public void SendToServer(OutMessage message)
{
if (message != serverOutMessage)
{
message.WriteInternalHead();
Xtea.Encrypt(message, xteaKey);
Adler.Generate(message, true);
message.WriteHead();
}
lock (serverSocket)
{
serverSocket.Send(message.Buffer, 0, message.Size, SocketFlags.None);
}
}
public void SendToClient(OutMessage message)
{
if (message != clientOutMessage)
{
message.WriteInternalHead();
Xtea.Encrypt(message, xteaKey);
Adler.Generate(message, true);
message.WriteHead();
}
lock (clientSocket)
{
pendingSend++;
clientSocket.Send(message.Buffer, 0, message.Size, SocketFlags.None);
pendingSend--;
}
}
private void ParseClientWorldMessage()
{
#if DEBUG_PROXY
Trace.WriteLine("[DEBUG] Proxy [ParseClientWorldMessage]");
#endif
serverOutMessage.Reset();
Array.Copy(clientInMessage.Buffer, serverOutMessage.Buffer, clientInMessage.Size);
serverOutMessage.Size = clientInMessage.Size;
clientInMessage.ReadPosition = 2;
if (Adler.Generate(clientInMessage) != clientInMessage.ReadChecksum())
{
throw new Exception("Wrong checksum.");
}
Xtea.Decrypt(clientInMessage, xteaKey);
clientInMessage.Size = clientInMessage.ReadInternalHead() + 8;
clientInMessage.ReadPosition = 8;
client.ProtocolWorld.ParseClientMessage(clientInMessage);
SendToServer(serverOutMessage);
}
private void ParseFirstClientMessage()
{
#if DEBUG_PROXY
Trace.WriteLine("[DEBUG] Proxy [ParseFirstClientMessage]");
#endif
clientInMessage.ReadPosition = 2;
clientInMessage.Encrypted = false;
if (Adler.Generate(clientInMessage) != clientInMessage.ReadUInt())
{
throw new Exception("Wrong checksum.");
}
byte protocolId = clientInMessage.ReadByte();
if (protocolId == 0x01) //Login
{
protocol = Protocol.Login;
ushort clientType = clientInMessage.ReadUShort();
ushort protocolVersion = clientInMessage.ReadUShort();
if (client.Version.Number >= ClientVersion.Version981.Number)
{
uint clientVersion = clientInMessage.ReadUInt();
}
uint datSignature = clientInMessage.ReadUInt();
uint sprSignature = clientInMessage.ReadUInt();
uint picSignature = clientInMessage.ReadUInt();
if (client.Version.Number >= ClientVersion.Version981.Number)
{
byte clientPreviewState = clientInMessage.ReadByte();
}
Rsa.OpenTibiaDecrypt(clientInMessage);
Array.Copy(clientInMessage.Buffer, serverOutMessage.Buffer, clientInMessage.Size);
serverOutMessage.Size = clientInMessage.Size;
serverOutMessage.WritePosition = clientInMessage.ReadPosition - 1; //the first byte is zero
xteaKey = new uint[4];
xteaKey[0] = clientInMessage.ReadUInt();
xteaKey[1] = clientInMessage.ReadUInt();
xteaKey[2] = clientInMessage.ReadUInt();
xteaKey[3] = clientInMessage.ReadUInt();
var acc = clientInMessage.ReadString(); //account name
var pass = clientInMessage.ReadString(); //password
if (client.IsOpenTibiaServer)
{
Rsa.OpenTibiaEncrypt(serverOutMessage);
}
else
{
Rsa.RealTibiaEncrypt(serverOutMessage);
}
Adler.Generate(serverOutMessage, true);
serverOutMessage.WriteHead();
serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
serverSocket.Connect(loginServers[0].Server, loginServers[0].Port);
serverSocket.Send(serverOutMessage.Buffer, 0, serverOutMessage.Size, SocketFlags.None);
serverInMessage.Reset();
serverSocket.BeginReceive(serverInMessage.Buffer, 0, 2, SocketFlags.None, ServerReceiveCallback, null);
}
else if (protocolId == 0x0A) //Game
{
protocol = Protocol.World;
ushort clientType = clientInMessage.ReadUShort();
ushort protocolVersion = clientInMessage.ReadUShort();
if (client.Version.Number >= ClientVersion.Version981.Number)
{
uint clientVersion = clientInMessage.ReadUInt();
byte clientPreviewState = clientInMessage.ReadByte();
}
Rsa.OpenTibiaDecrypt(clientInMessage);
Array.Copy(clientInMessage.Buffer, serverOutMessage.Buffer, clientInMessage.Size);
