public void ClientAdminRead(IReadMessage incMsg)
{
bool hasPermission = incMsg.ReadBoolean();
if (!hasPermission)
{
incMsg.ReadPadBits();
return;
}
bool isOwner = incMsg.ReadBoolean();
incMsg.ReadPadBits();
bannedPlayers.Clear();
UInt32 bannedPlayerCount = incMsg.ReadVariableUInt32();
for (int i = 0; i < (int)bannedPlayerCount; i++)
{
string name = incMsg.ReadString();
UInt16 uniqueIdentifier = incMsg.ReadUInt16();
bool isRangeBan = incMsg.ReadBoolean();
bool includesExpiration = incMsg.ReadBoolean();
incMsg.ReadPadBits();
DateTime?expiration = null;
if (includesExpiration)
{
double hoursFromNow = incMsg.ReadDouble();
expiration = DateTime.Now + TimeSpan.FromHours(hoursFromNow);
}
string reason = incMsg.ReadString();
string endPoint = "";
UInt64 steamID = 0;
if (isOwner)
{
endPoint = incMsg.ReadString();
steamID = incMsg.ReadUInt64();
}
else
{
endPoint = "Endpoint concealed by host";
steamID = 0;
}
bannedPlayers.Add(new BannedPlayer(name, uniqueIdentifier, isRangeBan, endPoint, steamID, reason, expiration));
}
if (banFrame != null)
{
var parent = banFrame.Parent;
parent.RemoveChild(banFrame);
CreateBanFrame(parent);
}
}
public void ClientAdminRead(IReadMessage incMsg)
{
bool hasPermission = incMsg.ReadBoolean();
if (!hasPermission)
{
incMsg.ReadPadBits();
return;
}
bool isOwner = incMsg.ReadBoolean();
incMsg.ReadPadBits();
bannedPlayers.Clear();
UInt32 bannedPlayerCount = incMsg.ReadVariableUInt32();
for (int i = 0; i < (int)bannedPlayerCount; i++)
{
string name = incMsg.ReadString();
UInt16 uniqueIdentifier = incMsg.ReadUInt16();
bool isRangeBan = incMsg.ReadBoolean(); incMsg.ReadPadBits();
string ip = "";
UInt64 steamID = 0;
if (isOwner)
{
ip = incMsg.ReadString();
steamID = incMsg.ReadUInt64();
}
else
{
ip = "IP concealed by host";
steamID = 0;
}
bannedPlayers.Add(new BannedPlayer(name, uniqueIdentifier, isRangeBan, ip, steamID));
}
if (banFrame != null)
{
var parent = banFrame.Parent;
parent.RemoveChild(banFrame);
CreateBanFrame(parent);
}
}
private void ReadConnectionInitializationStep(PendingClient pendingClient, IReadMessage inc)
{
if (netServer == null)
{
return;
}
pendingClient.TimeOut = NetworkConnection.TimeoutThreshold;
ConnectionInitialization initializationStep = (ConnectionInitialization)inc.ReadByte();
//DebugConsole.NewMessage(initializationStep+" "+pendingClient.InitializationStep);
if (pendingClient.InitializationStep != initializationStep)
{
return;
}
pendingClient.UpdateTime = Timing.TotalTime + Timing.Step;
switch (initializationStep)
{
case ConnectionInitialization.SteamTicketAndVersion:
string name = Client.SanitizeName(inc.ReadString());
UInt64 steamId = inc.ReadUInt64();
UInt16 ticketLength = inc.ReadUInt16();
inc.BitPosition += ticketLength * 8; //skip ticket, owner handles steam authentication
if (!Client.IsValidName(name, serverSettings))
{
RemovePendingClient(pendingClient, DisconnectReason.InvalidName, "The name \"" + name + "\" is invalid");
return;
}
string version = inc.ReadString();
bool isCompatibleVersion = NetworkMember.IsCompatible(version, GameMain.Version.ToString()) ?? false;
if (!isCompatibleVersion)
{
RemovePendingClient(pendingClient, DisconnectReason.InvalidVersion,
$"DisconnectMessage.InvalidVersion~[version]={GameMain.Version.ToString()}~[clientversion]={version}");
GameServer.Log(name + " (" + pendingClient.SteamID.ToString() + ") couldn't join the server (incompatible game version)", ServerLog.MessageType.Error);
DebugConsole.NewMessage(name + " (" + pendingClient.SteamID.ToString() + ") couldn't join the server (incompatible game version)", Microsoft.Xna.Framework.Color.Red);
return;
}
int contentPackageCount = (int)inc.ReadVariableUInt32();
List <ClientContentPackage> clientContentPackages = new List <ClientContentPackage>();
for (int i = 0; i < contentPackageCount; i++)
{
string packageName = inc.ReadString();
string packageHash = inc.ReadString();
clientContentPackages.Add(new ClientContentPackage(packageName, packageHash));
}
//check if the client is missing any of our packages
List <ContentPackage> missingPackages = new List <ContentPackage>();
foreach (ContentPackage serverContentPackage in GameMain.SelectedPackages)
