private ClientMessage TryParseAsOldCrypto(byte[] packet)
{
try
{
int i = 0;
while (i < packet.Length)
{
int lenght = Base64Encoding.DecodeInt32(new byte[] { (byte)packet[i++], (byte)packet[i++], (byte)packet[i++] });
if (lenght > 0)
{
uint id = Base64Encoding.DecodeUInt32(new byte[] { (byte)packet[i++], (byte)packet[i++] });
if (id > 0)
{
byte[] bytes = new byte[lenght - 2];
for (int j = 0; j < bytes.Length; j++)
{
bytes[j] = packet[i++];
}
OldCryptoClientMessage crypto = new OldCryptoClientMessage();
crypto.Init(id, bytes);
return(crypto);
}
}
}
}
catch
{
return(null);
}
return(null);
}
public override bool HandlePacket(GameClient session, ref byte[] packet)
{
try
{
for (int i = 0; i < packet.Length; i++)
{
if (this.ReadByte(packet[i]))
{
if (this.RC4 != null)
{
this.Packet = this.RC4.Decipher(this.Packet);
}
OldCryptoClientMessage message = new OldCryptoClientMessage();
message.Init(Base64Encoding.DecodeUInt32(new byte[] { this.Packet[0], this.Packet[1] }), this.Packet);
message.Skip(2);
session.HandlePacket(message);
Array.Clear(this.Packet, 0, this.Packet.Length);
this.Packet = null;
this.Lenght = null;
this.LenghtBytes = null;
this.Pointer = 0;
if (session.Disconnected)
{
return(false); //packet disconnected the user! :D
}
}
}
return(true);
}
catch (Exception ex)
{
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendLine("Exception: " + ex.ToString());
stringBuilder.AppendLine("- - - DEBUG INFORMATION BELOW - - - ");
stringBuilder.AppendLine("Lenght bytes:" + string.Join(",", this.LenghtBytes));
stringBuilder.Append("Lenght bytes as UTF8: ");
foreach (byte?byte_ in this.LenghtBytes)
{
stringBuilder.Append(Encoding.UTF8.GetString(new byte[1] {
(byte)byte_
}));
}
stringBuilder.AppendLine();
stringBuilder.AppendLine("Lenght: " + this.Lenght);
if (this.Packet != null)
{
stringBuilder.AppendLine("Bytes readed: " + string.Join(",", this.Packet));
stringBuilder.AppendLine("Bytes readed as UTF8: " + Encoding.UTF8.GetString(this.Packet));
}
stringBuilder.AppendLine("Pointer: " + this.Pointer);
stringBuilder.AppendLine("Reading bytes: " + string.Join(",", packet));
stringBuilder.AppendLine("Reading bytes as UTF8: " + Encoding.UTF8.GetString(packet));
Logging.LogPacketException(stringBuilder.ToString());
session.Stop("OldCryptoDataDecoderHandler failed");
return(false);
}
}
