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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is part of the 2amigos/yii2-usuario project.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * (c) 2amigOS! <http://2amigos.us/>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * For the full copyright and license information, please view  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * the LICENSE file that was distributed with this source code.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Da\User\Service;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Contracts\ServiceInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Controller\AdminController;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Event\UserEvent;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Model\User;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Module;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Query\UserQuery;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Da\User\Traits\ContainerAwareTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Yii;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\web\ForbiddenHttpException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\web\IdentityInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class SwitchIdentityService implements ServiceInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    use ContainerAwareTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $controller;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $switchIdentitySessionKey;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $userId;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $userQuery;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(AdminController $controller, $userId, UserQuery $userQuery)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        /** @var Module $module */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $module = $controller->module;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->controller = $controller;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->switchIdentitySessionKey = $module->switchIdentitySessionKey;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->userId = $userId;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->userQuery = $userQuery;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function run()  | 
            
            
                                                        
            
                                    
            
            
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                    { | 
            
            
                                                        
            
                                    
            
            
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                        $session = Yii::$app->session;  | 
            
            
                                                        
            
                                    
            
            
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                        if (null === $this->userId) { // switch back identities | 
            
            
                                                        
            
                                    
            
            
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                            $user = $this->userQuery->whereId($session->get($this->switchIdentitySessionKey))->one();  | 
            
            
                                                        
            
                                    
            
            
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                            $session->remove($this->switchIdentitySessionKey);  | 
            
            
                                                        
            
                                    
            
            
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                        } else { | 
            
            
                                                        
            
                                    
            
            
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                            /** @var User $identity */  | 
            
            
                                                        
            
                                    
            
            
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                            $identity = Yii::$app->user->identity;  | 
            
            
                                                        
            
                                    
            
            
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                            if (!$identity->getIsAdmin()) { | 
            
            
                                                        
            
                                    
            
            
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                                // Only admins allowed on module. Developers can override the service and implement different  | 
            
            
                                                        
            
                                    
            
            
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                                // approach. For example, by roles other than, and including, admin.  | 
            
            
                                                        
            
                                    
            
            
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                                throw new ForbiddenHttpException();  | 
            
            
                                                        
            
                                    
            
            
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                            }  | 
            
            
                                                        
            
                                    
            
            
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                            $user = $this->userQuery->whereId($this->userId)->one();  | 
            
            
                                                        
            
                                    
            
            
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                            $session->set($this->switchIdentitySessionKey, $this->userId);  | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                        $event = $this->make(UserEvent::class, [$user]);  | 
            
            
                                                        
            
                                    
            
            
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                        $this->controller->trigger(UserEvent::EVENT_BEFORE_SWITCH_IDENTITY, $event);  | 
            
            
                                                        
            
                                    
            
            
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                        /** @var IdentityInterface $user */  | 
            
            
                                                        
            
                                    
            
            
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                        Yii::$app->user->switchIdentity($user, $session->timeout);  | 
            
            
                                                        
            
                                    
            
            
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                        $this->controller->trigger(UserEvent::EVENT_AFTER_SWITCH_IDENTITY, $event);  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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