{
if (!serverContentPackage.HasMultiplayerIncompatibleContent)
{
continue;
}
bool packageFound = clientContentPackages.Any(cp => cp.Name == serverContentPackage.Name && cp.Hash == serverContentPackage.MD5hash.Hash);
if (!packageFound)
{
missingPackages.Add(serverContentPackage);
}
}
//check if the client is using packages we don't have
List <ClientContentPackage> redundantPackages = new List <ClientContentPackage>();
foreach (ClientContentPackage clientContentPackage in clientContentPackages)
{
bool packageFound = GameMain.SelectedPackages.Any(cp => cp.Name == clientContentPackage.Name && cp.MD5hash.Hash == clientContentPackage.Hash);
if (!packageFound)
{
redundantPackages.Add(clientContentPackage);
}
}
if (missingPackages.Count == 1)
{
RemovePendingClient(pendingClient, DisconnectReason.MissingContentPackage,
$"DisconnectMessage.MissingContentPackage~[missingcontentpackage]={GetPackageStr(missingPackages[0])}");
GameServer.Log(name + " (" + pendingClient.SteamID + ") couldn't join the server (missing content package " + GetPackageStr(missingPackages[0]) + ")", ServerLog.MessageType.Error);
return;
}
else if (missingPackages.Count > 1)
{
List <string> packageStrs = new List <string>();
missingPackages.ForEach(cp => packageStrs.Add(GetPackageStr(cp)));
RemovePendingClient(pendingClient, DisconnectReason.MissingContentPackage,
$"DisconnectMessage.MissingContentPackages~[missingcontentpackages]={string.Join(", ", packageStrs)}");
GameServer.Log(name + " (" + pendingClient.SteamID + ") couldn't join the server (missing content packages " + string.Join(", ", packageStrs) + ")", ServerLog.MessageType.Error);
return;
}
if (redundantPackages.Count == 1)
{
RemovePendingClient(pendingClient, DisconnectReason.IncompatibleContentPackage,
$"DisconnectMessage.IncompatibleContentPackage~[incompatiblecontentpackage]={GetPackageStr(redundantPackages[0])}");
GameServer.Log(name + " (" + pendingClient.SteamID + ") couldn't join the server (using an incompatible content package " + GetPackageStr(redundantPackages[0]) + ")", ServerLog.MessageType.Error);
return;
}
if (redundantPackages.Count > 1)
{
List <string> packageStrs = new List <string>();
redundantPackages.ForEach(cp => packageStrs.Add(GetPackageStr(cp)));
RemovePendingClient(pendingClient, DisconnectReason.IncompatibleContentPackage,
$"DisconnectMessage.IncompatibleContentPackages~[incompatiblecontentpackages]={string.Join(", ", packageStrs)}");
GameServer.Log(name + " (" + pendingClient.SteamID + ") couldn't join the server (using incompatible content packages " + string.Join(", ", packageStrs) + ")", ServerLog.MessageType.Error);
return;
}
if (!pendingClient.AuthSessionStarted)
{
pendingClient.InitializationStep = serverSettings.HasPassword ? ConnectionInitialization.Password: ConnectionInitialization.Success;
pendingClient.Name = name;
pendingClient.AuthSessionStarted = true;
}
break;
case ConnectionInitialization.Password:
int pwLength = inc.ReadByte();
byte[] incPassword = inc.ReadBytes(pwLength);
if (pendingClient.PasswordSalt == null)
{
DebugConsole.ThrowError("Received password message from client without salt");
return;
}
if (serverSettings.IsPasswordCorrect(incPassword, pendingClient.PasswordSalt.Value))
{
pendingClient.InitializationStep = ConnectionInitialization.Success;
}
else
{
pendingClient.Retries++;
if (pendingClient.Retries >= 3)
{
string banMsg = "Failed to enter correct password too many times";
serverSettings.BanList.BanPlayer(pendingClient.Name, pendingClient.SteamID, banMsg, null);
RemovePendingClient(pendingClient, DisconnectReason.Banned, banMsg);
return;
}
}
pendingClient.UpdateTime = Timing.TotalTime;
break;
}
}
protected void ReadConnectionInitializationStep(IReadMessage inc)
{
ConnectionInitialization step = (ConnectionInitialization)inc.ReadByte();
IWriteMessage outMsg;
switch (step)
{
case ConnectionInitialization.SteamTicketAndVersion:
if (initializationStep != ConnectionInitialization.SteamTicketAndVersion)
{
return;
}
outMsg = new WriteOnlyMessage();
outMsg.Write((byte)PacketHeader.IsConnectionInitializationStep);
