int(os.environ.get("WEBSOCKETS_MAX_NUM_HEADERS", "128"))
-
-# Limit request line and header lines. 8KiB is the most common default
-# configuration of popular HTTP servers.
-MAX_LINE_LENGTH = int(os.environ.get("WEBSOCKETS_MAX_LINE_LENGTH", "8192"))
-
-# Support for HTTP response bodies is intended to read an error message
-# returned by a server. It isn't designed to perform large file transfers.
-MAX_BODY_SIZE = int(os.environ.get("WEBSOCKETS_MAX_BODY_SIZE", "1_048_576"))  # 1 MiB
-
-
-def d(value: bytes) -> str:
-    """
-    Decode a bytestring for interpolating into an error message.
-
-    """
-    return value.decode(errors="backslashreplace")
-
-
-# See https://datatracker.ietf.org/doc/html/rfc7230#appendix-B.
-
-# Regex for validating header names.
-
-_token_re = re.compile(rb"[-!#$%&\'*+.^_`|~0-9a-zA-Z]+")
-
-# Regex for validating header values.
-
-# We don't attempt to support obsolete line folding.
-
-# Include HTAB (\x09), SP (\x20), VCHAR (\x21-\x7e), obs-text (\x80-\xff).
-
-# The ABNF is complicated because it attempts to express that optional
-# whitespace is ignored. We strip whitespace and don't revalidate that.
-
-# See also https://www.rfc-editor.org/errata_search.php?rfc=7230&eid=4189
-
-_value_re = re.compile(rb"[\x09\x20-\x7e\x80-\xff]*")
-
-
-@dataclasses.dataclass
-class Request:
-    """
-    WebSocket handshake request.
-
-    Attributes:
-        path: Request path, including optional query.
-        headers: Request headers.
-    """
-
-    path: str
-    headers: Headers
-    # body isn't useful is the context of this library.
-
-    _exception: Exception | None = None
-
-    @property
-    def exception(self) -> Exception | None:  # pragma: no cover
-        warnings.warn(  # deprecated in 10.3 - 2022-04-17
-            "Request.exception is deprecated; "
-            "use ServerProtocol.handshake_exc instead",
-            DeprecationWarning,
-        )
-        return self._exception
-
-    @classmethod
-    def parse(
-        cls,
-        read_line: Callable[[int], Generator[None, None, bytes]],
-    ) -> Generator[None, None, Request]:
-        """
-        Parse a WebSocket handshake request.
-
-        This is a generator-based coroutine.
-
-        The request path isn't URL-decoded or validated in any way.
-
-        The request path and headers are expected to contain only ASCII
-        characters. Other characters are represented with surrogate escapes.
-
-        :meth:`parse` doesn't attempt to read the request body because
-        WebSocket handshake requests don't have one. If the request contains a
-        body, it may be read from the data stream after :meth:`parse` returns.
-
-        Args:
-            read_line: Generator-based coroutine that reads a LF-terminated
-                line or raises an exception if there isn't enough data
-
-        Raises:
-            EOFError: If the connection is closed without a full HTTP request.
-            SecurityError: If the request exceeds a security limit.
-            ValueError: If the request isn't well formatted.
-
-        """
-        # https://datatracker.ietf.org/doc/html/rfc7230#section-3.1.1
-
-        # Parsing is simple because fixed values are expected for method and
-        # version and because path isn't checked. Since WebSocket software tends
-        # to implement HTTP/1.1 strictly, there's little need for lenient parsing.
-
-        try:
-            request_line = yield from parse_line(read_line)
-        except EOFError as exc:
-            raise EOFError("connection closed while reading HTTP request line") from exc
-
-        try:
-            method, raw_path, protocol = request_line.split(b" ", 2)
-        except ValueError:  # not enough values to unpack (expected 3, got 1-2)
-            raise ValueError(f"invalid HTTP request line: {d(request_line)}") from None
-        if protocol != b"HTTP/1.1":
-            raise ValueError(
-                f"unsupported protocol; expected HTTP/1.1: {d(request_line)}"
-            )
-        if method != b"GET":
-            raise ValueError(f"unsupported HTTP method; expected GET; got {d(method)}")
-        path = raw_path.decode("ascii", "surrogateescape")
-
-        headers = yield from parse_headers(read_line)
-
-        # https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3
-
-        if "Transfer-Encoding" in headers:
-            raise NotImplementedError("transfer codings aren't supported")
-
-        if "Content-Length" in headers:
-            raise ValueError("unsupported request body")
-
-        return cls(path, headers)
-
-    def serialize(self) -> bytes:
-        """
-        Serialize a WebSocket handshake request.
-
-        """
-        # Since the request line and headers only contain ASCII characters,
-        # we can keep this simple.
-        request = f"GET {self.path} HTTP/1.1\r\n".encode()
-        request += self.headers.serialize()
-        return request
-
-
-@dataclasses.dataclass
-class Response:
-    """
-    WebSocket handshake response.
-
-    Attributes:
-        status_code: Response code.
-        reason_phrase: Response reason.
-        headers: Response headers.
-        body: Response body, if any.
-
-    """
-
-    status_code: int
-    reason_phrase: str
-    headers: Headers
-    body: bytes | None = None
-
-    _exception: Exception | None = None
-
-    @property
-    def exception(self) -> Exception | None:  # pragma: no cover
-        warnings.warn(  # deprecated in 10.3 - 2022-04-17
-            "Response.exception is deprecated; "
-            "use ClientProtocol.handshake_exc instead",
-            DeprecationWarning,
-        )
-        return self._exception
-
-    @classmethod
-    def parse(
-        cls,
-        read_line: Callable[[int], Generator[None, None, bytes]],
-        read_exact: Callable[[int], Generator[None, None, bytes]],
-        read_to_eof: Callable[[int], Generator[None, None, bytes]],
-    ) -> Generator[None, None, Response]:
-        """
-        Parse a WebSocket handshake response.
-
-        This is a generator-based coroutine.
-
-        The reason phrase and headers are expected to contain only ASCII
-        characters. Other characters are represented with surrogate escapes.
-
-        Args:
-            read_line: Generator-based coroutine that reads a LF-terminated
-                line or raises an exception if there isn't enough data.
-            read_exact: Generator-based coroutine that reads the requested
-                bytes or raises an exception if there isn't enough data.
-            read_to_eof: Generator-based coroutine that reads until the end
-                of the stream.
-
-        Raises:
-            EOFError: If the connection is closed without a full HTTP response.
-            SecurityError: If the response exceeds a security limit.
-            LookupError: If the response isn't well formatted.
-            ValueError: If the response isn't well formatted.
-
-        """
-        # https://datatracker.ietf.org/doc/html/rfc7230#section-3.1.2
-
-        try:
-            status_line = yield from parse_line(read_line)
-        except EOFError as exc:
-            raise EOFError("connection closed while reading HTTP status line") from exc
-
-        try:
-            protocol, raw_status_code, raw_reason = status_line.split(b" ", 2)
-        except ValueError:  # not enough values to unpack (expected 3, got 1-2)
-            raise ValueError(f"invalid HTTP status line: {d(status_line)}") from None
-        if protocol != b"HTTP/1.1":
-            raise ValueError(
-                f"unsupported protocol; expected HTTP/1.1: {d(status_line)}"
-            )
-        try:
-            status_code = int(raw_status_code)
-        except ValueError:  # invalid literal for int() with base 10
-            raise ValueError(
-                f"invalid status code; expected integer; got {d(raw_status_code)}"
-            ) from None
-        if not 100 <= status_code < 600:
-            raise ValueError(
-                f"invalid status code; expected 100–599; got {d(raw_status_code)}"
-            )
-        if not _value_re.fullmatch(raw_reason):
-            raise ValueError(f"invalid HTTP reason phrase: {d(raw_reason)}")
-        reason = raw_reason.decode("ascii", "surrogateescape")
-
-        headers = yield from parse_headers(read_line)
-
-        # https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3
-
-        if "Transfer-Encoding" in headers:
-            raise NotImplementedError("transfer codings aren't supported")
-
-        # Since websockets only does GET requests (no HEAD, no CONNECT), all
-        # responses except 1xx, 204, and 304 include a message body.
-        if 100 <= status_code < 200 or status_code == 204 or status_code == 304:
-            body = None
-        else:
-            content_length: int | None
-            try:
-                # MultipleValuesError is sufficiently unlikely that we don't
-                # attempt to handle it. Instead we document that its parent
-                # class, LookupError, may be raised.
-                raw_content_length = headers["Content-Length"]
-            except KeyError:
-                content_length = None
-            else:
-                content_length = int(raw_content_length)
-
-            if content_length is None:
-                try:
-                    body = yield from read_to_eof(MAX_BODY_SIZE)
-                except RuntimeError:
-                    raise SecurityError(f"body too large: over {MAX_BODY_SIZE} bytes")
-            elif content_length > MAX_BODY_SIZE:
-                raise SecurityError(f"body too large: {content_length} bytes")
-            else:
-                body = yield from read_exact(content_length)
-
-        return cls(status_code, reason, headers, body)
-
-    def serialize(self) -> bytes:
-        """
-        Serialize a WebSocket handshake response.
-
-        """
-        # Since the status line and headers only contain ASCII characters,
-        # we can keep this simple.
-        response = f"HTTP/1.1 {self.status_code} {self.reason_phrase}\r\n".encode()
-        response += self.headers.serialize()
-        if self.body is not None:
-            response += self.body
-        return response
-
-
-def parse_headers(
-    read_line: Callable[[int], Generator[None, None, bytes]],
-) -> Generator[None, None, Headers]:
-    """
-    Parse HTTP headers.
-
-    Non-ASCII characters are represented with surrogate escapes.
-
-    Args:
-        read_line: Generator-based coroutine that reads a LF-terminated line
-            or raises an exception if there isn't enough data.
-
-    Raises:
-        EOFError: If the connection is closed without complete headers.
-        SecurityError: If the request exceeds a security limit.
-        ValueError: If the request isn't well formatted.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
-
-    # We don't attempt to support obsolete line folding.
-
-    headers = Headers()
-    for _ in range(MAX_NUM_HEADERS + 1):
-        try:
-            line = yield from parse_line(read_line)
-        except EOFError as exc:
-            raise EOFError("connection closed while reading HTTP headers") from exc
-        if line == b"":
-            break
-
-        try:
-            raw_name, raw_value = line.split(b":", 1)
-        except ValueError:  # not enough values to unpack (expected 2, got 1)
-            raise ValueError(f"invalid HTTP header line: {d(line)}") from None
-        if not _token_re.fullmatch(raw_name):
-            raise ValueError(f"invalid HTTP header name: {d(raw_name)}")
-        raw_value = raw_value.strip(b" \t")
-        if not _value_re.fullmatch(raw_value):
-            raise ValueError(f"invalid HTTP header value: {d(raw_value)}")
-
-        name = raw_name.decode("ascii")  # guaranteed to be ASCII at this point
-        value = raw_value.decode("ascii", "surrogateescape")
-        headers[name] = value
-
-    else:
-        raise SecurityError("too many HTTP headers")
-
-    return headers
-
-
-def parse_line(
-    read_line: Callable[[int], Generator[None, None, bytes]],
-) -> Generator[None, None, bytes]:
-    """
-    Parse a single line.
-
-    CRLF is stripped from the return value.
-
-    Args:
-        read_line: Generator-based coroutine that reads a LF-terminated line
-            or raises an exception if there isn't enough data.
-
-    Raises:
-        EOFError: If the connection is closed without a CRLF.
-        SecurityError: If the response exceeds a security limit.
-
-    """
-    try:
-        line = yield from read_line(MAX_LINE_LENGTH)
-    except RuntimeError:
-        raise SecurityError("line too long")
-    # Not mandatory but safe - https://datatracker.ietf.org/doc/html/rfc7230#section-3.5
-    if not line.endswith(b"\r\n"):
-        raise EOFError("line without CRLF")
-    return line[:-2]

plugins/gtksourceview/lsp_manager/websockets/imports.py

@@ -1,99 +0,0 @@
-from __future__ import annotations
-
-import warnings
-from typing import Any, Iterable
-
-
-__all__ = ["lazy_import"]
-
-
-def import_name(name: str, source: str, namespace: dict[str, Any]) -> Any:
-    """
-    Import ``name`` from ``source`` in ``namespace``.
-
-    There are two use cases:
-
-    - ``name`` is an object defined in ``source``;
-    - ``name`` is a submodule of ``source``.
-
-    Neither :func:`__import__` nor :func:`~importlib.import_module` does
-    exactly this. :func:`__import__` is closer to the intended behavior.
-
-    """
-    level = 0
-    while source[level] == ".":
-        level += 1
-        assert level < len(source), "importing from parent isn't supported"
-    module = __import__(source[level:], namespace, None, [name], level)
-    return getattr(module, name)
-
-
-def lazy_import(
-    namespace: dict[str, Any],
-    aliases: dict[str, str] | None = None,
-    deprecated_aliases: dict[str, str] | None = None,
-) -> None:
-    """
-    Provide lazy, module-level imports.
-
-    Typical use::
-
-        __getattr__, __dir__ = lazy_import(
-            globals(),
-            aliases={
-                "<name>": "<source module>",
-                ...
-            },
-            deprecated_aliases={
-                ...,
-            }
-        )
-
-    This function defines ``__getattr__`` and ``__dir__`` per :pep:`562`.
-
-    """
-    if aliases is None:
-        aliases = {}
-    if deprecated_aliases is None:
-        deprecated_aliases = {}
-
-    namespace_set = set(namespace)
-    aliases_set = set(aliases)
-    deprecated_aliases_set = set(deprecated_aliases)
-
-    assert not namespace_set & aliases_set, "namespace conflict"
-    assert not namespace_set & deprecated_aliases_set, "namespace conflict"
-    assert not aliases_set & deprecated_aliases_set, "namespace conflict"
-
-    package = namespace["__name__"]
-
-    def __getattr__(name: str) -> Any:
-        assert aliases is not None  # mypy cannot figure this out
-        try:
-            source = aliases[name]
-        except KeyError:
-            pass
-        else:
-            return import_name(name, source, namespace)
-
-        assert deprecated_aliases is not None  # mypy cannot figure this out
-        try:
-            source = deprecated_aliases[name]
-        except KeyError:
-            pass
-        else:
-            warnings.warn(
-                f"{package}.{name} is deprecated",
-                DeprecationWarning,
-                stacklevel=2,
-            )
-            return import_name(name, source, namespace)
-
-        raise AttributeError(f"module {package!r} has no attribute {name!r}")
-
-    namespace["__getattr__"] = __getattr__
-
-    def __dir__() -> Iterable[str]:
-        return sorted(namespace_set | aliases_set | deprecated_aliases_set)
-
-    namespace["__dir__"] = __dir__

plugins/gtksourceview/lsp_manager/websockets/legacy/auth.py

@@ -1,190 +0,0 @@
-from __future__ import annotations
-
-import functools
-import hmac
-import http
-from typing import Any, Awaitable, Callable, Iterable, Tuple, cast
-
-from ..datastructures import Headers
-from ..exceptions import InvalidHeader
-from ..headers import build_www_authenticate_basic, parse_authorization_basic
-from .server import HTTPResponse, WebSocketServerProtocol
-
-
-__all__ = ["BasicAuthWebSocketServerProtocol", "basic_auth_protocol_factory"]
-
-# Change to tuple[str, str] when dropping Python < 3.9.
-Credentials = Tuple[str, str]
-
-
-def is_credentials(value: Any) -> bool:
-    try:
-        username, password = value
-    except (TypeError, ValueError):
-        return False
-    else:
-        return isinstance(username, str) and isinstance(password, str)
-
-
-class BasicAuthWebSocketServerProtocol(WebSocketServerProtocol):
-    """
-    WebSocket server protocol that enforces HTTP Basic Auth.
-
-    """
-
-    realm: str = ""
-    """
-    Scope of protection.
-
-    If provided, it should contain only ASCII characters because the
-    encoding of non-ASCII characters is undefined.
-    """
-
-    username: str | None = None
-    """Username of the authenticated user."""
-
-    def __init__(
-        self,
-        *args: Any,
-        realm: str | None = None,
-        check_credentials: Callable[[str, str], Awaitable[bool]] | None = None,
-        **kwargs: Any,
-    ) -> None:
-        if realm is not None:
-            self.realm = realm  # shadow class attribute
-        self._check_credentials = check_credentials
-        super().__init__(*args, **kwargs)
-
-    async def check_credentials(self, username: str, password: str) -> bool:
-        """
-        Check whether credentials are authorized.
-
-        This coroutine may be overridden in a subclass, for example to
-        authenticate against a database or an external service.
-
-        Args:
-            username: HTTP Basic Auth username.
-            password: HTTP Basic Auth password.
-
-        Returns:
-            :obj:`True` if the handshake should continue;
-            :obj:`False` if it should fail with an HTTP 401 error.
-
-        """
-        if self._check_credentials is not None:
-            return await self._check_credentials(username, password)
-
-        return False
-
-    async def process_request(
-        self,
-        path: str,
-        request_headers: Headers,
-    ) -> HTTPResponse | None:
-        """
-        Check HTTP Basic Auth and return an HTTP 401 response if needed.
-
-        """
-        try:
-            authorization = request_headers["Authorization"]
-        except KeyError:
-            return (
-                http.HTTPStatus.UNAUTHORIZED,
-                [("WWW-Authenticate", build_www_authenticate_basic(self.realm))],
-                b"Missing credentials\n",
-            )
-
-        try:
-            username, password = parse_authorization_basic(authorization)
-        except InvalidHeader:
-            return (
-                http.HTTPStatus.UNAUTHORIZED,
-                [("WWW-Authenticate", build_www_authenticate_basic(self.realm))],
-                b"Unsupported credentials\n",
-            )
-
-        if not await self.check_credentials(username, password):
-            return (
-                http.HTTPStatus.UNAUTHORIZED,
-                [("WWW-Authenticate", build_www_authenticate_basic(self.realm))],
-                b"Invalid credentials\n",
-            )
-
-        self.username = username
-
-        return await super().process_request(path, request_headers)
-
-
-def basic_auth_protocol_factory(
-    realm: str | None = None,
-    credentials: Credentials | Iterable[Credentials] | None = None,
-    check_credentials: Callable[[str, str], Awaitable[bool]] | None = None,
-    create_protocol: Callable[..., BasicAuthWebSocketServerProtocol] | None = None,
-) -> Callable[..., BasicAuthWebSocketServerProtocol]:
-    """
-    Protocol factory that enforces HTTP Basic Auth.
-
-    :func:`basic_auth_protocol_factory` is designed to integrate with
-    :func:`~websockets.legacy.server.serve` like this::
-
-        serve(
-            ...,
-            create_protocol=basic_auth_protocol_factory(
-                realm="my dev server",
-                credentials=("hello", "iloveyou"),
-            )
-        )
-
-    Args:
-        realm: Scope of protection. It should contain only ASCII characters
-            because the encoding of non-ASCII characters is undefined.
-            Refer to section 2.2 of :rfc:`7235` for details.
-        credentials: Hard coded authorized credentials. It can be a
-            ``(username, password)`` pair or a list of such pairs.
-        check_credentials: Coroutine that verifies credentials.
-            It receives ``username`` and ``password`` arguments
-            and returns a :class:`bool`. One of ``credentials`` or
-            ``check_credentials`` must be provided but not both.
-        create_protocol: Factory that creates the protocol. By default, this
-            is :class:`BasicAuthWebSocketServerProtocol`. It can be replaced
-            by a subclass.
-    Raises:
-        TypeError: If the ``credentials`` or ``check_credentials`` argument is
-            wrong.
-
-    """
-    if (credentials is None) == (check_credentials is None):
-        raise TypeError("provide either credentials or check_credentials")
-
-    if credentials is not None:
-        if is_credentials(credentials):
-            credentials_list = [cast(Credentials, credentials)]
-        elif isinstance(credentials, Iterable):
-            credentials_list = list(cast(Iterable[Credentials], credentials))
-            if not all(is_credentials(item) for item in credentials_list):
-                raise TypeError(f"invalid credentials argument: {credentials}")
-        else:
-            raise TypeError(f"invalid credentials argument: {credentials}")
-
-        credentials_dict = dict(credentials_list)
-
-        async def check_credentials(username: str, password: str) -> bool:
-            try:
-                expected_password = credentials_dict[username]
-            except KeyError:
-                return False
-            return hmac.compare_digest(expected_password, password)
-
-    if create_protocol is None:
-        create_protocol = BasicAuthWebSocketServerProtocol
-
-    # Help mypy and avoid this error: "type[BasicAuthWebSocketServerProtocol] |
-    # Callable[..., BasicAuthWebSocketServerProtocol]" not callable  [misc]
-    create_protocol = cast(
-        Callable[..., BasicAuthWebSocketServerProtocol], create_protocol
-    )
-    return functools.partial(
-        create_protocol,
-        realm=realm,
-        check_credentials=check_credentials,
-    )

