/// <summary>
/// Ticks the VM one step.
/// Should be called once every loop.
/// </summary>
public void Tick()
{
foreach (VirtualThread Thread in m_Threads)
{
Thread.Tick();
}
m_TickCounter++;
if (m_TickCounter == 4)
{
//TODO: Change ID...
PacketStream SimulationStatePacket = new PacketStream(0x10, 0x00);
SimulationStatePacket.WriteByte(0x10); //TODO: Change ID
SimulationStatePacket.WriteByte((byte)m_TickCounter); //Number of ticks since last update.
SimulationStatePacket.WriteInt32(m_Threads.Count); //Number of objects in this VM.
BinaryFormatter BinFormatter = new BinaryFormatter();
foreach (VirtualThread VThread in m_Threads)
BinFormatter.Serialize(SimulationStatePacket, VThread);
//TODO: Compress packet...
NewSimulationStateEvent(SimulationStatePacket);
m_TickCounter = 0;
}
}
/// <summary>
/// Sends a CharacterCreate packet to a CityServer.
/// </summary>
/// <param name="LoginArgs">Arguments used to log onto the CityServer.</param>
/// <param name="Character">The character to create on the CityServer.</param>
public static void SendCharacterCreateCity(NetworkClient Client, UISim Character)
{
PacketStream Packet = new PacketStream((byte)PacketType.CHARACTER_CREATE_CITY, 0);
MemoryStream PacketData = new MemoryStream();
BinaryWriter Writer = new BinaryWriter(PacketData);
Writer.Write((byte)Client.ClientEncryptor.Username.Length);
Writer.Write(Encoding.ASCII.GetBytes(Client.ClientEncryptor.Username), 0,
Encoding.ASCII.GetBytes(Client.ClientEncryptor.Username).Length);
Writer.Write(PlayerAccount.CityToken);
Writer.Write(Character.Timestamp);
Writer.Write(Character.Name);
Writer.Write(Character.Sex);
Writer.Write(Character.Description);
Writer.Write((ulong)Character.HeadOutfitID);
Writer.Write((ulong)Character.BodyOutfitID);
Writer.Write((byte)Character.Avatar.Appearance);
Packet.WriteBytes(PacketData.ToArray());
Writer.Close();
Client.SendEncrypted((byte)PacketType.CHARACTER_CREATE_CITY, Packet.ToArray());
}
/// <summary>
/// Requests a token from the LoginServer, that can be used to log into a CityServer.
/// </summary>
/// <param name="Client">A NetworkClient instance.</param>
public static void RequestCityToken(NetworkClient Client, UISim SelectedCharacter)
{
PacketStream Packet = new PacketStream((byte)PacketType.REQUEST_CITY_TOKEN, 0);
Packet.WriteString(Client.ClientEncryptor.Username);
Packet.WriteString(SelectedCharacter.ResidingCity.UUID);
Packet.WriteString(SelectedCharacter.GUID.ToString());
Client.SendEncrypted((byte)PacketType.REQUEST_CITY_TOKEN, Packet.ToArray());
}
public static void ReceivedUnEncryptedPacket(NetworkClient Client, PacketStream Packet)
{
//NOTE: Normally, the client would only send its username, and that would be
// used to lookup the password from the database.
string Password = Packet.ReadPascalString();
Console.WriteLine("Received password from client: " + Password);
//TODO: Client should be passed by ref?
//ClientEncryptor must be initialized in order to decrypt encrypted messages!
Client.ClientEncryptor = new ARC4Encryptor(Password);
}
/// <summary>
/// A client requested login.
/// </summary>
/// <param name="Client">NetworkClient instance.</param>
/// <param name="Packet">ProcessedPacket instance.</param>
public static void InitialClientConnect(NetworkClient Client, ProcessedPacket Packet)
{
Console.WriteLine("Server receives data - test 1");
PacketStream EncryptedPacket = new PacketStream(0x02, 0);
EncryptedPacket.WriteHeader();
ClientPublicKey = Packet.ReadBytes((Packet.ReadByte()));
AESEncryptor Enc = (AESEncryptor)Client.ClientEncryptor;
Enc.NOnce = Packet.ReadBytes((Packet.ReadByte()));
Enc.PublicKey = ClientPublicKey;
Enc.PrivateKey = ServerPrivateKey;
Client.ClientEncryptor = Enc;
//THIS IS IMPORTANT - public key must be derived from private!
ServerPublicKey = ServerPrivateKey.PublicKey.ToByteArray();
ChallengeResponse = new byte[16];
m_Random.GetNonZeroBytes(ChallengeResponse);
MemoryStream StreamToEncrypt = new MemoryStream();
BinaryWriter Writer = new BinaryWriter(StreamToEncrypt);
Writer.Write(ChallengeResponse, 0, ChallengeResponse.Length);
Writer.Flush();
byte[] EncryptedData = StaticStaticDiffieHellman.Encrypt(ServerPrivateKey,
ECDiffieHellmanCngPublicKey.FromByteArray(ClientPublicKey, CngKeyBlobFormat.EccPublicBlob), Enc.NOnce,
StreamToEncrypt.ToArray());
EncryptedPacket.WriteUInt16((ushort)(PacketHeaders.UNENCRYPTED +
(1 + ServerPublicKey.Length) +
(1 + EncryptedData.Length)));
EncryptedPacket.WriteByte((byte)ServerPublicKey.Length);
EncryptedPacket.WriteBytes(ServerPublicKey);
EncryptedPacket.WriteByte((byte)EncryptedData.Length);
EncryptedPacket.WriteBytes(EncryptedData);
Client.Send(EncryptedPacket.ToArray());
NetworkFacade.Listener.UpdateClient(Client);
Console.WriteLine("Test 1: passed!");
}
//First packet sent from client to server.
public static void SendInitialConnectPacket(NetworkClient Client, string Username)
{
PacketStream InitialPacket = new PacketStream(0x01, 0);
InitialPacket.WriteHeader();
ECDiffieHellmanCng PrivateKey = Client.ClientEncryptor.GetDecryptionArgsContainer().AESDecryptArgs.PrivateKey;
//IMPORTANT: Public key must derive from the private key!
