[#118] frostfsid: Restrict keys to a single subject

Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>

.forgejo/workflows/codegen.yml

@@ -0,0 +1,22 @@
+name: Code generation
+on: [pull_request]
+
+jobs:
+  wrappers:
+    name: Generate wrappers
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.23'
+      - name: Generate wrappers
+        run: make generate-wrappers
+      # The command seems to be non-deterministic.
+      # However, with >20 runs I haven't been able to reproduce the issue.
+      # This `git diff` is here to print diff in case we catch the behaviour again.
+      - name: Print diff
+        run: git diff HEAD
+      - name: Check that nothing has changed
+        run: git diff-index --exit-code HEAD

.forgejo/workflows/dco.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v3
         with:
-          go-version: '1.21'
+          go-version: '1.23'
 
       - name: Run commit format checker
         uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3

.forgejo/workflows/tests.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go_versions: [ '1.21', '1.22' ]
+        go_versions: [ '1.22', '1.23' ]
       fail-fast: false
     steps:
       - uses: actions/checkout@v3

.github/CODEOWNERS

@@ -1 +0,0 @@
-*   @carpawell @fyrchik @cthulhu-rider

CHANGELOG.md

@@ -8,7 +8,17 @@ Changelog for FrostFS Contract
 ### Removed
 ### Updated
 ### Fixed
-### Updating from v0.18.0
+
+## [0.20.0]
+
+### Added
+- Add `ListFullSubjects` method to the frostfsid RPC client (#107)
+- Add `ListChainNames` method to the policy contract (#105)
+- Add `DeleteRecord` method to the nns contract (#114)
+- Emit notification on record changes in nns contract (#109)
+
+### Updated
+- neo-go to v0.106.3
 
 ## [0.18.0] - 2023-09-14 - Academy of Sciences Glacier
 

CODEOWNERS

@@ -0,0 +1,5 @@
+.forgejo/.*           @potyarkin
+Makefile              @potyarkin
+frostfsid/client/.*   @dkirillov
+.*                    @TrueCloudLab/storage-core-developers @TrueCloudLab/storage-core-committers @TrueCloudLab/storage-service-developers @TrueCloudLab/storage-service-committers
+tests/.*              @fyrchik

README.md

@@ -1,5 +1,5 @@
 <p align="center">
-<img src="./.github/logo.svg" width="500px" alt="FrostFS">
+<img src="./.forgejo/logo.svg" width="500px" alt="FrostFS">
 </p>
 <p align="center">
   <a href="https://frostfs.info">FrostFS</a> related smart contracts.

VERSION

@@ -1 +1 @@
-v0.19.1
+v0.20.0

common/version.go

@@ -4,15 +4,15 @@ import "github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 
 const (
 	major = 0
-	minor = 19
+	minor = 20
-	patch = 1
+	patch = 0
 
 	// Versions from which an update should be performed.
 	// These should be used in a group (so prevMinor can be equal to minor if there are
 	// any migration routines.
 	prevMajor = 0
-	prevMinor = 18
+	prevMinor = 19
-	prevPatch = 0
+	prevPatch = 3
 
 	Version = major*1_000_000 + minor*1_000 + patch
 
@@ -32,7 +32,7 @@ func CheckVersion(from int) {
 	if from < PrevVersion {
 		panic(ErrVersionMismatch + ": expected >=" + std.Itoa(PrevVersion, 10))
 	}
-	if from == Version {
+	if Version <= from {
 		panic(ErrAlreadyUpdated + ": " + std.Itoa(Version, 10))
 	}
 }

commonclient/waiter.go

@@ -0,0 +1,84 @@
+package commonclient
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/waiter"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/vmstate"
+)
+
+const alreadyExistsError = "already exists"
+
+type WaiterOptions struct {
+	// IgnoreAlreadyExistsError controls behavior for "already exists" error:
+	// - If set to true, it indicates that "already exists" error is not a problem, we should
+	//   wait for transaction as usual (this is the behavior of neo-go [waiter.PollingBased]).
+	// - If set to false, it indicates that "already exists" should be reported as an error.
+	IgnoreAlreadyExistsError bool
+
+	// VerifyExecResults controls whether waiter should ensure that transaction successfully
+	// enters blockchain block.
+	VerifyExecResults bool
+}
+
+// Waiter is a decorator on top of the standard [waiter.Waiter].
+// It provides additional behavior (controlled by [WaiterOptions]) on top of the standard
+// functionality of awaiting transactions.
+type Waiter struct {
+	waiter  waiter.Waiter
+	options WaiterOptions
+}
+
+var _ waiter.Waiter = (*Waiter)(nil)
+
+// NewWaiter decorates the specified waiter in a new [Waiter] instance.
+func NewWaiter(waiter waiter.Waiter, options WaiterOptions) *Waiter {
+	return &Waiter{
+		waiter:  waiter,
+		options: options,
+	}
+}
+
+// Wait allows to wait until transaction will be accepted to the chain.
+func (w *Waiter) Wait(h util.Uint256, vub uint32, err error) (*state.AppExecResult, error) {
+	if !w.options.IgnoreAlreadyExistsError && errIsAlreadyExists(err) {
+		return nil, err
+	}
+	result, err := w.waiter.Wait(h, vub, err)
+	return w.examineExecResult(result, err)
+}
+
+// WaitAny waits until at least one of the specified transactions will be accepted
+// to the chain.
+func (w *Waiter) WaitAny(ctx context.Context, vub uint32, hashes ...util.Uint256) (*state.AppExecResult, error) {
+	result, err := w.waiter.WaitAny(ctx, vub, hashes...)
+	return w.examineExecResult(result, err)
+}
+
+func (w *Waiter) examineExecResult(result *state.AppExecResult, err error) (*state.AppExecResult, error) {
+	if !w.options.VerifyExecResults || err != nil {
+		return result, err
+	}
+
+	if result.Execution.VMState != vmstate.Fault {
+		// Transaction didn't fail, so we just return result "as is"
+		return result, nil
+	}
+
+	// Transaction failed, we extract VM exception from it and report as an error
+	if result.FaultException != "" {
+		return result, fmt.Errorf("%s", result.FaultException)
+	}
+	return result, fmt.Errorf("transaction failed, stack=%v", result.Stack)
+}
+
+func errIsAlreadyExists(err error) bool {
+	if err == nil {
+		return false
+	}
+	return strings.Contains(strings.ToLower(err.Error()), alreadyExistsError)
+}

commonclient/waiter_test.go

@@ -0,0 +1,135 @@
+package commonclient
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/vmstate"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+type mockWaiter struct {
+	mock.Mock
+}
+
+func (w *mockWaiter) successfulResult(txHash util.Uint256) *state.AppExecResult {
+	return &state.AppExecResult{
+		Container: txHash,
+		Execution: state.Execution{
+			Trigger:        trigger.Application,
+			VMState:        vmstate.Halt,
+			GasConsumed:    100500,
+			Stack:          nil,
+			Events:         nil,
+			FaultException: "",
+		},
+	}
+}
+
+func (w *mockWaiter) failedResult(txHash util.Uint256, exception string) *state.AppExecResult {
+	return &state.AppExecResult{
+		Container: txHash,
+		Execution: state.Execution{
+			Trigger:        trigger.Application,
+			VMState:        vmstate.Fault,
+			GasConsumed:    100500,
+			Stack:          nil,
+			Events:         nil,
+			FaultException: exception,
+		},
+	}
+}
+
+func (m *mockWaiter) Wait(h util.Uint256, vub uint32, err error) (*state.AppExecResult, error) {
+	args := m.Called(h, vub, err)
+	result := args.Get(0)
+	if result == nil {
+		return nil, args.Error(1)
+	}
+	return result.(*state.AppExecResult), args.Error(1)
+}
+
+func (m *mockWaiter) WaitAny(ctx context.Context, vub uint32, hashes ...util.Uint256) (*state.AppExecResult, error) {
+	args := m.Called(ctx, vub, hashes)
+	result := args.Get(0)
+	if result == nil {
+		return nil, args.Error(1)
+	}
+	return result.(*state.AppExecResult), args.Error(1)
+}
+
+func TestWaiter(t *testing.T) {
+	txHash := util.Uint256{}
+	vub := uint32(100)
+
+	t.Run("ignore already exists error", func(t *testing.T) {
+		sendErr := fmt.Errorf("transaction already exists")
+		mw := &mockWaiter{}
+		mw.On("Wait", txHash, vub, mock.Anything).Return(mw.successfulResult(txHash), nil)
+
+		waiter := NewWaiter(mw, WaiterOptions{IgnoreAlreadyExistsError: true})
+		_, err := waiter.Wait(txHash, vub, sendErr)
+
+		require.NoError(t, err)
+	})
+
+	t.Run("report already exists error", func(t *testing.T) {
+		sendErr := fmt.Errorf("transaction already exists")
+		mw := &mockWaiter{}
+		mw.On("Wait", txHash, vub, mock.Anything).Return(mw.successfulResult(txHash), nil)
+
+		waiter := NewWaiter(mw, WaiterOptions{IgnoreAlreadyExistsError: false})
+		_, err := waiter.Wait(txHash, vub, sendErr)
+
+		require.Error(t, err)
+	})
+
+	t.Run("report wait error when transaction error is ignored", func(t *testing.T) {
+		waitErr := fmt.Errorf("mock error")
+		mw := &mockWaiter{}
+		mw.On("Wait", txHash, vub, nil).Return(nil, waitErr)
+
+		waiter := NewWaiter(mw, WaiterOptions{VerifyExecResults: false})
+		_, err := waiter.Wait(txHash, vub, nil)
+
+		require.ErrorIs(t, err, waitErr)
+	})
+
+	t.Run("report wait error when transaction error is verified", func(t *testing.T) {
+		waitErr := fmt.Errorf("mock error")
+		mw := &mockWaiter{}
+		mw.On("Wait", txHash, vub, nil).Return(nil, waitErr)
+
+		waiter := NewWaiter(mw, WaiterOptions{VerifyExecResults: true})
+		_, err := waiter.Wait(txHash, vub, nil)
+
+		require.ErrorIs(t, err, waitErr)
+	})
+
+	t.Run("ignore error from transaction", func(t *testing.T) {
+		txError := "mock error"
+		mw := &mockWaiter{}
+		mw.On("Wait", txHash, vub, nil).Return(mw.failedResult(txHash, txError), nil)
+
+		waiter := NewWaiter(mw, WaiterOptions{VerifyExecResults: false})
+		_, err := waiter.Wait(txHash, vub, nil)
+
+		require.NoError(t, err)
+	})
+
+	t.Run("examine error from transaction", func(t *testing.T) {
+		txError := "mock error"
+		mw := &mockWaiter{}
+		mw.On("Wait", txHash, vub, nil).Return(mw.failedResult(txHash, txError), nil)
+
+		waiter := NewWaiter(mw, WaiterOptions{VerifyExecResults: true})
+		_, err := waiter.Wait(txHash, vub, nil)
+
+		require.ErrorContains(t, err, txError)
+	})
+}

docs/globally-unique-domain-zone.md

@@ -0,0 +1,160 @@
+# Globally unique domain zone
+
+**Make sure you understand the [basic concepts](../nns/README.md) of `NNS`.**
+
+`Globally Unique Domains Zone` (`GUDZ`) is an extension of `NNS` that ensures unique names across multiple domain zones. When this option is enabled, all newly created domains will automatically receive a corresponding alias in the designated global zone. Deleting a domain will also remove its alias from the global zone.
+
+It's important to note that this feature is not retroactive: domains created before this option is enabled will not receive a global alias. Likewise, if the option is later disabled, domains that already have a `GUDZ` alias will retain their records. To fully disable `GUDZ`, all domains must be recreated with the option turned off.
+
+To enable `GUDZ`, add a `cnametgt=$(global domain)` `TXT` record that specifies the global zone.
+
+**Example:**
+
+Domains:
+- `poland`
+- `sweden`
+- `animals.org`
+
+It is necessary to associate the domain zones `.poland` and `.sweden` into the global zone `.animals`.
+
+![](img/GUDZ.png)
+
+Create domains:
+
+```
+frostfs-adm morph nns register --name="poland" --email="email@email.email"
+frostfs-adm morph nns register --name="sweden" --email="email@email.email"
+frostfs-adm morph nns register --name="org" --email="email@email.email"
+frostfs-adm morph nns register --name="animals.org" --email="email@email.email"
+```
+
+Add the `cnametgt` records:
+
+```
+frostfs-adm morph nns  add-record --name="poland" --data="cnametgt=animals.org" --type="txt" 
+frostfs-adm morph nns  add-record --name="sweden" --data="cnametgt=animals.org" --type="txt" 
+```
+
+Create a domain with mapping to the global zone:
+
+```
+frostfs-adm morph nns register --name="bober.poland" --email="email@email.email"
+```
+
+Add any `TXT` record
+
+```
+frostfs-adm morph nns  add-record --name="bober.poland" --data="CID" --type="txt"
+```
+
+Verify that the created domain has alias in the global zone
+
+```
+frostfs-adm morph nns tokens -v
+
+balance.frostfs
+animals.org
+group.frostfs
+container
+org
+container.frostfs
+proxy.frostfs
+policy.frostfs
+alphabet0.frostfs
+sweden
+frostfsid.frostfs
+bober.animals.org (CNAME: bober.poland)
+netmap.frostfs
+frostfs
+poland
+bober.poland
+```
+
+Create of a conflicting domain
+```
+frostfs-adm morph nns register --name="bober.sweden" --email="email@email.email"
+
+unable to register domain: script failed (FAULT state) due to an error: at instruction 1263 (THROW): unhandled exception: "global domain is already taken: bober.animals.org. Domain: bober.poland
+```
+
+**Disable GUDZ**
+Delete `cnametgt` records
+
+```
+frostfs-adm morph nns delete-records --type=txt --name=poland
+```
+Create `hamster.poland` and `hamster.sweden`
+```
+frostfs-adm morph nns register --name="hamster.poland" --email="email@email.email"
+frostfs-adm morph nns register --name="hamster.sweden" --email="email@email.email"
+```
+`hamster.poland` and `hamster.sweden` does not have alias
+```
+frostfs-adm morph nns tokens -v
+balance.frostfs
+animals.org
+group.frostfs
+container
+org
+container.frostfs
+proxy.frostfs
+policy.frostfs
+alphabet0.frostfs
+sweden
+frostfsid.frostfs
+bober.animals.org (CNAME: bober.poland)
+netmap.frostfs
+frostfs
+poland
+bober.poland
+hamster.poland
+```
+Delete global alias of `bober.poland`
+
+```
+ frostfs-adm morph nns delete-records --name="bober.poland" --type="txt"
+```
+
+
+```
+frostfs-adm morph nns tokens -v
+balance.frostfs
+animals.org
+group.frostfs
+container
+org
+container.frostfs
+proxy.frostfs
+policy.frostfs
+alphabet0.frostfs
+sweden
+frostfsid.frostfs
+netmap.frostfs
+frostfs
+poland
+bober.poland
+hamster.poland
+```
+Delete `bober.poland`
+```
+ frostfs-adm morph nns delete --name="bober.poland"
+```
+
+```
+frostfs-adm morph nns tokens -v
+balance.frostfs
+animals.org
+group.frostfs
+container
+org
+container.frostfs
+proxy.frostfs
+policy.frostfs
+alphabet0.frostfs
+sweden
+frostfsid.frostfs
+netmap.frostfs
+frostfs
+poland
+hamster.poland
+```

