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mirror of https://github.com/home-assistant/core synced 2024-08-02 23:40:32 +02:00
ha-core/homeassistant/components/tts/__init__.py
2022-05-30 20:41:05 -07:00

716 lines
23 KiB
Python

"""Provide functionality for TTS."""
from __future__ import annotations
import asyncio
import functools as ft
import hashlib
from http import HTTPStatus
import io
import logging
import mimetypes
import os
from pathlib import Path
import re
from typing import TYPE_CHECKING, Optional, cast
from aiohttp import web
import mutagen
from mutagen.id3 import ID3, TextFrame as ID3Text
import voluptuous as vol
import yarl
from homeassistant.components.http import HomeAssistantView
from homeassistant.components.media_player.const import (
ATTR_MEDIA_ANNOUNCE,
ATTR_MEDIA_CONTENT_ID,
ATTR_MEDIA_CONTENT_TYPE,
DOMAIN as DOMAIN_MP,
MEDIA_TYPE_MUSIC,
SERVICE_PLAY_MEDIA,
)
from homeassistant.components.media_source import generate_media_source_id
from homeassistant.const import (
ATTR_ENTITY_ID,
CONF_DESCRIPTION,
CONF_NAME,
CONF_PLATFORM,
PLATFORM_FORMAT,
)
from homeassistant.core import HomeAssistant, ServiceCall, callback
from homeassistant.exceptions import HomeAssistantError
from homeassistant.helpers import config_per_platform, discovery
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.network import get_url
from homeassistant.helpers.service import async_set_service_schema
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from homeassistant.setup import async_prepare_setup_platform
from homeassistant.util.network import normalize_url
from homeassistant.util.yaml import load_yaml
from .const import DOMAIN
# mypy: allow-untyped-defs, no-check-untyped-defs
_LOGGER = logging.getLogger(__name__)
TtsAudioType = tuple[Optional[str], Optional[bytes]]
ATTR_CACHE = "cache"
ATTR_LANGUAGE = "language"
ATTR_MESSAGE = "message"
ATTR_OPTIONS = "options"
ATTR_PLATFORM = "platform"
BASE_URL_KEY = "tts_base_url"
CONF_BASE_URL = "base_url"
CONF_CACHE = "cache"
CONF_CACHE_DIR = "cache_dir"
CONF_LANG = "language"
CONF_SERVICE_NAME = "service_name"
CONF_TIME_MEMORY = "time_memory"
CONF_FIELDS = "fields"
DEFAULT_CACHE = True
DEFAULT_CACHE_DIR = "tts"
DEFAULT_TIME_MEMORY = 300
MEM_CACHE_FILENAME = "filename"
MEM_CACHE_VOICE = "voice"
SERVICE_CLEAR_CACHE = "clear_cache"
SERVICE_SAY = "say"
_RE_VOICE_FILE = re.compile(r"([a-f0-9]{40})_([^_]+)_([^_]+)_([a-z_]+)\.[a-z0-9]{3,4}")
KEY_PATTERN = "{0}_{1}_{2}_{3}"
def _deprecated_platform(value):
"""Validate if platform is deprecated."""
if value == "google":
raise vol.Invalid(
"google tts service has been renamed to google_translate,"
" please update your configuration."
)
return value
def valid_base_url(value: str) -> str:
"""Validate base url, return value."""
url = yarl.URL(cv.url(value))
if url.path != "/":
raise vol.Invalid("Path should be empty")
return normalize_url(value)
PLATFORM_SCHEMA = cv.PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_PLATFORM): vol.All(cv.string, _deprecated_platform),
vol.Optional(CONF_CACHE, default=DEFAULT_CACHE): cv.boolean,
vol.Optional(CONF_CACHE_DIR, default=DEFAULT_CACHE_DIR): cv.string,
vol.Optional(CONF_TIME_MEMORY, default=DEFAULT_TIME_MEMORY): vol.All(
vol.Coerce(int), vol.Range(min=60, max=57600)
),
vol.Optional(CONF_BASE_URL): valid_base_url,
vol.Optional(CONF_SERVICE_NAME): cv.string,
}
)
PLATFORM_SCHEMA_BASE = cv.PLATFORM_SCHEMA_BASE.extend(PLATFORM_SCHEMA.schema)
SCHEMA_SERVICE_SAY = vol.Schema(
{
vol.Required(ATTR_MESSAGE): cv.string,
vol.Optional(ATTR_CACHE): cv.boolean,
vol.Required(ATTR_ENTITY_ID): cv.comp_entity_ids,
vol.Optional(ATTR_LANGUAGE): cv.string,
vol.Optional(ATTR_OPTIONS): dict,
}
)
SCHEMA_SERVICE_CLEAR_CACHE = vol.Schema({})
async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
"""Set up TTS."""
