<?php
/**
 * patForms Rule StrongPassword
 *
 * $Id$
 *
 * @package Wombat
 * @subpackage patForms
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */

WBClass::load('WBPAT_Forms_Rule');

/**
 * patForms Rule UserPassword
 *
 * Check value against current user's password
 *
 * @version 0.1.0
 * @package Wombat
 * @subpackage patForms
 */
class patForms_Rule_StrongPassword extends WBPAT_Forms_Rule
{
    /**
     * Initialize validation codes using gettext
     *
     * @access protected
     * @return bool $success Always returns true.
     * @see $attributeDefaults
     */
    function loadValidatiorErrorCodes()
    {
        $this->validatorErrorCodes  = array(
            1   =>   patI18n::dgettext('wombat', 'Password must be at least five characters long.'),
            2   =>   patI18n::dgettext('wombat', 'Weak password detected. Password must contain letters and digits, at least.')
        );
        return true;
    }

    /** 
     * apply rule 
     *
     * @param patForms_Element form object
     */
	public function applyRule(&$element, $type = PATFORMS_RULE_AFTER_VALIDATION)
	{
        $value = $element->getValue();
        if (strlen($value) < 5) {
            $this->addValidationError(1);
            return false;   
        }
        
        // password must have letters, digits and something different
        $letter =   preg_match('/[a-z]/i', $value);
        $digit  =   preg_match('/\d/', $value);
        //$else   =   preg_match('/[^a-z^A-Z^0-9]/', $value);
        $else   =   true;
        if ($letter && $digit && $else) {
            return true;
        }
        $this->addValidationError(2);
        return false;
	}
}
?>