public static async Task<Stream> CopyStreamWithProgress(
Stream source,
Stream destination,
IProgress<MediaFireOperationProgress> progress,
CancellationToken token,
MediaFireOperationProgress progressData,
int bufferSize
)
{
int read, offset = 0;
var buffer = new byte[bufferSize];
using (source)
{
do
{
read = await source.ReadAsync(buffer, 0, bufferSize, token);
await destination.WriteAsync(buffer, 0, read, token);
offset += read;
progressData.CurrentSize = offset;
progress.Report(progressData);
} while (read != 0);
}
return destination;
}
public async Task Download(string quickKey, Stream destination, CancellationToken token, IProgress<MediaFireOperationProgress> progress = null)
{
var links = await GetLinks(quickKey, MediaFireLinkType.DirectDownload);
if (links.Count != 0 && string.IsNullOrEmpty(links[0].DirectDownload))
throw new MediaFireException(MediaFireErrorMessages.FileMustContainADirectLink);
var fileLink = links[0].DirectDownload;
if (progress == null)
progress = new Progress<MediaFireOperationProgress>();
var cli = new HttpClient();
var resp = await cli.SendAsync(new HttpRequestMessage(HttpMethod.Get, fileLink), HttpCompletionOption.ResponseHeadersRead, token);
resp.EnsureSuccessStatusCode();
var stream = await resp.Content.ReadAsStreamAsync();
var progressData = new MediaFireOperationProgress
{
TotalSize = resp.Content.Headers.ContentLength.Value
};
using (destination)
{
await
MediaFireHttpHelpers.CopyStreamWithProgress(stream, destination, progress, token, progressData,
_agent.Configuration.ChunkTransferBufferSize);
}
}