outMsg.Write((byte)ConnectionInitialization.SteamTicketAndVersion);
outMsg.Write(Name);
outMsg.Write(ownerKey);
outMsg.Write(SteamManager.GetSteamID());
if (steamAuthTicket == null)
{
outMsg.Write((UInt16)0);
}
else
{
outMsg.Write((UInt16)steamAuthTicket.Data.Length);
outMsg.Write(steamAuthTicket.Data, 0, steamAuthTicket.Data.Length);
}
outMsg.Write(GameMain.Version.ToString());
outMsg.Write(GameMain.Config.Language);
SendMsgInternal(DeliveryMethod.Reliable, outMsg);
break;
case ConnectionInitialization.ContentPackageOrder:
if (initializationStep == ConnectionInitialization.SteamTicketAndVersion ||
initializationStep == ConnectionInitialization.Password)
{
initializationStep = ConnectionInitialization.ContentPackageOrder;
}
if (initializationStep != ConnectionInitialization.ContentPackageOrder)
{
return;
}
outMsg = new WriteOnlyMessage();
outMsg.Write((byte)PacketHeader.IsConnectionInitializationStep);
outMsg.Write((byte)ConnectionInitialization.ContentPackageOrder);
string serverName = inc.ReadString();
UInt32 cpCount = inc.ReadVariableUInt32();
ServerContentPackage corePackage = null;
List <ServerContentPackage> regularPackages = new List <ServerContentPackage>();
List <ServerContentPackage> missingPackages = new List <ServerContentPackage>();
for (int i = 0; i < cpCount; i++)
{
string name = inc.ReadString();
string hash = inc.ReadString();
UInt64 workshopId = inc.ReadUInt64();
var pkg = new ServerContentPackage(name, hash, workshopId);
if (pkg.CorePackage != null)
{
corePackage = pkg;
}
else if (pkg.RegularPackage != null)
{
regularPackages.Add(pkg);
}
else
{
missingPackages.Add(pkg);
}
}
if (missingPackages.Count > 0)
{
var nonDownloadable = missingPackages.Where(p => p.WorkshopId == 0);
if (nonDownloadable.Any())
{
string disconnectMsg;
if (nonDownloadable.Count() == 1)
{
disconnectMsg = $"DisconnectMessage.MissingContentPackage~[missingcontentpackage]={GetPackageStr(missingPackages[0])}";
}
else
{
List <string> packageStrs = new List <string>();
nonDownloadable.ForEach(cp => packageStrs.Add(GetPackageStr(cp)));
disconnectMsg = $"DisconnectMessage.MissingContentPackages~[missingcontentpackages]={string.Join(", ", packageStrs)}";
}
Close(disconnectMsg, disableReconnect: true);
OnDisconnectMessageReceived?.Invoke(DisconnectReason.MissingContentPackage + "/" + disconnectMsg);
}
else
{
Close(disableReconnect: true);
string missingModNames = "\n";
int displayedModCount = 0;
foreach (ServerContentPackage missingPackage in missingPackages)
{
missingModNames += "\n- " + GetPackageStr(missingPackage);
displayedModCount++;
if (GUI.Font.MeasureString(missingModNames).Y > GameMain.GraphicsHeight * 0.5f)
{
missingModNames += "\n\n" + TextManager.GetWithVariable("workshopitemdownloadprompttruncated", "[number]", (missingPackages.Count - displayedModCount).ToString());
break;
}
}
missingModNames += "\n\n";
var msgBox = new GUIMessageBox(
TextManager.Get("WorkshopItemDownloadTitle"),
TextManager.GetWithVariable("WorkshopItemDownloadPrompt", "[items]", missingModNames),
new string[] { TextManager.Get("Yes"), TextManager.Get("No") });
msgBox.Buttons[0].OnClicked = (yesBtn, userdata) =>
{
GameMain.ServerListScreen.Select();
GameMain.ServerListScreen.DownloadWorkshopItems(missingPackages.Select(p => p.WorkshopId), serverName, ServerConnection.EndPointString);
return(true);
};
msgBox.Buttons[0].OnClicked += msgBox.Close;
msgBox.Buttons[1].OnClicked = msgBox.Close;
}
return;
}
if (!contentPackageOrderReceived)
{
GameMain.Config.BackUpModOrder();
GameMain.Config.SwapPackages(corePackage.CorePackage, regularPackages.Select(p => p.RegularPackage).ToList());
contentPackageOrderReceived = true;
}
SendMsgInternal(DeliveryMethod.Reliable, outMsg);
break;
case ConnectionInitialization.Password:
if (initializationStep == ConnectionInitialization.SteamTicketAndVersion)
{
initializationStep = ConnectionInitialization.Password;
}
if (initializationStep != ConnectionInitialization.Password)
{
return;
}
bool incomingSalt = inc.ReadBoolean(); inc.ReadPadBits();
int retries = 0;
if (incomingSalt)
{
passwordSalt = inc.ReadInt32();
}
else
{
retries = inc.ReadInt32();
}
OnRequestPassword?.Invoke(passwordSalt, retries);
