Beispiel #1
0
func addKey(e Engine, key *PublicKey) (err error) {
	// Calculate fingerprint.
	tmpPath := strings.Replace(path.Join(os.TempDir(), fmt.Sprintf("%d", time.Now().Nanosecond()),
		"id_rsa.pub"), "\\", "/", -1)
	os.MkdirAll(path.Dir(tmpPath), os.ModePerm)
	if err = ioutil.WriteFile(tmpPath, []byte(key.Content), 0644); err != nil {
		return err
	}
	stdout, stderr, err := process.Exec("AddPublicKey", "ssh-keygen", "-lf", tmpPath)
	if err != nil {
		return fmt.Errorf("'ssh-keygen -lf %s' failed with error '%s': %s", tmpPath, err, stderr)
	} else if len(stdout) < 2 {
		return errors.New("not enough output for calculating fingerprint: " + stdout)
	}
	key.Fingerprint = strings.Split(stdout, " ")[1]

	// Save SSH key.
	if _, err = e.Insert(key); err != nil {
		return err
	}

	// Don't need to rewrite this file if builtin SSH server is enabled.
	if setting.SSH.StartBuiltinServer {
		return nil
	}
	return saveAuthorizedKeyFile(key)
}
Beispiel #2
0
// SSHKeyGenParsePublicKey extracts key type and length using ssh-keygen.
func SSHKeyGenParsePublicKey(key string) (string, int, error) {
	// The ssh-keygen in Windows does not print key type, so no need go further.
	if setting.IsWindows {
		return "", 0, nil
	}

	tmpName, err := writeTmpKeyFile(key)
	if err != nil {
		return "", 0, fmt.Errorf("writeTmpKeyFile: %v", err)
	}
	defer os.Remove(tmpName)

	stdout, stderr, err := process.Exec("SSHKeyGenParsePublicKey", setting.SSH.KeygenPath, "-lf", tmpName)
	if err != nil {
		return "", 0, fmt.Errorf("Fail to parse public key: %s - %s", err, stderr)
	}
	if strings.Contains(stdout, "is not a public key file") {
		return "", 0, ErrKeyUnableVerify{stdout}
	}

	fields := strings.Split(stdout, " ")
	if len(fields) < 4 {
		return "", 0, fmt.Errorf("Invalid public key line: %s", stdout)
	}

	keyType := strings.Trim(fields[len(fields)-1], "()\r\n")
	return strings.ToLower(keyType), com.StrTo(fields[0]).MustInt(), nil
}