plugins/gtksourceview/lsp_manager/websockets/legacy/client.py

@@ -1,707 +0,0 @@
-from __future__ import annotations
-
-import asyncio
-import functools
-import logging
-import os
-import random
-import urllib.parse
-import warnings
-from types import TracebackType
-from typing import (
-    Any,
-    AsyncIterator,
-    Callable,
-    Generator,
-    Sequence,
-    cast,
-)
-
-from ..asyncio.compatibility import asyncio_timeout
-from ..datastructures import Headers, HeadersLike
-from ..exceptions import (
-    InvalidHeader,
-    InvalidHeaderValue,
-    NegotiationError,
-    SecurityError,
-)
-from ..extensions import ClientExtensionFactory, Extension
-from ..extensions.permessage_deflate import enable_client_permessage_deflate
-from ..headers import (
-    build_authorization_basic,
-    build_extension,
-    build_host,
-    build_subprotocol,
-    parse_extension,
-    parse_subprotocol,
-    validate_subprotocols,
-)
-from ..http11 import USER_AGENT
-from ..typing import ExtensionHeader, LoggerLike, Origin, Subprotocol
-from ..uri import WebSocketURI, parse_uri
-from .exceptions import InvalidMessage, InvalidStatusCode, RedirectHandshake
-from .handshake import build_request, check_response
-from .http import read_response
-from .protocol import WebSocketCommonProtocol
-
-
-__all__ = ["connect", "unix_connect", "WebSocketClientProtocol"]
-
-
-class WebSocketClientProtocol(WebSocketCommonProtocol):
-    """
-    WebSocket client connection.
-
-    :class:`WebSocketClientProtocol` provides :meth:`recv` and :meth:`send`
-    coroutines for receiving and sending messages.
-
-    It supports asynchronous iteration to receive messages::
-
-        async for message in websocket:
-            await 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.
-
-    See :func:`connect` for the documentation of ``logger``, ``origin``,
-    ``extensions``, ``subprotocols``, ``extra_headers``, and
-    ``user_agent_header``.
-
-    See :class:`~websockets.legacy.protocol.WebSocketCommonProtocol` for the
-    documentation of ``ping_interval``, ``ping_timeout``, ``close_timeout``,
-    ``max_size``, ``max_queue``, ``read_limit``, and ``write_limit``.
-
-    """
-
-    is_client = True
-    side = "client"
-
-    def __init__(
-        self,
-        *,
-        logger: LoggerLike | None = None,
-        origin: Origin | None = None,
-        extensions: Sequence[ClientExtensionFactory] | None = None,
-        subprotocols: Sequence[Subprotocol] | None = None,
-        extra_headers: HeadersLike | None = None,
-        user_agent_header: str | None = USER_AGENT,
-        **kwargs: Any,
-    ) -> None:
-        if logger is None:
-            logger = logging.getLogger("websockets.client")
-        super().__init__(logger=logger, **kwargs)
-        self.origin = origin
-        self.available_extensions = extensions
-        self.available_subprotocols = subprotocols
-        self.extra_headers = extra_headers
-        self.user_agent_header = user_agent_header
-
-    def write_http_request(self, path: str, headers: Headers) -> None:
-        """
-        Write request line and headers to the HTTP request.
-
-        """
-        self.path = path
-        self.request_headers = headers
-
-        if self.debug:
-            self.logger.debug("> GET %s HTTP/1.1", path)
-            for key, value in headers.raw_items():
-                self.logger.debug("> %s: %s", key, value)
-
-        # Since the path and headers only contain ASCII characters,
-        # we can keep this simple.
-        request = f"GET {path} HTTP/1.1\r\n"
-        request += str(headers)
-
-        self.transport.write(request.encode())
-
-    async def read_http_response(self) -> tuple[int, Headers]:
-        """
-        Read status line and headers from the HTTP response.
-
-        If the response contains a body, it may be read from ``self.reader``
-        after this coroutine returns.
-
-        Raises:
-            InvalidMessage: If the HTTP message is malformed or isn't an
-                HTTP/1.1 GET response.
-
-        """
-        try:
-            status_code, reason, headers = await read_response(self.reader)
-        except Exception as exc:
-            raise InvalidMessage("did not receive a valid HTTP response") from exc
-
-        if self.debug:
-            self.logger.debug("< HTTP/1.1 %d %s", status_code, reason)
-            for key, value in headers.raw_items():
-                self.logger.debug("< %s: %s", key, value)
-
-        self.response_headers = headers
-
-        return status_code, self.response_headers
-
-    @staticmethod
-    def process_extensions(
-        headers: Headers,
-        available_extensions: Sequence[ClientExtensionFactory] | None,
-    ) -> list[Extension]:
-        """
-        Handle the Sec-WebSocket-Extensions HTTP response header.
-
-        Check that each extension is supported, as well as its parameters.
-
-        Return the list of accepted extensions.
-
-        Raise :exc:`~websockets.exceptions.InvalidHandshake` to abort the
-        connection.
-
-        :rfc:`6455` leaves the rules up to the specification of each
-        :extension.
-
-        To provide this level of flexibility, for each extension accepted by
-        the server, we check for a match with each extension available in the
-        client configuration. If no match is found, an exception is raised.
-
-        If several variants of the same extension are accepted by the server,
-        it may be configured several times, which won't make sense in general.
-        Extensions must implement their own requirements. For this purpose,
-        the list of previously accepted extensions is provided.
-
-        Other requirements, for example related to mandatory extensions or the
-        order of extensions, may be implemented by overriding this method.
-
-        """
-        accepted_extensions: list[Extension] = []
-
-        header_values = headers.get_all("Sec-WebSocket-Extensions")
-
-        if header_values:
-            if available_extensions is None:
-                raise NegotiationError("no extensions supported")
-
-            parsed_header_values: list[ExtensionHeader] = sum(
-                [parse_extension(header_value) for header_value in header_values], []
-            )
-
-            for name, response_params in parsed_header_values:
-                for extension_factory in available_extensions:
-                    # Skip non-matching extensions based on their name.
-                    if extension_factory.name != name:
-                        continue
-
-                    # Skip non-matching extensions based on their params.
-                    try:
-                        extension = extension_factory.process_response_params(
-                            response_params, accepted_extensions
-                        )
-                    except NegotiationError:
-                        continue
-
-                    # Add matching extension to the final list.
-                    accepted_extensions.append(extension)
-
-                    # Break out of the loop once we have a match.
-                    break
-
-                # If we didn't break from the loop, no extension in our list
-                # matched what the server sent. Fail the connection.
-                else:
-                    raise NegotiationError(
-                        f"Unsupported extension: "
-                        f"name = {name}, params = {response_params}"
-                    )
-
-        return accepted_extensions
-
-    @staticmethod
-    def process_subprotocol(
-        headers: Headers, available_subprotocols: Sequence[Subprotocol] | None
-    ) -> Subprotocol | None:
-        """
-        Handle the Sec-WebSocket-Protocol HTTP response header.
-
-        Check that it contains exactly one supported subprotocol.
-
-        Return the selected subprotocol.
-
-        """
-        subprotocol: Subprotocol | None = None
-
-        header_values = headers.get_all("Sec-WebSocket-Protocol")
-
-        if header_values:
-            if available_subprotocols is None:
-                raise NegotiationError("no subprotocols supported")
-
-            parsed_header_values: Sequence[Subprotocol] = sum(
-                [parse_subprotocol(header_value) for header_value in header_values], []
-            )
-
-            if len(parsed_header_values) > 1:
-                raise InvalidHeaderValue(
-                    "Sec-WebSocket-Protocol",
-                    f"multiple values: {', '.join(parsed_header_values)}",
-                )
-
-            subprotocol = parsed_header_values[0]
-
-            if subprotocol not in available_subprotocols:
-                raise NegotiationError(f"unsupported subprotocol: {subprotocol}")
-
-        return subprotocol
-
-    async def handshake(
-        self,
-        wsuri: WebSocketURI,
-        origin: Origin | None = None,
-        available_extensions: Sequence[ClientExtensionFactory] | None = None,
-        available_subprotocols: Sequence[Subprotocol] | None = None,
-        extra_headers: HeadersLike | None = None,
-    ) -> None:
-        """
-        Perform the client side of the opening handshake.
-
-        Args:
-            wsuri: URI of the WebSocket server.
-            origin: Value of the ``Origin`` header.
-            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.
-            extra_headers: Arbitrary HTTP headers to add to the handshake request.
-
-        Raises:
-            InvalidHandshake: If the handshake fails.
-
-        """
-        request_headers = Headers()
-
-        request_headers["Host"] = build_host(wsuri.host, wsuri.port, wsuri.secure)
-
-        if wsuri.user_info:
-            request_headers["Authorization"] = build_authorization_basic(
-                *wsuri.user_info
-            )
-
-        if origin is not None:
-            request_headers["Origin"] = origin
-
-        key = build_request(request_headers)
-
-        if available_extensions is not None:
-            extensions_header = build_extension(
-                [
-                    (extension_factory.name, extension_factory.get_request_params())
-                    for extension_factory in available_extensions
-                ]
-            )
-            request_headers["Sec-WebSocket-Extensions"] = extensions_header
-
-        if available_subprotocols is not None:
-            protocol_header = build_subprotocol(available_subprotocols)
-            request_headers["Sec-WebSocket-Protocol"] = protocol_header
-
-        if self.extra_headers is not None:
-            request_headers.update(self.extra_headers)
-
-        if self.user_agent_header:
-            request_headers.setdefault("User-Agent", self.user_agent_header)
-
-        self.write_http_request(wsuri.resource_name, request_headers)
-
-        status_code, response_headers = await self.read_http_response()
-        if status_code in (301, 302, 303, 307, 308):
-            if "Location" not in response_headers:
-                raise InvalidHeader("Location")
-            raise RedirectHandshake(response_headers["Location"])
-        elif status_code != 101:
-            raise InvalidStatusCode(status_code, response_headers)
-
-        check_response(response_headers, key)
-
-        self.extensions = self.process_extensions(
-            response_headers, available_extensions
-        )
-
-        self.subprotocol = self.process_subprotocol(
-            response_headers, available_subprotocols
-        )
-
-        self.connection_open()
-
-
-class Connect:
-    """
-    Connect to the WebSocket server at ``uri``.
-
-    Awaiting :func:`connect` yields a :class:`WebSocketClientProtocol` which
-    can then be used to send and receive messages.
-
-    :func:`connect` can be used as a asynchronous context manager::
-
-        async with connect(...) as websocket:
-            ...
-
-    The connection is closed automatically when exiting the context.
-
-    :func:`connect` can be used as an infinite asynchronous iterator to
-    reconnect automatically on errors::
-
-        async for websocket in connect(...):
-            try:
-                ...
-            except websockets.ConnectionClosed:
-                continue
-
-    The connection is closed automatically after each iteration of the loop.
-
-    If an error occurs while establishing the connection, :func:`connect`
-    retries with exponential backoff. The backoff delay starts at three
-    seconds and increases up to one minute.
-
-    If an error occurs in the body of the loop, you can handle the exception
-    and :func:`connect` will reconnect with the next iteration; or you can
-    let the exception bubble up and break out of the loop. This lets you
-    decide which errors trigger a reconnection and which errors are fatal.
-
-    Args:
-        uri: URI of the WebSocket server.
-        create_protocol: Factory for the :class:`asyncio.Protocol` managing
-            the connection. It defaults to :class:`WebSocketClientProtocol`.
-            Set it to a wrapper or a subclass to customize connection handling.
-        logger: Logger for this client.
-            It defaults to ``logging.getLogger("websockets.client")``.
-            See the :doc:`logging guide <../../topics/logging>` for details.
-        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.
-        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.
-        extra_headers: 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.
-        open_timeout: Timeout for opening the connection in seconds.
-            :obj:`None` disables the timeout.
-
-    See :class:`~websockets.legacy.protocol.WebSocketCommonProtocol` for the
-    documentation of ``ping_interval``, ``ping_timeout``, ``close_timeout``,
-    ``max_size``, ``max_queue``, ``read_limit``, and ``write_limit``.
-
-    Any other keyword arguments are passed the event loop's
-    :meth:`~asyncio.loop.create_connection` method.
-
-    For example:
-
-    * You can set ``ssl`` to a :class:`~ssl.SSLContext` to enforce TLS
-      settings. When connecting to a ``wss://`` URI, if ``ssl`` isn't
-      provided, a TLS context is created
-      with :func:`~ssl.create_default_context`.
-
-    * You can set ``host`` and ``port`` to connect to a different host and
-      port from those found in ``uri``. This only changes the destination of
-      the TCP connection. The host name from ``uri`` is still used in the TLS
-      handshake for secure connections and in the ``Host`` header.
-
-    Raises:
-        InvalidURI: If ``uri`` isn't a valid WebSocket URI.
-        OSError: If the TCP connection fails.
-        InvalidHandshake: If the opening handshake fails.
-        ~asyncio.TimeoutError: If the opening handshake times out.
-
-    """
-
-    MAX_REDIRECTS_ALLOWED = int(os.environ.get("WEBSOCKETS_MAX_REDIRECTS", "10"))
-
-    def __init__(
-        self,
-        uri: str,
-        *,
-        create_protocol: Callable[..., WebSocketClientProtocol] | None = None,
-        logger: LoggerLike | None = None,
-        compression: str | None = "deflate",
-        origin: Origin | None = None,
-        extensions: Sequence[ClientExtensionFactory] | None = None,
-        subprotocols: Sequence[Subprotocol] | None = None,
-        extra_headers: HeadersLike | None = None,
-        user_agent_header: str | None = USER_AGENT,
-        open_timeout: float | None = 10,
-        ping_interval: float | None = 20,
-        ping_timeout: float | None = 20,
-        close_timeout: float | None = None,
-        max_size: int | None = 2**20,
-        max_queue: int | None = 2**5,
-        read_limit: int = 2**16,
-        write_limit: int = 2**16,
-        **kwargs: Any,
-    ) -> None:
-        # Backwards compatibility: close_timeout used to be called timeout.
-        timeout: float | None = kwargs.pop("timeout", None)
-        if timeout is None:
-            timeout = 10
-        else:
-            warnings.warn("rename timeout to close_timeout", DeprecationWarning)
-        # If both are specified, timeout is ignored.
-        if close_timeout is None:
-            close_timeout = timeout
-
-        # Backwards compatibility: create_protocol used to be called klass.
-        klass: type[WebSocketClientProtocol] | None = kwargs.pop("klass", None)
-        if klass is None:
-            klass = WebSocketClientProtocol
-        else:
-            warnings.warn("rename klass to create_protocol", DeprecationWarning)
-        # If both are specified, klass is ignored.
-        if create_protocol is None:
-            create_protocol = klass
-
-        # Backwards compatibility: recv() used to return None on closed connections
-        legacy_recv: bool = kwargs.pop("legacy_recv", False)
-
-        # Backwards compatibility: the loop parameter used to be supported.
-        _loop: asyncio.AbstractEventLoop | None = kwargs.pop("loop", None)
-        if _loop is None:
-            loop = asyncio.get_event_loop()
-        else:
-            loop = _loop
-            warnings.warn("remove loop argument", DeprecationWarning)
-
-        wsuri = parse_uri(uri)
-        if wsuri.secure:
-            kwargs.setdefault("ssl", True)
-        elif kwargs.get("ssl") is not None:
-            raise ValueError(
-                "connect() received a ssl argument for a ws:// URI, "
-                "use a wss:// URI to enable TLS"
-            )
-
-        if compression == "deflate":
-            extensions = enable_client_permessage_deflate(extensions)
-        elif compression is not None:
-            raise ValueError(f"unsupported compression: {compression}")
-
-        if subprotocols is not None:
-            validate_subprotocols(subprotocols)
-
-        # Help mypy and avoid this error: "type[WebSocketClientProtocol] |
-        # Callable[..., WebSocketClientProtocol]" not callable  [misc]
-        create_protocol = cast(Callable[..., WebSocketClientProtocol], create_protocol)
-        factory = functools.partial(
-            create_protocol,
-            logger=logger,
-            origin=origin,
-            extensions=extensions,
-            subprotocols=subprotocols,
-            extra_headers=extra_headers,
-            user_agent_header=user_agent_header,
-            ping_interval=ping_interval,
-            ping_timeout=ping_timeout,
-            close_timeout=close_timeout,
-            max_size=max_size,
-            max_queue=max_queue,
-            read_limit=read_limit,
-            write_limit=write_limit,
-            host=wsuri.host,
-            port=wsuri.port,
-            secure=wsuri.secure,
-            legacy_recv=legacy_recv,
-            loop=_loop,
-        )
-
-        if kwargs.pop("unix", False):
-            path: str | None = kwargs.pop("path", None)
-            create_connection = functools.partial(
-                loop.create_unix_connection, factory, path, **kwargs
-            )
-        else:
-            host: str | None
-            port: int | None
-            if kwargs.get("sock") is None:
-                host, port = wsuri.host, wsuri.port
-            else:
-                # If sock is given, host and port shouldn't be specified.
-                host, port = None, None
-                if kwargs.get("ssl"):
-                    kwargs.setdefault("server_hostname", wsuri.host)
-            # If host and port are given, override values from the URI.
-            host = kwargs.pop("host", host)
-            port = kwargs.pop("port", port)
-            create_connection = functools.partial(
-                loop.create_connection, factory, host, port, **kwargs
-            )
-
-        self.open_timeout = open_timeout
-        if logger is None:
-            logger = logging.getLogger("websockets.client")
-        self.logger = logger
-
-        # This is a coroutine function.
-        self._create_connection = create_connection
-        self._uri = uri
-        self._wsuri = wsuri
-
-    def handle_redirect(self, uri: str) -> None:
-        # Update the state of this instance to connect to a new URI.
-        old_uri = self._uri
-        old_wsuri = self._wsuri
-        new_uri = urllib.parse.urljoin(old_uri, uri)
-        new_wsuri = parse_uri(new_uri)
-
-        # Forbid TLS downgrade.
-        if old_wsuri.secure and not new_wsuri.secure:
-            raise SecurityError("redirect from WSS to WS")
-
-        same_origin = (
-            old_wsuri.secure == new_wsuri.secure
-            and old_wsuri.host == new_wsuri.host
-            and old_wsuri.port == new_wsuri.port
-        )
-
-        # Rewrite secure, host, and port for cross-origin redirects.
-        # This preserves connection overrides with the host and port
-        # arguments if the redirect points to the same host and port.
-        if not same_origin:
-            factory = self._create_connection.args[0]
-            # Support TLS upgrade.
-            if not old_wsuri.secure and new_wsuri.secure:
-                factory.keywords["secure"] = True
-                self._create_connection.keywords.setdefault("ssl", True)
-            # Replace secure, host, and port arguments of the protocol factory.
-            factory = functools.partial(
-                factory.func,
-                *factory.args,
-                **dict(factory.keywords, host=new_wsuri.host, port=new_wsuri.port),
-            )
-            # Replace secure, host, and port arguments of create_connection.
-            self._create_connection = functools.partial(
-                self._create_connection.func,
-                *(factory, new_wsuri.host, new_wsuri.port),
-                **self._create_connection.keywords,
-            )
-
-        # Set the new WebSocket URI. This suffices for same-origin redirects.
-        self._uri = new_uri
-        self._wsuri = new_wsuri
-
-    # async for ... in connect(...):
-
-    BACKOFF_INITIAL = float(os.environ.get("WEBSOCKETS_BACKOFF_INITIAL_DELAY", "5"))
-    BACKOFF_MIN = float(os.environ.get("WEBSOCKETS_BACKOFF_MIN_DELAY", "3.1"))
-    BACKOFF_MAX = float(os.environ.get("WEBSOCKETS_BACKOFF_MAX_DELAY", "90.0"))
-    BACKOFF_FACTOR = float(os.environ.get("WEBSOCKETS_BACKOFF_FACTOR", "1.618"))
-
-    async def __aiter__(self) -> AsyncIterator[WebSocketClientProtocol]:
-        backoff_delay = self.BACKOFF_MIN / self.BACKOFF_FACTOR
-        while True:
-            try:
-                async with self as protocol:
-                    yield protocol
-            except Exception:
-                # Add a random initial delay between 0 and 5 seconds.
-                # See 7.2.3. Recovering from Abnormal Closure in RFC 6455.
-                if backoff_delay == self.BACKOFF_MIN:
-                    initial_delay = random.random() * self.BACKOFF_INITIAL
-                    self.logger.info(
-                        "! connect failed; reconnecting in %.1f seconds",
-                        initial_delay,
-                        exc_info=True,
-                    )
-                    await asyncio.sleep(initial_delay)
-                else:
-                    self.logger.info(
-                        "! connect failed again; retrying in %d seconds",
-                        int(backoff_delay),
-                        exc_info=True,
-                    )
-                    await asyncio.sleep(int(backoff_delay))
-                # Increase delay with truncated exponential backoff.
-                backoff_delay = backoff_delay * self.BACKOFF_FACTOR
-                backoff_delay = min(backoff_delay, self.BACKOFF_MAX)
-                continue
-            else:
-                # Connection succeeded - reset backoff delay
-                backoff_delay = self.BACKOFF_MIN
-
-    # async with connect(...) as ...:
-
-    async def __aenter__(self) -> WebSocketClientProtocol:
-        return await self
-
-    async def __aexit__(
-        self,
-        exc_type: type[BaseException] | None,
-        exc_value: BaseException | None,
-        traceback: TracebackType | None,
-    ) -> None:
-        await self.protocol.close()
-
-    # ... = await connect(...)
-
-    def __await__(self) -> Generator[Any, None, WebSocketClientProtocol]:
-        # Create a suitable iterator by calling __await__ on a coroutine.
-        return self.__await_impl__().__await__()
-
-    async def __await_impl__(self) -> WebSocketClientProtocol:
-        async with asyncio_timeout(self.open_timeout):
-            for _redirects in range(self.MAX_REDIRECTS_ALLOWED):
-                _transport, protocol = await self._create_connection()
-                try:
-                    await protocol.handshake(
-                        self._wsuri,
-                        origin=protocol.origin,
-                        available_extensions=protocol.available_extensions,
-                        available_subprotocols=protocol.available_subprotocols,
-                        extra_headers=protocol.extra_headers,
-                    )
-                except RedirectHandshake as exc:
-                    protocol.fail_connection()
-                    await protocol.wait_closed()
-                    self.handle_redirect(exc.uri)
-                # Avoid leaking a connected socket when the handshake fails.
-                except (Exception, asyncio.CancelledError):
-                    protocol.fail_connection()
-                    await protocol.wait_closed()
-                    raise
-                else:
-                    self.protocol = protocol
-                    return protocol
-            else:
-                raise SecurityError("too many redirects")
-
-    # ... = yield from connect(...) - remove when dropping Python < 3.10
-
-    __iter__ = __await__
-
-
-connect = Connect
-
-
-def unix_connect(
-    path: str | None = None,
-    uri: str = "ws://localhost/",
-    **kwargs: Any,
-) -> Connect:
-    """
-    Similar to :func:`connect`, but for connecting to a Unix socket.
-
-    This function builds upon the event loop's
-    :meth:`~asyncio.loop.create_unix_connection` method.
-
-    It is 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; the host is used in the TLS
-            handshake for secure connections and in the ``Host`` header.
-
-    """
-    return connect(uri=uri, path=path, unix=True, **kwargs)

plugins/gtksourceview/lsp_manager/websockets/legacy/exceptions.py

@@ -1,78 +0,0 @@
-import http
-
-from .. import datastructures
-from ..exceptions import (
-    InvalidHandshake,
-    ProtocolError as WebSocketProtocolError,  # noqa: F401
-)
-from ..typing import StatusLike
-
-
-class InvalidMessage(InvalidHandshake):
-    """
-    Raised when a handshake request or response is malformed.
-
-    """
-
-
-class InvalidStatusCode(InvalidHandshake):
-    """
-    Raised when a handshake response status code is invalid.
-
-    """
-
-    def __init__(self, status_code: int, headers: datastructures.Headers) -> None:
-        self.status_code = status_code
-        self.headers = headers
-
-    def __str__(self) -> str:
-        return f"server rejected WebSocket connection: HTTP {self.status_code}"
-
-
-class AbortHandshake(InvalidHandshake):
-    """
-    Raised to abort the handshake on purpose and return an HTTP response.
-
-    This exception is an implementation detail.
-
-    The public API is
-    :meth:`~websockets.legacy.server.WebSocketServerProtocol.process_request`.
-
-    Attributes:
-        status (~http.HTTPStatus): HTTP status code.
-        headers (Headers): HTTP response headers.
-        body (bytes): HTTP response body.
-    """
-
-    def __init__(
-        self,
-        status: StatusLike,
-        headers: datastructures.HeadersLike,
-        body: bytes = b"",
-    ) -> None:
-        # If a user passes an int instead of a HTTPStatus, fix it automatically.
-        self.status = http.HTTPStatus(status)
-        self.headers = datastructures.Headers(headers)
-        self.body = body
-
-    def __str__(self) -> str:
-        return (
-            f"HTTP {self.status:d}, "
-            f"{len(self.headers)} headers, "
-            f"{len(self.body)} bytes"
-        )
-
-
-class RedirectHandshake(InvalidHandshake):
-    """
-    Raised when a handshake gets redirected.
-
-    This exception is an implementation detail.
-
-    """
-
-    def __init__(self, uri: str) -> None:
-        self.uri = uri
-
-    def __str__(self) -> str:
-        return f"redirect to {self.uri}"

