public SeekableHttpStream(HttpWebRequest httpWebRequest, long page = DEFAULT_PAGE_LENGTH, int maxpages = DEFAULT_MAX_PAGE_COUNT)
{
_originalHttpWebRequest = httpWebRequest;
_metadata = new MetaData()
{
PageSize = page,
MaxPages = maxpages,
};
var initialHttpWebRequest = httpWebRequest.CloneRequest(_originalHttpWebRequest.RequestUri);
var m = initialHttpWebRequest.GetResponseAsync().GetAwaiter().GetResult() as HttpWebResponse;
if (m.ContentLength < 1)
{
throw new NotSupportedException("SeekableHttpStream needs a ContentLength in the HTTP response");
}
_metadata.Length = m.ContentLength;
_metadata.HTTPeTag = m.Headers[HttpResponseHeader.ETag];
m.Close();
}
