void CloseTunnel()
{
// if a tunnel is opened signal it to stop
if (tunnelState == TunnelManagerState.Started)
{
tunnelState = TunnelManagerState.StopSignaled;
}
}
void OpenSelectedTunnel()
{
// if no tunnel is open start one
if (tunnelState == TunnelManagerState.Stopped)
{
tunnelConfiguration = GetCurrentTunnelConfiguration(); // extract tunnel configuration while on the UI thread
tunnelTask = Task.Factory.StartNew(TunnelWorkerMethod).ContinueWith((t) =>
{
SetCaption(applicationText);
SetGuiLockedState(false);
tunnelState = TunnelManagerState.Stopped;
});
}
}
void TunnelWorkerMethod()
{
tunnelState = TunnelManagerState.Starting;
SetGuiLockedState(true);
if (tunnelConfiguration != null)
{
SetMessage("Initializing...");
// parse local endpoint
string localIp;
int localPort;
var localEndpointParts = tunnelConfiguration.LocalEndpoint.Split(':');
if (localEndpointParts.Length != 2)
{
SetMessage("Invalid local endpoint format!");
return;
}
localIp = localEndpointParts[0];
if (string.Compare(localIp, "127.0.0.1") != 0)
{
SetMessage("Only local IP 127.0.0.1 is supported!");
return;
}
if (int.TryParse(localEndpointParts[1], out localPort) == false)
{
SetMessage("Invalid local endpoint format!");
return;
}
// parse remote endpoint
string remoteIp;
int remotePort;
var remoteEndpointParts = tunnelConfiguration.RemoteEndpoint.Split(':');
if (remoteEndpointParts.Length != 2)
{
SetMessage("Invalid remote endpoint format!");
return;
}
remoteIp = remoteEndpointParts[0];
if (int.TryParse(remoteEndpointParts[1], out remotePort) == false)
{
SetMessage("Invalid remote endpoint format!");
return;
}
SetMessage("Creating session...");
using (var session = nabto.CreateSession(tunnelConfiguration.Email, tunnelConfiguration.Password))
{
if (session == null)
{
SetMessage("Failed creating session!");
return;
}
SetMessage("Creating tunnel...");
using (var tunnel = session.CreateTunnel(tunnelConfiguration.Server, localPort, remoteIp, remotePort))
{
if (tunnel == null)
{
SetMessage("Failed creating tunnel!");
return;
}
SetCaption(tunnelConfiguration.Name + " - " + applicationText);
tunnelState = TunnelManagerState.Started;
var version = tunnel.Version;
while (tunnelState == TunnelManagerState.Started)
{
var state = tunnel.State;
SetMessage(string.Format("Tunnel state: {0}", state.ToString()));
if (state == TunnelState.Closed)
{
tunnelState = TunnelManagerState.StopSignaled;
}
Thread.Sleep(100);
}
}
SetMessage("Tunnel closed.");
}
SetMessage("Session closed.");
}
}
