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https://github.com/lkddi/nexusphp.git
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858 lines
34 KiB
PHP
858 lines
34 KiB
PHP
<?php
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/**
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* Handle announce and scrape
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*
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* @link https://github.com/HDInnovations/UNIT3D-Community-Edition/blob/master/app/Http/Controllers/AnnounceController.php
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* @link https://github.com/Rhilip/RidPT/blob/master/application/Controllers/Tracker/AnnounceController.php
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*/
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namespace App\Repositories;
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use App\Exceptions\ClientNotAllowedException;
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use App\Models\Cheater;
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use App\Models\Peer;
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use App\Models\Setting;
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use App\Models\Snatch;
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use App\Models\Torrent;
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use App\Models\User;
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use Carbon\Carbon;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Http\Request;
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use App\Exceptions\TrackerException;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Redis;
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use Rhilip\Bencode\Bencode;
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class TrackerRepository extends BaseRepository
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{
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const MIN_ANNOUNCE_WAIT_SECOND = 300;
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const MAX_PEER_NUM_WANT = 50;
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const MUST_BE_CHEATER_SPEED = 1024 * 1024 * 1024; //1024 MB/s
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const MAY_BE_CHEATER_SPEED = 1024 * 1024 * 100; //100 MB/s
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// Port Blacklist
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protected const BLACK_PORTS = [
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22, // SSH Port
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53, // DNS queries
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80, 81, 8080, 8081, // Hyper Text Transfer Protocol (HTTP) - port used for web traffic
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411, 412, 413, // Direct Connect Hub (unofficial)
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443, // HTTPS / SSL - encrypted web traffic, also used for VPN tunnels over HTTPS.
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1214, // Kazaa - peer-to-peer file sharing, some known vulnerabilities, and at least one worm (Benjamin) targeting it.
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3389, // IANA registered for Microsoft WBT Server, used for Windows Remote Desktop and Remote Assistance connections
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4662, // eDonkey 2000 P2P file sharing service. http://www.edonkey2000.com/
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6346, 6347, // Gnutella (FrostWire, Limewire, Shareaza, etc.), BearShare file sharing app
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6699, // Port used by p2p software, such as WinMX, Napster.
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];
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private array $userUpdates = [];
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public function announce(Request $request): \Illuminate\Http\Response
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{
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do_log(nexus_json_encode($_SERVER));
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try {
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$withPeers = false;
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$queries = $this->checkAnnounceFields($request);
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do_log("[QUERIES] " . json_encode(Arr::only($queries, ['ip', 'user_agent', 'uploaded', 'downloaded', 'left', 'event'])), 'debug');
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$user = $this->checkUser($request);
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$clientAllow = $this->checkClient($request);
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$torrent = $this->checkTorrent($queries, $user);
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if ($this->isReAnnounce($queries) === false) {
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$withPeers = true;
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$peerSelf = $this->checkMinInterval($torrent, $queries, $user);
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if (!$peerSelf) {
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$this->checkPeer($torrent, $queries, $user);
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$this->checkPermission($torrent, $queries, $user);
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$peerSelf = new Peer([
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'torrent' => $torrent->id,
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'peer_id' => $queries['peer_id'],
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'userid' => $user->id,
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'passkey' => $user->passkey,
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]);
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} else {
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$this->checkCheater($torrent, $queries, $user, $peerSelf);
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}
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/**
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* Note: Must get before update peer!
