public void DropClient(Connection toDrop)
{
if (preConns.Contains(toDrop))
{
preConns.Remove(toDrop);
}
else
{
conns.Remove(toDrop);
OpenRA.Network.Session.Client dropClient = lobbyInfo.Clients.Where(c1 => c1.Index == toDrop.PlayerIndex).Single();
// Send disconnected order, even if still in the lobby
SendMessage("{0} has disconnected.".F(dropClient.Name));
DispatchOrdersToClients(toDrop, 0, new ServerOrder("Disconnected", "").Serialize());
lobbyInfo.Clients.RemoveAll(c => c.Index == toDrop.PlayerIndex);
// Client was the server admin
// TODO: Reassign admin for game in progress via an order
if (lobbyInfo.GlobalSettings.Dedicated && dropClient.IsAdmin && State == ServerState.WaitingPlayers)
{
// Remove any bots controlled by the admin
lobbyInfo.Clients.RemoveAll(c => c.Bot != null && c.BotControllerClientIndex == toDrop.PlayerIndex);
OpenRA.Network.Session.Client nextAdmin = lobbyInfo.Clients.Where(c1 => c1.Bot == null)
.OrderBy(c => c.Index).FirstOrDefault();
if (nextAdmin != null)
{
nextAdmin.IsAdmin = true;
SendMessage("{0} is now the admin.".F(nextAdmin.Name));
}
}
DispatchOrders(toDrop, toDrop.MostRecentFrame, new byte[] { 0xbf });
if (conns.Count != 0 || lobbyInfo.GlobalSettings.Dedicated)
{
SyncLobbyInfo();
}
if (!lobbyInfo.GlobalSettings.Dedicated && dropClient.IsAdmin)
{
Shutdown();
}
}
try
{
toDrop.socket.Disconnect(false);
}
catch { }
}
public void DropClient(Connection toDrop)
{
if (preConns.Contains(toDrop))
{
preConns.Remove(toDrop);
}
else
{
conns.Remove(toDrop);
SendChat(toDrop, "Connection Dropped");
OpenRA.Network.Session.Client dropClient = lobbyInfo.Clients.Where(c1 => c1.Index == toDrop.PlayerIndex).Single();
if (GameStarted)
{
SendDisconnected(toDrop); /* Report disconnection */
}
lobbyInfo.Clients.RemoveAll(c => c.Index == toDrop.PlayerIndex);
// reassign admin if necessary
if (lobbyInfo.GlobalSettings.Dedicated && dropClient.IsAdmin && !GameStarted)
{
if (lobbyInfo.Clients.Count() > 0)
{
// client was not alone on the server but he was admin: set admin to the last connected client
OpenRA.Network.Session.Client lastClient = lobbyInfo.Clients.Last();
lastClient.IsAdmin = true;
SendChat(toDrop, "Admin left! {0} is a new admin now!".F(lastClient.Name));
}
}
DispatchOrders(toDrop, toDrop.MostRecentFrame, new byte[] { 0xbf });
if (conns.Count != 0 || lobbyInfo.GlobalSettings.Dedicated)
{
SyncLobbyInfo();
}
}
try
{
toDrop.socket.Disconnect(false);
}
catch { }
}
void ValidateClient(Connection newConn, string data)
{
try
{
if (State == ServerState.GameStarted)
{
Log.Write("server", "Rejected connection from {0}; game is already started.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "The game has already started");
DropClient(newConn);
return;
}
var handshake = HandshakeResponse.Deserialize(data);
var client = handshake.Client;
var mods = handshake.Mods;
// Check that the client has compatible mods
var validMod = mods.All(m => m.Contains('@')) && //valid format
mods.Count() == Game.CurrentMods.Count() && //same number
mods.Select(m => Pair.New(m.Split('@')[0], m.Split('@')[1])).All(kv => Game.CurrentMods.ContainsKey(kv.First));
if (!validMod)
{
Log.Write("server", "Rejected connection from {0}; mods do not match.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "Your mods don't match the server");
DropClient(newConn);
return;
}
var validVersion = mods.Select(m => Pair.New(m.Split('@')[0], m.Split('@')[1])).All(
kv => kv.Second == Game.CurrentMods[kv.First].Version);
if (!validVersion && !lobbyInfo.GlobalSettings.AllowVersionMismatch)
{
Log.Write("server", "Rejected connection from {0}; Not running the same version.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "Not running the same version.");
DropClient(newConn);
return;
}
client.IpAddress = ((IPEndPoint)newConn.socket.RemoteEndPoint).Address.ToString();
// Check if IP is banned
if (lobbyInfo.GlobalSettings.Ban != null)
{
if (lobbyInfo.GlobalSettings.Ban.Contains(client.IpAddress))
{
Console.WriteLine("Rejected connection from " + client.Name + "(" + newConn.socket.RemoteEndPoint + "); Banned.");
Log.Write("server", "Rejected connection from {0}; Banned.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "You are banned from the server!");
DropClient(newConn);
return;
}
}
// Promote connection to a valid client
preConns.Remove(newConn);
conns.Add(newConn);
// Enforce correct PlayerIndex and Slot
client.Index = newConn.PlayerIndex;
client.Slot = lobbyInfo.FirstEmptySlot();
if (client.Slot != null)
{
SyncClientToPlayerReference(client, Map.Players[client.Slot]);
}
