Wkhtmltopdf重定向到symfony2中的登录页面

Question

I'm using wkhtmltopdf to generate a pdf report in my application,but when the pdf is generated,i got the login page in the pdf.

this is my Action:

public function exportPdfAction($id = 0)
{
    $em = $this->container->get('doctrine')->getEntityManager();
    $id = $this->get('request')->get($this->admin->getIdParameter());
    $object = $this->admin->getObject($id);


    if (!$object) {
        throw new NotFoundHttpException(sprintf('unable to find the object with id : %s', $id));
    }

    if (false === $this->admin->isGranted('VIEW', $object)) {
        throw new AccessDeniedException();
    }

    $pageUrl = $this->generateUrl('admin_rh_leave_conge_show', array('id'=>$id), true); // use absolute path!

     return new Response(
        $this->get('knp_snappy.pdf')->getOutput($pageUrl),
        200,
        array(
            'Content-Type'          => 'application/pdf',
            'Content-Disposition'   => 'attachment; filename="Fiche_conge.pdf"'

        )
    );   
}

how can i resolve the problem ?

Answer 1

this is a bit late, but I had the exact same problem, and found a solution for it: You can pass in options as second parameter in the getOutput() -method. One of these options is cookie :

use Symfony\Component\HttpFoundation\Response;
...

$session = $this->get('session');
$session->save();
session_write_close();

return new Response(
    $this->get('knp_snappy.pdf')->getOutput(
        $pageUrl,
        array('cookie' => array($session->getName() => $session->getId()))
    ),
    200,
    array(
        'Content-Type' => 'application/pdf',
    )
);

See http://wkhtmltopdf.org/ and https://github.com/KnpLabs/KnpSnappyBundle/issues/42 for details.

Answer 2

I had a similar problem with that bundle. In my case was the issue that the script was running from the command line. And the problem was that there the executed user was not authenticated in the sonata admin.

So be sure your calling the pdf is logged in user and don't switch between production and development environment that will lost the session and you have to relogin.

So check if the script with is calling the snappy pdf generation is correctly authenticated and has the sonata_admin_role (access to the sonata admin backend).

Hope that helps.

Answer 3

2021: I still had the exact same problem but found the accepted solution of Iris Schaffer a little bit dirty. So here is another way. You can just generate the html in the controller you're in.

Instead of using ->getOutput() we use ->getOutputFromHtml()

/**
 * @Route("/dossiers/{dossier}/work-order/download", name="download_work_order")
 * @Security("is_granted('DOWNLOAD_WORK_ORDER', dossier)")
 *
 * @param Dossier $dossier
 * @return Response
 */
public function generateWorkOrderPdfAction(Dossier $dossier): Response
{
    /**
     * Since we are a valid logged-in user in this controller we generate everything in advance
     * So wkhtmltopdf does not have login issues
     */
    $html = $this->forward('PlanningBundle\Controller\WorkOrderController::generateWorkOrderHTMLAction', [
        'dossier' => $dossier,
    ])->getContent();

    $options = [
        'footer-html' => $this->renderView('@Dossier/PDF/footer.html.twig', [
            'dossier' => $dossier,
        ]),
    ];

    return new Response(
        $this->get('knp_snappy.pdf')->getOutputFromHtml($html, $options),
        200,
        [
            'Content-Type' => 'application/pdf',
            'Content-Disposition' => 'attachment; filename="work-order-' . $dossier->getName() . '.pdf"',
        ]
    );
}