Make domain unavailable when blocked

app/models/dns/domain_name.rb

@@ -0,0 +1,25 @@
+module DNS
+  # Namespace is needed, because a class with the same name is defined by `domain_name` gem,
+  # a dependency of `actionmailer`,
+  class DomainName
+    def initialize(name)
+      @name = name
+    end
+
+    def unavailable?
+      blocked?
+    end
+
+    def unavailability_reason
+      :blocked if blocked?
+    end
+
+    private
+
+    attr_reader :name
+
+    def blocked?
+      BlockedDomain.where(name: name).any?
+    end
+  end
+end

app/models/epp/domain.rb

@@ -793,23 +793,32 @@ class Epp::Domain < Domain
 
       result = []
 
-      domain_names.each do |domain_name|
-        domain_name.strip!
-        domain_name.downcase!
-        unless DomainNameValidator.validate_format(domain_name)
-          result << { name: domain_name, avail: 0, reason: 'invalid format' }
+      domain_names.each do |domain_name_as_string|
+        domain_name_as_string.strip!
+        domain_name_as_string.downcase!
+
+        unless DomainNameValidator.validate_format(domain_name_as_string)
+          result << { name: domain_name_as_string, avail: 0, reason: 'invalid format' }
           next
         end
 
-        if ReservedDomain.pw_for(domain_name).present?
-          result << { name: domain_name, avail: 0, reason: I18n.t('errors.messages.epp_domain_reserved') }
+        if ReservedDomain.pw_for(domain_name_as_string).present?
+          result << { name: domain_name_as_string, avail: 0, reason: I18n.t('errors.messages.epp_domain_reserved') }
           next
         end
 
-        if Domain.find_by_idn domain_name
-          result << { name: domain_name, avail: 0, reason: 'in use' }
+        domain_name = DNS::DomainName.new(domain_name_as_string)
+
+        if domain_name.unavailable?
+          reason = domain_name.unavailability_reason
+          result << { name: domain_name_as_string, avail: 0, reason: I18n.t("errors.messages.epp_domain_#{reason}") }
+          next
+        end
+
+        if Domain.find_by_idn domain_name_as_string
+          result << { name: domain_name_as_string, avail: 0, reason: 'in use' }
         else
-          result << { name: domain_name, avail: 1 }
+          result << { name: domain_name_as_string, avail: 1 }
         end
       end
 

config/locales/en.yml

@@ -197,6 +197,7 @@ en:
     messages:
       blank: 'is missing'
       epp_domain_reserved: 'Domain name is reserved'
+      epp_domain_blocked: Blocked
       epp_obj_does_not_exist: 'Object does not exist'
       epp_authorization_error: 'Authorization error'
       epp_id_taken: 'Contact id already exists'

test/integration/epp/domain/check/base_test.rb

@@ -88,6 +88,29 @@ class EppDomainCheckBaseTest < ApplicationIntegrationTest
     assert_equal 'in use', response_xml.at_xpath('//domain:reason', 'domain' => 'https://epp.tld.ee/schema/domain-eis-1.0.xsd').text
   end
 
+  def test_domain_is_unavailable_when_blocked
+    assert_equal 'blocked.test', blocked_domains(:one).name
+
+    request_xml = <<-XML
+      <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+      <epp xmlns="https://epp.tld.ee/schema/epp-ee-1.0.xsd">
+        <command>
+          <check>
+            <domain:check xmlns:domain="https://epp.tld.ee/schema/domain-eis-1.0.xsd">
+              <domain:name>blocked.test</domain:name>
+            </domain:check>
+          </check>
+        </command>
+      </epp>
+    XML
+
+    post '/epp/command/check', { frame: request_xml }, 'HTTP_COOKIE' => 'session=api_bestnames'
+
+    response_xml = Nokogiri::XML(response.body)
+    assert_equal '0', response_xml.at_xpath('//domain:name', 'domain' => 'https://epp.tld.ee/schema/domain-eis-1.0.xsd')['avail']
+    assert_equal 'Blocked', response_xml.at_xpath('//domain:reason', 'domain' => 'https://epp.tld.ee/schema/domain-eis-1.0.xsd').text
+  end
+
   def test_domain_is_unavailable_when_reserved
     assert_equal 'reserved.test', reserved_domains(:one).name
 

test/models/dns/domain_name_test.rb

@@ -0,0 +1,11 @@
+require 'test_helper'
+
+class DNS::DomainNameTest < ActiveSupport::TestCase
+  def test_unavailable_when_blocked
+    domain_name = DNS::DomainName.new('blocked.test')
+    assert_equal 'blocked.test', blocked_domains(:one).name
+
+    assert domain_name.unavailable?
+    assert_equal :blocked, domain_name.unavailability_reason
+  end
+end