core/homeassistant/components/switch/rest.py

107 lines
3.4 KiB
Python

"""
Support for RESTful switches.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/switch.rest/
"""
import logging
import requests
import voluptuous as vol
from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
from homeassistant.const import (CONF_NAME, CONF_RESOURCE)
import homeassistant.helpers.config_validation as cv
CONF_BODY_OFF = 'body_off'
CONF_BODY_ON = 'body_on'
DEFAULT_BODY_OFF = 'OFF'
DEFAULT_BODY_ON = 'ON'
DEFAULT_NAME = 'REST Switch'
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_RESOURCE): cv.url,
vol.Optional(CONF_BODY_OFF, default=DEFAULT_BODY_OFF): cv.string,
vol.Optional(CONF_BODY_ON, default=DEFAULT_BODY_ON): cv.string,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
})
_LOGGER = logging.getLogger(__name__)
# pylint: disable=unused-argument,
def setup_platform(hass, config, add_devices_callback, discovery_info=None):
"""Setup the RESTful switch."""
name = config.get(CONF_NAME)
resource = config.get(CONF_RESOURCE)
body_on = config.get(CONF_BODY_ON)
body_off = config.get(CONF_BODY_OFF)
try:
requests.get(resource, timeout=10)
except requests.exceptions.MissingSchema:
_LOGGER.error("Missing resource or schema in configuration. "
"Add http:// or https:// to your URL")
return False
except requests.exceptions.ConnectionError:
_LOGGER.error("No route to resource/endpoint: %s", resource)
return False
add_devices_callback([RestSwitch(hass, name, resource, body_on, body_off)])
# pylint: disable=too-many-arguments
class RestSwitch(SwitchDevice):
"""Representation of a switch that can be toggled using REST."""
def __init__(self, hass, name, resource, body_on, body_off):
"""Initialize the REST switch."""
self._state = None
self._hass = hass
self._name = name
self._resource = resource
self._body_on = body_on
self._body_off = body_off
@property
def name(self):
"""The name of the switch."""
return self._name
@property
def is_on(self):
"""Return true if device is on."""
return self._state
def turn_on(self, **kwargs):
"""Turn the device on."""
request = requests.post(self._resource,
data=self._body_on,
timeout=10)
if request.status_code == 200:
self._state = True
else:
_LOGGER.error("Can't turn on %s. Is resource/endpoint offline?",
self._resource)
def turn_off(self, **kwargs):
"""Turn the device off."""
request = requests.post(self._resource,
data=self._body_off,
timeout=10)
if request.status_code == 200:
self._state = False
else:
_LOGGER.error("Can't turn off %s. Is resource/endpoint offline?",
self._resource)
def update(self):
"""Get the latest data from REST API and update the state."""
request = requests.get(self._resource, timeout=10)
if request.text == self._body_on:
self._state = True
elif request.text == self._body_off:
self._state = False
else:
self._state = None