Telegram bot needed

, i need a bot like junctionbot .....it allowes user to get content from public/private channels even if channel is not being opened or opened by user...withh the help of that bot user put channel link in bot and bot will verify the link..if its proper then bot will respod that Subscried to channel name successfil;l and then whenever those relateted channel admin post anything in the channel then bot autoforward that content into the bot itself..