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ocr.go
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ocr.go
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package keystore
import (
"fmt"
"github.com/pkg/errors"
"github.com/smartcontractkit/chainlink/v2/core/services/keystore/keys/ocrkey"
)
//go:generate mockery --quiet --name OCR --output ./mocks/ --case=underscore
type OCR interface {
Get(id string) (ocrkey.KeyV2, error)
GetAll() ([]ocrkey.KeyV2, error)
Create() (ocrkey.KeyV2, error)
Add(key ocrkey.KeyV2) error
Delete(id string) (ocrkey.KeyV2, error)
Import(keyJSON []byte, password string) (ocrkey.KeyV2, error)
Export(id string, password string) ([]byte, error)
EnsureKey() error
GetV1KeysAsV2() ([]ocrkey.KeyV2, error)
}
// KeyNotFoundError is returned when we don't find a requested key
type KeyNotFoundError struct {
ID string
KeyType string
}
func (e KeyNotFoundError) Error() string {
return fmt.Sprintf("unable to find %s key with id %s", e.KeyType, e.ID)
}
type ocr struct {
*keyManager
}
var _ OCR = &ocr{}
func newOCRKeyStore(km *keyManager) *ocr {
return &ocr{
km,
}
}
func (ks *ocr) Get(id string) (ocrkey.KeyV2, error) {
ks.lock.RLock()
defer ks.lock.RUnlock()
if ks.isLocked() {
return ocrkey.KeyV2{}, ErrLocked
}
return ks.getByID(id)
}
func (ks *ocr) GetAll() (keys []ocrkey.KeyV2, _ error) {
ks.lock.RLock()
defer ks.lock.RUnlock()
if ks.isLocked() {
return nil, ErrLocked
}
for _, key := range ks.keyRing.OCR {
keys = append(keys, key)
}
return keys, nil
}
func (ks *ocr) Create() (ocrkey.KeyV2, error) {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ocrkey.KeyV2{}, ErrLocked
}
key, err := ocrkey.NewV2()
if err != nil {
return ocrkey.KeyV2{}, err
}
return key, ks.safeAddKey(key)
}
func (ks *ocr) Add(key ocrkey.KeyV2) error {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ErrLocked
}
if _, found := ks.keyRing.OCR[key.ID()]; found {
return fmt.Errorf("key with ID %s already exists", key.ID())
}
return ks.safeAddKey(key)
}
func (ks *ocr) Delete(id string) (ocrkey.KeyV2, error) {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ocrkey.KeyV2{}, ErrLocked
}
key, err := ks.getByID(id)
if err != nil {
return ocrkey.KeyV2{}, err
}
err = ks.safeRemoveKey(key)
return key, err
}
func (ks *ocr) Import(keyJSON []byte, password string) (ocrkey.KeyV2, error) {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ocrkey.KeyV2{}, ErrLocked
}
key, err := ocrkey.FromEncryptedJSON(keyJSON, password)
if err != nil {
return ocrkey.KeyV2{}, errors.Wrap(err, "OCRKeyStore#ImportKey failed to decrypt key")
}
if _, found := ks.keyRing.OCR[key.ID()]; found {
return ocrkey.KeyV2{}, fmt.Errorf("key with ID %s already exists", key.ID())
}
return key, ks.keyManager.safeAddKey(key)
}
func (ks *ocr) Export(id string, password string) ([]byte, error) {
ks.lock.RLock()
defer ks.lock.RUnlock()
if ks.isLocked() {
return nil, ErrLocked
}
key, err := ks.getByID(id)
if err != nil {
return nil, err
}
return key.ToEncryptedJSON(password, ks.scryptParams)
}
// EnsureKey verifies whether the OCR key has been seeded, if not, it creates it.
func (ks *ocr) EnsureKey() error {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ErrLocked
}
if len(ks.keyRing.OCR) > 0 {
return nil
}
key, err := ocrkey.NewV2()
if err != nil {
return err
}
ks.logger.Infof("Created OCR key with ID %s", key.ID())
return ks.safeAddKey(key)
}
func (ks *ocr) GetV1KeysAsV2() (keys []ocrkey.KeyV2, _ error) {
v1Keys, err := ks.orm.GetEncryptedV1OCRKeys()
if err != nil {
return keys, err
}
for _, keyV1 := range v1Keys {
pk, err := keyV1.Decrypt(ks.password)
if err != nil {
return keys, err
}
keys = append(keys, pk.ToV2())
}
return keys, nil
}
func (ks *ocr) getByID(id string) (ocrkey.KeyV2, error) {
key, found := ks.keyRing.OCR[id]
if !found {
return ocrkey.KeyV2{}, KeyNotFoundError{ID: id, KeyType: "OCR"}
}
return key, nil
}