Levis Judex

(currently only supports Python) Creates a problem judging platform for problems similar to CodeForces or Leetcode.
Better version of Online-Judge
View our self-hosted page: https://judge.codejoint.org/

How to set up

NOTE: if you need any help installing the service, feel free to email us at codejointcrew@gmail.com, we are more than willing to help you through the step-by-step process if you need help intalling our service

1. You need to run this on Linux, so make sure you have Linux

2. Install isolate (make sure to install the service and run it from there or it won't work. You can find it by searching "isolate.service" on their github)

3. Install mongodb and install their system service as well, u need mongodb and mongo

4. ensure you have nodejs

5. Set up node by running npm install

6. Set up .env file, e.g:

PORT=3000
JWT_SECRET=[run node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"]
MONGO_URI=mongodb://localhost:27017/authdb
EMAIL_USER=(make your own email. This email is to send to other's email to verify. we use noreplycodejoint@gmail.com)
EMAIL_PASS=[enable 2FA on google, next make new app password in security settings, use that here. It should look like "aaaa bbbb cccc dddd"]
BASE_URL=url for your webpage, e.g localhost:3000
TRUST_PROXY=number of proxies you're using. you can uncommment out the /ip endpoint in server.js to test it

7. Edit the home page so the "About" link and contact us banner reflects you (or leave ours there if you don't mind)
8. Run sudo npm start to initialize the server
9. [optional] if you want to just check out the submission functionality and don't feel like setting up the email verification system, then:
   a. "sign up" on the frontend,
   b. run mongosh "mongodb://localhost:27017/authdb" and then db.users.find()
   c. get your verificationToken, and go to [webpage]/verify/{verificationToken}/ i.e http://localhost:3000/verify/39rj84j9/
   d. after verifying, login and use the website as normal.

How to make a problem

Use the problem creator at [url]/admin/add-problem/. To add yourself as an admin, you will need to do some work with mongodb (see useful_commands.md)

How to make a contest (we have template contests already to help you)

Coming soon™

Documentation

• Run npm run docs to generate docs.

Special Thanks

• Brian Dean for informing us of the sandboxing tool USACO uses (ioi isolate, open-sourced on github)
• thanks to ChatGPT for setting the Vibes ~~