core/homeassistant/components/august/gateway.py

134 lines
4.5 KiB
Python

"""Handle August connection setup and authentication."""
import asyncio
import logging
from aiohttp import ClientError
from august.api_async import ApiAsync
from august.authenticator_async import AuthenticationState, AuthenticatorAsync
from homeassistant.const import CONF_PASSWORD, CONF_TIMEOUT, CONF_USERNAME
from homeassistant.helpers import aiohttp_client
from .const import (
CONF_ACCESS_TOKEN_CACHE_FILE,
CONF_INSTALL_ID,
CONF_LOGIN_METHOD,
DEFAULT_AUGUST_CONFIG_FILE,
VERIFICATION_CODE_KEY,
)
from .exceptions import CannotConnect, InvalidAuth, RequireValidation
_LOGGER = logging.getLogger(__name__)
class AugustGateway:
"""Handle the connection to August."""
def __init__(self, hass):
"""Init the connection."""
self._aiohttp_session = aiohttp_client.async_get_clientsession(hass)
self._token_refresh_lock = asyncio.Lock()
self._access_token_cache_file = None
self._hass = hass
self._config = None
self._api = None
self._authenticator = None
self._authentication = None
@property
def authenticator(self):
"""August authentication object from py-august."""
return self._authenticator
@property
def authentication(self):
"""August authentication object from py-august."""
return self._authentication
@property
def access_token(self):
"""Access token for the api."""
return self._authentication.access_token
@property
def api(self):
"""August api object from py-august."""
return self._api
def config_entry(self):
"""Config entry."""
return {
CONF_LOGIN_METHOD: self._config[CONF_LOGIN_METHOD],
CONF_USERNAME: self._config[CONF_USERNAME],
CONF_PASSWORD: self._config[CONF_PASSWORD],
CONF_INSTALL_ID: self._config.get(CONF_INSTALL_ID),
CONF_TIMEOUT: self._config.get(CONF_TIMEOUT),
CONF_ACCESS_TOKEN_CACHE_FILE: self._access_token_cache_file,
}
async def async_setup(self, conf):
"""Create the api and authenticator objects."""
if conf.get(VERIFICATION_CODE_KEY):
return
self._access_token_cache_file = conf.get(
CONF_ACCESS_TOKEN_CACHE_FILE,
f".{conf[CONF_USERNAME]}{DEFAULT_AUGUST_CONFIG_FILE}",
)
self._config = conf
self._api = ApiAsync(
self._aiohttp_session, timeout=self._config.get(CONF_TIMEOUT)
)
self._authenticator = AuthenticatorAsync(
self._api,
self._config[CONF_LOGIN_METHOD],
self._config[CONF_USERNAME],
self._config[CONF_PASSWORD],
install_id=self._config.get(CONF_INSTALL_ID),
access_token_cache_file=self._hass.config.path(
self._access_token_cache_file
),
)
await self._authenticator.async_setup_authentication()
async def async_authenticate(self):
"""Authenticate with the details provided to setup."""
self._authentication = None
try:
self._authentication = await self.authenticator.async_authenticate()
except ClientError as ex:
_LOGGER.error("Unable to connect to August service: %s", str(ex))
raise CannotConnect
if self._authentication.state == AuthenticationState.BAD_PASSWORD:
raise InvalidAuth
if self._authentication.state == AuthenticationState.REQUIRES_VALIDATION:
raise RequireValidation
if self._authentication.state != AuthenticationState.AUTHENTICATED:
_LOGGER.error(
"Unknown authentication state: %s", self._authentication.state
)
raise InvalidAuth
return self._authentication
async def async_refresh_access_token_if_needed(self):
"""Refresh the august access token if needed."""
if self.authenticator.should_refresh():
async with self._token_refresh_lock:
refreshed_authentication = await self.authenticator.async_refresh_access_token(
force=False
)
_LOGGER.info(
"Refreshed august access token. The old token expired at %s, and the new token expires at %s",
self.authentication.access_token_expires,
refreshed_authentication.access_token_expires,
)
self._authentication = refreshed_authentication