PacketHandlers.ClientPublicKey = PrivateKey.PublicKey.ToByteArray();
byte[] NOnce = Client.ClientEncryptor.GetDecryptionArgsContainer().AESDecryptArgs.NOnce;
InitialPacket.WriteUInt16((ushort)((byte)PacketHeaders.UNENCRYPTED +
(PacketHandlers.ClientPublicKey.Length + 1) + (NOnce.Length + 1)));
InitialPacket.WriteByte((byte)PacketHandlers.ClientPublicKey.Length);
InitialPacket.WriteBytes(PacketHandlers.ClientPublicKey);
InitialPacket.WriteByte((byte)NOnce.Length);
InitialPacket.WriteBytes(NOnce);
Client.Send(InitialPacket.ToArray());
}
/// <summary>
/// Sends a CharacterCreate packet to the LoginServer.
/// </summary>
/// <param name="Character">The character to create.</param>
/// <param name="TimeStamp">The timestamp of when this character was created.</param>
public static void SendCharacterCreate(UISim Character, string TimeStamp)
{
PacketStream Packet = new PacketStream((byte)PacketType.CHARACTER_CREATE, 0);
Packet.WriteString(NetworkFacade.Client.ClientEncryptor.Username);
Packet.WriteString(TimeStamp);
Packet.WriteString(Character.Name);
Packet.WriteString(Character.Sex);
Packet.WriteString(Character.Description);
Packet.WriteUInt64(Character.HeadOutfitID);
Packet.WriteUInt64(Character.BodyOutfitID);
Packet.WriteByte((byte)Character.Avatar.Appearance);
Packet.WriteString(Character.ResidingCity.Name);
Packet.WriteUInt64(Character.ResidingCity.Thumbnail);
Packet.WriteString(Character.ResidingCity.UUID);
Packet.WriteUInt64(Character.ResidingCity.Map);
Packet.WriteString(Character.ResidingCity.IP);
Packet.WriteInt32(Character.ResidingCity.Port);
byte[] PacketData = Packet.ToArray();
NetworkFacade.Client.SendEncrypted((byte)PacketType.CHARACTER_CREATE, PacketData);
}
/// <summary>
/// Sends a CharacterRetirement packet to the LoginServer, retiring a specific character.
/// </summary>
/// <param name="Character">The character to retire.</param>
public static void SendCharacterRetirement(UISim Character)
{
PacketStream Packet = new PacketStream((byte)PacketType.RETIRE_CHARACTER, 0);
Packet.WriteString(PlayerAccount.Username);
Packet.WriteString(Character.GUID.ToString());
NetworkFacade.Client.SendEncrypted((byte)PacketType.RETIRE_CHARACTER, Packet.ToArray());
}
private void SendState(VM vm)
{
if (ClientsToSync.Count == 0) return;
var state = vm.Save();
var cmd = new VMNetCommand(new VMStateSyncCmd { State = state });
//currently just hack this on the tick system. will change when we switch to not gonzonet
var ticks = new VMNetTickList { Ticks = new List<VMNetTick> {
new VMNetTick {
Commands = new List<VMNetCommand> { cmd },
RandomSeed = 0, //will be restored by client from cmd
TickID = TickID
}
} };
byte[] data;
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream))
{
ticks.SerializeInto(writer);
}
data = stream.ToArray();
}
using (var stream = new PacketStream((byte)PacketType.VM_PACKET, 0))
{
stream.WriteHeader();
stream.WriteInt32(data.Length + (int)PacketHeaders.UNENCRYPTED);
stream.WriteBytes(data);
var packet = stream.ToArray();
foreach (var client in ClientsToSync) client.Send(packet);
}
ClientsToSync.Clear();
}
protected virtual void ReceiveCallback(IAsyncResult AR)
{
try
{
Socket Sock = (Socket)AR.AsyncState;
int NumBytesRead = Sock.EndReceive(AR);
/** Cant do anything with this! **/
if (NumBytesRead == 0)
{
return;
}
byte[] TmpBuf = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuf, 0, NumBytesRead);
//The packet is given an ID of 0x00 because its ID is currently unknown.
PacketStream TempPacket = new PacketStream(0x00, (ushort)NumBytesRead, TmpBuf);
byte ID = TempPacket.PeekByte(0);
Logger.Log("Received packet: " + ID, LogLevel.info);
ushort PacketLength = 0;
var handler = FindPacketHandler(ID);
if (handler != null)
{
PacketLength = handler.Length;
Logger.Log("Found matching PacketID!\r\n\r\n", LogLevel.info);
if (NumBytesRead == PacketLength)
{
Logger.Log("Got packet - exact length!\r\n\r\n", LogLevel.info);
m_RecvBuf = new byte[11024];
OnPacket(new ProcessedPacket(ID, handler.Encrypted, handler.VariableLength, PacketLength,
ClientEncryptor, TempPacket.ToArray()), handler);
}
else if (NumBytesRead < PacketLength)
{
m_TempPacket = new PacketStream(ID, PacketLength);
byte[] TmpBuffer = new byte[NumBytesRead];
//Store the number of bytes that were read in the temporary buffer.
Logger.Log("Got data, but not a full packet - stored " +
NumBytesRead.ToString() + "bytes!\r\n\r\n", LogLevel.info);
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_TempPacket.WriteBytes(TmpBuffer);
//And reset the buffers!
m_RecvBuf = new byte[11024];
TmpBuffer = null;
}
else if (PacketLength == 0)
{
Logger.Log("Received variable length packet!\r\n", LogLevel.info);
if (NumBytesRead > (int)PacketHeaders.UNENCRYPTED) //Header is 3 bytes.