tts = SpeechManager(hass)
try:
conf = config[DOMAIN][0] if config.get(DOMAIN, []) else {}
use_cache = conf.get(CONF_CACHE, DEFAULT_CACHE)
cache_dir = conf.get(CONF_CACHE_DIR, DEFAULT_CACHE_DIR)
time_memory = conf.get(CONF_TIME_MEMORY, DEFAULT_TIME_MEMORY)
base_url = conf.get(CONF_BASE_URL)
if base_url is not None:
_LOGGER.warning(
"TTS base_url option is deprecated. Configure internal/external URL instead"
)
hass.data[BASE_URL_KEY] = base_url
await tts.async_init_cache(use_cache, cache_dir, time_memory, base_url)
except (HomeAssistantError, KeyError):
_LOGGER.exception("Error on cache init")
return False
hass.data[DOMAIN] = tts
hass.http.register_view(TextToSpeechView(tts))
hass.http.register_view(TextToSpeechUrlView(tts))
# Load service descriptions from tts/services.yaml
services_yaml = Path(__file__).parent / "services.yaml"
services_dict = cast(
dict, await hass.async_add_executor_job(load_yaml, str(services_yaml))
)
async def async_setup_platform(
p_type: str,
p_config: ConfigType | None = None,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up a TTS platform."""
if p_config is None:
p_config = {}
platform = await async_prepare_setup_platform(hass, config, DOMAIN, p_type)
if platform is None:
return
try:
if hasattr(platform, "async_get_engine"):
provider = await platform.async_get_engine(
hass, p_config, discovery_info
)
else:
provider = await hass.async_add_executor_job(
platform.get_engine, hass, p_config, discovery_info
)
if provider is None:
_LOGGER.error("Error setting up platform %s", p_type)
return
tts.async_register_engine(p_type, provider, p_config)
except Exception: # pylint: disable=broad-except
_LOGGER.exception("Error setting up platform: %s", p_type)
return
async def async_say_handle(service: ServiceCall) -> None:
"""Service handle for say."""
entity_ids = service.data[ATTR_ENTITY_ID]
message = service.data[ATTR_MESSAGE]
cache = service.data.get(ATTR_CACHE)
language = service.data.get(ATTR_LANGUAGE)
options = service.data.get(ATTR_OPTIONS)
tts.process_options(p_type, language, options)
params = {
"message": message,
}
if cache is not None:
params["cache"] = "true" if cache else "false"
if language is not None:
params["language"] = language
if options is not None:
params.update(options)
await hass.services.async_call(
DOMAIN_MP,
SERVICE_PLAY_MEDIA,
{
ATTR_ENTITY_ID: entity_ids,
ATTR_MEDIA_CONTENT_ID: generate_media_source_id(
DOMAIN,
str(yarl.URL.build(path=p_type, query=params)),
),
ATTR_MEDIA_CONTENT_TYPE: MEDIA_TYPE_MUSIC,
ATTR_MEDIA_ANNOUNCE: True,
},
blocking=True,
context=service.context,
)
service_name = p_config.get(CONF_SERVICE_NAME, f"{p_type}_{SERVICE_SAY}")
hass.services.async_register(
DOMAIN, service_name, async_say_handle, schema=SCHEMA_SERVICE_SAY
)
# Register the service description
service_desc = {
CONF_NAME: f"Say an TTS message with {p_type}",
CONF_DESCRIPTION: f"Say something using text-to-speech on a media player with {p_type}.",
CONF_FIELDS: services_dict[SERVICE_SAY][CONF_FIELDS],
}
async_set_service_schema(hass, DOMAIN, service_name, service_desc)
setup_tasks = [
asyncio.create_task(async_setup_platform(p_type, p_config))
for p_type, p_config in config_per_platform(config, DOMAIN)
if p_type is not None
]
if setup_tasks:
await asyncio.wait(setup_tasks)
async def async_platform_discovered(platform, info):
"""Handle for discovered platform."""
