607 lines
25 KiB
Python
607 lines
25 KiB
Python
"""Voice satellite protocol."""
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import asyncio
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import hashlib
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import logging
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import posixpath
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import shutil
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import time
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from collections.abc import Iterable
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from typing import Dict, List, Optional, Set, Union
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from urllib.parse import urlparse, urlunparse
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from urllib.request import urlopen
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# pylint: disable=no-name-in-module
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from aioesphomeapi.api_pb2 import ( # type: ignore[attr-defined]
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AuthenticationRequest,
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DeviceInfoRequest,
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DeviceInfoResponse,
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ListEntitiesDoneResponse,
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ListEntitiesRequest,
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MediaPlayerCommandRequest,
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SubscribeHomeAssistantStatesRequest,
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SwitchCommandRequest,
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VoiceAssistantAnnounceFinished,
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VoiceAssistantAnnounceRequest,
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VoiceAssistantAudio,
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VoiceAssistantConfigurationRequest,
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VoiceAssistantConfigurationResponse,
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VoiceAssistantEventResponse,
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VoiceAssistantExternalWakeWord,
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VoiceAssistantRequest,
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VoiceAssistantSetConfiguration,
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VoiceAssistantTimerEventResponse,
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VoiceAssistantWakeWord,
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)
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from aioesphomeapi.core import MESSAGE_TYPE_TO_PROTO
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from aioesphomeapi.model import (
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VoiceAssistantEventType,
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VoiceAssistantFeature,
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VoiceAssistantTimerEventType,
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)
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from google.protobuf import message
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from pymicro_wakeword import MicroWakeWord
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from pyopen_wakeword import OpenWakeWord
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from .api_server import APIServer
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from .entity import MediaPlayerEntity, MuteSwitchEntity, ThinkingSoundEntity
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from .models import AvailableWakeWord, ServerState, WakeWordType
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from .util import call_all
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_LOGGER = logging.getLogger(__name__)
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PROTO_TO_MESSAGE_TYPE = {v: k for k, v in MESSAGE_TYPE_TO_PROTO.items()}
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class VoiceSatelliteProtocol(APIServer):
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def __init__(self, state: ServerState) -> None:
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super().__init__(state.name)
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self.state = state
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self.state.satellite = self
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self.state.connected = False
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existing_media_players = [entity for entity in self.state.entities if isinstance(entity, MediaPlayerEntity)]
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if existing_media_players:
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# Keep the first instance and remove any extras.
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self.state.media_player_entity = existing_media_players[0]
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for extra in existing_media_players[1:]:
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self.state.entities.remove(extra)
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existing_mute_switches = [entity for entity in self.state.entities if isinstance(entity, MuteSwitchEntity)]
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if existing_mute_switches:
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self.state.mute_switch_entity = existing_mute_switches[0] # type: ignore
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for extra in existing_mute_switches[1:]: # type: ignore
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self.state.entities.remove(extra)
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if self.state.media_player_entity is None:
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self.state.media_player_entity = MediaPlayerEntity(
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server=self,
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key=len(state.entities),
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name="Media Player",
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object_id="linux_voice_assistant_media_player",
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music_player=state.music_player,
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announce_player=state.tts_player,
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initial_volume=state.volume,
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)
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self.state.entities.append(self.state.media_player_entity)
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elif self.state.media_player_entity not in self.state.entities:
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self.state.entities.append(self.state.media_player_entity)
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self.state.media_player_entity.server = self
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self.state.media_player_entity.volume = state.volume
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self.state.media_player_entity.previous_volume = state.volume
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# Add/update mute switch entity (like ESPHome Voice PE)
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mute_switch = self.state.mute_switch_entity
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if mute_switch is None:
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mute_switch = MuteSwitchEntity(
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server=self,
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key=len(state.entities),
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name="Mute",
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object_id="mute",