{
PacketLength = TempPacket.PeekUShort(1);
if (NumBytesRead == PacketLength)
{
Logger.Log("Received exact number of bytes for packet!\r\n",
LogLevel.info);
m_RecvBuf = new byte[11024];
m_TempPacket = null;
OnPacket(new ProcessedPacket(ID, handler.Encrypted, handler.VariableLength, PacketLength,
ClientEncryptor, TempPacket.ToArray()), handler);
}
else if (NumBytesRead < PacketLength)
{
Logger.Log("Didn't receive entire packet - stored: " + PacketLength + " bytes!\r\n",
LogLevel.info);
TempPacket.SetLength(PacketLength);
m_TempPacket = TempPacket;
m_RecvBuf = new byte[11024];
}
else if (NumBytesRead > PacketLength)
{
Logger.Log("Received more bytes than needed for packet. Excess: " +
(NumBytesRead - PacketLength) + "\r\n", LogLevel.info);
byte[] TmpBuffer = new byte[NumBytesRead - PacketLength];
Buffer.BlockCopy(TempPacket.ToArray(), 0, TmpBuffer, 0, TmpBuffer.Length);
m_TempPacket = new PacketStream(TmpBuffer[0], (ushort)(NumBytesRead - PacketLength),
TmpBuffer);
byte[] PacketBuffer = new byte[PacketLength];
Buffer.BlockCopy(TempPacket.ToArray(), 0, PacketBuffer, 0, PacketBuffer.Length);
m_RecvBuf = new byte[11024];
OnPacket(new ProcessedPacket(ID, handler.Encrypted, handler.VariableLength, PacketLength,
ClientEncryptor, PacketBuffer), handler);
}
}
}
}
else
{
if (m_TempPacket != null)
{
if (m_TempPacket.Length < m_TempPacket.BufferLength)
{
//Received the exact number of bytes needed to complete the stored packet.
if ((m_TempPacket.BufferLength + NumBytesRead) == m_TempPacket.Length)
{
byte[] TmpBuffer = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_RecvBuf = new byte[11024];
TmpBuffer = null;
}
//Received more than the number of bytes needed to complete the packet!
else if ((m_TempPacket.BufferLength + NumBytesRead) > m_TempPacket.Length)
{
ushort Target = (ushort)((m_TempPacket.BufferLength + NumBytesRead) - m_TempPacket.Length);
byte[] TmpBuffer = new byte[Target];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, Target);
m_TempPacket.WriteBytes(TmpBuffer);
//Now we have a full packet, so call the received event!
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, handler.Encrypted,
handler.VariableLength, (ushort)m_TempPacket.Length, ClientEncryptor, m_TempPacket.ToArray()), handler);
//Copy the remaining bytes in the receiving buffer.
TmpBuffer = new byte[NumBytesRead - Target];
Buffer.BlockCopy(m_RecvBuf, Target, TmpBuffer, 0, (NumBytesRead - Target));
//Give the temporary packet an ID of 0x00 since we don't know its ID yet.
TempPacket = new PacketStream(0x00, (ushort)(NumBytesRead - Target), TmpBuffer);
ID = TempPacket.PeekByte(0);
handler = FindPacketHandler(ID);
//This SHOULD be an existing ID, but let's sanity-check it...
if (handler != null)
{
m_TempPacket = new PacketStream(ID, handler.Length, TempPacket.ToArray());
//Congratulations, you just received another packet!
if (m_TempPacket.Length == m_TempPacket.BufferLength)
{
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, handler.Encrypted,
handler.VariableLength, (ushort)m_TempPacket.Length, ClientEncryptor,
m_TempPacket.ToArray()), handler);
//No more data to store on this read, so reset everything...
m_TempPacket = null;
TmpBuffer = null;
m_RecvBuf = new byte[11024];
}
}
else
{
//Houston, we have a problem (this should never occur)!
}
}
}
}
}
m_Sock.BeginReceive(m_RecvBuf, 0, m_RecvBuf.Length, SocketFlags.None,
new AsyncCallback(ReceiveCallback), m_Sock);
}
catch (SocketException)
{
Disconnect();
}
}
/// <summary>
/// Sends a request to purchase a lot.
/// </summary>
/// <param name="Client">NetworkClient instance connected to city server.</param>
/// <param name="X">X-coordinate of lot.</param>
/// <param name="Y">Y-coordinate of lot.</param>
public static void SendLotPurchaseRequest(NetworkClient Client, short X, short Y)
{
PacketStream Packet = new PacketStream((byte)PacketType.LOT_PURCHASE_REQUEST, 0);
Packet.WriteUInt16((ushort)X);
Packet.WriteUInt16((ushort)Y);
Client.SendEncrypted((byte)PacketType.LOT_PURCHASE_REQUEST, Packet.ToArray());
}
protected virtual void ReceiveCallback(IAsyncResult AR)
{
Socket Sock = (Socket)AR.AsyncState;
int NumBytesRead = 0;
try {
NumBytesRead = Sock.EndReceive(AR);
}
catch (SocketException)
{
Disconnect();
return;
}
if (NumBytesRead == 0)
{
Disconnect();
return;
}
byte[] TmpBuf = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuf, 0, NumBytesRead);
int Offset = 0;
while (Offset < NumBytesRead)
{
if (m_TempPacket == null)
{
byte ID = TmpBuf[Offset++];
PacketStream TempPacket = new PacketStream(ID, 0);
TempPacket.WriteByte(ID);
m_HeaderBuild = new List<byte>();
while (Offset < NumBytesRead && m_HeaderBuild.Count < 4)
{
m_HeaderBuild.Add(TmpBuf[Offset++]);
}
if (m_HeaderBuild.Count < 4)
{
m_TempPacket = TempPacket;
//length got fragmented.
