mirror of
https://github.com/esphome/esphome.git
synced 2024-12-23 22:14:54 +01:00
490 lines
15 KiB
Python
490 lines
15 KiB
Python
from datetime import datetime
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import functools
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import logging
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import socket
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import threading
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import time
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# pylint: disable=unused-import
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from typing import Optional # noqa
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from google.protobuf import message # noqa
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from esphomeyaml import const
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import esphomeyaml.api.api_pb2 as pb
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from esphomeyaml.const import CONF_PASSWORD, CONF_PORT
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from esphomeyaml.core import EsphomeyamlError
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from esphomeyaml.helpers import resolve_ip_address, indent, color
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from esphomeyaml.py_compat import text_type, IS_PY2, byte_to_bytes, char_to_byte, format_bytes
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from esphomeyaml.util import safe_print
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_LOGGER = logging.getLogger(__name__)
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class APIConnectionError(EsphomeyamlError):
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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):
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if value <= 0x7F:
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return byte_to_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 += byte_to_bytes(temp | 0x80)
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else:
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ret += byte_to_bytes(temp)
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return ret
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def _bytes_to_varuint(value):
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result = 0
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bitpos = 0
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for c in value:
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val = char_to_byte(c)
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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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# pylint: disable=too-many-instance-attributes,not-callable
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class APIClient(threading.Thread):
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def __init__(self, address, port, password):
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threading.Thread.__init__(self)
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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._socket_open_event = threading.Event()
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self._socket_write_lock = threading.Lock()
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self._connected = False
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self._authenticated = False
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self._message_handlers = []
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self._keepalive = 5
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self._ping_timer = None
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self._refresh_ping()
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self.on_disconnect = None
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self.on_connect = None
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self.on_login = None
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self.auto_reconnect = False
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self._running_event = threading.Event()
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self._stop_event = threading.Event()
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@property
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def stopped(self):
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return self._stop_event.is_set()
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def _refresh_ping(self):
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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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def func():
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self._ping_timer = None
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if self._connected:
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try:
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self.ping()
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except APIConnectionError:
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self._fatal_error()
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else:
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self._refresh_ping()
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self._ping_timer = threading.Timer(self._keepalive, func)
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self._ping_timer.start()
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def _cancel_ping(self):
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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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def _close_socket(self):
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self._cancel_ping()
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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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self._socket_open_event.clear()
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self._connected = False
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self._authenticated = False
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self._message_handlers = []
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def stop(self, force=False):
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if self.stopped:
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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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self.disconnect()
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except APIConnectionError:
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pass
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self._close_socket()
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self._stop_event.set()
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if not force:
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self.join()
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def connect(self):
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if not self._running_event.wait(0.1):
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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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try:
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ip = resolve_ip_address(self._address)
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except EsphomeyamlError as err:
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_LOGGER.warning("Error resolving IP address of %s. Is it connected to WiFi?",
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self._address)
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_LOGGER.warning("(If this error persists, please set a static IP address: "
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"https://esphomelib.com/esphomeyaml/components/wifi.html#manual-ips)")
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raise APIConnectionError(err)
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_LOGGER.info("Connecting to %s:%s (%s)", self._address, self._port, ip)
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self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self._socket.settimeout(10.0)
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self._socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
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try:
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self._socket.connect((ip, self._port))
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except socket.error as err:
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self._fatal_error()
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raise APIConnectionError("Error connecting to {}: {}".format(ip, err))
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self._socket.settimeout(0.1)
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self._socket_open_event.set()
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hello = pb.HelloRequest()
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hello.client_info = 'esphomeyaml v{}'.format(const.__version__)
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try:
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resp = self._send_message_await_response(hello, pb.HelloResponse)
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except APIConnectionError as err:
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self._fatal_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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if self.on_connect is not None:
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self.on_connect()
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def _check_connected(self):
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if not self._connected:
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self._fatal_error()
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raise APIConnectionError("Must be connected!")
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def login(self):
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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 = 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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self.on_login()
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def _fatal_error(self):
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was_connected = self._connected
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self._close_socket()
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if was_connected and self.on_disconnect is not None:
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self.on_disconnect()
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def _write(self, data): # type: (bytes) -> None
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if self._socket is None:
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raise APIConnectionError("Socket closed")
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_LOGGER.debug("Write: %s", format_bytes(data))
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with self._socket_write_lock:
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try:
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self._socket.sendall(data)
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except socket.error as err:
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self._fatal_error()
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raise APIConnectionError("Error while writing data: {}".format(err))
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def _send_message(self, msg):
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# type: (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:\n%s", type(msg), indent(text_type(msg)))
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if IS_PY2:
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req = chr(0x00)
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else:
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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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self._write(req)
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self._refresh_ping()
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def _send_message_await_response_complex(self, send_msg, do_append, do_stop, timeout=1):
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event = threading.Event()
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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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event.set()
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self._message_handlers.append(on_message)
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self._send_message(send_msg)
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ret = event.wait(timeout)
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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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if not ret:
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raise APIConnectionError("Timeout while waiting for message response!")
