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286 lines (258 loc) · 8.5 KB
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<?php
require_once(dirname(__FILE__).'/config.php');
require_once(dirname(__FILE__).'/xgfw_func.php');
$xgfw_ban = require(dirname(__FILE__).'/black_list_sorted.php');
$xgfw_pass = require(dirname(__FILE__).'/white_list_sorted.php');
define('XGFW_TEST',1);
@session_start();
if($_GET['destory']==1){
sessionDestroy();
}
if($_GET['action']=='emptyCnt'){
$c = new SaeCounter ();
$cnt = $c->getall();
foreach($cnt as $key=>$val){
$c->remove($key);
}
echo "counter empty!";
}
$white =false;
$ip = xGfw_GetIP();
if(isset($_GET['ip']))
$ip = $_GET['ip'];
if(isset($_GET['url']))
$url = $_GET['url'];
if(isset($_GET['refer']))
$refer = $_GET['refer'];
if(isset($_GET['ua']))
$refer = $_GET['ua'];
echo "<h3 style='color:lightblue;margin-bottom:0;'>ip:".$ip."</h3></br>";
xGfw_MmcWithCounter($ip);
$white = xGfw_HardCode_Ban($ip,$xgfw_ban,$xgfw_pass);
if($white){
echo "<p style='color:green'>is_in_white_list:".$white."</p></br>";
}else{
echo "<p style='color:orange'>is_in_white_list:".$white."</p></br>";
}
xGfw_BANB_Http_Defined($url,$refer,$ua);
echo "kvdb ..here"."</br>";
xGfw_Kvdb($ip,1);//ban by kvdb action
echo "<h2 style='color:green'>No red text means passed</h2>";
//ban functions
function xGfw_HardCode_Ban($ip="127.0.0.1",$ban,$pass){
$ips = explode( ',' ,$ip );
if(defined('XGFW_TEST')){
echo "<p style='color:lightblue;margin-bottom:0;'>ips:";
print_r($ips);
echo "</p></br>";
}
if( !xGfw_binary_search_sorted($pass,$ips[0]) ){
if(xGfw_binary_search_sorted($ban,$ips[0])){
$_SESSION[SESSION_BAN_ID] = 1;
xGfw_ShowNotice ( 'ddos_reflect','in PHP coded black_list' );
exit;
}
return 0;
}
$_SESSION[SESSION_PASSE_ID]=1;
return 1;
}
// for xGFW
function xGfw_Kvdb($ip = "127.0.0.1") {
$c = new SaeCounter ();
if (! $c->get ( 'visitCnt' )) {
$c->create ( 'visitCnt' );
}
if ($c->incr ( 'visitCnt' ) > CNT_CYCLE) {
$c->set ( 'visitCnt', 0 );
} else if ($c->get ( 'visitCnt' ) < CNT_CYCLE_WORK) {
// filtering out and ban the frequency visit ip
$kv = new SaeKV ();
$ret = $kv->init ();
if ($ret == false) {
xGfw_ShowNotice ( 'Unvaliable','KVDB NOT OK' );
} else {
if (defined('XGFW_TEST')) {
//$ip = xGfw_GetIP ();
$cnt = $kv->get ( $ip );
$isbanned = $kv->get ( 'ban_' . $ip );
$pre_time = $kv->get ( 'pre_time' . $ip );
echo "ip:" . $ip . "count:" . $cnt . "banned?:" . $isbanned . "pre_time:" . $pre_time."</br>";
}
//$ip = xGfw_GetIP ();
$ret = 0;
$ret = $kv->get ( 'ban_' . $ip );
if ($ret) {
xGfw_ShowNotice ( 'ddos_reflect','ban_' . $ip.' in KVDB BAN list' );
}
$pre_time = time ();
if (! $kv->get ( 'pre_time' . $ip )) {
$kv->set ( 'pre_time' . $ip, time () );
} else {
$pre_time = $kv->get ( 'pre_time' . $ip );
}
if (time () < $pre_time + TIME_GAP) {
$ret = $kv->get ( $ip );
if (! $ret) {
$kv->set ( $ip, 1 );
} else {
$ret = $kv->get ( $ip );
$ret ++;
if ($ret >= LIMIT) {
$kv->set ( 'ban_' . $ip, 1 );
xGfw_ShowNotice ( 'ddos_reflect','ban_' . $ip.'first dump in KVDB BAN list' );
}
$kv->set ( $ip, $ret );
}
} else {
$kv->set ( $ip, 1 );
$kv->set ( 'pre_time' . $ip, time () );
}
}
}
}
function xGfw_BANB_Http_Defined($url="",$refer="",$ua = ""){
if($url == "")
$url= $_SERVER["REQUEST_URI"];
if($refer=="")
$refer = $_SERVER["HTTP_REFERER"];
if($ua == "")
$ua = $_SERVER["HTTP_USER_AGENT"];
if(defined('XGFW_TEST')){
echo "BAN_BY_HTTP_DEFINED PROCESSING</br>";
echo "url:".$url.";</br>refer:".$refer.";</br>ua:".$ua.";</br>";
}
if(strstr($refer,QUICK_BAN_REFER)){
xGfw_ShowNotice ( 'ddos_reflect','<strong style="background:black">'.$refer.'</strong>'.' refer ban match with strstr');