} else
{
int Length = BitConverter.ToInt32(m_HeaderBuild.ToArray(), 0);
TempPacket.SetLength(Length);
TempPacket.WriteInt32(Length);
m_HeaderBuild = null;
byte[] TmpBuffer = new byte[Math.Min(NumBytesRead - Offset, TempPacket.Length-TempPacket.BufferLength)];
Buffer.BlockCopy(TmpBuf, Offset, TmpBuffer, 0, TmpBuffer.Length);
Offset += TmpBuffer.Length;
TempPacket.WriteBytes(TmpBuffer);
m_TempPacket = TempPacket;
}
}
else //fragmented, continue from last
{
if (m_HeaderBuild != null)
{
//we can safely assume that resuming from a fragmented length, it cannot get fragmented again.
while (m_HeaderBuild.Count < 4)
{
m_HeaderBuild.Add(TmpBuf[Offset++]);
}
int Length = BitConverter.ToInt32(m_HeaderBuild.ToArray(), 0);
m_TempPacket.SetLength(Length);
m_TempPacket.WriteInt32(Length);
m_HeaderBuild = null;
}
byte[] TmpBuffer = new byte[Math.Min(NumBytesRead - Offset, m_TempPacket.Length - m_TempPacket.BufferLength)];
Buffer.BlockCopy(TmpBuf, Offset, TmpBuffer, 0, TmpBuffer.Length);
Offset += TmpBuffer.Length;
m_TempPacket.WriteBytes(TmpBuffer);
}
if (m_TempPacket != null && m_TempPacket.BufferLength == m_TempPacket.Length)
{
var handler = FindPacketHandler(m_TempPacket.PacketID);
if (handler != null)
{
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, handler.Encrypted,
handler.VariableLength, (int)m_TempPacket.Length, m_ClientEncryptor, m_TempPacket.ToArray()), handler);
}
m_TempPacket = null;
}
}
try
{
m_Sock.BeginReceive(m_RecvBuf, 0, m_RecvBuf.Length, SocketFlags.None,
new AsyncCallback(ReceiveCallback), m_Sock);
}
catch (SocketException)
{
Disconnect();
return;
}
}
/// <summary>
/// LoginServer sent information about the player's characters.
/// </summary>
/// <param name="Packet">The packet that was received.</param>
public static void OnCharacterInfoResponse(ProcessedPacket Packet, NetworkClient Client)
{
byte NumCharacters = (byte)Packet.ReadByte();
byte NewCharacters = (byte)Packet.ReadByte();
List<UISim> FreshSims = new List<UISim>();
for (int i = 0; i < NewCharacters; i++)
{
int CharacterID = Packet.ReadInt32();
UISim FreshSim = new UISim(Packet.ReadString(), false);
FreshSim.CharacterID = CharacterID;
FreshSim.Timestamp = Packet.ReadString();
FreshSim.Name = Packet.ReadString();
FreshSim.Sex = Packet.ReadString();
FreshSim.Description = Packet.ReadString();
FreshSim.HeadOutfitID = Packet.ReadUInt64();
FreshSim.BodyOutfitID = Packet.ReadUInt64();
FreshSim.Avatar.Appearance = (AppearanceType)Packet.ReadByte();
FreshSim.ResidingCity = new CityInfo(false);
FreshSim.ResidingCity.Name = Packet.ReadString();
FreshSim.ResidingCity.Thumbnail = Packet.ReadUInt64();
FreshSim.ResidingCity.UUID = Packet.ReadString();
FreshSim.ResidingCity.Map = Packet.ReadUInt64();
FreshSim.ResidingCity.IP = Packet.ReadString();
FreshSim.ResidingCity.Port = Packet.ReadInt32();
FreshSims.Add(FreshSim);
}
lock (NetworkFacade.Avatars)
{
if ((NumCharacters < 3) && (NewCharacters > 0))
{
FreshSims = Cache.LoadCachedSims(FreshSims);
NetworkFacade.Avatars = FreshSims;
Cache.CacheSims(FreshSims);
}
if (NewCharacters == 0 && NumCharacters > 0)
NetworkFacade.Avatars = Cache.LoadAllSims();
else if (NewCharacters == 3 && NumCharacters == 3)
{
NetworkFacade.Avatars = FreshSims;
Cache.CacheSims(FreshSims);
}
else if (NewCharacters == 0 && NumCharacters == 0)
{
//Make sure if sims existed in the cache, they are deleted (because they didn't exist in DB).
Cache.DeleteCache();
}
else if (NumCharacters == 3 && NewCharacters == 3)
{
NetworkFacade.Avatars = FreshSims;
}
}
PacketStream CityInfoRequest = new PacketStream(0x06, 0);
CityInfoRequest.WriteByte(0x00); //Dummy
Client.SendEncrypted((byte)PacketType.CITY_LIST, CityInfoRequest.ToArray());
}
//uh, this is a little silly.
