181 lines
4.3 KiB
Python
181 lines
4.3 KiB
Python
"""Support for the Google speech service."""
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import asyncio
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import logging
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import re
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import aiohttp
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from aiohttp.hdrs import REFERER, USER_AGENT
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import async_timeout
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from gtts_token import gtts_token
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import voluptuous as vol
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from homeassistant.components.tts import CONF_LANG, PLATFORM_SCHEMA, Provider
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from homeassistant.const import HTTP_OK
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from homeassistant.helpers.aiohttp_client import async_get_clientsession
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_LOGGER = logging.getLogger(__name__)
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GOOGLE_SPEECH_URL = "https://translate.google.com/translate_tts"
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MESSAGE_SIZE = 148
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SUPPORT_LANGUAGES = [
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"af",
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"sq",
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"ar",
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"hy",
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"bn",
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"ca",
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"zh",
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"zh-cn",
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"zh-tw",
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"zh-yue",
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"hr",
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"cs",
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"da",
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"nl",
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"en",
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"en-au",
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"en-uk",
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"en-us",
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"eo",
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"fi",
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"fr",
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"de",
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"el",
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"hi",
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"hu",
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"is",
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"id",
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"it",
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"ja",
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"ko",
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"la",
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"lv",
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"mk",
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"no",
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"pl",
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"pt",
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"pt-br",
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"ro",
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"ru",
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"sr",
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"sk",
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"es",
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"es-es",
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"es-mx",
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"es-us",
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"sw",
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"sv",
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"ta",
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"th",
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"tr",
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"vi",
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"cy",
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"uk",
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"bg-BG",
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]
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DEFAULT_LANG = "en"
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{vol.Optional(CONF_LANG, default=DEFAULT_LANG): vol.In(SUPPORT_LANGUAGES)}
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)
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async def async_get_engine(hass, config, discovery_info=None):
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"""Set up Google speech component."""
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return GoogleProvider(hass, config[CONF_LANG])
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class GoogleProvider(Provider):
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"""The Google speech API provider."""
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def __init__(self, hass, lang):
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"""Init Google TTS service."""
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self.hass = hass
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self._lang = lang
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self.headers = {
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REFERER: "http://translate.google.com/",
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USER_AGENT: (
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"Mozilla/5.0 (Windows NT 10.0; WOW64) "
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"AppleWebKit/537.36 (KHTML, like Gecko) "
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"Chrome/47.0.2526.106 Safari/537.36"
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),
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}
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self.name = "Google"
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@property
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def default_language(self):
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"""Return the default language."""
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return self._lang
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@property
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def supported_languages(self):
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"""Return list of supported languages."""
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return SUPPORT_LANGUAGES
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async def async_get_tts_audio(self, message, language, options=None):
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"""Load TTS from google."""
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token = gtts_token.Token()
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websession = async_get_clientsession(self.hass)
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message_parts = self._split_message_to_parts(message)
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data = b""
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for idx, part in enumerate(message_parts):
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part_token = await self.hass.async_add_job(token.calculate_token, part)
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url_param = {
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"ie": "UTF-8",
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"tl": language,
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"q": part,
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"tk": part_token,
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"total": len(message_parts),
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"idx": idx,
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"client": "tw-ob",
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"textlen": len(part),
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}
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try:
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with async_timeout.timeout(10):
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request = await websession.get(
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GOOGLE_SPEECH_URL, params=url_param, headers=self.headers
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)
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if request.status != HTTP_OK:
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_LOGGER.error(
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"Error %d on load URL %s", request.status, request.url
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)
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return None, None
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data += await request.read()
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except (asyncio.TimeoutError, aiohttp.ClientError):
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_LOGGER.error("Timeout for google speech")
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return None, None
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return "mp3", data
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@staticmethod
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def _split_message_to_parts(message):
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"""Split message into single parts."""
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if len(message) <= MESSAGE_SIZE:
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return [message]
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punc = "!()[]?.,;:"
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punc_list = [re.escape(c) for c in punc]
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pattern = "|".join(punc_list)
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parts = re.split(pattern, message)
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def split_by_space(fullstring):
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"""Split a string by space."""
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if len(fullstring) > MESSAGE_SIZE:
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idx = fullstring.rfind(" ", 0, MESSAGE_SIZE)
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return [fullstring[:idx]] + split_by_space(fullstring[idx:])
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return [fullstring]
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msg_parts = []
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for part in parts:
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msg_parts += split_by_space(part)
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return [msg for msg in msg_parts if len(msg) > 0]
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