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get_muted=lambda: self.state.muted,
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set_muted=self._set_muted,
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)
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self.state.entities.append(mute_switch)
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self.state.mute_switch_entity = mute_switch
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elif mute_switch not in self.state.entities:
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self.state.entities.append(mute_switch)
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mute_switch.server = self
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mute_switch.update_get_muted(lambda: self.state.muted)
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mute_switch.update_set_muted(self._set_muted)
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mute_switch.sync_with_state()
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existing_thinking_sound_switches = [entity for entity in self.state.entities if isinstance(entity, ThinkingSoundEntity)]
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if existing_thinking_sound_switches:
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self.state.thinking_sound_entity = existing_thinking_sound_switches[0] # type: ignore
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for extra in existing_thinking_sound_switches[1:]: # type: ignore
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self.state.entities.remove(extra)
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# Add/update thinking sound entity
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thinking_sound_switch = self.state.thinking_sound_entity
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if thinking_sound_switch is None:
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thinking_sound_switch = ThinkingSoundEntity(
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server=self,
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key=len(state.entities),
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name="Thinking Sound",
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object_id="thinking_sound",
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get_thinking_sound_enabled=lambda: self.state.thinking_sound_enabled,
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set_thinking_sound_enabled=self._set_thinking_sound_enabled,
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)
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self.state.entities.append(thinking_sound_switch)
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self.state.thinking_sound_entity = thinking_sound_switch
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elif thinking_sound_switch not in self.state.entities:
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self.state.entities.append(thinking_sound_switch)
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# Load thinking sound enabled state from preferences (default to False if not set or unknown)
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if hasattr(self.state.preferences, "thinking_sound") and self.state.preferences.thinking_sound in (0, 1):
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self.state.thinking_sound_enabled = bool(self.state.preferences.thinking_sound)
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else:
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self.state.thinking_sound_enabled = False
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thinking_sound_switch.server = self
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thinking_sound_switch.update_get_thinking_sound_enabled(lambda: self.state.thinking_sound_enabled)
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thinking_sound_switch.update_set_thinking_sound_enabled(self._set_thinking_sound_enabled)
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thinking_sound_switch.sync_with_state()
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self._is_streaming_audio = False
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self._tts_url: Optional[str] = None
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self._tts_played = False
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self._continue_conversation = False
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self._timer_finished = False
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self._timer_ring_start: Optional[float] = None
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self._processing = False
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self._pipeline_active = False
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self._external_wake_words: Dict[str, VoiceAssistantExternalWakeWord] = {}
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self._disconnect_event = asyncio.Event()
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def _set_thinking_sound_enabled(self, new_state: bool) -> None:
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self.state.thinking_sound_enabled = bool(new_state)
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self.state.preferences.thinking_sound = 1 if self.state.thinking_sound_enabled else 0
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if self.state.thinking_sound_enabled:
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_LOGGER.debug("Thinking sound enabled")
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else:
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_LOGGER.debug("Thinking sound disabled")
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pass
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self.state.save_preferences()
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def _set_muted(self, new_state: bool) -> None:
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self.state.muted = bool(new_state)
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if self.state.muted:
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# voice_assistant.stop behavior
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_LOGGER.debug("Muting voice assistant (voice_assistant.stop)")
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self._is_streaming_audio = False
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self.state.tts_player.stop()
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# Stop any ongoing voice processing
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self.state.stop_word.is_active = False # type: ignore
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self.state.tts_player.play(self.state.mute_sound)
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else:
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# voice_assistant.start_continuous behavior
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_LOGGER.debug("Unmuting voice assistant (voice_assistant.start_continuous)")
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self.state.tts_player.play(self.state.unmute_sound)
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# Resume normal operation - wake word detection will be active again
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pass
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def handle_voice_event(self, event_type: VoiceAssistantEventType, data: Dict[str, str]) -> None:
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_LOGGER.debug("Voice event: type=%s, data=%s", event_type.name, data)
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if event_type == VoiceAssistantEventType.VOICE_ASSISTANT_RUN_START:
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self._tts_url = data.get("url")
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self._tts_played = False
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self._continue_conversation = False