plugins/gtksourceview/lsp_manager/websockets/legacy/framing.py

@@ -1,224 +0,0 @@
-from __future__ import annotations
-
-import struct
-from typing import Any, Awaitable, Callable, NamedTuple, Sequence
-
-from .. import extensions, frames
-from ..exceptions import PayloadTooBig, ProtocolError
-from ..frames import BytesLike
-from ..typing import Data
-
-
-try:
-    from ..speedups import apply_mask
-except ImportError:
-    from ..utils import apply_mask
-
-
-class Frame(NamedTuple):
-    fin: bool
-    opcode: frames.Opcode
-    data: bytes
-    rsv1: bool = False
-    rsv2: bool = False
-    rsv3: bool = False
-
-    @property
-    def new_frame(self) -> frames.Frame:
-        return frames.Frame(
-            self.opcode,
-            self.data,
-            self.fin,
-            self.rsv1,
-            self.rsv2,
-            self.rsv3,
-        )
-
-    def __str__(self) -> str:
-        return str(self.new_frame)
-
-    def check(self) -> None:
-        return self.new_frame.check()
-
-    @classmethod
-    async def read(
-        cls,
-        reader: Callable[[int], Awaitable[bytes]],
-        *,
-        mask: bool,
-        max_size: int | None = None,
-        extensions: Sequence[extensions.Extension] | None = None,
-    ) -> Frame:
-        """
-        Read a WebSocket frame.
-
-        Args:
-            reader: Coroutine that reads exactly the requested number of
-                bytes, unless the end of file is reached.
-            mask: Whether the frame should be masked i.e. whether the read
-                happens on the server side.
-            max_size: Maximum payload size in bytes.
-            extensions: List of extensions, applied in reverse order.
-
-        Raises:
-            PayloadTooBig: If the frame exceeds ``max_size``.
-            ProtocolError: If the frame contains incorrect values.
-
-        """
-
-        # Read the header.
-        data = await reader(2)
-        head1, head2 = struct.unpack("!BB", data)
-
-        # While not Pythonic, this is marginally faster than calling bool().
-        fin = True if head1 & 0b10000000 else False
-        rsv1 = True if head1 & 0b01000000 else False
-        rsv2 = True if head1 & 0b00100000 else False
-        rsv3 = True if head1 & 0b00010000 else False
-
-        try:
-            opcode = frames.Opcode(head1 & 0b00001111)
-        except ValueError as exc:
-            raise ProtocolError("invalid opcode") from exc
-
-        if (True if head2 & 0b10000000 else False) != mask:
-            raise ProtocolError("incorrect masking")
-
-        length = head2 & 0b01111111
-        if length == 126:
-            data = await reader(2)
-            (length,) = struct.unpack("!H", data)
-        elif length == 127:
-            data = await reader(8)
-            (length,) = struct.unpack("!Q", data)
-        if max_size is not None and length > max_size:
-            raise PayloadTooBig(f"over size limit ({length} > {max_size} bytes)")
-        if mask:
-            mask_bits = await reader(4)
-
-        # Read the data.
-        data = await reader(length)
-        if mask:
-            data = apply_mask(data, mask_bits)
-
-        new_frame = frames.Frame(opcode, data, fin, rsv1, rsv2, rsv3)
-
-        if extensions is None:
-            extensions = []
-        for extension in reversed(extensions):
-            new_frame = extension.decode(new_frame, max_size=max_size)
-
-        new_frame.check()
-
-        return cls(
-            new_frame.fin,
-            new_frame.opcode,
-            new_frame.data,
-            new_frame.rsv1,
-            new_frame.rsv2,
-            new_frame.rsv3,
-        )
-
-    def write(
-        self,
-        write: Callable[[bytes], Any],
-        *,
-        mask: bool,
-        extensions: Sequence[extensions.Extension] | None = None,
-    ) -> None:
-        """
-        Write a WebSocket frame.
-
-        Args:
-            frame: Frame to write.
-            write: Function that writes bytes.
-            mask: Whether the frame should be masked i.e. whether the write
-                happens on the client side.
-            extensions: List of extensions, applied in order.
-
-        Raises:
-            ProtocolError: If the frame contains incorrect values.
-
-        """
-        # The frame is written in a single call to write in order to prevent
-        # TCP fragmentation. See #68 for details. This also makes it safe to
-        # send frames concurrently from multiple coroutines.
-        write(self.new_frame.serialize(mask=mask, extensions=extensions))
-
-
-def prepare_data(data: Data) -> tuple[int, bytes]:
-    """
-    Convert a string or byte-like object to an opcode and a bytes-like object.
-
-    This function is designed for data frames.
-
-    If ``data`` is a :class:`str`, return ``OP_TEXT`` and a :class:`bytes`
-    object encoding ``data`` in UTF-8.
-
-    If ``data`` is a bytes-like object, return ``OP_BINARY`` and a bytes-like
-    object.
-
-    Raises:
-        TypeError: If ``data`` doesn't have a supported type.
-
-    """
-    if isinstance(data, str):
-        return frames.Opcode.TEXT, data.encode()
-    elif isinstance(data, BytesLike):
-        return frames.Opcode.BINARY, data
-    else:
-        raise TypeError("data must be str or bytes-like")
-
-
-def prepare_ctrl(data: Data) -> bytes:
-    """
-    Convert a string or byte-like object to bytes.
-
-    This function is designed for ping and pong frames.
-
-    If ``data`` is a :class:`str`, return a :class:`bytes` object encoding
-    ``data`` in UTF-8.
-
-    If ``data`` is a bytes-like object, return a :class:`bytes` object.
-
-    Raises:
-        TypeError: If ``data`` doesn't have a supported type.
-
-    """
-    if isinstance(data, str):
-        return data.encode()
-    elif isinstance(data, BytesLike):
-        return bytes(data)
-    else:
-        raise TypeError("data must be str or bytes-like")
-
-
-# Backwards compatibility with previously documented public APIs
-encode_data = prepare_ctrl
-
-# Backwards compatibility with previously documented public APIs
-from ..frames import Close  # noqa: E402 F401, I001
-
-
-def parse_close(data: bytes) -> tuple[int, str]:
-    """
-    Parse the payload from a close frame.
-
-    Returns:
-        Close code and reason.
-
-    Raises:
-        ProtocolError: If data is ill-formed.
-        UnicodeDecodeError: If the reason isn't valid UTF-8.
-
-    """
-    close = Close.parse(data)
-    return close.code, close.reason
-
-
-def serialize_close(code: int, reason: str) -> bytes:
-    """
-    Serialize the payload for a close frame.
-
-    """
-    return Close(code, reason).serialize()

plugins/gtksourceview/lsp_manager/websockets/legacy/handshake.py

@@ -1,158 +0,0 @@
-from __future__ import annotations
-
-import base64
-import binascii
-
-from ..datastructures import Headers, MultipleValuesError
-from ..exceptions import InvalidHeader, InvalidHeaderValue, InvalidUpgrade
-from ..headers import parse_connection, parse_upgrade
-from ..typing import ConnectionOption, UpgradeProtocol
-from ..utils import accept_key as accept, generate_key
-
-
-__all__ = ["build_request", "check_request", "build_response", "check_response"]
-
-
-def build_request(headers: Headers) -> str:
-    """
-    Build a handshake request to send to the server.
-
-    Update request headers passed in argument.
-
-    Args:
-        headers: Handshake request headers.
-
-    Returns:
-        ``key`` that must be passed to :func:`check_response`.
-
-    """
-    key = generate_key()
-    headers["Upgrade"] = "websocket"
-    headers["Connection"] = "Upgrade"
-    headers["Sec-WebSocket-Key"] = key
-    headers["Sec-WebSocket-Version"] = "13"
-    return key
-
-
-def check_request(headers: Headers) -> str:
-    """
-    Check a handshake request received from the client.
-
-    This function doesn't verify that the request is an HTTP/1.1 or higher GET
-    request and doesn't perform ``Host`` and ``Origin`` checks. These controls
-    are usually performed earlier in the HTTP request handling code. They're
-    the responsibility of the caller.
-
-    Args:
-        headers: Handshake request headers.
-
-    Returns:
-        ``key`` that must be passed to :func:`build_response`.
-
-    Raises:
-        InvalidHandshake: If the handshake request is invalid.
-            Then, the server must return a 400 Bad Request error.
-
-    """
-    connection: list[ConnectionOption] = sum(
-        [parse_connection(value) for value in headers.get_all("Connection")], []
-    )
-
-    if not any(value.lower() == "upgrade" for value in connection):
-        raise InvalidUpgrade("Connection", ", ".join(connection))
-
-    upgrade: list[UpgradeProtocol] = sum(
-        [parse_upgrade(value) for value in headers.get_all("Upgrade")], []
-    )
-
-    # For compatibility with non-strict implementations, ignore case when
-    # checking the Upgrade header. The RFC always uses "websocket", except
-    # in section 11.2. (IANA registration) where it uses "WebSocket".
-    if not (len(upgrade) == 1 and upgrade[0].lower() == "websocket"):
-        raise InvalidUpgrade("Upgrade", ", ".join(upgrade))
-
-    try:
-        s_w_key = headers["Sec-WebSocket-Key"]
-    except KeyError as exc:
-        raise InvalidHeader("Sec-WebSocket-Key") from exc
-    except MultipleValuesError as exc:
-        raise InvalidHeader("Sec-WebSocket-Key", "multiple values") from exc
-
-    try:
-        raw_key = base64.b64decode(s_w_key.encode(), validate=True)
-    except binascii.Error as exc:
-        raise InvalidHeaderValue("Sec-WebSocket-Key", s_w_key) from exc
-    if len(raw_key) != 16:
-        raise InvalidHeaderValue("Sec-WebSocket-Key", s_w_key)
-
-    try:
-        s_w_version = headers["Sec-WebSocket-Version"]
-    except KeyError as exc:
-        raise InvalidHeader("Sec-WebSocket-Version") from exc
-    except MultipleValuesError as exc:
-        raise InvalidHeader("Sec-WebSocket-Version", "multiple values") from exc
-
-    if s_w_version != "13":
-        raise InvalidHeaderValue("Sec-WebSocket-Version", s_w_version)
-
-    return s_w_key
-
-
-def build_response(headers: Headers, key: str) -> None:
-    """
-    Build a handshake response to send to the client.
-
-    Update response headers passed in argument.
-
-    Args:
-        headers: Handshake response headers.
-        key: Returned by :func:`check_request`.
-
-    """
-    headers["Upgrade"] = "websocket"
-    headers["Connection"] = "Upgrade"
-    headers["Sec-WebSocket-Accept"] = accept(key)
-
-
-def check_response(headers: Headers, key: str) -> None:
-    """
-    Check a handshake response received from the server.
-
-    This function doesn't verify that the response is an HTTP/1.1 or higher
-    response with a 101 status code. These controls are the responsibility of
-    the caller.
-
-    Args:
-        headers: Handshake response headers.
-        key: Returned by :func:`build_request`.
-
-    Raises:
-        InvalidHandshake: If the handshake response is invalid.
-
-    """
-    connection: list[ConnectionOption] = sum(
-        [parse_connection(value) for value in headers.get_all("Connection")], []
-    )
-
-    if not any(value.lower() == "upgrade" for value in connection):
-        raise InvalidUpgrade("Connection", " ".join(connection))
-
-    upgrade: list[UpgradeProtocol] = sum(
-        [parse_upgrade(value) for value in headers.get_all("Upgrade")], []
-    )
-
-    # For compatibility with non-strict implementations, ignore case when
-    # checking the Upgrade header. The RFC always uses "websocket", except
-    # in section 11.2. (IANA registration) where it uses "WebSocket".
-    if not (len(upgrade) == 1 and upgrade[0].lower() == "websocket"):
-        raise InvalidUpgrade("Upgrade", ", ".join(upgrade))
-
-    try:
-        s_w_accept = headers["Sec-WebSocket-Accept"]
-    except KeyError as exc:
-        raise InvalidHeader("Sec-WebSocket-Accept") from exc
-    except MultipleValuesError as exc:
-        raise InvalidHeader("Sec-WebSocket-Accept", "multiple values") from exc
-
-    if s_w_accept != accept(key):
-        raise InvalidHeaderValue("Sec-WebSocket-Accept", s_w_accept)

plugins/gtksourceview/lsp_manager/websockets/legacy/http.py

@@ -1,201 +0,0 @@
-from __future__ import annotations
-
-import asyncio
-import os
-import re
-
-from ..datastructures import Headers
-from ..exceptions import SecurityError
-
-
-__all__ = ["read_request", "read_response"]
-
-MAX_NUM_HEADERS = int(os.environ.get("WEBSOCKETS_MAX_NUM_HEADERS", "128"))
-MAX_LINE_LENGTH = int(os.environ.get("WEBSOCKETS_MAX_LINE_LENGTH", "8192"))
-
-
-def d(value: bytes) -> str:
-    """
-    Decode a bytestring for interpolating into an error message.
-
-    """
-    return value.decode(errors="backslashreplace")
-
-
-# See https://datatracker.ietf.org/doc/html/rfc7230#appendix-B.
-
-# Regex for validating header names.
-
-_token_re = re.compile(rb"[-!#$%&\'*+.^_`|~0-9a-zA-Z]+")
-
-# Regex for validating header values.
-
-# We don't attempt to support obsolete line folding.
-
-# Include HTAB (\x09), SP (\x20), VCHAR (\x21-\x7e), obs-text (\x80-\xff).
-
-# The ABNF is complicated because it attempts to express that optional
-# whitespace is ignored. We strip whitespace and don't revalidate that.
-
-# See also https://www.rfc-editor.org/errata_search.php?rfc=7230&eid=4189
-
-_value_re = re.compile(rb"[\x09\x20-\x7e\x80-\xff]*")
-
-
-async def read_request(stream: asyncio.StreamReader) -> tuple[str, Headers]:
-    """
-    Read an HTTP/1.1 GET request and return ``(path, headers)``.
-
-    ``path`` isn't URL-decoded or validated in any way.
-
-    ``path`` and ``headers`` are expected to contain only ASCII characters.
-    Other characters are represented with surrogate escapes.
-
-    :func:`read_request` doesn't attempt to read the request body because
-    WebSocket handshake requests don't have one. If the request contains a
-    body, it may be read from ``stream`` after this coroutine returns.
-
-    Args:
-        stream: Input to read the request from.
-
-    Raises:
-        EOFError: If the connection is closed without a full HTTP request.
-        SecurityError: If the request exceeds a security limit.
-        ValueError: If the request isn't well formatted.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7230#section-3.1.1
-
-    # Parsing is simple because fixed values are expected for method and
-    # version and because path isn't checked. Since WebSocket software tends
-    # to implement HTTP/1.1 strictly, there's little need for lenient parsing.
-
-    try:
-        request_line = await read_line(stream)
-    except EOFError as exc:
-        raise EOFError("connection closed while reading HTTP request line") from exc
-
-    try:
-        method, raw_path, version = request_line.split(b" ", 2)
-    except ValueError:  # not enough values to unpack (expected 3, got 1-2)
-        raise ValueError(f"invalid HTTP request line: {d(request_line)}") from None
-
-    if method != b"GET":
-        raise ValueError(f"unsupported HTTP method: {d(method)}")
-    if version != b"HTTP/1.1":
-        raise ValueError(f"unsupported HTTP version: {d(version)}")
-    path = raw_path.decode("ascii", "surrogateescape")
-
-    headers = await read_headers(stream)
-
-    return path, headers
-
-
-async def read_response(stream: asyncio.StreamReader) -> tuple[int, str, Headers]:
-    """
-    Read an HTTP/1.1 response and return ``(status_code, reason, headers)``.
-
-    ``reason`` and ``headers`` are expected to contain only ASCII characters.
-    Other characters are represented with surrogate escapes.
-
-    :func:`read_request` doesn't attempt to read the response body because
-    WebSocket handshake responses don't have one. If the response contains a
-    body, it may be read from ``stream`` after this coroutine returns.
-
-    Args:
-        stream: Input to read the response from.
-
-    Raises:
-        EOFError: If the connection is closed without a full HTTP response.
-        SecurityError: If the response exceeds a security limit.
-        ValueError: If the response isn't well formatted.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7230#section-3.1.2
-
-    # As in read_request, parsing is simple because a fixed value is expected
-    # for version, status_code is a 3-digit number, and reason can be ignored.
-
-    try:
-        status_line = await read_line(stream)
-    except EOFError as exc:
-        raise EOFError("connection closed while reading HTTP status line") from exc
-
-    try:
-        version, raw_status_code, raw_reason = status_line.split(b" ", 2)
-    except ValueError:  # not enough values to unpack (expected 3, got 1-2)
-        raise ValueError(f"invalid HTTP status line: {d(status_line)}") from None
-
-    if version != b"HTTP/1.1":
-        raise ValueError(f"unsupported HTTP version: {d(version)}")
-    try:
-        status_code = int(raw_status_code)
-    except ValueError:  # invalid literal for int() with base 10
-        raise ValueError(f"invalid HTTP status code: {d(raw_status_code)}") from None
-    if not 100 <= status_code < 1000:
-        raise ValueError(f"unsupported HTTP status code: {d(raw_status_code)}")
-    if not _value_re.fullmatch(raw_reason):
-        raise ValueError(f"invalid HTTP reason phrase: {d(raw_reason)}")
-    reason = raw_reason.decode()
-
-    headers = await read_headers(stream)
-
-    return status_code, reason, headers
-
-
-async def read_headers(stream: asyncio.StreamReader) -> Headers:
-    """
-    Read HTTP headers from ``stream``.
-
-    Non-ASCII characters are represented with surrogate escapes.
-
-    """
-    # https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
-
-    # We don't attempt to support obsolete line folding.
-
-    headers = Headers()
-    for _ in range(MAX_NUM_HEADERS + 1):
-        try:
-            line = await read_line(stream)
-        except EOFError as exc:
-            raise EOFError("connection closed while reading HTTP headers") from exc
-        if line == b"":
-            break
-
-        try:
-            raw_name, raw_value = line.split(b":", 1)
-        except ValueError:  # not enough values to unpack (expected 2, got 1)
-            raise ValueError(f"invalid HTTP header line: {d(line)}") from None
-        if not _token_re.fullmatch(raw_name):
-            raise ValueError(f"invalid HTTP header name: {d(raw_name)}")
-        raw_value = raw_value.strip(b" \t")
-        if not _value_re.fullmatch(raw_value):
-            raise ValueError(f"invalid HTTP header value: {d(raw_value)}")
-
-        name = raw_name.decode("ascii")  # guaranteed to be ASCII at this point
-        value = raw_value.decode("ascii", "surrogateescape")
-        headers[name] = value
-
-    else:
-        raise SecurityError("too many HTTP headers")
-
-    return headers
-
-
-async def read_line(stream: asyncio.StreamReader) -> bytes:
-    """
-    Read a single line from ``stream``.
-
-    CRLF is stripped from the return value.
-
-    """
-    # Security: this is bounded by the StreamReader's limit (default = 32 KiB).
-    line = await stream.readline()
-    # Security: this guarantees header values are small (hard-coded = 8 KiB)
-    if len(line) > MAX_LINE_LENGTH:
-        raise SecurityError("line too long")
-    # Not mandatory but safe - https://datatracker.ietf.org/doc/html/rfc7230#section-3.5
-    if not line.endswith(b"\r\n"):
-        raise EOFError("line without CRLF")
-    return line[:-2]

