[#32] Use pkg/core interfaces to fetch container and netmap

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

go.sum

@@ -270,8 +270,6 @@ github.com/nspcc-dev/neo-go v0.73.1-pre.0.20200303142215-f5a1b928ce09/go.mod h1:
 github.com/nspcc-dev/neo-go v0.91.0/go.mod h1:G6HdOWvzQ6tlvFdvFSN/PgCzLPN/X/X4d5hTjFRUDcc=
 github.com/nspcc-dev/neo-go v0.91.1-pre.0.20200827184617-7560aa345a78 h1:stIa+nBXK8uDY/JZaxIZzAUfkzfaotVw2FbnHxO4aZI=
 github.com/nspcc-dev/neo-go v0.91.1-pre.0.20200827184617-7560aa345a78/go.mod h1:G6HdOWvzQ6tlvFdvFSN/PgCzLPN/X/X4d5hTjFRUDcc=
-github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200917104527-95ae0a649608 h1:rT3MBvM3u5D8p/V8lbt0TVP75nXQSC/YCwpORrv6QEA=
-github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200917104527-95ae0a649608/go.mod h1:FsFd1z4YzoEgPlltsUgnqna9qhcF87RHYjot0pby2L4=
 github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200925125840-c814cc62faf4 h1:+ko1UlGsPhKF6O1+ZDOwW7lNhXLEk+e/N/gdma5NNJo=
 github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200925125840-c814cc62faf4/go.mod h1:FsFd1z4YzoEgPlltsUgnqna9qhcF87RHYjot0pby2L4=
 github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200925143744-2cc58e36f8d7 h1:7/Dh5Mkk0uJD99EULqYvxULrUVtzN6Kn+KvmFuafE74=

pkg/services/object/acl/basic.go

@@ -3,27 +3,18 @@ package acl
 import (
 	"context"
 
-	"github.com/nspcc-dev/neofs-api-go/v2/acl"
-	"github.com/nspcc-dev/neofs-api-go/v2/container"
+	acl "github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
+	containerSDK "github.com/nspcc-dev/neofs-api-go/pkg/container"
 	"github.com/nspcc-dev/neofs-api-go/v2/object"
 	"github.com/nspcc-dev/neofs-api-go/v2/refs"
+	"github.com/nspcc-dev/neofs-node/pkg/core/container"
 	"github.com/pkg/errors"
 )
 
 type (
-	// ContainerGetter accesses NeoFS container storage.
-	// fixme: use core.container interface implementation
-	ContainerGetter interface {
-		Get(*refs.ContainerID) (*container.Container, error)
-	}
-
-	Classifier interface {
-		Classify(RequestV2, *refs.ContainerID) acl.Role
-	}
-
 	// BasicChecker checks basic ACL rules.
 	BasicChecker struct {
-		containers ContainerGetter
+		containers container.Source
 		sender     SenderClassifier
 		next       object.Service
 	}
@@ -62,7 +53,7 @@ var (
 // NewBasicChecker is a constructor for basic ACL checker of object requests.
 func NewBasicChecker(
 	c SenderClassifier,
-	cnr ContainerGetter,
+	cnr container.Source,
 	next object.Service) BasicChecker {
 
 	return BasicChecker{
@@ -247,8 +238,12 @@ func (b BasicChecker) findRequestInfo(
 	cid *refs.ContainerID,
 	op acl.Operation) (info requestInfo, err error) {
 
+	// container.Source interface implemented with SDK's definitions,
+	// so we have to convert id there.
+	containerID := containerSDK.NewIDFromV2(cid)
+
 	// fetch actual container
-	cnr, err := b.containers.Get(cid)
+	cnr, err := b.containers.Get(containerID)
 	if err != nil || cnr.GetOwnerID() == nil {
 		return info, ErrUnknownContainer
 	}

pkg/services/object/acl/classifier.go

@@ -4,23 +4,18 @@ import (
 	"bytes"
 	"crypto/ecdsa"
 
+	acl "github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
+	"github.com/nspcc-dev/neofs-api-go/pkg/container"
 	"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
-	sdk "github.com/nspcc-dev/neofs-api-go/pkg/owner"
-	"github.com/nspcc-dev/neofs-api-go/v2/acl"
-	"github.com/nspcc-dev/neofs-api-go/v2/container"
+	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-api-go/v2/refs"
 	"github.com/nspcc-dev/neofs-api-go/v2/session"
 	crypto "github.com/nspcc-dev/neofs-crypto"
+	core "github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/pkg/errors"
 )
 
 type (
-	// fixme: use core.netmap interface implementation
-	NetmapFetcher interface {
-		Current() (netmap.Netmap, error)
-		Previous(int) (netmap.Netmap, error)
-	}
-
 	InnerRingFetcher interface {
 		InnerRingKeys() ([][]byte, error)
 	}
@@ -32,12 +27,11 @@ type (
 
 	SenderClassifier struct {
 		innerRing InnerRingFetcher
-		netmap    NetmapFetcher
+		netmap    core.Source
 	}
 )
 
-// fixme: update classifier constructor
-func NewSenderClassifier(ir InnerRingFetcher, nm NetmapFetcher) SenderClassifier {
+func NewSenderClassifier(ir InnerRingFetcher, nm core.Source) SenderClassifier {
 	return SenderClassifier{
 		innerRing: ir,
 		netmap:    nm,
@@ -120,16 +114,16 @@ func requestOwner(req RequestV2) (*refs.OwnerID, *ecdsa.PublicKey, error) {
 	}
 
 	key := crypto.UnmarshalPublicKey(bodySignature.GetKey())
-	neo3wallet, err := sdk.NEO3WalletFromPublicKey(key)
+	neo3wallet, err := owner.NEO3WalletFromPublicKey(key)
 	if err != nil {
 		return nil, nil, errors.Wrap(err, "can't create neo3 wallet")
 	}
 
-	// form owner from public key
-	owner := new(refs.OwnerID)
-	owner.SetValue(neo3wallet.Bytes())
+	// form user from public key
+	user := new(refs.OwnerID)
+	user.SetValue(neo3wallet.Bytes())
 
-	return owner, key, nil
+	return user, key, nil
 }
 
 func originalBodySignature(v *session.RequestVerificationHeader) *refs.Signature {
@@ -165,7 +159,7 @@ func (c SenderClassifier) isContainerKey(
 	cnr *container.Container) (bool, error) {
 
 	// first check current netmap
-	nm, err := c.netmap.Current()
+	nm, err := core.GetLatestNetworkMap(c.netmap)
 	if err != nil {
 		return false, err
 	}
@@ -179,7 +173,7 @@ func (c SenderClassifier) isContainerKey(
 
 	// then check previous netmap, this can happen in-between epoch change
 	// when node migrates data from last epoch container
-	nm, err = c.netmap.Previous(1)
+	nm, err = core.GetPreviousNetworkMap(c.netmap)
 	if err != nil {
 		return false, err
 	}
@@ -188,7 +182,7 @@ func (c SenderClassifier) isContainerKey(
 }
 
 func lookupKeyInContainer(
-	nm netmap.Netmap,
+	nm *netmap.Netmap,
 	owner, cid []byte,
 	cnr *container.Container) (bool, error) {