Fix: able to upload empty file

pkg/filesystem/validator.go

@@ -28,12 +28,18 @@ func (fs *FileSystem) ValidateLegalName(ctx context.Context, name string) bool {
 	if len(name) >= 256 {
 		return false
 	}
+
+	// 是否为空限制
+	if len(name) == 0 {
+		return false
+	}
+
 	return true
 }
 
 // ValidateFileSize 验证上传的文件大小是否超出限制
 func (fs *FileSystem) ValidateFileSize(ctx context.Context, size uint64) bool {
-	return size <= fs.User.Policy.MaxSize
+	return size <= fs.User.Policy.MaxSize && size != 0
 }
 
 // ValidateCapacity 验证并扣除用户容量