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asn_filter
Author | SHA1 | Date |
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cynic | e6c77eca73 | |
cynic | 93b1aeedaa | |
cynic | 077e9391f2 | |
cynic | 815223b9dc |
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@ -40,6 +40,19 @@ class config{
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//["fumo_plushies", 1006],
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//["minecraft", 848]
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];
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// the following refer to ASN whitelisting
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// if you enable ASN whitelisting, no other bot protection will be used
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// this doesn't work if you put it behind cloudflare
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const ASN_WHITELIST = 0;
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// the ASNs that should be allowed
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const ASN_WHITELIST_LIST = [
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//example:
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//"1337"
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];
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// the whois server to hit up
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const WHOIS_SERVER = "whois.cymru.com";
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const WHOIS_PORT = 43;
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// If this regex expression matches on the user agent, it blocks the request
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// Not useful at all against a targetted attack
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@ -0,0 +1,35 @@
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<?php
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function check_asn($ip, $asns, $whois_server, $port){
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$data = $ip . "\n";
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$socket = stream_socket_client("tcp://$whois_server:$port", $errno, $errstr);
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if (!$socket){
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echo "yo shits fucked cant hit up the whois serber: $errstr ($errno)\n";
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exit();
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}
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fwrite($socket, $data);
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$response = "";
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while (!feof($socket)){
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$response .= fgets($socket, 128);
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}
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fclose($socket);
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$response = explode("\n", $response);
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if (count($response) < 2){
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echo "sup facilities exploded no response for ip: $errstr ($errno)\n";
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die();
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}
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$response = explode(" | ", $response[1]);
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foreach ($asns as $asn){
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if ($asn == trim($response[0])){
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return true;
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}
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}
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return false;
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}
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?>
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@ -1,9 +1,32 @@
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<?php
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include "lib/asn.php";
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class bot_protection{
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public function __construct($frontend, $get, $filters, $page, $output){
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// check if we're operating on an ASN whitelist
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if (config::ASN_WHITELIST == 1){
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$response = check_asn($_SERVER["REMOTE_ADDR"], config::ASN_WHITELIST_LIST, config::WHOIS_SERVER, config::WHOIS_PORT);
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if (!$response){
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http_response_code(401);
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echo json_encode([
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"status" => "the ASN whitelist is enabled, and you ain't on it."
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]);
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die();
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}
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else{
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apcu_inc("real_requests");
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if($output === true){
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$frontend->loadheader(
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$get,
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$filters,
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$page
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);
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}
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}
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return;
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}
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// check if we want captcha
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if(config::BOT_PROTECTION !== 1){
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