docs/img/GUDZ.drawio

@@ -0,0 +1,139 @@
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+        </mxCell>
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+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-3" value=".sweden" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-4" value=".poland" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-15" value="" style="endArrow=classic;html=1;rounded=0;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1">
+          <mxGeometry width="50" height="50" relative="1" as="geometry">
+            <mxPoint x="499.76" y="220" as="sourcePoint" />
+            <mxPoint x="499.76" y="280" as="targetPoint" />
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+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-16" value="&lt;font style=&quot;font-size: 5px;&quot;&gt;TXT cnametgt=&lt;/font&gt;&lt;font style=&quot;font-size: 5px;&quot;&gt;animals.org&lt;/font&gt;" style="text;html=1;align=center;verticalAlign=middle;resizable=0;points=[];autosize=1;strokeColor=none;fillColor=none;" vertex="1" parent="1">
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+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-18" value="&lt;span style=&quot;white-space: pre-wrap;&quot; data-src-align=&quot;0:10&quot; class=&quot;EzKURWReUAB5oZgtQNkl&quot;&gt;[ global&lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot; data-src-align=&quot;11:8&quot; class=&quot;EzKURWReUAB5oZgtQNkl&quot;&gt;domain&lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot; data-src-align=&quot;20:4&quot; class=&quot;EzKURWReUAB5oZgtQNkl&quot;&gt;zone ]&lt;/span&gt;" style="text;html=1;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;" vertex="1" parent="1">
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+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-19" value="&lt;font style=&quot;font-size: 5px;&quot;&gt;CNAME bober&lt;/font&gt;&lt;font style=&quot;font-size: 5px;&quot;&gt;.&lt;/font&gt;&lt;font style=&quot;font-size: 5px;&quot;&gt;poland&lt;/font&gt;" style="text;html=1;align=center;verticalAlign=middle;resizable=0;points=[];autosize=1;strokeColor=none;fillColor=none;" vertex="1" parent="1">
+          <mxGeometry x="465" y="430" width="70" height="30" as="geometry" />
+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-1" value=".ns" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-2" value=".org" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-4" value=".poland" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+        </mxCell>
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+        </mxCell>
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+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-9" value=".&lt;span lang=&quot;en&quot; class=&quot;Y2IQFc&quot;&gt;animals&lt;/span&gt;" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="440" y="-120" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-10" value="" style="endArrow=classic;html=1;rounded=0;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1">
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+            <mxPoint x="499.76" y="-180" as="sourcePoint" />
+            <mxPoint x="499.76" y="-120" as="targetPoint" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-11" value="" style="endArrow=classic;html=1;rounded=0;exitX=0.5;exitY=1;exitDx=0;exitDy=0;entryX=0.5;entryY=0;entryDx=0;entryDy=0;" edge="1" parent="1">
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+            <mxPoint x="309.71000000000004" y="-60" as="sourcePoint" />
+            <mxPoint x="309.71000000000004" as="targetPoint" />
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+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-12" value="bober" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+        </mxCell>
+        <mxCell id="Z9nLDmrU-mAa8Hye4rHX-13" value="&lt;span style=&quot;white-space: pre-wrap;&quot; data-src-align=&quot;0:10&quot; class=&quot;EzKURWReUAB5oZgtQNkl&quot;&gt;[ without global&lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot; data-src-align=&quot;11:8&quot; class=&quot;EzKURWReUAB5oZgtQNkl&quot;&gt;domain&lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot;&gt; &lt;/span&gt;&lt;span style=&quot;white-space: pre-wrap;&quot; data-src-align=&quot;20:4&quot; class=&quot;EzKURWReUAB5oZgtQNkl&quot;&gt;zone ]&lt;/span&gt;" style="text;html=1;align=center;verticalAlign=middle;whiteSpace=wrap;rounded=0;" vertex="1" parent="1">
+          <mxGeometry x="390" y="-300" width="180" height="30" as="geometry" />
+        </mxCell>
+      </root>
+    </mxGraphModel>
+  </diagram>
+</mxfile>

frostfsid/client/client.go

@@ -1,19 +1,20 @@
 package client
 
 import (
-	"errors"
 	"fmt"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-contract/commonclient"
 	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"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/neorpc/result"
+	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/notary"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/waiter"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
 	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 	"github.com/nspcc-dev/neo-go/pkg/vm/vmstate"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
@@ -22,11 +23,13 @@ import (
 type (
 	Client struct {
 		act      *actor.Actor
+		waiter   waiter.Waiter
 		contract util.Uint160
 	}
 
 	Options struct {
 		ProxyContract util.Uint160
+		Waiter        commonclient.WaiterOptions
 	}
 )
 
@@ -93,6 +96,7 @@ const (
 	createSubjectMethod       = "createSubject"
 	getSubjectMethod          = "getSubject"
 	getSubjectExtendedMethod  = "getSubjectExtended"
+	getSubjectKVMethod        = "getSubjectKV"
 	listSubjectsMethod        = "listSubjects"
 	addSubjectKeyMethod       = "addSubjectKey"
 	removeSubjectKeyMethod    = "removeSubjectKey"
@@ -150,17 +154,21 @@ func New(ra actor.RPCActor, acc *wallet.Account, contract util.Uint160, opt Opti
 	if err != nil {
 		return nil, fmt.Errorf("init actor: %w", err)
 	}
+	wtr := commonclient.NewWaiter(act, opt.Waiter)
 
 	return &Client{
 		act:      act,
+		waiter:   wtr,
 		contract: contract,
 	}, nil
 }
 
-// NewSimple creates a new Client using exising actor.Actor.
+// NewSimple creates a new Client using existing actor.Actor and default waiter options.
 func NewSimple(act *actor.Actor, contract util.Uint160) *Client {
+	wtr := commonclient.NewWaiter(act, commonclient.WaiterOptions{})
 	return &Client{
 		act:      act,
+		waiter:   wtr,
 		contract: contract,
 	}
 }
@@ -246,7 +254,7 @@ func (c Client) GetSubject(addr util.Uint160) (*Subject, error) {
 		return nil, err
 	}
 
-	return parseSubject(items)
+	return ParseSubject(items)
 }
 
 // GetSubjectExtended gets extended subject by address.
@@ -256,12 +264,50 @@ func (c Client) GetSubjectExtended(addr util.Uint160) (*SubjectExtended, error)
 		return nil, err
 	}
 
-	return parseSubjectExtended(items)
+	return ParseSubjectExtended(items)
+}
+
+// GetSubjectKV invokes `getSubjectKV` method of contract.
+func (c Client) GetSubjectKV(addr util.Uint160, name string) (string, error) {
+	return unwrap.UTF8String(c.act.Call(c.contract, getSubjectKVMethod, addr, name))
 }
 
 // ListSubjects gets all subjects.
 func (c Client) ListSubjects() ([]util.Uint160, error) {
-	return unwrapArrayOfUint160(commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listSubjectsMethod))
+	return UnwrapArrayOfUint160(commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listSubjectsMethod))
+}
+
+// ListFullSubjects gets list of subjects.
+func (c Client) ListFullSubjects(hashes []util.Uint160) ([]*Subject, error) {
+	w := io.NewBufBinWriter()
+
+	for _, hash := range hashes {
+		emit.AppCall(w.BinWriter, c.contract, getSubjectMethod, callflag.All, hash)
+	}
+
+	invoker, err := c.act.Run(w.Bytes())
+	if err != nil {
+		return nil, err
+	}
+	if invoker.State != vmstate.Halt.String() {
+		return nil, fmt.Errorf("invocation failed: %s", invoker.FaultException)
+	}
+	subjects := make([]*Subject, 0, len(invoker.Stack))
+
+	for _, item := range invoker.Stack {
+		arr, ok := item.Value().([]stackitem.Item)
+		if !ok {
+			return nil, fmt.Errorf("invalid subject")
+		}
+
+		subject, err := ParseSubject(arr)
+		if err != nil {
+			return nil, err
+		}
+		subjects = append(subjects, subject)
+	}
+
+	return subjects, nil
 }
 
 // AddSubjectKey adds extra public key to subject.
@@ -332,7 +378,7 @@ func (c Client) GetSubjectByKey(key *keys.PublicKey) (*Subject, error) {
 		return nil, err
 	}
 
-	return parseSubject(items)
+	return ParseSubject(items)
 }
 
 // GetSubjectByName gets subject by its name (namespace scope).
@@ -342,7 +388,7 @@ func (c Client) GetSubjectByName(namespace, subjectName string) (*Subject, error
 		return nil, err
 	}
 
-	return parseSubject(items)
+	return ParseSubject(items)
 }
 
 // GetSubjectKeyByName gets subject public key by its name (namespace scope).
@@ -381,7 +427,7 @@ func (c Client) GetNamespace(namespace string) (*Namespace, error) {
 		return nil, err
 	}
 
-	return parseNamespace(items)
+	return ParseNamespace(items)
 }
 
 // GetNamespaceExtended gets extended namespace.
@@ -391,7 +437,7 @@ func (c Client) GetNamespaceExtended(namespace string) (*NamespaceExtended, erro
 		return nil, err
 	}
 
-	return parseNamespaceExtended(items)
+	return ParseNamespaceExtended(items)
 }
 
 // ListNamespaces gets all namespaces.
@@ -401,12 +447,12 @@ func (c Client) ListNamespaces() ([]*Namespace, error) {
 		return nil, err
 	}
 
-	return parseNamespaces(items)
+	return ParseNamespaces(items)
 }
 
 // ListNamespaceSubjects gets all subjects from namespace.
 func (c Client) ListNamespaceSubjects(namespace string) ([]util.Uint160, error) {
-	return unwrapArrayOfUint160(commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listNamespaceSubjectsMethod, namespace))
+	return UnwrapArrayOfUint160(commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listNamespaceSubjectsMethod, namespace))
 }
 
 // CreateGroup creates a new group in specific namespace.
@@ -428,7 +474,7 @@ func (c Client) GetGroup(namespace string, groupID int64) (*Group, error) {
 		return nil, err
 	}
 
-	return parseGroup(items)
+	return ParseGroup(items)
 }
 
 // GetGroupExtended gets extended group.
@@ -438,7 +484,7 @@ func (c Client) GetGroupExtended(namespace string, groupID int64) (*GroupExtende
 		return nil, err
 	}
 
-	return parseGroupExtended(items)
+	return ParseGroupExtended(items)
 }
 
 // SetGroupName updates subject name.
@@ -490,7 +536,7 @@ func (c Client) GetGroupByName(namespace, groupName string) (*Group, error) {
 		return nil, err
 	}
 
-	return parseGroup(items)
+	return ParseGroup(items)
 }
 
 // ListGroups gets all groups in specific namespace.
@@ -500,7 +546,7 @@ func (c Client) ListGroups(namespace string) ([]*Group, error) {
 		return nil, err
 	}
 
-	return parseGroups(items)
+	return ParseGroups(items)
 }
 
 // AddSubjectToGroup adds a new subject to group.
@@ -529,7 +575,7 @@ func (c Client) RemoveSubjectFromGroupCall(addr util.Uint160, groupID int64) (me
 
 // ListGroupSubjects gets all subjects in specific group.
 func (c Client) ListGroupSubjects(namespace string, groupID int64) ([]util.Uint160, error) {
-	return unwrapArrayOfUint160(commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listGroupSubjectsMethod, namespace, groupID))
+	return UnwrapArrayOfUint160(commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listGroupSubjectsMethod, namespace, groupID))
 }
 
 // DeleteGroup deletes group.
@@ -567,18 +613,14 @@ func (c Client) ListNonEmptyNamespaces() ([]string, error) {
 	return res, nil
 }
 
-// Wait invokes underlying wait method on actor.Actor.
+// Wait waits until the specified transaction is accepted to the chain.
-// Notice that "already	exists" err value is treated as an error by this routine unlike actor.Waiter.
 func (c Client) Wait(tx util.Uint256, vub uint32, err error) (*state.AppExecResult, error) {
-	if err != nil {
+	return c.Waiter().Wait(tx, vub, err)
-		return nil, err
-	}
-	return c.act.Wait(tx, vub, err)
 }
 
 // Waiter returns underlying waiter.Waiter.
 func (c Client) Waiter() waiter.Waiter {
-	return c.act
+	return c.waiter
 }
 
 // ParseGroupID fetch groupID from stack after creating group method invocation.
@@ -612,302 +654,3 @@ func (c Client) ListNonEmptyGroups(namespace string) ([]string, error) {
 
 	return res, nil
 }
-
-func unwrapArrayOfUint160(items []stackitem.Item, err error) ([]util.Uint160, error) {
-	if err != nil {
-		return nil, err
-	}
-
-	return unwrap.ArrayOfUint160(makeValidRes(stackitem.NewArray(items)))
-}
-
-func makeValidRes(item stackitem.Item) (*result.Invoke, error) {
-	return &result.Invoke{
-		Stack: []stackitem.Item{item},
-		State: vmstate.Halt.String(),
-	}, nil
-}
-
-func makeResFromAppExec(res *state.AppExecResult) (*result.Invoke, error) {
-	return &result.Invoke{
-		Stack: res.Stack,
-		State: res.VMState.String(),
-	}, nil
-}
-
-func parseSubject(structArr []stackitem.Item) (*Subject, error) {
-	if len(structArr) < 5 {
-		return nil, errors.New("invalid response subject struct")
-	}
-
-	var (
-		err  error
-		subj Subject
-	)
-
-	subj.PrimaryKey, err = unwrap.PublicKey(makeValidRes(structArr[0]))
-	if err != nil {
-		return nil, err
-	}
-
-	if !structArr[1].Equals(stackitem.Null{}) {
-		subj.AdditionalKeys, err = unwrap.ArrayOfPublicKeys(makeValidRes(structArr[1]))
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	if !structArr[2].Equals(stackitem.Null{}) {
-		subj.Namespace, err = unwrap.UTF8String(makeValidRes(structArr[2]))
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	if !structArr[2].Equals(stackitem.Null{}) {
-		subj.Name, err = unwrap.UTF8String(makeValidRes(structArr[3]))
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	subj.KV, err = parseMap(structArr[4])
-	if err != nil {
-		return nil, err
-	}
-
-	return &subj, nil
-}
-
-func parseSubjectExtended(structArr []stackitem.Item) (*SubjectExtended, error) {
-	if len(structArr) < 6 {
-		return nil, errors.New("invalid response subject extended struct")
-	}
-
-	var (
-		err  error
-		subj SubjectExtended
-	)
-
-	subj.PrimaryKey, err = unwrap.PublicKey(makeValidRes(structArr[0]))
-	if err != nil {
-		return nil, err
-	}
-
-	if !structArr[1].Equals(stackitem.Null{}) {
-		subj.AdditionalKeys, err = unwrap.ArrayOfPublicKeys(makeValidRes(structArr[1]))
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	nsBytes, err := structArr[2].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-	subj.Namespace = string(nsBytes)
-
-	nameBytes, err := structArr[3].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-	subj.Name = string(nameBytes)
-
-	subj.KV, err = parseMap(structArr[4])
-	if err != nil {
-		return nil, err
-	}
-
-	if !structArr[5].Equals(stackitem.Null{}) {
-		groupItems, ok := structArr[5].Value().([]stackitem.Item)
-		if !ok {
-			return nil, fmt.Errorf("invalid groups field")
-		}
-
-		subj.Groups, err = parseGroups(groupItems)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return &subj, nil
-}
-
-func parseMap(item stackitem.Item) (map[string]string, error) {
-	if item.Equals(stackitem.Null{}) {
-		return nil, nil
-	}
-
-	metaMap, err := unwrap.Map(makeValidRes(item))
-	if err != nil {
-		return nil, err
-	}
-
-	meta, ok := metaMap.Value().([]stackitem.MapElement)
-	if !ok {
-		return nil, errors.New("invalid map type")
-	}
-
-	res := make(map[string]string, len(meta))
-	for _, element := range meta {
-		key, err := element.Key.TryBytes()
-		if err != nil {
-			return nil, err
-		}
-		val, err := element.Value.TryBytes()
-		if err != nil {
-			return nil, err
-		}
-		res[string(key)] = string(val)
-	}
-
-	return res, nil
-}
-
-func parseNamespace(structArr []stackitem.Item) (*Namespace, error) {
-	if len(structArr) < 1 {
-		return nil, errors.New("invalid response namespace struct")
-	}
-
-	name, err := structArr[0].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	return &Namespace{Name: string(name)}, nil
-}
-
-func parseNamespaceExtended(structArr []stackitem.Item) (*NamespaceExtended, error) {
-	if len(structArr) < 3 {
-		return nil, errors.New("invalid response namespace extended struct")
-	}
-
-	name, err := structArr[0].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	groupCount, err := structArr[1].TryInteger()
-	if err != nil {
-		return nil, err
-	}
-
-	subjectCount, err := structArr[2].TryInteger()
-	if err != nil {
-		return nil, err
-	}
-
-	return &NamespaceExtended{
-		Name:          string(name),
-		GroupsCount:   groupCount.Int64(),
-		SubjectsCount: subjectCount.Int64(),
-	}, nil
-}
-
-func parseNamespaces(items []stackitem.Item) ([]*Namespace, error) {
-	var err error
-	res := make([]*Namespace, len(items))
-
-	for i := 0; i < len(items); i++ {
-		arr, ok := items[i].Value().([]stackitem.Item)
-		if !ok {
-			return nil, fmt.Errorf("invalid namespace type")
-		}
-		res[i], err = parseNamespace(arr)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return res, nil
-}
-
-func parseGroup(structArr []stackitem.Item) (*Group, error) {
-	if len(structArr) < 4 {
-		return nil, errors.New("invalid response group struct")
-	}
-
-	groupID, err := structArr[0].TryInteger()
-	if err != nil {
-		return nil, err
-	}
-
-	name, err := structArr[1].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	namespace, err := structArr[2].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	kvs, err := parseMap(structArr[3])
-	if err != nil {
-		return nil, err
-	}
-
-	return &Group{
-		ID:        groupID.Int64(),
-		Name:      string(name),
-		Namespace: string(namespace),
-		KV:        kvs,
-	}, nil
-}
-
-func parseGroupExtended(structArr []stackitem.Item) (*GroupExtended, error) {
-	if len(structArr) < 5 {
-		return nil, errors.New("invalid response group extended struct")
-	}
-
-	groupID, err := structArr[0].TryInteger()
-	if err != nil {
-		return nil, err
-	}
-
-	name, err := structArr[1].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	namespace, err := structArr[2].TryBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	kvs, err := parseMap(structArr[3])
-	if err != nil {
-		return nil, err
-	}
-
-	subjectCount, err := structArr[4].TryInteger()
-	if err != nil {
-		return nil, err
-	}
-
-	return &GroupExtended{
-		ID:            groupID.Int64(),
-		Name:          string(name),
-		Namespace:     string(namespace),
-		KV:            kvs,
-		SubjectsCount: subjectCount.Int64(),
-	}, nil
-}
-
-func parseGroups(items []stackitem.Item) ([]*Group, error) {
-	var err error
-	res := make([]*Group, len(items))
-
-	for i := 0; i < len(items); i++ {
-		arr, ok := items[i].Value().([]stackitem.Item)
-		if !ok {
-			return nil, fmt.Errorf("invalid group type")
-		}
-		res[i], err = parseGroup(arr)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return res, nil
-}

