core/homeassistant/components/sensor/sabnzbd.py

221 lines
7.4 KiB
Python

"""
Support for monitoring an SABnzbd NZB client.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.sabnzbd/
"""
import asyncio
import logging
from datetime import timedelta
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import (
CONF_HOST, CONF_API_KEY, CONF_NAME, CONF_PORT, CONF_MONITORED_VARIABLES,
CONF_SSL)
from homeassistant.helpers.entity import Entity
from homeassistant.util import Throttle
from homeassistant.util.json import load_json, save_json
import homeassistant.helpers.config_validation as cv
REQUIREMENTS = ['pysabnzbd==0.0.3']
_CONFIGURING = {}
_LOGGER = logging.getLogger(__name__)
CONFIG_FILE = 'sabnzbd.conf'
DEFAULT_NAME = 'SABnzbd'
DEFAULT_PORT = 8080
DEFAULT_SSL = False
MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=1)
SENSOR_TYPES = {
'current_status': ['Status', None],
'speed': ['Speed', 'MB/s'],
'queue_size': ['Queue', 'MB'],
'queue_remaining': ['Left', 'MB'],
'disk_size': ['Disk', 'GB'],
'disk_free': ['Disk Free', 'GB'],
'queue_count': ['Queue Count', None],
}
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_API_KEY): cv.string,
vol.Required(CONF_HOST): cv.string,
vol.Optional(CONF_MONITORED_VARIABLES, default=['current_status']):
vol.All(cv.ensure_list, [vol.In(SENSOR_TYPES)]),
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
vol.Optional(CONF_SSL, default=DEFAULT_SSL): cv.boolean,
})
@asyncio.coroutine
def async_check_sabnzbd(sab_api, base_url, api_key):
"""Check if we can reach SABnzbd."""
from pysabnzbd import SabnzbdApiException
sab_api = sab_api(base_url, api_key)
try:
yield from sab_api.check_available()
except SabnzbdApiException:
_LOGGER.error("Connection to SABnzbd API failed")
return False
return True
def setup_sabnzbd(base_url, apikey, name, config,
async_add_devices, sab_api):
"""Set up polling from SABnzbd and sensors."""
sab_api = sab_api(base_url, apikey)
monitored = config.get(CONF_MONITORED_VARIABLES)
async_add_devices([SabnzbdSensor(variable, sab_api, name)
for variable in monitored])
@asyncio.coroutine
@Throttle(MIN_TIME_BETWEEN_UPDATES)
def async_update_queue(sab_api):
"""
Throttled function to update SABnzbd queue.
This ensures that the queue info only gets updated once for all sensors
"""
yield from sab_api.refresh_queue()
def request_configuration(host, name, hass, config, async_add_devices,
sab_api):
"""Request configuration steps from the user."""
configurator = hass.components.configurator
# We got an error if this method is called while we are configuring
if host in _CONFIGURING:
configurator.notify_errors(_CONFIGURING[host],
'Failed to register, please try again.')
return
@asyncio.coroutine
def async_configuration_callback(data):
"""Handle configuration changes."""
api_key = data.get('api_key')
if (yield from async_check_sabnzbd(sab_api, host, api_key)):
setup_sabnzbd(host, api_key, name, config,
async_add_devices, sab_api)
def success():
"""Set up was successful."""
conf = load_json(hass.config.path(CONFIG_FILE))
conf[host] = {'api_key': api_key}
save_json(hass.config.path(CONFIG_FILE), conf)
req_config = _CONFIGURING.pop(host)
configurator.async_request_done(req_config)
hass.async_add_job(success)
_CONFIGURING[host] = configurator.async_request_config(
DEFAULT_NAME,
async_configuration_callback,
description='Enter the API Key',
submit_caption='Confirm',
fields=[{'id': 'api_key', 'name': 'API Key', 'type': ''}]
)
@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
"""Set up the SABnzbd platform."""
from pysabnzbd import SabnzbdApi
if discovery_info is not None:
host = discovery_info.get(CONF_HOST)
port = discovery_info.get(CONF_PORT)
name = DEFAULT_NAME
use_ssl = discovery_info.get('properties', {}).get('https', '0') == '1'
else:
host = config.get(CONF_HOST)
port = config.get(CONF_PORT)
name = config.get(CONF_NAME, DEFAULT_NAME)
use_ssl = config.get(CONF_SSL)
api_key = config.get(CONF_API_KEY)
uri_scheme = 'https://' if use_ssl else 'http://'
base_url = "{}{}:{}/".format(uri_scheme, host, port)
if not api_key:
conf = load_json(hass.config.path(CONFIG_FILE))
if conf.get(base_url, {}).get('api_key'):
api_key = conf[base_url]['api_key']
if not (yield from async_check_sabnzbd(SabnzbdApi, base_url, api_key)):
request_configuration(base_url, name, hass, config,
async_add_devices, SabnzbdApi)
return
setup_sabnzbd(base_url, api_key, name, config,
async_add_devices, SabnzbdApi)
class SabnzbdSensor(Entity):
"""Representation of an SABnzbd sensor."""
def __init__(self, sensor_type, sabnzbd_api, client_name):
"""Initialize the sensor."""
self._name = SENSOR_TYPES[sensor_type][0]
self.sabnzbd_api = sabnzbd_api
self.type = sensor_type
self.client_name = client_name
self._state = None
self._unit_of_measurement = SENSOR_TYPES[sensor_type][1]
@property
def name(self):
"""Return the name of the sensor."""
return '{} {}'.format(self.client_name, self._name)
@property
def state(self):
"""Return the state of the sensor."""
return self._state
@property
def unit_of_measurement(self):
"""Return the unit of measurement of this entity, if any."""
return self._unit_of_measurement
@asyncio.coroutine
def async_refresh_sabnzbd_data(self):
"""Call the throttled SABnzbd refresh method."""
from pysabnzbd import SabnzbdApiException
try:
yield from async_update_queue(self.sabnzbd_api)
except SabnzbdApiException:
_LOGGER.exception("Connection to SABnzbd API failed")
@asyncio.coroutine
def async_update(self):
"""Get the latest data and updates the states."""
yield from self.async_refresh_sabnzbd_data()
if self.sabnzbd_api.queue:
if self.type == 'current_status':
self._state = self.sabnzbd_api.queue.get('status')
elif self.type == 'speed':
mb_spd = float(self.sabnzbd_api.queue.get('kbpersec')) / 1024
self._state = round(mb_spd, 1)
elif self.type == 'queue_size':
self._state = self.sabnzbd_api.queue.get('mb')
elif self.type == 'queue_remaining':
self._state = self.sabnzbd_api.queue.get('mbleft')
elif self.type == 'disk_size':
self._state = self.sabnzbd_api.queue.get('diskspacetotal1')
elif self.type == 'disk_free':
self._state = self.sabnzbd_api.queue.get('diskspace1')
elif self.type == 'queue_count':
self._state = self.sabnzbd_api.queue.get('noofslots_total')
else:
self._state = 'Unknown'