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self._pipeline_active = True
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_INTENT_START and self.state.thinking_sound_enabled:
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# Play short "thinking/processing" sound if configured
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processing = getattr(self.state, "processing_sound", None)
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if processing:
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_LOGGER.debug("Playing processing sound: %s", processing)
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self.state.stop_word.is_active = True # type: ignore
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self._processing = True
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self.duck()
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self.state.tts_player.play(self.state.processing_sound)
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elif event_type in (
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VoiceAssistantEventType.VOICE_ASSISTANT_STT_VAD_END,
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VoiceAssistantEventType.VOICE_ASSISTANT_STT_END,
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):
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self._is_streaming_audio = False
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_INTENT_PROGRESS:
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if data.get("tts_start_streaming") == "1":
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# Start streaming early
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self.play_tts()
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_INTENT_END:
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if data.get("continue_conversation") == "1":
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self._continue_conversation = True
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_TTS_END:
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self._tts_url = data.get("url")
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self.play_tts()
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elif event_type == VoiceAssistantEventType.VOICE_ASSISTANT_RUN_END:
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self._is_streaming_audio = False
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if not self._tts_played:
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self._pipeline_active = False
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self._tts_finished()
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# When TTS is playing, keep _pipeline_active = True to block
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# false wake word detections from speaker audio feedback.
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# _tts_finished() callback will clear it when playback ends.
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self._tts_played = False
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# TODO: handle error
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def handle_timer_event(
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self,
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event_type: VoiceAssistantTimerEventType,
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msg: VoiceAssistantTimerEventResponse,
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) -> None:
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_LOGGER.debug("Timer event: type=%s", event_type.name)
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if event_type == VoiceAssistantTimerEventType.VOICE_ASSISTANT_TIMER_FINISHED:
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if not self._timer_finished:
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self.state.active_wake_words.add(self.state.stop_word.id)
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self._timer_finished = True
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self._timer_ring_start = time.monotonic()
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self.duck()
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self._play_timer_finished()
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def handle_message(self, msg: message.Message) -> Iterable[message.Message]:
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if isinstance(msg, VoiceAssistantEventResponse):
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# Pipeline event
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data: Dict[str, str] = {}
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for arg in msg.data:
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data[arg.name] = arg.value
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self.handle_voice_event(VoiceAssistantEventType(msg.event_type), data)
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# assist_satellite.announce HERE
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elif isinstance(msg, VoiceAssistantAnnounceRequest):
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_LOGGER.debug("Announcing: %s", msg.text)
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assert self.state.media_player_entity is not None
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urls = []
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if msg.preannounce_media_id:
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urls.append(msg.preannounce_media_id)
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urls.append(msg.media_id)
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self.state.active_wake_words.add(self.state.stop_word.id)
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self._continue_conversation = msg.start_conversation
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self.duck()
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self.state.tts_player.play(urls, done_callback=self._tts_finished)
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elif isinstance(msg, VoiceAssistantTimerEventResponse):
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self.handle_timer_event(VoiceAssistantTimerEventType(msg.event_type), msg)
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elif isinstance(msg, DeviceInfoRequest):
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_LOGGER.debug("Device info request")
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yield DeviceInfoResponse(
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uses_password=False,
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name=self.state.name,
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friendly_name=self.state.friendly_name,
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project_name="Open Home Foundation.Linux Voice Assistant",
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project_version=self.state.version,
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esphome_version=self.state.esphome_version,
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mac_address=self.state.mac_address,
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manufacturer="Open Home Foundation",
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model="Linux Voice Assistant",
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voice_assistant_feature_flags=(
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VoiceAssistantFeature.VOICE_ASSISTANT | VoiceAssistantFeature.API_AUDIO | VoiceAssistantFeature.ANNOUNCE | VoiceAssistantFeature.START_CONVERSATION | VoiceAssistantFeature.TIMERS
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),
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)
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elif isinstance(
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msg,
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(
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ListEntitiesRequest,
