refactor(thumb): new thumb pipeline model to generate thumb on-demand

pkg/filesystem/driver/oss/handler.go

@@ -293,7 +293,7 @@ func (handler *Driver) Delete(ctx context.Context, files []string) ([]string, er
 }
 
 // Thumb 获取文件缩略图
-func (handler *Driver) Thumb(ctx context.Context, path string) (*response.ContentResponse, error) {
+func (handler *Driver) Thumb(ctx context.Context, file *model.File) (*response.ContentResponse, error) {
 	// 初始化客户端
 	if err := handler.InitOSSClient(true); err != nil {
 		return nil, err
@@ -312,7 +312,7 @@ func (handler *Driver) Thumb(ctx context.Context, path string) (*response.Conten
 	thumbOption := []oss.Option{oss.Process(thumbParam)}
 	thumbURL, err := handler.signSourceURL(
 		ctx,
-		path,
+		file.SourceName,
 		int64(model.GetIntSetting("preview_timeout", 60)),
 		thumbOption,
 	)