package netmap import ( "encoding/hex" "sort" "strings" "github.com/nspcc-dev/neofs-api-go/pkg/netmap" netmapEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/netmap" "go.uber.org/zap" ) const approvePeerMethod = "addPeer" // Process add peer notification by sanity check of new node // local epoch timer. func (np *Processor) processAddPeer(node []byte) { if !np.alphabetState.IsAlphabet() { np.log.Info("non alphabet mode, ignore new peer notification") return } // unmarshal node info nodeInfo := netmap.NewNodeInfo() if err := nodeInfo.Unmarshal(node); err != nil { // it will be nice to have tx id at event structure to log it np.log.Warn("can't parse network map candidate") return } // validate and update node info err := np.nodeValidator.VerifyAndUpdate(nodeInfo) if err != nil { np.log.Warn("could not verify and update information about network map candidate", zap.String("error", err.Error()), ) return } // sort attributes to make it consistent a := nodeInfo.Attributes() sort.Slice(a, func(i, j int) bool { switch strings.Compare(a[i].Key(), a[j].Key()) { case -1: return true case 1: return false default: return a[i].Value() < a[j].Value() } }) nodeInfo.SetAttributes(a...) // marshal node info back to binary node, err = nodeInfo.Marshal() if err != nil { np.log.Warn("can't marshal approved network map candidate", zap.String("error", err.Error())) return } keyString := hex.EncodeToString(nodeInfo.PublicKey()) exists := np.netmapSnapshot.touch(keyString, np.epochState.EpochCounter()) if !exists { np.log.Info("approving network map candidate", zap.String("key", keyString)) err := np.morphClient.NotaryInvoke(np.netmapContract, np.feeProvider.SideChainFee(), approvePeerMethod, node) if err != nil { np.log.Error("can't invoke netmap.AddPeer", zap.Error(err)) } } } // Process update peer notification by sending approval tx to the smart contract. func (np *Processor) processUpdatePeer(ev netmapEvent.UpdatePeer) { if !np.alphabetState.IsAlphabet() { np.log.Info("non alphabet mode, ignore update peer notification") return } // better use unified enum from neofs-api-go/v2/netmap package if ev.Status() != netmap.NodeStateOffline { np.log.Warn("node proposes unknown state", zap.String("key", hex.EncodeToString(ev.PublicKey().Bytes())), zap.Stringer("status", ev.Status()), ) return } // flag node to remove from local view, so it can be re-bootstrapped // again before new epoch will tick np.netmapSnapshot.flag(hex.EncodeToString(ev.PublicKey().Bytes())) err := np.morphClient.NotaryInvoke(np.netmapContract, np.feeProvider.SideChainFee(), updatePeerStateMethod, int64(ev.Status().ToV2()), ev.PublicKey().Bytes()) if err != nil { np.log.Error("can't invoke netmap.UpdatePeer", zap.Error(err)) } }