symfony - 加载 Web 调试工具栏时出错

Question

我正在 Symfony 3.4 项目中工作，并且一直面临一个奇怪的问题。 Web 调试工具栏无法加载，而是显示错误“加载 Web 调试工具栏时发生错误。打开 Web 分析器。”这是屏幕截图


当我点击 Open the web profiler 链接时，它会将我带到另一个异常(exception)页面。这是它的截图



因此，经过数小时的调试后，我发现问题出在
自定义监听器。它在我的 services.yml 中注册如下:

services:
    language.kernel_request_listener:
        class: TraceBundle\Listeners\LanguageListener
        arguments:
            - "@service_container"
        tags:
            - { name: kernel.event_listener, event: kernel.request, method: setLocale }

这是 LanguageListener.php:

<?php

namespace TraceBundle\Listeners;

use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\HttpKernelInterface;


class LanguageListener{

    private $token_storage;

    private $securityContext;

    private $container;

    public function __construct(ContainerInterface $containerInterface)
    {
        $this->container = $containerInterface;
        $this->securityContext = $this->container->get('security.authorization_checker');
        $this->token_storage = $this->container->get('security.token_storage');
    }

    public function setLocale(GetResponseEvent $event)
    {


        if (HttpKernelInterface::MASTER_REQUEST !== $event->getRequestType()) {
            return;
        }

            if ($this->securityContext->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
            $user = $this->token_storage->getToken()->getUser();
            $userLocale = $user->getTenant()->getLanguage()->getValue();
            $tenantid = $this->container->get('tenant_manager')->getTenantId($user);
            $request = $event->getRequest();
            $request->attributes->set('tenantid', $tenantid);
            if ($userLocale) {
                $request->setLocale($userLocale);
                $translator = $this->container->get('translator');
                $translator->setLocale($userLocale);
            }
        }
    }
} 

现在，当我评论以下几行时:

if ($this->securityContext->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
            $user = $this->token_storage->getToken()->getUser();
            $userLocale = $user->getTenant()->getLanguage()->getValue();
            $tenantid = $this->container->get('tenant_manager')->getTenantId($user);
            $request = $event->getRequest();
            $request->attributes->set('tenantid', $tenantid);
            if ($userLocale) {
                $request->setLocale($userLocale);
                $translator = $this->container->get('translator');
                $translator->setLocale($userLocale);
            }

错误消失，分析器按预期加载。

我试过 var_dump()在每一行之后，所有值似乎都很好。服务tenant_manager 和翻译服务都可以正常工作。我在这里缺少什么？如果您需要更多代码，请告诉我。

提前致谢!

编辑:根据这里的要求是我的 security.yml:

security:

    # https://symfony.com/doc/current/security.html#b-configuring-how-users-are-loaded
    providers:
        in_memory:
            memory: ~
        fos_userbundle:
            id: fos_user.user_provider.username  

    firewalls:
        # disables authentication for assets and the profiler, adapt it according to your needs
        dev:
            pattern: ^/(_(profiler|wdt)|css|images|js)/
            security: false
        main:
            pattern: ^/
            form_login:
                success_handler: authentication.handler.login_success_handler 
                provider: fos_userbundle
                csrf_token_generator: security.csrf.token_manager

#            logout:       true
            logout: 
                path:   /logout
                target: /login

            anonymous:    true        

        js_router:
            pattern: ^/(js\/routing)
            security: false

    encoders:
        FOS\UserBundle\Model\UserInterface: bcrypt

    role_hierarchy:
        ROLE_ADMIN:       ROLE_USER
        ROLE_SUPER_ADMIN: ROLE_ADMIN


    access_control:
        - { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/dashboard, role: ROLE_ADMIN }
        - { path: ^/campaigns, role: ROLE_ADMIN }
        - { path: ^/dashboard, role: ROLE_ADMIN }
        - { path: ^/lives, role: ROLE_ADMIN }
        - { path: ^/colleagues, role: ROLE_ADMIN }
        - { path: ^/addcolleague, role: ROLE_ADMIN }
        - { path: ^/adminpage, role: ROLE_ADMIN }
        - { path: ^/test, role: ROLE_ADMIN }
        - { path: ^/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/admin/, role: ROLE_ADMIN }        

Answer 1

我在使用带有 TokenStorageInterface 的自定义监听器时遇到了完全相同的问题。

这是我的监听器代码的缩小版本:

class DatabaseUserAuthenticationListener {
    private $authToken;

    public function __construct(TokenStorageInterface $tokenStorage) {
        if ($tokenStorage->getToken())  {
            $this->authToken = $tokenStorage->getToken();
        }
    }

    public function onKernelController(FilterControllerEvent $event)  {
        if ($this->authToken)  {
            $this->authToken->setAttribute("blah", true);
        }
    }
}

就我而言，违规行是 $this->authToken->setAttribute("blah", true); . $this->authToken最终是 null当 _wdt路由被调用(因为它们没有用户上下文)。至少这是我的理论。

@Pavel 是正确的，因为 Symfony 在请求之间将 token 设置为 null，尽管我认为它不是 security: false就是这样做的。

在使用它之前检查您的 token 是否存在并且不为空或空( if ($this->authToken) {...} )解决了问题(至少对我而言)。

@utkarsh2k2，我确定你已经解决了你的问题......如果没有，你可以尝试检查 $this->token_storage->getToken()打电话之前里面有东西 ->getUser() .