mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-25 04:47:18 +00:00
a005c77b3f
* rely on errors.Is * wrap errors
243 lines
6.5 KiB
Go
243 lines
6.5 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"crypto/ecdsa"
|
|
"math/big"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum"
|
|
"github.com/ethereum/go-ethereum/accounts/abi/bind"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/ethclient"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
"github.com/pkg/errors"
|
|
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
|
|
contracts "github.com/prysmaticlabs/prysm/contracts/deposit-contract"
|
|
pb "github.com/prysmaticlabs/prysm/proto/cluster"
|
|
"github.com/prysmaticlabs/prysm/shared/bls"
|
|
"github.com/prysmaticlabs/prysm/shared/depositutil"
|
|
"github.com/prysmaticlabs/prysm/shared/keystore"
|
|
"go.opencensus.io/plugin/ocgrpc"
|
|
"google.golang.org/grpc"
|
|
)
|
|
|
|
var gasLimit = uint64(4000000)
|
|
var blockTime = time.Duration(14)
|
|
|
|
type server struct {
|
|
contract *contracts.DepositContract
|
|
db *db
|
|
depositAmount *big.Int
|
|
txPk *ecdsa.PrivateKey
|
|
client *ethclient.Client
|
|
beacon ethpb.BeaconNodeValidatorClient
|
|
|
|
clientLock sync.Mutex
|
|
}
|
|
|
|
func newServer(db *db, rpcAddr, depositContractAddr, funderPK, validatorDepositAmount, beaconRPCAddr string) *server {
|
|
rpcClient, err := rpc.Dial(rpcAddr)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
client := ethclient.NewClient(rpcClient)
|
|
|
|
contract, err := contracts.NewDepositContract(common.HexToAddress(depositContractAddr), client)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
txPk, err := crypto.HexToECDSA(funderPK)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
depositAmount := big.NewInt(0)
|
|
depositAmount.SetString(validatorDepositAmount, 10)
|
|
|
|
conn, err := grpc.DialContext(context.Background(), beaconRPCAddr, grpc.WithInsecure(), grpc.WithStatsHandler(&ocgrpc.ClientHandler{}))
|
|
if err != nil {
|
|
log.Errorf("Could not dial endpoint: %s, %v", beaconRPCAddr, err)
|
|
}
|
|
|
|
return &server{
|
|
contract: contract,
|
|
client: client,
|
|
db: db,
|
|
depositAmount: depositAmount,
|
|
txPk: txPk,
|
|
beacon: ethpb.NewBeaconNodeValidatorClient(conn),
|
|
}
|
|
}
|
|
|
|
func (s *server) makeDeposit(pubkey, withdrawalCredentials, signature []byte, depositRoot [32]byte) (*types.Transaction, error) {
|
|
txOps := bind.NewKeyedTransactor(s.txPk)
|
|
txOps.Value = s.depositAmount
|
|
txOps.GasLimit = gasLimit
|
|
tx, err := s.contract.Deposit(txOps, pubkey, withdrawalCredentials, signature, depositRoot)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "deposit failed")
|
|
}
|
|
log.WithField("tx", tx.Hash().Hex()).Info("Deposit transaction sent")
|
|
|
|
return tx, nil
|
|
}
|
|
|
|
func (s *server) Request(ctx context.Context, req *pb.PrivateKeyRequest) (*pb.PrivateKeyResponse, error) {
|
|
s.clientLock.Lock()
|
|
defer s.clientLock.Unlock()
|
|
|
|
if req.NumberOfKeys == 0 {
|
|
req.NumberOfKeys = 1
|
|
}
|
|
|
|
// build the list of PKs in the following order, until the requested
|
|
// amount is ready to return.
|
|
// - PKs already assigned to the pod
|
|
// - PKs that have not yet been allocated
|
|
// - PKs that are newly initialized with deposits
|
|
|
|
pks, err := s.db.PodPKs(ctx, req.PodName)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if pks != nil && len(pks.PrivateKeys) > 0 {
|
|
log.WithField("pod", req.PodName).Debug("Returning existing assignment(s)")
|
|
return &pb.PrivateKeyResponse{
|
|
PrivateKeys: pks,
|
|
}, nil
|
|
}
|
|
|
|
unallocated, err := s.db.UnallocatedPKs(ctx, req.NumberOfKeys)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
log.WithField(
|
|
"pod", req.PodName,
|
|
).WithField(
|
|
"keys", len(unallocated.PrivateKeys),
|
|
).Debug("Recycling existing private key(s)")
|
|
|
|
pks.PrivateKeys = append(pks.PrivateKeys, unallocated.PrivateKeys...)
