329 lines
13 KiB
Python
329 lines
13 KiB
Python
# Some snippets of code are from the official wake_on_lan integration (inspiration for this custom component)
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from __future__ import annotations
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import asyncio
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import logging
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import subprocess as sp
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from typing import Any
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import voluptuous as vol
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import wakeonlan
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from homeassistant.components.switch import (SwitchEntity)
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.const import (
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CONF_BROADCAST_ADDRESS,
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CONF_BROADCAST_PORT,
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CONF_HOST,
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CONF_MAC,
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CONF_NAME,
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CONF_PASSWORD,
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CONF_PORT,
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CONF_USERNAME, )
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from homeassistant.core import HomeAssistant, ServiceResponse, SupportsResponse
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from homeassistant.exceptions import HomeAssistantError
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from homeassistant.helpers import (
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device_registry as dr,
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entity_platform,
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)
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from homeassistant.helpers.config_validation import make_entity_service_schema
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from paramiko.ssh_exception import AuthenticationException
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from . import utils
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from .const import SERVICE_RESTART_TO_WINDOWS_FROM_LINUX, SERVICE_PUT_COMPUTER_TO_SLEEP, \
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SERVICE_START_COMPUTER_TO_WINDOWS, SERVICE_RESTART_COMPUTER, SERVICE_RESTART_TO_LINUX_FROM_WINDOWS, \
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SERVICE_CHANGE_MONITORS_CONFIG, SERVICE_STEAM_BIG_PICTURE, SERVICE_CHANGE_AUDIO_CONFIG, SERVICE_DEBUG_INFO, DOMAIN
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_entry(
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hass: HomeAssistant,
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config: ConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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# Setup the computer switch
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mac_address: str = config.data.get(CONF_MAC)
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broadcast_address: str | None = config.data.get(CONF_BROADCAST_ADDRESS)
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broadcast_port: int | None = config.data.get(CONF_BROADCAST_PORT)
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host: str = config.data.get(CONF_HOST)
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name: str = config.data.get(CONF_NAME)
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dualboot: bool = config.data.get("dualboot")
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username: str = config.data.get(CONF_USERNAME)
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password: str = config.data.get(CONF_PASSWORD)
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port: int | None = config.data.get(CONF_PORT)
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# Register the computer switch
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async_add_entities(
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[
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ComputerSwitch(
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hass,
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name,
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host,
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mac_address,
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broadcast_address,
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broadcast_port,
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dualboot,
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username,
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password,
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port,
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),
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],
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host is not None,
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)
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platform = entity_platform.async_get_current_platform()
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# Synthax : (service_name: str, schema: dict, supports_response: SupportsResponse)
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services = [
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(SERVICE_RESTART_TO_WINDOWS_FROM_LINUX, {}, SupportsResponse.NONE),
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(SERVICE_RESTART_TO_WINDOWS_FROM_LINUX, {}, SupportsResponse.NONE),
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(SERVICE_RESTART_TO_LINUX_FROM_WINDOWS, {}, SupportsResponse.NONE),
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(SERVICE_PUT_COMPUTER_TO_SLEEP, {}, SupportsResponse.NONE),
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(SERVICE_START_COMPUTER_TO_WINDOWS, {}, SupportsResponse.NONE),
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(SERVICE_RESTART_COMPUTER, {}, SupportsResponse.NONE),
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(SERVICE_CHANGE_MONITORS_CONFIG, {vol.Required("monitors_config"): dict}, SupportsResponse.NONE),
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(SERVICE_STEAM_BIG_PICTURE, {vol.Required("action"): str}, SupportsResponse.NONE),
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(SERVICE_CHANGE_AUDIO_CONFIG, {
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vol.Optional("volume"): int,
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vol.Optional("mute"): bool,
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vol.Optional("input_device"): str,
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vol.Optional("output_device"): str
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}, SupportsResponse.NONE),
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(SERVICE_DEBUG_INFO, {}, SupportsResponse.ONLY),
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]
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# Register the services
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for service in services:
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platform.async_register_entity_service(
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service[0],
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make_entity_service_schema(service[1]),
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service[0],
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supports_response=service[2]
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)
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class ComputerSwitch(SwitchEntity):
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"""Representation of a computer switch."""
