I am new to the FriendsOfSymfony UserBundle and everything has been going well until I try to have a user logout. The login works perfectly and I am using the basic configuration that I have seen on many sites. I only have 2 users that need to login. The problem occurs when the user clicks on the logout URL. In this case /logout. I receve a generic server error in the browser and the error_log shows "Premature end of script headers: app_dev.php". If I hit refresh on the error page it goes back to my home page and I am logged out successfully.
Here is my firewall section in security.yml:
firewalls:
main:
pattern: ^/
form_login:
provider: fos_userbundle
check_path: fos_user_security_check
csrf_provider: form.csrf_provider
logout: true
anonymous: true
Here is the access_control section of security.yml:
access_control:
- { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY, requires_channel:https }
- { path: ^/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/logout, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/admin/, role: ROLE_ADMIN }
Here is the fos_user section in config.yml
fos_user:
db_driver: orm
firewall_name: main
user_class: Wielding\BassBundle\Entity\User
I am generating the logout url in my twig form with:
<a href="{{ path('fos_user_security_logout') }}">logout</a>
If I am not logged into the site and I go manually to the logout url I get redirected back to the default index page without any error. If I am logged in and manually type in the logout url I get the server error. I have tried so many variations of config changes I can't even list them here. They all failed.
I even tried to write my own logout by invalidating the session in the controller and that generates the same error.
My only clue so far is an entry in dev.log:
[2013-07-27 14:51:26] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\ContextErrorException: "Warning: SessionHandler::write(): Parent session handler is not open in /home/dev2/app/cache/dev/classes.php line 407" at /home/dev2/app/cache/dev/classes.php line 407 {"exception":"[object] (Symfony\\Component\\Debug\\Exception\\ContextErrorException: Warning: SessionHandler::write(): Parent session handler is not open in /home/dev2/app/cache/dev/classes.php line 407 at /home/dev2/app/cache/dev/classes.php:407)"} []
Searching on this initially indicated that this was not something to worry about but I am out of other ideas. This is my final task in getting security working and its freaking me out.
I will gladly provide any other information needed to help solve this really annoying problem. Thanks in advance for any assistance.
It's error of PHP. You need to upgrade php to minium 5.4.11.
Reference: