Silex framework : Create an UserProvider/PasswordEncoder/User - php

Question

I use the framework Silex, especially SecurityServiceProvider.
I have to create my own User class (because my salt is the username => with the default class the salt is null) :
<?php
namespace Adh\Security;
use Symfony\Component\Security\Core\User\AdvancedUserInterface;
class User implements AdvancedUserInterface {
private $username;
private $password;
public function __construct($username, $password)
{
$this->username = $username;
$this->password = $password;
}
public function getRoles()
{
return array();
}
public function getPassword()
{
return $this->password;
}
public function getSalt()
{
return $this->username;
}
...
}
Until this, no problem. Now, I have to create a custom UserProvider to retrieve my user from MySQL :
<?php
namespace Adh\Security;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\User;
use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
use Doctrine\DBAL\Connection;
class UserProvider implements UserProviderInterface
{
private $conn;
public function __construct(Connection $conn)
{
$this->conn = $conn;
}
public function loadUserByUsername($username)
{
$stmt = $this->conn->executeQuery('SELECT * FROM account WHERE username like ?', array($username));
if (!$user = $stmt->fetch()) {
throw new UsernameNotFoundException(sprintf('Le nom d\'utilisateur "%s" n\'existe pas', $username));
}
return new \Adh\Security\User($user['username'], $user['sha_pass_hash']);
}
...
}
And to register the security provider :
$app->register(new Silex\Provider\SecurityServiceProvider(), array(
'security.firewalls' => array(
'user' => array(
'pattern' => '^/user',
'form' => array('login_path' => '/connexion', 'check_path' => '/user'),
'users' => $app->share(function () use ($app) {
return new Adh\Security\UserProvider($app['db']);
})
)
)
));
$app['security.encoder_factory'] = $app->share(function ($app) {
return new EncoderFactory(
array('Adh\Security\User' => new Adh\Security\PasswordEncoder())
);
});
It works, except when the authentification is positive (the username and password match) I've this exception :
RuntimeException: There is no user provider for user
"Adh\Security\User".
How to set my UserProvider for my User class ?
Thank's

Answer 1

I found the solution. To create my provider I followed this example : http://silex.sensiolabs.org/doc/providers/security.html#defining-a-custom-user-provider
In the refreshUser method:
if (!$user instanceof User) {
throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', get_class($user)));
}
This is correct for the default User class: I have my own User class so the exception is raised.
The condition becomes :
if (!$user instanceof \Adh\Security\User) {
throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', get_class($user)));
}

Answer 2

Your function
loadUserByUsername()
does not return any role. By default a Symfony\Component\Security\Core\User\User record is returned with the roles of the user as third parameter. At least any user must have one role.
Sample:
use Symfony\Component\Security\Core\User\User;
public function loadUserByUsername($username)
{
$frameworkUser = new FrameworkUser($this->app);
if (false === ($user = $frameworkUser->selectUser($username))) {
throw new UsernameNotFoundException(sprintf('Username "%s" does not exist.', $username));
}
return new User($user['username'], $user['password'], $user['roles'], true, true, true, true);
}