mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-11 02:35:18 +00:00
423 lines
10 KiB
Go
423 lines
10 KiB
Go
package ceremony
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import (
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"bytes"
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"encoding/binary"
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"strings"
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"time"
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"github.com/iden3/go-iden3-crypto/poseidon"
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pcrypto "github.com/libp2p/go-libp2p/core/crypto"
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"github.com/libp2p/go-libp2p/core/peer"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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"golang.org/x/sync/errgroup"
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"google.golang.org/protobuf/proto"
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"google.golang.org/protobuf/types/known/anypb"
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"source.quilibrium.com/quilibrium/monorepo/go-libp2p-blossomsub/pb"
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"source.quilibrium.com/quilibrium/monorepo/node/consensus"
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"source.quilibrium.com/quilibrium/monorepo/node/keys"
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"source.quilibrium.com/quilibrium/monorepo/node/protobufs"
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)
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func (e *CeremonyDataClockConsensusEngine) handleMessage(
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message *pb.Message,
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) error {
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e.logger.Debug(
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"received message",
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zap.Binary("data", message.Data),
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zap.Binary("from", message.From),
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zap.Binary("signature", message.Signature),
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)
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msg := &protobufs.Message{}
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if err := proto.Unmarshal(message.Data, msg); err != nil {
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return errors.Wrap(err, "handle message")
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}
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eg := errgroup.Group{}
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eg.SetLimit(len(e.executionEngines))
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for name := range e.executionEngines {
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name := name
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eg.Go(func() error {
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messages, err := e.executionEngines[name].ProcessMessage(
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msg.Address,
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msg,
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)
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if err != nil {
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e.logger.Debug(
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"could not process message for engine",
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zap.Error(err),
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zap.String("engine_name", name),
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)
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return errors.Wrap(err, "handle message")
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}
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for _, appMessage := range messages {
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appMsg := &anypb.Any{}
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err := proto.Unmarshal(appMessage.Payload, appMsg)
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if err != nil {
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e.logger.Error(
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"could not unmarshal app message",
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zap.Error(err),
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zap.String("engine_name", name),
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)
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return errors.Wrap(err, "handle message")
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}
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switch appMsg.TypeUrl {
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case protobufs.CeremonyLobbyStateTransitionType:
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t := &protobufs.CeremonyLobbyStateTransition{}
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err := proto.Unmarshal(appMsg.Value, t)
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if err != nil {
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return errors.Wrap(err, "handle message")
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}
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if err := e.handleCeremonyLobbyStateTransition(t); err != nil {
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return errors.Wrap(err, "handle message")
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}
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}
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}
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return nil
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})
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}
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if err := eg.Wait(); err != nil {
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e.logger.Debug("rejecting invalid message", zap.Error(err))
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return nil
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}
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any := &anypb.Any{}
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if err := proto.Unmarshal(msg.Payload, any); err != nil {
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return errors.Wrap(err, "handle message")
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}
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switch any.TypeUrl {
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case protobufs.ClockFrameType:
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e.peerMapMx.Lock()
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if peer, ok := e.peerMap[string(message.From)]; !ok ||
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bytes.Compare(peer.version, consensus.GetMinimumVersion()) < 0 {
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return nil
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}
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e.peerMapMx.Unlock()
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if err := e.handleClockFrameData(
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message.From,
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msg.Address,
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any,
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false,
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); err != nil {
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return errors.Wrap(err, "handle message")
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}
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case protobufs.CeremonyPeerListAnnounceType:
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if err := e.handleCeremonyPeerListAnnounce(
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message.From,
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msg.Address,
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any,
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); err != nil {
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return errors.Wrap(err, "handle message")
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}
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}
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return nil
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}
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func (e *CeremonyDataClockConsensusEngine) handleCeremonyPeerListAnnounce(
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peerID []byte,
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address []byte,
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any *anypb.Any,
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) error {
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announce := &protobufs.CeremonyPeerListAnnounce{}
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if err := any.UnmarshalTo(announce); err != nil {
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return errors.Wrap(err, "handle ceremony peer list announce")
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}
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e.peerAnnounceMapMx.Lock()
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e.peerAnnounceMap[string(peerID)] = announce
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e.peerAnnounceMapMx.Unlock()
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e.peerMapMx.Lock()
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for _, p := range announce.PeerList {
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if _, ok := e.uncooperativePeersMap[string(p.PeerId)]; ok {
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continue
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}
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if bytes.Equal(p.PeerId, e.pubSub.GetPeerID()) {
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continue
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}
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if p.PublicKey == nil || p.Signature == nil || p.Version == nil {
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continue
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}
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if p.PublicKey != nil && p.Signature != nil && p.Version != nil {
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key, err := pcrypto.UnmarshalEd448PublicKey(p.PublicKey)
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if err != nil {
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e.logger.Warn(
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"peer announcement contained invalid pubkey",
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zap.Binary("public_key", p.PublicKey),
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)
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continue
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}
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if !(peer.ID(p.PeerId)).MatchesPublicKey(key) {
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e.logger.Warn(
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"peer announcement peer id does not match pubkey",
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zap.Binary("peer_id", p.PeerId),
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zap.Binary("public_key", p.PublicKey),
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)
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continue
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}
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msg := binary.BigEndian.AppendUint64([]byte{}, p.MaxFrame)
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msg = append(msg, p.Version...)