plugins/gtksourceview/lsp_manager/websockets/protocol.py

@@ -1,732 +0,0 @@
-from __future__ import annotations
-
-import enum
-import logging
-import uuid
-from typing import Generator, Union
-
-from .exceptions import (
-    ConnectionClosed,
-    ConnectionClosedError,
-    ConnectionClosedOK,
-    InvalidState,
-    PayloadTooBig,
-    ProtocolError,
-)
-from .extensions import Extension
-from .frames import (
-    OK_CLOSE_CODES,
-    OP_BINARY,
-    OP_CLOSE,
-    OP_CONT,
-    OP_PING,
-    OP_PONG,
-    OP_TEXT,
-    Close,
-    CloseCode,
-    Frame,
-)
-from .http11 import Request, Response
-from .streams import StreamReader
-from .typing import LoggerLike, Origin, Subprotocol
-
-
-__all__ = [
-    "Protocol",
-    "Side",
-    "State",
-    "SEND_EOF",
-]
-
-# Change to Request | Response | Frame when dropping Python < 3.10.
-Event = Union[Request, Response, Frame]
-"""Events that :meth:`~Protocol.events_received` may return."""
-
-
-class Side(enum.IntEnum):
-    """A WebSocket connection is either a server or a client."""
-
-    SERVER, CLIENT = range(2)
-
-
-SERVER = Side.SERVER
-CLIENT = Side.CLIENT
-
-
-class State(enum.IntEnum):
-    """A WebSocket connection is in one of these four states."""
-
-    CONNECTING, OPEN, CLOSING, CLOSED = range(4)
-
-
-CONNECTING = State.CONNECTING
-OPEN = State.OPEN
-CLOSING = State.CLOSING
-CLOSED = State.CLOSED
-
-
-SEND_EOF = b""
-"""Sentinel signaling that the TCP connection must be half-closed."""
-
-
-class Protocol:
-    """
-    Sans-I/O implementation of a WebSocket connection.
-
-    Args:
-        side: :attr:`~Side.CLIENT` or :attr:`~Side.SERVER`.
-        state: Initial state of the WebSocket connection.
-        max_size: Maximum size of incoming messages in bytes;
-            :obj:`None` disables the limit.
-        logger: Logger for this connection; depending on ``side``,
-            defaults to ``logging.getLogger("websockets.client")``
-            or ``logging.getLogger("websockets.server")``;
-            see the :doc:`logging guide <../../topics/logging>` for details.
-
-    """
-
-    def __init__(
-        self,
-        side: Side,
-        *,
-        state: State = OPEN,
-        max_size: int | None = 2**20,
-        logger: LoggerLike | None = None,
-    ) -> None:
-        # Unique identifier. For logs.
-        self.id: uuid.UUID = uuid.uuid4()
-        """Unique identifier of the connection. Useful in logs."""
-
-        # Logger or LoggerAdapter for this connection.
-        if logger is None:
-            logger = logging.getLogger(f"websockets.{side.name.lower()}")
-        self.logger: LoggerLike = logger
-        """Logger for this connection."""
-
-        # Track if DEBUG is enabled. Shortcut logging calls if it isn't.
-        self.debug = logger.isEnabledFor(logging.DEBUG)
-
-        # Connection side. CLIENT or SERVER.
-        self.side = side
-
-        # Connection state. Initially OPEN because subclasses handle CONNECTING.
-        self.state = state
-
-        # Maximum size of incoming messages in bytes.
-        self.max_size = max_size
-
-        # Current size of incoming message in bytes. Only set while reading a
-        # fragmented message i.e. a data frames with the FIN bit not set.
-        self.cur_size: int | None = None
-
-        # True while sending a fragmented message i.e. a data frames with the
-        # FIN bit not set.
-        self.expect_continuation_frame = False
-
-        # WebSocket protocol parameters.
-        self.origin: Origin | None = None
-        self.extensions: list[Extension] = []
-        self.subprotocol: Subprotocol | None = None
-
-        # Close code and reason, set when a close frame is sent or received.
-        self.close_rcvd: Close | None = None
-        self.close_sent: Close | None = None
-        self.close_rcvd_then_sent: bool | None = None
-
-        # Track if an exception happened during the handshake.
-        self.handshake_exc: Exception | None = None
-        """
-        Exception to raise if the opening handshake failed.
-
-        :obj:`None` if the opening handshake succeeded.
-
-        """
-
-        # Track if send_eof() was called.
-        self.eof_sent = False
-
-        # Parser state.
-        self.reader = StreamReader()
-        self.events: list[Event] = []
-        self.writes: list[bytes] = []
-        self.parser = self.parse()
-        next(self.parser)  # start coroutine
-        self.parser_exc: Exception | None = None
-
-    @property
-    def state(self) -> State:
-        """
-        State of the WebSocket connection.
-
-        Defined in 4.1, 4.2, 7.1.3, and 7.1.4 of :rfc:`6455`.
-
-        """
-        return self._state
-
-    @state.setter
-    def state(self, state: State) -> None:
-        if self.debug:
-            self.logger.debug("= connection is %s", state.name)
-        self._state = state
-
-    @property
-    def close_code(self) -> int | None:
-        """
-        `WebSocket close code`_.
-
-        .. _WebSocket close code:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-7.1.5
-
-        :obj:`None` if the connection isn't closed yet.
-
-        """
-        if self.state is not CLOSED:
-            return None
-        elif self.close_rcvd is None:
-            return CloseCode.ABNORMAL_CLOSURE
-        else:
-            return self.close_rcvd.code
-
-    @property
-    def close_reason(self) -> str | None:
-        """
-        `WebSocket close reason`_.
-
-        .. _WebSocket close reason:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-7.1.6
-
-        :obj:`None` if the connection isn't closed yet.
-
-        """
-        if self.state is not CLOSED:
-            return None
-        elif self.close_rcvd is None:
-            return ""
-        else:
-            return self.close_rcvd.reason
-
-    @property
-    def close_exc(self) -> ConnectionClosed:
-        """
-        Exception to raise when trying to interact with a closed connection.
-
-        Don't raise this exception while the connection :attr:`state`
-        is :attr:`~websockets.protocol.State.CLOSING`; wait until
-        it's :attr:`~websockets.protocol.State.CLOSED`.
-
-        Indeed, the exception includes the close code and reason, which are
-        known only once the connection is closed.
-
-        Raises:
-            AssertionError: If the connection isn't closed yet.
-
-        """
-        assert self.state is CLOSED, "connection isn't closed yet"
-        exc_type: type[ConnectionClosed]
-        if (
-            self.close_rcvd is not None
-            and self.close_sent is not None
-            and self.close_rcvd.code in OK_CLOSE_CODES
-            and self.close_sent.code in OK_CLOSE_CODES
-        ):
-            exc_type = ConnectionClosedOK
-        else:
-            exc_type = ConnectionClosedError
-        exc: ConnectionClosed = exc_type(
-            self.close_rcvd,
-            self.close_sent,
-            self.close_rcvd_then_sent,
-        )
-        # Chain to the exception raised in the parser, if any.
-        exc.__cause__ = self.parser_exc
-        return exc
-
-    # Public methods for receiving data.
-
-    def receive_data(self, data: bytes) -> None:
-        """
-        Receive data from the network.
-
-        After calling this method:
-
-        - You must call :meth:`data_to_send` and send this data to the network.
-        - You should call :meth:`events_received` and process resulting events.
-
-        Raises:
-            EOFError: If :meth:`receive_eof` was called earlier.
-
-        """
-        self.reader.feed_data(data)
-        next(self.parser)
-
-    def receive_eof(self) -> None:
-        """
-        Receive the end of the data stream from the network.
-
-        After calling this method:
-
-        - You must call :meth:`data_to_send` and send this data to the network;
-          it will return ``[b""]``, signaling the end of the stream, or ``[]``.
-        - You aren't expected to call :meth:`events_received`; it won't return
-          any new events.
-
-        :meth:`receive_eof` is idempotent.
-
-        """
-        if self.reader.eof:
-            return
-        self.reader.feed_eof()
-        next(self.parser)
-
-    # Public methods for sending events.
-
-    def send_continuation(self, data: bytes, fin: bool) -> None:
-        """
-        Send a `Continuation frame`_.
-
-        .. _Continuation frame:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-        Parameters:
-            data: payload containing the same kind of data
-                as the initial frame.
-            fin: FIN bit; set it to :obj:`True` if this is the last frame
-                of a fragmented message and to :obj:`False` otherwise.
-
-        Raises:
-            ProtocolError: If a fragmented message isn't in progress.
-
-        """
-        if not self.expect_continuation_frame:
-            raise ProtocolError("unexpected continuation frame")
-        if self._state is not OPEN:
-            raise InvalidState(f"connection is {self.state.name.lower()}")
-        self.expect_continuation_frame = not fin
-        self.send_frame(Frame(OP_CONT, data, fin))
-
-    def send_text(self, data: bytes, fin: bool = True) -> None:
-        """
-        Send a `Text frame`_.
-
-        .. _Text frame:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-        Parameters:
-            data: payload containing text encoded with UTF-8.
-            fin: FIN bit; set it to :obj:`False` if this is the first frame of
-                a fragmented message.
-
-        Raises:
-            ProtocolError: If a fragmented message is in progress.
-
-        """
-        if self.expect_continuation_frame:
-            raise ProtocolError("expected a continuation frame")
-        if self._state is not OPEN:
-            raise InvalidState(f"connection is {self.state.name.lower()}")
-        self.expect_continuation_frame = not fin
-        self.send_frame(Frame(OP_TEXT, data, fin))
-
-    def send_binary(self, data: bytes, fin: bool = True) -> None:
-        """
-        Send a `Binary frame`_.
-
-        .. _Binary frame:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-        Parameters:
-            data: payload containing arbitrary binary data.
-            fin: FIN bit; set it to :obj:`False` if this is the first frame of
-                a fragmented message.
-
-        Raises:
-            ProtocolError: If a fragmented message is in progress.
-
-        """
-        if self.expect_continuation_frame:
-            raise ProtocolError("expected a continuation frame")
-        if self._state is not OPEN:
-            raise InvalidState(f"connection is {self.state.name.lower()}")
-        self.expect_continuation_frame = not fin
-        self.send_frame(Frame(OP_BINARY, data, fin))
-
-    def send_close(self, code: int | None = None, reason: str = "") -> None:
-        """
-        Send a `Close frame`_.
-
-        .. _Close frame:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.1
-
-        Parameters:
-            code: close code.
-            reason: close reason.
-
-        Raises:
-            ProtocolError: If the code isn't valid or if a reason is provided
-                without a code.
-
-        """
-        # While RFC 6455 doesn't rule out sending more than one close Frame,
-        # websockets is conservative in what it sends and doesn't allow that.
-        if self._state is not OPEN:
-            raise InvalidState(f"connection is {self.state.name.lower()}")
-        if code is None:
-            if reason != "":
-                raise ProtocolError("cannot send a reason without a code")
-            close = Close(CloseCode.NO_STATUS_RCVD, "")
-            data = b""
-        else:
-            close = Close(code, reason)
-            data = close.serialize()
-        # 7.1.3. The WebSocket Closing Handshake is Started
-        self.send_frame(Frame(OP_CLOSE, data))
-        # Since the state is OPEN, no close frame was received yet.
-        # As a consequence, self.close_rcvd_then_sent remains None.
-        assert self.close_rcvd is None
-        self.close_sent = close
-        self.state = CLOSING
-
-    def send_ping(self, data: bytes) -> None:
-        """
-        Send a `Ping frame`_.
-
-        .. _Ping frame:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.2
-
-        Parameters:
-            data: payload containing arbitrary binary data.
-
-        """
-        # RFC 6455 allows control frames after starting the closing handshake.
-        if self._state is not OPEN and self._state is not CLOSING:
-            raise InvalidState(f"connection is {self.state.name.lower()}")
-        self.send_frame(Frame(OP_PING, data))
-
-    def send_pong(self, data: bytes) -> None:
-        """
-        Send a `Pong frame`_.
-
-        .. _Pong frame:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.3
-
-        Parameters:
-            data: payload containing arbitrary binary data.
-
-        """
-        # RFC 6455 allows control frames after starting the closing handshake.
-        if self._state is not OPEN and self._state is not CLOSING:
-            raise InvalidState(f"connection is {self.state.name.lower()}")
-        self.send_frame(Frame(OP_PONG, data))
-
-    def fail(self, code: int, reason: str = "") -> None:
-        """
-        `Fail the WebSocket connection`_.
-
-        .. _Fail the WebSocket connection:
-            https://datatracker.ietf.org/doc/html/rfc6455#section-7.1.7
-
-        Parameters:
-            code: close code
-            reason: close reason
-
-        Raises:
-            ProtocolError: If the code isn't valid.
-        """
-        # 7.1.7. Fail the WebSocket Connection
-
-        # Send a close frame when the state is OPEN (a close frame was already
-        # sent if it's CLOSING), except when failing the connection because
-        # of an error reading from or writing to the network.
-        if self.state is OPEN:
-            if code != CloseCode.ABNORMAL_CLOSURE:
-                close = Close(code, reason)
-                data = close.serialize()
-                self.send_frame(Frame(OP_CLOSE, data))
-                self.close_sent = close
-                # If recv_messages() raised an exception upon receiving a close
-                # frame but before echoing it, then close_rcvd is not None even
-                # though the state is OPEN. This happens when the connection is
-                # closed while receiving a fragmented message.
-                if self.close_rcvd is not None:
-                    self.close_rcvd_then_sent = True
-                self.state = CLOSING
-
-        # When failing the connection, a server closes the TCP connection
-        # without waiting for the client to complete the handshake, while a
-        # client waits for the server to close the TCP connection, possibly
-        # after sending a close frame that the client will ignore.
-        if self.side is SERVER and not self.eof_sent:
-            self.send_eof()
-
-        # 7.1.7. Fail the WebSocket Connection "An endpoint MUST NOT continue
-        # to attempt to process data(including a responding Close frame) from
-        # the remote endpoint after being instructed to _Fail the WebSocket
-        # Connection_."
-        self.parser = self.discard()
-        next(self.parser)  # start coroutine
-
-    # Public method for getting incoming events after receiving data.
-
-    def events_received(self) -> list[Event]:
-        """
-        Fetch events generated from data received from the network.
-
-        Call this method immediately after any of the ``receive_*()`` methods.
-
-        Process resulting events, likely by passing them to the application.
-
-        Returns:
-            Events read from the connection.
-        """
-        events, self.events = self.events, []
-        return events
-
-    # Public method for getting outgoing data after receiving data or sending events.
-
-    def data_to_send(self) -> list[bytes]:
-        """
-        Obtain data to send to the network.
-
-        Call this method immediately after any of the ``receive_*()``,
-        ``send_*()``, or :meth:`fail` methods.
-
-        Write resulting data to the connection.
-
-        The empty bytestring :data:`~websockets.protocol.SEND_EOF` signals
-        the end of the data stream. When you receive it, half-close the TCP
-        connection.
-
-        Returns:
-            Data to write to the connection.
-
-        """
-        writes, self.writes = self.writes, []
-        return writes
-
-    def close_expected(self) -> bool:
-        """
-        Tell if the TCP connection is expected to close soon.
-
-        Call this method immediately after any of the ``receive_*()``,
-        ``send_close()``, or :meth:`fail` methods.
-
-        If it returns :obj:`True`, schedule closing the TCP connection after a
-        short timeout if the other side hasn't already closed it.
-
-        Returns:
-            Whether the TCP connection is expected to close soon.
-
-        """
-        # We expect a TCP close if and only if we sent a close frame:
-        # * Normal closure: once we send a close frame, we expect a TCP close:
-        #   server waits for client to complete the TCP closing handshake;
-        #   client waits for server to initiate the TCP closing handshake.
-        # * Abnormal closure: we always send a close frame and the same logic
-        #   applies, except on EOFError where we don't send a close frame
-        #   because we already received the TCP close, so we don't expect it.
-        # We already got a TCP Close if and only if the state is CLOSED.
-        return self.state is CLOSING or self.handshake_exc is not None
-
-    # Private methods for receiving data.
-
-    def parse(self) -> Generator[None, None, None]:
-        """
-        Parse incoming data into frames.
-
-        :meth:`receive_data` and :meth:`receive_eof` run this generator
-        coroutine until it needs more data or reaches EOF.
-
-        :meth:`parse` never raises an exception. Instead, it sets the
-        :attr:`parser_exc` and yields control.
-
-        """
-        try:
-            while True:
-                if (yield from self.reader.at_eof()):
-                    if self.debug:
-                        self.logger.debug("< EOF")
-                    # If the WebSocket connection is closed cleanly, with a
-                    # closing handhshake, recv_frame() substitutes parse()
-                    # with discard(). This branch is reached only when the
-                    # connection isn't closed cleanly.
-                    raise EOFError("unexpected end of stream")
-
-                if self.max_size is None:
-                    max_size = None
-                elif self.cur_size is None:
-                    max_size = self.max_size
-                else:
-                    max_size = self.max_size - self.cur_size
-
-                # During a normal closure, execution ends here on the next
-                # iteration of the loop after receiving a close frame. At
-                # this point, recv_frame() replaced parse() by discard().
-                frame = yield from Frame.parse(
-                    self.reader.read_exact,
-                    mask=self.side is SERVER,
-                    max_size=max_size,
-                    extensions=self.extensions,
-                )
-
-                if self.debug:
-                    self.logger.debug("< %s", frame)
-
-                self.recv_frame(frame)
-
-        except ProtocolError as exc:
-            self.fail(CloseCode.PROTOCOL_ERROR, str(exc))
-            self.parser_exc = exc
-
-        except EOFError as exc:
-            self.fail(CloseCode.ABNORMAL_CLOSURE, str(exc))
-            self.parser_exc = exc
-
-        except UnicodeDecodeError as exc:
-            self.fail(CloseCode.INVALID_DATA, f"{exc.reason} at position {exc.start}")
-            self.parser_exc = exc
-
-        except PayloadTooBig as exc:
-            self.fail(CloseCode.MESSAGE_TOO_BIG, str(exc))
-            self.parser_exc = exc
-
-        except Exception as exc:
-            self.logger.error("parser failed", exc_info=True)
-            # Don't include exception details, which may be security-sensitive.
-            self.fail(CloseCode.INTERNAL_ERROR)
-            self.parser_exc = exc
-
-        # During an abnormal closure, execution ends here after catching an
-        # exception. At this point, fail() replaced parse() by discard().
-        yield
-        raise AssertionError("parse() shouldn't step after error")
-
-    def discard(self) -> Generator[None, None, None]:
-        """
-        Discard incoming data.
-
-        This coroutine replaces :meth:`parse`:
-
-        - after receiving a close frame, during a normal closure (1.4);
-        - after sending a close frame, during an abnormal closure (7.1.7).
-
-        """
-        # After the opening handshake completes, the server closes the TCP
-        # connection in the same circumstances where discard() replaces parse().
-        # The client closes it when it receives EOF from the server or times
-        # out. (The latter case cannot be handled in this Sans-I/O layer.)
-        assert (self.state == CONNECTING or self.side is SERVER) == (self.eof_sent)
-        while not (yield from self.reader.at_eof()):
-            self.reader.discard()
-        if self.debug:
-            self.logger.debug("< EOF")
-        # A server closes the TCP connection immediately, while a client
-        # waits for the server to close the TCP connection.
-        if self.state != CONNECTING and self.side is CLIENT:
-            self.send_eof()
-        self.state = CLOSED
-        # If discard() completes normally, execution ends here.
-        yield
-        # Once the reader reaches EOF, its feed_data/eof() methods raise an
-        # error, so our receive_data/eof() methods don't step the generator.
-        raise AssertionError("discard() shouldn't step after EOF")
-
-    def recv_frame(self, frame: Frame) -> None:
-        """
-        Process an incoming frame.
-
-        """
-        if frame.opcode is OP_TEXT or frame.opcode is OP_BINARY:
-            if self.cur_size is not None:
-                raise ProtocolError("expected a continuation frame")
-            if frame.fin:
-                self.cur_size = None
-            else:
-                self.cur_size = len(frame.data)
-
-        elif frame.opcode is OP_CONT:
-            if self.cur_size is None:
-                raise ProtocolError("unexpected continuation frame")
-            if frame.fin:
-                self.cur_size = None
-            else:
-                self.cur_size += len(frame.data)
-
-        elif frame.opcode is OP_PING:
-            # 5.5.2. Ping: "Upon receipt of a Ping frame, an endpoint MUST
-            # send a Pong frame in response"
-            pong_frame = Frame(OP_PONG, frame.data)
-            self.send_frame(pong_frame)
-
-        elif frame.opcode is OP_PONG:
-            # 5.5.3 Pong: "A response to an unsolicited Pong frame is not
-            # expected."
-            pass
-
-        elif frame.opcode is OP_CLOSE:
-            # 7.1.5.  The WebSocket Connection Close Code
-            # 7.1.6.  The WebSocket Connection Close Reason
-            self.close_rcvd = Close.parse(frame.data)
-            if self.state is CLOSING:
-                assert self.close_sent is not None
-                self.close_rcvd_then_sent = False
-
-            if self.cur_size is not None:
-                raise ProtocolError("incomplete fragmented message")
-
-            # 5.5.1 Close: "If an endpoint receives a Close frame and did
-            # not previously send a Close frame, the endpoint MUST send a
-            # Close frame in response. (When sending a Close frame in
-            # response, the endpoint typically echos the status code it
-            # received.)"
-
-            if self.state is OPEN:
-                # Echo the original data instead of re-serializing it with
-                # Close.serialize() because that fails when the close frame
-                # is empty and Close.parse() synthesizes a 1005 close code.
-                # The rest is identical to send_close().
-                self.send_frame(Frame(OP_CLOSE, frame.data))
-                self.close_sent = self.close_rcvd
-                self.close_rcvd_then_sent = True
-                self.state = CLOSING
-
-            # 7.1.2. Start the WebSocket Closing Handshake: "Once an
-            # endpoint has both sent and received a Close control frame,
-            # that endpoint SHOULD _Close the WebSocket Connection_"
-
-            # A server closes the TCP connection immediately, while a client
-            # waits for the server to close the TCP connection.
-            if self.side is SERVER:
-                self.send_eof()
-
-            # 1.4. Closing Handshake: "after receiving a control frame
-            # indicating the connection should be closed, a peer discards
-            # any further data received."
-            # RFC 6455 allows reading Ping and Pong frames after a Close frame.
-            # However, that doesn't seem useful; websockets doesn't support it.
-            self.parser = self.discard()
-            next(self.parser)  # start coroutine
-
-        else:
-            # This can't happen because Frame.parse() validates opcodes.
-            raise AssertionError(f"unexpected opcode: {frame.opcode:02x}")
-
-        self.events.append(frame)
-
-    # Private methods for sending events.
-
-    def send_frame(self, frame: Frame) -> None:
-        if self.debug:
-            self.logger.debug("> %s", frame)
-        self.writes.append(
-            frame.serialize(
-                mask=self.side is CLIENT,
-                extensions=self.extensions,
-            )
-        )
-
-    def send_eof(self) -> None:
-        assert not self.eof_sent
-        self.eof_sent = True
-        if self.debug:
-            self.logger.debug("> EOF")
-        self.writes.append(SEND_EOF)

