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551 lines
15 KiB
Python
551 lines
15 KiB
Python
"""
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pyHS100
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Python library supporting TP-Link Smart Plugs/Switches (HS100/HS110/Hs200).
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The communication protocol was reverse engineered by Lubomir Stroetmann and
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Tobias Esser in 'Reverse Engineering the TP-Link HS110':
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https://www.softscheck.com/en/reverse-engineering-tp-link-hs110/
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This library reuses codes and concepts of the TP-Link WiFi SmartPlug Client
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at https://github.com/softScheck/tplink-smartplug, developed by Lubomir
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Stroetmann which is licensed under the Apache License, Version 2.0.
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You may obtain a copy of the license at
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http://www.apache.org/licenses/LICENSE-2.0
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"""
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from __future__ import absolute_import
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from __future__ import unicode_literals
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import datetime
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import logging
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import socket
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from pyHS100.protocol import TPLinkSmartHomeProtocol
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_LOGGER = logging.getLogger(__name__)
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class SmartPlugException(Exception):
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"""
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SmartPlugException gets raised for errors reported by the plug.
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"""
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pass
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class SmartPlug:
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"""Representation of a TP-Link Smart Switch.
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Usage example when used as library:
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p = SmartPlug("192.168.1.105")
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# print the devices alias
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print(p.alias)
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# change state of plug
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p.state = "ON"
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p.state = "OFF"
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# query and print current state of plug
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print(p.state)
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Errors reported by the device are raised as SmartPlugExceptions,
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and should be handled by the user of the library.
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Note:
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The library references the same structure as defined for the D-Link Switch
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"""
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# switch states
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SWITCH_STATE_ON = 'ON'
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SWITCH_STATE_OFF = 'OFF'
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SWITCH_STATE_UNKNOWN = 'UNKNOWN'
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# possible device features
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FEATURE_ENERGY_METER = 'ENE'
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FEATURE_TIMER = 'TIM'
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ALL_FEATURES = (FEATURE_ENERGY_METER, FEATURE_TIMER)
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def __init__(self, ip_address, protocol=TPLinkSmartHomeProtocol):
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"""
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Create a new SmartPlug instance, identified through its IP address.
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:param str ip_address: ip address on which the device listens
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:raises SmartPlugException: when unable to communicate with the device
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"""
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socket.inet_pton(socket.AF_INET, ip_address)
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self.ip_address = ip_address
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self.protocol = protocol
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self._sys_info = None
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def _fetch_sysinfo(self):
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"""
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Fetches the system information from the device.
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This should be called when the state of the plug is changed.
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:raises: SmartPlugException: on error
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"""
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self._sys_info = self.get_sysinfo()
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def _query_helper(self, target, cmd, arg={}):
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"""
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Helper returning unwrapped result object and doing error handling.
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:param target: Target system {system, time, emeter, ..}
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:param cmd: Command to execute
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:param arg: JSON object passed as parameter to the command, defaults to {}
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:return: Unwrapped result for the call.
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:rtype: dict
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:raises SmartPlugException: if command was not executed correctly
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"""
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try:
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response = self.protocol.query(
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host=self.ip_address,
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request={target: {cmd: arg}}
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)
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except Exception as ex:
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raise SmartPlugException(ex) from ex
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result = response[target]
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if "err_code" in result and result["err_code"] != 0:
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raise SmartPlugException("Error on {}.{}: {}".format(target, cmd, result))
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result = result[cmd]
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del result["err_code"]
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return result
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@property
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def sys_info(self):
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if not self._sys_info:
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self._fetch_sysinfo()
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return self._sys_info
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@property
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def state(self):
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"""
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Retrieve the switch state
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:returns: one of
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SWITCH_STATE_ON
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SWITCH_STATE_OFF
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SWITCH_STATE_UNKNOWN
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:rtype: str
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"""
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relay_state = self.sys_info['relay_state']
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if relay_state == 0:
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return SmartPlug.SWITCH_STATE_OFF
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elif relay_state == 1:
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return SmartPlug.SWITCH_STATE_ON
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else:
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_LOGGER.warning("Unknown state %s returned.", relay_state)
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return SmartPlug.SWITCH_STATE_UNKNOWN
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@state.setter
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def state(self, value):
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"""
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Set the new switch state
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:param value: one of
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SWITCH_STATE_ON
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SWITCH_STATE_OFF
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:raises ValueError: on invalid state
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:raises SmartPlugException: on error
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"""
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if not isinstance(value, str):
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raise ValueError("State must be str, not of %s.", type(value))
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elif value.upper() == SmartPlug.SWITCH_STATE_ON:
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self.turn_on()
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elif value.upper() == SmartPlug.SWITCH_STATE_OFF:
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self.turn_off()
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else:
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raise ValueError("State %s is not valid.", value)
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self._fetch_sysinfo()
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def get_sysinfo(self):
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"""
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Retrieve system information.
