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268 lines
7.6 KiB
Python
268 lines
7.6 KiB
Python
# Parts of this code reuse code and concepts by Lubomir Stroetmann from softScheck GmbH
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# licensed under the Apache License v 2.0.
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# Copy of the Apache License can be found at http://www.apache.org/licenses/LICENSE-2.0
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# The code from Lubomir Stroetmann is located at http://github.com/softScheck/tplink-smartplug
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import logging
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import socket
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import codecs
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import json
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import datetime
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_LOGGER = logging.getLogger(__name__)
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class SmartPlug(object):
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"""Class to access TPLink 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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# change state of plug
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p.state = "OFF"
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p.state = "ON"
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# query and print current state of plug
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print(p.state)
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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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def __init__(self, ip):
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"""Create a new SmartPlug instance identified by the IP."""
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self.ip = ip
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self.port = 9999
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self._error_report = False
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self.model = self._identify_model()
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@property
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def state(self):
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"""Get the device state (i.e. ON or OFF)."""
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response = self.hs100_status()
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if response is None:
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return 'unknown'
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elif response == 0:
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return "OFF"
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elif response == 1:
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return "ON"
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else:
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_LOGGER.warning("Unknown state %s returned" % str(response))
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return 'unknown'
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@state.setter
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def state(self, value):
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"""Set device state.
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:type value: str
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:param value: Future state (either ON or OFF)
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"""
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if value.upper() == 'ON':
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self.turn_on()
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elif value.upper() == 'OFF':
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self.turn_off()
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else:
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raise TypeError("State %s is not valid." % str(value))
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def hs100_status(self):
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"""Query HS100 for relay status."""
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.connect((self.ip, self.port))
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skip = 4
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code = 171
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response = ""
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query_str = ('00000023d0f0d2a1d8abdfbad7'
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'f5cfb494b6d1b4c09fec95e68f'
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'e187e8caf09eeb87ebcbb696eb')
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data = codecs.decode(query_str, 'hex_codec')
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s.send(data)
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reply = s.recv(4096)
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s.shutdown(1)
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s.close()
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for value in reply:
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if skip > 0:
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skip = skip - 1
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else:
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change = (value ^ code)
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response = response + chr(change)
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code = value
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info = json.loads(response)
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# info is reserved for future expansion.
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sys_info = info["system"]["get_sysinfo"]
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relay_state = sys_info["relay_state"]
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return relay_state
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def get_info(self):
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"""Interrogate the switch"""
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return self._send_command('{"system":{"get_sysinfo":{}}}')
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def turn_on(self):
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"""Turns the switch on
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Return values:
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True on success
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False on failure
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"""
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response = self._send_command('{"system":{"set_relay_state":{"state":1}}}')
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if response["system"]["set_relay_state"]["err_code"] == 0:
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return True
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return False
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def turn_off(self):
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"""Turns the switch off
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Return values:
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True on success
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False on failure
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"""
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response = self._send_command('{"system":{"set_relay_state":{"state":0}}}')
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if response["system"]["set_relay_state"]["err_code"] == 0:
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return True
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return False
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def get_emeter_realtime(self):
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"""Gets the current energy readings from the switch
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Return values:
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False if command is not successful or the switch doesn't support energy metering
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Dict with the current readings
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"""
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if self.model == 100:
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return False
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response = self._send_command('{"emeter":{"get_realtime":{}}}')
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if response["emeter"]["get_realtime"]["err_code"] != 0:
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return False
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response["emeter"]["get_realtime"].pop('err_code', None)
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return response["emeter"]["get_realtime"]
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def get_emeter_daily(self, year = datetime.datetime.now().year, month = datetime.datetime.now().month):
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"""Gets daily statistics for a given month.
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Arguments:
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year (optional): The year for which to retrieve statistics, defaults to current year
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month (optional): The mont for which to retrieve statistics, defaults to current month
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Return values:
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False if command is not successful or the switch doesn't support energy metering
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Dict where the keys represent the days, and the values are the aggregated statistics
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"""
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if self.model == 100:
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return False
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response = self._send_command('{"emeter":{"get_daystat":{"month":' + str(month) + ',"year":' + str(year) + '}}}')
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if response["emeter"]["get_daystat"]["err_code"] != 0:
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return False
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data = dict()
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for i, j in enumerate(response["emeter"]["get_daystat"]["day_list"]):
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if j["energy"] > 0:
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data[j["day"]] = j["energy"]
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return data
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def get_emeter_monthly(self, year = datetime.datetime.now().year):
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"""Gets monthly statistics for a given year.
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Arguments:
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year (optional): The year for which to retrieve statistics, defaults to current year
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Return values:
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False if command is not successful or the switch doesn't support energy metering
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Dict - the keys represent the months, the values are the aggregated statistics
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"""
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if self.model == 100:
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return False
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response = self._send_command('{"emeter":{"get_monthstat":{"year":' + str(year) + '}}}')
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if response["emeter"]["get_monthstat"]["err_code"] != 0:
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return False
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data = dict()
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for i, j in enumerate(response["emeter"]["get_monthstat"]["month_list"]):
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if j["energy"] > 0:
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data[j["month"]] = j["energy"]
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return data
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def erase_emeter_stats(self):
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"""Erases all statistics.
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Return values:
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True: Success
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False: Failure or not supported by switch
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"""
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if self.model == 100:
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return False
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response = self._send_command('{"emeter":{"erase_emeter_stat":null}}')
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if response["emeter"]["erase_emeter_stat"]["err_code"] != 0:
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return False
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else:
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return True
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def current_consumption(self):
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"""Get the current power consumption in Watt."""
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response = self.get_emeter_realtime()
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return response["power"]
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def _encrypt(self, string):
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"""Encrypts a command."""
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key = 171
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result = "\0\0\0\0"
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for i in string:
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a = key ^ ord(i)
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key = a
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result += chr(a)
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return result
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def _decrypt(self, string):
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"""Decrypts a command."""
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key = 171
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result = ""
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for i in string:
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a = key ^ ord(i)
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key = ord(i)
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result += chr(a)
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return result
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def _send_command(self, command):
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"""Sends a command to the switch.
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Accepts one argument - the command as a string
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Return values:
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The decrypted JSON
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"""
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.connect((self.ip, self.port))
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s.send(self._encrypt(command))
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response = self._decrypt(s.recv(4096)[4:])
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s.close()
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return json.loads(response)
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def _identify_model(self):
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"""Query sysinfo and determine model"""
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sys_info = self.get_info()
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if sys_info["system"]["get_sysinfo"]["model"][:5] == 'HS100':
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model = 100
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elif sys_info["system"]["get_sysinfo"]["model"][:5] == 'HS110':
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model = 110
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return model |