private void SendOneOff(NetworkClient client, VMNetTick tick)
{
var ticks = new VMNetTickList { Ticks = new List<VMNetTick>() { tick }, ImmediateMode = true };
byte[] data;
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream))
{
ticks.SerializeInto(writer);
}
data = stream.ToArray();
}
using (var stream = new PacketStream((byte)PacketType.VM_PACKET, 0))
{
stream.WriteHeader();
stream.WriteInt32(data.Length + (int)PacketHeaders.UNENCRYPTED);
stream.WriteBytes(data);
client.Send(stream.ToArray());
}
}
private void SendState(VM vm)
{
if (ClientsToSync.Count == 0) return;
//Console.WriteLine("== SERIAL: Sending State to Client... ==");
var watch = new Stopwatch();
watch.Start();
var state = vm.Save();
//Console.WriteLine("== STATE: Intermediate - after save... " + watch.ElapsedMilliseconds + " ms. ==");
var cmd = new VMNetCommand(new VMStateSyncCmd { State = state });
//currently just hack this on the tick system. will change when we switch to not gonzonet
var ticks = new VMNetTickList { Ticks = new List<VMNetTick> {
new VMNetTick {
Commands = new List<VMNetCommand> { cmd },
RandomSeed = 0, //will be restored by client from cmd
TickID = TickID
}
} };
byte[] data;
using (var stream = new MemoryStream())
{
//Console.WriteLine("== STATE: Intermediate - before serialize... " + watch.ElapsedMilliseconds + " ms. ==");
using (var writer = new BinaryWriter(stream))
{
ticks.SerializeInto(writer);
}
//Console.WriteLine("== STATE: Intermediate - before toArray... " + watch.ElapsedMilliseconds + " ms. ==");
data = stream.ToArray();
}
//Console.WriteLine("== STATE: Intermediate - before send... " + watch.ElapsedMilliseconds + " ms. ==");
byte[] packet;
using (var stream = new PacketStream((byte)PacketType.VM_PACKET, 0))
{
stream.WriteHeader();
stream.WriteInt32(data.Length + (int)PacketHeaders.UNENCRYPTED);
stream.WriteBytes(data);
packet = stream.ToArray();
}
foreach (var client in ClientsToSync) client.Send(packet);
ClientsToSync.Clear();
watch.Stop();
//Console.WriteLine("== SERIAL: DONE! State send took "+watch.ElapsedMilliseconds+" ms. ==");
}
public static void SendCharacterInfoRequest(string TimeStamp)
{
PacketStream Packet = new PacketStream((byte)PacketType.CHARACTER_LIST, 0);
//If this timestamp is newer than the server's timestamp, it means
//the client doesn't have a charactercache. If it's older, it means
//the cache needs to be updated. If it matches, the server sends an
//empty responsepacket.
//Packet.WriteString(TimeStamp);
Packet.WriteString(TimeStamp);
byte[] PacketData = Packet.ToArray();
NetworkFacade.Client.SendEncrypted((byte)PacketType.CHARACTER_LIST, PacketData);
}
protected virtual void ReceiveCallback(IAsyncResult AR)
{
Socket Sock = (Socket)AR.AsyncState;
int NumBytesRead = 0;
try {
NumBytesRead = Sock.EndReceive(AR);
}
catch (SocketException)
{
Disconnect();
return;
}
if (NumBytesRead == 0)
{
Disconnect();
return;
}
byte[] TmpBuf = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuf, 0, NumBytesRead);
int Offset = 0;
while (Offset < NumBytesRead)
{
if (m_TempPacket == null)
{
byte ID = TmpBuf[Offset++];
PacketStream TempPacket = new PacketStream(ID, 0);
TempPacket.WriteByte(ID);
m_HeaderBuild = new List <byte>();
while (Offset < NumBytesRead && m_HeaderBuild.Count < 4)
{
m_HeaderBuild.Add(TmpBuf[Offset++]);
}
if (m_HeaderBuild.Count < 4)
{
m_TempPacket = TempPacket;
//length got fragmented.
}
else
{
int Length = BitConverter.ToInt32(m_HeaderBuild.ToArray(), 0);
TempPacket.SetLength(Length);
TempPacket.WriteInt32(Length);
m_HeaderBuild = null;
byte[] TmpBuffer = new byte[Math.Min(NumBytesRead - Offset, TempPacket.Length - TempPacket.BufferLength)];
Buffer.BlockCopy(TmpBuf, Offset, TmpBuffer, 0, TmpBuffer.Length);
Offset += TmpBuffer.Length;
TempPacket.WriteBytes(TmpBuffer);
m_TempPacket = TempPacket;
}
}
else //fragmented, continue from last
{
if (m_HeaderBuild != null)
{
//we can safely assume that resuming from a fragmented length, it cannot get fragmented again.
while (m_HeaderBuild.Count < 4)
{
m_HeaderBuild.Add(TmpBuf[Offset++]);
}
int Length = BitConverter.ToInt32(m_HeaderBuild.ToArray(), 0);
m_TempPacket.SetLength(Length);
m_TempPacket.WriteInt32(Length);
m_HeaderBuild = null;
}
byte[] TmpBuffer = new byte[Math.Min(NumBytesRead - Offset, m_TempPacket.Length - m_TempPacket.BufferLength)];
Buffer.BlockCopy(TmpBuf, Offset, TmpBuffer, 0, TmpBuffer.Length);
Offset += TmpBuffer.Length;
m_TempPacket.WriteBytes(TmpBuffer);
}
if (m_TempPacket != null && m_TempPacket.BufferLength == m_TempPacket.Length)
{
var handler = FindPacketHandler(m_TempPacket.PacketID);
if (handler != null)
{
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, handler.Encrypted,
handler.VariableLength, (int)m_TempPacket.Length, m_ClientEncryptor, m_TempPacket.ToArray()), handler);
}
m_TempPacket = null;
}
}
try
{
m_Sock.BeginReceive(m_RecvBuf, 0, m_RecvBuf.Length, SocketFlags.None,
new AsyncCallback(ReceiveCallback), m_Sock);
}
catch (SocketException)
{
Disconnect();
return;
}
}
private void SendTickBuffer()
{
var ticks = new VMNetTickList { Ticks = TickBuffer };
byte[] data;
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream))
{
ticks.SerializeInto(writer);
}
data = stream.ToArray();
}
using (var stream = new PacketStream((byte)PacketType.VM_PACKET, 0))
{
stream.WriteHeader();
stream.WriteInt32(data.Length + (int)PacketHeaders.UNENCRYPTED);
stream.WriteBytes(data);
Broadcast(stream.ToArray(), ClientsToSync);
}
TickBuffer.Clear();
}
protected virtual void ReceiveCallback(IAsyncResult AR)
{
try
{
Socket Sock = (Socket)AR.AsyncState;
int NumBytesRead = Sock.EndReceive(AR);
/** Cant do anything with this! **/
if (NumBytesRead == 0) { return; }
byte[] TmpBuf = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuf, 0, NumBytesRead);
m_RecvBuf = new byte[11024]; //Clear, to make sure this buffer is always fresh.
if (m_TempPacket == null) //No temporary data was stored - beginning of new packet!
