I want to restrict some unwanted users to access the site. So I am redirecting them to 404 Page but my logic is going to an infinite loop as the event I am calling from controller_action_predispatch is called several times and I am not able to find the right one.

My Logic

namespace Namespace\Module\Observer;

class RedirectUsers implements \Magento\Framework\Event\ObserverInterface {

    protected $_myHelper;

    public function __construct(
        \Namespace\Module\Helper\Data $myHelper,
    ) {
        $this->_myHelper = $myHelper;

    public function execute(\Magento\Framework\Event\Observer $observer) {
        if(in_array($currentUser, $restrictedUsers)){
            $url = $this->_myHelper->getNoRoutePageUrl();
            header('Location: ' . $url);

My event.xml

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="controller_action_predispatch">
        <observer instance="Namespace\Module\Observer\RedirectIp" name="namespace_module_observer_controller_actionpredispatch_controller_action_predispatch"/>

Below one you can follow

namespace Custom\Module\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\App\Request\DataPersistorInterface;
use Magento\Framework\App\ObjectManager;

class YourObserver implements ObserverInterface {

     * @var \Magento\Framework\App\Response\RedirectInterface
    protected $redirect;

    public function __construct(\Magento\Framework\App\Response\RedirectInterface $redirect) {
        $this->redirect = $redirect;

    public function execute(\Magento\Framework\Event\Observer $observer) {

        $actionName = $observer->getEvent()->getRequest()->getFullActionName();
        $controller = $observer->getControllerAction();

        $this->redirect->redirect($controller->getResponse(), $this->redirect->getRefererUrl());
  • Can you explain what is it doing or how I should implement this – Priyank Oct 14 '16 at 10:05
  • Copy this code & put ur things in it Replace $this->redirect->getRefererUrl() with Ur URL which you want to redirect – Jackson Oct 14 '16 at 10:15
  • I hope you understood my question. I am not asking how I should redirect. I am asking my redirection is going to infinite loop as the event get calls again and again. I tried your example and I am getting the same result – Priyank Oct 14 '16 at 10:22
  • Try to remove ur condition & Check. Please also give Ur events.xml file as well – Jackson Oct 14 '16 at 10:32
  • event xml added – Priyank Oct 14 '16 at 10:37

set obeject :

//@var \Magento\Backend\Model\View\Result\Redirect $resultRedirect 
    $resultRedirect = $this->resultRedirectFactory->create();

then just use setPath() method

return $resultRedirect->setPath('*/*/');

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