mirror of
https://github.com/python-kasa/python-kasa.git
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685 lines
23 KiB
Python
Executable File
685 lines
23 KiB
Python
Executable File
"""Python library supporting TP-Link Smart Home devices.
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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 annotations
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import functools
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import inspect
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import logging
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from collections.abc import Mapping, Sequence
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from datetime import datetime, timedelta, tzinfo
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from typing import TYPE_CHECKING, Any, Callable, cast
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from warnings import warn
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from ..device import Device, WifiNetwork
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from ..deviceconfig import DeviceConfig
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from ..exceptions import KasaException
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from ..feature import Feature
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from ..module import Module
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from ..modulemapping import ModuleMapping, ModuleName
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from ..protocol import BaseProtocol
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from .iotmodule import IotModule, merge
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from .modules import Emeter
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_LOGGER = logging.getLogger(__name__)
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def requires_update(f: Callable) -> Any:
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"""Indicate that `update` should be called before accessing this method.""" # noqa: D202
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if inspect.iscoroutinefunction(f):
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@functools.wraps(f)
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async def wrapped(*args: Any, **kwargs: Any) -> Any:
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self = args[0]
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if self._last_update is None and f.__name__ not in self._sys_info:
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raise KasaException("You need to await update() to access the data")
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return await f(*args, **kwargs)
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else:
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@functools.wraps(f)
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def wrapped(*args: Any, **kwargs: Any) -> Any:
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self = args[0]
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if self._last_update is None and f.__name__ not in self._sys_info:
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raise KasaException("You need to await update() to access the data")
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return f(*args, **kwargs)
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f.requires_update = True # type: ignore[attr-defined]
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return wrapped
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@functools.lru_cache
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def _parse_features(features: str) -> set[str]:
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"""Parse features string."""
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return set(features.split(":"))
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class IotDevice(Device):
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"""Base class for all supported device types.
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You don't usually want to initialize this class manually,
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but either use :class:`Discover` class, or use one of the subclasses:
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* :class:`IotPlug`
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* :class:`IotBulb`
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* :class:`IotStrip`
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* :class:`IotDimmer`
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* :class:`IotLightStrip`
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To initialize, you have to await :func:`update()` at least once.
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This will allow accessing the properties using the exposed properties.
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All changes to the device are done using awaitable methods,
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which will not change the cached values, but you must await update() separately.
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Errors reported by the device are raised as
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:class:`KasaException <kasa.exceptions.KasaException>`,
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and should be handled by the user of the library.
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Examples:
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>>> import asyncio
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>>> dev = IotDevice("127.0.0.1")
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>>> asyncio.run(dev.update())
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All devices provide several informational properties:
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>>> dev.alias
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Bedroom Lamp Plug
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>>> dev.model
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HS110(EU)
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>>> dev.rssi
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-71
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>>> dev.mac
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50:C7:BF:00:00:00
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Some information can also be changed programmatically:
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>>> asyncio.run(dev.set_alias("new alias"))
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>>> asyncio.run(dev.set_mac("01:23:45:67:89:ab"))
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>>> asyncio.run(dev.update())
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>>> dev.alias
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new alias
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>>> dev.mac
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01:23:45:67:89:ab
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When initialized using discovery or using a subclass,
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you can check the type of the device:
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>>> dev.is_bulb
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False
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>>> dev.is_strip
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False
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>>> dev.is_plug
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True
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You can also get the hardware and software as a dict,
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or access the full device response:
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>>> dev.hw_info
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{'sw_ver': '1.2.5 Build 171213 Rel.101523',
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'hw_ver': '1.0',
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'mac': '01:23:45:67:89:ab',
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'type': 'IOT.SMARTPLUGSWITCH',
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'hwId': '00000000000000000000000000000000',
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'fwId': '00000000000000000000000000000000',
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'oemId': '00000000000000000000000000000000',
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'dev_name': 'Wi-Fi Smart Plug With Energy Monitoring'}
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>>> dev.sys_info
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All devices can be turned on and off:
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>>> asyncio.run(dev.turn_off())
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>>> asyncio.run(dev.turn_on())
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>>> asyncio.run(dev.update())
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>>> dev.is_on
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True
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Some devices provide energy consumption meter,
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and regular update will already fetch some information:
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>>> dev.has_emeter
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True
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>>> dev.emeter_realtime
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<EmeterStatus power=0.928511 voltage=231.067823 current=0.014937 total=55.139>
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>>> dev.emeter_today
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>>> dev.emeter_this_month
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You can also query the historical data (note that these needs to be awaited),
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keyed with month/day:
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>>> asyncio.run(dev.get_emeter_monthly(year=2016))
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{11: 1.089, 12: 1.582}
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>>> asyncio.run(dev.get_emeter_daily(year=2016, month=11))
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{24: 0.026, 25: 0.109}
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"""
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emeter_type = "emeter"
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def __init__(
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self,
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host: str,
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*,
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config: DeviceConfig | None = None,
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protocol: BaseProtocol | None = None,
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) -> None:
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"""Create a new IotDevice instance."""
