所以经过相当多的研究,我找到了正确的方法来做到这一点。您需要使用入口点服务并在防火墙配置中定义它。
此方法不会与您在防火墙配置中指定的用于登录的默认页面设置相混淆。
编码
安全性.yml:
firewalls:
main:
entry_point: entry_point.user_login #or whatever you name your service
pattern: ^/
form_login:
# ...
src/Acme/UserBundle/config/services.yml
services:
entry_point.user_login:
class: Acme\UserBundle\Service\LoginEntryPoint
arguments: [ @router ] #I am going to use this for URL generation since I will be redirecting in my service
src/Acme/UserBundle/Service/LoginEntryPoint.php:
namespace Acme\UserBundle\Service;
use Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface,
Symfony\Component\Security\Core\Exception\AuthenticationException,
Symfony\Component\HttpFoundation\Request,
Symfony\Component\HttpFoundation\RedirectResponse;
/**
* When the user is not authenticated at all (i.e. when the security context has no token yet),
* the firewall's entry point will be called to start() the authentication process.
*/
class LoginEntryPoint implements AuthenticationEntryPointInterface
{
protected $router;
public function __construct($router)
{
$this->router = $router;
}
/*
* This method receives the current Request object and the exception by which the exception
* listener was triggered.
*
* The method should return a Response object
*/
public function start(Request $request, AuthenticationException $authException = null)
{
$session = $request->getSession();
// I am choosing to set a FlashBag message with my own custom message.
// Alternatively, you could use AuthenticationException's generic message
// by calling $authException->getMessage()
$session->getFlashBag()->add('warning', 'You must be logged in to access that page');
return new RedirectResponse($this->router->generate('login'));
}
}
login.html.twig:
{# bootstrap ready for your convenience ;] #}
{% if app.session.flashbag.has('warning') %}
{% for flashMessage in app.session.flashbag.get('warning') %}
<div class="alert alert-warning">
<button type="button" class="close" data-dismiss="alert">×</button>
{{ flashMessage }}
</div>
{% endfor %}
{% endif %}
资源: