Automatic Post-Registration User Authentication

Should user auto-login after registration?

If they just filled out the login information and you're not concerned about confirming that the email address is legit, then there shouldn't be a problem just logging them in directly.

However, you open yourself up to people/bots creating bogus accounts (at least ones without legitimate email addresses). If you're concerned about that (not sure it this is a public facing app or intranet, etc) then you should at least verify the email address by sending a link with a guid or some identifier that you can track back. Then you can let them log-in once they are confirmed.

You could also just tie it to their StackExchange/Facebook/OpenID/etc account and not make users fill out yet another form and worry about maintaining all that information.

Automatic post-registration user authentication

Symfony 4.0

This process hasn't changed from Symfony 3 to 4 but here is an example using the newly recommended AbstractController. Both the security.token_storage and the session services are registered in the parent getSubscribedServices method so you don't have to add those in your controller.

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use YourNameSpace\UserBundle\Entity\User;

class LoginController extends AbstractController{

    public function registerAction()
    {    
        $user = //Handle getting or creating the user entity likely with a posted form
        $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
        $this->container->get('security.token_storage')->setToken($token);
        $this->container->get('session')->set('_security_main', serialize($token));
        // The user is now logged in, you can redirect or do whatever.
    }

}

Symfony 2.6.x - Symfony 3.0.x

As of Symfony 2.6 security.context is deprecated in favor of security.token_storage. The controller can now simply be:

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use YourNameSpace\UserBundle\Entity\User;

class LoginController extends Controller{

    public function registerAction()
    {    
        $user = //Handle getting or creating the user entity likely with a posted form
        $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
        $this->get('security.token_storage')->setToken($token);
        $this->get('session')->set('_security_main', serialize($token));
    }

}

While this is deprecated you can still use security.context as it has been made to be backward compatible. Just be ready to update it for Symfony 3.

You can read more about the 2.6 changes for security here: https://github.com/symfony/symfony/blob/2.6/UPGRADE-2.6.md

Symfony 2.3.x

To accomplish this in Symfony 2.3 you can no longer just set the token in the security context. You also need to save the token to the session.

Assuming a security file with a firewall like:

// app/config/security.yml
security:
    firewalls:
        main:
            //firewall settings here

And a controller action similar to:

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use YourNameSpace\UserBundle\Entity\User;

class LoginController extends Controller{

    public function registerAction()
    {    
        $user = //Handle getting or creating the user entity likely with a posted form
        $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
        $this->get('security.context')->setToken($token);
        $this->get('session')->set('_security_main',serialize($token));
        //Now you can redirect where ever you need and the user will be logged in
    }

}

For the token creation you will want to create a UsernamePasswordToken. This accepts 4 parameters: User Entity, User Credentials, Firewall Name, User Roles. You don't need to provide the user credentials for the token to be valid.

I'm not 100% sure that setting the token on the security.context is necessary if you are just going to redirect right away. But it doesn't seem to hurt so I have left it.

Then the important part, setting the session variable. The variables naming convention is _security_ followed by your firewall name, in this case main making _security_main.

Login automatically after registration

Here is what I use:

private function loginUser(Request $request, UserInterface $user) : void
{
    $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
    $this->tokenStorage->setToken($token);

    $event = new InteractiveLoginEvent($request, $token);
    $this->eventDispatcher->dispatch(SecurityEvents::INTERACTIVE_LOGIN, $event);
}

You can either inject the token storage and event dispatcher or pull them from the container.

How do I auto login after registration in Django?

You can authenticate newly registered user like this

from django.contrib.auth import login, authenticate

if response.method == 'POST':
        form = RegisterForm(response.POST)
        if form.is_valid:
            form.save()
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password1')
            user =  authenticate(request,username=username, password=password)
            if user:
                login(request, user)
                return redirect..

How to make auto login after registration in laravel

You can try to login the user through his $user_id. So your code will be:

$user_id = $this->user_model->addUser($user);
$post = array('password' => $pass_for_auth, 'email' => $email);
Auth::loginUsingId($user_id);

You created the user so it returns an user_id, with the user_id you can login the user.

Hope this works!

More information at: https://laravel.com/docs/5.2/authentication#other-authentication-methods

Userfrosting: How to make user login automatically soon after registration

The best way to approach this is to take a cue from the password reset controller, which already does this (in this case, it automatically logs the user in after they've selected a new password).

So, add this to the bottom of the register method in AccountController:

// Log out any existing user, and create a new session
if (!$this->_app->user->isGuest()) {
    $this->_app->logout(true);
    // Restart session
    $this->_app->startSession();
}
// Auto-login the user
$this->_app->login($user);
$ms = $this->_app->alerts;
$ms->addMessageTranslated("success", "ACCOUNT_WELCOME", $this->_app->user->export());

You will also need to modify the AJAX callback in register.twig to redirect the user to the home page, instead of the login page:

window.location.replace(site['uri']['public']);

The user will then be automatically redirected to the landing page for their primary group after being logged in.

