/*
* Unknown_7D6 Packet
* -------------------------
* Client2Server Structure:
*
* ushort : magic code
* ushort : size
* int : padding
* ushort : opcode
*
* int : unk1
* byte[] : encrypted data #array size depends on RSA keylength, see PublicKey packet
* -------------------------
* Server2Client Structure:
*
* ushort : magic code
* ushort : size
* ushort : opcode
*
* int : unk1 #is set to 1 upon successful login; otherwise 0
* int : unk2
* byte : unk3
* int : status #account status
* -------------------------
* If login was successful, server sends another Unknown_7D6 packet:
* Server2Client Structure:
*
* ushort : magic code
* ushort : size
* ushort : opcode
*
* int : unk1 #is set to 1 upon successful login; otherwise 0
* int : unk2
* byte : unk3
* int : status #account status
* int : unk4
* byte : unk5
* int : unk6
* long : unk7
* byte : unk8
* int : unk9
* byte : unk10
* int : unk11
* int : unk12
* int : unk13
* char[32] : auth key #possibly used for cash shop
* short : unk14
* byte : server count
*
* foreach server
* byte : server id
* byte : character count
*
* byte[] : unk15 #array length is 248
*/
#endregion
public static void Unknown_7D6(PacketReader packet, PacketBuilder builder, ClientHandler client, EventHandler events)
{
packet.Skip(4);
var rsa = client.Metadata["rsa"] as RSA;
if (rsa == null)
{
Log.Error("Unable to decrypt RSA data!");
client.Disconnect();
client = null;
return;
}
byte[] encrypted = packet.ReadBytes(rsa.KeyLength / 8); // keylength is in bits
byte[] details = rsa.Decrypt(encrypted);
byte[] tmpdata = new byte[16];
if (details == null)
{
Log.Error("Unable to decrypt RSA data!");
client.Disconnect();
client = null;
return;
}
Array.Copy(details, tmpdata, 16);
string name = Encoding.UTF8.GetString(tmpdata).Trim('\0');
Array.Copy(details, 65, tmpdata, 0, 16);
string pass = Encoding.UTF8.GetString(tmpdata).Trim('\0');
Log.Notice("Login authentication: " + name);
string ip = client.RemoteEndPoint.ToString().Split(':')[0];
var syncServer = client.Metadata["syncServer"] as SyncReceiver;
var data = Authentication.FetchAccount(syncServer, name, pass);
bool kick = false;
if (data == null || data.id == -1)
{
builder.New(0x7D6);
{
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.OutOfService;
}
events.FailedLogin("login.AuthAccount", new LoginEventArgs(name, pass, ip, LoginResult.OutOfService));
client.Send(builder, "Unknown_7D6");
return;
}
builder.New(0x7D6);
{
switch (data.status)
{
case AuthStatus.Unverified:
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Unverified;
break;
case AuthStatus.Banned:
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Banned;
break;
case AuthStatus.IncorrectName:
case AuthStatus.IncorrectPass:
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Incorrect;
var tmp = data.status == AuthStatus.IncorrectName ? LoginResult.UnknownUsername : LoginResult.WrongPassword;
events.FailedLogin("login.AuthAccount", new LoginEventArgs(name, pass, ip, tmp));
break;
case AuthStatus.Verified:
client.AccountID = data.id;
Authentication.UpdateIPDate(syncServer, client.AccountID, ip, DateTime.Now);
Authentication.UpdateOnline(syncServer, client.AccountID, true);
builder += 1;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Normal;
events.SuccessfulLogin("login.AuthAccount", new LoginEventArgs(name, pass, ip, LoginResult.Success, client.AccountID));
break;
default:
kick = true;
break;
}
}
client.Send(builder, "Unknown_7D6");
if (kick)
{
client.Disconnect();
}
if (data.id > 0 && data.status == AuthStatus.Verified)
{
builder.New(0x7D6);
{
builder += 1;
builder += 0x0900;
builder += (byte)0;
builder += (int)AccountStatus.Normal;
builder += 0x4B6359;
builder += (byte)1;
builder += 0x67;
builder += (long)0;
builder += (byte)0;
builder += 0x43A56B60;
builder += (byte)0;
builder += 1;
builder += 0;
builder += 0;
builder += "0A47130EA1D04A4D99D58F094B7E88C3"; // AuthKey
