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accounts, cmd, eth, internal, mobile, node: split account backends

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This commit is contained in:
Péter Szilágyi
2017-01-24 11:49:20 +02:00
parent 564b60520c
commit 833e4d1319
47 changed files with 1068 additions and 688 deletions
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4
accounts/abi/bind/auth.go
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@ -22,7 +22,7 @@ import (
"io"
"io/ioutil"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
@ -35,7 +35,7 @@ func NewTransactor(keyin io.Reader, passphrase string) (*TransactOpts, error) {
if err != nil {
return nil, err
}
key, err := accounts.DecryptKey(json, passphrase)
key, err := keystore.DecryptKey(json, passphrase)
if err != nil {
return nil, err
}

350
accounts/account_manager.go
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@ -1,350 +0,0 @@
// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package accounts implements encrypted storage of secp256k1 private keys.
//
// Keys are stored as encrypted JSON files according to the Web3 Secret Storage specification.
// See https://github.com/ethereum/wiki/wiki/Web3-Secret-Storage-Definition for more information.
package accounts
import (
"crypto/ecdsa"
crand "crypto/rand"
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"runtime"
"sync"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
)
var (
ErrLocked = errors.New("account is locked")
ErrNoMatch = errors.New("no key for given address or file")
ErrDecrypt = errors.New("could not decrypt key with given passphrase")
)
// Account represents a stored key.
// When used as an argument, it selects a unique key file to act on.
type Account struct {
Address common.Address // Ethereum account address derived from the key
// File contains the key file name.
// When Acccount is used as an argument to select a key, File can be left blank to
// select just by address or set to the basename or absolute path of a file in the key
// directory. Accounts returned by Manager will always contain an absolute path.
File string
}
func (acc *Account) MarshalJSON() ([]byte, error) {
return []byte(`"` + acc.Address.Hex() + `"`), nil
}
func (acc *Account) UnmarshalJSON(raw []byte) error {
return json.Unmarshal(raw, &acc.Address)
}
// Manager manages a key storage directory on disk.
type Manager struct {
cache *addrCache
keyStore keyStore
mu sync.RWMutex
unlocked map[common.Address]*unlocked
}
type unlocked struct {
*Key
abort chan struct{}
}
// NewManager creates a manager for the given directory.
func NewManager(keydir string, scryptN, scryptP int) *Manager {
keydir, _ = filepath.Abs(keydir)
am := &Manager{keyStore: &keyStorePassphrase{keydir, scryptN, scryptP}}
am.init(keydir)
return am
}
// NewPlaintextManager creates a manager for the given directory.
// Deprecated: Use NewManager.
func NewPlaintextManager(keydir string) *Manager {
keydir, _ = filepath.Abs(keydir)
am := &Manager{keyStore: &keyStorePlain{keydir}}
am.init(keydir)
return am
}
func (am *Manager) init(keydir string) {
am.unlocked = make(map[common.Address]*unlocked)
am.cache = newAddrCache(keydir)
// TODO: In order for this finalizer to work, there must be no references
// to am. addrCache doesn't keep a reference but unlocked keys do,
// so the finalizer will not trigger until all timed unlocks have expired.
runtime.SetFinalizer(am, func(m *Manager) {
m.cache.close()
})
}
// HasAddress reports whether a key with the given address is present.
func (am *Manager) HasAddress(addr common.Address) bool {
return am.cache.hasAddress(addr)
}
// Accounts returns all key files present in the directory.
func (am *Manager) Accounts() []Account {
return am.cache.accounts()
}
// Delete deletes the key matched by account if the passphrase is correct.
// If the account contains no filename, the address must match a unique key.
func (am *Manager) Delete(a Account, passphrase string) error {
// Decrypting the key isn't really necessary, but we do
// it anyway to check the password and zero out the key
// immediately afterwards.
a, key, err := am.getDecryptedKey(a, passphrase)
if key != nil {
zeroKey(key.PrivateKey)
}
if err != nil {
return err
}
// The order is crucial here. The key is dropped from the
// cache after the file is gone so that a reload happening in
// between won't insert it into the cache again.
err = os.Remove(a.File)
if err == nil {
am.cache.delete(a)
}
return err
}
// Sign calculates a ECDSA signature for the given hash. The produced signature
// is in the [R || S || V] format where V is 0 or 1.
func (am *Manager) Sign(addr common.Address, hash []byte) ([]byte, error) {
am.mu.RLock()
defer am.mu.RUnlock()
unlockedKey, found := am.unlocked[addr]
if !found {
return nil, ErrLocked
}
return crypto.Sign(hash, unlockedKey.PrivateKey)
}
// SignWithPassphrase signs hash if the private key matching the given address
// can be decrypted with the given passphrase. The produced signature is in the
// [R || S || V] format where V is 0 or 1.
func (am *Manager) SignWithPassphrase(a Account, passphrase string, hash []byte) (signature []byte, err error) {
_, key, err := am.getDecryptedKey(a, passphrase)
if err != nil {
return nil, err
}
defer zeroKey(key.PrivateKey)
return crypto.Sign(hash, key.PrivateKey)
}
// Unlock unlocks the given account indefinitely.
func (am *Manager) Unlock(a Account, passphrase string) error {
return am.TimedUnlock(a, passphrase, 0)
}
// Lock removes the private key with the given address from memory.
func (am *Manager) Lock(addr common.Address) error {
am.mu.Lock()
if unl, found := am.unlocked[addr]; found {
am.mu.Unlock()
am.expire(addr, unl, time.Duration(0)*time.Nanosecond)
} else {
am.mu.Unlock()
}
return nil
}
// TimedUnlock unlocks the given account with the passphrase. The account
// stays unlocked for the duration of timeout. A timeout of 0 unlocks the account
// until the program exits. The account must match a unique key file.
//
// If the account address is already unlocked for a duration, TimedUnlock extends or
// shortens the active unlock timeout. If the address was previously unlocked
// indefinitely the timeout is not altered.
func (am *Manager) TimedUnlock(a Account, passphrase string, timeout time.Duration) error {
a, key, err := am.getDecryptedKey(a, passphrase)
if err != nil {
return err
}
am.mu.Lock()
defer am.mu.Unlock()
u, found := am.unlocked[a.Address]
if found {
if u.abort == nil {
// The address was unlocked indefinitely, so unlocking
// it with a timeout would be confusing.
zeroKey(key.PrivateKey)
return nil
} else {
// Terminate the expire goroutine and replace it below.
close(u.abort)
}
}
if timeout > 0 {
u = &unlocked{Key: key, abort: make(chan struct{})}
go am.expire(a.Address, u, timeout)
} else {
u = &unlocked{Key: key}
}
am.unlocked[a.Address] = u
return nil
}
// Find resolves the given account into a unique entry in the keystore.
func (am *Manager) Find(a Account) (Account, error) {
am.cache.maybeReload()
am.cache.mu.Lock()
a, err := am.cache.find(a)
am.cache.mu.Unlock()
return a, err
}
func (am *Manager) getDecryptedKey(a Account, auth string) (Account, *Key, error) {
a, err := am.Find(a)
if err != nil {
return a, nil, err
}
key, err := am.keyStore.GetKey(a.Address, a.File, auth)
return a, key, err
}
func (am *Manager) expire(addr common.Address, u *unlocked, timeout time.Duration) {
t := time.NewTimer(timeout)
defer t.Stop()
select {
case <-u.abort:
// just quit
case <-t.C:
am.mu.Lock()
// only drop if it's still the same key instance that dropLater
// was launched with. we can check that using pointer equality
// because the map stores a new pointer every time the key is
// unlocked.
if am.unlocked[addr] == u {
zeroKey(u.PrivateKey)
delete(am.unlocked, addr)
}
am.mu.Unlock()
}
}
// NewAccount generates a new key and stores it into the key directory,
// encrypting it with the passphrase.
func (am *Manager) NewAccount(passphrase string) (Account, error) {
_, account, err := storeNewKey(am.keyStore, crand.Reader, passphrase)
if err != nil {
return Account{}, err
}
// Add the account to the cache immediately rather
// than waiting for file system notifications to pick it up.
am.cache.add(account)
return account, nil
}
// AccountByIndex returns the ith account.
func (am *Manager) AccountByIndex(i int) (Account, error) {
accounts := am.Accounts()
if i < 0 || i >= len(accounts) {
return Account{}, fmt.Errorf("account index %d out of range [0, %d]", i, len(accounts)-1)
}
return accounts[i], nil
}
// Export exports as a JSON key, encrypted with newPassphrase.
func (am *Manager) Export(a Account, passphrase, newPassphrase string) (keyJSON []byte, err error) {
_, key, err := am.getDecryptedKey(a, passphrase)
if err != nil {
return nil, err
}
var N, P int
if store, ok := am.keyStore.(*keyStorePassphrase); ok {
N, P = store.scryptN, store.scryptP
} else {
N, P = StandardScryptN, StandardScryptP
}
return EncryptKey(key, newPassphrase, N, P)
}
// Import stores the given encrypted JSON key into the key directory.
func (am *Manager) Import(keyJSON []byte, passphrase, newPassphrase string) (Account, error) {
key, err := DecryptKey(keyJSON, passphrase)
if key != nil && key.PrivateKey != nil {
defer zeroKey(key.PrivateKey)
}
if err != nil {
return Account{}, err
}
return am.importKey(key, newPassphrase)
}
// ImportECDSA stores the given key into the key directory, encrypting it with the passphrase.
func (am *Manager) ImportECDSA(priv *ecdsa.PrivateKey, passphrase string) (Account, error) {
key := newKeyFromECDSA(priv)
if am.cache.hasAddress(key.Address) {
return Account{}, fmt.Errorf("account already exists")
}
return am.importKey(key, passphrase)
}
func (am *Manager) importKey(key *Key, passphrase string) (Account, error) {
a := Account{Address: key.Address, File: am.keyStore.JoinPath(keyFileName(key.Address))}
if err := am.keyStore.StoreKey(a.File, key, passphrase); err != nil {
return Account{}, err
}
am.cache.add(a)
return a, nil
}
// Update changes the passphrase of an existing account.
func (am *Manager) Update(a Account, passphrase, newPassphrase string) error {
a, key, err := am.getDecryptedKey(a, passphrase)
if err != nil {
return err
}
return am.keyStore.StoreKey(a.File, key, newPassphrase)
}
// ImportPreSaleKey decrypts the given Ethereum presale wallet and stores
// a key file in the key directory. The key file is encrypted with the same passphrase.
func (am *Manager) ImportPreSaleKey(keyJSON []byte, passphrase string) (Account, error) {
a, _, err := importPreSaleKey(am.keyStore, keyJSON, passphrase)
if err != nil {
return a, err
}
am.cache.add(a)
return a, nil
}
// zeroKey zeroes a private key in memory.
func zeroKey(k *ecdsa.PrivateKey) {
b := k.D.Bits()
for i := range b {
b[i] = 0
}
}

