Question

How do you unregister or disable a controller plugin from within a controller action.

class IndexController
{
    public function indexAction()
    {
        // disable plugin here
        // do some other stuff
    }
}

Answer 1

First get an instance of the front controller, then an instance of the plugin by a given name (class name), and lastly call the unregisterPlugin() method.

public function disableSomePluign()
{
    $frontController = $this->getFrontController();
    $plugin = $frontController->getPlugin('Some_Plugin');
    $frontController->unregisterPlugin($plugin);
}