frostfs-node/pkg/innerring/innerring.go

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package innerring
import (
"context"
"errors"
"fmt"
"io"
"sync/atomic"
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"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/innerring/config"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/innerring/processors/alphabet"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/innerring/processors/governance"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/innerring/processors/netmap"
timerEvent "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/innerring/timers"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
balanceClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/balance"
nmClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/netmap"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/subscriber"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/timer"
control "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control/ir"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/precision"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/state"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/spf13/viper"
"go.uber.org/zap"
)
type (
// Server is the inner ring application structure, that contains all event
// processors, shared variables and event handlers.
Server struct {
log *logger.Logger
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// event producers
morphListener event.Listener
mainnetListener event.Listener
blockTimers []*timer.BlockTimer
epochTimer *timer.BlockTimer
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// global state
morphClient *client.Client
mainnetClient *client.Client
epochCounter atomic.Uint64
epochDuration atomic.Uint64
statusIndex *innerRingIndexer
precision precision.Fixed8Converter
healthStatus atomic.Int32
balanceClient *balanceClient.Client
netmapClient *nmClient.Client
persistate *state.PersistentStorage
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// metrics
irMetrics *metrics.InnerRingServiceMetrics
// notary configuration
feeConfig *config.FeeConfig
mainNotaryConfig *notaryConfig
// internal variables
key *keys.PrivateKey
pubKey []byte
contracts *contracts
predefinedValidators keys.PublicKeys
initialEpochTickDelta uint32
withoutMainNet bool
// runtime processors
netmapProcessor *netmap.Processor
alphabetProcessor *alphabet.Processor
workers []func(context.Context)
// Set of local resources that must be
// initialized at the very beginning of
// Server's work, (e.g. opening files).
//
// If any starter returns an error, Server's
// starting fails immediately.
starters []func() error
// Set of local resources that must be
// released at Server's work completion
// (e.g closing files).
//
// Closer's wrong outcome shouldn't be critical.
//
// Errors are logged.
closers []func() error
// Set of component runners which
// should report start errors
// to the application.
runners []func(chan<- error) error
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}
chainParams struct {
log *logger.Logger
cfg *viper.Viper
key *keys.PrivateKey
name string
sgn *transaction.Signer
from uint32 // block height
morphCacheMetric metrics.MorphCacheMetrics
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}
)
const (
morphPrefix = "morph"
mainnetPrefix = "mainnet"
// extra blocks to overlap two deposits, we do that to make sure that
// there won't be any blocks without deposited assets in notary contract;
// make sure it is bigger than any extra rounding value in notary client.
notaryExtraBlocks = 300
// amount of tries before notary deposit timeout.
notaryDepositTimeout = 100
)
var (
errDepositTimeout = errors.New("notary deposit didn't appear in the network")
errDepositFail = errors.New("notary tx has faulted")
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)
// Start runs all event providers.
func (s *Server) Start(ctx context.Context, intError chan<- error) (err error) {
s.setHealthStatus(control.HealthStatus_STARTING)
defer func() {
if err == nil {
s.setHealthStatus(control.HealthStatus_READY)
}
}()
err = s.launchStarters()
if err != nil {
return err
}
err = s.initConfigFromBlockchain()
if err != nil {
return err
}
if s.IsAlphabet() {
err = s.initMainNotary(ctx)
if err != nil {
return err
}
err = s.initSideNotary(ctx)
if err != nil {
return err
}
}
prm := governance.VoteValidatorPrm{}
prm.Validators = s.predefinedValidators
// vote for sidechain validator if it is prepared in config
err = s.voteForSidechainValidator(prm)
if err != nil {
// we don't stop inner ring execution on this error
s.log.Warn(logs.InnerringCantVoteForPreparedValidators,
zap.String("error", err.Error()))
}
s.tickInitialExpoch()
morphErr := make(chan error)
mainnnetErr := make(chan error)
// anonymous function to multiplex error channels
go func() {
select {
case <-ctx.Done():
return
case err := <-morphErr:
intError <- fmt.Errorf("sidechain: %w", err)
case err := <-mainnnetErr:
intError <- fmt.Errorf("mainnet: %w", err)
}
}()
s.registerMorphNewBlockEventHandler()
s.registerMainnetNewBlockEventHandler()
