128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
package governance
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import (
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"encoding/binary"
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"encoding/hex"
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"sort"
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"strings"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"go.uber.org/zap"
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)
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const (
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alphabetUpdateIDPrefix = "AlphabetUpdate"
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)
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func (gp *Processor) processAlphabetSync() {
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if !gp.alphabetState.IsAlphabet() {
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gp.log.Info("non alphabet mode, ignore alphabet sync")
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return
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}
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mainnetAlphabet, err := gp.mainnetClient.NeoFSAlphabetList()
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if err != nil {
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gp.log.Error("can't fetch alphabet list from main net",
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zap.String("error", err.Error()))
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return
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}
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sidechainAlphabet, err := gp.morphClient.Committee()
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if err != nil {
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gp.log.Error("can't fetch alphabet list from side chain",
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zap.String("error", err.Error()))
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return
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}
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newAlphabet, err := newAlphabetList(sidechainAlphabet, mainnetAlphabet)
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if err != nil {
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gp.log.Error("can't merge alphabet lists from main net and side chain",
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zap.String("error", err.Error()))
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return
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}
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if newAlphabet == nil {
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gp.log.Info("no governance update, alphabet list has not been changed")
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return
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}
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gp.log.Info("alphabet list has been changed, starting update",
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zap.String("side_chain_alphabet", prettyKeys(sidechainAlphabet)),
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zap.String("new_alphabet", prettyKeys(newAlphabet)),
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)
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// 1. Vote to side chain committee via alphabet contracts.
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err = gp.voter.VoteForSidechainValidator(newAlphabet)
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if err != nil {
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gp.log.Error("can't vote for side chain committee",
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zap.String("error", err.Error()))
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}
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// 2. Update NeoFSAlphabet role in side chain.
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innerRing, err := gp.irFetcher.InnerRingKeys()
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if err != nil {
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gp.log.Error("can't fetch inner ring list from side chain",
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zap.String("error", err.Error()))
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} else {
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newInnerRing, err := updateInnerRing(innerRing, sidechainAlphabet, newAlphabet)
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if err != nil {
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gp.log.Error("can't create new inner ring list with new alphabet keys",
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zap.String("error", err.Error()))
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} else {
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sort.Sort(newInnerRing)
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gp.log.Info("update of the inner ring list",
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zap.String("before", prettyKeys(innerRing)),
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zap.String("after", prettyKeys(newInnerRing)),
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)
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if gp.notaryDisabled {
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err = gp.netmapClient.UpdateInnerRing(newInnerRing)
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} else {
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err = gp.morphClient.UpdateNeoFSAlphabetList(newInnerRing)
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}
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if err != nil {
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gp.log.Error("can't update inner ring list with new alphabet keys",
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zap.String("error", err.Error()))
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}
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}
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}
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if !gp.notaryDisabled {
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// 3. Update notary role in side chain.
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err = gp.morphClient.UpdateNotaryList(newAlphabet)
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if err != nil {
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gp.log.Error("can't update list of notary nodes in side chain",
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zap.String("error", err.Error()))
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}
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}
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// 4. Update NeoFS contract in main net.
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epoch := gp.epochState.EpochCounter()
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buf := make([]byte, 8)
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binary.LittleEndian.PutUint64(buf, epoch)
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id := append([]byte(alphabetUpdateIDPrefix), buf...)
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err = gp.neofsClient.AlphabetUpdate(id, newAlphabet)
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if err != nil {
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gp.log.Error("can't update list of alphabet nodes in neofs contract",
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zap.String("error", err.Error()))
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}
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gp.log.Info("finished alphabet list update")
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}
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func prettyKeys(keys keys.PublicKeys) string {
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const delimiter = ","
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sb := strings.Builder{}
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for _, key := range keys {
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sb.WriteString(hex.EncodeToString(key.Bytes()))
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sb.WriteString(delimiter)
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}
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return strings.TrimRight(sb.String(), delimiter)
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}
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