package innerring import ( "context" "errors" "fmt" "io" "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" "github.com/spf13/viper" "go.uber.org/atomic" "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 // event producers morphListener event.Listener mainnetListener event.Listener blockTimers []*timer.BlockTimer epochTimer *timer.BlockTimer // global state morphClient *client.Client mainnetClient *client.Client epochCounter atomic.Uint64 epochDuration atomic.Uint64 statusIndex *innerRingIndexer precision precision.Fixed8Converter healthStatus atomic.Value balanceClient *balanceClient.Client netmapClient *nmClient.Client persistate *state.PersistentStorage // metrics metrics *metrics.InnerRingServiceMetrics // notary configuration feeConfig *config.FeeConfig mainNotaryConfig *notaryConfig sideNotaryConfig *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 } chainParams struct { log *logger.Logger cfg *viper.Viper key *keys.PrivateKey name string sgn *transaction.Signer from uint32 // block height } ) 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") ) // 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 { if !s.sideNotaryConfig.disabled { return s.initNotary(ctx, s.depositSideNotary, s.awaitSideNotaryDeposit, "waiting to accept side notary deposit", ) } return nil } 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) } } // Stop closes all subscription channels. func (s *Server) Stop() { s.setHealthStatus(control.HealthStatus_SHUTTING_DOWN) 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) } // 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} server.setHealthStatus(control.HealthStatus_HEALTH_STATUS_UNDEFINED) // parse notary support server.feeConfig = config.NewFeeConfig(cfg) err = server.initKey(cfg) if err != nil { return nil, err } 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) if err != nil { return nil, err } err = server.initMainnet(ctx, cfg, morphChain, errChan) if err != nil { return nil, err } server.initNotaryConfig() 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 } server.metrics = metrics.NewInnerRingMetrics() 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 } listener, err := event.NewListener(event.ListenerParams{ Logger: &logger.Logger{Logger: p.log.With(zap.String("chain", p.name))}, Subscriber: sub, }) 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) } return client.New( ctx, p.key, 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")), ) } 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 { // 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), ) 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 }