hass-core/homeassistant/components/light/hyperion.py
2015-10-17 19:36:52 +02:00

135 lines
3.9 KiB
Python

"""
homeassistant.components.light.hyperion
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Support for Hyperion remotes.
Configuration:
To connect to [a Hyperion server](https://github.com/tvdzwan/hyperion) you
will need to add something like the following to your configuration.yaml file:
light:
platform: hyperion
host: 192.168.1.98
port: 19444
The JSON server port is 19444 by default.
"""
import logging
import socket
import json
from homeassistant.const import CONF_HOST
from homeassistant.components.light import (Light, ATTR_XY_COLOR,
ATTR_BRIGHTNESS)
from homeassistant.util.color import color_RGB_to_xy, \
color_xy_brightness_to_RGB
_LOGGER = logging.getLogger(__name__)
REQUIREMENTS = []
def setup_platform(hass, config, add_devices_callback, discovery_info=None):
""" Sets up a Hyperion server remote """
host = config.get(CONF_HOST, None)
port = config.get("port", 19444)
add_devices_callback([Hyperion(host, port)])
class Hyperion(Light):
""" Represents a Hyperion remote """
def __init__(self, host, port):
self._host = host
self._port = port
self._name = "unknown"
self._is_available = False
self._xy_color = color_RGB_to_xy(0, 0, 0)
self._brightness = 255
@property
def name(self):
""" Get the hostname of the server. """
return self._name
@property
def color_xy(self):
""" XY color value. """
return self._xy_color
@property
def brightness(self):
""" Brightness. """
return self._brightness
@property
def is_on(self):
""" True if device is on. """
self.check_remote()
return self._is_available
def turn_on(self, **kwargs):
""" Turn the lights on. """
if self._is_available:
if ATTR_XY_COLOR in kwargs:
self._xy_color = kwargs[ATTR_XY_COLOR]
if ATTR_BRIGHTNESS in kwargs:
self._brightness = kwargs[ATTR_BRIGHTNESS]
self.update_remote()
def turn_off(self, **kwargs):
""" Disconnect the remote. """
self.json_request({"command": "clearall"})
def check_remote(self):
""" Ping the remote and gets the hostname. """
response = self.json_request({"command": "serverinfo"})
if response:
self._name = response["info"]["hostname"]
def update_remote(self):
""" Set the remote's lights. """
rgb = color_xy_brightness_to_RGB(self._xy_color[0], self._xy_color[1],
self._brightness)
rgb = [int(c) for c in rgb]
self.json_request(
{"command": "color", "priority": 128, "color": rgb})
def json_request(self, request, wait_for_response=False):
""" Communicate with the json server. """
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(5)
sock.connect((self._host, self._port))
except OSError:
self._is_available = False
return None
sock.send(bytearray(json.dumps(request) + "\n", "utf-8"))
try:
buf = sock.recv(4096)
except socket.timeout:
return None
buffering = True
while buffering:
if "\n" in str(buf, "utf-8"):
response = str(buf, "utf-8").split("\n")[0]
buffering = False
else:
try:
more = sock.recv(4096)
except socket.timeout:
more = None
if not more:
buffering = False
response = str(buf, "utf-8")
else:
buf += more
sock.close()
j = json.loads(response)
self._is_available = True
return j