File builder/form/field/constraint/FormFieldConstraintPasswordStrength.class.php

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<?php
/**
 * @package     Builder
 * @subpackage  Form\field\constraint
 * @copyright   &copy; 2005-2019 PHPBoost
 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU/GPL-3.0
 * @author      Julien BRISWALTER <j1.seth@phpboost.com>
 * @version     PHPBoost 5.2 - last update: 2016 11 15
 * @since       PHPBoost 4.1 - 2015 08 05
 * @contributor mipel <mipel@phpboost.com>
*/

class FormFieldConstraintPasswordStrength extends FormFieldConstraintRegex
{
    // Must be at least 6 characters
    private static $weak_strength_regex = '/^(?=.{6,}).*$/u';
    // Must containt at least upper case letters and lower case letters or lower case letters and digits
    private static $medium_strength_regex = '/^(((?=.*[A-Z])(?=.*[a-z]))|((?=.*[A-Z])(?=.*[0-9]))|((?=.*[a-z])(?=.*[0-9]))).*$/u';
    // Must containt at least upper case letters, lower case letters and digits
    private static $strong_strength_regex = '/^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9]).*$/u';
    // Must containt at least upper case letters, lower case letters, digits and special characters
    private static $very_strong_strength_regex = '/^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[^\w\*]).*$/u';

    public function __construct($error_message = '')
    {
        switch (SecurityConfig::load()->get_internal_password_strength())
        {
            case SecurityConfig::PASSWORD_STRENGTH_VERY_STRONG :
                $regex = self::$very_strong_strength_regex;
                $error_message = empty($error_message) ? LangLoader::get_message('form.doesnt_match_very_strong_password_regex', 'status-messages-common') : $error_message;
                break;

            case SecurityConfig::PASSWORD_STRENGTH_STRONG :
                $regex = self::$strong_strength_regex;
                $error_message = empty($error_message) ? LangLoader::get_message('form.doesnt_match_strong_password_regex', 'status-messages-common') : $error_message;
                break;

            case SecurityConfig::PASSWORD_STRENGTH_MEDIUM :
                $regex = self::$medium_strength_regex;
                $error_message = empty($error_message) ? LangLoader::get_message('form.doesnt_match_medium_password_regex', 'status-messages-common') : $error_message;
                break;

            default :
                $regex = self::$weak_strength_regex;
                break;
        }

        $this->set_validation_error_message($error_message);

        parent::__construct(
            $regex,
            $regex,
            $error_message
        );
    }

    public function get_password_medium_strength_regex()
    {
        return self::$medium_strength_regex;
    }

    public function get_password_strong_strength_regex()
    {
        return self::$strong_strength_regex;
    }

    public function get_password_very_strong_strength_regex()
    {
        return self::$very_strong_strength_regex;
    }
}

?>