VK Anonymous Chat Bot

bot.py

import vk_api
import requests
import telegram
from telegram.error import NetworkError, Unauthorized
from time import sleep

vk_session = vk_api.VkApi('***', '***')
vk_session.auth()

vk = vk_session.get_api()
upload = vk_api.VkUpload(vk_session)

update_id = None
chat_id = 3

def main():
    global update_id
    # Telegram Bot Authorization Token
    bot = telegram.Bot('***')

    # get the first pending update_id, this is so we can skip over it in case
    # we get an "Unauthorized" exception.
    try:
        update_id = bot.get_updates()[0].update_id
    except IndexError:
        update_id = None

    while True:
        try:
            echo(bot)
        except NetworkError:
            sleep(1)
        except Unauthorized:
            # The user has removed or blocked the bot.
            update_id += 1
        except Exception as e:
            print(e)
            update_id += 1


def echo(bot):
    global update_id
    # Request updates after the last update_id
    for update in bot.get_updates(offset=update_id, timeout=10):
        update_id = update.update_id + 1

        if update.message:  # your bot can receive updates without messages
            # Reply to the message
            update.message.reply_text('OK.')
            message = update.message
            if message.text and message.text != '/start':
                vk.messages.send(chat_id=chat_id, message=message.text)

            if message.photo:
                file_id = message.photo[-1].file_id
                photo_file = bot.get_file(file_id)
                f_name = '/tmp/{}.jpg'.format(file_id)
                photo_file.download(f_name)
                uploaded_photos = upload.photo_messages(f_name)
                photo = uploaded_photos[0]
                vk.messages.send(
                    chat_id=chat_id,
                    attachment='photo{}_{}'.format(photo['owner_id'], photo['id'])
                )
            
if __name__ == '__main__':
    main()