663 lines
26 KiB
PHP
663 lines
26 KiB
PHP
<?php
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/**
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* Project: SmartyValidate: Form Validator for the Smarty Template Engine
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* File: SmartyValidate.class.php
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* Author: Monte Ohrt <monte at newdigitalgroup dot com>
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* Website: http://www.phpinsider.com/php/code/SmartyValidate/
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* @link http://www.phpinsider.com/php/code/SmartyValidate/
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* @copyright 2001-2005 New Digital Group, Inc.
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* @author Monte Ohrt <monte at newdigitalgroup dot com>
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* @package SmartyValidate
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* @version 2.8
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*/
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if(!defined('SMARTY_VALIDATE_DEFAULT_FORM'))
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define('SMARTY_VALIDATE_DEFAULT_FORM', 'default');
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class SmartyValidate {
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/**
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* Class Constructor
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*/
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function SmartyValidate() { }
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/**
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* initialize the validator
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*
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* @param obj $smarty the smarty object
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* @param string $reset reset the default form?
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*/
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function connect(&$smarty, $reset = false) {
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if(SmartyValidate::is_valid_smarty_object($smarty)) {
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SmartyValidate::_object_instance('Smarty', $smarty);
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SmartyValidate::register_form(SMARTY_VALIDATE_DEFAULT_FORM, $reset);
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} else {
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trigger_error("SmartyValidate: [connect] I need a valid Smarty object.");
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return false;
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}
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}
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/**
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* test if object is a valid smarty object
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*
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* @param obj $smarty_obj the smarty object
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*/
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function is_valid_smarty_object(&$smarty_obj) {
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return (is_object($smarty_obj) && (strtolower(get_class($smarty_obj)) == 'smarty' || is_subclass_of($smarty_obj, 'smarty')));
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}
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/**
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* clear the entire SmartyValidate session
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*
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*/
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function disconnect() {
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unset($_SESSION['SmartyValidate']);
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SmartyValidate::_object_instance('-', $_dummy);
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}
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/**
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* initialize the session data
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*
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* @param string $form the name of the form being validated
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* @param string $reset reset an already registered form?
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*/
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function register_form($form, $reset = false) {
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if(SmartyValidate::is_registered_form($form) && !$reset) {
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return false;
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} else {
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$_SESSION['SmartyValidate'][$form] = array();
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$_SESSION['SmartyValidate'][$form]['registered_funcs']['criteria'] = array();
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$_SESSION['SmartyValidate'][$form]['registered_funcs']['transform'] = array();
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$_SESSION['SmartyValidate'][$form]['validators'] = array();
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$_SESSION['SmartyValidate'][$form]['is_error'] = false;
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$_SESSION['SmartyValidate'][$form]['is_init'] = true;
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SmartyValidate::_smarty_assign();
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return true;
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}
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}
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/**
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* unregister a form from the session
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*
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* @param string $form the name of the form being validated
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*/
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function unregister_form($form) {
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unset($_SESSION['SmartyValidate'][$form]);
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}
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/**
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* test if the session data is initialized
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*
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* @param string $form the name of the form being validated
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*/
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function is_registered_form($form = SMARTY_VALIDATE_DEFAULT_FORM) {
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return isset($_SESSION['SmartyValidate'][$form]);
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}
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function _failed_fields(&$formvars, $form = SMARTY_VALIDATE_DEFAULT_FORM, $revalidate = false)
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{
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// keep track of failed fields
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static $_failed_fields = array();
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if(isset($_failed_fields[$form]) && !$revalidate) {
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// already validated the form
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return $_failed_fields[$form];
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}
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// failed fields for current pass
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$_ret = array();
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$_sess =& $_SESSION['SmartyValidate'][$form]['validators'];
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foreach($_sess as $_key => $_val) {
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if(isset($_SESSION['SmartyValidate'][$form]['page'])
