[#1175] object/fmt: Handle LOCK objects

Make `FormatValidator.ValidateContent` to verify payload of `LOCK`
objects. Pass locked objects to `Locker` interface. Require from
`Locker.Lock` to return `apistatus.IrregularObjectLock` error on a
corresponding condition.

Also add error return to `DeleteHandler.DeleteObjects` method. Require
from method to return `apistatus.ObjectLocked` error on a corresponding
condition. Adopt implementations.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-node/object.go

@@ -101,19 +101,12 @@ type localObjectInhumer struct {
 	log *logger.Logger
 }
 
-func (r *localObjectInhumer) DeleteObjects(ts *addressSDK.Address, addr ...*addressSDK.Address) {
+func (r *localObjectInhumer) DeleteObjects(ts *addressSDK.Address, addr ...*addressSDK.Address) error {
 	prm := new(engine.InhumePrm)
+	prm.WithTarget(ts, addr...)
 
-	for _, a := range addr {
+	_, err := r.storage.Inhume(prm)
-		prm.WithTarget(ts, a)
+	return err
-
-		if _, err := r.storage.Inhume(prm); err != nil {
-			r.log.Error("could not delete object",
-				zap.Stringer("address", a),
-				zap.String("error", err.Error()),
-			)
-		}
-	}
 }
 
 type delNetInfo struct {
@@ -267,6 +260,7 @@ func initObjectService(c *cfg) {
 		putsvc.WithNetmapKeys(c),
 		putsvc.WithFormatValidatorOpts(
 			objectCore.WithDeleteHandler(objInhumer),
+			objectCore.WithLocker(ls),
 		),
 		putsvc.WithNetworkState(c.cfgNetmap.state),
 		putsvc.WithWorkerPools(c.cfgObject.pool.putRemote),

pkg/core/object/fmt.go

@@ -11,8 +11,10 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
+	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
 	addressSDK "github.com/nspcc-dev/neofs-sdk-go/object/address"
+	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 	"github.com/nspcc-dev/neofs-sdk-go/owner"
 	"github.com/nspcc-dev/neofs-sdk-go/storagegroup"
 )
@@ -29,11 +31,26 @@ type cfg struct {
 	deleteHandler DeleteHandler
 
 	netState netmap.State
+
+	locker Locker
 }
 
 // DeleteHandler is an interface of delete queue processor.
 type DeleteHandler interface {
-	DeleteObjects(*addressSDK.Address, ...*addressSDK.Address)
+	// DeleteObjects objects places objects to removal queue.
+	//
+	// Returns apistatus.IrregularObjectLock if at least one object
+	// is locked.
+	DeleteObjects(*addressSDK.Address, ...*addressSDK.Address) error
+}
+
+// Locker is an object lock storage interface.
+type Locker interface {
+	// Lock list of objects as locked by locker in the specified container.
+	//
+	// Returns apistatus.IrregularObjectLock if at least object in locked
+	// list is irregular (not type of REGULAR).
+	Lock(idCnr cid.ID, locker oid.ID, locked []oid.ID) error
 }
 
 var errNilObject = errors.New("object is nil")
@@ -135,6 +152,8 @@ func (v *FormatValidator) checkOwnerKey(id *owner.ID, key []byte) error {
 // ValidateContent validates payload content according to object type.
 func (v *FormatValidator) ValidateContent(o *object.Object) error {
 	switch o.Type() {
+	case object.TypeRegular:
+		// ignore regular objects, they do not need payload formatting
 	case object.TypeTombstone:
 		if len(o.Payload()) == 0 {
 			return fmt.Errorf("(%T) empty payload in tombstone", v)
@@ -174,7 +193,10 @@ func (v *FormatValidator) ValidateContent(o *object.Object) error {
 		}
 
