754 lines
24 KiB
Python
754 lines
24 KiB
Python
import asyncio
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import logging
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import socket
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import time
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from typing import Any, Callable, List, Optional, Tuple, Union, cast, Dict
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import attr
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from google.protobuf import message
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import aioesphomeapi.api_pb2 as pb
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_LOGGER = logging.getLogger(__name__)
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class APIConnectionError(Exception):
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pass
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MESSAGE_TYPE_TO_PROTO = {
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1: pb.HelloRequest,
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2: pb.HelloResponse,
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3: pb.ConnectRequest,
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4: pb.ConnectResponse,
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5: pb.DisconnectRequest,
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6: pb.DisconnectResponse,
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7: pb.PingRequest,
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8: pb.PingResponse,
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9: pb.DeviceInfoRequest,
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10: pb.DeviceInfoResponse,
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11: pb.ListEntitiesRequest,
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12: pb.ListEntitiesBinarySensorResponse,
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13: pb.ListEntitiesCoverResponse,
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14: pb.ListEntitiesFanResponse,
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15: pb.ListEntitiesLightResponse,
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16: pb.ListEntitiesSensorResponse,
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17: pb.ListEntitiesSwitchResponse,
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18: pb.ListEntitiesTextSensorResponse,
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19: pb.ListEntitiesDoneResponse,
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20: pb.SubscribeStatesRequest,
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21: pb.BinarySensorStateResponse,
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22: pb.CoverStateResponse,
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23: pb.FanStateResponse,
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24: pb.LightStateResponse,
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25: pb.SensorStateResponse,
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26: pb.SwitchStateResponse,
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27: pb.TextSensorStateResponse,
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28: pb.SubscribeLogsRequest,
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29: pb.SubscribeLogsResponse,
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30: pb.CoverCommandRequest,
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31: pb.FanCommandRequest,
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32: pb.LightCommandRequest,
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33: pb.SwitchCommandRequest,
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34: pb.SubscribeServiceCallsRequest,
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35: pb.ServiceCallResponse,
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36: pb.GetTimeRequest,
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37: pb.GetTimeResponse,
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}
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def _varuint_to_bytes(value: int) -> bytes:
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if value <= 0x7F:
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return bytes([value])
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ret = bytes()
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while value:
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temp = value & 0x7F
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value >>= 7
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if value:
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ret += bytes([temp | 0x80])
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else:
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ret += bytes([temp])
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return ret
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def _bytes_to_varuint(value: bytes) -> Optional[int]:
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result = 0
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bitpos = 0
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for val in value:
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result |= (val & 0x7F) << bitpos
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bitpos += 7
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if (val & 0x80) == 0:
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return result
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return None
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async def resolve_ip_address(eventloop: asyncio.events.AbstractEventLoop,
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host: str, port: int) -> Tuple[Any, ...]:
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try:
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res = await eventloop.getaddrinfo(host, port, family=socket.AF_INET,
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proto=socket.IPPROTO_TCP)
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except OSError as err:
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raise APIConnectionError("Error resolving IP address: {}".format(err))
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if not res:
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raise APIConnectionError("Error resolving IP address: No matches!")
