package sevenzip
import (
"errors"
"github.com/alist-org/alist/v3/internal/archive/tool"
"github.com/alist-org/alist/v3/internal/errs"
"github.com/alist-org/alist/v3/internal/stream"
"github.com/bodgit/sevenzip"
"io"
"io/fs"
)
type WrapReader struct {
Reader *sevenzip.Reader
}
func (r *WrapReader) Files() []tool.SubFile {
ret := make([]tool.SubFile, 0, len(r.Reader.File))
for _, f := range r.Reader.File {
ret = append(ret, &WrapFile{f: f})
}
return ret
}
type WrapFile struct {
f *sevenzip.File
}
func (f *WrapFile) Name() string {
return f.f.Name
}
func (f *WrapFile) FileInfo() fs.FileInfo {
return f.f.FileInfo()
}
func (f *WrapFile) Open() (io.ReadCloser, error) {
return f.f.Open()
}
func getReader(ss []*stream.SeekableStream, password string) (*sevenzip.Reader, error) {
readerAt, err := stream.NewMultiReaderAt(ss)
if err != nil {
return nil, err
}
sr, err := sevenzip.NewReaderWithPassword(readerAt, readerAt.Size(), password)
if err != nil {
return nil, filterPassword(err)
}
return sr, nil
}
func filterPassword(err error) error {
if err != nil {
var e *sevenzip.ReadError
if errors.As(err, &e) && e.Encrypted {
return errs.WrongArchivePassword
}
}
return err
}
