#!/usr/bin/env ruby require_relative "utils" require "netaddr" class RdnsZone def initialize(data, subnet) @data = data @subnet = NetAddr::CIDR.create(subnet) end attr_reader :data def [](key) (data["zone"] || {})[key] end def pointers(&blk) version = @subnet.version @data["network"].each do |name, host| ip = host["ipv#{version}"] next unless ip arpa = NetAddr::CIDR.create(ip).arpa next unless arpa.end_with?(@subnet.arpa) host_part = arpa[0, arpa.size - @subnet.arpa.size - 1] yield name, host_part end end def name @subnet.arpa.gsub(/\.$/, "") end def write_zone_file(root_path) zone_template = Template.new(root_path.join("templates/rdns-zone.erb")) rdns_path = root_path.join("zones", name) atomic_write(rdns_path, zone_template.render(zone: self)) end end registry = Registry.new root_path = Pathname.new(File.expand_path("../..", __FILE__)) zone_template = Template.new(root_path.join("templates/dn42-zone.erb")) result = zone_template.render(data: registry.data) atomic_write(root_path.join("zones/dn42.zone"), result) if subnet = try(registry.data, "zone", "v4_subnet") RdnsZone.new(registry.data, subnet).write_zone_file(root_path) end if subnet = try(registry.data, "zone", "v6_subnet") RdnsZone.new(registry.data, subnet).write_zone_file(root_path) end