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_, _, _, _, sockaddr = res[0]
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return sockaddr
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# Wrap some types in attr classes to make them serializable
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@attr.s
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class DeviceInfo:
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uses_password = attr.ib(type=bool)
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name = attr.ib(type=str)
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mac_address = attr.ib(type=str)
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esphome_core_version = attr.ib(type=str)
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compilation_time = attr.ib(type=str)
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model = attr.ib(type=str)
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has_deep_sleep = attr.ib(type=bool)
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@attr.s
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class EntityInfo:
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object_id = attr.ib(type=str)
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key = attr.ib(type=int)
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name = attr.ib(type=str)
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unique_id = attr.ib(type=str)
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@attr.s
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class EntityState:
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key = attr.ib(type=int)
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@attr.s
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class BinarySensorInfo(EntityInfo):
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device_class = attr.ib(type=str)
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is_status_binary_sensor = attr.ib(type=bool)
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@attr.s
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class BinarySensorState(EntityState):
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state = attr.ib(type=bool)
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@attr.s
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class CoverInfo(EntityInfo):
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is_optimistic = attr.ib(type=bool)
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COVER_STATE_OPEN = 0
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COVER_SATE_CLOSED = 1
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COVER_STATES = [COVER_STATE_OPEN, COVER_SATE_CLOSED]
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COVER_COMMAND_OPEN = 0
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COVER_COMMAND_CLOSE = 1
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COVER_COMMAND_STOP = 2
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COVER_COMMANDS = [COVER_COMMAND_OPEN, COVER_COMMAND_CLOSE, COVER_COMMAND_STOP]
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@attr.s
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class CoverState(EntityState):
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state = attr.ib(type=int, converter=int,
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validator=attr.validators.in_(COVER_STATES))
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@attr.s
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class FanInfo(EntityInfo):
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supports_oscillation = attr.ib(type=bool)
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supports_speed = attr.ib(type=bool)
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FAN_SPEED_LOW = 0
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FAN_SPEED_MEDIUM = 1
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FAN_SPEED_HIGH = 2
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FAN_SPEEDS = [FAN_SPEED_LOW, FAN_SPEED_MEDIUM, FAN_SPEED_HIGH]
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@attr.s
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class FanState(EntityState):
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state = attr.ib(type=bool)
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oscillating = attr.ib(type=bool)
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speed = attr.ib(type=int, converter=int,
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validator=attr.validators.in_(FAN_SPEEDS))
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@attr.s
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class LightInfo(EntityInfo):
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supports_brightness = attr.ib(type=bool)
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supports_rgb = attr.ib(type=bool)
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supports_white_value = attr.ib(type=bool)
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supports_color_temperature = attr.ib(type=bool)
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min_mireds = attr.ib(type=float)
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max_mireds = attr.ib(type=float)
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effects = attr.ib(type=List[str], converter=list)
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@attr.s
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class LightState(EntityState):
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state = attr.ib(type=bool)
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brightness = attr.ib(type=float)
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red = attr.ib(type=float)
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green = attr.ib(type=float)
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blue = attr.ib(type=float)
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white = attr.ib(type=float)
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color_temperature = attr.ib(type=float)
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effect = attr.ib(type=str)
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@attr.s
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class SensorInfo(EntityInfo):
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icon = attr.ib(type=str)
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unit_of_measurement = attr.ib(type=str)
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accuracy_decimals = attr.ib(type=int)
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@attr.s
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class SensorState(EntityState):
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state = attr.ib(type=float)
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@attr.s
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class SwitchInfo(EntityInfo):
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icon = attr.ib(type=str)
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optimistic = attr.ib(type=bool)
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@attr.s
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class SwitchState(EntityState):
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state = attr.ib(type=bool)
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@attr.s
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class TextSensorInfo(EntityInfo):
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icon = attr.ib(type=str)
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@attr.s
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class TextSensorState(EntityState):
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state = attr.ib(type=str)
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COMPONENT_TYPE_TO_INFO = {
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'binary_sensor': BinarySensorInfo,
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'cover': CoverInfo,
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'fan': FanInfo,
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'light': LightInfo,
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'sensor': SensorInfo,
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'switch': SwitchInfo,
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'text_sensor': TextSensorInfo,
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}
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@attr.s
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class ServiceCall:
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service = attr.ib(type=str)
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data = attr.ib(type=Dict[str, str], converter=dict)
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data_template = attr.ib(type=Dict[str, str], converter=dict)
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variables = attr.ib(type=Dict[str, str], converter=dict)
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class APIClient:
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def __init__(self, eventloop, address: str, port: int, password: str):
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self._eventloop = eventloop # type: asyncio.events.AbstractEventLoop
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self._address = address # type: str
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self._port = port # type: int
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self._password = password # type: Optional[str]