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*/
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$dataTraffic = $this->getDataTraffic($torrent, $queries, $user, $peerSelf);
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$this->updatePeer($peerSelf, $queries);
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$this->updateSnatch($peerSelf, $queries, $dataTraffic);
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$this->updateTorrent($torrent, $queries);
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if ($dataTraffic['uploaded_increment_for_user'] > 0) {
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$this->userUpdates['uploaded'] = DB::raw('uploaded + ' . $dataTraffic['uploaded_increment_for_user']);
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}
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if ($dataTraffic['downloaded_increment_for_user'] > 0) {
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$this->userUpdates['downloaded'] = DB::raw('downloaded + ' . $dataTraffic['downloaded_increment_for_user']);
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}
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if ($user->clientselect != $clientAllow->id) {
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$this->userUpdates['clientselect'] = $clientAllow->id;
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}
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if ($user->showclienterror == 'yes') {
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$this->userUpdates['showclienterror'] = 'no';
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}
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}
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$repDict = $this->generateSuccessAnnounceResponse($torrent, $queries, $user, $withPeers);
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} catch (ClientNotAllowedException $exception) {
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do_log("[ClientNotAllowedException] " . $exception->getMessage());
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if (isset($user) && $user->showclienterror == 'no') {
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$this->userUpdates['showclienterror'] = 'yes';
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}
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$repDict = $this->generateFailedAnnounceResponse($exception->getMessage());
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} catch (TrackerException $exception) {
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$repDict = $this->generateFailedAnnounceResponse($exception->getMessage());
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} catch (\Exception $exception) {
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//other system exception
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do_log("[" . get_class($exception) . "] " . $exception->getMessage() . "\n" . $exception->getTraceAsString(), 'error');
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$repDict = $this->generateFailedAnnounceResponse("system error, report to sysop please, hint: " . REQUEST_ID);
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} finally {
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if (isset($user) && count($this->userUpdates)) {
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$user->update($this->userUpdates);
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do_log(last_query(), 'debug');
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}
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return $this->sendFinalAnnounceResponse($repDict);
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}
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}
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/**
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* @param Request $request
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* @throws ClientNotAllowedException
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* @throws TrackerException
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* @refs
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*/
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protected function checkClient(Request $request)
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{
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// Miss Header User-Agent is not allowed.
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if (! $request->header('User-Agent')) {
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throw new TrackerException('Invalid user-agent !');
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}
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// Block Other Browser, Crawler (May Cheater or Faker Client) by check Requests headers
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if ($request->header('accept-language') || $request->header('referer')
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|| $request->header('accept-charset')
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/**
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* This header check may block Non-bittorrent client `Aria2` to access tracker,
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* Because they always add this header which other clients don't have.
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*
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* @see https://blog.rhilip.info/archives/1010/ ( in Chinese )
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*/
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|| $request->header('want-digest')
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) {
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throw new TrackerException('Abnormal access blocked !');
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}
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$userAgent = $request->header('User-Agent');
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// Should also block User-Agent strings that are to long. (For Database reasons)
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if (\strlen((string) $userAgent) > 64) {
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throw new TrackerException('The User-Agent of this client is too long!');
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}
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// Block Browser by checking it's User-Agent
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if (\preg_match('/(Mozilla|Browser|Chrome|Safari|AppleWebKit|Opera|Links|Lynx|Bot|Unknown)/i', (string) $userAgent)) {
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throw new TrackerException('Browser, Crawler or Cheater is not Allowed.');
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}
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$agentAllowRep = new AgentAllowRepository();
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return $agentAllowRep->checkClient($request->peer_id, $userAgent, config('app.debug'));
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}
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protected function checkPasskey($passkey)
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{
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// If Passkey Lenght Is Wrong
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if (\strlen((string) $passkey) !== 32) {
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throw new TrackerException('Invalid passkey ! the length of passkey must be 32');
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}
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// If Passkey Format Is Wrong
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if (\strspn(\strtolower($passkey), 'abcdef0123456789') !== 32) { // MD5 char limit
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throw new TrackerException("Invalid passkey ! The format of passkey is not correct");
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}
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}
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protected function checkAuthkey($authkey)
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{
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$arr = explode('|', $authkey);
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if (count($arr) != 3) {
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throw new TrackerException('Invalid authkey');
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}
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$torrentId = $arr[0];
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$uid = $arr[1];
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$torrentRep = new TorrentRepository();
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try {
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$decrypted = $torrentRep->checkTrackerReportAuthKey($authkey);
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} catch (\Exception $exception) {
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throw new TrackerException($exception->getMessage());
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}
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if (empty($decrypted)) {
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throw new TrackerException('Invalid authkey');
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}
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return compact('torrentId', 'uid');
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}
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/**
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* @param Request $request
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* @return array
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* @throws TrackerException
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*/
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protected function checkAnnounceFields(Request $request): array
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{
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$queries = [];
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// Part.1 check Announce **Need** Fields
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foreach (['info_hash', 'peer_id', 'port', 'uploaded', 'downloaded', 'left'] as $item) {
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$itemData = $request->query->get($item);
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if (! \is_null($itemData)) {
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$queries[$item] = $itemData;
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} else {
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throw new TrackerException("key: $item is Missing !");
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}
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}
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foreach (['info_hash', 'peer_id'] as $item) {
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if (\strlen((string) $queries[$item]) !== 20) {
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throw new TrackerException("Invalid $item ! $item is not 20 bytes long");
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}
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}
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foreach (['uploaded', 'downloaded', 'left'] as $item) {
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$itemData = $queries[$item];
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if (! \is_numeric($itemData) || $itemData < 0) {
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throw new TrackerException("Invalid $item ! $item Must be a number greater than or equal to 0");
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}
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}
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// Part.2 check Announce **Option** Fields
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foreach (['event' => '', 'no_peer_id' => 1, 'compact' => 0, 'numwant' => 50, 'corrupt' => 0, 'key' => ''] as $item => $value) {
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$queries[$item] = $request->query->get($item, $value);
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if ($queries[$item] && $item == 'event') {
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$queries[$item] = strtolower($queries[$item]);
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}
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}
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foreach (['numwant', 'corrupt', 'no_peer_id', 'compact'] as $item) {
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if (! \is_numeric($queries[$item]) || $queries[$item] < 0) {
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throw new TrackerException("Invalid $item ! $item Must be a number greater than or equal to 0");
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}
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}
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if (! \in_array(\strtolower($queries['event']), ['started', 'completed', 'stopped', 'paused', ''])) {
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throw new TrackerException("Unsupported Event type {$queries['event']} .");
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}
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// Part.3 check Port is Valid and Allowed
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/**
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* Normally , the port must in 1 - 65535 , that is ( $port > 0 && $port < 0xffff )
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* However, in some case , When `&event=stopped` the port may set to 0.