break;
}
}
public static void ClientRead(IReadMessage msg)
{
UInt16 id = msg.ReadUInt16();
ChatMessageType type = (ChatMessageType)msg.ReadByte();
PlayerConnectionChangeType changeType = PlayerConnectionChangeType.None;
string txt = "";
string styleSetting = string.Empty;
if (type != ChatMessageType.Order)
{
changeType = (PlayerConnectionChangeType)msg.ReadByte();
txt = msg.ReadString();
}
string senderName = msg.ReadString();
Character senderCharacter = null;
Client senderClient = null;
bool hasSenderClient = msg.ReadBoolean();
if (hasSenderClient)
{
UInt64 clientId = msg.ReadUInt64();
senderClient = GameMain.Client.ConnectedClients.Find(c => c.SteamID == clientId || c.ID == clientId);
if (senderClient != null)
{
senderName = senderClient.Name;
}
}
bool hasSenderCharacter = msg.ReadBoolean();
if (hasSenderCharacter)
{
senderCharacter = Entity.FindEntityByID(msg.ReadUInt16()) as Character;
if (senderCharacter != null)
{
senderName = senderCharacter.Name;
}
}
msg.ReadPadBits();
switch (type)
{
case ChatMessageType.Default:
break;
case ChatMessageType.Order:
int orderIndex = msg.ReadByte();
UInt16 targetCharacterID = msg.ReadUInt16();
Character targetCharacter = Entity.FindEntityByID(targetCharacterID) as Character;
Entity targetEntity = Entity.FindEntityByID(msg.ReadUInt16());
Order orderPrefab = null;
int? optionIndex = null;
string orderOption = null;
// The option of a Dismiss order is written differently so we know what order we target
// now that the game supports multiple current orders simultaneously
if (orderIndex >= 0 && orderIndex < Order.PrefabList.Count)
{
orderPrefab = Order.PrefabList[orderIndex];
if (orderPrefab.Identifier != "dismissed")
{
optionIndex = msg.ReadByte();
}
// Does the dismiss order have a specified target?
else if (msg.ReadBoolean())
{
int identifierCount = msg.ReadByte();
if (identifierCount > 0)
{
int dismissedOrderIndex = msg.ReadByte();
Order dismissedOrderPrefab = null;
if (dismissedOrderIndex >= 0 && dismissedOrderIndex < Order.PrefabList.Count)
{
dismissedOrderPrefab = Order.PrefabList[dismissedOrderIndex];
orderOption = dismissedOrderPrefab.Identifier;
}
if (identifierCount > 1)
{
int dismissedOrderOptionIndex = msg.ReadByte();
if (dismissedOrderPrefab != null)
{
var options = dismissedOrderPrefab.Options;
if (options != null && dismissedOrderOptionIndex >= 0 && dismissedOrderOptionIndex < options.Length)
{
orderOption += $".{options[dismissedOrderOptionIndex]}";
}
}
}
}
}
}
else
{
optionIndex = msg.ReadByte();
}
int orderPriority = msg.ReadByte();
OrderTarget orderTargetPosition = null;
Order.OrderTargetType orderTargetType = (Order.OrderTargetType)msg.ReadByte();
int wallSectionIndex = 0;
if (msg.ReadBoolean())
{
var x = msg.ReadSingle();
var y = msg.ReadSingle();
var hull = Entity.FindEntityByID(msg.ReadUInt16()) as Hull;
orderTargetPosition = new OrderTarget(new Vector2(x, y), hull, creatingFromExistingData: true);
}
else if (orderTargetType == Order.OrderTargetType.WallSection)
{
wallSectionIndex = msg.ReadByte();
}
if (orderIndex < 0 || orderIndex >= Order.PrefabList.Count)
{
DebugConsole.ThrowError("Invalid order message - order index out of bounds.");
if (NetIdUtils.IdMoreRecent(id, LastID))
{
LastID = id;
}
return;
}
else
{
orderPrefab ??= Order.PrefabList[orderIndex];
}
orderOption ??= optionIndex.HasValue && optionIndex >= 0 && optionIndex < orderPrefab.Options.Length ? orderPrefab.Options[optionIndex.Value] : "";
txt = orderPrefab.GetChatMessage(targetCharacter?.Name, senderCharacter?.CurrentHull?.DisplayName, givingOrderToSelf: targetCharacter == senderCharacter, orderOption: orderOption);
if (GameMain.Client.GameStarted && Screen.Selected == GameMain.GameScreen)
{
Order order = null;
switch (orderTargetType)
{
case Order.OrderTargetType.Entity:
order = new Order(orderPrefab, targetEntity, orderPrefab.GetTargetItemComponent(targetEntity as Item), orderGiver: senderCharacter);
break;
case Order.OrderTargetType.Position:
order = new Order(orderPrefab, orderTargetPosition, orderGiver: senderCharacter);
break;
case Order.OrderTargetType.WallSection:
order = new Order(orderPrefab, targetEntity as Structure, wallSectionIndex, orderGiver: senderCharacter);
break;
}
if (order != null)
{
if (order.TargetAllCharacters)
{
var fadeOutTime = !orderPrefab.IsIgnoreOrder ? (float?)orderPrefab.FadeOutTime : null;
GameMain.GameSession?.CrewManager?.AddOrder(order, fadeOutTime);
}
else if (targetCharacter != null)
{
targetCharacter.SetOrder(order, orderOption, orderPriority, senderCharacter);
}
}
}
if (NetIdUtils.IdMoreRecent(id, LastID))
{
GameMain.Client.AddChatMessage(
new OrderChatMessage(orderPrefab, orderOption, orderPriority, txt, orderTargetPosition ?? targetEntity as ISpatialEntity, targetCharacter, senderCharacter));
LastID = id;
}
return;
case ChatMessageType.ServerMessageBox:
txt = TextManager.GetServerMessage(txt);
break;
case ChatMessageType.ServerMessageBoxInGame:
styleSetting = msg.ReadString();
txt = TextManager.GetServerMessage(txt);
break;
}
if (NetIdUtils.IdMoreRecent(id, LastID))
{
switch (type)
{
case ChatMessageType.MessageBox:
case ChatMessageType.ServerMessageBox:
//only show the message box if the text differs from the text in the currently visible box
if ((GUIMessageBox.VisibleBox as GUIMessageBox)?.Text?.Text != txt)
{
new GUIMessageBox("", txt);
}
break;
case ChatMessageType.ServerMessageBoxInGame:
new GUIMessageBox("", txt, new string[0], type: GUIMessageBox.Type.InGame, iconStyle: styleSetting);
break;
case ChatMessageType.Console:
DebugConsole.NewMessage(txt, MessageColor[(int)ChatMessageType.Console]);
break;
case ChatMessageType.ServerLog:
if (!Enum.TryParse(senderName, out ServerLog.MessageType messageType))
{
return;
}
GameMain.Client.ServerSettings.ServerLog?.WriteLine(txt, messageType);
break;
default:
GameMain.Client.AddChatMessage(txt, type, senderName, senderClient, senderCharacter, changeType);
break;
}
LastID = id;
}
}
private void HandleDataMessage(IReadMessage inc)
{
if (!started)
{
return;
}
UInt64 senderSteamId = inc.ReadUInt64();
byte incByte = inc.ReadByte();
bool isCompressed = (incByte & (byte)PacketHeader.IsCompressed) != 0;
bool isConnectionInitializationStep = (incByte & (byte)PacketHeader.IsConnectionInitializationStep) != 0;
bool isDisconnectMessage = (incByte & (byte)PacketHeader.IsDisconnectMessage) != 0;
bool isServerMessage = (incByte & (byte)PacketHeader.IsServerMessage) != 0;
bool isHeartbeatMessage = (incByte & (byte)PacketHeader.IsHeartbeatMessage) != 0;
if (isServerMessage)
{
DebugConsole.ThrowError("Got server message from" + senderSteamId.ToString());
return;
}
if (senderSteamId != OwnerSteamID) //sender is remote, handle disconnects and heartbeats
{
PendingClient pendingClient = pendingClients.Find(c => c.SteamID == senderSteamId);
SteamP2PConnection connectedClient = connectedClients.Find(c => c.SteamID == senderSteamId);
pendingClient?.Heartbeat();
connectedClient?.Heartbeat();
if (serverSettings.BanList.IsBanned(senderSteamId, out string banReason))
{
if (pendingClient != null)
{
RemovePendingClient(pendingClient, DisconnectReason.Banned, banReason);
}
else if (connectedClient != null)
{
Disconnect(connectedClient, DisconnectReason.Banned.ToString() + "/ " + banReason);
}
return;
}
else if (isDisconnectMessage)
{
if (pendingClient != null)
{
string disconnectMsg = $"ServerMessage.HasDisconnected~[client]={pendingClient.Name}";
RemovePendingClient(pendingClient, DisconnectReason.Unknown, disconnectMsg);
}
else if (connectedClient != null)
{
string disconnectMsg = $"ServerMessage.HasDisconnected~[client]={connectedClient.Name}";
Disconnect(connectedClient, disconnectMsg, false);
}
return;
}
else if (isHeartbeatMessage)
{
//message exists solely as a heartbeat, ignore its contents
return;
}
else if (isConnectionInitializationStep)
{
if (pendingClient != null)
{
ReadConnectionInitializationStep(pendingClient, new ReadOnlyMessage(inc.Buffer, false, inc.BytePosition, inc.LengthBytes - inc.BytePosition, null));
}
else
{
ConnectionInitialization initializationStep = (ConnectionInitialization)inc.ReadByte();
if (initializationStep == ConnectionInitialization.ConnectionStarted)
{
pendingClients.Add(new PendingClient(senderSteamId));
}
}
}
else if (connectedClient != null)
{