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SubscribeHomeAssistantStatesRequest,
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MediaPlayerCommandRequest,
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SwitchCommandRequest,
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),
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):
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for entity in self.state.entities:
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yield from entity.handle_message(msg)
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if isinstance(msg, ListEntitiesRequest):
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yield ListEntitiesDoneResponse()
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elif isinstance(msg, VoiceAssistantConfigurationRequest):
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available_wake_words = [
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VoiceAssistantWakeWord(
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id=ww.id,
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wake_word=ww.wake_word,
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trained_languages=ww.trained_languages,
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)
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for ww in self.state.available_wake_words.values()
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]
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for eww in msg.external_wake_words:
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if eww.model_type != "micro":
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continue
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available_wake_words.append(
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VoiceAssistantWakeWord(
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id=eww.id,
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wake_word=eww.wake_word,
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trained_languages=eww.trained_languages,
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)
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)
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self._external_wake_words[eww.id] = eww
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yield VoiceAssistantConfigurationResponse(
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available_wake_words=available_wake_words,
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active_wake_words=[ww.id for ww in self.state.wake_words.values() if ww.id in self.state.active_wake_words],
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max_active_wake_words=2,
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)
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_LOGGER.info("Connected to Home Assistant")
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elif isinstance(msg, VoiceAssistantSetConfiguration):
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# Change active wake words
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active_wake_words: Set[str] = set()
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for wake_word_id in msg.active_wake_words:
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if wake_word_id in self.state.wake_words:
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# Already active
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active_wake_words.add(wake_word_id)
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continue
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model_info = self.state.available_wake_words.get(wake_word_id)
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if not model_info:
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# Check external wake words (may require download)
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external_wake_word = self._external_wake_words.get(wake_word_id)
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if not external_wake_word:
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continue
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model_info = self._download_external_wake_word(external_wake_word)
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if not model_info:
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continue
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self.state.available_wake_words[wake_word_id] = model_info
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_LOGGER.debug("Loading wake word: %s", model_info.wake_word_path)
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self.state.wake_words[wake_word_id] = model_info.load()
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_LOGGER.info("Wake word set: %s", wake_word_id)
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active_wake_words.add(wake_word_id)
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break
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self.state.active_wake_words = active_wake_words
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_LOGGER.debug("Active wake words: %s", active_wake_words)
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self.state.preferences.active_wake_words = list(active_wake_words)
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self.state.save_preferences()
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self.state.wake_words_changed = True
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def handle_audio(self, audio_chunk: bytes) -> None:
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if not self._is_streaming_audio or self.state.muted:
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return
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self.send_messages([VoiceAssistantAudio(data=audio_chunk)])
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def wakeup(self, wake_word: Union[MicroWakeWord, OpenWakeWord]) -> None:
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if self._timer_finished:
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# Stop timer instead
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self._timer_finished = False
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self.unduck()
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self.state.tts_player.stop()
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_LOGGER.debug("Stopping timer finished sound")
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return
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if self.state.muted:
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# Don't respond to wake words when muted (voice_assistant.stop behavior)
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return
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if self._pipeline_active:
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_LOGGER.debug("Ignoring wake word - pipeline already active")
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return
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wake_word_phrase = wake_word.wake_word # type: ignore
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_LOGGER.debug("Detected wake word: %s", wake_word_phrase)
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self._pipeline_active = True
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self.duck()
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self.state.tts_player.play(
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self.state.wakeup_sound,
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done_callback=lambda: self._on_wakeup_sound_finished(wake_word_phrase),
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)
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def _on_wakeup_sound_finished(self, wake_word_phrase: str) -> None:
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"""Callback invoked when the wakeup sound finishes playing."""
