[#131] nns: Declare getAllRecords() as safe

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

.forgejo/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,45 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: community, triage, bug
+assignees: ''
+
+---
+
+<!--- Provide a general summary of the issue in the Title above -->
+
+## Expected Behavior
+<!--- If you're describing a bug, tell us what should happen -->
+<!--- If you're suggesting a change/improvement, tell us how it should work -->
+
+## Current Behavior
+<!--- If describing a bug, tell us what happens instead of the expected behavior -->
+<!--- If suggesting a change/improvement, explain the difference from current behavior -->
+
+## Possible Solution
+<!--- Not obligatory -->
+<!--- If no reason/fix/additions for the bug can be suggested, -->
+<!--- uncomment the following phrase: -->
+
+<!--- No fix can be suggested by a QA engineer. Further solutions shall be up to developers. -->
+
+## Steps to Reproduce (for bugs)
+<!--- Provide a link to a live example, or an unambiguous set of steps to -->
+<!--- reproduce this bug. -->
+
+1.
+
+## Context
+<!--- How has this issue affected you? What are you trying to accomplish? -->
+<!--- Providing context helps us come up with a solution that is most useful in the real world -->
+
+## Regression
+<!-- Is this issue a regression? (Yes / No) -->
+<!-- If Yes, optionally please include version or commit id or PR# that caused this regression, if you have these details. -->
+
+## Your Environment
+<!--- Include as many relevant details about the environment you experienced the bug in -->
+* Version used:
+* Server setup and configuration:
+* Operating System and version (`uname -a`):

.forgejo/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false

.forgejo/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: community, triage
+assignees: ''
+
+---
+
+## Is your feature request related to a problem? Please describe.
+<!--- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
+
+## Describe the solution you'd like
+<!--- A clear and concise description of what you want to happen. -->
+
+## Describe alternatives you've considered
+<!--- A clear and concise description of any alternative solutions or features you've considered. -->
+
+## Additional context
+<!--- Add any other context or screenshots about the feature request here. -->

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.forgejo/workflows/codegen.yml

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+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

@@ -0,0 +1,21 @@
+name: DCO action
+on: [pull_request]
+
+jobs:
+  dco:
+    name: DCO
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.23'
+
+      - name: Run commit format checker
+        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3
+        with:
+          from: 'origin/${{ github.event.pull_request.base.ref }}'

.forgejo/workflows/tests.yml

@@ -0,0 +1,21 @@
+name: Tests
+on: [pull_request]
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go_versions: [ '1.22', '1.23' ]
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '${{ matrix.go_versions }}'
+
+      - name: Run tests
+        run: make test

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-*   @carpawell @fyrchik @cthulhu-rider

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-    </g>
-  </g>
-</svg>

.github/workflows/dco.yml

@@ -1,21 +0,0 @@
-name: DCO check
-
-on:
-  pull_request:
-    branches:
-      - master
-
-jobs:
-  commits_check_job:
-    runs-on: ubuntu-latest
-    name: Commits Check
-    steps:
-    - name: Get PR Commits
-      id: 'get-pr-commits'
-      uses: tim-actions/get-pr-commits@master
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-    - name: DCO Check
-      uses: tim-actions/dco@master
-      with:
-        commits: ${{ steps.get-pr-commits.outputs.commits }}

.github/workflows/go.yml

@@ -1,20 +0,0 @@
-name: Go
-
-on:
-  pull_request:
-    branches: [ master ]
-
-jobs:
-
-  tests:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Set up Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.17
-
-    - name: Test
-      run: go test -v ./...

.gitignore

@@ -4,3 +4,7 @@
 config.json
 /vendor/
 .idea
+/bin/
+
+# debhelpers
+**/.debhelper

CHANGELOG.md

@@ -1,11 +1,48 @@
 # Changelog
-Changelog for NeoFS Contract
+Changelog for FrostFS Contract
 
 ## [Unreleased]
 
 ### Added
 ### Changed
+### Removed
 ### Updated
+### Fixed
+
+## [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
+
+### Added
+- Documentation for contract storage schema (#21)
+### Changed
+- `container.Delete()` now accepts public key along with token (#27)
+- Allow to check whether container was deleted with `container.DeletionInfo()` (#38)
+### Removed
+- `subnet` contract (#20)
+### Updated
+### Fixed
+### Updating from v0.17.0
+
+## [0.17.0] - 2023-04-13 - Furtwängler
+
+### Added
+### Changed
+### Removed
+- Notary disabled code from all contracts (#7)
+
+### Updated
+- `neo-go` to `v0.99.4`
+
 ### Fixed
 ### Updating from v0.16.0
 

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

Makefile

@@ -1,23 +1,34 @@
 #!/usr/bin/make -f
 
 SHELL=bash
-GOBIN ?= $(shell go env GOPATH)/bin
+# GOBIN is used only to install neo-go and allows to override
+# the location of written binary.
+export GOBIN ?= $(shell pwd)/bin
 NEOGO ?= $(GOBIN)/cli
 VERSION ?= $(shell git describe --tags --dirty --match "v*" --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")
 
+
+# .deb package versioning
+OS_RELEASE = $(shell lsb_release -cs)
+PKG_VERSION ?= $(shell echo $(VERSION) | sed "s/^v//" | \
+			sed -E "s/(.*)-(g[a-fA-F0-9]{6,8})(.*)/\1\3~\2/" | \
+			sed "s/-/~/")-${OS_RELEASE}
+
 .PHONY: all build clean test neo-go
 .PHONY: alphabet mainnet morph nns sidechain
+.PHONY: debpackage debclean
 build: neo-go all
 all: sidechain mainnet
 sidechain: alphabet morph nns
 
 alphabet_sc = alphabet
-morph_sc = audit balance container neofsid netmap proxy reputation subnet
+morph_sc = balance container frostfsid netmap proxy policy
-mainnet_sc = neofs processing
+mainnet_sc = frostfs processing
 nns_sc = nns
+all_sc = $(alphabet_sc) $(morph_sc) $(mainnet_sc) $(nns_sc)
 
 define sc_template
-$(2)$(1)/$(1)_contract.nef: $(2)$(1)/$(1)_contract.go
+$(2)$(1)/$(1)_contract.nef: $(2)$(1)/$(1)_contract.go $(2)$(1)/config.yml
 	$(NEOGO) contract compile -i $(2)$(1) -c $(if $(2),$(2),$(1)/)config.yml -m $(2)$(1)/config.json -o $(2)$(1)/$(1)_contract.nef
 
 $(if $(2),$(2)$(1)/$(1)_contract.go: alphabet/alphabet.go alphabet/alphabet.tpl
@@ -39,12 +50,36 @@ neo-go:
 	@go list -f '{{.Path}}/...@{{.Version}}' -m github.com/nspcc-dev/neo-go \
 		| xargs go install -v
 
+generate-wrapper.%:
+	@mkdir -p ./rpcclient/$*
+	@# Note, that bindings file is currently missing: is can be emitted by compiler,
+	@# but this leads to a large amount of code duplication. It can be written by hand,
+	@# in case we need to override the type of some variables.
+	@# --config $*/$*.bindings.yml
+	@# Unfortunately, primitive integer types are not yet supported.
+	$(NEOGO) contract generate-rpcwrapper --manifest=$*/config.json --out ./rpcclient/$*/client.go
+
+generate-wrappers: build $(foreach sc,$(all_sc),generate-wrapper.$(sc))
+
 test:
 	@go test ./tests/...
 
+# Run all code formatters
+fmts: fumpt imports
+
+# Reformat imports
+imports:
+	@echo "⇒ Processing goimports check"
+	@goimports -w $(all_sc) tests/
+
+fumpt:
+	@echo "⇒ Processing gofumpt check"
+	@gofumpt -l -w $(all_sc) tests/
+
 clean:
 	find . -name '*.nef' -exec rm -rf {} \;
 	find . -name 'config.json' -exec rm -rf {} \;
+	rm -rf ./bin/
 
 mr_proper: clean
 	for sc in $(alphabet_sc); do\
@@ -52,6 +87,18 @@ mr_proper: clean
 	done
 
 archive: build
-	@tar --transform "s|^./|neofs-contract-$(VERSION)/|" \
+	@tar --transform "s|^./|frostfs-contract-$(VERSION)/|" \
-		-czf neofs-contract-$(VERSION).tar.gz \
+		-czf frostfs-contract-$(VERSION).tar.gz \
 		$(shell find . -name '*.nef' -o -name 'config.json')
+
+# Package for Debian
+debpackage:
+	dch --package frostfs-contract \
+			--controlmaint \
+			--newversion $(PKG_VERSION) \
+			--distribution $(OS_RELEASE) \
+			"Please see CHANGELOG.md for code changes for $(VERSION)"
+	dpkg-buildpackage --no-sign -b
+
+debclean:
+	dh clean		

README.md

@@ -1,21 +1,21 @@
 <p align="center">
-<img src="./.github/logo.svg" width="500px" alt="NeoFS">
+<img src="./.forgejo/logo.svg" width="500px" alt="FrostFS">
 </p>
 <p align="center">
-  <a href="https://fs.neo.org">NeoFS</a> related smart contracts.
+  <a href="https://frostfs.info">FrostFS</a> related smart contracts.
 </p>
 
 ---
 
 # Overview
 
-NeoFS-Contract contains all NeoFS related contracts written for
+FrostFS-Contract contains all FrostFS related contracts written for
 [neo-go](https://github.com/nspcc-dev/neo-go) compiler. These contracts
 are deployed both in the mainchain and the sidechain.
 
 Mainchain contracts:
 
-- neofs
+- frostfs
 - processing
 
 Sidechain contracts:
@@ -24,12 +24,11 @@ Sidechain contracts:
 - audit
 - balance
 - container
-- neofsid
+- frostfsid
 - netmap
 - nns
 - proxy
 - reputation
-- subnet
 