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self._socket = None # type: Optional[socket.socket]
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self._connected = False # type: bool
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self._authenticated = False # type: bool
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self._message_handlers = [] # type: List[Callable[[message], None]]
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self._keepalive = 60 # type: Union[float, int]
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self._ping_timer = None # type: Optional[asyncio.Future]
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self.on_disconnect = None
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self.on_login = None
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self.running_event = asyncio.Event()
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self._stop_event = asyncio.Event()
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self._socket_open_event = asyncio.Event()
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self._sock_reader = None # type: Optional[asyncio.StreamReader]
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self._sock_writer = None # type: Optional[asyncio.StreamWriter]
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self._refresh_ping()
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def _refresh_ping(self) -> None:
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if self._ping_timer is not None:
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self._ping_timer.cancel()
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self._ping_timer = None
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async def func() -> None:
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await asyncio.sleep(self._keepalive)
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self._ping_timer = None
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if self._connected:
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try:
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await self.ping()
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except APIConnectionError:
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await self._on_error()
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self._refresh_ping()
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self._ping_timer = asyncio.ensure_future(func(), loop=self._eventloop)
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async def _close_socket(self) -> None:
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if self._socket is not None:
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self._socket.close()
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self._socket = None
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if self._sock_writer is not None:
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self._sock_writer.close()
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if hasattr(self._sock_writer, 'wait_closed'):
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await self._sock_writer.wait_closed()
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self._sock_writer = None
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self._sock_reader = None
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self._socket_open_event.clear()
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self._connected = False
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self._authenticated = False
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def _cancel_ping(self) -> None:
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if self._ping_timer is not None:
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self._ping_timer.cancel()
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self._ping_timer = None
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async def start(self) -> None:
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self._eventloop.create_task(self.run_forever())
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await self.running_event.wait()
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async def stop(self, force: bool = False) -> None:
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if not self.running_event.is_set():
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raise ValueError
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if self._connected and not force:
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try:
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await self.disconnect()
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except APIConnectionError:
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pass
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await self._close_socket()
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self._stop_event.set()
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self._cancel_ping()
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async def connect(self) -> None:
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if not self.running_event.is_set():
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raise APIConnectionError("You need to call start() first!")
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if self._connected:
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raise APIConnectionError("Already connected!")
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self._message_handlers = []
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try:
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coro = resolve_ip_address(self._eventloop, self._address, self._port)
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sockaddr = await asyncio.wait_for(coro, 15.0)
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except APIConnectionError as err:
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raise err
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except asyncio.TimeoutError:
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raise APIConnectionError("Timeout while resolving IP address")
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self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self._socket.setblocking(False)
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self._socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
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_LOGGER.debug("Connecting to %s:%s (%s)", self._address, self._port, sockaddr)
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try:
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coro = self._eventloop.sock_connect(self._socket, sockaddr)
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await asyncio.wait_for(coro, 15.0)
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except OSError as err:
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await self._on_error()
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raise APIConnectionError("Error connecting to {}: {}".format(sockaddr, err))
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except asyncio.TimeoutError:
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raise APIConnectionError("Timeout while connecting to {}".format(sockaddr))
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self._sock_reader, self._sock_writer = await asyncio.open_connection(sock=self._socket)
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self._socket_open_event.set()
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hello = pb.HelloRequest()
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hello.client_info = 'Home Assistant'
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try:
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resp = await self._send_message_await_response(hello, pb.HelloResponse)
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except APIConnectionError as err:
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await self._on_error()
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raise err
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_LOGGER.debug("Successfully connected to %s ('%s' API=%s.%s)", self._address,
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resp.server_info, resp.api_version_major, resp.api_version_minor)
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self._connected = True
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def _check_connected(self) -> None:
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if not self._connected:
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raise APIConnectionError("Must be connected!")
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async def login(self) -> None:
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self._check_connected()
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if self._authenticated:
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raise APIConnectionError("Already logged in!")
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connect = pb.ConnectRequest()
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if self._password is not None:
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connect.password = self._password
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resp = await self._send_message_await_response(connect, pb.ConnectResponse)
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if resp.invalid_password:
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raise APIConnectionError("Invalid password!")
