100 lines
2.7 KiB
Python
100 lines
2.7 KiB
Python
"""Integrate with FreeDNS Dynamic DNS service at freedns.afraid.org."""
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import asyncio
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from datetime import timedelta
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import logging
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import aiohttp
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import async_timeout
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import voluptuous as vol
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from homeassistant.const import CONF_ACCESS_TOKEN, CONF_SCAN_INTERVAL, CONF_URL
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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DOMAIN = "freedns"
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DEFAULT_INTERVAL = timedelta(minutes=10)
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TIMEOUT = 10
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UPDATE_URL = "https://freedns.afraid.org/dynamic/update.php"
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CONFIG_SCHEMA = vol.Schema(
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{
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DOMAIN: vol.Schema(
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{
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vol.Exclusive(CONF_URL, DOMAIN): cv.string,
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vol.Exclusive(CONF_ACCESS_TOKEN, DOMAIN): cv.string,
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vol.Optional(CONF_SCAN_INTERVAL, default=DEFAULT_INTERVAL): vol.All(
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cv.time_period, cv.positive_timedelta
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),
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}
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)
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},
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extra=vol.ALLOW_EXTRA,
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)
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async def async_setup(hass, config):
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"""Initialize the FreeDNS component."""
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conf = config[DOMAIN]
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url = conf.get(CONF_URL)
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auth_token = conf.get(CONF_ACCESS_TOKEN)
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update_interval = conf[CONF_SCAN_INTERVAL]
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session = hass.helpers.aiohttp_client.async_get_clientsession()
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result = await _update_freedns(hass, session, url, auth_token)
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if result is False:
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return False
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async def update_domain_callback(now):
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"""Update the FreeDNS entry."""
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await _update_freedns(hass, session, url, auth_token)
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hass.helpers.event.async_track_time_interval(
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update_domain_callback, update_interval
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)
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return True
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async def _update_freedns(hass, session, url, auth_token):
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"""Update FreeDNS."""
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params = None
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if url is None:
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url = UPDATE_URL
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if auth_token is not None:
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params = {}
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params[auth_token] = ""
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try:
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with async_timeout.timeout(TIMEOUT):
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resp = await session.get(url, params=params)
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body = await resp.text()
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if "has not changed" in body:
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# IP has not changed.
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_LOGGER.debug("FreeDNS update skipped: IP has not changed")
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return True
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if "ERROR" not in body:
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_LOGGER.debug("Updating FreeDNS was successful: %s", body)
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return True
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if "Invalid update URL" in body:
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_LOGGER.error("FreeDNS update token is invalid")
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else:
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_LOGGER.warning("Updating FreeDNS failed: %s", body)
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except aiohttp.ClientError:
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_LOGGER.warning("Can't connect to FreeDNS API")
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except asyncio.TimeoutError:
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_LOGGER.warning("Timeout from FreeDNS API at %s", url)
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return False
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