179
accounts/accounts.go Normal file
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@ -0,0 +1,179 @@
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package accounts implements high level Ethereum account management.
package accounts
import (
"encoding/json"
"errors"
"math/big"
"reflect"
"sync"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
// ErrUnknownAccount is returned for any requested operation for which no backend
// provides the specified account.
var ErrUnknownAccount = errors.New("unknown account")
// ErrNotSupported is returned when an operation is requested from an account
// backend that it does not support.
var ErrNotSupported = errors.New("not supported")
// Account represents a stored key.
// When used as an argument, it selects a unique key to act on.
type Account struct {
Address common.Address // Ethereum account address derived from the key
URL string // Optional resource locator within a backend
backend Backend // Backend where this account originates from
}
func (acc *Account) MarshalJSON() ([]byte, error) {
return []byte(`"` + acc.Address.Hex() + `"`), nil
}
func (acc *Account) UnmarshalJSON(raw []byte) error {
return json.Unmarshal(raw, &acc.Address)
}
// Manager is an overarching account manager that can communicate with various
// backends for signing transactions.
type Manager struct {
backends []Backend // List of currently registered backends (ordered by registration)
index map[reflect.Type]Backend // Set of currently registered backends
lock sync.RWMutex
}
// NewManager creates a generic account manager to sign transaction via various
// supported backends.
func NewManager(backends ...Backend) *Manager {
am := &Manager{
backends: backends,
index: make(map[reflect.Type]Backend),
}
for _, backend := range backends {
am.index[reflect.TypeOf(backend)] = backend
}
return am
}
// Backend retrieves the backend with the given type from the account manager.
func (am *Manager) Backend(backend reflect.Type) Backend {
return am.index[backend]
}
// Accounts returns all signer accounts registered under this account manager.
func (am *Manager) Accounts() []Account {
am.lock.RLock()
defer am.lock.RUnlock()
var all []Account
for _, backend := range am.backends { // TODO(karalabe): cache these after subscriptions are in
accounts := backend.Accounts()
for i := 0; i < len(accounts); i++ {
accounts[i].backend = backend
}
all = append(all, accounts...)
}
return all
}
// HasAddress reports whether a key with the given address is present.
func (am *Manager) HasAddress(addr common.Address) bool {
am.lock.RLock()
defer am.lock.RUnlock()
for _, backend := range am.backends {
if backend.HasAddress(addr) {
return true
}
}
return false
}
// SignHash requests the account manager to get the hash signed with an arbitrary
// signing backend holding the authorization for the specified account.
func (am *Manager) SignHash(acc Account, hash []byte) ([]byte, error) {
am.lock.RLock()
defer am.lock.RUnlock()
if err := am.ensureBackend(&acc); err != nil {
return nil, err
}
return acc.backend.SignHash(acc, hash)
}
// SignTx requests the account manager to get the transaction signed with an
// arbitrary signing backend holding the authorization for the specified account.
func (am *Manager) SignTx(acc Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
am.lock.RLock()
defer am.lock.RUnlock()
if err := am.ensureBackend(&acc); err != nil {
return nil, err
}
return acc.backend.SignTx(acc, tx, chainID)
}
// SignHashWithPassphrase requests the account manager to get the hash signed with
// an arbitrary signing backend holding the authorization for the specified account.
func (am *Manager) SignHashWithPassphrase(acc Account, passphrase string, hash []byte) ([]byte, error) {
am.lock.RLock()
defer am.lock.RUnlock()
if err := am.ensureBackend(&acc); err != nil {
return nil, err
}
return acc.backend.SignHashWithPassphrase(acc, passphrase, hash)
}
// SignTxWithPassphrase requests the account manager to get the transaction signed
// with an arbitrary signing backend holding the authorization for the specified
// account.
func (am *Manager) SignTxWithPassphrase(acc Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
am.lock.RLock()
defer am.lock.RUnlock()
if err := am.ensureBackend(&acc); err != nil {
return nil, err
}
return acc.backend.SignTxWithPassphrase(acc, passphrase, tx, chainID)
}
// ensureBackend ensures that the account has a correctly set backend and that
// it is still alive.
//
// Please note, this method assumes the manager lock is held!
func (am *Manager) ensureBackend(acc *Account) error {
// If we have a backend, make sure it's still live
if acc.backend != nil {
if _, exists := am.index[reflect.TypeOf(acc.backend)]; !exists {
return ErrUnknownAccount
}
return nil
}
// If we don't have a known backend, look up one that can service it
for _, backend := range am.backends {
if backend.HasAddress(acc.Address) { // TODO(karalabe): this assumes unique addresses per backend
acc.backend = backend
return nil
}
}
return ErrUnknownAccount
}

88
accounts/backend.go Normal file
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@ -0,0 +1,88 @@
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
// Backend is an "account provider" that can specify a batch of accounts it can
// sign transactions with and upon request, do so.
type Backend interface {
// Accounts retrieves the list of signing accounts the backend is currently aware of.
Accounts() []Account
// HasAddress reports whether an account with the given address is present.
HasAddress(addr common.Address) bool
// SignHash requests the backend to sign the given hash.
//
// It looks up the account specified either solely via its address contained within,
// or optionally with the aid of any location metadata from the embedded URL field.
//
// If the backend requires additional authentication to sign the request (e.g.
// a password to decrypt the account, or a PIN code o verify the transaction),
// an AuthNeededError instance will be returned, containing infos for the user
// about which fields or actions are needed. The user may retry by providing
// the needed details via SignHashWithPassphrase, or by other means (e.g. unlock
// the account in a keystore).
SignHash(acc Account, hash []byte) ([]byte, error)
// SignTx requests the backend to sign the given transaction.
//
// It looks up the account specified either solely via its address contained within,
// or optionally with the aid of any location metadata from the embedded URL field.
//
// If the backend requires additional authentication to sign the request (e.g.
// a password to decrypt the account, or a PIN code o verify the transaction),
// an AuthNeededError instance will be returned, containing infos for the user
// about which fields or actions are needed. The user may retry by providing
// the needed details via SignTxWithPassphrase, or by other means (e.g. unlock
// the account in a keystore).
SignTx(acc Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error)
// SignHashWithPassphrase requests the backend to sign the given transaction with
// the given passphrase as extra authentication information.
//
// It looks up the account specified either solely via its address contained within,
// or optionally with the aid of any location metadata from the embedded URL field.
SignHashWithPassphrase(acc Account, passphrase string, hash []byte) ([]byte, error)
// SignTxWithPassphrase requests the backend to sign the given transaction, with the
// given passphrase as extra authentication information.
//
// It looks up the account specified either solely via its address contained within,
// or optionally with the aid of any location metadata from the embedded URL field.
SignTxWithPassphrase(acc Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error)
// TODO(karalabe,fjl): watching and caching needs the Go subscription system
// Watch requests the backend to send a notification to the specified channel whenever
// an new account appears or an existing one disappears.
//Watch(chan AccountEvent) error
// Unwatch requests the backend stop sending notifications to the given channel.
//Unwatch(chan AccountEvent) error
}
// TODO(karalabe,fjl): watching and caching needs the Go subscription system
// type AccountEvent struct {
// Account Account
// Added bool
// }

