290 lines
7.2 KiB
Go
290 lines
7.2 KiB
Go
package keys
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import (
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"bufio"
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"bytes"
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"errors"
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"fmt"
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"sort"
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laconicdhd "github.com/cerc-io/laconicd/crypto/hd"
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bip39 "github.com/cosmos/go-bip39"
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"github.com/spf13/cobra"
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"github.com/cosmos/cosmos-sdk/client"
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"github.com/cosmos/cosmos-sdk/client/flags"
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"github.com/cosmos/cosmos-sdk/client/input"
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"github.com/cosmos/cosmos-sdk/client/keys"
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"github.com/cosmos/cosmos-sdk/crypto/hd"
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"github.com/cosmos/cosmos-sdk/crypto/keyring"
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"github.com/cosmos/cosmos-sdk/crypto/keys/multisig"
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cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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const (
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flagInteractive = "interactive"
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flagRecover = "recover"
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flagNoBackup = "no-backup"
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flagCoinType = "coin-type"
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flagAccount = "account"
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flagIndex = "index"
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flagMultisig = "multisig"
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flagMultiSigThreshold = "multisig-threshold"
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flagNoSort = "nosort"
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flagHDPath = "hd-path"
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mnemonicEntropySize = 256
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)
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/*
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RunAddCmd
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input
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- bip39 mnemonic
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- bip39 passphrase
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- bip44 path
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- local encryption password
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output
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- armor encrypted private key (saved to file)
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*/
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func RunAddCmd(ctx client.Context, cmd *cobra.Command, args []string, inBuf *bufio.Reader) error {
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var err error
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name := args[0]
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interactive, _ := cmd.Flags().GetBool(flagInteractive)
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noBackup, _ := cmd.Flags().GetBool(flagNoBackup)
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showMnemonic := !noBackup
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kb := ctx.Keyring
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outputFormat := ctx.OutputFormat
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keyringAlgos, _ := kb.SupportedAlgorithms()
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algoStr, _ := cmd.Flags().GetString(flags.FlagKeyAlgorithm)
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algo, err := keyring.NewSigningAlgoFromString(algoStr, keyringAlgos)
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if err != nil {
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return err
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}
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if dryRun, _ := cmd.Flags().GetBool(flags.FlagDryRun); dryRun {
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// use in memory keybase
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kb = keyring.NewInMemory(ctx.Codec, laconicdhd.EthSecp256k1Option())
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} else {
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_, err = kb.Key(name)
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if err == nil {
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// account exists, ask for user confirmation
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response, err2 := input.GetConfirmation(fmt.Sprintf("override the existing name %s", name), inBuf, cmd.ErrOrStderr())
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if err2 != nil {
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return err2
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}
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if !response {
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return errors.New("aborted")
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}
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err2 = kb.Delete(name)
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if err2 != nil {
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return err2
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}
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}
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multisigKeys, _ := cmd.Flags().GetStringSlice(flagMultisig)
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if len(multisigKeys) != 0 {
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pks := make([]cryptotypes.PubKey, len(multisigKeys))
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multisigThreshold, _ := cmd.Flags().GetInt(flagMultiSigThreshold)
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if err := validateMultisigThreshold(multisigThreshold, len(multisigKeys)); err != nil {
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return err
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}
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for i, keyname := range multisigKeys {
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k, err := kb.Key(keyname)
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if err != nil {
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return err
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}
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key, err := k.GetPubKey()
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if err != nil {
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return err
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}
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pks[i] = key
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}
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if noSort, _ := cmd.Flags().GetBool(flagNoSort); !noSort {
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sort.Slice(pks, func(i, j int) bool {
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return bytes.Compare(pks[i].Address(), pks[j].Address()) < 0
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})
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}
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pk := multisig.NewLegacyAminoPubKey(multisigThreshold, pks)
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k, err := kb.SaveMultisig(name, pk)
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if err != nil {
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return err
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}
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return printCreate(cmd, k, false, "", outputFormat)
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}
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}
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pubKey, _ := cmd.Flags().GetString(keys.FlagPublicKey)
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if pubKey != "" {
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var pk cryptotypes.PubKey
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if err = ctx.Codec.UnmarshalInterfaceJSON([]byte(pubKey), &pk); err != nil {
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return err
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}
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k, err := kb.SaveOfflineKey(name, pk)
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if err != nil {
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return err
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}
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return printCreate(cmd, k, false, "", outputFormat)
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}
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coinType, _ := cmd.Flags().GetUint32(flagCoinType)
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account, _ := cmd.Flags().GetUint32(flagAccount)
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index, _ := cmd.Flags().GetUint32(flagIndex)
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hdPath, _ := cmd.Flags().GetString(flagHDPath)
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useLedger, _ := cmd.Flags().GetBool(flags.FlagUseLedger)
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if len(hdPath) == 0 {
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hdPath = hd.CreateHDPath(coinType, account, index).String()
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} else if useLedger {
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return errors.New("cannot set custom bip32 path with ledger")
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}
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// If we're using ledger, only thing we need is the path and the bech32 prefix.
