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Preventing a DDoS with the zrl parameter.

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Michael Vogel 2015-03-28 08:29:01 +01:00
commit 0206f447e1
2 changed files with 30 additions and 0 deletions
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14
boot.php
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@ -2181,6 +2181,20 @@ function get_my_url() {
function zrl_init(&$a) {
$tmp_str = get_my_url();
if(validate_url($tmp_str)) {
// Is it a DDoS attempt?
// The check fetches the cached value from gprobe to reduce the load for this system
$urlparts = parse_url($url);
$result = Cache::get("gprobe:".$urlparts["host"]);
if (!is_null($result)) {
$result = unserialize($result);
if ($result["network"] == NETWORK_FEED) {
logger("DDoS attempt detected for ".$urlparts["host"], LOGGER_DEBUG);
return;
}
}
proc_run('php','include/gprobe.php',bin2hex($tmp_str));
$arr = array('zrl' => $tmp_str, 'url' => $a->cmd);
call_hooks('zrl_init',$arr);