private void ProcessNetworkBuffer(NetworkConnection connection)
{
while (connection.NetworkBufferPosition >= 0x1C)
{
uint bufferSize = 0;
byte[] destinationArray;
lock (connection.NetworkBufferLock)
{
var indexes = new List<uint>
{
BitConverter.ToUInt32(connection.NetworkBuffer, 0),
BitConverter.ToUInt32(connection.NetworkBuffer, 4),
BitConverter.ToUInt32(connection.NetworkBuffer, 8),
BitConverter.ToUInt32(connection.NetworkBuffer, 12)
};
if ((indexes[0] != 0x41A05252) && ((indexes.Any(x => x != 0))))
{
AdjustNetworkBuffer(connection);
return;
}
bufferSize = BitConverter.ToUInt32(connection.NetworkBuffer, 0x18);
if ((bufferSize == 0) || (bufferSize > 0x10000))
{
AdjustNetworkBuffer(connection);
return;
}
if (connection.NetworkBufferPosition < bufferSize)
{
if (DateTime.Now.Subtract(connection.LastNetworkBufferUpdate)
.Seconds > 5)
{
AdjustNetworkBuffer(connection);
}
break;
}
destinationArray = new byte[bufferSize];
Array.Copy(connection.NetworkBuffer, destinationArray, bufferSize);
Array.Copy(connection.NetworkBuffer, bufferSize, connection.NetworkBuffer, 0L, connection.NetworkBufferPosition - bufferSize);
connection.NetworkBufferPosition -= (int) bufferSize;
connection.LastNetworkBufferUpdate = DateTime.Now;
}
if (bufferSize <= 40)
{
return;
}
var timeDifference = BitConverter.ToUInt64(destinationArray, 0x10);
var time = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(timeDifference)
.ToLocalTime();
int limiter = BitConverter.ToInt16(destinationArray, 30);
int encoding = BitConverter.ToInt16(destinationArray, 0x20);
var bytes = new byte[0x10000];
int messageLength;
switch (encoding)
{
case 0:
case 1:
messageLength = ((int) bufferSize) - 40;
for (var i = 0; i < ((bufferSize / 4) - 10); i++)
{
Array.Copy(BitConverter.GetBytes(BitConverter.ToUInt32(destinationArray, (i * 4) + 40)), 0, bytes, i * 4, 4);
}
break;
default:
try
{
using (var decompressedStream = new DeflateStream(new MemoryStream(destinationArray, 0x2A, destinationArray.Length - 0x2A), CompressionMode.Decompress))
{
messageLength = decompressedStream.Read(bytes, 0, bytes.Length);
}
}
catch (Exception ex)
{
return;
}
break;
}
var position = 0;
try
{
for (var i = 0; i < limiter; i++)
{
if ((position + 4) > messageLength)
{
return;
}
var messageSize = BitConverter.ToUInt32(bytes, position);
if ((position + messageSize) > messageLength)
{
return;
}
if (messageSize > 0x18)
{
var networkPacket = new Common.Core.Network.NetworkPacket
{
Key = BitConverter.ToUInt32(bytes, position + 0x10),
Buffer = bytes,
CurrentPosition = position,
MessageSize = (int) messageSize,
PacketDate = time
};
AppContextHelper.Instance.RaiseNewPacket(networkPacket);
}
position += (int) messageSize;
}
}
catch (Exception ex)
{
return;
}
}
}
private void ProcessNetworkBuffer(NetworkConnection connection)
{
while (connection.NetworkBufferPosition >= 0x1C)
{
uint bufferSize = 0;
byte[] destinationArray;
lock (connection.NetworkBufferLock)
{
var indexes = new List <uint>
{
BitConverter.ToUInt32(connection.NetworkBuffer, 0),
BitConverter.ToUInt32(connection.NetworkBuffer, 4),
BitConverter.ToUInt32(connection.NetworkBuffer, 8),
BitConverter.ToUInt32(connection.NetworkBuffer, 12)
};
if ((indexes[0] != 0x41A05252) && ((indexes.Any(x => x != 0))))
{
AdjustNetworkBuffer(connection);
return;
}
bufferSize = BitConverter.ToUInt32(connection.NetworkBuffer, 0x18);
if ((bufferSize == 0) || (bufferSize > 0x10000))
{
AdjustNetworkBuffer(connection);
return;
}
if (connection.NetworkBufferPosition < bufferSize)
{
if (DateTime.Now.Subtract(connection.LastNetworkBufferUpdate)
.Seconds > 5)
{
AdjustNetworkBuffer(connection);
}
break;
}
destinationArray = new byte[bufferSize];
Array.Copy(connection.NetworkBuffer, destinationArray, bufferSize);
Array.Copy(connection.NetworkBuffer, bufferSize, connection.NetworkBuffer, 0L, connection.NetworkBufferPosition - bufferSize);
connection.NetworkBufferPosition -= (int)bufferSize;
connection.LastNetworkBufferUpdate = DateTime.Now;
}
if (bufferSize <= 40)
{
return;
}
var timeDifference = BitConverter.ToUInt64(destinationArray, 0x10);
var time = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(timeDifference)
.ToLocalTime();
int limiter = BitConverter.ToInt16(destinationArray, 30);
int encoding = BitConverter.ToInt16(destinationArray, 0x20);
var bytes = new byte[0x10000];
int messageLength;
switch (encoding)
{
case 0:
case 1:
messageLength = ((int)bufferSize) - 40;
for (var i = 0; i < ((bufferSize / 4) - 10); i++)
{
Array.Copy(BitConverter.GetBytes(BitConverter.ToUInt32(destinationArray, (i * 4) + 40)), 0, bytes, i * 4, 4);
}
break;
default:
try
{
using (var decompressedStream = new DeflateStream(new MemoryStream(destinationArray, 0x2A, destinationArray.Length - 0x2A), CompressionMode.Decompress))
{
messageLength = decompressedStream.Read(bytes, 0, bytes.Length);
}
}
catch (Exception ex)
{
return;
}
break;
}
var position = 0;
try
{
for (var i = 0; i < limiter; i++)
{
if ((position + 4) > messageLength)
{
return;
}
var messageSize = BitConverter.ToUInt32(bytes, position);
if ((position + messageSize) > messageLength)
{
return;
}
if (messageSize > 0x18)
{
var networkPacket = new Common.Core.Network.NetworkPacket
{
Key = BitConverter.ToUInt32(bytes, position + 0x10),
Buffer = bytes,
CurrentPosition = position,
MessageSize = (int)messageSize,
PacketDate = time
};
AppContextHelper.Instance.RaiseNewPacket(networkPacket);
}
position += (int)messageSize;
}
}
catch (Exception ex)
{
return;
}
}
}
