Function ReadProblemGPGInfoZip

common/persistence/problems/reader_zip.go:132–159

ReadProblemGPGInfoZip 读取题目携带的GPG信息(ZIP)

(problemFile string)

// ReadProblemGPGInfoZip 读取题目携带的GPG信息(ZIP)
func ReadProblemGPGInfoZip(problemFile string) (string, error) {
	zipReader, err := zip.OpenReader(problemFile)
	if err != nil {
		return "", errors.Errorf("open file (%s) error: %s", problemFile, err.Error())
	}
	defer zipReader.Close()

	file, _, err := FindInZip(zipReader, ".gpg")
	if err != nil {
		if IsFileNotFoundError(err) {
			return "", errors.Errorf("no GPG public key")
		}
		return "", err
	}

	elist, err := openpgp.ReadArmoredKeyRing(bufio.NewReader(*file))
	if err != nil {
		return "", err
	}
	if len(elist) < 1 {
		return "", errors.Errorf("GPG key error")
	}
	rel := ""
	for _, identify := range elist[0].Identities {
		rel += identify.Name + "\n"
	}
	return rel, nil
}