Update folder structure & remove unecessary redundant directory

int_recaptcha/cartridge/controllers/ContactUs.js

@@ -1,9 +1,15 @@
 'use strict';
 
+var base = module.superModule;
 var server = require('server');
 
+server.extend(base);
+
+// First, let's extend the ContactUs-Landing route
+// to add recaptcha data to the template view
 server.append('Landing', function(req, res, next) {
   res.setViewData({
+    // Recaptcha API script URL
     recaptchaUrl: 'https://www.google.com/recaptcha/api.js',
     siteKey: '6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI' // Test Site Key from Google
   });
@@ -11,21 +17,26 @@ server.append('Landing', function(req, res, next) {
   next();
 });
 
-server.append('Subscribe', function(req, res, next) {
+// Now we need to extend ContactUs-Subscribe, to add our logic
+// that invokes the recaptcha service
+// We prepend here to ensure that an invalid response is caught before the email is sent
+server.prepend('Subscribe', function(req, res, next) {
+  var recaptchaService = require('*/cartridge/scripts/services/recaptcha');
   // Token automatically added to request by recaptcha
   var token = req.form['g-recaptcha-response'];
 
   // Add required parameters for validation call
   var params = {
     // This is a test secret from Google
-    // In practice, do not hardcode this. It's better to store
-    // In a custom preference or service credential Configuration
-    secret: '6LeIxAcTAAAAAGG-vFI1TnRWxMZNFuojJ4WifJWe', // Test secret key from Google
+    // In practice, do not hardcode this.
+    // It's better to store in a custom preference or service credential configuration
+    secret: '6LeIxAcTAAAAAGG-vFI1TnRWxMZNFuojJ4WifJWe',
     response: token
   };
 
   // Calls recaptcha service
   // Returns a Service class instance
+  // (start with a hardcoded fail)
   var validationResult = recaptchaService.call(params);
 
   // Actual response from Google