core/homeassistant/components/roku/config_flow.py

144 lines
4.8 KiB
Python

"""Config flow for Roku."""
import logging
from socket import gaierror as SocketGIAError
from typing import Any, Dict, Optional
from urllib.parse import urlparse
from requests.exceptions import RequestException
from roku import Roku, RokuException
import voluptuous as vol
from homeassistant.components.ssdp import (
ATTR_SSDP_LOCATION,
ATTR_UPNP_FRIENDLY_NAME,
ATTR_UPNP_SERIAL,
)
from homeassistant.config_entries import CONN_CLASS_LOCAL_POLL, ConfigFlow
from homeassistant.const import CONF_HOST, CONF_NAME
from homeassistant.core import callback
from homeassistant.exceptions import HomeAssistantError
from .const import DOMAIN # pylint: disable=unused-import
DATA_SCHEMA = vol.Schema({vol.Required(CONF_HOST): str})
ERROR_CANNOT_CONNECT = "cannot_connect"
ERROR_UNKNOWN = "unknown"
_LOGGER = logging.getLogger(__name__)
def validate_input(data: Dict) -> Dict:
"""Validate the user input allows us to connect.
Data has the keys from DATA_SCHEMA with values provided by the user.
"""
try:
roku = Roku(data["host"])
device_info = roku.device_info
except (SocketGIAError, RequestException, RokuException) as exception:
raise CannotConnect from exception
except Exception as exception: # pylint: disable=broad-except
raise UnknownError from exception
return {
"title": data["host"],
"host": data["host"],
"serial_num": device_info.serial_num,
}
class RokuConfigFlow(ConfigFlow, domain=DOMAIN):
"""Handle a Roku config flow."""
VERSION = 1
CONNECTION_CLASS = CONN_CLASS_LOCAL_POLL
@callback
def _show_form(self, errors: Optional[Dict] = None) -> Dict[str, Any]:
"""Show the form to the user."""
return self.async_show_form(
step_id="user", data_schema=DATA_SCHEMA, errors=errors or {},
)
async def async_step_import(
self, user_input: Optional[Dict] = None
) -> Dict[str, Any]:
"""Handle configuration by yaml file."""
return await self.async_step_user(user_input)
async def async_step_user(
self, user_input: Optional[Dict] = None
) -> Dict[str, Any]:
"""Handle a flow initialized by the user."""
if not user_input:
return self._show_form()
errors = {}
try:
info = await self.hass.async_add_executor_job(validate_input, user_input)
except CannotConnect:
errors["base"] = ERROR_CANNOT_CONNECT
return self._show_form(errors)
except UnknownError:
_LOGGER.exception("Unknown error trying to connect")
return self.async_abort(reason=ERROR_UNKNOWN)
await self.async_set_unique_id(info["serial_num"])
self._abort_if_unique_id_configured()
return self.async_create_entry(title=info["title"], data=user_input)
async def async_step_ssdp(
self, discovery_info: Optional[Dict] = None
) -> Dict[str, Any]:
"""Handle a flow initialized by discovery."""
host = urlparse(discovery_info[ATTR_SSDP_LOCATION]).hostname
name = discovery_info[ATTR_UPNP_FRIENDLY_NAME]
serial_num = discovery_info[ATTR_UPNP_SERIAL]
await self.async_set_unique_id(serial_num)
self._abort_if_unique_id_configured(updates={CONF_HOST: host})
# pylint: disable=no-member # https://github.com/PyCQA/pylint/issues/3167
self.context.update(
{CONF_HOST: host, CONF_NAME: name, "title_placeholders": {"name": host}}
)
return await self.async_step_ssdp_confirm()
async def async_step_ssdp_confirm(
self, user_input: Optional[Dict] = None
) -> Dict[str, Any]:
"""Handle user-confirmation of discovered device."""
# pylint: disable=no-member # https://github.com/PyCQA/pylint/issues/3167
name = self.context.get(CONF_NAME)
if user_input is not None:
# pylint: disable=no-member # https://github.com/PyCQA/pylint/issues/3167
user_input[CONF_HOST] = self.context.get(CONF_HOST)
user_input[CONF_NAME] = name
try:
await self.hass.async_add_executor_job(validate_input, user_input)
return self.async_create_entry(title=name, data=user_input)
except CannotConnect:
return self.async_abort(reason=ERROR_CANNOT_CONNECT)
except UnknownError:
_LOGGER.exception("Unknown error trying to connect")
return self.async_abort(reason=ERROR_UNKNOWN)
return self.async_show_form(
step_id="ssdp_confirm", description_placeholders={"name": name},
)
class CannotConnect(HomeAssistantError):
"""Error to indicate we cannot connect."""
class UnknownError(HomeAssistantError):
"""Error to indicate we encountered an unknown error."""