[#452] innerring: Add reputation processor

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/innerring/processors/reputation/handlers.go

@@ -0,0 +1,31 @@
+package reputation
+
+import (
+	"encoding/hex"
+
+	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
+	reputationEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/reputation"
+	"go.uber.org/zap"
+)
+
+func (rp *Processor) handlePutReputation(ev event.Event) {
+	put := ev.(reputationEvent.Put)
+	rp.log.Info("notification",
+		zap.String("type", "reputation put"),
+		zap.String("peer_id", hex.EncodeToString(put.PeerID().Bytes())))
+
+	// send event to the worker pool
+
+	err := rp.pool.Submit(func() {
+		rp.processPut(
+			put.Epoch(),
+			put.PeerID(),
+			put.Value(),
+		)
+	})
+	if err != nil {
+		// there system can be moved into controlled degradation stage
+		rp.log.Warn("reputation worker pool drained",
+			zap.Int("capacity", rp.pool.Cap()))
+	}
+}

pkg/innerring/processors/reputation/process_put.go

@@ -0,0 +1,30 @@
+package reputation
+
+import (
+	"encoding/hex"
+
+	"github.com/nspcc-dev/neofs-node/pkg/morph/client/reputation/wrapper"
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
+	"go.uber.org/zap"
+)
+
+func (rp *Processor) processPut(epoch uint64, id reputation.PeerID, value []byte) {
+	if !rp.alphabetState.IsAlphabet() {
+		rp.log.Info("non alphabet mode, ignore reputation put notification")
+		return
+	}
+
+	// todo: do sanity checks of value and epoch
+
+	args := wrapper.PutArgs{}
+	args.SetEpoch(epoch)
+	args.SetPeerID(id)
+	args.SetValue(value)
+
+	err := rp.reputationWrp.PutViaNotary(args)
+	if err != nil {
+		rp.log.Warn("can't send approval tx for reputation value",
+			zap.String("peer_id", hex.EncodeToString(id.Bytes())),
+			zap.String("error", err.Error()))
+	}
+}

pkg/innerring/processors/reputation/processor.go

@@ -0,0 +1,113 @@
+package reputation
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	reputationWrapper "github.com/nspcc-dev/neofs-node/pkg/morph/client/reputation/wrapper"
+	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
+	reputationEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/reputation"
+	"github.com/panjf2000/ants/v2"
+	"github.com/pkg/errors"
+	"go.uber.org/zap"
+)
+
+type (
+	// EpochState is a callback interface for inner ring global state.
+	EpochState interface {
+		EpochCounter() uint64
+	}
+
+	// AlphabetState is a callback interface for inner ring global state.
+	AlphabetState interface {
+		IsAlphabet() bool
+	}
+
+	// Processor of events produced by reputation contract.
+	Processor struct {
+		log  *zap.Logger
+		pool *ants.Pool
+
+		reputationContract util.Uint160
+
+		epochState    EpochState
+		alphabetState AlphabetState
+
+		reputationWrp *reputationWrapper.ClientWrapper
+	}
+
+	// Params of the processor constructor.
+	Params struct {
+		Log                *zap.Logger
+		PoolSize           int
+		ReputationContract util.Uint160
+		EpochState         EpochState
+		AlphabetState      AlphabetState
+		ReputationWrapper  *reputationWrapper.ClientWrapper
+	}
+)
+
+const (
+	putReputationNotification = "reputationPut"
+)
+
+// New creates reputation contract processor instance.
+func New(p *Params) (*Processor, error) {
+	switch {
+	case p.Log == nil:
+		return nil, errors.New("ir/reputation: logger is not set")
+	case p.EpochState == nil:
+		return nil, errors.New("ir/reputation: global state is not set")
+	case p.AlphabetState == nil:
+		return nil, errors.New("ir/reputation: global state is not set")
+	case p.ReputationWrapper == nil:
+		return nil, errors.New("ir/reputation: reputation contract wrapper is not set")
+	}
+
+	p.Log.Debug("reputation worker pool", zap.Int("size", p.PoolSize))
+
+	pool, err := ants.NewPool(p.PoolSize, ants.WithNonblocking(true))
+	if err != nil {
+		return nil, errors.Wrap(err, "ir/reputation: can't create worker pool")
+	}
+
+	return &Processor{
+		log:                p.Log,
+		pool:               pool,
+		reputationContract: p.ReputationContract,
+		epochState:         p.EpochState,
+		alphabetState:      p.AlphabetState,
+		reputationWrp:      p.ReputationWrapper,
+	}, nil
+}
+
+// ListenerParsers for the 'event.Listener' event producer.
+func (rp *Processor) ListenerParsers() []event.ParserInfo {
+	var parsers []event.ParserInfo
+
+	// put reputation event
+	put := event.ParserInfo{}
+	put.SetType(putReputationNotification)
+	put.SetScriptHash(rp.reputationContract)
+	put.SetParser(reputationEvent.ParsePut)
+	parsers = append(parsers, put)
+
+	return parsers
+}
+
+// ListenerHandlers for the 'event.Listener' event producer.
+func (rp *Processor) ListenerHandlers() []event.HandlerInfo {
+	var handlers []event.HandlerInfo
+
+	// put reputation handler
+	put := event.HandlerInfo{}
+	put.SetType(putReputationNotification)
+	put.SetScriptHash(rp.reputationContract)
+	put.SetHandler(rp.handlePutReputation)
+	handlers = append(handlers, put)
+
+	return handlers
+}
+
+// TimersHandlers for the 'Timers' event producer.
+func (rp *Processor) TimersHandlers() []event.HandlerInfo {
+	return nil
+}