 # Getting started 
 
@@ -51,13 +50,12 @@ $ make all
 /home/user/go/bin/cli contract compile -i audit -c audit/config.yml -m audit/config.json -o audit/audit_contract.nef
 /home/user/go/bin/cli contract compile -i balance -c balance/config.yml -m balance/config.json -o balance/balance_contract.nef
 /home/user/go/bin/cli contract compile -i container -c container/config.yml -m container/config.json -o container/container_contract.nef
-/home/user/go/bin/cli contract compile -i neofsid -c neofsid/config.yml -m neofsid/config.json -o neofsid/neofsid_contract.nef
+/home/user/go/bin/cli contract compile -i frostfsid -c frostfsid/config.yml -m frostfsid/config.json -o frostfsid/frostfsid_contract.nef
 /home/user/go/bin/cli contract compile -i netmap -c netmap/config.yml -m netmap/config.json -o netmap/netmap_contract.nef
 /home/user/go/bin/cli contract compile -i proxy -c proxy/config.yml -m proxy/config.json -o proxy/proxy_contract.nef
 /home/user/go/bin/cli contract compile -i reputation -c reputation/config.yml -m reputation/config.json -o reputation/reputation_contract.nef
-/home/user/go/bin/cli contract compile -i subnet -c subnet/config.yml -m subnet/config.json -o subnet/subnet_contract.nef
 /home/user/go/bin/cli contract compile -i nns -c nns/config.yml -m nns/config.json -o nns/nns_contract.nef
-/home/user/go/bin/cli contract compile -i neofs -c neofs/config.yml -m neofs/config.json -o neofs/neofs_contract.nef
+/home/user/go/bin/cli contract compile -i frostfs -c frostfs/config.yml -m frostfs/config.json -o frostfs/frostfs_contract.nef
 /home/user/go/bin/cli contract compile -i processing -c processing/config.yml -m processing/config.json -o processing/processing_contract.nef
 ```
 
@@ -69,29 +67,24 @@ $ NEOGO=/home/user/neo-go/bin/neo-go make all
 
 Remove compiled files with `make clean` or `make mr_proper` command.
 
+## Building Debian package
+
+To build Debian package containing compiled contracts, run `make debpackage`
+command. Package will install compiled contracts `*_contract.nef` and manifest 
+`config.json` with corresponding directories to `/var/lib/neofs/contract` for 
+further usage.
+It will download and build neo-go, if needed.
+
+To clean package-related files, use `make debclean`.
+
 # Testing
 Smartcontract tests reside in `tests/` directory. To execute test suite
 after applying changes, simply run `make test`.
 ```
 $ make test
-ok      github.com/nspcc-dev/neofs-contract/tests       0.462s
+ok      git.frostfs.info/TrueCloudLab/frostfs-contract/tests       0.462s
 ```
 
-# NeoFS API compatibility
-
-| neofs-contract version |                                                                                           supported NeoFS API versions                                                                                           |
-|:----------------------:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|
-|         v0.9.x         |                                    [v2.7.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.7.0), [v2.8.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.8.0)                                    |
-|        v0.10.x         |                                    [v2.7.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.7.0), [v2.8.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.8.0)                                    |
-|        v0.11.x         | [v2.7.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.7.0), [v2.8.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.8.0), [v2.9.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.9.0) |
-|        v0.12.x         |                                                                      [v2.10.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.10.0)                                                                      |
-|        v0.13.x         |                                                                      [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0)                                                                      |
-|        v0.14.x         |                                                                      [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0)                                                                      |
-|        v0.15.x         |                                  [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0), [v2.12.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.12.0)                                  |
-|        v0.15.x         |                                  [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0), [v2.12.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.12.0)                                  |
-|        v0.16.x         |                                                                      [v2.14.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.14.0)                                                                      |
-
-
 # License
 
 This project is licensed under the GPLv3 License - see the 

VERSION

@@ -1 +1 @@
-v0.16.0
+v0.20.0

alphabet/alphabet_contract.go

@@ -1,15 +1,14 @@
 package alphabet
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
 )
 
 const (
@@ -19,29 +18,27 @@ const (
 	indexKey = "index"
 	totalKey = "threshold"
 	nameKey  = "name"
-
-	notaryDisabledKey = "notary"
 )
 
 // OnNEP17Payment is a callback for NEP-17 compatible native GAS and NEO
 // contracts.
-func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
+func OnNEP17Payment(from interop.Hash160, amount int, data any) {
 	caller := runtime.GetCallingScriptHash()
 	if !common.BytesEqual(caller, []byte(gas.Hash)) && !common.BytesEqual(caller, []byte(neo.Hash)) {
 		common.AbortWithMessage("alphabet contract accepts GAS and NEO only")
 	}
 }
 
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	ctx := storage.GetContext()
+
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
 
 	args := data.(struct {
-		notaryDisabled bool
 		addrNetmap interop.Hash160
 		addrProxy  interop.Hash160
 		name       string
@@ -49,7 +46,7 @@ func _deploy(data interface{}, isUpdate bool) {
 		total      int
 	})
 
-	if len(args.addrNetmap) != interop.Hash160Len || !args.notaryDisabled && len(args.addrProxy) != interop.Hash160Len {
+	if len(args.addrNetmap) != interop.Hash160Len || len(args.addrProxy) != interop.Hash160Len {
 		panic("incorrect length of contract script hash")
 	}
 
@@ -59,25 +56,17 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, indexKey, args.index)
 	storage.Put(ctx, totalKey, args.total)
 
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.InitVote(ctx)
-		runtime.Log(args.name + " notary disabled")
-	}
-
 	runtime.Log(args.name + " contract initialized")
 }
 
 // Update method updates contract source code and manifest. It can be invoked
 // only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	if !common.HasUpdateAccess() {
 		panic("only committee can update contract")
 	}
 
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-		contract.All, script, manifest, common.AppendVersion(data))
 	runtime.Log("alphabet contract updated")
 }
 
@@ -120,15 +109,11 @@ func checkPermission(ir []interop.PublicKey) bool {
 // and proxy contract. It can be invoked only by an Alphabet node of the Inner Ring.
 //
 // To produce GAS, an alphabet contract transfers all available NEO from the contract
-// account to itself. If notary is enabled, 50% of the GAS in the contract account
+// account to itself. 50% of the GAS in the contract account
 // are transferred to proxy contract. 43.75% of the GAS are equally distributed
 // among all Inner Ring nodes. Remaining 6.25% of the GAS stay in the contract.
-//
-// If notary is disabled, 87.5% of the GAS are equally distributed among all
-// Inner Ring nodes. Remaining 12.5% of the GAS stay in the contract.
 func Emit() {
 	ctx := storage.GetReadOnlyContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
 	alphabet := common.AlphabetNodes()
 	if !checkPermission(alphabet) {
@@ -143,7 +128,6 @@ func Emit() {
 
 	gasBalance := gas.BalanceOf(contractHash)
 
-	if !notaryDisabled {
 	proxyAddr := storage.Get(ctx, proxyKey).(interop.Hash160)
 
 	proxyGas := gasBalance / 2
@@ -158,16 +142,8 @@ func Emit() {
 	gasBalance -= proxyGas
 
 	runtime.Log("utility token has been emitted to proxy contract")
-	}
 
-	var innerRing []interop.PublicKey
+	innerRing := common.InnerRingNodes()
-
-	if notaryDisabled {
-		netmapContract := storage.Get(ctx, netmapKey).(interop.Hash160)
-		innerRing = common.InnerRingNodesFromNetmap(netmapContract)
-	} else {
-		innerRing = common.InnerRingNodes()
-	}
 
 	gasPerNode := gasBalance * 7 / 8 / len(innerRing)
 
@@ -192,25 +168,10 @@ func Emit() {
 // alphabet contracts) should vote for a new committee.
 func Vote(epoch int, candidates []interop.PublicKey) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 	index := index(ctx)
 	name := name(ctx)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("invalid invoker")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	curEpoch := currentEpoch(ctx)
 	if epoch != curEpoch {
@@ -220,18 +181,6 @@ func Vote(epoch int, candidates []interop.PublicKey) {
 	candidate := candidates[index%len(candidates)]
 	address := runtime.GetExecutingScriptHash()
 
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := voteID(epoch, candidates)
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
 	ok := neo.Vote(address, candidate)
 	if ok {
 		runtime.Log(name + ": successfully voted for validator")
@@ -240,21 +189,6 @@ func Vote(epoch int, candidates []interop.PublicKey) {
 	}
 }
 
-func voteID(epoch interface{}, args []interop.PublicKey) []byte {
-	var (
-		result     []byte
-		epochBytes = epoch.([]byte)
-	)
-
-	result = append(result, epochBytes...)
-
-	for i := range args {
-		result = append(result, args[i]...)
-	}
-
-	return crypto.Sha256(result)
-}
-
 // Name returns the Glagolitic name of the contract.
 func Name() string {
 	ctx := storage.GetReadOnlyContext()

alphabet/config.yml

@@ -1,4 +1,4 @@
-name: "NeoFS Alphabet"
+name: "Alphabet"
 safemethods: ["gas", "neo", "name", "version"]
 permissions:
   - methods: ["update", "transfer", "vote"]

alphabet/doc.go

@@ -1,5 +1,5 @@
 /*
-Alphabet contract is a contract deployed in NeoFS sidechain.
+Alphabet contract is a contract deployed in FrostFS sidechain.
 
 Alphabet contract is designed to support GAS production and vote for new
 validators in the sidechain. NEO token is required to produce GAS and vote for
@@ -14,8 +14,18 @@ one of the alphabetical contracts to emit GAS. To vote for a new list of side
 chain committee, alphabet nodes of the Inner Ring create multisignature transactions
 for each alphabet contract.
 
-Contract notifications
+# Contract notifications
 
 Alphabet contract does not produce notifications to process.
+
+# Contract storage scheme
+
+	|   Key              | Value      |           Description                           |
+	|--------------------|------------|-------------------------------------------------|
+	| `netmapScriptHash` | Hash160    | netmap contract hash                            |
+	| `proxyScriptHash`  | Hash160    | proxy contract hash                             |
+	| `name`             | string     | assigned glagolitic letter                      |
+	| `index`            | int        | the index of deployed alphabet contract         |
+	| `threshold`        | int        | the total number of deployed alphabet contracts |
 */
 package alphabet

audit/audit_contract.go

@@ -1,239 +0,0 @@
-package audit
-
-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/iterator"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
-	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
-	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
-)
-
-type (
-	auditHeader struct {
-		epoch int
-		cid   []byte
-		from  interop.PublicKey
-	}
-)
-
-// Audit key is a combination of the epoch, the container ID and the public key of the node that
-// has executed the audit. Together, it shouldn't be more than 64 bytes. We can't shrink
-// epoch and container ID since we iterate over these values. But we can shrink
-// public key by using first bytes of the hashed value.
-
-// V2 format
-const maxKeySize = 24 // 24 + 32 (container ID length) + 8 (epoch length) = 64
-
-func (a auditHeader) ID() []byte {
-	var buf interface{} = a.epoch
-
-	hashedKey := crypto.Sha256(a.from)
-	shortedKey := hashedKey[:maxKeySize]
-
-	return append(buf.([]byte), append(a.cid, shortedKey...)...)
-}
-
-const (
-	netmapContractKey = "netmapScriptHash"
-
-	notaryDisabledKey = "notary"
-)
-
-func _deploy(data interface{}, isUpdate bool) {
-	ctx := storage.GetContext()
-	if isUpdate {
-		args := data.([]interface{})
-		common.CheckVersion(args[len(args)-1].(int))
-		return
-	}
-
-	args := data.(struct {
-		notaryDisabled bool
-		addrNetmap     interop.Hash160
-	})
-
-	if len(args.addrNetmap) != interop.Hash160Len {
-		panic("incorrect length of contract script hash")
-	}
-
-	storage.Put(ctx, netmapContractKey, args.addrNetmap)
-
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		runtime.Log("audit contract notary disabled")
-	}
-
-	runtime.Log("audit contract initialized")
-}
-
-// Update method updates contract source code and manifest. It can be invoked
-// only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
-	if !common.HasUpdateAccess() {
-		panic("only committee can update contract")
-	}
-
-	contract.Call(interop.Hash160(management.Hash), "update",
-		contract.All, script, manifest, common.AppendVersion(data))
-	runtime.Log("audit contract updated")
-}
-
-// Put method stores a stable marshalled `DataAuditResult` structure. It can be
-// invoked only by Inner Ring nodes.
-//
-// Inner Ring nodes perform audit of containers and produce `DataAuditResult`
-// structures. They are stored in audit contract and used for settlements
-// in later epochs.
-func Put(rawAuditResult []byte) {
-	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var innerRing []interop.PublicKey
-
-	if notaryDisabled {
-		netmapContract := storage.Get(ctx, netmapContractKey).(interop.Hash160)
-		innerRing = common.InnerRingNodesFromNetmap(netmapContract)
-	} else {
-		innerRing = common.InnerRingNodes()
-	}
-
-	hdr := newAuditHeader(rawAuditResult)
-	presented := false
-
-	for i := range innerRing {
-		ir := innerRing[i]
-		if common.BytesEqual(ir, hdr.from) {
-			presented = true
-
-			break
-		}
-	}
-
-	if !runtime.CheckWitness(hdr.from) || !presented {
-		panic("put access denied")
-	}
-
-	storage.Put(ctx, hdr.ID(), rawAuditResult)
-
-	runtime.Log("audit: result has been saved")
-}
-
-// Get method returns a stable marshaled DataAuditResult structure.
-//
-// The ID of the DataAuditResult can be obtained from listing methods.
-func Get(id []byte) []byte {
-	ctx := storage.GetReadOnlyContext()
-	return storage.Get(ctx, id).([]byte)
-}
-
-// List method returns a list of all available DataAuditResult IDs from
-// the contract storage.
-func List() [][]byte {
-	ctx := storage.GetReadOnlyContext()
-	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
-
-	return list(it)
-}
-
-// ListByEpoch method returns a list of DataAuditResult IDs generated during
-// the specified epoch.
-func ListByEpoch(epoch int) [][]byte {
-	ctx := storage.GetReadOnlyContext()
-	var buf interface{} = epoch
-	it := storage.Find(ctx, buf.([]byte), storage.KeysOnly)
-
-	return list(it)
-}
-
-// ListByCID method returns a list of DataAuditResult IDs generated during
-// the specified epoch for the specified container.
-func ListByCID(epoch int, cid []byte) [][]byte {
-	ctx := storage.GetReadOnlyContext()
-
-	var buf interface{} = epoch
-
-	prefix := append(buf.([]byte), cid...)
-	it := storage.Find(ctx, prefix, storage.KeysOnly)
-
-	return list(it)
-}
-
-// ListByNode method returns a list of DataAuditResult IDs generated in
-// the specified epoch for the specified container by the specified Inner Ring node.
