Rework authentication system

src/http/response/ViewResponseFactory.ts

@@ -13,6 +13,15 @@ export function view(name: string, data?: {[key: string]: any}): ViewResponseFac
     return new ViewResponseFactory(name, data)
 }
 
+/**
+ * Helper function that creates a new ViewResponseFactory that redirects the user to
+ * the given URL.
+ * @param url
+ */
+export function redirectToGet(url: string): ViewResponseFactory {
+    return view('@extollo:redirect', { redirectUrl: url })
+}
+
 /**
  * HTTP response factory that uses the ViewEngine service to render a view
  * and send it as HTML.