core/homeassistant/components/bsblan/config_flow.py

359 lines
13 KiB
Python

"""Config flow for BSB-Lan integration."""
from __future__ import annotations
from collections.abc import Mapping
from typing import Any
from bsblan import BSBLAN, BSBLANAuthError, BSBLANConfig, BSBLANError
import voluptuous as vol
from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_PORT, CONF_USERNAME
from homeassistant.core import callback
from homeassistant.helpers.aiohttp_client import async_get_clientsession
from homeassistant.helpers.device_registry import format_mac
from homeassistant.helpers.service_info.zeroconf import ZeroconfServiceInfo
from .const import CONF_PASSKEY, DEFAULT_PORT, DOMAIN
class BSBLANFlowHandler(ConfigFlow, domain=DOMAIN):
"""Handle a BSBLAN config flow."""
VERSION = 1
def __init__(self) -> None:
"""Initialize BSBLan flow."""
self.host: str = ""
self.port: int = DEFAULT_PORT
self.mac: str | None = None
self.passkey: str | None = None
self.username: str | None = None
self.password: str | None = None
self._auth_required = True
async def async_step_user(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Handle a flow initiated by the user."""
if user_input is None:
return self._show_setup_form()
self.host = user_input[CONF_HOST]
self.port = user_input[CONF_PORT]
self.passkey = user_input.get(CONF_PASSKEY)
self.username = user_input.get(CONF_USERNAME)
self.password = user_input.get(CONF_PASSWORD)
return await self._validate_and_create(user_input)
async def async_step_zeroconf(
self, discovery_info: ZeroconfServiceInfo
) -> ConfigFlowResult:
"""Handle Zeroconf discovery."""
self.host = str(discovery_info.ip_address)
self.port = discovery_info.port or DEFAULT_PORT
# Get MAC from properties
self.mac = discovery_info.properties.get("mac")
# If MAC was found in zeroconf, use it immediately
if self.mac:
await self.async_set_unique_id(format_mac(self.mac))
self._abort_if_unique_id_configured(
updates={
CONF_HOST: self.host,
CONF_PORT: self.port,
}
)
else:
# MAC not available from zeroconf - check for existing host/port first
self._async_abort_entries_match(
{CONF_HOST: self.host, CONF_PORT: self.port}
)
# Try to get device info without authentication to minimize discovery popup
config = BSBLANConfig(host=self.host, port=self.port)
session = async_get_clientsession(self.hass)
bsblan = BSBLAN(config, session)
try:
device = await bsblan.device()
except BSBLANError:
# Device requires authentication - proceed to discovery confirm
self.mac = None
else:
self.mac = device.MAC
# Got MAC without auth - set unique ID and check for existing device
await self.async_set_unique_id(format_mac(self.mac))
self._abort_if_unique_id_configured(
updates={
CONF_HOST: self.host,
CONF_PORT: self.port,
}
)
# No auth needed, so we can proceed to a confirmation step without fields
self._auth_required = False
# Proceed to get credentials
self.context["title_placeholders"] = {"name": f"BSBLAN {self.host}"}
return await self.async_step_discovery_confirm()
async def async_step_discovery_confirm(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Handle getting credentials for discovered device."""
if user_input is None:
data_schema = vol.Schema(
{
vol.Optional(CONF_PASSKEY): str,
vol.Optional(CONF_USERNAME): str,
vol.Optional(CONF_PASSWORD): str,
}
)
if not self._auth_required:
data_schema = vol.Schema({})
return self.async_show_form(
step_id="discovery_confirm",
data_schema=data_schema,
description_placeholders={"host": str(self.host)},
)
if not self._auth_required:
return self._async_create_entry()
self.passkey = user_input.get(CONF_PASSKEY)
self.username = user_input.get(CONF_USERNAME)
self.password = user_input.get(CONF_PASSWORD)
return await self._validate_and_create(user_input, is_discovery=True)
async def _validate_and_create(
self, user_input: dict[str, Any], is_discovery: bool = False
) -> ConfigFlowResult:
"""Validate device connection and create entry."""
try:
await self._get_bsblan_info()
except BSBLANAuthError:
if is_discovery:
return self.async_show_form(
step_id="discovery_confirm",
data_schema=vol.Schema(
{
vol.Optional(CONF_PASSKEY): str,
vol.Optional(CONF_USERNAME): str,
vol.Optional(CONF_PASSWORD): str,
}
),
errors={"base": "invalid_auth"},
description_placeholders={"host": str(self.host)},
)
return self._show_setup_form({"base": "invalid_auth"}, user_input)
except BSBLANError:
if is_discovery:
return self.async_show_form(
step_id="discovery_confirm",
data_schema=vol.Schema(
{
vol.Optional(CONF_PASSKEY): str,
vol.Optional(CONF_USERNAME): str,
vol.Optional(CONF_PASSWORD): str,
}
),
errors={"base": "cannot_connect"},
description_placeholders={"host": str(self.host)},
)
return self._show_setup_form({"base": "cannot_connect"})
return self._async_create_entry()
async def async_step_reauth(
self, entry_data: Mapping[str, Any]
) -> ConfigFlowResult:
"""Handle reauth flow."""
