149 lines
5.5 KiB
Python
149 lines
5.5 KiB
Python
"""Config flow for Google integration."""
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from __future__ import annotations
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import logging
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from typing import Any
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from oauth2client.client import Credentials
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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 .api import (
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DEVICE_AUTH_CREDS,
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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 DOMAIN
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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 = False
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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_user(
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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 not self._reauth and self._async_current_entries():
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return self.async_abort(reason="already_configured")
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return await super().async_step_user(user_input)
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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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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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get_feature_access(self.hass),
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)
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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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async def _exchange_finished(creds: Credentials | None) -> None:
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self.external_data = {
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DEVICE_AUTH_CREDS: 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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await device_flow.start_exchange_task(_exchange_finished)
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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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existing_entries = self._async_current_entries()
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if existing_entries:
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assert len(existing_entries) == 1
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entry = existing_entries[0]
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self.hass.config_entries.async_update_entry(entry, data=data)
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await self.hass.config_entries.async_reload(entry.entry_id)
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return self.async_abort(reason="reauth_successful")
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return self.async_create_entry(title=self.flow_impl.name, data=data)
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async def async_step_reauth(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Perform reauth upon an API authentication error."""
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self._reauth = True
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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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