{
//The packet is given an ID of 0x00 because its ID is currently unknown.
PacketStream UnknownPacket = new PacketStream(0x00, (ushort)NumBytesRead, TmpBuf);
byte ID = UnknownPacket.PeekByte(0);
Logger.Log("Received packet: " + ID, LogLevel.info);
ushort PacketLength = 0;
m_Handler = FindPacketHandler(ID);
PacketLength = m_Handler.Length;
if (PacketLength == 0) //Variable length!
{
if (NumBytesRead >= (int)PacketHeaders.ENCRYPTED)
PacketLength = UnknownPacket.PeekUShort(1);
}
else
{
if (m_TempPacket == null)
m_TempPacket = new PacketStream(ID, PacketLength);
byte[] TmpBuffer = new byte[NumBytesRead];
//Store the number of bytes that were read in the temporary buffer.
Logger.Log("Got data, but not a full header - stored " +
NumBytesRead.ToString() + "bytes!\r\n\r\n", LogLevel.info);
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_TempPacket.WriteBytes(TmpBuffer);
TmpBuffer = null;
}
if (PacketLength != 0)
{
if (NumBytesRead == PacketLength)
{
Logger.Log("Got packet - exact length!\r\n\r\n", LogLevel.info);
OnPacket(new ProcessedPacket(ID, m_Handler.Encrypted, m_Handler.VariableLength, PacketLength,
m_ClientEncryptor, UnknownPacket.ToArray()), m_Handler);
}
else if (NumBytesRead < PacketLength)
{
if (m_TempPacket == null)
m_TempPacket = new PacketStream(ID, PacketLength);
byte[] TmpBuffer = new byte[NumBytesRead];
//Store the number of bytes that were read in the temporary buffer.
Logger.Log("Got data, but not a full packet - stored " +
NumBytesRead.ToString() + "bytes!\r\n\r\n", LogLevel.info);
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_TempPacket.WriteBytes(TmpBuffer);
TmpBuffer = null;
}
else if (NumBytesRead > PacketLength)
{
Logger.Log("Received more bytes than needed for packet. Excess: " +
(NumBytesRead - PacketLength) + "\r\n", LogLevel.info);
PacketHandler OldHandler = m_Handler;
byte[] PacketBuffer = new byte[PacketLength];
Buffer.BlockCopy(UnknownPacket.ToArray(), 0, PacketBuffer, 0, PacketBuffer.Length);
OnPacket(new ProcessedPacket(ID, OldHandler.Encrypted, OldHandler.VariableLength,
OldHandler.Length, m_ClientEncryptor, PacketBuffer), OldHandler);
byte[] TmpBuffer = new byte[NumBytesRead - PacketLength];
Buffer.BlockCopy(UnknownPacket.ToArray(), (NumBytesRead - PacketLength) - 1,
TmpBuffer, 0, TmpBuffer.Length);
m_TempPacket = new PacketStream(TmpBuffer[0], (ushort)(NumBytesRead - PacketLength),
TmpBuffer);
m_TempPacket.WriteBytes(TmpBuffer);
m_Handler = FindPacketHandler(ID);
PacketLength = m_Handler.Length;
if (PacketLength == 0) //Variable length!
{
if (m_TempPacket.BufferLength >= (int)PacketHeaders.ENCRYPTED)
{
PacketLength = UnknownPacket.PeekUShort(1);
m_TempPacket.SetLength(PacketLength);
}
}
TmpBuffer = null;
}
}
}
else
{
m_TempPacket.WriteBytes(TmpBuf);
if (m_TempPacket.Length == 0) //Variable length!
{
if (NumBytesRead >= (int)PacketHeaders.ENCRYPTED)
m_TempPacket.SetLength(m_TempPacket.PeekUShort(1));
else
{
byte[] TmpBuffer = new byte[NumBytesRead];
//Store the number of bytes that were read in the temporary buffer.
Logger.Log("Got data, but not a full header - stored " +
NumBytesRead.ToString() + "bytes!\r\n\r\n", LogLevel.info);
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_TempPacket.WriteBytes(TmpBuffer);
BeginReceive();
TmpBuffer = null;
}
}
if (m_TempPacket.BufferLength == m_TempPacket.Length)
{
Logger.Log("Got packet - exact length!\r\n\r\n", LogLevel.info);
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, m_Handler.Encrypted, m_Handler.VariableLength,
(ushort)m_TempPacket.Length, m_ClientEncryptor, m_TempPacket.ToArray()), m_Handler);
}
else if (m_TempPacket.BufferLength < m_TempPacket.Length)
{
byte[] TmpBuffer = new byte[NumBytesRead];
//Store the number of bytes that were read in the temporary buffer.
Logger.Log("Got data, but not a full packet - stored " +
NumBytesRead.ToString() + "bytes!\r\n\r\n", LogLevel.info);
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_TempPacket.WriteBytes(TmpBuffer);
TmpBuffer = null;
}
else if (m_TempPacket.BufferLength > m_TempPacket.Length)
{
Logger.Log("Received more bytes than needed for packet. Excess: " +
(m_TempPacket.BufferLength - m_TempPacket.Length) + "\r\n", LogLevel.info);
PacketHandler OldHandler = m_Handler;
byte[] PacketBuffer = new byte[m_TempPacket.Length];
Buffer.BlockCopy(m_TempPacket.ToArray(), 0, PacketBuffer, 0, PacketBuffer.Length);
OnPacket(new ProcessedPacket(OldHandler.ID, OldHandler.Encrypted, OldHandler.VariableLength,
OldHandler.Length, m_ClientEncryptor, PacketBuffer), OldHandler);
byte[] TmpBuffer = new byte[m_TempPacket.BufferLength - m_TempPacket.Length];
Buffer.BlockCopy(m_TempPacket.ToArray(), ((int)m_TempPacket.BufferLength - (int)m_TempPacket.Length),
TmpBuffer, 0, TmpBuffer.Length);
m_TempPacket = new PacketStream(TmpBuffer[0], (ushort)(m_TempPacket.BufferLength - m_TempPacket.Length),
TmpBuffer);
m_Handler = FindPacketHandler(m_TempPacket.PacketID);
ushort PacketLength = m_Handler.Length;
if (PacketLength == 0) //Variable length!
