94 lines
2.3 KiB
Python
94 lines
2.3 KiB
Python
"""Integrate with DuckDNS."""
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from datetime import timedelta
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import logging
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import voluptuous as vol
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from homeassistant.const import CONF_ACCESS_TOKEN, CONF_DOMAIN
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.event import async_track_time_interval
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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_LOGGER = logging.getLogger(__name__)
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ATTR_TXT = 'txt'
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DOMAIN = 'duckdns'
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INTERVAL = timedelta(minutes=5)
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SERVICE_SET_TXT = 'set_txt'
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UPDATE_URL = 'https://www.duckdns.org/update'
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CONFIG_SCHEMA = vol.Schema({
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DOMAIN: vol.Schema({
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vol.Required(CONF_DOMAIN): cv.string,
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vol.Required(CONF_ACCESS_TOKEN): cv.string,
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})
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}, extra=vol.ALLOW_EXTRA)
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SERVICE_TXT_SCHEMA = vol.Schema({
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vol.Required(ATTR_TXT): vol.Any(None, cv.string)
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})
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async def async_setup(hass, config):
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"""Initialize the DuckDNS component."""
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domain = config[DOMAIN][CONF_DOMAIN]
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token = config[DOMAIN][CONF_ACCESS_TOKEN]
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session = async_get_clientsession(hass)
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result = await _update_duckdns(session, domain, token)
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if not result:
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return False
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async def update_domain_interval(now):
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"""Update the DuckDNS entry."""
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await _update_duckdns(session, domain, token)
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async def update_domain_service(call):
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"""Update the DuckDNS entry."""
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await _update_duckdns(
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session, domain, token, txt=call.data[ATTR_TXT])
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async_track_time_interval(hass, update_domain_interval, INTERVAL)
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hass.services.async_register(
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DOMAIN, SERVICE_SET_TXT, update_domain_service,
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schema=SERVICE_TXT_SCHEMA)
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return result
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_SENTINEL = object()
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async def _update_duckdns(session, domain, token, *, txt=_SENTINEL,
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clear=False):
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"""Update DuckDNS."""
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params = {
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'domains': domain,
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'token': token,
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}
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if txt is not _SENTINEL:
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if txt is None:
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# Pass in empty txt value to indicate it's clearing txt record
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params['txt'] = ''
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clear = True
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else:
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params['txt'] = txt
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if clear:
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params['clear'] = 'true'
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resp = await session.get(UPDATE_URL, params=params)
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body = await resp.text()
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if body != 'OK':
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_LOGGER.warning("Updating DuckDNS domain failed: %s", domain)
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return False
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return True
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