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

DNS Resource Records

// obsoleted by RFC 7208

import TXT from './txt.js'

import * as TINYDNS from '../lib/tinydns.js'

export default class SPF extends TXT {
  constructor(opts) {
    super(opts)
  }

  /****** Resource record specific setters   *******/
  setData(val) {
    this.set('data', val)
  }

  getDescription() {
    return 'Sender Policy Framework'
  }

  getRdataFields(arg) {
    return ['data']
  }

  getRFCs() {
    return [4408, 7208]
  }

  getTypeId() {
    return 99
  }

  /******  IMPORTERS   *******/
  fromTinydns(opts) {
    // SPF via generic, :fqdn:n:rdata:ttl:timestamp:lo
    const [fqdn, n, rdata, ttl, ts, loc] = opts.tinyline.substring(1).split(':')
    if (n != 99) this.throwHelp('SPF fromTinydns, invalid n')

    return new SPF({
      type: 'SPF',
      owner: this.fullyQualify(fqdn),
      data: TINYDNS.octalToChar(rdata),
      ttl: parseInt(ttl, 10),
      timestamp: ts,
      location: loc !== '' && loc !== '\n' ? loc : '',
    })
  }

  /******  EXPORTERS   *******/
  toTinydns() {
    const rdata = TINYDNS.escapeOctal(
      new RegExp(/[\r\n\t:\\/]/, 'g'),
      this.get('data'),
    )
    return this.getTinydnsGeneric(rdata)
  }
}