core/homeassistant/components/sensor/dnsip.py

87 lines
2.5 KiB
Python

"""
Get your own public IP address or that of any host.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.dnsip/
"""
import asyncio
import logging
from datetime import timedelta
import voluptuous as vol
from homeassistant.const import STATE_UNKNOWN
from homeassistant.components.sensor import PLATFORM_SCHEMA
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity import Entity
REQUIREMENTS = ['aiodns==1.1.1']
_LOGGER = logging.getLogger(__name__)
CONF_HOSTNAME = 'hostname'
CONF_RESOLVER = 'resolver'
CONF_RESOLVER_IPV6 = 'resolver_ipv6'
CONF_IPV6 = 'ipv6'
DEFAULT_HOSTNAME = 'myip.opendns.com'
DEFAULT_RESOLVER = '208.67.222.222'
DEFAULT_RESOLVER_IPV6 = '2620:0:ccc::2'
DEFAULT_IPV6 = False
SCAN_INTERVAL = timedelta(seconds=120)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Optional(CONF_HOSTNAME, default=DEFAULT_HOSTNAME): cv.string,
vol.Optional(CONF_RESOLVER, default=DEFAULT_RESOLVER): cv.string,
vol.Optional(CONF_RESOLVER_IPV6, default=DEFAULT_RESOLVER_IPV6): cv.string,
vol.Optional(CONF_IPV6, default=DEFAULT_IPV6): cv.boolean,
})
@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
"""Setup the DNS IP sensor."""
hostname = config.get(CONF_HOSTNAME)
ipv6 = config.get(CONF_IPV6)
if ipv6:
resolver = config.get(CONF_RESOLVER_IPV6)
else:
resolver = config.get(CONF_RESOLVER)
async_add_devices([WanIpSensor(
hass, hostname, resolver, ipv6)], True)
class WanIpSensor(Entity):
"""Implementation of a DNS IP sensor."""
def __init__(self, hass, hostname, resolver, ipv6):
"""Initialize the sensor."""
import aiodns
self.hass = hass
self._name = hostname
self.resolver = aiodns.DNSResolver(loop=self.hass.loop)
self.resolver.nameservers = [resolver]
self.querytype = 'AAAA' if ipv6 else 'A'
self._state = STATE_UNKNOWN
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def state(self):
"""Return the current DNS IP address for hostname."""
return self._state
@asyncio.coroutine
def async_update(self):
"""Get the current DNS IP address for hostname."""
response = yield from self.resolver.query(self._name, self.querytype)
if response:
self._state = response[0].host
else:
self._state = STATE_UNKNOWN