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msg = binary.BigEndian.AppendUint64(msg, uint64(p.Timestamp))
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b, err := key.Verify(msg, p.Signature)
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if err != nil || !b {
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e.logger.Warn(
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"peer provided invalid signature",
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zap.Binary("msg", msg),
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zap.Binary("public_key", p.PublicKey),
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zap.Binary("signature", p.Signature),
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)
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continue
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}
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if bytes.Compare(p.Version, consensus.GetMinimumVersion()) < 0 &&
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p.Timestamp > consensus.GetMinimumVersionCutoff().UnixMilli() {
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e.logger.Debug(
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"peer provided outdated version, penalizing app score",
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zap.Binary("peer_id", p.PeerId),
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)
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e.pubSub.SetPeerScore(p.PeerId, -100)
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continue
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}
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}
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multiaddr := e.pubSub.GetMultiaddrOfPeer(p.PeerId)
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e.pubSub.SetPeerScore(p.PeerId, 10)
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existing, ok := e.peerMap[string(p.PeerId)]
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if ok {
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if existing.signature != nil && p.Signature == nil {
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continue
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}
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if existing.publicKey != nil && p.PublicKey == nil {
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continue
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}
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if existing.version != nil && p.Version == nil {
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continue
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}
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if existing.timestamp > p.Timestamp {
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continue
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}
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}
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e.peerMap[string(p.PeerId)] = &peerInfo{
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peerId: p.PeerId,
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multiaddr: multiaddr,
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maxFrame: p.MaxFrame,
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direct: bytes.Equal(p.PeerId, peerID),
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lastSeen: time.Now().Unix(),
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timestamp: p.Timestamp,
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version: p.Version,
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signature: p.Signature,
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publicKey: p.PublicKey,
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}
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}
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e.peerMapMx.Unlock()
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return nil
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}
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func (e *CeremonyDataClockConsensusEngine) handleCeremonyLobbyStateTransition(
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transition *protobufs.CeremonyLobbyStateTransition,
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) error {
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if len(transition.TransitionInputs) != len(transition.TypeUrls) {
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return errors.Wrap(
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errors.New("invalid state transition"),
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"handle ceremony lobby state transition",
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)
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}
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e.stagedLobbyStateTransitionsMx.Lock()
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if e.stagedLobbyStateTransitions == nil {
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e.stagedLobbyStateTransitions = &protobufs.CeremonyLobbyStateTransition{}
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}
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found := false
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for _, ti := range e.stagedLobbyStateTransitions.TransitionInputs {
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for _, nti := range transition.TransitionInputs {
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if bytes.Equal(ti, nti) {
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found = true
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}
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}
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}
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if !found {
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for i := range transition.TransitionInputs {
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e.stagedLobbyStateTransitions.TypeUrls = append(
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e.stagedLobbyStateTransitions.TypeUrls,
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transition.TypeUrls[i],
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)
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e.stagedLobbyStateTransitions.TransitionInputs = append(
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e.stagedLobbyStateTransitions.TransitionInputs,
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transition.TransitionInputs[i],
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)
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}
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}
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e.stagedLobbyStateTransitionsMx.Unlock()
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return nil
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}
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func (e *CeremonyDataClockConsensusEngine) handleClockFrameData(
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peerID []byte,
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address []byte,
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any *anypb.Any,
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isSync bool,
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) error {
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frame := &protobufs.ClockFrame{}
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if err := any.UnmarshalTo(frame); err != nil {
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return errors.Wrap(err, "handle clock frame data")
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}
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addr, err := poseidon.HashBytes(
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frame.GetPublicKeySignatureEd448().PublicKey.KeyValue,
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)
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if err != nil {
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return errors.Wrap(err, "handle clock frame data")
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}
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prover := e.frameProverTrie.FindNearest(addr.Bytes())
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if !bytes.Equal(prover.External.Key, addr.Bytes()) {
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e.logger.Info(
