/// <summary>
/// Handles incoming packet.
/// </summary>
/// <param name="packet">Incoming packet.</param>
protected override void Handle( Packet packet )
{
Logger.WriteLine(Source.OuterNetwork, "Received: {0}", packet.ToString());
if ( !CacheServiceConnection.Active ) // validate if login service is active
{
Send(LoginFailed.ToPacket(UserAuthenticationResponseType.ServerMaintenance));
UserConnectionsListener.CloseActiveConnection(this);
return;
}
if ( QueuedRequestsPool.HasRequest(this, true) ) // validate if user is awaiting response from cache service
return;
switch ( packet.FirstOpcode )
{
case 0x07:
{
Send(ResponseAuthGameGuard.Static);
return;
}
case 0x00:
{
m_RSADecryptor = new RSAManaged();
m_RSADecryptor.ImportParameters(UserConnectionsListener.PrivateKey);
// get login and password
unsafe
{
byte[] bytes = new byte[0x80];
fixed ( byte* buf = bytes, src = packet.GetBuffer() )
L2Buffer.Copy(src, 0x01, buf, 0x00, 0x80);
fixed ( byte* buf = m_RSADecryptor.DecryptValue(bytes) )
{
L2Buffer.GetTrimmedString(buf, 0x03, ref Login, 0x0e);
L2Buffer.GetTrimmedString(buf, 0x11, ref Password, 0x10);
}
}
// validate user login
if ( !Utils.IsValidUserLogin(Login) )
{
Send(LoginFailed.ToPacket(UserAuthenticationResponseType.UserOrPasswordWrong));
return;
}
//Password = Utils.HashPassword(Password);
Session.AccountName = Login;
Logger.WriteLine(Session.ToString());
long requestId = long.MinValue;
// request cache to auth user
if ( QueuedRequestsPool.Enqueue(this, ref requestId) )
CacheServiceConnection.Send(new UserAuthenticationRequest(requestId, Login, Password, Session.ID).ToPacket());
else
{
Logger.WriteLine(Source.InnerNetwork, "Failed to send UserAuthenticationRequest to cache service, request was not enqueued by QueuedRequestsPool ?...");
Send(LoginFailed.ToPacket(UserAuthenticationResponseType.SystemError));
UserConnectionsListener.CloseActiveConnection(this);
}
return;
}
case 0x05:
{
int login1 = packet.ReadInt();
int login2 = packet.ReadInt();
if ( login1 != Session.Login1 || login2 != Session.Login2 )
{
Logger.WriteLine(Source.OuterNetwork, "Invalid UserSession data: {0}. BAN!", Session.ToString());
CacheServiceConnection.Send(new UnCacheUser(Session.ID).ToPacket());
UserConnectionsListener.CloseActiveConnection(this);
}
else
{
long requestID = long.MinValue;
if ( QueuedRequestsPool.Enqueue(this, ref requestID) )
CacheServiceConnection.Send(new WorldsListRequest(requestID).ToPacket());
else
{
Logger.WriteLine(Source.InnerNetwork, "Failed to send WorldsListRequest to cache service, request was not enqueued by QueuedRequestsPool ?...");
UserConnectionsListener.CloseActiveConnection(this);
}
}
return;
}
case 0x02:
{
// skip not needed data
packet.MoveOffset(8);
long requestID = long.MinValue;
if ( QueuedRequestsPool.Enqueue(this, ref requestID) )
CacheServiceConnection.Send(new JoinWorldRequest(requestID, Session.ID, packet.ReadByte()).ToPacket());
else
{
Logger.WriteLine(Source.InnerNetwork, "Failed to send JionWorldRequest to cache service, request was not enqueued by QueuedRequestsPool ?...");
UserConnectionsListener.CloseActiveConnection(this);
}
return;
}
}
Logger.WriteLine(Source.OuterNetwork, "Unknown packet received: {0}", packet.ToString());
UserConnectionsListener.CloseActiveConnection(this);
}
public ScrambledKeyPair( ref RSAParameters pivateKey, ref RSAParameters publicKey )
{
m_RSAManaged = new RSAManaged(1024);
pivateKey = m_RSAManaged.ExportParameters(true);
publicKey = m_RSAManaged.ExportParameters(false);
m_ScrambledModulus = ScrambleModulus(publicKey.Modulus);
}
/// <summary>
/// Initializes user connections listener.
/// </summary>
/// <param name="localEndPoint">Local ip endpoint.</param>
/// <param name="backlog">Backlog.</param>
/// <param name="enableFirewall">True, if firewall must be enabled, otherwise false.</param>
internal static void Initialize( IPEndPoint localEndPoint, int backlog, bool enableFirewall )
{
m_LocalEndPoint = localEndPoint;
m_Backlog = backlog;
m_EnableFirewall = enableFirewall;
RSAManaged rsa = new RSAManaged(1024);
PrivateKey = rsa.ExportParameters(true);
PublicKey = rsa.ExportParameters(false);
ScrambledKeysPair = new ScrambledKeyPair(ref PrivateKey, ref PublicKey);
rsa = null;
Enable();
}