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_LOGGER.debug("Wakeup sound finished, starting audio streaming with wake word: %s", wake_word_phrase)
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self.send_messages(
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[VoiceAssistantRequest(start=True, wake_word_phrase=wake_word_phrase)],
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)
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self._is_streaming_audio = True
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def stop(self) -> None:
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self.state.active_wake_words.discard(self.state.stop_word.id)
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self._pipeline_active = False
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if self._timer_finished:
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self._timer_finished = False
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self._timer_ring_start = None
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self.unduck()
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self.state.tts_player.stop()
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_LOGGER.debug("Stopping timer finished sound")
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else:
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# tts_player.stop() invokes the done_callback (_tts_finished),
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# so we don't call _tts_finished() again explicitly.
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self.state.tts_player.stop()
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_LOGGER.debug("TTS response stopped manually")
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def play_tts(self) -> None:
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if (not self._tts_url) or self._tts_played:
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return
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self._tts_played = True
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_LOGGER.debug("Playing TTS response: %s", self._tts_url)
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self.state.active_wake_words.add(self.state.stop_word.id)
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self.state.tts_player.play(self._tts_url, done_callback=self._tts_finished)
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def duck(self) -> None:
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_LOGGER.debug("Ducking music")
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self.state.music_player.duck()
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def unduck(self) -> None:
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_LOGGER.debug("Unducking music")
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self.state.music_player.unduck()
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def _tts_finished(self) -> None:
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self._pipeline_active = False
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self.state.active_wake_words.discard(self.state.stop_word.id)
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self.send_messages([VoiceAssistantAnnounceFinished()])
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if self._continue_conversation:
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self.send_messages([VoiceAssistantRequest(start=True)])
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self._is_streaming_audio = True
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self._pipeline_active = True
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_LOGGER.debug("Continuing conversation")
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else:
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self.unduck()
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_LOGGER.debug("TTS response finished")
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def _play_timer_finished(self) -> None:
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if not self._timer_finished:
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_LOGGER.debug("Timer finished sound stopped")
|
|
self.unduck()
|
|
self._timer_ring_start = None
|
|
return
|
|
|
|
# Auto-stop after timer_max_ring_seconds
|
|
if self._timer_ring_start is not None:
|
|
elapsed = time.monotonic() - self._timer_ring_start
|
|
if elapsed >= self.state.timer_max_ring_seconds:
|
|
_LOGGER.info(
|
|
"Timer auto-stopped after %.0f seconds (max=%.0f)",
|
|
elapsed,
|
|
self.state.timer_max_ring_seconds,
|
|
)
|
|
self._timer_finished = False
|
|
self._timer_ring_start = None
|
|
self.state.active_wake_words.discard(self.state.stop_word.id)
|
|
self.unduck()
|
|
return
|
|
|
|
self.state.tts_player.play(
|
|
self.state.timer_finished_sound,
|
|
done_callback=lambda: call_all(
|
|
lambda: time.sleep(1.0),
|
|
self._play_timer_finished,
|
|
),
|
|
)
|
|
|
|
def connection_lost(self, exc):
|
|
super().connection_lost(exc)
|
|
|
|
self._disconnect_event.set()
