core/homeassistant/components/logbook.py

385 lines
13 KiB
Python

"""
Event parser and human readable log generator.
For more details about this component, please refer to the documentation at
https://home-assistant.io/components/logbook/
"""
import asyncio
import logging
from datetime import timedelta
from itertools import groupby
import voluptuous as vol
from homeassistant.core import callback
import homeassistant.helpers.config_validation as cv
import homeassistant.util.dt as dt_util
from homeassistant.components import sun
from homeassistant.components.http import HomeAssistantView
from homeassistant.const import (
EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP, EVENT_STATE_CHANGED,
STATE_NOT_HOME, STATE_OFF, STATE_ON, ATTR_HIDDEN, HTTP_BAD_REQUEST,
EVENT_LOGBOOK_ENTRY)
from homeassistant.core import State, split_entity_id, DOMAIN as HA_DOMAIN
DOMAIN = 'logbook'
DEPENDENCIES = ['recorder', 'frontend']
_LOGGER = logging.getLogger(__name__)
CONF_EXCLUDE = 'exclude'
CONF_INCLUDE = 'include'
CONF_ENTITIES = 'entities'
CONF_DOMAINS = 'domains'
CONFIG_SCHEMA = vol.Schema({
DOMAIN: vol.Schema({
CONF_EXCLUDE: vol.Schema({
vol.Optional(CONF_ENTITIES, default=[]): cv.entity_ids,
vol.Optional(CONF_DOMAINS, default=[]): vol.All(cv.ensure_list,
[cv.string])
}),
CONF_INCLUDE: vol.Schema({
vol.Optional(CONF_ENTITIES, default=[]): cv.entity_ids,
vol.Optional(CONF_DOMAINS, default=[]): vol.All(cv.ensure_list,
[cv.string])
})
}),
}, extra=vol.ALLOW_EXTRA)
GROUP_BY_MINUTES = 15
CONTINUOUS_DOMAINS = ['proximity', 'sensor']
ATTR_NAME = 'name'
ATTR_MESSAGE = 'message'
ATTR_DOMAIN = 'domain'
ATTR_ENTITY_ID = 'entity_id'
LOG_MESSAGE_SCHEMA = vol.Schema({
vol.Required(ATTR_NAME): cv.string,
vol.Required(ATTR_MESSAGE): cv.template,
vol.Optional(ATTR_DOMAIN): cv.slug,
vol.Optional(ATTR_ENTITY_ID): cv.entity_id,
})
def log_entry(hass, name, message, domain=None, entity_id=None):
"""Add an entry to the logbook."""
hass.add_job(async_log_entry, hass, name, message, domain, entity_id)
def async_log_entry(hass, name, message, domain=None, entity_id=None):
"""Add an entry to the logbook."""
data = {
ATTR_NAME: name,
ATTR_MESSAGE: message
}
if domain is not None:
data[ATTR_DOMAIN] = domain
if entity_id is not None:
data[ATTR_ENTITY_ID] = entity_id
hass.bus.async_fire(EVENT_LOGBOOK_ENTRY, data)
@asyncio.coroutine
def setup(hass, config):
"""Listen for download events to download files."""
@callback
def log_message(service):
"""Handle sending notification message service calls."""
message = service.data[ATTR_MESSAGE]
name = service.data[ATTR_NAME]
domain = service.data.get(ATTR_DOMAIN)
entity_id = service.data.get(ATTR_ENTITY_ID)
message.hass = hass
message = message.async_render()
async_log_entry(hass, name, message, domain, entity_id)
hass.http.register_view(LogbookView(config.get(DOMAIN, {})))
yield from hass.components.frontend.async_register_built_in_panel(
'logbook', 'logbook', 'mdi:format-list-bulleted-type')
hass.services.async_register(
DOMAIN, 'log', log_message, schema=LOG_MESSAGE_SCHEMA)
return True
class LogbookView(HomeAssistantView):
"""Handle logbook view requests."""
url = '/api/logbook'
name = 'api:logbook'
extra_urls = ['/api/logbook/{datetime}']
def __init__(self, config):
"""Initialize the logbook view."""
self.config = config
@asyncio.coroutine
def get(self, request, datetime=None):
"""Retrieve logbook entries."""
if datetime:
datetime = dt_util.parse_datetime(datetime)
if datetime is None:
return self.json_message('Invalid datetime', HTTP_BAD_REQUEST)
else:
datetime = dt_util.start_of_local_day()
start_day = dt_util.as_utc(datetime)
end_day = start_day + timedelta(days=1)
hass = request.app['hass']
events = yield from hass.async_add_job(
_get_events, hass, self.config, start_day, end_day)
return self.json(events)
class Entry(object):
"""A human readable version of the log."""
def __init__(self, when=None, name=None, message=None, domain=None,
entity_id=None):
"""Initialize the entry."""
self.when = when
self.name = name
self.message = message
self.domain = domain
self.entity_id = entity_id
def as_dict(self):
"""Convert entry to a dict to be used within JSON."""
return {
'when': self.when,
'name': self.name,
'message': self.message,
'domain': self.domain,
'entity_id': self.entity_id,
}
def humanify(events):
"""Generate a converted list of events into Entry objects.