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*/
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if ($queries['port'] === 0 && \strtolower($queries['event']) !== 'stopped') {
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throw new TrackerException("Illegal port 0 under Event type {$queries['event']} .");
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}
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if (! \is_numeric($queries['port']) || $queries['port'] < 0 || $queries['port'] > 0xFFFF || \in_array($queries['port'], self::BLACK_PORTS,
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true)) {
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throw new TrackerException("Illegal port {$queries['port']} . Port should between 6881-64999");
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}
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// Part.4 Get User Ip Address
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$queries['ip'] = $request->getClientIp();
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// Part.5 Get Users Agent
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$queries['user_agent'] = $request->headers->get('user-agent');
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// Part.6 info_hash, binary
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$queries['info_hash'] = $queries['info_hash'];
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// Part.7
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$queries['peer_id'] = $queries['peer_id'];
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return $queries;
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}
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protected function checkUser(Request $request)
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{
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if ($authkey = $request->query->get('authkey')) {
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$checkResult = $this->checkAuthkey($authkey);
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$field = 'id';
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$value = $checkResult['uid'];
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} elseif ($passkey = $request->query->get('passkey')) {
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$this->checkPasskey($passkey);
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$field = 'passkey';
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$value = $passkey;
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} else {
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throw new TrackerException("Require authkey or passkey.");
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}
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/**
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* @var $user User
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*/
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$user = User::query()->where($field, $value)->first();
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if (!$user) {
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throw new TrackerException("Invalid $field: $value.");
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}
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$user->checkIsNormal();
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if ($user->parked == 'yes') {
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throw new TrackerException("Your account is parked! (Read the FAQ)");
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}
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if ($user->downloadpos == 'no') {
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throw new TrackerException("Your downloading privilege have been disabled! (Read the rules)");
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}
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return $user;
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}
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protected function checkTorrent($queries, User $user)
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{
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// Check Info Hash Against Torrents Table
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$torrent = $this->getTorrentByInfoHash($queries['info_hash']);
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// If Torrent Doesnt Exists Return Error to Client
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if ($torrent === null) {
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throw new TrackerException('Torrent not registered with this tracker.');
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}
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if ($torrent->banned == 'yes' && $user->class < Setting::get('authority.seebanned')) {
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throw new TrackerException("torrent banned");
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}
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return $torrent;
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}
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protected function checkPeer(Torrent $torrent, array $queries, User $user): void
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{
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if ($queries['event'] === 'completed') {
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throw new TrackerException("Torrent being announced as complete but no record found.");
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}
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$counts = Peer::query()
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->where('torrent', '=', $torrent->id)
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->where('userid', $user->id)
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->count();
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if ($queries['left'] == 0 && $counts >= 3) {
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throw new TrackerException("You cannot seed the same torrent from more than 3 locations.");
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}
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if ($queries['left'] > 0 && $counts >= 1) {
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throw new TrackerException("You already are downloading the same torrent. You may only leech from one location at a time.");
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}
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}
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protected function checkPermission(Torrent $torrent, $queries, User $user)
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{
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if ($user->class >= User::CLASS_VIP) {
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return;
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}
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$gigs = $user->downloaded / (1024*1024*1024);
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if ($gigs < 10) {
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return;
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}
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$ratio = ($user->downloaded > 0) ? ($user->uploaded / $user->downloaded) : 1;
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$settingsMain = Setting::get('main');
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if ($settingsMain['waitsystem'] == 'yes') {
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$elapsed = Carbon::now()->diffInHours($torrent->added);
