package governance import ( "encoding/binary" "sort" "go.uber.org/zap" ) const ( alphabetUpdateIDPrefix = "AlphabetUpdate" ) func (gp *Processor) processAlphabetSync() { if !gp.alphabetState.IsAlphabet() { gp.log.Info("non alphabet mode, ignore alphabet sync") return } mainnetAlphabet, err := gp.mainnetClient.NeoFSAlphabetList() if err != nil { gp.log.Error("can't fetch alphabet list from main net", zap.String("error", err.Error())) return } sidechainAlphabet, err := gp.morphClient.Committee() if err != nil { gp.log.Error("can't fetch alphabet list from side chain", zap.String("error", err.Error())) return } newAlphabet, err := newAlphabetList(sidechainAlphabet, mainnetAlphabet) if err != nil { gp.log.Error("can't merge alphabet lists from main net and side chain", zap.String("error", err.Error())) return } if newAlphabet == nil { gp.log.Info("no governance update, alphabet list has not been changed") return } gp.log.Info("alphabet list has been changed, starting update") sort.Sort(newAlphabet) // 1. Vote to side chain committee via alphabet contracts. err = gp.voter.VoteForSidechainValidator(newAlphabet) if err != nil { gp.log.Error("can't vote for side chain committee", zap.String("error", err.Error())) } // 2. Update NeoFSAlphabet role in side chain. innerRing, err := gp.morphClient.NeoFSAlphabetList() if err != nil { gp.log.Error("can't fetch inner ring list from side chain", zap.String("error", err.Error())) } else { newInnerRing, err := updateInnerRing(innerRing, sidechainAlphabet, newAlphabet) if err != nil { gp.log.Error("can't create new inner ring list with new alphabet keys", zap.String("error", err.Error())) } else { sort.Sort(newInnerRing) if gp.notaryDisabled { err = gp.netmapClient.SetInnerRing(newInnerRing) } else { err = gp.morphClient.UpdateNeoFSAlphabetList(newInnerRing) } if err != nil { gp.log.Error("can't update inner ring list with new alphabet keys", zap.String("error", err.Error())) } } } if !gp.notaryDisabled { // 3. Update notary role in side chain. err = gp.morphClient.UpdateNotaryList(newAlphabet) if err != nil { gp.log.Error("can't update list of notary nodes in side chain", zap.String("error", err.Error())) } } // 4. Update NeoFS contract in main net. epoch := gp.epochState.EpochCounter() buf := make([]byte, 8) binary.LittleEndian.PutUint64(buf, epoch) id := append([]byte(alphabetUpdateIDPrefix), buf...) err = gp.neofsClient.AlphabetUpdate(id, newAlphabet) if err != nil { gp.log.Error("can't update list of alphabet nodes in neofs contract", zap.String("error", err.Error())) } gp.log.Info("finished alphabet list update") }