108 lines
2.0 KiB
Go
108 lines
2.0 KiB
Go
package utils
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import (
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"archive/zip"
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"io"
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"os"
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"path/filepath"
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"strings"
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)
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// ZipFiles 压缩文件
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func ZipFiles(filename string, files []string, oldForm, newForm string) error {
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newZipFile, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer newZipFile.Close()
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zipWriter := zip.NewWriter(newZipFile)
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defer zipWriter.Close()
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for _, file := range files {
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if err = addFileToZip(zipWriter, file, oldForm, newForm); err != nil {
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return err
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}
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}
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return nil
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}
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func addFileToZip(zipWriter *zip.Writer, filename, oldForm, newForm string) error {
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fileToZip, err := os.Open(filename)
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if err != nil {
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return err
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}
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defer fileToZip.Close()
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info, err := fileToZip.Stat()
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if err != nil {
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return err
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}
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header, err := zip.FileInfoHeader(info)
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if err != nil {
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return err
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}
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header.Name = strings.Replace(filename, oldForm, newForm, 1)
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header.Method = zip.Deflate
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writer, err := zipWriter.CreateHeader(header)
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if err != nil {
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return err
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}
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_, err = io.Copy(writer, fileToZip)
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return err
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}
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// Unzip 解压文件
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func Unzip(src, dest string) ([]string, error) {
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var filenames []string
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r, err := zip.OpenReader(src)
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if err != nil {
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return filenames, err
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}
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defer r.Close()
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for _, f := range r.File {
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fpath := filepath.Join(dest, f.Name)
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// 安全检查：防止路径遍历攻击
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if !strings.HasPrefix(fpath, filepath.Clean(dest)+string(os.PathSeparator)) {
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continue
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}
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filenames = append(filenames, fpath)
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if f.FileInfo().IsDir() {
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os.MkdirAll(fpath, os.ModePerm)
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continue
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}
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if err = os.MkdirAll(filepath.Dir(fpath), os.ModePerm); err != nil {
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return filenames, err
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}
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outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
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if err != nil {
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return filenames, err
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}
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rc, err := f.Open()
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if err != nil {
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outFile.Close()
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return filenames, err
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}
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_, err = io.Copy(outFile, rc)
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outFile.Close()
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rc.Close()
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if err != nil {
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return filenames, err
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}
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}
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return filenames, nil
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}
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