frostfsid/client/utils.go

@@ -0,0 +1,312 @@
+package client
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neo-go/pkg/vm/vmstate"
+)
+
+func UnwrapArrayOfUint160(items []stackitem.Item, err error) ([]util.Uint160, error) {
+	if err != nil {
+		return nil, err
+	}
+
+	return unwrap.ArrayOfUint160(makeValidRes(stackitem.NewArray(items)))
+}
+
+func ParseSubject(structArr []stackitem.Item) (*Subject, error) {
+	if len(structArr) < 5 {
+		return nil, errors.New("invalid response subject struct")
+	}
+
+	var (
+		err  error
+		subj Subject
+	)
+
+	subj.PrimaryKey, err = unwrap.PublicKey(makeValidRes(structArr[0]))
+	if err != nil {
+		return nil, err
+	}
+
+	if !structArr[1].Equals(stackitem.Null{}) {
+		subj.AdditionalKeys, err = unwrap.ArrayOfPublicKeys(makeValidRes(structArr[1]))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if !structArr[2].Equals(stackitem.Null{}) {
+		subj.Namespace, err = unwrap.UTF8String(makeValidRes(structArr[2]))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if !structArr[2].Equals(stackitem.Null{}) {
+		subj.Name, err = unwrap.UTF8String(makeValidRes(structArr[3]))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	subj.KV, err = ParseMap(structArr[4])
+	if err != nil {
+		return nil, err
+	}
+
+	return &subj, nil
+}
+
+func ParseSubjectExtended(structArr []stackitem.Item) (*SubjectExtended, error) {
+	if len(structArr) < 6 {
+		return nil, errors.New("invalid response subject extended struct")
+	}
+
+	var (
+		err  error
+		subj SubjectExtended
+	)
+
+	subj.PrimaryKey, err = unwrap.PublicKey(makeValidRes(structArr[0]))
+	if err != nil {
+		return nil, err
+	}
+
+	if !structArr[1].Equals(stackitem.Null{}) {
+		subj.AdditionalKeys, err = unwrap.ArrayOfPublicKeys(makeValidRes(structArr[1]))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	nsBytes, err := structArr[2].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+	subj.Namespace = string(nsBytes)
+
+	nameBytes, err := structArr[3].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+	subj.Name = string(nameBytes)
+
+	subj.KV, err = ParseMap(structArr[4])
+	if err != nil {
+		return nil, err
+	}
+
+	if !structArr[5].Equals(stackitem.Null{}) {
+		groupItems, ok := structArr[5].Value().([]stackitem.Item)
+		if !ok {
+			return nil, fmt.Errorf("invalid groups field")
+		}
+
+		subj.Groups, err = ParseGroups(groupItems)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return &subj, nil
+}
+
+func ParseMap(item stackitem.Item) (map[string]string, error) {
+	if item.Equals(stackitem.Null{}) {
+		return nil, nil
+	}
+
+	metaMap, err := unwrap.Map(makeValidRes(item))
+	if err != nil {
+		return nil, err
+	}
+
+	meta, ok := metaMap.Value().([]stackitem.MapElement)
+	if !ok {
+		return nil, errors.New("invalid map type")
+	}
+
+	res := make(map[string]string, len(meta))
+	for _, element := range meta {
+		key, err := element.Key.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		val, err := element.Value.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		res[string(key)] = string(val)
+	}
+
+	return res, nil
+}
+
+func ParseNamespace(structArr []stackitem.Item) (*Namespace, error) {
+	if len(structArr) < 1 {
+		return nil, errors.New("invalid response namespace struct")
+	}
+
+	name, err := structArr[0].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	return &Namespace{Name: string(name)}, nil
+}
+
+func ParseNamespaceExtended(structArr []stackitem.Item) (*NamespaceExtended, error) {
+	if len(structArr) < 3 {
+		return nil, errors.New("invalid response namespace extended struct")
+	}
+
+	name, err := structArr[0].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	groupCount, err := structArr[1].TryInteger()
+	if err != nil {
+		return nil, err
+	}
+
+	subjectCount, err := structArr[2].TryInteger()
+	if err != nil {
+		return nil, err
+	}
+
+	return &NamespaceExtended{
+		Name:          string(name),
+		GroupsCount:   groupCount.Int64(),
+		SubjectsCount: subjectCount.Int64(),
+	}, nil
+}
+
+func ParseNamespaces(items []stackitem.Item) ([]*Namespace, error) {
+	var err error
+	res := make([]*Namespace, len(items))
+
+	for i := 0; i < len(items); i++ {
+		arr, ok := items[i].Value().([]stackitem.Item)
+		if !ok {
+			return nil, fmt.Errorf("invalid namespace type")
+		}
+		res[i], err = ParseNamespace(arr)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return res, nil
+}
+
+func ParseGroup(structArr []stackitem.Item) (*Group, error) {
+	if len(structArr) < 4 {
+		return nil, errors.New("invalid response group struct")
+	}
+
+	groupID, err := structArr[0].TryInteger()
+	if err != nil {
+		return nil, err
+	}
+
+	name, err := structArr[1].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	namespace, err := structArr[2].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	kvs, err := ParseMap(structArr[3])
+	if err != nil {
+		return nil, err
+	}
+
+	return &Group{
+		ID:        groupID.Int64(),
+		Name:      string(name),
+		Namespace: string(namespace),
+		KV:        kvs,
+	}, nil
+}
+
+func ParseGroupExtended(structArr []stackitem.Item) (*GroupExtended, error) {
+	if len(structArr) < 5 {
+		return nil, errors.New("invalid response group extended struct")
+	}
+
+	groupID, err := structArr[0].TryInteger()
+	if err != nil {
+		return nil, err
+	}
+
+	name, err := structArr[1].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	namespace, err := structArr[2].TryBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	kvs, err := ParseMap(structArr[3])
+	if err != nil {
+		return nil, err
+	}
+
+	subjectCount, err := structArr[4].TryInteger()
+	if err != nil {
+		return nil, err
+	}
+
+	return &GroupExtended{
+		ID:            groupID.Int64(),
+		Name:          string(name),
+		Namespace:     string(namespace),
+		KV:            kvs,
+		SubjectsCount: subjectCount.Int64(),
+	}, nil
+}
+
+func ParseGroups(items []stackitem.Item) ([]*Group, error) {
+	var err error
+	res := make([]*Group, len(items))
+
+	for i := 0; i < len(items); i++ {
+		arr, ok := items[i].Value().([]stackitem.Item)
+		if !ok {
+			return nil, fmt.Errorf("invalid group type")
+		}
+		res[i], err = ParseGroup(arr)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return res, nil
+}
+
+func makeValidRes(item stackitem.Item) (*result.Invoke, error) {
+	return &result.Invoke{
+		Stack: []stackitem.Item{item},
+		State: vmstate.Halt.String(),
+	}, nil
+}
+
+func makeResFromAppExec(res *state.AppExecResult) (*result.Invoke, error) {
+	return &result.Invoke{
+		Stack: res.Stack,
+		State: res.VMState.String(),
+	}, nil
+}

frostfsid/config.yml

@@ -7,6 +7,7 @@ safemethods:
   - "getGroupByName"
   - "getNamespace"
   - "getNamespaceExtended"
+  - "getSubjectKV"
   - "getSubject"
   - "getSubjectExtended"
   - "getSubjectByKey"

frostfsid/doc.go

@@ -20,6 +20,7 @@ FrostFSID contract does not produce notifications to process.
  | `G` + [ RIPEMD160 of namespace ] + [ 8 byte group id ] + [ subject address ] | []byte{1}                      | subject that belongs to the group             |
  | `c`                                                                          | Int                            | group id counter                              |
  | `m` + [ RIPEMD160 of namespace ] + [ RIPEMD160 of subject name ]             | Serialized group id int        | group name to group id index                  |
+ | `A` + [ subject address ]                                                    | bool                           | means that the wallet has been used           |
 
 
 */

frostfsid/frostfsid_contract.go

@@ -14,6 +14,13 @@ import (
 )
 
 type (
+	// Subject represents a subject entity.
+	//
+	// Fields:
+	//   - Namespace: a string representing the namespace of the subject.
+	//   - Name: a string representing the name of the subject.
+	//     The name must match the following regex pattern: ^[\w+=,.@-]{1,64}$
+	// The Subject is stored in the storage as a hash(namespace) + hash(name).
 	Subject struct {
 		PrimaryKey     interop.PublicKey
 		AdditionalKeys []interop.PublicKey
@@ -31,6 +38,15 @@ type (
 		Groups         []Group
 	}
 
+	// Namespace represents a namespace.
+	//
+	// Fields:
+	//   - Name: a string representing the name of the namespace.
+	//     The custom name must match the following regex pattern:
+	//     (^$)|(^[a-z0-9]{1,2}$)|(^[a-z0-9][a-z0-9-]{1,48}[a-z0-9]$)
+	//     An empty Name is considered the <root> namespace.
+	//
+	// The Namespace is stored in the storage as a hash(name).
 	Namespace struct {
 		Name string
 	}
@@ -41,6 +57,18 @@ type (
 		SubjectsCount int
 	}
 
+	// Group represents a group entity.
+	//
+	// Fields:
+	//   - ID: an integer representing the unique identifier of the group.
+	//     The ID is generated upon creation and is the sequential number of the group within the namespace.
+	//     It cannot be changed once set.
+	//   - Name: a string representing the name of the group.
+	//     The name must match the following regex pattern: [\w+=,.@-]{1,128}$
+	//   - Namespace: a string representing the namespace of the group.
+	//     A group exists only within one namespace.
+	//
+	// The group is stored in the storage as a hash(namespace) + hash(name).
 	Group struct {
 		ID        int
 		Name      string
@@ -68,6 +96,7 @@ const (
 	groupSubjectsKeysPrefix      = 'G'
 	groupCounterKey              = 'c'
 	namespaceGroupsNamesPrefix   = 'm'
+	addressPrefix                = 'A'
 )
 
 func _deploy(data any, isUpdate bool) {
@@ -84,12 +113,34 @@ func _deploy(data any, isUpdate bool) {
 		storage.Put(ctx, adminKey, args.admin)
 	}
 
+	if isUpdate {
+		it := storage.Find(ctx, subjectKeysPrefix, storage.ValuesOnly)
+		for iterator.Next(it) {
+			subjectRaw := iterator.Value(it)
+			subject := std.Deserialize(subjectRaw.([]byte)).(Subject)
+			address := addressKey(contract.CreateStandardAccount(subject.PrimaryKey))
+			if storage.Get(ctx, address) != nil {
+				panic("frostfsid contract contains duplicate keys")
+			}
+			storage.Put(ctx, address, true)
+
+			for i := 0; i < len(subject.AdditionalKeys); i++ {
+				address = addressKey(contract.CreateStandardAccount(subject.AdditionalKeys[i]))
+				if storage.Get(ctx, address) != nil {
+					panic("frostfsid contract contains duplicate keys")
+				}
+				storage.Put(ctx, address, true)
+			}
+		}
+	}
+
 	storage.Put(ctx, groupCounterKey, 0)
 	storage.Put(ctx, namespaceKey(""), std.Serialize(Namespace{}))
 
 	runtime.Log("frostfsid contract initialized")
 }
 
+// SetAdmin sets the admin address for the contract.
 func SetAdmin(addr interop.Hash160) {
 	ctx := storage.GetContext()
 	if !common.HasUpdateAccess() {
@@ -99,6 +150,7 @@ func SetAdmin(addr interop.Hash160) {
 	storage.Put(ctx, adminKey, addr)
 }
 
+// ClearAdmin removes the admin address from the contract storage.
 func ClearAdmin() {
 	ctx := storage.GetContext()
 	if !common.HasUpdateAccess() {
@@ -108,6 +160,7 @@ func ClearAdmin() {
 	storage.Delete(ctx, adminKey)
 }
 
+// GetAdmin retrieves the admin address from the contract storage.
 func GetAdmin() interop.Hash160 {
 	ctx := storage.GetReadOnlyContext()
 	return storage.Get(ctx, adminKey).(interop.Hash160)
@@ -129,6 +182,7 @@ func Version() int {
 	return common.Version
 }
 
+// CreateSubject creates a new subject in the specified namespace with the provided public key.
 func CreateSubject(ns string, key interop.PublicKey) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -150,6 +204,11 @@ func CreateSubject(ns string, key interop.PublicKey) {
 		panic("key is occupied")
 	}
 
+	allAddressKey := addressKey(addr)
+	if storage.Get(ctx, allAddressKey) != nil {
+		panic("key is occupied by another additional key")
+	}
+
 	nsKey := namespaceKey(ns)
 	data = storage.Get(ctx, nsKey).([]byte)
 	if data == nil {
@@ -165,10 +224,12 @@ func CreateSubject(ns string, key interop.PublicKey) {
 
 	nsSubjKey := namespaceSubjectKey(ns, addr)
 	storage.Put(ctx, nsSubjKey, []byte{1})
+	storage.Put(ctx, allAddressKey, true)
 
 	runtime.Notify("CreateSubject", interop.Hash160(addr))
 }
 
+// AddSubjectKey adds an additional public key to a subject with the specified address.
 func AddSubjectKey(addr interop.Hash160, key interop.PublicKey) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -180,6 +241,11 @@ func AddSubjectKey(addr interop.Hash160, key interop.PublicKey) {
 		panic("incorrect public key length")
 	}
 
+	addressKey := addressKey(contract.CreateStandardAccount(key))
+	if storage.Get(ctx, addressKey) != nil {
+		panic("key is occupied")
+	}
+
 	saKey := subjectAdditionalKey(key, addr)
 	data := storage.Get(ctx, saKey).([]byte)
 	if data != nil {
@@ -197,9 +263,11 @@ func AddSubjectKey(addr interop.Hash160, key interop.PublicKey) {
 	subject.AdditionalKeys = append(subject.AdditionalKeys, key)
 
 	storage.Put(ctx, sKey, std.Serialize(subject))
+	storage.Put(ctx, addressKey, true)
 	runtime.Notify("AddSubjectKey", addr, key)
 }
 
+// RemoveSubjectKey removes an additional public key from the subject with the specified address.
 func RemoveSubjectKey(addr interop.Hash160, key interop.PublicKey) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -235,9 +303,11 @@ func RemoveSubjectKey(addr interop.Hash160, key interop.PublicKey) {
 	subject.AdditionalKeys = additionalKeys
 
 	storage.Put(ctx, sKey, std.Serialize(subject))
+	storage.Delete(ctx, addressKey(contract.CreateStandardAccount(key)))
 	runtime.Notify("RemoveSubjectKey", addr, key)
 }
 
+// SetSubjectName sets a new name for the subject with the specified address.
 func SetSubjectName(addr interop.Hash160, name string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -262,6 +332,7 @@ func SetSubjectName(addr interop.Hash160, name string) {
 	runtime.Notify("SetSubjectName", addr, name)
 }
 
+// SetSubjectKV sets a key-value pair for the subject with the specified address.
 func SetSubjectKV(addr interop.Hash160, key, val string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -286,6 +357,7 @@ func SetSubjectKV(addr interop.Hash160, key, val string) {
 	runtime.Notify("SetSubjectKV", addr, key, val)
 }
 
