| Current File : //root/panel/dryden/runtime/sessionsecurity.class.php |
<?php
/**
* @copyright 2014-2015 Sentora Project (http://www.sentora.org/)
* Sentora is a GPL fork of the ZPanel Project whose original header follows:
*
* Session security class.
* @package zpanelx
* @subpackage dryden -> runtime
* @version 1.0.2
* @author Sam Mottley (smottley@zpanelcp.com)
* @copyright ZPanel Project (http://www.zpanelcp.com/)
* @link http://www.zpanelcp.com/
* @license GPL (http://www.gnu.org/licenses/gpl.html)
*/
class runtime_sessionsecurity {
/*****The below are generic function used more than once*****/
/**
* Regenerate the PHPSID
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function sessionRegen(){
if(session_regenerate_id()){
return true;
}else{
return false;
}
}
/**
* Get users ip address
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The Clean IP.
*/
static public function findIP() {
//$ip = $_SERVER["REMOTE_ADDR"];
if (isset($_SERVER["REMOTE_ADDR"])) {
$ip = $_SERVER["REMOTE_ADDR"] . ' ';
} else if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"] . ' ';
} else if (isset($_SERVER["HTTP_CLIENT_IP"])) {
$ip = $_SERVER["HTTP_CLIENT_IP"] . ' ';
}
return $ip;
}
/**
* Distroys the current session
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The Clean IP.
*/
static public function destroyCurrentSession(){
$_SESSION['zpuid'] = null;
unset($_COOKIE['zUserSaltCookie']);
session_destroy();
return true;
}
/**
* Get users details that are spefic for the individual user only
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function userSpeficData(){
$ip = self::findIP();
$username = $_SESSION['zpuid'];
return $ip.$username;
}
/*****Here we are are gathering infomration and storing securty*****/
/**
* This function will set the users agent in a secure session and hashes
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function setUserAgent(){
$_SESSION['HTTP_USER_AGENT'] = sha1($_SERVER['HTTP_USER_AGENT'],self::userSpeficData());
}
/**
* This function will set the users cookie login ID in a secure cookie and hashes
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function setCookie(){
$random = runtime_randomstring::randomHash(100);
if(isset($_SESSION['zUserSalt']) && isset($_COOKIE['zUserSaltCookie']) && ($_COOKIE['zUserSaltCookie'] == $_SESSION['zUserSalt'])){
//already set
}else{
$_SESSION['zUserSalt'] = $random;
setcookie("zUserSaltCookie", $random, time() + 60 * 60 * 24 * 30, "/");
}
return true;
}
/**
* This function will set the users IP in a secure session and hashes
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function setUserIP(){
$_SESSION['ip'] = sha1(self::findIP(), self::userSpeficData());
}
/**
* This set whether session security is enabled
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function setSessionSecurityEnabled($option){
if($option == true){
$_SESSION['zSessionSecurityEnabled'] = 1;
return true;
}else{
$_SESSION['zSessionSecurityEnabled'] = 0;
return false;
}
}
/*****The below is returning the secure information*****/
/**
* This will return the secure session set version of the users agent
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function getSetUserAgent(){
return $_SESSION['HTTP_USER_AGENT'];
}
/**
* This will return the secure session set version of the users ip
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function getSetIP(){
return $_SESSION['ip'];
}
/**
* This will return the secure session set version of the users cookie
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function getSetCookie(){
return $_SESSION['zUserSalt'];
}
/*****The below is retrieveing the current provided information*****/
/**
* This returns the current provied users agent via headers and THEN hashes
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function getProviedUserAgent(){
return sha1($_SERVER['HTTP_USER_AGENT'], self::userSpeficData());
}
/**
* This returns the current provied users agent via headers and THEN hashes
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function getProviedCookie(){
return $_COOKIE["zUserSaltCookie"];
}
/**
* This returns the current provied users IP and THEN hashes
* @author Sam Mottley (smottley@zpanelcp.com)
* @return string The data.
*/
static public function getProviedIP(){
return sha1(self::findIP(), self::userSpeficData());
}
/**
* This returns whether the user set the session secuirty option on login
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function getSessionSecurityEnabled(){
if(isset($_SESSION['zSessionSecurityEnabled']) && $_SESSION['zSessionSecurityEnabled'] == 1){
return true;
}else{
return false;
}
}
/*****Below are function that check information and try to identy any tampering*****/
/**
* This checks wether the set user agent for the session is the same one as what is currently being provied
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function checkAgent(){
$userSetAgent = self::getSetUserAgent();
$currentUserAgent = self::getProviedUserAgent();
if($userSetAgent == $currentUserAgent){
return true;
}else{
return false;
}
}
/**
* This checks wether the set user ip for the session is the same one as what is currently being provied
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function checkIP(){
$userSetIP = self::getSetIP();
$currentUserIP = self::getProviedIP();
if($userSetIP == $currentUserIP){
return true;
}else{
return false;
}
}
/**
* This checks wether the set user ip for the session is the same one as what is currently being provied
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean.
*/
static public function checkCookie(){
$userSetCookie = self::getSetCookie();
$currentUserCookie = self::getProviedCookie();
if($userSetCookie == $currentUserCookie){
return true;
}else{
return false;
}
}
/**
* This checks wheather the user is behind a proxy
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean
*/
static public function checkProxy(){
if (@$_SERVER['HTTP_X_FORWARDED_FOR']|| @$_SERVER['HTTP_X_FORWARDED']|| @$_SERVER['HTTP_FORWARDED_FOR']|| @$_SERVER['HTTP_CLIENT_IP']|| @$_SERVER['HTTP_VIA']|| @in_array($_SERVER['REMOTE_PORT'], array(8080,80,6588,8000,3128,553,554))|| @fsockopen($_SERVER['REMOTE_ADDR'], 80, $errno, $errstr, 1)){
return true;
}else{
return false;
}
}
/**
* Check if session secuirty enabled
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean
*/
static public function checkSessionSecurityEnabled(){
if(self::getSessionSecurityEnabled()){
return true;
}else{
return false;
}
}
/*****Below is the heart of the class*****/
/**
* This checks wheather the session has been stolen or not
* @author Sam Mottley (smottley@zpanelcp.com)
* @return boolean
*/
static public function antiSessionHijacking(){
$checkIP = self::checkIP();
$checkUserAgent = self::checkAgent();
if(($checkIP == true) && ($checkUserAgent == true)){
if(isset($_GET['module'])){
$checkUserCookie = self::checkCookie();
if($checkUserCookie == true){
return true;
}else{
self::destroyCurrentSession();
return false;
}
}else{
return true;
}
}else{
if(self::checkSessionSecurityEnabled() == false){
//proxies can cause fluxuations in the user agent and IP headers so user can disable it on login
if(isset($_GET['module'])){
$checkUserCookie = self::checkCookie();
if($checkUserCookie == true){
return true;
}else{
self::destroyCurrentSession();
return false;
}
}else{
return true;
}
}else{
self::destroyCurrentSession();
return false;
}
}
}
}
?>