-func ListByNode(epoch int, cid []byte, key interop.PublicKey) [][]byte {
-	ctx := storage.GetReadOnlyContext()
-	hdr := auditHeader{
-		epoch: epoch,
-		cid:   cid,
-		from:  key,
-	}
-
-	it := storage.Find(ctx, hdr.ID(), storage.KeysOnly)
-
-	return list(it)
-}
-
-func list(it iterator.Iterator) [][]byte {
-	var result [][]byte
-
-	ignore := [][]byte{
-		[]byte(netmapContractKey),
-		[]byte(notaryDisabledKey),
-	}
-
-loop:
-	for iterator.Next(it) {
-		key := iterator.Value(it).([]byte) // iterator MUST BE `storage.KeysOnly`
-		for _, ignoreKey := range ignore {
-			if common.BytesEqual(key, ignoreKey) {
-				continue loop
-			}
-		}
-
-		result = append(result, key)
-	}
-
-	return result
-}
-
-// Version returns the version of the contract.
-func Version() int {
-	return common.Version
-}
-
-// readNext reads the length from the first byte, and then reads data (max 127 bytes).
-func readNext(input []byte) ([]byte, int) {
-	var buf interface{} = input[0]
-	ln := buf.(int)
-
-	return input[1 : 1+ln], 1 + ln
-}
-
-func newAuditHeader(input []byte) auditHeader {
-	// V2 format
-	offset := int(input[1])
-	offset = 2 + offset + 1 // version prefix + version len + epoch prefix
-
-	var buf interface{} = input[offset : offset+8] // [ 8 integer bytes ]
-	epoch := buf.(int)
-
-	offset = offset + 8
-
-	// cid is a nested structure with raw bytes
-	// [ cid struct prefix (wireType + len = 2 bytes), cid value wireType (1 byte), ... ]
-	cid, cidOffset := readNext(input[offset+2+1:])
-
-	// key is a raw byte
-	// [ public key wireType (1 byte), ... ]
-	key, _ := readNext(input[offset+2+1+cidOffset+1:])
-
-	return auditHeader{
-		epoch,
-		cid,
-		key,
-	}
-}

audit/config.yml

@@ -1,4 +0,0 @@
-name: "NeoFS Audit"
-safemethods: ["get", "list", "listByEpoch", "listByCID", "listByNode", "version"]
-permissions:
-  - methods: ["update"]

audit/doc.go

@@ -1,22 +0,0 @@
-/*
-Audit contract is a contract deployed in NeoFS sidechain.
-
-Inner Ring nodes perform audit of the registered containers during every epoch.
-If a container contains StorageGroup objects, an Inner Ring node initializes
-a series of audit checks. Based on the results of these checks, the Inner Ring
-node creates a DataAuditResult structure for the container. The content of this
-structure makes it possible to determine which storage nodes have been examined and
-see the status of these checks. Regarding this information, the container owner is
-charged for data storage.
-
-Audit contract is used as a reliable and verifiable storage for all
-DataAuditResult structures. At the end of data audit routine, Inner Ring
-nodes send a stable marshaled version of the DataAuditResult structure to the
-contract. When Alphabet nodes of the Inner Ring perform settlement operations,
-they make a list and get these AuditResultStructures from the audit contract.
-
-Contract notifications
-
-Audit contract does not produce notifications to process.
-*/
-package audit

balance/balance_contract.go

@@ -1,14 +1,13 @@
 package balance
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/iterator"
 	"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/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
 )
 
 type (
@@ -22,7 +21,7 @@ type (
 		CirculationKey string
 	}
 
-	// Account structure stores metadata of each NeoFS balance account.
+	// Account structure stores metadata of each FrostFS balance account.
 	Account struct {
 		// Active balance
 		Balance int
@@ -32,16 +31,22 @@ type (
 		// account wasn't burnt.
 		Parent []byte
 	}
+
+	// account is a stored view of Account with fixed int size
+	account struct {
+		Balance []byte
+		Until   []byte
+		Parent  []byte
+	}
 )
 
 const (
-	symbol      = "NEOFS"
+	symbol      = "FROSTFS"
 	decimals    = 12
 	circulation = "MainnetGAS"
 
 	netmapContractKey    = "netmapScriptHash"
 	containerContractKey = "containerScriptHash"
-	notaryDisabledKey    = "notary"
 )
 
 var token Token
@@ -58,16 +63,16 @@ func init() {
 	token = createToken()
 }
 
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	ctx := storage.GetContext()
+
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
 
 	args := data.(struct {
-		notaryDisabled bool
 		addrNetmap    interop.Hash160
 		addrContainer interop.Hash160
 	})
@@ -79,64 +84,56 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, netmapContractKey, args.addrNetmap)
 	storage.Put(ctx, containerContractKey, args.addrContainer)
 
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.InitVote(ctx)
-		runtime.Log("balance contract notary disabled")
-	}
-
 	runtime.Log("balance contract initialized")
 }
 
 // Update method updates contract source code and manifest. It can be invoked
 // only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	if !common.HasUpdateAccess() {
 		panic("only committee can update contract")
 	}
 
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-		contract.All, script, manifest, common.AppendVersion(data))
 	runtime.Log("balance contract updated")
 }
 
-// Symbol is a NEP-17 standard method that returns NEOFS token symbol.
+// Symbol is a NEP-17 standard method that returns FROSTFS token symbol.
 func Symbol() string {
 	return token.Symbol
 }
 
-// Decimals is a NEP-17 standard method that returns precision of NeoFS
+// Decimals is a NEP-17 standard method that returns precision of FrostFS
 // balances.
 func Decimals() int {
 	return token.Decimals
 }
 
 // TotalSupply is a NEP-17 standard method that returns total amount of main
-// chain GAS in NeoFS network.
+// chain GAS in FrostFS network.
 func TotalSupply() int {
 	ctx := storage.GetReadOnlyContext()
 	return token.getSupply(ctx)
 }
 
-// BalanceOf is a NEP-17 standard method that returns NeoFS balance of the specified
+// BalanceOf is a NEP-17 standard method that returns FrostFS balance of the specified
 // account.
 func BalanceOf(account interop.Hash160) int {
 	ctx := storage.GetReadOnlyContext()
 	return token.balanceOf(ctx, account)
 }
 
-// Transfer is a NEP-17 standard method that transfers NeoFS balance from one
+// Transfer is a NEP-17 standard method that transfers FrostFS balance from one
 // account to another. It can be invoked only by the account owner.
 //
 // It produces Transfer and TransferX notifications. TransferX notification
 // will have empty details field.
-func Transfer(from, to interop.Hash160, amount int, data interface{}) bool {
+func Transfer(from, to interop.Hash160, amount int, data any) bool {
 	ctx := storage.GetContext()
 	return token.transfer(ctx, from, to, amount, false, nil)
 }
 
-// TransferX is a method for NeoFS balance to be transferred from one account to
+// TransferX is a method for FrostFS balance to be transferred from one account to
 // another. It can be invoked by the account owner or by Alphabet nodes.
 //
 // It produces Transfer and TransferX notifications.
@@ -146,42 +143,8 @@ func Transfer(from, to interop.Hash160, amount int, data interface{}) bool {
 // Inner Ring with multisignature.
 func TransferX(from, to interop.Hash160, amount int, details []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet     []interop.PublicKey
-		nodeKey      []byte
-		indirectCall bool
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked from inner ring")
-		}
-
-		indirectCall = common.FromKnownContract(
-			ctx,
-			runtime.GetCallingScriptHash(),
-			containerContractKey,
-		)
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled && !indirectCall {
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{from, to, amount}, []byte("transfer"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
 
 	result := token.transfer(ctx, from, to, amount, true, details)
 	if !result {
@@ -197,27 +160,12 @@ func TransferX(from, to interop.Hash160, amount int, details []byte) {
 // It produces Lock, Transfer and TransferX notifications.
 //
 // Lock method is invoked by Alphabet nodes of the Inner Ring when they process
-// Withdraw notification from NeoFS contract. This should transfer assets
+// Withdraw notification from FrostFS contract. This should transfer assets
 // to a new lock account that won't be used for anything beside Unlock and Burn.
 func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked from inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	details := common.LockTransferDetails(txDetails)
 
@@ -227,19 +175,7 @@ func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 		Parent:  from,
 	}
 
-	if notaryDisabled {
+	setAccount(ctx, to, lockAccount)
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{txDetails}, []byte("lock"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
-	common.SetSerialized(ctx, to, lockAccount)
 
 	result := token.transfer(ctx, from, to, amount, true, details)
 	if !result {
@@ -258,21 +194,8 @@ func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 // It produces Transfer and TransferX notifications.
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	if notaryDisabled {
+	common.CheckAlphabetWitness()
-		indirectCall := common.FromKnownContract(
-			ctx,
-			runtime.GetCallingScriptHash(),
-			netmapContractKey,
-		)
-		if !indirectCall {
-			panic("this method must be invoked from inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
 	for iterator.Next(it) {
@@ -300,43 +223,16 @@ func NewEpoch(epochNum int) {
 // It produces Mint, Transfer and TransferX notifications.
 //
 // Mint method is invoked by Alphabet nodes of the Inner Ring when they process
-// Deposit notification from NeoFS contract. Before that, Alphabet nodes should
+// Deposit notification from FrostFS contract. Before that, Alphabet nodes should
 // synchronize precision of mainchain GAS contract and Balance contract.
-// Mint increases total supply of NEP-17 compatible NeoFS token.
+// Mint increases total supply of NEP-17 compatible FrostFS token.
 func Mint(to interop.Hash160, amount int, txDetails []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked from inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	details := common.MintTransferDetails(txDetails)
 
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{txDetails}, []byte("mint"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
 	ok := token.transfer(ctx, nil, to, amount, true, details)
 	if !ok {
 		panic("can't transfer assets")
@@ -355,45 +251,18 @@ func Mint(to interop.Hash160, amount int, txDetails []byte) {
 // It produces Burn, Transfer and TransferX notifications.
 //
 // Burn method is invoked by Alphabet nodes of the Inner Ring when they process
-// Cheque notification from NeoFS contract. It means that locked assets have been
+// Cheque notification from FrostFS contract. It means that locked assets have been
 // transferred to the user in the mainchain, therefore the lock account should be destroyed.
 // Before that, Alphabet nodes should synchronize precision of mainchain GAS
 // contract and Balance contract. Burn decreases total supply of NEP-17
-// compatible NeoFS token.
+// compatible FrostFS token.
 func Burn(from interop.Hash160, amount int, txDetails []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked from inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	details := common.BurnTransferDetails(txDetails)
 
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{txDetails}, []byte("burn"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
 	ok := token.transfer(ctx, from, nil, amount, true, details)
 	if !ok {
 		panic("can't transfer assets")
@@ -443,14 +312,14 @@ func (t Token) transfer(ctx storage.Context, from, to interop.Hash160, amount in
 			storage.Delete(ctx, from)
 		} else {
 			amountFrom.Balance = amountFrom.Balance - amount // neo-go#953
-			common.SetSerialized(ctx, from, amountFrom)
+			setAccount(ctx, from, amountFrom)
 		}
 	}
 
 	if len(to) == 20 {
 		amountTo := getAccount(ctx, to)
 		amountTo.Balance = amountTo.Balance + amount // neo-go#953
-		common.SetSerialized(ctx, to, amountTo)
+		setAccount(ctx, to, amountTo)
 	}
 
 	runtime.Notify("Transfer", from, to, amount)
@@ -461,9 +330,7 @@ func (t Token) transfer(ctx storage.Context, from, to interop.Hash160, amount in
 
 // canTransfer returns the amount it can transfer.
 func (t Token) canTransfer(ctx storage.Context, from, to interop.Hash160, amount int, innerRing bool) (Account, bool) {
-	var (
+	emptyAcc := Account{}
-		emptyAcc = Account{}
-	)
 
 	if !innerRing {
 		if len(to) != interop.Hash160Len || !isUsableAddress(from) {
@@ -501,11 +368,24 @@ func isUsableAddress(addr interop.Hash160) bool {
 	return false
 }
 
-func getAccount(ctx storage.Context, key interface{}) Account {
+func getAccount(ctx storage.Context, key any) Account {
 	data := storage.Get(ctx, key)
 	if data != nil {
-		return std.Deserialize(data.([]byte)).(Account)
+		acc := std.Deserialize(data.([]byte)).(account)
+		return Account{
+			Balance: common.FromFixedWidth64(acc.Balance),
+			Until:   common.FromFixedWidth64(acc.Until),
+			Parent:  acc.Parent,
+		}
 	}
 
 	return Account{}
 }
+
+func setAccount(ctx storage.Context, key any, acc Account) {
+	common.SetSerialized(ctx, key, account{
+		Balance: common.ToFixedWidth64(acc.Balance),
+		Until:   common.ToFixedWidth64(acc.Until),
+		Parent:  acc.Parent,
+	})
+}

balance/config.yml

@@ -1,6 +1,11 @@
-name: "NeoFS Balance"
+name: "Balance"
 supportedstandards: ["NEP-17"]
-safemethods: ["balanceOf", "decimals", "symbol", "totalSupply", "version"]
+safemethods:
+  - "balanceOf"
+  - "decimals"
+  - "symbol"
+  - "totalSupply"
+  - "version"
 permissions:
   - methods: ["update"]
 events:

balance/doc.go

@@ -1,7 +1,7 @@
 /*
-Balance contract is a contract deployed in NeoFS sidechain.
+Balance contract is a contract deployed in FrostFS sidechain.
 
-Balance contract stores all NeoFS account balances. It is a NEP-17 compatible
+Balance contract stores all FrostFS account balances. It is a NEP-17 compatible
 contract, so it can be tracked and controlled by N3 compatible network
 monitors and wallet software.
 
@@ -10,12 +10,12 @@ data audit settlements or container fee payments. It is inefficient to make such
 small payment transactions in the mainchain. To process small transfers, balance
 contract has higher (12) decimal precision than native GAS contract.
 
-NeoFS balances are synchronized with mainchain operations. Deposit produces
+FrostFS balances are synchronized with mainchain operations. Deposit produces
-minting of NEOFS tokens in Balance contract. Withdraw locks some NEOFS tokens
+minting of FROSTFS tokens in Balance contract. Withdraw locks some FROSTFS tokens
-in a special lock account. When NeoFS contract transfers GAS assets back to the
+in a special lock account. When FrostFS contract transfers GAS assets back to the
 user, the lock account is destroyed with burn operation.
 
-Contract notifications
+# Contract notifications
 
 Transfer notification. This is a NEP-17 standard notification.
 
@@ -41,9 +41,9 @@ TransferX notification. This is an enhanced transfer notification with details.
 
 Lock notification. This notification is produced when a lock account is
 created. It contains information about the mainchain transaction that has produced
-the asset lock, the address of the lock account and the NeoFS epoch number until which the
+the asset lock, the address of the lock account and the FrostFS epoch number until which the
 lock account is valid. Alphabet nodes of the Inner Ring catch notification and initialize
-Cheque method invocation of NeoFS contract.
+Cheque method invocation of FrostFS contract.
 
 	Lock:
 	  - name: txID
@@ -66,14 +66,21 @@ replenished from deposit in the mainchain.
 	 - name: amount
 	   type: Integer
 
-
 Burn notification. This notification is produced after user balance is reduced
-when NeoFS contract has transferred GAS assets back to the user.
+when FrostFS contract has transferred GAS assets back to the user.
 
 	Burn:
 	  - name: from