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if useLedger {
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bech32PrefixAccAddr := sdk.GetConfig().GetBech32AccountAddrPrefix()
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k, err := kb.SaveLedgerKey(name, hd.Secp256k1, bech32PrefixAccAddr, coinType, account, index)
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if err != nil {
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return err
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}
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return printCreate(cmd, k, false, "", outputFormat)
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}
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// Get bip39 mnemonic
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var mnemonic, bip39Passphrase string
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recover, _ := cmd.Flags().GetBool(flagRecover)
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if recover {
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mnemonic, err = input.GetString("Enter your bip39 mnemonic", inBuf)
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if err != nil {
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return err
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}
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if !bip39.IsMnemonicValid(mnemonic) {
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return errors.New("invalid mnemonic")
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}
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} else if interactive {
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mnemonic, err = input.GetString("Enter your bip39 mnemonic, or hit enter to generate one.", inBuf)
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if err != nil {
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return err
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}
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if !bip39.IsMnemonicValid(mnemonic) && mnemonic != "" {
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return errors.New("invalid mnemonic")
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}
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}
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if len(mnemonic) == 0 {
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// read entropy seed straight from tmcrypto.Rand and convert to mnemonic
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entropySeed, err := bip39.NewEntropy(mnemonicEntropySize)
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if err != nil {
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return err
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}
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mnemonic, err = bip39.NewMnemonic(entropySeed)
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if err != nil {
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return err
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}
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}
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// override bip39 passphrase
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if interactive {
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bip39Passphrase, err = input.GetString(
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"Enter your bip39 passphrase. This is combined with the mnemonic to derive the seed. "+
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"Most users should just hit enter to use the default, \"\"", inBuf)
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if err != nil {
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return err
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}
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// if they use one, make them re-enter it
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if len(bip39Passphrase) != 0 {
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p2, err := input.GetString("Repeat the passphrase:", inBuf)
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if err != nil {
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return err
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}
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if bip39Passphrase != p2 {
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return errors.New("passphrases don't match")
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}
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}
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}
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k, err := kb.NewAccount(name, mnemonic, bip39Passphrase, hdPath, algo)
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if err != nil {
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return err
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}
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// Recover key from seed passphrase
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if recover {
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// Hide mnemonic from output
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showMnemonic = false
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mnemonic = ""
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}
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return printCreate(cmd, k, showMnemonic, mnemonic, outputFormat)
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}
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func printCreate(cmd *cobra.Command, k *keyring.Record, showMnemonic bool, mnemonic, outputFormat string) error {
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switch outputFormat {
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case OutputFormatText:
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cmd.PrintErrln()
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if err := printKeyringRecord(cmd.OutOrStdout(), k, keyring.MkAccKeyOutput, outputFormat); err != nil {
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return err
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}
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// print mnemonic unless requested not to.
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if showMnemonic {
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if _, err := fmt.Fprintf(cmd.ErrOrStderr(),
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"\n**Important** write this mnemonic phrase in a safe place.\nIt is the only way to recover your account if you ever forget your password.\n\n%s\n\n", //nolint:lll
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mnemonic); err != nil {
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return fmt.Errorf("failed to print mnemonic: %v", err)
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}
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}
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case OutputFormatJSON:
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out, err := keyring.MkAccKeyOutput(k)
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if err != nil {
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return err
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}
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if showMnemonic {
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out.Mnemonic = mnemonic
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}
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jsonString, err := keys.KeysCdc.MarshalJSON(out)
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if err != nil {
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return err
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}
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cmd.Println(string(jsonString))
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default:
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return fmt.Errorf("invalid output format %s", outputFormat)
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}
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return nil
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}
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func validateMultisigThreshold(k, nKeys int) error {
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if k <= 0 {
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return fmt.Errorf("threshold must be a positive integer")
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}
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if nKeys < k {
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return fmt.Errorf(
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"threshold k of n multisignature: %d < %d", nKeys, k)
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}
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return nil
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}
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