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self._authenticated = True
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if self.on_login is not None:
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await self.on_login()
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async def _on_error(self) -> None:
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was_connected = self._connected
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await self._close_socket()
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if was_connected and self.on_disconnect is not None:
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await self.on_disconnect()
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async def _write(self, data: bytes) -> None:
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_LOGGER.debug("Write: %s", ' '.join('{:02X}'.format(x) for x in data))
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try:
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self._sock_writer.write(data)
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await self._sock_writer.drain()
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except OSError as err:
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await self._on_error()
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raise APIConnectionError("Error while writing data: {}".format(err))
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async def _send_message(self, msg: message.Message) -> None:
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for message_type, klass in MESSAGE_TYPE_TO_PROTO.items():
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if isinstance(msg, klass):
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break
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else:
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raise ValueError
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encoded = msg.SerializeToString()
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_LOGGER.debug("Sending %s: %s", type(msg), str(msg))
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req = bytes([0])
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req += _varuint_to_bytes(len(encoded))
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req += _varuint_to_bytes(message_type)
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req += encoded
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await self._write(req)
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self._refresh_ping()
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async def _send_message_await_response_complex(self, send_msg: message.Message,
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do_append: Callable[[Any], bool],
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do_stop: Callable[[Any], bool],
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timeout: float = 1.0) -> List[Any]:
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fut = self._eventloop.create_future()
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responses = []
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def on_message(resp):
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if do_append(resp):
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responses.append(resp)
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if do_stop(resp):
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fut.set_result(responses)
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self._message_handlers.append(on_message)
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await self._send_message(send_msg)
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try:
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await asyncio.wait_for(fut, timeout)
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except asyncio.TimeoutError:
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raise APIConnectionError("Timeout while waiting for API response!")
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try:
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self._message_handlers.remove(on_message)
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except ValueError:
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pass
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return responses
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async def _send_message_await_response(self,
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send_msg: message.Message,
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response_type: Any, timeout: float = 1.0) -> Any:
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def is_response(msg):
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return isinstance(msg, response_type)
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res = await self._send_message_await_response_complex(
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send_msg, is_response, is_response, timeout=timeout)
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if len(res) != 1:
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raise APIConnectionError("Expected one result, got {}".format(len(res)))
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return res[0]
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async def device_info(self) -> DeviceInfo:
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self._check_connected()
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resp = await self._send_message_await_response(
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pb.DeviceInfoRequest(), pb.DeviceInfoResponse)
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return DeviceInfo(
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uses_password=resp.uses_password,
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name=resp.name,
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mac_address=resp.mac_address,
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esphome_core_version=resp.esphome_core_version,
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compilation_time=resp.compilation_time,
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model=resp.model,
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has_deep_sleep=resp.has_deep_sleep,
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)
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async def ping(self) -> None:
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self._check_connected()
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await self._send_message_await_response(pb.PingRequest(), pb.PingResponse)
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return
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async def disconnect(self) -> None:
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self._check_connected()
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try:
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await self._send_message_await_response(pb.DisconnectRequest(), pb.DisconnectResponse)
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except APIConnectionError:
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pass
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await self._close_socket()
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if self.on_disconnect is not None:
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await self.on_disconnect()
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def _check_authenticated(self) -> None:
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if not self._authenticated:
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raise APIConnectionError("Must login first!")
