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/
zip.go
135 lines (111 loc) · 2.03 KB
/
zip.go
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package runner
import (
"archive/zip"
"fmt"
"github.com/mitene/terrafire/internal/utils"
"io"
"os"
"path/filepath"
"strings"
)
func Zip(w io.Writer, dir string) error {
zw := zip.NewWriter(w)
err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
src, err := os.Open(path)
if err != nil {
return err
}
defer utils.LogDefer(src.Close)
name, err := filepath.Rel(dir, path)
if err != nil {
return err
}
header := &zip.FileHeader{
Name: name,
Method: zip.Deflate,
}
header.SetMode(info.Mode())
dst, err := zw.CreateHeader(header)
if err != nil {
return err
}
_, err = io.Copy(dst, src)
if err != nil {
return err
}
return nil
})
if err != nil {
return err
}
return zw.Close()
}
func Unzip(r io.Reader, path string) error {
buf, err := utils.TempFile()
if err != nil {
return err
}
defer utils.TempClean(buf.Name())
_, err = io.Copy(buf, r)
if err != nil {
return err
}
err = buf.Sync()
if err != nil {
return err
}
_, err = buf.Seek(0, io.SeekStart)
if err != nil {
return err
}
fi, err := os.Stat(buf.Name())
if err != nil {
return err
}
zr, err := zip.NewReader(buf, fi.Size())
if err != nil {
return err
}
for _, f := range zr.File {
err = func() error {
src, err := f.Open()
if err != nil {
return err
}
defer utils.LogDefer(src.Close)
name := filepath.Clean(f.Name)
if strings.HasPrefix(name, "..") || strings.HasPrefix(name, "/") {
return fmt.Errorf("invalid file path: %s", name)
}
fp := filepath.Join(path, f.Name)
err = os.MkdirAll(filepath.Dir(fp), 0755)
if err != nil {
return err
}
dst, err := os.Create(fp)
if err != nil {
return err
}
defer utils.LogDefer(dst.Close)
err = dst.Chmod(f.Mode())
if err != nil {
return err
}
_, err = io.Copy(dst, src)
if err != nil {
return err
}
return nil
}()
if err != nil {
return err
}
}
return nil
}