✏️ Editing: SecurityIdentityRetrievalStrategy.php Read Only

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Security\Acl\Domain;

use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;

use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Acl\Model\SecurityIdentityRetrievalStrategyInterface;
use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolver;
use Symfony\Component\Security\Core\Role\RoleHierarchyInterface;
use Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter;

/**
 * Strategy for retrieving security identities
 *
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 */
class SecurityIdentityRetrievalStrategy implements SecurityIdentityRetrievalStrategyInterface
{
    private $roleHierarchy;
    private $authenticationTrustResolver;

/**
     * Constructor
     *
     * @param RoleHierarchyInterface      $roleHierarchy
     * @param AuthenticationTrustResolver $authenticationTrustResolver
     */
    public function __construct(RoleHierarchyInterface $roleHierarchy, AuthenticationTrustResolver $authenticationTrustResolver)
    {
        $this->roleHierarchy = $roleHierarchy;
        $this->authenticationTrustResolver = $authenticationTrustResolver;
    }

/**
     * {@inheritDoc}
     */
    public function getSecurityIdentities(TokenInterface $token)
    {
        $sids = array();

// add user security identity
        if (!$token instanceof AnonymousToken) {
            try {
                $sids[] = UserSecurityIdentity::fromToken($token);
            } catch (\InvalidArgumentException $invalid) {
                // ignore, user has no user security identity
            }
        }

// add all reachable roles
        foreach ($this->roleHierarchy->getReachableRoles($token->getRoles()) as $role) {
            $sids[] = new RoleSecurityIdentity($role);
        }

// add built-in special roles
        if ($this->authenticationTrustResolver->isFullFledged($token)) {
            $sids[] = new RoleSecurityIdentity(AuthenticatedVoter::IS_AUTHENTICATED_FULLY);
            $sids[] = new RoleSecurityIdentity(AuthenticatedVoter::IS_AUTHENTICATED_REMEMBERED);
            $sids[] = new RoleSecurityIdentity(AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY);
        } elseif ($this->authenticationTrustResolver->isRememberMe($token)) {
            $sids[] = new RoleSecurityIdentity(AuthenticatedVoter::IS_AUTHENTICATED_REMEMBERED);
            $sids[] = new RoleSecurityIdentity(AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY);
        } elseif ($this->authenticationTrustResolver->isAnonymous($token)) {
            $sids[] = new RoleSecurityIdentity(AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY);
        }

return $sids;
    }
}

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