private void ReadHandshakeHeaders()
{
byte[] lineBuffer = new byte[256];
string header = String.Empty;
int totalBytesCame = 0;
bool gotException;
int bytesOfLastHeader = 0;
while (true)
{
gotException = false;
byte[] bf = new byte[1];
int bytesCame = _protocol.Receive(bf);
if (bytesCame == 0)
{
break;
}
Buffer.BlockCopy(bf, 0, lineBuffer, totalBytesCame, bytesCame);
totalBytesCame += bytesCame;
try
{
header = Encoding.UTF8.GetString(lineBuffer, bytesOfLastHeader, totalBytesCame - bytesOfLastHeader);
}
catch
{
gotException = true;
}
if (totalBytesCame != 0 && !gotException && header[header.Length - 1] == '\n')
{
HandshakeHeaders.Add(header.TrimEnd('\n', '\r'));
bytesOfLastHeader = totalBytesCame;
}
if (header.Length > 4 && HandshakeHeaders.Count == 0)
{
if (!header.StartsWith("http", StringComparison.OrdinalIgnoreCase))
{
throw new ProtocolExeption("Server responce is not recognized", StatusCode.ProtocolError);
}
}
// empty header means we got \r\n\r\n which was trimmed. This means end of headers block.
if (HandshakeHeaders.Count >= 2 && String.IsNullOrEmpty(HandshakeHeaders.LastOrDefault()))
{
byte[] eohMark = new byte[2];
break;
}
}
HandshakeHeaders.RemoveAll(s => String.IsNullOrEmpty(s));
}