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if ($ratio < 0.4) $wait = 24;
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elseif ($ratio < 0.5) $wait = 12;
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elseif ($ratio < 0.6) $wait = 6;
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elseif ($ratio < 0.8) $wait = 3;
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else $wait = 0;
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if ($elapsed < $wait) {
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$msg = "Your ratio is too low! You need to wait " . mkprettytime($wait * 3600 - $elapsed) . " to start";
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throw new TrackerException($msg);
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}
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}
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if ($settingsMain['maxdlsystem'] == 'yes') {
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if ($ratio < 0.5) $max = 1;
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elseif ($ratio < 0.65) $max = 2;
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elseif ($ratio < 0.8) $max = 3;
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elseif ($ratio < 0.95) $max = 4;
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else $max = 0;
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if ($max > 0) {
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$counts = Peer::query()->where('userid', $user->id)->where('seeder', 'no')->count();
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if ($counts > $max) {
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$msg = "Your slot limit is reached! You may at most download $max torrents at the same time";
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throw new TrackerException($msg);
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}
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}
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}
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}
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/**
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* @param Torrent $torrent
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* @param $queries
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* @param User $user
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* @return \Illuminate\Database\Eloquent\Builder|Model|object|null
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* @throws TrackerException
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*/
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protected function checkMinInterval(Torrent $torrent, $queries, User $user)
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{
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$peer = Peer::query()
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->where('torrent', $torrent->id)
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->where('peer_id', $queries['peer_id'])
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->first();
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if (
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$peer
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&& $queries['event'] == ''
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&& $peer->isValidDate('prev_action')
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&& Carbon::now()->diffInSeconds($peer->prev_action) < self::MIN_ANNOUNCE_WAIT_SECOND
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) {
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throw new TrackerException('There is a minimum announce time of ' . self::MIN_ANNOUNCE_WAIT_SECOND . ' seconds');
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}
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return $peer;
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}
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protected function checkCheater(Torrent $torrent, $queries, User $user, Peer $peer)
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{
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$settingSecurity = Setting::get('security');
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$level = $settingSecurity['cheaterdet'];
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if ($level == 0) {
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//don't do check
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return;
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}
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if ($user->class >= $settingSecurity['nodetect']) {
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//forever trust
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return;
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}
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if (!$peer->isValidDate('last_action')) {
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//no last action
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return;
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}
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$duration = Carbon::now()->diffInSeconds($peer->last_action);
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$upSpeed = $queries['uploaded'] > 0 ? ($queries['uploaded'] / $duration) : 0;
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$oneGB = 1024 * 1024 * 1024;
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$tenMB = 1024 * 1024 * 10;
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$nowStr = Carbon::now()->toDateTimeString();
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$cheaterBaseData = [
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'added' => $nowStr,
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'userid' => $user->id,
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'torrentid' => $torrent->id,
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'uploaded' => $queries['uploaded'],
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'downloaded' => $queries['downloaded'],
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'anctime' => $duration,
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'seeders' => $torrent->seeders,
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'leechers' => $torrent->leechers,
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];
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if ($queries['uploaded'] > $oneGB && ($upSpeed > self::MUST_BE_CHEATER_SPEED / $level)) {
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//Uploaded more than 1 GB with uploading rate higher than 1024 MByte/S (For Consertive level). This is no doubt cheating.
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$comment = "User account was automatically disabled by system";
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$data = array_merge($cheaterBaseData, ['comment' => $comment]);
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Cheater::query()->insert($data);
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$modComment = "We believe you're trying to cheat. And your account is disabled.";
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$user->updateWithModComment(['enabled' => User::ENABLED_NO], $modComment);
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throw new TrackerException($modComment);
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}
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if ($queries['uploaded'] > $oneGB && ($upSpeed > self::MAY_BE_CHEATER_SPEED / $level)) {
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//Uploaded more than 1 GB with uploading rate higher than 100 MByte/S (For Consertive level). This is likely cheating.
