OTP 2 factor auth for Errbot (errbot.net)

The goal is to implement OTP compatible flow for Google Authenticator and OpenOTP.

This is working including the qrcode exchange.

How to install it:

!repos install https://github.com/gbin/err-otp.git

How to use it in a nutshell:

Flag a command to require an OTP (as an admin):

!otp_addcmd [command_name] # to protect a command by OTP

Send a secret to a user: This will send a qrcode to someone so they can scan it with their freeOTP app or google authenticator.

!otp_secret [somebody] 

Then when this somebody tries the command, the bot will block it, ask for an OTP and once it is entered by the somebody it should unlock and execute it.