core/homeassistant/components/mqtt/lock.py

269 lines
9.1 KiB
Python

"""Support for MQTT locks."""
from __future__ import annotations
from collections.abc import Callable
import logging
import re
from typing import Any
import voluptuous as vol
from homeassistant.components import lock
from homeassistant.components.lock import LockEntity, LockEntityFeature
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
ATTR_CODE,
CONF_NAME,
CONF_OPTIMISTIC,
CONF_VALUE_TEMPLATE,
)
from homeassistant.core import HomeAssistant, callback
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.service_info.mqtt import ReceivePayloadType
from homeassistant.helpers.typing import ConfigType, TemplateVarsType
from . import subscription
from .config import MQTT_RW_SCHEMA
from .const import (
CONF_COMMAND_TEMPLATE,
CONF_COMMAND_TOPIC,
CONF_PAYLOAD_RESET,
CONF_STATE_OPEN,
CONF_STATE_OPENING,
CONF_STATE_TOPIC,
)
from .entity import MqttEntity, async_setup_entity_entry_helper
from .models import (
MqttCommandTemplate,
MqttValueTemplate,
PublishPayloadType,
ReceiveMessage,
)
from .schemas import MQTT_ENTITY_COMMON_SCHEMA
_LOGGER = logging.getLogger(__name__)
PARALLEL_UPDATES = 0
CONF_CODE_FORMAT = "code_format"
CONF_PAYLOAD_LOCK = "payload_lock"
CONF_PAYLOAD_UNLOCK = "payload_unlock"
CONF_PAYLOAD_OPEN = "payload_open"
CONF_STATE_LOCKED = "state_locked"
CONF_STATE_LOCKING = "state_locking"
CONF_STATE_UNLOCKED = "state_unlocked"
CONF_STATE_UNLOCKING = "state_unlocking"
CONF_STATE_JAMMED = "state_jammed"
DEFAULT_NAME = "MQTT Lock"
DEFAULT_PAYLOAD_LOCK = "LOCK"
DEFAULT_PAYLOAD_UNLOCK = "UNLOCK"
DEFAULT_PAYLOAD_OPEN = "OPEN"
DEFAULT_PAYLOAD_RESET = "None"
DEFAULT_STATE_LOCKED = "LOCKED"
DEFAULT_STATE_LOCKING = "LOCKING"
DEFAULT_STATE_OPEN = "OPEN"
DEFAULT_STATE_OPENING = "OPENING"
DEFAULT_STATE_UNLOCKED = "UNLOCKED"
DEFAULT_STATE_UNLOCKING = "UNLOCKING"
DEFAULT_STATE_JAMMED = "JAMMED"
MQTT_LOCK_ATTRIBUTES_BLOCKED = frozenset(
{
lock.ATTR_CHANGED_BY,
lock.ATTR_CODE_FORMAT,
}
)
PLATFORM_SCHEMA_MODERN = MQTT_RW_SCHEMA.extend(
{
vol.Optional(CONF_CODE_FORMAT): cv.is_regex,
vol.Optional(CONF_COMMAND_TEMPLATE): cv.template,
vol.Optional(CONF_NAME): vol.Any(cv.string, None),
vol.Optional(CONF_PAYLOAD_LOCK, default=DEFAULT_PAYLOAD_LOCK): cv.string,
vol.Optional(CONF_PAYLOAD_UNLOCK, default=DEFAULT_PAYLOAD_UNLOCK): cv.string,
vol.Optional(CONF_PAYLOAD_OPEN): cv.string,
vol.Optional(CONF_PAYLOAD_RESET, default=DEFAULT_PAYLOAD_RESET): cv.string,
vol.Optional(CONF_STATE_JAMMED, default=DEFAULT_STATE_JAMMED): cv.string,
vol.Optional(CONF_STATE_LOCKED, default=DEFAULT_STATE_LOCKED): cv.string,
vol.Optional(CONF_STATE_LOCKING, default=DEFAULT_STATE_LOCKING): cv.string,
vol.Optional(CONF_STATE_OPEN, default=DEFAULT_STATE_OPEN): cv.string,
vol.Optional(CONF_STATE_OPENING, default=DEFAULT_STATE_OPENING): cv.string,
vol.Optional(CONF_STATE_UNLOCKED, default=DEFAULT_STATE_UNLOCKED): cv.string,
vol.Optional(CONF_STATE_UNLOCKING, default=DEFAULT_STATE_UNLOCKING): cv.string,
vol.Optional(CONF_VALUE_TEMPLATE): cv.template,
}
).extend(MQTT_ENTITY_COMMON_SCHEMA.schema)
DISCOVERY_SCHEMA = PLATFORM_SCHEMA_MODERN.extend({}, extra=vol.REMOVE_EXTRA)
STATE_CONFIG_KEYS = [
CONF_STATE_JAMMED,
CONF_STATE_LOCKED,
CONF_STATE_LOCKING,
CONF_STATE_OPEN,
CONF_STATE_OPENING,
CONF_STATE_UNLOCKED,
CONF_STATE_UNLOCKING,
]
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up MQTT lock through YAML and through MQTT discovery."""
async_setup_entity_entry_helper(
hass,
config_entry,
MqttLock,
lock.DOMAIN,
async_add_entities,
DISCOVERY_SCHEMA,
PLATFORM_SCHEMA_MODERN,
)
class MqttLock(MqttEntity, LockEntity):
"""Representation of a lock that can be toggled using MQTT."""
