mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-11 02:35:18 +00:00
460 lines
12 KiB
Go
460 lines
12 KiB
Go
package ceremony
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import (
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"bytes"
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"context"
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"io"
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"time"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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"google.golang.org/protobuf/proto"
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"source.quilibrium.com/quilibrium/monorepo/node/consensus"
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qcrypto "source.quilibrium.com/quilibrium/monorepo/node/crypto"
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"source.quilibrium.com/quilibrium/monorepo/node/execution/intrinsics/ceremony/application"
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"source.quilibrium.com/quilibrium/monorepo/node/p2p"
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"source.quilibrium.com/quilibrium/monorepo/node/protobufs"
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)
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func (e *CeremonyDataClockConsensusEngine) prove(
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previousFrame *protobufs.ClockFrame,
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) (*protobufs.ClockFrame, error) {
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if !e.frameProverTrie.Contains(e.provingKeyAddress) {
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e.stagedLobbyStateTransitionsMx.Lock()
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e.stagedLobbyStateTransitions = &protobufs.CeremonyLobbyStateTransition{}
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e.stagedLobbyStateTransitionsMx.Unlock()
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e.state = consensus.EngineStateCollecting
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return previousFrame, nil
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}
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e.stagedLobbyStateTransitionsMx.Lock()
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executionOutput := &protobufs.IntrinsicExecutionOutput{}
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app, err := application.MaterializeApplicationFromFrame(previousFrame)
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if err != nil {
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e.stagedLobbyStateTransitions = &protobufs.CeremonyLobbyStateTransition{}
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e.stagedLobbyStateTransitionsMx.Unlock()
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return nil, errors.Wrap(err, "prove")
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}
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if e.stagedLobbyStateTransitions == nil {
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e.stagedLobbyStateTransitions = &protobufs.CeremonyLobbyStateTransition{}
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}
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e.logger.Info(
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"proving new frame",
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zap.Int("state_transitions", len(e.stagedLobbyStateTransitions.TypeUrls)),
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)
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var validLobbyTransitions *protobufs.CeremonyLobbyStateTransition
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var skippedTransition *protobufs.CeremonyLobbyStateTransition
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app, validLobbyTransitions, skippedTransition, err = app.ApplyTransition(
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previousFrame.FrameNumber,
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e.stagedLobbyStateTransitions,
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true,
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)
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if err != nil {
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e.stagedLobbyStateTransitions = &protobufs.CeremonyLobbyStateTransition{}
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e.stagedLobbyStateTransitionsMx.Unlock()
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return nil, errors.Wrap(err, "prove")
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}
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e.stagedLobbyStateTransitions = skippedTransition
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defer e.stagedLobbyStateTransitionsMx.Unlock()
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lobbyState, err := app.MaterializeLobbyStateFromApplication()
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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executionOutput.Address = application.CEREMONY_ADDRESS
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executionOutput.Output, err = proto.Marshal(lobbyState)
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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executionOutput.Proof, err = proto.Marshal(validLobbyTransitions)
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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data, err := proto.Marshal(executionOutput)
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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e.logger.Debug("encoded execution output")
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commitment, err := e.inclusionProver.Commit(
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data,
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protobufs.IntrinsicExecutionOutputType,
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)
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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e.logger.Debug("creating kzg proof")
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proof, err := e.inclusionProver.ProveAggregate(
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[]*qcrypto.InclusionCommitment{commitment},
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)
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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e.logger.Debug("finalizing execution proof")
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frame, err := e.frameProver.ProveDataClockFrame(
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previousFrame,
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[][]byte{proof.AggregateCommitment},
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[]*protobufs.InclusionAggregateProof{
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{
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Filter: e.filter,
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FrameNumber: previousFrame.FrameNumber + 1,
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InclusionCommitments: []*protobufs.InclusionCommitment{
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{
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Filter: e.filter,
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FrameNumber: previousFrame.FrameNumber + 1,
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TypeUrl: proof.InclusionCommitments[0].TypeUrl,
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Commitment: proof.InclusionCommitments[0].Commitment,
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Data: data,
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Position: 0,
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},
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},
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Proof: proof.Proof,
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},
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},
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e.provingKey,
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time.Now().UnixMilli(),
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e.difficulty,
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)
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if err != nil {
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return nil, errors.Wrap(err, "prove")
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}
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e.logger.Info(
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"returning new proven frame",
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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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zap.Int("commitment_count", len(frame.Input[516:])/74),
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)
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return frame, nil
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}
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func (e *CeremonyDataClockConsensusEngine) GetMostAheadPeer() (
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[]byte,
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uint64,
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error,
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) {
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frame, err := e.dataTimeReel.Head()
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if err != nil {
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panic(err)
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}
