| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace yiicod\auth\models; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Yii; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use yii\base\InvalidParamException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use yii\base\NotSupportedException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use yii\behaviors\TimestampBehavior; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use yii\db\ActiveRecord; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use yii\web\IdentityInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * User model | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @property int $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * @property string $username | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @property string $password_hash | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @property string $password_reset_token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * @property string $email | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  * @property string $auth_key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  * @property int $role | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  * @property int $status | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  * @property int $updated_at | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  * @property string $password write-only password | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | class UserModel extends ActiveRecord implements IdentityInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @inheritdoc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     public static function tableName() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         return 'user'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * @inheritdoc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |     public function rules() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @inheritdoc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     public static function findIdentity($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         return static::find() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |             ->where(['id' => $id]) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |             ->identity() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |             ->one(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * @inheritdoc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     public static function findIdentityByAccessToken($token, $type = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      * Finds user by username | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * @param string $username | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * @return static|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     public static function findByUsername($username) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         return static::find() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |             ->where([static::attributesMap()['fieldLogin'] => $username]) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |             ->byUsername() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |             ->one(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |      * Finds user by password reset token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |      * @param string $token password reset token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * @return static|null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     public static function findByPasswordResetToken($token) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |         if (false === static::isPasswordResetTokenValid($token)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |             return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         return static::find() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |             ->where([static::attributesMap()['fieldPasswordResetToken'] => $token]) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |             ->byPasswordResetToken() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |             ->one(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |      * Finds out if password reset token is valid | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |      * @param string $token password reset token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     public static function isPasswordResetTokenValid($token) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |         if (empty($token)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         $timestamp = (int)substr($token, strrpos($token, '_') + 1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         $expire = Yii::$app->params['user.passwordResetTokenExpire']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |         return $timestamp + $expire >= time(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |     public static function find() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |         /** @var UserQueryInterface $userQueryclass */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |         $userQueryclass = Yii::$app->get('auth')->modelMap['userQuery']['class']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |         return new $userQueryclass(get_called_class()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     public function getId() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         return $this->getPrimaryKey(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * @return string | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 137 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 138 |  |  |     public function getAuthKey() | 
            
                                                                        
                            
            
                                    
            
            
                | 139 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 140 |  |  |         return $this->auth_key; | 
            
                                                                        
                            
            
                                    
            
            
                | 141 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |      * @param string $authKey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     public function validateAuthKey($authKey) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         return $this->getAuthKey() === $authKey; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |      * Validates password | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |      * @param string $password password to validate | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      * @return bool if password provided is valid for current user | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |     public function validatePassword($password) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |         try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |             return Yii::$app->security->validatePassword( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |                 $password, $this->password | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         } catch (InvalidParamException $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |             return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |      * Generates password hash from password and sets it to the model | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |      * @param string $password | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |     public function generatePassword($password) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         $this->password = Yii::$app->security->generatePasswordHash($password); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |      * Generates "remember me" authentication key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |     public function generateAuthKey() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         $this->auth_key = Yii::$app->security->generateRandomString(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |      * Generates new password reset token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |     public function generatePasswordResetToken() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |      * Removes password reset token | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |     public function removePasswordResetToken() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |         $this->password_reset_token = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |     public static function attributesMap() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |             'fieldLogin' => 'email', //requred | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |             'fieldEmail' => 'email', //requred | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             'fieldPassword' => 'password_hash', //requred | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |             'fieldAuthKey' => 'auth_key', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |             'fieldUsername' => 'username', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |             'fieldStatus' => 'status', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |             'fieldPasswordResetToken' => 'password_reset_token', //requred | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |             'fieldCreatedDate' => 'created_date', //or null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |             'fieldUpdatedDate' => 'updated_date', //or null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     public function behaviors() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |             'attributesMapBehavior' => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |                 'class' => '\yiicod\base\models\behaviors\AttributesMapBehavior', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |                 'attributesMap' => static::attributesMap(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |             'timestampBehavior' => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |                 'class' => TimestampBehavior::className(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |                 'createdAtAttribute' => static::attributesMap()['fieldCreatedDate'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |                 'updatedAtAttribute' => static::attributesMap()['fieldUpdatedDate'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 234 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 235 |  |  |  |