mirror of
https://github.com/home-assistant/core
synced 2024-08-28 03:36:46 +02:00
377 lines
13 KiB
Python
377 lines
13 KiB
Python
"""Config flow for Elk-M1 Control integration."""
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from __future__ import annotations
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import asyncio
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import logging
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from typing import Any
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from elkm1_lib.discovery import ElkSystem
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from elkm1_lib.elk import Elk
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import voluptuous as vol
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from homeassistant import config_entries, exceptions
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from homeassistant.components import dhcp
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from homeassistant.const import (
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CONF_ADDRESS,
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CONF_HOST,
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CONF_PASSWORD,
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CONF_PREFIX,
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CONF_PROTOCOL,
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CONF_USERNAME,
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)
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from homeassistant.data_entry_flow import FlowResult
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from homeassistant.helpers import device_registry as dr
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from homeassistant.helpers.typing import DiscoveryInfoType
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from homeassistant.util import slugify
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from homeassistant.util.network import is_ip_address
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from . import async_wait_for_elk_to_sync, hostname_from_url
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from .const import CONF_AUTO_CONFIGURE, DISCOVER_SCAN_TIMEOUT, DOMAIN, LOGIN_TIMEOUT
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from .discovery import (
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_short_mac,
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async_discover_device,
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async_discover_devices,
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async_update_entry_from_discovery,
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)
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CONF_DEVICE = "device"
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NON_SECURE_PORT = 2101
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SECURE_PORT = 2601
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STANDARD_PORTS = {NON_SECURE_PORT, SECURE_PORT}
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_LOGGER = logging.getLogger(__name__)
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PROTOCOL_MAP = {
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"secure": "elks://",
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"TLS 1.2": "elksv1_2://",
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"non-secure": "elk://",
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"serial": "serial://",
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}
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VALIDATE_TIMEOUT = 35
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BASE_SCHEMA = {
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vol.Optional(CONF_USERNAME, default=""): str,
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vol.Optional(CONF_PASSWORD, default=""): str,
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}
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SECURE_PROTOCOLS = ["secure", "TLS 1.2"]
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ALL_PROTOCOLS = [*SECURE_PROTOCOLS, "non-secure", "serial"]
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DEFAULT_SECURE_PROTOCOL = "secure"
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DEFAULT_NON_SECURE_PROTOCOL = "non-secure"
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PORT_PROTOCOL_MAP = {
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NON_SECURE_PORT: DEFAULT_NON_SECURE_PROTOCOL,
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SECURE_PORT: DEFAULT_SECURE_PROTOCOL,
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}
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async def validate_input(data: dict[str, str], mac: str | None) -> dict[str, str]:
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"""Validate the user input allows us to connect.
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Data has the keys from DATA_SCHEMA with values provided by the user.
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"""
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userid = data.get(CONF_USERNAME)
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password = data.get(CONF_PASSWORD)
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prefix = data[CONF_PREFIX]
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url = _make_url_from_data(data)
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requires_password = url.startswith("elks://") or url.startswith("elksv1_2")
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if requires_password and (not userid or not password):
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raise InvalidAuth
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elk = Elk(
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{"url": url, "userid": userid, "password": password, "element_list": ["panel"]}
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)
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elk.connect()
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try:
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if not await async_wait_for_elk_to_sync(elk, LOGIN_TIMEOUT, VALIDATE_TIMEOUT):
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raise InvalidAuth
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finally:
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elk.disconnect()
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short_mac = _short_mac(mac) if mac else None
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if prefix and prefix != short_mac:
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device_name = prefix
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elif mac:
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device_name = f"ElkM1 {short_mac}"
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else:
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device_name = "ElkM1"
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return {"title": device_name, CONF_HOST: url, CONF_PREFIX: slugify(prefix)}
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def _address_from_discovery(device: ElkSystem) -> str:
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"""Append the port only if its non-standard."""
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if device.port in STANDARD_PORTS:
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return device.ip_address
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return f"{device.ip_address}:{device.port}"
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def _make_url_from_data(data: dict[str, str]) -> str:
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if host := data.get(CONF_HOST):
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return host
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protocol = PROTOCOL_MAP[data[CONF_PROTOCOL]]
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address = data[CONF_ADDRESS]
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return f"{protocol}{address}"
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def _placeholders_from_device(device: ElkSystem) -> dict[str, str]:
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return {
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"mac_address": _short_mac(device.mac_address),
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"host": _address_from_discovery(device),
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}
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class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
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"""Handle a config flow for Elk-M1 Control."""
