98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
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"""
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Allows utilizing telegram webhooks.
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See https://core.telegram.org/bots/webhooks for details
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about webhooks.
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"""
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import asyncio
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import logging
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from ipaddress import ip_network
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import voluptuous as vol
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from homeassistant.const import (
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HTTP_BAD_REQUEST, HTTP_UNAUTHORIZED)
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.http import HomeAssistantView
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from homeassistant.components.telegram_bot import CONF_ALLOWED_CHAT_IDS, \
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BaseTelegramBotEntity, PLATFORM_SCHEMA
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from homeassistant.const import CONF_API_KEY
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from homeassistant.components.http.util import get_real_ip
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DEPENDENCIES = ['http']
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REQUIREMENTS = ['python-telegram-bot==5.3.0']
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_LOGGER = logging.getLogger(__name__)
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TELEGRAM_HANDLER_URL = '/api/telegram_webhooks'
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CONF_TRUSTED_NETWORKS = 'trusted_networks'
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DEFAULT_TRUSTED_NETWORKS = [
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ip_network('149.154.167.197/32'),
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ip_network('149.154.167.198/31'),
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ip_network('149.154.167.200/29'),
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ip_network('149.154.167.208/28'),
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ip_network('149.154.167.224/29'),
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ip_network('149.154.167.232/31')
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]
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_TRUSTED_NETWORKS, default=DEFAULT_TRUSTED_NETWORKS):
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vol.All(cv.ensure_list, [ip_network])
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})
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def setup_platform(hass, config, async_add_devices, discovery_info=None):
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"""Setup the polling platform."""
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import telegram
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bot = telegram.Bot(config[CONF_API_KEY])
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current_status = bot.getWebhookInfo()
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handler_url = "{0}{1}".format(hass.config.api.base_url,
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TELEGRAM_HANDLER_URL)
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if current_status and current_status['url'] != handler_url:
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if bot.setWebhook(handler_url):
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_LOGGER.info("set new telegram webhook %s", handler_url)
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hass.http.register_view(
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BotPushReceiver(
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hass,
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config[CONF_ALLOWED_CHAT_IDS],
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config[CONF_TRUSTED_NETWORKS]))
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else:
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_LOGGER.error("set telegram webhook failed %s", handler_url)
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class BotPushReceiver(HomeAssistantView, BaseTelegramBotEntity):
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"""Handle pushes from telegram."""
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requires_auth = False
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url = TELEGRAM_HANDLER_URL
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name = "telegram_webhooks"
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def __init__(self, hass, allowed_chat_ids, trusted_networks):
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"""Initialize the class."""
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BaseTelegramBotEntity.__init__(self, hass, allowed_chat_ids)
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self.trusted_networks = trusted_networks
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@asyncio.coroutine
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def post(self, request):
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"""Accept the POST from telegram."""
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real_ip = get_real_ip(request)
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if not any(real_ip in net for net in self.trusted_networks):
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_LOGGER.warning("Access denied from %s", real_ip)
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return self.json_message('Access denied', HTTP_UNAUTHORIZED)
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try:
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data = yield from request.json()
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except ValueError:
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return self.json_message('Invalid JSON', HTTP_BAD_REQUEST)
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if not self.process_message(data):
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return self.json_message('Invalid message', HTTP_BAD_REQUEST)
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else:
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return self.json({})
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