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async def list_entities(self) -> List[Any]:
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self._check_authenticated()
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response_types = {
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pb.ListEntitiesBinarySensorResponse: BinarySensorInfo,
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pb.ListEntitiesCoverResponse: CoverInfo,
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pb.ListEntitiesFanResponse: FanInfo,
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pb.ListEntitiesLightResponse: LightInfo,
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pb.ListEntitiesSensorResponse: SensorInfo,
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pb.ListEntitiesSwitchResponse: SwitchInfo,
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pb.ListEntitiesTextSensorResponse: TextSensorInfo,
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}
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def do_append(msg):
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return isinstance(msg, tuple(response_types.keys()))
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def do_stop(msg):
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return isinstance(msg, pb.ListEntitiesDoneResponse)
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resp = await self._send_message_await_response_complex(
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pb.ListEntitiesRequest(), do_append, do_stop, timeout=5)
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entities = []
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for msg in resp:
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cls = None
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for resp_type, cls in response_types.items():
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if isinstance(msg, resp_type):
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break
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kwargs = {}
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|
for key, _ in attr.fields_dict(cls).items():
|
|
kwargs[key] = getattr(msg, key)
|
|
entities.append(cls(**kwargs))
|
|
return entities
|
|
|
|
async def subscribe_states(self, on_state: Callable[[Any], None]) -> None:
|
|
self._check_authenticated()
|
|
|
|
response_types = {
|
|
pb.BinarySensorStateResponse: BinarySensorState,
|
|
pb.CoverStateResponse: CoverState,
|
|
pb.FanStateResponse: FanState,
|
|
pb.LightStateResponse: LightState,
|
|
pb.SensorStateResponse: SensorState,
|
|
pb.SwitchStateResponse: SwitchState,
|
|
pb.TextSensorStateResponse: TextSensorState,
|
|
}
|
|
|
|
def on_msg(msg):
|
|
for resp_type, cls in response_types.items():
|
|
if isinstance(msg, resp_type):
|
|
break
|
|
else:
|
|
return
|
|
|
|
kwargs = {}
|
|
for key, _ in attr.fields_dict(cls).items():
|
|
kwargs[key] = getattr(msg, key)
|
|
on_state(cls(**kwargs))
|
|
|
|
self._message_handlers.append(on_msg)
|
|
await self._send_message(pb.SubscribeStatesRequest())
|
|
|
|
async def subscribe_logs(self, on_log: Callable[[pb.SubscribeLogsResponse], None],
|
|
log_level=None) -> None:
|
|
self._check_authenticated()
|
|
|
|
def on_msg(msg):
|
|
if isinstance(msg, pb.SubscribeLogsResponse):
|
|
on_log(msg)
|
|
|
|
self._message_handlers.append(on_msg)
|
|
req = pb.SubscribeLogsRequest()
|
|
if log_level is not None:
|
|
req.level = log_level
|
|
await self._send_message(req)
|
|
|
|
async def subscribe_service_calls(self, on_service_call: Callable[[ServiceCall], None]) -> None:
|
|
self._check_authenticated()
|
|
|
|
def on_msg(msg):
|
|
if isinstance(msg, pb.ServiceCallResponse):
|
|
kwargs = {}
|
|
for key, _ in attr.fields_dict(ServiceCall).items():
|
|
kwargs[key] = getattr(msg, key)
|
|
on_service_call(ServiceCall(**kwargs))
|
|
|
|
self._message_handlers.append(on_msg)
|
|
await self._send_message(pb.SubscribeServiceCallsRequest())
|
|
|
|
async def cover_command(self,
|
|
key: int,
|
|
command: int
|
|
) -> None:
|
|
self._check_authenticated()
|
|
|
|
req = pb.CoverCommandRequest()
|
|
req.key = key
|
|
req.has_state = True
|
|
if command not in COVER_COMMANDS:
|
|
raise ValueError
|
|
req.command = command
|
|
await self._send_message(req)
|
|