 	    type: Hash160
 	  - name: amount
 	    type: Integer
+
+# Contract storage scheme
+
+	|   Key                 | Value      |           Description            |
+	|-----------------------|------------|----------------------------------|
+	| `netmapScriptHash`    | Hash160    | netmap contract hash             |
+	| `containerScriptHash` | Hash160    | container contract hash          |
+	| circulationKey        | int        | the token circulation key value  |
 */
 package balance

common/common.go

@@ -0,0 +1,11 @@
+package common
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/interop/util"
+)
+
+// BytesEqual compares two slices of bytes by wrapping them into strings,
+// which is necessary with new util.Equals interop behaviour, see neo-go#1176.
+func BytesEqual(a []byte, b []byte) bool {
+	return util.Equals(string(a), string(b))
+}

common/ir.go

@@ -6,28 +6,12 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
-	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 )
 
 type IRNode struct {
 	PublicKey interop.PublicKey
 }
 
-const irListMethod = "innerRingList"
-
-// InnerRingInvoker returns the public key of the inner ring node that has invoked the contract.
-// Work around for environments without notary support.
-func InnerRingInvoker(ir []interop.PublicKey) interop.PublicKey {
-	for i := 0; i < len(ir); i++ {
-		node := ir[i]
-		if runtime.CheckWitness(node) {
-			return node
-		}
-	}
-
-	return nil
-}
-
 // InnerRingNodes return a list of inner ring nodes from state validator role
 // in the sidechain.
 func InnerRingNodes() []interop.PublicKey {
@@ -35,38 +19,26 @@ func InnerRingNodes() []interop.PublicKey {
 	return roles.GetDesignatedByRole(roles.NeoFSAlphabet, uint32(blockHeight+1))
 }
 
-// InnerRingNodesFromNetmap gets a list of inner ring nodes through
-// calling "innerRingList" method of smart contract.
-// Work around for environments without notary support.
-func InnerRingNodesFromNetmap(sc interop.Hash160) []interop.PublicKey {
-	nodes := contract.Call(sc, irListMethod, contract.ReadOnly).([]IRNode)
-	pubs := []interop.PublicKey{}
-	for i := range nodes {
-		pubs = append(pubs, nodes[i].PublicKey)
-	}
-	return pubs
-}
-
 // AlphabetNodes returns a list of alphabet nodes from committee in the sidechain.
 func AlphabetNodes() []interop.PublicKey {
 	return neo.GetCommittee()
 }
 
 // AlphabetAddress returns multi address of alphabet public keys.
-func AlphabetAddress() []byte {
+func AlphabetAddress() interop.Hash160 {
 	alphabet := neo.GetCommittee()
 	return Multiaddress(alphabet, false)
 }
 
 // CommitteeAddress returns multi address of committee.
-func CommitteeAddress() []byte {
+func CommitteeAddress() interop.Hash160 {
 	committee := neo.GetCommittee()
 	return Multiaddress(committee, true)
 }
 
 // Multiaddress returns default multisignature account address for N keys.
 // If committee set to true, it is `M = N/2+1` committee account.
-func Multiaddress(n []interop.PublicKey, committee bool) []byte {
+func Multiaddress(n []interop.PublicKey, committee bool) interop.Hash160 {
 	threshold := len(n)*2/3 + 1
 	if committee {
 		threshold = len(n)/2 + 1

common/storage.go

@@ -1,21 +1,28 @@
 package common
 
 import (
+	"github.com/nspcc-dev/neo-go/pkg/interop/convert"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
 
-func GetList(ctx storage.Context, key interface{}) [][]byte {
-	data := storage.Get(ctx, key)
-	if data != nil {
-		return std.Deserialize(data.([]byte)).([][]byte)
-	}
-
-	return [][]byte{}
-}
-
 // SetSerialized serializes data and puts it into contract storage.
-func SetSerialized(ctx storage.Context, key interface{}, value interface{}) {
+func SetSerialized(ctx storage.Context, key any, value interface{}) {
 	data := std.Serialize(value)
 	storage.Put(ctx, key, data)
 }
+
+// ToFixedWidth64 converts x to bytes such that numbers <= math.MaxUint64
+// have constant with of 9.
+func ToFixedWidth64(x int) []byte {
+	data := convert.ToBytes(x)
+	if x < 0 || len(data) >= 9 {
+		return data
+	}
+	return append(data, make([]byte, 9-len(data))...)
+}
+
+// FromFixedWidth64 is a reverse function for ToFixedWidth64.
+func FromFixedWidth64(x []byte) int {
+	return convert.ToInteger(x)
+}

common/transfer.go

@@ -31,7 +31,7 @@ func LockTransferDetails(txDetails []byte) []byte {
 }
 
 func UnlockTransferDetails(epoch int) []byte {
-	var buf interface{} = epoch
+	var buf any = epoch
 	return append(unlockPrefix, buf.([]byte)...)
 }
 

common/version.go

@@ -4,15 +4,15 @@ import "github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 
 const (
 	major = 0
-	minor = 16
+	minor = 20
 	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 = 15
+	prevMinor = 19
-	prevPatch = 4
+	prevPatch = 3
 
 	Version = major*1_000_000 + minor*1_000 + patch
 
@@ -32,15 +32,15 @@ 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))
 	}
 }
 
 // AppendVersion appends current contract version to the list of deploy arguments.
-func AppendVersion(data interface{}) []interface{} {
+func AppendVersion(data any) []interface{} {
 	if data == nil {
-		return []interface{}{Version}
+		return []any{Version}
 	}
-	return append(data.([]interface{}), Version)
+	return append(data.([]any), Version)
 }

common/vote.go

@@ -1,149 +0,0 @@
-package common
-
-import (
-	"github.com/nspcc-dev/neo-go/pkg/interop"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
-	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neo-go/pkg/interop/util"
-)
-
-type Ballot struct {
-	// ID of the voting decision.
-	ID []byte
-
-	// Public keys of the already voted inner ring nodes.
-	Voters []interop.PublicKey
-
-	// Height of block with the last vote.
-	Height int
-}
-
-const voteKey = "ballots"
-
-const blockDiff = 20 // change base on performance evaluation
-
-func InitVote(ctx storage.Context) {
-	SetSerialized(ctx, voteKey, []Ballot{})
-}
-
-// Vote adds ballot for the decision with a specific 'id' and returns the amount
-// of unique voters for that decision.
-func Vote(ctx storage.Context, id, from []byte) int {
-	var (
-		newCandidates []Ballot
-		candidates    = getBallots(ctx)
-		found         = -1
-		blockHeight   = ledger.CurrentIndex()
-	)
-
-	for i := 0; i < len(candidates); i++ {
-		cnd := candidates[i]
-
-		if blockHeight-cnd.Height > blockDiff {
-			continue
-		}
-
-		if BytesEqual(cnd.ID, id) {
-			voters := cnd.Voters
-
-			for j := range voters {
-				if BytesEqual(voters[j], from) {
-					return len(voters)
-				}
-			}
-
-			voters = append(voters, from)
-			cnd = Ballot{ID: id, Voters: voters, Height: blockHeight}
-			found = len(voters)
-		}
-
-		newCandidates = append(newCandidates, cnd)
-	}
-
-	if found < 0 {
-		voters := []interop.PublicKey{from}
-		newCandidates = append(newCandidates, Ballot{
-			ID:     id,
-			Voters: voters,
-			Height: blockHeight})
-		found = 1
-	}
-
-	SetSerialized(ctx, voteKey, newCandidates)
-
-	return found
-}
-
-// RemoveVotes clears ballots of the decision that has been accepted by
-// inner ring nodes.
-func RemoveVotes(ctx storage.Context, id []byte) {
-	var (
-		candidates = getBallots(ctx)
-		index      int
-	)
-
-	for i := 0; i < len(candidates); i++ {
-		cnd := candidates[i]
-		if BytesEqual(cnd.ID, id) {
-			index = i
-			break
-		}
-	}
-
-	util.Remove(candidates, index)
-	SetSerialized(ctx, voteKey, candidates)
-}
-
-// getBallots returns a deserialized slice of vote ballots.
-func getBallots(ctx storage.Context) []Ballot {
-	data := storage.Get(ctx, voteKey)
-	if data != nil {
-		return std.Deserialize(data.([]byte)).([]Ballot)
-	}
-
-	return []Ballot{}
-}
-
-// BytesEqual compares two slices of bytes by wrapping them into strings,
-// which is necessary with new util.Equals interop behaviour, see neo-go#1176.
-func BytesEqual(a []byte, b []byte) bool {
-	return util.Equals(string(a), string(b))
-}
-
-// InvokeID returns hashed value of prefix and args concatenation. Iy is used to
-// identify different ballots.
-func InvokeID(args []interface{}, prefix []byte) []byte {
-	for i := range args {
-		arg := args[i].([]byte)
-		prefix = append(prefix, arg...)
-	}
-
-	return crypto.Sha256(prefix)
-}
-
-/*
-   Check if the invocation is made from known container or audit contracts.
-   This is necessary because calls from these contracts require to do transfer
-   without signature collection (1 invoke transfer).
-
-   IR1, IR2, IR3, IR4 -(4 invokes)-> [ Container Contract ] -(1 invoke)-> [ Balance Contract ]
-
-   We can do 1 invoke transfer if:
-   - invokation has happened from inner ring node,
-   - it is indirect invocation from another smart-contract.
-
-   However, there is a possible attack, when a malicious inner ring node creates
-   a malicious smart-contract in the morph chain to do indirect call.
-
-   MaliciousIR -(1 invoke)-> [ Malicious Contract ] -(1 invoke)-> [ Balance Contract ]
-
-   To prevent that, we have to allow 1 invoke transfer from authorised well-known
-   smart-contracts, that will be set up at `Init` method.
-*/
-
-func FromKnownContract(ctx storage.Context, caller interop.Hash160, key string) bool {
-	addr := storage.Get(ctx, key).(interop.Hash160)
-	return BytesEqual(caller, addr)
-}

common/witness.go

@@ -16,8 +16,8 @@ var (
 
 // CheckAlphabetWitness checks witness of the passed caller.
 // It panics with ErrAlphabetWitnessFailed message on fail.
-func CheckAlphabetWitness(caller []byte) {
+func CheckAlphabetWitness() {
-	checkWitnessWithPanic(caller, ErrAlphabetWitnessFailed)
+	checkWitnessWithPanic(AlphabetAddress(), ErrAlphabetWitnessFailed)
 }
 
 // CheckOwnerWitness checks witness of the passed caller.

commonclient/invoker.go

@@ -0,0 +1,21 @@
+package commonclient
+
+import (
+	"github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+)
+
+// Invoker is a subset of methods provided by struct invoker.Invoker. The subset contains only those
+// methods that are used by ActorWrapper and clients of the contracts.
+type Invoker interface {
+	Run([]byte) (*result.Invoke, error)
+	Call(contract util.Uint160, method string, params ...any) (*result.Invoke, error)
+	TraverseIterator(sessionID uuid.UUID, iterator *result.Iterator, num int) ([]stackitem.Item, error)
+	TerminateSession(sessionID uuid.UUID) error
+}
+
+// Ensure the interface is compatible with the invoker.Invoker struct.
+var _ Invoker = (*invoker.Invoker)(nil)

commonclient/iterator.go

@@ -0,0 +1,49 @@
+package commonclient
+
+import (
+	"fmt"
+
+	"github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+)
+
+// ReadIteratorItems calls method that returns iterator and traverses the iterator until all items are read into array.
+func ReadIteratorItems(inv Invoker, batchSize int, contract util.Uint160, method string, params ...any) ([]stackitem.Item, error) {
+	if batchSize <= 0 {
+		panic("batch size must be positive")
+	}
+
+	script, err := smartcontract.CreateCallAndPrefetchIteratorScript(contract, method, batchSize, params...)
+	if err != nil {
+		return nil, fmt.Errorf("couldn't create unwrap script: %w", err)
+	}
+
+	arr, sessionID, iter, err := unwrap.ArrayAndSessionIterator(inv.Run(script))
+	if err != nil {
+		return nil, fmt.Errorf("unwrap session iterator: %w", err)
+	}
+	if (sessionID == uuid.UUID{}) {
+		return arr, nil
+	}
+
+	defer func() {
+		_ = inv.TerminateSession(sessionID)
+	}()
+
+	var shouldStop bool
+	res := arr
+	for !shouldStop {
+		items, err := inv.TraverseIterator(sessionID, &iter, batchSize)
+		if err != nil {
+			return nil, err
+		}
+
+		res = append(res, items...)
+		shouldStop = len(items) < batchSize
+	}
+
+	return res, nil
+}

commonclient/transaction.go

@@ -0,0 +1,63 @@
+package commonclient
+
+import (
+	"errors"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/io"
+	"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"
+)
+
+// Transaction allows to invoke several contract method at once.
+type Transaction struct {
+	writer   *io.BufBinWriter
+	buffer   *io.BufBinWriter
+	contract util.Uint160
+}
+
+var ErrTransactionTooLarge = errors.New("transaction/script size limit exceeded")
+
+// NewTransaction creates new transaction to accumulate contract invocations.
+func NewTransaction(contractHash util.Uint160) *Transaction {
+	return &Transaction{
+		writer:   io.NewBufBinWriter(),
+		buffer:   io.NewBufBinWriter(),
+		contract: contractHash,
+	}
+}
+
+// WrapCall accept methods and arguments to invoke.
+// Should be used with method on clients like Client.MethodNameCall.
+func (t Transaction) WrapCall(method string, args []any) error {
+	t.buffer.Reset()
+	emit.AppCall(t.buffer.BinWriter, t.contract, method, callflag.All, args...)
+
+	if t.writer.Len()+t.buffer.Len() > transaction.MaxScriptLength {
+		return ErrTransactionTooLarge
+	}
+
+	t.writer.WriteBytes(t.buffer.Bytes())
+
+	return t.writer.Err
+}
+
+// WrapCallErr accept methods, arguments and error to handle and invoke.
+// Should be used with method on clients like *CallErr.
+func (t Transaction) WrapCallErr(method string, args []any, err error) error {
+	if err != nil {
+		return err
+	}
+
+	return t.WrapCall(method, args)
+}
+
+// Bytes returns the resulting buffer and makes future writes return an error.
+func (t Transaction) Bytes() ([]byte, error) {
+	if t.writer.Len() > transaction.MaxScriptLength {
+		return nil, ErrTransactionTooLarge
+	}
+
+	return t.writer.Bytes(), nil
+}

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)
+	})
+}

container/config.yml

@@ -1,47 +1,35 @@
-name: "NeoFS Container"
+name: "Container"
-safemethods: ["count", "get", "owner", "list", "eACL", "getContainerSize", "listContainerSizes", "version"]
+safemethods:
+  - "count"
+  - "containersOf"
+  - "deletionInfo"
+  - "eACL"
+  - "get"
+  - "getContainerSize"
+  - "iterateContainerSizes"
+  - "list"
+  - "listContainerSizes"
+  - "owner"
+  - "version"
 permissions:
-  - methods: ["update", "addKey", "transferX",
+  - methods:
-               "register", "addRecord", "deleteRecords"]
+    - "addRecord"
+    - "deleteRecords"
+    - "register"
+    - "transferX"
+    - "update"
+
 events:
-  - name: containerPut
-    parameters:
-      - name: container
-        type: ByteArray
-      - name: signature
-        type: Signature
-      - name: publicKey
-        type: PublicKey
-      - name: token
-        type: ByteArray
   - name: PutSuccess
     parameters:
       - name: containerID
         type: Hash256
       - name: publicKey
         type: PublicKey
-  - name: containerDelete
-    parameters:
-      - name: containerID
-        type: ByteArray
-      - name: signature
-        type: Signature
-      - name: token
-        type: ByteArray
   - name: DeleteSuccess
     parameters:
       - name: containerID
         type: ByteArray
-  - name: setEACL
-    parameters:
-      - name: eACL
-        type: ByteArray
-      - name: signature
-        type: Signature
-      - name: publicKey
-        type: PublicKey
-      - name: token
-        type: ByteArray
   - name: SetEACLSuccess
     parameters:
       - name: containerID

container/container_contract.go

@@ -1,6 +1,7 @@
 package container
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/convert"
@@ -10,7 +11,6 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
 )
 
 type (
@@ -44,13 +44,12 @@ type (
 )
 
 const (
-	neofsIDContractKey = "identityScriptHash"
+	frostfsIDContractKey = "identityScriptHash"
 	balanceContractKey   = "balanceScriptHash"
 	netmapContractKey    = "netmapScriptHash"
 	nnsContractKey       = "nnsScriptHash"
 	nnsRootKey           = "nnsRoot"
 	nnsHasAliasKey       = "nnsHasAlias"
-	notaryDisabledKey  = "notary"
 
 	// RegistrationFeeKey is a key in netmap config which contains fee for container registration.
 	RegistrationFeeKey = "ContainerFee"
@@ -62,6 +61,9 @@ const (
 
 	singleEstimatePrefix = "est"
 	estimateKeyPrefix    = "cnr"
+	containerKeyPrefix   = 'x'
+	ownerKeyPrefix       = 'o'
+	graveKeyPrefix       = 'g'
 	estimatePostfixSize  = 10