if err := s.startRunners(intError); err != nil {
return err
}
go s.morphListener.ListenWithError(ctx, morphErr) // listen for neo:morph events
go s.mainnetListener.ListenWithError(ctx, mainnnetErr) // listen for neo:mainnet events
if err := s.startBlockTimers(); err != nil {
return fmt.Errorf("could not start block timers: %w", err)
}
s.startWorkers(ctx)
return nil
}
func (s *Server) registerMorphNewBlockEventHandler() {
s.morphListener.RegisterBlockHandler(func(b *block.Block) {
s.log.Debug(logs.InnerringNewBlock,
zap.Uint32("index", b.Index),
)
err := s.persistate.SetUInt32(persistateSideChainLastBlockKey, b.Index)
if err != nil {
s.log.Warn(logs.InnerringCantUpdatePersistentState,
zap.String("chain", "side"),
zap.Uint32("block_index", b.Index))
}
s.tickTimers(b.Index)
})
}
func (s *Server) registerMainnetNewBlockEventHandler() {
if !s.withoutMainNet {
s.mainnetListener.RegisterBlockHandler(func(b *block.Block) {
err := s.persistate.SetUInt32(persistateMainChainLastBlockKey, b.Index)
if err != nil {
s.log.Warn(logs.InnerringCantUpdatePersistentState,
zap.String("chain", "main"),
zap.Uint32("block_index", b.Index))
}
})
}
}
func (s *Server) startRunners(errCh chan<- error) error {
for _, runner := range s.runners {
if err := runner(errCh); err != nil {
return err
}
}
return nil
}
func (s *Server) launchStarters() error {
for _, starter := range s.starters {
if err := starter(); err != nil {
return err
}
}
return nil
}
func (s *Server) initMainNotary(ctx context.Context) error {
if !s.mainNotaryConfig.disabled {
return s.initNotary(ctx,
s.depositMainNotary,
s.awaitMainNotaryDeposit,
"waiting to accept main notary deposit",
)
}
return nil
}
func (s *Server) initSideNotary(ctx context.Context) error {
return s.initNotary(ctx,
s.depositSideNotary,
s.awaitSideNotaryDeposit,
"waiting to accept side notary deposit",
)
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}
func (s *Server) tickInitialExpoch() {
initialEpochTicker := timer.NewOneTickTimer(
timer.StaticBlockMeter(s.initialEpochTickDelta),
func() {
s.netmapProcessor.HandleNewEpochTick(timerEvent.NewEpochTick{})
})
s.addBlockTimer(initialEpochTicker)
}
func (s *Server) startWorkers(ctx context.Context) {
for _, w := range s.workers {
go w(ctx)
}
}
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// Stop closes all subscription channels.
func (s *Server) Stop() {
s.setHealthStatus(control.HealthStatus_SHUTTING_DOWN)
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go s.morphListener.Stop()
go s.mainnetListener.Stop()
for _, c := range s.closers {
if err := c(); err != nil {
s.log.Warn(logs.InnerringCloserError,
zap.String("error", err.Error()),
)
}
}
}
func (s *Server) registerNoErrCloser(c func()) {
s.registerCloser(func() error {
c()
return nil
})
}
func (s *Server) registerIOCloser(c io.Closer) {
s.registerCloser(c.Close)
}
func (s *Server) registerCloser(f func() error) {
s.closers = append(s.closers, f)
}
func (s *Server) registerStarter(f func() error) {
s.starters = append(s.starters, f)
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}
// New creates instance of inner ring sever structure.
func New(ctx context.Context, log *logger.Logger, cfg *viper.Viper, errChan chan<- error) (*Server, error) {
var err error
server := &Server{
log: log,
irMetrics: metrics.NewInnerRingMetrics(),
}
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server.setHealthStatus(control.HealthStatus_HEALTH_STATUS_UNDEFINED)
// parse notary support
server.feeConfig = config.NewFeeConfig(cfg)
err = server.initKey(cfg)
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if err != nil {
return nil, err
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}
server.persistate, err = initPersistentStateStorage(cfg)
if err != nil {
return nil, err
}
server.registerCloser(server.persistate.Close)
var morphChain *chainParams
morphChain, err = server.initMorph(ctx, cfg, errChan)
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if err != nil {
return nil, err
}
err = server.initMainnet(ctx, cfg, morphChain, errChan)
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if err != nil {
return nil, err
}
server.initNotaryConfig()
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err = server.initContracts(cfg)
if err != nil {
return nil, err
}
err = server.enableNotarySupport()
if err != nil {
return nil, err
}
// parse default validators
server.predefinedValidators, err = parsePredefinedValidators(cfg)
if err != nil {
return nil, fmt.Errorf("ir: can't parse predefined validators list: %w", err)
}
server.pubKey = server.key.PublicKey().Bytes()
var morphClients *serverMorphClients
morphClients, err = server.initClientsFromMorph()
if err != nil {
return nil, err
}
err = server.initProcessors(cfg, morphClients)
if err != nil {
return nil, err
}
server.initTimers(cfg, morphClients)
err = server.initGRPCServer(cfg)
if err != nil {
return nil, err
}
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return server, nil
}
func createListener(ctx context.Context, cli *client.Client, p *chainParams) (event.Listener, error) {
var (
sub subscriber.Subscriber
err error