serverOutMessage.Size = clientInMessage.Size;
serverOutMessage.WritePosition = clientInMessage.ReadPosition - 1; //the first byte is zero
xteaKey = new uint[4];
xteaKey[0] = clientInMessage.ReadUInt();
xteaKey[1] = clientInMessage.ReadUInt();
xteaKey[2] = clientInMessage.ReadUInt();
xteaKey[3] = clientInMessage.ReadUInt();
clientInMessage.ReadByte();
var accountName = clientInMessage.ReadString();
var characterName = clientInMessage.ReadString();
var password = clientInMessage.ReadString();
if (client.IsOpenTibiaServer)
{
Rsa.OpenTibiaEncrypt(serverOutMessage);
}
else
{
Rsa.RealTibiaEncrypt(serverOutMessage);
}
Adler.Generate(serverOutMessage, true);
serverOutMessage.WriteHead();
serverSocket.Send(serverOutMessage.Buffer, 0, serverOutMessage.Size, SocketFlags.None);
}
else
{
throw new Exception("Invalid protocol " + protocolId.ToString("X2"));
}
}
private void ParseServerLoginMessage()
{
#if DEBUG_PROXY
Trace.WriteLine("[DEBUG] Proxy [ParseServerLoginMessage]");
#endif
serverInMessage.ReadPosition = 2;
if (Adler.Generate(serverInMessage) != serverInMessage.ReadChecksum())
{
throw new Exception("Wrong checksum.");
}
Xtea.Decrypt(serverInMessage, xteaKey);
serverInMessage.Size = serverInMessage.ReadInternalHead() + 8;
serverInMessage.ReadPosition = 8;
clientOutMessage.Reset();
Array.Copy(serverInMessage.Buffer, clientOutMessage.Buffer, serverInMessage.Size);
clientOutMessage.Size = serverInMessage.Size;
while (serverInMessage.ReadPosition < serverInMessage.Size)
{
byte cmd = serverInMessage.ReadByte();
switch (cmd)
{
case 0x0A: //Error message
var msg = serverInMessage.ReadString();
break;
case 0x0B: //For your information
serverInMessage.ReadString();
break;
case 0x14: //MOTD
serverInMessage.ReadString();
break;
case 0x1E: //Patching exe/dat/spr messages
case 0x1F:
case 0x20:
//DisconnectClient(0x0A, "A new client is avalible, please download it first!");
break;
case 0x28: //Select other login server
//selectedLoginServer = random.Next(0, loginServers.Length - 1);
break;
case 0x64: //character list
if (client.Version.Number <= ClientVersion.Version1011.Number)
{
int nChar = (int)serverInMessage.ReadByte();
charList = new CharacterLoginInfo[nChar];
for (int i = 0; i < nChar; i++)
{
charList[i].CharName = serverInMessage.ReadString();
charList[i].WorldName = serverInMessage.ReadString();
clientOutMessage.WriteAt(new byte[] { 127, 0, 0, 1 }, serverInMessage.ReadPosition);
charList[i].WorldIP = serverInMessage.ReadUInt();
clientOutMessage.WriteAt(BitConverter.GetBytes((ushort)worldClientPort), serverInMessage.ReadPosition);
charList[i].WorldPort = serverInMessage.ReadUShort();
if (client.Version.Number >= ClientVersion.Version981.Number)
{
serverInMessage.ReadByte(); //isPreviewWorld
}
}
if (client.Version.Number >= ClientVersion.Version1011.Number)
{
serverInMessage.ReadUShort(); //PremiumTime
}
}
else if (client.Version.Number >= ClientVersion.Version1012.Number)
{
clientOutMessage.WritePosition = serverInMessage.ReadPosition;
byte nWorlds = serverInMessage.ReadByte();
clientOutMessage.WriteByte(nWorlds);
WorldLoginInfo[] worldList = new WorldLoginInfo[nWorlds];
for (byte i = 0; i < nWorlds; i++)
{
worldList[i].ID = serverInMessage.ReadByte();
clientOutMessage.WriteByte(worldList[i].ID);
worldList[i].Name = serverInMessage.ReadString();
clientOutMessage.WriteString(worldList[i].Name);
worldList[i].Hostname = serverInMessage.ReadString();
clientOutMessage.WriteString("127.0.0.1");
worldList[i].Port = serverInMessage.ReadUShort();
clientOutMessage.WriteUShort((ushort)worldClientPort);
worldList[i].IsPreviewWorld = serverInMessage.ReadBool();
clientOutMessage.WriteByte(Convert.ToByte(worldList[i].IsPreviewWorld));
}
