core/homeassistant/components/hassio/websocket_api.py

125 lines
3.8 KiB
Python

"""Websocekt API handlers for the hassio integration."""
import logging
import re
import voluptuous as vol
from homeassistant.components import websocket_api
from homeassistant.components.websocket_api.connection import ActiveConnection
from homeassistant.core import HomeAssistant, callback
from homeassistant.exceptions import Unauthorized
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.dispatcher import (
async_dispatcher_connect,
async_dispatcher_send,
)
from .const import (
ATTR_DATA,
ATTR_ENDPOINT,
ATTR_METHOD,
ATTR_RESULT,
ATTR_TIMEOUT,
ATTR_WS_EVENT,
DOMAIN,
EVENT_SUPERVISOR_EVENT,
WS_ID,
WS_TYPE,
WS_TYPE_API,
WS_TYPE_EVENT,
WS_TYPE_SUBSCRIBE,
)
from .handler import HassIO
SCHEMA_WEBSOCKET_EVENT = vol.Schema(
{vol.Required(ATTR_WS_EVENT): cv.string},
extra=vol.ALLOW_EXTRA,
)
# Endpoints needed for ingress can't require admin because addons can set `panel_admin: false`
WS_NO_ADMIN_ENDPOINTS = re.compile(
r"^(?:" r"|/ingress/(session|validate_session)" r"|/addons/[^/]+/info" r")$"
)
_LOGGER: logging.Logger = logging.getLogger(__package__)
@callback
def async_load_websocket_api(hass: HomeAssistant):
"""Set up the websocket API."""
websocket_api.async_register_command(hass, websocket_supervisor_event)
websocket_api.async_register_command(hass, websocket_supervisor_api)
websocket_api.async_register_command(hass, websocket_subscribe)
@websocket_api.require_admin
@websocket_api.async_response
@websocket_api.websocket_command({vol.Required(WS_TYPE): WS_TYPE_SUBSCRIBE})
async def websocket_subscribe(
hass: HomeAssistant, connection: ActiveConnection, msg: dict
):
"""Subscribe to supervisor events."""
@callback
def forward_messages(data):
"""Forward events to websocket."""
connection.send_message(websocket_api.event_message(msg[WS_ID], data))
connection.subscriptions[msg[WS_ID]] = async_dispatcher_connect(
hass, EVENT_SUPERVISOR_EVENT, forward_messages
)
connection.send_message(websocket_api.result_message(msg[WS_ID]))
@websocket_api.async_response
@websocket_api.websocket_command(
{
vol.Required(WS_TYPE): WS_TYPE_EVENT,
vol.Required(ATTR_DATA): SCHEMA_WEBSOCKET_EVENT,
}
)
async def websocket_supervisor_event(
hass: HomeAssistant, connection: ActiveConnection, msg: dict
):
"""Publish events from the Supervisor."""
async_dispatcher_send(hass, EVENT_SUPERVISOR_EVENT, msg[ATTR_DATA])
connection.send_result(msg[WS_ID])
@websocket_api.async_response
@websocket_api.websocket_command(
{
vol.Required(WS_TYPE): WS_TYPE_API,
vol.Required(ATTR_ENDPOINT): cv.string,
vol.Required(ATTR_METHOD): cv.string,
vol.Optional(ATTR_DATA): dict,
vol.Optional(ATTR_TIMEOUT): vol.Any(cv.Number, None),
}
)
async def websocket_supervisor_api(
hass: HomeAssistant, connection: ActiveConnection, msg: dict
):
"""Websocket handler to call Supervisor API."""
if not connection.user.is_admin and not WS_NO_ADMIN_ENDPOINTS.match(
msg[ATTR_ENDPOINT]
):
raise Unauthorized()
supervisor: HassIO = hass.data[DOMAIN]
try:
result = await supervisor.send_command(
msg[ATTR_ENDPOINT],
method=msg[ATTR_METHOD],
timeout=msg.get(ATTR_TIMEOUT, 10),
payload=msg.get(ATTR_DATA, {}),
)
if result.get(ATTR_RESULT) == "error":
raise hass.components.hassio.HassioAPIError(result.get("message"))
except hass.components.hassio.HassioAPIError as err:
_LOGGER.error("Failed to to call %s - %s", msg[ATTR_ENDPOINT], err)
connection.send_error(
msg[WS_ID], code=websocket_api.ERR_UNKNOWN_ERROR, message=str(err)
)
else:
connection.send_result(msg[WS_ID], result.get(ATTR_DATA, {}))