plugins/gtksourceview/lsp_manager/websockets/server.py

@@ -1,587 +0,0 @@
-from __future__ import annotations
-
-import base64
-import binascii
-import email.utils
-import http
-import warnings
-from typing import Any, Callable, Generator, Sequence, cast
-
-from .datastructures import Headers, MultipleValuesError
-from .exceptions import (
-    InvalidHandshake,
-    InvalidHeader,
-    InvalidHeaderValue,
-    InvalidOrigin,
-    InvalidStatus,
-    InvalidUpgrade,
-    NegotiationError,
-)
-from .extensions import Extension, ServerExtensionFactory
-from .headers import (
-    build_extension,
-    parse_connection,
-    parse_extension,
-    parse_subprotocol,
-    parse_upgrade,
-)
-from .http11 import Request, Response
-from .protocol import CONNECTING, OPEN, SERVER, Protocol, State
-from .typing import (
-    ConnectionOption,
-    ExtensionHeader,
-    LoggerLike,
-    Origin,
-    StatusLike,
-    Subprotocol,
-    UpgradeProtocol,
-)
-from .utils import accept_key
-
-
-# See #940 for why lazy_import isn't used here for backwards compatibility.
-# See #1400 for why listing compatibility imports in __all__ helps PyCharm.
-from .legacy.server import *  # isort:skip  # noqa: I001
-from .legacy.server import __all__ as legacy__all__
-
-
-__all__ = ["ServerProtocol"] + legacy__all__
-
-
-class ServerProtocol(Protocol):
-    """
-    Sans-I/O implementation of a WebSocket server connection.
-
-    Args:
-        origins: Acceptable values of the ``Origin`` header; include
-            :obj:`None` in the list if the lack of an origin is acceptable.
-            This is useful for defending against Cross-Site WebSocket
-            Hijacking attacks.
-        extensions: List of supported extensions, in order in which they
-            should be tried.
-        subprotocols: List of supported subprotocols, in order of decreasing
-            preference.
-        select_subprotocol: Callback for selecting a subprotocol among
-            those supported by the client and the server. It has the same
-            signature as the :meth:`select_subprotocol` method, including a
-            :class:`ServerProtocol` instance as first argument.
-        state: Initial state of the WebSocket connection.
-        max_size: Maximum size of incoming messages in bytes;
-            :obj:`None` disables the limit.
-        logger: Logger for this connection;
-            defaults to ``logging.getLogger("websockets.server")``;
-            see the :doc:`logging guide <../../topics/logging>` for details.
-
-    """
-
-    def __init__(
-        self,
-        *,
-        origins: Sequence[Origin | None] | None = None,
-        extensions: Sequence[ServerExtensionFactory] | None = None,
-        subprotocols: Sequence[Subprotocol] | None = None,
-        select_subprotocol: (
-            Callable[
-                [ServerProtocol, Sequence[Subprotocol]],
-                Subprotocol | None,
-            ]
-            | None
-        ) = None,
-        state: State = CONNECTING,
-        max_size: int | None = 2**20,
-        logger: LoggerLike | None = None,
-    ) -> None:
-        super().__init__(
-            side=SERVER,
-            state=state,
-            max_size=max_size,
-            logger=logger,
-        )
-        self.origins = origins
-        self.available_extensions = extensions
-        self.available_subprotocols = subprotocols
-        if select_subprotocol is not None:
-            # Bind select_subprotocol then shadow self.select_subprotocol.
-            # Use setattr to work around https://github.com/python/mypy/issues/2427.
-            setattr(
-                self,
-                "select_subprotocol",
-                select_subprotocol.__get__(self, self.__class__),
-            )
-
-    def accept(self, request: Request) -> Response:
-        """
-        Create a handshake response to accept the connection.
-
-        If the handshake request is valid and the handshake successful,
-        :meth:`accept` returns an HTTP response with status code 101.
-
-        Else, it returns an HTTP response with another status code. This rejects
-        the connection, like :meth:`reject` would.
-
-        You must send the handshake response with :meth:`send_response`.
-
-        You may modify the response before sending it, typically by adding HTTP
-        headers.
-
-        Args:
-            request: WebSocket handshake request received from the client.
-
-        Returns:
-            WebSocket handshake response or HTTP response to send to the client.
-
-        """
-        try:
-            (
-                accept_header,
-                extensions_header,
-                protocol_header,
-            ) = self.process_request(request)
-        except InvalidOrigin as exc:
-            request._exception = exc
-            self.handshake_exc = exc
-            if self.debug:
-                self.logger.debug("! invalid origin", exc_info=True)
-            return self.reject(
-                http.HTTPStatus.FORBIDDEN,
-                f"Failed to open a WebSocket connection: {exc}.\n",
-            )
-        except InvalidUpgrade as exc:
-            request._exception = exc
-            self.handshake_exc = exc
-            if self.debug:
-                self.logger.debug("! invalid upgrade", exc_info=True)
-            response = self.reject(
-                http.HTTPStatus.UPGRADE_REQUIRED,
-                (
-                    f"Failed to open a WebSocket connection: {exc}.\n"
-                    f"\n"
-                    f"You cannot access a WebSocket server directly "
-                    f"with a browser. You need a WebSocket client.\n"
-                ),
-            )
-            response.headers["Upgrade"] = "websocket"
-            return response
-        except InvalidHandshake as exc:
-            request._exception = exc
-            self.handshake_exc = exc
-            if self.debug:
-                self.logger.debug("! invalid handshake", exc_info=True)
-            exc_chain = cast(BaseException, exc)
-            exc_str = f"{exc_chain}"
-            while exc_chain.__cause__ is not None:
-                exc_chain = exc_chain.__cause__
-                exc_str += f"; {exc_chain}"
-            return self.reject(
-                http.HTTPStatus.BAD_REQUEST,
-                f"Failed to open a WebSocket connection: {exc_str}.\n",
-            )
-        except Exception as exc:
-            # Handle exceptions raised by user-provided select_subprotocol and
-            # unexpected errors.
-            request._exception = exc
-            self.handshake_exc = exc
-            self.logger.error("opening handshake failed", exc_info=True)
-            return self.reject(
-                http.HTTPStatus.INTERNAL_SERVER_ERROR,
-                (
-                    "Failed to open a WebSocket connection.\n"
-                    "See server log for more information.\n"
-                ),
-            )
-
-        headers = Headers()
-
-        headers["Date"] = email.utils.formatdate(usegmt=True)
-
-        headers["Upgrade"] = "websocket"
-        headers["Connection"] = "Upgrade"
-        headers["Sec-WebSocket-Accept"] = accept_header
-
-        if extensions_header is not None:
-            headers["Sec-WebSocket-Extensions"] = extensions_header
-
-        if protocol_header is not None:
-            headers["Sec-WebSocket-Protocol"] = protocol_header
-
-        return Response(101, "Switching Protocols", headers)
-
-    def process_request(
-        self,
-        request: Request,
-    ) -> tuple[str, str | None, str | None]:
-        """
-        Check a handshake request and negotiate extensions and subprotocol.
-
-        This function doesn't verify that the request is an HTTP/1.1 or higher
-        GET request and doesn't check the ``Host`` header. These controls are
-        usually performed earlier in the HTTP request handling code. They're
-        the responsibility of the caller.
-
-        Args:
-            request: WebSocket handshake request received from the client.
-
-        Returns:
-            ``Sec-WebSocket-Accept``, ``Sec-WebSocket-Extensions``, and
-            ``Sec-WebSocket-Protocol`` headers for the handshake response.
-
-        Raises:
-            InvalidHandshake: If the handshake request is invalid;
-                then the server must return 400 Bad Request error.
-
-        """
-        headers = request.headers
-
-        connection: list[ConnectionOption] = sum(
-            [parse_connection(value) for value in headers.get_all("Connection")], []
-        )
-
-        if not any(value.lower() == "upgrade" for value in connection):
-            raise InvalidUpgrade(
-                "Connection", ", ".join(connection) if connection else None
-            )
-
-        upgrade: list[UpgradeProtocol] = sum(
-            [parse_upgrade(value) for value in headers.get_all("Upgrade")], []
-        )
-
-        # For compatibility with non-strict implementations, ignore case when
-        # checking the Upgrade header. The RFC always uses "websocket", except
-        # in section 11.2. (IANA registration) where it uses "WebSocket".
-        if not (len(upgrade) == 1 and upgrade[0].lower() == "websocket"):
-            raise InvalidUpgrade("Upgrade", ", ".join(upgrade) if upgrade else None)
-
-        try:
-            key = headers["Sec-WebSocket-Key"]
-        except KeyError as exc:
-            raise InvalidHeader("Sec-WebSocket-Key") from exc
-        except MultipleValuesError as exc:
-            raise InvalidHeader("Sec-WebSocket-Key", "multiple values") from exc
-
-        try:
-            raw_key = base64.b64decode(key.encode(), validate=True)
-        except binascii.Error as exc:
-            raise InvalidHeaderValue("Sec-WebSocket-Key", key) from exc
-        if len(raw_key) != 16:
-            raise InvalidHeaderValue("Sec-WebSocket-Key", key)
-
-        try:
-            version = headers["Sec-WebSocket-Version"]
-        except KeyError as exc:
-            raise InvalidHeader("Sec-WebSocket-Version") from exc
-        except MultipleValuesError as exc:
-            raise InvalidHeader("Sec-WebSocket-Version", "multiple values") from exc
-
-        if version != "13":
-            raise InvalidHeaderValue("Sec-WebSocket-Version", version)
-
-        accept_header = accept_key(key)
-
-        self.origin = self.process_origin(headers)
-
-        extensions_header, self.extensions = self.process_extensions(headers)
-
-        protocol_header = self.subprotocol = self.process_subprotocol(headers)
-
-        return (
-            accept_header,
-            extensions_header,
-            protocol_header,
-        )
-
-    def process_origin(self, headers: Headers) -> Origin | None:
-        """
-        Handle the Origin HTTP request header.
-
-        Args:
-            headers: WebSocket handshake request headers.
-
-        Returns:
-           origin, if it is acceptable.
-
-        Raises:
-            InvalidHandshake: If the Origin header is invalid.
-            InvalidOrigin: If the origin isn't acceptable.
-
-        """
-        # "The user agent MUST NOT include more than one Origin header field"
-        # per https://datatracker.ietf.org/doc/html/rfc6454#section-7.3.
-        try:
-            origin = headers.get("Origin")
-        except MultipleValuesError as exc:
-            raise InvalidHeader("Origin", "multiple values") from exc
-        if origin is not None:
-            origin = cast(Origin, origin)
-        if self.origins is not None:
-            if origin not in self.origins:
-                raise InvalidOrigin(origin)
-        return origin
-
-    def process_extensions(
-        self,
-        headers: Headers,
-    ) -> tuple[str | None, list[Extension]]:
-        """
-        Handle the Sec-WebSocket-Extensions HTTP request header.
-
-        Accept or reject each extension proposed in the client request.
-        Negotiate parameters for accepted extensions.
-
-        Per :rfc:`6455`, negotiation rules are defined by the specification of
-        each extension.
-
-        To provide this level of flexibility, for each extension proposed by
-        the client, we check for a match with each extension available in the
-        server configuration. If no match is found, the extension is ignored.
-
-        If several variants of the same extension are proposed by the client,
-        it may be accepted several times, which won't make sense in general.
-        Extensions must implement their own requirements. For this purpose,
-        the list of previously accepted extensions is provided.
-
-        This process doesn't allow the server to reorder extensions. It can
-        only select a subset of the extensions proposed by the client.
-
-        Other requirements, for example related to mandatory extensions or the
-        order of extensions, may be implemented by overriding this method.
-
-        Args:
-            headers: WebSocket handshake request headers.
-
-        Returns:
-            ``Sec-WebSocket-Extensions`` HTTP response header and list of
-            accepted extensions.
-
-        Raises:
-            InvalidHandshake: If the Sec-WebSocket-Extensions header is invalid.
-
-        """
-        response_header_value: str | None = None
-
-        extension_headers: list[ExtensionHeader] = []
-        accepted_extensions: list[Extension] = []
-
-        header_values = headers.get_all("Sec-WebSocket-Extensions")
-
-        if header_values and self.available_extensions:
-            parsed_header_values: list[ExtensionHeader] = sum(
-                [parse_extension(header_value) for header_value in header_values], []
-            )
-
-            for name, request_params in parsed_header_values:
-                for ext_factory in self.available_extensions:
-                    # Skip non-matching extensions based on their name.
-                    if ext_factory.name != name:
-                        continue
-
-                    # Skip non-matching extensions based on their params.
-                    try:
-                        response_params, extension = ext_factory.process_request_params(
-                            request_params, accepted_extensions
-                        )
-                    except NegotiationError:
-                        continue
-
-                    # Add matching extension to the final list.
-                    extension_headers.append((name, response_params))
-                    accepted_extensions.append(extension)
-
-                    # Break out of the loop once we have a match.
-                    break
-
-                # If we didn't break from the loop, no extension in our list
-                # matched what the client sent. The extension is declined.
-
-        # Serialize extension header.
-        if extension_headers:
-            response_header_value = build_extension(extension_headers)
-
-        return response_header_value, accepted_extensions
-
-    def process_subprotocol(self, headers: Headers) -> Subprotocol | None:
-        """
-        Handle the Sec-WebSocket-Protocol HTTP request header.
-
-        Args:
-            headers: WebSocket handshake request headers.
-
-        Returns:
-           Subprotocol, if one was selected; this is also the value of the
-           ``Sec-WebSocket-Protocol`` response header.
-
-        Raises:
-            InvalidHandshake: If the Sec-WebSocket-Subprotocol header is invalid.
-
-        """
-        subprotocols: Sequence[Subprotocol] = sum(
-            [
-                parse_subprotocol(header_value)
-                for header_value in headers.get_all("Sec-WebSocket-Protocol")
-            ],
-            [],
-        )
-
-        return self.select_subprotocol(subprotocols)
-
-    def select_subprotocol(
-        self,
-        subprotocols: Sequence[Subprotocol],
-    ) -> Subprotocol | None:
-        """
-        Pick a subprotocol among those offered by the client.
-
-        If several subprotocols are supported by both the client and the server,
-        pick the first one in the list declared the server.
-
-        If the server doesn't support any subprotocols, continue without a
-        subprotocol, regardless of what the client offers.
-
-        If the server supports at least one subprotocol and the client doesn't
-        offer any, abort the handshake with an HTTP 400 error.
-
-        You provide a ``select_subprotocol`` argument to :class:`ServerProtocol`
-        to override this logic. For example, you could accept the connection
-        even if client doesn't offer a subprotocol, rather than reject it.
-
-        Here's how to negotiate the ``chat`` subprotocol if the client supports
-        it and continue without a subprotocol otherwise::
-
-            def select_subprotocol(protocol, subprotocols):
-                if "chat" in subprotocols:
-                    return "chat"
-
-        Args:
-            subprotocols: List of subprotocols offered by the client.
-
-        Returns:
-            Selected subprotocol, if a common subprotocol was found.
-
-            :obj:`None` to continue without a subprotocol.
-
-        Raises:
-            NegotiationError: Custom implementations may raise this exception
-                to abort the handshake with an HTTP 400 error.
-
-        """
-        # Server doesn't offer any subprotocols.
-        if not self.available_subprotocols:  # None or empty list
-            return None
-
-        # Server offers at least one subprotocol but client doesn't offer any.
-        if not subprotocols:
-            raise NegotiationError("missing subprotocol")
-
-        # Server and client both offer subprotocols. Look for a shared one.
-        proposed_subprotocols = set(subprotocols)
-        for subprotocol in self.available_subprotocols:
-            if subprotocol in proposed_subprotocols:
-                return subprotocol
-
-        # No common subprotocol was found.
-        raise NegotiationError(
-            "invalid subprotocol; expected one of "
-            + ", ".join(self.available_subprotocols)
-        )
-
-    def reject(self, status: StatusLike, text: str) -> Response:
-        """
-        Create a handshake response to reject the connection.
-
-        A short plain text response is the best fallback when failing to
-        establish a WebSocket connection.
-
-        You must send the handshake response with :meth:`send_response`.
-
-        You may modify the response before sending it, for example by changing
-        HTTP headers.
-
-        Args:
-            status: HTTP status code.
-            text: HTTP response body; it will be encoded to UTF-8.
-
-        Returns:
-            HTTP response to send to the client.
-
-        """
-        # If a user passes an int instead of a HTTPStatus, fix it automatically.
-        status = http.HTTPStatus(status)
-        body = text.encode()
-        headers = Headers(
-            [
-                ("Date", email.utils.formatdate(usegmt=True)),
-                ("Connection", "close"),
-                ("Content-Length", str(len(body))),
-                ("Content-Type", "text/plain; charset=utf-8"),
-            ]
-        )
-        return Response(status.value, status.phrase, headers, body)
-
-    def send_response(self, response: Response) -> None:
-        """
-        Send a handshake response to the client.
-
-        Args:
-            response: WebSocket handshake response event to send.
-
-        """
-        if self.debug:
-            code, phrase = response.status_code, response.reason_phrase
-            self.logger.debug("> HTTP/1.1 %d %s", code, phrase)
-            for key, value in response.headers.raw_items():
-                self.logger.debug("> %s: %s", key, value)
-            if response.body is not None:
-                self.logger.debug("> [body] (%d bytes)", len(response.body))
-
-        self.writes.append(response.serialize())
-
-        if response.status_code == 101:
-            assert self.state is CONNECTING
-            self.state = OPEN
-            self.logger.info("connection open")
-
-        else:
-            # handshake_exc may be already set if accept() encountered an error.
-            # If the connection isn't open, set handshake_exc to guarantee that
-            # handshake_exc is None if and only if opening handshake succeeded.
-            if self.handshake_exc is None:
-                self.handshake_exc = InvalidStatus(response)
-            self.logger.info(
-                "connection rejected (%d %s)",
-                response.status_code,
-                response.reason_phrase,
-            )
-
-            self.send_eof()
-            self.parser = self.discard()
-            next(self.parser)  # start coroutine
-
-    def parse(self) -> Generator[None, None, None]:
-        if self.state is CONNECTING:
-            try:
-                request = yield from Request.parse(
-                    self.reader.read_line,
-                )
-            except Exception as exc:
-                self.handshake_exc = exc
-                self.send_eof()
-                self.parser = self.discard()
-                next(self.parser)  # start coroutine
-                yield
-
-            if self.debug:
-                self.logger.debug("< GET %s HTTP/1.1", request.path)
-                for key, value in request.headers.raw_items():
-                    self.logger.debug("< %s: %s", key, value)
-
-            self.events.append(request)
-
-        yield from super().parse()
-
-
-class ServerConnection(ServerProtocol):
-    def __init__(self, *args: Any, **kwargs: Any) -> None:
-        warnings.warn(  # deprecated in 11.0 - 2023-04-02
-            "ServerConnection was renamed to ServerProtocol",
-            DeprecationWarning,
-        )
-        super().__init__(*args, **kwargs)

plugins/gtksourceview/lsp_manager/websockets/speedups.c

@@ -1,222 +0,0 @@
-/* C implementation of performance sensitive functions. */
-
-#define PY_SSIZE_T_CLEAN
-#include <Python.h>
-#include <stdint.h> /* uint8_t, uint32_t, uint64_t */
-
-#if __ARM_NEON
-#include <arm_neon.h>
-#elif __SSE2__
-#include <emmintrin.h>
-#endif
-
-static const Py_ssize_t MASK_LEN = 4;
-
-/* Similar to PyBytes_AsStringAndSize, but accepts more types */
-
-static int
-_PyBytesLike_AsStringAndSize(PyObject *obj, PyObject **tmp, char **buffer, Py_ssize_t *length)
-{
-    // This supports bytes, bytearrays, and memoryview objects,
-    // which are common data structures for handling byte streams.
-    // If *tmp isn't NULL, the caller gets a new reference.
-    if (PyBytes_Check(obj))
-    {
-        *tmp = NULL;
-        *buffer = PyBytes_AS_STRING(obj);
-        *length = PyBytes_GET_SIZE(obj);
-    }
-    else if (PyByteArray_Check(obj))
-    {
-        *tmp = NULL;
-        *buffer = PyByteArray_AS_STRING(obj);
-        *length = PyByteArray_GET_SIZE(obj);
-    }
-    else if (PyMemoryView_Check(obj))
-    {
-        *tmp = PyMemoryView_GetContiguous(obj, PyBUF_READ, 'C');
-        if (*tmp == NULL)
-        {
-            return -1;
-        }
-        Py_buffer *mv_buf;
-        mv_buf = PyMemoryView_GET_BUFFER(*tmp);
-        *buffer = mv_buf->buf;
-        *length = mv_buf->len;
-    }
-    else
-    {
-        PyErr_Format(
-            PyExc_TypeError,
-            "expected a bytes-like object, %.200s found",
-            Py_TYPE(obj)->tp_name);
-        return -1;
-    }
-
-    return 0;
-}
-
-/* C implementation of websockets.utils.apply_mask */
-
-static PyObject *
-apply_mask(PyObject *self, PyObject *args, PyObject *kwds)
-{
-
-    // In order to support various bytes-like types, accept any Python object.
-
-    static char *kwlist[] = {"data", "mask", NULL};
-    PyObject *input_obj;
-    PyObject *mask_obj;
-
-    // A pointer to a char * + length will be extracted from the data and mask
-    // arguments, possibly via a Py_buffer.
-
-    PyObject *input_tmp = NULL;
-    char *input;
-    Py_ssize_t input_len;
-    PyObject *mask_tmp = NULL;
-    char *mask;
-    Py_ssize_t mask_len;
-
-    // Initialize a PyBytesObject then get a pointer to the underlying char *
-    // in order to avoid an extra memory copy in PyBytes_FromStringAndSize.
-
-    PyObject *result = NULL;
-    char *output;
-
-    // Other variables.
-
-    Py_ssize_t i = 0;
-
-    // Parse inputs.
-
-    if (!PyArg_ParseTupleAndKeywords(
-            args, kwds, "OO", kwlist, &input_obj, &mask_obj))
-    {
-        goto exit;
-    }
-
-    if (_PyBytesLike_AsStringAndSize(input_obj, &input_tmp, &input, &input_len) == -1)
-    {
-        goto exit;
-    }
-
-    if (_PyBytesLike_AsStringAndSize(mask_obj, &mask_tmp, &mask, &mask_len) == -1)
-    {
-        goto exit;
-    }
-
-    if (mask_len != MASK_LEN)
-    {
-        PyErr_SetString(PyExc_ValueError, "mask must contain 4 bytes");
-        goto exit;
-    }
-
-    // Create output.
-
-    result = PyBytes_FromStringAndSize(NULL, input_len);
-    if (result == NULL)
-    {
-        goto exit;
-    }
-
-    // Since we just created result, we don't need error checks.
-    output = PyBytes_AS_STRING(result);
-
-    // Perform the masking operation.
-
-    // Apparently GCC cannot figure out the following optimizations by itself.
-
-    // We need a new scope for MSVC 2010 (non C99 friendly)
-    {
-#if __ARM_NEON
-
-        // With NEON support, XOR by blocks of 16 bytes = 128 bits.
-
-        Py_ssize_t input_len_128 = input_len & ~15;
-        uint8x16_t mask_128 = vreinterpretq_u8_u32(vdupq_n_u32(*(uint32_t *)mask));
-
-        for (; i < input_len_128; i += 16)
-        {
-            uint8x16_t in_128 = vld1q_u8((uint8_t *)(input + i));
-            uint8x16_t out_128 = veorq_u8(in_128, mask_128);
-            vst1q_u8((uint8_t *)(output + i), out_128);
-        }
-
-#elif __SSE2__
-
-        // With SSE2 support, XOR by blocks of 16 bytes = 128 bits.
-
-        // Since we cannot control the 16-bytes alignment of input and output
-        // buffers, we rely on loadu/storeu rather than load/store.
-
-        Py_ssize_t input_len_128 = input_len & ~15;
-        __m128i mask_128 = _mm_set1_epi32(*(uint32_t *)mask);
-
-        for (; i < input_len_128; i += 16)
-        {
-            __m128i in_128 = _mm_loadu_si128((__m128i *)(input + i));
-            __m128i out_128 = _mm_xor_si128(in_128, mask_128);
-            _mm_storeu_si128((__m128i *)(output + i), out_128);
-        }
-
-#else
-
-        // Without SSE2 support, XOR by blocks of 8 bytes = 64 bits.
-
-        // We assume the memory allocator aligns everything on 8 bytes boundaries.
-
-        Py_ssize_t input_len_64 = input_len & ~7;
-        uint32_t mask_32 = *(uint32_t *)mask;
-        uint64_t mask_64 = ((uint64_t)mask_32 << 32) | (uint64_t)mask_32;
-
-        for (; i < input_len_64; i += 8)
-        {
-            *(uint64_t *)(output + i) = *(uint64_t *)(input + i) ^ mask_64;
-        }
-
-#endif
-    }
-
-    // XOR the remainder of the input byte by byte.
-
-    for (; i < input_len; i++)
-    {
-        output[i] = input[i] ^ mask[i & (MASK_LEN - 1)];
-    }
-
-exit:
-    Py_XDECREF(input_tmp);
-    Py_XDECREF(mask_tmp);
-    return result;
-
-}
-
-static PyMethodDef speedups_methods[] = {
-    {
-        "apply_mask",
-        (PyCFunction)apply_mask,
-        METH_VARARGS | METH_KEYWORDS,
-        "Apply masking to the data of a WebSocket message.",
-    },
-    {NULL, NULL, 0, NULL},      /* Sentinel */
-};
-
-static struct PyModuleDef speedups_module = {
-    PyModuleDef_HEAD_INIT,
-    "websocket.speedups",       /* m_name */
-    "C implementation of performance sensitive functions.",
-                                /* m_doc */
-    -1,                         /* m_size */
-    speedups_methods,           /* m_methods */
-    NULL,
-    NULL,
-    NULL,
-    NULL
-};
-
-PyMODINIT_FUNC
-PyInit_speedups(void)
-{
-    return PyModule_Create(&speedups_module);
-}

plugins/gtksourceview/lsp_manager/websockets/speedups.pyi

@@ -1 +0,0 @@
-def apply_mask(data: bytes, mask: bytes) -> bytes: ...

