Hosts attribute for domain info

app/controllers/epp/domains_controller.rb

@@ -17,6 +17,17 @@ class Epp::DomainsController < EppController
 
   def info
     authorize! :info, @domain, @password
+    @hosts = params[:parsed_frame].css('name').first['hosts'] || 'all'
+
+    case @hosts
+    when 'del'
+      @nameservers = @domain.delegated_nameservers
+    when 'sub'
+      @nameservers = @domain.subordinate_nameservers
+    when 'all'
+      @nameservers = @domain.nameservers
+    end
+
     render_epp_response '/epp/domains/info'
   end
 
@@ -88,6 +99,7 @@ class Epp::DomainsController < EppController
   def validate_info
     @prefix = 'info > info >'
     requires('name')
+    optional_attribute 'name', 'hosts', values: %(all, sub, del, none)
   end
 
   def validate_check

app/controllers/epp_controller.rb

@@ -139,6 +139,20 @@ class EppController < ApplicationController
     }
   end
 
+  def optional_attribute(element_selector, attribute_selector, options)
+    element = requires(element_selector, allow_blank: options[:allow_blank])
+    return unless element
+
+    attribute = element[attribute_selector]
+
+    return if (attribute && options[:values].include?(attribute)) || !attribute
+
+    epp_errors << {
+      code: '2306',
+      msg: I18n.t('attribute_is_invalid', attribute: attribute_selector)
+    }
+  end
+
   def exactly_one_of(*selectors)
     full_selectors = create_full_selectors(*selectors)
     return if element_count(*full_selectors, use_prefix: false) == 1

app/models/domain.rb

@@ -124,6 +124,14 @@ class Domain < ActiveRecord::Base
     domain_contacts.select { |x| x.contact_type == DomainContact::ADMIN }
   end
 
+  def subordinate_nameservers
+    nameservers.select { |x| x.hostname.end_with?(name) }
+  end
+
+  def delegated_nameservers
+    nameservers.select { |x| !x.hostname.end_with?(name) }
+  end
+
   def name=(value)
     value.strip!
     value.downcase!

app/views/epp/domains/info.xml.builder

@@ -22,12 +22,14 @@ xml.epp_head do
           xml.tag!('domain:contact', x.code, 'type' => 'admin')
         end
 
-        xml.tag!('domain:ns') do
-          @domain.nameservers.each do |x|
-            xml.tag!('domain:hostAttr') do
-              xml.tag!('domain:hostName', x.hostname)
-              xml.tag!('domain:hostAddr', x.ipv4, 'ip' => 'v4') if x.ipv4.present?
-              xml.tag!('domain:hostAddr', x.ipv6, 'ip' => 'v6') if x.ipv6.present?
+        if @nameservers && @nameservers.any?
+          xml.tag!('domain:ns') do
+            @nameservers.each do |x|
+              xml.tag!('domain:hostAttr') do
+                xml.tag!('domain:hostName', x.hostname)
+                xml.tag!('domain:hostAddr', x.ipv4, 'ip' => 'v4') if x.ipv4.present?
+                xml.tag!('domain:hostAddr', x.ipv6, 'ip' => 'v6') if x.ipv6.present?
+              end
             end
           end
         end