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super().__init__(host=host, config=config, protocol=protocol)
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self._sys_info: Any = None # TODO: this is here to avoid changing tests
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self._supported_modules: dict[str | ModuleName[Module], IotModule] | None = None
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self._legacy_features: set[str] = set()
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self._children: Mapping[str, IotDevice] = {}
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self._modules: dict[str | ModuleName[Module], IotModule] = {}
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self._on_since: datetime | None = None
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@property
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def children(self) -> Sequence[IotDevice]:
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"""Return list of children."""
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return list(self._children.values())
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@property
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@requires_update
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def modules(self) -> ModuleMapping[IotModule]:
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"""Return the device modules."""
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if TYPE_CHECKING:
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return cast(ModuleMapping[IotModule], self._supported_modules)
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return self._supported_modules
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def add_module(self, name: str | ModuleName[Module], module: IotModule) -> None:
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"""Register a module."""
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if name in self._modules:
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_LOGGER.debug("Module %s already registered, ignoring...", name)
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return
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_LOGGER.debug("Adding module %s", module)
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self._modules[name] = module
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def _create_request(
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self,
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target: str,
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cmd: str,
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arg: dict | None = None,
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child_ids: list | None = None,
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) -> dict:
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if arg is None:
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arg = {}
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request: dict[str, Any] = {target: {cmd: arg}}
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if child_ids is not None:
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request = {"context": {"child_ids": child_ids}, target: {cmd: arg}}
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return request
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def _verify_emeter(self) -> None:
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"""Raise an exception if there is no emeter."""
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if not self.has_emeter:
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raise KasaException("Device has no emeter")
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if self.emeter_type not in self._last_update:
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raise KasaException("update() required prior accessing emeter")
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async def _query_helper(
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self,
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target: str,
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cmd: str,
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arg: dict | None = None,
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child_ids: list | None = None,
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) -> dict:
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"""Query device, return results or raise an exception.
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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: payload dict to be send to the device
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:param child_ids: ids of child devices
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:return: Unwrapped result for the call.
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"""
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request = self._create_request(target, cmd, arg, child_ids)
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try:
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response = await self._raw_query(request=request)
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except Exception as ex:
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raise KasaException(f"Communication error on {target}:{cmd}") from ex
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if target not in response:
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raise KasaException(f"No required {target} in response: {response}")
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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 KasaException(f"Error on {target}.{cmd}: {result}")
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if cmd not in result:
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raise KasaException(f"No command in response: {response}")
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result = result[cmd]
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if "err_code" in result and result["err_code"] != 0:
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raise KasaException(f"Error on {target} {cmd}: {result}")
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if "err_code" in result:
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del result["err_code"]
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return result
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@property # type: ignore
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@requires_update
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def features(self) -> dict[str, Feature]:
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"""Return a set of features that the device supports."""
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return self._features
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@property # type: ignore
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@requires_update
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def has_emeter(self) -> bool:
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"""Return True if device has an energy meter."""
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return "ENE" in self._legacy_features
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async def get_sys_info(self) -> dict[str, Any]:
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"""Retrieve system information."""
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return await self._query_helper("system", "get_sysinfo")
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async def update(self, update_children: bool = True) -> None:
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"""Query the device to update the data.
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Needed for properties that are decorated with `requires_update`.
