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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Authorization\Model;
use Magento\Framework\ObjectManager\Helper\Composite as CompositeHelper;
/**
* User context.
*
* This class is not implementing standard composite pattern and will not invoke all of its children.
* Instead, it will try to find the first suitable child and return its result.
*
* @api
* @since 100.0.2
*/
class CompositeUserContext implements \Magento\Authorization\Model\UserContextInterface
{
/**
* @var UserContextInterface[]
*/
protected $userContexts = [];
/**
* @var UserContextInterface|bool
*/
protected $chosenUserContext;
/**
* Register user contexts.
*
* @param CompositeHelper $compositeHelper
* @param UserContextInterface[] $userContexts
*/
public function __construct(CompositeHelper $compositeHelper, $userContexts = [])
{
$userContexts = $compositeHelper->filterAndSortDeclaredComponents($userContexts);
foreach ($userContexts as $userContext) {
$this->add($userContext['type']);
}
}
/**
* Add user context.
*
* @param UserContextInterface $userContext
* @return CompositeUserContext
*/
protected function add(UserContextInterface $userContext)
{
$this->userContexts[] = $userContext;
return $this;
}
/**
* {@inheritdoc}
*/
public function getUserId()
{
return $this->getUserContext() ? $this->getUserContext()->getUserId() : null;
}
/**
* {@inheritdoc}
*/
public function getUserType()
{
return $this->getUserContext() ? $this->getUserContext()->getUserType() : null;
}
/**
* Retrieve user context
*
* @return UserContextInterface|bool False if none of the registered user contexts can identify user type
*/
protected function getUserContext()
{
if ($this->chosenUserContext === null) {
/** @var UserContextInterface $userContext */
foreach ($this->userContexts as $userContext) {
if ($userContext->getUserType() && $userContext->getUserId() !== null) {
$this->chosenUserContext = $userContext;
break;
}
}
if ($this->chosenUserContext === null) {
$this->chosenUserContext = false;
}
}
return $this->chosenUserContext;
}
}