 		if v.deleteHandler != nil {
-			v.deleteHandler.DeleteObjects(AddressOf(o), addrList...)
+			err = v.deleteHandler.DeleteObjects(AddressOf(o), addrList...)
+			if err != nil {
+				return fmt.Errorf("delete objects from %s object content: %w", o.Type(), err)
+			}
 		}
 	case object.TypeStorageGroup:
 		if len(o.Payload()) == 0 {
@@ -192,6 +214,28 @@ func (v *FormatValidator) ValidateContent(o *object.Object) error {
 				return fmt.Errorf("(%T) empty member in SG", v)
 			}
 		}
+	case object.TypeLock:
+		if len(o.Payload()) == 0 {
+			return errors.New("empty payload in lock")
+		}
+
+		var lock object.Lock
+
+		err := lock.Unmarshal(o.Payload())
+		if err != nil {
+			return fmt.Errorf("decode lock payload: %w", err)
+		}
+
+		if v.locker != nil {
+			// mark all objects from lock list as locked in storage engine
+			locklist := make([]oid.ID, lock.NumberOfMembers())
+			lock.ReadMembers(locklist)
+
+			err = v.locker.Lock(*o.ContainerID(), *o.ID(), locklist)
+			if err != nil {
+				return fmt.Errorf("lock objects from %s object content: %w", o.Type(), err)
+			}
+		}
 	default:
 		// ignore all other object types, they do not need payload formatting
 	}
@@ -281,3 +325,10 @@ func WithDeleteHandler(v DeleteHandler) FormatValidatorOption {
 		c.deleteHandler = v
 	}
 }
+
+// WithLocker returns option to set object lock storage.
+func WithLocker(v Locker) FormatValidatorOption {
+	return func(c *cfg) {
+		c.locker = v
+	}
+}

pkg/local_object_storage/engine/lock.go

@@ -32,11 +32,11 @@ func (e *StorageEngine) lock(idCnr cid.ID, locker oid.ID, locked []oid.ID) error
 	for i := range locked {
 		switch e.lockSingle(idCnr, locker, locked[i], true) {
 		case 1:
-			return apistatus.IrregularObjectLock{}
+			return apistatus.LockNonRegularObject{}
 		case 0:
 			switch e.lockSingle(idCnr, locker, locked[i], false) {
 			case 1:
-				return apistatus.IrregularObjectLock{}
+				return apistatus.LockNonRegularObject{}
 			case 0:
 				return errLockFailed
 			}
@@ -53,7 +53,7 @@ func (e *StorageEngine) lock(idCnr cid.ID, locker oid.ID, locked []oid.ID) error
 func (e *StorageEngine) lockSingle(idCnr cid.ID, locker, locked oid.ID, checkExists bool) (status uint8) {
 	// code is pretty similar to inhumeAddr, maybe unify?
 	root := false
-	var errIrregular apistatus.IrregularObjectLock
+	var errIrregular apistatus.LockNonRegularObject
 
 	var addrLocked address.Address
 	addrLocked.SetContainerID(&idCnr)

pkg/local_object_storage/metabase/lock.go

@@ -42,7 +42,7 @@ func (db *DB) Lock(cnr cid.ID, locker oid.ID, locked []oid.ID) error {
 		}
 
 		if firstIrregularObjectType(tx, cnr, bucketKeysLocked...) != object.TypeRegular {
-			return apistatus.IrregularObjectLock{}
+			return apistatus.LockNonRegularObject{}
 		}
 
 		bucketLocked, err := tx.CreateBucketIfNotExists(bucketNameLocked)

pkg/local_object_storage/metabase/lock_test.go

@@ -37,7 +37,7 @@ func TestDB_Lock(t *testing.T) {
 			err := meta.Put(db, obj, nil)
 			require.NoError(t, err, typ)
 
-			var e apistatus.IrregularObjectLock
+			var e apistatus.LockNonRegularObject
 
 			// try to lock it
 			err = db.Lock(cnr, *oidtest.ID(), []oid.ID{*obj.ID()})