frostfs-node/pkg/innerring/processors/governance/process_update.go

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package governance
import (
"encoding/binary"
"sort"
"go.uber.org/zap"
)
const (
alphabetUpdateIDPrefix = "AlphabetUpdate"
alphabetUpdateMethod = "alphabetUpdate"
setInnerRingMethod = "updateInnerRing"
)
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.morphClient.NotaryInvoke(gp.netmapContract, gp.feeProvider.SideChainFee(), setInnerRingMethod,
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.mainnetClient.NotaryInvoke(gp.neofsContract, gp.feeProvider.MainChainFee(), alphabetUpdateMethod,
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")
}