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&& $_sess[$_key]['page'] != $_SESSION['SmartyValidate'][$form]['page']) {
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// not on page, do not validate
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continue;
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}
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$_full_field = $_field = $_sess[$_key]['field'];
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$_field_key = null;
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$_empty = isset($_sess[$_key]['empty']) ? $_sess[$_key]['empty'] : false;
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$_message = isset($_sess[$_key]['message']) ? $_sess[$_key]['message'] : null;
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if(is_array($_ret) && in_array($_full_field, $_ret)) {
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// already failed, skip this test
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continue;
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}
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// field is name-keyed array, pull it apart
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if(($_lpos = strpos($_field, '[')) !== false && ($_rpos = strpos($_field, ']')) !== false) {
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if (($_keylen = ($_rpos - $_lpos - 1)) > 0) {
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$_field_key = substr($_field, $_lpos+1, $_keylen);
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}
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$_field = substr($_field, 0, $_lpos);
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}
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if(isset($_sess[$_key]['transform'])) {
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$_trans_names = preg_split('![\s,]+!', $_sess[$_key]['transform'], -1, PREG_SPLIT_NO_EMPTY);
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if($_sess[$_key]['trim']) {
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// put trim on front of transform array
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array_unshift($_trans_names, 'trim');
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}
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foreach($_trans_names as $_trans_name) {
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if(substr($_trans_name,0,1) == '@') {
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// transformation will apply to entire array
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$_trans_on_array = true;
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$_trans_name = substr($_trans_name,1);
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} else {
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// transformation will apply to each array element
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$_trans_on_array = false;
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}
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if(strpos($_trans_name,':') !== false) {
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// transform has parameters, put them in $formvars
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$_trans_parts = explode(':', $_trans_name);
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$_trans_name = array_shift($_trans_parts);
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$_trans_index = 2;
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foreach($_trans_parts as $_trans_param) {
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$_trans_field = $_trans_name . $_trans_index;
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$_sess[$_key][$_trans_field] = $_trans_param;
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$_trans_index++;
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}
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}
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if(is_array($formvars[$_field]) && !$_trans_on_array) {
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if(isset($_field_key)) {
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// only apply to given key
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if(($_new_val = SmartyValidate::_execute_transform($_trans_name, $formvars[$_field][$_field_key], $_sess[$_key], $formvars, $form)) !== false)
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$formvars[$_field][$_field_key] = $_new_val;
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} else {
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// apply to all keys
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for($_x = 0, $_y = count($formvars[$_field]); $_x < $_y; $_x++) {
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if(($_new_val = SmartyValidate::_execute_transform($_trans_name, $formvars[$_field][$_x], $_sess[$_key], $formvars, $form)) !== false)
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$formvars[$_field][$_x] = $_new_val;
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}
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}
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} else {
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if(($_new_val = SmartyValidate::_execute_transform($_trans_name, $formvars[$_field], $_sess[$_key], $formvars, $form)) !== false)
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$formvars[$_field] = $_new_val;
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}
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}
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}
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if((!isset($formvars[$_field]) && (!isset($_FILES[$_field])))
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|| (
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((is_array($formvars[$_field]) && count($_field) == 0) || (is_string($formvars[$_field]) && strlen($formvars[$_field]) == 0)) && $_empty
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)
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) {
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// field must exist, or else fails automatically
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$_sess[$_key]['valid'] = $_empty;
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} else {
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if(substr($_val['criteria'],0,1) == '@') {
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// criteria will apply to entire array or given key
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$_criteria_on_array = true;
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$_val['criteria'] = substr($_val['criteria'],1);
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} else {
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// criteria will apply to each array element
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$_criteria_on_array = false;
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}
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if(is_array($formvars[$_field]) && !$_criteria_on_array) {
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if(isset($_field_key)) {
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// only apply to given key
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$_sess[$_key]['valid'] = SmartyValidate::_is_valid_criteria($_val['criteria'], $formvars[$_field][$_field_key], $_empty, $_sess[$_key], $formvars, $form);
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} else {
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// apply to all keys
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for($_x = 0, $_y = count($formvars[$_field]); $_x < $_y; $_x++) {
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if(! $_sess[$_key]['valid'] = SmartyValidate::_is_valid_criteria($_val['criteria'], $formvars[$_field][$_x], $_empty, $_sess[$_key], $formvars, $form)) {
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// found invalid array element, exit for loop
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break;
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}
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}
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}
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} else {
