eval.js

// The EVAL command will execute **ANY** arbitrary javascript code given to it.
// THIS IS PERMISSION LEVEL 10 FOR A REASON! It's perm level 10 because eval
// can be used to do **anything** on your machine, from stealing information to
// purging the hard drive. DO NOT LET ANYONE ELSE USE THIS

const { codeBlock } = require("@discordjs/builders");

/*
  MESSAGE CLEAN FUNCTION

  "Clean" removes @everyone pings, as well as tokens, and makes code blocks
  escaped so they're shown more easily. As a bonus it resolves promises
  and stringifies objects!
  This is mostly only used by the Eval and Exec commands.
*/
async function clean(client, text) {
  if (text && text.constructor.name == "Promise")
    text = await text;
  if (typeof text !== "string")
    text = require("util").inspect(text, {depth: 1});

  text = text
    .replace(/`/g, "`" + String.fromCharCode(8203))
    .replace(/@/g, "@" + String.fromCharCode(8203));

  text = text.replaceAll(client.token, "[REDACTED]");

  return text;
}

// However it's, like, super ultra useful for troubleshooting and doing stuff
// you don't want to put in a command.
exports.run = async (client, message, args, level) => { // eslint-disable-line no-unused-vars
  const code = args.join(" ");
  const evaled = eval(code);
  const cleaned = await clean(client, evaled);
  message.channel.send(codeBlock("js", cleaned));
};

exports.conf = {
  enabled: true,
  guildOnly: false,
  aliases: [],
  permLevel: "Bot Owner"
};

exports.help = {
  name: "eval",
  category: "System",
  description: "Evaluates arbitrary javascript.",
  usage: "eval [...code]"
};