84 lines
2.1 KiB
Python
84 lines
2.1 KiB
Python
"""
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Support for wake on lan.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/switch.wake_on_lan/
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"""
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import logging
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import platform
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import subprocess as sp
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from homeassistant.components.switch import SwitchDevice
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_LOGGER = logging.getLogger(__name__)
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REQUIREMENTS = ['wakeonlan==0.2.2']
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DEFAULT_NAME = "Wake on LAN"
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DEFAULT_PING_TIMEOUT = 1
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def setup_platform(hass, config, add_devices_callback, discovery_info=None):
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"""Add wake on lan switch."""
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if config.get('mac_address') is None:
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_LOGGER.error("Missing required variable: mac_address")
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return False
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add_devices_callback([WOLSwitch(
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hass,
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config.get('name', DEFAULT_NAME),
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config.get('host'),
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config.get('mac_address'),
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)])
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class WOLSwitch(SwitchDevice):
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"""Representation of a wake on lan switch."""
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def __init__(self, hass, name, host, mac_address):
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"""Initialize the WOL switch."""
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from wakeonlan import wol
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self._hass = hass
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self._name = name
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self._host = host
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self._mac_address = mac_address
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self._state = False
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self._wol = wol
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self.update()
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@property
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def should_poll(self):
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"""Poll for status regularly."""
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return True
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@property
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def is_on(self):
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"""Return true if switch is on."""
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return self._state
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@property
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def name(self):
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"""The name of the switch."""
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return self._name
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def turn_on(self):
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"""Turn the device on."""
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self._wol.send_magic_packet(self._mac_address)
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self.update_ha_state()
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def turn_off(self):
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"""Do nothing."""
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pass
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def update(self):
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"""Check if device is on and update the state."""
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if platform.system().lower() == "windows":
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ping_cmd = "ping -n 1 -w {} {}"\
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.format(DEFAULT_PING_TIMEOUT * 1000, self._host)
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else:
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ping_cmd = "ping -c 1 -W {} {}"\
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.format(DEFAULT_PING_TIMEOUT, self._host)
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status = sp.getstatusoutput(ping_cmd)[0]
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self._state = not bool(status)
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