|
|
|
|
if *ensureDeposited {
|
|
log.Debugf("Ensuring %d keys are deposited", len(pks.PrivateKeys))
|
|
ok := make([][]byte, 0, len(pks.PrivateKeys))
|
|
for _, pk := range pks.PrivateKeys {
|
|
sk, err := bls.SecretKeyFromBytes(pk)
|
|
if err != nil || sk == nil {
|
|
continue
|
|
}
|
|
pub := sk.PublicKey().Marshal()
|
|
req := ðpb.ValidatorStatusRequest{PublicKey: pub}
|
|
res, err := s.beacon.ValidatorStatus(ctx, req)
|
|
if err != nil {
|
|
log.WithError(err).Error("Failed to get validator status")
|
|
continue
|
|
}
|
|
if res.Status == ethpb.ValidatorStatus_UNKNOWN_STATUS {
|
|
log.Warn("Deleting unknown deposit pubkey")
|
|
if err := s.db.DeleteUnallocatedKey(ctx, pk); err != nil {
|
|
log.WithError(err).Error("Failed to delete unallocated key")
|
|
}
|
|
} else {
|
|
ok = append(ok, pk)
|
|
}
|
|
}
|
|
pks.PrivateKeys = ok
|
|
}
|
|
|
|
if len(pks.PrivateKeys) < int(req.NumberOfKeys) {
|
|
c := int(req.NumberOfKeys) - len(pks.PrivateKeys)
|
|
newKeys, err := s.allocateNewKeys(ctx, req.PodName, c)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
pks.PrivateKeys = append(pks.PrivateKeys, newKeys.PrivateKeys...)
|
|
}
|
|
|
|
if err := s.db.AssignExistingPKs(ctx, pks, req.PodName); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &pb.PrivateKeyResponse{PrivateKeys: pks}, nil
|
|
}
|
|
|
|
func (s *server) allocateNewKeys(ctx context.Context, podName string, numKeys int) (*pb.PrivateKeys, error) {
|
|
if !*allowNewDeposits {
|
|
return nil, errors.New("new deposits not allowed")
|
|
}
|
|
pks := make([][]byte, 0, numKeys)
|
|
txMap := make(map[*keystore.Key]*types.Transaction)
|
|
|
|
for i := 0; i < numKeys; i++ {
|
|
key, err := keystore.NewKey()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Make the validator deposit
|
|
// NOTE: This uses the validator key as the withdrawal key
|
|
di, dr, err := depositutil.DepositInput(
|
|
key.SecretKey, /*depositKey*/
|
|
key.SecretKey, /*withdrawalKey*/
|
|
new(big.Int).Div(s.depositAmount, big.NewInt(1e9)).Uint64(),
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Do the actual deposit
|
|
tx, err := s.makeDeposit(di.PublicKey, di.WithdrawalCredentials, di.Signature, dr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
txMap[key] = tx
|
|
// Store in database
|
|
if err := s.db.AllocateNewPkToPod(ctx, key, podName); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
for {
|
|
time.Sleep(time.Second * blockTime)
|
|
receivedKeys, err := s.checkDepositTxs(ctx, txMap)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
pks = append(pks, receivedKeys...)
|
|
if len(txMap) == 0 {
|
|
break
|
|
}
|
|
}
|
|
|
|
return &pb.PrivateKeys{PrivateKeys: pks}, nil
|
|
}
|
|
|
|
func (s *server) checkDepositTxs(ctx context.Context, txMap map[*keystore.Key]*types.Transaction) ([][]byte,
|
|
error) {
|
|
pks := make([][]byte, 0, len(txMap))
|
|
for k, tx := range txMap {
|
|
receipt, err := s.client.TransactionReceipt(ctx, tx.Hash())
|
|
if errors.Is(err, ethereum.NotFound) {
|
|
// tx still not processed yet.
|
|
continue
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if receipt.Status == types.ReceiptStatusFailed {
|
|
delete(txMap, k)
|
|
continue
|
|
}
|
|
// append key if tx succeeded.
|
|
pks = append(pks, k.SecretKey.Marshal())
|
|
delete(txMap, k)
|
|
}
|
|
return pks, nil
|
|
}
|