plugins/gtksourceview/lsp_manager/websockets/streams.py

@@ -1,151 +0,0 @@
-from __future__ import annotations
-
-from typing import Generator
-
-
-class StreamReader:
-    """
-    Generator-based stream reader.
-
-    This class doesn't support concurrent calls to :meth:`read_line`,
-    :meth:`read_exact`, or :meth:`read_to_eof`. Make sure calls are
-    serialized.
-
-    """
-
-    def __init__(self) -> None:
-        self.buffer = bytearray()
-        self.eof = False
-
-    def read_line(self, m: int) -> Generator[None, None, bytes]:
-        """
-        Read a LF-terminated line from the stream.
-
-        This is a generator-based coroutine.
-
-        The return value includes the LF character.
-
-        Args:
-            m: Maximum number bytes to read; this is a security limit.
-
-        Raises:
-            EOFError: If the stream ends without a LF.
-            RuntimeError: If the stream ends in more than ``m`` bytes.
-
-        """
-        n = 0  # number of bytes to read
-        p = 0  # number of bytes without a newline
-        while True:
-            n = self.buffer.find(b"\n", p) + 1
-            if n > 0:
-                break
-            p = len(self.buffer)
-            if p > m:
-                raise RuntimeError(f"read {p} bytes, expected no more than {m} bytes")
-            if self.eof:
-                raise EOFError(f"stream ends after {p} bytes, before end of line")
-            yield
-        if n > m:
-            raise RuntimeError(f"read {n} bytes, expected no more than {m} bytes")
-        r = self.buffer[:n]
-        del self.buffer[:n]
-        return r
-
-    def read_exact(self, n: int) -> Generator[None, None, bytes]:
-        """
-        Read a given number of bytes from the stream.
-
-        This is a generator-based coroutine.
-
-        Args:
-            n: How many bytes to read.
-
-        Raises:
-            EOFError: If the stream ends in less than ``n`` bytes.
-
-        """
-        assert n >= 0
-        while len(self.buffer) < n:
-            if self.eof:
-                p = len(self.buffer)
-                raise EOFError(f"stream ends after {p} bytes, expected {n} bytes")
-            yield
-        r = self.buffer[:n]
-        del self.buffer[:n]
-        return r
-
-    def read_to_eof(self, m: int) -> Generator[None, None, bytes]:
-        """
-        Read all bytes from the stream.
-
-        This is a generator-based coroutine.
-
-        Args:
-            m: Maximum number bytes to read; this is a security limit.
-
-        Raises:
-            RuntimeError: If the stream ends in more than ``m`` bytes.
-
-        """
-        while not self.eof:
-            p = len(self.buffer)
-            if p > m:
-                raise RuntimeError(f"read {p} bytes, expected no more than {m} bytes")
-            yield
-        r = self.buffer[:]
-        del self.buffer[:]
-        return r
-
-    def at_eof(self) -> Generator[None, None, bool]:
-        """
-        Tell whether the stream has ended and all data was read.
-
-        This is a generator-based coroutine.
-
-        """
-        while True:
-            if self.buffer:
-                return False
-            if self.eof:
-                return True
-            # When all data was read but the stream hasn't ended, we can't
-            # tell if until either feed_data() or feed_eof() is called.
-            yield
-
-    def feed_data(self, data: bytes) -> None:
-        """
-        Write data to the stream.
-
-        :meth:`feed_data` cannot be called after :meth:`feed_eof`.
-
-        Args:
-            data: Data to write.
-
-        Raises:
-            EOFError: If the stream has ended.
-
-        """
-        if self.eof:
-            raise EOFError("stream ended")
-        self.buffer += data
-
-    def feed_eof(self) -> None:
-        """
-        End the stream.
-
-        :meth:`feed_eof` cannot be called more than once.
-
-        Raises:
-            EOFError: If the stream has ended.
-
-        """
-        if self.eof:
-            raise EOFError("stream ended")
-        self.eof = True
-
-    def discard(self) -> None:
-        """
-        Discard all buffered data, but don't end the stream.
-
-        """
-        del self.buffer[:]

plugins/gtksourceview/lsp_manager/websockets/sync/client.py

@@ -1,336 +0,0 @@
-from __future__ import annotations
-
-import socket
-import ssl as ssl_module
-import threading
-import warnings
-from typing import Any, Sequence
-
-from ..client import ClientProtocol
-from ..datastructures import HeadersLike
-from ..extensions.base import ClientExtensionFactory
-from ..extensions.permessage_deflate import enable_client_permessage_deflate
-from ..headers import validate_subprotocols
-from ..http11 import USER_AGENT, Response
-from ..protocol import CONNECTING, Event
-from ..typing import LoggerLike, Origin, Subprotocol
-from ..uri import 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.
-
-    Args:
-        socket: Socket connected to a WebSocket server.
-        protocol: Sans-I/O connection.
-        close_timeout: Timeout for closing the connection in seconds.
-
-    """
-
-    def __init__(
-        self,
-        socket: socket.socket,
-        protocol: ClientProtocol,
-        *,
-        close_timeout: float | None = 10,
-    ) -> None:
-        self.protocol: ClientProtocol
-        self.response_rcvd = threading.Event()
-        super().__init__(
-            socket,
-            protocol,
-            close_timeout=close_timeout,
-        )
-
-    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["User-Agent"] = user_agent_header
-            self.protocol.send_request(self.request)
-
-        if not self.response_rcvd.wait(timeout):
-            raise TimeoutError("timed out during handshake")
-
-        # self.protocol.handshake_exc is always 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,
-    additional_headers: HeadersLike | None = None,
-    user_agent_header: str | None = USER_AGENT,
-    compression: str | None = "deflate",
-    # Timeouts
-    open_timeout: float | None = 10,
-    close_timeout: float | None = 10,
-    # Limits
-    max_size: int | None = 2**20,
-    # 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.
-        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.
-        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.
-        open_timeout: Timeout for opening the connection in seconds.
-            :obj:`None` disables the timeout.
-        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.
-        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,
-        )
-
-    wsuri = parse_uri(uri)
-    if not wsuri.secure and ssl is not None:
-        raise TypeError("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 TypeError("missing path argument")
-        elif path is not None and sock is not None:
-            raise TypeError("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}")
-
-    # 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)
-            else:
-                kwargs.setdefault("timeout", deadline.timeout())
-                sock = socket.create_connection((wsuri.host, wsuri.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 wsuri.secure:
-            if ssl is None:
-                ssl = ssl_module.create_default_context()
-            if server_hostname is None:
-                server_hostname = wsuri.host
-            sock.settimeout(deadline.timeout())
-            sock = ssl.wrap_socket(sock, server_hostname=server_hostname)
-            sock.settimeout(None)
-
-        # Initialize WebSocket protocol
-
-        protocol = ClientProtocol(
-            wsuri,
-            origin=origin,
-            extensions=extensions,
-            subprotocols=subprotocols,
-            max_size=max_size,
-            logger=logger,
-        )
-
-        # Initialize WebSocket connection
-
-        connection = create_connection(
-            sock,
-            protocol,
-            close_timeout=close_timeout,
-        )
-    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
-
-    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)

plugins/gtksourceview/lsp_manager/websockets/sync/connection.py

@@ -1,791 +0,0 @@
-from __future__ import annotations
-
-import contextlib
-import logging
-import random
-import socket
-import struct
-import threading
-import uuid
-from types import TracebackType
-from typing import Any, Iterable, Iterator, Mapping
-
-from ..exceptions import (
-    ConcurrencyError,
-    ConnectionClosed,
-    ConnectionClosedOK,
-    ProtocolError,
-)
-from ..frames import DATA_OPCODES, BytesLike, CloseCode, Frame, Opcode
-from ..http11 import Request, Response
-from ..protocol import CLOSED, OPEN, Event, Protocol, State
-from ..typing import Data, LoggerLike, Subprotocol
-from .messages import Assembler
-from .utils import Deadline
-
-
-__all__ = ["Connection"]
-
-
-class Connection:
-    """
-    :mod:`threading` implementation of a WebSocket connection.
-
-    :class:`Connection` provides APIs shared between WebSocket servers and
-    clients.
-
-    You shouldn't use it directly. Instead, use
-    :class:`~websockets.sync.client.ClientConnection` or
-    :class:`~websockets.sync.server.ServerConnection`.
-
-    """
-
-    recv_bufsize = 65536
-
-    def __init__(
-        self,
-        socket: socket.socket,
-        protocol: Protocol,
-        *,
-        close_timeout: float | None = 10,
-    ) -> None:
-        self.socket = socket
-        self.protocol = protocol
-        self.close_timeout = close_timeout
-
-        # Inject reference to this instance in the protocol's logger.
-        self.protocol.logger = logging.LoggerAdapter(
-            self.protocol.logger,
-            {"websocket": self},
-        )
-
-        # Copy attributes from the protocol for convenience.
-        self.id: uuid.UUID = self.protocol.id
-        """Unique identifier of the connection. Useful in logs."""
-        self.logger: LoggerLike = self.protocol.logger
-        """Logger for this connection."""
-        self.debug = self.protocol.debug
-
-        # HTTP handshake request and response.
-        self.request: Request | None = None
-        """Opening handshake request."""
-        self.response: Response | None = None
-        """Opening handshake response."""
-
-        # Mutex serializing interactions with the protocol.
-        self.protocol_mutex = threading.Lock()
-
-        # Assembler turning frames into messages and serializing reads.
-        self.recv_messages = Assembler()
-
-        # Whether we are busy sending a fragmented message.
-        self.send_in_progress = False
-
-        # Deadline for the closing handshake.
-        self.close_deadline: Deadline | None = None
-
-        # Mapping of ping IDs to pong waiters, in chronological order.
-        self.ping_waiters: dict[bytes, threading.Event] = {}
-
-        # Receiving events from the socket. This thread explicitly is marked as
-        # to support creating a connection in a non-daemon thread then using it
-        # in a daemon thread; this shouldn't block the intpreter from exiting.
-        self.recv_events_thread = threading.Thread(
-            target=self.recv_events,
-            daemon=True,
-        )
-        self.recv_events_thread.start()
-
-        # Exception raised in recv_events, to be chained to ConnectionClosed
-        # in the user thread in order to show why the TCP connection dropped.
-        self.recv_exc: BaseException | None = None
-
-    # Public attributes
-
-    @property
-    def local_address(self) -> Any:
-        """
-        Local address of the connection.
-
-        For IPv4 connections, this is a ``(host, port)`` tuple.
-
-        The format of the address depends on the address family.
-        See :meth:`~socket.socket.getsockname`.
-
-        """
-        return self.socket.getsockname()
-
-    @property
-    def remote_address(self) -> Any:
-        """
-        Remote address of the connection.
-
-        For IPv4 connections, this is a ``(host, port)`` tuple.
-
-        The format of the address depends on the address family.
-        See :meth:`~socket.socket.getpeername`.
-
-        """
-        return self.socket.getpeername()
-
-    @property
-    def subprotocol(self) -> Subprotocol | None:
-        """
-        Subprotocol negotiated during the opening handshake.
-
-        :obj:`None` if no subprotocol was negotiated.
-
-        """
-        return self.protocol.subprotocol
-
-    # Public methods
-
-    def __enter__(self) -> Connection:
-        return self
-
-    def __exit__(
-        self,
-        exc_type: type[BaseException] | None,
-        exc_value: BaseException | None,
-        traceback: TracebackType | None,
-    ) -> None:
-        if exc_type is None:
-            self.close()
-        else:
-            self.close(CloseCode.INTERNAL_ERROR)
-
-    def __iter__(self) -> Iterator[Data]:
-        """
-        Iterate on incoming messages.
-
-        The iterator calls :meth:`recv` and yields messages in an infinite loop.
-
-        It exits when the connection is closed normally. It raises a
-        :exc:`~websockets.exceptions.ConnectionClosedError` exception after a
-        protocol error or a network failure.
-
-        """
-        try:
-            while True:
-                yield self.recv()
-        except ConnectionClosedOK:
-            return
-
-    def recv(self, timeout: float | None = None) -> Data:
-        """
-        Receive the next message.
-
-        When the connection is closed, :meth:`recv` raises
-        :exc:`~websockets.exceptions.ConnectionClosed`. Specifically, it raises
-        :exc:`~websockets.exceptions.ConnectionClosedOK` after a normal closure
-        and :exc:`~websockets.exceptions.ConnectionClosedError` after a protocol
-        error or a network failure. This is how you detect the end of the
-        message stream.
-
-        If ``timeout`` is :obj:`None`, block until a message is received. If
-        ``timeout`` is set and no message is received within ``timeout``
-        seconds, raise :exc:`TimeoutError`. Set ``timeout`` to ``0`` to check if
-        a message was already received.
-
-        If the message is fragmented, wait until all fragments are received,
-        reassemble them, and return the whole message.
-
-        Returns:
-            A string (:class:`str`) for a Text_ frame or a bytestring
-            (:class:`bytes`) for a Binary_ frame.
-
-            .. _Text: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-            .. _Binary: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-        Raises:
-            ConnectionClosed: When the connection is closed.
-            ConcurrencyError: If two threads call :meth:`recv` or
-                :meth:`recv_streaming` concurrently.
-
-        """
-        try:
-            return self.recv_messages.get(timeout)
-        except EOFError:
-            raise self.protocol.close_exc from self.recv_exc
-        except ConcurrencyError:
-            raise ConcurrencyError(
-                "cannot call recv while another thread "
-                "is already running recv or recv_streaming"
-            ) from None
-
-    def recv_streaming(self) -> Iterator[Data]:
-        """
-        Receive the next message frame by frame.
-
-        If the message is fragmented, yield each fragment as it is received.
-        The iterator must be fully consumed, or else the connection will become
-        unusable.
-
-        :meth:`recv_streaming` raises the same exceptions as :meth:`recv`.
-
-        Returns:
-            An iterator of strings (:class:`str`) for a Text_ frame or
-            bytestrings (:class:`bytes`) for a Binary_ frame.
-
-            .. _Text: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-            .. _Binary: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-        Raises:
-            ConnectionClosed: When the connection is closed.
-            ConcurrencyError: If two threads call :meth:`recv` or
-                :meth:`recv_streaming` concurrently.
-
-        """
-        try:
-            for frame in self.recv_messages.get_iter():
-                yield frame
-        except EOFError:
-            raise self.protocol.close_exc from self.recv_exc
-        except ConcurrencyError:
-            raise ConcurrencyError(
-                "cannot call recv_streaming while another thread "
-                "is already running recv or recv_streaming"
-            ) from None
-
-    def send(self, message: Data | Iterable[Data]) -> None:
-        """
-        Send a message.
-
-        A string (:class:`str`) is sent as a Text_ frame. A bytestring or
-        bytes-like object (:class:`bytes`, :class:`bytearray`, or
-        :class:`memoryview`) is sent as a Binary_ frame.
-
-        .. _Text: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-        .. _Binary: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-        :meth:`send` also accepts an iterable of strings, bytestrings, or
-        bytes-like objects to enable fragmentation_. Each item is treated as a
-        message fragment and sent in its own frame. All items must be of the
-        same type, or else :meth:`send` will raise a :exc:`TypeError` and the
-        connection will be closed.
-
-        .. _fragmentation: https://datatracker.ietf.org/doc/html/rfc6455#section-5.4
-
-        :meth:`send` rejects dict-like objects because this is often an error.
-        (If you really want to send the keys of a dict-like object as fragments,
-        call its :meth:`~dict.keys` method and pass the result to :meth:`send`.)
-
-        When the connection is closed, :meth:`send` raises
-        :exc:`~websockets.exceptions.ConnectionClosed`. Specifically, it
-        raises :exc:`~websockets.exceptions.ConnectionClosedOK` after a normal
-        connection closure and
-        :exc:`~websockets.exceptions.ConnectionClosedError` after a protocol
-        error or a network failure.
-
-        Args:
-            message: Message to send.
-
-        Raises:
-            ConnectionClosed: When the connection is closed.
-            ConcurrencyError: If the connection is sending a fragmented message.
-            TypeError: If ``message`` doesn't have a supported type.
-
-        """
-        # Unfragmented message -- this case must be handled first because
-        # strings and bytes-like objects are iterable.
-
-        if isinstance(message, str):
-            with self.send_context():
-                if self.send_in_progress:
-                    raise ConcurrencyError(
-                        "cannot call send while another thread "
-                        "is already running send"
-                    )
-                self.protocol.send_text(message.encode())
-
-        elif isinstance(message, BytesLike):
-            with self.send_context():
-                if self.send_in_progress:
-                    raise ConcurrencyError(
-                        "cannot call send while another thread "
-                        "is already running send"
-                    )
-                self.protocol.send_binary(message)
-
-        # Catch a common mistake -- passing a dict to send().
-
-        elif isinstance(message, Mapping):
-            raise TypeError("data is a dict-like object")
-
-        # Fragmented message -- regular iterator.
-
-        elif isinstance(message, Iterable):
-            chunks = iter(message)
-            try:
-                chunk = next(chunks)
-            except StopIteration:
-                return
-
-            try:
-                # First fragment.
-                if isinstance(chunk, str):
-                    text = True
-                    with self.send_context():
-                        if self.send_in_progress:
-                            raise ConcurrencyError(
-                                "cannot call send while another thread "
-                                "is already running send"
-                            )
-                        self.send_in_progress = True
-                        self.protocol.send_text(
-                            chunk.encode(),
-                            fin=False,
-                        )
-                elif isinstance(chunk, BytesLike):
-                    text = False
-                    with self.send_context():
-                        if self.send_in_progress:
-                            raise ConcurrencyError(
-                                "cannot call send while another thread "
-                                "is already running send"
-                            )
-                        self.send_in_progress = True
-                        self.protocol.send_binary(
-                            chunk,
-                            fin=False,
-                        )
-                else:
-                    raise TypeError("data iterable must contain bytes or str")
-
-                # Other fragments
-                for chunk in chunks:
-                    if isinstance(chunk, str) and text:
-                        with self.send_context():
-                            assert self.send_in_progress
-                            self.protocol.send_continuation(
-                                chunk.encode(),
-                                fin=False,
-                            )
-                    elif isinstance(chunk, BytesLike) and not text:
-                        with self.send_context():
-                            assert self.send_in_progress
-                            self.protocol.send_continuation(
-                                chunk,
-                                fin=False,
-                            )
-                    else:
-                        raise TypeError("data iterable must contain uniform types")
-
-                # Final fragment.
-                with self.send_context():
-                    self.protocol.send_continuation(b"", fin=True)
-                    self.send_in_progress = False
-
-            except ConcurrencyError:
-                # We didn't start sending a fragmented message.
-                # The connection is still usable.
-                raise
-
-            except Exception:
-                # We're half-way through a fragmented message and we can't
-                # complete it. This makes the connection unusable.
-                with self.send_context():
-                    self.protocol.fail(
-                        CloseCode.INTERNAL_ERROR,
-                        "error in fragmented message",
-                    )
-                raise
-
-        else:
-            raise TypeError("data must be str, bytes, or iterable")
-
-    def close(self, code: int = CloseCode.NORMAL_CLOSURE, reason: str = "") -> None:
-        """
-        Perform the closing handshake.
-
-        :meth:`close` waits for the other end to complete the handshake, for the
-        TCP connection to terminate, and for all incoming messages to be read
-        with :meth:`recv`.
-
-        :meth:`close` is idempotent: it doesn't do anything once the
-        connection is closed.
-
-        Args:
-            code: WebSocket close code.
-            reason: WebSocket close reason.
-
-        """
-        try:
-            # The context manager takes care of waiting for the TCP connection
-            # to terminate after calling a method that sends a close frame.
-            with self.send_context():
-                if self.send_in_progress:
-                    self.protocol.fail(
-                        CloseCode.INTERNAL_ERROR,
-                        "close during fragmented message",
-                    )
-                else:
-                    self.protocol.send_close(code, reason)
-        except ConnectionClosed:
-            # Ignore ConnectionClosed exceptions raised from send_context().
-            # They mean that the connection is closed, which was the goal.
-            pass
-
-    def ping(self, data: Data | None = None) -> threading.Event:
-        """
-        Send a Ping_.
-
-        .. _Ping: https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.2
-
-        A ping may serve as a keepalive or as a check that the remote endpoint
-        received all messages up to this point
-
-        Args:
-            data: Payload of the ping. A :class:`str` will be encoded to UTF-8.
-                If ``data`` is :obj:`None`, the payload is four random bytes.
-
-        Returns:
-            An event that will be set when the corresponding pong is received.
-            You can ignore it if you don't intend to wait.
-
-            ::
-
-                pong_event = ws.ping()
-                pong_event.wait()  # only if you want to wait for the pong
-
-        Raises:
-            ConnectionClosed: When the connection is closed.
-            ConcurrencyError: If another ping was sent with the same data and
-                the corresponding pong wasn't received yet.
-
-        """
-        if isinstance(data, BytesLike):
-            data = bytes(data)
-        elif isinstance(data, str):
-            data = data.encode()
-        elif data is not None:
-            raise TypeError("data must be str or bytes-like")
-
-        with self.send_context():
-            # Protect against duplicates if a payload is explicitly set.
-            if data in self.ping_waiters:
-                raise ConcurrencyError("already waiting for a pong with the same data")
-
-            # Generate a unique random payload otherwise.
-            while data is None or data in self.ping_waiters:
-                data = struct.pack("!I", random.getrandbits(32))
-
-            pong_waiter = threading.Event()
-            self.ping_waiters[data] = pong_waiter
-            self.protocol.send_ping(data)
-            return pong_waiter
-
-    def pong(self, data: Data = b"") -> None:
-        """
-        Send a Pong_.
-
-        .. _Pong: https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.3
-
-        An unsolicited pong may serve as a unidirectional heartbeat.
-
-        Args:
-            data: Payload of the pong. A :class:`str` will be encoded to UTF-8.
-
-        Raises:
-            ConnectionClosed: When the connection is closed.
-
-        """
-        if isinstance(data, BytesLike):
-            data = bytes(data)
-        elif isinstance(data, str):
-            data = data.encode()
-        else:
-            raise TypeError("data must be str or bytes-like")
-
-        with self.send_context():
-            self.protocol.send_pong(data)
-
-    # Private methods
-
-    def process_event(self, event: Event) -> None:
-        """
-        Process one incoming event.
-
-        This method is overridden in subclasses to handle the handshake.
-
-        """
-        assert isinstance(event, Frame)
-        if event.opcode in DATA_OPCODES:
-            self.recv_messages.put(event)
-
-        if event.opcode is Opcode.PONG:
-            self.acknowledge_pings(bytes(event.data))
-
-    def acknowledge_pings(self, data: bytes) -> None:
-        """
-        Acknowledge pings when receiving a pong.
-
-        """
-        with self.protocol_mutex:
-            # Ignore unsolicited pong.
-            if data not in self.ping_waiters:
-                return
-            # Sending a pong for only the most recent ping is legal.
-            # Acknowledge all previous pings too in that case.
-            ping_id = None
-            ping_ids = []
-            for ping_id, ping in self.ping_waiters.items():
-                ping_ids.append(ping_id)
-                ping.set()
-                if ping_id == data:
-                    break
-            else:
-                raise AssertionError("solicited pong not found in pings")
-            # Remove acknowledged pings from self.ping_waiters.
-            for ping_id in ping_ids:
-                del self.ping_waiters[ping_id]
-
-    def recv_events(self) -> None:
-        """
-        Read incoming data from the socket and process events.
-
-        Run this method in a thread as long as the connection is alive.
-
-        ``recv_events()`` exits immediately when the ``self.socket`` is closed.
-
-        """
-        try:
-            while True:
-                try:
-                    if self.close_deadline is not None:
-                        self.socket.settimeout(self.close_deadline.timeout())
-                    data = self.socket.recv(self.recv_bufsize)
-                except Exception as exc:
-                    if self.debug:
-                        self.logger.debug("error while receiving data", exc_info=True)
-                    # When the closing handshake is initiated by our side,
-                    # recv() may block until send_context() closes the socket.
-                    # In that case, send_context() already set recv_exc.
-                    # Calling set_recv_exc() avoids overwriting it.
-                    with self.protocol_mutex:
-                        self.set_recv_exc(exc)
-                    break
-
-                if data == b"":
-                    break
-
-                # Acquire the connection lock.
-                with self.protocol_mutex:
-                    # Feed incoming data to the protocol.
-                    self.protocol.receive_data(data)
-
-                    # This isn't expected to raise an exception.
-                    events = self.protocol.events_received()
-
-                    # Write outgoing data to the socket.
-                    try:
-                        self.send_data()
-                    except Exception as exc:
-                        if self.debug:
-                            self.logger.debug("error while sending data", exc_info=True)
-                        # Similarly to the above, avoid overriding an exception
-                        # set by send_context(), in case of a race condition
-                        # i.e. send_context() closes the socket after recv()
-                        # returns above but before send_data() calls send().
-                        self.set_recv_exc(exc)
-                        break
-
-                    if self.protocol.close_expected():
-                        # If the connection is expected to close soon, set the
-                        # close deadline based on the close timeout.
-                        if self.close_deadline is None:
-                            self.close_deadline = Deadline(self.close_timeout)
-
-                # Unlock conn_mutex before processing events. Else, the
-                # application can't send messages in response to events.
-
-                # If self.send_data raised an exception, then events are lost.
-                # Given that automatic responses write small amounts of data,
-                # this should be uncommon, so we don't handle the edge case.
-
-                try:
-                    for event in events:
-                        # This may raise EOFError if the closing handshake
-                        # times out while a message is waiting to be read.
-                        self.process_event(event)
-                except EOFError:
-                    break
-
-            # Breaking out of the while True: ... loop means that we believe
-            # that the socket doesn't work anymore.
-            with self.protocol_mutex:
-                # Feed the end of the data stream to the protocol.
-                self.protocol.receive_eof()
-
-                # This isn't expected to generate events.
-                assert not self.protocol.events_received()
-
-                # There is no error handling because send_data() can only write
-                # the end of the data stream here and it handles errors itself.
-                self.send_data()
-
-        except Exception as exc:
-            # This branch should never run. It's a safety net in case of bugs.
-            self.logger.error("unexpected internal error", exc_info=True)
-            with self.protocol_mutex:
-                self.set_recv_exc(exc)
-            # We don't know where we crashed. Force protocol state to CLOSED.
-            self.protocol.state = CLOSED
-        finally:
-            # This isn't expected to raise an exception.
-            self.close_socket()
-
-    @contextlib.contextmanager
-    def send_context(
-        self,
-        *,
-        expected_state: State = OPEN,  # CONNECTING during the opening handshake
-    ) -> Iterator[None]:
-        """
-        Create a context for writing to the connection from user code.
-
-        On entry, :meth:`send_context` acquires the connection lock and checks
-        that the connection is open; on exit, it writes outgoing data to the
-        socket::
-
-            with self.send_context():
-                self.protocol.send_text(message.encode())
-
-        When the connection isn't open on entry, when the connection is expected
-        to close on exit, or when an unexpected error happens, terminating the
-        connection, :meth:`send_context` waits until the connection is closed
-        then raises :exc:`~websockets.exceptions.ConnectionClosed`.
-
-        """
-        # Should we wait until the connection is closed?
-        wait_for_close = False
-        # Should we close the socket and raise ConnectionClosed?
-        raise_close_exc = False
-        # What exception should we chain ConnectionClosed to?
-        original_exc: BaseException | None = None
-
-        # Acquire the protocol lock.
-        with self.protocol_mutex:
-            if self.protocol.state is expected_state:
-                # Let the caller interact with the protocol.
-                try:
-                    yield
-                except (ProtocolError, ConcurrencyError):
-                    # The protocol state wasn't changed. Exit immediately.
-                    raise
-                except Exception as exc:
-                    self.logger.error("unexpected internal error", exc_info=True)
-                    # This branch should never run. It's a safety net in case of
-                    # bugs. Since we don't know what happened, we will close the
-                    # connection and raise the exception to the caller.
-                    wait_for_close = False
-                    raise_close_exc = True
-                    original_exc = exc
-                else:
-                    # Check if the connection is expected to close soon.
-                    if self.protocol.close_expected():
-                        wait_for_close = True
-                        # If the connection is expected to close soon, set the
-                        # close deadline based on the close timeout.
-                        # Since we tested earlier that protocol.state was OPEN
-                        # (or CONNECTING) and we didn't release protocol_mutex,
-                        # it is certain that self.close_deadline is still None.
-                        assert self.close_deadline is None
-                        self.close_deadline = Deadline(self.close_timeout)
-                    # Write outgoing data to the socket.
-                    try:
-                        self.send_data()
-                    except Exception as exc:
-                        if self.debug:
-                            self.logger.debug("error while sending data", exc_info=True)
-                        # While the only expected exception here is OSError,
-                        # other exceptions would be treated identically.
-                        wait_for_close = False
-                        raise_close_exc = True
-                        original_exc = exc
-
-            else:  # self.protocol.state is not expected_state
-                # Minor layering violation: we assume that the connection
-                # will be closing soon if it isn't in the expected state.
-                wait_for_close = True
-                raise_close_exc = True
-
-        # To avoid a deadlock, release the connection lock by exiting the
-        # context manager before waiting for recv_events() to terminate.
-
-        # If the connection is expected to close soon and the close timeout
-        # elapses, close the socket to terminate the connection.
-        if wait_for_close:
-            if self.close_deadline is None:
-                timeout = self.close_timeout
-            else:
-                # Thread.join() returns immediately if timeout is negative.
-                timeout = self.close_deadline.timeout(raise_if_elapsed=False)
-            self.recv_events_thread.join(timeout)
-
-            if self.recv_events_thread.is_alive():
-                # There's no risk to overwrite another error because
-                # original_exc is never set when wait_for_close is True.
-                assert original_exc is None
-                original_exc = TimeoutError("timed out while closing connection")
-                # Set recv_exc before closing the socket in order to get
-                # proper exception reporting.
-                raise_close_exc = True
-                with self.protocol_mutex:
-                    self.set_recv_exc(original_exc)
-
-        # If an error occurred, close the socket to terminate the connection and
-        # raise an exception.
-        if raise_close_exc:
-            self.close_socket()
-            self.recv_events_thread.join()
-            raise self.protocol.close_exc from original_exc
-
-    def send_data(self) -> None:
-        """
-        Send outgoing data.
-
-        This method requires holding protocol_mutex.
-
-        Raises:
-            OSError: When a socket operations fails.
-
-        """
-        assert self.protocol_mutex.locked()
-        for data in self.protocol.data_to_send():
-            if data:
-                if self.close_deadline is not None:
-                    self.socket.settimeout(self.close_deadline.timeout())
-                self.socket.sendall(data)
-            else:
-                try:
-                    self.socket.shutdown(socket.SHUT_WR)
-                except OSError:  # socket already closed
-                    pass
-
-    def set_recv_exc(self, exc: BaseException | None) -> None:
-        """
-        Set recv_exc, if not set yet.
-
-        This method requires holding protocol_mutex.
-
-        """
-        assert self.protocol_mutex.locked()
-        if self.recv_exc is None:  # pragma: no branch
-            self.recv_exc = exc
-
-    def close_socket(self) -> None:
-        """
-        Shutdown and close socket. Close message assembler.
-
-        Calling close_socket() guarantees that recv_events() terminates. Indeed,
-        recv_events() may block only on socket.recv() or on recv_messages.put().
-
-        """
-        # shutdown() is required to interrupt recv() on Linux.
-        try:
-            self.socket.shutdown(socket.SHUT_RDWR)
-        except OSError:
-            pass  # socket is already closed
-        self.socket.close()
-        self.recv_messages.close()

