duan4369 2017-09-18 08:45
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Symfony - 预登录事件监听器

I need to do some actions before the login process/at the beginning of the login process. Is there any pre login event or how can I implement it?

I'am using Symfony3 and I have a form login and OAuth login (HWIOAuthBundle).

I tried this, but it doesn't work with OAuth login. Or how can I implement it for OAuth login too?

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  • douan4106 2017-09-18 09:28
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    Generally all login stuff in symfony is executed by a listener to the kernel.request event, mostly within the Firewall listener of the Symfony security component. I did not use the HWIOAuthBundle bundle yet, but it seems it also just uses the Symfony Security component.

    If you just want to execute certain actions before the login/authentication happens, you only need to register an event listener to the kernel.request with a higher priority than the Firewall listener.

    You can do that as described in the Symfony docs (Events and Event Listeners). First create your Event listener class in src/AppBundle/EventListener/YourListener.php:

    namespace AppBundle\EventListener;
    
    use Symfony\Component\HttpKernel\Event\GetResponseEvent;
    
    class YourListener
    {
        public function onKernelRequest(GetResponseEvent $event)
        {
            // do stuff
        }
    }
    

    Then register your service in your app/config/services.yml file:

    services:
        AppBundle\EventListener\YourListener:
            tags:
                - { name: kernel.event_listener, event: kernel.request, priority: 9 }
    

    According to this page the Firewall has a priority of 8. So the priority of your event listener should be higher than that to be executed before the login happens (I used 9 in the example above).

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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