byte nChars = serverInMessage.ReadByte();
clientOutMessage.WriteByte(nChars);
charList = new CharacterLoginInfo[nChars];
for (byte j = 0; j < nChars; j++)
{
byte WorldID = serverInMessage.ReadByte();
clientOutMessage.WriteByte(WorldID);
charList[j].CharName = serverInMessage.ReadString();
clientOutMessage.WriteString(charList[j].CharName);
charList[j].WorldName = worldList[WorldID].Name;
charList[j].WorldIP = BitConverter.ToUInt32(Dns.GetHostAddresses(worldList[WorldID].Hostname)[0].GetAddressBytes(), 0);
charList[j].WorldPort = worldList[WorldID].Port;
charList[j].WorldIPString = worldList[WorldID].Hostname;
}
ushort PremiumTime = serverInMessage.ReadUShort();
clientOutMessage.WriteUShort(PremiumTime);
clientOutMessage.Size = clientOutMessage.WritePosition;
}
break;
default:
break;
}
}
clientOutMessage.WriteInternalHead();
Xtea.Encrypt(clientOutMessage, xteaKey);
Adler.Generate(clientOutMessage, true);
clientOutMessage.WriteHead();
SendToClient(clientOutMessage);
}
private void ParseServerLoginMessage()
{
#if DEBUG_PROXY
Trace.WriteLine("[DEBUG] Proxy [ParseServerLoginMessage]");
#endif
serverInMessage.ReadPosition = 2;
if (Adler.Generate(serverInMessage) != serverInMessage.ReadChecksum())
{
throw new Exception("Wrong checksum.");
}
Xtea.Decrypt(serverInMessage, xteaKey);
serverInMessage.Size = serverInMessage.ReadInternalHead() + 8;
serverInMessage.ReadPosition = 8;
clientOutMessage.Reset();
Array.Copy(serverInMessage.Buffer, clientOutMessage.Buffer, serverInMessage.Size);
clientOutMessage.Size = serverInMessage.Size;
while (serverInMessage.ReadPosition < serverInMessage.Size)
{
byte cmd = serverInMessage.ReadByte();
switch (cmd)
{
case 0x0A: //Error message
var msg = serverInMessage.ReadString();
break;
case 0x0B: //For your information
serverInMessage.ReadString();
break;
case 0x0C: //token succes
case 0x0D: //token error
serverInMessage.ReadByte();
break;
case 0x11: //update
serverInMessage.ReadString();
break;
case 0x14: //MOTD
serverInMessage.ReadString();
break;
case 0x1E: //Patching exe/dat/spr messages
case 0x1F:
case 0x20:
//DisconnectClient(0x0A, "A new client is avalible, please download it first!");
break;
case 0x28: //session key
serverInMessage.ReadString();
break;
case 0x64: //character list
if (client.Version.Number <= ClientVersion.Version1011.Number)
{
int nChar = (int)serverInMessage.ReadByte();
charList = new CharacterLoginInfo[nChar];
for (int i = 0; i < nChar; i++)
{
charList[i].CharName = serverInMessage.ReadString();
charList[i].WorldName = serverInMessage.ReadString();
clientOutMessage.WriteAt(new byte[] { 127, 0, 0, 1 }, serverInMessage.ReadPosition);
charList[i].WorldIP = serverInMessage.ReadUInt();
clientOutMessage.WriteAt(BitConverter.GetBytes((ushort)worldClientPort), serverInMessage.ReadPosition);
charList[i].WorldPort = serverInMessage.ReadUShort();
if (client.Version.Number >= ClientVersion.Version981.Number)
{
serverInMessage.ReadByte(); //isPreviewWorld
}
}
if (client.Version.Number >= ClientVersion.Version1011.Number)
{
serverInMessage.ReadUShort(); //PremiumTime
}
}
else if (client.Version.Number >= ClientVersion.Version1012.Number)
{
clientOutMessage.WritePosition = serverInMessage.ReadPosition;
byte nWorlds = serverInMessage.ReadByte();
clientOutMessage.WriteByte(nWorlds);
WorldLoginInfo[] worldList = new WorldLoginInfo[nWorlds];
for (byte i = 0; i < nWorlds; i++)
{
worldList[i].ID = serverInMessage.ReadByte();
clientOutMessage.WriteByte(worldList[i].ID);
worldList[i].Name = serverInMessage.ReadString();
clientOutMessage.WriteString(worldList[i].Name);
worldList[i].Hostname = serverInMessage.ReadString();
clientOutMessage.WriteString("127.0.0.1");
worldList[i].Port = serverInMessage.ReadUShort();