UInt16 length = inc.ReadUInt16();
IReadMessage msg = new ReadOnlyMessage(inc.Buffer, isCompressed, inc.BytePosition, length, connectedClient);
OnMessageReceived?.Invoke(connectedClient, msg);
}
}
else //sender is owner
{
if (OwnerConnection != null)
{
(OwnerConnection as SteamP2PConnection).Heartbeat();
}
if (isDisconnectMessage)
{
DebugConsole.ThrowError("Received disconnect message from owner");
return;
}
if (isServerMessage)
{
DebugConsole.ThrowError("Received server message from owner");
return;
}
if (isConnectionInitializationStep)
{
if (OwnerConnection == null)
{
string ownerName = inc.ReadString();
OwnerConnection = new SteamP2PConnection(ownerName, OwnerSteamID)
{
Status = NetworkConnectionStatus.Connected
};
OnInitializationComplete?.Invoke(OwnerConnection);
}
return;
}
if (isHeartbeatMessage)
{
return;
}
else
{
UInt16 length = inc.ReadUInt16();
IReadMessage msg = new ReadOnlyMessage(inc.Buffer, isCompressed, inc.BytePosition, length, OwnerConnection);
OnMessageReceived?.Invoke(OwnerConnection, msg);
}
}
}
private void HandleDataMessage(IReadMessage inc)
{
if (!isActive)
{
return;
}
UInt64 recipientSteamId = inc.ReadUInt64();
DeliveryMethod deliveryMethod = (DeliveryMethod)inc.ReadByte();
int p2pDataStart = inc.BytePosition;
byte incByte = inc.ReadByte();
bool isCompressed = (incByte & (byte)PacketHeader.IsCompressed) != 0;
bool isConnectionInitializationStep = (incByte & (byte)PacketHeader.IsConnectionInitializationStep) != 0;
bool isDisconnectMessage = (incByte & (byte)PacketHeader.IsDisconnectMessage) != 0;
bool isServerMessage = (incByte & (byte)PacketHeader.IsServerMessage) != 0;
bool isHeartbeatMessage = (incByte & (byte)PacketHeader.IsHeartbeatMessage) != 0;
if (recipientSteamId != selfSteamID)
{
if (!isServerMessage)
{
DebugConsole.ThrowError("Received non-server message meant for remote peer");
return;
}
RemotePeer peer = remotePeers.Find(p => p.SteamID == recipientSteamId);
if (peer == null)
{
return;
}
if (isDisconnectMessage)
{
DisconnectPeer(peer, inc.ReadString());
return;
}
Steamworks.P2PSend sendType;
switch (deliveryMethod)
{
case DeliveryMethod.Reliable:
case DeliveryMethod.ReliableOrdered:
//the documentation seems to suggest that the Reliable send type
//enforces packet order (TODO: verify)
sendType = Steamworks.P2PSend.Reliable;
break;
default:
sendType = Steamworks.P2PSend.Unreliable;
break;
}
byte[] p2pData;
if (isConnectionInitializationStep)
{
p2pData = new byte[inc.LengthBytes - p2pDataStart + 8];
p2pData[0] = inc.Buffer[p2pDataStart];
Lidgren.Network.NetBitWriter.WriteUInt64(SteamManager.CurrentLobbyID, 64, p2pData, 8);
Array.Copy(inc.Buffer, p2pDataStart + 1, p2pData, 9, inc.LengthBytes - p2pDataStart - 1);
}
else
{
p2pData = new byte[inc.LengthBytes - p2pDataStart];
Array.Copy(inc.Buffer, p2pDataStart, p2pData, 0, p2pData.Length);
}
if (p2pData.Length + 4 >= MsgConstants.MTU)
{
DebugConsole.Log("WARNING: message length comes close to exceeding MTU, forcing reliable send (" + p2pData.Length.ToString() + " bytes)");
sendType = Steamworks.P2PSend.Reliable;
}
bool successSend = Steamworks.SteamNetworking.SendP2PPacket(recipientSteamId, p2pData, p2pData.Length, 0, sendType);
sentBytes += p2pData.Length;
if (!successSend)
{
if (sendType != Steamworks.P2PSend.Reliable)
{
DebugConsole.Log("WARNING: message couldn't be sent unreliably, forcing reliable send (" + p2pData.Length.ToString() + " bytes)");
sendType = Steamworks.P2PSend.Reliable;
successSend = Steamworks.SteamNetworking.SendP2PPacket(recipientSteamId, p2pData, p2pData.Length, 0, sendType);
sentBytes += p2pData.Length;
}
if (!successSend)
{
DebugConsole.ThrowError("Failed to send message to remote peer! (" + p2pData.Length.ToString() + " bytes)");
}
}
}
else
{
if (isDisconnectMessage)
{
DebugConsole.ThrowError("Received disconnect message from owned server");
return;
}
if (!isServerMessage)
{
DebugConsole.ThrowError("Received non-server message from owned server");
return;
}
if (isHeartbeatMessage)
{
return; //timeout is handled by Lidgren, ignore this message
}
if (isConnectionInitializationStep)
{
IWriteMessage outMsg = new WriteOnlyMessage();
outMsg.Write(selfSteamID);
