/// <summary>
/// Creates a new proxy between 2 targets.
/// </summary>
/// <param name="a">Point A.</param>
/// <param name="b">Point B.</param>
public Proxy(HostTarget a, HostTarget b)
{
A = a;
B = b;
ProxyServer = new ActiveEndPoint <T>(B);
ProxyServer.SessionSpawned += ProxyServer_SessionSpawned;
}
/// <summary>
/// Handles this server sessions spawn.
/// </summary>
/// <param name="sender">Local session.</param>
/// <param name="e">Formal junk.</param>
private void RoutingServer_SessionSpawned(object sender, EventArgs e)
{
var session = sender as ActiveSession <T>;
session.End += Session_End;
session.IsClientSide = true;
session.ExceptionThrown += AllTargets_ExceptionThrown;
session.MessageReceived += Session_MessageReceived;
var servers = new List <ActiveEndPoint <T> >();
for (int i = 0, n = Targets.Length; i < n; i++)
{
var remote = new ActiveEndPoint <T>(Targets[i], session)
{
Index = i
};
remote.ExceptionThrown += AllTargets_ExceptionThrown;
remote.MessageReceived += Remote_MessageReceived;
remote.SessionClosed += Remote_SessionClosed;
servers.Add(remote);
}
session.Remotes = servers.ToArray();
session.Route = RouteDefault;
session.IsBroadcast = IsBroadcast;
SessionStarted?.Invoke(session, EventArgs.Empty);
foreach (var server in session.Remotes)
{
server.Connect();
}
if (!session.Remotes.All(i => i.IsConnected))
{
session.Close();
}
}
/// <summary>
/// Creates a new session.
/// </summary>
/// <param name="owner">Owner end point.</param>
/// <param name="socket">Session socket.</param>
/// <param name="id">Session identifier.</param>
public ActiveSession(ActiveEndPoint <T> owner, Socket socket, int id)
{
Owner = owner;
Id = id;
Socket = socket;
Stream = new NetworkStreamEx(socket, Owner.Host.AuthenticationData);
Stream.Authenticate(); // TODO: make authentication optional for StartTLS support
if (typeof(T) == typeof(byte[]))
{
Transceiver = new BinaryTransceiver() as ITransceiver <T>;
}
else if (typeof(T) == typeof(BinaryPacket))
{
Transceiver = new FastBinaryTransceiver() as ITransceiver <T>;
}
else if (typeof(T) == typeof(X690.Message))
{
Transceiver = new X690Transceiver() as ITransceiver <T>;
}
else if (typeof(T) == typeof(string))
{
Transceiver = new StringTransceiver() as ITransceiver <T>;
}
else
{
throw new InvalidDataException("Unsupported message type.");
}
}
/// <summary>
/// Creates a new end point router from common target to multiple remote targets.
/// </summary>
/// <param name="common">Common end.</param>
/// <param name="targets">Remote targets.</param>
public Router(HostTarget common, params HostTarget[] targets)
{
Common = common;
Targets = targets;
RoutingServer = new ActiveEndPoint <T>(Common)
{
Index = -1
};
RoutingServer.ExceptionThrown += AllTargets_ExceptionThrown;
RoutingServer.SessionSpawned += RoutingServer_SessionSpawned;
}
/// <summary>
/// Handles this server sessions spawn.
/// </summary>
/// <param name="sender">Local session.</param>
/// <param name="e">Formal junk.</param>
private void ProxyServer_SessionSpawned(object sender, EventArgs e)
{
var session = sender as ActiveSession <T>;
session.End += Session_End;
session.IsClientSide = true;
session.ExceptionThrown += Session_ExceptionThrown;
session.MessageReceived += Session_MessageReceived;
var remote = new ActiveEndPoint <T>(A, session);
remote.MessageReceived += Remote_MessageReceived;
remote.ExceptionThrown += Session_ExceptionThrown;
session.Remotes = new[] { remote };
SessionStarted?.Invoke(this, EventArgs.Empty);
remote.Connect();
if (!remote.IsConnected)
{
session.Close();
}
}