98 lines
2.9 KiB
Python
98 lines
2.9 KiB
Python
"""Support for Telegram bot using polling."""
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import logging
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from homeassistant.const import (
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EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
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from homeassistant.core import callback
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from . import (CONF_ALLOWED_CHAT_IDS, BaseTelegramBotEntity, initialize_bot)
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_platform(hass, config):
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"""Set up the Telegram polling platform."""
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bot = initialize_bot(config)
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pol = TelegramPoll(bot, hass, config[CONF_ALLOWED_CHAT_IDS])
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@callback
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def _start_bot(_event):
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"""Start the bot."""
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pol.start_polling()
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@callback
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def _stop_bot(_event):
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"""Stop the bot."""
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pol.stop_polling()
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hass.bus.async_listen_once(EVENT_HOMEASSISTANT_START, _start_bot)
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hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, _stop_bot)
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return True
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def process_error(bot, update, error):
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"""Telegram bot error handler."""
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from telegram.error import (
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TelegramError, TimedOut, NetworkError, RetryAfter)
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try:
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raise error
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except (TimedOut, NetworkError, RetryAfter):
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# Long polling timeout or connection problem. Nothing serious.
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pass
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except TelegramError:
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_LOGGER.error('Update "%s" caused error "%s"', update, error)
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def message_handler(handler):
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"""Create messages handler."""
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from telegram import Update
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from telegram.ext import Handler
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class MessageHandler(Handler):
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"""Telegram bot message handler."""
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def __init__(self):
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"""Initialize the messages handler instance."""
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super().__init__(handler)
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def check_update(self, update): # pylint: disable=no-self-use
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"""Check is update valid."""
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return isinstance(update, Update)
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def handle_update(self, update, dispatcher):
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"""Handle update."""
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optional_args = self.collect_optional_args(dispatcher, update)
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return self.callback(dispatcher.bot, update, **optional_args)
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return MessageHandler()
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class TelegramPoll(BaseTelegramBotEntity):
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"""Asyncio telegram incoming message handler."""
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def __init__(self, bot, hass, allowed_chat_ids):
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"""Initialize the polling instance."""
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from telegram.ext import Updater
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BaseTelegramBotEntity.__init__(self, hass, allowed_chat_ids)
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self.updater = Updater(bot=bot, workers=4)
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self.dispatcher = self.updater.dispatcher
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self.dispatcher.add_handler(message_handler(self.process_update))
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self.dispatcher.add_error_handler(process_error)
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def start_polling(self):
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"""Start the polling task."""
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self.updater.start_polling()
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def stop_polling(self):
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"""Stop the polling task."""
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self.updater.stop()
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def process_update(self, bot, update):
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"""Process incoming message."""
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self.process_message(update.to_dict())
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