function defender($ret = false)
{
$info = Request::info();
if (self::$ip) {
if (in_array($info['ip'], self::$ip)) {
$hit['ip'] =& $info['ip'];
goto block;
}
}
if (self::$ajax) {
var_dump($info);
if (!$info['ajax']) {
$hit['ajax'] =& $info['ajax'];
goto block;
}
}
if (self::$refer) {
while (list($k, $v) = each(self::$refer)) {
if (stripos($info['refer'], $v) !== false) {
$hit['refer'] =& $info['refer'];
goto block;
}
}
}
if (self::$session) {
$session = Request::session();
while (list($k, $v) = each(self::$session)) {
if (!isset($session[$v])) {
$hit['session'] = $v;
goto block;
}
}
}
if (self::$cookie) {
$cookie = Request::cookie();
while (list($k, $v) = each(self::$cookie)) {
if (!isset($cookie[$v])) {
$hit['cookie'] = $v;
goto block;
}
}
}
if (self::$post) {
$post = Request::post();
while (list($k, $v) = each(self::$post)) {
if (!isset($post[$v])) {
$hit['post'] = $v;
goto block;
}
}
}
if (self::$get) {
$get = Request::get();
while (list($k, $v) = each(self::$get)) {
if (!isset($get[$v])) {
$hit['get'] = $v;
goto block;
}
}
}
if (self::$frequency) {
$ssid = 'frequency';
$data = json_decode(session_get($ssid), 1);
$data[$ssid][] = APP_START_TIME;
list($k, $v) = each(self::$frequency);
$size = count($data[$ssid]);
if ($size > $v) {
$sec = APP_START_TIME - $data[$ssid][$size - $v];
if ($sec < $k) {
$data['block'] = APP_START_TIME + self::$blockTime;
///超出限制
}
if ($size > ($k + 1) * ($v + 1)) {
unset($data[$ssid]);
}
}
if (isset($data['block'])) {
if ($data['block'] < APP_START_TIME) {
unset($data['block']);
} else {
session_set($ssid, $data);
$t = intval($data['block'] - APP_START_TIME);
$this->frequencyBlock($t);
exit;
}
}
session_set($ssid, $data);
}
block:
if (isset($hit)) {
if ($ret) {
return $hit;
} else {
$this->block($hit);
}
} else {
return null;
}
}
