public async Task DownloadAsync(string destination, CancellationToken ct, IProgress <DataTransferProgress> progress)
{
var temp = MaskedFile.GetMaskedPathFromFile(destination);
try
{
using (var fs = new FileStream(temp, FileMode.Create, FileAccess.Write, FileShare.Delete))
using (var stream = await OpenStreamAsync())
{
var mediaStream = stream as MediaStream;
if (progress != null)
{
progress.Report(new DataTransferProgress(default(FileSize), null, default(FileSize)));
}
var buffer = new byte[4096];
var transferredBytes = 0L;
while (true)
{
var readBytes = await stream.ReadAsync(buffer, 0, buffer.Length);
transferredBytes += readBytes;
var t = new FileSize(transferredBytes);
if (progress != null && mediaStream != null)
{
progress.Report(new DataTransferProgress(t, mediaStream.Size, mediaStream.DataPerSecond));
}
if (readBytes == 0)
{
break;
}
await fs.WriteAsync(buffer, 0, readBytes);
}
#if !NET35
var m = stream as MediaStream;
if (m != null)
{
var response = await m.Manager.GetResponseAsync();
if (response != null)
{
var lm = response.Content.Headers.LastModified;
if (lm != null)
{
fs.Dispose();
File.SetLastWriteTimeUtc(temp, lm.Value.UtcDateTime);
}
}
}
#endif
}
MaskedFile.PublishMaskedFile(temp, destination);
}
finally
{
File.Delete(temp);
}
}
internal void SaveResponseInfo(HttpResponseMessage partialDownload, bool continueDownload)
{
if (partialDownload != null)
{
#if NET35
var len = partialDownload.ContentLength == -1 ? null : (long?)partialDownload.ContentLength;
#else
var len = partialDownload.Content.Headers.ContentLength;
#endif
if (len != null)
{
Size = new FileSize(len.Value);
}
// HACK: ignore content disposition in .net 35
#if !NET35
var contentDisposition = partialDownload.Content.Headers.ContentDisposition;
if (contentDisposition != null)
{
contentDispositionFileName = contentDisposition.FileName;
}
#endif
contentTypeExtension = HttpUtils.GetFileExtensionFromMime(
#if NET35
HttpUtils.GetMimeFromContentType(partialDownload.Headers["Content-Type"])
#else
partialDownload.Content.Headers.ContentType?.MediaType
#endif
);
if (continueDownload && (manager == null || !manager.IsAlive))
{
this.partialDownload = partialDownload;
manager = new MediaStreamManager(GetResponseAsync, true);
}
else
{
partialDownload.AbortAndDispose();
}
OnChanged();
}
}
public DataTransferProgress(FileSize transferredData, FileSize? total, FileSize dataPerSecond)
{
this.transferredData = transferredData;
this.total = total;
this.dataPerSecond = dataPerSecond;
}
public async Task DownloadAsync(string destination, CancellationToken ct, IProgress<DataTransferProgress> progress)
{
var temp = MaskedFile.GetMaskedPathFromFile(destination);
try
{
using (var fs = new FileStream(temp, FileMode.Create, FileAccess.Write, FileShare.Delete))
using (var stream = await OpenStreamAsync())
{
var mediaStream = stream as MediaStream;
if (progress != null) progress.Report(new DataTransferProgress(default(FileSize), null, default(FileSize)));
var buffer = new byte[4096];
var transferredBytes = 0L;
while (true)
{
var readBytes = await stream.ReadAsync(buffer, 0, buffer.Length);
transferredBytes += readBytes;
var t = new FileSize(transferredBytes);
if (progress != null && mediaStream != null) progress.Report(new DataTransferProgress(t, mediaStream.Size, mediaStream.DataPerSecond));
if (readBytes == 0)
{
break;
}
await fs.WriteAsync(buffer, 0, readBytes);
}
}
MaskedFile.PublishMaskedFile(temp, destination);
}
finally
{
File.Delete(temp);
}
}
internal void SaveResponseInfo(HttpResponseMessage partialDownload, bool continueDownload)
{
if (partialDownload != null)
{
#if NET35
var len = partialDownload.ContentLength == -1 ? null : (long?)partialDownload.ContentLength;
#else
var len = partialDownload.Content.Headers.ContentLength;
#endif
if (len != null) Size = new FileSize(len.Value);
// HACK: ignore content disposition in .net 35
#if !NET35
var contentDisposition = partialDownload.Content.Headers.ContentDisposition;
if (contentDisposition != null) contentDispositionFileName = contentDisposition.FileName;
#endif
contentTypeExtension = HttpUtils.GetFileExtensionFromMime(
#if NET35
HttpUtils.GetMimeFromContentType(partialDownload.Headers["Content-Type"])
#else
partialDownload.Content.Headers.ContentType?.MediaType
#endif
);
if (continueDownload && (manager == null || !manager.IsAlive))
{
this.partialDownload = partialDownload;
manager = new MediaStreamManager(GetResponseAsync, true);
}
else
{
partialDownload.AbortAndDispose();
}
OnChanged();
}
}
internal void SaveResponseInfo(HttpResponseMessage partialDownload, bool?continueDownload)
{
if (partialDownload != null)
{
#if NET35
var len = partialDownload.ContentLength == -1 ? null : (long?)partialDownload.ContentLength;
#else
var len = partialDownload.Content.Headers.ContentLength;
#endif
if (len != null)
{
Size = new FileSize(len.Value);
}
#if !WEBCLIENT
var lastModified = partialDownload.Content.Headers.LastModified?.UtcDateTime;
if (partialDownload.Headers.TryGetValues("Memento-Datetime", out var k))
{
if (DateTimeOffset.TryParse(k.First(), CultureInfo.InvariantCulture, DateTimeStyles.None, out var m))
{
if (lastModified == null || m.UtcDateTime < lastModified)
{
lastModified = m.UtcDateTime;
}
}
}
if (lastModified != null)
{
LastModified = lastModified;
}
#endif
// HACK: ignore content disposition in .net 35
#if !NET35
var contentDisposition = partialDownload.Content.Headers.ContentDisposition;
if (contentDisposition != null)
{
contentDispositionFileName = contentDisposition.FileName;
}
#endif
contentTypeExtension = HttpUtils.GetFileExtensionFromMime(
#if NET35
HttpUtils.GetMimeFromContentType(partialDownload.Headers["Content-Type"])
#else
partialDownload.Content.Headers.ContentType?.MediaType
#endif
);
if (continueDownload != null)
{
if (continueDownload == true && (manager == null || !manager.IsAlive))
{
this.partialDownload = partialDownload;
manager = new MediaStreamManager(GetResponseAsync, true);
}
else
{
partialDownload.AbortAndDispose();
}
}
OnChanged();
}
}