await async_setup_platform(platform, discovery_info=info)
discovery.async_listen_platform(hass, DOMAIN, async_platform_discovered)
async def async_clear_cache_handle(service: ServiceCall) -> None:
"""Handle clear cache service call."""
await tts.async_clear_cache()
hass.services.async_register(
DOMAIN,
SERVICE_CLEAR_CACHE,
async_clear_cache_handle,
schema=SCHEMA_SERVICE_CLEAR_CACHE,
)
return True
def _hash_options(options: dict) -> str:
"""Hashes an options dictionary."""
opts_hash = hashlib.blake2s(digest_size=5)
for key, value in sorted(options.items()):
opts_hash.update(str(key).encode())
opts_hash.update(str(value).encode())
return opts_hash.hexdigest()
class SpeechManager:
"""Representation of a speech store."""
def __init__(self, hass: HomeAssistant) -> None:
"""Initialize a speech store."""
self.hass = hass
self.providers: dict[str, Provider] = {}
self.use_cache = DEFAULT_CACHE
self.cache_dir = DEFAULT_CACHE_DIR
self.time_memory = DEFAULT_TIME_MEMORY
self.base_url: str | None = None
self.file_cache: dict[str, str] = {}
self.mem_cache: dict[str, dict[str, str | bytes]] = {}
async def async_init_cache(
self, use_cache: bool, cache_dir: str, time_memory: int, base_url: str | None
) -> None:
"""Init config folder and load file cache."""
self.use_cache = use_cache
self.time_memory = time_memory
self.base_url = base_url
try:
self.cache_dir = await self.hass.async_add_executor_job(
_init_tts_cache_dir, self.hass, cache_dir
)
except OSError as err:
raise HomeAssistantError(f"Can't init cache dir {err}") from err
try:
cache_files = await self.hass.async_add_executor_job(
_get_cache_files, self.cache_dir
)
except OSError as err:
raise HomeAssistantError(f"Can't read cache dir {err}") from err
if cache_files:
self.file_cache.update(cache_files)
async def async_clear_cache(self) -> None:
"""Read file cache and delete files."""
self.mem_cache = {}
def remove_files():
"""Remove files from filesystem."""
for filename in self.file_cache.values():
try:
os.remove(os.path.join(self.cache_dir, filename))
except OSError as err:
_LOGGER.warning("Can't remove cache file '%s': %s", filename, err)
await self.hass.async_add_executor_job(remove_files)
self.file_cache = {}
@callback
def async_register_engine(
self, engine: str, provider: Provider, config: ConfigType
) -> None:
"""Register a TTS provider."""
provider.hass = self.hass
if provider.name is None:
provider.name = engine
self.providers[engine] = provider
self.hass.config.components.add(
PLATFORM_FORMAT.format(domain=engine, platform=DOMAIN)
)
@callback
def process_options(
self,
engine: str,
language: str | None = None,
options: dict | None = None,
) -> tuple[str, dict | None]:
"""Validate and process options."""
if (provider := self.providers.get(engine)) is None:
raise HomeAssistantError(f"Provider {engine} not found")
# Languages
language = language or provider.default_language
if language is None or language not in provider.supported_languages:
raise HomeAssistantError(f"Not supported language {language}")
# Options
if provider.default_options and options:
merged_options = provider.default_options.copy()
merged_options.update(options)
options = merged_options
options = options or provider.default_options
if options is not None:
invalid_opts = [
opt_name
for opt_name in options.keys()
if opt_name not in (provider.supported_options or [])
]
if invalid_opts:
raise HomeAssistantError(f"Invalid options found: {invalid_opts}")
return language, options
async def async_get_url_path(
self,
engine: str,
message: str,
cache: bool | None = None,
language: str | None = None,
options: dict | None = None,
) -> str:
"""Get URL for play message.
This method is a coroutine.