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$_sess[$_key]['valid'] = SmartyValidate::_is_valid_criteria($_val['criteria'], $formvars[$_field], $_empty, $_sess[$_key], $formvars, $form);
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}
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}
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if(!$_sess[$_key]['valid']) {
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$_ret[] = $_full_field;
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if(isset($_sess[$_key]['halt']) && $_sess[$_key]['halt'])
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break;
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}
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}
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$_failed_fields[$form] = $_ret;
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return $_ret;
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}
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/**
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* validate the form
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*
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* @param string $formvars the array of submitted for variables
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* @param string $form the name of the form being validated
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*/
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function is_valid(&$formvars, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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static $_is_valid = array();
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if(isset($_is_valid[$form])) {
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// already validated the form
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return $_is_valid[$form];
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}
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$_smarty_obj =& SmartyValidate::_object_instance('Smarty', $_dummy);
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if(!SmartyValidate::is_valid_smarty_object($_smarty_obj)) {
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trigger_error("SmartyValidate: [is_valid] No valid smarty object, call connect() first.");
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return false;
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}
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if(!SmartyValidate::is_registered_form($form)) {
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trigger_error("SmartyValidate: [is_valid] form '$form' is not registered.");
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return false;
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} elseif ($_SESSION['SmartyValidate'][$form]['is_init']) {
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// first run, skip validation
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return false;
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} elseif (count($_SESSION['SmartyValidate'][$form]['validators']) == 0) {
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// nothing to validate
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return true;
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}
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// check for failed fields
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$_failed_fields = SmartyValidate::_failed_fields($formvars, $form);
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$_ret = is_array($_failed_fields) && count($_failed_fields) == 0;
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// set validation state of form
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$_SESSION['SmartyValidate'][$form]['is_error'] = !$_ret;
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$_is_valid[$form] = $_ret;
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return $_ret;
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}
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/**
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* register a callable function for form verification
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*
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* @param string $func_name the function being registered
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*/
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function register_object($object_name, &$object) {
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if(!is_object($object)) {
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trigger_error("SmartyValidate: [register_object] not a valid object.");
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return false;
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}
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SmartyValidate::_object_instance($object_name, $object);
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}
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/**
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* register a callable function for form verification
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*
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* @param string $func_name the function being registered
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*/
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function is_registered_object($object_name) {
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$_object =& SmartyValidate::_object_instance($object_name, $_dummy);
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return is_object($_object);
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}
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/**
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* register a callable function for form verification
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*
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* @param string $func_name the function being registered
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*/
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function register_criteria($name, $func_name, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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return SmartyValidate::_register_function('criteria', $name, $func_name, $form);
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}
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/**
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* register a callable function for form verification
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*
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* @param string $func_name the function being registered
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*/
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function register_transform($name, $func_name, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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return SmartyValidate::_register_function('transform', $name, $func_name, $form);
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}
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/**
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* test if a criteria function is registered
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*
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* @param string $var the value being booleanized
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*/
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function is_registered_criteria($name, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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if(!SmartyValidate::is_registered_form($form)) {
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trigger_error("SmartyValidate: [is_registered_criteria] form '$form' is not registered.");
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return false;
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}
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return isset($_SESSION['SmartyValidate'][$form]['registered_funcs']['criteria'][$name]);
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}
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/**
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* test if a tranform function is registered
