HE.net DynDNS supporting ipv4 and ipv6 (single call)

ddns-update.js

module['exports'] = function simpleHttpRequest (hook) {
  var request = require('request')
  var async = require('async')
  var Hoek = require('hoek')
  var _ = require('lodash')

  var host = hook.params.domain
  var password = hook.params.password
  var IPs = []

  if (_.isString(hook.params.ipv4) && hook.params.ipv4.indexOf('.') !== -1) {
    IPs.push(hook.params.ipv4)
  }

  if (_.isString(hook.params.ipv6) && hook.params.ipv6.indexOf(':') !== -1) {
    IPs.push(hook.params.ipv6)
  }

  if (_.isEmpty(IPs) || !host || !password) {
    hook.res.statusCode = 500
    return hook.res.end(JSON.stringify({ status: 500, error: 'Parameter invalid host, password and at least ip is required (ipv4 and/or ipv6)', host: host, ips: IPs }, null, 2))
  }

  var defaults = {
    url: 'https://dyn.dns.he.net/nic/update',
    strictSSL: false,
    form: {
      hostname: host,
      password: password
    }
  }

  var statusMap = {
    badauth: 401,
    badip: 400
  }

  async.map(IPs, function (ip, next) {
    request.post(Hoek.applyToDefaults(defaults, {form: {myip: ip}}), function (error, response, body) {
      next(error, { ip: ip, status: statusMap[body] || response.statusCode, body: body })
    })
  }, function (error, results) {
    if (error) {
      hook.res.statusCode = 500
      return hook.res.end(JSON.stringify({ status: 500, error: error, host: host, ips: IPs }, null, 2))
    }

    var failure = _.find(results, function (result) {
      return result.status !== 200
    })

    var statusCode = failure ? failure.status : 200
    var responseBody = JSON.stringify({ status: statusCode, host: host, ips: IPs, results: results }, null, 2)
    hook.res.statusCode = statusCode
    return hook.res.end(responseBody)
  })
}