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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\debug\models;
use Yii;
use yii\base\Model;
use yii\web\IdentityInterface;
use yii\web\User;
/**
* UserSwitch is a model used to temporary logging in another user
*
* @property User $mainUser This property is read-only.
* @property null|User $user This property is read-only.
*
* @author Semen Dubina <yii2debug@sam002.net>
* @since 2.0.10
*/
class UserSwitch extends Model
{
/**
* @var User user which we are currently switched to
*/
private $_user;
/**
* @var User the main user who was originally logged in before switching.
*/
private $_mainUser;
/**
* @var string|User ID of the user component or a user object
* @since 2.0.13
*/
public $userComponent = 'user';
/**
* {@inheritdoc}
*/
public function rules()
{
return [
[['user', 'mainUser'], 'safe']
];
}
/**
* {@inheritdoc}
*/
public function attributeLabels()
{
return [
'user' => 'Current User',
'mainUser' => 'Main User',
];
}
/**
* Get current user
* @return null|User
* @throws \yii\base\InvalidConfigException
*/
public function getUser()
{
if ($this->_user === null) {
/* @var $user User */
$this->_user = is_string($this->userComponent) ? Yii::$app->get($this->userComponent,
false) : $this->userComponent;
}
return $this->_user;
}
/**
* Get main user
* @return User
* @throws \yii\base\InvalidConfigException
*/
public function getMainUser()
{
$currentUser = $this->getUser();
if ($this->_mainUser === null && $currentUser->getIsGuest() === false) {
$session = Yii::$app->getSession();
if ($session->has('main_user')) {
$mainUserId = $session->get('main_user');
$mainIdentity = call_user_func([$currentUser->identityClass, 'findIdentity'], $mainUserId);
} else {
$mainIdentity = $currentUser->identity;
}
$mainUser = clone $currentUser;
$mainUser->setIdentity($mainIdentity);
$this->_mainUser = $mainUser;
}
return $this->_mainUser;
}
/**
* Switch user
* @param User $user
* @throws \yii\base\InvalidConfigException
*/
public function setUser(User $user)
{
// Check if user is currently active one
$isCurrent = ($user->getId() === $this->getMainUser()->getId());
// Switch identity
$this->getUser()->switchIdentity($user->identity);
if (!$isCurrent) {
Yii::$app->getSession()->set('main_user', $this->getMainUser()->getId());
} else {
Yii::$app->getSession()->remove('main_user');
}
}
/**
* Switch to user by identity
* @param IdentityInterface $identity
* @throws \yii\base\InvalidConfigException
*/
public function setUserByIdentity(IdentityInterface $identity)
{
$user = clone $this->getUser();
$user->setIdentity($identity);
$this->setUser($user);
}
/**
* Reset to main user
*/
public function reset()
{
$this->setUser($this->getMainUser());
}
/**
* Checks if current user is main or not.
* @return bool
* @throws \yii\base\InvalidConfigException
*/
public function isMainUser()
{
$user = $this->getUser();
if ($user->getIsGuest()) {
return true;
}
return ($user->getId() === $this->getMainUser()->getId());
}
}