106 lines
No EOL
2.4 KiB
PHP
106 lines
No EOL
2.4 KiB
PHP
<?php
|
|
require("../php/config.php");
|
|
require("network.php");
|
|
require("bencoder.php");
|
|
$DB_NAME = "torrent";
|
|
$ANN_MIN_INTERVAL = 15;
|
|
$ANN_INTERVAL = 60;
|
|
|
|
function bad_request($msg)
|
|
{
|
|
http_response_code(400);
|
|
echo($msg);
|
|
exit;
|
|
}
|
|
|
|
function do_error($msg)
|
|
{
|
|
die($msg);
|
|
}
|
|
|
|
function hash_decode($urldata)
|
|
{
|
|
return bin2hex(rawurldecode($urldata));
|
|
}
|
|
|
|
function hash_encode($str)
|
|
{
|
|
return hex2bin($str);
|
|
}
|
|
|
|
|
|
if (!isset($_GET["info_hash"])) {
|
|
bad_request("No info_hash");
|
|
}
|
|
|
|
try {
|
|
$hash = hash_decode($_GET["info_hash"]);
|
|
$hashLen = strlen($hash);
|
|
if ($hashLen < 40 || $hashLen > 40) {
|
|
bad_request("Invalid info_hash");
|
|
}
|
|
} catch (Exception $e) {
|
|
bad_request("Invalid info_hash");
|
|
}
|
|
|
|
try {
|
|
if (isset($_GET["ip"])) {
|
|
$ip = urldecode($_GET["ip"]);
|
|
} else if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
|
|
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
|
|
} else {
|
|
$ip = $_SERVER["REMOTE_ADDR"];
|
|
}
|
|
} catch (Exception $e) {
|
|
bad_request("Invalid ip");
|
|
}
|
|
|
|
if (!$ipAddr = inet_pton($ip)) {
|
|
bad_request("Invalid ip");
|
|
}
|
|
|
|
if (isset($_GET["port"])) {
|
|
$port = intval(urldecode($_GET["port"]));
|
|
} else {
|
|
bad_request("No port");
|
|
}
|
|
|
|
$externalIp = get_external_ip();
|
|
|
|
$date = new DateTime("now");
|
|
$now = $date->format('Y-m-d H:i:s');
|
|
|
|
$conn = new PDO("mysql:host=$DB_HOST;dbname=$DB_NAME", $DB_USER, $DB_PASS);
|
|
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
|
|
|
|
$stmt = $conn->prepare("REPLACE INTO `peers` (info_hash, ip, port, update_time) VALUES (:info_hash, :ip, :port, :update_time)");
|
|
$stmt->bindValue(":info_hash", $hash, PDO::PARAM_STR);
|
|
$stmt->bindValue(":ip", is_loopback($ip) ? $externalIp : $ip, PDO::PARAM_STR);
|
|
$stmt->bindValue(":port", $port, PDO::PARAM_INT);
|
|
$stmt->bindValue(":update_time", $now, PDO::PARAM_STR);
|
|
$stmt->execute();
|
|
|
|
$peers = '';
|
|
|
|
$stmt = $conn->prepare("SELECT ip, port FROM `peers` WHERE info_hash = :info_hash");
|
|
$stmt->bindValue(":info_hash", $hash, PDO::PARAM_STR);
|
|
$stmt->execute();
|
|
$stmt->bindColumn(1, $peerIp);
|
|
$stmt->bindColumn(2, $peerPort);
|
|
while ($stmt->fetch(PDO::FETCH_BOUND)) {
|
|
if (is_loopback($peerIp) && !is_loopback($ip)) {
|
|
$peerIp = $externalIp;
|
|
} else if ($peerIp == $externalIp && is_loopback($ip)) {
|
|
$peerIp = ip4_loopback();
|
|
}
|
|
$peers .= pack("Nn", inet_pton($peerIp), $peerPort);
|
|
}
|
|
|
|
$response = array(
|
|
"min interval" => $ANN_MIN_INTERVAL,
|
|
"interval" => $ANN_INTERVAL,
|
|
"peers" => $peers,
|
|
);
|
|
echo(bencode($response));
|
|
|
|
?>
|