clientOutMessage.WriteUShort((ushort)worldClientPort);
worldList[i].IsPreviewWorld = serverInMessage.ReadBool();
clientOutMessage.WriteByte(Convert.ToByte(worldList[i].IsPreviewWorld));
}
byte nChars = serverInMessage.ReadByte();
clientOutMessage.WriteByte(nChars);
charList = new CharacterLoginInfo[nChars];
for (byte j = 0; j < nChars; j++)
{
byte WorldID = serverInMessage.ReadByte();
clientOutMessage.WriteByte(WorldID);
charList[j].CharName = serverInMessage.ReadString();
clientOutMessage.WriteString(charList[j].CharName);
charList[j].WorldName = worldList[WorldID].Name;
charList[j].WorldIP = BitConverter.ToUInt32(Dns.GetHostAddresses(worldList[WorldID].Hostname)[0].GetAddressBytes(), 0);
charList[j].WorldPort = worldList[WorldID].Port;
charList[j].WorldIPString = worldList[WorldID].Hostname;
}
/**
* Not very accurately named variables, but I'll settle for some pseudocode in case of futher implementations
*
* if version < 10.80:
* ushort PremiumTime
* else if version < 10.82
* bool isPremium
* uint PremiumTime (In seconds from epoch - don't quote me on this :D)
* else if version >= 10.82
* byte AccountStatus (0 = normal, 1 = frozen, 2 = suspended)
* bool isPremium
* uint PremiumTime
*/
ushort PremiumTime = serverInMessage.ReadUShort();
clientOutMessage.WriteUShort(PremiumTime);
if (client.Version.Number >= ClientVersion.Version1090.Number) // From 10.80 - but haven't added 10.80 support.
{
uint PremiumSeconds = serverInMessage.ReadUInt(); // Not sure about this name.
clientOutMessage.WriteUInt(PremiumSeconds);
}
clientOutMessage.Size = clientOutMessage.WritePosition;
}
break;
default:
break;
}
}
clientOutMessage.WriteInternalHead();
Xtea.Encrypt(clientOutMessage, xteaKey);
Adler.Generate(clientOutMessage, true);
clientOutMessage.WriteHead();
SendToClient(clientOutMessage);
}
private void ParseServerLoginMessage()
{
#if DEBUG_PROXY
Trace.WriteLine("[DEBUG] Proxy [ParseServerLoginMessage]");
#endif
serverInMessage.ReadPosition = 2;
if (Adler.Generate(serverInMessage) != serverInMessage.ReadChecksum())
{
throw new Exception("Wrong checksum.");
}
Xtea.Decrypt(serverInMessage, xteaKey);
serverInMessage.Size = serverInMessage.ReadInternalHead() + 8;
serverInMessage.ReadPosition = 8;
clientOutMessage.Reset();
Array.Copy(serverInMessage.Buffer, clientOutMessage.Buffer, serverInMessage.Size);
clientOutMessage.Size = serverInMessage.Size;
while (serverInMessage.ReadPosition < serverInMessage.Size)
{
byte cmd = serverInMessage.ReadByte();
switch (cmd)
{
case 0x0A: //Error message
var msg = serverInMessage.ReadString();
break;
case 0x0B: //For your information
serverInMessage.ReadString();
break;
case 0x14: //MOTD
serverInMessage.ReadString();
break;
case 0x1E: //Patching exe/dat/spr messages
case 0x1F:
case 0x20:
//DisconnectClient(0x0A, "A new client is avalible, please download it first!");
break;
case 0x28: //Select other login server
//selectedLoginServer = random.Next(0, loginServers.Length - 1);
break;
case 0x64: //character list
int nChar = (int)serverInMessage.ReadByte();
charList = new CharacterLoginInfo[nChar];
for (int i = 0; i < nChar; i++)
{
charList[i].CharName = serverInMessage.ReadString();
charList[i].WorldName = serverInMessage.ReadString();
clientOutMessage.WriteAt(new byte[] { 127, 0, 0, 1 }, serverInMessage.ReadPosition);
charList[i].WorldIP = serverInMessage.ReadUInt();
clientOutMessage.WriteAt(BitConverter.GetBytes((ushort)worldClientPort), serverInMessage.ReadPosition);
charList[i].WorldPort = serverInMessage.ReadUShort();
}
break;
default:
break;
}
}
clientOutMessage.WriteInternalHead();
Xtea.Encrypt(clientOutMessage, xteaKey);
Adler.Generate(clientOutMessage, true);
clientOutMessage.WriteHead();
SendToClient(clientOutMessage);
}
