Redirect to previous URL after admin login

Question

I want admin users to be redirected to the url they opened after login. They should get links to a custom module page in the admin area, like

https://magento.example/index.php/admin/admin_mycoolmodule/adminhtml_viewawesome/view/showpage/awesome/howmuch/9001/

Obviously, they will be redirected to the login page, unless they are already logged in.

How can I redirect them back to this page after login?

Secret keys in the URL are disabled and can stay that way.

Now they get the configured default page (default was Dashboard) instead.

Answer 1

As all the comments stated before, its not out of the box. Here are some hints on where/what you may need to adjust:

Mage_Admin_Model_User

public function getStartupPageUrl()
    {
        $startupPage = Mage::getStoreConfig(self::XML_PATH_STARTUP_PAGE);
        $aclResource = 'admin/' . $startupPage;
        if (Mage::getSingleton('admin/session')->isAllowed($aclResource)) {
            $nodePath = 'menu/' . join('/children/', explode('/', $startupPage)) . '/action';
            $url = (string)Mage::getSingleton('admin/config')->getAdminhtmlConfig()->getNode($nodePath);
            if ($url) {
                return $url;
            }
        }
        return $this->findFirstAvailableMenu();
    }

I have never tried it but this seems to be the method called from

Mage_Adminhtml_IndexController

and there is the IndexAction that calls the above function. Since this is the admin, doing a rewrite of the Model will probably be easier.

/**
 * Admin area entry point
 * Always redirects to the startup page url
 */
public function indexAction()
{
    $session = Mage::getSingleton('admin/session');
    $url = $session->getUser()->getStartupPageUrl();
    if ($session->isFirstPageAfterLogin()) {
        // retain the "first page after login" value in session (before redirect)
        $session->setIsFirstPageAfterLogin(true);
    }
    $this->_redirect($url);
}

So, modifying getStartupPageUrl() to have your URL seems very likely the best place to try this.

This is all theoretical, I have not tried it yet, but if you need a sample module, I can certainly run through this and provide it.

If every admin user will end up on the same page, its pretty easy to do, if there is some dynamic elements, it will be a bit harder to facilitate. Good Luck!

Answer 2

In Magento 1.9+ there is Mage_Admin_Model_Redirectpolicy. In here is getRedirectUrl:

 public function getRedirectUrl(Mage_Admin_Model_User $user, Zend_Controller_Request_Http $request = null, $alternativeUrl = null)
{
    if (empty($request)) {
        return;
    }
    $countRequiredParams = ($this->_urlModel->useSecretKey()
        && $request->getParam(Mage_Adminhtml_Model_Url::SECRET_KEY_PARAM_NAME)) ? 1 : 0;
    $countGetParams = count($request->getUserParams()) + count($request->getQuery());

    return ($countGetParams > $countRequiredParams) ?
        $this->_urlModel->getUrl($user->getStartupPageUrl()) : $alternativeUrl;
}
}

As described in the function comment: "Redirect to startup page after logging in if request contains any params (except security key)"

Changing that return statement to always return the $alternativeUrl, solves the problem. Having said this, I'm not sure what other problems it causes (specifically in regard to security). Would need to dig deeper.