66 lines
2.9 KiB
C#
66 lines
2.9 KiB
C#
// Copyright (c) 2026 Duplicati Inc. All rights reserved.
|
|
|
|
using Duplicati.Library.Common.IO;
|
|
using Google.Apis.Drive.v3.Data;
|
|
using File = Google.Apis.Drive.v3.Data.File;
|
|
|
|
namespace Duplicati.Proprietary.GoogleWorkspace.SourceItems;
|
|
|
|
internal class DriveFileRevisionContentSourceEntry(SourceProvider provider, string parentPath, File file, Revision revision)
|
|
: StreamResourceEntryBase(SystemIO.IO_OS.PathCombine(parentPath, revision.Id), revision.ModifiedTimeDateTimeOffset.HasValue ? revision.ModifiedTimeDateTimeOffset.Value.UtcDateTime : DateTime.UnixEpoch, revision.ModifiedTimeDateTimeOffset.HasValue ? revision.ModifiedTimeDateTimeOffset.Value.UtcDateTime : DateTime.UnixEpoch)
|
|
{
|
|
public override long Size => revision.Size ?? -1;
|
|
|
|
public override async Task<Stream> OpenRead(CancellationToken cancellationToken)
|
|
{
|
|
var service = provider.ApiHelper.GetDriveService();
|
|
var url = $"https://www.googleapis.com/drive/v3/files/{file.Id}/revisions/{revision.Id}?alt=media";
|
|
|
|
if (GoogleMimeTypes.IsGoogleDoc(file.MimeType))
|
|
{
|
|
var exportMimeType = GoogleMimeTypes.GetExportMimeType(file.MimeType);
|
|
if (revision.ExportLinks != null && revision.ExportLinks.ContainsKey(exportMimeType))
|
|
{
|
|
url = revision.ExportLinks[exportMimeType];
|
|
}
|
|
else
|
|
{
|
|
// Try to construct export URL if not present?
|
|
// Or skip.
|
|
// For now, let's try the constructed URL, but it might fail for Docs.
|
|
// Actually, for Docs, we can't download via alt=media.
|
|
// If ExportLinks is missing, we might be out of luck for that revision.
|
|
if (revision.ExportLinks == null || !revision.ExportLinks.ContainsKey(exportMimeType))
|
|
{
|
|
throw new NotSupportedException($"Cannot export revision {revision.Id} for mimeType {file.MimeType}");
|
|
}
|
|
}
|
|
}
|
|
|
|
var response = await service.HttpClient.GetAsync(url, cancellationToken);
|
|
if (response.IsSuccessStatusCode)
|
|
{
|
|
var stream = new MemoryStream();
|
|
await response.Content.CopyToAsync(stream, cancellationToken);
|
|
stream.Seek(0, SeekOrigin.Begin);
|
|
return stream;
|
|
}
|
|
|
|
throw new FileNotFoundException($"Cannot download revision: {response.StatusCode}");
|
|
}
|
|
|
|
public override Task<Dictionary<string, string?>> GetMinorMetadata(CancellationToken cancellationToken)
|
|
{
|
|
return Task.FromResult(new Dictionary<string, string?>
|
|
{
|
|
{ "gsuite:v", "1" },
|
|
{ "gsuite:Type", SourceItemType.DriveFileRevision.ToString() },
|
|
{ "gsuite:Name", revision.Id },
|
|
{ "gsuite:Id", revision.Id },
|
|
{ "gsuite:MimeType", revision.MimeType }
|
|
}
|
|
.Where(kv => !string.IsNullOrEmpty(kv.Value))
|
|
.ToDictionary(kv => kv.Key, kv => kv.Value));
|
|
}
|
|
}
|