public PackageStatusResponse GetPackageStatusResponse(Hash[] packageIds)
{
var packages = new PackageStatusDetail[packageIds.Length];
for (int i = 0; i < packageIds.Length; i++)
{
var detail = new PackageStatusDetail();
Hash id = packageIds[i];
packages[i] = detail;
if (!packageRegistry.TryGetPackage(id, out LocalPackageInfo info) || info.LockProvider.IsMarkedToDelete)
{
detail.IsFound = false;
continue;
}
// found
detail.IsFound = true;
detail.BytesDownloaded = info.DownloadStatus.Data.DownloadedBytes;
detail.SegmentsBitmap = info.DownloadStatus.Data.SegmentsBitmap;
}
var result = new PackageStatusResponse()
{
Packages = packages
};
return(result);
}
/// <summary>
/// Throws exception if given status detail is invalid for package represented by this instance. This can happen only if data has been manipulated.
/// </summary>
public void ValidateStatusUpdateFromPeer(PackageStatusDetail detail)
{
if (detail == null)
{
throw new InvalidOperationException("Detail is NULL.");
}
if (!detail.IsFound)
{
throw new InvalidOperationException("Detail is invalid. It is marked as not found.");
}
if (detail.BytesDownloaded < 0 || detail.BytesDownloaded > sequenceInfo.PackageSize)
{
throw new InvalidOperationException("Invalid bytes downloaded counter. Value is out of range.");
}
if (detail.BytesDownloaded == sequenceInfo.PackageSize && detail.SegmentsBitmap != null)
{
throw new InvalidOperationException("Invalid bitmap. Bitmap should be NULL if package is already downloaded.");
}
if (detail.BytesDownloaded < sequenceInfo.PackageSize && detail.SegmentsBitmap == null)
{
throw new InvalidOperationException("Invalid bitmap. Bitmap should NOT be NULL if package is not yet downloaded.");
}
if (detail.SegmentsBitmap != null && detail.SegmentsBitmap.Length != dto.SegmentsBitmap.Length)
{
throw new InvalidOperationException("Invalid bitmap. Invalid bitmap length.");
}
if (detail.SegmentsBitmap != null && detail.SegmentsBitmap.Length > 0 && (byte)(detail.SegmentsBitmap[detail.SegmentsBitmap.Length - 1] & ~lastByteMask) != 0)
{
throw new InvalidOperationException("Invalid bitmap. Last bitmap byte is out of range.");
}
}