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VERSION = 1
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def __init__(self) -> None:
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"""Initialize the elkm1 config flow."""
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self._discovered_device: ElkSystem | None = None
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self._discovered_devices: dict[str, ElkSystem] = {}
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async def async_step_dhcp(self, discovery_info: dhcp.DhcpServiceInfo) -> FlowResult:
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"""Handle discovery via dhcp."""
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self._discovered_device = ElkSystem(
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discovery_info.macaddress, discovery_info.ip, 0
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)
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_LOGGER.debug("Elk discovered from dhcp: %s", self._discovered_device)
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return await self._async_handle_discovery()
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async def async_step_integration_discovery(
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self, discovery_info: DiscoveryInfoType
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) -> FlowResult:
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"""Handle integration discovery."""
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self._discovered_device = ElkSystem(
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discovery_info["mac_address"],
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discovery_info["ip_address"],
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discovery_info["port"],
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)
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_LOGGER.debug(
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"Elk discovered from integration discovery: %s", self._discovered_device
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)
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return await self._async_handle_discovery()
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async def _async_handle_discovery(self) -> FlowResult:
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"""Handle any discovery."""
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device = self._discovered_device
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assert device is not None
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mac = dr.format_mac(device.mac_address)
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host = device.ip_address
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await self.async_set_unique_id(mac)
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for entry in self._async_current_entries(include_ignore=False):
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if (
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entry.unique_id == mac
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or hostname_from_url(entry.data[CONF_HOST]) == host
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):
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if async_update_entry_from_discovery(self.hass, entry, device):
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self.hass.async_create_task(
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self.hass.config_entries.async_reload(entry.entry_id)
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)
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return self.async_abort(reason="already_configured")
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self.context[CONF_HOST] = host
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for progress in self._async_in_progress():
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if progress.get("context", {}).get(CONF_HOST) == host:
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return self.async_abort(reason="already_in_progress")
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# Handled ignored case since _async_current_entries
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# is called with include_ignore=False
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self._abort_if_unique_id_configured()
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if not device.port:
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if discovered_device := await async_discover_device(self.hass, host):
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self._discovered_device = discovered_device
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else:
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return self.async_abort(reason="cannot_connect")
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return await self.async_step_discovery_confirm()
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async def async_step_discovery_confirm(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Confirm discovery."""
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assert self._discovered_device is not None
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self.context["title_placeholders"] = _placeholders_from_device(
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self._discovered_device
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)
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return await self.async_step_discovered_connection()
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async def async_step_user(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Handle the initial step."""
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if user_input is not None:
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if mac := user_input[CONF_DEVICE]:
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await self.async_set_unique_id(mac, raise_on_progress=False)
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self._discovered_device = self._discovered_devices[mac]
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return await self.async_step_discovered_connection()
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return await self.async_step_manual_connection()
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current_unique_ids = self._async_current_ids()
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current_hosts = {
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hostname_from_url(entry.data[CONF_HOST])
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for entry in self._async_current_entries(include_ignore=False)
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}
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discovered_devices = await async_discover_devices(
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self.hass, DISCOVER_SCAN_TIMEOUT
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)
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self._discovered_devices = {
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dr.format_mac(device.mac_address): device for device in discovered_devices
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}
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devices_name: dict[str | None, str] = {
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mac: f"{_short_mac(device.mac_address)} ({device.ip_address})"
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for mac, device in self._discovered_devices.items()
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if mac not in current_unique_ids and device.ip_address not in current_hosts
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}
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if not devices_name:
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return await self.async_step_manual_connection()
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devices_name[None] = "Manual Entry"
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return self.async_show_form(
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step_id="user",
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data_schema=vol.Schema({vol.Required(CONF_DEVICE): vol.In(devices_name)}),
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)
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async def _async_create_or_error(
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self, user_input: dict[str, Any], importing: bool
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) -> tuple[dict[str, str] | None, FlowResult | None]:
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"""Try to connect and create the entry or error."""
