214 lines
7.3 KiB
Python
214 lines
7.3 KiB
Python
"""Config flow to configure Philips Hue."""
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import asyncio
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from typing import Dict, Optional
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from urllib.parse import urlparse
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import aiohue
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from aiohue.discovery import discover_nupnp, normalize_bridge_id
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import async_timeout
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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 import ssdp
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from homeassistant.const import CONF_HOST
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from homeassistant.helpers import aiohttp_client
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from .bridge import authenticate_bridge
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from .const import ( # pylint: disable=unused-import
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CONF_ALLOW_HUE_GROUPS,
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DOMAIN,
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LOGGER,
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)
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from .errors import AuthenticationRequired, CannotConnect
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HUE_MANUFACTURERURL = "http://www.philips.com"
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HUE_IGNORED_BRIDGE_NAMES = ["Home Assistant Bridge", "Espalexa"]
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class HueFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
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"""Handle a Hue config flow."""
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VERSION = 1
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CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_POLL
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# pylint: disable=no-member # https://github.com/PyCQA/pylint/issues/3167
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def __init__(self):
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"""Initialize the Hue flow."""
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self.bridge: Optional[aiohue.Bridge] = None
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self.discovered_bridges: Optional[Dict[str, aiohue.Bridge]] = None
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async def async_step_user(self, user_input=None):
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"""Handle a flow initialized by the user."""
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# This is for backwards compatibility.
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return await self.async_step_init(user_input)
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@core.callback
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def _async_get_bridge(self, host: str, bridge_id: Optional[str] = None):
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"""Return a bridge object."""
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if bridge_id is not None:
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bridge_id = normalize_bridge_id(bridge_id)
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return aiohue.Bridge(
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host,
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websession=aiohttp_client.async_get_clientsession(self.hass),
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bridge_id=bridge_id,
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)
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async def async_step_init(self, user_input=None):
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"""Handle a flow start."""
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if (
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user_input is not None
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and self.discovered_bridges is not None
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and user_input["id"] in self.discovered_bridges
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):
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self.bridge = self.discovered_bridges[user_input["id"]]
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await self.async_set_unique_id(self.bridge.id, raise_on_progress=False)
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# We pass user input to link so it will attempt to link right away
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return await self.async_step_link({})
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try:
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with async_timeout.timeout(5):
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bridges = await discover_nupnp(
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websession=aiohttp_client.async_get_clientsession(self.hass)
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)
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except asyncio.TimeoutError:
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return self.async_abort(reason="discover_timeout")
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if not bridges:
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return self.async_abort(reason="no_bridges")
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# Find already configured hosts
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already_configured = self._async_current_ids(False)
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bridges = [bridge for bridge in bridges if bridge.id not in already_configured]
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if not bridges:
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return self.async_abort(reason="all_configured")
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if len(bridges) == 1:
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self.bridge = bridges[0]
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await self.async_set_unique_id(self.bridge.id, raise_on_progress=False)
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return await self.async_step_link()
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self.discovered_bridges = {bridge.id: bridge for bridge in bridges}
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return self.async_show_form(
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step_id="init",
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data_schema=vol.Schema(
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{
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vol.Required("id"): vol.In(
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{bridge.id: bridge.host for bridge in bridges}
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)
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}
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),
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)
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async def async_step_link(self, user_input=None):
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"""Attempt to link with the Hue bridge.
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Given a configured host, will ask the user to press the link button
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to connect to the bridge.
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"""
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if user_input is None:
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return self.async_show_form(step_id="link")
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bridge = self.bridge
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assert bridge is not None
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errors = {}
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try:
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await authenticate_bridge(self.hass, bridge)
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# Can happen if we come from import.
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if self.unique_id is None:
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await self.async_set_unique_id(
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normalize_bridge_id(bridge.id), raise_on_progress=False
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)
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return self.async_create_entry(
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title=bridge.config.name,
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data={
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"host": bridge.host,
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"username": bridge.username,
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CONF_ALLOW_HUE_GROUPS: False,
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},
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)
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except AuthenticationRequired:
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errors["base"] = "register_failed"
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except CannotConnect:
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LOGGER.error("Error connecting to the Hue bridge at %s", bridge.host)
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errors["base"] = "linking"
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except Exception: # pylint: disable=broad-except
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LOGGER.exception(
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"Unknown error connecting with Hue bridge at %s", bridge.host
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)
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errors["base"] = "linking"
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return self.async_show_form(step_id="link", errors=errors)
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async def async_step_ssdp(self, discovery_info):
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"""Handle a discovered Hue bridge.
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This flow is triggered by the SSDP component. It will check if the
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host is already configured and delegate to the import step if not.
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"""
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# Filter out non-Hue bridges #1
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if discovery_info.get(ssdp.ATTR_UPNP_MANUFACTURER_URL) != HUE_MANUFACTURERURL:
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return self.async_abort(reason="not_hue_bridge")
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# Filter out non-Hue bridges #2
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if any(
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name in discovery_info.get(ssdp.ATTR_UPNP_FRIENDLY_NAME, "")
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for name in HUE_IGNORED_BRIDGE_NAMES
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):
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return self.async_abort(reason="not_hue_bridge")
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if (
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ssdp.ATTR_SSDP_LOCATION not in discovery_info
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or ssdp.ATTR_UPNP_SERIAL not in discovery_info
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):
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return self.async_abort(reason="not_hue_bridge")
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host = urlparse(discovery_info[ssdp.ATTR_SSDP_LOCATION]).hostname
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bridge = self._async_get_bridge(host, discovery_info[ssdp.ATTR_UPNP_SERIAL])
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await self.async_set_unique_id(bridge.id)
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self._abort_if_unique_id_configured(updates={CONF_HOST: bridge.host})
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self.bridge = bridge
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return await self.async_step_link()
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async def async_step_homekit(self, homekit_info):
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"""Handle HomeKit discovery."""
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bridge = self._async_get_bridge(
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homekit_info["host"], homekit_info["properties"]["id"]
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)
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await self.async_set_unique_id(bridge.id)
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self._abort_if_unique_id_configured(updates={CONF_HOST: bridge.host})
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self.bridge = bridge
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return await self.async_step_link()
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async def async_step_import(self, import_info):
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"""Import a new bridge as a config entry.
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This flow is triggered by `async_setup` for both configured and
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discovered bridges. Triggered for any bridge that does not have a
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config entry yet (based on host).
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This flow is also triggered by `async_step_discovery`.
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"""
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# Check if host exists, abort if so.
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if any(
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import_info["host"] == entry.data["host"]
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for entry in self._async_current_entries()
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):
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return self.async_abort(reason="already_configured")
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self.bridge = self._async_get_bridge(import_info["host"])
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return await self.async_step_link()
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