outMsg.Write((byte)(PacketHeader.IsConnectionInitializationStep));
outMsg.Write(Name);
byte[] msgToSend = (byte[])outMsg.Buffer.Clone();
Array.Resize(ref msgToSend, outMsg.LengthBytes);
ChildServerRelay.Write(msgToSend);
return;
}
else
{
if (initializationStep != ConnectionInitialization.Success)
{
OnInitializationComplete?.Invoke();
initializationStep = ConnectionInitialization.Success;
}
UInt16 length = inc.ReadUInt16();
IReadMessage msg = new ReadOnlyMessage(inc.Buffer, isCompressed, inc.BytePosition, length, ServerConnection);
OnMessageReceived?.Invoke(msg);
return;
}
}
}
public static void ClientRead(IReadMessage msg)
{
UInt16 id = msg.ReadUInt16();
ChatMessageType type = (ChatMessageType)msg.ReadByte();
PlayerConnectionChangeType changeType = PlayerConnectionChangeType.None;
string txt = "";
string styleSetting = string.Empty;
if (type != ChatMessageType.Order)
{
changeType = (PlayerConnectionChangeType)msg.ReadByte();
txt = msg.ReadString();
}
string senderName = msg.ReadString();
Character senderCharacter = null;
Client senderClient = null;
bool hasSenderClient = msg.ReadBoolean();
if (hasSenderClient)
{
UInt64 clientId = msg.ReadUInt64();
senderClient = GameMain.Client.ConnectedClients.Find(c => c.SteamID == clientId || c.ID == clientId);
if (senderClient != null)
{
senderName = senderClient.Name;
}
}
bool hasSenderCharacter = msg.ReadBoolean();
if (hasSenderCharacter)
{
senderCharacter = Entity.FindEntityByID(msg.ReadUInt16()) as Character;
if (senderCharacter != null)
{
senderName = senderCharacter.Name;
}
}
msg.ReadPadBits();
switch (type)
{
case ChatMessageType.Default:
break;
case ChatMessageType.Order:
var orderMessageInfo = OrderChatMessage.ReadOrder(msg);
if (orderMessageInfo.OrderIndex < 0 || orderMessageInfo.OrderIndex >= Order.PrefabList.Count)
{
DebugConsole.ThrowError("Invalid order message - order index out of bounds.");
if (NetIdUtils.IdMoreRecent(id, LastID))
{
LastID = id;
}
return;
}
var orderPrefab = orderMessageInfo.OrderPrefab ?? Order.PrefabList[orderMessageInfo.OrderIndex];
string orderOption = orderMessageInfo.OrderOption;
orderOption ??= orderMessageInfo.OrderOptionIndex.HasValue && orderMessageInfo.OrderOptionIndex >= 0 && orderMessageInfo.OrderOptionIndex < orderPrefab.Options.Length ?
orderPrefab.Options[orderMessageInfo.OrderOptionIndex.Value] : "";
string targetRoom;
if (orderMessageInfo.TargetEntity is Hull targetHull)
{
targetRoom = targetHull.DisplayName;
}
else
{
targetRoom = senderCharacter?.CurrentHull?.DisplayName;
}
txt = orderPrefab.GetChatMessage(orderMessageInfo.TargetCharacter?.Name, targetRoom,
givingOrderToSelf: orderMessageInfo.TargetCharacter == senderCharacter,
orderOption: orderOption,
priority: orderMessageInfo.Priority);
if (GameMain.Client.GameStarted && Screen.Selected == GameMain.GameScreen)
{
Order order = null;
switch (orderMessageInfo.TargetType)
{
case Order.OrderTargetType.Entity:
order = new Order(orderPrefab, orderMessageInfo.TargetEntity, orderPrefab.GetTargetItemComponent(orderMessageInfo.TargetEntity as Item), orderGiver: senderCharacter);
break;
case Order.OrderTargetType.Position:
order = new Order(orderPrefab, orderMessageInfo.TargetPosition, orderGiver: senderCharacter);
break;
case Order.OrderTargetType.WallSection:
order = new Order(orderPrefab, orderMessageInfo.TargetEntity as Structure, orderMessageInfo.WallSectionIndex, orderGiver: senderCharacter);
break;
}
if (order != null)
{
if (order.TargetAllCharacters)
{
var fadeOutTime = !orderPrefab.IsIgnoreOrder ? (float?)orderPrefab.FadeOutTime : null;
GameMain.GameSession?.CrewManager?.AddOrder(order, fadeOutTime);
}
else
{
orderMessageInfo.TargetCharacter?.SetOrder(order, orderOption, orderMessageInfo.Priority, senderCharacter);
}
}
}
if (NetIdUtils.IdMoreRecent(id, LastID))
{
GameMain.Client.AddChatMessage(
new OrderChatMessage(orderPrefab, orderOption, orderMessageInfo.Priority, txt, orderMessageInfo.TargetPosition ?? orderMessageInfo.TargetEntity as ISpatialEntity, orderMessageInfo.TargetCharacter, senderCharacter));
LastID = id;
}
return;
case ChatMessageType.ServerMessageBox:
txt = TextManager.GetServerMessage(txt);
