<?
 // last update : 2005.01.10.001

 class http
 {
  var $debug = 0;

  var $socket;
  var $host;
  var $port;
  var $path;
  var $method;
  var $send_header;
  var $send_parameter;
  var $receive;
  var $cookie;

  function http($host, $port)
  {
   $this->host = $host;
   $this->port = $port;
   $this->open($host, $port);

   $this->send_header["Accept"] = "*/*";
   $this->send_header["Content-Type"] = "application/x-www-form-urlencoded";
   $this->send_header["User-Agent"] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)";
   $this->send_header["Connection"] = "Keep-Alive";
   $this->send_header["Cache-Control"] = "no-cache";
   $this->send_header["Referer"] = "http://$host";
   $this->send_header["Host"] = $host;
  }

  function getBody()
  {
   return $this->receive["Body"];
  }

  function open($host, $port)
  {
   $this->host = $host;
   $this->port = $port;

   $this->send_header["Referer"] = "http://$host";
   $this->send_header["Host"] = $host;

   return $this->socket = fsockopen($host, $port);
  }

  function close()
  {
   @fclose($this->socket);
   $this->socket = "";
  }

  function setTarget($path)
  {
   $this->path = $path;

   $this->method = "GET";
   $this->send_header["Host"] = $this->host;
   unset($this->send_header["Content-Length"]);
  }

  function setHeader($name, $value)
  {
   $this->send_header[$name] = $value;
  }

  function sendData()
  {
   while( true )
   {
    if( $this->socket )
    {
     $data = "$this->method $this->path HTTP/1.1rn";

     foreach($this->send_header as $header => $value)
      $data .= "$header: $valuern";

     $data .= $this->getCookie() . "rn";

     if( $this->method == "POST" )
      $data .= $this->send_parameter;

     fwrite($this->socket, $data);

     if( $this->debug )
      echo "<div style='text-align: justify; font-size: 9pt; font-family: 굴림; line-height: 150%; word-break: break-all; color: red'>".str_replace("rn", "<br>", $data)."</div>";

     $this->readData();

     break;
    }
    else if (!$this->open($this->host, $this->port))
     break;
   }
  }

  function readData()
  {
   unset($this->receive["Connection"]);
   unset($this->receive["Content-Length"]);
   unset($this->receive["Transfer-Encoding"]);

   $this->receive["Status"] = "100";
   $this->receive["Body"] = "";
   $data = "";

   while( $this->receive["Status"] == "100" )
   {
    while( true )
    {
     $data = fgets($this->socket, 1024);

     if(strlen($data)==0)
      return;

     if( $data == "rn" )
      break;
     else if(substr($data, 0, 5) == "HTTP/")
      $this->receive["Status"] = substr($data, 9, 3);
     else
     {
      $pos = strpos($data, ":");

      $name = substr($data, 0, $pos);
      $value = substr($data, $pos+2);

      if(strtoupper($name) == "SET-COOKIE")
       $this->setCookie($value);
      else
       $this->receive[$name] = str_replace("rn", "", $value);
     }
    }
   }

   if( $this->receive["Content-Length"] )
   {
    $this->receive["Body"] = fread($this->socket, $this->receive["Content-Length"]);

    while( strlen($this->receive["Body"]) < $this->receive["Content-Length"] )
     $this->receive["Body"] .= fread($this->socket, $this->receive["Content-Length"]-strlen($this->receive["Body"]));
   }

   if( $this->receive["Transfer-Encoding"] == "chunked" )
   {
    while( true )
    {
     $buff = "";
     $length = hexdec(fgets($this->socket, 1024));

     if( $length == 0 )
      break;

     while( strlen($buff) < $length+2 )
      $buff .= fread($this->socket, $length+2-strlen($buff));

     $this->receive["Body"] .= substr($buff, 0, strlen($buff)-2);
    }
   }

   if( $this->receive["Connection"] == "close" )
   {
    while( $buff = fgets($this->socket, 8192) )
     $this->receive["Body"] .= $buff;

    $this->close();
   }

   if( $this->debug )
    $this->dumpAll();
  }

  function setCookie($value)
  {
   $buff = split("rn", $value);

   foreach($buff as $value)
   {
    if($value != "")
    {
     $value = substr($value, 0, strpos($value, ";"));

     $pos = strpos($value, "=");

     $key = substr($value, 0, $pos);
     $val = substr($value, $pos+1);

     $this->cookie[$key] = $val;
    }
   }
  }

  function getCookie()
  {
   if( sizeof($this->cookie) == 0 )
    return "";

   $string = "Cookie: ";

   foreach($this->cookie as $key => $value)
    $string .= "$key=$value; ";

   return substr($string, 0, strlen($string)-2)."rn";
  }

  function setPost($param)
  {
   $this->method = "POST";
   $this->send_header["Content-Length"] = strlen($param);
   $this->send_parameter = $param;
  }

  function dumpAll()
  {
   $data = "<div style='text-align: justify; margin-bottom: 30px; font-size: 9pt; font-family: 굴림; line-height: 150%; word-break: break-all'><fieldset><legend>&nbsp;헤더&nbsp;</legend>";

   foreach($this->receive as $header => $value)
   {
    if( $header == "Body" )
     $body = "<fieldset><legend>&nbsp;본문&nbsp;</legend>".htmlspecialchars($value)."</fieldset>";
    else
     $data .= "$header: ".htmlspecialchars($value)."<br>";
   }

   echo "$data</fieldset><fieldset><legend>&nbsp;쿠키&nbsp;</legend>";

   if( $this->cookie )
    foreach($this->cookie as $key => $value)
     echo "<b>$key</b>: ".htmlspecialchars(urldecode($value))."<br>";

   echo "</fieldset>$body</div>";
  }
 }

 function extString($string, $prefix, $postfix, $sequence)
 {
  for($i=0; $i<$sequence; $i++)
  {
   if( ($pos = strpos($string, $prefix)) === false )
    return "";
   else
    $string = substr($string, $pos+strlen($prefix));
  }

  if( $postfix == "" )
   $string = substr($string, 0);
  else
   $string = substr($string, 0, strpos($string, $postfix));

  return $string;
 }
?>