 	// CleanupDelta contains the number of the last epochs for which container estimations are present.
 	CleanupDelta = 3
@@ -76,28 +78,26 @@ const (
 	// default SOA record field values
 	defaultRefresh = 3600                 // 1 hour
 	defaultRetry   = 600                  // 10 min
-	defaultExpire  = 604800 // 1 week
+	defaultExpire  = 3600 * 24 * 365 * 10 // 10 years
 	defaultTTL     = 3600                 // 1 hour
 )
 
-var (
+var eACLPrefix = []byte("eACL")
-	eACLPrefix = []byte("eACL")
-)
 
 // OnNEP11Payment is needed for registration with contract as the owner to work.
-func OnNEP11Payment(a interop.Hash160, b int, c []byte, d interface{}) {
+func OnNEP11Payment(a interop.Hash160, b int, c []byte, d any) {
 }
 
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	ctx := storage.GetContext()
+
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
 
 	args := data.(struct {
-		notaryDisabled bool
 		addrNetmap  interop.Hash160
 		addrBalance interop.Hash160
 		addrID      interop.Hash160
@@ -113,17 +113,10 @@ func _deploy(data interface{}, isUpdate bool) {
 
 	storage.Put(ctx, netmapContractKey, args.addrNetmap)
 	storage.Put(ctx, balanceContractKey, args.addrBalance)
-	storage.Put(ctx, neofsIDContractKey, args.addrID)
+	storage.Put(ctx, frostfsIDContractKey, args.addrID)
 	storage.Put(ctx, nnsContractKey, args.addrNNS)
 	storage.Put(ctx, nnsRootKey, args.nnsRoot)
 
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.InitVote(ctx)
-		runtime.Log("container contract notary disabled")
-	}
-
 	// add NNS root for container alias domains
 	registerNiceNameTLD(args.addrNNS, args.nnsRoot)
 
@@ -138,7 +131,7 @@ func registerNiceNameTLD(addrNNS interop.Hash160, nnsRoot string) {
 	}
 
 	res := contract.Call(addrNNS, "register", contract.All,
-		nnsRoot, runtime.GetExecutingScriptHash(), "ops@nspcc.ru",
+		nnsRoot, runtime.GetExecutingScriptHash(), "ops@frostfs.info",
 		defaultRefresh, defaultRetry, defaultExpire, defaultTTL).(bool)
 	if !res {
 		panic("can't register NNS TLD")
@@ -147,18 +140,17 @@ func registerNiceNameTLD(addrNNS interop.Hash160, nnsRoot string) {
 
 // Update method updates contract source code and manifest. It can be invoked
 // by committee only.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	if !common.HasUpdateAccess() {
 		panic("only committee can update contract")
 	}
 
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-		contract.All, script, manifest, common.AppendVersion(data))
 	runtime.Log("container contract updated")
 }
 
 // Put method creates a new container if it has been invoked by Alphabet nodes
-// of the Inner Ring. Otherwise, it produces containerPut notification.
+// of the Inner Ring.
 //
 // Container should be a stable marshaled Container structure from API.
 // Signature is a RFC6979 signature of the Container.
@@ -173,13 +165,12 @@ func Put(container []byte, signature interop.Signature, publicKey interop.Public
 // Note that zone must exist.
 func PutNamed(container []byte, signature interop.Signature,
 	publicKey interop.PublicKey, token []byte,
-	name, zone string) {
+	name, zone string,
+) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
 	ownerID := ownerFromBinaryContainer(container)
 	containerID := crypto.Sha256(container)
-	neofsIDContractAddr := storage.Get(ctx, neofsIDContractKey).(interop.Hash160)
 	cnr := Container{
 		value: container,
 		sig:   signature,
@@ -216,26 +207,7 @@ func PutNamed(container []byte, signature interop.Signature,
 		panic("insufficient balance to create container")
 	}
 
-	if notaryDisabled {
+	common.CheckAlphabetWitness()
-		nodeKey := common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			runtime.Notify("containerPut", container, signature, publicKey, token)
-			return
-		}
-
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{container, signature, publicKey}, []byte("put"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 	// todo: check if new container with unique container id
 
 	details := common.ContainerFeeTransferDetails(containerID)
@@ -258,7 +230,7 @@ func PutNamed(container []byte, signature interop.Signature,
 	if name != "" {
 		if needRegister {
 			res := contract.Call(nnsContractAddr, "register", contract.All,
-				domain, runtime.GetExecutingScriptHash(), "ops@nspcc.ru",
+				domain, runtime.GetExecutingScriptHash(), "ops@frostfs.info",
 				defaultRefresh, defaultRetry, defaultExpire, defaultTTL).(bool)
 			if !res {
 				panic("can't register the domain " + domain)
@@ -271,10 +243,6 @@ func PutNamed(container []byte, signature interop.Signature,
 		storage.Put(ctx, key, domain)
 	}
 
-	if len(token) == 0 { // if container created directly without session
-		contract.Call(neofsIDContractAddr, "addKey", contract.All, ownerID, [][]byte{publicKey})
-	}
-
 	runtime.Log("added new container")
 	runtime.Notify("PutSuccess", containerID, publicKey)
 }
@@ -304,44 +272,22 @@ func checkNiceNameAvailable(nnsContractAddr interop.Hash160, domain string) bool
 }
 
 // Delete method removes a container from the contract storage if it has been
-// invoked by Alphabet nodes of the Inner Ring. Otherwise, it produces
+// invoked by Alphabet nodes of the Inner Ring.
-// containerDelete notification.
 //
 // Signature is a RFC6979 signature of the container ID.
 // Token is optional and should be a stable marshaled SessionToken structure from
 // API.
 //
 // If the container doesn't exist, it panics with NotFoundError.
-func Delete(containerID []byte, signature interop.Signature, token []byte) {
+func Delete(containerID []byte, signature interop.Signature, publicKey interop.PublicKey, token []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
 	ownerID := getOwnerByID(ctx, containerID)
 	if ownerID == nil {
 		return
 	}
 
-	if notaryDisabled {
+	common.CheckAlphabetWitness()
-		alphabet := common.AlphabetNodes()
-		nodeKey := common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			runtime.Notify("containerDelete", containerID, signature, token)
-			return
-		}
-
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{containerID, signature}, []byte("delete"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	key := append([]byte(nnsHasAliasKey), containerID...)
 	domain := storage.Get(ctx, key).(string)
@@ -352,7 +298,7 @@ func Delete(containerID []byte, signature interop.Signature, token []byte) {
 		// and inability to delete a container. We should also check if we own the record in case.
 		nnsContractAddr := storage.Get(ctx, nnsContractKey).(interop.Hash160)
 		res := contract.Call(nnsContractAddr, "getRecords", contract.ReadStates|contract.AllowCall, domain, 16 /* TXT */)
-		if res != nil && std.Base58Encode(containerID) == string(res.([]interface{})[0].(string)) {
+		if res != nil && std.Base58Encode(containerID) == string(res.([]any)[0].(string)) {
 			contract.Call(nnsContractAddr, "deleteRecords", contract.All, domain, 16 /* TXT */)
 		}
 	}
@@ -361,6 +307,35 @@ func Delete(containerID []byte, signature interop.Signature, token []byte) {
 	runtime.Notify("DeleteSuccess", containerID)
 }
 
+type DelInfo struct {
+	Owner []byte
+	Epoch int
+}
+
+type delInfo struct {
+	Owner []byte
+	Epoch []byte
+}
+
+// DeletionInfo method returns container deletion info.
+// If the container had never existed, NotFoundError is throwed.
+// It can be used to check whether non-existing container was indeed deleted
+// or does not yet exist at some height.
+func DeletionInfo(containerID []byte) DelInfo {
+	ctx := storage.GetReadOnlyContext()
+	graveKey := append([]byte{graveKeyPrefix}, containerID...)
+	data := storage.Get(ctx, graveKey).([]byte)
+	if data == nil {
+		panic(NotFoundError)
+	}
+
+	d := std.Deserialize(data).(delInfo)
+	return DelInfo{
+		Owner: d.Owner,
+		Epoch: common.FromFixedWidth64(d.Epoch),
+	}
+}
+
 // Get method returns a structure that contains a stable marshaled Container structure,
 // the signature, the public key of the container creator and a stable marshaled SessionToken
 // structure if it was provided.
@@ -391,17 +366,24 @@ func Owner(containerID []byte) []byte {
 func Count() int {
 	count := 0
 	ctx := storage.GetReadOnlyContext()
-	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
+	it := storage.Find(ctx, []byte{containerKeyPrefix}, storage.KeysOnly)
 	for iterator.Next(it) {
-		key := iterator.Value(it).([]byte)
-		// V2 format
-		if len(key) == containerIDSize {
 		count++
 	}
-	}
 	return count
 }
 
+// ContainersOf iterates over all container IDs owned by the specified owner.
+// If owner is nil, it iterates over all containers.
+func ContainersOf(owner []byte) iterator.Iterator {
+	ctx := storage.GetReadOnlyContext()
+	key := []byte{ownerKeyPrefix}
+	if len(owner) != 0 {
+		key = append(key, owner...)
+	}
+	return storage.Find(ctx, key, storage.ValuesOnly)
+}
+
 // List method returns a list of all container IDs owned by the specified owner.
 func List(owner []byte) [][]byte {
 	ctx := storage.GetReadOnlyContext()
@@ -412,7 +394,7 @@ func List(owner []byte) [][]byte {
 
 	var list [][]byte
 
-	it := storage.Find(ctx, owner, storage.ValuesOnly)
+	it := storage.Find(ctx, append([]byte{ownerKeyPrefix}, owner...), storage.ValuesOnly)
 	for iterator.Next(it) {
 		id := iterator.Value(it).([]byte)
 		list = append(list, id)
@@ -422,8 +404,7 @@ func List(owner []byte) [][]byte {
 }
 
 // SetEACL method sets a new extended ACL table related to the contract
-// if it was invoked by Alphabet nodes of the Inner Ring. Otherwise, it produces
+// if it was invoked by Alphabet nodes of the Inner Ring.
-// setEACL notification.
 //
 // EACL should be a stable marshaled EACLTable structure from API.
 // Signature is a RFC6979 signature of the Container.
@@ -434,7 +415,6 @@ func List(owner []byte) [][]byte {
 // If the container doesn't exist, it panics with NotFoundError.
 func SetEACL(eACL []byte, signature interop.Signature, publicKey interop.PublicKey, token []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
 	// V2 format
 	// get container ID
@@ -447,27 +427,7 @@ func SetEACL(eACL []byte, signature interop.Signature, publicKey interop.PublicK
 		panic(NotFoundError)
 	}
 
-	if notaryDisabled {
+	common.CheckAlphabetWitness()
-		alphabet := common.AlphabetNodes()
-		nodeKey := common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			runtime.Notify("setEACL", eACL, signature, publicKey, token)
-			return
-		}
-
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{eACL}, []byte("setEACL"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	rule := ExtendedACL{
 		value: eACL,
@@ -551,11 +511,11 @@ func GetContainerSize(id []byte) containerSizes {
 }
 
 // ListContainerSizes method returns the IDs of container size estimations
-// that has been registered for the specified epoch.
+// that have been registered for the specified epoch.
 func ListContainerSizes(epoch int) [][]byte {
 	ctx := storage.GetReadOnlyContext()
 
-	var buf interface{} = epoch
+	var buf any = epoch
 
 	key := []byte(estimateKeyPrefix)
 	key = append(key, buf.([]byte)...)
@@ -582,25 +542,25 @@ func ListContainerSizes(epoch int) [][]byte {
 	return result
 }
 
+// IterateContainerSizes method returns iterator over container size estimations
+// that have been registered for the specified epoch.
+func IterateContainerSizes(epoch int) iterator.Iterator {
+	ctx := storage.GetReadOnlyContext()
+
+	var buf any = epoch
+
+	key := []byte(estimateKeyPrefix)
+	key = append(key, buf.([]byte)...)
+
+	return storage.Find(ctx, key, storage.DeserializeValues)
+}
+
 // NewEpoch method removes all container size estimations from epoch older than
 // epochNum + 3. It can be invoked only by NewEpoch method of the Netmap contract.
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	if notaryDisabled {
+	common.CheckAlphabetWitness()
-		indirectCall := common.FromKnownContract(
-			ctx,
-			runtime.GetCallingScriptHash(),
-			netmapContractKey,
-		)
-		if !indirectCall {
-			panic("method must be invoked by inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	cleanupContainers(ctx, epochNum)
 }
@@ -608,36 +568,7 @@ func NewEpoch(epochNum int) {
 // StartContainerEstimation method produces StartEstimation notification.
 // It can be invoked only by Alphabet nodes of the Inner Ring.
 func StartContainerEstimation(epoch int) {
-	ctx := storage.GetContext()
+	common.CheckAlphabetWitness()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("method must be invoked by inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{epoch}, []byte("startEstimation"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
 
 	runtime.Notify("StartEstimation", epoch)
 	runtime.Log("notification has been produced")
@@ -646,36 +577,7 @@ func StartContainerEstimation(epoch int) {
 // StopContainerEstimation method produces StopEstimation notification.
 // It can be invoked only by Alphabet nodes of the Inner Ring.
 func StopContainerEstimation(epoch int) {
-	ctx := storage.GetContext()
+	common.CheckAlphabetWitness()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("method must be invoked by inner ring")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{epoch}, []byte("stopEstimation"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
 
 	runtime.Notify("StopEstimation", epoch)
 	runtime.Log("notification has been produced")
@@ -687,30 +589,42 @@ func Version() int {
 }
 
 func addContainer(ctx storage.Context, id, owner []byte, container Container) {
-	containerListKey := append(owner, id...)
+	containerListKey := append([]byte{ownerKeyPrefix}, owner...)
+	containerListKey = append(containerListKey, id...)
 	storage.Put(ctx, containerListKey, id)
 
-	common.SetSerialized(ctx, id, container)
+	idKey := append([]byte{containerKeyPrefix}, id...)
+	common.SetSerialized(ctx, idKey, container)
+
+	graveKey := append([]byte{graveKeyPrefix}, id...)
+	storage.Delete(ctx, graveKey)
 }
 
 func removeContainer(ctx storage.Context, id []byte, owner []byte) {
-	containerListKey := append(owner, id...)
+	containerListKey := append([]byte{ownerKeyPrefix}, owner...)
+	containerListKey = append(containerListKey, id...)
 	storage.Delete(ctx, containerListKey)
 
-	storage.Delete(ctx, id)
+	storage.Delete(ctx, append([]byte{containerKeyPrefix}, id...))
+
+	graveKey := append([]byte{graveKeyPrefix}, id...)
+	netmapContractAddr := storage.Get(ctx, netmapContractKey).(interop.Hash160)
+	epoch := contract.Call(netmapContractAddr, "epoch", contract.ReadOnly).(int)
+	common.SetSerialized(ctx, graveKey, delInfo{
+		Owner: owner,
+		Epoch: common.ToFixedWidth64(epoch),
+	})
 }
 
 func getAllContainers(ctx storage.Context) [][]byte {
 	var list [][]byte
 
-	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
+	it := storage.Find(ctx, []byte{containerKeyPrefix}, storage.KeysOnly|storage.RemovePrefix)
 	for iterator.Next(it) {
 		key := iterator.Value(it).([]byte) // it MUST BE `storage.KeysOnly`
 		// V2 format
-		if len(key) == containerIDSize {
 		list = append(list, key)
 	}
-	}
 
 	return list
 }
@@ -726,7 +640,7 @@ func getEACL(ctx storage.Context, cid []byte) ExtendedACL {
 }
 
 func getContainer(ctx storage.Context, cid []byte) Container {
-	data := storage.Get(ctx, cid)
+	data := storage.Get(ctx, append([]byte{containerKeyPrefix}, cid...))
 	if data != nil {
 		return std.Deserialize(data.([]byte)).(Container)
 	}
@@ -751,7 +665,7 @@ func ownerFromBinaryContainer(container []byte) []byte {
 }
 
 func estimationKey(epoch int, cid []byte, key interop.PublicKey) []byte {
-	var buf interface{} = epoch
+	var buf any = epoch
 
 	hash := crypto.Ripemd160(key)
 
@@ -829,7 +743,7 @@ func cleanupContainers(ctx storage.Context, epoch int) {
 		// V2 format
 		nbytes := k[len(estimateKeyPrefix) : len(k)-containerIDSize-estimatePostfixSize]
 
-		var n interface{} = nbytes
+		var n any = nbytes
 
 		if epoch-n.(int) > TotalCleanupDelta {
 			storage.Delete(ctx, k)

container/doc.go

@@ -1,5 +1,5 @@
 /*
-Container contract is a contract deployed in NeoFS sidechain.
