Files
smsbot/smsbot/telegram.py

119 lines
4.3 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)