test service container

app/config/services.yml

@@ -4,6 +4,5 @@ parameters:
 #    parameter_name: value
 
 services:
-#    service_name:
-#        class: AppBundle\Directory\ClassName
-#        arguments: ["@another_service_name", "plain_value", "%parameter_name%"]
+    scontainer:
+        class: AppBundle\SContainer

src/AppBundle/Controller/LookupController.php

@@ -4,7 +4,6 @@
 
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
-use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\Request;
 
 
@@ -27,7 +26,8 @@ public function LookupRoute(Request $request) {
 	 * @Route("/lookup/{domain}", name="domain_ip")
 	 */
 	public function LookupDomainRoute($domain) {
-		$d = gethostbyname($domain);
+		$scontainer = $this->get('scontainer');
+		$d = $scontainer->hostByName($domain);
 
 		return $this->render('lookup/domain.html.twig', ["domain" => $d]);
 	}

src/AppBundle/Controller/WhoIsController.php

@@ -4,7 +4,6 @@
 
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
-use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\Request;
 
 class WhoIsController extends Controller {
@@ -25,7 +24,8 @@ public function WhoisRoute(Request $request) {
 	 * @Route("/whois/{ip}", name="ip_domain")
 	 */
 	public function WhoisIPRoute($ip) {
-		$ip = gethostbyaddr($ip);
+		$scontainer = $this->get('scontainer');
+		$ip = $scontainer->hostByAddr($ip);
 
 		if (filter_var($ip, FILTER_VALIDATE_IP)) {
 			$ip = 'Failed to find domain name';

src/AppBundle/SContainer.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace AppBundle;
+
+
+class SContainer {
+
+	/**
+	 * @param string $addr
+	 * @return string
+	 */
+	public function hostByAddr($addr) {
+		return gethostbyaddr($addr);
+	}
+
+	/**
+	 * @param string $name
+	 * @return string
+	 */
+	public function hostByName($name) {
+		return gethostbyName($name);
+	}
+}