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:return: sysinfo
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:rtype dict
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:raises SmartPlugException: on error
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"""
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return self._query_helper("system", "get_sysinfo")
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@property
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def is_on(self):
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"""
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Returns whether device is on.
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:return: True if device is on, False otherwise
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"""
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return bool(self.sys_info['relay_state'])
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@property
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def is_off(self):
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"""
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Returns whether device is off.
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:return: True if device is off, False otherwise.
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:rtype: bool
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"""
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return not self.is_on
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def turn_on(self):
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"""
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Turn the switch on.
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:raises SmartPlugException: on error
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"""
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self._query_helper("system", "set_relay_state", {"state": 1})
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self._fetch_sysinfo()
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def turn_off(self):
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"""
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Turn the switch off.
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:raises SmartPlugException: on error
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"""
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self._query_helper("system", "set_relay_state", {"state": 0})
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self._fetch_sysinfo()
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@property
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def has_emeter(self):
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"""
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Checks feature list for energey meter support.
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:return: True if energey meter is available
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False if energymeter is missing
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"""
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return SmartPlug.FEATURE_ENERGY_METER in self.features
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def get_emeter_realtime(self):
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"""
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Retrive current energy readings from device.
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:returns: current readings or False
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:rtype: dict, False
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False if device has no energy meter or error occured
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:raises SmartPlugException: on error
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"""
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if not self.has_emeter:
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return False
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return self._query_helper("emeter", "get_realtime")
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def get_emeter_daily(self, year=None, month=None):
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"""
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Retrieve daily statistics for a given month
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:param year: year for which to retrieve statistics (default: this year)
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:param month: month for which to retrieve statistcs (default: this
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month)
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:return: mapping of day of month to value
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False if device has no energy meter or error occured
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:rtype: dict
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:raises SmartPlugException: on error
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"""
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if not self.has_emeter:
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return False
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if year is None:
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year = datetime.datetime.now().year
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if month is None:
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month = datetime.datetime.now().month
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response = self._query_helper("emeter", "get_daystat",
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{'month': month, 'year': year})
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return {entry['day']: entry['energy']
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for entry in response['day_list']}
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def get_emeter_monthly(self, year=datetime.datetime.now().year):
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"""
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Retrieve monthly statistics for a given year.
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:param year: year for which to retrieve statistics (default: this year)
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:return: dict: mapping of month to value
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False if device has no energy meter
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:rtype: dict
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:raises SmartPlugException: on error
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"""
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if not self.has_emeter:
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return False
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response = self._query_helper("emeter", "get_monthstat",
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{'year': year})
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return {entry['month']: entry['energy']
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for entry in response['month_list']}
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def erase_emeter_stats(self):
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"""
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Erase energy meter statistics
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:return: True if statistics were deleted
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False if device has no energy meter.
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:rtype: bool
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:raises SmartPlugException: on error
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"""
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if not self.has_emeter:
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return False
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self._query_helper("emeter", "erase_emeter_stat", None)
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self._fetch_sysinfo()
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# As query_helper raises exception in case of failure, we have succeeded when we are this far.
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return True
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def current_consumption(self):
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"""
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Get the current power consumption in Watt.
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:return: the current power consumption in Watt.
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False if device has no energy meter.
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:raises SmartPlugException: on error
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"""
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if not self.has_emeter:
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return False
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response = self.get_emeter_realtime()
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return response['power']
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def identify(self):
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"""
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Query device information to identify model and featureset
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:return: (alias, model, list of supported features)
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:rtype: tuple
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"""
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return self.alias, self.model, self.features
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@property
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def model(self):
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"""
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Get model of the device
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:return: device model
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:rtype: str
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:raises SmartPlugException: on error
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"""
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return self.sys_info['model']
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@property
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def features(self):
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"""
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Returns features of the devices
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:return: list of features
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:rtype: list
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"""
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features = self.sys_info['feature'].split(':')
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for feature in features:
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if feature not in SmartPlug.ALL_FEATURES:
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_LOGGER.warning("Unknown feature %s on device %s.",
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feature, self.model)
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return features
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@property
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def alias(self):
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"""
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Get current device alias (name)
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:return: Device name aka alias.
