/
wallet_create.go
270 lines (256 loc) · 8.72 KB
/
wallet_create.go
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package accounts
import (
"context"
"encoding/json"
"fmt"
"os"
"strings"
"github.com/manifoldco/promptui"
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/cmd/validator/flags"
"github.com/prysmaticlabs/prysm/io/prompt"
"github.com/prysmaticlabs/prysm/validator/accounts/iface"
"github.com/prysmaticlabs/prysm/validator/accounts/userprompt"
"github.com/prysmaticlabs/prysm/validator/accounts/wallet"
"github.com/prysmaticlabs/prysm/validator/keymanager"
"github.com/prysmaticlabs/prysm/validator/keymanager/derived"
"github.com/prysmaticlabs/prysm/validator/keymanager/imported"
"github.com/prysmaticlabs/prysm/validator/keymanager/remote"
"github.com/urfave/cli/v2"
)
// CreateWalletConfig defines the parameters needed to call the create wallet functions.
type CreateWalletConfig struct {
SkipMnemonicConfirm bool
NumAccounts int
RemoteKeymanagerOpts *remote.KeymanagerOpts
WalletCfg *wallet.Config
Mnemonic25thWord string
}
// CreateAndSaveWalletCli from user input with a desired keymanager. If a
// wallet already exists in the path, it suggests the user alternatives
// such as how to edit their existing wallet configuration.
func CreateAndSaveWalletCli(cliCtx *cli.Context) (*wallet.Wallet, error) {
keymanagerKind, err := extractKeymanagerKindFromCli(cliCtx)
if err != nil {
return nil, err
}
createWalletConfig, err := extractWalletCreationConfigFromCli(cliCtx, keymanagerKind)
if err != nil {
return nil, err
}
dir := createWalletConfig.WalletCfg.WalletDir
dirExists, err := wallet.Exists(dir)
if err != nil {
return nil, err
}
if dirExists {
return nil, errors.New("a wallet already exists at this location. Please input an" +
" alternative location for the new wallet or remove the current wallet")
}
w, err := CreateWalletWithKeymanager(cliCtx.Context, createWalletConfig)
if err != nil {
return nil, errors.Wrap(err, "could not create wallet")
}
return w, nil
}
// CreateWalletWithKeymanager specified by configuration options.
func CreateWalletWithKeymanager(ctx context.Context, cfg *CreateWalletConfig) (*wallet.Wallet, error) {
w := wallet.New(&wallet.Config{
WalletDir: cfg.WalletCfg.WalletDir,
KeymanagerKind: cfg.WalletCfg.KeymanagerKind,
WalletPassword: cfg.WalletCfg.WalletPassword,
})
var err error
switch w.KeymanagerKind() {
case keymanager.Imported:
if err = createImportedKeymanagerWallet(ctx, w); err != nil {
return nil, errors.Wrap(err, "could not initialize wallet")
}
km, err := w.InitializeKeymanager(ctx, iface.InitKeymanagerConfig{ListenForChanges: false})
if err != nil {
return nil, errors.Wrap(err, ErrCouldNotInitializeKeymanager)
}
importedKm, ok := km.(*imported.Keymanager)
if !ok {
return nil, errors.Wrap(err, ErrCouldNotInitializeKeymanager)
}
accountsKeystore, err := importedKm.CreateAccountsKeystore(ctx, make([][]byte, 0), make([][]byte, 0))
if err != nil {
return nil, err
}
encodedAccounts, err := json.MarshalIndent(accountsKeystore, "", "\t")
if err != nil {
return nil, err
}
if err = w.WriteFileAtPath(ctx, imported.AccountsPath, imported.AccountsKeystoreFileName, encodedAccounts); err != nil {
return nil, err
}
log.WithField("--wallet-dir", cfg.WalletCfg.WalletDir).Info(
"Successfully created wallet with ability to import keystores",
)
case keymanager.Derived:
if err = createDerivedKeymanagerWallet(
ctx,
w,
cfg.Mnemonic25thWord,
cfg.SkipMnemonicConfirm,
cfg.NumAccounts,
); err != nil {
return nil, errors.Wrap(err, "could not initialize wallet")
}
log.WithField("--wallet-dir", cfg.WalletCfg.WalletDir).Info(
"Successfully created HD wallet from mnemonic and regenerated accounts",
)
case keymanager.Remote:
if err = createRemoteKeymanagerWallet(ctx, w, cfg.RemoteKeymanagerOpts); err != nil {
return nil, errors.Wrap(err, "could not initialize wallet")
}
log.WithField("--wallet-dir", cfg.WalletCfg.WalletDir).Info(
"Successfully created wallet with remote keymanager configuration",
)
default:
return nil, errors.Wrapf(err, errKeymanagerNotSupported, w.KeymanagerKind())
}
return w, nil
}
func extractKeymanagerKindFromCli(cliCtx *cli.Context) (keymanager.Kind, error) {
return inputKeymanagerKind(cliCtx)
}
func extractWalletCreationConfigFromCli(cliCtx *cli.Context, keymanagerKind keymanager.Kind) (*CreateWalletConfig, error) {
