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Client/server handshake. Only checks that the correct mods are active.

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This commit is contained in:
Paul Chote
2010-12-31 11:41:25 +13:00
parent dc012c0faf
commit 8f9e32dcc0
5 changed files with 145 additions and 24 deletions
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84
OpenRA.Game/Server/Server.cs
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@@ -24,7 +24,12 @@ namespace OpenRA.Server
{
public class Server
{
// Valid player connections
public List<Connection> conns = new List<Connection>();
// Pre-verified player connections
public List<Connection> preConns = new List<Connection>();
TcpListener listener = null;
Dictionary<int, List<Connection>> inFlightFrames
= new Dictionary<int, List<Connection>>();
@@ -88,24 +93,31 @@ namespace OpenRA.Server
var checkRead = new ArrayList();
checkRead.Add( listener.Server );
foreach( var c in conns ) checkRead.Add( c.socket );
foreach( var c in preConns ) checkRead.Add( c.socket );
Socket.Select( checkRead, null, null, timeout );
foreach( Socket s in checkRead )
if( s == listener.Server ) AcceptConnection();
else if (preConns.Count > 0)
{
var p = preConns.SingleOrDefault( c => c.socket == s );
if (p != null) p.ReadData( this );
}
else if (conns.Count > 0) conns.Single( c => c.socket == s ).ReadData( this );
foreach (var t in ServerTraits.WithInterface<ITick>())
t.Tick(this);
if (conns.Count() == 0 || shutdown)
if (shutdown)
break;
}
GameStarted = false;
foreach (var t in ServerTraits.WithInterface<INotifyServerShutdown>())
t.ServerShutdown(this);
preConns.Clear();
conns.Clear();
try { listener.Stop(); }
catch { }
@@ -120,7 +132,7 @@ namespace OpenRA.Server
int ChooseFreePlayerIndex()
{
for (var i = 0; i < 256; i++)
if (conns.All(c => c.PlayerIndex != i))
if (conns.All(c => c.PlayerIndex != i) && preConns.All(c => c.PlayerIndex != i))
return i;
throw new InvalidOperationException("Already got 256 players");
@@ -134,7 +146,8 @@ namespace OpenRA.Server
{
if (!listener.Server.IsBound) return;
newSocket = listener.AcceptSocket();
}catch
}
catch
{
/* could have an exception here when listener 'goes away' when calling AcceptConnection! */
/* alternative would be to use locking but the listener doesnt go away without a reason */
@@ -142,6 +155,26 @@ namespace OpenRA.Server
}
var newConn = new Connection { socket = newSocket };
try
{
newConn.socket.Blocking = false;
newConn.socket.NoDelay = true;
// assign the player number.
newConn.PlayerIndex = ChooseFreePlayerIndex();
newConn.socket.Send(BitConverter.GetBytes(ProtocolVersion.Version));
newConn.socket.Send(BitConverter.GetBytes(newConn.PlayerIndex));
preConns.Add(newConn);
// Dispatch a handshake order
DispatchOrdersToClient(newConn, 0, 0, new ServerOrder("HandshakeRequest", lobbyInfo.Serialize()).Serialize());
}
catch (Exception) { DropClient(newConn); }
}
void AcceptPlayer(Connection newConn)
{
try
{
if (GameStarted)
@@ -152,17 +185,13 @@ namespace OpenRA.Server
return;
}
newConn.socket.Blocking = false;
newConn.socket.NoDelay = true;
// assign the player number.
newConn.PlayerIndex = ChooseFreePlayerIndex();
newConn.socket.Send(BitConverter.GetBytes(ProtocolVersion.Version));
newConn.socket.Send(BitConverter.GetBytes(newConn.PlayerIndex));
preConns.Remove(newConn);
conns.Add(newConn);
foreach (var t in ServerTraits.WithInterface<IClientJoined>())
t.ClientJoined(this, newConn);
Console.WriteLine("Server: Accepted connection as player");
}
catch (Exception) { DropClient(newConn); }
}
@@ -246,20 +275,29 @@ namespace OpenRA.Server
switch (so.Name)
{
case "Command":
bool handled = false;
foreach (var t in ServerTraits.WithInterface<IInterpretCommand>())
if ((handled = t.InterpretCommand(this, conn, GetClient(conn), so.Data)))
break;
if (!handled)
{
bool handled = false;
foreach (var t in ServerTraits.WithInterface<IInterpretCommand>())
if ((handled = t.InterpretCommand(this, conn, GetClient(conn), so.Data)))
break;
if (!handled)
{
Log.Write("server", "Unknown server command: {0}", so.Data);
SendChatTo(conn, "Unknown server command: {0}".F(so.Data));
}
Log.Write("server", "Unknown server command: {0}", so.Data);
SendChatTo(conn, "Unknown server command: {0}".F(so.Data));
}
break;
case "HandshakeResponse":
Console.WriteLine("Server Recieved Handshake response");
var response = HandshakeResponse.Deserialize(so.Data);
// Validate versions again
// Validate password
// Accept connection; set name, color, etc.
AcceptPlayer(conn);
break;
case "Chat":
case "TeamChat":
var fromClient = GetClient(conn);