+Container contract is a contract deployed in FrostFS sidechain.
 
 Container contract stores and manages containers, extended ACLs and container
 size estimations. Contract does not perform sanity or signature checks of
@@ -7,48 +7,7 @@ containers or extended ACLs, it is done by Alphabet nodes of the Inner Ring.
 Alphabet nodes approve it by invoking the same Put or SetEACL methods with
 the same arguments.
 
-Contract notifications
+# Contract notifications
-
-containerPut notification. This notification is produced when a user wants to
-create a new container. Alphabet nodes of the Inner Ring catch the notification and
-validate container data, signature and token if present.
-
-  containerPut:
-    - name: container
-      type: ByteArray
-    - name: signature
-      type: Signature
-    - name: publicKey
-      type: PublicKey
-    - name: token
-      type: ByteArray
-
-containerDelete notification. This notification is produced when a container owner
-wants to delete a container. Alphabet nodes of the Inner Ring catch the notification
-and validate container ownership, signature and token if present.
-
-  containerDelete:
-    - name: containerID
-      type: ByteArray
-    - name: signature
-      type: Signature
-    - name: token
-      type: ByteArray
-
-setEACL notification. This notification is produced when a container owner wants
-to update an extended ACL of a container. Alphabet nodes of the Inner Ring catch
-the notification and validate container ownership, signature and token if
-present.
-
-  setEACL:
-    - name: eACL
-      type: ByteArray
-    - name: signature
-      type: Signature
-    - name: publicKey
-      type: PublicKey
-    - name: token
-      type: ByteArray
 
 StartEstimation notification. This notification is produced when Storage nodes
 should exchange estimation values of container sizes among other Storage nodes.
@@ -64,5 +23,20 @@ it in Container contract.
 	StopEstimation:
 	  - name: epoch
 	    type: Integer
+
+# Contract storage scheme
+
+	|   Key                                               | Value      |           Description            |
+	|-----------------------------------------------------------------------------------------------------|
+	| `netmapScriptHash`                                  | Hash160    | netmap contract hash             |
+	| `balanceScriptHash`                                 | Hash160    | balance contract hash            |
+	| `identityScriptHash`                                | Hash160    | frostfsID contract hash          |
+	| `nnsContractKey`                                    | Hash160    | nns contract hash                |
+	| `nnsRoot`                                           | string     | default value for domain zone    |
+	| `cnr` + epoch + containerID + publicKeyHash[:10]    | ByteArray  | estimated container size         |
+	| `est` + containerID + publicKeyHash                 | ByteArray  | serialized epochs array          |
+	| `o` + ownerID + containerID                         | ByteArray  | container ID                     |
+	| `x` + containerID                                   | ByteArray  | serialized container struct      |
+	| `nnsHasAlias` + containerID                         | string     | domain name                      |
 */
 package container

debian/changelog

@@ -0,0 +1,5 @@
+frostfs-contract (0.0.0) stable; urgency=medium
+
+  * Initial release
+
+ -- TrueCloudLab <tech@frostfs.info>  Wed, 24 Aug 2022 18:29:49 +0300

debian/control

@@ -0,0 +1,33 @@
+Source: frostfs-contract
+Section: misc
+Priority: optional
+Maintainer: FrostFS <tech@frostfs.info>
+Build-Depends: debhelper-compat (= 13), git, devscripts, neo-go
+Standards-Version: 4.5.1
+Homepage: https://fs.neo.org/
+Vcs-Git: https://git.frostfs.info/TrueCloudLab/frostfs-contract.git
+Vcs-Browser: https://git.frostfs.info/TrueCloudLab/frostfs-contract
+
+Package: frostfs-contract
+Architecture: all
+Depends: ${misc:Depends}
+Description: FrostFS-Contract contains all FrostFS related contracts.
+ Contracts are written for neo-go compiler.
+ These contracts are deployed both in the mainchain and the sidechain.
+ .
+ Mainchain contracts:
+ .
+ - frostfs
+ - processing
+ .
+ Sidechain contracts:
+ .
+ - alphabet
+ - audit
+ - balance
+ - container
+ - frostfsid
+ - netmap
+ - nns
+ - proxy
+ - reputation

debian/copyright

@@ -0,0 +1,23 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: frostfs-contract
+Upstream-Contact: tech@frostfs.info
+Source: https://git.frostfs.info/TrueCloudLab/frostfs-contract
+
+Files: *
+Copyright: 2022 TrueCloudLab (@TrueCloudLab)
+Copyright: 2018-2022 NeoSPCC (@nspcc-dev)
+
+License: GPL-3
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+ 
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with this program or at /usr/share/common-licenses/GPL-3.
+ If not, see <http://www.gnu.org/licenses/>. 

debian/neofs-contract.docs

@@ -0,0 +1 @@
+README*

debian/postinst.ex

@@ -0,0 +1,39 @@
+#!/bin/sh
+# postinst script for frostfs-contract
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <postinst> `configure' <most-recently-configured-version>
+#        * <old-postinst> `abort-upgrade' <new version>
+#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
+#          <new-version>
+#        * <postinst> `abort-remove'
+#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
+#          <failed-install-package> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    configure)
+    ;;
+
+    abort-upgrade|abort-remove|abort-deconfigure)
+    ;;
+
+    *)
+        echo "postinst called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/postrm.ex

@@ -0,0 +1,37 @@
+#!/bin/sh
+# postrm script for frostfs-contract
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <postrm> `remove'
+#        * <postrm> `purge'
+#        * <old-postrm> `upgrade' <new-version>
+#        * <new-postrm> `failed-upgrade' <old-version>
+#        * <new-postrm> `abort-install'
+#        * <new-postrm> `abort-install' <old-version>
+#        * <new-postrm> `abort-upgrade' <old-version>
+#        * <disappearer's-postrm> `disappear' <overwriter>
+#          <overwriter-version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    ;;
+
+    *)
+        echo "postrm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/preinst.ex

@@ -0,0 +1,35 @@
+#!/bin/sh
+# preinst script for frostfs-contract
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <new-preinst> `install'
+#        * <new-preinst> `install' <old-version>
+#        * <new-preinst> `upgrade' <old-version>
+#        * <old-preinst> `abort-upgrade' <new-version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    install|upgrade)
+    ;;
+
+    abort-upgrade)
+    ;;
+
+    *)
+        echo "preinst called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/prerm.ex

@@ -0,0 +1,38 @@
+#!/bin/sh
+# prerm script for frostfs-contract
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <prerm> `remove'
+#        * <old-prerm> `upgrade' <new-version>
+#        * <new-prerm> `failed-upgrade' <old-version>
+#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
+#        * <deconfigured's-prerm> `deconfigure' `in-favour'
+#          <package-being-installed> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see https://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    remove|upgrade|deconfigure)
+    ;;
+
+    failed-upgrade)
+    ;;
+
+    *)
+        echo "prerm called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0

debian/rules

@@ -0,0 +1,20 @@
+#!/usr/bin/make -f
+
+SERVICE = frostfs-contract
+export NEOGO ?= $(shell command -v neo-go)
+
+%:
+	dh $@
+
+override_dh_auto_build:
+
+		make all
+
+override_dh_auto_install:
+		install -D -m 0750 -d debian/$(SERVICE)/var/lib/frostfs/contract
+		find . -maxdepth 2 \( -name '*.nef' -o -name 'config.json' \) -exec cp --parents \{\} debian/$(SERVICE)/var/lib/frostfs/contract \;
+
+override_dh_installchangelogs:
+		dh_installchangelogs -k CHANGELOG.md
+
+

debian/source/format

@@ -0,0 +1 @@
+3.0 (quilt)

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 @@
+<mxfile host="app.diagrams.net" agent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0" version="24.7.14">
+  <diagram name="Page-1" id="N1NjK5oQ_tQiBXsDL3WT">
+    <mxGraphModel dx="989" dy="917" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="0" pageScale="1" pageWidth="850" pageHeight="1100" math="0" shadow="0">
+      <root>
+        <mxCell id="0" />
+        <mxCell id="1" parent="0" />
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-1" value=".ns" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="130" y="160" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-2" value=".org" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="440" y="160" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-3" value=".sweden" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="250" y="280" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-4" value=".poland" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="10" y="280" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-5" 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" source="l_qLPBR5nCWAv8Wbn5Wl-1" target="l_qLPBR5nCWAv8Wbn5Wl-4">
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+            <mxPoint x="260" y="480" as="sourcePoint" />
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+          </mxGeometry>
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-6" 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" source="l_qLPBR5nCWAv8Wbn5Wl-1" target="l_qLPBR5nCWAv8Wbn5Wl-3">
+          <mxGeometry width="50" height="50" relative="1" as="geometry">
+            <mxPoint x="200" y="230" as="sourcePoint" />
+            <mxPoint x="80" y="290" as="targetPoint" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-7" value="bober" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="10" y="400" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-8" 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" source="l_qLPBR5nCWAv8Wbn5Wl-4" target="l_qLPBR5nCWAv8Wbn5Wl-7">
+          <mxGeometry width="50" height="50" relative="1" as="geometry">
+            <mxPoint x="190" y="450" as="sourcePoint" />
+            <mxPoint x="70" y="390" as="targetPoint" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-9" value="bober" style="rounded=0;whiteSpace=wrap;html=1;dashed=1;strokeColor=#FF6666;" vertex="1" parent="1">
+          <mxGeometry x="250" y="400" width="120" height="60" as="geometry" />
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+            <mxPoint x="310" y="340" as="sourcePoint" />
+            <mxPoint x="310" y="390" as="targetPoint" />
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+        </mxCell>
+        <mxCell id="l_qLPBR5nCWAv8Wbn5Wl-11" value="bober" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
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+</mxfile>

frostfs/config.yml

@@ -1,5 +1,9 @@
-name: "NeoFS"
+name: "FrostFS"
-safemethods: ["alphabetList", "alphabetAddress", "innerRingCandidates", "config", "listConfig", "version"]
+safemethods:
+  - "config"
+  - "innerRingCandidates"
+  - "listConfig"
+  - "version"
 permissions:
   - methods: ["update", "transfer"]
 events:

frostfs/doc.go

@@ -0,0 +1,92 @@
+/*
+FrostFS contract is a contract deployed in FrostFS mainchain.
+
+FrostFS contract is an entry point to FrostFS users. This contract stores all FrostFS
+related GAS, registers new Inner Ring candidates and produces notifications
+to control the sidechain.
+
+While mainchain committee controls the list of Alphabet nodes in native
+RoleManagement contract, FrostFS can't change more than 1\3 keys at a time.
+FrostFS contract contains the actual list of Alphabet nodes in the sidechain.
+
+Network configuration is also stored in FrostFS contract. All changes in
+configuration are mirrored in the sidechain with notifications.
+
+# Contract notifications
+
+Deposit notification. This notification is produced when user transfers native
+GAS to the FrostFS contract address. The same amount of FROSTFS token will be
+minted in Balance contract in the sidechain.
+
+	Deposit:
+	  - name: from
+	    type: Hash160
+	  - name: amount
+	    type: Integer
+	  - name: receiver
+	    type: Hash160
+	  - name: txHash
+	    type: Hash256
+
+Withdraw notification. This notification is produced when a user wants to
+withdraw GAS from the internal FrostFS balance and has paid fee for that.
+
+	Withdraw:
+	  - name: user
+	    type: Hash160
+	  - name: amount
+	    type: Integer
+	  - name: txHash
+	    type: Hash256
+
+Cheque notification. This notification is produced when FrostFS contract
+has successfully transferred assets back to the user after withdraw.
+
+	Cheque:
+	  - name: id
+	    type: ByteArray
+	  - name: user
+	    type: Hash160
+	  - name: amount
+	    type: Integer
+	  - name: lockAccount
+	    type: ByteArray
+
+Bind notification. This notification is produced when a user wants to bind
+public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
+
+	Bind:
+	  - name: user
+	    type: ByteArray
+	  - name: keys
+	    type: Array
+
+Unbind notification. This notification is produced when a user wants to unbind
+public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
+
+	Unbind:
+	  - name: user
+	    type: ByteArray
+	  - name: keys
+	    type: Array
+
+SetConfig notification. This notification is produced when Alphabet nodes update
+FrostFS network configuration value.
+
+	SetConfig
+	  - name: id
+	    type: ByteArray
+	  - name: key
+	    type: ByteArray
+	  - name: value
+	    type: ByteArray
+
+# Contract storage scheme
+
+	|   Key                       | Value      |           Description            |
+	|-----------------------------------------------------------------------------|
+	| `processingScriptHash`      | Hash160    | processing contract hash         |
+	| `candidates` + candidateKey | ByteArray  | it flags inner ring candidate    |
+	| `config` + postfix          | ByteArray  | serialized config data           |
+*/
+package frostfs

frostfs/frostfs_contract.go

@@ -1,18 +1,16 @@
-package neofs
+package frostfs
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/iterator"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
 )
 
 type (
@@ -27,9 +25,7 @@ const (
 	CandidateFeeConfigKey = "InnerRingCandidateFee"
 	withdrawFeeConfigKey  = "WithdrawFee"
 
-	alphabetKey       = "alphabet"
 	candidatesKey = "candidates"
-	notaryDisabledKey = "notary"
 
 	processingContractKey = "processingScriptHash"
 
@@ -40,22 +36,19 @@ const (
 	ignoreDepositNotification = "\x57\x0b"
 )
 
-var (
+var configPrefix = []byte("config")
-	configPrefix = []byte("config")
-)
 
 // _deploy sets up initial alphabet node keys.
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	ctx := storage.GetContext()
 
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
 
 	args := data.(struct {
-		notaryDisabled bool
 		addrProc interop.Hash160
 		keys     []interop.PublicKey
 		config   [][]byte
@@ -76,18 +69,8 @@ func _deploy(data interface{}, isUpdate bool) {
 		}
 	}
 
-	// initialize all storage slices
-	common.SetSerialized(ctx, alphabetKey, args.keys)
-
 	storage.Put(ctx, processingContractKey, args.addrProc)
 
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.InitVote(ctx)
-		runtime.Log("neofs contract notary disabled")
-	}
-
 	ln := len(args.config)
 	if ln%2 != 0 {
 		panic("bad configuration")
@@ -100,40 +83,22 @@ func _deploy(data interface{}, isUpdate bool) {
 		setConfig(ctx, key, val)
 	}
 
-	runtime.Log("neofs: contract initialized")
+	runtime.Log("frostfs: contract initialized")
 }
 
 // Update method updates contract source code and manifest. It can be invoked
 // only by sidechain committee.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	blockHeight := ledger.CurrentIndex()
