mirror of
https://github.com/home-assistant/core
synced 2024-09-03 08:14:07 +02:00
156 lines
5.1 KiB
Python
156 lines
5.1 KiB
Python
"""Config flow to configure Nest."""
|
|
import asyncio
|
|
from collections import OrderedDict
|
|
import logging
|
|
import os
|
|
|
|
import async_timeout
|
|
import voluptuous as vol
|
|
|
|
from homeassistant import config_entries
|
|
from homeassistant.core import callback
|
|
from homeassistant.exceptions import HomeAssistantError
|
|
from homeassistant.util.json import load_json
|
|
|
|
from .const import DOMAIN
|
|
|
|
DATA_FLOW_IMPL = "nest_flow_implementation"
|
|
_LOGGER = logging.getLogger(__name__)
|
|
|
|
|
|
@callback
|
|
def register_flow_implementation(hass, domain, name, gen_authorize_url, convert_code):
|
|
"""Register a flow implementation.
|
|
|
|
domain: Domain of the component responsible for the implementation.
|
|
name: Name of the component.
|
|
gen_authorize_url: Coroutine function to generate the authorize url.
|
|
convert_code: Coroutine function to convert a code to an access token.
|
|
"""
|
|
if DATA_FLOW_IMPL not in hass.data:
|
|
hass.data[DATA_FLOW_IMPL] = OrderedDict()
|
|
|
|
hass.data[DATA_FLOW_IMPL][domain] = {
|
|
"domain": domain,
|
|
"name": name,
|
|
"gen_authorize_url": gen_authorize_url,
|
|
"convert_code": convert_code,
|
|
}
|
|
|
|
|
|
class NestAuthError(HomeAssistantError):
|
|
"""Base class for Nest auth errors."""
|
|
|
|
|
|
class CodeInvalid(NestAuthError):
|
|
"""Raised when invalid authorization code."""
|
|
|
|
|
|
@config_entries.HANDLERS.register(DOMAIN)
|
|
class NestFlowHandler(config_entries.ConfigFlow):
|
|
"""Handle a Nest config flow."""
|
|
|
|
VERSION = 1
|
|
CONNECTION_CLASS = config_entries.CONN_CLASS_CLOUD_PUSH
|
|
|
|
def __init__(self):
|
|
"""Initialize the Nest config flow."""
|
|
self.flow_impl = None
|
|
|
|
async def async_step_user(self, user_input=None):
|
|
"""Handle a flow initialized by the user."""
|
|
return await self.async_step_init(user_input)
|
|
|
|
async def async_step_init(self, user_input=None):
|
|
"""Handle a flow start."""
|
|
flows = self.hass.data.get(DATA_FLOW_IMPL, {})
|
|
|
|
if self.hass.config_entries.async_entries(DOMAIN):
|
|
return self.async_abort(reason="already_setup")
|
|
|
|
if not flows:
|
|
return self.async_abort(reason="no_flows")
|
|
|
|
if len(flows) == 1:
|
|
self.flow_impl = list(flows)[0]
|
|
return await self.async_step_link()
|
|
|
|
if user_input is not None:
|
|
self.flow_impl = user_input["flow_impl"]
|
|
return await self.async_step_link()
|
|
|
|
return self.async_show_form(
|
|
step_id="init",
|
|
data_schema=vol.Schema({vol.Required("flow_impl"): vol.In(list(flows))}),
|
|
)
|
|
|
|
async def async_step_link(self, user_input=None):
|
|
"""Attempt to link with the Nest account.
|
|
|
|
Route the user to a website to authenticate with Nest. Depending on
|
|
implementation type we expect a pin or an external component to
|
|
deliver the authentication code.
|
|
"""
|
|
flow = self.hass.data[DATA_FLOW_IMPL][self.flow_impl]
|
|
|
|
errors = {}
|
|
|
|
if user_input is not None:
|
|
try:
|
|
with async_timeout.timeout(10):
|
|
tokens = await flow["convert_code"](user_input["code"])
|
|
return self._entry_from_tokens(
|
|
"Nest (via {})".format(flow["name"]), flow, tokens
|
|
)
|
|
|
|
except asyncio.TimeoutError:
|
|
errors["code"] = "timeout"
|
|
except CodeInvalid:
|
|
errors["code"] = "invalid_code"
|
|
except NestAuthError:
|
|
errors["code"] = "unknown"
|
|
except Exception: # pylint: disable=broad-except
|
|
errors["code"] = "internal_error"
|
|
_LOGGER.exception("Unexpected error resolving code")
|
|
|
|
try:
|
|
with async_timeout.timeout(10):
|
|
url = await flow["gen_authorize_url"](self.flow_id)
|
|
except asyncio.TimeoutError:
|
|
return self.async_abort(reason="authorize_url_timeout")
|
|
except Exception: # pylint: disable=broad-except
|
|
_LOGGER.exception("Unexpected error generating auth url")
|
|
return self.async_abort(reason="authorize_url_fail")
|
|
|
|
return self.async_show_form(
|
|
step_id="link",
|
|
description_placeholders={"url": url},
|
|
data_schema=vol.Schema({vol.Required("code"): str}),
|
|
errors=errors,
|
|
)
|
|
|
|
async def async_step_import(self, info):
|
|
"""Import existing auth from Nest."""
|
|
if self.hass.config_entries.async_entries(DOMAIN):
|
|
return self.async_abort(reason="already_setup")
|
|
|
|
config_path = info["nest_conf_path"]
|
|
|
|
if not await self.hass.async_add_job(os.path.isfile, config_path):
|
|
self.flow_impl = DOMAIN
|
|
return await self.async_step_link()
|
|
|
|
flow = self.hass.data[DATA_FLOW_IMPL][DOMAIN]
|
|
tokens = await self.hass.async_add_job(load_json, config_path)
|
|
|
|
return self._entry_from_tokens(
|
|
"Nest (import from configuration.yaml)", flow, tokens
|
|
)
|
|
|
|
@callback
|
|
def _entry_from_tokens(self, title, flow, tokens):
|
|
"""Create an entry from tokens."""
|
|
return self.async_create_entry(
|
|
title=title, data={"tokens": tokens, "impl_domain": flow["domain"]}
|
|
)
|