core/homeassistant/components/nest/api.py

36 lines
1.2 KiB
Python

"""API for Google Nest Device Access bound to Home Assistant OAuth."""
from aiohttp import ClientSession
from google.oauth2.credentials import Credentials
from google_nest_sdm.auth import AbstractAuth
from homeassistant.helpers import config_entry_oauth2_flow
# See https://developers.google.com/nest/device-access/registration
class AsyncConfigEntryAuth(AbstractAuth):
"""Provide Google Nest Device Access authentication tied to an OAuth2 based config entry."""
def __init__(
self,
websession: ClientSession,
oauth_session: config_entry_oauth2_flow.OAuth2Session,
api_url: str,
):
"""Initialize Google Nest Device Access auth."""
super().__init__(websession, api_url)
self._oauth_session = oauth_session
async def async_get_access_token(self):
"""Return a valid access token."""
if not self._oauth_session.valid_token:
await self._oauth_session.async_ensure_token_valid()
return self._oauth_session.token["access_token"]
async def async_get_creds(self):
"""Return a minimal OAuth credential."""
token = await self.async_get_access_token()
return Credentials(token=token)