return await self.async_step_reauth_confirm()
async def async_step_reauth_confirm(
self, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Handle reauth confirmation flow."""
existing_entry = self.hass.config_entries.async_get_entry(
self.context["entry_id"]
)
assert existing_entry
if user_input is None:
# Preserve existing values as defaults
return self.async_show_form(
step_id="reauth_confirm",
data_schema=vol.Schema(
{
vol.Optional(
CONF_PASSKEY,
default=existing_entry.data.get(
CONF_PASSKEY, vol.UNDEFINED
),
): str,
vol.Optional(
CONF_USERNAME,
default=existing_entry.data.get(
CONF_USERNAME, vol.UNDEFINED
),
): str,
vol.Optional(
CONF_PASSWORD,
default=vol.UNDEFINED,
): str,
}
),
)
# Combine existing data with the user's new input for validation.
# This correctly handles adding, changing, and clearing credentials.
config_data = existing_entry.data.copy()
config_data.update(user_input)
self.host = config_data[CONF_HOST]
self.port = config_data[CONF_PORT]
self.passkey = config_data.get(CONF_PASSKEY)
self.username = config_data.get(CONF_USERNAME)
self.password = config_data.get(CONF_PASSWORD)
try:
await self._get_bsblan_info(raise_on_progress=False, is_reauth=True)
except BSBLANAuthError:
return self.async_show_form(
step_id="reauth_confirm",
data_schema=vol.Schema(
{
vol.Optional(
CONF_PASSKEY,
default=user_input.get(CONF_PASSKEY, vol.UNDEFINED),
): str,
vol.Optional(
CONF_USERNAME,
default=user_input.get(CONF_USERNAME, vol.UNDEFINED),
): str,
vol.Optional(
CONF_PASSWORD,
default=vol.UNDEFINED,
): str,
}
),
errors={"base": "invalid_auth"},
)
except BSBLANError:
return self.async_show_form(
step_id="reauth_confirm",
data_schema=vol.Schema(
{
vol.Optional(
CONF_PASSKEY,
default=user_input.get(CONF_PASSKEY, vol.UNDEFINED),
): str,
vol.Optional(
CONF_USERNAME,
default=user_input.get(CONF_USERNAME, vol.UNDEFINED),
): str,
vol.Optional(
CONF_PASSWORD,
default=vol.UNDEFINED,
): str,
}
),
errors={"base": "cannot_connect"},
)
# Update only the fields that were provided by the user
return self.async_update_reload_and_abort(
existing_entry, data_updates=user_input, reason="reauth_successful"
)
@callback
def _show_setup_form(
self, errors: dict | None = None, user_input: dict[str, Any] | None = None
) -> ConfigFlowResult:
"""Show the setup form to the user."""
# Preserve user input if provided, otherwise use defaults
defaults = user_input or {}
return self.async_show_form(
step_id="user",
data_schema=vol.Schema(
{
vol.Required(
CONF_HOST, default=defaults.get(CONF_HOST, vol.UNDEFINED)
): str,
vol.Optional(
CONF_PORT, default=defaults.get(CONF_PORT, DEFAULT_PORT)
): int,
vol.Optional(
CONF_PASSKEY, default=defaults.get(CONF_PASSKEY, vol.UNDEFINED)
): str,
vol.Optional(
CONF_USERNAME,
default=defaults.get(CONF_USERNAME, vol.UNDEFINED),
): str,
vol.Optional(
CONF_PASSWORD,
default=defaults.get(CONF_PASSWORD, vol.UNDEFINED),
): str,
}
),
errors=errors or {},
)
@callback
def _async_create_entry(self) -> ConfigFlowResult:
"""Create the config entry."""
return self.async_create_entry(
title=format_mac(self.mac),
data={
CONF_HOST: self.host,
CONF_PORT: self.port,
CONF_PASSKEY: self.passkey,
CONF_USERNAME: self.username,
CONF_PASSWORD: self.password,
},
)
async def _get_bsblan_info(
self,
raise_on_progress: bool = True,
is_reauth: bool = False,
) -> None:
"""Get device information from a BSBLAN device."""
config = BSBLANConfig(
host=self.host,
passkey=self.passkey,
port=self.port,
username=self.username,
password=self.password,
)
session = async_get_clientsession(self.hass)
bsblan = BSBLAN(config, session)
device = await bsblan.device()
retrieved_mac = device.MAC
# Handle unique ID assignment based on whether MAC was available from zeroconf
if not self.mac:
# MAC wasn't available from zeroconf, now we have it from API
self.mac = retrieved_mac
await self.async_set_unique_id(
format_mac(self.mac), raise_on_progress=raise_on_progress
)
# Skip unique_id configuration check during reauth to prevent "already_configured" abort
if not is_reauth:
# Always allow updating host/port for both user and discovery flows
# This ensures connectivity is maintained when devices change IP addresses
self._abort_if_unique_id_configured(
updates={
CONF_HOST: self.host,
CONF_PORT: self.port,
}
)