 	alphabetKeys := roles.GetDesignatedByRole(roles.NeoFSAlphabet, uint32(blockHeight+1))
 	alphabetCommittee := common.Multiaddress(alphabetKeys, true)
 
-	common.CheckAlphabetWitness(alphabetCommittee)
+	if !runtime.CheckWitness(alphabetCommittee) {
-
+		panic(common.ErrAlphabetWitnessFailed)
-	contract.Call(interop.Hash160(management.Hash), "update",
-		contract.All, script, manifest, common.AppendVersion(data))
-	runtime.Log("neofs contract updated")
 	}
 
-// AlphabetList returns an array of alphabet node keys. It is used in sidechain notary
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-// disabled environment.
+	runtime.Log("frostfs contract updated")
-func AlphabetList() []common.IRNode {
-	ctx := storage.GetReadOnlyContext()
-	pubs := getAlphabetNodes(ctx)
-	nodes := []common.IRNode{}
-	for i := range pubs {
-		nodes = append(nodes, common.IRNode{PublicKey: pubs[i]})
-	}
-	return nodes
-}
-
-// AlphabetAddress returns 2\3n+1 multisignature address of alphabet nodes.
-// It is used in sidechain notary disabled environment.
-func AlphabetAddress() interop.Hash160 {
-	ctx := storage.GetReadOnlyContext()
-	return multiaddress(getAlphabetNodes(ctx))
 }
 
 // InnerRingCandidates returns an array of structures that contain an Inner Ring
@@ -156,41 +121,13 @@ func InnerRingCandidates() []common.IRNode {
 // This method does not return fee back to the candidate.
 func InnerRingCandidateRemove(key interop.PublicKey) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
 
 	keyOwner := runtime.CheckWitness(key)
 
 	if !keyOwner {
-		if notaryDisabled {
+		if !runtime.CheckWitness(common.AlphabetAddress()) {
-			alphabet = getAlphabetNodes(ctx)
-			nodeKey = common.InnerRingInvoker(alphabet)
-			if len(nodeKey) == 0 {
 			panic("this method must be invoked by candidate or alphabet")
 		}
-		} else {
-			multiaddr := AlphabetAddress()
-			if !runtime.CheckWitness(multiaddr) {
-				panic("this method must be invoked by candidate or alphabet")
-			}
-		}
-	}
-
-	if notaryDisabled && !keyOwner {
-		threshold := len(alphabet)*2/3 + 1
-		id := append(key, []byte("delete")...)
-		hashID := crypto.Sha256(id)
-
-		n := common.Vote(ctx, hashID, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, hashID)
 	}
 
 	prefix := []byte(candidatesKey)
@@ -205,7 +142,7 @@ func InnerRingCandidateRemove(key interop.PublicKey) {
 // It can be invoked only by the candidate itself.
 //
 // This method transfers fee from a candidate to the contract account.
-// Fee value is specified in NeoFS network config with the key InnerRingCandidateFee.
+// Fee value is specified in FrostFS network config with the key InnerRingCandidateFee.
 func InnerRingCandidateAdd(key interop.PublicKey) {
 	ctx := storage.GetContext()
 
@@ -231,9 +168,9 @@ func InnerRingCandidateAdd(key interop.PublicKey) {
 
 // OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
 // It takes no more than 9000.0 GAS. Native GAS has precision 8, and
-// NeoFS balance contract has precision 12. Values bigger than 9000.0 can
+// FrostFS balance contract has precision 12. Values bigger than 9000.0 can
 // break JSON limits for integers when precision is converted.
-func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
+func OnNEP17Payment(from interop.Hash160, amount int, data any) {
 	rcv := data.(interop.Hash160)
 	if common.BytesEqual(rcv, []byte(ignoreDepositNotification)) {
 		return
@@ -264,13 +201,13 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 	runtime.Notify("Deposit", from, amount, rcv, tx.Hash)
 }
 
-// Withdraw initializes gas asset withdraw from NeoFS. It can be invoked only
+// Withdraw initializes gas asset withdraw from FrostFS. It can be invoked only
 // by the specified user.
 //
 // This method produces Withdraw notification to lock assets in the sidechain and
 // transfers withdraw fee from a user account to each Alphabet node. If notary
 // is enabled in the mainchain, fee is transferred to Processing contract.
-// Fee value is specified in NeoFS network config with the key WithdrawFee.
+// Fee value is specified in FrostFS network config with the key WithdrawFee.
 func Withdraw(user interop.Hash160, amount int) {
 	if !runtime.CheckWitness(user) {
 		panic("you should be the owner of the wallet")
@@ -285,29 +222,16 @@ func Withdraw(user interop.Hash160, amount int) {
 	}
 
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
 	// transfer fee to proxy contract to pay cheque invocation
 	fee := getConfig(ctx, withdrawFeeConfigKey).(int)
 
-	if notaryDisabled {
-		alphabet := getAlphabetNodes(ctx)
-		for _, node := range alphabet {
-			processingAddr := contract.CreateStandardAccount(node)
-
-			transferred := gas.Transfer(user, processingAddr, fee, []byte{})
-			if !transferred {
-				panic("failed to transfer withdraw fee, aborting")
-			}
-		}
-	} else {
 	processingAddr := storage.Get(ctx, processingContractKey).(interop.Hash160)
 
 	transferred := gas.Transfer(user, processingAddr, fee, []byte{})
 	if !transferred {
 		panic("failed to transfer withdraw fee, aborting")
 	}
-	}
 
 	// notify alphabet nodes
 	amount = amount * 100000000
@@ -317,43 +241,15 @@ func Withdraw(user interop.Hash160, amount int) {
 }
 
 // Cheque transfers GAS back to the user from the contract account, if assets were
-// successfully locked in NeoFS balance contract. It can be invoked only by
+// successfully locked in FrostFS balance contract. It can be invoked only by
 // Alphabet nodes.
 //
 // This method produces Cheque notification to burn assets in sidechain.
 func Cheque(id []byte, user interop.Hash160, amount int, lockAcc []byte) {
-	ctx := storage.GetContext()
+	common.CheckAlphabetWitness()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = getAlphabetNodes(ctx)
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked by alphabet")
-		}
-	} else {
-		multiaddr := AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
 
 	from := runtime.GetExecutingScriptHash()
 
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
 	transferred := gas.Transfer(from, user, amount, nil)
 	if !transferred {
 		panic("failed to transfer funds, aborting")
@@ -363,7 +259,7 @@ func Cheque(id []byte, user interop.Hash160, amount int, lockAcc []byte) {
 	runtime.Notify("Cheque", id, user, amount, lockAcc)
 }
 
-// Bind method produces notification to bind the specified public keys in NeoFSID
+// Bind method produces notification to bind the specified public keys in FrostFSID
 // contract in the sidechain. It can be invoked only by specified user.
 //
 // This method produces Bind notification. This method panics if keys are not
@@ -383,7 +279,7 @@ func Bind(user []byte, keys []interop.PublicKey) {
 	runtime.Notify("Bind", user, keys)
 }
 
-// Unbind method produces notification to unbind the specified public keys in NeoFSID
+// Unbind method produces notification to unbind the specified public keys in FrostFSID
 // contract in the sidechain. It can be invoked only by the specified user.
 //
 // This method produces Unbind notification. This method panics if keys are not
@@ -403,102 +299,19 @@ func Unbind(user []byte, keys []interop.PublicKey) {
 	runtime.Notify("Unbind", user, keys)
 }
 
-// AlphabetUpdate updates a list of alphabet nodes with the provided list of
+// Config returns configuration value of FrostFS configuration. If the key does
-// public keys. It can be invoked only by alphabet nodes.
-//
-// This method is used in notary disabled sidechain environment. In this case,
-// the actual alphabet list should be stored in the NeoFS contract.
-func AlphabetUpdate(id []byte, args []interop.PublicKey) {
-	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	if len(args) == 0 {
-		panic("bad arguments")
-	}
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = getAlphabetNodes(ctx)
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked by alphabet")
-		}
-	} else {
-		multiaddr := AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	newAlphabet := []interop.PublicKey{}
-
-	for i := 0; i < len(args); i++ {
-		pubKey := args[i]
-		if len(pubKey) != interop.PublicKeyCompressedLen {
-			panic("invalid public key in alphabet list")
-		}
-
-		newAlphabet = append(newAlphabet, pubKey)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
-	common.SetSerialized(ctx, alphabetKey, newAlphabet)
-
-	runtime.Notify("AlphabetUpdate", id, newAlphabet)
-	runtime.Log("alphabet list has been updated")
-}
-
-// Config returns configuration value of NeoFS configuration. If the key does
 // not exists, returns nil.
-func Config(key []byte) interface{} {
+func Config(key []byte) any {
 	ctx := storage.GetReadOnlyContext()
 	return getConfig(ctx, key)
 }
 
-// SetConfig key-value pair as a NeoFS runtime configuration value. It can be invoked
+// SetConfig key-value pair as a FrostFS runtime configuration value. It can be invoked
 // only by Alphabet nodes.
 func SetConfig(id, key, val []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = getAlphabetNodes(ctx)
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(key) == 0 {
-			panic("this method must be invoked by alphabet")
-		}
-	} else {
-		multiaddr := AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
 
 	setConfig(ctx, key, val)
 
@@ -507,7 +320,7 @@ func SetConfig(id, key, val []byte) {
 }
 
 // ListConfig returns an array of structures that contain a key and a value of all
-// NeoFS configuration records. Key and value are both byte arrays.
+// FrostFS configuration records. Key and value are both byte arrays.
 func ListConfig() []record {
 	ctx := storage.GetReadOnlyContext()
 
@@ -532,26 +345,16 @@ func Version() int {
 	return common.Version
 }
 
-// getAlphabetNodes returns a deserialized slice of nodes from storage.
+// getConfig returns the installed frostfs configuration value or nil if it is not set.
-func getAlphabetNodes(ctx storage.Context) []interop.PublicKey {
+func getConfig(ctx storage.Context, key any) interface{} {
-	data := storage.Get(ctx, alphabetKey)
-	if data != nil {
-		return std.Deserialize(data.([]byte)).([]interop.PublicKey)
-	}
-
-	return []interop.PublicKey{}
-}
-
-// getConfig returns the installed neofs configuration value or nil if it is not set.
-func getConfig(ctx storage.Context, key interface{}) interface{} {
 	postfix := key.([]byte)
 	storageKey := append(configPrefix, postfix...)
 
 	return storage.Get(ctx, storageKey)
 }
 
-// setConfig sets a neofs configuration value in the contract storage.
+// setConfig sets a frostfs configuration value in the contract storage.
-func setConfig(ctx storage.Context, key, val interface{}) {
+func setConfig(ctx storage.Context, key, val any) {
 	postfix := key.([]byte)
 	storageKey := append(configPrefix, postfix...)
 

frostfsid/client/client.go

@@ -0,0 +1,656 @@
+package client
+
+import (
+	"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/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"
+)
+
+type (
+	Client struct {
+		act      *actor.Actor
+		waiter   waiter.Waiter
+		contract util.Uint160
+	}
+
+	Options struct {
+		ProxyContract util.Uint160
+		Waiter        commonclient.WaiterOptions
+	}
+)
+
+type (
+	Subject struct {
+		PrimaryKey     *keys.PublicKey
+		AdditionalKeys keys.PublicKeys
+		Namespace      string
+		Name           string
+		KV             map[string]string
+	}
+
+	SubjectExtended struct {
+		PrimaryKey     *keys.PublicKey
+		AdditionalKeys keys.PublicKeys
+		Namespace      string
+		Name           string
+		KV             map[string]string
+		Groups         []*Group
+	}
+
+	Namespace struct {
+		Name string
+	}
+
+	NamespaceExtended struct {
+		Name          string
+		GroupsCount   int64
+		SubjectsCount int64
+	}
+
+	Group struct {
+		ID        int64
+		Name      string
+		Namespace string
+		KV        map[string]string
+	}
+
+	GroupExtended struct {
+		ID            int64
+		Name          string
+		Namespace     string
+		KV            map[string]string
+		SubjectsCount int64
+	}
+)
+
+const (
+	IAMPathKey         = "iam-path"
+	IAMARNKey          = "iam-arn"
+	IAMCreatedTimeKey  = "ctime"
+	IAMModifiedTimeKey = "mtime"
+)
+
+const iteratorBatchSize = 100
+
+const (
+	getAdminMethod   = "getAdmin"
+	setAdminMethod   = "setAdmin"
+	clearAdminMethod = "clearAdmin"
+
+	versionMethod = "version"
+
+	createSubjectMethod       = "createSubject"
+	getSubjectMethod          = "getSubject"
+	getSubjectExtendedMethod  = "getSubjectExtended"
+	getSubjectKVMethod        = "getSubjectKV"
+	listSubjectsMethod        = "listSubjects"
+	addSubjectKeyMethod       = "addSubjectKey"
+	removeSubjectKeyMethod    = "removeSubjectKey"
+	getSubjectByKeyMethod     = "getSubjectByKey"
+	getSubjectByNameMethod    = "getSubjectByName"
+	getSubjectKeyByNameMethod = "getSubjectKeyByName"
+	setSubjectKVMethod        = "setSubjectKV"
+	setSubjectNameMethod      = "setSubjectName"
+	deleteSubjectKVMethod     = "deleteSubjectKV"
+	deleteSubjectMethod       = "deleteSubject"
+
+	createNamespaceMethod       = "createNamespace"
+	getNamespaceMethod          = "getNamespace"
+	getNamespaceExtendedMethod  = "getNamespaceExtended"
+	listNamespacesMethod        = "listNamespaces"
+	listNamespaceSubjectsMethod = "listNamespaceSubjects"
+
+	createGroupMethod            = "createGroup"
+	getGroupMethod               = "getGroup"
+	getGroupExtendedMethod       = "getGroupExtended"
+	getGroupIDByNameMethod       = "getGroupIDByName"
+	getGroupByNameMethod         = "getGroupByName"
+	setGroupNameMethod           = "setGroupName"
+	setGroupKVMethod             = "setGroupKV"
+	deleteGroupKVMethod          = "deleteGroupKV"
+	listGroupsMethod             = "listGroups"
+	addSubjectToGroupMethod      = "addSubjectToGroup"
+	removeSubjectFromGroupMethod = "removeSubjectFromGroup"
+	listGroupSubjectsMethod      = "listGroupSubjects"
+	deleteGroupMethod            = "deleteGroup"
+)
+
+// New creates a new Client. Options can be empty.
+func New(ra actor.RPCActor, acc *wallet.Account, contract util.Uint160, opt Options) (*Client, error) {
+	signers := []actor.SignerAccount{{
+		Signer: transaction.Signer{
+			Account: acc.Contract.ScriptHash(),
+			Scopes:  transaction.CalledByEntry,
+		},
+		Account: acc,
+	}}
+
+	if !opt.ProxyContract.Equals(util.Uint160{}) {
+		signers = append([]actor.SignerAccount{{
+			Signer: transaction.Signer{
+				Account:          opt.ProxyContract,
+				Scopes:           transaction.CustomContracts,
+				AllowedContracts: []util.Uint160{contract},
+			},
+			Account: notary.FakeContractAccount(opt.ProxyContract),
+		}}, signers...)
+	}
+
+	act, err := actor.New(ra, signers)
+	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 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,
+	}
+}
+
+// StartTx inits transaction.
+func (c Client) StartTx() *commonclient.Transaction {
+	return commonclient.NewTransaction(c.contract)
+}
+
+// SendTx sends provided transaction to blockchain.
+func (c Client) SendTx(txn *commonclient.Transaction) (tx util.Uint256, vub uint32, err error) {
+	txBytes, err := txn.Bytes()
+	if err != nil {
+		return util.Uint256{}, 0, err
+	}
+
+	return c.act.SendRun(txBytes)
+}
+
+// Version returns version of contract.
+func (c Client) Version() (int64, error) {
+	return unwrap.Int64(c.act.Call(c.contract, versionMethod))
+}
+
+// SetAdmin sets address that can perform write operations on contract.
+// Must be invoked by committee.
+func (c Client) SetAdmin(owner util.Uint160) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.SetAdminCall(owner)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// SetAdminCall provides args for SetAdmin to use in commonclient.Transaction.
+func (c Client) SetAdminCall(owner util.Uint160) (method string, args []any) {
+	return setAdminMethod, []any{owner}
+}
+
+// ClearAdmin removes address that can perform write operations on contract.
+// Must be invoked by committee.
+func (c Client) ClearAdmin() (tx util.Uint256, vub uint32, err error) {
+	method, args := c.ClearAdminCall()