|
|
self._is_streaming_audio = False
|
|
self._tts_url = None
|
|
self._tts_played = False
|
|
self._continue_conversation = False
|
|
self._timer_finished = False
|
|
self._pipeline_active = False
|
|
|
|
# Stop any ongoing audio playback and wake/stop word processing.
|
|
try:
|
|
self.state.music_player.stop()
|
|
except Exception: # pragma: no cover - defensive safety net
|
|
_LOGGER.exception("Failed to stop music player during disconnect")
|
|
|
|
try:
|
|
self.state.tts_player.stop()
|
|
except Exception: # pragma: no cover - defensive safety net
|
|
_LOGGER.exception("Failed to stop TTS player during disconnect")
|
|
|
|
self.state.stop_word.is_active = False
|
|
self.state.connected = False
|
|
if self.state.satellite is self:
|
|
self.state.satellite = None
|
|
|
|
if self.state.mute_switch_entity is not None:
|
|
self.state.mute_switch_entity.sync_with_state()
|
|
|
|
_LOGGER.info("Disconnected from Home Assistant; waiting for reconnection")
|
|
|
|
def process_packet(self, msg_type: int, packet_data: bytes) -> None:
|
|
super().process_packet(msg_type, packet_data)
|
|
|
|
if msg_type == PROTO_TO_MESSAGE_TYPE[AuthenticationRequest]:
|
|
self.state.connected = True
|
|
_LOGGER.debug("Authentication successful, connected to Home Assistant")
|
|
# Send states after connect
|
|
states: List[message.Message] = []
|
|
_LOGGER.debug("Found %d entities in state", len(self.state.entities))
|
|
for i, entity in enumerate(self.state.entities):
|
|
entity_states = list(entity.handle_message(SubscribeHomeAssistantStatesRequest()))
|
|
states.extend(entity_states)
|
|
_LOGGER.debug("Entity %d (%s) returned %d state messages", i, type(entity).__name__, len(entity_states))
|
|
_LOGGER.debug("Total state messages to send: %d", len(states))
|
|
self.send_messages(states)
|
|
for i, msg in enumerate(states):
|
|
_LOGGER.debug("Sent state message %d: %s", i, type(msg).__name__)
|
|
_LOGGER.debug("All entity states sent after connect")
|
|
|
|
def _download_external_wake_word(self, external_wake_word: VoiceAssistantExternalWakeWord) -> Optional[AvailableWakeWord]:
|
|
eww_dir = self.state.download_dir / "external_wake_words"
|
|
eww_dir.mkdir(parents=True, exist_ok=True)
|
|
|
|
config_path = eww_dir / f"{external_wake_word.id}.json"
|
|
should_download_config = not config_path.exists()
|
|
|
|
# Check if we need to download the model file
|
|
model_path = eww_dir / f"{external_wake_word.id}.tflite"
|
|
should_download_model = True
|
|
if model_path.exists():
|
|
model_size = model_path.stat().st_size
|
|
if model_size == external_wake_word.model_size:
|
|
with open(model_path, "rb") as model_file:
|
|
model_hash = hashlib.sha256(model_file.read()).hexdigest()
|
|
|
|
if model_hash == external_wake_word.model_hash:
|
|
should_download_model = False
|
|
_LOGGER.debug(
|
|
"Model size and hash match for %s. Skipping download.",
|
|
external_wake_word.id,
|
|
)
|
|
|
|
if should_download_config or should_download_model:
|
|
# Download config
|
|
_LOGGER.debug("Downloading %s to %s", external_wake_word.url, config_path)
|
|
with urlopen(external_wake_word.url) as request:
|
|
if request.status != 200:
|
|
_LOGGER.warning(
|
|
"Failed to download: %s, status=%s",
|
|
external_wake_word.url,
|
|
request.status,
|
|
)
|
|
return None
|
|
|
|
with open(config_path, "wb") as model_file:
|
|
shutil.copyfileobj(request, model_file)
|
|
|
|
if should_download_model:
|
|
# Download model file
|
|
parsed_url = urlparse(external_wake_word.url)
|
|
parsed_url = parsed_url._replace(
|
|
path=posixpath.join(posixpath.dirname(parsed_url.path), model_path.name),
|
|
)
|
|
model_url = urlunparse(parsed_url)
|
|
|
|
_LOGGER.debug("Downloading %s to %s", model_url, model_path)
|
|
with urlopen(model_url) as request:
|
|
if request.status != 200:
|
|
_LOGGER.warning("Failed to download: %s, status=%s", model_url, request.status)
|
|
return None
|
|
|
|
with open(model_path, "wb") as model_file:
|
|
shutil.copyfileobj(request, model_file)
|
|
|
|
return AvailableWakeWord(
|
|
id=external_wake_word.id,
|
|
type=WakeWordType.MICRO_WAKE_WORD,
|
|
wake_word=external_wake_word.wake_word,
|
|
trained_languages=external_wake_word.trained_languages,
|
|
wake_word_path=config_path,
|
|
)
|