Add URL generation method and update to Symfony 2.1 standards

Controller/CaptchaController.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Gregwar\CaptchaBundle\Controller;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+
+/**
+ * Generates a captcha via a URL
+ *
+ * @author Jeremy Livingston <jeremy.j.livingston@gmail.com>
+ */
+class CaptchaController extends Controller
+{
+    /**
+     * Action that is used to generate the captcha, save its code, and stream the image
+     *
+     * @param \Symfony\Component\HttpFoundation\Request $request
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function generateCaptchaAction(Request $request)
+    {
+        $options = $this->container->getParameter('gregwar_captcha.config');
+        if (!$options['as_url']) {
+            return $this->createNotFoundException('Unable to generate a captcha via a URL without the proper configuration.');
+        }
+
+        /* @var \Gregwar\CaptchaBundle\Generator\CaptchaGenerator $generator */
+        $generator = $this->container->get('gregwar_captcha.generator');
+
+        return new Response($generator->generate($options));
+    }
+}
+