Files
smsbot/smsbot/telegram.py

98 lines
4.1 KiB
Python

import logging
from prometheus_client import Counter, Summary
from telegram.ext import CommandHandler, Updater
from smsbot.utils import get_smsbot_version
REQUEST_TIME = Summary('telegram_request_processing_seconds', 'Time spent processing request')
COMMAND_COUNT = Counter('telegram_command_count', 'Total number of commands processed')
class TelegramSmsBot(object):
def __init__(self, telegram_token, allow_subscribing=False, owner=None, subscribers=None):
self.logger = logging.getLogger(self.__class__.__name__)
self.bot_token = telegram_token
self.subscriber_ids = subscribers or []
self.set_owner(owner)
self.updater = Updater(self.bot_token, use_context=True)
self.updater.dispatcher.add_handler(CommandHandler('help', self.help_handler))
self.updater.dispatcher.add_handler(CommandHandler('start', self.help_handler))
if allow_subscribing:
self.updater.dispatcher.add_handler(CommandHandler('subscribe', self.subscribe_handler))
self.updater.dispatcher.add_handler(CommandHandler('unsubscribe', self.unsubscribe_handler))
self.updater.dispatcher.add_error_handler(self.error_handler)
def start(self):
self.logger.info('Starting bot...')
self.updater.start_polling()
self.bot = self.updater.bot
self.logger.info('Bot Ready')
def stop(self):
self.updater.stop()
@REQUEST_TIME.time()
def help_handler(self, update, context):
"""Send a message when the command /help is issued."""
self.logger.info('/help command received in chat: %s', update.message.chat)
commands = []
for command in self.updater.dispatcher.handlers[0]:
commands.extend(['/{0}'.format(cmd) for cmd in command.command])
update.message.reply_markdown('Smsbot v{0}\n\n{1}'.format(get_smsbot_version(), '\n'.join(commands)))
COMMAND_COUNT.inc()
@REQUEST_TIME.time()
def subscribe_handler(self, update, context):
self.logger.info('/subscribe command received')
if update.message.chat['id'] not in self.subscriber_ids:
self.logger.info('{0} subscribed'.format(update.message.chat['username']))
self.subscriber_ids.append(update.message.chat['id'])
self.send_owner('{0} has subscribed'.format(update.message.chat['username']))
update.message.reply_markdown('You have been subscribed to SMS notifications')
else:
update.message.reply_markdown('You are already subscribed to SMS notifications')
COMMAND_COUNT.inc()
@REQUEST_TIME.time()
def unsubscribe_handler(self, update, context):
self.logger.info('/unsubscribe command received')
if update.message.chat['id'] in self.subscriber_ids:
self.logger.info('{0} unsubscribed'.format(update.message.chat['username']))
self.subscriber_ids.remove(update.message.chat['id'])
self.send_owner('{0} has unsubscribed'.format(update.message.chat['username']))
update.message.reply_markdown('You have been unsubscribed to SMS notifications')
else:
update.message.reply_markdown('You are not subscribed to SMS notifications')
COMMAND_COUNT.inc()
def error_handler(self, update, context):
"""Log Errors caused by Updates."""
self.logger.warning('Update "%s" caused error "%s"', update, context.error)
self.send_owner('Update "%{0}" caused error "{1}"'.format(update, context.error))
def send_message(self, message, chat_id):
self.bot.sendMessage(text=message, chat_id=chat_id)
def send_owner(self, message):
if self.owner_id:
self.send_message(message, self.owner_id)
def send_subscribers(self, message):
for chat_id in self.subscriber_ids:
self.send_message(message, chat_id)
def set_owner(self, chat_id):
self.owner_id = chat_id
if self.owner_id and self.owner_id not in self.subscriber_ids:
self.subscriber_ids.append(self.owner_id)
def add_subscriber(self, chat_id):
self.subscriber_ids.append(chat_id)