core/homeassistant/components/google_mail/api.py

38 lines
1.3 KiB
Python

"""API for Google Mail bound to Home Assistant OAuth."""
from google.auth.exceptions import RefreshError
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import Resource, build
from homeassistant.const import CONF_ACCESS_TOKEN
from homeassistant.helpers import config_entry_oauth2_flow
class AsyncConfigEntryAuth:
"""Provide Google Mail authentication tied to an OAuth2 based config entry."""
def __init__(
self,
oauth2_session: config_entry_oauth2_flow.OAuth2Session,
) -> None:
"""Initialize Google Mail Auth."""
self.oauth_session = oauth2_session
@property
def access_token(self) -> str:
"""Return the access token."""
return self.oauth_session.token[CONF_ACCESS_TOKEN]
async def check_and_refresh_token(self) -> str:
"""Check the token."""
await self.oauth_session.async_ensure_token_valid()
return self.access_token
async def get_resource(self) -> Resource:
"""Get current resource."""
try:
credentials = Credentials(await self.check_and_refresh_token())
except RefreshError as ex:
self.oauth_session.config_entry.async_start_reauth(self.oauth_session.hass)
raise ex
return build("gmail", "v1", credentials=credentials)