plugins/gtksourceview/lsp_manager/websockets/sync/messages.py

@@ -1,283 +0,0 @@
-from __future__ import annotations
-
-import codecs
-import queue
-import threading
-from typing import Iterator, cast
-
-from ..exceptions import ConcurrencyError
-from ..frames import OP_BINARY, OP_CONT, OP_TEXT, Frame
-from ..typing import Data
-
-
-__all__ = ["Assembler"]
-
-UTF8Decoder = codecs.getincrementaldecoder("utf-8")
-
-
-class Assembler:
-    """
-    Assemble messages from frames.
-
-    """
-
-    def __init__(self) -> None:
-        # Serialize reads and writes -- except for reads via synchronization
-        # primitives provided by the threading and queue modules.
-        self.mutex = threading.Lock()
-
-        # We create a latch with two events to synchronize the production of
-        # frames and the consumption of messages (or frames) without a buffer.
-        # This design requires a switch between the library thread and the user
-        # thread for each message; that shouldn't be a performance bottleneck.
-
-        # put() sets this event to tell get() that a message can be fetched.
-        self.message_complete = threading.Event()
-        # get() sets this event to let put() that the message was fetched.
-        self.message_fetched = threading.Event()
-
-        # This flag prevents concurrent calls to get() by user code.
-        self.get_in_progress = False
-        # This flag prevents concurrent calls to put() by library code.
-        self.put_in_progress = False
-
-        # Decoder for text frames, None for binary frames.
-        self.decoder: codecs.IncrementalDecoder | None = None
-
-        # Buffer of frames belonging to the same message.
-        self.chunks: list[Data] = []
-
-        # When switching from "buffering" to "streaming", we use a thread-safe
-        # queue for transferring frames from the writing thread (library code)
-        # to the reading thread (user code). We're buffering when chunks_queue
-        # is None and streaming when it's a SimpleQueue. None is a sentinel
-        # value marking the end of the message, superseding message_complete.
-
-        # Stream data from frames belonging to the same message.
-        self.chunks_queue: queue.SimpleQueue[Data | None] | None = None
-
-        # This flag marks the end of the connection.
-        self.closed = False
-
-    def get(self, timeout: float | None = None) -> Data:
-        """
-        Read the next message.
-
-        :meth:`get` returns a single :class:`str` or :class:`bytes`.
-
-        If the message is fragmented, :meth:`get` waits until the last frame is
-        received, then it reassembles the message and returns it. To receive
-        messages frame by frame, use :meth:`get_iter` instead.
-
-        Args:
-            timeout: If a timeout is provided and elapses before a complete
-                message is received, :meth:`get` raises :exc:`TimeoutError`.
-
-        Raises:
-            EOFError: If the stream of frames has ended.
-            ConcurrencyError: If two threads run :meth:`get` or :meth:`get_iter`
-                concurrently.
-            TimeoutError: If a timeout is provided and elapses before a
-                complete message is received.
-
-        """
-        with self.mutex:
-            if self.closed:
-                raise EOFError("stream of frames ended")
-
-            if self.get_in_progress:
-                raise ConcurrencyError("get() or get_iter() is already running")
-
-            self.get_in_progress = True
-
-        # If the message_complete event isn't set yet, release the lock to
-        # allow put() to run and eventually set it.
-        # Locking with get_in_progress ensures only one thread can get here.
-        completed = self.message_complete.wait(timeout)
-
-        with self.mutex:
-            self.get_in_progress = False
-
-            # Waiting for a complete message timed out.
-            if not completed:
-                raise TimeoutError(f"timed out in {timeout:.1f}s")
-
-            # get() was unblocked by close() rather than put().
-            if self.closed:
-                raise EOFError("stream of frames ended")
-
-            assert self.message_complete.is_set()
-            self.message_complete.clear()
-
-            joiner: Data = b"" if self.decoder is None else ""
-            # mypy cannot figure out that chunks have the proper type.
-            message: Data = joiner.join(self.chunks)  # type: ignore
-
-            self.chunks = []
-            assert self.chunks_queue is None
-
-            assert not self.message_fetched.is_set()
-            self.message_fetched.set()
-
-            return message
-
-    def get_iter(self) -> Iterator[Data]:
-        """
-        Stream the next message.
-
-        Iterating the return value of :meth:`get_iter` yields a :class:`str` or
-        :class:`bytes` for each frame in the message.
-
-        The iterator must be fully consumed before calling :meth:`get_iter` or
-        :meth:`get` again. Else, :exc:`ConcurrencyError` is raised.
-
-        This method only makes sense for fragmented messages. If messages aren't
-        fragmented, use :meth:`get` instead.
-
-        Raises:
-            EOFError: If the stream of frames has ended.
-            ConcurrencyError: If two threads run :meth:`get` or :meth:`get_iter`
-                concurrently.
-
-        """
-        with self.mutex:
-            if self.closed:
-                raise EOFError("stream of frames ended")
-
-            if self.get_in_progress:
-                raise ConcurrencyError("get() or get_iter() is already running")
-
-            chunks = self.chunks
-            self.chunks = []
-            self.chunks_queue = cast(
-                # Remove quotes around type when dropping Python < 3.9.
-                "queue.SimpleQueue[Data | None]",
-                queue.SimpleQueue(),
-            )
-
-            # Sending None in chunk_queue supersedes setting message_complete
-            # when switching to "streaming". If message is already complete
-            # when the switch happens, put() didn't send None, so we have to.
-            if self.message_complete.is_set():
-                self.chunks_queue.put(None)
-
-            self.get_in_progress = True
-
-        # Locking with get_in_progress ensures only one thread can get here.
-        chunk: Data | None
-        for chunk in chunks:
-            yield chunk
-        while (chunk := self.chunks_queue.get()) is not None:
-            yield chunk
-
-        with self.mutex:
-            self.get_in_progress = False
-
-            # get_iter() was unblocked by close() rather than put().
-            if self.closed:
-                raise EOFError("stream of frames ended")
-
-            assert self.message_complete.is_set()
-            self.message_complete.clear()
-
-            assert self.chunks == []
-            self.chunks_queue = None
-
-            assert not self.message_fetched.is_set()
-            self.message_fetched.set()
-
-    def put(self, frame: Frame) -> None:
-        """
-        Add ``frame`` to the next message.
-
-        When ``frame`` is the final frame in a message, :meth:`put` waits until
-        the message is fetched, which can be achieved by calling :meth:`get` or
-        by fully consuming the return value of :meth:`get_iter`.
-
-        :meth:`put` assumes that the stream of frames respects the protocol. If
-        it doesn't, the behavior is undefined.
-
-        Raises:
-            EOFError: If the stream of frames has ended.
-            ConcurrencyError: If two threads run :meth:`put` concurrently.
-
-        """
-        with self.mutex:
-            if self.closed:
-                raise EOFError("stream of frames ended")
-
-            if self.put_in_progress:
-                raise ConcurrencyError("put is already running")
-
-            if frame.opcode is OP_TEXT:
-                self.decoder = UTF8Decoder(errors="strict")
-            elif frame.opcode is OP_BINARY:
-                self.decoder = None
-            else:
-                assert frame.opcode is OP_CONT
-
-            data: Data
-            if self.decoder is not None:
-                data = self.decoder.decode(frame.data, frame.fin)
-            else:
-                data = frame.data
-
-            if self.chunks_queue is None:
-                self.chunks.append(data)
-            else:
-                self.chunks_queue.put(data)
-
-            if not frame.fin:
-                return
-
-            # Message is complete. Wait until it's fetched to return.
-
-            assert not self.message_complete.is_set()
-            self.message_complete.set()
-
-            if self.chunks_queue is not None:
-                self.chunks_queue.put(None)
-
-            assert not self.message_fetched.is_set()
-
-            self.put_in_progress = True
-
-        # Release the lock to allow get() to run and eventually set the event.
-        # Locking with put_in_progress ensures only one coroutine can get here.
-        self.message_fetched.wait()
-
-        with self.mutex:
-            self.put_in_progress = False
-
-            # put() was unblocked by close() rather than get() or get_iter().
-            if self.closed:
-                raise EOFError("stream of frames ended")
-
-            assert self.message_fetched.is_set()
-            self.message_fetched.clear()
-
-            self.decoder = None
-
-    def close(self) -> None:
-        """
-        End the stream of frames.
-
-        Callling :meth:`close` concurrently with :meth:`get`, :meth:`get_iter`,
-        or :meth:`put` is safe. They will raise :exc:`EOFError`.
-
-        """
-        with self.mutex:
-            if self.closed:
-                return
-
-            self.closed = True
-
-            # Unblock get or get_iter.
-            if self.get_in_progress:
-                self.message_complete.set()
-                if self.chunks_queue is not None:
-                    self.chunks_queue.put(None)
-
-            # Unblock put().
-            if self.put_in_progress:
-                self.message_fetched.set()