Automatic post-registration user authentication

Symfony 4.0

This process hasn't changed from Symfony 3 to 4 but here is an example using the newly recommended AbstractController. Both the security.token_storage and the session services are registered in the parent getSubscribedServices method so you don't have to add those in your controller.

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use YourNameSpace\UserBundle\Entity\User;

class LoginController extends AbstractController{

    public function registerAction()
    {    
        $user = //Handle getting or creating the user entity likely with a posted form
        $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
        $this->container->get('security.token_storage')->setToken($token);
        $this->container->get('session')->set('_security_main', serialize($token));
        // The user is now logged in, you can redirect or do whatever.
    }

}

Symfony 2.6.x - Symfony 3.0.x

As of Symfony 2.6 security.context is deprecated in favor of security.token_storage. The controller can now simply be:

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use YourNameSpace\UserBundle\Entity\User;

class LoginController extends Controller{

    public function registerAction()
    {    
        $user = //Handle getting or creating the user entity likely with a posted form
        $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
        $this->get('security.token_storage')->setToken($token);
        $this->get('session')->set('_security_main', serialize($token));
    }

}

While this is deprecated you can still use security.context as it has been made to be backward compatible. Just be ready to update it for Symfony 3.

You can read more about the 2.6 changes for security here: https://github.com/symfony/symfony/blob/2.6/UPGRADE-2.6.md

Symfony 2.3.x

To accomplish this in Symfony 2.3 you can no longer just set the token in the security context. You also need to save the token to the session.

Assuming a security file with a firewall like:

// app/config/security.yml
security:
    firewalls:
        main:
            //firewall settings here

And a controller action similar to:

use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use YourNameSpace\UserBundle\Entity\User;

class LoginController extends Controller{

    public function registerAction()
    {    
        $user = //Handle getting or creating the user entity likely with a posted form
        $token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
        $this->get('security.context')->setToken($token);
        $this->get('session')->set('_security_main',serialize($token));
        //Now you can redirect where ever you need and the user will be logged in
    }

}

For the token creation you will want to create a UsernamePasswordToken. This accepts 4 parameters: User Entity, User Credentials, Firewall Name, User Roles. You don't need to provide the user credentials for the token to be valid.

I'm not 100% sure that setting the token on the security.context is necessary if you are just going to redirect right away. But it doesn't seem to hurt so I have left it.

Then the important part, setting the session variable. The variables naming convention is _security_ followed by your firewall name, in this case main making _security_main.

How to auto login after registration

The only thing that you do to indicate that a user is logged in is set $_SESSION['SBUser'] = $user_id;

So in your registration script just do that as well.

<?php 
// new code
session_start();

$name = ((isset($_POST['name']))?sanitize($_POST['name']):'');
$email = ((isset($_POST['email']))?sanitize($_POST['email']):'');
$password = ((isset($_POST['password']))?sanitize($_POST['password']):'');
$confirm = ((isset($_POST['confirm']))?sanitize($_POST['confirm']):'');
$errors = array();
if($_POST){
    $emailQuery =$db->query("SELECT * FROM users1 WHERE email = '$email'");
    $emailCount = mysqli_num_rows($emailQuery);

    if($emailCount != 0){
        $errors[] = 'That email already exists in our database.';
    }

    $required = array('name', 'email', 'password', 'confirm');
    foreach($required as $f){
        if(empty($_POST[$f])){
            $errors[] = 'You must fill out all fields';
            break;
        }
    }
    if(strlen($password) < 6){
        $errors[] = 'Your password must be atleast 6 characterss';
    }
    if($password != $confirm){
        $errors[] = 'Your password do not match';
    }
    if(!filter_var($email,FILTER_VALIDATE_EMAIL)){
        $errors[] = 'You must enter a valid email';
    }
    if(!empty($errors)){
        echo display_errors($errors);
    }else{
        //add user to database
        $hashed = password_hash($password,PASSWORD_DEFAULT);
        $db->query("INSERT INTO users1 
                          (full_name,email,password) 
                    values('$name', '$email','$hashed')");

        // new code
        $_SESSION['SBUser'] = $db->insert_id;
    }
?> 

Django automatic login after user registration (2.1.4)

You already logged in after registration by this line

login(self.request, user)

You may need to redirect homepage. SO, you need to chnage this line

return super(SignUp, self).form_valid(form)

to

return HttpResponseRedirect(reverse('url_name'))

---

Related Topics