+// DeleteSubjectKV deletes a key-value pair from the subject with the specified address.
 func DeleteSubjectKV(addr interop.Hash160, key string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -307,6 +379,7 @@ func DeleteSubjectKV(addr interop.Hash160, key string) {
 	runtime.Notify("DeleteSubjectKV", addr, key)
 }
 
+// DeleteSubject deletes the subject with the specified address.
 func DeleteSubject(addr interop.Hash160) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -324,6 +397,7 @@ func DeleteSubject(addr interop.Hash160) {
 
 	for i := 0; i < len(subj.AdditionalKeys); i++ {
 		storage.Delete(ctx, subjectAdditionalKey(subj.AdditionalKeys[i], addr))
+		storage.Delete(ctx, addressKey(contract.CreateStandardAccount(subj.AdditionalKeys[i])))
 	}
 	storage.Delete(ctx, sKey)
 
@@ -333,6 +407,7 @@ func DeleteSubject(addr interop.Hash160) {
 	runtime.Notify("DeleteSubject", addr)
 }
 
+// GetSubject retrieves the subject with the specified address.
 func GetSubject(addr interop.Hash160) Subject {
 	if len(addr) != interop.Hash160Len {
 		panic("incorrect address length")
@@ -348,6 +423,7 @@ func GetSubject(addr interop.Hash160) Subject {
 	return std.Deserialize(data).(Subject)
 }
 
+// GetSubjectExtended retrieves the extended information of the subject with the specified address.
 func GetSubjectExtended(addr interop.Hash160) SubjectExtended {
 	subj := GetSubject(addr)
 	ctx := storage.GetReadOnlyContext()
@@ -379,6 +455,7 @@ func GetSubjectExtended(addr interop.Hash160) SubjectExtended {
 	return subjExt
 }
 
+// GetSubjectByKey retrieves the subject associated with the provided public key.
 func GetSubjectByKey(key interop.PublicKey) Subject {
 	if len(key) != interop.PublicKeyCompressedLen {
 		panic("incorrect key length")
@@ -407,12 +484,14 @@ func GetSubjectByKey(key interop.PublicKey) Subject {
 	panic("subject not found")
 }
 
+// GetSubjectByName retrieves the subject with the specified name within the given namespace.
 func GetSubjectByName(ns, name string) Subject {
 	key := GetSubjectKeyByName(ns, name)
 	addr := contract.CreateStandardAccount(key)
 	return GetSubject(addr)
 }
 
+// GetSubjectKeyByName retrieves the public key of the subject with the specified namespace and name.
 func GetSubjectKeyByName(ns, name string) interop.PublicKey {
 	if name == "" {
 		panic("invalid or name")
@@ -429,11 +508,40 @@ func GetSubjectKeyByName(ns, name string) interop.PublicKey {
 	return subjKey
 }
 
+// GetSubjectKV GetSubjectKey returns the value associated with the key for the subject.
+func GetSubjectKV(addr interop.Hash160, name string) string {
+	if len(addr) != interop.Hash160Len {
+		panic("incorrect address length")
+	}
+
+	ctx := storage.GetReadOnlyContext()
+	sKey := subjectKeyFromAddr(addr)
+	data := storage.Get(ctx, sKey).([]byte)
+	if data == nil {
+		return ""
+	}
+
+	sbj := std.Deserialize(data).(Subject)
+
+	if sbj.KV == nil {
+		return ""
+	}
+
+	for k, v := range sbj.KV {
+		if k == name {
+			return v
+		}
+	}
+
+	return ""
+}
+
 func ListSubjects() iterator.Iterator {
 	ctx := storage.GetReadOnlyContext()
 	return storage.Find(ctx, []byte{subjectKeysPrefix}, storage.KeysOnly|storage.RemovePrefix)
 }
 
+// CreateNamespace creates a new namespace with the specified name.
 func CreateNamespace(ns string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -452,6 +560,7 @@ func CreateNamespace(ns string) {
 	runtime.Notify("CreateNamespace", ns)
 }
 
+// GetNamespace retrieves the namespace with the specified name.
 func GetNamespace(ns string) Namespace {
 	ctx := storage.GetReadOnlyContext()
 	nsKey := namespaceKey(ns)
@@ -463,6 +572,7 @@ func GetNamespace(ns string) Namespace {
 	return std.Deserialize(data).(Namespace)
 }
 
+// GetNamespaceExtended retrieves extended information about the namespace.
 func GetNamespaceExtended(ns string) NamespaceExtended {
 	ctx := storage.GetReadOnlyContext()
 	nsKey := namespaceKey(ns)
@@ -499,6 +609,7 @@ func ListNamespaceSubjects(ns string) iterator.Iterator {
 	return storage.Find(ctx, namespaceSubjectPrefix(ns), storage.KeysOnly|storage.RemovePrefix)
 }
 
+// CreateGroup creates a new group within the specified namespace.
 func CreateGroup(ns, group string) int {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -533,6 +644,7 @@ func CreateGroup(ns, group string) int {
 	return groupCountID
 }
 
+// GetGroup retrieves the group with the specified ID within the given namespace.
 func GetGroup(ns string, groupID int) Group {
 	ctx := storage.GetReadOnlyContext()
 	gKey := groupKey(ns, groupID)
@@ -544,6 +656,7 @@ func GetGroup(ns string, groupID int) Group {
 	return std.Deserialize(data).(Group)
 }
 
+// GetGroupExtended retrieves extended information about the group, including the count of subjects in the group.
 func GetGroupExtended(ns string, groupID int) GroupExtended {
 	ctx := storage.GetReadOnlyContext()
 	gKey := groupKey(ns, groupID)
@@ -569,6 +682,7 @@ func GetGroupExtended(ns string, groupID int) GroupExtended {
 	return grExtended
 }
 
+// GetGroupIDByName retrieves the ID of the group with the specified name within the given namespace.
 func GetGroupIDByName(ns, name string) int {
 	if name == "" {
 		panic("invalid name")
@@ -585,6 +699,7 @@ func GetGroupIDByName(ns, name string) int {
 	return std.Deserialize(groupIDRaw).(int)
 }
 
+// GetGroupByName retrieves the group with the specified name within the given namespace.
 func GetGroupByName(ns, name string) Group {
 	groupID := GetGroupIDByName(ns, name)
 	gKey := groupKey(ns, groupID)
@@ -598,6 +713,7 @@ func GetGroupByName(ns, name string) Group {
 	return std.Deserialize(data).(Group)
 }
 
+// SetGroupName sets a new name for the group with the specified ID within the given namespace.
 func SetGroupName(ns string, groupID int, name string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -618,6 +734,7 @@ func SetGroupName(ns string, groupID int, name string) {
 	runtime.Notify("SetGroupName", ns, groupID, name)
 }
 
+// SetGroupKV sets a key-value pair for the group with the specified ID within the given namespace.
 func SetGroupKV(ns string, groupID int, key, val string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -638,6 +755,7 @@ func SetGroupKV(ns string, groupID int, key, val string) {
 	runtime.Notify("SetGroupKV", ns, groupID, key, val)
 }
 
+// DeleteGroupKV deletes a key-value pair from the group with the specified ID within the given namespace.
 func DeleteGroupKV(ns string, groupID int, key string) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -660,6 +778,7 @@ func ListGroups(ns string) iterator.Iterator {
 	return storage.Find(ctx, groupPrefix(ns), storage.ValuesOnly|storage.DeserializeValues)
 }
 
+// AddSubjectToGroup adds a subject to a group with the specified ID.
 func AddSubjectToGroup(addr interop.Hash160, groupID int) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -692,6 +811,7 @@ func AddSubjectToGroup(addr interop.Hash160, groupID int) {
 	runtime.Notify("AddSubjectToGroup", addr, subject.Namespace, groupID)
 }
 
+// RemoveSubjectFromGroup removes a subject from a group with the specified ID.
 func RemoveSubjectFromGroup(addr interop.Hash160, groupID int) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -730,6 +850,7 @@ func ListGroupSubjects(ns string, groupID int) iterator.Iterator {
 	return storage.Find(ctx, groupSubjectPrefix(ns, groupID), storage.KeysOnly|storage.RemovePrefix)
 }
 
+// DeleteGroup deletes the group with the specified ID within the given namespace.
 func DeleteGroup(ns string, groupID int) {
 	ctx := storage.GetContext()
 	checkContractOwner(ctx)
@@ -944,3 +1065,7 @@ func idToBytes(itemID int) []byte {
 	zeros := make([]byte, 8-ln)
 	return append(b, zeros...)
 }
+
+func addressKey(address []byte) []byte {
+	return append([]byte{addressPrefix}, address...)
+}

go.mod

@@ -1,14 +1,14 @@
 module git.frostfs.info/TrueCloudLab/frostfs-contract
 
-go 1.20
+go 1.22
 
 require (
-	github.com/google/uuid v1.3.1
+	github.com/google/uuid v1.6.0
 	github.com/mr-tron/base58 v1.2.0
-	github.com/nspcc-dev/neo-go v0.105.0
+	github.com/nspcc-dev/neo-go v0.106.3
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231127165613-b35f351f0ba0
+	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20240727093519-1a48f1ce43ec
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/testify v1.9.0
-	go.uber.org/zap v1.26.0
+	go.uber.org/zap v1.27.0
 )
 
 require (
@@ -17,46 +17,40 @@ require (
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/consensys/bavard v0.1.13 // indirect
 	github.com/consensys/gnark-crypto v0.12.2-0.20231013160410-1f65e75b6dfb // indirect
-	github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.4 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.1 // indirect
-	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/gorilla/websocket v1.5.1 // indirect
-	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
-	github.com/hashicorp/golang-lru v0.6.0 // indirect
+	github.com/holiman/uint256 v1.2.4 // indirect
-	github.com/holiman/uint256 v1.2.0 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mmcloughlin/addchain v0.4.0 // indirect
-	github.com/nspcc-dev/dbft v0.0.0-20230515113611-25db6ba61d5c // indirect
+	github.com/nspcc-dev/dbft v0.2.0 // indirect
-	github.com/nspcc-dev/go-ordered-json v0.0.0-20231123160306-3374ff1e7a3c // indirect
+	github.com/nspcc-dev/go-ordered-json v0.0.0-20240301084351-0246b013f8b2 // indirect
-	github.com/nspcc-dev/neofs-crypto v0.4.0 // indirect
+	github.com/nspcc-dev/rfc6979 v0.2.1 // indirect
-	github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
 	github.com/pierrec/lz4 v2.6.1+incompatible // indirect
-	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_golang v1.13.0 // indirect
+	github.com/prometheus/client_golang v1.19.0 // indirect
-	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
-	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/common v0.48.0 // indirect
-	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
 	github.com/rogpeppe/go-internal v1.11.0 // indirect
-	github.com/russross/blackfriday/v2 v2.0.1 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954 // indirect
-	github.com/twmb/murmur3 v1.1.5 // indirect
+	github.com/twmb/murmur3 v1.1.8 // indirect
-	github.com/urfave/cli v1.22.5 // indirect
+	github.com/urfave/cli/v2 v2.27.2 // indirect
-	go.etcd.io/bbolt v1.3.8 // indirect
+	github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 // indirect
-	go.uber.org/multierr v1.10.0 // indirect
+	go.etcd.io/bbolt v1.3.9 // indirect
-	golang.org/x/crypto v0.17.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/mod v0.12.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
-	golang.org/x/sync v0.3.0 // indirect
+	golang.org/x/mod v0.16.0 // indirect
-	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
-	golang.org/x/term v0.15.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/term v0.18.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
-	golang.org/x/tools v0.12.1-0.20230815132531-74c255bcf846 // indirect
+	golang.org/x/tools v0.19.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20231127180814-3a041ad873d4 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
-	google.golang.org/grpc v1.59.0 // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	rsc.io/tmplfunc v0.0.3 // indirect
 )

go.sum

@@ -1,214 +1,85 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
-cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
-cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
-cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
-cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
-cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
-cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
-cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
-cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
-cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
-cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
-cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
-cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
-cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
-cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20221202181307-76fa05c21b12 h1:npHgfD4Tl2WJS3AJaMUi5ynGDPUBfkg3U3fCzDyXZ+4=
-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20221202181307-76fa05c21b12/go.mod h1:pSwJ0fSY5KhvocuWSx4fz3BA8OrA1bQn+K1Eli3BRwM=
-github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bits-and-blooms/bitset v1.8.0 h1:FD+XqgOZDUxxZ8hzoBFuV9+cGWY9CslN6d5MS5JVb4c=
 github.com/bits-and-blooms/bitset v1.8.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/readline v1.5.1 h1:upd/6fQk4src78LMRzh5vItIt361/o4uq553V8B5sGI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/chzyer/readline v1.5.1/go.mod h1:Eh+b79XXUwfKfcPLepksvw2tcLE/Ct21YObkaSkeBlk=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/consensys/bavard v0.1.13 h1:oLhMLOFGTLdlda/kma4VOJazblc7IM5y5QPd2A/YjhQ=
 github.com/consensys/bavard v0.1.13/go.mod h1:9ItSMtA/dXMAiL7BG6bqW2m3NdSEObYWoH223nGHukI=
 github.com/consensys/gnark-crypto v0.12.2-0.20231013160410-1f65e75b6dfb h1:f0BMgIjhZy4lSRHCXFbQst85f5agZAjtDMixQqBWNpc=
 github.com/consensys/gnark-crypto v0.12.2-0.20231013160410-1f65e75b6dfb/go.mod h1:v2Gy7L/4ZRosZ7Ivs+9SfUDr0f5UlG+EM5t7MPHiLuY=
-github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
+github.com/cpuguy83/go-md2man/v2 v2.0.4 h1:wfIWP927BUkWJb2NmU/kNDYIBTh/ziUX91+lVfRxZq4=
-github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 h1:8UrgZ3GkP4i/CLijOJx79Yu+etlyjdBU4sfcs2WYQMs=
-github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 h1:YLtO71vCjJRCBcrPMtQ9nqBsqpA1m5sE92cU+pd5Mcc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0/go.mod h1:v57UDF4pDQJcEfFUCRop3lJL149eHGSe9Jvczhzjo/0=
-github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1/go.mod h1:hyedUtir6IdtD/7lIxGeCxkaw7y45JueMRL4DIyJDKs=
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nns/README.md

@@ -0,0 +1,75 @@
+# NNS 
+NNS - Neo Name Service is a service that allows manage a domain name as a digital asset (NFT). It has an interface similar to `DNS` but has significant differences in its internal structure.
+
+## Entities:
+
+- Domain
+- Record
+- Owner
+- Committee
+
+### Domain
+
+Domain is string that satisfies the following requirements:
+- Length from 2 to 255 characters.
+- Root domain must start with a letter.
+- All other fragments must start and end with a letter or digit.
+
+Domain has owner, a registration period, and may optionally have records.
+
+A fee established by the committee is charged upon domain registration. After registration, the owner can manage this asset (add/delete records, transfer ownership to another owner) until the end of the domain registration period.
+
+### Record
+
+A record is a pair of values `<type, string>`.
+
+Supported record types:
+
+| Type  | Description                               |
+|-------|-------------------------------------------|
+| A     | Represents address record type            |
+| AAA   | Represents IPv6 address record type       |
+| TXT   | Represents text record type               |
+| CNAME | Represents canonical name record type     |
+| SOA   | Represents start of authority record type |
+
+### Owner
+
+An owner is a wallet that has the right to manage this NFT (domain).
+
+### Committee
+
+The committee makes new tokens (domains), sets, and charges a fee for issuance.
+
+## Globally Unique Domain Zone
+
+For more information, see [here](../docs/globally-unique-domain-zone.md).
+
+## NNS and Frostfsid
+
+You can register a TLD domain without a committee signature using Frostfsid. To do this, create a new wallet
+```
+neo-go wallet init -w newwallet/wallet.json
+```
+
+Get wallet address:
+```
+neo-go wallet dump-keys -w newwallet/wallet.json
+[subject-address]
+[subject-key]
+```
+
+Create a subject in `FrostfsID`:
+```
+frostfs-adm morph frostfsid create-subject --subject-key="[subject-key]"
+```
+
+Grant permissions to the wallet:
+```
+frostfs-adm morph nns give-privilege --subject-address="[subject-address]"
+```
+
+Register domain:
+```
+neo-go contract invokefunction [NNS-hash] register   "subdomain.domain"  hash160:[subject-address]   "email@frostfs.info"   10000   1000   1000   1000 -- [subject-address]:Global
+```

nns/config.yml

@@ -4,6 +4,32 @@ safemethods: ["balanceOf", "decimals", "symbol", "totalSupply", "tokensOf", "own
               "tokens", "properties", "roots", "getPrice", "isAvailable", "getRecords",
               "resolve", "version"]
 events:
+  - name: RegisterDomain
+    parameters:
+      - name: name
+        type: String
+  - name: AddRecord
+    parameters:
+      - name: name
+        type: String
+      - name: type
+        type: Integer
+  - name: DeleteRecord
+    parameters:
+      - name: name
+        type: String
+      - name: type
+        type: Integer
+  - name: DeleteRecords
+    parameters:
+      - name: name
+        type: String
+      - name: type
+        type: Integer
+  - name: DeleteDomain
+    parameters:
+      - name: name
+        type: String
   - name: Transfer
     parameters:
       - name: from

nns/doc.go

@@ -11,6 +11,7 @@
  | 0x20                                 | int        | set of roots                      |
  | 0x21 + tokenKey                      | ByteArray  | serialized NameState struct       |
  | 0x22 + tokenKey + Hash160(tokenName) | Hash160    | container contract hash           |
+ | 0x23 + tokenKey + Hash160(tokenName) | string     | global domain flag                |
 
