public override void Redirect()
{
while (true)
{
var gotSignal = _signal.WaitOne(0);
if (gotSignal)
{
break; // bye
}
_sourceStream.ReadInnerStream(20);
var crlfIndex = _sourceStream.PeekIndexOf(CoreHelper.CrLfBytes);
if (crlfIndex == -1)
{
throw this.CreateException();
}
int byteCountToRead;
int byteCountActuallyRead;
var offset = 0;
var totalByteCountRead = 0;
// read hex length
byteCountToRead = crlfIndex;
byteCountActuallyRead = _sourceStream.Read(_sourceBuffer.Raw, offset, byteCountToRead);
if (byteCountToRead != byteCountActuallyRead)
{
throw this.CreateException();
}
totalByteCountRead += byteCountToRead;
offset += byteCountToRead;
var lengthOfChunk = _sourceBuffer.Raw.ToAsciiString(0, byteCountActuallyRead).ToIn32FromHex();
if (lengthOfChunk == 0)
{
// end of chunked content. should read <crlf><crlf> and exit
byteCountToRead = CoreHelper.CrLfCrLfBytes.Length;
byteCountActuallyRead = _sourceStream.Read(_sourceBuffer.Raw, offset, byteCountToRead);
if (byteCountActuallyRead != byteCountToRead)
{
throw new BadHttpDataException(); // todo2[ak]
}
totalByteCountRead += byteCountToRead;
offset += byteCountToRead;
if (!CoreHelper.ByteArraysEquivalent(
_sourceBuffer.Raw,
1,
CoreHelper.CrLfCrLfBytes,
0,
CoreHelper.CrLfCrLfBytes.Length))
{
throw this.CreateException();
}
_destinationStream.Write(_sourceBuffer.Raw, 0, totalByteCountRead);
break;
}
// read crlf
byteCountToRead = CoreHelper.CrLfBytes.Length;
byteCountActuallyRead = _sourceStream.Read(_sourceBuffer.Raw, offset, byteCountToRead);
if (byteCountToRead != byteCountActuallyRead)
{
throw this.CreateException();
}
totalByteCountRead += byteCountToRead;
offset += byteCountToRead;
// send length and crlf to destination
_destinationStream.Write(_sourceBuffer.Raw, 0, totalByteCountRead);
// redirect chunk
CoreHelper.RedirectStream(_signal, _sourceStream, _destinationStream, _sourceBuffer.Raw, lengthOfChunk);
// read crlf
byteCountToRead = CoreHelper.CrLfBytes.Length;
byteCountActuallyRead = _sourceStream.Read(_sourceBuffer.Raw, 0, byteCountToRead);
if (byteCountToRead != byteCountActuallyRead)
{
throw this.CreateException();
}
if (!CoreHelper.ByteArraysEquivalent(
_sourceBuffer.Raw,
0,
CoreHelper.CrLfBytes,
0,
CoreHelper.CrLfBytes.Length))
{
throw this.CreateException();
}
_destinationStream.Write(_sourceBuffer.Raw, 0, byteCountActuallyRead);
}
}