41
accounts/errors.go Normal file
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@ -0,0 +1,41 @@
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
import "fmt"
// AuthNeededError is returned by backends for signing requests where the user
// is required to provide further authentication before signing can succeed.
//
// This usually means either that a password needs to be supplied, or perhaps a
// one time PIN code displayed by some hardware device.
type AuthNeededError struct {
Needed string // Extra authentication the user needs to provide
}
// NewAuthNeededError creates a new authentication error with the extra details
// about the needed fields set.
func NewAuthNeededError(needed string) error {
return &AuthNeededError{
Needed: needed,
}
}
// Error implements the standard error interfacel.
func (err *AuthNeededError) Error() string {
return fmt.Sprintf("authentication needed: %s", err.Needed)
}

71
accounts/addrcache.go → accounts/keystore/address_cache.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"bufio"
@ -28,6 +28,7 @@ import (
"sync"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
@ -38,23 +39,23 @@ import (
// exist yet, the code will attempt to create a watcher at most this often.
const minReloadInterval = 2 * time.Second
type accountsByFile []Account
type accountsByFile []accounts.Account
func (s accountsByFile) Len() int { return len(s) }
func (s accountsByFile) Less(i, j int) bool { return s[i].File < s[j].File }
func (s accountsByFile) Less(i, j int) bool { return s[i].URL < s[j].URL }
func (s accountsByFile) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// AmbiguousAddrError is returned when attempting to unlock
// an address for which more than one file exists.
type AmbiguousAddrError struct {
Addr common.Address
Matches []Account
Matches []accounts.Account
}
func (err *AmbiguousAddrError) Error() string {
files := ""
for i, a := range err.Matches {
files += a.File
files += a.URL
if i < len(err.Matches)-1 {
files += ", "
}
@ -62,58 +63,58 @@ func (err *AmbiguousAddrError) Error() string {
return fmt.Sprintf("multiple keys match address (%s)", files)
}
// addrCache is a live index of all accounts in the keystore.
type addrCache struct {
// addressCache is a live index of all accounts in the keystore.
type addressCache struct {
keydir string
watcher *watcher
mu sync.Mutex
all accountsByFile
byAddr map[common.Address][]Account
byAddr map[common.Address][]accounts.Account
throttle *time.Timer
}
func newAddrCache(keydir string) *addrCache {
ac := &addrCache{
func newAddrCache(keydir string) *addressCache {
ac := &addressCache{
keydir: keydir,
byAddr: make(map[common.Address][]Account),
byAddr: make(map[common.Address][]accounts.Account),
}
ac.watcher = newWatcher(ac)
return ac
}
func (ac *addrCache) accounts() []Account {
func (ac *addressCache) accounts() []accounts.Account {
ac.maybeReload()
ac.mu.Lock()
defer ac.mu.Unlock()
cpy := make([]Account, len(ac.all))
cpy := make([]accounts.Account, len(ac.all))
copy(cpy, ac.all)
return cpy
}
func (ac *addrCache) hasAddress(addr common.Address) bool {
func (ac *addressCache) hasAddress(addr common.Address) bool {
ac.maybeReload()
ac.mu.Lock()
defer ac.mu.Unlock()
return len(ac.byAddr[addr]) > 0
}
func (ac *addrCache) add(newAccount Account) {
func (ac *addressCache) add(newAccount accounts.Account) {
ac.mu.Lock()
defer ac.mu.Unlock()
i := sort.Search(len(ac.all), func(i int) bool { return ac.all[i].File >= newAccount.File })
i := sort.Search(len(ac.all), func(i int) bool { return ac.all[i].URL >= newAccount.URL })
if i < len(ac.all) && ac.all[i] == newAccount {
return
}
// newAccount is not in the cache.
ac.all = append(ac.all, Account{})
ac.all = append(ac.all, accounts.Account{})
copy(ac.all[i+1:], ac.all[i:])
ac.all[i] = newAccount
ac.byAddr[newAccount.Address] = append(ac.byAddr[newAccount.Address], newAccount)
}
// note: removed needs to be unique here (i.e. both File and Address must be set).
func (ac *addrCache) delete(removed Account) {
func (ac *addressCache) delete(removed accounts.Account) {
ac.mu.Lock()
defer ac.mu.Unlock()
ac.all = removeAccount(ac.all, removed)
@ -124,7 +125,7 @@ func (ac *addrCache) delete(removed Account) {
}
}
func removeAccount(slice []Account, elem Account) []Account {
func removeAccount(slice []accounts.Account, elem accounts.Account) []accounts.Account {
for i := range slice {
if slice[i] == elem {
return append(slice[:i], slice[i+1:]...)
@ -134,41 +135,41 @@ func removeAccount(slice []Account, elem Account) []Account {
}
// find returns the cached account for address if there is a unique match.
// The exact matching rules are explained by the documentation of Account.
// The exact matching rules are explained by the documentation of accounts.Account.
// Callers must hold ac.mu.
func (ac *addrCache) find(a Account) (Account, error) {
func (ac *addressCache) find(a accounts.Account) (accounts.Account, error) {
// Limit search to address candidates if possible.
matches := ac.all
if (a.Address != common.Address{}) {
matches = ac.byAddr[a.Address]
}
if a.File != "" {
if a.URL != "" {
// If only the basename is specified, complete the path.
if !strings.ContainsRune(a.File, filepath.Separator) {
a.File = filepath.Join(ac.keydir, a.File)
if !strings.ContainsRune(a.URL, filepath.Separator) {
a.URL = filepath.Join(ac.keydir, a.URL)
}
for i := range matches {
if matches[i].File == a.File {
if matches[i].URL == a.URL {
return matches[i], nil
}
}
if (a.Address == common.Address{}) {
return Account{}, ErrNoMatch
return accounts.Account{}, ErrNoMatch
}
}
switch len(matches) {
case 1:
return matches[0], nil
case 0:
return Account{}, ErrNoMatch
return accounts.Account{}, ErrNoMatch
default:
err := &AmbiguousAddrError{Addr: a.Address, Matches: make([]Account, len(matches))}
err := &AmbiguousAddrError{Addr: a.Address, Matches: make([]accounts.Account, len(matches))}
copy(err.Matches, matches)
return Account{}, err
return accounts.Account{}, err
}
}
func (ac *addrCache) maybeReload() {
func (ac *addressCache) maybeReload() {
ac.mu.Lock()
defer ac.mu.Unlock()
if ac.watcher.running {
@ -188,7 +189,7 @@ func (ac *addrCache) maybeReload() {
ac.throttle.Reset(minReloadInterval)
}
func (ac *addrCache) close() {
func (ac *addressCache) close() {
ac.mu.Lock()
ac.watcher.close()
if ac.throttle != nil {
@ -199,7 +200,7 @@ func (ac *addrCache) close() {
// reload caches addresses of existing accounts.
// Callers must hold ac.mu.
func (ac *addrCache) reload() {
func (ac *addressCache) reload() {
accounts, err := ac.scan()
if err != nil && glog.V(logger.Debug) {
glog.Errorf("can't load keys: %v", err)
@ -215,7 +216,7 @@ func (ac *addrCache) reload() {
glog.V(logger.Debug).Infof("reloaded keys, cache has %d accounts", len(ac.all))
}
func (ac *addrCache) scan() ([]Account, error) {
func (ac *addressCache) scan() ([]accounts.Account, error) {
files, err := ioutil.ReadDir(ac.keydir)
if err != nil {
return nil, err
@ -223,7 +224,7 @@ func (ac *addrCache) scan() ([]Account, error) {
var (
buf = new(bufio.Reader)
addrs []Account
addrs []accounts.Account
keyJSON struct {
Address string `json:"address"`
}
@ -250,7 +251,7 @@ func (ac *addrCache) scan() ([]Account, error) {
case (addr == common.Address{}):
glog.V(logger.Debug).Infof("can't decode key %s: missing or zero address", path)
default:
addrs = append(addrs, Account{Address: addr, File: path})
addrs = append(addrs, accounts.Account{Address: addr, URL: path})
}
fd.Close()
}

