Import a DNS zone file into hover.com

import_zone_to_hover.rb

#!/usr/bin/env ruby

# import am DNS zone file into Hover
#
# first get your domain ID from here:
# https://www.hover.com/api/domains/yourdomain.com/dns/
#
# install the required gems:
#
# gem install hover dns-zone
#
# then run like so:
#
# DOMAIN_ID=domain123 USERNAME=myusername PASSWORD=mypassword ZONE_FILE=mydomain.zone ./import_zone_to_hover.rb
#

require 'hover'
require 'dns/zone'
require 'logger'

def get_content(record)
  case record.type
  when 'A'
    record.address
  when 'CNAME'
    record.domainname
  when 'TXT'
    record.text
  when 'MX'
    record.priority.to_s + ' ' + record.exchange
  when 'NS'
    record.nameserver
  end
end

def record_exists?(record)
  $existing_records.find  {|r|
    r['type']    == record.type     && \
    r['name' ]   == record.label    && \
    r['content'] == get_content(record)
  }
end

logger            = Logger.new(STDOUT)
domain_id         = ENV['DOMAIN_ID']
api               = Hover::Api.new(ENV['USERNAME'], ENV['PASSWORD'])
text              = File.read(ENV['ZONE_FILE'])
zone              = DNS::Zone.load(text)
$existing_records = api.domain_dns(domain_id)

logger.info "zone file contains #{zone.records.count} records"

zone.records.each do |record|
  # when migrating to Hover they become the SOA for the domain
  next if record.type == 'SOA'

  if record_exists?(record)
    logger.warn "skipping existing record: #{record.dump}"
  else
    logger.info "creating record: #{record.dump}"

    api.create_record(domain_id, record.label, record.type, get_content(record))

    sleep 1   # workaround for Hover API closing connections
  end
end

logger.info 'finished'