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if self._url_already_configured(_make_url_from_data(user_input)):
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return None, self.async_abort(reason="address_already_configured")
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try:
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info = await validate_input(user_input, self.unique_id)
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except asyncio.TimeoutError:
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return {"base": "cannot_connect"}, None
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except InvalidAuth:
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return {CONF_PASSWORD: "invalid_auth"}, None
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except Exception: # pylint: disable=broad-except
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_LOGGER.exception("Unexpected exception")
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return {"base": "unknown"}, None
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if importing:
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return None, self.async_create_entry(title=info["title"], data=user_input)
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return None, self.async_create_entry(
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title=info["title"],
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data={
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CONF_HOST: info[CONF_HOST],
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CONF_USERNAME: user_input[CONF_USERNAME],
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CONF_PASSWORD: user_input[CONF_PASSWORD],
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CONF_AUTO_CONFIGURE: True,
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CONF_PREFIX: info[CONF_PREFIX],
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},
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)
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async def async_step_discovered_connection(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Handle connecting the device when we have a discovery."""
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errors: dict[str, str] | None = {}
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device = self._discovered_device
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assert device is not None
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if user_input is not None:
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user_input[CONF_ADDRESS] = _address_from_discovery(device)
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if self._async_current_entries():
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user_input[CONF_PREFIX] = _short_mac(device.mac_address)
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else:
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user_input[CONF_PREFIX] = ""
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errors, result = await self._async_create_or_error(user_input, False)
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if result is not None:
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return result
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default_proto = PORT_PROTOCOL_MAP.get(device.port, DEFAULT_SECURE_PROTOCOL)
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return self.async_show_form(
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step_id="discovered_connection",
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data_schema=vol.Schema(
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{
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**BASE_SCHEMA,
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vol.Required(CONF_PROTOCOL, default=default_proto): vol.In(
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ALL_PROTOCOLS
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),
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}
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),
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errors=errors,
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description_placeholders=_placeholders_from_device(device),
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)
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async def async_step_manual_connection(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Handle connecting the device when we need manual entry."""
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errors: dict[str, str] | None = {}
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if user_input is not None:
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# We might be able to discover the device via directed UDP
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# in case its on another subnet
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if device := await async_discover_device(
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self.hass, user_input[CONF_ADDRESS]
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):
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await self.async_set_unique_id(
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dr.format_mac(device.mac_address), raise_on_progress=False
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)
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self._abort_if_unique_id_configured()
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# Ignore the port from discovery since its always going to be
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# 2601 if secure is turned on even though they may want insecure
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user_input[CONF_ADDRESS] = device.ip_address
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errors, result = await self._async_create_or_error(user_input, False)
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if result is not None:
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return result
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return self.async_show_form(
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step_id="manual_connection",
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data_schema=vol.Schema(
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{
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**BASE_SCHEMA,
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vol.Required(CONF_ADDRESS): str,
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vol.Optional(CONF_PREFIX, default=""): str,
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vol.Required(
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CONF_PROTOCOL, default=DEFAULT_SECURE_PROTOCOL
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): vol.In(ALL_PROTOCOLS),
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}
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),
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errors=errors,
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)
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async def async_step_import(self, user_input: dict[str, Any]) -> FlowResult:
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"""Handle import."""
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_LOGGER.debug("Elk is importing from yaml")
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url = _make_url_from_data(user_input)
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if self._url_already_configured(url):
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return self.async_abort(reason="address_already_configured")
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host = hostname_from_url(url)
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_LOGGER.debug(
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"Importing is trying to fill unique id from discovery for %s", host
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)
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if (
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host
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and is_ip_address(host)
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and (device := await async_discover_device(self.hass, host))
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):
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await self.async_set_unique_id(
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dr.format_mac(device.mac_address), raise_on_progress=False
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)
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self._abort_if_unique_id_configured()
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errors, result = await self._async_create_or_error(user_input, True)
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if errors:
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return self.async_abort(reason=list(errors.values())[0])
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assert result is not None
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return result
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def _url_already_configured(self, url: str) -> bool:
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"""See if we already have a elkm1 matching user input configured."""
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existing_hosts = {
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hostname_from_url(entry.data[CONF_HOST])
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for entry in self._async_current_entries()
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}
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return hostname_from_url(url) in existing_hosts
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class InvalidAuth(exceptions.HomeAssistantError):
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"""Error to indicate there is invalid auth."""
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