Symfony2 Exception Response. Replace 404 status code with 200

Question

I have a 404 handler in symfony2 which is an EventListener.

With certain 404's, I do a redirect, which works great. To the browser, no 404 is thrown.

new RedirectResponse( $newURL );

That line basically replaces the 404 status code with a 200.

In other cases though, I want to return some content instead, not a 404 message, but some replacement data. Something like this:

$response = new Response( $returnJSONMessage );
$response->headers->set( 'Content-Type', 'application/json' );
$response->setStatusCode(200);

Code wise, this is fine, but it doesn't stop the 404 being returned. I am guessing because it sits within this:

$event->setResponse( $theResponse );

Which is of type GetResponseForExceptionEvent.

What do I need to call, to get it to return my data as a 200 instead of a 404. In the same way that RedirectResponse seems to. I tried:

$event->stopPropagation();

But it is a bit after the fact. It seems anything within $event->setResponse which isn't a RedirectResponse gets labelled a 404 in this case.

Any ideas?

Adi · Accepted Answer · 2013-08-22 21:05:15Z

15

Finally found what I was looking for via a Symfony GitHub pull;

$response->headers->set( 'X-Status-Code', 200 );

Allows you to override the exception status code.

$response->setStatusCode(200);

Will not work.

Request here: https://github.com/symfony/symfony/pull/5043

Pull here: https://github.com/symfony/symfony/commit/118a5d2274dc7d6701c3e2a758b820cd49ebaf3b

answered Aug 22, 2013 at 21:05

Adi

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Zavra · Accepted Answer · 2020-05-11 16:07:32Z

5

The suggestions provided here didn't work for me.

And then I found out why - X-Status-Code is deprecated since Symfony 3.3.

What worked for me was using $event->allowCustomResponseCode();

$exception = $event->getException();
$response = new Response('...', 404);

// ...

$event->allowCustomResponseCode();
$event->setResponse($response);

Here is a link about this on Symfony website

answered May 11, 2020 at 16:07

Zavra

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Comments

Koichi Higashi · Accepted Answer · 2014-10-23 02:12:16Z

2

I resolved this issue following code.

use Symfony\Component\HttpKernel\Exception\HttpException;
...
$event->setException(new HttpException(200));

answered Oct 23, 2014 at 2:12

Koichi Higashi

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pbonnefoi · Accepted Answer · 2020-01-16 13:59:32Z

In my case, after trying multiple solutions, I used the Event Subscriber from Symfony and declared the event Kernel Response :

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $events[KernelEvents::RESPONSE][] = ['onKernelResponse', 0];
    return $events;
  }

And then, in the function onKernelResponse, I put my code to return 200 instead of 404 in specific cases :

  /**
   * @param FilterResponseEvent $event
   */
  public function onKernelResponse(FilterResponseEvent $event) {
    // Custom code to check which URL needs to return 200.
    $check_url_200 = $this->myOwnService->checkURL();
    if ($check_url_200) {
      $response = $event->getResponse();
      $status_code = $response->getStatusCode() == Response::HTTP_NOT_FOUND ? Response::HTTP_OK : $response->getStatusCode();
      $response->setStatusCode($status_code);
      $event->setResponse($response);
    }
  }

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