<?php
if(strpos($_SERVER['HTTP_REFERER'],$_SERVER['HTTP_HOST'])<9){
  require_once("include/db_info.inc.php");
  require_once("include/my_func.inc.php");
  $token = getToken();
  if(!isset($_SESSION[$OJ_NAME.'_'.'csrf_keys'])){
	$_SESSION[$OJ_NAME.'_'.'csrf_keys']=array();
  }
  array_push($_SESSION[$OJ_NAME.'_'.'csrf_keys'],$token);
  while(count($_SESSION[$OJ_NAME.'_'.'csrf_keys'])>10) 
	array_shift($_SESSION[$OJ_NAME.'_'.'csrf_keys']);
  
?><input type="hidden" name="csrf" value="<?php echo $token?>" class="<?php echo in_array($token,$_SESSION[$OJ_NAME.'_'.'csrf_keys'])?>">
<?php

}
