add get_nameserver_config to Lumberg::Whm::Dns. (#113)

add get_nameserver_config to Lumberg::Whm::Dns.

Bump version to 4.1.0

lib/lumberg/version.rb

@@ -1,3 +1,3 @@
 module Lumberg
-  VERSION = '4.0.0'
+  VERSION = '4.1.0'
 end

lib/lumberg/whm/dns.rb

@@ -52,6 +52,14 @@ def get_zone_record(options = {})
         server.perform_request('getzonerecord', options)
       end
 
+      # Retrieves the default nameservers
+      #
+      # ==== Required
+      #  * <tt>:"api.version".to_sym</tt> - PENDING
+      def get_nameserver_config(options = {})
+        server.perform_request('get_nameserver_config', options.merge(response_key: 'data'))
+      end
+
       # Displays the DNS zone configuration for a specific domain
       #
       # ==== Required

spec/vcr_cassettes/whm/dns/get_nameserver_config.yml

@@ -0,0 +1,29 @@
+---
+http_interactions:
+- request:
+    method: get
+    uri: https://myhost.com:2087/json-api/get_nameserver_config?api.version=1
+    body:
+      encoding: US-ASCII
+      string: ''
+    headers:
+      Authorization:
+      - WHM root:iscool
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Server:
+      - cpsrvd/11.28.64
+      Transfer-Encoding:
+      - chunked
+      Content-Type:
+      - text/plain
+    body:
+      encoding: UTF-8
+      string: ! '{"data":{"nameservers": ["ns1.example.com", "ns2.example.com"]},"metadata":{"result":1,"reason":"OK","version":1,"command":"get_nameserver_config"}}'
+    http_version: '1.1'
+  recorded_at: Tue, 04 Jul 2017 11:32:20 GMT
+recorded_with: VCR 2.9.3
+...

spec/whm/dns_spec.rb

@@ -83,6 +83,19 @@ module Lumberg
       end
     end
 
+
+    describe "#get_nameserver_config" do
+      use_vcr_cassette "whm/dns/get_nameserver_config"
+
+      it "returns the nameservers" do
+        result = @dns.get_nameserver_config("api.version".to_sym => 1)
+        nameservers = result[:params][:nameservers]
+        nameservers.size.should == 2
+        nameservers.should be_include('ns1.example.com')
+        nameservers.should be_include('ns2.example.com')
+      end
+    end
+
     describe "#dumpzone" do
       use_vcr_cassette "whm/dns/dumpzone"