public void ReceiveBytes(int numBytes)
{
Monitor.Enter(this);
try
{
int bufferSize = this.m_client.PacketBufSize + numBytes;
if (bufferSize < (int)GSPacketIn.HDR_SIZE)
{
this.m_client.PacketBufSize = bufferSize;
}
else
{
byte[] buffer = this.m_client.PacketBuf;
if (bufferSize > buffer.Length)
{
StreamProcessor.log.ErrorFormat("Error Buffersize: num {0} buffersize:{1} old buffer size:{2} buffer length:{3}", new object[]
{
numBytes,
bufferSize,
this.m_client.PacketBufSize,
buffer.Length
});
bufferSize = buffer.Length;
}
this.m_client.PacketBufSize = 0;
int curOffset = 0;
int dataleft = bufferSize;
while (dataleft >= (int)GSPacketIn.HDR_SIZE && curOffset >= 0)
{
int packetLength = 0;
if (this.m_client.Encryted)
{
int key = this.receive_fsm.getState();
int i = this.receive_fsm.count;
while (curOffset + 4 <= bufferSize)
{
int header = ((int)((byte)((int)buffer[curOffset] ^ (key++ & 16711680) >> 16)) << 8) + (int)((byte)((int)buffer[curOffset + 1] ^ (key++ & 16711680) >> 16));
if (header == (int)GSPacketIn.HEADER)
{
packetLength = ((int)((byte)((int)buffer[curOffset + 2] ^ (key++ & 16711680) >> 16)) << 8) + (int)((byte)((int)buffer[curOffset + 3] ^ (key++ & 16711680) >> 16));
break;
}
curOffset++;
}
}
else
{
while (curOffset + 4 <= bufferSize)
{
int header = ((int)buffer[curOffset] << 8) + (int)buffer[curOffset + 1];
if (header == (int)GSPacketIn.HEADER)
{
packetLength = ((int)buffer[curOffset + 2] << 8) + (int)buffer[curOffset + 3];
break;
}
curOffset++;
}
}
dataleft = bufferSize - curOffset;
if (packetLength < (int)GSPacketIn.HDR_SIZE || packetLength > buffer.Length)
{
StreamProcessor.log.Error(string.Concat(new object[]
{
"packetLength:",
packetLength,
",GSPacketIn.HDR_SIZE:",
GSPacketIn.HDR_SIZE,
",offset:",
curOffset,
",bufferSize:",
bufferSize,
",numBytes:",
numBytes
}));
StreamProcessor.log.ErrorFormat("Err pkg from {0}:", this.m_client.TcpEndpoint);
StreamProcessor.log.Error(Marshal.ToHexDump("===> error buffer", buffer, curOffset, (dataleft > 48) ? 48 : dataleft));
if (this.m_client.Strict && packetLength != 0)
{
StreamProcessor.log.Error("Disconnect the client in [Strict] mode.");
this.m_client.PacketBufSize = 0;
this.m_client.Disconnect();
return;
}
curOffset += 2;
dataleft = bufferSize - curOffset;
}
else
{
if (dataleft < packetLength)
{
break;
}
int size = (packetLength <= 1024) ? 1024 : packetLength;
GSPacketIn pkg = new GSPacketIn(new byte[size], size);
if (this.m_client.Encryted)
{
pkg.CopyFrom(buffer, curOffset, 0, packetLength, this.receive_fsm.getState());
this.receive_fsm.UpdateState();
}
else
{
pkg.CopyFrom(buffer, curOffset, 0, packetLength);
}
pkg.ReadHeader();
if (pkg.CheckSum == pkg.CalculateChecksum())
{
pkg.ClearChecksum();
//if (StreamProcessor.log.IsDebugEnabled)
//{
//StreamProcessor.log.Debug(Marshal.ToHexDump("Recieve Packet:", pkg.Buffer, 0, packetLength));
//}
try
{
//StreamProcessor.log.Debug("Receive Packet!");
this.m_client.OnRecvPacket(pkg);
}
catch (Exception e)
{
StreamProcessor.log.Error("HandlePacket(pak)", e);
}
curOffset += packetLength;
dataleft = bufferSize - curOffset;
}
else
{
curOffset += 2;
dataleft = bufferSize - curOffset;
}
}
}
if (dataleft > 0)
{
Array.Copy(buffer, curOffset, buffer, 0, dataleft);
this.m_client.PacketBufSize = dataleft;
}
}
}
finally
{
Monitor.Exit(this);
}
}