107
accounts/addrcache_test.go → accounts/keystore/address_cache_test.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"fmt"
@ -28,23 +28,24 @@ import (
"github.com/cespare/cp"
"github.com/davecgh/go-spew/spew"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
)
var (
cachetestDir, _ = filepath.Abs(filepath.Join("testdata", "keystore"))
cachetestAccounts = []Account{
cachetestAccounts = []accounts.Account{
{
Address: common.HexToAddress("7ef5a6135f1fd6a02593eedc869c6d41d934aef8"),
File: filepath.Join(cachetestDir, "UTC--2016-03-22T12-57-55.920751759Z--7ef5a6135f1fd6a02593eedc869c6d41d934aef8"),
URL: filepath.Join(cachetestDir, "UTC--2016-03-22T12-57-55.920751759Z--7ef5a6135f1fd6a02593eedc869c6d41d934aef8"),
},
{
Address: common.HexToAddress("f466859ead1932d743d622cb74fc058882e8648a"),
File: filepath.Join(cachetestDir, "aaa"),
URL: filepath.Join(cachetestDir, "aaa"),
},
{
Address: common.HexToAddress("289d485d9771714cce91d3393d764e1311907acc"),
File: filepath.Join(cachetestDir, "zzz"),
URL: filepath.Join(cachetestDir, "zzz"),
},
}
)
@ -52,7 +53,7 @@ var (
func TestWatchNewFile(t *testing.T) {
t.Parallel()
dir, am := tmpManager(t, false)
dir, am := tmpKeyStore(t, false)
defer os.RemoveAll(dir)
// Ensure the watcher is started before adding any files.
@ -60,18 +61,18 @@ func TestWatchNewFile(t *testing.T) {
time.Sleep(200 * time.Millisecond)
// Move in the files.
wantAccounts := make([]Account, len(cachetestAccounts))
wantAccounts := make([]accounts.Account, len(cachetestAccounts))
for i := range cachetestAccounts {
a := cachetestAccounts[i]
a.File = filepath.Join(dir, filepath.Base(a.File))
a.URL = filepath.Join(dir, filepath.Base(a.URL))
wantAccounts[i] = a
if err := cp.CopyFile(a.File, cachetestAccounts[i].File); err != nil {
if err := cp.CopyFile(a.URL, cachetestAccounts[i].URL); err != nil {
t.Fatal(err)
}
}
// am should see the accounts.
var list []Account
var list []accounts.Account
for d := 200 * time.Millisecond; d < 5*time.Second; d *= 2 {
list = am.Accounts()
if reflect.DeepEqual(list, wantAccounts) {
@ -88,7 +89,7 @@ func TestWatchNoDir(t *testing.T) {
// Create am but not the directory that it watches.
rand.Seed(time.Now().UnixNano())
dir := filepath.Join(os.TempDir(), fmt.Sprintf("eth-keystore-watch-test-%d-%d", os.Getpid(), rand.Int()))
am := NewManager(dir, LightScryptN, LightScryptP)
am := NewKeyStore(dir, LightScryptN, LightScryptP)
list := am.Accounts()
if len(list) > 0 {
@ -100,13 +101,13 @@ func TestWatchNoDir(t *testing.T) {
os.MkdirAll(dir, 0700)
defer os.RemoveAll(dir)
file := filepath.Join(dir, "aaa")
if err := cp.CopyFile(file, cachetestAccounts[0].File); err != nil {
if err := cp.CopyFile(file, cachetestAccounts[0].URL); err != nil {
t.Fatal(err)
}
// am should see the account.
wantAccounts := []Account{cachetestAccounts[0]}
wantAccounts[0].File = file
wantAccounts := []accounts.Account{cachetestAccounts[0]}
wantAccounts[0].URL = file
for d := 200 * time.Millisecond; d < 8*time.Second; d *= 2 {
list = am.Accounts()
if reflect.DeepEqual(list, wantAccounts) {
@ -129,52 +130,52 @@ func TestCacheAddDeleteOrder(t *testing.T) {
cache := newAddrCache("testdata/no-such-dir")
cache.watcher.running = true // prevent unexpected reloads
accounts := []Account{
accs := []accounts.Account{
{
Address: common.HexToAddress("095e7baea6a6c7c4c2dfeb977efac326af552d87"),
File: "-309830980",
URL: "-309830980",
},
{
Address: common.HexToAddress("2cac1adea150210703ba75ed097ddfe24e14f213"),
File: "ggg",
URL: "ggg",
},
{
Address: common.HexToAddress("8bda78331c916a08481428e4b07c96d3e916d165"),
File: "zzzzzz-the-very-last-one.keyXXX",
URL: "zzzzzz-the-very-last-one.keyXXX",
},
{
Address: common.HexToAddress("d49ff4eeb0b2686ed89c0fc0f2b6ea533ddbbd5e"),
File: "SOMETHING.key",
URL: "SOMETHING.key",
},
{
Address: common.HexToAddress("7ef5a6135f1fd6a02593eedc869c6d41d934aef8"),
File: "UTC--2016-03-22T12-57-55.920751759Z--7ef5a6135f1fd6a02593eedc869c6d41d934aef8",
URL: "UTC--2016-03-22T12-57-55.920751759Z--7ef5a6135f1fd6a02593eedc869c6d41d934aef8",
},
{
Address: common.HexToAddress("f466859ead1932d743d622cb74fc058882e8648a"),
File: "aaa",
URL: "aaa",
},
{
Address: common.HexToAddress("289d485d9771714cce91d3393d764e1311907acc"),
File: "zzz",
URL: "zzz",
},
}
for _, a := range accounts {
for _, a := range accs {
cache.add(a)
}
// Add some of them twice to check that they don't get reinserted.
cache.add(accounts[0])
cache.add(accounts[2])
cache.add(accs[0])
cache.add(accs[2])
// Check that the account list is sorted by filename.
wantAccounts := make([]Account, len(accounts))
copy(wantAccounts, accounts)
wantAccounts := make([]accounts.Account, len(accs))
copy(wantAccounts, accs)
sort.Sort(accountsByFile(wantAccounts))
list := cache.accounts()
if !reflect.DeepEqual(list, wantAccounts) {
t.Fatalf("got accounts: %s\nwant %s", spew.Sdump(accounts), spew.Sdump(wantAccounts))
t.Fatalf("got accounts: %s\nwant %s", spew.Sdump(accs), spew.Sdump(wantAccounts))
}
for _, a := range accounts {
for _, a := range accs {
if !cache.hasAddress(a.Address) {
t.Errorf("expected hasAccount(%x) to return true", a.Address)
}
@ -184,13 +185,13 @@ func TestCacheAddDeleteOrder(t *testing.T) {
}
// Delete a few keys from the cache.
for i := 0; i < len(accounts); i += 2 {
for i := 0; i < len(accs); i += 2 {
cache.delete(wantAccounts[i])
}
cache.delete(Account{Address: common.HexToAddress("fd9bd350f08ee3c0c19b85a8e16114a11a60aa4e"), File: "something"})
cache.delete(accounts.Account{Address: common.HexToAddress("fd9bd350f08ee3c0c19b85a8e16114a11a60aa4e"), URL: "something"})
// Check content again after deletion.
wantAccountsAfterDelete := []Account{
wantAccountsAfterDelete := []accounts.Account{
wantAccounts[1],
wantAccounts[3],
wantAccounts[5],
@ -214,60 +215,60 @@ func TestCacheFind(t *testing.T) {
cache := newAddrCache(dir)
cache.watcher.running = true // prevent unexpected reloads
accounts := []Account{
accs := []accounts.Account{
{
Address: common.HexToAddress("095e7baea6a6c7c4c2dfeb977efac326af552d87"),
File: filepath.Join(dir, "a.key"),
URL: filepath.Join(dir, "a.key"),
},
{
Address: common.HexToAddress("2cac1adea150210703ba75ed097ddfe24e14f213"),
File: filepath.Join(dir, "b.key"),
URL: filepath.Join(dir, "b.key"),
},
{
Address: common.HexToAddress("d49ff4eeb0b2686ed89c0fc0f2b6ea533ddbbd5e"),
File: filepath.Join(dir, "c.key"),
URL: filepath.Join(dir, "c.key"),
},
{
Address: common.HexToAddress("d49ff4eeb0b2686ed89c0fc0f2b6ea533ddbbd5e"),
File: filepath.Join(dir, "c2.key"),
URL: filepath.Join(dir, "c2.key"),
},
}
for _, a := range accounts {
for _, a := range accs {
cache.add(a)
}
nomatchAccount := Account{
nomatchAccount := accounts.Account{
Address: common.HexToAddress("f466859ead1932d743d622cb74fc058882e8648a"),
File: filepath.Join(dir, "something"),
URL: filepath.Join(dir, "something"),
}
tests := []struct {
Query Account
WantResult Account
Query accounts.Account
WantResult accounts.Account
WantError error
}{
// by address
{Query: Account{Address: accounts[0].Address}, WantResult: accounts[0]},
{Query: accounts.Account{Address: accs[0].Address}, WantResult: accs[0]},
// by file
{Query: Account{File: accounts[0].File}, WantResult: accounts[0]},
{Query: accounts.Account{URL: accs[0].URL}, WantResult: accs[0]},
// by basename
{Query: Account{File: filepath.Base(accounts[0].File)}, WantResult: accounts[0]},
{Query: accounts.Account{URL: filepath.Base(accs[0].URL)}, WantResult: accs[0]},
// by file and address
{Query: accounts[0], WantResult: accounts[0]},
{Query: accs[0], WantResult: accs[0]},
// ambiguous address, tie resolved by file
{Query: accounts[2], WantResult: accounts[2]},
{Query: accs[2], WantResult: accs[2]},
// ambiguous address error
{
Query: Account{Address: accounts[2].Address},
Query: accounts.Account{Address: accs[2].Address},
WantError: &AmbiguousAddrError{
Addr: accounts[2].Address,
Matches: []Account{accounts[2], accounts[3]},
Addr: accs[2].Address,
Matches: []accounts.Account{accs[2], accs[3]},
},
},
// no match error
{Query: nomatchAccount, WantError: ErrNoMatch},
{Query: Account{File: nomatchAccount.File}, WantError: ErrNoMatch},
{Query: Account{File: filepath.Base(nomatchAccount.File)}, WantError: ErrNoMatch},
{Query: Account{Address: nomatchAccount.Address}, WantError: ErrNoMatch},
{Query: accounts.Account{URL: nomatchAccount.URL}, WantError: ErrNoMatch},
{Query: accounts.Account{URL: filepath.Base(nomatchAccount.URL)}, WantError: ErrNoMatch},
{Query: accounts.Account{Address: nomatchAccount.Address}, WantError: ErrNoMatch},
}
for i, test := range tests {
a, err := cache.find(test.Query)

