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

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package governance
import (
"encoding/binary"
"encoding/hex"
"sort"
"strings"
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
frostfscontract "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/frostfs"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/util"
"go.uber.org/zap"
)
const (
alphabetUpdateIDPrefix = "AlphabetUpdate"
)
func (gp *Processor) processAlphabetSync(txHash util.Uint256) {
if !gp.alphabetState.IsAlphabet() {
gp.log.Info(logs.GovernanceNonAlphabetModeIgnoreAlphabetSync)
return
}
mainnetAlphabet, err := gp.mainnetClient.NeoFSAlphabetList()
if err != nil {
gp.log.Error(logs.GovernanceCantFetchAlphabetListFromMainNet,
zap.String("error", err.Error()))
return
}
sidechainAlphabet, err := gp.morphClient.Committee()
if err != nil {
gp.log.Error(logs.GovernanceCantFetchAlphabetListFromSideChain,
zap.String("error", err.Error()))
return
}
newAlphabet, err := newAlphabetList(sidechainAlphabet, mainnetAlphabet)
if err != nil {
gp.log.Error(logs.GovernanceCantMergeAlphabetListsFromMainNetAndSideChain,
zap.String("error", err.Error()))
return
}
if newAlphabet == nil {
gp.log.Info(logs.GovernanceNoGovernanceUpdateAlphabetListHasNotBeenChanged)
return
}
gp.log.Info(logs.GovernanceAlphabetListHasBeenChangedStartingUpdate,
zap.String("side_chain_alphabet", prettyKeys(sidechainAlphabet)),
zap.String("new_alphabet", prettyKeys(newAlphabet)),
)
votePrm := VoteValidatorPrm{
Validators: newAlphabet,
Hash: &txHash,
}
// 1. Vote to sidechain committee via alphabet contracts.
err = gp.voter.VoteForSidechainValidator(votePrm)
if err != nil {
gp.log.Error(logs.GovernanceCantVoteForSideChainCommittee,
zap.String("error", err.Error()))
}
// 2. Update NeoFSAlphabet role in the sidechain.
gp.updateNeoFSAlphabetRoleInSidechain(sidechainAlphabet, newAlphabet, txHash)
// 3. Update notary role in the sidechain.
gp.updateNotaryRoleInSidechain(newAlphabet, txHash)
// 4. Update FrostFS contract in the mainnet.
gp.updateFrostFSContractInMainnet(newAlphabet)
gp.log.Info(logs.GovernanceFinishedAlphabetListUpdate)
}
func prettyKeys(keys keys.PublicKeys) string {
const delimiter = ","
sb := strings.Builder{}
for _, key := range keys {
sb.WriteString(hex.EncodeToString(key.Bytes()))
sb.WriteString(delimiter)
}
return strings.TrimRight(sb.String(), delimiter)
}
func (gp *Processor) updateNeoFSAlphabetRoleInSidechain(sidechainAlphabet, newAlphabet keys.PublicKeys, txHash util.Uint256) {
innerRing, err := gp.irFetcher.InnerRingKeys()
if err != nil {
gp.log.Error(logs.GovernanceCantFetchInnerRingListFromSideChain,
zap.String("error", err.Error()))
return
}
newInnerRing, err := updateInnerRing(innerRing, sidechainAlphabet, newAlphabet)
if err != nil {
gp.log.Error(logs.GovernanceCantCreateNewInnerRingListWithNewAlphabetKeys,
zap.String("error", err.Error()))
return
}
sort.Sort(newInnerRing)
gp.log.Info(logs.GovernanceUpdateOfTheInnerRingList,
zap.String("before", prettyKeys(innerRing)),
zap.String("after", prettyKeys(newInnerRing)),
)
updPrm := client.UpdateAlphabetListPrm{}
updPrm.SetList(newInnerRing)
updPrm.SetHash(txHash)
if err = gp.morphClient.UpdateNeoFSAlphabetList(updPrm); err != nil {
gp.log.Error(logs.GovernanceCantUpdateInnerRingListWithNewAlphabetKeys,
zap.String("error", err.Error()))
}
}
func (gp *Processor) updateNotaryRoleInSidechain(newAlphabet keys.PublicKeys, txHash util.Uint256) {
updPrm := client.UpdateNotaryListPrm{}
updPrm.SetList(newAlphabet)
updPrm.SetHash(txHash)
err := gp.morphClient.UpdateNotaryList(updPrm)
if err != nil {
gp.log.Error(logs.GovernanceCantUpdateListOfNotaryNodesInSideChain,
zap.String("error", err.Error()))
}
}
func (gp *Processor) updateFrostFSContractInMainnet(newAlphabet keys.PublicKeys) {
epoch := gp.epochState.EpochCounter()
buf := make([]byte, 8)
binary.LittleEndian.PutUint64(buf, epoch)
id := append([]byte(alphabetUpdateIDPrefix), buf...)
prm := frostfscontract.AlphabetUpdatePrm{}
prm.SetID(id)
prm.SetPubs(newAlphabet)
err := gp.frostfsClient.AlphabetUpdate(prm)
if err != nil {
gp.log.Error(logs.GovernanceCantUpdateListOfAlphabetNodesInFrostfsContract,
zap.String("error", err.Error()))
}
}