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:rtype: str
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"""
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return self.sys_info['alias']
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@alias.setter
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def alias(self, alias):
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"""
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Sets the device name aka alias.
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:param alias: New alias (name)
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:raises SmartPlugException: on error
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"""
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self._query_helper("system", "set_dev_alias", {"alias": alias})
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self._fetch_sysinfo()
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@property
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def led(self):
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"""
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Returns the state of the led.
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:return: True if led is on, False otherwise
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:rtype: bool
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"""
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return bool(1 - self.sys_info["led_off"])
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@led.setter
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def led(self, state):
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"""
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Sets the state of the led (night mode)
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:param bool state: True to set led on, False to set led off
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:raises SmartPlugException: on error
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"""
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self._query_helper("system", "set_led_off", {"off": int(not state)})
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self._fetch_sysinfo()
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@property
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def icon(self):
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"""
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Returns device icon
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Note: not working on HS110, but is always empty.
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:return: icon and its hash
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:rtype: dict
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:raises SmartPlugException: on error
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"""
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return self._query_helper("system", "get_dev_icon")
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@icon.setter
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def icon(self, icon):
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"""
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Content for hash and icon are unknown.
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:param str icon: Icon path(?)
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:raises NotImplementedError: when not implemented
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:raises SmartPlugError: on error
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"""
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raise NotImplementedError("Values for this call are unknown at this point.")
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# here just for the sake of completeness
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# self._query_helper("system", "set_dev_icon", {"icon": "", "hash": ""})
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# self.initialize()
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@property
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def time(self):
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"""
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Returns current time from the device.
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:return: datetime for device's time
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:rtype: datetime.datetime
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:raises SmartPlugException: on error
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"""
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res = self._query_helper("time", "get_time")
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return datetime.datetime(res["year"], res["month"], res["mday"],
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res["hour"], res["min"], res["sec"])
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@time.setter
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def time(self, ts):
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"""
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Sets time based on datetime object.
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Note: this calls set_timezone() for setting.
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:param datetime.datetime ts: New date and time
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:return: result
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:type: dict
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:raises NotImplemented: when not implemented.
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:raises SmartPlugException: on error
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"""
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raise NotImplementedError("Fails with err_code == 0 with HS110.")
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""" here just for the sake of completeness / if someone figures out why it doesn't work.
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ts_obj = {
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"index": self.timezone["index"],
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"hour": ts.hour,
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"min": ts.minute,
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"sec": ts.second,
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"year": ts.year,
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"month": ts.month,
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"mday": ts.day,
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}
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response = self._query_helper("time", "set_timezone", ts_obj)
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self.initialize()
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return response
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"""
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@property
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def timezone(self):
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"""
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Returns timezone information
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:return: Timezone information
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:rtype: dict
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:raises SmartPlugException: on error
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"""
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return self._query_helper("time", "get_timezone")
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@property
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def hw_info(self):
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"""
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Returns information about hardware
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:return: Information about hardware
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:rtype: dict
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"""
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keys = ["sw_ver", "hw_ver", "mac", "hwId", "fwId", "oemId", "dev_name"]
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return {key: self.sys_info[key] for key in keys}
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@property
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def on_since(self):
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"""
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Returns pretty-printed on-time
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:return: datetime for on since
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:rtype: datetime
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"""
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return datetime.datetime.now() - \
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datetime.timedelta(seconds=self.sys_info["on_time"])
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@property
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def location(self):
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"""
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Location of the device, as read from sysinfo
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:return: latitude and longitude
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:rtype: dict
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"""
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return {"latitude": self.sys_info["latitude"],
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"longitude": self.sys_info["longitude"]}
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@property
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def rssi(self):
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"""
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Returns WiFi signal strenth (rssi)
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:return: rssi
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:rtype: int
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"""
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return self.sys_info["rssi"]
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@property
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def mac(self):
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"""
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Returns mac address
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:return: mac address in hexadecimal with colons, e.g. 01:23:45:67:89:ab
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:rtype: str
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"""
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return self.sys_info["mac"]
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@mac.setter
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def mac(self, mac):
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"""
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Sets new mac address
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:param str mac: mac in hexadecimal with colons, e.g. 01:23:45:67:89:ab
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:raises SmartPlugException: on error
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"""
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self._query_helper("system", "set_mac_addr", {"mac": mac})
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self._fetch_sysinfo()
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