Refactor IP registrar restriction

#600

app/controllers/registrar/base_controller.rb

@@ -1,40 +1,37 @@
 class Registrar
   class BaseController < ApplicationController
-    before_action :authenticate_user!, :check_ip
-
     include Registrar::ApplicationHelper
 
+    before_action :authenticate_user!
+    before_action :check_ip_restriction
     helper_method :depp_controller?
-
-    def depp_controller?
-      false
-    end
-
-    def check_ip
-      return unless current_user
-      unless current_user.is_a? ApiUser
-        sign_out(current_user)
-        return
-      end
-
-      registrar_ip_whitelisted = current_user.registrar.registrar_ip_white?(request.ip)
-
-      return if registrar_ip_whitelisted
-      flash[:alert] = t('ip_is_not_whitelisted')
-      sign_out(current_user)
-      redirect_to registrar_login_path and return
-    end
-
     helper_method :head_title_sufix
 
-    def head_title_sufix
-      t(:registrar_head_title_sufix)
-    end
-
     protected
 
     def current_ability
       @current_ability ||= Ability.new(current_user, request.remote_ip)
     end
+
+    private
+
+    def check_ip_restriction
+      ip_restriction = Authorization::RestrictedIP.new(request.ip)
+      allowed = ip_restriction.can_access_registrar_area?(current_user.registrar)
+
+      unless allowed
+        flash[:alert] = t('registrar.authorization.ip_not_allowed', ip: request.ip)
+        sign_out current_user
+        redirect_to registrar_login_url
+      end
+    end
+
+    def depp_controller?
+      false
+    end
+
+    def head_title_sufix
+      t(:registrar_head_title_sufix)
+    end
   end
 end