11
accounts/key.go → accounts/keystore/key.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"bytes"
@ -29,6 +29,7 @@ import (
"strings"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/crypto/secp256k1"
@ -175,13 +176,13 @@ func newKey(rand io.Reader) (*Key, error) {
return newKeyFromECDSA(privateKeyECDSA), nil
}
func storeNewKey(ks keyStore, rand io.Reader, auth string) (*Key, Account, error) {
func storeNewKey(ks keyStore, rand io.Reader, auth string) (*Key, accounts.Account, error) {
key, err := newKey(rand)
if err != nil {
return nil, Account{}, err
return nil, accounts.Account{}, err
}
a := Account{Address: key.Address, File: ks.JoinPath(keyFileName(key.Address))}
if err := ks.StoreKey(a.File, key, auth); err != nil {
a := accounts.Account{Address: key.Address, URL: ks.JoinPath(keyFileName(key.Address))}
if err := ks.StoreKey(a.URL, key, auth); err != nil {
zeroKey(key.PrivateKey)
return nil, a, err
}

362
accounts/keystore/keystore.go Normal file
View File

@ -0,0 +1,362 @@
// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package keystore implements encrypted storage of secp256k1 private keys.
//
// Keys are stored as encrypted JSON files according to the Web3 Secret Storage specification.
// See https://github.com/ethereum/wiki/wiki/Web3-Secret-Storage-Definition for more information.
package keystore
import (
"crypto/ecdsa"
crand "crypto/rand"
"errors"
"fmt"
"math/big"
"os"
"path/filepath"
"reflect"
"runtime"
"sync"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
)
var (
ErrNeedPasswordOrUnlock = accounts.NewAuthNeededError("password or unlock")
ErrNoMatch = errors.New("no key for given address or file")
ErrDecrypt = errors.New("could not decrypt key with given passphrase")
)
// BackendType can be used to query the account manager for encrypted keystores.
var BackendType = reflect.TypeOf(new(KeyStore))
// KeyStore manages a key storage directory on disk.
type KeyStore struct {
cache *addressCache
keyStore keyStore
mu sync.RWMutex
unlocked map[common.Address]*unlocked
}
type unlocked struct {
*Key
abort chan struct{}
}
// NewKeyStore creates a keystore for the given directory.
func NewKeyStore(keydir string, scryptN, scryptP int) *KeyStore {
keydir, _ = filepath.Abs(keydir)
ks := &KeyStore{keyStore: &keyStorePassphrase{keydir, scryptN, scryptP}}
ks.init(keydir)
return ks
}
// NewPlaintextKeyStore creates a keystore for the given directory.
// Deprecated: Use NewKeyStore.
func NewPlaintextKeyStore(keydir string) *KeyStore {
keydir, _ = filepath.Abs(keydir)
ks := &KeyStore{keyStore: &keyStorePlain{keydir}}
ks.init(keydir)
return ks
}
func (ks *KeyStore) init(keydir string) {
ks.unlocked = make(map[common.Address]*unlocked)
ks.cache = newAddrCache(keydir)
// TODO: In order for this finalizer to work, there must be no references
// to ks. addressCache doesn't keep a reference but unlocked keys do,
// so the finalizer will not trigger until all timed unlocks have expired.
runtime.SetFinalizer(ks, func(m *KeyStore) {
m.cache.close()
})
}
// HasAddress reports whether a key with the given address is present.
func (ks *KeyStore) HasAddress(addr common.Address) bool {
return ks.cache.hasAddress(addr)
}
// Accounts returns all key files present in the directory.
func (ks *KeyStore) Accounts() []accounts.Account {
return ks.cache.accounts()
}
// Delete deletes the key matched by account if the passphrase is correct.
// If the account contains no filename, the address must match a unique key.
func (ks *KeyStore) Delete(a accounts.Account, passphrase string) error {
// Decrypting the key isn't really necessary, but we do
// it anyway to check the password and zero out the key
// immediately afterwards.
a, key, err := ks.getDecryptedKey(a, passphrase)
if key != nil {
zeroKey(key.PrivateKey)
}
if err != nil {
return err
}
// The order is crucial here. The key is dropped from the
// cache after the file is gone so that a reload happening in
// between won't insert it into the cache again.
err = os.Remove(a.URL)
if err == nil {
ks.cache.delete(a)
}
return err
}
// SignHash calculates a ECDSA signature for the given hash. The produced
// signature is in the [R || S || V] format where V is 0 or 1.
func (ks *KeyStore) SignHash(a accounts.Account, hash []byte) ([]byte, error) {
// Look up the key to sign with and abort if it cannot be found
ks.mu.RLock()
defer ks.mu.RUnlock()
unlockedKey, found := ks.unlocked[a.Address]
if !found {
return nil, ErrNeedPasswordOrUnlock
}
// Sign the hash using plain ECDSA operations
return crypto.Sign(hash, unlockedKey.PrivateKey)
}
// SignTx signs the given transaction with the requested account.
func (ks *KeyStore) SignTx(a accounts.Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
// Look up the key to sign with and abort if it cannot be found
ks.mu.RLock()
defer ks.mu.RUnlock()
unlockedKey, found := ks.unlocked[a.Address]
if !found {
return nil, ErrNeedPasswordOrUnlock
}
// Depending on the presence of the chain ID, sign with EIP155 or homestead
if chainID != nil {
return types.SignTx(tx, types.NewEIP155Signer(chainID), unlockedKey.PrivateKey)
}
return types.SignTx(tx, types.HomesteadSigner{}, unlockedKey.PrivateKey)
}
// SignHashWithPassphrase signs hash if the private key matching the given address
// can be decrypted with the given passphrase. The produced signature is in the
// [R || S || V] format where V is 0 or 1.
func (ks *KeyStore) SignHashWithPassphrase(a accounts.Account, passphrase string, hash []byte) (signature []byte, err error) {
_, key, err := ks.getDecryptedKey(a, passphrase)
if err != nil {
return nil, err
}
defer zeroKey(key.PrivateKey)
return crypto.Sign(hash, key.PrivateKey)
}
// SignTxWithPassphrase signs the transaction if the private key matching the
// given address can be decrypted with the given passphrase.
func (ks *KeyStore) SignTxWithPassphrase(a accounts.Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
_, key, err := ks.getDecryptedKey(a, passphrase)
if err != nil {
return nil, err
}
defer zeroKey(key.PrivateKey)
// Depending on the presence of the chain ID, sign with EIP155 or homestead
if chainID != nil {
return types.SignTx(tx, types.NewEIP155Signer(chainID), key.PrivateKey)
}
return types.SignTx(tx, types.HomesteadSigner{}, key.PrivateKey)
}
// Unlock unlocks the given account indefinitely.
func (ks *KeyStore) Unlock(a accounts.Account, passphrase string) error {
return ks.TimedUnlock(a, passphrase, 0)
}
// Lock removes the private key with the given address from memory.
func (ks *KeyStore) Lock(addr common.Address) error {
ks.mu.Lock()
if unl, found := ks.unlocked[addr]; found {
ks.mu.Unlock()
ks.expire(addr, unl, time.Duration(0)*time.Nanosecond)
} else {
ks.mu.Unlock()
}
return nil
}
// TimedUnlock unlocks the given account with the passphrase. The account
// stays unlocked for the duration of timeout. A timeout of 0 unlocks the account
// until the program exits. The account must match a unique key file.
//
// If the account address is already unlocked for a duration, TimedUnlock extends or
// shortens the active unlock timeout. If the address was previously unlocked
// indefinitely the timeout is not altered.
func (ks *KeyStore) TimedUnlock(a accounts.Account, passphrase string, timeout time.Duration) error {
a, key, err := ks.getDecryptedKey(a, passphrase)
if err != nil {
return err
}
ks.mu.Lock()
defer ks.mu.Unlock()
u, found := ks.unlocked[a.Address]
if found {
if u.abort == nil {
// The address was unlocked indefinitely, so unlocking
// it with a timeout would be confusing.
zeroKey(key.PrivateKey)
return nil
} else {
// Terminate the expire goroutine and replace it below.
close(u.abort)
}
}
if timeout > 0 {
u = &unlocked{Key: key, abort: make(chan struct{})}
go ks.expire(a.Address, u, timeout)
} else {
u = &unlocked{Key: key}
}
ks.unlocked[a.Address] = u
return nil
}
// Find resolves the given account into a unique entry in the keystore.
func (ks *KeyStore) Find(a accounts.Account) (accounts.Account, error) {
ks.cache.maybeReload()
ks.cache.mu.Lock()
a, err := ks.cache.find(a)
ks.cache.mu.Unlock()
return a, err
}
func (ks *KeyStore) getDecryptedKey(a accounts.Account, auth string) (accounts.Account, *Key, error) {
a, err := ks.Find(a)
if err != nil {
return a, nil, err
}
key, err := ks.keyStore.GetKey(a.Address, a.URL, auth)
return a, key, err
}
func (ks *KeyStore) expire(addr common.Address, u *unlocked, timeout time.Duration) {
t := time.NewTimer(timeout)
defer t.Stop()
select {
case <-u.abort:
// just quit
case <-t.C:
ks.mu.Lock()
// only drop if it's still the same key instance that dropLater
// was launched with. we can check that using pointer equality
// because the map stores a new pointer every time the key is
// unlocked.
if ks.unlocked[addr] == u {
zeroKey(u.PrivateKey)
delete(ks.unlocked, addr)
}
ks.mu.Unlock()
}
}
// NewAccount generates a new key and stores it into the key directory,
// encrypting it with the passphrase.
func (ks *KeyStore) NewAccount(passphrase string) (accounts.Account, error) {
_, account, err := storeNewKey(ks.keyStore, crand.Reader, passphrase)
if err != nil {
return accounts.Account{}, err
}
// Add the account to the cache immediately rather
// than waiting for file system notifications to pick it up.
ks.cache.add(account)
return account, nil
}
// Export exports as a JSON key, encrypted with newPassphrase.
func (ks *KeyStore) Export(a accounts.Account, passphrase, newPassphrase string) (keyJSON []byte, err error) {
_, key, err := ks.getDecryptedKey(a, passphrase)
if err != nil {
return nil, err
}
var N, P int
if store, ok := ks.keyStore.(*keyStorePassphrase); ok {
N, P = store.scryptN, store.scryptP
} else {
N, P = StandardScryptN, StandardScryptP
}
return EncryptKey(key, newPassphrase, N, P)
}
// Import stores the given encrypted JSON key into the key directory.
func (ks *KeyStore) Import(keyJSON []byte, passphrase, newPassphrase string) (accounts.Account, error) {
key, err := DecryptKey(keyJSON, passphrase)
if key != nil && key.PrivateKey != nil {
defer zeroKey(key.PrivateKey)
}
if err != nil {
return accounts.Account{}, err
}
return ks.importKey(key, newPassphrase)
}
// ImportECDSA stores the given key into the key directory, encrypting it with the passphrase.
func (ks *KeyStore) ImportECDSA(priv *ecdsa.PrivateKey, passphrase string) (accounts.Account, error) {
key := newKeyFromECDSA(priv)
if ks.cache.hasAddress(key.Address) {
return accounts.Account{}, fmt.Errorf("account already exists")
}
return ks.importKey(key, passphrase)
}
func (ks *KeyStore) importKey(key *Key, passphrase string) (accounts.Account, error) {
a := accounts.Account{Address: key.Address, URL: ks.keyStore.JoinPath(keyFileName(key.Address))}
if err := ks.keyStore.StoreKey(a.URL, key, passphrase); err != nil {
return accounts.Account{}, err
}
ks.cache.add(a)
return a, nil
}
// Update changes the passphrase of an existing account.
func (ks *KeyStore) Update(a accounts.Account, passphrase, newPassphrase string) error {
a, key, err := ks.getDecryptedKey(a, passphrase)
if err != nil {
return err
}
return ks.keyStore.StoreKey(a.URL, key, newPassphrase)
}
// ImportPreSaleKey decrypts the given Ethereum presale wallet and stores
// a key file in the key directory. The key file is encrypted with the same passphrase.
func (ks *KeyStore) ImportPreSaleKey(keyJSON []byte, passphrase string) (accounts.Account, error) {
a, _, err := importPreSaleKey(ks.keyStore, keyJSON, passphrase)
if err != nil {
return a, err
}
ks.cache.add(a)
return a, nil
}
// zeroKey zeroes a private key in memory.
func zeroKey(k *ecdsa.PrivateKey) {
b := k.D.Bits()
for i := range b {
b[i] = 0
}
}

2
accounts/key_store_passphrase.go → accounts/keystore/keystore_passphrase.go
View File

@ -23,7 +23,7 @@ The crypto is documented at https://github.com/ethereum/wiki/wiki/Web3-Secret-St
*/
package accounts
package keystore
import (
"bytes"

2
accounts/key_store_passphrase_test.go → accounts/keystore/keystore_passphrase_test.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"io/ioutil"

2
accounts/key_store_plain.go → accounts/keystore/keystore_plain.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"encoding/json"