 */
 

nns/frostfsid.go

@@ -0,0 +1,39 @@
+package nns
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/interop"
+	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+)
+
+const FrostfsIDNNSName = "frostfsid.frostfs"
+
+const (
+	FrostfsIDNNSTLDPermissionKey    = "nns-allow-register-tld"
+	FrostfsIDTLDRegistrationAllowed = "allow"
+)
+
+func checkFrostfsID(ctx storage.Context, addr interop.Hash160) bool {
+	if len(addr) == 0 {
+		return false
+	}
+
+	frostfsIDAddress := getRecordsByType(ctx, []byte(tokenIDFromName(FrostfsIDNNSName)), FrostfsIDNNSName, TXT)
+	if len(frostfsIDAddress) < 2 {
+		return false
+	}
+
+	decodedBytes := std.Base58Decode([]byte(frostfsIDAddress[1]))
+
+	if len(decodedBytes) < 21 || management.GetContract(decodedBytes[1:21]) == nil {
+		return false
+	}
+
+	if res := contract.Call(decodedBytes[1:21], "getSubjectKV", contract.ReadOnly, addr, FrostfsIDNNSTLDPermissionKey).(string); res == FrostfsIDTLDRegistrationAllowed {
+		return true
+	}
+
+	return false
+}

nns/nns.yml

@@ -1,32 +0,0 @@
-name: "NameService"
-supportedstandards: ["NEP-11"]
-safemethods:
-  - "balanceOf"
-  - "decimals"
-  - "getAllRecords"
-  - "getPrice"
-  - "getRecord"
-  - "isAvailable"
-  - "ownerOf"
-  - "properties"
-  - "symbol"
-  - "totalSupply"
-  - "tokensOf"
-  - "tokens"
-  - "resolve"
-  - "roots"
-events:
-  - name: Transfer
-    parameters:
-      - name: from
-        type: Hash160
-      - name: to
-        type: Hash160
-      - name: amount
-        type: Integer
-      - name: tokenId
-        type: ByteArray
-permissions:
-  - hash: fffdc93764dbaddd97c48f252a53ea4643faa3fd
-    methods: ["update"]
-  - methods: ["onNEP11Payment"]

nns/nns_contract.go

@@ -41,6 +41,14 @@ const (
 	// prefixRecord contains map from (token key + hash160(token name) + record type)
 	// to record.
 	prefixRecord byte = 0x22
+	//prefixGlobalDomain contains a flag indicating that this domain was created using GlobalDomain.
+	//This is necessary to distinguish it from regular CNAME records.
+	prefixGlobalDomain byte = 0x23
+	// prefixCountSubDomains contains information about the number of domains in the zone.
+	// If it is nil, it will definitely be calculated on the first removal.
+	prefixCountSubDomains byte = 0x24
+	// prefixAutoCreated contains a flag indicating whether the TLD domain was created automatically.
+	prefixAutoCreated = 0x25
 )
 
 // Values constraints.
@@ -65,6 +73,14 @@ const (
 	defaultRegisterPrice = 10_0000_0000
 	// millisecondsInYear is amount of milliseconds per year.
 	millisecondsInYear = int64(365 * 24 * 3600 * 1000)
+	// errInvalidDomainName is an error message for invalid domain name format.
+	errInvalidDomainName = "invalid domain name format"
+)
+
+const (
+	// Cnametgt is a special TXT record ensuring all created subdomains point to the global domain - the value of this variable.
+	//It is guaranteed that two domains cannot point to the same global domain.
+	Cnametgt = "cnametgt"
 )
 
 // RecordState is a type that registered entities are saved to.
@@ -220,75 +236,133 @@ func GetPrice() int {
 // IsAvailable checks whether the provided domain name is available.
 func IsAvailable(name string) bool {
 	fragments := splitAndCheck(name)
-	if fragments == nil {
-		panic("invalid domain name format")
-	}
 	ctx := storage.GetReadOnlyContext()
 	l := len(fragments)
 	if storage.Get(ctx, append([]byte{prefixRoot}, []byte(fragments[l-1])...)) == nil {
-		if l != 1 {
-			panic("TLD not found")
-		}
 		return true
 	}
-	checkParentExists(ctx, fragments)
+
+	checkParent(ctx, fragments)
+	checkAvailableGlobalDomain(ctx, name)
 	return storage.Get(ctx, append([]byte{prefixName}, getTokenKey([]byte(name))...)) == nil
 }
 
-// checkParentExists panics if any domain from fragments doesn't exist or is expired.
+// checkAvailableGlobalDomain - triggers a panic if the global domain name is occupied.
-func checkParentExists(ctx storage.Context, fragments []string) {
+func checkAvailableGlobalDomain(ctx storage.Context, domain string) {
-	if dom := parentExpired(ctx, fragments); dom != "" {
+	globalDomain := getGlobalDomain(ctx, domain)
-		panic("domain does not exist or is expired: " + dom)
+	if globalDomain == "" {
+		return
+	}
+
+	nsBytes := storage.Get(ctx, append([]byte{prefixName}, getTokenKey([]byte(globalDomain))...))
+	if nsBytes != nil {
+		panic("global domain is already taken: " + globalDomain + ". Domain: " + domain)
 	}
 }
 
-// parentExpired returns domain from fragments that doesn't exist or is expired.
+// getGlobalDomain returns the global domain.
-// first denotes the deepest subdomain to check.
+func getGlobalDomain(ctx storage.Context, domain string) string {
-func parentExpired(ctx storage.Context, fragments []string) string {
+	index := std.MemorySearch([]byte(domain), []byte("."))
+
+	if index == -1 {
+		return ""
+	}
+
+	name := domain[index+1:]
+	if name == "" {
+		return ""
+	}
+
+	return extractCnametgt(ctx, name, domain)
+}
+
+// extractCnametgt returns the value of the Cnametgt TXT record.
+func extractCnametgt(ctx storage.Context, name, domain string) string {
+	fragments := splitAndCheck(domain)
+
+	tokenID := []byte(tokenIDFromName(name))
+	records := getRecordsByType(ctx, tokenID, name, TXT)
+
+	if records == nil {
+		return ""
+	}
+
+	globalDomain := ""
+	for _, name := range records {
+		fragments := std.StringSplit(name, "=")
+		if len(fragments) != 2 {
+			continue
+		}
+
+		if fragments[0] == Cnametgt {
+			globalDomain = fragments[1]
+			break
+		}
+	}
+
+	if globalDomain == "" {
+		return ""
+	}
+	return fragments[0] + "." + globalDomain
+}
+
+// checkParent returns parent domain or empty string if domain not found.
+func checkParent(ctx storage.Context, fragments []string) string {
 	now := int64(runtime.GetTime())
 	last := len(fragments) - 1
 	name := fragments[last]
+	parent := ""
 	for i := last; i > 0; i-- {
 		if i != last {
 			name = fragments[i] + "." + name
 		}
 		nsBytes := storage.Get(ctx, append([]byte{prefixName}, getTokenKey([]byte(name))...))
 		if nsBytes == nil {
-			return name
+			continue
 		}
 		ns := std.Deserialize(nsBytes.([]byte)).(NameState)
 		if now >= ns.Expiration {
-			return name
+			panic("domain expired: " + name)
 		}
+		parent = name
 	}
-	return ""
+	return parent
 }
 
 // Register registers a new domain with the specified owner and name if it's available.
 func Register(name string, owner interop.Hash160, email string, refresh, retry, expire, ttl int) bool {
-	fragments := splitAndCheck(name)
-	if fragments == nil {
-		panic("invalid domain name format")
-	}
-
-	l := len(fragments)
-	tldKey := append([]byte{prefixRoot}, []byte(fragments[l-1])...)
 	ctx := storage.GetContext()
+	return register(ctx, name, owner, email, refresh, retry, expire, ttl)
+}
+
+// Register registers a new domain with the specified owner and name if it's available.
+func register(ctx storage.Context, name string, owner interop.Hash160, email string, refresh, retry, expire, ttl int) bool {
+	fragments := splitAndCheck(name)
+	countZone := len(fragments)
+	rootZone := []byte(fragments[countZone-1])
+	tldKey := append([]byte{prefixRoot}, rootZone...)
+
 	tldBytes := storage.Get(ctx, tldKey)
-	if l == 1 {
+	if countZone == 1 {
-		checkCommittee()
+		checkCommitteeAndFrostfsID(ctx, owner)
 		if tldBytes != nil {
 			panic("TLD already exists")
 		}
 		storage.Put(ctx, tldKey, 0)
 	} else {
-		if tldBytes == nil {
+		parent := checkParent(ctx, fragments)
-			panic("TLD not found")
+		if parent == "" {
-		}
+			parent = fragments[len(fragments)-1]
-		checkParentExists(ctx, fragments)
 
-		parentKey := getTokenKey([]byte(name[len(fragments[0])+1:]))
+			storage.Put(ctx, append([]byte{prefixAutoCreated}, rootZone...), true)
+			register(ctx, parent, owner, email, refresh, retry, expire, ttl)
+		}
+
+		parentKey := getTokenKey([]byte(parent))
 		nsBytes := storage.Get(ctx, append([]byte{prefixName}, parentKey...))
+		if nsBytes == nil {
+			panic("parent does not exist:" + parent)
+		}
 		ns := std.Deserialize(nsBytes.([]byte)).(NameState)
 		ns.checkAdmin()
 
@@ -330,18 +404,20 @@ func Register(name string, owner interop.Hash160, email string, refresh, retry,
 		// NNS expiration is in milliseconds
 		Expiration: int64(runtime.GetTime() + expire*1000),
 	}
+	checkAvailableGlobalDomain(ctx, name)
+
+	updateSubdDomainCounter(ctx, rootZone, countZone)
 	putNameStateWithKey(ctx, tokenKey, ns)
 	putSoaRecord(ctx, name, email, refresh, retry, expire, ttl)
 	updateBalance(ctx, []byte(name), owner, +1)
 	postTransfer(oldOwner, owner, []byte(name), nil)
+	runtime.Notify("RegisterDomain", name)
 	return true
 }
 
 // Renew increases domain expiration date.
 func Renew(name string) int64 {
-	if len(name) > maxDomainNameLength {
+	checkDomainNameLength(name)
-		panic("invalid domain name format")
-	}
 	runtime.BurnGas(GetPrice())
 	ctx := storage.GetContext()
 	ns := getNameState(ctx, []byte(name))
@@ -353,9 +429,7 @@ func Renew(name string) int64 {
 
 // UpdateSOA updates soa record.
 func UpdateSOA(name, email string, refresh, retry, expire, ttl int) {
-	if len(name) > maxDomainNameLength {
+	checkDomainNameLength(name)
-		panic("invalid domain name format")
-	}
 	ctx := storage.GetContext()
 	ns := getNameState(ctx, []byte(name))
 	ns.checkAdmin()
@@ -364,9 +438,7 @@ func UpdateSOA(name, email string, refresh, retry, expire, ttl int) {
 
 // SetAdmin updates domain admin.
 func SetAdmin(name string, admin interop.Hash160) {
-	if len(name) > maxDomainNameLength {
+	checkDomainNameLength(name)
-		panic("invalid domain name format")
-	}
 	if admin != nil && !runtime.CheckWitness(admin) {
 		panic("not witnessed by admin")
 	}
@@ -429,13 +501,26 @@ func GetRecords(name string, typ RecordType) []string {
 
 // DeleteRecords removes domain records with the specified type.
 func DeleteRecords(name string, typ RecordType) {
+	ctx := storage.GetContext()
+	deleteRecords(ctx, name, typ)
+}
+
+// DeleteRecords removes domain records with the specified type.
+func deleteRecords(ctx storage.Context, name string, typ RecordType) {
 	if typ == SOA {
 		panic("you cannot delete soa record")
 	}
 	tokenID := []byte(tokenIDFromName(name))
-	ctx := storage.GetContext()
 	ns := getNameState(ctx, tokenID)
 	ns.checkAdmin()
+
+	globalDomainStorage := append([]byte{prefixGlobalDomain}, getTokenKey([]byte(name))...)
+	globalDomainRaw := storage.Get(ctx, globalDomainStorage)
+	globalDomain := globalDomainRaw.(string)
+	if globalDomainRaw != nil && globalDomain != "" {
+		deleteDomain(ctx, globalDomain)
+	}
+
 	recordsKey := getRecordsKeyByType(tokenID, name, typ)
 	records := storage.Find(ctx, recordsKey, storage.KeysOnly)
 	for iterator.Next(records) {
@@ -443,6 +528,126 @@ func DeleteRecords(name string, typ RecordType) {
 		storage.Delete(ctx, r)
 	}
 	updateSoaSerial(ctx, tokenID)
+	runtime.Notify("DeleteRecords", name, typ)
+}
+
+// DeleteRecord delete a record of the specified type by data in the provided domain.
+// Returns false if the record was not found.
+func DeleteRecord(name string, typ RecordType, data string) bool {
+	tokenID := []byte(tokenIDFromName(name))
+	if !checkBaseRecords(typ, data) {
+		panic("invalid record data")
+	}
+	ctx := storage.GetContext()
+	ns := getNameState(ctx, tokenID)
+	ns.checkAdmin()
+	return deleteRecord(ctx, tokenID, name, typ, data)
+}
+
+func deleteRecord(ctx storage.Context, tokenId []byte, name string, typ RecordType, data string) bool {
+	recordsKey := getRecordsKeyByType(tokenId, name, typ)
+
+	var previousKey any
+	it := storage.Find(ctx, recordsKey, storage.KeysOnly)
+	for iterator.Next(it) {
+		key := iterator.Value(it).([]byte)
+		ss := storage.Get(ctx, key).([]byte)
+
+		ns := std.Deserialize(ss).(RecordState)
+		if ns.Name == name && ns.Type == typ && ns.Data == data {
+			previousKey = key
+			continue
+		}
+
+		if previousKey != nil {
+			data := storage.Get(ctx, key)
+			storage.Put(ctx, previousKey, data)
+			previousKey = key
+		}
+	}
+
+	if previousKey == nil {
+		return false
+	}
+
+	storage.Delete(ctx, previousKey)
+	runtime.Notify("DeleteRecord", name, typ)
+	return true
+}
+
+// DeleteDomain deletes the domain with the given name.
+func DeleteDomain(name string) {
+	ctx := storage.GetContext()
+	deleteDomain(ctx, name)
+}
+
+func countSubdomains(name string) int {
+	countSubDomains := 0
+	it := Tokens()
+	for iterator.Next(it) {
+		domain := iterator.Value(it)
+		if std.MemorySearch([]byte(domain.(string)), []byte(name)) > 0 {
+			countSubDomains = countSubDomains + 1
+		}
+	}
+	return countSubDomains
+}
+
+func deleteDomain(ctx storage.Context, name string) {
+	fragments := splitAndCheck(name)
+	parent := []byte(fragments[len(fragments)-1])
+	countSubDomainsKey := append([]byte{prefixCountSubDomains}, parent...)
+	autoCreatedPrefix := append([]byte{prefixAutoCreated}, parent...)
+
+	nsKey := append([]byte{prefixName}, getTokenKey([]byte(name))...)
+	nsRaw := storage.Get(ctx, nsKey)
+	if nsRaw == nil {
+		panic("domain not found")
+	}
+
+	ns := std.Deserialize(nsRaw.([]byte)).(NameState)
+	ns.checkAdmin()
+
+	countSubDomain := 0
+	countSubDomainRaw := storage.Get(ctx, countSubDomainsKey)
+	if countSubDomainRaw != nil {
+		countSubDomain = common.FromFixedWidth64(countSubDomainRaw.([]byte))
+	} else {
+		countSubDomain = countSubdomains(fragments[len(fragments)-1])
+	}
+
+	if countSubDomain > 1 && len(fragments) == 1 {
+		panic("can't delete TLD domain that has subdomains")
+	}
+
+	countSubDomain = countSubDomain - 1
+	storage.Put(ctx, countSubDomainsKey, common.ToFixedWidth64(countSubDomain))
+
+	globalNSKey := append([]byte{prefixGlobalDomain}, getTokenKey([]byte(name))...)
+	globalDomainRaw := storage.Get(ctx, globalNSKey)
+	globalDomain := globalDomainRaw.(string)
+	if globalDomainRaw != nil && globalDomain != "" {
+		deleteDomain(ctx, globalDomain)
+	}
+
+	deleteRecords(ctx, name, CNAME)
+	deleteRecords(ctx, name, TXT)
+	deleteRecords(ctx, name, A)
+	deleteRecords(ctx, name, AAAA)
+	storage.Delete(ctx, nsKey)
+	storage.Delete(ctx, append([]byte{prefixRoot}, []byte(name)...))
+
+	isAutoCreated := storage.Get(ctx, autoCreatedPrefix)
+	if countSubDomain == 1 && isAutoCreated != nil && isAutoCreated.(bool) {
+		deleteDomain(ctx, fragments[len(fragments)-1])
+	}
+
+	if len(fragments) == 1 {
+		storage.Delete(ctx, countSubDomainsKey)
+		storage.Delete(ctx, autoCreatedPrefix)
+	}
+
+	runtime.Notify("DeleteDomain", name)
 }
 
