private async Task <ChunkedUploadResponse> UploadChunk(Stream stream, ChunkedUploadResponse lastResponse, CancellationToken cancellationToken)
{
if (lastResponse == null)
{
throw new ArgumentNullException("lastResponse");
}
var offset = lastResponse.Offset;
var uploadId = lastResponse.UploadId;
var request = MakeChunkedUploadPutRequest(offset, uploadId);
var buffer = new byte[ChunkSize];
stream.Seek(lastResponse.Offset, SeekOrigin.Begin);
var contentSize = stream.Read(buffer, 0, ChunkSize);
if (contentSize == 0)
{
// Nothing left to send
return(null);
}
HttpContent content = new ByteArrayContent(buffer, 0, contentSize);
try
{
var response = await _httpClient.PutAsync(request.RequestUri, content, cancellationToken);
if (response.StatusCode != HttpStatusCode.OK)
{
throw new DropboxException(response);
}
var body = await response.Content.ReadAsStringAsync();
return(JsonConvert.DeserializeObject <ChunkedUploadResponse>(body));
}
catch (AggregateException)
{
throw;
}
catch (DropboxException)
{
throw;
}
catch (Exception ex)
{
throw new DropboxException(ex);
}
}
private async Task <ChunkedUploadResponse> UploadChunk(Stream stream, ChunkedUploadResponse lastResponse, CancellationToken cancellationToken)
{
return(await UploadChunk(stream, ChunkSize, lastResponse, cancellationToken));
}
