feat(dashboard): traverse file URI from file ID (#2412)

pkg/filemanager/fs/dbfs/dbfs.go

@@ -450,7 +450,7 @@ func (f *DBFS) Get(ctx context.Context, path *fs.URI, opts ...fs.Option) (fs.Fil
 		return nil, fmt.Errorf("failed to get target file: %w", err)
 	}
 
-	if o.notRoot && target.IsRootFolder() {
+	if o.notRoot && (target == nil || target.IsRootFolder()) {
 		return nil, fs.ErrNotSupportedAction.WithError(fmt.Errorf("cannot operate root file"))
 	}
 

pkg/filemanager/fs/dbfs/manage.go

@@ -641,6 +641,40 @@ func (f *DBFS) GetFileFromDirectLink(ctx context.Context, dl *ent.DirectLink) (f
 	return file, nil
 }
 
+func (f *DBFS) TraverseFile(ctx context.Context, fileID int) (fs.File, error) {
+	fileModel, err := f.fileClient.GetByID(ctx, fileID)
+	if err != nil {
+		return nil, err
+	}
+
+	if fileModel.OwnerID != f.user.ID && !f.user.Edges.Group.Permissions.Enabled(int(types.GroupPermissionIsAdmin)) {
+		return nil, fs.ErrOwnerOnly.WithError(fmt.Errorf("only file owner can traverse file's uri"))
+	}
+
+	file := newFile(nil, fileModel)
+
+	// Traverse to the root file
+	baseNavigator := newBaseNavigator(f.fileClient, defaultFilter, f.user, f.hasher, f.settingClient.DBFS(ctx))
+	root, err := baseNavigator.findRoot(ctx, file)
+	if err != nil {
+		return nil, fmt.Errorf("failed to find root file: %w", err)
+	}
+
+	rootUri := newMyUri()
+	if fileModel.OwnerID != f.user.ID {
+		rootUri = newMyIDUri(hashid.EncodeUserID(f.hasher, fileModel.OwnerID))
+	}
+
+	if root.Name() != inventory.RootFolderName {
+		rootUri = newTrashUri(root.Name())
+	}
+
+	root.Path[pathIndexRoot] = rootUri
+	root.Path[pathIndexUser] = rootUri
+
+	return file, nil
+}
+
 func (f *DBFS) deleteEntity(ctx context.Context, target *File, entityId int) (inventory.StorageDiff, error) {
 	if target.PrimaryEntityID() == entityId {
 		return nil, fs.ErrNotSupportedAction.WithError(fmt.Errorf("cannot delete current version"))

pkg/filemanager/fs/fs.go

@@ -95,6 +95,8 @@ type (
 		VersionControl(ctx context.Context, path *URI, versionId int, delete bool) error
 		// GetFileFromDirectLink gets a file from a direct link.
 		GetFileFromDirectLink(ctx context.Context, dl *ent.DirectLink) (File, error)
+		// TraverseFile traverses a file to its root file, return the file with linked root.
+		TraverseFile(ctx context.Context, fileID int) (File, error)
 	}
 
 	UploadManager interface {