storage

type DefaultDownloadStorage struct {
	*DefaultStorage
	// contains filtered or unexported fields
}

type DefaultStorage struct {
	BasePath string
}

type DefaultUploadStorage struct {
	*DefaultStorage
}

type DownloadBefore func(info DownloadFileInfoer)

type DownloadFileInfoer interface {
	// Size 文件大小
	Size() int64
	// Filename 文件名
	Filename() string
	// Metadata 获取元数据
	Metadata() Metadata
}

type DownloadStorager interface {
	Downloader
	DispositionType() string
}

type Downloader interface {
	Download(ctx context.Context, write io.Writer, filename string) (info DownloadFileInfoer, err error)
}

type Exister interface {
	Exist(ctx context.Context, filename string) (exist bool, err error)
}

type Metadata map[string]string

type RangeRequest struct {
	Start int64 // 开始字节位置（包含），从0开始。如果<0，表示读取最后-Start个字节（Suffix Range）
	End   int64 // 结束字节位置（包含），<0表示到文件末尾
}

type Remover interface {
	Remove(ctx context.Context, filename string) (err error)
}

type Rename func(filename string) string

type Storager interface {
	Uploader
	Downloader
	Remover
	Exister
}

type UploadFileInfoer interface {
	// FullName 完整的文件名
	// 包含路径
	FullName() string
	// Filename 文件名
	Filename() string
	// Size 文件大小
	Size() int64
	// Header 获取MIMEHeader
	Header() textproto.MIMEHeader
}

type UploadStorager interface {
	Uploader
	MaxMemory() int64
}

type Uploader interface {
	Upload(ctx context.Context, read io.Reader, filename string) (fullName string, err error)
}