/**
* Кодує дані в torrent файл
* @param Torrent $torrent
* @return string
*/
public static function encode(Torrent $torrent)
{
$torrentArray = array();
$data = $torrent->getData();
foreach ($data as $itemKey => $item) {
switch ($itemKey) {
case 'announce-list':
foreach ($item as $announce) {
if ($announce) {
$torrentArray[$itemKey][][0] = $announce;
}
}
break;
case 'url-list':
foreach ($item as $url) {
if ($url) {
$torrentArray[$itemKey][] = $url;
}
}
break;
case 'info':
if (empty($item)) {
continue;
}
$torrentArray[$itemKey] = array();
foreach ($item as $infoKeyItem => $itemInfo) {
switch ($infoKeyItem) {
case 'files':
$torrentArray[$itemKey][$infoKeyItem] = array();
foreach ($itemInfo as $fileItem) {
$newFileItem = array();
foreach ($fileItem as $keyAttrFileItem => $attrFileItem) {
switch ($keyAttrFileItem) {
case 'path':
case 'length':
default:
$newFileItem[$keyAttrFileItem] = $attrFileItem;
}
}
$torrentArray[$itemKey][$infoKeyItem][] = $newFileItem;
}
break;
default:
$torrentArray[$itemKey][$infoKeyItem] = $itemInfo;
}
}
break;
default:
if ($item) {
$torrentArray[$itemKey] = $item;
}
}
}
$data = \Rych\Bencode\Bencode::encode($torrentArray);
return $data;
}
public function announce($tid, $uid)
{
// torrent klients (utorrent) atver šādu adresi
// http://xxx/announce/2/2?info_hash=xxxx&peer_id=xxxx&numwant=50&event=started&port=123&left=0
// parametru skaidrojums
// https://wiki.theory.org/BitTorrentSpecification (Tracker Request Parameters)
$torrent = Torrent::findOrFail($tid);
$user = User::findOrFail($uid);
Eloquent::unguard();
// atlasa ierakstu vai izveido jaunu
$data = TorrentUser::firstOrCreate(array('torrent_id' => $torrent->id, 'user_id' => $user->id, 'peer_id' => @$_GET['peer_id']));
$data->ip = $_SERVER['REMOTE_ADDR'];
// utorrent ip adrese
$data->port = (int) @$_GET['port'];
// utorrent ports
$data->peer_id = @$_GET['peer_id'];
// utorrent kaut kāds id
$data->seeding = @$_GET['left'] == 0;
// cik baiti atlikuši lejuplādēt (0 = pabeigts)
if (@$_GET['event'] == 'stopped') {
$data->delete();
// nospieda stop pogu, dzēšam
} else {
$data->save();
}
$numwant = isset($_GET['numwant']) ? (int) $_GET['numwant'] : 50;
// cik datus par citiem lietotājiem grib
$complete = TorrentUser::where('torrent_id', $torrent->id)->where('seeding', true)->count();
// saskaita šim torrentam seederus
$incomplete = TorrentUser::where('torrent_id', $torrent->id)->where('seeding', false)->count();
// saskaita šim torrentam leecherus
$peers = TorrentUser::where('torrent_id', $torrent->id)->select('peer_id', 'ip', 'port')->take($numwant)->get()->toArray();
// https://wiki.theory.org/BitTorrentSpecification (Tracker Response)
$response = array('interval' => 60, 'tracker id' => 'tracker', 'complete' => $complete, 'incomplete' => $incomplete, 'peers' => $peers);
$response = Response::make(Bencode::encode($response), 200);
$response->header('Content-Type', 'text/plain');
return $response;
}
public function getDownload($id)
{
$torrent = Torrent::find($id);
if (!$torrent) {
App::abort(404);
}
$torrent->downloads += 1;
$torrent->save();
$decoded = Bencode::decode($torrent->file);
$decoded['announce'] = Config::get('app.url') . '/announce/' . $torrent->id . '/' . Auth::user()->id;
unset($decoded['announce-list']);
$torrent->file = Bencode::encode($decoded);
$response = Response::make($torrent->file, 200);
$response->header('Content-Type', 'application/x-bittorrent');
// http://x-bittorrent.mime-application.com/
$response->header('Content-Disposition', 'attachment; filename=' . $torrent->name . '.torrent');
// http://stackoverflow.com/questions/93551/how-to-encode-the-filename-parameter-of-content-disposition-header-in-http
return $response;
}