_default_name = DEFAULT_NAME
_entity_id_format = lock.ENTITY_ID_FORMAT
_attributes_extra_blocked = MQTT_LOCK_ATTRIBUTES_BLOCKED
_compiled_pattern: re.Pattern[Any] | None
_optimistic: bool
_valid_states: list[str]
_command_template: Callable[
[PublishPayloadType, TemplateVarsType], PublishPayloadType
]
_value_template: Callable[[ReceivePayloadType], ReceivePayloadType]
@staticmethod
def config_schema() -> vol.Schema:
"""Return the config schema."""
return DISCOVERY_SCHEMA
def _setup_from_config(self, config: ConfigType) -> None:
"""(Re)Setup the entity."""
if (
optimistic := config[CONF_OPTIMISTIC]
or config.get(CONF_STATE_TOPIC) is None
):
self._attr_is_locked = False
self._optimistic = optimistic
self._attr_assumed_state = bool(optimistic)
self._compiled_pattern = config.get(CONF_CODE_FORMAT)
self._attr_code_format = (
self._compiled_pattern.pattern if self._compiled_pattern else None
)
self._command_template = MqttCommandTemplate(
config.get(CONF_COMMAND_TEMPLATE), entity=self
).async_render
self._value_template = MqttValueTemplate(
config.get(CONF_VALUE_TEMPLATE),
entity=self,
).async_render_with_possible_json_value
self._attr_supported_features = LockEntityFeature(0)
if CONF_PAYLOAD_OPEN in config:
self._attr_supported_features |= LockEntityFeature.OPEN
self._valid_states = [config[state] for state in STATE_CONFIG_KEYS]
@callback
def _message_received(self, msg: ReceiveMessage) -> None:
"""Handle new lock state messages."""
payload = self._value_template(msg.payload)
if not payload.strip(): # No output from template, ignore
_LOGGER.debug(
"Ignoring empty payload '%s' after rendering for topic %s",
payload,
msg.topic,
)
return
if payload == self._config[CONF_PAYLOAD_RESET]:
# Reset the state to `unknown`
self._attr_is_locked = None
elif payload in self._valid_states:
self._attr_is_locked = payload == self._config[CONF_STATE_LOCKED]
self._attr_is_locking = payload == self._config[CONF_STATE_LOCKING]
self._attr_is_open = payload == self._config[CONF_STATE_OPEN]
self._attr_is_opening = payload == self._config[CONF_STATE_OPENING]
self._attr_is_unlocking = payload == self._config[CONF_STATE_UNLOCKING]
self._attr_is_jammed = payload == self._config[CONF_STATE_JAMMED]
@callback
def _prepare_subscribe_topics(self) -> None:
"""(Re)Subscribe to topics."""
self.add_subscription(
CONF_STATE_TOPIC,
self._message_received,
{
"_attr_is_jammed",
"_attr_is_locked",
"_attr_is_locking",
"_attr_is_open",
"_attr_is_opening",
"_attr_is_unlocking",
},
)
async def _subscribe_topics(self) -> None:
"""(Re)Subscribe to topics."""
subscription.async_subscribe_topics_internal(self.hass, self._sub_state)
async def async_lock(self, **kwargs: Any) -> None:
"""Lock the device.
This method is a coroutine.
"""
tpl_vars: TemplateVarsType = {
ATTR_CODE: kwargs.get(ATTR_CODE) if kwargs else None
}
payload = self._command_template(self._config[CONF_PAYLOAD_LOCK], tpl_vars)
await self.async_publish_with_config(self._config[CONF_COMMAND_TOPIC], payload)
if self._optimistic:
# Optimistically assume that the lock has changed state.
self._attr_is_locked = True
self.async_write_ha_state()
async def async_unlock(self, **kwargs: Any) -> None:
"""Unlock the device.
This method is a coroutine.
"""
tpl_vars: TemplateVarsType = {
ATTR_CODE: kwargs.get(ATTR_CODE) if kwargs else None
}
payload = self._command_template(self._config[CONF_PAYLOAD_UNLOCK], tpl_vars)
await self.async_publish_with_config(self._config[CONF_COMMAND_TOPIC], payload)
if self._optimistic:
# Optimistically assume that the lock has changed state.
self._attr_is_locked = False
self.async_write_ha_state()
async def async_open(self, **kwargs: Any) -> None:
"""Open the door latch.
This method is a coroutine.
"""
tpl_vars: TemplateVarsType = {
ATTR_CODE: kwargs.get(ATTR_CODE) if kwargs else None
}
payload = self._command_template(self._config[CONF_PAYLOAD_OPEN], tpl_vars)
await self.async_publish_with_config(self._config[CONF_COMMAND_TOPIC], payload)
if self._optimistic:
# Optimistically assume that the lock unlocks when opened.
self._attr_is_open = True
self.async_write_ha_state()