roblox-funcaptcha

roblox-funcaptcha is a library designed to interface with roblox's funcaptchas.

Usage

You can simply install the library using:

npm install roblox-funcaptcha

It is then available to require in your node js code.

let fun = require("roblox-funcaptcha")

API

Promise<string> fun.getToken(publicKey: string, blob?: string)
This function will fetch a captcha token.
A captcha token is used to get funcaptchas.
NOTE: You are only able to fetch a maximum of 10 funcaptchas with one token.

Promise<Session> fun.getFuncaptcha(token: object | string)
Using this function, you are able to fetch a captcha challenge.
The token argument must either be the parsed json from fun.getToken, or the raw token string (token property) from fun.getToken.

Session

Properties
object Session.info An object containing all the information about the captcha.
string Session.token Internal.
string Session.challengeID Internal.
string Session.gameVariant The variant of the game; e.g. "horse" or "fish" for tile pick games
number Session.gameType The type of game. 1 is the ball you have to rotate (not supported), 2 is unknown, and 3 is the tile picking game.
any Session.encrypted Internal.
Array<string> Session.imgs Internal.
string Session.breaker Internal.
number Session.waves The amount of waves that need to be completed.
string Session.key Internal.
number Session.wave The current wave, starts at 0.
Array<Object | Array> Session.answer_history Internal.
string Session.originalToken The original token from fun.getToken. Very useful for sending a login request.

Methods
Promise<Buffer> getImage()
Returns the image of the current wave in a buffer in gif format.
NOTE: Only call this function once per wave, or else things might break.

Promise<string> answer(answer: number)
Answers the current captcha wave, and returns the response from the API.

• A response of {"response": "not answered"} means you haven't finished the captcha yet. There are still more waves left.
• A reponse of {"response": "answered", "solved": false, "incorrect_guess": "", "score": 3 } means you have finished the captcha, but failed it. You have answered incorrectly at least once.
• A reponse of {"response": "answered", "solved": true, "incorrect_guess": "", "score": 3 } means you have successfully finished the captcha. You have answered correctly and are good to go.

NOTE: The answer MUST be a number from 0-5. Use the following image as a guide.

Example

This example will get a captcha, and prompt you for an answer in the command line. Images will be written in the same folder as the script.

let fs = require("fs")
let fun = require("./main")
let readline = require("readline")
let rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
})

function ask(question) {
    return new Promise((resolve, reject) => {
        rl.question(question, (answer) => {
            resolve(answer)
        })
    })
}

fun.getToken("476068BF-9607-4799-B53D-966BE98E2B81").then(async token => { 
    let captcha = await fun.getFuncaptcha(token)
    console.log(captcha.gameVariant)
    console.log(captcha.breaker)
    
    for(let x = 0; x < captcha.waves; x++) {
        fs.writeFileSync(`${x}.gif`, await captcha.getImage())
        console.log(await captcha.answer(parseInt(await ask("Answer: "))))
    }
    console.log("Done!")
})