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$comment = "Abnormally high uploading rate";
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$data = array_merge($cheaterBaseData, ['comment' => $comment]);
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$this->createOrUpdateCheater($torrent, $user, $data);
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}
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if ($level > 1) {
|
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if ($queries['uploaded'] > $oneGB && ($upSpeed > 1024 * 1024) && ($queries['leechers'] < 2 * $level)) {
|
|
//Uploaded more than 1 GB with uploading rate higher than 1 MByte/S when there is less than 8 leechers (For Consertive level). This is likely cheating.
|
|
$comment = "User is uploading fast when there is few leechers";
|
|
$data = array_merge($cheaterBaseData, ['comment' => $comment]);
|
|
$this->createOrUpdateCheater($torrent, $user, $data);
|
|
}
|
|
|
|
if ($queries['uploaded'] > $tenMB && ($upSpeed > 1024 * 100) && ($queries['leechers'] == 0)) {
|
|
///Uploaded more than 10 MB with uploading speed faster than 100 KByte/S when there is no leecher. This is likely cheating.
|
|
$comment = "User is uploading when there is no leecher";
|
|
$data = array_merge($cheaterBaseData, ['comment' => $comment]);
|
|
$this->createOrUpdateCheater($torrent, $user, $data);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
private function createOrUpdateCheater(Torrent $torrent, User $user, array $createData)
|
|
{
|
|
$existsCheater = Cheater::query()
|
|
->where('torrentid', $torrent->id)
|
|
->where('userid', $user->id)
|
|
->where('added', '>', Carbon::now()->subHours(24))
|
|
->first();
|
|
if ($existsCheater) {
|
|
$existsCheater->increment('hit');
|
|
} else {
|
|
$createData['hit'] = 1;
|
|
Cheater::query()->insert($createData);
|
|
}
|
|
}
|
|
|
|
protected function isReAnnounce(array $queries): bool
|
|
{
|
|
unset($queries['key']);
|
|
$lockKey = md5(http_build_query($queries));
|
|
$redis = Redis::connection()->client();
|
|
if (!$redis->set($lockKey, NEXUS_START, ['nx', 'ex' => self::MIN_ANNOUNCE_WAIT_SECOND])) {
|
|
do_log('[RE_ANNOUNCE]');
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private function generateSuccessAnnounceResponse($torrent, $queries, $user, $withPeers = true): array
|
|
{
|
|
// Build Response For Bittorrent Client
|
|
$minInterval = self::MIN_ANNOUNCE_WAIT_SECOND;
|
|
$interval = max($this->getRealAnnounceInterval($torrent), $minInterval);
|
|
$repDict = [
|
|
'interval' => $interval + random_int(10, 100),
|
|
'min interval' => $minInterval + random_int(1, 10),
|
|
'complete' => (int) $torrent->seeders,
|
|
'incomplete' => (int) $torrent->leechers,
|
|
'peers' => [],
|
|
'peers6' => [],
|
|
];
|
|
do_log("[REP_DICT_BASE] " . json_encode($repDict));
|
|
|
|
/**
|
|
* For non `stopped` event only
|
|
* We query peers from database and send peer list, otherwise just quick return.
|
|
*/
|
|
if (\strtolower($queries['event']) !== 'stopped' && $withPeers) {
|
|
$limit = ($queries['numwant'] <= self::MAX_PEER_NUM_WANT ? $queries['numwant'] : self::MAX_PEER_NUM_WANT);
|
|
$baseQuery = Peer::query()
|
|
->select(['peer_id', 'ip', 'port'])
|
|
->where('torrent', $torrent->id)
|
|
->where('userid', '!=', $user->id)
|
|
->limit($limit)
|
|
->orderByRaw('rand()')
|
|
;
|
|
|
|
// Get Torrents Peers
|
|
if ($queries['left'] == 0) {
|
|
// Only include leechers in a seeder's peerlist
|
|
$peers = $baseQuery->where('seeder', 'no')->get()->toArray();
|
|
} else {
|
|
$peers = $baseQuery->get()->toArray();
