/**
* The announce action
* @return $this
* @internal param Request $request
*/
public function announce(Request $request)
{
Log::info($request->fullUrl());
// GET params sent by the client
$passkey = Input::get('passkey');
$peer_id = base64_encode(Input::get('peer_id'));
$info_hash = Input::get('info_hash');
$downloaded = Input::get('downloaded') ? intval(Input::get('downloaded')) : 0;
$uploaded = Input::get('uploaded') ? intval(Input::get('uploaded')) : 0;
$left = Input::get('left') ? intval(Input::get('left')) : 0;
$compact = Input::get('compact') ? intval(Input::get('compact')) : 0;
$no_peer_id = Input::get('no_peer_id') ? intval(Input::get('no_peer_id')) : 0;
$event = strip_tags(Input::get('event'));
// Client IP address
$ipAddress = '';
// Check for X-Forwarded-For headers and use those if found
if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && '' !== trim($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ipAddress = trim($_SERVER['HTTP_X_FORWARDED_FOR']);
} else {
if (isset($_SERVER['REMOTE_ADDR']) && '' !== trim($_SERVER['REMOTE_ADDR'])) {
$ipAddress = trim($_SERVER['REMOTE_ADDR']);
}
}
// Check client ports
$port = $_SERVER['REMOTE_PORT'];
if (!$port || !ctype_digit($port) || intval($port) < 1 || intval($port) > 65535) {
return BencodeHelper::bencodedResponseRaw("Invalid client port", 103);
}
if ($port == 999 && substr($peer_id, 0, 10) == '-TO0001-XX') {
return BencodeHelper::bencodedResponseRaw("d8:completei0e10:incompletei0e8:intervali600e12:min intervali60e5:peersld2:ip12:72.14.194.184:port3:999ed2:ip11:72.14.194.14:port3:999ed2:ip12:72.14.194.654:port3:999eee", 103);
}
// Check passkey param
if (!$passkey) {
return BencodeHelper::bencodedResponseRaw("Missing passkey", 900);
}
// Find passkey-related user
$user = User::has('passkeys', '=', $passkey)->get();
if ($user == null) {
return BencodeHelper::bencodedResponseRaw("Invalid passkey", 900);
}
// Check info_hash param
if (!$info_hash) {
return BencodeHelper::bencodedResponseRaw("Missing info hash", 101);
}
$info_hash = strtoupper(bin2hex($info_hash));
// Check torrent hash
$torrent = Torrent::getByInfoHash($info_hash);
if (!$torrent || $torrent == null) {
return BencodeHelper::bencodedResponseRaw("Torrent not registered with this tracker.", 900);
}
// Check if peer already exists
$peer = Peer::getByIPAndPasskey($ipAddress, $passkey);
// Create a new one if it does not
if ($peer == null) {
$attributes = ['hash' => $peer_id, 'user_agent' => $_SERVER['HTTP_USER_AGENT'], 'ip_address' => $ipAddress, 'passkey' => $passkey, 'port' => $port];
$peer = Peer::create($attributes);
}
// Check info_hash (must be 20 chars long)
if (!$info_hash) {
return BencodeHelper::bencodedResponseRaw("Invalid info hash.", 150);
}
// Check if peer is already assigned to torrent
$peer_torrent = PeerTorrent::getByPeerAndTorrent($peer, $torrent);
// Assign it, if not
if ($peer_torrent == null) {
$attributes = ['peer_id' => $peer->id, 'torrent_id' => $torrent->id, 'uploaded' => $uploaded, 'downloaded' => $downloaded, 'left' => $left];
// Event handling
if ($event === BitTorrent::EVENT_STARTED || $event == BitTorrent::EVENT_COMPLETED) {
$attributes['stopped'] = false;
} else {
$attributes['stopped'] = true;
}
PeerTorrent::create($attributes);
} else {
// Or update the existing one
$peer_torrent->uploaded = $uploaded;
$peer_torrent->downloaded = $downloaded;
$peer_torrent->left = $left;
$peer_torrent->save();
}
// Perform announce on the torrent
$torrent->announce();
// Build response
$resp = BencodeHelper::buildAnnounceResponse($torrent, $peer_torrent, $compact, $no_peer_id);
return BencodeHelper::bencodedResponseRaw($resp);
}
