public static async Task InvokeHandler <T>(Packet reader, NodeSession session)
{
var message = reader.Header.Message;
Tuple <MethodInfo, Type, SessionState> data;
if (MessageHandlers.TryGetValue(message, out data))
{
if ((session.State & data.Item3) == SessionState.None)
{
var clientInfo = session.GetClientInfo();
Log.Debug($"Client '{clientInfo}': Received not allowed packet for state '{session.State}'.");
Log.Debug($"Disconnecting '{clientInfo}'.");
session.Dispose();
return;
}
var handlerObj = Activator.CreateInstance(data.Item2) as ClientPacket;
handlerObj.Packet = reader;
await Task.Run(() => handlerObj.Read());
if (handlerObj.IsReadComplete)
{
data.Item1.Invoke(null, new object[] { handlerObj, session });
}
else
{
Log.Error($"Packet read for '{data.Item2.Name}' failed.");
}
}
else
{
var msgName = Enum.GetName(typeof(ClientMessage), message) ?? Enum.GetName(typeof(GlobalClientMessage), message);
if (msgName == null)
{
Log.Error($"Received unknown opcode '0x{message:X}, Length: {reader.Data.Length}'.");
}
else
{
Log.Error($"Packet handler for '{msgName} (0x{message:X}), Length: {reader.Data.Length}' not implemented.");
}
}
}
public static async void HandleAuthContinuedSession(AuthContinuedSession authContinuedSession, NodeSession session)
{
var accountInfo = Manager.Redirect.GetAccountInfo(authContinuedSession.Key);
// Delete redirect key
Manager.Redirect.DeleteCharacterRedirect(authContinuedSession.Key);
if (accountInfo != null)
{
var sha1 = new SHA1Managed();
var emailBytes = Encoding.UTF8.GetBytes(accountInfo.Item1.AccountId + "#" + accountInfo.Item1.Index);
var sessionKeyBytes = accountInfo.Item1.SessionKey.ToByteArray();
var challengeBytes = BitConverter.GetBytes(session.Challenge);
sha1.TransformBlock(emailBytes, 0, emailBytes.Length, emailBytes, 0);
sha1.TransformBlock(sessionKeyBytes, 0, 40, sessionKeyBytes, 0);
sha1.TransformFinalBlock(challengeBytes, 0, 4);
if (sha1.Hash.Compare(authContinuedSession.Digest))
{
session.State = SessionState.Authenticated;
session.Account = DB.Auth.Single <Account>(a => a.Id == accountInfo.Item1.AccountId);
session.GameAccount = accountInfo.Item1;
session.Crypt = new Framework.Cryptography.WoW.WoWCrypt();
session.Crypt.Initialize(accountInfo.Item1.SessionKey.ToByteArray(), session.ClientSeed, session.ServerSeed);
// Resume on the new connection
await session.Send(new ResumeComms());
return;
}
}
session.Dispose();
}