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"""
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req = {}
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req.update(self._create_request("system", "get_sysinfo"))
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# If this is the initial update, check only for the sysinfo
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# This is necessary as some devices crash on unexpected modules
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# See #105, #120, #161
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if self._last_update is None:
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_LOGGER.debug("Performing the initial update to obtain sysinfo")
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response = await self.protocol.query(req)
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self._last_update = response
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self._set_sys_info(response["system"]["get_sysinfo"])
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if not self._modules:
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await self._initialize_modules()
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await self._modular_update(req)
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self._set_sys_info(self._last_update["system"]["get_sysinfo"])
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for module in self._modules.values():
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await module._post_update_hook()
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if not self._features:
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await self._initialize_features()
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async def _initialize_modules(self) -> None:
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"""Initialize modules not added in init."""
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if self.has_emeter:
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_LOGGER.debug(
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"The device has emeter, querying its information along sysinfo"
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)
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self.add_module(Module.Energy, Emeter(self, self.emeter_type))
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async def _initialize_features(self) -> None:
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"""Initialize common features."""
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self._add_feature(
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Feature(
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self,
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id="state",
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name="State",
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attribute_getter="is_on",
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attribute_setter="set_state",
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type=Feature.Type.Switch,
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category=Feature.Category.Primary,
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)
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)
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self._add_feature(
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Feature(
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device=self,
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id="rssi",
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name="RSSI",
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attribute_getter="rssi",
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icon="mdi:signal",
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unit_getter=lambda: "dBm",
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category=Feature.Category.Debug,
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type=Feature.Type.Sensor,
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)
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)
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# iot strips calculate on_since from the children
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if "on_time" in self._sys_info or self.device_type == Device.Type.Strip:
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self._add_feature(
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Feature(
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device=self,
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id="on_since",
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name="On since",
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attribute_getter="on_since",
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icon="mdi:clock",
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category=Feature.Category.Info,
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type=Feature.Type.Sensor,
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)
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)
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self._add_feature(
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Feature(
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device=self,
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id="reboot",
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name="Reboot",
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attribute_setter="reboot",
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icon="mdi:restart",
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category=Feature.Category.Debug,
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type=Feature.Type.Action,
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)
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)
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for module in self.modules.values():
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module._initialize_features()
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for module_feat in module._module_features.values():
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self._add_feature(module_feat)
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async def _modular_update(self, req: dict) -> None:
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"""Execute an update query."""
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request_list = []
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est_response_size = 1024 if "system" in req else 0
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for module in self._modules.values():
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if not module.is_supported:
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_LOGGER.debug("Module %s not supported, skipping", module)
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continue
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est_response_size += module.estimated_query_response_size
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if est_response_size > self.max_device_response_size:
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request_list.append(req)
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req = {}
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est_response_size = module.estimated_query_response_size
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q = module.query()
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_LOGGER.debug("Adding query for %s: %s", module, q)
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req = merge(req, q)
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request_list.append(req)
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responses = [
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await self.protocol.query(request) for request in request_list if request
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]
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# Preserve the last update and merge
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# responses on top of it so we remember
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# which modules are not supported, otherwise
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# every other update will query for them
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update: dict = self._last_update.copy() if self._last_update else {}
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for response in responses:
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update = {**update, **response}
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self._last_update = update
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# IOT modules are added as default but could be unsupported post first update
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if self._supported_modules is None:
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supported = {}
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for module_name, module in self._modules.items():
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if module.is_supported:
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supported[module_name] = module
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self._supported_modules = supported
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def update_from_discover_info(self, info: dict[str, Any]) -> None:
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"""Update state from info from the discover call."""
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self._discovery_info = info
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if "system" in info and (sys_info := info["system"].get("get_sysinfo")):
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self._last_update = info
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self._set_sys_info(sys_info)
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else:
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# This allows setting of some info properties directly
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# from partial discovery info that will then be found
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# by the requires_update decorator
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self._set_sys_info(info)
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def _set_sys_info(self, sys_info: dict[str, Any]) -> None:
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"""Set sys_info."""
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self._sys_info = sys_info
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if features := sys_info.get("feature"):
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self._legacy_features = _parse_features(features)
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@property # type: ignore
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@requires_update
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def sys_info(self) -> dict[str, Any]:
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"""
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Return system information.
