[#52] morph: Extend MorphRuleChainStorage interface with ListTargetsIterator

* Update frostfs-contract package version in go.mod.
* Extend MorphRuleChainStorage interface with ListTargetsIterator and
  introduce its implementation.
* Check targets in inmemory implementation unit-tests.

Signed-off-by: Airat Arifullin <aarifullin@yadro.com>

go.mod

@@ -3,10 +3,10 @@ module git.frostfs.info/TrueCloudLab/policy-engine
 go 1.20
 
 require (
-	git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231129062201-a1b61d394958
+	git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0
-	github.com/google/uuid v1.3.0
+	github.com/google/uuid v1.3.1
 	github.com/mailru/easyjson v0.7.7
-	github.com/nspcc-dev/neo-go v0.103.0
+	github.com/nspcc-dev/neo-go v0.105.0
 	github.com/stretchr/testify v1.8.4
 	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63
 )
@@ -14,15 +14,22 @@ require (
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/golang/snappy v0.0.1 // indirect
 	github.com/hashicorp/golang-lru v0.6.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/mr-tron/base58 v1.2.0 // indirect
-	github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22 // indirect
+	github.com/nspcc-dev/go-ordered-json v0.0.0-20231123160306-3374ff1e7a3c // indirect
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5 // indirect
+	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231127165613-b35f351f0ba0 // indirect
 	github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954 // indirect
+	github.com/twmb/murmur3 v1.1.5 // indirect
+	go.etcd.io/bbolt v1.3.8 // indirect
+	go.uber.org/multierr v1.10.0 // indirect
+	go.uber.org/zap v1.26.0 // indirect
+	golang.org/x/crypto v0.17.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,49 +1,141 @@
-git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231129062201-a1b61d394958 h1:X9yPizADIhD3K/gdKVCthlAnf9aQ3UJJGnZgIwwixRQ=
+git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0 h1:FzurjElUwC7InY9v5rzXReKbfBL5yRJKSWJPq6BKhH0=
-git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231129062201-a1b61d394958/go.mod h1:rQWdsG18NaiFvkJpMguJev913KD/yleHaniRBkUyt0o=
+git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0/go.mod h1:F/fe1OoIDKr5Bz99q4sriuHDuf3aZefZy9ZsCqEtgxc=
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-golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
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+golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
+golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/term v0.15.0 h1:y/Oo/a/q3IXu26lQgl04j/gjuBDOBlx7X6Om1j2CPW4=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
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+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
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+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+rsc.io/tmplfunc v0.0.3 h1:53XFQh69AfOa8Tw0Jm7t+GV7KZhOi6jzsCzTtKbMvzU=

pkg/engine/inmemory/inmemory_test.go

@@ -1,11 +1,13 @@
 package inmemory
 
 import (
+	"bytes"
 	"testing"
 
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
 	resourcetest "git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource/testutil"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 	"github.com/stretchr/testify/require"
 )
 
@@ -63,6 +65,10 @@ func TestInmemory(t *testing.T) {
 		},
 	})
 
+	_, it, err := s.MorphRuleChainStorage().ListTargetsIterator(engine.Namespace)
+	require.NoError(t, err)
+	itemStacksEqual(t, it.Values, toStackItems(namespace))
+
 	s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, engine.NamespaceTarget(namespace2), &chain.Chain{
 		Rules: []chain.Rule{
 			{ // Deny all expect "native::object::get" for all objects expect "native::object::abc/xyz".
@@ -73,6 +79,10 @@ func TestInmemory(t *testing.T) {
 		},
 	})
 
+	_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Namespace)
+	require.NoError(t, err)
+	itemStacksEqual(t, it.Values, toStackItems(namespace, namespace2))
+
 	s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, engine.ContainerTarget(container), &chain.Chain{
 		Rules: []chain.Rule{
 			{ // Allow to actor2 to get objects from the specific container only if they have `Department=HR` attribute.
@@ -97,6 +107,14 @@ func TestInmemory(t *testing.T) {
 		},
 	})
 
+	_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Namespace)
+	require.NoError(t, err)
+	itemStacksEqual(t, it.Values, toStackItems(namespace, namespace2))
+
+	_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Container)
+	require.NoError(t, err)
+	itemStacksEqual(t, it.Values, toStackItems(container))
+
 	t.Run("bad subnet, namespace deny", func(t *testing.T) {
 		// Request initiating from the untrusted subnet.
 		reqBadIP := resourcetest.NewRequest("native::object::put", res, map[string]string{
@@ -175,6 +193,14 @@ func TestInmemory(t *testing.T) {
 				}},
 			})
 
+			_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Namespace)
+			require.NoError(t, err)
+			itemStacksEqual(t, it.Values, toStackItems(namespace, namespace2))
+
+			_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Container)
+			require.NoError(t, err)
+			itemStacksEqual(t, it.Values, toStackItems(container))
+
 			status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
 			require.Equal(t, chain.NoRuleFound, status)
 			require.False(t, ok)
@@ -190,6 +216,14 @@ func TestInmemory(t *testing.T) {
 				}},
 			})
 
+			_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Namespace)
+			require.NoError(t, err)
+			itemStacksEqual(t, it.Values, toStackItems(namespace, namespace2))
+
+			_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Container)
+			require.NoError(t, err)
+			itemStacksEqual(t, it.Values, toStackItems(container))
+
 			status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
 			require.Equal(t, chain.QuotaLimitReached, status)
 			require.True(t, ok)
@@ -198,9 +232,41 @@ func TestInmemory(t *testing.T) {
 			err := s.LocalStorage().RemoveOverride(chain.Ingress, engine.ContainerTarget(container), quotaRuleChainID)
 			require.NoError(t, err)
 