{
if (m_TempPacket.BufferLength >= (int)PacketHeaders.ENCRYPTED)
{
PacketLength = m_TempPacket.PeekUShort(1);
m_TempPacket.SetLength(PacketLength);
}
}
}
}
m_Sock.BeginReceive(m_RecvBuf, 0, m_RecvBuf.Length, SocketFlags.None,
new AsyncCallback(ReceiveCallback), m_Sock);
}
catch (SocketException)
{
Disconnect();
}
}
/// <summary>
/// Sends a token to a CityServer, as received by a LoginServer.
/// </summary>
/// <param name="Client">A NetworkClient instance.</param>
public static void SendCityToken(NetworkClient Client)
{
PacketStream Packet = new PacketStream((byte)PacketType.CITY_TOKEN, 0);
MemoryStream PacketData = new MemoryStream();
BinaryWriter Writer = new BinaryWriter(PacketData);
Writer.Write(PlayerAccount.CityToken);
Packet.WriteBytes(PacketData.ToArray());
Writer.Close();
Client.SendEncrypted((byte)PacketType.CITY_TOKEN, Packet.ToArray());
}
public static void SendLetter(NetworkClient Client, string Msg, string Subject, string GUID)
{
PacketStream Packet = new PacketStream((byte)PacketType.PLAYER_SENT_LETTER, 0);
Packet.WriteString(GUID);
Packet.WriteString(Subject);
Packet.WriteString(Msg);
Client.SendEncrypted((byte)PacketType.PLAYER_SENT_LETTER, Packet.ToArray());
}
public static void SendLoginRequest(LoginArgsContainer Args)
{
PacketStream InitialPacket = new PacketStream((byte)PacketType.LOGIN_REQUEST, 0);
InitialPacket.WriteHeader();
//ECDiffieHellmanCng PrivateKey = Args.Client.ClientEncryptor.GetDecryptionArgsContainer()
// .AESDecryptArgs.PrivateKey;
//IMPORTANT: Public key must derive from the private key!
//byte[] ClientPublicKey = PrivateKey.PublicKey.ToByteArray();
byte[] NOnce = Args.Client.ClientEncryptor.GetDecryptionArgsContainer().AESDecryptArgs.NOnce;
//InitialPacket.WriteInt32(((byte)PacketHeaders.UNENCRYPTED +
// /*4 is for version*/ 4 + (ClientPublicKey.Length + 1) + (NOnce.Length + 1)));
SaltedHash Hash = new SaltedHash(new SHA512Managed(), Args.Username.Length);
byte[] HashBuf = Hash.ComputePasswordHash(Args.Username, Args.Password);
PlayerAccount.Hash = HashBuf;
string[] Version = GlobalSettings.Default.ClientVersion.Split('.');
InitialPacket.WriteByte((byte)int.Parse(Version[0])); //Version 1
InitialPacket.WriteByte((byte)int.Parse(Version[1])); //Version 2
InitialPacket.WriteByte((byte)int.Parse(Version[2])); //Version 3
InitialPacket.WriteByte((byte)int.Parse(Version[3])); //Version 4
//InitialPacket.WriteByte((byte)ClientPublicKey.Length);
//InitialPacket.WriteBytes(ClientPublicKey);
InitialPacket.WriteByte((byte)NOnce.Length);
InitialPacket.WriteBytes(NOnce);
Args.Client.Send(InitialPacket.ToArray());
}
protected virtual void ReceiveCallback(IAsyncResult AR)
{
try
{
Socket Sock = (Socket)AR.AsyncState;
int NumBytesRead = Sock.EndReceive(AR);
/** Cant do anything with this! **/
if (NumBytesRead == 0) { return; }
byte[] TmpBuf = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuf, 0, NumBytesRead);
//The packet is given an ID of 0x00 because its ID is currently unknown.
PacketStream TempPacket = new PacketStream(0x00, (ushort)NumBytesRead, TmpBuf);
byte ID = TempPacket.PeekByte(0);
Logger.Log("Received packet: " + ID, LogLevel.info);
ushort PacketLength = 0;
var handler = FindPacketHandler(ID);
if (handler != null)
{
PacketLength = handler.Length;
Logger.Log("Found matching PacketID!\r\n\r\n", LogLevel.info);
if (NumBytesRead == PacketLength)
{
Logger.Log("Got packet - exact length!\r\n\r\n", LogLevel.info);
m_RecvBuf = new byte[11024];
OnPacket(new ProcessedPacket(ID, handler.Encrypted, handler.VariableLength, PacketLength,
m_ClientEncryptor, TempPacket.ToArray()), handler);
}
else if (NumBytesRead < PacketLength)
{
m_TempPacket = new PacketStream(ID, PacketLength);
byte[] TmpBuffer = new byte[NumBytesRead];
//Store the number of bytes that were read in the temporary buffer.
Logger.Log("Got data, but not a full packet - stored " +
NumBytesRead.ToString() + "bytes!\r\n\r\n", LogLevel.info);
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_TempPacket.WriteBytes(TmpBuffer);
//And reset the buffers!
m_RecvBuf = new byte[11024];
TmpBuffer = null;
}
else if (PacketLength == 0)
{
Logger.Log("Received variable length packet!\r\n", LogLevel.info);
if (NumBytesRead > (int)PacketHeaders.UNENCRYPTED) //Header is 3 bytes.
