mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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4b5880e8d3
This is a follow on PR in support of https://github.com/ledgerwatch/erigon/issues/5824. See https://github.com/ledgerwatch/erigon/pull/5841 for the `beacon_aggregate_and_proof` topic. This PR adds support for the `voluntary_exit, proposer_slashing, and attester_slashing` topics as defined in the phase 0 spec https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/p2p-interface.md#global-topics. The CL types were already defined so this just adds the listening to the pub sub service.
113 lines
3.3 KiB
Go
113 lines
3.3 KiB
Go
package service
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import (
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"context"
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ssz "github.com/ferranbt/fastssz"
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"github.com/ledgerwatch/erigon/cmd/lightclient/cltypes"
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"github.com/ledgerwatch/erigon/cmd/lightclient/rpc/lightrpc"
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"github.com/ledgerwatch/erigon/cmd/lightclient/sentinel"
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"github.com/ledgerwatch/erigon/cmd/lightclient/sentinel/communication"
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"github.com/ledgerwatch/log/v3"
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)
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type SentinelServer struct {
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lightrpc.UnimplementedSentinelServer
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ctx context.Context
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sentinel *sentinel.Sentinel
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gossipNotifier *gossipNotifier
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}
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func NewSentinelServer(ctx context.Context, sentinel *sentinel.Sentinel) *SentinelServer {
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return &SentinelServer{
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sentinel: sentinel,
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ctx: ctx,
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gossipNotifier: newGossipNotifier(),
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}
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}
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func (s *SentinelServer) SubscribeGossip(_ *lightrpc.EmptyRequest, stream lightrpc.Sentinel_SubscribeGossipServer) error {
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// first of all subscribe
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ch, subId, err := s.gossipNotifier.addSubscriber()
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if err != nil {
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return err
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}
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defer s.gossipNotifier.removeSubscriber(subId)
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for {
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select {
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// Exit on stream context done
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case <-stream.Context().Done():
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return nil
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case packet := <-ch:
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if err := stream.Send(&lightrpc.GossipData{
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Data: packet.data,
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Type: packet.t,
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}); err != nil {
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log.Warn("Could not relay gossip packet", "reason", err)
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}
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}
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}
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}
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func (s *SentinelServer) SendRequest(_ context.Context, req *lightrpc.RequestData) (*lightrpc.ResponseData, error) {
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// Send the request and get the data if we get an answer.
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respData, foundErrReq, err := s.sentinel.SendRequestRaw(req.Data, req.Topic)
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return &lightrpc.ResponseData{
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Data: respData,
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Error: foundErrReq,
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}, err
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}
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func (s *SentinelServer) GetPeers(_ context.Context, _ *lightrpc.EmptyRequest) (*lightrpc.PeerCount, error) {
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// Send the request and get the data if we get an answer.
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return &lightrpc.PeerCount{
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Amount: uint64(s.sentinel.GetPeersCount()),
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}, nil
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}
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func (s *SentinelServer) ListenToGossip() {
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for {
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select {
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case pkt := <-s.sentinel.RecvGossip():
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s.handleGossipPacket(pkt)
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case <-s.ctx.Done():
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return
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}
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}
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}
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func (s *SentinelServer) handleGossipPacket(pkt *communication.GossipContext) error {
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log.Trace("[Gossip] Received Packet", "topic", pkt.Topic)
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err := pkt.Codec.WritePacket(context.TODO(), pkt.Packet)
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if err != nil {
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log.Warn("[Gossip] Error Forwarding Packet", "err", err)
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}
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// Compute data
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u := pkt.Packet.(ssz.Marshaler)
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var data []byte
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// Make data
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if data, err = u.MarshalSSZ(); err != nil {
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return err
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}
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switch pkt.Packet.(type) {
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case *cltypes.SignedBeaconBlockBellatrix:
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s.gossipNotifier.notify(lightrpc.GossipType_BeaconBlockGossipType, data)
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case *cltypes.SignedAggregateAndProof:
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s.gossipNotifier.notify(lightrpc.GossipType_AggregateAndProofGossipType, data)
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case *cltypes.SignedVoluntaryExit:
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s.gossipNotifier.notify(lightrpc.GossipType_VoluntaryExitGossipType, data)
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case *cltypes.ProposerSlashing:
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s.gossipNotifier.notify(lightrpc.GossipType_ProposerSlashingGossipType, data)
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case *cltypes.AttesterSlashing:
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s.gossipNotifier.notify(lightrpc.GossipType_AttesterSlashingGossipType, data)
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case *cltypes.LightClientFinalityUpdate:
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s.gossipNotifier.notify(lightrpc.GossipType_LightClientFinalityUpdateGossipType, data)
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case *cltypes.LightClientOptimisticUpdate:
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s.gossipNotifier.notify(lightrpc.GossipType_LightClientOptimisticUpdateGossipType, data)
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default:
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}
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return nil
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}
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