public SystemPacket(Header header, IMessage message, ushort ConnectionId, OperationalSocket OpSocket)
{
this.Header = header;
this.Message = message;
this.ConnectionId = ConnectionId;
this.OpSocket = OpSocket;
}
/// <summary>
/// Send data to the established connection
/// </summary>
/// <param name="Message">The data to send</param>
/// <param name="Header">The Header to use for adding additional information</param>
/// <param name="feature">The Feature that has been used for this Message</param>
/// <param name="OpSocket">The OperationalSocket that has been used for this Message</param>
internal int SendMessage(IMessage Message, Header Header, Feature feature = null, OperationalSocket OpSocket = null)
{
lock (SendLock)
{
if (!Connected)
return -1;
if (Message == null)
throw new ArgumentException("Message cannot be null");
if (Header == null)
throw new ArgumentException("Header cannot be null");
ushort HeaderId = OpSocket != null ? OpSocket.Headers.GetHeaderId(Header) : Headers.GetHeaderId(Header);
byte[] SerializedHeader = Header.Serialize(Header);
uint messageId = OpSocket != null ? OpSocket.MessageHandler.GetMessageId(Message.GetType()) : messageHandler.GetMessageId(Message.GetType());
if (SerializedHeader.Length >= MAX_PACKET_SIZE)
throw new ArgumentException("Header length cannot be greater then " + MAX_PAYLOAD);
using (MemoryStream outStream = new MemoryStream())
using (PayloadWriter pw = new PayloadWriter(outStream))
{
pw.WriteBytes(new byte[HEADER_SIZE], 0, HEADER_SIZE); //reserve space
pw.WriteBytes(SerializedHeader);
pw.WriteUInteger(messageId);
int packetSize = messageHandler.EncryptMessage(this, Message, outStream);
if (pw.Length > MAX_PACKET_SIZE)
throw new OverflowException("Message size cannot be greater then " + MAX_PACKET_SIZE);
int PayloadLength = pw.Length - Connection.HEADER_SIZE;
byte CurPacketId = 0;
int FeatureId = feature != null ? feature.GetFeatureId() : -1;
ushort ConnectionId = OpSocket != null ? OpSocket.ConnectionId : (ushort)0;
byte checksum = 0;
checksum += (byte)PayloadLength;
checksum += CurPacketId;
checksum += (byte)ConnectionId;
checksum += (byte)HeaderId;
checksum += (byte)FeatureId;
pw.Position = 0;
pw.WriteThreeByteInteger(PayloadLength); //length
pw.WriteByte(CurPacketId); //cur packet id
pw.WriteUShort(ConnectionId); //Connection Id
pw.WriteUShort(HeaderId); //Header Id
pw.WriteByte(checksum);
pw.WriteInteger(FeatureId);
//encrypt the header
lock (HeaderEncryption)
{
HeaderEncryption.Encrypt(pw.GetBuffer(), 0, HEADER_SIZE);
byte[] temp = pw.GetBuffer();
headerConfuser.Obfuscate(ref temp, 0);
}
int SendNum = 0;
try
{
for (int i = 0; i < outStream.Length;)
{
int len = i + 65535 < outStream.Length ? 65535 : (int)outStream.Length - i;
Handle.Send(outStream.GetBuffer(), i, len, SocketFlags.None);
i += len;
SendNum += len;
}
}
catch (Exception ex)
{
Disconnect();
return -1;
}
SysLogger.Log("Send " + outStream.Length, SysLogType.Network);
PacketsOut++;
DataOut += (ulong)outStream.Length;
this.LastPacketSendSW = Stopwatch.StartNew();
return SendNum;
}
/*using (OptimizedPayloadStream ms = new OptimizedPayloadStream(SerializedHeader, HeaderId, feature, OpSocket))
{
ms.Write(BitConverter.GetBytes(messageId), 0, 4);
MemoryStream stream = ms.PayloadFrames[ms.PayloadFrames.Count - 1];
int ReservedPos = (int)stream.Position;
ms.Write(new byte[3], 0, 3); //reserve space
ms.WritingMessage = true;
Serializer.Serialize(ms, Message);
ms.WritingMessage = false;
using (PayloadWriter pw = new PayloadWriter(new MemoryStream(stream.GetBuffer())))
{
pw.Position = ReservedPos; //skip MessageId data