lobbyInfo.Clients.Add(client);
// Assume that first validated client is server admin
if (lobbyInfo.Clients.Where(c1 => c1.Bot == null).Count() == 1)
{
client.IsAdmin = true;
}
OpenRA.Network.Session.Client clientAdmin = lobbyInfo.Clients.Where(c1 => c1.IsAdmin).Single();
Log.Write("server", "Client {0}: Accepted connection from {1}.",
newConn.PlayerIndex, newConn.socket.RemoteEndPoint);
foreach (var t in ServerTraits.WithInterface <IClientJoined>())
{
t.ClientJoined(this, newConn);
}
SyncLobbyInfo();
SendMessage("{0} has joined the server.".F(client.Name));
// Send initial ping
SendOrderTo(newConn, "Ping", Environment.TickCount.ToString());
if (File.Exists("{0}motd_{1}.txt".F(Platform.SupportDir, lobbyInfo.GlobalSettings.Mods[0])))
{
var motd = System.IO.File.ReadAllText("{0}motd_{1}.txt".F(Platform.SupportDir, lobbyInfo.GlobalSettings.Mods[0]));
SendOrderTo(newConn, "Message", motd);
}
if (lobbyInfo.GlobalSettings.Dedicated)
{
var message = client.IsAdmin ? "You are the server admin." : "{0} is the server admin.".F(clientAdmin.Name);
SendOrderTo(newConn, "Message", message);
}
if (mods.Any(m => m.Contains("{DEV_VERSION}")))
{
SendMessage("{0} is running an unversioned development build, ".F(client.Name) +
"and may desynchronize the game state if they have incompatible rules.");
}
}
catch (Exception) { DropClient(newConn); }
}
void ValidateClient(Connection newConn, string data)
{
try
{
if (GameStarted)
{
Log.Write("server", "Rejected connection from {0}; game is already started.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "The game has already started");
DropClient(newConn);
return;
}
var handshake = HandshakeResponse.Deserialize(data);
var client = handshake.Client;
var mods = handshake.Mods;
// Check that the client has compatible mods
var valid = mods.All(m => m.Contains('@')) && //valid format
mods.Count() == Game.CurrentMods.Count() && //same number
mods.Select(m => Pair.New(m.Split('@')[0], m.Split('@')[1])).All(kv => Game.CurrentMods.ContainsKey(kv.First) &&
(kv.Second == "{DEV_VERSION}" || Game.CurrentMods[kv.First].Version == "{DEV_VERSION}" || kv.Second == Game.CurrentMods[kv.First].Version));
if (!valid)
{
Log.Write("server", "Rejected connection from {0}; mods do not match.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "Your mods don't match the server");
DropClient(newConn);
return;
}
// Drop DEV_VERSION if it's a Dedicated
if (lobbyInfo.GlobalSettings.Dedicated && mods.Any(m => m.Contains("{DEV_VERSION}")))
{
Log.Write("server", "Rejected connection from {0}; DEV_VERSION is not allowed here.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "DEV_VERSION is not allowed here");
DropClient(newConn);
return;
}
// Check if IP is banned
if (lobbyInfo.GlobalSettings.Ban != null)
{
var remote_addr = ((IPEndPoint)newConn.socket.RemoteEndPoint).Address.ToString();
if (lobbyInfo.GlobalSettings.Ban.Contains(remote_addr))
{
Console.WriteLine("Rejected connection from " + client.Name + "(" + newConn.socket.RemoteEndPoint + "); Banned.");
Log.Write("server", "Rejected connection from {0}; Banned.",
newConn.socket.RemoteEndPoint);
SendOrderTo(newConn, "ServerError", "You are banned from the server!");
DropClient(newConn);
return;
}
}
// Promote connection to a valid client
preConns.Remove(newConn);
conns.Add(newConn);
// Enforce correct PlayerIndex and Slot
client.Index = newConn.PlayerIndex;
client.Slot = lobbyInfo.FirstEmptySlot();
if (client.Slot != null)
{
SyncClientToPlayerReference(client, Map.Players[client.Slot]);
}
lobbyInfo.Clients.Add(client);
//Assume that first validated client is server admin
if (lobbyInfo.Clients.Count == 1)
{
client.IsAdmin = true;
}
OpenRA.Network.Session.Client clientAdmin = lobbyInfo.Clients.Where(c1 => c1.IsAdmin).Single();
Log.Write("server", "Client {0}: Accepted connection from {1}",
newConn.PlayerIndex, newConn.socket.RemoteEndPoint);
foreach (var t in ServerTraits.WithInterface <IClientJoined>())
{
t.ClientJoined(this, newConn);
}
SyncLobbyInfo();
SendChat(newConn, "has joined the game.");
if (lobbyInfo.GlobalSettings.Dedicated)
{
if (lobbyInfo.GlobalSettings.DedicatedMOTD != null)
{
SendChatTo(newConn, lobbyInfo.GlobalSettings.DedicatedMOTD);
}
if (client.IsAdmin)
{
SendChatTo(newConn, " You are admin now!");
}
else
{
SendChatTo(newConn, " Current admin is {0}".F(clientAdmin.Name));
}
}
if (mods.Any(m => m.Contains("{DEV_VERSION}")))
{
SendChat(newConn, "is running a development version, " +
"and may cause desync if they have any incompatible changes.");
}
}
catch (Exception) { DropClient(newConn); }
}
