run-seed.go

// SPDX-License-Identifier: ISC
// Copyright (c) 2014-2019 Bitmark Inc.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.

package main

import (
	"fmt"
	"strings"

	"github.com/urfave/cli"

	"github.com/bitmark-inc/bitmarkd/account"
	"github.com/bitmark-inc/bitmarkd/command/bitmark-cli/configuration"
)

// merge the account string to private data
type seedResult struct {
	*configuration.Private
	Name    string `json:"name"`
	Account string `json:"account"`
	Phrase  string `json:"recovery_phrase"`
}

// to decrypt and show the secret data
func runSeed(c *cli.Context) error {

	m := c.App.Metadata["config"].(*metadata)

	name, owner, err := checkOwnerWithPasswordPrompt(c.GlobalString("identity"), m.config, c)
	if nil != err {
		return err
	}

	phrase, err := account.Base58EncodedSeedToPhrase(owner.Seed)
	if nil != err {
		return err
	}

	if c.Bool("recovery") {
		fmt.Printf("recovery phrase:\n%s", prettyPhrase(phrase))
		return nil
	}

	result := seedResult{
		Private: owner,
		Name:    name,
		Account: owner.PrivateKey.Account().String(),
		Phrase:  strings.Join(phrase, " "),
	}

	printJson(m.w, result)
	return nil
}

// convert slice of string phrase to pretty string format
func prettyPhrase(phrase []string) string {
	var builder strings.Builder

	for i, p := range phrase {
		builder.WriteString(p)
		breakline := (i+1)%6 == 0
		if breakline {
			builder.WriteString("\n")
		} else if i < len(phrase)-1 {
			builder.WriteString(" ")
		}
	}

	return builder.String()
}