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return responses
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def _send_message_await_response(self, send_msg, response_type, timeout=1):
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def is_response(msg):
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return isinstance(msg, response_type)
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return self._send_message_await_response_complex(send_msg, is_response, is_response,
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timeout)[0]
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def device_info(self):
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self._check_connected()
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return self._send_message_await_response(pb.DeviceInfoRequest(), pb.DeviceInfoResponse)
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def ping(self):
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self._check_connected()
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return self._send_message_await_response(pb.PingRequest(), pb.PingResponse)
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def disconnect(self):
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self._check_connected()
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try:
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self._send_message_await_response(pb.DisconnectRequest(), pb.DisconnectResponse)
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except APIConnectionError:
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pass
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self._close_socket()
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if self.on_disconnect is not None:
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self.on_disconnect()
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def _check_authenticated(self):
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if not self._authenticated:
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raise APIConnectionError("Must login first!")
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def subscribe_logs(self, on_log, log_level=None, dump_config=False):
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self._check_authenticated()
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def on_msg(msg):
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if isinstance(msg, pb.SubscribeLogsResponse):
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on_log(msg)
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self._message_handlers.append(on_msg)
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req = pb.SubscribeLogsRequest(dump_config=dump_config)
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if log_level is not None:
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req.level = log_level
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self._send_message(req)
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def _recv(self, amount):
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ret = bytes()
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if amount == 0:
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return ret
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while len(ret) < amount:
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if self.stopped:
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raise APIConnectionError("Stopped!")
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if not self._socket_open_event.is_set():
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raise APIConnectionError("No socket!")
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try:
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val = self._socket.recv(amount - len(ret))
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except AttributeError:
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raise APIConnectionError("Socket was closed")
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except socket.timeout:
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continue
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except socket.error as err:
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raise APIConnectionError("Error while receiving data: {}".format(err))
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ret += val
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return ret
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def _recv_varint(self):
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raw = bytes()
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while not raw or char_to_byte(raw[-1]) & 0x80:
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raw += self._recv(1)
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return _bytes_to_varuint(raw)
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def _run_once(self):
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if not self._socket_open_event.wait(0.1):
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return
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# Preamble
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if char_to_byte(self._recv(1)[0]) != 0x00:
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raise APIConnectionError("Invalid preamble")
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length = self._recv_varint()
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msg_type = self._recv_varint()
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raw_msg = self._recv(length)
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if msg_type not in MESSAGE_TYPE_TO_PROTO:
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_LOGGER.debug("Skipping message type %s", msg_type)
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return
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msg = MESSAGE_TYPE_TO_PROTO[msg_type]()
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msg.ParseFromString(raw_msg)
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_LOGGER.debug("Got message: %s:\n%s", type(msg), indent(str(msg)))
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for msg_handler in self._message_handlers[:]:
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msg_handler(msg)
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self._handle_internal_messages(msg)
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self._refresh_ping()
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def run(self):
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self._running_event.set()
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while not self.stopped:
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try:
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self._run_once()
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except APIConnectionError as err:
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if self.stopped:
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break
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if self._connected:
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_LOGGER.error("Error while reading incoming messages: %s", err)
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self._fatal_error()
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self._running_event.clear()
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def _handle_internal_messages(self, msg):
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if isinstance(msg, pb.DisconnectRequest):
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self._send_message(pb.DisconnectResponse())
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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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self._connected = False
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if self.on_disconnect is not None:
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self.on_disconnect()
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elif isinstance(msg, pb.PingRequest):
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self._send_message(pb.PingResponse())
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elif isinstance(msg, pb.GetTimeRequest):
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resp = pb.GetTimeResponse()
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resp.epoch_seconds = int(time.time())
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self._send_message(resp)
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def run_logs(config, address):
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conf = config['api']
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port = conf[CONF_PORT]
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password = conf[CONF_PASSWORD]
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_LOGGER.info("Starting log output from %s using esphomelib API", address)
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cli = APIClient(address, port, password)
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stopping = False
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retry_timer = []
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def try_connect(tries=0, is_disconnect=True):
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if stopping:
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return
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if is_disconnect:
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_LOGGER.warning(u"Disconnected from API.")
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while retry_timer:
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retry_timer.pop(0).cancel()
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error = None
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try:
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cli.connect()
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cli.login()
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except APIConnectionError as err: # noqa
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error = err
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if error is None:
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_LOGGER.info("Successfully connected to %s", address)
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return
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wait_time = min(2**tries, 300)
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_LOGGER.warning(u"Couldn't connect to API (%s). Trying to reconnect in %s seconds",
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error, wait_time)
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timer = threading.Timer(wait_time, functools.partial(try_connect, tries + 1, is_disconnect))
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timer.start()
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retry_timer.append(timer)
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def on_log(msg):
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time_ = datetime.now().time().strftime(u'[%H:%M:%S]')
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text = msg.message
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if msg.send_failed:
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text = color('white', '(Message skipped because it was too big to fit in '
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'TCP buffer - This is only cosmetic)')
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safe_print(time_ + text)
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has_connects = []
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def on_login():
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try:
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cli.subscribe_logs(on_log, dump_config=not has_connects)
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has_connects.append(True)
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except APIConnectionError:
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cli.disconnect()
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cli.on_disconnect = try_connect
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cli.on_login = on_login
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cli.start()
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try:
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try_connect(is_disconnect=False)
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while True:
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time.sleep(1)
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except KeyboardInterrupt:
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stopping = True
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cli.stop(True)
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while retry_timer:
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retry_timer.pop(0).cancel()
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return 0
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