|
|
}
|
|
do_log("[REP_DICT_PEER_QUERY] " . last_query());
|
|
$repDict['peers'] = $this->givePeers($peers, $queries['compact'], $queries['no_peer_id']);
|
|
$repDict['peers6'] = $this->givePeers($peers, $queries['compact'], $queries['no_peer_id'], FILTER_FLAG_IPV6);
|
|
}
|
|
|
|
return $repDict;
|
|
}
|
|
|
|
private function getRealAnnounceInterval(Torrent $torrent)
|
|
{
|
|
$settingMain = Setting::get('main');
|
|
$announce_wait = self::MIN_ANNOUNCE_WAIT_SECOND;
|
|
$real_annnounce_interval = $settingMain['announce_interval'];
|
|
$torrentSurvivalDays = Carbon::now()->diffInDays($torrent->added);
|
|
if (
|
|
$settingMain['anninterthreeage']
|
|
&& ($settingMain['anninterthree'] > $announce_wait)
|
|
&& ($torrentSurvivalDays >= $settingMain['anninterthreeage'])
|
|
) {
|
|
$real_annnounce_interval = $settingMain['anninterthree'];
|
|
} elseif (
|
|
$settingMain['annintertwoage']
|
|
&& ($settingMain['annintertwo'] > $announce_wait)
|
|
&& ($torrentSurvivalDays >= $settingMain['annintertwoage'])
|
|
) {
|
|
$real_annnounce_interval = $settingMain['annintertwo'];
|
|
}
|
|
do_log(sprintf(
|
|
'torrent: %s, survival days: %s, real_announce_interval: %s',
|
|
$torrent->id, $torrentSurvivalDays, $real_annnounce_interval
|
|
), 'debug');
|
|
|
|
return $real_annnounce_interval;
|
|
}
|
|
|
|
private function getDataTraffic(Torrent $torrent, $queries, User $user, Peer $peer): array
|
|
{
|
|
$log = sprintf(
|
|
"torrent: %s, user: %s, peer: %s, queriesUploaded: %s, queriesDownloaded: %s",
|
|
$torrent->id, $user->id, $peer->id, $queries['uploaded'], $queries['downloaded']
|
|
);
|
|
if ($peer->exists) {
|
|
$realUploaded = max($queries['uploaded'] - $peer->uploaded, 0);
|
|
$realDownloaded = max($queries['downloaded'] - $peer->downloaded, 0);
|
|
$log .= ", [PEER_EXISTS], realUploaded: $realUploaded, realDownloaded: $realDownloaded";
|
|
} else {
|
|
$realUploaded = $queries['uploaded'];
|
|
$realDownloaded = $queries['downloaded'];
|
|
$log .= ", [PEER_NOT_EXISTS],, realUploaded: $realUploaded, realDownloaded: $realDownloaded";
|
|
}
|
|
$spStateReal = $torrent->spStateReal;
|
|
$uploaderRatio = Setting::get('torrent.uploaderdouble');
|
|
$log .= ", spStateReal: $spStateReal, uploaderRatio: $uploaderRatio";
|
|
if ($torrent->owner == $user->id) {
|
|
//uploader, use the bigger one
|
|
$upRatio = max($uploaderRatio, Torrent::$promotionTypes[$spStateReal]['up_multiplier']);
|
|
$log .= ", [IS_UPLOADER], upRatio: $upRatio";
|
|
} else {
|
|
$upRatio = Torrent::$promotionTypes[$spStateReal]['up_multiplier'];
|
|
$log .= ", [IS_NOT_UPLOADER], upRatio: $upRatio";
|
|
}
|
|
$downRatio = Torrent::$promotionTypes[$spStateReal]['down_multiplier'];
|
|
$log .= ", downRatio: $downRatio";
|
|
$result = [
|
|
'uploaded_increment' => $realUploaded,
|
|
'uploaded_increment_for_user' => $realUploaded * $upRatio,
|
|
'downloaded_increment' => $realDownloaded,
|
|
'downloaded_increment_for_user' => $realDownloaded * $downRatio,
|
|
];
|
|
do_log("$log, result: " . json_encode($result));
|
|
return $result;
|
|
}
|
|
|
|
private function givePeers($peers, $compact, $noPeerId, int $filterFlag = FILTER_FLAG_IPV4): string|array
|
|
{
|
|
if ($compact) {
|
|
$pcomp = '';
|
|
foreach ($peers as $p) {
|
|
if (isset($p['ip'], $p['port']) && \filter_var($p['ip'], FILTER_VALIDATE_IP, $filterFlag)) {
|
|
$pcomp .= \inet_pton($p['ip']);
|
|
$pcomp .= \pack('n', (int) $p['port']);
|
|
}
|
|
}
|
|
|
|
return $pcomp;
|
|
}
|
|
|
|
if ($noPeerId) {
|
|
foreach ($peers as &$p) {
|
|
unset($p['peer_id']);
|
|
}
|
|
|
|
