228 lines
7.6 KiB
Python
228 lines
7.6 KiB
Python
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"""Config flow for Bosch Smart Home Controller integration."""
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import logging
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from os import makedirs
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from boschshcpy import SHCRegisterClient, SHCSession
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from boschshcpy.exceptions import (
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SHCAuthenticationError,
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SHCConnectionError,
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SHCRegistrationError,
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SHCSessionError,
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)
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import voluptuous as vol
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from homeassistant import config_entries, core
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from homeassistant.components.zeroconf import async_get_instance
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from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_TOKEN
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from .const import (
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CONF_HOSTNAME,
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CONF_SHC_CERT,
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CONF_SHC_KEY,
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CONF_SSL_CERTIFICATE,
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CONF_SSL_KEY,
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DOMAIN,
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)
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_LOGGER = logging.getLogger(__name__)
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HOST_SCHEMA = vol.Schema(
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{
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vol.Required(CONF_HOST): str,
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}
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)
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def write_tls_asset(hass: core.HomeAssistant, filename: str, asset: bytes) -> None:
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"""Write the tls assets to disk."""
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makedirs(hass.config.path(DOMAIN), exist_ok=True)
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with open(hass.config.path(DOMAIN, filename), "w") as file_handle:
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file_handle.write(asset.decode("utf-8"))
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def create_credentials_and_validate(hass, host, user_input, zeroconf):
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"""Create and store credentials and validate session."""
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helper = SHCRegisterClient(host, user_input[CONF_PASSWORD])
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result = helper.register(host, "HomeAssistant")
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if result is not None:
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write_tls_asset(hass, CONF_SHC_CERT, result["cert"])
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write_tls_asset(hass, CONF_SHC_KEY, result["key"])
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session = SHCSession(
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host,
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hass.config.path(DOMAIN, CONF_SHC_CERT),
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hass.config.path(DOMAIN, CONF_SHC_KEY),
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True,
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zeroconf,
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)
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session.authenticate()
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return result
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def get_info_from_host(hass, host, zeroconf):
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"""Get information from host."""
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session = SHCSession(
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host,
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"",
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"",
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True,
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zeroconf,
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)
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information = session.mdns_info()
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return {"title": information.name, "unique_id": information.unique_id}
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class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
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"""Handle a config flow for Bosch SHC."""
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VERSION = 1
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info = None
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host = None
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hostname = None
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async def async_step_reauth(self, user_input=None):
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"""Perform reauth upon an API authentication error."""
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return await self.async_step_reauth_confirm()
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async def async_step_reauth_confirm(self, user_input=None):
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"""Dialog that informs the user that reauth is required."""
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if user_input is None:
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return self.async_show_form(
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step_id="reauth_confirm",
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data_schema=HOST_SCHEMA,
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)
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self.host = host = user_input[CONF_HOST]
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self.info = await self._get_info(host)
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return await self.async_step_credentials()
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async def async_step_user(self, user_input=None):
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"""Handle the initial step."""
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errors = {}
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if user_input is not None:
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host = user_input[CONF_HOST]
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try:
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self.info = info = await self._get_info(host)
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except SHCConnectionError:
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errors["base"] = "cannot_connect"
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except Exception: # pylint: disable=broad-except
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_LOGGER.exception("Unexpected exception")
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errors["base"] = "unknown"
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else:
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await self.async_set_unique_id(info["unique_id"])
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self._abort_if_unique_id_configured({CONF_HOST: host})
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self.host = host
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return await self.async_step_credentials()
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return self.async_show_form(
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step_id="user", data_schema=HOST_SCHEMA, errors=errors
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)
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async def async_step_credentials(self, user_input=None):
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"""Handle the credentials step."""
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errors = {}
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if user_input is not None:
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zeroconf = await async_get_instance(self.hass)
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try:
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result = await self.hass.async_add_executor_job(
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create_credentials_and_validate,
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self.hass,
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self.host,
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user_input,
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zeroconf,
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)
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except SHCAuthenticationError:
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errors["base"] = "invalid_auth"
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except SHCConnectionError:
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errors["base"] = "cannot_connect"
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except SHCSessionError as err:
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_LOGGER.warning("Session error: %s", err.message)
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errors["base"] = "session_error"
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except SHCRegistrationError as err:
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_LOGGER.warning("Registration error: %s", err.message)
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errors["base"] = "pairing_failed"
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except Exception: # pylint: disable=broad-except
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_LOGGER.exception("Unexpected exception")
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errors["base"] = "unknown"
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else:
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entry_data = {
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CONF_SSL_CERTIFICATE: self.hass.config.path(DOMAIN, CONF_SHC_CERT),
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CONF_SSL_KEY: self.hass.config.path(DOMAIN, CONF_SHC_KEY),
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CONF_HOST: self.host,
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CONF_TOKEN: result["token"],
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CONF_HOSTNAME: result["token"].split(":", 1)[1],
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}
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existing_entry = await self.async_set_unique_id(self.info["unique_id"])
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if existing_entry:
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self.hass.config_entries.async_update_entry(
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existing_entry,
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data=entry_data,
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)
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await self.hass.config_entries.async_reload(existing_entry.entry_id)
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return self.async_abort(reason="reauth_successful")
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return self.async_create_entry(
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title=self.info["title"],
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data=entry_data,
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)
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else:
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user_input = {}
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schema = vol.Schema(
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{
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vol.Required(
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CONF_PASSWORD, default=user_input.get(CONF_PASSWORD, "")
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): str,
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}
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)
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return self.async_show_form(
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step_id="credentials", data_schema=schema, errors=errors
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)
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async def async_step_zeroconf(self, discovery_info):
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"""Handle zeroconf discovery."""
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if not discovery_info.get("name", "").startswith("Bosch SHC"):
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return self.async_abort(reason="not_bosch_shc")
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try:
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self.info = info = await self._get_info(discovery_info["host"])
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except SHCConnectionError:
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return self.async_abort(reason="cannot_connect")
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local_name = discovery_info["hostname"][:-1]
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node_name = local_name[: -len(".local")]
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await self.async_set_unique_id(info["unique_id"])
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self._abort_if_unique_id_configured({CONF_HOST: discovery_info["host"]})
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self.host = discovery_info["host"]
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self.context["title_placeholders"] = {"name": node_name}
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return await self.async_step_confirm_discovery()
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async def async_step_confirm_discovery(self, user_input=None):
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"""Handle discovery confirm."""
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errors = {}
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if user_input is not None:
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return await self.async_step_credentials()
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return self.async_show_form(
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step_id="confirm_discovery",
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description_placeholders={
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"model": "Bosch SHC",
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"host": self.host,
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},
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errors=errors,
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)
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async def _get_info(self, host):
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"""Get additional information."""
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zeroconf = await async_get_instance(self.hass)
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return await self.hass.async_add_executor_job(
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get_info_from_host,
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self.hass,
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host,
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zeroconf,
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)
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