 // Resolve resolves given name (not more then three redirects are allowed).
@@ -515,7 +720,7 @@ func getNameState(ctx storage.Context, tokenID []byte) NameState {
 	tokenKey := getTokenKey(tokenID)
 	ns := getNameStateWithKey(ctx, tokenKey)
 	fragments := std.StringSplit(string(tokenID), ".")
-	checkParentExists(ctx, fragments)
+	checkParent(ctx, fragments)
 	return ns
 }
 
@@ -585,6 +790,33 @@ func addRecord(ctx storage.Context, tokenId []byte, name string, typ RecordType,
 		}
 	}
 
+	globalDomainKey := append([]byte{prefixGlobalDomain}, getTokenKey([]byte(name))...)
+	globalDomainStorage := storage.Get(ctx, globalDomainKey)
+	globalDomain := getGlobalDomain(ctx, name)
+
+	if globalDomainStorage == nil && typ == TXT {
+		if globalDomain != "" {
+			checkAvailableGlobalDomain(ctx, name)
+			nsOriginal := getNameState(ctx, []byte(tokenIDFromName(name)))
+			ns := NameState{
+				Name:       globalDomain,
+				Owner:      nsOriginal.Owner,
+				Expiration: nsOriginal.Expiration,
+				Admin:      nsOriginal.Admin,
+			}
+
+			putNameStateWithKey(ctx, getTokenKey([]byte(globalDomain)), ns)
+			storage.Put(ctx, globalDomainKey, globalDomain)
+
+			var oldOwner interop.Hash160
+			updateBalance(ctx, []byte(name), nsOriginal.Owner, +1)
+			postTransfer(oldOwner, nsOriginal.Owner, []byte(name), nil)
+			putCnameRecord(ctx, globalDomain, name)
+		} else {
+			storage.Put(ctx, globalDomainKey, "")
+		}
+	}
+
 	if typ == CNAME && id != 0 {
 		panic("you shouldn't have more than one CNAME record")
 	}
@@ -603,6 +835,7 @@ func storeRecord(ctx storage.Context, recordKey []byte, name string, typ RecordT
 	}
 	recBytes := std.Serialize(rs)
 	storage.Put(ctx, recordKey, recBytes)
+	runtime.Notify("AddRecord", name, typ)
 }
 
 // putSoaRecord stores soa domain record.
@@ -623,6 +856,24 @@ func putSoaRecord(ctx storage.Context, name, email string, refresh, retry, expir
 	}
 	recBytes := std.Serialize(rs)
 	storage.Put(ctx, recordKey, recBytes)
+	runtime.Notify("AddRecord", name, SOA)
+}
+
+// putCnameRecord stores CNAME domain record.
+func putCnameRecord(ctx storage.Context, name, data string) {
+	var id byte
+	tokenId := []byte(tokenIDFromName(name))
+	recordKey := getIdRecordKey(tokenId, name, CNAME, id)
+
+	rs := RecordState{
+		Name: name,
+		Type: CNAME,
+		ID:   id,
+		Data: data,
+	}
+	recBytes := std.Serialize(rs)
+	storage.Put(ctx, recordKey, recBytes)
+	runtime.Notify("AddRecord", name, CNAME)
 }
 
 // updateSoaSerial stores soa domain record.
@@ -632,7 +883,7 @@ func updateSoaSerial(ctx storage.Context, tokenId []byte) {
 
 	recBytes := storage.Get(ctx, recordKey)
 	if recBytes == nil {
-		panic("not found soa record")
+		return
 	}
 	rec := std.Deserialize(recBytes.([]byte)).(RecordState)
 
@@ -673,6 +924,14 @@ func isValid(address interop.Hash160) bool {
 	return address != nil && len(address) == interop.Hash160Len
 }
 
+// checkCommitteeAndFrostfsID panics if the script container is not signed by the committee.
+// or if the owner does not have permission in FrostfsID.
+func checkCommitteeAndFrostfsID(ctx storage.Context, owner interop.Hash160) {
+	if !checkFrostfsID(ctx, owner) {
+		checkCommittee()
+	}
+}
+
 // checkCommittee panics if the script container is not signed by the committee.
 func checkCommittee() {
 	committee := neo.GetCommittee()
@@ -722,20 +981,28 @@ func isAlNum(c uint8) bool {
 
 // splitAndCheck splits domain name into parts and validates it.
 func splitAndCheck(name string) []string {
-	l := len(name)
+	checkDomainNameLength(name)
-	if l < minDomainNameLength || maxDomainNameLength < l {
-		return nil
-	}
 	fragments := std.StringSplit(name, ".")
-	l = len(fragments)
+	l := len(fragments)
 	for i := 0; i < l; i++ {
 		if !checkFragment(fragments[i], i == l-1) {
-			return nil
+			panic(errInvalidDomainName + " '" + name + "': invalid fragment '" + fragments[i] + "'")
 		}
 	}
 	return fragments
 }
 
+// checkDomainNameLength panics if domain name length is out of boundaries.
+func checkDomainNameLength(name string) {
+	l := len(name)
+	if l > maxDomainNameLength {
+		panic(errInvalidDomainName + " '" + name + "': domain name too long: got = " + std.Itoa(l, 10) + ", max = " + std.Itoa(maxDomainNameLength, 10))
+	}
+	if l < minDomainNameLength {
+		panic(errInvalidDomainName + " '" + name + "': domain name too short: got = " + std.Itoa(l, 10) + ", min = " + std.Itoa(minDomainNameLength, 10))
+	}
+}
+
 // checkIPv4 checks record on IPv4 compliance.
 func checkIPv4(data string) bool {
 	l := len(data)
@@ -849,9 +1116,6 @@ func checkIPv6(data string) bool {
 // tokenIDFromName returns token ID (domain.root) from the provided name.
 func tokenIDFromName(name string) string {
 	fragments := splitAndCheck(name)
-	if fragments == nil {
-		panic("invalid domain name format")
-	}
 
 	ctx := storage.GetReadOnlyContext()
 	sum := 0
@@ -910,3 +1174,16 @@ func getAllRecords(ctx storage.Context, name string) iterator.Iterator {
 	recordsKey := getRecordsKey(tokenID, name)
 	return storage.Find(ctx, recordsKey, storage.ValuesOnly|storage.DeserializeValues)
 }
+
+func updateSubdDomainCounter(ctx storage.Context, rootZone []byte, countZone int) {
+	countSubDomain := 0
+	delInfoRaw := storage.Get(ctx, append([]byte{prefixCountSubDomains}, rootZone...))
+	if delInfoRaw != nil {
+		countSubDomain = common.FromFixedWidth64(delInfoRaw.([]byte))
+	}
+
+	if delInfoRaw != nil || countZone == 1 {
+		countSubDomain = countSubDomain + 1
+		storage.Put(ctx, append([]byte{prefixCountSubDomains}, rootZone...), common.ToFixedWidth64(countSubDomain))
+	}
+}

policy/config.yml

@@ -7,5 +7,6 @@ safemethods:
   - "getChain"
   - "listChainsByPrefix"
   - "listTargets"
+  - "listChainNames"
   - "iteratorChainsByPrefix"
   - "version"

policy/policy_contract.go

@@ -256,3 +256,11 @@ func ListTargets(entity Kind) iterator.Iterator {
 	mKey := mapKey(entity, []byte{})
 	return storage.Find(ctx, mKey, storage.KeysOnly|storage.RemovePrefix)
 }
+
+// ListChainNames iterates over chain names for specific target.
+func ListChainNames(entity Kind, entityName string) iterator.Iterator {
+	ctx := storage.GetReadOnlyContext()
+	id, _ := mapToNumeric(ctx, entity, []byte(entityName))
+	keyPrefix := storageKey(entity, id, []byte{})
+	return storage.Find(ctx, keyPrefix, storage.KeysOnly|storage.RemovePrefix)
+}

rpcclient/frostfsid/client.go

@@ -222,6 +222,11 @@ func (c *ContractReader) GetSubjectExtended(addr util.Uint160) ([]stackitem.Item
 	return unwrap.Array(c.invoker.Call(c.hash, "getSubjectExtended", addr))
 }
 
+// GetSubjectKV invokes `getSubjectKV` method of contract.
+func (c *ContractReader) GetSubjectKV(addr util.Uint160, name string) (string, error) {
+	return unwrap.UTF8String(c.invoker.Call(c.hash, "getSubjectKV", addr, name))
+}
+
 // GetSubjectKeyByName invokes `getSubjectKeyByName` method of contract.
 func (c *ContractReader) GetSubjectKeyByName(ns string, name string) (*keys.PublicKey, error) {
 	return unwrap.PublicKey(c.invoker.Call(c.hash, "getSubjectKeyByName", ns, name))

rpcclient/nns/client.go

@@ -4,6 +4,8 @@
 package nameservice
 
 import (
+	"errors"
+	"fmt"
 	"github.com/google/uuid"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
@@ -13,8 +15,37 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 	"math/big"
+	"unicode/utf8"
 )
 
+// RegisterDomainEvent represents "RegisterDomain" event emitted by the contract.
+type RegisterDomainEvent struct {
+	Name string
+}
+
+// AddRecordEvent represents "AddRecord" event emitted by the contract.
+type AddRecordEvent struct {
+	Name string
+	Type *big.Int
+}
+
+// DeleteRecordEvent represents "DeleteRecord" event emitted by the contract.
+type DeleteRecordEvent struct {
+	Name string
+	Type *big.Int
+}
+
+// DeleteRecordsEvent represents "DeleteRecords" event emitted by the contract.
+type DeleteRecordsEvent struct {
+	Name string
+	Type *big.Int
+}
+
+// DeleteDomainEvent represents "DeleteDomain" event emitted by the contract.
+type DeleteDomainEvent struct {
+	Name string
+}
+
 // Invoker is used by ContractReader to call various safe methods.
 type Invoker interface {
 	nep11.Invoker
@@ -121,6 +152,66 @@ func (c *Contract) AddRecordUnsigned(name string, typ *big.Int, data string) (*t
 	return c.actor.MakeUnsignedCall(c.hash, "addRecord", nil, name, typ, data)
 }
 
+// DeleteDomain creates a transaction invoking `deleteDomain` method of the contract.
+// This transaction is signed and immediately sent to the network.
+// The values returned are its hash, ValidUntilBlock value and error if any.
+func (c *Contract) DeleteDomain(name string) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "deleteDomain", name)
+}
+
+// DeleteDomainTransaction creates a transaction invoking `deleteDomain` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) DeleteDomainTransaction(name string) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "deleteDomain", name)
+}
+
+// DeleteDomainUnsigned creates a transaction invoking `deleteDomain` method of the contract.
+// This transaction is not signed, it's simply returned to the caller.
+// Any fields of it that do not affect fees can be changed (ValidUntilBlock,
+// Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
+func (c *Contract) DeleteDomainUnsigned(name string) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "deleteDomain", nil, name)
+}
+
+func (c *Contract) scriptForDeleteRecord(name string, typ *big.Int, data string) ([]byte, error) {
+	return smartcontract.CreateCallWithAssertScript(c.hash, "deleteRecord", name, typ, data)
+}
+
+// DeleteRecord creates a transaction invoking `deleteRecord` method of the contract.
+// This transaction is signed and immediately sent to the network.
+// The values returned are its hash, ValidUntilBlock value and error if any.
+func (c *Contract) DeleteRecord(name string, typ *big.Int, data string) (util.Uint256, uint32, error) {
+	script, err := c.scriptForDeleteRecord(name, typ, data)
+	if err != nil {
+		return util.Uint256{}, 0, err
+	}
+	return c.actor.SendRun(script)
+}
+
+// DeleteRecordTransaction creates a transaction invoking `deleteRecord` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) DeleteRecordTransaction(name string, typ *big.Int, data string) (*transaction.Transaction, error) {
+	script, err := c.scriptForDeleteRecord(name, typ, data)
+	if err != nil {
+		return nil, err
+	}
+	return c.actor.MakeRun(script)
+}
+
+// DeleteRecordUnsigned creates a transaction invoking `deleteRecord` method of the contract.
+// This transaction is not signed, it's simply returned to the caller.
+// Any fields of it that do not affect fees can be changed (ValidUntilBlock,
+// Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
+func (c *Contract) DeleteRecordUnsigned(name string, typ *big.Int, data string) (*transaction.Transaction, error) {
+	script, err := c.scriptForDeleteRecord(name, typ, data)
+	if err != nil {
+		return nil, err
+	}
+	return c.actor.MakeUnsignedRun(script, nil)
+}
+
 // DeleteRecords creates a transaction invoking `deleteRecords` method of the contract.
 // This transaction is signed and immediately sent to the network.
 // The values returned are its hash, ValidUntilBlock value and error if any.
@@ -334,3 +425,326 @@ func (c *Contract) UpdateSOATransaction(name string, email string, refresh *big.
 func (c *Contract) UpdateSOAUnsigned(name string, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) (*transaction.Transaction, error) {
 	return c.actor.MakeUnsignedCall(c.hash, "updateSOA", nil, name, email, refresh, retry, expire, ttl)
 }
+
+// RegisterDomainEventsFromApplicationLog retrieves a set of all emitted events
+// with "RegisterDomain" name from the provided [result.ApplicationLog].
+func RegisterDomainEventsFromApplicationLog(log *result.ApplicationLog) ([]*RegisterDomainEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*RegisterDomainEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "RegisterDomain" {
+				continue
+			}
+			event := new(RegisterDomainEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize RegisterDomainEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to RegisterDomainEvent or
+// returns an error if it's not possible to do to so.
+func (e *RegisterDomainEvent) FromStackItem(item *stackitem.Array) error {
+	if item == nil {
+		return errors.New("nil item")
+	}
+	arr, ok := item.Value().([]stackitem.Item)
+	if !ok {
+		return errors.New("not an array")
+	}
+	if len(arr) != 1 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Name, err = func(item stackitem.Item) (string, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return "", err
+		}
+		if !utf8.Valid(b) {
+			return "", errors.New("not a UTF-8 string")
+		}
+		return string(b), nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Name: %w", err)
+	}
+
+	return nil
+}
+
+// AddRecordEventsFromApplicationLog retrieves a set of all emitted events
+// with "AddRecord" name from the provided [result.ApplicationLog].
+func AddRecordEventsFromApplicationLog(log *result.ApplicationLog) ([]*AddRecordEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*AddRecordEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "AddRecord" {
+				continue
+			}
+			event := new(AddRecordEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize AddRecordEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to AddRecordEvent or
+// returns an error if it's not possible to do to so.
+func (e *AddRecordEvent) FromStackItem(item *stackitem.Array) error {
+	if item == nil {
+		return errors.New("nil item")
+	}
+	arr, ok := item.Value().([]stackitem.Item)
+	if !ok {
+		return errors.New("not an array")
+	}
+	if len(arr) != 2 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Name, err = func(item stackitem.Item) (string, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return "", err
+		}
+		if !utf8.Valid(b) {
+			return "", errors.New("not a UTF-8 string")
+		}
+		return string(b), nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Name: %w", err)
+	}
+
+	index++
+	e.Type, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Type: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteRecordEventsFromApplicationLog retrieves a set of all emitted events
+// with "DeleteRecord" name from the provided [result.ApplicationLog].
+func DeleteRecordEventsFromApplicationLog(log *result.ApplicationLog) ([]*DeleteRecordEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*DeleteRecordEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "DeleteRecord" {
+				continue
+			}
+			event := new(DeleteRecordEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize DeleteRecordEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to DeleteRecordEvent or
+// returns an error if it's not possible to do to so.
+func (e *DeleteRecordEvent) FromStackItem(item *stackitem.Array) error {
+	if item == nil {
+		return errors.New("nil item")
+	}
+	arr, ok := item.Value().([]stackitem.Item)
+	if !ok {
+		return errors.New("not an array")
+	}
+	if len(arr) != 2 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Name, err = func(item stackitem.Item) (string, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return "", err
+		}
+		if !utf8.Valid(b) {
+			return "", errors.New("not a UTF-8 string")
+		}
+		return string(b), nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Name: %w", err)
+	}
+
+	index++
+	e.Type, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Type: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteRecordsEventsFromApplicationLog retrieves a set of all emitted events
+// with "DeleteRecords" name from the provided [result.ApplicationLog].
+func DeleteRecordsEventsFromApplicationLog(log *result.ApplicationLog) ([]*DeleteRecordsEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*DeleteRecordsEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "DeleteRecords" {
+				continue
+			}
+			event := new(DeleteRecordsEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize DeleteRecordsEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to DeleteRecordsEvent or
+// returns an error if it's not possible to do to so.
+func (e *DeleteRecordsEvent) FromStackItem(item *stackitem.Array) error {
+	if item == nil {
+		return errors.New("nil item")
+	}
+	arr, ok := item.Value().([]stackitem.Item)
+	if !ok {
+		return errors.New("not an array")
+	}
+	if len(arr) != 2 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Name, err = func(item stackitem.Item) (string, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return "", err
+		}
+		if !utf8.Valid(b) {
+			return "", errors.New("not a UTF-8 string")
+		}
+		return string(b), nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Name: %w", err)
+	}
+
+	index++
+	e.Type, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Type: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteDomainEventsFromApplicationLog retrieves a set of all emitted events
+// with "DeleteDomain" name from the provided [result.ApplicationLog].
+func DeleteDomainEventsFromApplicationLog(log *result.ApplicationLog) ([]*DeleteDomainEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*DeleteDomainEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "DeleteDomain" {
+				continue
+			}
+			event := new(DeleteDomainEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize DeleteDomainEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to DeleteDomainEvent or
+// returns an error if it's not possible to do to so.
+func (e *DeleteDomainEvent) FromStackItem(item *stackitem.Array) error {
+	if item == nil {
+		return errors.New("nil item")
+	}
+	arr, ok := item.Value().([]stackitem.Item)
+	if !ok {
+		return errors.New("not an array")
+	}
+	if len(arr) != 1 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Name, err = func(item stackitem.Item) (string, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return "", err
+		}
+		if !utf8.Valid(b) {
+			return "", errors.New("not a UTF-8 string")
+		}
+		return string(b), nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Name: %w", err)
+	}
+
+	return nil
+}

