ceremonyclient/node/consensus/ceremony/broadcast_messaging.go

package ceremony

import (
	"strings"

	"github.com/iden3/go-iden3-crypto/poseidon"
	"github.com/pkg/errors"
	"go.uber.org/zap"
	"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/protobufs"
)

func (e *CeremonyDataClockConsensusEngine) handleMessage(
	message *pb.Message,
) error {
	e.logger.Debug(
		"received message",
		zap.Binary("data", message.Data),
		zap.Binary("from", message.From),
		zap.Binary("signature", message.Signature),
	)

	go func() {
		e.messageProcessorCh <- message
	}()

	return nil
}

func (e *CeremonyDataClockConsensusEngine) publishProof(
	frame *protobufs.ClockFrame,
) error {
	e.logger.Debug(
		"publishing frame and aggregations",
		zap.Uint64("frame_number", frame.FrameNumber),
	)
	head, err := e.dataTimeReel.Head()
	if err != nil {
		panic(err)
	}

	peers, max, err := e.GetMostAheadPeer()
	if err != nil || len(peers) == 0 || head.FrameNumber+3 > max {
		if err := e.publishMessage(e.filter, frame); err != nil {
			return errors.Wrap(
				err,
				"publish proof",
			)
		}
	}

	return nil
}

func (e *CeremonyDataClockConsensusEngine) publishMessage(
	filter []byte,
	message proto.Message,
) error {
	any := &anypb.Any{}
	if err := any.MarshalFrom(message); err != nil {
		return errors.Wrap(err, "publish message")
	}

	any.TypeUrl = strings.Replace(
		any.TypeUrl,
		"type.googleapis.com",
		"types.quilibrium.com",
		1,
	)

	payload, err := proto.Marshal(any)
	if err != nil {
		return errors.Wrap(err, "publish message")
	}

	h, err := poseidon.HashBytes(payload)
	if err != nil {
		return errors.Wrap(err, "publish message")
	}

	msg := &protobufs.Message{
		Hash:    h.Bytes(),
		Address: e.provingKeyAddress,
		Payload: payload,
	}
	data, err := proto.Marshal(msg)
	if err != nil {
		return errors.Wrap(err, "publish message")
	}
	return e.pubSub.PublishToBitmask(filter, data)
}