plugins/gtksourceview/lsp_manager/websockets/sync/server.py

@@ -1,727 +0,0 @@
-from __future__ import annotations
-
-import hmac
-import http
-import logging
-import os
-import selectors
-import socket
-import ssl as ssl_module
-import sys
-import threading
-import warnings
-from types import TracebackType
-from typing import Any, Callable, Iterable, Sequence, Tuple, cast
-
-from ..exceptions import InvalidHeader
-from ..extensions.base import ServerExtensionFactory
-from ..extensions.permessage_deflate import enable_server_permessage_deflate
-from ..frames import CloseCode
-from ..headers import (
-    build_www_authenticate_basic,
-    parse_authorization_basic,
-    validate_subprotocols,
-)
-from ..http11 import SERVER, Request, Response
-from ..protocol import CONNECTING, OPEN, Event
-from ..server import ServerProtocol
-from ..typing import LoggerLike, Origin, StatusLike, Subprotocol
-from .connection import Connection
-from .utils import Deadline
-
-
-__all__ = ["serve", "unix_serve", "ServerConnection", "Server", "basic_auth"]
-
-
-class ServerConnection(Connection):
-    """
-    :mod:`threading` implementation of a WebSocket server connection.
-
-    :class:`ServerConnection` 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.
-
-    Args:
-        socket: Socket connected to a WebSocket client.
-        protocol: Sans-I/O connection.
-        close_timeout: Timeout for closing the connection in seconds.
-
-    """
-
-    def __init__(
-        self,
-        socket: socket.socket,
-        protocol: ServerProtocol,
-        *,
-        close_timeout: float | None = 10,
-    ) -> None:
-        self.protocol: ServerProtocol
-        self.request_rcvd = threading.Event()
-        super().__init__(
-            socket,
-            protocol,
-            close_timeout=close_timeout,
-        )
-        self.username: str  # see basic_auth()
-
-    def respond(self, status: StatusLike, text: str) -> Response:
-        """
-        Create a plain text HTTP response.
-
-        ``process_request`` and ``process_response`` may call this method to
-        return an HTTP response instead of performing the WebSocket opening
-        handshake.
-
-        You can modify the response before returning it, for example by changing
-        HTTP headers.
-
-        Args:
-            status: HTTP status code.
-            text: HTTP response body; it will be encoded to UTF-8.
-
-        Returns:
-            HTTP response to send to the client.
-
-        """
-        return self.protocol.reject(status, text)
-
-    def handshake(
-        self,
-        process_request: (
-            Callable[
-                [ServerConnection, Request],
-                Response | None,
-            ]
-            | None
-        ) = None,
-        process_response: (
-            Callable[
-                [ServerConnection, Request, Response],
-                Response | None,
-            ]
-            | None
-        ) = None,
-        server_header: str | None = SERVER,
-        timeout: float | None = None,
-    ) -> None:
-        """
-        Perform the opening handshake.
-
-        """
-        if not self.request_rcvd.wait(timeout):
-            raise TimeoutError("timed out during handshake")
-
-        if self.request is not None:
-            with self.send_context(expected_state=CONNECTING):
-                response = None
-
-                if process_request is not None:
-                    try:
-                        response = process_request(self, self.request)
-                    except Exception as exc:
-                        self.protocol.handshake_exc = exc
-                        response = self.protocol.reject(
-                            http.HTTPStatus.INTERNAL_SERVER_ERROR,
-                            (
-                                "Failed to open a WebSocket connection.\n"
-                                "See server log for more information.\n"
-                            ),
-                        )
-
-                if response is None:
-                    self.response = self.protocol.accept(self.request)
-                else:
-                    self.response = response
-
-                if server_header:
-                    self.response.headers["Server"] = server_header
-
-                response = None
-
-                if process_response is not None:
-                    try:
-                        response = process_response(self, self.request, self.response)
-                    except Exception as exc:
-                        self.protocol.handshake_exc = exc
-                        response = self.protocol.reject(
-                            http.HTTPStatus.INTERNAL_SERVER_ERROR,
-                            (
-                                "Failed to open a WebSocket connection.\n"
-                                "See server log for more information.\n"
-                            ),
-                        )
-
-                    if response is not None:
-                        self.response = response
-
-                self.protocol.send_response(self.response)
-
-        # self.protocol.handshake_exc is always set when the connection is lost
-        # before receiving a request, when the request cannot be parsed, when
-        # the handshake encounters an error, or when process_request or
-        # process_response sends a HTTP response that rejects 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 request.
-        if self.request is None:
-            assert isinstance(event, Request)
-            self.request = event
-            self.request_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.request_rcvd.set()
-
-
-class Server:
-    """
-    WebSocket server returned by :func:`serve`.
-
-    This class mirrors the API of :class:`~socketserver.BaseServer`, notably the
-    :meth:`~socketserver.BaseServer.serve_forever` and
-    :meth:`~socketserver.BaseServer.shutdown` methods, as well as the context
-    manager protocol.
-
-    Args:
-        socket: Server socket listening for new connections.
-        handler: Handler for one connection. Receives the socket and address
-            returned by :meth:`~socket.socket.accept`.
-        logger: Logger for this server.
-            It defaults to ``logging.getLogger("websockets.server")``.
-            See the :doc:`logging guide <../../topics/logging>` for details.
-
-    """
-
-    def __init__(
-        self,
-        socket: socket.socket,
-        handler: Callable[[socket.socket, Any], None],
-        logger: LoggerLike | None = None,
-    ) -> None:
-        self.socket = socket
-        self.handler = handler
-        if logger is None:
-            logger = logging.getLogger("websockets.server")
-        self.logger = logger
-        if sys.platform != "win32":
-            self.shutdown_watcher, self.shutdown_notifier = os.pipe()
-
-    def serve_forever(self) -> None:
-        """
-        See :meth:`socketserver.BaseServer.serve_forever`.
-
-        This method doesn't return. Calling :meth:`shutdown` from another thread
-        stops the server.
-
-        Typical use::
-
-            with serve(...) as server:
-                server.serve_forever()
-
-        """
-        poller = selectors.DefaultSelector()
-        try:
-            poller.register(self.socket, selectors.EVENT_READ)
-        except ValueError:  # pragma: no cover
-            # If shutdown() is called before poller.register(),
-            # the socket is closed and poller.register() raises
-            # ValueError: Invalid file descriptor: -1
-            return
-        if sys.platform != "win32":
-            poller.register(self.shutdown_watcher, selectors.EVENT_READ)
-
-        while True:
-            poller.select()
-            try:
-                # If the socket is closed, this will raise an exception and exit
-                # the loop. So we don't need to check the return value of select().
-                sock, addr = self.socket.accept()
-            except OSError:
-                break
-            # Since there isn't a mechanism for tracking connections and waiting
-            # for them to terminate, we cannot use daemon threads, or else all
-            # connections would be terminate brutally when closing the server.
-            thread = threading.Thread(target=self.handler, args=(sock, addr))
-            thread.start()
-
-    def shutdown(self) -> None:
-        """
-        See :meth:`socketserver.BaseServer.shutdown`.
-
-        """
-        self.socket.close()
-        if sys.platform != "win32":
-            os.write(self.shutdown_notifier, b"x")
-
-    def fileno(self) -> int:
-        """
-        See :meth:`socketserver.BaseServer.fileno`.
-
-        """
-        return self.socket.fileno()
-
-    def __enter__(self) -> Server:
-        return self
-
-    def __exit__(
-        self,
-        exc_type: type[BaseException] | None,
-        exc_value: BaseException | None,
-        traceback: TracebackType | None,
-    ) -> None:
-        self.shutdown()
-
-
-def __getattr__(name: str) -> Any:
-    if name == "WebSocketServer":
-        warnings.warn(  # deprecated in 13.0 - 2024-08-20
-            "WebSocketServer was renamed to Server",
-            DeprecationWarning,
-        )
-        return Server
-    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
-
-
-def serve(
-    handler: Callable[[ServerConnection], None],
-    host: str | None = None,
-    port: int | None = None,
-    *,
-    # TCP/TLS
-    sock: socket.socket | None = None,
-    ssl: ssl_module.SSLContext | None = None,
-    # WebSocket
-    origins: Sequence[Origin | None] | None = None,
-    extensions: Sequence[ServerExtensionFactory] | None = None,
-    subprotocols: Sequence[Subprotocol] | None = None,
-    select_subprotocol: (
-        Callable[
-            [ServerConnection, Sequence[Subprotocol]],
-            Subprotocol | None,
-        ]
-        | None
-    ) = None,
-    process_request: (
-        Callable[
-            [ServerConnection, Request],
-            Response | None,
-        ]
-        | None
-    ) = None,
-    process_response: (
-        Callable[
-            [ServerConnection, Request, Response],
-            Response | None,
-        ]
-        | None
-    ) = None,
-    server_header: str | None = SERVER,
-    compression: str | None = "deflate",
-    # Timeouts
-    open_timeout: float | None = 10,
-    close_timeout: float | None = 10,
-    # Limits
-    max_size: int | None = 2**20,
-    # Logging
-    logger: LoggerLike | None = None,
-    # Escape hatch for advanced customization
-    create_connection: type[ServerConnection] | None = None,
-    **kwargs: Any,
-) -> Server:
-    """
-    Create a WebSocket server listening on ``host`` and ``port``.
-
-    Whenever a client connects, the server creates a :class:`ServerConnection`,
-    performs the opening handshake, and delegates to the ``handler``.
-
-    The handler receives the :class:`ServerConnection` instance, which you can
-    use to send and receive messages.
-
-    Once the handler completes, either normally or with an exception, the server
-    performs the closing handshake and closes the connection.
-
-    This function returns a :class:`Server` whose API mirrors
-    :class:`~socketserver.BaseServer`. Treat it as a context manager to ensure
-    that it will be closed and call :meth:`~Server.serve_forever` to serve
-    requests::
-
-        from websockets.sync.server import serve
-
-        def handler(websocket):
-            ...
-
-        with serve(handler, ...) as server:
-            server.serve_forever()
-
-    Args:
-        handler: Connection handler. It receives the WebSocket connection,
-            which is a :class:`ServerConnection`, in argument.
-        host: Network interfaces the server binds to.
-            See :func:`~socket.create_server` for details.
-        port: TCP port the server listens on.
-            See :func:`~socket.create_server` for details.
-        sock: Preexisting TCP socket. ``sock`` replaces ``host`` and ``port``.
-            You may call :func:`socket.create_server` to create a suitable TCP
-            socket.
-        ssl: Configuration for enabling TLS on the connection.
-        origins: Acceptable values of the ``Origin`` header, for defending
-            against Cross-Site WebSocket Hijacking attacks. Include :obj:`None`
-            in the list if the lack of an origin is acceptable.
-        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.
-        select_subprotocol: Callback for selecting a subprotocol among
-            those supported by the client and the server. It receives a
-            :class:`ServerConnection` (not a
-            :class:`~websockets.server.ServerProtocol`!) instance and a list of
-            subprotocols offered by the client. Other than the first argument,
-            it has the same behavior as the
-            :meth:`ServerProtocol.select_subprotocol
-            <websockets.server.ServerProtocol.select_subprotocol>` method.
-        process_request: Intercept the request during the opening handshake.
-            Return an HTTP response to force the response. Return :obj:`None` to
-            continue normally. When you force an HTTP 101 Continue response, the
-            handshake is successful. Else, the connection is aborted.
-        process_response: Intercept the response during the opening handshake.
-            Modify the response or return a new HTTP response to force the
-            response. Return :obj:`None` to continue normally. When you force an
-            HTTP 101 Continue response, the handshake is successful. Else, the
-            connection is aborted.
-        server_header: Value of  the ``Server`` response header.
-            It defaults to ``"Python/x.y.z websockets/X.Y"``. Setting it to
-            :obj:`None` removes the header.
-        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.
-        open_timeout: Timeout for opening connections in seconds.
-            :obj:`None` disables the timeout.
-        close_timeout: Timeout for closing connections in seconds.
-            :obj:`None` disables the timeout.
-        max_size: Maximum size of incoming messages in bytes.
-            :obj:`None` disables the limit.
-        logger: Logger for this server.
-            It defaults to ``logging.getLogger("websockets.server")``. See the
-            :doc:`logging guide <../../topics/logging>` for details.
-        create_connection: Factory for the :class:`ServerConnection` 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_server`.
-
-    """
-
-    # 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,
-        )
-
-    if subprotocols is not None:
-        validate_subprotocols(subprotocols)
-
-    if compression == "deflate":
-        extensions = enable_server_permessage_deflate(extensions)
-    elif compression is not None:
-        raise ValueError(f"unsupported compression: {compression}")
-
-    if create_connection is None:
-        create_connection = ServerConnection
-
-    # Bind socket and listen
-
-    # Private APIs for unix_connect()
-    unix: bool = kwargs.pop("unix", False)
-    path: str | None = kwargs.pop("path", None)
-
-    if sock is None:
-        if unix:
-            if path is None:
-                raise TypeError("missing path argument")
-            kwargs.setdefault("family", socket.AF_UNIX)
-            sock = socket.create_server(path, **kwargs)
-        else:
-            sock = socket.create_server((host, port), **kwargs)
-    else:
-        if path is not None:
-            raise TypeError("path and sock arguments are incompatible")
-
-    # Initialize TLS wrapper
-
-    if ssl is not None:
-        sock = ssl.wrap_socket(
-            sock,
-            server_side=True,
-            # Delay TLS handshake until after we set a timeout on the socket.
-            do_handshake_on_connect=False,
-        )
-
-    # Define request handler
-
-    def conn_handler(sock: socket.socket, addr: Any) -> None:
-        # Calculate timeouts on the TLS and WebSocket handshakes.
-        # The TLS timeout must be set on the socket, then removed
-        # to avoid conflicting with the WebSocket timeout in handshake().
-        deadline = Deadline(open_timeout)
-
-        try:
-            # Disable Nagle algorithm
-
-            if not unix:
-                sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True)
-
-            # Perform TLS handshake
-
-            if ssl is not None:
-                sock.settimeout(deadline.timeout())
-                # mypy cannot figure this out
-                assert isinstance(sock, ssl_module.SSLSocket)
-                sock.do_handshake()
-                sock.settimeout(None)
-
-            # Create a closure to give select_subprotocol access to connection.
-            protocol_select_subprotocol: (
-                Callable[
-                    [ServerProtocol, Sequence[Subprotocol]],
-                    Subprotocol | None,
-                ]
-                | None
-            ) = None
-            if select_subprotocol is not None:
-
-                def protocol_select_subprotocol(
-                    protocol: ServerProtocol,
-                    subprotocols: Sequence[Subprotocol],
-                ) -> Subprotocol | None:
-                    # mypy doesn't know that select_subprotocol is immutable.
-                    assert select_subprotocol is not None
-                    # Ensure this function is only used in the intended context.
-                    assert protocol is connection.protocol
-                    return select_subprotocol(connection, subprotocols)
-
-            # Initialize WebSocket protocol
-
-            protocol = ServerProtocol(
-                origins=origins,
-                extensions=extensions,
-                subprotocols=subprotocols,
-                select_subprotocol=protocol_select_subprotocol,
-                max_size=max_size,
-                logger=logger,
-            )
-
-            # Initialize WebSocket connection
-
-            assert create_connection is not None  # help mypy
-            connection = create_connection(
-                sock,
-                protocol,
-                close_timeout=close_timeout,
-            )
-        except Exception:
-            sock.close()
-            return
-
-        try:
-            try:
-                connection.handshake(
-                    process_request,
-                    process_response,
-                    server_header,
-                    deadline.timeout(),
-                )
-            except TimeoutError:
-                connection.close_socket()
-                connection.recv_events_thread.join()
-                return
-            except Exception:
-                connection.logger.error("opening handshake failed", exc_info=True)
-                connection.close_socket()
-                connection.recv_events_thread.join()
-                return
-
-            assert connection.protocol.state is OPEN
-            try:
-                handler(connection)
-            except Exception:
-                connection.logger.error("connection handler failed", exc_info=True)
-                connection.close(CloseCode.INTERNAL_ERROR)
-            else:
-                connection.close()
-
-        except Exception:  # pragma: no cover
-            # Don't leak sockets on unexpected errors.
-            sock.close()
-
-    # Initialize server
-
-    return Server(sock, conn_handler, logger)
-
-
-def unix_serve(
-    handler: Callable[[ServerConnection], None],
-    path: str | None = None,
-    **kwargs: Any,
-) -> Server:
-    """
-    Create a WebSocket server listening on a Unix socket.
-
-    This function accepts the same keyword arguments as :func:`serve`.
-
-    It's only available on Unix.
-
-    It's useful for deploying a server behind a reverse proxy such as nginx.
-
-    Args:
-        handler: Connection handler. It receives the WebSocket connection,
-            which is a :class:`ServerConnection`, in argument.
-        path: File system path to the Unix socket.
-
-    """
-    return serve(handler, unix=True, path=path, **kwargs)
-
-
-def is_credentials(credentials: Any) -> bool:
-    try:
-        username, password = credentials
-    except (TypeError, ValueError):
-        return False
-    else:
-        return isinstance(username, str) and isinstance(password, str)
-
-
-def basic_auth(
-    realm: str = "",
-    credentials: tuple[str, str] | Iterable[tuple[str, str]] | None = None,
-    check_credentials: Callable[[str, str], bool] | None = None,
-) -> Callable[[ServerConnection, Request], Response | None]:
-    """
-    Factory for ``process_request`` to enforce HTTP Basic Authentication.
-
-    :func:`basic_auth` is designed to integrate with :func:`serve` as follows::
-
-        from websockets.sync.server import basic_auth, serve
-
-        with serve(
-            ...,
-            process_request=basic_auth(
-                realm="my dev server",
-                credentials=("hello", "iloveyou"),
-            ),
-        ):
-
-    If authentication succeeds, the connection's ``username`` attribute is set.
-    If it fails, the server responds with an HTTP 401 Unauthorized status.
-
-    One of ``credentials`` or ``check_credentials`` must be provided; not both.
-
-    Args:
-        realm: Scope of protection. It should contain only ASCII characters
-            because the encoding of non-ASCII characters is undefined. Refer to
-            section 2.2 of :rfc:`7235` for details.
-        credentials: Hard coded authorized credentials. It can be a
-            ``(username, password)`` pair or a list of such pairs.
-        check_credentials: Function that verifies credentials.
-            It receives ``username`` and ``password`` arguments and returns
-            whether they're valid.
-    Raises:
-        TypeError: If ``credentials`` or ``check_credentials`` is wrong.
-
-    """
-    if (credentials is None) == (check_credentials is None):
-        raise TypeError("provide either credentials or check_credentials")
-
-    if credentials is not None:
-        if is_credentials(credentials):
-            credentials_list = [cast(Tuple[str, str], credentials)]
-        elif isinstance(credentials, Iterable):
-            credentials_list = list(cast(Iterable[Tuple[str, str]], credentials))
-            if not all(is_credentials(item) for item in credentials_list):
-                raise TypeError(f"invalid credentials argument: {credentials}")
-        else:
-            raise TypeError(f"invalid credentials argument: {credentials}")
-
-        credentials_dict = dict(credentials_list)
-
-        def check_credentials(username: str, password: str) -> bool:
-            try:
-                expected_password = credentials_dict[username]
-            except KeyError:
-                return False
-            return hmac.compare_digest(expected_password, password)
-
-    assert check_credentials is not None  # help mypy
-
-    def process_request(
-        connection: ServerConnection,
-        request: Request,
-    ) -> Response | None:
-        """
-        Perform HTTP Basic Authentication.
-
-        If it succeeds, set the connection's ``username`` attribute and return
-        :obj:`None`. If it fails, return an HTTP 401 Unauthorized responss.
-
-        """
-        try:
-            authorization = request.headers["Authorization"]
-        except KeyError:
-            response = connection.respond(
-                http.HTTPStatus.UNAUTHORIZED,
-                "Missing credentials\n",
-            )
-            response.headers["WWW-Authenticate"] = build_www_authenticate_basic(realm)
-            return response
-
-        try:
-            username, password = parse_authorization_basic(authorization)
-        except InvalidHeader:
-            response = connection.respond(
-                http.HTTPStatus.UNAUTHORIZED,
-                "Unsupported credentials\n",
-            )
-            response.headers["WWW-Authenticate"] = build_www_authenticate_basic(realm)
-            return response
-
-        if not check_credentials(username, password):
-            response = connection.respond(
-                http.HTTPStatus.UNAUTHORIZED,
-                "Invalid credentials\n",
-            )
-            response.headers["WWW-Authenticate"] = build_www_authenticate_basic(realm)
-            return response
-
-        connection.username = username
-        return None
-
-    return process_request

plugins/gtksourceview/lsp_manager/websockets/sync/utils.py

@@ -1,45 +0,0 @@
-from __future__ import annotations
-
-import time
-
-
-__all__ = ["Deadline"]
-
-
-class Deadline:
-    """
-    Manage timeouts across multiple steps.
-
-    Args:
-        timeout: Time available in seconds or :obj:`None` if there is no limit.
-
-    """
-
-    def __init__(self, timeout: float | None) -> None:
-        self.deadline: float | None
-        if timeout is None:
-            self.deadline = None
-        else:
-            self.deadline = time.monotonic() + timeout
-
-    def timeout(self, *, raise_if_elapsed: bool = True) -> float | None:
-        """
-        Calculate a timeout from a deadline.
-
-        Args:
-            raise_if_elapsed: Whether to raise :exc:`TimeoutError`
-                if the deadline lapsed.
-
-        Raises:
-            TimeoutError: If the deadline lapsed.
-
-        Returns:
-            Time left in seconds or :obj:`None` if there is no limit.
-
-        """
-        if self.deadline is None:
-            return None
-        timeout = self.deadline - time.monotonic()
-        if raise_if_elapsed and timeout <= 0:
-            raise TimeoutError("timed out")
-        return timeout

plugins/gtksourceview/lsp_manager/websockets/typing.py

@@ -1,77 +0,0 @@
-from __future__ import annotations
-
-import http
-import logging
-import typing
-from typing import Any, List, NewType, Optional, Tuple, Union
-
-
-__all__ = [
-    "Data",
-    "LoggerLike",
-    "StatusLike",
-    "Origin",
-    "Subprotocol",
-    "ExtensionName",
-    "ExtensionParameter",
-]
-
-
-# Public types used in the signature of public APIs
-
-# Change to str | bytes when dropping Python < 3.10.
-Data = Union[str, bytes]
-"""Types supported in a WebSocket message:
-:class:`str` for a Text_ frame, :class:`bytes` for a Binary_.
-
-.. _Text: https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-.. _Binary : https://datatracker.ietf.org/doc/html/rfc6455#section-5.6
-
-"""
-
-
-# Change to logging.Logger | ... when dropping Python < 3.10.
-if typing.TYPE_CHECKING:
-    LoggerLike = Union[logging.Logger, logging.LoggerAdapter[Any]]
-    """Types accepted where a :class:`~logging.Logger` is expected."""
-else:  # remove this branch when dropping support for Python < 3.11
-    LoggerLike = Union[logging.Logger, logging.LoggerAdapter]
-    """Types accepted where a :class:`~logging.Logger` is expected."""
-
-
-# Change to http.HTTPStatus | int when dropping Python < 3.10.
-StatusLike = Union[http.HTTPStatus, int]
-"""
-Types accepted where an :class:`~http.HTTPStatus` is expected."""
-
-
-Origin = NewType("Origin", str)
-"""Value of a ``Origin`` header."""
-
-
-Subprotocol = NewType("Subprotocol", str)
-"""Subprotocol in a ``Sec-WebSocket-Protocol`` header."""
-
-
-ExtensionName = NewType("ExtensionName", str)
-"""Name of a WebSocket extension."""
-
-# Change to tuple[str, Optional[str]] when dropping Python < 3.9.
-# Change to tuple[str, str | None] when dropping Python < 3.10.
-ExtensionParameter = Tuple[str, Optional[str]]
-"""Parameter of a WebSocket extension."""
-
-
-# Private types
-
-# Change to tuple[.., list[...]] when dropping Python < 3.9.
-ExtensionHeader = Tuple[ExtensionName, List[ExtensionParameter]]
-"""Extension in a ``Sec-WebSocket-Extensions`` header."""
-
-
-ConnectionOption = NewType("ConnectionOption", str)
-"""Connection option in a ``Connection`` header."""
-
-
-UpgradeProtocol = NewType("UpgradeProtocol", str)
-"""Upgrade protocol in an ``Upgrade`` header."""

plugins/gtksourceview/lsp_manager/websockets/uri.py

@@ -1,107 +0,0 @@
-from __future__ import annotations
-
-import dataclasses
-import urllib.parse
-
-from .exceptions import InvalidURI
-
-
-__all__ = ["parse_uri", "WebSocketURI"]
-
-
-@dataclasses.dataclass
-class WebSocketURI:
-    """
-    WebSocket URI.
-
-    Attributes:
-        secure: :obj:`True` for a ``wss`` URI, :obj:`False` for a ``ws`` URI.
-        host: Normalized to lower case.
-        port: Always set even if it's the default.
-        path: May be empty.
-        query: May be empty if the URI doesn't include a query component.
-        username: Available when the URI contains `User Information`_.
-        password: Available when the URI contains `User Information`_.
-
-    .. _User Information: https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.1
-
-    """
-
-    secure: bool
-    host: str
-    port: int
-    path: str
-    query: str
-    username: str | None = None
-    password: str | None = None
-
-    @property
-    def resource_name(self) -> str:
-        if self.path:
-            resource_name = self.path
-        else:
-            resource_name = "/"
-        if self.query:
-            resource_name += "?" + self.query
-        return resource_name
-
-    @property
-    def user_info(self) -> tuple[str, str] | None:
-        if self.username is None:
-            return None
-        assert self.password is not None
-        return (self.username, self.password)
-
-
-# All characters from the gen-delims and sub-delims sets in RFC 3987.
-DELIMS = ":/?#[]@!$&'()*+,;="
-
-
-def parse_uri(uri: str) -> WebSocketURI:
-    """
-    Parse and validate a WebSocket URI.
-
-    Args:
-        uri: WebSocket URI.
-
-    Returns:
-        Parsed WebSocket URI.
-
-    Raises:
-        InvalidURI: If ``uri`` isn't a valid WebSocket URI.
-
-    """
-    parsed = urllib.parse.urlparse(uri)
-    if parsed.scheme not in ["ws", "wss"]:
-        raise InvalidURI(uri, "scheme isn't ws or wss")
-    if parsed.hostname is None:
-        raise InvalidURI(uri, "hostname isn't provided")
-    if parsed.fragment != "":
-        raise InvalidURI(uri, "fragment identifier is meaningless")
-
-    secure = parsed.scheme == "wss"
-    host = parsed.hostname
-    port = parsed.port or (443 if secure else 80)
-    path = parsed.path
-    query = parsed.query
-    username = parsed.username
-    password = parsed.password
-    # urllib.parse.urlparse accepts URLs with a username but without a
-    # password. This doesn't make sense for HTTP Basic Auth credentials.
-    if username is not None and password is None:
-        raise InvalidURI(uri, "username provided without password")
-
-    try:
-        uri.encode("ascii")
-    except UnicodeEncodeError:
-        # Input contains non-ASCII characters.
-        # It must be an IRI. Convert it to a URI.
-        host = host.encode("idna").decode()
-        path = urllib.parse.quote(path, safe=DELIMS)
-        query = urllib.parse.quote(query, safe=DELIMS)
-        if username is not None:
-            assert password is not None
-            username = urllib.parse.quote(username, safe=DELIMS)
-            password = urllib.parse.quote(password, safe=DELIMS)
-
-    return WebSocketURI(secure, host, port, path, query, username, password)

plugins/gtksourceview/lsp_manager/websockets/utils.py

@@ -1,51 +0,0 @@
-from __future__ import annotations
-
-import base64
-import hashlib
-import secrets
-import sys
-
-
-__all__ = ["accept_key", "apply_mask"]
-
-
-GUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
-
-
-def generate_key() -> str:
-    """
-    Generate a random key for the Sec-WebSocket-Key header.
-
-    """
-    key = secrets.token_bytes(16)
-    return base64.b64encode(key).decode()
-
-
-def accept_key(key: str) -> str:
-    """
-    Compute the value of the Sec-WebSocket-Accept header.
-
-    Args:
-        key: Value of the Sec-WebSocket-Key header.
-
-    """
-    sha1 = hashlib.sha1((key + GUID).encode()).digest()
-    return base64.b64encode(sha1).decode()
-
-
-def apply_mask(data: bytes, mask: bytes) -> bytes:
-    """
-    Apply masking to the data of a WebSocket message.
-
-    Args:
-        data: Data to mask.
-        mask: 4-bytes mask.
-
-    """
-    if len(mask) != 4:
-        raise ValueError("mask must contain 4 bytes")
-
-    data_int = int.from_bytes(data, sys.byteorder)
-    mask_repeated = mask * (len(data) // 4) + mask[: len(data) % 4]
-    mask_int = int.from_bytes(mask_repeated, sys.byteorder)
-    return (data_int ^ mask_int).to_bytes(len(data), sys.byteorder)

plugins/gtksourceview/lsp_manager/websockets/version.py

@@ -1,92 +0,0 @@
-from __future__ import annotations
-
-import importlib.metadata
-
-
-__all__ = ["tag", "version", "commit"]
-
-
-# ========= =========== ===================
-#           release     development
-# ========= =========== ===================
-# tag       X.Y         X.Y (upcoming)
-# version   X.Y         X.Y.dev1+g5678cde
-# commit    X.Y         5678cde
-# ========= =========== ===================
-
-
-# When tagging a release, set `released = True`.
-# After tagging a release, set `released = False` and increment `tag`.
-
-released = False
-
-tag = version = commit = "13.1"
-
-
-if not released:  # pragma: no cover
-    import pathlib
-    import re
-    import subprocess
-
-    def get_version(tag: str) -> str:
-        # Since setup.py executes the contents of src/websockets/version.py,
-        # __file__ can point to either of these two files.
-        file_path = pathlib.Path(__file__)
-        root_dir = file_path.parents[0 if file_path.name == "setup.py" else 2]
-
-        # Read version from package metadata if it is installed.
-        try:
-            version = importlib.metadata.version("websockets")
-        except ImportError:
-            pass
-        else:
-            # Check that this file belongs to the installed package.
-            files = importlib.metadata.files("websockets")
-            if files:
-                version_files = [f for f in files if f.name == file_path.name]
-                if version_files:
-                    version_file = version_files[0]
-                    if version_file.locate() == file_path:
-                        return version
-
-        # Read version from git if available.
-        try:
-            description = subprocess.run(
-                ["git", "describe", "--dirty", "--tags", "--long"],
-                capture_output=True,
-                cwd=root_dir,
-                timeout=1,
-                check=True,
-                text=True,
-            ).stdout.strip()
-        # subprocess.run raises FileNotFoundError if git isn't on $PATH.
-        except (
-            FileNotFoundError,
-            subprocess.CalledProcessError,
-            subprocess.TimeoutExpired,
-        ):
-            pass
-        else:
-            description_re = r"[0-9.]+-([0-9]+)-(g[0-9a-f]{7,}(?:-dirty)?)"
-            match = re.fullmatch(description_re, description)
-            if match is None:
-                raise ValueError(f"Unexpected git description: {description}")
-            distance, remainder = match.groups()
-            remainder = remainder.replace("-", ".")  # required by PEP 440
-            return f"{tag}.dev{distance}+{remainder}"
-
-        # Avoid crashing if the development version cannot be determined.
-        return f"{tag}.dev0+gunknown"
-
-    version = get_version(tag)
-
-    def get_commit(tag: str, version: str) -> str:
-        # Extract commit from version, falling back to tag if not available.
-        version_re = r"[0-9.]+\.dev[0-9]+\+g([0-9a-f]{7,}|unknown)(?:\.dirty)?"
-        match = re.fullmatch(version_re, version)
-        if match is None:
-            raise ValueError(f"Unexpected version: {version}")
-        (commit,) = match.groups()
-        return tag if commit == "unknown" else commit
-
-    commit = get_commit(tag, version)