Authenticate Symfony2 REST API with Google Account - api

Question

I'm working with Symfony2 and FOSOauthServerBundle in a REST API. I would wish that some user could log in by a client app using their Google Account, for instance.
From my REST server, by web, I can log in with my Google Account (using HWIOauthBundle), but I need to send to the client app an access_token (like FOSOauthServerBundle does).
I'm interested on persist the access_token that Google send to me in my data base and at the same time, send to the client app the json message {'access_token': 'XMekfmns.... } with Google's (and now my REST API too) access_token.
I don't know if my approach is right. Any ideas?
(sorry for my english ;-) )
Thank you very much

Answer 1

This is my (dirty) solution, but I hope people understand what I want to.
From the client side, the user send the request to get authorization from the google account (I'm using Symfony2 with HWIOauthBundle)
http://myserver.com/connect/google
This present the Google login form. The user fill the form and submit it. If success exists, there will be a redirect to myserver.com where the user will logged.
I catch the event onAuthenticationSuccess ...
<?php
namespace App\Bundle\Handler;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface;
use Symfony\Component\HttpFoundation\Request,
Symfony\Component\HttpFoundation\RedirectResponse,
Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\Routing\Router;
class SecurityHandler implements AuthenticationSuccessHandlerInterface
{
private $router;
public function __construct(Router $router)
{
$this->router = $router;
}
public function onAuthenticationSuccess(Request $request, TokenInterface $token)
{
$user = $token->getUser();
return new RedirectResponse($this->router->generate('api_get_token', array(
'clientRandomId' => '5ewv02jcis08wsgggk4wow4so0gokco0g4s8kkoc4so4s0gw4c'
)));
}
#clientRandomId value is an existing value in the table (entity) Client ...
#... in the database.
}
... to redirect to a Controller where it will generate an access_token and refresh_token, where they will be saved in the database. At the end, it will be sent a json response to the user, like FOSOauthServerBundle does.
<?php
namespace App\Bundle\Controller\Api;
use Symfony\Bundle\FrameworkBundle\Controller\Controller,
Symfony\Component\HttpFoundation\JsonResponse,
Symfony\Component\Security\Core\Exception\AccessDeniedException;
use FOS\RestBundle\Controller\FOSRestController,
FOS\RestBundle\Controller\Annotations\Route,
FOS\RestBundle\Controller\Annotations\NamePrefix,
FOS\RestBundle\Controller\Annotations\Prefix;
use FOS\RestBundle\Routing\ClassResourceInterface;
use App\Bundle\Entity\AccessToken;
use App\Bundle\Entity\RefreshToken;
class TokenController extends FOSRestController implements ClassResourceInterface {
#this method has the route named 'api_get_token'
public function getAction($clientRandomId)
{
$user = $this->get('security.context')->getToken()->getUser();
#control if user exist ...
#We force the loggout
$this->container->get('security.context')->setToken(null);
$em = $this->get('doctrine')->getManager();
$client = $em->getRepository('AppBundle:Client')->findOneBy(array('randomId' => $clientRandomId));
#control if client exist ...
$expiresAt = time() + 3600;
$accessToken = new AccessToken;
$accessToken->setClient($client);
$accessToken->setToken('access_token'); #This is only an example
$accessToken->setExpiresAt($expiresAt);
$accessToken->setUser($user);
$refreshToken = new RefreshToken;
$refreshToken->setClient($client);
$refreshToken->setToken('refresh_token'); #This is only an example
$refreshToken->setExpiresAt($expiresAt);
$refreshToken->setUser($user);
$em->persist($accessToken);
$em->persist($refreshToken);
$em->flush();
$jsonData = array(
'access_token' => $accessToken->getToken(),
'expires_in' => 3600,
'token_type' => 'bearer',
'scope' => null,
'refresh_token' => $refreshToken->getToken()
);
$response = new JsonResponse($jsonData);
return $response;
}}
I know this is not the best solution but maybe it guide you to a better solution.