}
if(BAN_BY_URL){
foreach($GLOBALS["xgfw_ban_urls"] as $key=>$val){
if(preg_match($val,$url)){
xGfw_ShowNotice ( 'ddos_reflect','<strong style="background:black">'.$url.'</strong>'.' url ban match by rule'.'<strong style="background:black">'.$val.'</strong>' );
}
if(defined('XGFW_TEST')){
echo "url ban rule:".'<strong style="color:white;background:black">'.$val.'</strong>'." not match</br>";
}
}
}
if(BAN_BY_REFER){
foreach($GLOBALS["xgfw_ban_refers"] as $key =>$val){
if(preg_match($val,$refer)){
xGfw_ShowNotice ( 'ddos_reflect','<strong style="background:black">'.$refer.'</strong>'.' refer ban match' );
}
if(defined('XGFW_TEST')){
echo "refer ban rule:".'<strong style="color:white;background:black">'.$val.'</strong>'." not match</br>";
}
}
}
if(BAN_BY_UA){
foreach($GLOBALS["xgfw_ban_uas"] as $key =>$val){
if(preg_match($val,$ua)){
xGfw_ShowNotice ( 'ddos_reflect','<strong style="background:black">'.$ua.'</strong>'.' ua ban match' );
}
if(defined('XGFW_TEST')){
echo "ua ban rule:".'<strong style="color:white;background:black">'.$val.'</strong>'." not match</br>";
}
}
}
if(defined('XGFW_TEST')){
echo "BAN_BY_HTTP_DEFINED END</br>";
}
}
// for xGFW
function xGfw_MmcWithCounter($ip = "127.0.0.1") {
$c = new SaeCounter ();
if (! $c->get ( 'visitCnt_mmc' )) {
$c->create ( 'visitCnt' );
}
if(! $c->get('ipListNum')){
$c->create('ipListNum');
//$c->set('ipListNum',1);
}
if ($c->incr ( 'visitCnt_mmc' ) > CNT_CYCLE_MMC) {
$c->set ( 'visitCnt_mmc', 0 );
} else if ($c->get ( 'visitCnt_mmc' ) < CNT_CYCLE_WORK_MMC) {
// filtering out and ban the frequency visit ip
echo "_SESSION[banned]=".$_SESSION[SESSION_BAN_ID]."</br>";
if ($_SESSION[SESSION_BAN_ID]==1) {
xGfw_ShowNotice ( 'ddos_reflect','ban_' . $ip.' in Session mmc' );
}
$pre_time = time ();
if (!isset($_SESSION['pre_time']) || $_SESSION['pre_time']=='') {
$_SESSION['pre_time']=time();
} else {
$pre_time = $_SESSION['pre_time'];
}
if (time () < $pre_time + TIME_GAP) {
prepareInCnt($c,$ip);
if ($c->incr($ip) >= LIMIT_SESSION) {
$_SESSION[SESSION_BAN_ID] = 1;
xGfw_ShowNotice ( 'ddos_reflect','ban_' . $ip.'first Banned with session' );
}
} else {
prepareInCnt($c,$ip);
$c->set($ip,1);
$_SESSION['pre_time']=time();
}
}
if (defined('XGFW_TEST')) {
echo "xGfw_MmcWithCounter passed</br>";
echo "_SESSION[pretime]=".$_SESSION['pre_time']."</br>";
echo "_SESSION[banned]=".$_SESSION[SESSION_BAN_ID]."</br>";
echo "IP_COUNT_BY_Counter:".$c->get($ip)."</br>";
echo "ipListNum:".$c->get('ipListNum')."</br>";
echo "_SESSION_PASS".$_SESSION[SESSION_PASSE_ID]."</br>";
}
}
function prepareInCnt($c,$ip){
$ret = $c->get($ip);
if(!$ret){
if($c->incr('ipListNum')>MAX_COUNTER){
queue_pop();
}
$c->create($ip);
queue_push($ip);
}
}
function queue_pop(){
$mmc=memcache_init();
if($mmc==false){
xGfw_ShowNotice ( 'Unvaliable','MMC NOT OK' );
}else{
$queue = memcache_get($mmc,"xgfw_iplist");
array_shift($queue);
memcache_set($mmc,"xgfw_iplist",$queue);
}
}
function queue_push($ip){
$mmc=memcache_init();
if($mmc==false){
xGfw_ShowNotice ( 'Unvaliable','MMC NOT OK' );
}else{
$queue = memcache_get($mmc,"xgfw_iplist");
if($queue ==''){
$queue = array($ip);
}else{
array_push($queue,$ip);
}
memcache_set($mmc,"xgfw_iplist",$queue);
}
}
function pass_by_session(){
if($_SESSION[SESSION_PASSE_ID] ==1){
return true;
}
return false;
}
function ban_by_session(){
if ($_SESSION[SESSION_BAN_ID]==1) {
xGfw_ShowNotice ( 'ddos_reflect','ban_' . $ip.' in Session' );
}
}
function sessionDestroy(){
//@session_destroy();
$_SESSION[SESSION_PASSE_ID] =0;
$_SESSION[SESSION_BAN_ID] = 0;
echo "Session Destoryed</br>".$_SESSION[SESSION_BAN_ID];
}
?>