define('wpadtiddos_seconds_limit_GET',1);
define('wpadtiddos_seconds_limit_XHR',3);
class wp_antiddos
{
var $enable = true;
var $hits_limit_GET = 3; // hits limit for GET requests (per wpadtiddos_seconds_limit_GET second)
var $hits_limit_XHR = 3; // hits limit for XHR requests (per wpadtiddos_seconds_limit_XHR second)
var $seconds_limit_POST = 3; // seconds limit for POST requests
var $seconds_limit_AUTH = 3; // seconds limit for AUTH (Password) requests
var $visitor; // status of visitor = raw|cool|warm|hot
var $warm_level; // number of hits for last $seconds_limit seconds that cause visitor`s status turn to warm
var $auto = true; // block visitors by AntiDDOS
var $delay_time = 30; // seconds of delay of blocked visitors
var $block_cnet = true; // block all C class net.
var $cloudflare = true; // convert Cloudflare HTTP_CF_CONNECTING_IP to REMOTE_ADDR
var $send_header = false; // send "WP_AntiDDOS: yes" header for debug purposes
var $only_params_enabled = false; // Only Params feature enabled
var $only_params = 's'; // the only GET/POST params that trigger checkup
var $status, $error_msg;
var $conn; // mysql connection
var $hits = false; // actual hits number for current IP
var $cookie = ''; // wpantiddos cookie value that prevents anti DDOS processing
var $table_name = '';
var $pass_param = 'pwd'; // name of POST parameter that indentify Login (AUTH) request
var $delay_message = 'Our server is currently overloaded, your request will be repeated automatically in %s seconds';
var $delay_message_auth = 'Our server is currently overloaded, your request will be repeated automatically in %s seconds';
public function __construct()
{
if (isset($GLOBALS['wp_antiddos_instance']))
return;
else
$GLOBALS['wp_antiddos_instance'] = &$this;
if ($_SERVER['REMOTE_ADDR']=='127.0.0.1')
return;
$this->conn = mysqli_connect(DB_HOST,DB_USER,DB_PASSWORD);
$ok = mysqli_select_db($this->conn,DB_NAME);
if (!$ok) return false;
$this->get_options();
// plugin disabled
if (!$this->enable) return;
// current request is admin's one
if (isset($_COOKIE['wpantiddos']) && $_COOKIE['wpantiddos']==$this->cookie) return;
if ($this->only_params_enabled)
if (!$this->only_param_detected())
return;
// detect request type and limits
if ($this->xhr_request())
{
if ($this->hits_limit_XHR=='ANY') return;
$request_type = 'xhr';
$hits_limit = $this->hits_limit_XHR;
$seconds_limit = wpadtiddos_seconds_limit_XHR;
}
elseif ($_POST && isset($_POST[$this->pass_param]) )
{
if ($this->seconds_limit_AUTH=='ANY') return;
$request_type = 'auth';
$seconds_limit = $this->seconds_limit_AUTH;
$this->only_params .= ' '.$this->pass_param;
$hits_limit = 1;
}
elseif ($_POST)
{
if ($this->seconds_limit_POST=='ANY') return;
$request_type = 'post';
$hits_limit = 1;
$seconds_limit = $this->seconds_limit_POST;
}
else
{
if ($this->hits_limit_GET=='ANY') return;
$request_type = 'get';
$hits_limit = $this->hits_limit_GET;
$seconds_limit = wpadtiddos_seconds_limit_GET;
}
if ($this->send_header)
header("WP_AntiDDOS: yes");
if ($this->cloudflare)
{
if (isset($_SERVER['HTTP_CF_CONNECTING_IP']))
$_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_CF_CONNECTING_IP'];
}
$this->ip = $_SERVER['REMOTE_ADDR'];
if ($this->block_cnet)
$this->ip = substr($this->ip,0,strrpos($this->ip,'.')+1);
$this->warm_level = ceil($hits_limit/2);
try
{
$res = mysqli_query($this->conn,"SELECT count(*) kount FROM $this->table_name WHERE ip='".addslashes($this->ip)."' AND tstamp>".(time()-$seconds_limit)." AND type='$request_type'");
$row = mysqli_fetch_assoc($res);
if (!$row)
$this->error_msg = 'Error detected';
$this->hits = @$row['kount']+1; // consider current request too
if ($this->hits==0) // if no hits from this IP
$this->visitor = "new";
elseif ($this->hits>$hits_limit)
$this->visitor = "hot";
elseif ($this->hits>=$this->warm_level)
$this->visitor = "warm";
else
$this->visitor = "cool";
// add current hit
mysqli_query($this->conn,"INSERT INTO $this->table_name SET ip='$this->ip', type='$request_type', tstamp=".time());
// cleanup ip list
$clear_time = max($this->delay_time,$seconds_limit);
mysqli_query($this->conn,"DELETE FROM $this->table_name WHERE tstamp<".(time()-$clear_time));
}
catch(Exception $e)
{
$this->error_msg = $e->getString();
$this->status = 'error';
mysqli_close($this->conn);
return;
}
mysqli_close($this->conn);
if (!empty($this->error_msg) )
{
$this->status = 'error';
}
if ($this->auto && $this->visitor=='hot')
{
header('HTTP/1.0 503 Service Unavailable');
header('Status: 503 Service Unavailable');
header("Retry-After: ".($this->delay_time+1)); // submit form first if POST request
if (!$_POST)
print "
Your DAILY VIRGO HOROSCOPE(August 21st to September 20th)Predictions for the date 10 12 2023 are Given Below:
Daily Predictions VIRGO
There could change, fun and excitement in the air. Expect new opportunities coming to you, more communications or some good news. Avoid stress due to changes.
Let your request not come in strife with individuals in power at office or home front. Maintain a strategic distance from emphasis on your perspectives. Assume your parts well this time.