+			_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Namespace)
+			require.NoError(t, err)
+			itemStacksEqual(t, it.Values, toStackItems(namespace, namespace2))
+
+			_, it, err = s.MorphRuleChainStorage().ListTargetsIterator(engine.Container)
+			require.NoError(t, err)
+			itemStacksEqual(t, it.Values, toStackItems(container))
+
 			status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
 			require.Equal(t, chain.NoRuleFound, status)
 			require.False(t, ok)
 		})
 	})
 }
+
+func itemStacksEqual(t *testing.T, got []stackitem.Item, expected []stackitem.Item) {
+next:
+	for _, exp := range expected {
+		expBytes, err := exp.TryBytes()
+		require.NoError(t, err)
+		for _, v := range got {
+			vBytes, err := v.TryBytes()
+			require.NoError(t, err)
+			if bytes.Equal(vBytes, expBytes) {
+				continue next
+			}
+		}
+		t.Fatalf("not found %s", exp)
+	}
+}
+
+func toStackItems(names ...string) []stackitem.Item {
+	var items []stackitem.Item
+	for _, name := range names {
+		items = append(items, stackitem.NewByteArray([]byte(name)))
+	}
+	return items
+}

pkg/engine/inmemory/morph_storage.go

@@ -3,7 +3,10 @@ package inmemory
 import (
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
+	"github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
 	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 )
 
 type inmemoryMorphRuleChainStorage struct {
@@ -60,3 +63,48 @@ func (s *inmemoryMorphRuleChainStorage) GetAdmin() (util.Uint160, error) {
 func (s *inmemoryMorphRuleChainStorage) SetAdmin(_ util.Uint160) (util.Uint256, uint32, error) {
 	panic("not implemented")
 }
+
+func (s *inmemoryMorphRuleChainStorage) ListTargetsIterator(targetType engine.TargetType) (uuid uuid.UUID, it result.Iterator, err error) {
+	it.Values = make([]stackitem.Item, 0)
+
+	switch targetType {
+	case engine.Namespace:
+		// Listing targets may look bizarre, because inmemory rule chain storage use inmemory local overrides where
+		// targets are listed by chain names.
+		var targets []engine.Target
+		targets, err = s.nameToNamespaceChains.ListOverrideDefinedTargets(chain.Ingress)
+		if err != nil {
+			return
+		}
+		for _, t := range targets {
+			it.Values = append(it.Values, stackitem.NewByteArray([]byte(t.Name)))
+		}
+
+		targets, err = s.nameToNamespaceChains.ListOverrideDefinedTargets(chain.S3)
+		if err != nil {
+			return
+		}
+		for _, t := range targets {
+			it.Values = append(it.Values, stackitem.NewByteArray([]byte(t.Name)))
+		}
+	case engine.Container:
+		var targets []engine.Target
+		targets, err = s.nameToContainerChains.ListOverrideDefinedTargets(chain.Ingress)
+		if err != nil {
+			return
+		}
+		for _, t := range targets {
+			it.Values = append(it.Values, stackitem.NewByteArray([]byte(t.Name)))
+		}
+
+		targets, err = s.nameToContainerChains.ListOverrideDefinedTargets(chain.S3)
+		if err != nil {
+			return
+		}
+		for _, t := range targets {
+			it.Values = append(it.Values, stackitem.NewByteArray([]byte(t.Name)))
+		}
+	default:
+	}
+	return
+}

pkg/engine/interface.go

@@ -3,6 +3,8 @@ package engine
 import (
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
+	"github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 )
 
@@ -100,6 +102,9 @@ type MorphRuleChainStorageReader interface {
 	ListMorphRuleChains(name chain.Name, target Target) ([]*chain.Chain, error)
 
 	GetAdmin() (util.Uint160, error)
+
+	// ListTargetsIterator provides an iterator to list targets for which rules are defined.
+	ListTargetsIterator(targetType TargetType) (uuid.UUID, result.Iterator, error)
 }
 
 // MorphRuleChainStorage is the interface to read and manage data within a chain storage.

pkg/morph/policy/policy_contract_storage.go

@@ -10,6 +10,8 @@ import (
 	client "git.frostfs.info/TrueCloudLab/frostfs-contract/rpcclient/policy"
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
 	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
+	"github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
@@ -111,6 +113,14 @@ func (s *ContractStorage) ListMorphRuleChains(name chain.Name, target engine.Tar
 	return chains, nil
 }
 
+func (s *ContractStorage) ListTargetsIterator(targetType engine.TargetType) (uuid.UUID, result.Iterator, error) {
+	kind, err := policyKind(targetType)
+	if err != nil {
+		return uuid.UUID{}, result.Iterator{}, err
+	}
+	return s.contractInterface.ListTargets(big.NewInt(int64(kind)))
+}
+
 func (s *ContractStorage) GetAdmin() (util.Uint160, error) {
 	return s.contractInterface.GetAdmin()
 }
@@ -156,6 +166,14 @@ func (s *ContractStorageReader) GetAdmin() (util.Uint160, error) {
 	return s.contractReaderInterface.GetAdmin()
 }
 
+func (s *ContractStorageReader) ListTargetsIterator(targetType engine.TargetType) (uuid.UUID, result.Iterator, error) {
+	kind, err := policyKind(targetType)
+	if err != nil {
+		return uuid.UUID{}, result.Iterator{}, err
+	}
+	return s.contractReaderInterface.ListTargets(big.NewInt(int64(kind)))
+}
+
 func bytesFromStackItem(param stackitem.Item) ([]byte, error) {
 	switch param.Type() {
 	case stackitem.BufferT, stackitem.ByteArrayT, stackitem.IntegerT: