/// <summary>
/// Initializes a new instance of the ServiceConnection class.
/// </summary>
/// <param name="connected">
/// The socket for the new connection.
/// </param>
/// <param name="token">
/// The token for this client of the gatekeeper service,
/// or zero if this is the registration connection.
/// </param>
/// <param name="handler">
/// The handler routine to call upon forwarding a connection.
/// </param>
public ServiceConnection(
string serverHost,
Socket connected,
uint token,
ForwardingHandler handler,
VLogger logger)
{
this.useSecureStream = true;
// -
// Set up the connection state.
// -
this.socket = connected;
this.netstream = new NetworkStream(this.socket, true /*ownSocket*/);
this.sslServerHost = serverHost;
if (this.useSecureStream)
{
this.sslStream = new SslStream(
this.netstream,
false /* leaveInnerStreamOpen */,
new RemoteCertificateValidationCallback(ValidateServerCertificate),
null
);
// The server name must match the name on the server certificate.
try
{
sslStream.AuthenticateAsClient(this.sslServerHost);
}
catch (Exception e)
{
logger.Log("Exception: {0}", e.Message);
if (e.InnerException != null)
{
logger.Log("Inner exception: {0}", e.InnerException.Message);
}
logger.Log("Authentication failed - closing the connection.");
this.ShutdownAndClose();
return;
}
}
this.clientToken = token;
this.handler = handler;
this.forwarding = false;
this.identifier = HomeOS.Shared.Gatekeeper.Settings.HomeId;
this.simpleAuthentication = HomeOS.Shared.Gatekeeper.Settings.HomePassword;
this.logger = logger;
//#if false
//-
//We use keep-alives on the home <-> cloud service
//connection in an attempt to prevent NAT/firewall
//state from timing out and dropping our connection.
//-
StaticUtilities.SetKeepAlive(this.socket, 120000, 1000);
//#endif
// -
// Prepare our buffer space and asynchronous state holder.
// This is currently just a simplistic single buffer system.
// Note that this code assumes that the buffer is larger than
// the largest possible single message (currently 257 bytes).
// -
this.buffer = new byte[1500];
this.bufferOffset = 0;
this.streamBufState = new StreamBufferState();
this.streamBufState.SetBuffer(this.buffer, 0, this.buffer.Length);
// -
// Start the dialog with our peer.
// -
this.AppendMessage(
MessageType.Version,
ServiceConnection.ProtocolVersion);
this.SendMessage();
}
