private void Client_DataReceived(EventDrivenTCPClient sender, object data)
{
byte[] newdata;
BinaryFormatter bf = new BinaryFormatter();
using (var ms = new MemoryStream())
{
bf.Serialize(ms, data);
newdata = ms.ToArray();
}
buffer.Write(newdata);
byte[] message;
byte[] timestamp;
byte signalLevel;
for (int i = 0; i < buffer.Count; i++)
{
if (buffer[i] == 0x1a)
{
buffer.Read(i);
i = 0;
switch (buffer[1])
{
case 0x31:
buffer.Read(1);
timestamp = buffer.Read(6);
signalLevel = buffer.Read(1)[0];
message = buffer.Read(2);
break;
case 0x32:
buffer.Read(31);
timestamp = buffer.Read(6);
signalLevel = buffer.Read(1)[0];
message = buffer.Read(7);
ParseModeS(message);
break;
case 0x33:
buffer.Read(1);
timestamp = buffer.Read(6);
signalLevel = buffer.Read(1)[0];
message = buffer.Read(14);
ParseModeS(message);
break;
default:
buffer.Read(1);
break;
}
}
}
}
private void AppendBuffer(byte[] newBuffer, int length)
{
// we need to keep a running buffer here, the last 1024 bytes? how best to find the end boundary? need to determine when the stream is finished!
m_TempBuffer.Write(newBuffer, length);
if (m_IsFileUpload)
{
if (m_EndBoundaryIndex < 0)
{
m_EndBoundaryIndex = StreamHelper.LastIndexOf(m_TempBuffer.RawBytes, m_TempBuffer.Count, m_EndBoundaryBytes);
if (!IsLargeFileUpload && m_EndBoundaryIndex > -1)
{
m_EndBoundaryIndex = (m_FullBuffer.Length + length) - (m_TempBuffer.Count - m_EndBoundaryIndex);
}
}
if (m_StartBoundaryIndex < 0)
{
m_StartBoundaryIndex = StreamHelper.IndexOf(m_FullBuffer, m_StartBoundaryBytes);
if (m_StartBoundaryIndex > -1)
{
m_StartBoundaryIndex = StreamHelper.IndexOf(m_FullBuffer, Encoding.UTF8.GetBytes("\r\n\r\n"), m_StartBoundaryIndex + m_StartBoundaryBytes.Length) + 4;
}
}
}
if (m_StartBoundaryIndex == -1 || !IsLargeFileUpload) // if this is not a file upload because no start boundary has been found then write buffer to memory
{
m_FullBuffer.Write(newBuffer, 0, length);
}
else
{
if (!m_FileCreated) // we have never written to the file, dump the contents of the full buffer now
{
bool exists = true;
while (exists)
{
m_TempFilename = Config.StaticConfig.TempFolder + "/" + Path.GetRandomFileName();
exists = File.Exists(m_TempFilename);
}
m_FileStream = new FileStream(m_TempFilename, FileMode.Create, FileAccess.Write);
m_FullBuffer.Position = m_StartBoundaryIndex;
m_FullBuffer.CopyTo(m_FileStream);
m_FileStream.Write(newBuffer, 0, length);
m_FileCreated = true;
}
else // we have previously written to the file, append new bytes
{
if (m_EndBoundaryIndex == -1)
{
m_FileStream.Write(newBuffer, 0, length);
}
else
{
m_FileStream.Write(newBuffer, 0, length - m_EndBoundaryBytes.Length);
}
}
}
}
