161 lines
5.1 KiB
Python
161 lines
5.1 KiB
Python
"""Support for monitoring pyLoad."""
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from datetime import timedelta
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import logging
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from aiohttp.hdrs import CONTENT_TYPE
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import requests
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import voluptuous as vol
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import (
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CONF_SSL, CONF_HOST, CONF_NAME, CONF_PORT, CONF_PASSWORD, CONF_USERNAME,
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CONTENT_TYPE_JSON, CONF_MONITORED_VARIABLES)
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity import Entity
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from homeassistant.util import Throttle
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_HOST = 'localhost'
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DEFAULT_NAME = 'pyLoad'
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DEFAULT_PORT = 8000
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MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=15)
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SENSOR_TYPES = {
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'speed': ['speed', 'Speed', 'MB/s'],
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}
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_HOST, default=DEFAULT_HOST): cv.string,
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vol.Optional(CONF_MONITORED_VARIABLES, default=['speed']):
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vol.All(cv.ensure_list, [vol.In(SENSOR_TYPES)]),
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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vol.Optional(CONF_PASSWORD): cv.string,
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vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
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vol.Optional(CONF_SSL, default=False): cv.boolean,
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vol.Optional(CONF_USERNAME): cv.string,
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})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the pyLoad sensors."""
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host = config.get(CONF_HOST)
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port = config.get(CONF_PORT)
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ssl = 's' if config.get(CONF_SSL) else ''
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name = config.get(CONF_NAME)
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username = config.get(CONF_USERNAME)
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password = config.get(CONF_PASSWORD)
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monitored_types = config.get(CONF_MONITORED_VARIABLES)
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url = "http{}://{}:{}/api/".format(ssl, host, port)
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try:
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pyloadapi = PyLoadAPI(
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api_url=url, username=username, password=password)
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pyloadapi.update()
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except (requests.exceptions.ConnectionError,
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requests.exceptions.HTTPError) as conn_err:
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_LOGGER.error("Error setting up pyLoad API: %s", conn_err)
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return False
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devices = []
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for ng_type in monitored_types:
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new_sensor = PyLoadSensor(
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api=pyloadapi, sensor_type=SENSOR_TYPES.get(ng_type),
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client_name=name)
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devices.append(new_sensor)
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add_entities(devices, True)
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class PyLoadSensor(Entity):
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"""Representation of a pyLoad sensor."""
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def __init__(self, api, sensor_type, client_name):
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"""Initialize a new pyLoad sensor."""
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self._name = '{} {}'.format(client_name, sensor_type[1])
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self.type = sensor_type[0]
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self.api = api
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self._state = None
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self._unit_of_measurement = sensor_type[2]
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@property
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def name(self):
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"""Return the name of the sensor."""
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return self._name
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@property
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def state(self):
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"""Return the state of the sensor."""
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return self._state
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement of this entity, if any."""
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return self._unit_of_measurement
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def update(self):
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"""Update state of sensor."""
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try:
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self.api.update()
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except requests.exceptions.ConnectionError:
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# Error calling the API, already logged in api.update()
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return
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if self.api.status is None:
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_LOGGER.debug("Update of %s requested, but no status is available",
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self._name)
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return
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value = self.api.status.get(self.type)
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if value is None:
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_LOGGER.warning("Unable to locate value for %s", self.type)
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return
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if "speed" in self.type and value > 0:
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# Convert download rate from Bytes/s to MBytes/s
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self._state = round(value / 2**20, 2)
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else:
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self._state = value
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class PyLoadAPI:
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"""Simple wrapper for pyLoad's API."""
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def __init__(self, api_url, username=None, password=None):
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"""Initialize pyLoad API and set headers needed later."""
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self.api_url = api_url
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self.status = None
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self.headers = {CONTENT_TYPE: CONTENT_TYPE_JSON}
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if username is not None and password is not None:
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self.payload = {'username': username, 'password': password}
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self.login = requests.post(
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'{}{}'.format(api_url, 'login'), data=self.payload, timeout=5)
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self.update()
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def post(self, method, params=None):
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"""Send a POST request and return the response as a dict."""
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payload = {'method': method}
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if params:
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payload['params'] = params
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try:
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response = requests.post(
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'{}{}'.format(self.api_url, 'statusServer'), json=payload,
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cookies=self.login.cookies, headers=self.headers, timeout=5)
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response.raise_for_status()
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_LOGGER.debug("JSON Response: %s", response.json())
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return response.json()
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except requests.exceptions.ConnectionError as conn_exc:
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_LOGGER.error("Failed to update pyLoad status. Error: %s",
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conn_exc)
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raise
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@Throttle(MIN_TIME_BETWEEN_UPDATES)
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def update(self):
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"""Update cached response."""
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self.status = self.post('speed')
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