luya\validators\StrengthValidator

Complexity

Total Complexity

13

Size/Duplication

Total Lines	64
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
C	validateAttribute()	0	28	13

<?php

namespace luya\validators;

use yii\validators\Validator;

/**
 * Checks a given string for given strength attributes.
 * 
 * This validator is commonly used to validate the strength of passwords.
 * 
 * @author Basil Suter <basil@nadar.io>
 * @since 1.0.6
 */
class StrengthValidator extends Validator
{
    /**
     * @var integer The minimum length of the string.
     */
    public $length = 8;
    
    /**
     * @var boolean Whether special chars are required in the string or not.
     */
    public $specials = true;
    
    /**
     * @var boolean Whether numbers are required in the string or not.
     */
    public $numbers = true;
    
    /**
     * @var boolean Whether letters are required in the string or not.
     */
    public $letters = true;
    
    /**
     * @var boolean Whether at least one upper char must exist in the string or not.
     */
    public $uppercase = true;
    
    /**
     * @var boolean Whether at least one lower case char must exist in the string or not.
     */
    public $lowercase;
    
    /**
     * @inheritdoc
     */
    public function validateAttribute($model, $attribute)
    {
        $value = $model->{$attribute};
        
        if ($this->length && strlen($value) <= $this->length) {
            return $model->addError($attribute, 'The string must have at least {$this->length} chars.');
        }
        
        if ($this->specials && !preg_match('/\W/', $value)) {
            return $model->addError($attribute, 'The string must contain any special char.');
        }
        
        if ($this->numbers && !preg_match('/\d/', $value)) {
            return $model->addError($attribute, 'The string must contain at least one digit');
        }
        
        if ($this->letters && !preg_match('/\p{L}/', $value)) {
            return $model->addError($attribute, 'The string must at least have one letter sign.');
        }
        
        if ($this->uppercase && !preg_match('/[A-Z]/', $value)) {
            return $model->addError($attribute, 'The string must at least have one upper case letter.');
        }
        
        if ($this->lowercase && !preg_match('/[a-z]/', $value)) {
            return $model->addError($attribute, 'The string must at least have one lower case letter.');
        }
    }
}