Programmatically login User on Symfony2

Question

Version: Symfony2.3

There is many link that shows how to login programmatically on Symfony or Changing user Roles dynamically on login. I referred some sites and got the code working.

Below the Process,

User login with username and password
User will be redirected to Group list page
User will select one group
We will change the Role mapped with the selected Group dynamically and redirect user

Every thing works fine.

But problem is: I am using below code to get user id in all Pages, is stop working after changing "Token"

$id = $this->getUser()->getId();

I have a function with dynamically change Current User role based on different Groups

// Save the original token in the session 
$originalToken = $this->get("security.context")->getToken();
$this->getRequest()->getSession()->set('original.security.token', $originalToken);

// Create my new custom token (loading the roles of the user)
$token = new \Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken($this->getUser()->getUsername(), null, "secured_area", array($dynamic_rolename));

// Update the security context with the new token
$this->get("security.context")->setToken($token);
$this->get('session')->set('security_secured_area',serialize($token));

The line $this->getUser()->getId() not working after the above function executed.

Error: FatalErrorException: Error: Call to a member function getId() on a non-object

Security.yml

security:
encoders:
    Core\Bundle\Entity\login:
        algorithm:        sha1
        encode_as_base64: false
        iterations:       1

role_hierarchy:
    ROLE_ADMIN:       ROLE_USER
    ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]

providers:
    administrators:
        entity: 
            class: Core\Bundle\Entity\login
            property: userName

firewalls:
    dev:
        pattern:  ^/(_(profiler|wdt)|css|images|js)/
        security: false

    login:
        pattern:  ^/login$
        security: false
        anonymous:  ~
        context: administration

    secured_area:
        pattern:    ^/
        context: administration
        form_login:
            check_path: _security_check
            login_path: /login
            default_target_path: /admin/setfacility
        logout:
            path:   _demo_logout
            target: _demo
        #anonymous: ~
        #http_basic:
        #    realm: "Secured Demo Area"

Why the getUser() object not been set?

acj89 · Accepted Answer · 2014-02-27 09:07:54Z

3

// Create my new custom token (loading the roles of the user)
$token = new \Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken($this->getUser()->getUsername(), null, "secured_area", array($dynamic_rolename));

In the above section you are using UsernamePasswordToken for the token creation.This accepts 4 parameters. The first parameter can be :

The username (like a nickname, email address, etc.), or a UserInterface instance or an object implementing a __toString method.

You are just passing the username . Pass the user entity instead so that you can have $this->getUser()->getId() working.

answered Feb 27, 2014 at 9:07

acj89

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1 Comment

sathish Over a year ago

Thanks, It solved my problem, nearly a day searching :)

klipach · Accepted Answer · 2014-02-27 08:52:50Z

1

You set a value into a session but didn't save it. So you should save it:

$this->get('session')->set('security_secured_area',serialize($token));
$this->get('session')->save(); // add this line

answered Feb 27, 2014 at 8:52

klipach

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Comments

Victor Bocharsky · Accepted Answer · 2014-02-27 08:50:59Z

0

Check first do you have a User object:

if ($this->getUser()) {
    $id = $this->getUser()->getId();
}

in your case the User object is NULL, so you try to call getId() method from NULL not from User object, that throw this error message.

answered Feb 27, 2014 at 8:50

Victor Bocharsky

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