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+// Copyright 2016 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+ "fmt"
+ "io/ioutil"
+
+ "github.com/codegangsta/cli"
+ "github.com/ethereum/go-ethereum/accounts"
+ "github.com/ethereum/go-ethereum/cmd/utils"
+ "github.com/ethereum/go-ethereum/common"
+)
+
+var (
+ walletCommand = cli.Command{
+ Name: "wallet",
+ Usage: "ethereum presale wallet",
+ Subcommands: []cli.Command{
+ {
+ Action: importWallet,
+ Name: "import",
+ Usage: "import ethereum presale wallet",
+ },
+ },
+ Description: `
+
+ get wallet import /path/to/my/presale.wallet
+
+will prompt for your password and imports your ether presale account.
+It can be used non-interactively with the --password option taking a
+passwordfile as argument containing the wallet password in plaintext.
+
+`}
+ accountCommand = cli.Command{
+ Action: accountList,
+ Name: "account",
+ Usage: "manage accounts",
+ Description: `
+
+Manage accounts lets you create new accounts, list all existing accounts,
+import a private key into a new account.
+
+' help' shows a list of subcommands or help for one subcommand.
+
+It supports interactive mode, when you are prompted for password as well as
+non-interactive mode where passwords are supplied via a given password file.
+Non-interactive mode is only meant for scripted use on test networks or known
+safe environments.
+
+Make sure you remember the password you gave when creating a new account (with
+either new or import). Without it you are not able to unlock your account.
+
+Note that exporting your key in unencrypted format is NOT supported.
+
+Keys are stored under <DATADIR>/keys.
+It is safe to transfer the entire directory or the individual keys therein
+between ethereum nodes by simply copying.
+Make sure you backup your keys regularly.
+
+In order to use your account to send transactions, you need to unlock them using
+the '--unlock' option. The argument is a space separated list of addresses or
+indexes. If used non-interactively with a passwordfile, the file should contain
+the respective passwords one per line. If you unlock n accounts and the password
+file contains less than n entries, then the last password is meant to apply to
+all remaining accounts.
+
+And finally. DO NOT FORGET YOUR PASSWORD.
+`,
+ Subcommands: []cli.Command{
+ {
+ Action: accountList,
+ Name: "list",
+ Usage: "print account addresses",
+ },
+ {
+ Action: accountCreate,
+ Name: "new",
+ Usage: "create a new account",
+ Description: `
+
+ ethereum account new
+
+Creates a new account. Prints the address.
+
+The account is saved in encrypted format, you are prompted for a passphrase.
+
+You must remember this passphrase to unlock your account in the future.
+
+For non-interactive use the passphrase can be specified with the --password flag:
+
+ ethereum --password <passwordfile> account new
+
+Note, this is meant to be used for testing only, it is a bad idea to save your
+password to file or expose in any other way.
+ `,
+ },
+ {
+ Action: accountUpdate,
+ Name: "update",
+ Usage: "update an existing account",
+ Description: `
+
+ ethereum account update <address>
+
+Update an existing account.
+
+The account is saved in the newest version in encrypted format, you are prompted
+for a passphrase to unlock the account and another to save the updated file.
+
+This same command can therefore be used to migrate an account of a deprecated
+format to the newest format or change the password for an account.
+
+For non-interactive use the passphrase can be specified with the --password flag:
+
+ ethereum --password <passwordfile> account update <address>
+
+Since only one password can be given, only format update can be performed,
+changing your password is only possible interactively.
+ `,
+ },
+ {
+ Action: accountImport,
+ Name: "import",
+ Usage: "import a private key into a new account",
+ Description: `
+
+ ethereum account import <keyfile>
+
+Imports an unencrypted private key from <keyfile> and creates a new account.
+Prints the address.
+
+The keyfile is assumed to contain an unencrypted private key in hexadecimal format.
+
+The account is saved in encrypted format, you are prompted for a passphrase.
+
+You must remember this passphrase to unlock your account in the future.
+
+For non-interactive use the passphrase can be specified with the -password flag:
+
+ ethereum --password <passwordfile> account import <keyfile>
+
+Note:
+As you can directly copy your encrypted accounts to another ethereum instance,
+this import mechanism is not needed when you transfer an account between
+nodes.
+ `,
+ },
+ },
+ }
+)
+
+func accountList(ctx *cli.Context) {
+ accman := utils.MakeAccountManager(ctx)
+ accts, err := accman.Accounts()
+ if err != nil {
+ utils.Fatalf("Could not list accounts: %v", err)
+ }
+ for i, acct := range accts {
+ fmt.Printf("Account #%d: %x\n", i, acct)
+ }
+}
+
+// tries unlocking the specified account a few times.
