prysm-pulse/beacon-chain/rpc/service.go
Preston Van Loon 05a5bad476
Migrate SubmitAggregateAndProof (#4951)
* Remove unused services, mark everything as deprecated, regen pb.go
* remove some code from cluster pk manager, gazelle
* goimports
* remove mocks
* Update WORKSPACE, deprecate old method, stub new method
* Move implementation to ethereumapis definition
* gofmt
* Add TODO for #4952
* Merge branch 'master' into migrate-submitaggregateandproof
* Update validator client to use new submit aggregate and proof method
* Merge branch 'migrate-submitaggregateandproof' of github.com:prysmaticlabs/prysm into migrate-submitaggregateandproof
* gaz
* rename
* rename
* Merge refs/heads/master into migrate-submitaggregateandproof
* Merge refs/heads/master into migrate-submitaggregateandproof
* Merge refs/heads/master into migrate-submitaggregateandproof
* Merge refs/heads/master into migrate-submitaggregateandproof
* Merge refs/heads/master into migrate-submitaggregateandproof
* fix tests
* Merge branch 'migrate-submitaggregateandproof' of github.com:prysmaticlabs/prysm into migrate-submitaggregateandproof
2020-02-27 20:23:35 +00:00

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// Package rpc defines the services that the beacon-chain uses to communicate via gRPC.
package rpc
import (
"context"
"fmt"
"math/rand"
"net"
"os"
middleware "github.com/grpc-ecosystem/go-grpc-middleware"
recovery "github.com/grpc-ecosystem/go-grpc-middleware/recovery"
grpc_opentracing "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
"github.com/prysmaticlabs/prysm/beacon-chain/cache"
"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
blockfeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/block"
opfeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/operation"
statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
"github.com/prysmaticlabs/prysm/beacon-chain/db"
"github.com/prysmaticlabs/prysm/beacon-chain/operations/attestations"
"github.com/prysmaticlabs/prysm/beacon-chain/operations/slashings"
"github.com/prysmaticlabs/prysm/beacon-chain/operations/voluntaryexits"
"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
"github.com/prysmaticlabs/prysm/beacon-chain/powchain"
"github.com/prysmaticlabs/prysm/beacon-chain/rpc/aggregator"
"github.com/prysmaticlabs/prysm/beacon-chain/rpc/beacon"
"github.com/prysmaticlabs/prysm/beacon-chain/rpc/node"
"github.com/prysmaticlabs/prysm/beacon-chain/rpc/validator"
"github.com/prysmaticlabs/prysm/beacon-chain/sync"
pbp2p "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
pb "github.com/prysmaticlabs/prysm/proto/beacon/rpc/v1"
slashpb "github.com/prysmaticlabs/prysm/proto/slashing"
"github.com/prysmaticlabs/prysm/shared/featureconfig"
"github.com/prysmaticlabs/prysm/shared/params"
"github.com/prysmaticlabs/prysm/shared/traceutil"
"github.com/sirupsen/logrus"
"go.opencensus.io/plugin/ocgrpc"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/reflection"
)
var log logrus.FieldLogger
func init() {
log = logrus.WithField("prefix", "rpc")
rand.Seed(int64(os.Getpid()))
}
// Service defining an RPC server for a beacon node.
type Service struct {
ctx context.Context
cancel context.CancelFunc
beaconDB db.HeadAccessDatabase
headFetcher blockchain.HeadFetcher
forkFetcher blockchain.ForkFetcher
finalizationFetcher blockchain.FinalizationFetcher
participationFetcher blockchain.ParticipationFetcher
genesisTimeFetcher blockchain.TimeFetcher
attestationReceiver blockchain.AttestationReceiver
blockReceiver blockchain.BlockReceiver
powChainService powchain.Chain
chainStartFetcher powchain.ChainStartFetcher
mockEth1Votes bool
attestationsPool attestations.Pool
exitPool *voluntaryexits.Pool
slashingsPool *slashings.Pool
syncService sync.Checker
host string
port string
listener net.Listener
withCert string
withKey string
grpcServer *grpc.Server
canonicalStateChan chan *pbp2p.BeaconState
incomingAttestation chan *ethpb.Attestation
credentialError error
p2p p2p.Broadcaster
peersFetcher p2p.PeersProvider
depositFetcher depositcache.DepositFetcher
pendingDepositFetcher depositcache.PendingDepositsFetcher
stateNotifier statefeed.Notifier
blockNotifier blockfeed.Notifier
operationNotifier opfeed.Notifier
slasherConn *grpc.ClientConn
slasherProvider string
slasherCert string
slasherCredentialError error
slasherClient slashpb.SlasherClient
}
// Config options for the beacon node RPC server.