"""
language, options = self.process_options(engine, language, options)
options_key = _hash_options(options) if options else "-"
msg_hash = hashlib.sha1(bytes(message, "utf-8")).hexdigest()
use_cache = cache if cache is not None else self.use_cache
key = KEY_PATTERN.format(
msg_hash, language.replace("_", "-"), options_key, engine
).lower()
# Is speech already in memory
if key in self.mem_cache:
filename = cast(str, self.mem_cache[key][MEM_CACHE_FILENAME])
# Is file store in file cache
elif use_cache and key in self.file_cache:
filename = self.file_cache[key]
self.hass.async_create_task(self.async_file_to_mem(key))
# Load speech from provider into memory
else:
filename = await self.async_get_tts_audio(
engine, key, message, use_cache, language, options
)
return f"/api/tts_proxy/{filename}"
async def async_get_tts_audio(
self,
engine: str,
key: str,
message: str,
cache: bool,
language: str,
options: dict | None,
) -> str:
"""Receive TTS and store for view in cache.
This method is a coroutine.
"""
provider = self.providers[engine]
extension, data = await provider.async_get_tts_audio(message, language, options)
if data is None or extension is None:
raise HomeAssistantError(f"No TTS from {engine} for '{message}'")
# Create file infos
filename = f"{key}.{extension}".lower()
# Validate filename
if not _RE_VOICE_FILE.match(filename):
raise HomeAssistantError(
f"TTS filename '{filename}' from {engine} is invalid!"
)
# Save to memory
data = self.write_tags(filename, data, provider, message, language, options)
self._async_store_to_memcache(key, filename, data)
if cache:
self.hass.async_create_task(self.async_save_tts_audio(key, filename, data))
return filename
async def async_save_tts_audio(self, key: str, filename: str, data: bytes) -> None:
"""Store voice data to file and file_cache.
This method is a coroutine.
"""
voice_file = os.path.join(self.cache_dir, filename)
def save_speech() -> None:
"""Store speech to filesystem."""
with open(voice_file, "wb") as speech:
speech.write(data)
try:
await self.hass.async_add_executor_job(save_speech)
self.file_cache[key] = filename
except OSError as err:
_LOGGER.error("Can't write %s: %s", filename, err)
async def async_file_to_mem(self, key: str) -> None:
"""Load voice from file cache into memory.
This method is a coroutine.
"""
if not (filename := self.file_cache.get(key)):
raise HomeAssistantError(f"Key {key} not in file cache!")
voice_file = os.path.join(self.cache_dir, filename)
def load_speech() -> bytes:
"""Load a speech from filesystem."""
with open(voice_file, "rb") as speech:
return speech.read()
try:
data = await self.hass.async_add_executor_job(load_speech)
except OSError as err:
del self.file_cache[key]
raise HomeAssistantError(f"Can't read {voice_file}") from err
self._async_store_to_memcache(key, filename, data)
@callback
def _async_store_to_memcache(self, key: str, filename: str, data: bytes) -> None:
"""Store data to memcache and set timer to remove it."""
self.mem_cache[key] = {MEM_CACHE_FILENAME: filename, MEM_CACHE_VOICE: data}
@callback
def async_remove_from_mem() -> None:
"""Cleanup memcache."""
self.mem_cache.pop(key, None)
self.hass.loop.call_later(self.time_memory, async_remove_from_mem)
async def async_read_tts(self, filename: str) -> tuple[str | None, bytes]:
"""Read a voice file and return binary.
This method is a coroutine.
"""
if not (record := _RE_VOICE_FILE.match(filename.lower())):
raise HomeAssistantError("Wrong tts file format!")
key = KEY_PATTERN.format(
record.group(1), record.group(2), record.group(3), record.group(4)
)
if key not in self.mem_cache:
if key not in self.file_cache:
raise HomeAssistantError(f"{key} not in cache!")
await self.async_file_to_mem(key)
content, _ = mimetypes.guess_type(filename)
return content, cast(bytes, self.mem_cache[key][MEM_CACHE_VOICE])
@staticmethod
def write_tags(
filename: str,
data: bytes,
provider: Provider,
message: str,
language: str,
options: dict | None,
) -> bytes:
"""Write ID3 tags to file.
Async friendly.
