/// <summary>
/// Starts the specified torrent.
/// </summary>
/// <param name="torrentInfo">The torrent information.</param>
public void Start(TorrentInfo torrentInfo)
{
torrentInfo.CannotBeNull();
TransferManager transfer;
Debug.WriteLine($"starting torrent {torrentInfo.InfoHash}");
if (this.IsRunning)
{
lock (((IDictionary)this.transfers).SyncRoot)
{
if (!this.transfers.ContainsKey(torrentInfo.InfoHash))
{
transfer = new TransferManager(this.ListeningPort, torrentInfo, this.throttlingManager, new PersistenceManager(this.BaseDirectory, torrentInfo.Length, torrentInfo.PieceLength, torrentInfo.PieceHashes, torrentInfo.Files));
transfer.TorrentHashing += this.Transfer_TorrentHashing;
transfer.TorrentLeeching += this.Transfer_TorrentLeeching;
transfer.TorrentSeeding += this.Transfer_TorrentSeeding;
transfer.TorrentStarted += this.Transfer_TorrentStarted;
transfer.TorrentStopped += this.Transfer_TorrentStopped;
transfer.Start();
this.transfers.Add(torrentInfo.InfoHash, transfer);
}
else
{
throw new TorrentClientException($"Torrent {torrentInfo.InfoHash} is already active.");
}
}
}
else
{
throw new TorrentClientException("Torrent client is not running.");
}
}
/// <summary>
/// Initializes a new instance of the <see cref="TransferManager" /> class.
/// </summary>
/// <param name="listeningPort">The port.</param>
/// <param name="torrentInfo">The torrent information.</param>
/// <param name="throttlingManager">The throttling manager.</param>
/// <param name="persistenceManager">The persistence manager.</param>
public TransferManager(int listeningPort, TorrentInfo torrentInfo, ThrottlingManager throttlingManager, PersistenceManager persistenceManager)
{
listeningPort.MustBeGreaterThanOrEqualTo(IPEndPoint.MinPort);
listeningPort.MustBeLessThanOrEqualTo(IPEndPoint.MaxPort);
torrentInfo.CannotBeNull();
throttlingManager.CannotBeNull();
persistenceManager.CannotBeNull();
Tracker tracker = null;
this.PeerId = "-AB1100-" + "0123456789ABCDEF".Random(24);
Debug.WriteLine($"creating torrent manager for torrent {torrentInfo.InfoHash}");
Debug.WriteLine($"local peer id {this.PeerId}");
this.TorrentInfo = torrentInfo;
this.throttlingManager = throttlingManager;
this.persistenceManager = persistenceManager;
// initialize trackers
foreach (var trackerUri in torrentInfo.AnnounceList)
{
if (trackerUri.Scheme == "http" ||
trackerUri.Scheme == "https")
{
tracker = new HttpTracker(trackerUri, this.PeerId, torrentInfo.InfoHash, listeningPort);
}
else if (trackerUri.Scheme == "udp")
{
tracker = new UdpTracker(trackerUri, this.PeerId, torrentInfo.InfoHash, listeningPort);
}
if (tracker != null)
{
tracker.TrackingEvent = TrackingEvent.Started;
tracker.Announcing += this.Tracker_Announcing;
tracker.Announced += this.Tracker_Announced;
tracker.TrackingFailed += this.Tracker_TrackingFailed;
tracker.BytesLeftToDownload = this.TorrentInfo.Length - this.Downloaded;
tracker.WantedPeerCount = 30; // we can handle 30 peers at a time
this.trackers.Add(trackerUri, tracker);
}
else
{
// unsupported tracker protocol
Debug.WriteLine($"unsupported tracker protocol {trackerUri.Scheme}");
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="TorrentLeechingEventArgs" /> class.
/// </summary>
/// <param name="torrentInfo">The torrent information.</param>
public TorrentLeechingEventArgs(TorrentInfo torrentInfo)
{
torrentInfo.CannotBeNull();
this.TorrentInfo = torrentInfo;
}
/// <summary>
/// Initializes a new instance of the <see cref="TorrentStartedEventArgs" /> class.
/// </summary>
/// <param name="torrentInfo">The torrent information.</param>
public TorrentStartedEventArgs(TorrentInfo torrentInfo)
{
torrentInfo.CannotBeNull();
this.TorrentInfo = torrentInfo;
}