|
|
async def fan_command(self,
|
|
key: int,
|
|
state: Optional[bool] = None,
|
|
speed: Optional[int] = None,
|
|
oscillating: Optional[bool] = None
|
|
) -> None:
|
|
self._check_authenticated()
|
|
|
|
req = pb.FanCommandRequest()
|
|
req.key = key
|
|
if state is not None:
|
|
req.has_state = True
|
|
req.state = state
|
|
if speed is not None:
|
|
req.has_speed = True
|
|
if speed not in FAN_SPEEDS:
|
|
raise ValueError
|
|
req.speed = speed
|
|
if oscillating is not None:
|
|
req.has_oscillating = True
|
|
req.oscillating = oscillating
|
|
await self._send_message(req)
|
|
|
|
async def light_command(self,
|
|
key: int,
|
|
state: Optional[bool] = None,
|
|
brightness: Optional[float] = None,
|
|
rgb: Optional[Tuple[float, float, float]] = None,
|
|
white: Optional[float] = None,
|
|
color_temperature: Optional[float] = None,
|
|
transition_length: Optional[float] = None,
|
|
flash_length: Optional[float] = None,
|
|
effect: Optional[str] = None,
|
|
):
|
|
self._check_authenticated()
|
|
|
|
req = pb.LightCommandRequest()
|
|
req.key = key
|
|
if state is not None:
|
|
req.has_state = True
|
|
req.state = state
|
|
if brightness is not None:
|
|
req.has_brightness = True
|
|
req.brightness = brightness
|
|
if rgb is not None:
|
|
req.has_rgb = True
|
|
req.red = rgb[0]
|
|
req.green = rgb[1]
|
|
req.blue = rgb[2]
|
|
if white is not None:
|
|
req.has_white = True
|
|
req.white = white
|
|
if color_temperature is not None:
|
|
req.has_color_temperature = True
|
|
req.color_temperature = color_temperature
|
|
if transition_length is not None:
|
|
req.has_transition_length = True
|
|
req.transition_length = int(round(transition_length / 1000))
|
|
if flash_length is not None:
|
|
req.has_flash_length = True
|
|
req.flash_length = int(round(flash_length / 1000))
|
|
if effect is not None:
|
|
req.has_effect = True
|
|
req.effect = effect
|
|
await self._send_message(req)
|
|
|
|
async def switch_command(self,
|
|
key: int,
|
|
state: bool
|
|
) -> None:
|
|
self._check_authenticated()
|
|
|
|
req = pb.SwitchCommandRequest()
|
|
req.key = key
|
|
req.state = state
|
|
await self._send_message(req)
|
|
|
|
async def _recv(self, amount: int) -> bytes:
|
|
if amount == 0:
|
|
return bytes()
|
|
|
|
try:
|
|
ret = await self._sock_reader.readexactly(amount)
|
|
except (asyncio.IncompleteReadError, OSError) as err:
|
|
raise APIConnectionError("Error while receiving data: {}".format(err))
|
|
|
|
return ret
|
|
|
|
async def _recv_varint(self) -> int:
|
|
raw = bytes()
|
|
while not raw or raw[-1] & 0x80:
|
|
raw += await self._recv(1)
|
|
return cast(int, _bytes_to_varuint(raw))
|
|
|
|
async def _run_once(self) -> None:
|
|
await self._socket_open_event.wait()
|
|
|
|
preamble = await self._recv(1)
|
|
if preamble[0] != 0x00:
|
|
raise APIConnectionError("Invalid preamble")
|
|
|
|
length = await self._recv_varint()
|
|
msg_type = await self._recv_varint()
|
|
|
|
raw_msg = await self._recv(length)
|
|
if msg_type not in MESSAGE_TYPE_TO_PROTO:
|
|
_LOGGER.debug("Skipping message type %s", msg_type)
|
|
return
|
|
|
|
msg = MESSAGE_TYPE_TO_PROTO[msg_type]()
|
|
msg.ParseFromString(raw_msg)
|
|
_LOGGER.debug("Got message of type %s: %s", type(msg), msg)
|
|
for msg_handler in self._message_handlers[:]:
|
|
msg_handler(msg)
|
|
await self._handle_internal_messages(msg)
|
|
self._refresh_ping()
|
|
|
|
async def run_forever(self) -> None:
|
|
if self.running_event.is_set():
|
|
raise ValueError
|
|
self.running_event.set()
|
|
try:
|
|
while True:
|
|
try:
|
|
await self._run_once()
|
|
except APIConnectionError as err:
|
|
if self._connected:
|
|
_LOGGER.debug("Error while reading incoming messages: %s", err)
|
|
await self._on_error()
|
|
except asyncio.CancelledError:
|
|
self.running_event.clear()
|
|
raise
|
|
|
|
async def _handle_internal_messages(self, msg: Any) -> None:
|
|
if isinstance(msg, pb.DisconnectRequest):
|
|
await self._send_message(pb.DisconnectResponse())
|
|
await self._close_socket()
|
|
if self.on_disconnect is not None:
|
|
await self.on_disconnect()
|
|
elif isinstance(msg, pb.PingRequest):
|
|
await self._send_message(pb.PingResponse())
|
|
elif isinstance(msg, pb.GetTimeRequest):
|
|
resp = pb.GetTimeResponse()
|
|
resp.epoch_seconds = int(time.time())
|
|
await self._send_message(resp)
|