return $peers;
|
|
}
|
|
|
|
return $peers;
|
|
}
|
|
|
|
protected function generateFailedAnnounceResponse($reason): array
|
|
{
|
|
return [
|
|
'failure reason' => $reason,
|
|
'min interval' => self::MIN_ANNOUNCE_WAIT_SECOND,
|
|
//'retry in' => self::MIN_ANNOUNCE_WAIT_SECOND
|
|
];
|
|
}
|
|
|
|
protected function sendFinalAnnounceResponse($repDict): \Illuminate\Http\Response
|
|
{
|
|
return \response(Bencode::encode($repDict))
|
|
->withHeaders(['Content-Type' => 'text/plain; charset=utf-8'])
|
|
->withHeaders(['Connection' => 'close'])
|
|
->withHeaders(['Pragma' => 'no-cache']);
|
|
}
|
|
|
|
|
|
private function updateTorrent(Torrent $torrent, $queries)
|
|
{
|
|
$torrent->seeders = Peer::query()
|
|
->where('torrent', $torrent->id)
|
|
->where('to_go', '=',0)
|
|
->count();
|
|
|
|
$torrent->leechers = Peer::query()
|
|
->where('torrent', $torrent->id)
|
|
->where('to_go', '>', 0)
|
|
->count();
|
|
|
|
$torrent->visible = Torrent::VISIBLE_YES;
|
|
$torrent->last_action = Carbon::now();
|
|
|
|
if ($queries['event'] == 'completed') {
|
|
$torrent->times_completed = DB::raw("times_completed + 1");
|
|
}
|
|
|
|
$torrent->save();
|
|
do_log(last_query(), 'debug');
|
|
}
|
|
|
|
private function updatePeer(Peer $peer, $queries)
|
|
{
|
|
if ($queries['event'] == 'stopped') {
|
|
$peer->delete();
|
|
do_log(last_query(), 'debug');
|
|
return;
|
|
}
|
|
|
|
$nowStr = Carbon::now()->toDateTimeString();
|
|
//torrent, userid, peer_id, ip, port, connectable, uploaded, downloaded, to_go, started, last_action, seeder, agent, downloadoffset, uploadoffset, passkey
|
|
$peer->ip = $queries['ip'];
|
|
$peer->port = $queries['port'];
|
|
$peer->agent = $queries['user_agent'];
|
|
$peer->updateConnectableStateIfNeeded();
|
|
|
|
$peer->to_go = $queries['left'];
|
|
$peer->seeder = $queries['left'] == 0 ? 'yes' : 'no';
|
|
$peer->last_action = $nowStr;
|
|
$peer->uploaded = $queries['uploaded'];
|
|
$peer->downloaded = $queries['downloaded'];
|
|
|
|
if ($peer->exists) {
|
|
$peer->prev_action = $peer->last_action;
|
|
}
|
|
|
|
if ($queries['event'] == 'started') {
|
|
$peer->started = $nowStr;
|
|
$peer->uploadoffset = $queries['uploaded'];
|
|
$peer->downloadoffset = $queries['downloaded'];
|
|
} elseif ($queries['event'] == 'completed') {
|
|
$peer->finishedat = time();
|
|
}
|
|
|
|
$peer->save();
|
|
do_log(last_query(), 'debug');
|
|
}
|
|
|
|
/**
|
|
* Update snatch, uploaded & downloaded, use the increment value to do increment
|
|
*
|
|
* @param Peer $peer
|
|
* @param $queries
|
|
* @param $dataTraffic
|
|
*/
|
|
private function updateSnatch(Peer $peer, $queries, $dataTraffic)
|
|
{
|
|
$nowStr = Carbon::now()->toDateTimeString();
|
|
|
|
$snatch = Snatch::query()
|
|
->where('torrentid', $peer->torrent)
|
|
->where('userid', $peer->userid)
|
|
->first();
|
|
|
|
//torrentid, userid, ip, port, uploaded, downloaded, to_go, ,seedtime, leechtime, last_action, startdat, completedat, finished
|
|
if (!$snatch) {
|
|
$snatch = new Snatch();
|
|
//initial
|
|
$snatch->torrentid = $peer->torrent;
|
|
$snatch->userid = $peer->userid;
|
|
$snatch->uploaded = $dataTraffic['uploaded_increment'];
|
|
$snatch->downloaded = $dataTraffic['downloaded_increment'];
|
|
$snatch->startdat = $nowStr;
|
|
} else {
|
|
//increase, use the increment value
|
|
$snatch->uploaded = DB::raw("uploaded + " . $dataTraffic['uploaded_increment']);
|
|
$snatch->downloaded = DB::raw("downloaded + " . $dataTraffic['downloaded_increment']);
|
|
$timeIncrease = Carbon::now()->diffInSeconds($peer->last_action);
|
|
if ($queries['left'] == 0) {
