working-rcon/dist/packet.js

A working rcon library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.decode = exports.peekSize = exports.encode = exports.Types = void 0;
const Types = {
  SERVERDATA_AUTH: 3,
  SERVERDATA_AUTH_RESPONSE: 2,
  SERVERDATA_EXECCOMMAND: 2,
  SERVERDATA_RESPONSE_VALUE: 0
};
exports.Types = Types;

const encode = ({
  id,
  type,
  body
}) => {
  const bodyBytes = Buffer.from(body, 'utf8');
  const size = bodyBytes.length + 10;
  const buf = Buffer.alloc(size + 4);
  buf.writeInt32LE(size, 0);
  buf.writeInt32LE(id, 4);
  buf.writeInt32LE(type, 8);
  bodyBytes.copy(buf, 12);
  return buf;
};

exports.encode = encode;

const peekSize = (buf, offset) => buf.length - offset < 4 ? null : buf.readInt32LE(offset) + 4;

exports.peekSize = peekSize;

const decode = buf => {
  const size = buf.readInt32LE(0);
  const id = buf.readInt32LE(4);
  const type = buf.readInt32LE(8);
  const body = buf.toString('utf8', 12, size - 10);
  return {
    id,
    type,
    body
  };
};

exports.decode = decode;