package ceremony import ( "bytes" "context" "time" "github.com/pkg/errors" "go.uber.org/zap" "go.uber.org/zap/zapcore" "google.golang.org/grpc" "google.golang.org/protobuf/proto" "google.golang.org/protobuf/types/known/anypb" "source.quilibrium.com/quilibrium/monorepo/go-libp2p-blossomsub/pb" "source.quilibrium.com/quilibrium/monorepo/node/execution/ceremony/application" "source.quilibrium.com/quilibrium/monorepo/node/p2p" "source.quilibrium.com/quilibrium/monorepo/node/protobufs" "source.quilibrium.com/quilibrium/monorepo/node/store" ) var ErrNoNewFrames = errors.New("peer reported no frames") func (e *CeremonyDataClockConsensusEngine) handleSync( message *pb.Message, ) error { e.logger.Debug( "received message", zap.Binary("data", message.Data), zap.Binary("from", message.From), zap.Binary("signature", message.Signature), ) if bytes.Equal(message.From, e.pubSub.GetPeerID()) { return nil } msg := &protobufs.Message{} if err := proto.Unmarshal(message.Data, msg); err != nil { return errors.Wrap(err, "handle sync") } any := &anypb.Any{} if err := proto.Unmarshal(msg.Payload, any); err != nil { return errors.Wrap(err, "handle sync") } switch any.TypeUrl { case protobufs.ProvingKeyAnnouncementType: if err := e.handleProvingKey( message.From, msg.Address, any, ); err != nil { return errors.Wrap(err, "handle sync") } case protobufs.KeyBundleAnnouncementType: if err := e.handleKeyBundle( message.From, msg.Address, any, ); err != nil { return errors.Wrap(err, "handle sync") } } return nil } // GetCompressedSyncFrames implements protobufs.CeremonyServiceServer. func (e *CeremonyDataClockConsensusEngine) GetCompressedSyncFrames( request *protobufs.ClockFramesRequest, server protobufs.CeremonyService_GetCompressedSyncFramesServer, ) error { e.logger.Info( "received clock frame request", zap.Uint64("from_frame_number", request.FromFrameNumber), zap.Uint64("to_frame_number", request.ToFrameNumber), ) from := request.FromFrameNumber frame, _, err := e.clockStore.GetDataClockFrame( request.Filter, from, ) if err != nil { if !errors.Is(err, store.ErrNotFound) { e.logger.Error( "peer asked for frame that returned error", zap.Uint64("frame_number", request.FromFrameNumber), ) return errors.Wrap(err, "get compressed sync frames") } else { e.logger.Debug( "peer asked for undiscovered frame", zap.Uint64("frame_number", request.FromFrameNumber), ) if err := server.SendMsg( &protobufs.ClockFramesResponse{ Filter: request.Filter, FromFrameNumber: 0, ToFrameNumber: 0, ClockFrames: []*protobufs.ClockFrame{}, }, ); err != nil { return errors.Wrap(err, "get compressed sync frames") } return nil } } parent := request.ParentSelector if parent != nil { if !bytes.Equal(frame.ParentSelector, parent) { e.logger.Info( "peer specified out of consensus head, seeking backwards for fork", ) } for !bytes.Equal(frame.ParentSelector, parent) { ours, err := e.clockStore.GetParentDataClockFrame( e.filter, frame.FrameNumber-1, frame.ParentSelector, ) if err != nil { from = 1 e.logger.Info("peer fully out of sync, rewinding sync head to start") break } theirs, err := e.clockStore.GetParentDataClockFrame( e.filter, frame.FrameNumber-1, parent, ) if err != nil { from = 1 e.logger.Info("peer fully out of sync, rewinding sync head to start") break } from-- frame = ours parent = theirs.ParentSelector } } max := e.frame to := request.ToFrameNumber for { if to == 0 || to-from > 32 { if max > from+31 { to = from + 32 } else { to = max + 1 } } syncMsg, err := e.clockStore.GetCompressedDataClockFrames( e.filter, from, to, ) if err != nil { return errors.Wrap(err, "get compressed sync frames") } if err := server.SendMsg(syncMsg); err != nil { return errors.Wrap(err, "get compressed sync frames") } if (request.ToFrameNumber == 0 || request.ToFrameNumber > to) && max > to { from = to + 1 if request.ToFrameNumber > to { to = request.ToFrameNumber } else { to = 0 } } else { break } } return nil } func (e *CeremonyDataClockConsensusEngine) decompressAndStoreCandidates( syncMsg *protobufs.CeremonyCompressedSync, loggerFunc func(msg string, fields ...zapcore.Field), ) (*protobufs.ClockFrame, error) { if len(syncMsg.TruncatedClockFrames) == 0 { return nil, ErrNoNewFrames } if len(syncMsg.TruncatedClockFrames) != int( syncMsg.ToFrameNumber-syncMsg.FromFrameNumber+1, ) { return nil, errors.New("invalid continuity for compressed sync response") } var final *protobufs.ClockFrame for _, frame := range syncMsg.TruncatedClockFrames { frame := frame commits := (len(frame.Input) - 516) / 74 loggerFunc( "processing frame", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("aggregate_commits", commits), ) for j := 0; j < commits; j++ { loggerFunc( "processing commit", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), ) commit := frame.Input[516+(j*74) : 516+((j+1)*74)] var aggregateProof *protobufs.InclusionProofsMap for _, a := range syncMsg.Proofs { a := a if bytes.Equal(a.FrameCommit, commit) { loggerFunc( "found matching proof", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), ) aggregateProof = a break } } if aggregateProof == nil { e.logger.Error( "could not find matching proof", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), zap.Binary("proof", aggregateProof.Proof), ) return nil, errors.Wrap( store.ErrInvalidData, "decompress and store candidates", ) } inc := &protobufs.InclusionAggregateProof{ Filter: e.filter, FrameNumber: frame.FrameNumber, InclusionCommitments: []*protobufs.InclusionCommitment{}, Proof: aggregateProof.Proof, } for k, c := range aggregateProof.Commitments { k := k c := c loggerFunc( "adding inclusion commitment", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), zap.Int("inclusion_commit_index", k), zap.String("type_url", c.TypeUrl), ) incCommit := &protobufs.InclusionCommitment{ Filter: e.filter, FrameNumber: frame.FrameNumber, Position: uint32(k), TypeUrl: c.TypeUrl, Data: []byte{}, Commitment: c.Commitment, } var output *protobufs.IntrinsicExecutionOutput if c.TypeUrl == protobufs.IntrinsicExecutionOutputType { output = &protobufs.IntrinsicExecutionOutput{} } for l, h := range c.SegmentHashes { l := l h := h for _, s := range syncMsg.Segments { s := s if bytes.Equal(s.Hash, h) { if output != nil { if l == 0 { loggerFunc( "found first half of matching segment data", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), zap.Int("inclusion_commit_index", k), zap.String("type_url", c.TypeUrl), ) output.Address = s.Data[:32] output.Output = s.Data[32:] } else { loggerFunc( "found second half of matching segment data", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), zap.Int("inclusion_commit_index", k), zap.String("type_url", c.TypeUrl), ) output.Proof = s.Data b, err := proto.Marshal(output) if err != nil { return nil, errors.Wrap( err, "decompress and store candidates", ) } incCommit.Data = b break } } else { loggerFunc( "found matching segment data", zap.Uint64("frame_number", frame.FrameNumber), zap.Int("commit_index", j), zap.Int("inclusion_commit_index", k), zap.String("type_url", c.TypeUrl), ) incCommit.Data = append(incCommit.Data, s.Data...) break } } } } inc.InclusionCommitments = append( inc.InclusionCommitments, incCommit, ) } frame.AggregateProofs = append( frame.AggregateProofs, inc, ) } f, err := proto.Marshal(frame) if err != nil { return nil, errors.Wrap(err, "decompress and store candidates") } any := &anypb.Any{ TypeUrl: protobufs.ClockFrameType, Value: f, } if err = e.handleClockFrameData( e.syncingTarget, application.CEREMONY_ADDRESS, any, true, ); err != nil { return nil, errors.Wrap(err, "decompress and store candidates") } final = frame } loggerFunc( "decompressed and stored sync for range", zap.Uint64("from", syncMsg.FromFrameNumber), zap.Uint64("to", syncMsg.ToFrameNumber), ) return final, nil } type svr struct { protobufs.UnimplementedCeremonyServiceServer