|
|
//seeder
|
|
$timeField = 'seedtime';
|
|
} else {
|
|
$timeField = 'leechtime';
|
|
}
|
|
$snatch->{$timeField} = DB::raw("$timeField + $timeIncrease");
|
|
}
|
|
|
|
//always update
|
|
$snatch->ip = $queries['ip'];
|
|
$snatch->port = $queries['port'];
|
|
$snatch->to_go = $queries['left'];
|
|
$snatch->last_action = $nowStr;
|
|
if ($queries['event'] == 'completed') {
|
|
$snatch->completedat = $nowStr;
|
|
$snatch->finished = 'yes';
|
|
}
|
|
|
|
$snatch->save();
|
|
do_log(last_query(), 'debug');
|
|
}
|
|
|
|
public function scrape(Request $request): \Illuminate\Http\Response
|
|
{
|
|
do_log(nexus_json_encode($_SERVER));
|
|
try {
|
|
$infoHashArr = $this->checkScrapeFields($request);
|
|
$user = $this->checkUser($request);
|
|
$clientAllow = $this->checkClient($request);
|
|
|
|
if ($user->clientselect != $clientAllow->id) {
|
|
$this->userUpdates['clientselect'] = $clientAllow->id;
|
|
}
|
|
$repDict = $this->generateScrapeResponse($infoHashArr);
|
|
} catch (ClientNotAllowedException $exception) {
|
|
do_log("[ClientNotAllowedException] " . $exception->getMessage());
|
|
if (isset($user) && $user->showclienterror == 'no') {
|
|
$this->userUpdates['showclienterror'] = 'yes';
|
|
}
|
|
$repDict = $this->generateFailedAnnounceResponse($exception->getMessage());
|
|
} catch (TrackerException $exception) {
|
|
$repDict = $this->generateFailedAnnounceResponse($exception->getMessage());
|
|
} catch (\Exception $exception) {
|
|
//other system exception
|
|
do_log("[" . get_class($exception) . "] " . $exception->getMessage() . "\n" . $exception->getTraceAsString(), 'error');
|
|
$repDict = $this->generateFailedAnnounceResponse("system error, report to sysop please, hint: " . REQUEST_ID);
|
|
} finally {
|
|
if (isset($user) && count($this->userUpdates)) {
|
|
$user->update($this->userUpdates);
|
|
do_log(last_query(), 'debug');
|
|
}
|
|
return $this->sendFinalAnnounceResponse($repDict);
|
|
}
|
|
}
|
|
|
|
private function checkScrapeFields(Request $request): array
|
|
{
|
|
preg_match_all('/info_hash=([^&]*)/i', urldecode($request->getQueryString()), $info_hash_match);
|
|
|
|
$info_hash_array = $info_hash_match[1];
|
|
if (count($info_hash_array) < 1) {
|
|
throw new TrackerException("key: info_hash is Missing !");
|
|
} else {
|
|
foreach ($info_hash_array as $item) {
|
|
if (strlen($item) != 20) {
|
|
throw new TrackerException("Invalid info_hash ! :attribute is not 20 bytes long");
|
|
}
|
|
}
|
|
}
|
|
return $info_hash_array;
|
|
}
|
|
|
|
/**
|
|
* @param $info_hash_array
|
|
* @return array[]
|
|
* @see http://www.bittorrent.org/beps/bep_0048.html
|
|
*/
|
|
private function generateScrapeResponse($info_hash_array)
|
|
{
|
|
$torrent_details = [];
|
|
foreach ($info_hash_array as $item) {
|
|
$torrent = $this->getTorrentByInfoHash($item);
|
|
if ($torrent) {
|
|
$torrent_details[$item] = [
|
|
'complete' => (int)$torrent->seeders,
|
|
'downloaded' => (int)$torrent->times_completed,
|
|
'incomplete' => (int)$torrent->leechers,
|
|
];
|
|
}
|
|
}
|
|
|
|
return ['files' => $torrent_details];
|
|
}
|
|
|
|
private function getTorrentByInfoHash($infoHash)
|
|
{
|
|
return Cache::remember(bin2hex($infoHash), 60, function () use ($infoHash) {
|
|
$fieldRaw = 'id, owner, sp_state, seeders, leechers, added, banned, hr, visible, last_action, times_completed';
|
|
$torrent = Torrent::query()->where('info_hash', $infoHash)->selectRaw($fieldRaw)->first();
|
|
do_log("cache miss, from database: " . last_query() . ", and get: " . $torrent->id);
|
|
return $torrent;
|
|
});
|
|
}
|
|
|
|
}
|