rpcclient/policy/client.go

@@ -80,6 +80,20 @@ func (c *ContractReader) IteratorChainsByPrefixExpanded(entity *big.Int, entityN
 	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "iteratorChainsByPrefix", _numOfIteratorItems, entity, entityName, prefix))
 }
 
+// ListChainNames invokes `listChainNames` method of contract.
+func (c *ContractReader) ListChainNames(entity *big.Int, entityName string) (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "listChainNames", entity, entityName))
+}
+
+// ListChainNamesExpanded is similar to ListChainNames (uses the same contract
+// method), but can be useful if the server used doesn't support sessions and
+// doesn't expand iterators. It creates a script that will get the specified
+// number of result items from the iterator right in the VM and return them to
+// you. It's only limited by VM stack and GAS available for RPC invocations.
+func (c *ContractReader) ListChainNamesExpanded(entity *big.Int, entityName string, _numOfIteratorItems int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "listChainNames", _numOfIteratorItems, entity, entityName))
+}
+
 // ListChains invokes `listChains` method of contract.
 func (c *ContractReader) ListChains(namespace string, container string, name []byte) ([]stackitem.Item, error) {
 	return unwrap.Array(c.invoker.Call(c.hash, "listChains", namespace, container, name))

tests/container_test.go

@@ -165,6 +165,14 @@ func checkContainerList(t *testing.T, c *neotest.ContractInvoker, expected [][]b
 	})
 }
 
+const (
+	// default SOA record field values
+	defaultRefresh = 3600                 // 1 hour
+	defaultRetry   = 600                  // 10 min
+	defaultExpire  = 3600 * 24 * 365 * 10 // 10 years
+	defaultTTL     = 3600                 // 1 hour
+)
+
 func TestContainerPut(t *testing.T) {
 	c, cBal, _ := newContainerInvoker(t)
 
@@ -233,6 +241,63 @@ func TestContainerPut(t *testing.T) {
 		})
 	})
 
+	t.Run("create global domain", func(t *testing.T) {
+		ctrNNS := neotest.CompileFile(t, c.CommitteeHash, nnsPath, path.Join(nnsPath, "config.yml"))
+		nnsHash := ctrNNS.Hash
+		cNNS := c.CommitteeInvoker(nnsHash)
+		cNNS.Invoke(t, true, "register",
+			"animals", c.CommitteeHash,
+			"whateveriwant@world.com", int64(defaultRefresh), int64(defaultRetry), int64(defaultExpire), int64(defaultTTL))
+
+		cNNS.Invoke(t, true, "register",
+			"ns", c.CommitteeHash,
+			"whateveriwant@world.com", int64(defaultRefresh), int64(defaultRetry), int64(defaultExpire), int64(0))
+
+		cNNS.Invoke(t, true, "register",
+			"poland.ns", c.CommitteeHash,
+			"whateveriwant@world.com", int64(defaultRefresh), int64(defaultRetry), int64(defaultExpire), int64(0))
+
+		cNNS.Invoke(t, true, "register",
+			"sweden.ns", c.CommitteeHash,
+			"whateveriwant@world.com", int64(defaultRefresh), int64(defaultRetry), int64(defaultExpire), int64(defaultExpire))
+
+		cNNS.Invoke(t, stackitem.Null{}, "addRecord",
+			"poland.ns", int64(nns.TXT), nns.Cnametgt+"=animals")
+
+		cNNS.Invoke(t, stackitem.Null{}, "addRecord", "poland.ns", int64(nns.TXT), "random-record")
+
+		cNNS.Invoke(t, stackitem.Null{}, "addRecord", "poland.ns", int64(nns.TXT), "ne-qqq=random-record2")
+		cNNS.Invoke(t, stackitem.Null{}, "addRecord", "sweden.ns", int64(nns.TXT), nns.Cnametgt+"=animals")
+
+		balanceMint(t, cBal, acc, (containerFee+containerAliasFee)*5, []byte{})
+		cNNS.Invoke(t, true, "isAvailable", "bober.animals")
+		putArgs := []any{cnt.value, cnt.sig, cnt.pub, cnt.token, "bober", "poland.ns"}
+		c3 := c.WithSigners(c.Committee, acc)
+		c3.Invoke(t, stackitem.Null{}, "putNamed", putArgs...)
+
+		cNNS.Invoke(t, false, "isAvailable", "bober.animals")
+
+		putArgs = []any{cnt.value, cnt.sig, cnt.pub, cnt.token, "bober", "sweden.ns"}
+
+		c3.InvokeFail(t, "global domain is already taken", "putNamed", putArgs...)
+		cNNS.InvokeFail(t, "global domain is already taken", "isAvailable", "bober.poland.ns")
+
+		cnt2 := dummyContainer(acc)
+		cNNS.Invoke(t, true, "isAvailable", "uzik.poland.ns")
+		putArgs = []any{cnt2.value, cnt2.sig, cnt2.pub, cnt2.token, "uzik", "poland.ns"}
+		c3.Invoke(t, stackitem.Null{}, "putNamed", putArgs...)
+
+		c3.Invoke(t, stackitem.Null{}, "delete", cnt.id[:], cnt.sig, cnt.pub, cnt.token)
+		cNNS.Invoke(t, true, "isAvailable", "bober.animals")
+		cNNS.Invoke(t, false, "isAvailable", "bober.poland.ns")
+
+		cNNS.InvokeFail(t, "global domain is already taken", "isAvailable", "uzik.poland.ns")
+		cNNS.Invoke(t, false, "isAvailable", "uzik.animals")
+
+		records := stackitem.NewArray([]stackitem.Item{stackitem.NewBuffer([]byte("uzik.poland.ns")), stackitem.NewByteArray([]byte(base58.Encode(cnt2.id[:])))})
+		cNNS.Invoke(t, records, "resolve", "uzik.animals", int64(nns.TXT))
+	})
+
 	t.Run("gas costs are the same for all containers in block", func(t *testing.T) {
 		const (
 			containerPerBlock = 512

tests/frostfsid_test.go

@@ -604,6 +604,44 @@ func TestFrostFSID_GroupManagement(t *testing.T) {
 	})
 }
 
+func TestAdditionalKeyFromPrimarySubject(t *testing.T) {
+	f := newFrostFSIDInvoker(t)
+	invoker := f.OwnerInvoker()
+
+	subjAPrimaryKey, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+	subjAKeyAddr := subjAPrimaryKey.PublicKey().GetScriptHash()
+
+	subjBPrimaryKey, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+	subjBKeyAddr := subjBPrimaryKey.PublicKey().GetScriptHash()
+
+	subjCPrimaryKey, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+
+	subjDPrimaryKey, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+
+	invoker.Invoke(t, stackitem.Null{}, createSubjectMethod, defaultNamespace, subjAPrimaryKey.PublicKey().Bytes())
+
+	invoker.Invoke(t, stackitem.Null{}, createSubjectMethod, defaultNamespace, subjBPrimaryKey.PublicKey().Bytes())
+
+	invoker.InvokeFail(t, "key is occupied", addSubjectKeyMethod, subjBKeyAddr, subjAPrimaryKey.PublicKey().Bytes())
+
+	invoker.Invoke(t, stackitem.Null{}, addSubjectKeyMethod, subjAKeyAddr, subjCPrimaryKey.PublicKey().Bytes())
+	invoker.InvokeFail(t, "key is occupied", addSubjectKeyMethod, subjBKeyAddr, subjCPrimaryKey.PublicKey().Bytes())
+
+	invoker.Invoke(t, stackitem.Null{}, addSubjectKeyMethod, subjAKeyAddr, subjDPrimaryKey.PublicKey().Bytes())
+
+	invoker.InvokeFail(t, "key is occupied", addSubjectKeyMethod, subjBKeyAddr, subjDPrimaryKey.PublicKey().Bytes())
+	invoker.Invoke(t, stackitem.Null{}, removeSubjectKeyMethod, subjAKeyAddr, subjDPrimaryKey.PublicKey().Bytes())
+	invoker.Invoke(t, stackitem.Null{}, addSubjectKeyMethod, subjBKeyAddr, subjDPrimaryKey.PublicKey().Bytes())
+
+	invoker.InvokeFail(t, "key is occupied", addSubjectKeyMethod, subjAKeyAddr, subjDPrimaryKey.PublicKey().Bytes())
+	invoker.Invoke(t, stackitem.Null{}, deleteSubjectMethod, subjBKeyAddr)
+	invoker.Invoke(t, stackitem.Null{}, addSubjectKeyMethod, subjAKeyAddr, subjDPrimaryKey.PublicKey().Bytes())
+}
+
 func checkPublicKeyResult(t *testing.T, s *vm.Stack, err error, key *keys.PrivateKey) {
 	if key == nil {
 		require.ErrorContains(t, err, "not found")

tests/nns_test.go

@@ -10,11 +10,14 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-contract/nns"
 	"github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/gas"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neo-go/pkg/wallet"
 	"github.com/stretchr/testify/require"
 )
 
@@ -22,8 +25,7 @@ const nnsPath = "../nns"
 
 const msPerYear = 365 * 24 * time.Hour / time.Millisecond
 
-func newNNSInvoker(t *testing.T, addRoot bool) *neotest.ContractInvoker {
+func deployNNS(t *testing.T, e *neotest.Executor, addRoot bool) *neotest.ContractInvoker {
-	e := newExecutor(t)
 	ctr := neotest.CompileFile(t, e.CommitteeHash, nnsPath, path.Join(nnsPath, "config.yml"))
 	e.DeployContract(t, ctr, nil)
 
@@ -38,6 +40,28 @@ func newNNSInvoker(t *testing.T, addRoot bool) *neotest.ContractInvoker {
 	return c
 }
 
+func newNNSInvoker(t *testing.T, addRoot bool) *neotest.ContractInvoker {
+	e := newExecutor(t)
+	return deployNNS(t, e, addRoot)
+}
+
+func newNNSInvokerWithFrostfsID(t *testing.T, addRoot bool) (*neotest.ContractInvoker, *neotest.ContractInvoker) {
+	e := newExecutor(t)
+	c := deployNNS(t, e, addRoot)
+
+	frostfdID := deployFrostFSIDContract(t, e, e.CommitteeHash)
+	c.Invoke(t, true, "register",
+		nns.FrostfsIDNNSName, c.CommitteeHash,
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c.Invoke(t, stackitem.Null{}, "addRecord",
+		nns.FrostfsIDNNSName, int64(nns.TXT), frostfdID.StringLE())
+
+	c.Invoke(t, stackitem.Null{}, "addRecord",
+		nns.FrostfsIDNNSName, int64(nns.TXT), address.Uint160ToString(frostfdID))
+	return e.NewInvoker(c.Hash), e.CommitteeInvoker(frostfdID)
+}
+
 func TestNNSGeneric(t *testing.T) {
 	c := newNNSInvoker(t, false)
 
@@ -54,6 +78,9 @@ func TestNNSRegisterTLD(t *testing.T) {
 	c.InvokeFail(t, "invalid domain name format", "register",
 		"0com", c.CommitteeHash,
 		"email@frostfs.info", refresh, retry, expire, ttl)
+	c.InvokeFail(t, "invalid fragment '0com'", "register",
+		"0com", c.CommitteeHash,
+		"email@frostfs.info", refresh, retry, expire, ttl)
 
 	acc := c.NewAccount(t)
 	cAcc := c.WithSigners(acc)
@@ -69,6 +96,12 @@ func TestNNSRegisterTLD(t *testing.T) {
 		c.InvokeFail(t, "invalid domain name format", "register",
 			"x", c.CommitteeHash,
 			"email@frostfs.info", refresh, retry, expire, ttl)
+		c.InvokeFail(t, "domain name too short", "register",
+			"x", c.CommitteeHash,
+			"email@frostfs.info", refresh, retry, expire, ttl)
+		c.InvokeFail(t, "domain name too long", "register",
+			getTooLongDomainName(255), c.CommitteeHash,
+			"email@frostfs.info", refresh, retry, expire, ttl)
 	})
 
 	c.Invoke(t, true, "register",
@@ -90,6 +123,18 @@ func TestNNSRegister(t *testing.T) {
 		"com", accTop.ScriptHash(),
 		"myemail@frostfs.info", refresh, retry, expire, ttl)
 
