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p2p.go
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p2p.go
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package keystore
import (
"fmt"
"strings"
"github.com/pkg/errors"
"github.com/smartcontractkit/chainlink/v2/core/services/keystore/keys/p2pkey"
"github.com/smartcontractkit/chainlink/v2/core/services/pg"
)
//go:generate mockery --quiet --name P2P --output ./mocks/ --case=underscore --filename p2p.go
type P2P interface {
Get(id p2pkey.PeerID) (p2pkey.KeyV2, error)
GetAll() ([]p2pkey.KeyV2, error)
Create() (p2pkey.KeyV2, error)
Add(key p2pkey.KeyV2) error
Delete(id p2pkey.PeerID) (p2pkey.KeyV2, error)
Import(keyJSON []byte, password string) (p2pkey.KeyV2, error)
Export(id p2pkey.PeerID, password string) ([]byte, error)
EnsureKey() error
GetOrFirst(id p2pkey.PeerID) (p2pkey.KeyV2, error)
}
type p2p struct {
*keyManager
}
var _ P2P = &p2p{}
func newP2PKeyStore(km *keyManager) *p2p {
return &p2p{
km,
}
}
func (ks *p2p) Get(id p2pkey.PeerID) (p2pkey.KeyV2, error) {
ks.lock.RLock()
defer ks.lock.RUnlock()
if ks.isLocked() {
return p2pkey.KeyV2{}, ErrLocked
}
return ks.getByID(id)
}
func (ks *p2p) GetAll() (keys []p2pkey.KeyV2, _ error) {
ks.lock.RLock()
defer ks.lock.RUnlock()
if ks.isLocked() {
return nil, ErrLocked
}
for _, key := range ks.keyRing.P2P {
keys = append(keys, key)
}
return keys, nil
}
func (ks *p2p) Create() (p2pkey.KeyV2, error) {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return p2pkey.KeyV2{}, ErrLocked
}
key, err := p2pkey.NewV2()
if err != nil {
return p2pkey.KeyV2{}, err
}
return key, ks.safeAddKey(key)
}
func (ks *p2p) Add(key p2pkey.KeyV2) error {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ErrLocked
}
if _, found := ks.keyRing.P2P[key.ID()]; found {
return fmt.Errorf("key with ID %s already exists", key.ID())
}
return ks.safeAddKey(key)
}
func (ks *p2p) Delete(id p2pkey.PeerID) (p2pkey.KeyV2, error) {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return p2pkey.KeyV2{}, ErrLocked
}
key, err := ks.getByID(id)
if err != nil {
return p2pkey.KeyV2{}, err
}
err = ks.safeRemoveKey(key, func(tx pg.Queryer) error {
_, err2 := tx.Exec(`DELETE FROM p2p_peers WHERE peer_id = $1`, key.ID())
return err2
})
return key, err
}
func (ks *p2p) Import(keyJSON []byte, password string) (p2pkey.KeyV2, error) {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return p2pkey.KeyV2{}, ErrLocked
}
key, err := p2pkey.FromEncryptedJSON(keyJSON, password)
if err != nil {
return p2pkey.KeyV2{}, errors.Wrap(err, "P2PKeyStore#ImportKey failed to decrypt key")
}
if _, found := ks.keyRing.P2P[key.ID()]; found {
return p2pkey.KeyV2{}, fmt.Errorf("key with ID %s already exists", key.ID())
}
return key, ks.keyManager.safeAddKey(key)
}
func (ks *p2p) Export(id p2pkey.PeerID, 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)
}
func (ks *p2p) EnsureKey() error {
ks.lock.Lock()
defer ks.lock.Unlock()
if ks.isLocked() {
return ErrLocked
}
if len(ks.keyRing.P2P) > 0 {
return nil
}
key, err := p2pkey.NewV2()
if err != nil {
return err
}
ks.logger.Infof("Created P2P key with ID %s", key.ID())
return ks.safeAddKey(key)
}
var (
ErrNoP2PKey = errors.New("no p2p keys exist")
)
func (ks *p2p) GetOrFirst(id p2pkey.PeerID) (p2pkey.KeyV2, error) {
ks.lock.RLock()
defer ks.lock.RUnlock()
if ks.isLocked() {
return p2pkey.KeyV2{}, ErrLocked
}
if id != (p2pkey.PeerID{}) {
return ks.getByID(id)
} else if len(ks.keyRing.P2P) == 1 {
ks.logger.Warn("No P2P.PeerID set, defaulting to first key in database")
for _, key := range ks.keyRing.P2P {
return key, nil
}
} else if len(ks.keyRing.P2P) == 0 {
return p2pkey.KeyV2{}, ErrNoP2PKey
}
possibleKeys := make([]string, 0, len(ks.keyRing.P2P))
for _, key := range ks.keyRing.P2P {
possibleKeys = append(possibleKeys, key.ID())
}
//To avoid ambiguity, we require the user to specify a peer ID if there are multiple keys
return p2pkey.KeyV2{}, errors.New(
"multiple p2p keys found but peer ID was not set - you must specify a P2P.PeerID " +
"config var if you have more than one key, or delete the keys you aren't using" +
" (possible keys: " + strings.Join(possibleKeys, ", ") + ")",
)
}
func (ks *p2p) getByID(id p2pkey.PeerID) (p2pkey.KeyV2, error) {
key, found := ks.keyRing.P2P[id.Raw()]
if !found {
return p2pkey.KeyV2{}, KeyNotFoundError{ID: id.String(), KeyType: "P2P"}
}
return key, nil
}