builder += (short)0;
builder += (byte)1; // Char Num of all servers
builder += (byte)1; // Server ID
builder += (byte)1; // CharNum
}
client.Send(builder, "Unknown_7D6");
URLToClient(packet, builder, client, events);
SystemMessg(packet, builder, client, events);
SendChannels.SendChannelList(client);
var timer = new System.Timers.Timer(5000);
timer.AutoReset = true;
timer.Elapsed += (sender, e) => { SendChannels.SendChannelList(client); };
timer.Start();
client.Metadata["timer"] = timer;
}
}
public static void Unknown_7D6(PacketReader packet, PacketBuilder builder, ClientHandler client, EventHandler events)
{
packet.Skip(4);
var details = RSA.Decrypt(packet.ReadBytes(256));
var tmpdata = new byte[16];
Array.Copy(details, tmpdata, 16);
var name = Encoding.UTF8.GetString(tmpdata).Trim('\0');
Array.Copy(details, 65, tmpdata, 0, 16);
var pass = Encoding.UTF8.GetString(tmpdata).Trim('\0');
Log.Notice("Login authentication with name: " + name);
var ip = client.RemoteEndPoint.ToString().Split(':')[0];
var syncServer = client.Metadata["syncServer"] as SyncReceiver;
var data = Authentication.FetchAccount(syncServer, name, pass);
var kick = false;
if (data == null || data.id == -1)
{
builder.New(0x7D6);
{
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.OutOfService;
}
events.FailedLogin("login.AuthAccount", new LoginEventArgs(name, pass, ip, LoginResult.OutOfService));
client.Send(builder, "Unknown_7D6");
return;
}
builder.New(0x7D6);
{
switch (data.status)
{
case AuthStatus.Unverified:
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Unverified;
break;
case AuthStatus.Banned:
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Banned;
break;
case AuthStatus.IncorrectName:
case AuthStatus.IncorrectPass:
builder += 0;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Incorrect;
var tmp = data.status == AuthStatus.IncorrectName ? LoginResult.UnknownUsername : LoginResult.WrongPassword;
events.FailedLogin("login.AuthAccount", new LoginEventArgs(name, pass, ip, tmp));
break;
case AuthStatus.Verified:
client.AccountID = data.id;
Authentication.UpdateIPDate(syncServer, client.AccountID, ip, DateTime.Now);
builder += 1;
builder += 0;
builder += (byte)0;
builder += (int)AccountStatus.Normal;
events.SuccessfulLogin("login.AuthAccount", new LoginEventArgs(name, pass, ip, LoginResult.Success, client.AccountID));
break;
default: kick = true; break;
}
}
client.Send(builder, "Unknown_7D6");
if (kick)
{
client.Disconnect();
}
if (data.id > 0 && data.status == AuthStatus.Verified)
{
builder.New(0x7D6);
{
builder += 1;
builder += 0x0700;
builder += (byte)0;
builder += (int)AccountStatus.Normal;
builder += 0x2FD49F;
builder += (byte)1;
builder += 0x67;
builder += (long)0;
builder += (byte)0;
builder += 0x55746A01;
builder += (byte)0;
builder += 1;
builder += 0;
builder += 0x02;
builder += "A6318A0A7D294CE2A7019511FEDB7AD7"; // AuthKey
builder += (short)0;
builder += (byte)1; // Char Num of all servers
builder += (byte)1; // Server ID
builder += (byte)1; // CharNum
}
client.Send(builder, "Unknown_7D6");
URLToClient(packet, builder, client, events);
SystemMessg(packet, builder, client, events);
SendChannels.SendChannelList(client);
var timer = new System.Timers.Timer(5000);
timer.AutoReset = true;
timer.Elapsed += (sender, e) => { SendChannels.SendChannelList(client); };
timer.Start();
client.Metadata["timer"] = timer;
}
}
public static void CheckVersion(PacketReader packet, PacketBuilder builder, ClientHandler client, EventHandler events)
{
var version = packet.ReadInt();
var ip = client.RemoteEndPoint.ToString().Split(':')[0];
var kick = false;
var ver = client.Metadata["version"] as int[];
var clientVersion = ver[0];
var ignore = ver[2];
if (version != clientVersion && ignore == 0)
{
Log.Notice(string.Format("Failed ClientAuth IP: {0} Client ver: {1} Server ver: {2}", ip, version, clientVersion));