+func unlockAccount(ctx *cli.Context, accman *accounts.Manager, address string, i int, passwords []string) (common.Address, string) {
+ account, err := utils.MakeAddress(accman, address)
+ if err != nil {
+ utils.Fatalf("Could not list accounts: %v", err)
+ }
+ for trials := 0; trials < 3; trials++ {
+ prompt := fmt.Sprintf("Unlocking account %s | Attempt %d/%d", address, trials+1, 3)
+ password := getPassPhrase(prompt, false, i, passwords)
+ if err := accman.Unlock(account, password); err == nil {
+ return account, password
+ }
+ }
+ // All trials expended to unlock account, bail out
+ utils.Fatalf("Failed to unlock account: %s", address)
+ return common.Address{}, ""
+}
+
+// getPassPhrase retrieves the passwor associated with an account, either fetched
+// from a list of preloaded passphrases, or requested interactively from the user.
+func getPassPhrase(prompt string, confirmation bool, i int, passwords []string) string {
+ // If a list of passwords was supplied, retrieve from them
+ if len(passwords) > 0 {
+ if i < len(passwords) {
+ return passwords[i]
+ }
+ return passwords[len(passwords)-1]
+ }
+ // Otherwise prompt the user for the password
+ fmt.Println(prompt)
+ password, err := utils.Stdin.PasswordPrompt("Passphrase: ")
+ if err != nil {
+ utils.Fatalf("Failed to read passphrase: %v", err)
+ }
+ if confirmation {
+ confirm, err := utils.Stdin.PasswordPrompt("Repeat passphrase: ")
+ if err != nil {
+ utils.Fatalf("Failed to read passphrase confirmation: %v", err)
+ }
+ if password != confirm {
+ utils.Fatalf("Passphrases do not match")
+ }
+ }
+ return password
+}
+
+// accountCreate creates a new account into the keystore defined by the CLI flags.
+func accountCreate(ctx *cli.Context) {
+ accman := utils.MakeAccountManager(ctx)
+ password := getPassPhrase("Your new account is locked with a password. Please give a password. Do not forget this password.", true, 0, utils.MakePasswordList(ctx))
+
+ account, err := accman.NewAccount(password)
+ if err != nil {
+ utils.Fatalf("Failed to create account: %v", err)
+ }
+ fmt.Printf("Address: %x\n", account)
+}
+
+// accountUpdate transitions an account from a previous format to the current
+// one, also providing the possibility to change the pass-phrase.
+func accountUpdate(ctx *cli.Context) {
+ if len(ctx.Args()) == 0 {
+ utils.Fatalf("No accounts specified to update")
+ }
+ accman := utils.MakeAccountManager(ctx)
+
+ account, oldPassword := unlockAccount(ctx, accman, ctx.Args().First(), 0, nil)
+ newPassword := getPassPhrase("Please give a new password. Do not forget this password.", true, 0, nil)
+ if err := accman.Update(account, oldPassword, newPassword); err != nil {
+ utils.Fatalf("Could not update the account: %v", err)
+ }
+}
+
+func importWallet(ctx *cli.Context) {
+ keyfile := ctx.Args().First()
+ if len(keyfile) == 0 {
+ utils.Fatalf("keyfile must be given as argument")
+ }
+ keyJson, err := ioutil.ReadFile(keyfile)
+ if err != nil {
+ utils.Fatalf("Could not read wallet file: %v", err)
+ }
+
+ accman := utils.MakeAccountManager(ctx)
+ passphrase := getPassPhrase("", false, 0, utils.MakePasswordList(ctx))
+
+ acct, err := accman.ImportPreSaleKey(keyJson, passphrase)
+ if err != nil {
+ utils.Fatalf("Could not create the account: %v", err)
+ }
+ fmt.Printf("Address: %x\n", acct)
+}
+
+func accountImport(ctx *cli.Context) {
+ keyfile := ctx.Args().First()
+ if len(keyfile) == 0 {
+ utils.Fatalf("keyfile must be given as argument")
+ }
+ accman := utils.MakeAccountManager(ctx)
+ passphrase := getPassPhrase("Your new account is locked with a password. Please give a password. Do not forget this password.", true, 0, utils.MakePasswordList(ctx))
+ acct, err := accman.Import(keyfile, passphrase)
+ if err != nil {
+ utils.Fatalf("Could not create the account: %v", err)
+ }
+ fmt.Printf("Address: %x\n", acct)
+}