Basic zonefile generating

app/controllers/admin/domains_controller.rb

@@ -1,5 +1,5 @@
 class Admin::DomainsController < AdminController
-  before_action :set_domain, only: [:show, :edit, :update]
+  before_action :set_domain, only: [:show, :edit, :update, :zonefile]
 
   def index
     @q = Domain.includes(:registrar, :owner_contact).search(params[:q])
@@ -27,6 +27,11 @@ class Admin::DomainsController < AdminController
     end
   end
 
+  def zonefile
+    @zonefile = @domain.generate_zonefile
+    # send_data @zonefile, filename: 'bla.txt'
+  end
+
   private
 
   def set_domain

app/models/domain.rb

@@ -298,6 +298,35 @@ class Domain < ActiveRecord::Base
     end
   end
 
+  def generate_zonefile
+    zf = Zonefile.new
+    zf.ttl = '3600'
+    zf.origin = "#{name}."
+    ns = nameservers.first
+    zf.soa[:primary_ns] = "#{ns.hostname}."
+    zf.soa[:email] = 'hostmaster.internet.ee'
+    zf.soa[:origin] = "#{name}."
+    zf.soa[:refresh] = '10800'
+    zf.soa[:retry] = '3600'
+    zf.soa[:expire] = '604800'
+    zf.soa[:minimumTTL] = '3600'
+
+    nameservers.each do |x|
+      zf.ns << { name: "#{name}.", class: 'IN', host: "#{x.hostname}." }
+    end
+
+    dnskeys.each do |x|
+      zf.ds << { name: "#{name}.", ttl: '86400', class: 'IN', key_tag: x.ds_key_tag, algorithm: x.ds_alg,
+                 digest_type: x.ds_digest_type, digest: x.ds_digest }
+
+      zf.dnskey << { name: "#{name}.", ttl: '86400', class: 'IN', flag: x.flags,
+                     protocol: x.protocol, algorithm: x.alg, public_key: x.public_key }
+    end
+
+    zf.new_serial
+    zf.generate
+  end
+
   class << self
     def convert_period_to_time(period, unit)
       return period.to_i.days if unit == 'd'

app/views/admin/domains/zonefile.haml

@@ -0,0 +1,2 @@
+= preserve do
+  %pre= @zonefile