public static HttpRequest EnableRewind(this HttpRequest request, int bufferThreshold = DefaultBufferThreshold, long?bufferLimit = null)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
var body = request.Body;
if (!body.CanSeek)
{
var fileStream = new FileBufferingReadStream(body, bufferThreshold, bufferLimit, _getTempDirectory);
if (request.ContentLength.HasValue && request.ContentLength > 0)
{
fileStream.SetLength(request.ContentLength.Value);
}
request.Body = fileStream;
request.HttpContext.Response.RegisterForDispose(fileStream);
}
return(request);
}