How can I write a user provider for HWIOAuthBundle - mongodb

Question

I want to write a login feature via social networks.
if the user is not logged it persists it into the database, if the user exists, log the user in.
What should I write into my provider?
Docs state :
The bundle needs a service that is able to load users based on the
user response of the oauth endpoint. If you have a custom service it
should implement the interface:
HWI\Bundle\OAuthBundle\Security\Core\User\OAuthAwareUserProviderInterface.
So this is what I wrote and then got stuck
<?php
namespace ng\MyBundle\Controller\Listeners;
use HWI\Bundle\OAuthBundle\Security\Core\User\OAuthAwareUserProviderInterface;
class OAuthUserProvider implements OAuthAwareUserProviderInterface
{
}
Can you tell me what are the methods That I should use ?
Can anybody give me a provider example not using FOSuserBundle ?
Thanks

Answer 1

If you open the OAuthAwareUserProviderInterface you can see it has only one method :
/**
* Loads the user by a given UserResponseInterface object.
*
* #param UserResponseInterface $response
*
* #return UserInterface
*
* #throws UsernameNotFoundException if the user is not found
*/
public function loadUserByOAuthUserResponse(UserResponseInterface $response);
Below there is an example on how to implement it, ofcourse in your case, you should call your entity managers, and access users the way you have designed it.
/**
* {#inheritdoc}
*/
public function loadUserByOAuthUserResponse(UserResponseInterface $response)
{
$username = $response->getUsername();
$user = $this->userManager->findUserBy(array($this->getProperty($response) => $username));
//when the user is registrating
if (null === $user) {
$service = $response->getResourceOwner()->getName();
$setter = 'set'.ucfirst($service);
$setter_id = $setter.'Id';
$setter_token = $setter.'AccessToken';
// create new user here
$user = $this->userManager->createUser();
$user->$setter_id($username);
$user->$setter_token($response->getAccessToken());
//I have set all requested data with the user's username
//modify here with relevant data
$user->setUsername($username);
$user->setEmail($username);
$user->setPassword($username);
$user->setEnabled(true);
$this->userManager->updateUser($user);
return $user;
}
//if user exists - go with the HWIOAuth way
$user = parent::loadUserByOAuthUserResponse($response);
$serviceName = $response->getResourceOwner()->getName();
$setter = 'set' . ucfirst($serviceName) . 'AccessToken';
//update access token
$user->$setter($response->getAccessToken());
return $user;
}