Initial implementation of Google Workspace backup.

This is a WIP and still needs the restore part implemented. Not all resources are fully tested but basic elements work.
2026-02-04 15:44:23 +01:00
parent 1b1719e924
commit da246874ec
69 changed files with 3803 additions and 3 deletions
@@ -0,0 +1,65 @@
+// Copyright (c) 2026 Duplicati Inc. All rights reserved.
+
+using System.Text.Json;
+using Duplicati.Library.Common.IO;
+
+namespace Duplicati.Proprietary.GoogleWorkspace.SourceItems;
+
+internal enum GmailSettingType
+{
+    Filters,
+    Forwarding,
+    Vacation,
+    Signatures
+}
+
+internal class GmailSettingFileSourceEntry(SourceProvider provider, string userId, string parentPath, string filename, GmailSettingType type)
+    : StreamResourceEntryBase(SystemIO.IO_OS.PathCombine(parentPath, filename), DateTime.UnixEpoch, DateTime.UnixEpoch)
+{
+    public override long Size => -1;
+
+    public override async Task<Stream> OpenRead(CancellationToken cancellationToken)
+    {
+        var service = provider.ApiHelper.GetGmailService(userId);
+        object? data = null;
+
+        switch (type)
+        {
+            case GmailSettingType.Filters:
+                var filtersReq = service.Users.Settings.Filters.List(userId);
+                data = await filtersReq.ExecuteAsync(cancellationToken);
+                break;
+            case GmailSettingType.Forwarding:
+                var forwardingReq = service.Users.Settings.ForwardingAddresses.List(userId);
+                var forwarding = await forwardingReq.ExecuteAsync(cancellationToken);
+                var autoForwardingReq = service.Users.Settings.GetAutoForwarding(userId);
+                var autoForwarding = await autoForwardingReq.ExecuteAsync(cancellationToken);
+                data = new { ForwardingAddresses = forwarding, AutoForwarding = autoForwarding };
+                break;
+            case GmailSettingType.Vacation:
+                var vacationReq = service.Users.Settings.GetVacation(userId);
+                data = await vacationReq.ExecuteAsync(cancellationToken);
+                break;
+            case GmailSettingType.Signatures:
+                var sendAsReq = service.Users.Settings.SendAs.List(userId);
+                data = await sendAsReq.ExecuteAsync(cancellationToken);
+                break;
+        }
+
+        var json = JsonSerializer.Serialize(data, new JsonSerializerOptions { WriteIndented = true });
+        return new MemoryStream(System.Text.Encoding.UTF8.GetBytes(json));
+    }
+
+    public override Task<Dictionary<string, string?>> GetMinorMetadata(CancellationToken cancellationToken)
+    {
+        return Task.FromResult(new Dictionary<string, string?>
+        {
+            { "gsuite:v", "1" },
+            { "gsuite:Type", type.ToString() },
+            { "gsuite:Name", filename },
+            { "gsuite:id", filename }
+        }
+        .Where(kv => !string.IsNullOrEmpty(kv.Value))
+        .ToDictionary(kv => kv.Key, kv => kv.Value));
+    }
+}