if (version > clientVersion)
{
events.VersionMismatch("login.CheckVersion", new VersionCheckEventArgs(version, ip, VersionCheckResult.NewerClient));
}
else
{
events.VersionMismatch("login.CheckVersion", new VersionCheckEventArgs(version, ip, VersionCheckResult.OlderClient));
}
kick = true;
}
if (ignore == 0)
{
version = clientVersion;
}
events.VersionMismatch("login.CheckVersion", new VersionCheckEventArgs(version, ip, VersionCheckResult.Match));
builder.New(0x7A);
{
builder += version; // Client Version
builder += 0x0059077C; // Debug
builder += 0; // Reserved
builder += 0; // Reserved
}
client.Send(builder, "CheckVersion");
if (kick)
{
events.ClientDisconnected(client, client);
return;
}
var id = -2;
var sleep = new Timer(500);
sleep.Elapsed += (s, _e) =>
{
if (id == -2)
{
var syncServer = client.Metadata["syncServer"] as SyncReceiver;
id = Authentication.GetUser(syncServer, (ulong)client.Metadata["magic"]);
}
if (id > 0)
{
client.AccountID = id;
SendChannels.SendChannelList(client);
var timer = new Timer(5000);
timer.AutoReset = true;
timer.Elapsed += (sender, e) => { SendChannels.SendChannelList(client); };
timer.Start();
client.Metadata["timer"] = timer;
}
sleep.Stop();
};
sleep.Start();
}
/*
* CheckVersion Packet
* -------------------------
* Client2Server Structure:
*
* ushort : magic code
* ushort : size
* int : padding
* ushort : opcode
*
* int : version1 #client version
* int : version2 #debug
* int : version3 #reserved
* int : version4 #reserved
* -------------------------
* Server2Client Structure:
*
* ushort : magic code
* ushort : size
* ushort : opcode
*
* int : version1 #client version
* int : version2 #debug
* int : version3 #reserved
* int : version4 #reserved
*/
#endregion
public static void CheckVersion(PacketReader packet, PacketBuilder builder, ClientHandler client, EventHandler events)
{
int version = packet.ReadInt();
var conf = client.Metadata["conf"] as Configuration;
if (conf == null)
{
return;
}
int clientVersion = conf.ClientVersion;
// i dont like this one, should be way better: client.GetIpAddress();
string ip = client.RemoteEndPoint.ToString().Split(':')[0];
bool kick = false;
if (conf.Debug)
{
// skipping on debug mode
builder.New(0x7A);
{
builder += version; // Client Version
builder += 0; // Debug
builder += 0; // Reserved
builder += 0; // Reserved
}
events.VersionMismatch("login.CheckVersion", new VersionCheckEventArgs(version, ip, VersionCheckResult.Match));
client.Send(builder, "CheckVersion");
return;
}
var result = VersionCheckResult.None;
if (version != clientVersion)
{
result = version > clientVersion ? VersionCheckResult.NewerClient : VersionCheckResult.OlderClient;
kick = true;
Log.Notice(string.Format("Failed CheckVersion Ip: {0} Client: {1}; Server: {2}", ip, version, clientVersion));
}
else
{
result = VersionCheckResult.Match;
}
events.VersionMismatch("login.CheckVersion", new VersionCheckEventArgs(version, ip, result));
builder.New(0x7A);
{
builder += clientVersion; // Client Version
builder += 0; // Debug
builder += 0; // Reserved
builder += 0; // Reserved
}
client.Send(builder, "CheckVersion");
if (kick)
{
// we have to be sure that client will be disconnected
// if client didnt closed it's connection, server will close after 800ms
var waitKick = new Timer(800);
waitKick.Elapsed += (s, _e) =>
{
client.Disconnect();
waitKick.Stop();
};
waitKick.Start();
return;
}
int id = -2;
var sleep = new Timer(500);
sleep.Elapsed += (s, _e) =>
{
if (id == -2)
{
var syncServer = client.Metadata["syncServer"] as SyncReceiver;
id = Authentication.GetUser(syncServer, (ulong)client.Metadata["magic"]);
}
if (id > 0)
{
client.AccountID = id;
SendChannels.SendChannelList(client);
var timer = new Timer(5000);
timer.AutoReset = true;
timer.Elapsed += (sender, e) => { SendChannels.SendChannelList(client); };
timer.Start();
client.Metadata["timer"] = timer;
}
sleep.Stop();
};
sleep.Start();
}