+	c1.Invoke(t, true, "register",
+		"aa.bb.zz", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c1.InvokeFail(t, "TLD already exists", "register",
+		"zz", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c1.Invoke(t, true, "register",
+		"xx.bb.zz", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
 	acc := c.NewAccount(t)
 	c2 := c.WithSigners(c.Committee, acc)
 	c2.InvokeFail(t, "not witnessed by admin", "register",
@@ -101,26 +146,43 @@ func TestNNSRegister(t *testing.T) {
 		c3.InvokeFail(t, "invalid domain name format", "register",
 			"-testdomain.com", acc.ScriptHash(),
 			"myemail@frostfs.info", refresh, retry, expire, ttl)
+		c3.InvokeFail(t, "invalid fragment '-testdomain'", "register",
+			"-testdomain.com", acc.ScriptHash(),
+			"myemail@frostfs.info", refresh, retry, expire, ttl)
+
 		c3.InvokeFail(t, "invalid domain name format", "register",
 			"testdomain-.com", acc.ScriptHash(),
 			"myemail@frostfs.info", refresh, retry, expire, ttl)
+		c3.InvokeFail(t, "invalid fragment 'testdomain-'", "register",
+			"testdomain-.com", acc.ScriptHash(),
+			"myemail@frostfs.info", refresh, retry, expire, ttl)
+
 		c3.Invoke(t, true, "register",
 			"test-domain.com", acc.ScriptHash(),
 			"myemail@frostfs.info", refresh, retry, expire, ttl)
 	})
-	c3.Invoke(t, true, "register",
+	expected := stackitem.NewArray([]stackitem.Item{
+		stackitem.NewByteArray([]byte("testdomain.com")),
+	})
+	tx := c3.Invoke(t, true, "register",
 		"testdomain.com", acc.ScriptHash(),
 		"myemail@frostfs.info", refresh, retry, expire, ttl)
+	c.CheckTxNotificationEvent(t, tx, -1, state.NotificationEvent{ScriptHash: c.Hash, Name: "RegisterDomain", Item: expected})
 
 	b := c.TopBlock(t)
-	expected := stackitem.NewArray([]stackitem.Item{stackitem.NewBuffer(
+	expected = stackitem.NewArray([]stackitem.Item{stackitem.NewBuffer(
 		[]byte(fmt.Sprintf("testdomain.com myemail@frostfs.info %d %d %d %d %d",
 			b.Timestamp, refresh, retry, expire, ttl)))})
 	c.Invoke(t, expected, "getRecords", "testdomain.com", int64(nns.SOA))
 
 	cAcc := c.WithSigners(acc)
-	cAcc.Invoke(t, stackitem.Null{}, "addRecord",
+
+	expected = stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte("testdomain.com")),
+		stackitem.NewBigInteger(big.NewInt(int64(nns.TXT)))})
+	tx = cAcc.Invoke(t, stackitem.Null{}, "addRecord",
 		"testdomain.com", int64(nns.TXT), "first TXT record")
+	c.CheckTxNotificationEvent(t, tx, 0, state.NotificationEvent{ScriptHash: c.Hash, Name: "AddRecord", Item: expected})
+
 	cAcc.InvokeFail(t, "record already exists", "addRecord",
 		"testdomain.com", int64(nns.TXT), "first TXT record")
 	cAcc.Invoke(t, stackitem.Null{}, "addRecord",
@@ -132,16 +194,183 @@ func TestNNSRegister(t *testing.T) {
 	})
 	c.Invoke(t, expected, "getRecords", "testdomain.com", int64(nns.TXT))
 
-	cAcc.Invoke(t, stackitem.Null{}, "setRecord",
+	expected = stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte("testdomain.com")),
+		stackitem.NewBigInteger(big.NewInt(int64(nns.TXT)))})
+	tx = cAcc.Invoke(t, stackitem.Null{}, "setRecord",
 		"testdomain.com", int64(nns.TXT), int64(0), "replaced first")
+	c.CheckTxNotificationEvent(t, tx, 0, state.NotificationEvent{ScriptHash: c.Hash, Name: "AddRecord", Item: expected})
 
 	expected = stackitem.NewArray([]stackitem.Item{
 		stackitem.NewByteArray([]byte("replaced first")),
 		stackitem.NewByteArray([]byte("second TXT record")),
 	})
 	c.Invoke(t, expected, "getRecords", "testdomain.com", int64(nns.TXT))
+
+	tx = cAcc.Invoke(t, stackitem.Null{}, "deleteRecords", "testdomain.com", int64(nns.TXT))
+	expected = stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte("testdomain.com")),
+		stackitem.NewBigInteger(big.NewInt(int64(nns.TXT)))})
+	c.CheckTxNotificationEvent(t, tx, 0, state.NotificationEvent{ScriptHash: c.Hash, Name: "DeleteRecords", Item: expected})
+
+	c.Invoke(t, stackitem.Null{}, "getRecords", "testdomain.com", int64(nns.TXT))
+
+	cAcc.Invoke(t, stackitem.Null{}, "addRecord",
+		"testdomain.com", int64(nns.TXT), "rec1")
+
+	cAcc.Invoke(t, stackitem.Null{}, "addRecord",
+		"testdomain.com", int64(nns.TXT), "rec2")
+
+	cAcc.Invoke(t, stackitem.Null{}, "addRecord",
+		"testdomain.com", int64(nns.TXT), "rec3")
+
+	cAcc.Invoke(t, stackitem.Null{}, "addRecord",
+		"testdomain.com", int64(nns.TXT), "rec4")
+
+	cAcc.Invoke(t, false, "deleteRecord",
+		"testdomain.com", int64(nns.TXT), "rec9999")
+
+	cAcc.Invoke(t, true, "deleteRecord",
+		"testdomain.com", int64(nns.TXT), "rec1")
+
+	expected = stackitem.NewArray([]stackitem.Item{
+		stackitem.NewByteArray([]byte("rec2")),
+		stackitem.NewByteArray([]byte("rec3")),
+		stackitem.NewByteArray([]byte("rec4")),
+	})
+	c.Invoke(t, expected, "getRecords", "testdomain.com", int64(nns.TXT))
+
+	cAcc.Invoke(t, true, "deleteRecord",
+		"testdomain.com", int64(nns.TXT), "rec4")
+
+	cAcc.Invoke(t, true, "deleteRecord",
+		"testdomain.com", int64(nns.TXT), "rec2")
+
+	expected = stackitem.NewArray([]stackitem.Item{
+		stackitem.NewByteArray([]byte("rec3")),
+	})
+	c.Invoke(t, expected, "getRecords", "testdomain.com", int64(nns.TXT))
+
+	cAcc.Invoke(t, true, "deleteRecord",
+		"testdomain.com", int64(nns.TXT), "rec3")
+
+	c.Invoke(t, stackitem.Null{}, "getRecords", "testdomain.com", int64(nns.TXT))
+
+	tx = cAcc.Invoke(t, stackitem.Null{}, "deleteDomain", "testdomain.com")
+	expected = stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte("testdomain.com")),
+		stackitem.NewBigInteger(big.NewInt(int64(nns.CNAME)))})
+	c.CheckTxNotificationEvent(t, tx, 0, state.NotificationEvent{ScriptHash: c.Hash, Name: "DeleteRecords", Item: expected})
+
+	expected = stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte("testdomain.com"))})
+	c.CheckTxNotificationEvent(t, tx, 4, state.NotificationEvent{ScriptHash: c.Hash, Name: "DeleteDomain", Item: expected})
+
+	c.InvokeFail(t, "token not found", "getRecords", "testdomain.com", int64(nns.SOA))
 }
 
+func TestDeleteDomain(t *testing.T) {
+	c := newNNSInvoker(t, false)
+
+	acc1 := c.NewAccount(t)
+	c1 := c.WithSigners(c.Committee, acc1)
+
+	acc2 := c.NewAccount(t)
+	c2 := c.WithSigners(c.Committee, acc2)
+	c1.Invoke(t, true, "register",
+		"com", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, true, "register",
+		"testdomain.com", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, true, "register",
+		"domik.testdomain.com", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.InvokeFail(t, "domain not found", "deleteDomain", "ru")
+	c1.InvokeFail(t, "can't delete TLD domain that has subdomains", "deleteDomain", "com")
+	c1.Invoke(t, stackitem.Null{}, "deleteDomain", "testdomain.com")
+
+	c1.Invoke(t, true, "register",
+		"aa.bb.zz", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.InvokeFail(t, "TLD already exists", "register",
+		"zz", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, stackitem.Null{}, "deleteDomain", "aa.bb.zz")
+
+	c1.Invoke(t, true, "register",
+		"zz", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, true, "register",
+		"cn", acc1.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c2.InvokeFail(t, "not witnessed by admin", "deleteDomain", "cn")
+
+	c1.Invoke(t, stackitem.Null{}, "deleteDomain", "cn")
+
+	c2.Invoke(t, true, "register",
+		"cn", acc2.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, true, "register",
+		"gu.bububu.bubu.bu", c.CommitteeHash,
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, true, "register",
+		"buu.gu.bububu.bubu.bu", c.CommitteeHash,
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	c1.Invoke(t, true, "register",
+		"bubu.bu", c.CommitteeHash,
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+}
+
+func TestGlobalDomain(t *testing.T) {
+	c := newNNSInvoker(t, false)
+
+	accTop := c.NewAccount(t)
+	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
+	c1 := c.WithSigners(c.Committee, accTop)
+	c1.Invoke(t, true, "register",
+		"com", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c1.Invoke(t, true, "register",
+		"testdomain.com", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c1.Invoke(t, true, "register",
+		"globaldomain.com", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c1.Invoke(t, true, "register",
+		"domik.testdomain.com", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+	c1.Invoke(t, stackitem.Null{}, "addRecord",
+		"domik.testdomain.com", int64(nns.TXT), "CID")
+
+	c.Invoke(t, true, "isAvailable", "domik.globaldomain.com")
+
+	c1.Invoke(t, stackitem.Null{}, "addRecord",
+		"testdomain.com", int64(nns.TXT), nns.Cnametgt+"=globaldomain.com")
+	c.Invoke(t, true, "isAvailable", "dom.testdomain.com")
+
+	c1.Invoke(t, stackitem.Null{}, "addRecord",
+		"domik.testdomain.com", int64(nns.TXT), "random txt record")
+	c.Invoke(t, true, "isAvailable", "domik.globaldomain.com")
+
+	c1.Invoke(t, true, "register",
+		"dom.testdomain.com", accTop.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c1.Invoke(t, stackitem.Null{}, "addRecord",
+		"dom.testdomain.com", int64(nns.TXT), "CID")
+
+	c.InvokeFail(t, "global domain is already taken", "isAvailable", "dom.testdomain.com")
+}
 func TestTLDRecord(t *testing.T) {
 	c := newNNSInvoker(t, true)
 	c.Invoke(t, stackitem.Null{}, "addRecord",
@@ -166,11 +395,6 @@ func TestNNSRegisterMulti(t *testing.T) {
 	cBoth.Invoke(t, true, "register", args...)
 
 	c1 := c.WithSigners(acc)
-	t.Run("parent domain is missing", func(t *testing.T) {
-		msg := "domain does not exist or is expired: fs.neo.com"
-		args[0] = "testnet.fs.neo.com"
-		c1.InvokeFail(t, msg, "register", args...)
-	})
 
 	args[0] = "fs.neo.com"
 	c1.Invoke(t, true, "register", args...)
@@ -326,11 +550,44 @@ func TestNNSSetAdmin(t *testing.T) {
 		"testdomain.com", int64(nns.TXT), "will be added")
 }
 
+func TestNNS_Frostfsid(t *testing.T) {
+	nnsInv, f := newNNSInvokerWithFrostfsID(t, false)
+
+	acc, err := wallet.NewAccount()
+	require.NoError(t, err)
+	nnsUserInv := nnsInv.NewInvoker(nnsInv.Hash, newSigner(t, nnsInv, acc))
+
+	nnsUserInv.InvokeFail(t, "not witnessed by committee", "register",
+		"ddd", acc.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	nnsUserInv.InvokeFail(t, "not witnessed by committee", "register",
+		"testdomain.kz", acc.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	f.Invoke(t, stackitem.Null{}, createSubjectMethod, "", acc.PrivateKey().PublicKey().Bytes())
+
+	nnsUserInv.InvokeFail(t, "not witnessed by committee", "register",
+		"testdomain.kz", acc.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	f.Invoke(t, stackitem.Null{}, setSubjectKVMethod, acc.ScriptHash(), nns.FrostfsIDNNSTLDPermissionKey, nns.FrostfsIDTLDRegistrationAllowed)
+
+	nnsUserInv.Invoke(t, true, "register",
+		"testdomain.kz", acc.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+
+	f.Invoke(t, stackitem.Null{}, deleteSubjectKVMethod, acc.ScriptHash(), nns.FrostfsIDNNSTLDPermissionKey)
+
+	nnsUserInv.InvokeFail(t, "not witnessed by committee", "register",
+		"testdomain.uz", acc.ScriptHash(),
+		"myemail@frostfs.info", defaultRefresh, defaultRetry, defaultExpire, defaultTTL)
+}
+
 func TestNNSIsAvailable(t *testing.T) {
 	c := newNNSInvoker(t, false)
 
 	c.Invoke(t, true, "isAvailable", "com")
-	c.InvokeFail(t, "TLD not found", "isAvailable", "domain.com")
 
 	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
 	c.Invoke(t, true, "register",
@@ -343,21 +600,35 @@ func TestNNSIsAvailable(t *testing.T) {
 	acc := c.NewAccount(t)
 	c1 := c.WithSigners(c.Committee, acc)
 
-	c1.InvokeFail(t, "domain does not exist or is expired: domain.com", "isAvailable", "dom.domain.com")
 	c1.Invoke(t, true, "register",
 		"domain.com", acc.ScriptHash(),
 		"myemail@frostfs.info", refresh, retry, expire, ttl)
 
+	c1.Invoke(t, true, "register",
+		"globaldomain.com", acc.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
 	c.Invoke(t, false, "isAvailable", "domain.com")
 
 	c.Invoke(t, true, "isAvailable", "dom.domain.com")
-	c.InvokeFail(t, "domain does not exist or is expired: dom.domain.com", "isAvailable", "dom.dom.domain.com")
 
 	c1.Invoke(t, true, "register",
 		"dom.domain.com", acc.ScriptHash(),
 		"myemail@frostfs.info", refresh, retry, expire, ttl)
 	c.Invoke(t, false, "isAvailable", "dom.domain.com")
 	c.Invoke(t, true, "isAvailable", "dom.dom.domain.com")
+
+	c1.Invoke(t, stackitem.Null{}, "addRecord",
+		"dom.domain.com", int64(nns.TXT), nns.Cnametgt+"=globaldomain.com")
+	c.Invoke(t, true, "isAvailable", "dom.dom.domain.com")
+
+	c1.Invoke(t, true, "register",
+		"dom.globaldomain.com", acc.ScriptHash(),
+		"myemail@frostfs.info", refresh, retry, expire, ttl)
+
+	c.InvokeFail(t, "global domain is already taken", "isAvailable", "dom.dom.domain.com")
+
+	c.InvokeFail(t, "domain name too long", "isAvailable", getTooLongDomainName(255))
 }
 
 func TestNNSRenew(t *testing.T) {
@@ -382,6 +653,7 @@ func TestNNSRenew(t *testing.T) {
 		{Key: stackitem.Make("expiration"), Value: stackitem.Make(ts)},
 	})
 	cAcc.Invoke(t, expected, "properties", "testdomain.com")
+	c.InvokeFail(t, "domain name too long", "renew", getTooLongDomainName(255))
 }
 
 func TestNNSResolve(t *testing.T) {
@@ -431,3 +703,11 @@ func TestNNSAndProxy(t *testing.T) {
 		checkBalance(t, c.CommitteeHash, 1)
 	})
 }
+
+func getTooLongDomainName(max int) (res string) {
+	for len(res) < max {
+		res += "dom."
+	}
+	res += "com"
+	return res
+}

tests/policy_test.go

@@ -66,6 +66,7 @@ func TestPolicy(t *testing.T) {
 	checkChains(t, e, "mynamespace", "cnr1", "ingress", [][]byte{p1, p2, p33}) // Override chain.
 	checkChainsByPrefix(t, e, policy.Container, "cnr1", "", [][]byte{p2, p33})
 	checkChainsByPrefix(t, e, policy.IAM, "", "", nil)
+	checkChainKeys(t, e, policy.Container, "cnr1", []string{"ingress:myrule2", "ingress:myrule3"})
 
 	checkChainsIteratorByPrefix(t, e, policy.Container, "cnr1", "ingress:myrule3", [][]byte{p33})
 	checkChainsIteratorByPrefix(t, e, policy.Container, "cnr1", "ingress", [][]byte{p2, p33})
@@ -151,6 +152,25 @@ func checkChainsIteratorByPrefix(t *testing.T, e *neotest.ContractInvoker, kind
 	}
 }
 
+func checkChainKeys(t *testing.T, e *neotest.ContractInvoker, kind byte, entityName string, expected []string) {
+	s, err := e.TestInvoke(t, "listChainNames", kind, entityName)
+	require.NoError(t, err)
+
+	if s.Len() == 0 {
+		t.Fatal("Stack is empty")
+	}
+
+	iteratorItem := s.Pop().Value().(*storage.Iterator)
+	policys := iteratorToArray(iteratorItem)
+	require.Equal(t, len(expected), len(policys))
+
+	for i := range expected {
+		bytesPolicy, err := policys[i].TryBytes()
+		require.NoError(t, err)
+		require.Equal(t, expected[i], string(bytesPolicy))
+	}
+}
+
 func checksChainsOnStack(t *testing.T, s *vm.Stack, expected [][]byte) {
 	require.Equal(t, 1, s.Len())