type Config struct {
Host string
Port string
CertFlag string
KeyFlag string
BeaconDB db.HeadAccessDatabase
HeadFetcher blockchain.HeadFetcher
ForkFetcher blockchain.ForkFetcher
FinalizationFetcher blockchain.FinalizationFetcher
ParticipationFetcher blockchain.ParticipationFetcher
AttestationReceiver blockchain.AttestationReceiver
BlockReceiver blockchain.BlockReceiver
POWChainService powchain.Chain
ChainStartFetcher powchain.ChainStartFetcher
GenesisTimeFetcher blockchain.TimeFetcher
MockEth1Votes bool
AttestationsPool attestations.Pool
ExitPool *voluntaryexits.Pool
SlashingsPool *slashings.Pool
SyncService sync.Checker
Broadcaster p2p.Broadcaster
PeersFetcher p2p.PeersProvider
DepositFetcher depositcache.DepositFetcher
PendingDepositFetcher depositcache.PendingDepositsFetcher
SlasherProvider string
SlasherCert string
StateNotifier statefeed.Notifier
BlockNotifier blockfeed.Notifier
OperationNotifier opfeed.Notifier
}
// NewService instantiates a new RPC service instance that will
// be registered into a running beacon node.
func NewService(ctx context.Context, cfg *Config) *Service {
ctx, cancel := context.WithCancel(ctx)
return &Service{
ctx: ctx,
cancel: cancel,
beaconDB: cfg.BeaconDB,
headFetcher: cfg.HeadFetcher,
forkFetcher: cfg.ForkFetcher,
finalizationFetcher: cfg.FinalizationFetcher,
participationFetcher: cfg.ParticipationFetcher,
genesisTimeFetcher: cfg.GenesisTimeFetcher,
attestationReceiver: cfg.AttestationReceiver,
blockReceiver: cfg.BlockReceiver,
p2p: cfg.Broadcaster,
peersFetcher: cfg.PeersFetcher,
powChainService: cfg.POWChainService,
chainStartFetcher: cfg.ChainStartFetcher,
mockEth1Votes: cfg.MockEth1Votes,
attestationsPool: cfg.AttestationsPool,
exitPool: cfg.ExitPool,
slashingsPool: cfg.SlashingsPool,
syncService: cfg.SyncService,
host: cfg.Host,
port: cfg.Port,
withCert: cfg.CertFlag,
withKey: cfg.KeyFlag,
depositFetcher: cfg.DepositFetcher,
pendingDepositFetcher: cfg.PendingDepositFetcher,
canonicalStateChan: make(chan *pbp2p.BeaconState, params.BeaconConfig().DefaultBufferSize),
incomingAttestation: make(chan *ethpb.Attestation, params.BeaconConfig().DefaultBufferSize),
stateNotifier: cfg.StateNotifier,
blockNotifier: cfg.BlockNotifier,
operationNotifier: cfg.OperationNotifier,
slasherProvider: cfg.SlasherProvider,
slasherCert: cfg.SlasherCert,
}
}
// Start the gRPC server.
func (s *Service) Start() {
address := fmt.Sprintf("%s:%s", s.host, s.port)
lis, err := net.Listen("tcp", address)
if err != nil {
log.Errorf("Could not listen to port in Start() %s: %v", address, err)
}
s.listener = lis
log.WithField("address", address).Info("RPC-API listening on port")
opts := []grpc.ServerOption{
grpc.StatsHandler(&ocgrpc.ServerHandler{}),
grpc.StreamInterceptor(middleware.ChainStreamServer(
recovery.StreamServerInterceptor(
recovery.WithRecoveryHandlerContext(traceutil.RecoveryHandlerFunc),
),
grpc_prometheus.StreamServerInterceptor,
grpc_opentracing.StreamServerInterceptor(),
)),
grpc.UnaryInterceptor(middleware.ChainUnaryServer(
recovery.UnaryServerInterceptor(
recovery.WithRecoveryHandlerContext(traceutil.RecoveryHandlerFunc),
),
grpc_prometheus.UnaryServerInterceptor,
grpc_opentracing.UnaryServerInterceptor(),
)),
}
grpc_prometheus.EnableHandlingTimeHistogram()
// TODO(#791): Utilize a certificate for secure connections
// between beacon nodes and validator clients.
if s.withCert != "" && s.withKey != "" {
creds, err := credentials.NewServerTLSFromFile(s.withCert, s.withKey)
if err != nil {
log.Errorf("Could not load TLS keys: %s", err)
s.credentialError = err
}
opts = append(opts, grpc.Creds(creds))
} else {
log.Warn("You are using an insecure gRPC connection! Provide a certificate and key to connect securely")
}
s.grpcServer = grpc.NewServer(opts...)