svrChan chan protobufs.CeremonyService_GetPublicChannelServer } func (e *svr) GetCompressedSyncFrames( request *protobufs.ClockFramesRequest, server protobufs.CeremonyService_GetCompressedSyncFramesServer, ) error { return errors.New("not supported") } func (e *svr) GetPublicChannel( server protobufs.CeremonyService_GetPublicChannelServer, ) error { go func() { e.svrChan <- server }() <-server.Context().Done() return nil } func (e *CeremonyDataClockConsensusEngine) GetPublicChannelForProvingKey( initiator bool, provingKey []byte, ) (p2p.PublicChannelClient, error) { if initiator { svrChan := make( chan protobufs.CeremonyService_GetPublicChannelServer, ) after := time.After(20 * time.Second) go func() { server := grpc.NewServer( grpc.MaxSendMsgSize(400*1024*1024), grpc.MaxRecvMsgSize(400*1024*1024), ) s := &svr{ svrChan: svrChan, } protobufs.RegisterCeremonyServiceServer(server, s) if err := e.pubSub.StartDirectChannelListener( provingKey, server, ); err != nil { e.logger.Error( "could not get public channel for proving key", zap.Error(err), ) svrChan <- nil } }() select { case s := <-svrChan: return s, nil case <-after: return nil, errors.Wrap( errors.New("timed out"), "get public channel for proving key", ) } } else { cc, err := e.pubSub.GetDirectChannel(provingKey) if err != nil { e.logger.Error( "could not get public channel for proving key", zap.Error(err), ) return nil, nil } client := protobufs.NewCeremonyServiceClient(cc) s, err := client.GetPublicChannel( context.Background(), grpc.MaxCallSendMsgSize(400*1024*1024), grpc.MaxCallRecvMsgSize(400*1024*1024), ) return s, errors.Wrap(err, "get public channel for proving key") } } // GetPublicChannel implements protobufs.CeremonyServiceServer. func (e *CeremonyDataClockConsensusEngine) GetPublicChannel( server protobufs.CeremonyService_GetPublicChannelServer, ) error { return errors.New("not supported") } func (e *CeremonyDataClockConsensusEngine) handleProvingKeyRequest( peerID []byte, address []byte, any *anypb.Any, ) error { if bytes.Equal(peerID, e.pubSub.GetPeerID()) { return nil } request := &protobufs.ProvingKeyRequest{} if err := any.UnmarshalTo(request); err != nil { return nil } if len(request.ProvingKeyBytes) == 0 { e.logger.Debug( "received proving key request for empty key", zap.Binary("peer_id", peerID), zap.Binary("address", address), ) return nil } e.pubSub.Subscribe( append(append([]byte{}, e.filter...), peerID...), e.handleSync, true, ) e.logger.Debug( "received proving key request", zap.Binary("peer_id", peerID), zap.Binary("address", address), zap.Binary("proving_key", request.ProvingKeyBytes), ) var provingKey *protobufs.ProvingKeyAnnouncement inclusion, err := e.keyStore.GetProvingKey(request.ProvingKeyBytes) if err != nil { if !errors.Is(err, store.ErrNotFound) { e.logger.Debug( "peer asked for proving key that returned error", zap.Binary("peer_id", peerID), zap.Binary("address", address), zap.Binary("proving_key", request.ProvingKeyBytes), ) return nil } provingKey, err = e.keyStore.GetStagedProvingKey(request.ProvingKeyBytes) if !errors.Is(err, store.ErrNotFound) { e.logger.Debug( "peer asked for proving key that returned error", zap.Binary("peer_id", peerID), zap.Binary("address", address), zap.Binary("proving_key", request.ProvingKeyBytes), ) return nil } else if err != nil { e.logger.Debug( "peer asked for unknown proving key", zap.Binary("peer_id", peerID), zap.Binary("address", address), zap.Binary("proving_key", request.ProvingKeyBytes), ) return nil } } else { err := proto.Unmarshal(inclusion.Data, provingKey) if err != nil { e.logger.Debug( "inclusion commitment could not be deserialized", zap.Binary("peer_id", peerID), zap.Binary("address", address), zap.Binary("proving_key", request.ProvingKeyBytes), ) return nil } } if err := e.publishMessage( append(append([]byte{}, e.filter...), peerID...), provingKey, ); err != nil { return nil } return nil }