private void EndCheckEncryption(IAsyncResult result)
{
var id = (PeerId)result.AsyncState;
try
{
byte[] initialData;
EncryptorFactory.EndCheckEncryption(result, out initialData);
if (initialData != null && initialData.Length > 0)
{
throw new EncryptionException("unhandled initial data");
}
var e = _engine.Settings.AllowedEncryption;
if (id.Encryptor is RC4 && !Toolbox.HasEncryption(e, EncryptionTypes.RC4Full) ||
id.Encryptor is RC4Header && !Toolbox.HasEncryption(e, EncryptionTypes.RC4Header) ||
id.Encryptor is PlainTextEncryption && !Toolbox.HasEncryption(e, EncryptionTypes.PlainText))
{
CleanupSocket(id, id.Encryptor.GetType().Name + " encryption is not enabled");
}
else
{
// Create a handshake message to send to the peer
var handshake = new HandshakeMessage(id.TorrentManager.InfoHash, _engine.PeerId,
VersionInfo.ProtocolStringV100);
SendMessage(id, handshake, _handshakeSentCallback);
}
}
catch
{
id.Peer.Encryption &= ~EncryptionTypes.RC4Full;
id.Peer.Encryption &= ~EncryptionTypes.RC4Header;
CleanupSocket(id, "Failed encryptor check");
}
}
private void EndCheckEncryption(IAsyncResult result)
{
PeerId id = (PeerId)result.AsyncState;
try
{
byte[] initialData;
EncryptorFactory.EndCheckEncryption(result, out initialData);
if (initialData != null && initialData.Length == HandshakeMessage.HandshakeLength)
{
HandshakeMessage message = new HandshakeMessage();
message.Decode(initialData, 0, initialData.Length);
handleHandshake(id, message);
}
else if (initialData.Length > 0)
{
throw new Exception("Argh. I can't handle this scenario. It also shouldn't happen. Ever.");
}
else
{
PeerIO.EnqueueReceiveHandshake(id.Connection, id.Decryptor, handshakeReceivedCallback, id);
}
}
catch
{
id.Connection.Dispose();
}
}
public void InitiateTransfer(CustomConnection connection)
{
PeerId id = new PeerId(new Peer("", connection.Uri), rig.Manager);
id.Connection = connection;
byte[] data;
EncryptorFactory.EndCheckEncryption(EncryptorFactory.BeginCheckEncryption(id, 68, null, null, new InfoHash[] { id.TorrentManager.InfoHash }), out data);
decryptor = id.Decryptor;
encryptor = id.Encryptor;
TestHandshake(data, connection);
}
public void Setup(bool metadataMode, string metadataPath)
{
pair = new ConnectionPair(55432);
rig = TestRig.CreateSingleFile(1024 * 1024 * 1024, 32768, metadataMode);
rig.MetadataPath = metadataPath;
rig.RecreateManager();
rig.Manager.HashChecked = true;
rig.Manager.Start();
rig.AddConnection(pair.Outgoing);
var connection = pair.Incoming;
PeerId id = new PeerId(new Peer("", connection.Uri), rig.Manager);
id.Connection = connection;
byte[] data;
EncryptorFactory.EndCheckEncryption(EncryptorFactory.BeginCheckEncryption(id, 68, null, null, new InfoHash[] { id.TorrentManager.InfoHash }), out data);
decryptor = id.Decryptor;
encryptor = id.Encryptor;
}