public async Task <MetaData> FilesAsync(string path, Stream targetStream, string rev = null, string asTeamMember = null)
{
MetaData fileMetadata = null;
HttpResponseMessage restResponse = await _requestExecuter.Execute(() => _requestGenerator.Files(_options.Root, path, rev, asTeamMember)).ConfigureAwait(false);
await _requestExecuter.CheckForError(restResponse, false).ConfigureAwait(false);
long?length = restResponse.Content.Headers.ContentLength;
if (length == null)
{
IEnumerable <string> metadatas;
if (restResponse.Headers.TryGetValues("x-dropbox-metadata", out metadatas))
{
string metadata = metadatas.FirstOrDefault();
if (metadata != null)
{
fileMetadata = JsonConvert.DeserializeObject <MetaData>(metadata);
length = fileMetadata.bytes;
}
}
}
string etag = "";
IEnumerable <string> etags;
if (restResponse.Headers.TryGetValues("etag", out etags))
{
etag = etags.FirstOrDefault();
}
long?read = 0;
do
{
long?from = read;
long?to = read + _options.ChunkSize;
if (to > length)
{
to = length;
}
restResponse =
await
_requestExecuter.Execute(() => _requestGenerator.FilesRange(_options.Root, path, from.Value, to.Value - 1, etag, rev, asTeamMember)).ConfigureAwait(false);
await restResponse.Content.CopyToAsync(targetStream).ConfigureAwait(false);
read += restResponse.Content.Headers.ContentLength;
if (read >= length)
{
break;
}
} while (restResponse.StatusCode == HttpStatusCode.PartialContent);
return(fileMetadata);
}
public async Task <MetaData> FilesAsync(string path, Stream targetStream, IProgress <MyTaskProgressReport> progress = null, string rev = null, string asTeamMember = null)
{
MetaData fileMetadata = null;
using (var restResponse = await _requestExecuter.Execute(() => _requestGenerator.Files(_options.Root, path, rev, asTeamMember)).ConfigureAwait(false))
{
await _requestExecuter.CheckForError(restResponse, false).ConfigureAwait(false);
long?length = restResponse.Content.Headers.ContentLength;
if (length == null)
{
IEnumerable <string> metadatas;
if (restResponse.Headers.TryGetValues("x-dropbox-metadata", out metadatas))
{
string metadata = metadatas.FirstOrDefault();
if (metadata != null)
{
fileMetadata = JsonConvert.DeserializeObject <MetaData>(metadata);
length = fileMetadata.bytes;
}
}
}
string etag = "";
IEnumerable <string> etags;
if (restResponse.Headers.TryGetValues("etag", out etags))
{
etag = etags.FirstOrDefault();
}
targetStream.SetLength((long)length);
long?read = 0;
bool hasMore = true;
do
{
long?from = read;
long?to = read + _options.ChunkSize;
if (to > length)
{
to = length;
}
if (from >= length)
{
break;
}
using (var restResponse2 = await _requestExecuter.Execute(() => _requestGenerator.FilesRange(_options.Root, path, from.Value, to.Value - 1, etag, rev, asTeamMember)).ConfigureAwait(false))
{
await restResponse2.Content.CopyToAsync(targetStream).ConfigureAwait(false);
read += restResponse2.Content.Headers.ContentLength;
if (progress != null)
{
progress.Report(new MyTaskProgressReport {
CurrentProgressAmount = read, TotalProgressAmount = length
});
}
if (read >= length)
{
hasMore = false;
}
else if (restResponse2.StatusCode == HttpStatusCode.OK)
{
hasMore = false;
}
}
} while (hasMore);
}
return(fileMetadata);
}