core/homeassistant/components/websocket_api/auth.py

111 lines
3.5 KiB
Python

"""Handle the auth of a connection."""
from __future__ import annotations
from collections.abc import Callable
from typing import TYPE_CHECKING, Any, Final
from aiohttp.web import Request
import voluptuous as vol
from voluptuous.humanize import humanize_error
from homeassistant.auth.models import RefreshToken, User
from homeassistant.components.http.ban import process_success_login, process_wrong_login
from homeassistant.const import __version__
from homeassistant.core import CALLBACK_TYPE, HomeAssistant
from .connection import ActiveConnection
from .error import Disconnect
if TYPE_CHECKING:
from .http import WebSocketAdapter
TYPE_AUTH: Final = "auth"
TYPE_AUTH_INVALID: Final = "auth_invalid"
TYPE_AUTH_OK: Final = "auth_ok"
TYPE_AUTH_REQUIRED: Final = "auth_required"
AUTH_MESSAGE_SCHEMA: Final = vol.Schema(
{
vol.Required("type"): TYPE_AUTH,
vol.Exclusive("api_password", "auth"): str,
vol.Exclusive("access_token", "auth"): str,
}
)
def auth_ok_message() -> dict[str, str]:
"""Return an auth_ok message."""
return {"type": TYPE_AUTH_OK, "ha_version": __version__}
def auth_required_message() -> dict[str, str]:
"""Return an auth_required message."""
return {"type": TYPE_AUTH_REQUIRED, "ha_version": __version__}
def auth_invalid_message(message: str) -> dict[str, str]:
"""Return an auth_invalid message."""
return {"type": TYPE_AUTH_INVALID, "message": message}
class AuthPhase:
"""Connection that requires client to authenticate first."""
def __init__(
self,
logger: WebSocketAdapter,
hass: HomeAssistant,
send_message: Callable[[str | dict[str, Any]], None],
cancel_ws: CALLBACK_TYPE,
request: Request,
) -> None:
"""Initialize the authentiated connection."""
self._hass = hass
self._send_message = send_message
self._cancel_ws = cancel_ws
self._logger = logger
self._request = request
async def async_handle(self, msg: dict[str, str]) -> ActiveConnection:
"""Handle authentication."""
try:
msg = AUTH_MESSAGE_SCHEMA(msg)
except vol.Invalid as err:
error_msg = (
f"Auth message incorrectly formatted: {humanize_error(msg, err)}"
)
self._logger.warning(error_msg)
self._send_message(auth_invalid_message(error_msg))
raise Disconnect from err
if "access_token" in msg:
self._logger.debug("Received access_token")
refresh_token = await self._hass.auth.async_validate_access_token(
msg["access_token"]
)
if refresh_token is not None:
conn = await self._async_finish_auth(refresh_token.user, refresh_token)
conn.subscriptions[
"auth"
] = self._hass.auth.async_register_revoke_token_callback(
refresh_token.id, self._cancel_ws
)
return conn
self._send_message(auth_invalid_message("Invalid access token or password"))
await process_wrong_login(self._request)
raise Disconnect
async def _async_finish_auth(
self, user: User, refresh_token: RefreshToken
) -> ActiveConnection:
"""Create an active connection."""
self._logger.debug("Auth OK")
await process_success_login(self._request)
self._send_message(auth_ok_message())
return ActiveConnection(
self._logger, self._hass, self._send_message, user, refresh_token
)