216 lines
8.0 KiB
Python
216 lines
8.0 KiB
Python
"""Config flow for Google integration."""
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from __future__ import annotations
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from collections.abc import Mapping
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import logging
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from typing import Any
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from gcal_sync.api import GoogleCalendarService
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from gcal_sync.exceptions import ApiException
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import voluptuous as vol
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from homeassistant import config_entries
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from homeassistant.core import callback
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from homeassistant.data_entry_flow import FlowResult
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from homeassistant.helpers import config_entry_oauth2_flow
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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from .api import (
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DEVICE_AUTH_CREDS,
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AccessTokenAuthImpl,
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DeviceAuth,
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DeviceFlow,
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OAuthError,
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async_create_device_flow,
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get_feature_access,
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)
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from .const import CONF_CALENDAR_ACCESS, DOMAIN, FeatureAccess
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_LOGGER = logging.getLogger(__name__)
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class OAuth2FlowHandler(
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config_entry_oauth2_flow.AbstractOAuth2FlowHandler, domain=DOMAIN
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):
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"""Config flow to handle Google Calendars OAuth2 authentication."""
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DOMAIN = DOMAIN
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def __init__(self) -> None:
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"""Set up instance."""
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super().__init__()
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self._reauth_config_entry: config_entries.ConfigEntry | None = None
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self._device_flow: DeviceFlow | None = None
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@property
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def logger(self) -> logging.Logger:
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"""Return logger."""
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return logging.getLogger(__name__)
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async def async_step_import(self, info: dict[str, Any]) -> FlowResult:
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"""Import existing auth into a new config entry."""
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if self._async_current_entries():
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return self.async_abort(reason="single_instance_allowed")
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implementations = await config_entry_oauth2_flow.async_get_implementations(
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self.hass, self.DOMAIN
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)
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assert len(implementations) == 1
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self.flow_impl = list(implementations.values())[0]
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self.external_data = info
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return await super().async_step_creation(info)
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async def async_step_auth(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Create an entry for auth."""
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# The default behavior from the parent class is to redirect the
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# user with an external step. When using the device flow, we instead
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# prompt the user to visit a URL and enter a code. The device flow
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# background task will poll the exchange endpoint to get valid
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# creds or until a timeout is complete.
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if user_input is not None:
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return self.async_show_progress_done(next_step_id="creation")
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if not self._device_flow:
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_LOGGER.debug("Creating DeviceAuth flow")
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if not isinstance(self.flow_impl, DeviceAuth):
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_LOGGER.error(
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"Unexpected OAuth implementation does not support device auth: %s",
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self.flow_impl,
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)
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return self.async_abort(reason="oauth_error")
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calendar_access = get_feature_access(self.hass)
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if self._reauth_config_entry and self._reauth_config_entry.options:
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calendar_access = FeatureAccess[
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self._reauth_config_entry.options[CONF_CALENDAR_ACCESS]
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]
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try:
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device_flow = await async_create_device_flow(
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self.hass,
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self.flow_impl.client_id,
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self.flow_impl.client_secret,
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calendar_access,
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)
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except TimeoutError as err:
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_LOGGER.error("Timeout initializing device flow: %s", str(err))
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return self.async_abort(reason="timeout_connect")
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except OAuthError as err:
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_LOGGER.error("Error initializing device flow: %s", str(err))
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return self.async_abort(reason="oauth_error")
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self._device_flow = device_flow
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def _exchange_finished() -> None:
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self.external_data = {
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DEVICE_AUTH_CREDS: device_flow.creds
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} # is None on timeout/expiration
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self.hass.async_create_task(
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self.hass.config_entries.flow.async_configure(
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flow_id=self.flow_id, user_input={}
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)
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)
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device_flow.async_set_listener(_exchange_finished)
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device_flow.async_start_exchange()
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return self.async_show_progress(
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step_id="auth",
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description_placeholders={
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"url": self._device_flow.verification_url,
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"user_code": self._device_flow.user_code,
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},
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progress_action="exchange",
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)
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async def async_step_creation(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Handle external yaml configuration."""
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if self.external_data.get(DEVICE_AUTH_CREDS) is None:
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return self.async_abort(reason="code_expired")
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return await super().async_step_creation(user_input)
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async def async_oauth_create_entry(self, data: dict) -> FlowResult:
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"""Create an entry for the flow, or update existing entry."""
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if self._reauth_config_entry:
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self.hass.config_entries.async_update_entry(
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self._reauth_config_entry, data=data
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)
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await self.hass.config_entries.async_reload(
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self._reauth_config_entry.entry_id
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)
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return self.async_abort(reason="reauth_successful")
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calendar_service = GoogleCalendarService(
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AccessTokenAuthImpl(
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async_get_clientsession(self.hass), data["token"]["access_token"]
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)
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)
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try:
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primary_calendar = await calendar_service.async_get_calendar("primary")
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except ApiException as err:
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_LOGGER.error("Error reading primary calendar: %s", err)
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return self.async_abort(reason="cannot_connect")
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await self.async_set_unique_id(primary_calendar.id)
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self._abort_if_unique_id_configured()
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return self.async_create_entry(
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title=primary_calendar.id,
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data=data,
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options={
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CONF_CALENDAR_ACCESS: get_feature_access(self.hass).name,
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},
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)
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async def async_step_reauth(self, entry_data: Mapping[str, Any]) -> FlowResult:
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"""Perform reauth upon an API authentication error."""
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self._reauth_config_entry = self.hass.config_entries.async_get_entry(
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self.context["entry_id"]
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)
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return await self.async_step_reauth_confirm()
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async def async_step_reauth_confirm(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Confirm reauth dialog."""
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if user_input is None:
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return self.async_show_form(step_id="reauth_confirm")
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return await self.async_step_user()
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@staticmethod
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@callback
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def async_get_options_flow(
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config_entry: config_entries.ConfigEntry,
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) -> config_entries.OptionsFlow:
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"""Create an options flow."""
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return OptionsFlowHandler(config_entry)
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class OptionsFlowHandler(config_entries.OptionsFlow):
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"""Google Calendar options flow."""
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def __init__(self, config_entry: config_entries.ConfigEntry) -> None:
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"""Initialize options flow."""
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self.config_entry = config_entry
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async def async_step_init(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Manage the options."""
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if user_input is not None:
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return self.async_create_entry(title="", data=user_input)
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return self.async_show_form(
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step_id="init",
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data_schema=vol.Schema(
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{
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vol.Required(
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CONF_CALENDAR_ACCESS,
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default=self.config_entry.options.get(CONF_CALENDAR_ACCESS),
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): vol.In(
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{
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"read_write": "Read/Write access (can create events)",
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"read_only": "Read-only access",
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}
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)
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}
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),
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)
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