Captcha Generator is a Node library for quickly and easily generating captcha images that can be used through an authorized bot to verify human users on a chat platform such as Slack or Discord.
Use the package manager npm to install Captcha Generator
npm i @haileybot/captcha-generator// Import the module
const Captcha = require("@haileybot/captcha-generator");
// Create a new Captcha object
// - Optional argument to specify image height (250 to 400px, default 250)
// - Image width is 400px
// - Returned object will contain 4 properties
// - "PNGStream" is a stream object for the image file in PNG format
// - "JPEGStream" is a stream object for the image file in JPEG format
// - "dataURL" is a data URL containing the JPEG image data
// - "value" is the 6 character code the image contains
let captcha = new Captcha();
console.log(captcha.value);const path = require("path"),
fs = require("fs"),
Captcha = require("@haileybot/captcha-generator");
let captcha = new Captcha();
captcha.PNGStream.pipe(fs.createWriteStream(path.join(__dirname, `${captcha.value}.png`)));
captcha.JPEGStream.pipe(fs.createWriteStream(path.join(__dirname, `${captcha.value}.jpeg`)));This example assumes you already have the core framework of a Discord Bot set up
const Captcha = require("@haileybot/captcha-generator");
// Use this function for blocking certain commands or features from automated self-bots
function verifyHuman(msg) {
let captcha = new Captcha();
msg.channel.send({
content: "**Enter the text shown in the image below:**",
files: [{
attachment: captcha.buffer,
name: "captcha.jpg"
}]
});
let filter = m => m.author.id === msg.author.id;
let collector = msg.channel.createMessageCollector({ filter, time: 15000 });
collector.on("collect", m => {
if (m.content.toUpperCase() === captcha.value) msg.channel.send({ content: "Verified Successfully!" });
else msg.channel.send({ content: "Failed Verification!" });
collector.stop();
});
}This project is licensed under GPL-3.0