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*
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* @param string $var the value being booleanized
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*/
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function is_registered_transform($name, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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if(!SmartyValidate::is_registered_form($form)) {
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trigger_error("SmartyValidate: [is_registered_transform] form '$form' is not registered.");
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return false;
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}
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return isset($_SESSION['SmartyValidate'][$form]['registered_funcs']['transform'][$name]);
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}
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/**
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* register a validator
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*
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* @param string $id the id of the validator
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* @param string $field the field to be validated
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* @param string $criteria the name of the criteria function
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* @param string $empty allow field to be empty (optional)
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* @param string $halt stop validation if this one fails (optional)
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* @param string $transform transform function(s) to apply (optional)
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* @param string $form name of the form (optional)
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*/
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function register_validator($id, $field, $criteria, $empty = false, $halt = false, $transform = null, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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if(!SmartyValidate::is_registered_form($form)) {
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trigger_error("SmartyValidate: [register_validator] form '$form' is not registered.");
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return false;
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}
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SmartyValidate::unregister_validator($id,$form);
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$_field = explode(':', $field);
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$_validator = array();
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foreach($_field as $_key => $_val) {
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if($_key == 0)
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$_validator['field'] = $_val;
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else {
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$_field_name = 'field';
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$_field_name .= $_key + 1;
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$_validator[$_field_name] = $_val;
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}
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}
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$_validator['id'] = $id;
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$_validator['criteria'] = $criteria;
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$_validator['message'] = '';
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$_validator['trim'] = false;
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$_validator['empty'] = $empty;
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$_validator['halt'] = $halt;
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$_validator['transform'] = $transform;
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$_SESSION['SmartyValidate'][$form]['validators'][] = $_validator;
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}
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/**
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* register a validator
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*
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* @param string $id the id of the validator
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* @param string $transform the name of the transform function(s)
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* @param string $form name of the form (optional)
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*/
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function set_transform($id, $transform, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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if(($_validator_key = SmartyValidate::is_registered_validator($id,$form)) === false) {
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trigger_error("SmartyValidate: [set_transform] validator '$id' is not registered.");
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return false;
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}
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$_SESSION['SmartyValidate'][$form]['validators'][$_validator_key]['transform'] = $transform;
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}
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/**
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* test if a validator is registered
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*
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* @param string $id the validator to test
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*/
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function is_registered_validator($id, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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if(!SmartyValidate::is_registered_form($form)) {
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trigger_error("SmartyValidate: [is_registered_validator] form '$form' is not registered.");
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return false;
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}
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foreach($_SESSION['SmartyValidate'][$form]['validators'] as $_key => $_val) {
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if($_SESSION['SmartyValidate'][$form]['validators'][$_key]['id'] == $id) {
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// return array index of validator
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return $_key;
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}
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}
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return false;
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}
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/**
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* unregister a validator
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*
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* @param string $id the validator to unregister
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*/
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function unregister_validator($id, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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if(!SmartyValidate::is_registered_form($form)) {
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return false;
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}
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foreach($_SESSION['SmartyValidate'][$form]['validators'] as $_key => $_val) {
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if(isset($_SESSION['SmartyValidate'][$form]['validators'][$_key]['id'])
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&& $_SESSION['SmartyValidate'][$form]['validators'][$_key]['id'] == $id) {
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unset($_SESSION['SmartyValidate'][$form]['validators'][$_key]);
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break;
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}
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}