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"prover not in trie at frame, address may be in fork",
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zap.Binary("address", address),
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zap.Binary("filter", frame.Filter),
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zap.Uint64("frame_number", frame.FrameNumber),
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)
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return nil
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}
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e.logger.Info(
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"got clock frame",
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zap.Binary("address", address),
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zap.Binary("filter", frame.Filter),
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zap.Uint64("frame_number", frame.FrameNumber),
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zap.Int("proof_count", len(frame.AggregateProofs)),
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)
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if err := e.frameProver.VerifyDataClockFrame(frame); err != nil {
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e.logger.Error("could not verify clock frame", zap.Error(err))
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return errors.Wrap(err, "handle clock frame data")
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}
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if err := e.inclusionProver.VerifyFrame(frame); err != nil {
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e.logger.Error("could not verify clock frame", zap.Error(err))
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return errors.Wrap(err, "handle clock frame data")
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}
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e.logger.Info(
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"clock frame was valid",
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zap.Binary("address", address),
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zap.Binary("filter", frame.Filter),
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zap.Uint64("frame_number", frame.FrameNumber),
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)
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e.dataTimeReel.Insert(frame)
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return nil
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}
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func (e *CeremonyDataClockConsensusEngine) publishProof(
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frame *protobufs.ClockFrame,
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) error {
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e.logger.Debug(
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"publishing frame and aggregations",
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zap.Uint64("frame_number", frame.FrameNumber),
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)
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if err := e.publishMessage(e.filter, frame); err != nil {
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return errors.Wrap(
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err,
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"publish proof",
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)
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}
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return nil
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}
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func (e *CeremonyDataClockConsensusEngine) publishMessage(
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filter []byte,
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message proto.Message,
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) error {
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any := &anypb.Any{}
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if err := any.MarshalFrom(message); err != nil {
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return errors.Wrap(err, "publish message")
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}
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any.TypeUrl = strings.Replace(
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any.TypeUrl,
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"type.googleapis.com",
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"types.quilibrium.com",
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1,
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)
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payload, err := proto.Marshal(any)
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if err != nil {
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return errors.Wrap(err, "publish message")
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}
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h, err := poseidon.HashBytes(payload)
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if err != nil {
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return errors.Wrap(err, "publish message")
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}
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msg := &protobufs.Message{
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Hash: h.Bytes(),
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Address: e.provingKeyAddress,
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Payload: payload,
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}
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data, err := proto.Marshal(msg)
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if err != nil {
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return errors.Wrap(err, "publish message")
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}
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return e.pubSub.PublishToBitmask(filter, data)
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}
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func (e *CeremonyDataClockConsensusEngine) createCommunicationKeys() error {
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_, err := e.keyManager.GetAgreementKey("q-ratchet-idk")
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if err != nil {
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if errors.Is(err, keys.KeyNotFoundErr) {
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_, err = e.keyManager.CreateAgreementKey(
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"q-ratchet-idk",
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keys.KeyTypeX448,
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)
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if err != nil {
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return errors.Wrap(err, "announce key bundle")
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}
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} else {
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return errors.Wrap(err, "announce key bundle")
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}
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}
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_, err = e.keyManager.GetAgreementKey("q-ratchet-spk")
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if err != nil {
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if errors.Is(err, keys.KeyNotFoundErr) {
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_, err = e.keyManager.CreateAgreementKey(
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"q-ratchet-spk",
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keys.KeyTypeX448,
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)
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if err != nil {
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return errors.Wrap(err, "announce key bundle")
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}
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} else {
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return errors.Wrap(err, "announce key bundle")
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}
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}
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return nil
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}
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