private bool ParsePreface(ReadOnlyBuffer<byte> readableBuffer, out SequencePosition consumed, out SequencePosition examined)
{
consumed = readableBuffer.Start;
examined = readableBuffer.End;
if (readableBuffer.Length < ClientPreface.Length)
{
return false;
}
var span = readableBuffer.IsSingleSegment
? readableBuffer.First.Span
: readableBuffer.ToSpan();
for (var i = 0; i < ClientPreface.Length; i++)
{
if (ClientPreface[i] != span[i])
{
throw new Exception("Invalid HTTP/2 connection preface.");
}
}
consumed = examined = readableBuffer.GetPosition(readableBuffer.Start, ClientPreface.Length);
return true;
}
public LinePackageInfo Filter(ref ReadOnlyBuffer <byte> buffer)
{
return(new LinePackageInfo
{
Line = Encodings.Utf8.ToString(buffer.ToSpan())
});
}