#! /usr/bin/env runjs

var StringUtil = Packages.me.hatter.tools.commons.string.StringUtil;
var Bytes = Packages.me.hatter.tools.commons.bytes.Bytes;
var RReader = Packages.me.hatter.tools.commons.io.RReader;

var main = () => {
    if ($ARGS == null || $ARGS.length == 0) {
        println('digcaa.js - Dig CAA.')
        println();
        println('ERROR: NO arguments assigned!');
        println('digcaa.js <DOMAIN i.e. google.com>');
        return;
    }
    var result = $$.shell().commands('dig', '+short', '-t', 'TYPE257', $ARGS[0]).start();
    var out = result[0].string();
    var err = result[1].string();
    if ((err != null) && (err != '')) {
        println('+ ERROR: ' + err)
    }
    $ARRAY(RReader.from(out).listAndClose())
    .filter((ln) => {return (ln.trim() != '');})
    .forEach((ln) => {
        var ss = $$.asList(ln.split(/\s+/));
        var f = ss[2].substring(0, 2);
        var l = ss[2].substring(2, 4);
        var p1 = ss[2].substring(4, (4 + parseInt(l, 16) * 2));
        var p2 = ss[2].substring(4 + p1.length);
        if (ss.size() > 3) {
            for (var i = 3; i < ss.size(); i++) { p2 += ss[i]; }
        }
        println(ln + StringUtil.repeat(' ', 50 - ln.length) + ' --> ' + parseInt(f, 16) + ' ' + Bytes.fromHex(p1) + ' "' + Bytes.fromHex(p2) + '"');
    });
};

main();