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Do not call this function from within the SmartDevice
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class itself as @requires_update will be affected for other properties.
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"""
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return self._sys_info # type: ignore
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@property # type: ignore
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@requires_update
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def model(self) -> str:
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"""Return device model."""
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sys_info = self._sys_info
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return str(sys_info["model"])
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@property # type: ignore
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def alias(self) -> str | None:
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"""Return device name (alias)."""
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sys_info = self._sys_info
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return sys_info.get("alias") if sys_info else None
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async def set_alias(self, alias: str) -> dict:
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"""Set the device name (alias)."""
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return await self._query_helper("system", "set_dev_alias", {"alias": alias})
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@property
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@requires_update
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def time(self) -> datetime:
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"""Return current time from the device."""
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return self.modules[Module.Time].time
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@property
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@requires_update
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def timezone(self) -> tzinfo:
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"""Return the current timezone."""
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return self.modules[Module.Time].timezone
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async def get_time(self) -> datetime:
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"""Return current time from the device, if available."""
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msg = "Use `time` property instead, this call will be removed in the future."
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warn(msg, DeprecationWarning, stacklevel=2)
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return self.time
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async def get_timezone(self) -> tzinfo:
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"""Return timezone information."""
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msg = (
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"Use `timezone` property instead, this call will be removed in the future."
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)
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warn(msg, DeprecationWarning, stacklevel=2)
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return self.timezone
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@property # type: ignore
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@requires_update
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def hw_info(self) -> dict:
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"""Return hardware information.
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This returns just a selection of sysinfo keys that are related to hardware.
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"""
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keys = [
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"sw_ver",
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"hw_ver",
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"mac",
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"mic_mac",
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"type",
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"mic_type",
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"hwId",
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"fwId",
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"oemId",
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"dev_name",
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]
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sys_info = self._sys_info
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return {key: sys_info[key] for key in keys if key in sys_info}
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@property # type: ignore
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@requires_update
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def location(self) -> dict:
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"""Return geographical location."""
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sys_info = self._sys_info
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loc = {"latitude": None, "longitude": None}
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if "latitude" in sys_info and "longitude" in sys_info:
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loc["latitude"] = sys_info["latitude"]
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loc["longitude"] = sys_info["longitude"]
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elif "latitude_i" in sys_info and "longitude_i" in sys_info:
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loc["latitude"] = sys_info["latitude_i"] / 10000
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loc["longitude"] = sys_info["longitude_i"] / 10000
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else:
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_LOGGER.debug("Unsupported device location.")
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return loc
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@property # type: ignore
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@requires_update
|
|
def rssi(self) -> int | None:
|
|
"""Return WiFi signal strength (rssi)."""
|
|
rssi = self._sys_info.get("rssi")
|
|
return None if rssi is None else int(rssi)
|
|
|
|
@property # type: ignore
|
|
@requires_update
|
|
def mac(self) -> str:
|
|
"""Return mac address.
|
|
|
|
:return: mac address in hexadecimal with colons, e.g. 01:23:45:67:89:ab
|
|
"""
|
|
sys_info = self._sys_info
|
|
mac = sys_info.get("mac", sys_info.get("mic_mac"))
|
|
if not mac:
|
|
raise KasaException(
|
|
"Unknown mac, please submit a bug report with sys_info output."
|
|
)
|
|
mac = mac.replace("-", ":")
|
|
# Format a mac that has no colons (usually from mic_mac field)
|
|
if ":" not in mac:
|
|
mac = ":".join(format(s, "02x") for s in bytes.fromhex(mac))
|
|
|
|
return mac
|
|
|
|
async def set_mac(self, mac: str) -> dict:
|
|
"""Set the mac address.
|
|
|
|
:param str mac: mac in hexadecimal with colons, e.g. 01:23:45:67:89:ab
|
|
"""
|
|
return await self._query_helper("system", "set_mac_addr", {"mac": mac})
|
|
|
|
async def reboot(self, delay: int = 1) -> None:
|
|
"""Reboot the device.
|
|
|
|
Note that giving a delay of zero causes this to block,
|
|
as the device reboots immediately without responding to the call.
