Cannot authenticate user in Symfony 6.2 using AccessToken

✔ Recommended Answer

It took me a while to figure out what the issue was. The above configuration is almost correct; however, a Symfony security component was missing a proper user provider to retrieve a User record even though it had the correct identifier (AccessToken).

So I had to do following steps to get the things working:

Step #1: Implement AccessTokenUserProvider class as follows:

<?php# src\Security\AccessTokenUserProvider.phpnamespace App\Security;use App\Entity\User;use App\Repository\UserRepository;use Symfony\Component\Security\Core\Exception\UserNotFoundException;use Symfony\Component\Security\Core\User\UserInterface;use Symfony\Component\Security\Core\User\UserProviderInterface;class AccessTokenUserProvider implements UserProviderInterface{    private $userRepository;    public function __construct(UserRepository $userRepository)    {        $this->userRepository = $userRepository;    }    public function loadUserByIdentifier(string $identifier): UserInterface    {        $user = $this->userRepository->findOneByAccessToken($identifier);        if (!$user) {            throw new UserNotFoundException();        }        return $user;    }    public function refreshUser(UserInterface $user)    {        return $this->loadUserByIdentifier($user->getUserIdentifier());    }    public function supportsClass($class)    {        return $class === User::class;    }}

Step #2: Register user provider in services.yaml

services:    # ....    app.access_token_user_provider:        class: App\Security\AccessTokenUserProvider        arguments: ['@App\Repository\UserRepository']

Step #3: and finally configure its usage in security.yaml:

security:    # ....    providers:        access_token_provider:            id: app.access_token_user_provider    # ....    firewalls:        api:            lazy: true            provider: access_token_provider            stateless: true            pattern: ^/api            access_token:                token_extractors: header                token_handler: App\Security\AccessTokenHandler

And this is it! Now Symfony uses our AccessTokenUserProvider to load corresponding user record from the database.

I hope this will save time for anyone who follows the same path! :)

Source: stackoverflow.com

Answered By: Denis O.

Method #2

To authenticate a user in Symfony 6.2 using an access token, you can follow these steps:

  1. Create a new authentication provider that will use the access token to authenticate the user. You can create a custom provider by implementing the AuthenticationProviderInterface.

  2. Register the new provider in the Symfony authentication system. You can do this in your security.yaml configuration file by adding the following:

yaml
security: providers: access_token_provider: id: App\Security\AccessTokenProvider

This assumes that your custom provider is located in the App\Security namespace and is named AccessTokenProvider.

  1. Create a new authentication listener that will listen for authentication events and use the access token to authenticate the user. You can create a custom listener by implementing the AuthenticationSuccessListenerInterface.

  2. Register the new listener in the Symfony authentication system. You can do this in your security.yaml configuration file by adding the following:

yaml
security: firewalls: main: guard: authenticators: - App\Security\AccessTokenAuthenticator

This assumes that your custom authenticator is located in the App\Security namespace and is named AccessTokenAuthenticator.

  1. In your controller, you can authenticate the user by calling the authenticate method on the Symfony security system:
php
use Symfony\Component\Security\Core\Security; class MyController extends AbstractController { public function myAction(Security $security) { $token = // retrieve access token $user = $security->authenticate(new AccessTokenToken($token)); } }

This assumes that you have retrieved the access token and created a new instance of AccessTokenToken with the token.

That should be it! With these steps, you should be able to authenticate a user using an access token in Symfony 6.2.

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