pw.WriteThreeByteInteger(ms.MessageLength);//Reserved Space + MessageId = 7
}
ms.Commit(this);
for (int i = 0; i < ms.PayloadFrames.Count; i++)
{
stream = ms.PayloadFrames[i];
lock (HeaderEncryption)
{
HeaderEncryption.Encrypt(stream.GetBuffer(), 0, HEADER_SIZE);
byte[] temp = stream.GetBuffer();
headerConfuser.Obfuscate(ref temp, 0);
}
//lock (PayloadEncryption)
//{
// PayloadEncryption.Encrypt(stream.GetBuffer(), HEADER_SIZE, (int)stream.Length - HEADER_SIZE);
//}
Handle.Send(stream.GetBuffer(), 0, (int)stream.Length, SocketFlags.None);
}
}*/
}
}
/// <summary>
/// Send a message to the other side
/// </summary>
/// <param name="Message">The message to send</param>
/// <param name="Header">The header that is being used for this message</param>
protected void SendMessage(IMessage Message, Header Header)
{
Client.Connection.SendMessage(Message, new ConnectionHeader(Header, this, 0), null, this);
}
internal void InternalSendMessage(IMessage Message, Header Header)
{
Client.Connection.SendMessage(Message, Header);
}
public abstract void onReceiveMessage(IMessage Message, Header header);
/// <summary>
/// Serialize the Message to output stream
/// </summary>
/// <param name="message"></param>
/// <param name="TargetStream"></param>
/// <returns>The size of the serialzed message</returns>
internal int EncryptMessage(Connection conn, IMessage message, MemoryStream TargetStream)
{
PayloadWriter pw = new PayloadWriter(TargetStream);
int PayloadPos = pw.Position;
Serializer.Serialize(TargetStream, message);
//return (int)TargetStream.Length;
#region Security
//compress data
if (CompressionAlgorithm.QuickLZ == (conn.CompressionAlgorithm & CompressionAlgorithm.QuickLZ))
{
UnsafeQuickLZ quickLz = new UnsafeQuickLZ();
byte[] compressed = quickLz.compress(TargetStream.GetBuffer(), (uint)Connection.HEADER_SIZE, (uint)TargetStream.Length - Connection.HEADER_SIZE);
if (compressed != null &&
compressed.Length + Connection.HEADER_SIZE < TargetStream.Length) //only apply compression if it's smaller then the original data
{
TargetStream.Position = Connection.HEADER_SIZE;
TargetStream.Write(compressed, 0, compressed.Length);
if (TargetStream.Length != compressed.Length + Connection.HEADER_SIZE)
TargetStream.SetLength(compressed.Length + Connection.HEADER_SIZE);
}
}
//encrypt all the data
if (EncAlgorithm.HwAES == (conn.EncryptionAlgorithm & EncAlgorithm.HwAES))
{
lock (conn.EncAES)
{
//no need to re-size the stream here, AES will encrypt at the same size or bigger then the stream, so data will be overwritten
byte[] encrypted = conn.EncAES.Encrypt(TargetStream.GetBuffer(), Connection.HEADER_SIZE, (int)TargetStream.Length - Connection.HEADER_SIZE);
TargetStream.Position = Connection.HEADER_SIZE;
TargetStream.Write(encrypted, 0, encrypted.Length);
}
}
if (EncAlgorithm.WopEx == (conn.EncryptionAlgorithm & EncAlgorithm.WopEx))
{
lock (conn.PayloadEncryption)
{
conn.PayloadEncryption.Encrypt(TargetStream.GetBuffer(), Connection.HEADER_SIZE, (int)TargetStream.Length - Connection.HEADER_SIZE);
}
}
#endregion
return pw.Length - PayloadPos;
}
/*public override void onReceiveData(byte[] Data, Header header)
{
bench.Bench(new BenchCallback(() => { }));
if (bench.PastASecond)
{
Console.WriteLine("Speed:" + bench.SpeedPerSec + ", raw size: " + Math.Round( ((((ulong)(Data.Length + 28) * bench.SpeedPerSec) / 1000F) / 1000F) / 1000F, 2) + "GBps");
}
}*/
public override void onReceiveMessage(IMessage Message, Header header)
{
//base.SendMessage(new TestMessage() { Buffer = new byte[] { 1, 3, 3, 7 } }, header);
}
public override void onReceiveMessage(IMessage Message, Header header)
{
}
