private async Task copyBodyAsync(bool isRequest, bool useOriginalHeaderValues, HttpWriter writer, TransformationMode transformation, Action <byte[], int, int> onCopy, CancellationToken cancellationToken)
{
var stream = getStreamReader(isRequest);
var requestResponse = isRequest ? (RequestResponseBase)WebSession.Request : WebSession.Response;
bool isChunked = useOriginalHeaderValues? requestResponse.OriginalIsChunked : requestResponse.IsChunked;
long contentLength = useOriginalHeaderValues ? requestResponse.OriginalContentLength : requestResponse.ContentLength;
if (transformation == TransformationMode.None)
{
await writer.CopyBodyAsync(stream, isChunked, contentLength, onCopy, cancellationToken);
return;
}
LimitedStream limitedStream;
Stream decompressStream = null;
string contentEncoding = useOriginalHeaderValues ? requestResponse.OriginalContentEncoding : requestResponse.ContentEncoding;
Stream s = limitedStream = new LimitedStream(stream, bufferPool, isChunked, contentLength);
if (transformation == TransformationMode.Uncompress && contentEncoding != null)
{
s = decompressStream = DecompressionFactory.Create(contentEncoding, s);
}
try
{
using (var bufStream = new CustomBufferedStream(s, bufferPool, bufferSize, true))
{
await writer.CopyBodyAsync(bufStream, false, -1, onCopy, cancellationToken);
}
}
finally
{
decompressStream?.Dispose();
await limitedStream.Finish();
limitedStream.Dispose();
}
}