)
sub, err = subscriber.New(ctx, &subscriber.Params{
Log: p.log,
StartFromBlock: p.from,
Client: cli,
})
if err != nil {
return nil, err
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}
listener, err := event.NewListener(event.ListenerParams{
Logger: &logger.Logger{Logger: p.log.With(zap.String("chain", p.name))},
Subscriber: sub,
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})
if err != nil {
return nil, err
}
return listener, err
}
func createClient(ctx context.Context, p *chainParams, errChan chan<- error) (*client.Client, error) {
// config name left unchanged for compatibility, may be its better to rename it to "endpoints" or "clients"
var endpoints []client.Endpoint
// defaultPriority is a default endpoint priority
const defaultPriority = 1
section := p.name + ".endpoint.client"
for i := 0; ; i++ {
addr := p.cfg.GetString(fmt.Sprintf("%s.%d.%s", section, i, "address"))
if addr == "" {
break
}
priority := p.cfg.GetInt(section + ".priority")
if priority <= 0 {
priority = defaultPriority
}
endpoints = append(endpoints, client.Endpoint{
Address: addr,
Priority: priority,
})
}
if len(endpoints) == 0 {
return nil, fmt.Errorf("%s chain client endpoints not provided", p.name)
}
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return client.New(
ctx,
p.key,
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client.WithLogger(p.log),
client.WithDialTimeout(p.cfg.GetDuration(p.name+".dial_timeout")),
client.WithSigner(p.sgn),
client.WithEndpoints(endpoints...),
client.WithConnLostCallback(func() {
errChan <- fmt.Errorf("%s chain connection has been lost", p.name)
}),
client.WithSwitchInterval(p.cfg.GetDuration(p.name+".switch_interval")),
client.WithMorphCacheMetrics(p.morphCacheMetric),
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)
}
func parsePredefinedValidators(cfg *viper.Viper) (keys.PublicKeys, error) {
publicKeyStrings := cfg.GetStringSlice("morph.validators")
return ParsePublicKeysFromStrings(publicKeyStrings)
}
// ParsePublicKeysFromStrings returns slice of neo public keys from slice
// of hex encoded strings.
func ParsePublicKeysFromStrings(pubKeys []string) (keys.PublicKeys, error) {
publicKeys := make(keys.PublicKeys, 0, len(pubKeys))
for i := range pubKeys {
key, err := keys.NewPublicKeyFromString(pubKeys[i])
if err != nil {
return nil, fmt.Errorf("can't decode public key: %w", err)
}
publicKeys = append(publicKeys, key)
}
return publicKeys, nil
}
// parseWalletAddressesFromStrings returns a slice of util.Uint160 from a slice
// of strings.
func parseWalletAddressesFromStrings(wallets []string) ([]util.Uint160, error) {
if len(wallets) == 0 {
return nil, nil
}
var err error
extraWallets := make([]util.Uint160, len(wallets))
for i := range wallets {
extraWallets[i], err = address.StringToUint160(wallets[i])
if err != nil {
return nil, err
}
}
return extraWallets, nil
}
func (s *Server) initConfigFromBlockchain() error {
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// get current epoch
epoch, err := s.netmapClient.Epoch()
if err != nil {
return fmt.Errorf("can't read epoch number: %w", err)
}
// get current epoch duration
epochDuration, err := s.netmapClient.EpochDuration()
if err != nil {
return fmt.Errorf("can't read epoch duration: %w", err)
}
// get balance precision
balancePrecision, err := s.balanceClient.Decimals()
if err != nil {
return fmt.Errorf("can't read balance contract precision: %w", err)
}
s.epochCounter.Store(epoch)
s.epochDuration.Store(epochDuration)
s.precision.SetBalancePrecision(balancePrecision)
// get next epoch delta tick
s.initialEpochTickDelta, err = s.nextEpochBlockDelta()
if err != nil {
return err
}
s.log.Debug(logs.InnerringReadConfigFromBlockchain,
zap.Bool("active", s.IsActive()),
zap.Bool("alphabet", s.IsAlphabet()),
zap.Uint64("epoch", epoch),
zap.Uint32("precision", balancePrecision),
zap.Uint32("init_epoch_tick_delta", s.initialEpochTickDelta),
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)
return nil
}
func (s *Server) nextEpochBlockDelta() (uint32, error) {
epochBlock, err := s.netmapClient.LastEpochBlock()
if err != nil {
return 0, fmt.Errorf("can't read last epoch block: %w", err)
}
blockHeight, err := s.morphClient.BlockCount()
if err != nil {
return 0, fmt.Errorf("can't get side chain height: %w", err)
}
delta := uint32(s.epochDuration.Load()) + epochBlock
if delta < blockHeight {
return 0, nil
}
return delta - blockHeight, nil
}
// onlyAlphabet wrapper around event handler that executes it
// only if inner ring node is alphabet node.
func (s *Server) onlyAlphabetEventHandler(f event.Handler) event.Handler {
return func(ev event.Event) {
if s.IsAlphabet() {
f(ev)
}
}
}
func (s *Server) newEpochTickHandlers() []newEpochHandler {
newEpochHandlers := []newEpochHandler{
func() {
s.netmapProcessor.HandleNewEpochTick(timerEvent.NewEpochTick{})
},
}
return newEpochHandlers
}
func (s *Server) SetExtraWallets(cfg *viper.Viper) error {
parsedWallets, err := parseWalletAddressesFromStrings(cfg.GetStringSlice("emit.extra_wallets"))
if err != nil {
return err
}
s.alphabetProcessor.SetParsedWallets(parsedWallets)
return nil
}