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e.logger.Info(
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"checking peer list",
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zap.Int("peers", len(e.peerMap)),
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zap.Int("uncooperative_peers", len(e.uncooperativePeersMap)),
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zap.Uint64("current_head_frame", frame.FrameNumber),
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)
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max := frame.FrameNumber
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var peer []byte = nil
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e.peerMapMx.Lock()
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for _, v := range e.peerMap {
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_, ok := e.uncooperativePeersMap[string(v.peerId)]
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if v.maxFrame > max &&
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v.timestamp > consensus.GetMinimumVersionCutoff().UnixMilli() &&
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bytes.Compare(v.version, consensus.GetMinimumVersion()) >= 0 && !ok {
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peer = v.peerId
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max = v.maxFrame
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}
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}
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e.peerMapMx.Unlock()
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if peer == nil {
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return nil, 0, p2p.ErrNoPeersAvailable
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}
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return peer, max, nil
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}
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func (e *CeremonyDataClockConsensusEngine) sync(
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currentLatest *protobufs.ClockFrame,
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maxFrame uint64,
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peerId []byte,
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) (*protobufs.ClockFrame, error) {
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latest := currentLatest
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e.logger.Info("polling peer for new frames", zap.Binary("peer_id", peerId))
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cc, err := e.pubSub.GetDirectChannel(peerId, "")
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if err != nil {
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e.logger.Error(
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"could not establish direct channel",
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zap.Error(err),
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)
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e.peerMapMx.Lock()
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if _, ok := e.peerMap[string(peerId)]; ok {
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e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
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e.uncooperativePeersMap[string(peerId)].timestamp = time.Now().UnixMilli()
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delete(e.peerMap, string(peerId))
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}
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e.peerMapMx.Unlock()
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return latest, errors.Wrap(err, "sync")
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}
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client := protobufs.NewCeremonyServiceClient(cc)
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from := latest.FrameNumber
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if from == 0 {
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from = 1
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}
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rangeParentSelectors := []*protobufs.ClockFrameParentSelectors{}
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if from > 128 {
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rangeSubtract := uint64(16)
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for {
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if from <= rangeSubtract {
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break
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}
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parentNumber := from - uint64(rangeSubtract)
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rangeSubtract *= 2
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parent, _, err := e.clockStore.GetDataClockFrame(
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e.filter,
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parentNumber,
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true,
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)
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if err != nil {
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break
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}
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parentSelector, err := parent.GetSelector()
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if err != nil {
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panic(err)
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}
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rangeParentSelectors = append(
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rangeParentSelectors,
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&protobufs.ClockFrameParentSelectors{
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FrameNumber: parentNumber,
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ParentSelector: parentSelector.FillBytes(make([]byte, 32)),
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},
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)
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}
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}
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s, err := client.NegotiateCompressedSyncFrames(
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context.Background(),
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grpc.MaxCallRecvMsgSize(600*1024*1024),
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)
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if err != nil {
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e.logger.Debug(
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"received error from peer",
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zap.Error(err),
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)
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e.peerMapMx.Lock()
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if _, ok := e.peerMap[string(peerId)]; ok {
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e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
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e.uncooperativePeersMap[string(peerId)].timestamp = time.Now().UnixMilli()
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delete(e.peerMap, string(peerId))
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}
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e.peerMapMx.Unlock()
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return latest, errors.Wrap(err, "sync")
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}
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err = s.Send(&protobufs.CeremonyCompressedSyncRequestMessage{
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SyncMessage: &protobufs.CeremonyCompressedSyncRequestMessage_Preflight{
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Preflight: &protobufs.ClockFramesPreflight{
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RangeParentSelectors: rangeParentSelectors,
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},
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},
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})
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if err != nil {
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return latest, errors.Wrap(err, "sync")
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}
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syncMsg, err := s.Recv()
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if err != nil {
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return latest, errors.Wrap(err, "sync")
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}
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preflight, ok := syncMsg.
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SyncMessage.(*protobufs.CeremonyCompressedSyncResponseMessage_Preflight)
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if !ok {
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s.CloseSend()
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return latest, errors.Wrap(
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errors.New("preflight message invalid"),
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"sync",
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)
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}
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// loop through parent selectors, set found to first match, and if subsequent
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// matches fail to be found, cancel the search, start from 1.
