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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\View\Helper;
use Zend\Authentication\AuthenticationServiceInterface;
use Zend\View\Exception;
/**
* View helper plugin to fetch the authenticated identity.
*/
class Identity extends AbstractHelper
{
/**
* AuthenticationService instance
*
* @var AuthenticationServiceInterface
*/
protected $authenticationService;
/**
* Retrieve the current identity, if any.
*
* If none available, returns null.
*
* @throws Exception\RuntimeException
* @return mixed|null
*/
public function __invoke()
{
if (! $this->authenticationService instanceof AuthenticationServiceInterface) {
throw new Exception\RuntimeException('No AuthenticationServiceInterface instance provided');
}
if (! $this->authenticationService->hasIdentity()) {
return;
}
return $this->authenticationService->getIdentity();
}
/**
* Set AuthenticationService instance
*
* @param AuthenticationServiceInterface $authenticationService
* @return Identity
*/
public function setAuthenticationService(AuthenticationServiceInterface $authenticationService)
{
$this->authenticationService = $authenticationService;
return $this;
}
/**
* Get AuthenticationService instance
*
* @return AuthenticationServiceInterface
*/
public function getAuthenticationService()
{
return $this->authenticationService;
}
}