private static async Task StartEngine(IEnumerable <Uri> magnetUris)
{
// Create the settings which the engine will use
// downloadsPath - this is the path where we will save all the files to
// port - this is the port we listen for connections on
EngineSettings engineSettings = new EngineSettings
{
SavePath = downloadsPath,
ListenPort = port
};
//engineSettings.GlobalMaxUploadSpeed = 30 * 1024;
//engineSettings.GlobalMaxDownloadSpeed = 100 * 1024;
//engineSettings.MaxReadRate = 1 * 1024 * 1024;
// Create the default settings which a torrent will have.
TorrentSettings torrentDefaults = new TorrentSettings();
// Create an instance of the engine.
engine = new ClientEngine(engineSettings);
byte[] nodes = Array.Empty <byte>();
try
{
nodes = File.ReadAllBytes(dhtNodeFile);
}
catch
{
Console.WriteLine("No existing dht nodes could be loaded");
}
DhtEngine dht = new DhtEngine(new IPEndPoint(IPAddress.Any, port));
await engine.RegisterDhtAsync(dht);
// This starts the Dht engine but does not wait for the full initialization to
// complete. This is because it can take up to 2 minutes to bootstrap, depending
// on how many nodes time out when they are contacted.
await engine.DhtEngine.StartAsync(nodes);
// If the SavePath does not exist, we want to create it.
if (!Directory.Exists(engine.Settings.SavePath))
{
Directory.CreateDirectory(engine.Settings.SavePath);
}
// If the torrentsPath does not exist, we want to create it
if (!Directory.Exists(torrentsPath))
{
Directory.CreateDirectory(torrentsPath);
}
BEncodedDictionary fastResume;
try
{
fastResume = BEncodedValue.Decode <BEncodedDictionary>(File.ReadAllBytes(fastResumeFile));
}
catch
{
fastResume = new BEncodedDictionary();
}
// For each magnet uri, load it into the engine.
foreach (Uri magnetUri in magnetUris)
{
MagnetLink magnet = MagnetLink.FromUri(magnetUri);
// When any preprocessing has been completed, you create a TorrentManager
// which you then register with the engine.
TorrentManager manager = new TorrentManager(magnet, downloadsPath, torrentDefaults, torrentsPath);
if (fastResume.ContainsKey(magnet.InfoHash.ToHex()))
{
manager.LoadFastResume(new FastResume((BEncodedDictionary)fastResume[magnet.InfoHash.ToHex()]));
}
await engine.Register(manager);
// Store the torrent manager in our list so we can access it later
torrents.Add(manager);
manager.PeersFound += manager_PeersFound;
}
// If we loaded no torrents, just exit.
if (torrents.Count == 0)
{
Console.WriteLine("No torrents found");
engine.Dispose();
return;
}
// For each torrent manager we loaded and stored in our list, hook into the events
// in the torrent manager and start the engine.
foreach (TorrentManager manager in torrents)
{
manager.PeerConnected += (o, e) => {
lock (listener)
listener.WriteLine($"Connection succeeded: {e.Peer.Uri}");
};
manager.ConnectionAttemptFailed += (o, e) => {
lock (listener)
listener.WriteLine(
$"Connection failed: {e.Peer.ConnectionUri} - {e.Reason} - {e.Peer.AllowedEncryption}");
};
// Every time a piece is hashed, this is fired.
manager.PieceHashed += (object o, PieceHashedEventArgs e) =>
{
lock (listener)
listener.WriteLine($"Piece Hashed: {e.PieceIndex} - {(e.HashPassed ? "Pass" : "Fail")}");
};
// Every time the state changes (Stopped -> Seeding -> Downloading -> Hashing) this is fired
manager.TorrentStateChanged += (object o, TorrentStateChangedEventArgs e) =>
{
lock (listener)
listener.WriteLine($"OldState: {e.OldState} NewState: {e.NewState}");
};
// Every time the tracker's state changes, this is fired
manager.TrackerManager.AnnounceComplete += (sender, e) => {
listener.WriteLine($"{e.Successful}: {e.Tracker}");
};
// Start the torrentmanager. The file will then hash (if required) and begin downloading/seeding
await manager.StartAsync();
}
// While the torrents are still running, print out some stats to the screen.
