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require 'dns_common/dns_common'
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require 'ipaddr'
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module Proxy::Dns
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class Api < ::Sinatra::Base
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extend Proxy::Dns::DependencyInjection::Injectors
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inject_attr :dns_provider, :server
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helpers ::Proxy::Helpers
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authorize_with_trusted_hosts
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authorize_with_ssl_client
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post "/?" do
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fqdn = params[:fqdn]
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value = params[:value]
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type = params[:type].upcase unless params[:type].nil?
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log_halt(400, "'create' requires fqdn, value, and type parameters") if fqdn.nil? || value.nil? || type.nil?
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begin
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validate_dns_name!(fqdn)
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case type
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when 'A'
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ip = IPAddr.new(value, Socket::AF_INET).to_s
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server.create_a_record(fqdn, ip)
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when 'AAAA'
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ip = IPAddr.new(value, Socket::AF_INET6).to_s
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server.create_aaaa_record(fqdn, ip)
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when 'PTR'
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validate_reverse_dns_name!(value)
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server.create_ptr_record(fqdn, value)
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else
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log_halt(400, "unrecognized 'type' parameter: #{type}")
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end
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rescue Proxy::Dns::Collision => e
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log_halt 409, e
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rescue Exception => e
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log_halt 400, e
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end
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end
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delete '/:value/?:type?' do
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name = params[:value]
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if params[:type]
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type = params[:type]
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else
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type = name =~ /\.(in-addr|ip6)\.arpa$/ ? "PTR" : "A"
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end
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begin
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validate_dns_name!(name)
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case type
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when 'A'
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server.remove_a_record(name)
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when 'AAAA'
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server.remove_aaaa_record(name)
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when 'PTR'
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validate_reverse_dns_name!(name)
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server.remove_ptr_record(name)
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else
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log_halt(400, "unrecognized 'type' parameter: #{type}")
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end
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rescue Proxy::Dns::NotFound => e
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log_halt 404, e
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rescue => e
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log_halt 400, e
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end
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end
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def validate_dns_name!(name)
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raise Proxy::Dns::Error.new("Invalid DNS name #{name}") unless name =~ /^([a-zA-Z0-9]([-a-zA-Z0-9]+)?\.?)+$/
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end
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def validate_reverse_dns_name!(name)
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validate_dns_name!(name)
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raise Proxy::Dns::Error.new("Invalid reverse DNS #{name}") unless name =~ /\.(in-addr|ip6)\.arpa$/
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end
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end
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end
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