A small, lightweight and extensible DynDNS server written with Ruby and Rack.
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# frozen_string_literal: true
module Dyndnsd
module Generator
class Bind
# @param domain [String]
# @param updater_params [Hash{String => Object}]
def initialize(domain, updater_params)
@domain = domain
@ttl = updater_params['ttl']
@dns = updater_params['dns']
@email_addr = updater_params['email_addr']
@additional_zone_content = updater_params['additional_zone_content']
end
# @param db [Dyndnsd::Database]
# @return [String]
def generate(db)
out = []
out << "$TTL #{@ttl}"
out << "$ORIGIN #{@domain}."
out << ''
out << "@ IN SOA #{@dns} #{@email_addr} ( #{db['serial']} 3h 5m 1w 1h )"
out << "@ IN NS #{@dns}"
out << ''
db['hosts'].each do |hostname, ips|
ips.each do |ip|
ip = IPAddr.new(ip).native
type = ip.ipv6? ? 'AAAA' : 'A'
name = hostname.chomp(".#{@domain}")
out << "#{name} IN #{type} #{ip}"
end
end
out << ''
out << @additional_zone_content
out << ''
out.join("\n")
end
end
end
end