private async Task <IConnection> GetTransferConnectionOutboundIndirectAsync(string username, int token, CancellationToken cancellationToken)
{
Diagnostic.Debug($"Soliciting indirect transfer connection to {username} with token {token}");
var solicitationToken = SoulseekClient.GetNextToken();
try
{
PendingSolicitationDictionary.TryAdd(solicitationToken, username);
await SoulseekClient.ServerConnection
.WriteAsync(new ConnectToPeerRequest(solicitationToken, username, Constants.ConnectionType.Transfer).ToByteArray(), cancellationToken)
.ConfigureAwait(false);
using (var incomingConnection = await SoulseekClient.Waiter
.Wait <IConnection>(new WaitKey(Constants.WaitKey.SolicitedPeerConnection, username, solicitationToken), SoulseekClient.Options.TransferConnectionOptions.ConnectTimeout, cancellationToken)
.ConfigureAwait(false))
{
var connection = ConnectionFactory.GetConnection(
incomingConnection.IPEndPoint,
SoulseekClient.Options.TransferConnectionOptions,
incomingConnection.HandoffTcpClient());
Diagnostic.Debug($"Indirect transfer connection to {username} ({incomingConnection.IPEndPoint}) handed off. (old: {incomingConnection.Id}, new: {connection.Id})");
connection.Type = ConnectionTypes.Outbound | ConnectionTypes.Indirect;
connection.Disconnected += (sender, e) => Diagnostic.Debug($"Transfer connection for token {token} ({incomingConnection.IPEndPoint}) disconnected. (type: {connection.Type}, id: {connection.Id})");
Diagnostic.Debug($"Indirect transfer connection for {token} ({connection.IPEndPoint}) established. (type: {connection.Type}, id: {connection.Id})");
return(connection);
}
}
catch (Exception ex)
{
Diagnostic.Debug($"Failed to establish an indirect transfer connection to {username} with token {token}: {ex.Message}");
throw;
}
finally
{
PendingSolicitationDictionary.TryRemove(solicitationToken, out var _);
}
}
private async Task <IConnection> GetTransferConnectionOutboundDirectAsync(IPEndPoint ipEndPoint, int token, CancellationToken cancellationToken)
{
Diagnostic.Debug($"Attempting direct transfer connection for token {token} to {ipEndPoint}");
var connection = ConnectionFactory.GetConnection(ipEndPoint, SoulseekClient.Options.TransferConnectionOptions);
connection.Type = ConnectionTypes.Outbound | ConnectionTypes.Direct;
connection.Disconnected += (sender, e) => Diagnostic.Debug($"Transfer connection for token {token} to {ipEndPoint} disconnected. (type: {connection.Type}, id: {connection.Id})");
try
{
await connection.ConnectAsync(cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
Diagnostic.Debug($"Failed to establish a direct transfer connection for token {token} to ({ipEndPoint}): {ex.Message}");
connection.Dispose();
throw;
}
Diagnostic.Debug($"Direct transfer connection for {token} to {connection.IPEndPoint} established. (type: {connection.Type}, id: {connection.Id})");
return(connection);
}