public virtual bool Read(IReadMessage msg, bool discardData = false)
{
if (!CanReceive)
{
throw new Exception("Called Read on a VoipQueue not set up for receiving");
}
UInt16 incLatestBufferID = msg.ReadUInt16();
if ((firstRead || NetIdUtils.IdMoreRecent(incLatestBufferID, LatestBufferID)) && !discardData)
{
ForceLocal = msg.ReadBoolean(); msg.ReadPadBits();
firstRead = false;
for (int i = 0; i < BUFFER_COUNT; i++)
{
bufferLengths[i] = msg.ReadByte();
buffers[i] = msg.ReadBytes(bufferLengths[i]);
}
newestBufferInd = BUFFER_COUNT - 1;
LatestBufferID = incLatestBufferID;
LastReadTime = DateTime.Now;
return(true);
}
else
{
msg.ReadBoolean(); msg.ReadPadBits();
for (int i = 0; i < BUFFER_COUNT; i++)
{
byte len = msg.ReadByte();
msg.BitPosition += len * 8;
}
return(false);
}
}
public void ReadBytes(IReadMessage inc, int bytesToRead)
{
if (Received + bytesToRead > FileSize)
{
//strip out excess bytes
bytesToRead -= Received + bytesToRead - FileSize;
}
byte[] all = inc.ReadBytes(bytesToRead);
Received += all.Length;
WriteStream.Write(all, 0, all.Length);
int passed = Environment.TickCount - TimeStarted;
float psec = passed / 1000.0f;
if (GameSettings.VerboseLogging)
{
DebugConsole.Log("Received " + all.Length + " bytes of the file " + FileName + " (" + Received + "/" + FileSize + " received)");
}
BytesPerSecond = Received / psec;
Status = Received >= FileSize ? FileTransferStatus.Finished : FileTransferStatus.Receiving;
}
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;
}
}
/// <summary>
/// Read the events from the message, ignoring ones we've already received
/// </summary>
public void Read(IReadMessage msg, Client sender = null)
{
UInt16 firstEventID = msg.ReadUInt16();
int eventCount = msg.ReadByte();
for (int i = 0; i < eventCount; i++)
{
UInt16 thisEventID = (UInt16)(firstEventID + (UInt16)i);
UInt16 entityID = msg.ReadUInt16();
if (entityID == Entity.NullEntityID)
{
msg.ReadPadBits();
if (thisEventID == (UInt16)(sender.LastSentEntityEventID + 1))
{
sender.LastSentEntityEventID++;
}
continue;
}
int msgLength = (int)msg.ReadVariableUInt32();
IClientSerializable entity = Entity.FindEntityByID(entityID) as IClientSerializable;
//skip the event if we've already received it
if (thisEventID != (UInt16)(sender.LastSentEntityEventID + 1))
{
if (GameSettings.VerboseLogging)
{
DebugConsole.NewMessage("Received msg " + thisEventID + ", expecting " + sender.LastSentEntityEventID, Color.Red);
}
msg.BitPosition += msgLength * 8;
}
else if (entity == null)
{
//entity not found -> consider the even read and skip over it
//(can happen, for example, when a client uses a medical item repeatedly
//and creates an event for it before receiving the event about it being removed)
if (GameSettings.VerboseLogging)
{
DebugConsole.NewMessage(
"Received msg " + thisEventID + ", entity " + entityID + " not found",
Microsoft.Xna.Framework.Color.Orange);
}
sender.LastSentEntityEventID++;
msg.BitPosition += msgLength * 8;
}
else
{
if (GameSettings.VerboseLogging)
{
DebugConsole.NewMessage("Received msg " + thisEventID, Microsoft.Xna.Framework.Color.Green);
}
UInt16 characterStateID = msg.ReadUInt16();
ReadWriteMessage buffer = new ReadWriteMessage();
byte[] temp = msg.ReadBytes(msgLength - 2);
buffer.Write(temp, 0, msgLength - 2);
buffer.BitPosition = 0;
BufferEvent(new BufferedEvent(sender, sender.Character, characterStateID, entity, buffer));
sender.LastSentEntityEventID++;
}
msg.ReadPadBits();
}
}
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;
}
}
