mirror of
https://github.com/OpenXE-org/OpenXE.git
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345 lines
9.3 KiB
PHP
345 lines
9.3 KiB
PHP
<?php
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/*
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**** COPYRIGHT & LICENSE NOTICE *** DO NOT REMOVE ****
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*
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* Xentral (c) Xentral ERP Sorftware GmbH, Fuggerstrasse 11, D-86150 Augsburg, * Germany 2019
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*
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* This file is licensed under the Embedded Projects General Public License *Version 3.1.
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*
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* You should have received a copy of this license from your vendor and/or *along with this file; If not, please visit www.wawision.de/Lizenzhinweis
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* to obtain the text of the corresponding license version.
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*
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**** END OF COPYRIGHT & LICENSE NOTICE *** DO NOT REMOVE ****
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*/
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?>
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<?php
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/// Secure Layer, SQL Inject. Check, Syntax Check
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class Secure
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{
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public $GET;
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public $POST;
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/**
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* Secure constructor.
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*
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* @param ApplicationCore $app
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*/
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public function __construct($app){
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$this->app = $app;
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// clear global variables, that everybody have to go over secure layer
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$this->GET = $_GET;
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if(isset($this->GET['msgs']) && isset($this->app->Location)) {
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$this->GET['msg'] = $this->app->Location->getMessage($this->GET['msgs']);
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}
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// $_GET="";
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$this->POST = $_POST;
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// $_POST="";
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if(!isset($this->app->stringcleaner) && file_exists(__DIR__. '/class.stringcleaner.php')) {
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if(!class_exists('StringCleaner')) {
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require_once __DIR__ . '/class.stringcleaner.php';
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}
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$this->app->stringcleaner = new StringCleaner($this->app);
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}
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$this->AddRule('notempty','reg','.'); // at least one sign
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$this->AddRule('alpha','reg','[a-zA-Z]');
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$this->AddRule('digit','reg','[0-9]');
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$this->AddRule('space','reg','[ ]');
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$this->AddRule('specialchars','reg','[_-]');
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$this->AddRule('email','reg','^[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.([a-zA-Z]{2,4})$');
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$this->AddRule('datum','reg','([0-9]{1,2})\.([0-9]{1,2})\.([0-9]{4})');
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$this->AddRule('username','glue','alpha+digit');
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$this->AddRule('password','glue','alpha+digit+specialchars');
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}
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/**
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* @param string $name
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* @param null $rule
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* @param string $maxlength
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* @param string $sqlcheckoff
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*
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* @return array|mixed|string
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*/
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public function GetGET($name,$rule=null,$maxlength='',$sqlcheckoff='')
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{
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if($name === 'msg' && isset($this->app->erp) && method_exists($this, 'xss_clean')) {
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$ret = $this->Syntax(isset($this->GET[$name])?$this->GET[$name]:'','',$maxlength,$sqlcheckoff);
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$ret = $this->app->erp->base64_url_decode($ret);
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if(strpos($ret,'"button"') === false){
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$ret = $this->xss_clean($ret);
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}
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return $this->app->erp->base64_url_encode($ret);
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}
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if($rule === null) {
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$rule = $this->NameToRule($name);
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}
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return $this->Syntax(isset($this->GET[$name])?$this->GET[$name]:'',$rule,$maxlength,$sqlcheckoff);
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}
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function NameToRule($name)
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{
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switch($name)
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{
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case 'id':
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return 'doppelid';
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break;
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case 'sid':
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return 'alphadigits';
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break;
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case 'module':
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case 'smodule':
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case 'action':
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case 'saction':
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return 'module';
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break;
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case 'cmd':
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return 'moduleminus';
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break;
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}
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return 'nothtml';
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}
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public function GetPOST($name,$rule=null,$maxlength="",$sqlcheckoff="")
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{
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if($rule === null) {
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$rule = $this->NameToRule($name);
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if(isset($this->POST['ishtml_cke_'.$name]) && $this->POST['ishtml_cke_'.$name]) {
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$rule = 'nojs';
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}
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}
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return $this->Syntax(isset($this->POST[$name])?$this->POST[$name]:'',$rule,$maxlength,$sqlcheckoff);
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}
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public function GetPOSTForForms($name,$rule="",$maxlength="",$sqlcheckoff="")
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{
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return $this->SyntaxForForms($this->POST[$name],$rule,$maxlength,$sqlcheckoff);
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}
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public function CleanString($string, $rule='nohtml',$sqlcheckoff='')
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{
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return $this->Syntax($string, $rule, '', $sqlcheckoff);
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}
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public function xss_clean($data)
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{
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return $this->app->stringcleaner->xss_clean($data);
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}
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public function GetPOSTArray()
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{
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if(!empty($this->POST) && count($this->POST)>0)
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{
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foreach($this->POST as $key=>$value)
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{
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$value = $this->GetPOST($key);
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if ($value !== null) {
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$ret[$key] = $value;
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}
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}
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}
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if(!empty($ret))
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{
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return $ret;
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}
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return null;
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}
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public function GetGETArray()
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{
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if(!empty($this->GET) && count($this->GET)>0)
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{
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foreach($this->GET as $key=>$value)
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{
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$value = $this->GetGET($key);
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if ($value !== null) {
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$ret[$key] = $value;
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}
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}
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}
