fix(local): directory handle (#2262)

* fix(local): check symlink dir

* fix(local): set size of dir to 0 (close #2264)

drivers/local/driver.go

@@ -77,12 +77,17 @@ func (d *Local) List(ctx context.Context, dir model.Obj, args model.ListArgs) ([
 			thumb = utils.EncodePath(thumb, true)
 			thumb += "?type=thumb"
 		}
+		isFolder := f.IsDir() || isSymlinkDir(f, fullPath)
+		size := f.Size()
+		if isFolder {
+			size = 0
+		}
 		file := model.ObjThumb{
 			Object: model.Object{
 				Name:     f.Name(),
 				Modified: f.ModTime(),
-				Size:     f.Size(),
+				Size:     size,
-				IsFolder: f.IsDir(),
+				IsFolder: isFolder,
 			},
 			Thumbnail: model.Thumbnail{
 				Thumbnail: thumb,
@@ -101,12 +106,17 @@ func (d *Local) Get(ctx context.Context, path string) (model.Obj, error) {
 		}
 		return nil, err
 	}
+	isFolder := f.IsDir() || isSymlinkDir(f, path)
+	size := f.Size()
+	if isFolder {
+		size = 0
+	}
 	file := model.Object{
 		Path:     path,
 		Name:     f.Name(),
 		Modified: f.ModTime(),
-		Size:     f.Size(),
+		Size:     size,
-		IsFolder: f.IsDir(),
+		IsFolder: isFolder,
 	}
 	return &file, nil
 }

drivers/local/util.go

@@ -1 +1,22 @@
 package local
+
+import (
+	"io/fs"
+	"os"
+	"path/filepath"
+)
+
+func isSymlinkDir(f fs.FileInfo, path string) bool {
+	if f.Mode()&os.ModeSymlink == os.ModeSymlink {
+		dst, err := os.Readlink(filepath.Join(path, f.Name()))
+		if err != nil {
+			return false
+		}
+		stat, err := os.Stat(dst)
+		if err != nil {
+			return false
+		}
+		return stat.IsDir()
+	}
+	return false
+}