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def __init__(
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self,
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hass: HomeAssistant,
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name: str,
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host: str | None,
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mac_address: str,
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broadcast_address: str | None,
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broadcast_port: int | None,
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dualboot: bool | False,
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username: str,
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password: str,
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port: int | None,
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) -> None:
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"""Initialize the WOL switch."""
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self._hass = hass
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self._attr_name = name
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self._host = host
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self._mac_address = mac_address
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self._broadcast_address = broadcast_address
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self._broadcast_port = broadcast_port
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self._dualboot = dualboot
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self._username = username
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self._password = password
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self._port = port
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self._state = False
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self._attr_assumed_state = host is None
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self._attr_should_poll = bool(not self._attr_assumed_state)
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self._attr_unique_id = dr.format_mac(mac_address)
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self._attr_extra_state_attributes = {}
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self._connection = utils.create_ssh_connection(self._host, self._username, self._password)
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@property
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def device_info(self) -> DeviceInfo | None:
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"""Return the device information."""
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if self._host is None:
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return None
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return DeviceInfo(
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identifiers={(DOMAIN, self._host)},
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name=self._attr_name,
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manufacturer="Generic",
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model="Computer",
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sw_version=utils.get_operating_system_version(
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self._connection) if self._state else "Unknown",
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connections={(dr.CONNECTION_NETWORK_MAC, self._mac_address)},
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)
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@property
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def icon(self) -> str:
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"""Return the icon to use in the frontend, if any."""
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return "mdi:monitor" if self._state else "mdi:monitor-off"
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@property
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def is_on(self) -> bool:
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"""Return true if the computer switch is on."""
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return self._state
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def turn_on(self, **kwargs: Any) -> None:
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"""Turn the computer on using wake on lan."""
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service_kwargs: dict[str, Any] = {}
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if self._broadcast_address is not None:
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service_kwargs["ip_address"] = self._broadcast_address
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if self._broadcast_port is not None:
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service_kwargs["port"] = self._broadcast_port
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_LOGGER.debug(
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"Send magic packet to mac %s (broadcast: %s, port: %s)",
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self._mac_address,
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self._broadcast_address,
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self._broadcast_port,
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)
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wakeonlan.send_magic_packet(self._mac_address, **service_kwargs)
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if self._attr_assumed_state:
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self._state = True
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self.async_write_ha_state()
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def turn_off(self, **kwargs: Any) -> None:
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"""Turn the computer off using appropriate shutdown command based on running OS and/or distro."""
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utils.shutdown_system(self._connection)
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if self._attr_assumed_state:
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self._state = False
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self.async_write_ha_state()
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def restart_to_windows_from_linux(self) -> None:
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"""Restart the computer to Windows from a running Linux by setting grub-reboot and restarting."""
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if self._dualboot:
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utils.restart_to_windows_from_linux(self._connection)
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else:
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_LOGGER.error(
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"The computer with the IP address %s is not running a dualboot system or hasn't been configured "
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"correctly in the UI.",
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self._host)
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def restart_to_linux_from_windows(self) -> None:
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"""Restart the computer to Linux from a running Windows by setting grub-reboot and restarting."""
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if self._dualboot:
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# TODO: check for default grub entry and adapt accordingly
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utils.restart_system(self._connection)
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else:
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_LOGGER.error(
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"The computer with the IP address %s is not running a dualboot system or hasn't been configured "
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"correctly in the UI.",
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self._host)
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def put_computer_to_sleep(self) -> None:
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"""Put the computer to sleep using appropriate sleep command based on running OS and/or distro."""