|
|
"""
|
|
await self._query_helper("system", "reboot", {"delay": delay})
|
|
|
|
async def factory_reset(self) -> None:
|
|
"""Reset device back to factory settings.
|
|
|
|
Note, this does not downgrade the firmware.
|
|
"""
|
|
await self._query_helper("system", "reset")
|
|
|
|
async def turn_off(self, **kwargs) -> dict:
|
|
"""Turn off the device."""
|
|
raise NotImplementedError("Device subclass needs to implement this.")
|
|
|
|
async def turn_on(self, **kwargs) -> dict:
|
|
"""Turn device on."""
|
|
raise NotImplementedError("Device subclass needs to implement this.")
|
|
|
|
@property # type: ignore
|
|
@requires_update
|
|
def is_on(self) -> bool:
|
|
"""Return True if the device is on."""
|
|
raise NotImplementedError("Device subclass needs to implement this.")
|
|
|
|
async def set_state(self, on: bool) -> dict:
|
|
"""Set the device state."""
|
|
if on:
|
|
return await self.turn_on()
|
|
else:
|
|
return await self.turn_off()
|
|
|
|
@property # type: ignore
|
|
@requires_update
|
|
def on_since(self) -> datetime | None:
|
|
"""Return the time that the device was turned on or None if turned off.
|
|
|
|
This returns a cached value if the device reported value difference is under
|
|
five seconds to avoid device-caused jitter.
|
|
"""
|
|
if self.is_off or "on_time" not in self._sys_info:
|
|
self._on_since = None
|
|
return None
|
|
|
|
on_time = self._sys_info["on_time"]
|
|
|
|
on_since = self.time - timedelta(seconds=on_time)
|
|
if not self._on_since or timedelta(
|
|
seconds=0
|
|
) < on_since - self._on_since > timedelta(seconds=5):
|
|
self._on_since = on_since
|
|
return self._on_since
|
|
|
|
@property # type: ignore
|
|
@requires_update
|
|
def device_id(self) -> str:
|
|
"""Return unique ID for the device.
|
|
|
|
If not overridden, this is the MAC address of the device.
|
|
Individual sockets on strips will override this.
|
|
"""
|
|
return self.mac
|
|
|
|
async def wifi_scan(self) -> list[WifiNetwork]: # noqa: D202
|
|
"""Scan for available wifi networks."""
|
|
|
|
async def _scan(target: str) -> dict:
|
|
return await self._query_helper(target, "get_scaninfo", {"refresh": 1})
|
|
|
|
try:
|
|
info = await _scan("netif")
|
|
except KasaException as ex:
|
|
_LOGGER.debug(
|
|
"Unable to scan using 'netif', retrying with 'softaponboarding': %s", ex
|
|
)
|
|
info = await _scan("smartlife.iot.common.softaponboarding")
|
|
|
|
if "ap_list" not in info:
|
|
raise KasaException(f"Invalid response for wifi scan: {info}")
|
|
|
|
return [WifiNetwork(**x) for x in info["ap_list"]]
|
|
|
|
async def wifi_join(self, ssid: str, password: str, keytype: str = "3") -> dict: # noqa: D202
|
|
"""Join the given wifi network.
|
|
|
|
If joining the network fails, the device will return to AP mode after a while.
|
|
"""
|
|
|
|
async def _join(target: str, payload: dict) -> dict:
|
|
return await self._query_helper(target, "set_stainfo", payload)
|
|
|
|
payload = {"ssid": ssid, "password": password, "key_type": int(keytype)}
|
|
try:
|
|
return await _join("netif", payload)
|
|
except KasaException as ex:
|
|
_LOGGER.debug(
|
|
"Unable to join using 'netif', retrying with 'softaponboarding': %s", ex
|
|
)
|
|
return await _join("smartlife.iot.common.softaponboarding", payload)
|
|
|
|
@property
|
|
def max_device_response_size(self) -> int:
|
|
"""Returns the maximum response size the device can safely construct."""
|
|
return 16 * 1024
|
|
|
|
@property
|
|
def internal_state(self) -> Any:
|
|
"""Return the internal state of the instance.
|
|
|
|
The returned object contains the raw results from the last update call.
|
|
This should only be used for debugging purposes.
|
|
"""
|
|
return self._last_update or self._discovery_info
|