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 "
Le 23 Novembre 2019, a été dévoilé un buste en bronze de Paul Feller, à l’occasion de la journée dédiée au 40ème anniversaire de sa disparition, en présence de personnalités locales.
Il s’agit d’une reproduction d’un original du sculpteur Raymond HUARD, réalisée par la fonderie de la Fondation de Coubertin et financée par un adhérent des Amis de Paul Feller.
Vous pouvez découvrir cette oeuvre, dans une salle jouxtant l’accueil de la Maison de l’Outil et de la Pensée Ouvrière à Troyes, entourée par une riche collection d’enclumes anciennes.