feat: add MoPan driver (close #4325 in #4659)

Co-authored-by: Andy Hsu <i@nn.ci>

drivers/mopan/util.go

@@ -0,0 +1,58 @@
+package mopan
+
+import (
+	"time"
+
+	"github.com/alist-org/alist/v3/internal/model"
+	"github.com/foxxorcat/mopan-sdk-go"
+)
+
+func fileToObj(f mopan.File) model.Obj {
+	return &model.ObjThumb{
+		Object: model.Object{
+			ID:       string(f.ID),
+			Name:     f.Name,
+			Size:     f.Size,
+			Modified: time.Time(f.LastOpTime),
+		},
+		Thumbnail: model.Thumbnail{
+			Thumbnail: f.Icon.SmallURL,
+		},
+	}
+}
+
+func folderToObj(f mopan.Folder) model.Obj {
+	return &model.Object{
+		ID:       string(f.ID),
+		Name:     f.Name,
+		Modified: time.Time(f.LastOpTime),
+		IsFolder: true,
+	}
+}
+
+func CloneObj(o model.Obj, newID, newName string) model.Obj {
+	if o.IsDir() {
+		return &model.Object{
+			ID:       newID,
+			Name:     newName,
+			IsFolder: true,
+			Modified: o.ModTime(),
+		}
+	}
+
+	thumb := ""
+	if o, ok := o.(model.Thumb); ok {
+		thumb = o.Thumb()
+	}
+	return &model.ObjThumb{
+		Object: model.Object{
+			ID:       newID,
+			Name:     newName,
+			Size:     o.GetSize(),
+			Modified: o.ModTime(),
+		},
+		Thumbnail: model.Thumbnail{
+			Thumbnail: thumb,
+		},
+	}
+}