30
accounts/key_store_test.go → accounts/keystore/keystore_plain_test.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"crypto/rand"
@ -30,7 +30,7 @@ import (
"github.com/ethereum/go-ethereum/crypto"
)
func tmpKeyStore(t *testing.T, encrypted bool) (dir string, ks keyStore) {
func tmpKeyStoreIface(t *testing.T, encrypted bool) (dir string, ks keyStore) {
d, err := ioutil.TempDir("", "geth-keystore-test")
if err != nil {
t.Fatal(err)
@ -44,7 +44,7 @@ func tmpKeyStore(t *testing.T, encrypted bool) (dir string, ks keyStore) {
}
func TestKeyStorePlain(t *testing.T) {
dir, ks := tmpKeyStore(t, false)
dir, ks := tmpKeyStoreIface(t, false)
defer os.RemoveAll(dir)
pass := "" // not used but required by API
@ -52,7 +52,7 @@ func TestKeyStorePlain(t *testing.T) {
if err != nil {
t.Fatal(err)
}
k2, err := ks.GetKey(k1.Address, account.File, pass)
k2, err := ks.GetKey(k1.Address, account.URL, pass)
if err != nil {
t.Fatal(err)
}
@ -65,7 +65,7 @@ func TestKeyStorePlain(t *testing.T) {
}
func TestKeyStorePassphrase(t *testing.T) {
dir, ks := tmpKeyStore(t, true)
dir, ks := tmpKeyStoreIface(t, true)
defer os.RemoveAll(dir)
pass := "foo"
@ -73,7 +73,7 @@ func TestKeyStorePassphrase(t *testing.T) {
if err != nil {
t.Fatal(err)
}
k2, err := ks.GetKey(k1.Address, account.File, pass)
k2, err := ks.GetKey(k1.Address, account.URL, pass)
if err != nil {
t.Fatal(err)
}
@ -86,7 +86,7 @@ func TestKeyStorePassphrase(t *testing.T) {
}
func TestKeyStorePassphraseDecryptionFail(t *testing.T) {
dir, ks := tmpKeyStore(t, true)
dir, ks := tmpKeyStoreIface(t, true)
defer os.RemoveAll(dir)
pass := "foo"
@ -94,13 +94,13 @@ func TestKeyStorePassphraseDecryptionFail(t *testing.T) {
if err != nil {
t.Fatal(err)
}
if _, err = ks.GetKey(k1.Address, account.File, "bar"); err != ErrDecrypt {
if _, err = ks.GetKey(k1.Address, account.URL, "bar"); err != ErrDecrypt {
t.Fatalf("wrong error for invalid passphrase\ngot %q\nwant %q", err, ErrDecrypt)
}
}
func TestImportPreSaleKey(t *testing.T) {
dir, ks := tmpKeyStore(t, true)
dir, ks := tmpKeyStoreIface(t, true)
defer os.RemoveAll(dir)
// file content of a presale key file generated with:
@ -115,8 +115,8 @@ func TestImportPreSaleKey(t *testing.T) {
if account.Address != common.HexToAddress("d4584b5f6229b7be90727b0fc8c6b91bb427821f") {
t.Errorf("imported account has wrong address %x", account.Address)
}
if !strings.HasPrefix(account.File, dir) {
t.Errorf("imported account file not in keystore directory: %q", account.File)
if !strings.HasPrefix(account.URL, dir) {
t.Errorf("imported account file not in keystore directory: %q", account.URL)
}
}
@ -142,19 +142,19 @@ func TestV3_PBKDF2_1(t *testing.T) {
func TestV3_PBKDF2_2(t *testing.T) {
t.Parallel()
tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
tests := loadKeyStoreTestV3("../../tests/files/KeyStoreTests/basic_tests.json", t)
testDecryptV3(tests["test1"], t)
}
func TestV3_PBKDF2_3(t *testing.T) {
t.Parallel()
tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
tests := loadKeyStoreTestV3("../../tests/files/KeyStoreTests/basic_tests.json", t)
testDecryptV3(tests["python_generated_test_with_odd_iv"], t)
}
func TestV3_PBKDF2_4(t *testing.T) {
t.Parallel()
tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
tests := loadKeyStoreTestV3("../../tests/files/KeyStoreTests/basic_tests.json", t)
testDecryptV3(tests["evilnonce"], t)
}
@ -166,7 +166,7 @@ func TestV3_Scrypt_1(t *testing.T) {
func TestV3_Scrypt_2(t *testing.T) {
t.Parallel()
tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
tests := loadKeyStoreTestV3("../../tests/files/KeyStoreTests/basic_tests.json", t)
testDecryptV3(tests["test2"], t)
}

103
accounts/accounts_test.go → accounts/keystore/keystore_test.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"io/ioutil"
@ -24,183 +24,184 @@ import (
"testing"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
)
var testSigData = make([]byte, 32)
func TestManager(t *testing.T) {
dir, am := tmpManager(t, true)
func TestKeyStore(t *testing.T) {
dir, ks := tmpKeyStore(t, true)
defer os.RemoveAll(dir)
a, err := am.NewAccount("foo")
a, err := ks.NewAccount("foo")
if err != nil {
t.Fatal(err)
}
if !strings.HasPrefix(a.File, dir) {
t.Errorf("account file %s doesn't have dir prefix", a.File)
if !strings.HasPrefix(a.URL, dir) {
t.Errorf("account file %s doesn't have dir prefix", a.URL)
}
stat, err := os.Stat(a.File)
stat, err := os.Stat(a.URL)
if err != nil {
t.Fatalf("account file %s doesn't exist (%v)", a.File, err)
t.Fatalf("account file %s doesn't exist (%v)", a.URL, err)
}
if runtime.GOOS != "windows" && stat.Mode() != 0600 {
t.Fatalf("account file has wrong mode: got %o, want %o", stat.Mode(), 0600)
}
if !am.HasAddress(a.Address) {
if !ks.HasAddress(a.Address) {
t.Errorf("HasAccount(%x) should've returned true", a.Address)
}
if err := am.Update(a, "foo", "bar"); err != nil {
if err := ks.Update(a, "foo", "bar"); err != nil {
t.Errorf("Update error: %v", err)
}
if err := am.Delete(a, "bar"); err != nil {
if err := ks.Delete(a, "bar"); err != nil {
t.Errorf("Delete error: %v", err)
}
if common.FileExist(a.File) {
t.Errorf("account file %s should be gone after Delete", a.File)
if common.FileExist(a.URL) {
t.Errorf("account file %s should be gone after Delete", a.URL)
}
if am.HasAddress(a.Address) {
if ks.HasAddress(a.Address) {
t.Errorf("HasAccount(%x) should've returned true after Delete", a.Address)
}
}
func TestSign(t *testing.T) {
dir, am := tmpManager(t, true)
dir, ks := tmpKeyStore(t, true)
defer os.RemoveAll(dir)
pass := "" // not used but required by API
a1, err := am.NewAccount(pass)
a1, err := ks.NewAccount(pass)
if err != nil {
t.Fatal(err)
}
if err := am.Unlock(a1, ""); err != nil {