Will try to group events if possible:
- if 2+ sensor updates in GROUP_BY_MINUTES, show last
- if home assistant stop and start happen in same minute call it restarted
"""
# Group events in batches of GROUP_BY_MINUTES
for _, g_events in groupby(
events,
lambda event: event.time_fired.minute // GROUP_BY_MINUTES):
events_batch = list(g_events)
# Keep track of last sensor states
last_sensor_event = {}
# Group HA start/stop events
# Maps minute of event to 1: stop, 2: stop + start
start_stop_events = {}
# Process events
for event in events_batch:
if event.event_type == EVENT_STATE_CHANGED:
entity_id = event.data.get('entity_id')
if entity_id is None:
continue
if entity_id.startswith(tuple('{}.'.format(
domain) for domain in CONTINUOUS_DOMAINS)):
last_sensor_event[entity_id] = event
elif event.event_type == EVENT_HOMEASSISTANT_STOP:
if event.time_fired.minute in start_stop_events:
continue
start_stop_events[event.time_fired.minute] = 1
elif event.event_type == EVENT_HOMEASSISTANT_START:
if event.time_fired.minute not in start_stop_events:
continue
start_stop_events[event.time_fired.minute] = 2
# Yield entries
for event in events_batch:
if event.event_type == EVENT_STATE_CHANGED:
to_state = State.from_dict(event.data.get('new_state'))
# If last_changed != last_updated only attributes have changed
# we do not report on that yet. Also filter auto groups.
if not to_state or \
to_state.last_changed != to_state.last_updated or \
to_state.domain == 'group' and \
to_state.attributes.get('auto', False):
continue
domain = to_state.domain
# Skip all but the last sensor state
if domain in CONTINUOUS_DOMAINS and \
event != last_sensor_event[to_state.entity_id]:
continue
# Don't show continuous sensor value changes in the logbook
if domain in CONTINUOUS_DOMAINS and \
to_state.attributes.get('unit_of_measurement'):
continue
yield Entry(
event.time_fired,
name=to_state.name,
message=_entry_message_from_state(domain, to_state),
domain=domain,
entity_id=to_state.entity_id)
elif event.event_type == EVENT_HOMEASSISTANT_START:
if start_stop_events.get(event.time_fired.minute) == 2:
continue
yield Entry(
event.time_fired, "Home Assistant", "started",
domain=HA_DOMAIN)
elif event.event_type == EVENT_HOMEASSISTANT_STOP:
if start_stop_events.get(event.time_fired.minute) == 2:
action = "restarted"
else:
action = "stopped"
yield Entry(
event.time_fired, "Home Assistant", action,
domain=HA_DOMAIN)
elif event.event_type == EVENT_LOGBOOK_ENTRY:
domain = event.data.get(ATTR_DOMAIN)
entity_id = event.data.get(ATTR_ENTITY_ID)
if domain is None and entity_id is not None:
try:
domain = split_entity_id(str(entity_id))[0]
except IndexError:
pass
yield Entry(
event.time_fired, event.data.get(ATTR_NAME),
event.data.get(ATTR_MESSAGE), domain,
entity_id)
def _get_events(hass, config, start_day, end_day):
"""Get events for a period of time."""
from homeassistant.components.recorder.models import Events
from homeassistant.components.recorder.util import (
execute, session_scope)
with session_scope(hass=hass) as session:
query = session.query(Events).order_by(
Events.time_fired).filter(
(Events.time_fired > start_day) &
(Events.time_fired < end_day))
events = execute(query)
return humanify(_exclude_events(events, config))
def _exclude_events(events, config):
"""Get lists of excluded entities and platforms."""
excluded_entities = []
excluded_domains = []
included_entities = []
included_domains = []
exclude = config.get(CONF_EXCLUDE)
if exclude:
excluded_entities = exclude[CONF_ENTITIES]
excluded_domains = exclude[CONF_DOMAINS]
include = config.get(CONF_INCLUDE)
if include:
included_entities = include[CONF_ENTITIES]
included_domains = include[CONF_DOMAINS]
filtered_events = []
for event in events:
domain, entity_id = None, None
if event.event_type == EVENT_STATE_CHANGED:
to_state = State.from_dict(event.data.get('new_state'))
# Do not report on new entities
if event.data.get('old_state') is None:
continue
# Do not report on entity removal
if not to_state:
continue
# exclude entities which are customized hidden
hidden = to_state.attributes.get(ATTR_HIDDEN, False)
if hidden:
continue
domain = to_state.domain
entity_id = to_state.entity_id
elif event.event_type == EVENT_LOGBOOK_ENTRY:
domain = event.data.get(ATTR_DOMAIN)
entity_id = event.data.get(ATTR_ENTITY_ID)
if domain or entity_id:
# filter if only excluded is configured for this domain
if excluded_domains and domain in excluded_domains and \
not included_domains:
if (included_entities and entity_id not in included_entities) \
or not included_entities:
continue
# filter if only included is configured for this domain
elif not excluded_domains and included_domains and \
domain not in included_domains:
if (included_entities and entity_id not in included_entities) \
or not included_entities:
continue
# filter if included and excluded is configured for this domain
elif excluded_domains and included_domains and \
(domain not in included_domains or
domain in excluded_domains):
if (included_entities and entity_id not in included_entities) \
or not included_entities or domain in excluded_domains:
continue
# filter if only included is configured for this entity
elif not excluded_domains and not included_domains and \
included_entities and entity_id not in included_entities:
continue
# check if logbook entry is excluded for this entity
if entity_id in excluded_entities:
continue
filtered_events.append(event)
return filtered_events
# pylint: disable=too-many-return-statements
def _entry_message_from_state(domain, state):
"""Convert a state to a message for the logbook."""
# We pass domain in so we don't have to split entity_id again
if domain == 'device_tracker':
if state.state == STATE_NOT_HOME:
return 'is away'
return 'is at {}'.format(state.state)
elif domain == 'sun':
if state.state == sun.STATE_ABOVE_HORIZON:
return 'has risen'
return 'has set'
elif state.state == STATE_ON:
# Future: combine groups and its entity entries ?
return "turned on"
elif state.state == STATE_OFF:
return "turned off"
return "changed to {}".format(state.state)