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if(!empty($ret))
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{
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return $ret;
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}
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return null;
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}
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function stripallslashes($string) {
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while(strstr($string,'\\')) {
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$string = stripslashes($string);
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}
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return $string;
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}
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public function smartstripslashes($str) {
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$cd1 = substr_count($str, "\"");
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$cd2 = substr_count($str, "\\\"");
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$cs1 = substr_count($str, "'");
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$cs2 = substr_count($str, "\\'");
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$tmp = strtr($str, array("\\\"" => "", "\\'" => ""));
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$cb1 = substr_count($tmp, "\\");
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$cb2 = substr_count($tmp, "\\\\");
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if ($cd1 == $cd2 && $cs1 == $cs2 && $cb1 == 2 * $cb2) {
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return strtr($str, array("\\\"" => "\"", "\\'" => "'", "\\\\" => "\\"));
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}
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return $str;
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}
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public function SyntaxForForms($value,$rule,$maxlength="",$sqlcheckoff="")
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{
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return $value;//mysqli_real_escape_string($this->app->DB->connection,$value);//mysqli_real_escape_string($value);
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}
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// check actual value with given rule
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public function Syntax($value,$rule,$maxlength='',$sqlcheckoff='')
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{
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$striptags = false;
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if(is_array($value))
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{
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if($sqlcheckoff != '')
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{
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return $value;
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}
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foreach($value as $k => $v)
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{
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if(is_array($v))
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{
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$value[$k] = $v;
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}else{
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$v = str_replace("\xef\xbb\xbf","NONBLOCKINGZERO",$v);
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if($striptags){
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$v = $this->stripallslashes($v);
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$v = $this->smartstripslashes($v);
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$v = $this->app->erp->superentities($v);
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}
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$value[$k] = $this->app->DB->real_escape_string($v);
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}
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}
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return $value;
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}
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$value = str_replace("\xef\xbb\xbf","NONBLOCKINGZERO",$value);
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if($striptags){
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$value = $this->stripallslashes($value);
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$value = $this->smartstripslashes($value);
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$value = $this->app->erp->superentities($value);
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}
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if(!empty($this->app->stringcleaner)) {
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if( $sqlcheckoff == '') {
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return $this->app->DB->real_escape_string($this->app->stringcleaner->CleanString($value, $rule));
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}
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return $this->app->stringcleaner->CleanString($value, $rule);
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}
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if($rule === 'nohtml') {
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if( $sqlcheckoff == '') {
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return $this->app->DB->real_escape_string(strip_tags($value));
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}
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return strip_tags($value);
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}
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if($rule === 'nojs') {
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if( $sqlcheckoff == '') {
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return $this->app->DB->real_escape_string($this->xss_clean($value));
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}
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return $this->xss_clean($value);
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}
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if($rule=='' && $sqlcheckoff == '') {
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return $this->app->DB->real_escape_string($value);//mysqli_real_escape_string($value);
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}
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if($rule=='' && $sqlcheckoff != '') {
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return $value;
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}
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// build complete regexp
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// check if rule exists
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if($this->GetRegexp($rule)!=''){
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//$v = '/^['.$this->GetRegexp($rule).']+$/';
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$v = $this->GetRegexp($rule);
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if (preg_match_all('/'.$v.'/i', $value, $teffer) ) {
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if($sqlcheckoff==''){
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return $this->app->DB->real_escape_string($value);//mysqli_real_escape_string($value);
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}
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return $value;
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}
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return '';
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}
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echo "<table border=\"1\" width=\"100%\" bgcolor=\"#FFB6C1\">
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<tr><td>Rule <b>$rule</b> doesn't exists!</td></tr></table>";
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return '';
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}
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function RuleCheck($value,$rule)
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{
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$found = false;
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if(!empty($this->app->stringcleaner)) {
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$value_ = $this->app->stringcleaner->RuleCheck($value, $rule, $found);
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if($found) {
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if($value_) {
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return true;
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}
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return false;
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}
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}
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$v = $this->GetRegexp($rule);
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if (preg_match_all('/'.$v.'/i', $value, $teffer) ){
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return true;
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}
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return false;
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}
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function AddRule($name,$type,$rule)
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{
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// type: reg = regular expression
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// type: glue ( already exists rules copy to new e.g. number+digit)
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$this->rules[$name]=array('type'=>$type,'rule'=>$rule);
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}
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// get complete regexp by rule name
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function GetRegexp($rule)
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{
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$rules = explode('+',$rule);
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$ret = '';
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foreach($rules as $key) {
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// check if rule is last in glue string
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if($this->rules[$key]['type']==='glue') {
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$subrules = explode('+',$this->rules[$key]['rule']);
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if(count($subrules)>0) {
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foreach($subrules as $subkey) {
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$ret .= $this->GetRegexp($subkey);
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}
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}
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}
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elseif($this->rules[$key]['type']==='reg') {
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$ret .= $this->rules[$key]['rule'];
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}
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}
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if($ret==''){
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$ret = 'none';
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}
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return $ret;
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}
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}
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