Feat: file upload handler

pkg/filesystem/errors.go

@@ -0,0 +1,10 @@
+package filesystem
+
+import "errors"
+
+var (
+	UnknownPolicyTypeError       = errors.New("未知存储策略类型")
+	FileSizeTooBigError          = errors.New("单个文件尺寸太大")
+	FileExtensionNotAllowedError = errors.New("不允许上传此类型的文件")
+	InsufficientCapacityError    = errors.New("容量空间不足")
+)