mirror of https://github.com/home-assistant/core
133 lines
4.1 KiB
Python
133 lines
4.1 KiB
Python
"""Account linking via the cloud."""
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import asyncio
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import logging
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from typing import Any
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import aiohttp
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from awesomeversion import AwesomeVersion
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from hass_nabucasa import account_link
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from homeassistant.const import __version__ as HA_VERSION
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers import config_entry_oauth2_flow, event
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from .const import DOMAIN
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DATA_SERVICES = "cloud_account_link_services"
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CACHE_TIMEOUT = 3600
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_LOGGER = logging.getLogger(__name__)
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CURRENT_VERSION = AwesomeVersion(HA_VERSION)
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@callback
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def async_setup(hass: HomeAssistant):
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"""Set up cloud account link."""
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config_entry_oauth2_flow.async_add_implementation_provider(
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hass, DOMAIN, async_provide_implementation
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)
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async def async_provide_implementation(hass: HomeAssistant, domain: str):
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"""Provide an implementation for a domain."""
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services = await _get_services(hass)
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for service in services:
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if (
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service["service"] == domain
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and CURRENT_VERSION >= service["min_version"]
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and (
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service.get("accepts_new_authorizations", True)
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or (
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(entries := hass.config_entries.async_entries(domain))
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and any(
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entry.data.get("auth_implementation") == DOMAIN
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for entry in entries
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)
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)
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)
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):
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return [CloudOAuth2Implementation(hass, domain)]
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return []
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async def _get_services(hass):
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"""Get the available services."""
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if (services := hass.data.get(DATA_SERVICES)) is not None:
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return services
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try:
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services = await account_link.async_fetch_available_services(hass.data[DOMAIN])
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except (aiohttp.ClientError, asyncio.TimeoutError):
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return []
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hass.data[DATA_SERVICES] = services
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@callback
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def clear_services(_now):
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"""Clear services cache."""
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hass.data.pop(DATA_SERVICES, None)
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event.async_call_later(hass, CACHE_TIMEOUT, clear_services)
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return services
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class CloudOAuth2Implementation(config_entry_oauth2_flow.AbstractOAuth2Implementation):
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"""Cloud implementation of the OAuth2 flow."""
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def __init__(self, hass: HomeAssistant, service: str) -> None:
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"""Initialize cloud OAuth2 implementation."""
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self.hass = hass
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self.service = service
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@property
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def name(self) -> str:
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"""Name of the implementation."""
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return "Home Assistant Cloud"
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@property
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def domain(self) -> str:
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"""Domain that is providing the implementation."""
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return DOMAIN
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async def async_generate_authorize_url(self, flow_id: str) -> str:
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"""Generate a url for the user to authorize."""
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helper = account_link.AuthorizeAccountHelper(
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self.hass.data[DOMAIN], self.service
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)
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authorize_url = await helper.async_get_authorize_url()
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async def await_tokens():
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"""Wait for tokens and pass them on when received."""
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try:
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tokens = await helper.async_get_tokens()
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except asyncio.TimeoutError:
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_LOGGER.info("Timeout fetching tokens for flow %s", flow_id)
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except account_link.AccountLinkException as err:
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_LOGGER.info(
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"Failed to fetch tokens for flow %s: %s", flow_id, err.code
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)
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else:
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await self.hass.config_entries.flow.async_configure(
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flow_id=flow_id, user_input=tokens
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)
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self.hass.async_create_task(await_tokens())
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return authorize_url
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async def async_resolve_external_data(self, external_data: Any) -> dict:
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"""Resolve external data to tokens."""
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# We already passed in tokens
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return external_data
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async def _async_refresh_token(self, token: dict) -> dict:
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"""Refresh a token."""
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new_token = await account_link.async_fetch_access_token(
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self.hass.data[DOMAIN], self.service, token["refresh_token"]
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)
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return {**token, **new_token}
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