public static bool Invoke(Packet reader, Session session)
{
var message = reader.Header.Message;
Log.Network($"Received Auth packet: {message} (0x{message:X}), Length: {reader.Data.Length}");
HandleAuthPacket packet;
if (AuthMessageHandlers.TryGetValue(message, out packet))
{
packet.Invoke(reader, session);
return true;
}
return false;
}
public static void HandleGameAccountListMyAccounts(Packet packet, Session session)
{
var userId = uint.Parse(packet["UserId"].ToString());
if (userId == session.Account.Id)
{
var reply = new Packet(StsReason.OK, packet.Header.Sequence);
// Only 1 GameAccount supported for now.
reply.Xml.WriteElementRoot("Reply");
reply.Xml.WriteCustom("<GameAccount>\n");
reply.Xml.WriteElement("Alias", $"{session.Account.Alias}");
reply.Xml.WriteElement("Created", "");
reply.Xml.WriteCustom("</GameAccount>\n");
session.Send(reply);
}
}
public static void HandleAuthLoginFinish(Packet packet, Session session)
{
// Server packets are encrypted now.
session.ServerCrypt = new RC4();
session.ServerCrypt.PrepareKey(session.SecureRemotePassword.SessionKey);
var reply = new Packet(StsReason.OK, packet.Header.Sequence);
reply.Xml.WriteElementRoot("Reply");
reply.Xml.WriteElement("LocationId", "");
reply.Xml.WriteElement("UserId", session.Account.Id.ToString());
reply.Xml.WriteElement("UserCenter", "");
reply.Xml.WriteElement("UserName", session.Account.Email);
reply.Xml.WriteElement("AccessMask", "");
reply.Xml.WriteElement("Roles", "");
reply.Xml.WriteElement("Status", "");
session.Send(reply);
}
public static void HandleAuthKeyData(Packet packet, Session session)
{
var keyData = new BinaryReader(new MemoryStream(Convert.FromBase64String(packet["KeyData"].ToString())));
var a = keyData.ReadBytes(keyData.ReadInt32());
var m = keyData.ReadBytes(keyData.ReadInt32());
session.SecureRemotePassword.CalculateU(a);
session.SecureRemotePassword.CalculateClientM(a);
if (session.SecureRemotePassword.ClientM.Compare(m))
{
session.SecureRemotePassword.CalculateServerM(m, a);
session.ClientCrypt = new RC4();
session.ClientCrypt.PrepareKey(session.SecureRemotePassword.SessionKey);
session.State = 1;
var SKeyData = new BinaryWriter(new MemoryStream());
SKeyData.Write(session.SecureRemotePassword.ServerM.Length);
SKeyData.Write(session.SecureRemotePassword.ServerM);
var reply = new Packet(StsReason.OK, packet.Header.Sequence);
reply.Xml.WriteElementRoot("Reply");
reply.Xml.WriteElement("KeyData", Convert.ToBase64String(SKeyData.ToArray()));
session.Send(reply);
}
else
{
session.Account = null;
var reply = new Packet(StsReason.Error, packet.Header.Sequence);
reply.WriteError(AuthResult.ErrBadPasswd);
session.Send(reply);
}
}
public static void HandleAuthLoginStart(Packet packet, Session session)
{
// Account.Email
var loginName = packet["LoginName"].ToString();
session.Account = DB.Auth.Single<Account>(a => a.Email == loginName);
// Support for email only.
if (loginName != null && session.Account != null)
{
session.SecureRemotePassword = new SRP6a(session.Account.Salt, loginName, session.Account.PasswordVerifier);
session.SecureRemotePassword.CalculateB();
var keyData = new BinaryWriter(new MemoryStream());
keyData.Write(session.SecureRemotePassword.S.Length);
keyData.Write(session.SecureRemotePassword.S);
keyData.Write(session.SecureRemotePassword.B.Length);
keyData.Write(session.SecureRemotePassword.B);
var reply = new Packet(StsReason.OK, packet.Header.Sequence);
reply.Xml.WriteElementRoot("Reply");
reply.Xml.WriteElement("KeyData", Convert.ToBase64String(keyData.ToArray()));
session.Send(reply);
}
else
{
// Let's use ErrBadPasswd instead of ErrAccountNotFound.
var reply = new Packet(StsReason.Error, packet.Header.Sequence);
reply.WriteError(AuthResult.ErrBadPasswd);
session.Send(reply);
}
}
public static void HandleAuthRequestGameToken(Packet packet, Session session)
{
DB.Auth.Delete<Redirect>(r => r.AccountId == session.Account.Id);
var redirectData = new Redirect
{
AccountId = session.Account.Id,
IP = session.GetIPAddress()
};
if (DB.Auth.Add(redirectData))
{
// Reset gateway ticket and redirect.
if (DB.Auth.Update<Account>(a => a.Id == session.Account.Id, a => a.GatewayTicket.Set("")))
{
var reply = new Packet(StsReason.OK, packet.Header.Sequence);
reply.Xml.WriteElementRoot("Reply");
reply.Xml.WriteElement("Token", "");
session.Send(reply);
}
}
else
session.Dispose();
}