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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Yii2 module providing multi-factor authentication  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      https://github.com/hiqdev/yii2-mfa  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package   yii2-mfa  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   BSD-3-Clause  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright Copyright (c) 2016, HiQDev (http://hiqdev.com/)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace hiqdev\yii2\mfa\controllers;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use hiqdev\yii2\mfa\forms\InputForm;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Yii;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\helpers\Url;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yii\filters\AccessControl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * TOTP controller.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Time-based One Time Password.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class TotpController extends \yii\web\Controller  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function behaviors()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array_merge(parent::behaviors(), [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'access' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'class' => AccessControl::class,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'denyCallback' => [$this, 'denyCallback'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'rules' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    // ? - guest  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        'actions' => ['check'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        'roles' => ['?'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        'allow' => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    // @ - authenticated  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        'actions' => ['enable', 'disable', 'toggle'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        'roles' => ['@'],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        'allow' => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function denyCallback()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->goHome();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function actionEnable($back = null)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $user = Yii::$app->user->identity;  | 
            
            
                                                                        
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                        if ($user->totp_secret) { | 
            
                            
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                            Yii::$app->session->setFlash('error', Yii::t('mfa', 'Two-factor authentication is already enabled. Disable first.')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return empty($back) ? $this->goHome() : $this->deferredRedirect($back);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $model = new InputForm();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $secret = $this->module->getTotp()->getSecret();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if ($model->load(Yii::$app->request->post()) && $model->validate()) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if ($this->module->getTotp()->verifyCode($secret, $model->code)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $user->totp_secret = $secret;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $this->module->getTotp()->setIsVerified(true);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                if ($user->save() && Yii::$app->user->login($user)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    Yii::$app->session->setFlash('success', Yii::t('mfa', 'Two-factor authentication successfully enabled.')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    return empty($back) ? $this->goBack() : $this->deferredRedirect($back);  | 
            
            
                                                                        
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                                } else { | 
            
                            
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                                    Yii::$app->session->setFlash('error', Yii::t('mfa', 'Sorry, we have failed to enable two-factor authentication.')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    return empty($back) ? $this->goHome() : $this->deferredRedirect($back);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            } else { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $model->addError('code', Yii::t('mfa', 'Wrong verification code. Please verify your secret and try again.')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $qrcode = $this->module->getTotp()->getQRCodeImageAsDataUri($user->username, $secret);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->render('enable', compact('model', 'secret', 'qrcode')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function actionDisable($back = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->module->getTotp()->removeSecret();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $user = Yii::$app->user->identity;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $user->totp_secret = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($user->save()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Yii::$app->session->setFlash('success', Yii::t('mfa', 'Two-factor authentication successfully disabled.')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return empty($back) ? $this->goBack() : $this->deferredRedirect($back);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function deferredRedirect($url = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->render('redirect', compact('url')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function actionToggle($back = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $user = Yii::$app->user->identity;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return empty($user->totp_secret) ? $this->actionEnable($back) : $this->actionDisable($back);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function actionCheck()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $user = $this->module->getHalfUser();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $model = new InputForm();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($model->load(Yii::$app->request->post()) && $model->validate()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($this->module->getTotp()->verifyCode($user->totp_secret, $model->code)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->module->getTotp()->setIsVerified(true);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                Yii::$app->user->login($user);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return $this->goBack();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $model->addError('code', Yii::t('mfa', 'Wrong verification code. Please verify your secret and try again.')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->render('check', [ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'model' => $model,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'issuer' => $this->module->getTotp()->issuer,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'username' => $user->username,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                        ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.