if err := ks.Unlock(a1, ""); err != nil {
t.Fatal(err)
}
if _, err := am.Sign(a1.Address, testSigData); err != nil {
if _, err := ks.SignHash(accounts.Account{Address: a1.Address}, testSigData); err != nil {
t.Fatal(err)
}
}
func TestSignWithPassphrase(t *testing.T) {
dir, am := tmpManager(t, true)
dir, ks := tmpKeyStore(t, true)
defer os.RemoveAll(dir)
pass := "passwd"
acc, err := am.NewAccount(pass)
acc, err := ks.NewAccount(pass)
if err != nil {
t.Fatal(err)
}
if _, unlocked := am.unlocked[acc.Address]; unlocked {
if _, unlocked := ks.unlocked[acc.Address]; unlocked {
t.Fatal("expected account to be locked")
}
_, err = am.SignWithPassphrase(acc, pass, testSigData)
_, err = ks.SignHashWithPassphrase(acc, pass, testSigData)
if err != nil {
t.Fatal(err)
}
if _, unlocked := am.unlocked[acc.Address]; unlocked {
if _, unlocked := ks.unlocked[acc.Address]; unlocked {
t.Fatal("expected account to be locked")
}
if _, err = am.SignWithPassphrase(acc, "invalid passwd", testSigData); err == nil {
t.Fatal("expected SignHash to fail with invalid password")
if _, err = ks.SignHashWithPassphrase(acc, "invalid passwd", testSigData); err == nil {
t.Fatal("expected SignHashWithPassphrase to fail with invalid password")
}
}
func TestTimedUnlock(t *testing.T) {
dir, am := tmpManager(t, true)
dir, ks := tmpKeyStore(t, true)
defer os.RemoveAll(dir)
pass := "foo"
a1, err := am.NewAccount(pass)
a1, err := ks.NewAccount(pass)
if err != nil {
t.Fatal(err)
}
// Signing without passphrase fails because account is locked
_, err = am.Sign(a1.Address, testSigData)
if err != ErrLocked {
t.Fatal("Signing should've failed with ErrLocked before unlocking, got ", err)
_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
if err != ErrNeedPasswordOrUnlock {
t.Fatal("Signing should've failed with ErrNeedPasswordOrUnlock before unlocking, got ", err)
}
// Signing with passphrase works
if err = am.TimedUnlock(a1, pass, 100*time.Millisecond); err != nil {
if err = ks.TimedUnlock(a1, pass, 100*time.Millisecond); err != nil {
t.Fatal(err)
}
// Signing without passphrase works because account is temp unlocked
_, err = am.Sign(a1.Address, testSigData)
_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
if err != nil {
t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
}
// Signing fails again after automatic locking
time.Sleep(250 * time.Millisecond)
_, err = am.Sign(a1.Address, testSigData)
if err != ErrLocked {
t.Fatal("Signing should've failed with ErrLocked timeout expired, got ", err)
_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
if err != ErrNeedPasswordOrUnlock {
t.Fatal("Signing should've failed with ErrNeedPasswordOrUnlock timeout expired, got ", err)
}
}
func TestOverrideUnlock(t *testing.T) {
dir, am := tmpManager(t, false)
dir, ks := tmpKeyStore(t, false)
defer os.RemoveAll(dir)
pass := "foo"
a1, err := am.NewAccount(pass)
a1, err := ks.NewAccount(pass)
if err != nil {
t.Fatal(err)
}
// Unlock indefinitely.
if err = am.TimedUnlock(a1, pass, 5*time.Minute); err != nil {
if err = ks.TimedUnlock(a1, pass, 5*time.Minute); err != nil {
t.Fatal(err)
}
// Signing without passphrase works because account is temp unlocked
_, err = am.Sign(a1.Address, testSigData)
_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
if err != nil {
t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
}
// reset unlock to a shorter period, invalidates the previous unlock
if err = am.TimedUnlock(a1, pass, 100*time.Millisecond); err != nil {
if err = ks.TimedUnlock(a1, pass, 100*time.Millisecond); err != nil {
t.Fatal(err)
}
// Signing without passphrase still works because account is temp unlocked
_, err = am.Sign(a1.Address, testSigData)
_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
if err != nil {
t.Fatal("Signing shouldn't return an error after unlocking, got ", err)
}
// Signing fails again after automatic locking
time.Sleep(250 * time.Millisecond)
_, err = am.Sign(a1.Address, testSigData)
if err != ErrLocked {
t.Fatal("Signing should've failed with ErrLocked timeout expired, got ", err)
_, err = ks.SignHash(accounts.Account{Address: a1.Address}, testSigData)
if err != ErrNeedPasswordOrUnlock {
t.Fatal("Signing should've failed with ErrNeedPasswordOrUnlock timeout expired, got ", err)
}
}
// This test should fail under -race if signing races the expiration goroutine.
func TestSignRace(t *testing.T) {
dir, am := tmpManager(t, false)
dir, ks := tmpKeyStore(t, false)
defer os.RemoveAll(dir)
// Create a test account.
a1, err := am.NewAccount("")
a1, err := ks.NewAccount("")
if err != nil {
t.Fatal("could not create the test account", err)
}
if err := am.TimedUnlock(a1, "", 15*time.Millisecond); err != nil {
if err := ks.TimedUnlock(a1, "", 15*time.Millisecond); err != nil {
t.Fatal("could not unlock the test account", err)
}
end := time.Now().Add(500 * time.Millisecond)
for time.Now().Before(end) {
if _, err := am.Sign(a1.Address, testSigData); err == ErrLocked {
if _, err := ks.SignHash(accounts.Account{Address: a1.Address}, testSigData); err == ErrNeedPasswordOrUnlock {
return
} else if err != nil {
t.Errorf("Sign error: %v", err)
@ -211,14 +212,14 @@ func TestSignRace(t *testing.T) {
t.Errorf("Account did not lock within the timeout")
}
func tmpManager(t *testing.T, encrypted bool) (string, *Manager) {
func tmpKeyStore(t *testing.T, encrypted bool) (string, *KeyStore) {
d, err := ioutil.TempDir("", "eth-keystore-test")
if err != nil {
t.Fatal(err)
}
new := NewPlaintextManager
new := NewPlaintextKeyStore
if encrypted {
new = func(kd string) *Manager { return NewManager(kd, veryLightScryptN, veryLightScryptP) }
new = func(kd string) *KeyStore { return NewKeyStore(kd, veryLightScryptN, veryLightScryptP) }
}
return d, new(d)
}

