How can I redirect to previous page in zend framew

问题:

For these situations, I want to auto redirect back to the pages from where I made the request:

1. After finishing any action (CRUD etc) - Here I think we need to redirect to 'HTTP_REFERER'
2. While surfing or shopping, if login required, so after finishing authentication process, it should redirect back to the same page

A different situation (which is not 'redirect to previous page'):

• Pass a redirect URL (landing page address) in query, for eg: If I send a (external)/URL (ofc encoded) in as GET query parameter (or route part), after login, it should redirect me to this URL

I have already searched over net for this and found some solutions but they are not according to Zend Framework 2. I want all this to be done in zf2 way.

Thanks for any help!

回答1:

Well, for the CRUD stuff, I'd simply redirect to the routes of the previous action, usually something like admin-index, administrate or whatever. I don't really see why you would need the HTTP_REFERER in that case. If however you still want to access the HTTP_REFERER it's as simple as this:

//SomeController.php
$redirectUrl = $this->getRequest()->getHeader('HTTP_REFERER', $defaultValue);

For more information see Zend\Http\Request

A Redirect would be done using the redirect() of the Zend\Mvc\Controller\AbstractActionController

$this->redirect()->toUrl($redirectUrl); //or using a route:
$this->redirect()->toRoute('some/route');

To see some more live examples of your use-cases, i suggest you check out some of the Modules that pretty much fit your use-cases. Probably the most fitting ones here would be Zf-Commons\ZfcUser and bjyoungblood\BjyAuthorize. For each of those examples i have linked relevant code-samples that may shed some insight to your needs.

回答2:

This worked for me:

$url = $this->getRequest()->getHeader('Referer')->getUri();
$this->redirect()->toUrl($url);

回答3:

I think referer field is only set when you click on link and let yourself to be redirected to deserved page. Take for example http://www.whatismyreferer.com/. When you google it and click on the link, which takes you to this site, the referer will be the google. But if you copy and paste this url to your web browser, referer page will be undefined. Am i wrong?

回答4:

Here is a cool trick.

Create a trait first:

<?php

namespace Application\Controller\Plugin;

use Zend\Session;

trait RefererRedirect
{
    /**
     * @var Session\Container
     */
    private $sessionContainer;

    /**
     * @param Session\Container $sessionContainer
     */
    public function setSessionContainer(Session\Container $sessionContainer)
    {
        $this->sessionContainer = $sessionContainer;
    }

    protected function clearReferer()
    {
        $this->sessionContainer->offsetUnset('referer');
    }

    protected function registerReferer()
    {
        if (!$this->sessionContainer->offsetExists('referer')) {
            $this->sessionContainer->offsetSet('referer', $this->getRequest()->getHeader('Referer')->uri()->getPath());
        }
    }

    protected function redirectToRefererOrDefaultRoute($defaultRoute, $defaultParams = [])
    {
        if ($this->sessionContainer->offsetExists('referer')) {
            $url = $this->sessionContainer->offsetGet('referer');
            $this->clearReferer();

            return $this->redirect()->toUrl($url);
        }

        return $this->redirect()->toRoute($defaultRoute, $defaultParams);
    }
}

Then an interface:

<?php

namespace Application;

use Zend\Session;

interface RefererAwareInterface
{
    /**
     * @param Session\Container $sessionContainer
     */
    public function setSessionContainer(Session\Container $sessionContainer);
}

Then use the interface to inject SessionContainer:

<?php

namespace Application;

class Module
{
    public function getControllerConfig()
    {
        return [
            'factories' => [
            ],
            'initializers' => array(
                function ($instance, $sm) {
                    if ($instance instanceof RefererAwareInterface) {
                        $instance->setSessionContainer(new Session\Container('Referer'));
                    }
                }
            )
        ];
    }
}

Then in your controller:

<?php

namespace Auth\Controller;

class UsersController extends AbstractActionController implements RefererAwareInterface
{
    use RefererRedirect;

    public function indexAction()
    {
        $this->clearReferer();

        // do stuff
    }

    public function addAction()
    {
        $this->registerReferer();

        // do stuff

        return $this->redirectToRefererOrDefaultRoute('auth/users');
    }

    public function backAction()
    {
        return $this->redirectToRefererOrDefaultRoute('auth/users');
    }
}

回答5:

Neighter of the above worked for me, but this:

$url = $this->getRequest()->getHeaders('cookie')->original_url;
$this->redirect()->toUrl($url);

[I would appreciate though, if somebody cleared me up, why the 'referer way' does not work for me! :) Thanks!]

回答6:

just wanted to share a snippet from my final code that handles if the user comes from another page:

$referer = $this->getRequest()->getHeader('Referer');
if ($referer) {
    $refererUrl = $referer->uri()->getPath(); // referer url
    $refererHost = $referer->uri()->getHost(); // referer host
    $host = $this->getRequest()->getUri()->getHost(); // current host

    // only redirect to previous page if request comes from same host
    if ($refererUrl && ($refererHost == $host)) {
        return $this->redirect()->toUrl($refererUrl);
    }
}
// redirect to home if no referer or from another page
return $this->redirect()->toRoute('home');