age/cmd/age/parse.go

// Copyright 2019 Google LLC
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd

package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"

	"github.com/FiloSottile/age/internal/age"
)

func parseRecipient(arg string) (age.Recipient, error) {
	if strings.HasPrefix(arg, "pubkey:") {
		return age.ParseX25519Recipient(arg)
	}
	return nil, fmt.Errorf("unknown recipient type: %s", arg)
}

func parseIdentitiesFile(name string) ([]age.Identity, error) {
	f, err := os.Open(name)
	if err != nil {
		return nil, fmt.Errorf("failed to open file: %v", err)
	}

	var ids []age.Identity
	scanner := bufio.NewScanner(f)
	for scanner.Scan() {
		line := scanner.Text()
		if strings.HasPrefix(line, "#") || line == "" {
			continue
		}
		i, err := age.ParseX25519Identity(line)
		if err != nil {
			return nil, fmt.Errorf("malformed secret keys file %q: %v", name, err)
		}
		ids = append(ids, i)
	}
	if err := scanner.Err(); err != nil {
		return nil, fmt.Errorf("failed to read %q: %v", name, err)
	}

	if len(ids) == 0 {
		return nil, fmt.Errorf("no secret keys found in %q", name)
	}
	return ids, nil
}