11
accounts/presale.go → accounts/keystore/presale.go
View File

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
package keystore
import (
"crypto/aes"
@ -25,20 +25,21 @@ import (
"errors"
"fmt"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/crypto"
"github.com/pborman/uuid"
"golang.org/x/crypto/pbkdf2"
)
// creates a Key and stores that in the given KeyStore by decrypting a presale key JSON
func importPreSaleKey(keyStore keyStore, keyJSON []byte, password string) (Account, *Key, error) {
func importPreSaleKey(keyStore keyStore, keyJSON []byte, password string) (accounts.Account, *Key, error) {
key, err := decryptPreSaleKey(keyJSON, password)
if err != nil {
return Account{}, nil, err
return accounts.Account{}, nil, err
}
key.Id = uuid.NewRandom()
a := Account{Address: key.Address, File: keyStore.JoinPath(keyFileName(key.Address))}
err = keyStore.StoreKey(a.File, key, password)
a := accounts.Account{Address: key.Address, URL: keyStore.JoinPath(keyFileName(key.Address))}
err = keyStore.StoreKey(a.URL, key, password)
return a, key, err
}

0
accounts/testdata/dupes/1 → accounts/keystore/testdata/dupes/1 vendored
View File

0
accounts/testdata/dupes/2 → accounts/keystore/testdata/dupes/2 vendored
View File

0
accounts/testdata/dupes/foo → accounts/keystore/testdata/dupes/foo vendored
View File

0
accounts/testdata/keystore/.hiddenfile → accounts/keystore/testdata/keystore/.hiddenfile vendored
View File

0
accounts/testdata/keystore/README → accounts/keystore/testdata/keystore/README vendored
View File

0
accounts/testdata/keystore/UTC--2016-03-22T12-57-55.920751759Z--7ef5a6135f1fd6a02593eedc869c6d41d934aef8 → accounts/keystore/testdata/keystore/UTC--2016-03-22T12-57-55.920751759Z--7ef5a6135f1fd6a02593eedc869c6d41d934aef8 vendored
View File

0
accounts/testdata/keystore/aaa → accounts/keystore/testdata/keystore/aaa vendored
View File

0
accounts/testdata/keystore/empty → accounts/keystore/testdata/keystore/empty vendored
View File

0
accounts/testdata/keystore/foo/fd9bd350f08ee3c0c19b85a8e16114a11a60aa4e → accounts/keystore/testdata/keystore/foo/fd9bd350f08ee3c0c19b85a8e16114a11a60aa4e vendored
View File

0
accounts/testdata/keystore/garbage → accounts/keystore/testdata/keystore/garbage vendored
View File

0
accounts/testdata/keystore/no-address → accounts/keystore/testdata/keystore/no-address vendored
View File

0
accounts/testdata/keystore/zero → accounts/keystore/testdata/keystore/zero vendored
View File

0
accounts/testdata/keystore/zzz → accounts/keystore/testdata/keystore/zzz vendored
View File

0
accounts/testdata/v1/cb61d5a9c4896fb9658090b597ef0e7be6f7b67e/cb61d5a9c4896fb9658090b597ef0e7be6f7b67e → accounts/keystore/testdata/v1/cb61d5a9c4896fb9658090b597ef0e7be6f7b67e/cb61d5a9c4896fb9658090b597ef0e7be6f7b67e vendored
View File

0
accounts/testdata/v1_test_vector.json → accounts/keystore/testdata/v1_test_vector.json vendored
View File

0
accounts/testdata/v3_test_vector.json → accounts/keystore/testdata/v3_test_vector.json vendored
View File

0
accounts/testdata/very-light-scrypt.json → accounts/keystore/testdata/very-light-scrypt.json vendored
View File

6
accounts/watch.go → accounts/keystore/watch.go
View File

@ -16,7 +16,7 @@
// +build darwin,!ios freebsd linux,!arm64 netbsd solaris
package accounts
package keystore
import (
"time"
@ -27,14 +27,14 @@ import (
)
type watcher struct {
ac *addrCache
ac *addressCache
starting bool
running bool
ev chan notify.EventInfo
quit chan struct{}
}
func newWatcher(ac *addrCache) *watcher {
func newWatcher(ac *addressCache) *watcher {
return &watcher{
ac: ac,
ev: make(chan notify.EventInfo, 10),

8
accounts/watch_fallback.go → accounts/keystore/watch_fallback.go
View File

@ -19,10 +19,10 @@
// This is the fallback implementation of directory watching.
// It is used on unsupported platforms.
package accounts
package keystore
type watcher struct{ running bool }
func newWatcher(*addrCache) *watcher { return new(watcher) }
func (*watcher) start() {}
func (*watcher) close() {}
func newWatcher(*addressCache) *watcher { return new(watcher) }
func (*watcher) start() {}
func (*watcher) close() {}