The Marauder's App

Qais Patankar — Wed, 20 May 2020 12:25:02 +0000

My Final Project

Find free spaces in university labs:

find out if a machine is free, occupied, or turned off
find out how long any occupied machine has been logged in for (in case someone forgot to log off)
find your friends! (so you don't need to study alone... or so you can study alone)

Killed by covid-19. Because now nobody is on-site.

Demo Link

http://mapp.betterinformatics.com/demo

Link to Code

The Marauder's App

This is now a monorepo containing:

mapp-worker to send information to the backend
website to display machine information

View on GitHub

How I built it (what's the stack? did I run into issues or discover something new along the way?)

Frontend uses:

Bootstrap 4
JavaScript (and unfortunately, jQuery)

Backend uses:

Python / Flask
Redis
Go (for the SSH bot, that fingers every machine)
Docker

Some tricky things include working around:

uni breaking the finger command
a bug where some users will still have processes running after they log off, making it harder to determine if someone is logged on / how long they have been logged on for

I also integrated with the university's authentication system, so I built a library called 'gosign' to make it easier for others to integrate CoSign authentication into their own systems.

gosign: CoSign library for Go

gosign is an experimental library that provides an interface to a CoSign daemon. It works well, but the API might change in the future.

CoSign is a "secure single sign-on web authentication system".

This only maintains a living connection and can handle the CHECK command (this project was created for a "CoSign filter"). There are no plans to support further protocol commands. This library is only built to support CoSign protocol version 2 (in use as of Cosign v2.x). Contributions are welcome.

Example

Creating a CoSign client

client, err := gosign.Dial(&gosign.Config{
  Address: "www.ease.ed.ac.uk:6663"
  Service: "betterinformatics.com"
  TLSConfig: &tls.Config{
    ServerName:         "www.ease.ed.ac.uk"
    Certificates:       []

…

View on GitHub

DEV Community: Qais Patankar

The Marauder's App

My Final Project

Demo Link

Link to Code

compsoc-edinburgh / mapp