Example Voter

PlanActiveVoter.php

<?php

/**
 * This file is part of the X project.
 *
 * (c) Infinite Networks Pty Ltd <http://www.infinite.net.au>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace X\AppBundle\Security\Voter;

use Entity\User;
use JMS\DiExtraBundle\Annotation as DI;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;

/**
 * Tests is a plan is active or not.
 *
 * @DI\Service("x_app.security.plan_active_voter")
 * @DI\Tag("security.voter")
 */
class PlanActiveVoter implements VoterInterface
{
    const ATTRIBUTE_ACTIVE = 'PLAN_ACTIVE';

    public function supportsAttribute($attribute)
    {
        return static::ATTRIBUTE_ACTIVE === $attribute;
    }

    public function supportsClass($class)
    {
        return $class instanceof User or $class instanceof Request;
    }

    /**
     * @param TokenInterface $token
     * @param \Entity\User $user
     * @param array $attributes
     * @return int
     */
    public function vote(TokenInterface $token, $user, array $attributes)
    {
        if (!$this->supportsClass($user)) {
            return VoterInterface::ACCESS_ABSTAIN;
        }

        if (!$user instanceof User) {
            $user = $token->getUser();

            if (!$user instanceof User) {
                return VoterInterface::ACCESS_ABSTAIN;
            }
        }

        foreach ($attributes as $attribute) {
            if (!$this->supportsAttribute($attribute)) {
                continue;
            }

            return $user->isServiceActive() ?
                VoterInterface::ACCESS_GRANTED :
                VoterInterface::ACCESS_DENIED;
        }

        return VoterInterface::ACCESS_ABSTAIN;
    }
}