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}
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/**
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* set the current page of the form
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*
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* @param string $page the name of the page being validated
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* @param string $form the name of the form being validated
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*/
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function set_page($page, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
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$_SESSION['SmartyValidate'][$form]['page'] = $page;
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$_SESSION['SmartyValidate'][$form]['is_error'] = false;
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$_SESSION['SmartyValidate'][$form]['is_init'] = true;
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}
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/**
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* return actual function name of registered func
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*
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* @param string $type the type of func
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* @param string $name the registered name
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* @param string $form the form name
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*/
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function _execute_transform($name, $value, $params, &$formvars, $form) {
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if(SmartyValidate::is_registered_transform($name, $form)) {
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$_func_name = SmartyValidate::_get_registered_func_name('transform', $name, $form);
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} else {
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$_func_name = 'smarty_validate_transform_' . $name;
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if(!function_exists($_func_name)) {
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$_smarty_obj =& SmartyValidate::_object_instance('Smarty', $_dummy);
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if($_plugin_file = $_smarty_obj->_get_plugin_filepath('validate_transform', $name)) {
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include_once($_plugin_file);
|
|
} else {
|
|
trigger_error("SmartyValidate: [is_valid] transform function '$name' was not found.");
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
if(strpos($_func_name,'->') !== false) {
|
|
// object method
|
|
preg_match('!(\w+)->(\w+)!', $_func_name, $_match);
|
|
$_object_name = $_match[1];
|
|
$_method_name = $_match[2];
|
|
$_object =& SmartyValidate::_object_instance($_object_name, $_dummy);
|
|
if(!method_exists($_object, $_method_name)) {
|
|
trigger_error("SmartyValidate: [is_valid] method '$_method_name' is not valid for object '$_object_name'.");
|
|
return false;
|
|
}
|
|
return $_object->$_method_name($value, $params, $formvars);
|
|
} else {
|
|
return $_func_name($value, $params, $formvars);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* register a callable function for form verification
|
|
*
|
|
* @param string $func_name the function being registered
|
|
*/
|
|
function _register_function($type, $name, $func_name, $form = SMARTY_VALIDATE_DEFAULT_FORM) {
|
|
if(!SmartyValidate::is_registered_form($form)) {
|
|
trigger_error("SmartyValidate: [register_$type] form '$form' is not registered.");
|
|
return false;
|
|
}
|
|
if(strpos($func_name,'->') !== false) {
|
|
// object method
|
|
preg_match('!(\w+)->(\w+)!', $func_name, $_match);
|
|
$_object_name = $_match[1];
|
|
$_method_name = $_match[2];
|
|
$_object =& SmartyValidate::_object_instance($_object_name, $_dummy);
|
|
if(!method_exists($_object, $_method_name)) {
|
|
trigger_error("SmartyValidate: [register_$type] method '$_method_name' is not valid for object '$_object_name'.");
|
|
return false;
|
|
}
|
|
} elseif (strpos($func_name,'::') !== false) {
|
|
// static method
|
|
preg_match('!(\w+)::(\w+)!', $func_name, $_match);
|
|
if(!is_callable(array($_match[1], $_match[2]))) {
|
|
trigger_error("SmartyValidate: [register_$type] static method '$func_name' does not exist.");
|
|
return false;
|
|
}
|
|
} elseif(!function_exists($func_name)) {
|
|
trigger_error("SmartyValidate: [register_$type] function '$func_name' does not exist.");
|
|
return false;
|
|
}
|
|
$_SESSION['SmartyValidate'][$form]['registered_funcs'][$type][$name] = $func_name;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* return actual function name of registered func
|
|
*
|
|
* @param string $type the type of func
|
|
* @param string $name the registered name
|
|
* @param string $form the form name
|
|
*/
|
|
function _get_registered_func_name($type,$name,$form) {
|
|
return isset($_SESSION['SmartyValidate'][$form]['registered_funcs'][$type][$name])
|
|
? $_SESSION['SmartyValidate'][$form]['registered_funcs'][$type][$name]
|
|
: false;
|
|
}
|
|
|
|
|
|
/**
|
|
* booleanize a value
|
|
*
|
|
* @param string $var the value being booleanized
|
|
*/
|
|
function _booleanize($var) {
|
|
if(in_array(strtolower($var), array(true, 1, 'true','on','yes','y'),true)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* validate criteria for given value
|
|
*
|
|
* @param string $criteria the criteria to test against
|
|
* @param string $value the value being tested
|
|
* @param string $empty skip empty values or not
|
|
*/
|
|
function _is_valid_criteria($criteria, $value, $empty, &$params, &$formvars, $form) {
|
|
if(SmartyValidate::is_registered_criteria($criteria,$form)) {
|
|
$_func_name = SmartyValidate::_get_registered_func_name('criteria',$criteria, $form);
|
|
} else {
|
|
$_func_name = 'smarty_validate_criteria_' . $criteria;
|
|
if(!function_exists($_func_name)) {
|
|
$_smarty_obj =& SmartyValidate::_object_instance('Smarty', $_dummy);
|
|
if($_plugin_file = $_smarty_obj->_get_plugin_filepath('validate_criteria', $criteria)) {
|
|
include_once($_plugin_file);
|
|
} else {
|
|
trigger_error("SmartyValidate: [is_valid] criteria function '$criteria' was not found.");
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
if(strpos($_func_name,'->') !== false) {
|
|
// object method
|
|
preg_match('!(\w+)->(\w+)!', $_func_name, $_match);
|
|
$_object_name = $_match[1];
|
|
$_method_name = $_match[2];
|
|
$_object =& SmartyValidate::_object_instance($_object_name, $_dummy);
|
|
if(!method_exists($_object, $_method_name)) {
|
|
trigger_error("SmartyValidate: [is_valid] method '$_method_name' is not valid for object '$_object_name'.");
|
|
return false;
|
|
}
|
|
return $_object->$_method_name($value, $empty, $params, $formvars);
|
|
} else {
|
|
return $_func_name($value, $empty, $params, $formvars);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get or set an object instance
|
|
*
|
|
* @param string $name the object name
|
|
* @param object $object the object being set
|
|
*/
|
|
function &_object_instance($name, &$object) {
|
|
$return = false;
|
|
static $_objects = array();
|
|
if ($name=='-') {
|
|
unset ($_objects);
|
|
static $_objects = array();
|
|
}
|
|
if(!is_object($object)) {
|
|
if (isset($_objects[$name]))
|
|
return $_objects[$name];
|
|
else
|
|
return $return;
|
|
} else {
|
|
$_objects[$name] =& $object;
|
|
return $object;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get or set the smarty object instance
|
|
*
|
|
* @param string $value the value being tested
|
|
*/
|
|
function _smarty_assign($vars = array()) {
|
|
|
|
$_smarty_obj =& SmartyValidate::_object_instance('Smarty', $_dummy);
|
|
|
|
if(!is_object($_smarty_obj)) {
|
|
trigger_error("SmartyValidate: [assign] no valid smarty object found, call connect() first.");
|
|
return false;
|
|
}
|
|
|
|
if(!empty($vars)) {
|
|
$_smarty_obj->assign($vars);
|
|
}
|
|
foreach($_SESSION['SmartyValidate'] as $_key => $_val) {
|
|
$_info[$_key]['is_error'] = isset($_SESSION['SmartyValidate'][$_key]['is_error']) ? $_SESSION['SmartyValidate'][$_key]['is_error'] : null;
|
|
}
|
|
$_smarty_obj->assign('validate', $_info);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
?>
|