walletDir, err := userprompt.InputDirectory(cliCtx, userprompt.WalletDirPromptText, flags.WalletDirFlag)
if err != nil {
return nil, err
}
walletPassword, err := prompt.InputPassword(
cliCtx,
flags.WalletPasswordFileFlag,
wallet.NewWalletPasswordPromptText,
wallet.ConfirmPasswordPromptText,
true, /* Should confirm password */
prompt.ValidatePasswordInput,
)
if err != nil {
return nil, err
}
createWalletConfig := &CreateWalletConfig{
WalletCfg: &wallet.Config{
WalletDir: walletDir,
KeymanagerKind: keymanagerKind,
WalletPassword: walletPassword,
},
SkipMnemonicConfirm: cliCtx.Bool(flags.SkipDepositConfirmationFlag.Name),
}
skipMnemonic25thWord := cliCtx.IsSet(flags.SkipMnemonic25thWordCheckFlag.Name)
has25thWordFile := cliCtx.IsSet(flags.Mnemonic25thWordFileFlag.Name)
if keymanagerKind == keymanager.Derived {
numAccounts, err := inputNumAccounts(cliCtx)
if err != nil {
return nil, errors.Wrap(err, "could not get number of accounts to generate")
}
createWalletConfig.NumAccounts = int(numAccounts)
}
if keymanagerKind == keymanager.Derived && !skipMnemonic25thWord && !has25thWordFile {
resp, err := prompt.ValidatePrompt(
os.Stdin, newMnemonicPassphraseYesNoText, prompt.ValidateYesOrNo,
)
if err != nil {
return nil, errors.Wrap(err, "could not validate choice")
}
if strings.EqualFold(resp, "y") {
mnemonicPassphrase, err := prompt.InputPassword(
cliCtx,
flags.Mnemonic25thWordFileFlag,
newMnemonicPassphrasePromptText,
"Confirm mnemonic passphrase",
true, /* Should confirm password */
func(input string) error {
if strings.TrimSpace(input) == "" {
return errors.New("input cannot be empty")
}
return nil
},
)
if err != nil {
return nil, err
}
createWalletConfig.Mnemonic25thWord = mnemonicPassphrase
}
}
if keymanagerKind == keymanager.Remote {
opts, err := userprompt.InputRemoteKeymanagerConfig(cliCtx)
if err != nil {
return nil, errors.Wrap(err, "could not input remote keymanager config")
}
createWalletConfig.RemoteKeymanagerOpts = opts
}
return createWalletConfig, nil
}
func createImportedKeymanagerWallet(_ context.Context, wallet *wallet.Wallet) error {
if wallet == nil {
return errors.New("nil wallet")
}
if err := wallet.SaveWallet(); err != nil {
return errors.Wrap(err, "could not save wallet to disk")
}
return nil
}
func createDerivedKeymanagerWallet(
ctx context.Context,
wallet *wallet.Wallet,
mnemonicPassphrase string,
skipMnemonicConfirm bool,
numAccounts int,
) error {
if wallet == nil {
return errors.New("nil wallet")
}
if err := wallet.SaveWallet(); err != nil {
return errors.Wrap(err, "could not save wallet to disk")
}
km, err := derived.NewKeymanager(ctx, &derived.SetupConfig{
Wallet: wallet,
ListenForChanges: true,
})
if err != nil {
return errors.Wrap(err, "could not initialize HD keymanager")
}
mnemonic, err := derived.GenerateAndConfirmMnemonic(skipMnemonicConfirm)
if err != nil {
return errors.Wrap(err, "could not confirm mnemonic")
}
if err := km.RecoverAccountsFromMnemonic(ctx, mnemonic, mnemonicPassphrase, numAccounts); err != nil {
return errors.Wrap(err, "could not recover accounts from mnemonic")
}
return nil
}
func createRemoteKeymanagerWallet(ctx context.Context, wallet *wallet.Wallet, opts *remote.KeymanagerOpts) error {
keymanagerConfig, err := remote.MarshalOptionsFile(ctx, opts)
if err != nil {
return errors.Wrap(err, "could not marshal config file")
}
if err := wallet.SaveWallet(); err != nil {
return errors.Wrap(err, "could not save wallet to disk")
}
if err := wallet.WriteKeymanagerConfigToDisk(ctx, keymanagerConfig); err != nil {
return errors.Wrap(err, "could not write keymanager config to disk")
}
return nil
}
func inputKeymanagerKind(cliCtx *cli.Context) (keymanager.Kind, error) {
if cliCtx.IsSet(flags.KeymanagerKindFlag.Name) {
return keymanager.ParseKind(cliCtx.String(flags.KeymanagerKindFlag.Name))
}
promptSelect := promptui.Select{
Label: "Select a type of wallet",
Items: []string{
wallet.KeymanagerKindSelections[keymanager.Imported],
wallet.KeymanagerKindSelections[keymanager.Derived],
wallet.KeymanagerKindSelections[keymanager.Remote],
},
}
selection, _, err := promptSelect.Run()
if err != nil {
return keymanager.Imported, fmt.Errorf("could not select wallet type: %w", userprompt.FormatPromptError(err))
}
return keymanager.Kind(selection), nil
}