// Details for all the loaded torrent managers are shown.
int i = 0;
bool running = true;
StringBuilder sb = new StringBuilder(1024);
while (running)
{
if ((i++) % 10 == 0)
{
sb.Remove(0, sb.Length);
running = torrents.Exists(m => m.State != TorrentState.Stopped);
AppendFormat(sb, "Total Download Rate: {0:0.00}kB/sec", engine.TotalDownloadSpeed / 1024.0);
AppendFormat(sb, "Total Upload Rate: {0:0.00}kB/sec", engine.TotalUploadSpeed / 1024.0);
AppendFormat(sb, "Disk Read Rate: {0:0.00} kB/s", engine.DiskManager.ReadRate / 1024.0);
AppendFormat(sb, "Disk Write Rate: {0:0.00} kB/s", engine.DiskManager.WriteRate / 1024.0);
AppendFormat(sb, "Total Read: {0:0.00} kB", engine.DiskManager.TotalRead / 1024.0);
AppendFormat(sb, "Total Written: {0:0.00} kB", engine.DiskManager.TotalWritten / 1024.0);
AppendFormat(sb, "Open Connections: {0}", engine.ConnectionManager.OpenConnections);
foreach (TorrentManager manager in torrents)
{
AppendSeparator(sb);
AppendFormat(sb, "State: {0}", manager.State);
AppendFormat(sb, "Name: {0}", manager.Torrent == null ? "MetaDataMode" : manager.Torrent.Name);
AppendFormat(sb, "Progress: {0:0.00}", manager.Progress);
AppendFormat(sb, "Download Speed: {0:0.00} kB/s", manager.Monitor.DownloadSpeed / 1024.0);
AppendFormat(sb, "Upload Speed: {0:0.00} kB/s", manager.Monitor.UploadSpeed / 1024.0);
AppendFormat(sb, "Total Downloaded: {0:0.00} MB", manager.Monitor.DataBytesDownloaded / (1024.0 * 1024.0));
AppendFormat(sb, "Total Uploaded: {0:0.00} MB", manager.Monitor.DataBytesUploaded / (1024.0 * 1024.0));
MonoTorrent.Client.Tracker.ITracker tracker = manager.TrackerManager.CurrentTracker;
//AppendFormat(sb, "Tracker Status: {0}", tracker == null ? "<no tracker>" : tracker.State.ToString());
AppendFormat(sb, "Warning Message: {0}", tracker == null ? "<no tracker>" : tracker.WarningMessage);
AppendFormat(sb, "Failure Message: {0}", tracker == null ? "<no tracker>" : tracker.FailureMessage);
if (manager.PieceManager != null)
{
AppendFormat(sb, "Current Requests: {0}", await manager.PieceManager.CurrentRequestCountAsync());
}
foreach (PeerId p in await manager.GetPeersAsync())
{
AppendFormat(sb, "\t{2} - {1:0.00}/{3:0.00}kB/sec - {0}", p.Uri,
p.Monitor.DownloadSpeed / 1024.0,
p.AmRequestingPiecesCount,
p.Monitor.UploadSpeed / 1024.0);
}
AppendFormat(sb, "", null);
if (manager.Torrent != null)
{
foreach (TorrentFile file in manager.Torrent.Files)
{
AppendFormat(sb, "{1:0.00}% - {0}", file.Path, file.BitField.PercentComplete);
}
}
}
Console.Clear();
Console.WriteLine(sb.ToString());
listener.ExportTo(Console.Out);
}
Thread.Sleep(500);
}
}
