public static byte[] Encrypt(byte[] toEncrypt, byte[] key, int keyOffset)
{
if (key.Length <= 0 || toEncrypt.Length <= 0)
{
return(new byte[0]);
}
byte[] Out = new byte[toEncrypt.Length];
//simple xor with key
for (int i = 0; i < toEncrypt.Length; i++)
{
//Out[i] = (byte)(toEncrypt[i] ^ key[i % (key.Length / keyElementLenght)]);
Out[i] = (byte)(toEncrypt[i] ^ key[keyOffset]);
}
//now xor with one char beafore
for (int i = toEncrypt.Length - 2; i > 0; i--)
{
Out[i] = (byte)(Out[i] ^ Out[i + 1]);
}
if (Program.DEBUG_Encrypt)
{
string tmp = LoginServer.ByteArrayToHex(Out);
Output.WriteLine("ENCODE WITH KEY: " + keyOffset.ToString() + " ENCODED: " + tmp);
}
return(Out);
}
private static void Init(Connection pConn, byte[] data)
{
UInt16 realL = BitConverter.ToUInt16(data, 0);
if (Program.DEBUG_recv_stage1 || Program.DEBUG_recv)
{
Output.WriteLine("Init packet recv");
}
if (pConn.client.Status != Client.STATUS.Connected)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Init - STATUS != CONNECTED, close connection");
}
pConn.Close();
return;
}
if (realL != 7424)//to get real length need to swap bytes
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Init - Wrong packet size, close connection");
}
pConn.Close();
return;
}
if (data[Program.receivePrefixLength + 0] != 0x01 || data[Program.receivePrefixLength + 4] != 0x00 || data[Program.receivePrefixLength + 9] != 0x54 || data[Program.receivePrefixLength + 14] != 0x01)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Init - Wrong packet data, close connection");
}
pConn.Close();
return;
}
int sKeyTmp = Program.rnd.Next(pConn.client.PrivateKey.Length);// random send key
if (sKeyTmp >= pConn.client.PrivateKey.Length)
{
sKeyTmp = 0;
}
int rKeyTmp = Program.rnd.Next(pConn.client.PrivateKey.Length);//random recv key
if (rKeyTmp >= pConn.client.PrivateKey.Length)
{
rKeyTmp = 0;
}
pConn.Send(new SendPacketHandlers.SendKey1(Program.mainKey, sKeyTmp, rKeyTmp));
pConn.client.SendKeyOffset = sKeyTmp;
pConn.client.RecvKeyOffset = rKeyTmp;
pConn.client.PrivateKey = Program.mainKey;
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Init KEY: " + LoginServer.ByteArrayToHex(pConn.client.PrivateKey) + " SEND KEY OFFSET: " + sKeyTmp.ToString() + " RECV KEY OFFSET: " + rKeyTmp.ToString());
}
pConn.client.Status = Client.STATUS.Login;
return;
}
//Create new user account
public static void NewLogin(Connection pConn, byte[] data)
{
int newID = -1;
if (pConn.client.Status != Client.STATUS.Login)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin - Error recv NewLogin beafore Init, close connection");
}
pConn.Close();
return;
}
if (Program.DEBUG_recv_stage1 || Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin Recv new login packet");
}
byte pwLength = data[Program.receivePrefixLength];
if (pwLength < 3) //if (pwLength != 8)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin NewLogin fail");
}
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.NOT_ALLOWED));
return;
}
byte[] tmpPW = new byte[pwLength];
Array.Copy(data, Program.receivePrefixLength + 1, tmpPW, 0, pwLength);
byte idLength = data[Program.receivePrefixLength + pwLength + 1];
if (idLength < 3 || idLength > 8)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin Login fail [1]");
}
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.NOT_ALLOWED));
return;
}
byte[] tmpID = new byte[idLength];
Array.Copy(data, Program.receivePrefixLength + pwLength + 2, tmpID, 0, idLength);
byte[] cryptID = Crypt.Aes.AES_Encrypt(tmpID, Encoding.ASCII.GetBytes(Program.aesKey), Encoding.ASCII.GetBytes(Program.aesSalt));
byte[] cryptPW = Crypt.Aes.AES_Encrypt(tmpPW, Encoding.ASCII.GetBytes(Program.aesKey), Encoding.ASCII.GetBytes(Program.aesSalt));
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin Recv Login: "******" PW: " + Encoding.ASCII.GetString(tmpPW));
}
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin Recv Crypted Login: "******" PW: " + LoginServer.ByteArrayToHex(cryptPW));
}
newID = Database.DB_Acces.NewLogin(cryptID, cryptPW);
if (newID == -3)
{
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.UNDEFINED));
return;
}
else if (newID == -2)//login currently exist can't make new one
{
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.NOT_ALLOWED));
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin User already exists!");
}
}
else//selected Login succesfull created. say client to reconnect and login with newly created login
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::NewLogin Succesfully inserted new User");
}
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.CONNECT_AGAIN));
pConn.Close();
}
}
public static void Login(Connection pConn, byte[] data)
{
byte[] tmpPW;
byte[] tmpID;
byte[] cryptID;
byte[] cryptPW;
byte idLength;
byte pwLength;
int userID = -1;
if (pConn.client.Status != Client.STATUS.Login)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login - Error recv login beafore Init, close connection");