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found := uint64(0)
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parentSelector := make([]byte, 32)
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for _, selector := range preflight.Preflight.RangeParentSelectors {
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match, err := e.clockStore.GetParentDataClockFrame(
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e.filter,
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selector.FrameNumber,
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selector.ParentSelector,
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true,
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)
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if err != nil && found == 0 {
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continue
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}
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if err != nil && found != 0 {
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found = 1
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e.logger.Info("could not find interstitial frame, setting search to 1")
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break
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}
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if match != nil && found == 0 {
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found = match.FrameNumber
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parentSelector = match.ParentSelector
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}
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}
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if found != 0 {
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from = found
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}
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err = s.Send(&protobufs.CeremonyCompressedSyncRequestMessage{
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SyncMessage: &protobufs.CeremonyCompressedSyncRequestMessage_Request{
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Request: &protobufs.ClockFramesRequest{
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Filter: e.filter,
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FromFrameNumber: from,
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ToFrameNumber: 0,
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ParentSelector: parentSelector,
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},
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},
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})
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if err != nil {
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return latest, errors.Wrap(err, "sync")
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}
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for syncMsg, err = s.Recv(); err == nil; syncMsg, err = s.Recv() {
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sync, ok := syncMsg.
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SyncMessage.(*protobufs.CeremonyCompressedSyncResponseMessage_Response)
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if !ok {
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return latest, errors.Wrap(
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errors.New("response message invalid"),
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"sync",
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)
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}
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response := sync.Response
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e.logger.Info(
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"received compressed sync frame",
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zap.Uint64("from", response.FromFrameNumber),
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zap.Uint64("to", response.ToFrameNumber),
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zap.Int("frames", len(response.TruncatedClockFrames)),
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zap.Int("proofs", len(response.Proofs)),
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)
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// This can only happen if we get a peer with state that was initially
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// farther ahead, but something happened. However, this has a sticking
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// effect that doesn't go away for them until they're caught up again,
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// so let's not penalize their score and make everyone else suffer,
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// let's just move on:
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if response.FromFrameNumber == 0 && response.ToFrameNumber == 0 {
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if err := cc.Close(); err != nil {
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e.logger.Error("error while closing connection", zap.Error(err))
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}
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return currentLatest, errors.Wrap(ErrNoNewFrames, "sync")
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}
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var next *protobufs.ClockFrame
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if next, err = e.decompressAndStoreCandidates(
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peerId,
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response,
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); err != nil && !errors.Is(err, ErrNoNewFrames) {
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e.logger.Error(
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"could not decompress and store candidate",
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zap.Error(err),
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)
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e.peerMapMx.Lock()
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if _, ok := e.peerMap[string(peerId)]; ok {
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e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
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e.uncooperativePeersMap[string(peerId)].timestamp = time.Now().
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UnixMilli()
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delete(e.peerMap, string(peerId))
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}
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e.peerMapMx.Unlock()
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if err := cc.Close(); err != nil {
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e.logger.Error("error while closing connection", zap.Error(err))
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}
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return currentLatest, errors.Wrap(err, "sync")
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}
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if next != nil {
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latest = next
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}
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}
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if err != nil && err != io.EOF && !errors.Is(err, ErrNoNewFrames) {
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e.logger.Debug("error while receiving sync", zap.Error(err))
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if err := cc.Close(); err != nil {
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e.logger.Error("error while closing connection", zap.Error(err))
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}
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e.peerMapMx.Lock()
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if _, ok := e.peerMap[string(peerId)]; ok {
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e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
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e.uncooperativePeersMap[string(peerId)].timestamp = time.Now().UnixMilli()
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delete(e.peerMap, string(peerId))
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}
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e.peerMapMx.Unlock()
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return latest, errors.Wrap(err, "sync")
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}
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e.logger.Info(
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"received new leading frame",
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zap.Uint64("frame_number", latest.FrameNumber),
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)
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if err := cc.Close(); err != nil {
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e.logger.Error("error while closing connection", zap.Error(err))
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}
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return latest, nil
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}
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func (e *CeremonyDataClockConsensusEngine) collect(
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currentFramePublished *protobufs.ClockFrame,
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) (*protobufs.ClockFrame, error) {
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e.logger.Info("collecting vdf proofs")
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latest := currentFramePublished
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if e.syncingStatus == SyncStatusFailed {
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e.syncingStatus = SyncStatusNotSyncing
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}
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// With the increase of network size, constrain down to top thirty
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for i := 0; i < 30; i++ {
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peerId, maxFrame, err := e.GetMostAheadPeer()
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if err != nil {
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e.logger.Warn("no peers available, skipping sync")
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break
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} else if peerId == nil {
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e.logger.Info("currently up to date, skipping sync")
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break
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} else if maxFrame-2 > latest.FrameNumber {
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latest, err = e.sync(latest, maxFrame, peerId)
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if err == nil {
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break
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}
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}
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}
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if latest.FrameNumber < currentFramePublished.FrameNumber {
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latest = currentFramePublished
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}
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e.logger.Info(
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"returning leader frame",
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zap.Uint64("frame_number", latest.FrameNumber),
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)
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return latest, nil
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}
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