"""
data_bytes = io.BytesIO(data)
data_bytes.name = filename
data_bytes.seek(0)
album = provider.name
artist = language
if options is not None and (voice := options.get("voice")) is not None:
artist = voice
try:
tts_file = mutagen.File(data_bytes)
if tts_file is not None:
if not tts_file.tags:
tts_file.add_tags()
if isinstance(tts_file.tags, ID3):
tts_file["artist"] = ID3Text(encoding=3, text=artist)
tts_file["album"] = ID3Text(encoding=3, text=album)
tts_file["title"] = ID3Text(encoding=3, text=message)
else:
tts_file["artist"] = artist
tts_file["album"] = album
tts_file["title"] = message
tts_file.save(data_bytes)
except mutagen.MutagenError as err:
_LOGGER.error("ID3 tag error: %s", err)
return data_bytes.getvalue()
class Provider:
"""Represent a single TTS provider."""
hass: HomeAssistant | None = None
name: str | None = None
@property
def default_language(self):
"""Return the default language."""
return None
@property
def supported_languages(self):
"""Return a list of supported languages."""
return None
@property
def supported_options(self):
"""Return a list of supported options like voice, emotionen."""
return None
@property
def default_options(self):
"""Return a dict include default options."""
return None
def get_tts_audio(
self, message: str, language: str, options: dict | None = None
) -> TtsAudioType:
"""Load tts audio file from provider."""
raise NotImplementedError()
async def async_get_tts_audio(
self, message: str, language: str, options: dict | None = None
) -> TtsAudioType:
"""Load tts audio file from provider.
Return a tuple of file extension and data as bytes.
"""
if TYPE_CHECKING:
assert self.hass
return await self.hass.async_add_executor_job(
ft.partial(self.get_tts_audio, message, language, options=options)
)
def _init_tts_cache_dir(hass: HomeAssistant, cache_dir: str) -> str:
"""Init cache folder."""
if not os.path.isabs(cache_dir):
cache_dir = hass.config.path(cache_dir)
if not os.path.isdir(cache_dir):
_LOGGER.info("Create cache dir %s", cache_dir)
os.mkdir(cache_dir)
return cache_dir
def _get_cache_files(cache_dir: str) -> dict[str, str]:
"""Return a dict of given engine files."""
cache = {}
folder_data = os.listdir(cache_dir)
for file_data in folder_data:
if record := _RE_VOICE_FILE.match(file_data):
key = KEY_PATTERN.format(
record.group(1), record.group(2), record.group(3), record.group(4)
)
cache[key.lower()] = file_data.lower()
return cache
class TextToSpeechUrlView(HomeAssistantView):
"""TTS view to get a url to a generated speech file."""
requires_auth = True
url = "/api/tts_get_url"
name = "api:tts:geturl"
def __init__(self, tts: SpeechManager) -> None:
"""Initialize a tts view."""
self.tts = tts
async def post(self, request: web.Request) -> web.Response:
"""Generate speech and provide url."""
try:
data = await request.json()
except ValueError:
return self.json_message("Invalid JSON specified", HTTPStatus.BAD_REQUEST)
if not data.get(ATTR_PLATFORM) and data.get(ATTR_MESSAGE):
return self.json_message(
"Must specify platform and message", HTTPStatus.BAD_REQUEST
)
p_type = data[ATTR_PLATFORM]
message = data[ATTR_MESSAGE]
cache = data.get(ATTR_CACHE)
language = data.get(ATTR_LANGUAGE)
options = data.get(ATTR_OPTIONS)
try:
path = await self.tts.async_get_url_path(
p_type, message, cache=cache, language=language, options=options
)
except HomeAssistantError as err:
_LOGGER.error("Error on init tts: %s", err)
return self.json({"error": err}, HTTPStatus.BAD_REQUEST)
base = self.tts.base_url or get_url(self.tts.hass)
url = base + path
return self.json({"url": url, "path": path})
class TextToSpeechView(HomeAssistantView):
"""TTS view to serve a speech audio."""
requires_auth = False
url = "/api/tts_proxy/{filename}"
name = "api:tts_speech"
def __init__(self, tts: SpeechManager) -> None:
"""Initialize a tts view."""
self.tts = tts
async def get(self, request: web.Request, filename: str) -> web.Response:
"""Start a get request."""
try:
content, data = await self.tts.async_read_tts(filename)
except HomeAssistantError as err:
_LOGGER.error("Error on load tts: %s", err)
return web.Response(status=HTTPStatus.NOT_FOUND)
return web.Response(body=data, content_type=content)
def get_base_url(hass: HomeAssistant) -> str:
"""Get base URL."""
return hass.data[BASE_URL_KEY] or get_url(hass)