genesisTime := s.genesisTimeFetcher.GenesisTime()
validatorServer := &validator.Server{
Ctx: s.ctx,
BeaconDB: s.beaconDB,
AttestationCache: cache.NewAttestationCache(),
AttPool: s.attestationsPool,
ExitPool: s.exitPool,
HeadFetcher: s.headFetcher,
ForkFetcher: s.forkFetcher,
FinalizationFetcher: s.finalizationFetcher,
GenesisTimeFetcher: s.genesisTimeFetcher,
CanonicalStateChan: s.canonicalStateChan,
BlockFetcher: s.powChainService,
DepositFetcher: s.depositFetcher,
ChainStartFetcher: s.chainStartFetcher,
Eth1InfoFetcher: s.powChainService,
SyncChecker: s.syncService,
StateNotifier: s.stateNotifier,
BlockNotifier: s.blockNotifier,
OperationNotifier: s.operationNotifier,
P2P: s.p2p,
BlockReceiver: s.blockReceiver,
MockEth1Votes: s.mockEth1Votes,
Eth1BlockFetcher: s.powChainService,
PendingDepositsFetcher: s.pendingDepositFetcher,
GenesisTime: genesisTime,
SlashingsPool: s.slashingsPool,
}
nodeServer := &node.Server{
BeaconDB: s.beaconDB,
Server: s.grpcServer,
SyncChecker: s.syncService,
GenesisTimeFetcher: s.genesisTimeFetcher,
PeersFetcher: s.peersFetcher,
}
beaconChainServer := &beacon.Server{
Ctx: s.ctx,
BeaconDB: s.beaconDB,
AttestationsPool: s.attestationsPool,
SlashingsPool: s.slashingsPool,
HeadFetcher: s.headFetcher,
FinalizationFetcher: s.finalizationFetcher,
ParticipationFetcher: s.participationFetcher,
ChainStartFetcher: s.chainStartFetcher,
DepositFetcher: s.depositFetcher,
BlockFetcher: s.powChainService,
CanonicalStateChan: s.canonicalStateChan,
GenesisTimeFetcher: s.genesisTimeFetcher,
StateNotifier: s.stateNotifier,
BlockNotifier: s.blockNotifier,
AttestationNotifier: s.operationNotifier,
}
aggregatorServer := &aggregator.Server{ValidatorServer: validatorServer}
pb.RegisterAggregatorServiceServer(s.grpcServer, aggregatorServer)
ethpb.RegisterNodeServer(s.grpcServer, nodeServer)
ethpb.RegisterBeaconChainServer(s.grpcServer, beaconChainServer)
ethpb.RegisterBeaconNodeValidatorServer(s.grpcServer, validatorServer)
// Register reflection service on gRPC server.
reflection.Register(s.grpcServer)
go func() {
if s.listener != nil {
if err := s.grpcServer.Serve(s.listener); err != nil {
log.Errorf("Could not serve gRPC: %v", err)
}
}
}()
if featureconfig.Get().EnableSlasherConnection {
s.startSlasherClient()
}
}
func (s *Service) startSlasherClient() {
var dialOpt grpc.DialOption
if s.slasherCert != "" {
creds, err := credentials.NewClientTLSFromFile(s.slasherCert, "")
if err != nil {
log.Errorf("Could not get valid credentials: %v", err)
s.slasherCredentialError = err
}
dialOpt = grpc.WithTransportCredentials(creds)
} else {
dialOpt = grpc.WithInsecure()
log.Warn("You are using an insecure gRPC connection! Please provide a certificate and key to use a secure connection.")
}
slasherOpts := []grpc.DialOption{
dialOpt,
grpc.WithStatsHandler(&ocgrpc.ClientHandler{}),
grpc.WithStreamInterceptor(middleware.ChainStreamClient(
grpc_opentracing.StreamClientInterceptor(),
grpc_prometheus.StreamClientInterceptor,
)),
grpc.WithUnaryInterceptor(middleware.ChainUnaryClient(
grpc_opentracing.UnaryClientInterceptor(),
grpc_prometheus.UnaryClientInterceptor,
)),
}
conn, err := grpc.DialContext(s.ctx, s.slasherProvider, slasherOpts...)
if err != nil {
log.Errorf("Could not dial endpoint: %s, %v", s.slasherProvider, err)
return
}
log.Info("Successfully started hash slinging slasher© gRPC connection")
s.slasherConn = conn
s.slasherClient = slashpb.NewSlasherClient(s.slasherConn)
}
// Stop the service.
func (s *Service) Stop() error {
s.cancel()
if s.listener != nil {
s.grpcServer.GracefulStop()
log.Debug("Initiated graceful stop of gRPC server")
}
if s.slasherConn != nil {
s.slasherConn.Close()
}
return nil
}
// Status returns nil or credentialError
func (s *Service) Status() error {
if s.credentialError != nil {
return s.credentialError
}
if s.slasherCredentialError != nil {
return s.slasherCredentialError
}
return nil
}