{
PacketLength = TempPacket.PeekUShort(1);
if (NumBytesRead == PacketLength)
{
Logger.Log("Received exact number of bytes for packet!\r\n",
LogLevel.info);
m_RecvBuf = new byte[11024];
m_TempPacket = null;
OnPacket(new ProcessedPacket(ID, handler.Encrypted, handler.VariableLength, PacketLength,
m_ClientEncryptor, TempPacket.ToArray()), handler);
}
else if (NumBytesRead < PacketLength)
{
Logger.Log("Didn't receive entire packet - stored: " + PacketLength + " bytes!\r\n",
LogLevel.info);
TempPacket.SetLength(PacketLength);
m_TempPacket = TempPacket;
m_RecvBuf = new byte[11024];
}
else if (NumBytesRead > PacketLength)
{
Logger.Log("Received more bytes than needed for packet. Excess: " +
(NumBytesRead - PacketLength) + "\r\n", LogLevel.info);
byte[] TmpBuffer = new byte[NumBytesRead - PacketLength];
Buffer.BlockCopy(TempPacket.ToArray(), 0, TmpBuffer, 0, TmpBuffer.Length);
m_TempPacket = new PacketStream(TmpBuffer[0], (ushort)(NumBytesRead - PacketLength),
TmpBuffer);
byte[] PacketBuffer = new byte[PacketLength];
Buffer.BlockCopy(TempPacket.ToArray(), 0, PacketBuffer, 0, PacketBuffer.Length);
m_RecvBuf = new byte[11024];
OnPacket(new ProcessedPacket(ID, handler.Encrypted, handler.VariableLength, PacketLength,
m_ClientEncryptor, PacketBuffer), handler);
}
}
}
}
else
{
if (m_TempPacket != null)
{
if (m_TempPacket.Length < m_TempPacket.BufferLength)
{
//Received the exact number of bytes needed to complete the stored packet.
if ((m_TempPacket.BufferLength + NumBytesRead) == m_TempPacket.Length)
{
byte[] TmpBuffer = new byte[NumBytesRead];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, NumBytesRead);
m_RecvBuf = new byte[11024];
TmpBuffer = null;
}
//Received more than the number of bytes needed to complete the packet!
else if ((m_TempPacket.BufferLength + NumBytesRead) > m_TempPacket.Length)
{
ushort Target = (ushort)((m_TempPacket.BufferLength + NumBytesRead) - m_TempPacket.Length);
byte[] TmpBuffer = new byte[Target];
Buffer.BlockCopy(m_RecvBuf, 0, TmpBuffer, 0, Target);
m_TempPacket.WriteBytes(TmpBuffer);
//Now we have a full packet, so call the received event!
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, handler.Encrypted,
handler.VariableLength, (ushort)m_TempPacket.Length, m_ClientEncryptor, m_TempPacket.ToArray()), handler);
//Copy the remaining bytes in the receiving buffer.
TmpBuffer = new byte[NumBytesRead - Target];
Buffer.BlockCopy(m_RecvBuf, Target, TmpBuffer, 0, (NumBytesRead - Target));
//Give the temporary packet an ID of 0x00 since we don't know its ID yet.
TempPacket = new PacketStream(0x00, (ushort)(NumBytesRead - Target), TmpBuffer);
ID = TempPacket.PeekByte(0);
handler = FindPacketHandler(ID);
//This SHOULD be an existing ID, but let's sanity-check it...
if (handler != null)
{
m_TempPacket = new PacketStream(ID, handler.Length, TempPacket.ToArray());
//Congratulations, you just received another packet!
if (m_TempPacket.Length == m_TempPacket.BufferLength)
{
OnPacket(new ProcessedPacket(m_TempPacket.PacketID, handler.Encrypted,
handler.VariableLength, (ushort)m_TempPacket.Length, m_ClientEncryptor,
m_TempPacket.ToArray()), handler);
//No more data to store on this read, so reset everything...
m_TempPacket = null;
TmpBuffer = null;
m_RecvBuf = new byte[11024];
}
}
else
{
//Houston, we have a problem (this should never occur)!
this.Disconnect();
}
}
}
}
}
m_Sock.BeginReceive(m_RecvBuf, 0, m_RecvBuf.Length, SocketFlags.None,
new AsyncCallback(ReceiveCallback), m_Sock);
}
catch (SocketException)
{
Disconnect();
}
}
public static void SendLoginRequestCity(LoginArgsContainer Args)
{
PacketStream Packet = new PacketStream((byte)PacketType.LOGIN_REQUEST_CITY, 0);
Packet.WriteHeader();
//ECDiffieHellmanCng PrivateKey = Args.Client.ClientEncryptor.GetDecryptionArgsContainer()
// .AESDecryptArgs.PrivateKey;
//IMPORTANT: Public key must derive from the private key!
//byte[] ClientPublicKey = PrivateKey.PublicKey.ToByteArray();
byte[] NOnce = Args.Client.ClientEncryptor.GetDecryptionArgsContainer().AESDecryptArgs.NOnce;
//Packet.WriteInt32(((byte)PacketHeaders.UNENCRYPTED +
// (ClientPublicKey.Length + 1) + (NOnce.Length + 1)));
//Packet.WriteByte((byte)ClientPublicKey.Length);
//Packet.WriteBytes(ClientPublicKey);
Packet.WriteByte((byte)NOnce.Length);
Packet.WriteBytes(NOnce);
Args.Client.Send(Packet.ToArray());
}
private void SendToServer(VMNetCommandBodyAbstract cmd)
{
byte[] data;
using (var stream = new MemoryStream())
{
var cmd2 = new VMNetCommand(cmd);
using (var writer = new BinaryWriter(stream))
{
cmd2.SerializeInto(writer);
}
data = stream.ToArray();
}
using (var stream = new PacketStream((byte)PacketType.VM_PACKET, 0))
{
stream.WriteHeader();
stream.WriteInt32(data.Length + (int)PacketHeaders.UNENCRYPTED);
stream.WriteBytes(data);
Client.Send(stream.ToArray());
}
}
public static void ReceivedEncryptedPacket(NetworkClient Client, PacketStream Packet)
{
Console.WriteLine("Received encrypted message: " + Packet.ReadPascalString());
}