break;
case ChatMessageType.ServerMessageBoxInGame:
styleSetting = msg.ReadString();
txt = TextManager.GetServerMessage(txt);
break;
}
if (NetIdUtils.IdMoreRecent(id, LastID))
{
switch (type)
{
case ChatMessageType.MessageBox:
case ChatMessageType.ServerMessageBox:
//only show the message box if the text differs from the text in the currently visible box
if ((GUIMessageBox.VisibleBox as GUIMessageBox)?.Text?.Text != txt)
{
new GUIMessageBox("", txt);
}
break;
case ChatMessageType.ServerMessageBoxInGame:
new GUIMessageBox("", txt, new string[0], type: GUIMessageBox.Type.InGame, iconStyle: styleSetting);
break;
case ChatMessageType.Console:
DebugConsole.NewMessage(txt, MessageColor[(int)ChatMessageType.Console]);
break;
case ChatMessageType.ServerLog:
if (!Enum.TryParse(senderName, out ServerLog.MessageType messageType))
{
return;
}
GameMain.Client.ServerSettings.ServerLog?.WriteLine(txt, messageType);
break;
default:
GameMain.Client.AddChatMessage(txt, type, senderName, senderClient, senderCharacter, changeType);
break;
}
LastID = id;
}
}
protected void ReadConnectionInitializationStep(PendingClient pendingClient, IReadMessage inc)
{
pendingClient.TimeOut = NetworkConnection.TimeoutThreshold;
ConnectionInitialization initializationStep = (ConnectionInitialization)inc.ReadByte();
if (pendingClient.InitializationStep != initializationStep)
{
return;
}
pendingClient.UpdateTime = Timing.TotalTime + Timing.Step;
switch (initializationStep)
{
case ConnectionInitialization.SteamTicketAndVersion:
string name = Client.SanitizeName(inc.ReadString());
int ownerKey = inc.ReadInt32();
UInt64 steamId = inc.ReadUInt64();
UInt16 ticketLength = inc.ReadUInt16();
byte[] ticketBytes = inc.ReadBytes(ticketLength);
if (!Client.IsValidName(name, serverSettings))
{
RemovePendingClient(pendingClient, DisconnectReason.InvalidName, "");
return;
}
string version = inc.ReadString();
bool isCompatibleVersion = NetworkMember.IsCompatible(version, GameMain.Version.ToString()) ?? false;
if (!isCompatibleVersion)
{
RemovePendingClient(pendingClient, DisconnectReason.InvalidVersion,
$"DisconnectMessage.InvalidVersion~[version]={GameMain.Version}~[clientversion]={version}");
GameServer.Log(name + " (" + pendingClient.SteamID.ToString() + ") couldn't join the server (incompatible game version)", ServerLog.MessageType.Error);
DebugConsole.NewMessage(name + " (" + pendingClient.SteamID.ToString() + ") couldn't join the server (incompatible game version)", Microsoft.Xna.Framework.Color.Red);
return;
}
string language = inc.ReadString();
pendingClient.Connection.Language = language;
Client nameTaken = GameMain.Server.ConnectedClients.Find(c => Homoglyphs.Compare(c.Name.ToLower(), name.ToLower()));
if (nameTaken != null)
{
RemovePendingClient(pendingClient, DisconnectReason.NameTaken, "");
GameServer.Log(name + " (" + pendingClient.SteamID.ToString() + ") couldn't join the server (name too similar to the name of the client \"" + nameTaken.Name + "\").", ServerLog.MessageType.Error);
return;
}
if (!pendingClient.AuthSessionStarted)
{
ProcessAuthTicket(name, ownerKey, steamId, pendingClient, ticketBytes);
}
break;
case ConnectionInitialization.Password:
int pwLength = inc.ReadByte();
byte[] incPassword = inc.ReadBytes(pwLength);
if (pendingClient.PasswordSalt == null)
{
DebugConsole.ThrowError("Received password message from client without salt");
return;
}
if (serverSettings.IsPasswordCorrect(incPassword, pendingClient.PasswordSalt.Value))
{
pendingClient.InitializationStep = ConnectionInitialization.ContentPackageOrder;
}
else
{
pendingClient.Retries++;
if (serverSettings.BanAfterWrongPassword && pendingClient.Retries > serverSettings.MaxPasswordRetriesBeforeBan)
{
string banMsg = "Failed to enter correct password too many times";
BanPendingClient(pendingClient, banMsg, null);
RemovePendingClient(pendingClient, DisconnectReason.Banned, banMsg);
return;
}
}
pendingClient.UpdateTime = Timing.TotalTime;
break;
case ConnectionInitialization.ContentPackageOrder:
pendingClient.InitializationStep = ConnectionInitialization.Success;
pendingClient.UpdateTime = Timing.TotalTime;
break;
}
}
