core/homeassistant/components/tplink_lte.py

151 lines
4.1 KiB
Python

"""
Support for TP-Link LTE modems.
For more details about this component, please refer to the documentation at
https://home-assistant.io/components/tplink_lte/
"""
import asyncio
import logging
import aiohttp
import attr
import voluptuous as vol
from homeassistant.components.notify import ATTR_TARGET
from homeassistant.const import (
CONF_HOST, CONF_NAME, CONF_PASSWORD, EVENT_HOMEASSISTANT_STOP)
from homeassistant.core import callback
from homeassistant.helpers import config_validation as cv, discovery
from homeassistant.helpers.aiohttp_client import async_create_clientsession
REQUIREMENTS = ['tp-connected==0.0.4']
_LOGGER = logging.getLogger(__name__)
DOMAIN = 'tplink_lte'
DATA_KEY = 'tplink_lte'
CONF_NOTIFY = "notify"
_NOTIFY_SCHEMA = vol.All(vol.Schema({
vol.Optional(CONF_NAME): cv.string,
vol.Required(ATTR_TARGET): vol.All(cv.ensure_list, [cv.string]),
}))
CONFIG_SCHEMA = vol.Schema({
DOMAIN: vol.All(cv.ensure_list, [vol.Schema({
vol.Required(CONF_HOST): cv.string,
vol.Required(CONF_PASSWORD): cv.string,
vol.Optional(CONF_NOTIFY):
vol.All(cv.ensure_list, [_NOTIFY_SCHEMA]),
})])
}, extra=vol.ALLOW_EXTRA)
@attr.s
class ModemData:
"""Class for modem state."""
host = attr.ib()
modem = attr.ib()
connected = attr.ib(init=False, default=True)
@attr.s
class LTEData:
"""Shared state."""
websession = attr.ib()
modem_data = attr.ib(init=False, factory=dict)
def get_modem_data(self, config):
"""Get the requested or the only modem_data value."""
if CONF_HOST in config:
return self.modem_data.get(config[CONF_HOST])
if len(self.modem_data) == 1:
return next(iter(self.modem_data.values()))
return None
async def async_setup(hass, config):
"""Set up TP-Link LTE component."""
if DATA_KEY not in hass.data:
websession = async_create_clientsession(
hass, cookie_jar=aiohttp.CookieJar(unsafe=True))
hass.data[DATA_KEY] = LTEData(websession)
domain_config = config.get(DOMAIN, [])
tasks = [_setup_lte(hass, conf) for conf in domain_config]
if tasks:
await asyncio.wait(tasks)
for conf in domain_config:
for notify_conf in conf.get(CONF_NOTIFY, []):
hass.async_create_task(discovery.async_load_platform(
hass, 'notify', DOMAIN, notify_conf, config))
return True
async def _setup_lte(hass, lte_config, delay=0):
"""Set up a TP-Link LTE modem."""
import tp_connected
host = lte_config[CONF_HOST]
password = lte_config[CONF_PASSWORD]
websession = hass.data[DATA_KEY].websession
modem = tp_connected.Modem(hostname=host, websession=websession)
modem_data = ModemData(host, modem)
try:
await _login(hass, modem_data, password)
except tp_connected.Error:
retry_task = hass.loop.create_task(
_retry_login(hass, modem_data, password))
@callback
def cleanup_retry(event):
"""Clean up retry task resources."""
if not retry_task.done():
retry_task.cancel()
hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, cleanup_retry)
async def _login(hass, modem_data, password):
"""Log in and complete setup."""
await modem_data.modem.login(password=password)
modem_data.connected = True
hass.data[DATA_KEY].modem_data[modem_data.host] = modem_data
async def cleanup(event):
"""Clean up resources."""
await modem_data.modem.logout()
hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, cleanup)
async def _retry_login(hass, modem_data, password):
"""Sleep and retry setup."""
import tp_connected
_LOGGER.warning(
"Could not connect to %s. Will keep trying.", modem_data.host)
modem_data.connected = False
delay = 15
while not modem_data.connected:
await asyncio.sleep(delay)
try:
await _login(hass, modem_data, password)
_LOGGER.warning("Connected to %s", modem_data.host)
except tp_connected.Error:
delay = min(2*delay, 300)