}
pConn.Close();
return;
}
if (Program.DEBUG_recv_stage1 || Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Recv login packet");
}
pwLength = data[Program.receivePrefixLength];
if (pwLength < 3) //if (pwLength != 8)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Login fail");
}
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.NOT_ALLOWED));
pConn.client.NumberOfLoginTrys++;
if (pConn.client.NumberOfLoginTrys > 3)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Too many fail trys, close connection");
}
pConn.Close();
}
return;
}
tmpPW = new byte[pwLength];
Array.Copy(data, Program.receivePrefixLength + 1, tmpPW, 0, pwLength);
idLength = data[Program.receivePrefixLength + pwLength + 1];
if (idLength < 3 || idLength > 8)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Login fail [1]");
}
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.NOT_ALLOWED));
pConn.client.NumberOfLoginTrys++;
if (pConn.client.NumberOfLoginTrys > 3)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Too many fail trys, close connection");
}
pConn.Close();
}
return;
}
tmpID = new byte[idLength];
Array.Copy(data, Program.receivePrefixLength + pwLength + 2, tmpID, 0, idLength);
cryptID = Crypt.Aes.AES_Encrypt(tmpID, Encoding.ASCII.GetBytes(Program.aesKey), Encoding.ASCII.GetBytes(Program.aesSalt));
cryptPW = Crypt.Aes.AES_Encrypt(tmpPW, Encoding.ASCII.GetBytes(Program.aesKey), Encoding.ASCII.GetBytes(Program.aesSalt));
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Recv Login: "******" PW: " + Encoding.ASCII.GetString(tmpPW));
}
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Recv Crypted Login: "******" PW: " + LoginServer.ByteArrayToHex(cryptPW));
}
userID = Database.DB_Acces.Login(cryptID, cryptPW);
if (userID < 0)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Login fail [2] Error: " + userID.ToString());
}
pConn.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.WRONGID));
pConn.client.NumberOfLoginTrys++;
if (pConn.client.NumberOfLoginTrys > 3)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Too many fail trys, close connection");
}
pConn.Close();
}
}
else
{// LOGIN IS OK
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Login is OK UserID: " + userID.ToString());
}
if (Users.Exists(userID))//User currently loged in...
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login User already LOGED IN!");
}
Connection tmpCon;
Users.Remove(userID, out tmpCon);
if (tmpCon != null)
{
tmpCon.Send(new SendPacketHandlers.LoginError(SendPacketHandlers.LOGIN_ERROR.CURRENTLY_LOGGED));
tmpCon.Close();
}
}
if (InGameUsers.Exists(userID))
{
//send to correct GameServer info about user log in -> game server will close corensponding connection
//next we should recv from game server info about closed connection and then we remove userID from InGameUsers list
//but for now we allow user to continue
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login UserID: " + userID.ToString() + " already IN GAME!");
}
}
pConn.client.UserID = userID;
if (!Users.Add(userID, pConn))// add this new succesfull login to the loged user list
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Error trying add new user");
}
pConn.Close();
}
List <Database.Player> lPlayers = Database.DB_Acces.PlayerList(userID);
pConn.client.AddPlayer(lPlayers);
pConn.Send(new SendPacketHandlers.BeginPlayerList(userID));
foreach (Database.Player row in lPlayers)
{
if (Program.DEBUG_recv)
{
Output.WriteLine("RecvPacketHandlers::Login Found in DB player character name: " + row.PlayerName);
}
MemoryStream stream = new MemoryStream();
BinaryWriter streamWriter = new BinaryWriter(stream);
streamWriter.Write((int)row.PlayerPID);
streamWriter.Write((string)row.PlayerName);
streamWriter.Write((int)row.Strength);
streamWriter.Write((int)row.Health);
streamWriter.Write((int)row.Intel);
streamWriter.Write((int)row.Wisdom);
streamWriter.Write((int)row.Agility);
streamWriter.Write((int)row.PosX);
streamWriter.Write((int)row.PosY);
streamWriter.Write((int)row.PosZ);
streamWriter.Write((int)row.Race);
streamWriter.Write((int)row.Job);
streamWriter.Write((int)row.Level);
streamWriter.Write((int)row.FaceType);
streamWriter.Write((int)row.HairType);
streamWriter.Write((int)row.Experience);
streamWriter.Write((int)row.ActHealth);
streamWriter.Write((int)row.ActMana);
streamWriter.Write((int)row.ActRage);
streamWriter.Write((int)row.HeadArmor);
streamWriter.Write((int)row.GlovesArmor);
streamWriter.Write((int)row.ChestArmor);
streamWriter.Write((int)row.ShortsArmor);
streamWriter.Write((int)row.BootsArmor);
streamWriter.Write((int)row.LeftHand);
streamWriter.Write((int)row.RightHand);
pConn.Send(new SendPacketHandlers.Player(stream.ToArray()));
}
pConn.Send(new SendPacketHandlers.EndPlayerList());
pConn.client.Status = Client.STATUS.CharSelect;
}
}
