TYPO3.Flow

FLOW3 already comes with an Authentication Controller that even supports redirection to the intercepted request after successful authentication (if a WebRedirect EntryPoint was configured).

We should provide an abstract base class that developers can extend from in their own packages.
The API could be s.th. like

 1abstract class AbstractAuthenticationController extends \TYPO3\FLOW3\Mvc\Controller\ActionController {
 2
 3public function indexAction();
 4
 5final public function authenticateAction();
 6
 7public function logoutAction();
 8
 9abstract protected function onSuccessfulAuthentication(\TYPO3\FLOW3\Mvc\ActionRequest $interceptedRequest);
10
11abstract protected function onErroneousAuthentication();
12
13}