@nictool/dns-resource-record/rr/key.js

DNS Resource Records

import RR from '../rr.js'

export default class KEY extends RR {
  constructor(opts) {
    super(opts)
  }

  /****** Resource record specific setters   *******/
  setFlags(val) {
    // a 2 octet Flags Field
    this.is16bitInt('KEY', 'flags', val)

    this.set('flags', val)
  }

  setProtocol(val) {
    // 1 octet
    this.is8bitInt('KEY', 'protocol', val)

    this.set('protocol', val)
  }

  setAlgorithm(val) {
    // 1 octet
    // 1=RSA/MD5, 2=DH, 3=DSA/SHA-1, 4=EC, 5=RSA/SHA-1
    if (![1, 2, 3, 4, 5, 253, 254].includes(val))
      this.throwHelp(`KEY: algorithm invalid`)

    this.set('algorithm', val)
  }

  setPublickey(val) {
    if (!val) this.throwHelp(`KEY: publickey is required`)

    this.set('publickey', val)
  }

  getDescription() {
    return 'DNS Public Key'
  }

  getRdataFields(arg) {
    return ['flags', 'protocol', 'algorithm', 'publickey']
  }

  getRFCs() {
    return [2535, 3445]
  }

  getTypeId() {
    return 25
  }

  /******  IMPORTERS   *******/

  fromBind(opts) {
    // test.example.com  3600  IN  KEY Flags Protocol Algorithm PublicKey
    const [owner, ttl, c, type, flags, protocol, algorithm] =
      opts.bindline.split(/\s+/)
    return new KEY({
      owner,
      ttl: parseInt(ttl, 10),
      class: c,
      type: type,
      flags: parseInt(flags, 10),
      protocol: parseInt(protocol, 10),
      algorithm: parseInt(algorithm, 10),
      publickey: opts.bindline.split(/\s+/).slice(7).join(' ').trim(),
    })
  }

  /******  EXPORTERS   *******/
}