public static function fence($yl_cc)
{
$c_agentip = 0;
(!empty($_SERVER['HTTP_X_FORWARDED_FOR']) || !empty($_SERVER['HTTP_CLIENT_IP'])) && ($c_agentip = 1);
$timestamp = time();
$onlineip = mod_defend::get_ip();
$c_banedip = mod_file::read(PATH_DATA . '/log/banip.txt');
//被banip文件
if ($c_ipoffset = strpos($c_banedip . "\n", "\t" . $onlineip . "\n")) {
$c_ltt = (int) substr($c_banedip, $c_ipoffset - 10, 10);
// 获取屏蔽的时间
if ($timestamp - $c_ltt < 20) {
if ($timestamp - $c_ltt > 5) {
mod_file::write(PATH_DATA . '/log/banip.txt', str_replace($c_ltt . "\t" . $onlineip, $timestamp . "\t" . $onlineip, $c_banedip));
}
exit("Turn off CC, Please refresh after 20 secs");
} else {
mod_file::write(PATH_DATA . '/log/banip.txt', str_replace("\n" . $c_ltt . "\t" . $onlineip, '', $c_banedip));
}
}
$c_banip_a = explode("\n", $c_banedip);
if ($c_agentip == 1 || $yl_cc == 2) {
$c_time = 0;
if ($c_fp = @fopen(PATH_DATA . '/data/log/ccip.txt', 'rb')) {
flock($c_fp, LOCK_SH);
$c_size = 27 * 500;
fseek($c_fp, -$c_size, SEEK_END);
while (!feof($c_fp)) {
$c_value = explode("\t", fgets($c_fp, 29));
if ($timestamp - $c_value[0] < 10 && trim($c_value[1]) == $onlineip) {
$c_time++;
if ($c_time > 15) {
break;
}
}
}
fclose($c_fp);
}
if ($c_time > 15) {
array_push($c_banip_a, $timestamp . "\t" . $onlineip);
$c_banip_a = array_slice($c_banip_a, -150);
mod_file::write(PATH_DATA . '/log/banip.txt', implode("\n", $c_banip_a));
exit('Turn off CC');
}
if (@filesize(PATH_DATA . '/log/ccip.txt') > 27 * 1000) {
mod_file::rm(PATH_DATA . '/log/ccip.txt');
}
mod_file::write(PATH_DATA . '/log/ccip.txt', $timestamp . "\t" . $onlineip . "\n", 'ab');
}
if (false == self::post_verify()) {
exit('undefined_action');
}
}
public static function empty_some_cache($cache_name = '')
{
if (empty($cache_name)) {
return false;
}
if ($dh = opendir(PATH_DATA . '/cache')) {
while (false !== ($file = readdir())) {
if (strpos($file, $cache_name) !== false) {
$cache_content = serialize(array());
$file_path = PATH_DATA . '/cache/' . $file;
mod_file::write($file_path, $cache_content);
}
}
}
}
/**
* MySQL 日志
*
* @param string $message
* @param string $errno[optional]
* @return void
*/
public static function mysql_log($message, $sql_info = '', $errno = 0)
{
$message = strtr($message, array($GLOBALS['database']['db_host'] => 'DB_HOST'));
// mysql 日志记录 开始
$_postdata = !empty($_POST) ? $_POST : 'NO_POSTDATA';
$record_name = strtr(htmlspecialchars(defined('USERNAME') && USERNAME, ENT_QUOTES), array('|' => '|'));
$record_URI = strtr(htmlspecialchars($_SERVER['PHP_SELF'] . '?' . $_SERVER['QUERY_STRING'], ENT_QUOTES), array('|' => '|'));
$timestamp = time();
$onlineip = mod_defend::get_ip();
$new_record = "<?die;?>|{$record_name}|{$record_URI}|{$sql_info}|{$errno}{$message}|{$timestamp}|{$onlineip}|{$_postdata}|\n";
/*$new_record="<?die;?>|$record_name|$record_URI|$msg|$sqlerror|$timestamp|$onlineip|$_postdata|\n";*/
$mysqllogfile = PATH_DATA . '/log/mysql_error.php';
mod_file::write($mysqllogfile, $new_record, 'ab');
}