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utils.sleep_system(self._connection)
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def start_computer_to_windows(self) -> None:
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"""Start the computer to Linux, wait for it to boot, and then set grub-reboot and restart."""
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self.turn_on()
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if self._dualboot:
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# Wait for the computer to boot using a dedicated thread to avoid blocking the main thread
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self._hass.loop.create_task(self.service_restart_to_windows_from_linux())
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else:
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_LOGGER.error(
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"The computer with the IP address %s is not running a dualboot system or hasn't been configured "
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"correctly in the UI.",
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self._host)
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async def service_restart_to_windows_from_linux(self) -> None:
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"""Method to be run in a separate thread to wait for the computer to boot and then reboot to Windows."""
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while not self.is_on:
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await asyncio.sleep(3)
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await utils.restart_to_windows_from_linux(self._connection)
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def restart_computer(self) -> None:
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"""Restart the computer using appropriate restart command based on running OS and/or distro."""
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# TODO: check for default grub entry and adapt accordingly
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if self._dualboot and not utils.is_unix_system(connection=self._connection):
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utils.restart_system(self._connection)
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# Wait for the computer to boot using a dedicated thread to avoid blocking the main thread
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self.restart_to_windows_from_linux()
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else:
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utils.restart_system(self._connection)
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def change_monitors_config(self, monitors_config: dict | None = None) -> None:
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"""Change the monitors configuration using a YAML config file."""
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if monitors_config is not None and len(monitors_config) > 0:
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utils.change_monitors_config(self._connection, monitors_config)
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else:
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raise HomeAssistantError("The 'monitors_config' parameter must be a non-empty dictionary.")
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def steam_big_picture(self, action: str) -> None:
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"""Controls Steam Big Picture mode."""
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if action is not None:
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utils.steam_big_picture(self._connection, action)
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else:
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raise HomeAssistantError("The 'action' parameter must be specified.")
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def change_audio_config(self, volume: int | None = None, mute: bool | None = None, input_device: str | None = None,
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output_device: str | None = None) -> None:
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"""Change the audio configuration using a YAML config file."""
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utils.change_audio_config(self._connection, volume, mute, input_device, output_device)
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def update(self) -> None:
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"""Ping the computer to see if it is online and update the state."""
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timeout = 1
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ping_cmd = ["ping", "-c", "1", "-W", str(timeout), str(self._host)]
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status = sp.call(ping_cmd, stdout=sp.DEVNULL, stderr=sp.DEVNULL)
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self._state = not bool(status)
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# Update the state attributes and the connection only if the computer is on
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if self._state:
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if self._connection is None or not utils.test_connection(self._connection):
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self.renew_ssh_connection()
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if not self._state:
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return
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self._attr_extra_state_attributes = {
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"operating_system": utils.get_operating_system(self._connection),
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"operating_system_version": utils.get_operating_system_version(self._connection),
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"mac_address": self._mac_address,
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"ip_address": self._host,
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}
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def renew_ssh_connection(self) -> None:
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"""Renew the SSH connection."""
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_LOGGER.info("Renewing SSH connection to %s using username %s", self._host, self._username)
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if self._connection is not None:
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self._connection.close()
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try:
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self._connection = utils.create_ssh_connection(self._host, self._username, self._password)
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self._connection.open()
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except AuthenticationException as error:
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_LOGGER.error("Could not authenticate to %s using username %s: %s", self._host, self._username, error)
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self._state = False
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except Exception as error:
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_LOGGER.error("Could not connect to %s using username %s: %s", self._host, self._username, error)
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# Check if the error is due to timeout
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if "timed out" in str(error):
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_LOGGER.warning(
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"Computer at %s does not respond to the SSH request. Possible causes: might be offline, "
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"the firewall is blocking the SSH port, or the SSH server is offline and/or misconfigured.",
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self._host
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)
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self._state = False
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def debug_info(self) -> ServiceResponse:
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"""Prints debug info."""
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return utils.get_debug_info(self._connection)
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