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mirror of https://github.com/home-assistant/core synced 2024-09-03 08:14:07 +02:00
ha-core/homeassistant/components/cloud/account_link.py

145 lines
4.1 KiB
Python

"""Account linking via the cloud."""
import asyncio
import logging
from typing import Any
from hass_nabucasa import account_link
from homeassistant.const import MAJOR_VERSION, MINOR_VERSION, PATCH_VERSION
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers import config_entry_oauth2_flow, event
from .const import DOMAIN
DATA_SERVICES = "cloud_account_link_services"
CACHE_TIMEOUT = 3600
_LOGGER = logging.getLogger(__name__)
@callback
def async_setup(hass: HomeAssistant):
"""Set up cloud account link."""
config_entry_oauth2_flow.async_add_implementation_provider(
hass, DOMAIN, async_provide_implementation
)
async def async_provide_implementation(hass: HomeAssistant, domain: str):
"""Provide an implementation for a domain."""
services = await _get_services(hass)
for service in services:
if service["service"] == domain and _is_older(service["min_version"]):
return CloudOAuth2Implementation(hass, domain)
return
@callback
def _is_older(version: str) -> bool:
"""Test if a version is older than the current HA version."""
version_parts = version.split(".")
if len(version_parts) != 3:
return False
try:
version_parts = [int(val) for val in version_parts]
except ValueError:
return False
patch_number_str = ""
for char in PATCH_VERSION:
if char.isnumeric():
patch_number_str += char
else:
break
try:
patch_number = int(patch_number_str)
except ValueError:
patch_number = 0
cur_version_parts = [MAJOR_VERSION, MINOR_VERSION, patch_number]
return version_parts <= cur_version_parts
async def _get_services(hass):
"""Get the available services."""
services = hass.data.get(DATA_SERVICES)
if services is not None:
return services
services = await account_link.async_fetch_available_services(hass.data[DOMAIN])
hass.data[DATA_SERVICES] = services
@callback
def clear_services(_now):
"""Clear services cache."""
hass.data.pop(DATA_SERVICES, None)
event.async_call_later(hass, CACHE_TIMEOUT, clear_services)
return services
class CloudOAuth2Implementation(config_entry_oauth2_flow.AbstractOAuth2Implementation):
"""Cloud implementation of the OAuth2 flow."""
def __init__(self, hass: HomeAssistant, service: str):
"""Initialize cloud OAuth2 implementation."""
self.hass = hass
self.service = service
@property
def name(self) -> str:
"""Name of the implementation."""
return "Home Assistant Cloud"
@property
def domain(self) -> str:
"""Domain that is providing the implementation."""
return DOMAIN
async def async_generate_authorize_url(self, flow_id: str) -> str:
"""Generate a url for the user to authorize."""
helper = account_link.AuthorizeAccountHelper(
self.hass.data[DOMAIN], self.service
)
authorize_url = await helper.async_get_authorize_url()
async def await_tokens():
"""Wait for tokens and pass them on when received."""
try:
tokens = await helper.async_get_tokens()
except asyncio.TimeoutError:
_LOGGER.info("Timeout fetching tokens for flow %s", flow_id)
except account_link.AccountLinkException as err:
_LOGGER.info(
"Failed to fetch tokens for flow %s: %s", flow_id, err.code
)
else:
await self.hass.config_entries.flow.async_configure(
flow_id=flow_id, user_input=tokens
)
self.hass.async_create_task(await_tokens())
return authorize_url
async def async_resolve_external_data(self, external_data: Any) -> dict:
"""Resolve external data to tokens."""
# We already passed in tokens
return external_data
async def _async_refresh_token(self, token: dict) -> dict:
"""Refresh a token."""
return await account_link.async_fetch_access_token(
self.hass.data[DOMAIN], self.service, token["refresh_token"]
)