DECODE 4.0

DECODE 4.0 was a 24 hours cryptic hunt with clues scattered on the entire internet in RTE (Road to Elicit) event organized by MUJ ACM SIGAI STUDENT CHAPTER. This repository saves all the code that was used in the event. To run the same, create a MongoDB database with the given schema along with an oauth2 discord bot.

Routes

HOME ROUTES

• /: Homepage
• /leaderboard: Check real-time leaderboard
• /menu: Open menu to select the next question to solve.
  • Each easy solve opens up medium as well as the easy for the next question.
  • Each medium solve opens up hard for the same question.
  • Each hard solves completes the question and marks the progress as 3/3 solved.
• /about: Redirects to ACM's social page.
• /login: Redirects to discord oauth2 authentication page.

API ROUTES

• /api/oauth2/discord: From discord oauth2 page with token.
• /api/check-answer: Answer validation and progress tracker.

BACKLINK ROUTE

• /backlink/{id}: Acts as a backlink for the hunt.

LEVEL ROUTES

• /level/{experiment}/{etype}: Opens the exact same experiment with it's type. Only accessable if the conditions are met.
• /level/escape-day: 11th experiment. More of an epilogue and thank you message.

USERS ROUTES

• /users/@me: Opens your personal profile.
• /users/{discord_id}: Opens the user's profile. The ID is accesable via leaderboard.

SOCIALS ROUTES

• socials/discord: Redirects to discord server.

MongoDB Schema

All collections:

• announcements: stores the annoncements.
• questions: all questions (total 15x3 questions)
• users: all user data.
• solve matrix: Keeps track of all the questions done by the user.

Announcements

{
    "_id": 12983712983, //timestamp in IST
    "title": "announcement title",
    "description": "event description, can be HTMl code"
}

questions

{
    "_id": 123, // question number
    "easy":{
        "question": "some long text of question string",
        "img": "<img src='...'>",
        "video": "<video>",
        "audio": "",
        "answer": "askjhd892e" // hashed password
    },
    "medium":{
        "question": "some long text of question string",
        "img": "<img src='...'>",
        "video": "<video>",
        "audio": "",
        "answer": "askjhd892e" // hashed password
    },
    "hard":{
        "question": "some long text of question string",
        "img": "<img src='...'>",
        "video": "<video>",
        "audio": "",
        "answer": "askjhd892e" // hashed password
    }
}

solve matrix

{
    "user": "2918371289327", // userID
    "experiment": 1, // experiment number
    "etype": 0, // experiment type (easy, medium, hard)
    "time": 2938729381232, // IST timestamp
}

users

{
    "_id": 91371298312, // discord user ID
    "username": "pushkal",
    "avatar": "/static/avatar/ID.png",
    "discriminator": "0",
    "email": "randomemail@gmail.com",
    "token": "JWT user token",
    "points": 0193, // points gained via solving questions and easter eggs.
    "time": 19283719823, // last time the user sucessfully solved a question.
    "1-0":{
      "status": true, // true or false for solved or unsolved respectively
      // used for finding out the average and all.
      "start": 0 // if set to 0 then update it to the current timestamp and never update again
    },
}

Screenshots

HOMEPAGE

MENU (total 10 experiments but only 3 visible since easy of 2 isn't solved yet.)

LEADERBOARD

USERS

LEVELS: clues hidden within inspect tab.

credits

Thank you everyone for taking part in this event.

Some positive feedback from the participants.