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// ClearAdminCall provides args for ClearAdmin to use in commonclient.Transaction.
+func (c Client) ClearAdminCall() (method string, args []any) {
+	return clearAdminMethod, nil
+}
+
+// GetAdmin returns address that can perform write operations on contract.
+// Second return values is true iff admin is set.
+func (c Client) GetAdmin() (util.Uint160, bool, error) {
+	item, err := unwrap.Item(c.act.Call(c.contract, getAdminMethod))
+	if err != nil {
+		return util.Uint160{}, false, err
+	}
+	if item.Value() == nil {
+		return util.Uint160{}, false, nil
+	}
+	bs, err := item.TryBytes()
+	if err != nil {
+		return util.Uint160{}, true, err
+	}
+	u, err := util.Uint160DecodeBytesBE(bs)
+	return u, true, err
+}
+
+// CreateSubject creates new subject using public key and namespace.
+// Must be invoked by contract owner.
+func (c Client) CreateSubject(ns string, key *keys.PublicKey) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.CreateSubjectCall(ns, key)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// CreateSubjectCall provides args for CreateSubject to use in commonclient.Transaction.
+func (c Client) CreateSubjectCall(ns string, key *keys.PublicKey) (method string, args []any) {
+	return createSubjectMethod, []any{ns, key.Bytes()}
+}
+
+// GetSubject gets subject by address.
+func (c Client) GetSubject(addr util.Uint160) (*Subject, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getSubjectMethod, addr))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseSubject(items)
+}
+
+// GetSubjectExtended gets extended subject by address.
+func (c Client) GetSubjectExtended(addr util.Uint160) (*SubjectExtended, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getSubjectExtendedMethod, addr))
+	if err != nil {
+		return nil, err
+	}
+
+	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))
+}
+
+// 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.
+// Must be invoked by contract owner.
+func (c Client) AddSubjectKey(addr util.Uint160, key *keys.PublicKey) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.AddSubjectKeyCall(addr, key)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// AddSubjectKeyCall provides args for AddSubjectKey to use in commonclient.Transaction.
+func (c Client) AddSubjectKeyCall(addr util.Uint160, key *keys.PublicKey) (method string, args []any) {
+	return addSubjectKeyMethod, []any{addr, key.Bytes()}
+}
+
+// RemoveSubjectKey removes extra public key from subject.
+// Must be invoked by contract owner.
+func (c Client) RemoveSubjectKey(addr util.Uint160, key *keys.PublicKey) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.RemoveSubjectKeyCall(addr, key)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// RemoveSubjectKeyCall provides args for RemoveSubjectKey to use in commonclient.Transaction.
+func (c Client) RemoveSubjectKeyCall(addr util.Uint160, key *keys.PublicKey) (method string, args []any) {
+	return removeSubjectKeyMethod, []any{addr, key.Bytes()}
+}
+
+// SetSubjectKV updates subject kv map.
+// Must be invoked by contract owner.
+// You can use some predefined key constants: IAMPathKey, IAMARNKey, IAMCreatedTimeKey, IAMModifiedTimeKey.
+func (c Client) SetSubjectKV(addr util.Uint160, key, val string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.SetSubjectKVCall(addr, key, val)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// SetSubjectKVCall provides args for SetSubjectKV to use in commonclient.Transaction.
+func (c Client) SetSubjectKVCall(addr util.Uint160, key, val string) (method string, args []any) {
+	return setSubjectKVMethod, []any{addr, key, val}
+}
+
+// SetSubjectName updates subject name.
+// Must be invoked by contract owner.
+func (c Client) SetSubjectName(addr util.Uint160, name string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.SetSubjectNameCall(addr, name)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// SetSubjectNameCall provides args for SetSubjectName to use in commonclient.Transaction.
+func (c Client) SetSubjectNameCall(addr util.Uint160, name string) (method string, args []any) {
+	return setSubjectNameMethod, []any{addr, name}
+}
+
+// DeleteSubjectKV removes subject kv map.
+// Must be invoked by contract owner.
+func (c Client) DeleteSubjectKV(addr util.Uint160, key string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.DeleteSubjectKVCall(addr, key)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// DeleteSubjectKVCall provides args for DeleteSubjectKV to use in commonclient.Transaction.
+func (c Client) DeleteSubjectKVCall(addr util.Uint160, key string) (method string, args []any) {
+	return deleteSubjectKVMethod, []any{addr, key}
+}
+
+// GetSubjectByKey gets subject by its primary or additional keys.
+func (c Client) GetSubjectByKey(key *keys.PublicKey) (*Subject, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getSubjectByKeyMethod, key.Bytes()))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseSubject(items)
+}
+
+// GetSubjectByName gets subject by its name (namespace scope).
+func (c Client) GetSubjectByName(namespace, subjectName string) (*Subject, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getSubjectByNameMethod, namespace, subjectName))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseSubject(items)
+}
+
+// GetSubjectKeyByName gets subject public key by its name (namespace scope).
+func (c Client) GetSubjectKeyByName(namespace, subjectName string) (*keys.PublicKey, error) {
+	return unwrap.PublicKey(c.act.Call(c.contract, getSubjectKeyByNameMethod, namespace, subjectName))
+}
+
+// DeleteSubject delete subject and removes it from related namespaces and groups.
+// Must be invoked by contract owner.
+func (c Client) DeleteSubject(addr util.Uint160) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.DeleteSubjectCall(addr)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// DeleteSubjectCall provides args for DeleteSubject to use in commonclient.Transaction.
+func (c Client) DeleteSubjectCall(addr util.Uint160) (method string, args []any) {
+	return deleteSubjectMethod, []any{addr}
+}
+
+// CreateNamespace create new namespace.
+// Must be invoked by contract owner.
+func (c Client) CreateNamespace(namespace string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.CreateNamespaceCall(namespace)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// CreateNamespaceCall provides args for CreateNamespace to use in commonclient.Transaction.
+func (c Client) CreateNamespaceCall(namespace string) (method string, args []any) {
+	return createNamespaceMethod, []any{namespace}
+}
+
+// GetNamespace gets namespace.
+func (c Client) GetNamespace(namespace string) (*Namespace, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getNamespaceMethod, namespace))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseNamespace(items)
+}
+
+// GetNamespaceExtended gets extended namespace.
+func (c Client) GetNamespaceExtended(namespace string) (*NamespaceExtended, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getNamespaceExtendedMethod, namespace))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseNamespaceExtended(items)
+}
+
+// ListNamespaces gets all namespaces.
+func (c Client) ListNamespaces() ([]*Namespace, error) {
+	items, err := commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listNamespacesMethod)
+	if err != nil {
+		return nil, err
+	}
+
+	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))
+}
+
+// CreateGroup creates a new group in specific namespace.
+// Must be invoked by contract owner.
+func (c Client) CreateGroup(namespace, group string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.CreateGroupCall(namespace, group)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// CreateGroupCall provides args for CreateGroup to use in commonclient.Transaction.
+func (c Client) CreateGroupCall(namespace, group string) (method string, args []any) {
+	return createGroupMethod, []any{namespace, group}
+}
+
+// GetGroup gets group.
+func (c Client) GetGroup(namespace string, groupID int64) (*Group, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getGroupMethod, namespace, groupID))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseGroup(items)
+}
+
+// GetGroupExtended gets extended group.
+func (c Client) GetGroupExtended(namespace string, groupID int64) (*GroupExtended, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getGroupExtendedMethod, namespace, groupID))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseGroupExtended(items)
+}
+
+// SetGroupName updates subject name.
+// Must be invoked by contract owner.
+func (c Client) SetGroupName(namespace string, groupID int64, name string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.SetGroupNameCall(namespace, groupID, name)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// SetGroupNameCall provides args for SetGroupName to use in commonclient.Transaction.
+func (c Client) SetGroupNameCall(namespace string, groupID int64, name string) (method string, args []any) {
+	return setGroupNameMethod, []any{namespace, groupID, name}
+}
+
+// SetGroupKV updates group kv map.
+// Must be invoked by contract owner.
+// You can use some predefined key constants: IAMPathKey, IAMARNKey, IAMCreatedTimeKey, IAMModifiedTimeKey.
+func (c Client) SetGroupKV(namespace string, groupID int64, key, val string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.SetGroupKVCall(namespace, groupID, key, val)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// SetGroupKVCall provides args for SetGroupKV to use in commonclient.Transaction.
+func (c Client) SetGroupKVCall(namespace string, groupID int64, key, val string) (method string, args []any) {
+	return setGroupKVMethod, []any{namespace, groupID, key, val}
+}
+
+// DeleteGroupKV removes group kv map.
+// Must be invoked by contract owner.
+func (c Client) DeleteGroupKV(namespace string, groupID int64, key string) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.DeleteGroupKVCall(namespace, groupID, key)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// DeleteGroupKVCall provides args for DeleteGroupKV to use in commonclient.Transaction.
+func (c Client) DeleteGroupKVCall(namespace string, groupID int64, key string) (method string, args []any) {
+	return deleteGroupKVMethod, []any{namespace, groupID, key}
+}
+
+// GetGroupIDByName gets group id its name (namespace scope).
+func (c Client) GetGroupIDByName(namespace, groupName string) (int64, error) {
+	return unwrap.Int64(c.act.Call(c.contract, getGroupIDByNameMethod, namespace, groupName))
+}
+
+// GetGroupByName gets group by its name (namespace scope).
+func (c Client) GetGroupByName(namespace, groupName string) (*Group, error) {
+	items, err := unwrap.Array(c.act.Call(c.contract, getGroupByNameMethod, namespace, groupName))
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseGroup(items)
+}
+
+// ListGroups gets all groups in specific namespace.
+func (c Client) ListGroups(namespace string) ([]*Group, error) {
+	items, err := commonclient.ReadIteratorItems(c.act, iteratorBatchSize, c.contract, listGroupsMethod, namespace)
+	if err != nil {
+		return nil, err
+	}
+
+	return ParseGroups(items)
+}
+
+// AddSubjectToGroup adds a new subject to group.
+// Must be invoked by contract owner.
+func (c Client) AddSubjectToGroup(addr util.Uint160, groupID int64) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.AddSubjectToGroupCall(addr, groupID)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// AddSubjectToGroupCall provides args for AddSubjectToGroup to use in commonclient.Transaction.
+func (c Client) AddSubjectToGroupCall(addr util.Uint160, groupID int64) (method string, args []any) {
+	return addSubjectToGroupMethod, []any{addr, groupID}
+}
+
+// RemoveSubjectFromGroup removes subject from group.
+// Must be invoked by contract owner.
+func (c Client) RemoveSubjectFromGroup(addr util.Uint160, groupID int64) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.RemoveSubjectFromGroupCall(addr, groupID)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// RemoveSubjectFromGroupCall provides args for RemoveSubjectFromGroup to use in commonclient.Transaction.
+func (c Client) RemoveSubjectFromGroupCall(addr util.Uint160, groupID int64) (method string, args []any) {
+	return removeSubjectFromGroupMethod, []any{addr, groupID}
+}
+
+// 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))
+}
+
+// DeleteGroup deletes group.
+// Must be invoked by contract owner.
+func (c Client) DeleteGroup(namespace string, groupID int64) (tx util.Uint256, vub uint32, err error) {
+	method, args := c.DeleteGroupCall(namespace, groupID)
+	return c.act.SendCall(c.contract, method, args...)
+}
+
+// DeleteGroupCall provides args for DeleteGroup to use in commonclient.Transaction.
+func (c Client) DeleteGroupCall(namespace string, groupID int64) (method string, args []any) {
+	return deleteGroupMethod, []any{namespace, groupID}
+}
+
+// ListNonEmptyNamespaces gets namespaces that contain at least one subject.
+func (c Client) ListNonEmptyNamespaces() ([]string, error) {
+	namespaces, err := c.ListNamespaces()
+	if err != nil {
+		return nil, err
+	}
+
+	var res []string
+
+	for _, namespace := range namespaces {
+		nsExt, err := c.GetNamespaceExtended(namespace.Name)
+		if err != nil {
+			return nil, err
+		}
+
+		if nsExt.SubjectsCount > 0 {
+			res = append(res, nsExt.Name)
+		}
+	}
+
+	return res, nil
+}
+
+// Wait waits until the specified transaction is accepted to the chain.
+func (c Client) Wait(tx util.Uint256, vub uint32, err error) (*state.AppExecResult, error) {
+	return c.Waiter().Wait(tx, vub, err)
+}
+
+// Waiter returns underlying waiter.Waiter.
+func (c Client) Waiter() waiter.Waiter {
+	return c.waiter
+}
+
+// ParseGroupID fetch groupID from stack after creating group method invocation.
+func (c Client) ParseGroupID(res *state.AppExecResult, err error) (int64, error) {
+	if err != nil {
+		return 0, err
+	}
+
+	return unwrap.Int64(makeResFromAppExec(res))
+}
+
+// ListNonEmptyGroups gets groups that contain at least one subject.
+func (c Client) ListNonEmptyGroups(namespace string) ([]string, error) {
+	groups, err := c.ListGroups(namespace)
+	if err != nil {
+		return nil, err
+	}
+
+	var res []string
+
+	for _, group := range groups {
+		groupExt, err := c.GetGroupExtended(namespace, group.ID)
+		if err != nil {
+			return nil, err
+		}
+
+		if groupExt.SubjectsCount > 0 {
+			res = append(res, groupExt.Name)
+		}
+	}
+
+	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

@@ -0,0 +1,134 @@
+name: "Identity"
+safemethods:
+  - "getAdmin"
+  - "getGroup"
+  - "getGroupExtended"
+  - "getGroupIDByName"
+  - "getGroupByName"
+  - "getNamespace"
+  - "getNamespaceExtended"
+  - "getSubjectKV"
+  - "getSubject"
+  - "getSubjectExtended"
+  - "getSubjectByKey"
+  - "getSubjectByName"
+  - "getSubjectKeyByName"
+  - "listGroups"
+  - "listGroupSubjects"
+  - "listNamespaces"
+  - "listNamespaceSubjects"
+  - "listSubjects"
+  - "version"
+permissions:
+  - methods: ["update"]
+events:
+  - name: CreateSubject
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+  - name: AddSubjectKey
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: subjectKey
+        type: PublicKey
+  - name: RemoveSubjectKey
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: subjectKey
+        type: PublicKey
+  - name: SetSubjectName
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: name
+        type: String
+  - name: SetSubjectKV
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: key
+        type: String
+      - name: value
+        type: String
+  - name: DeleteSubjectKV
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: key
+        type: String
+  - name: DeleteSubject
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+  - name: CreateNamespace
+    parameters:
+      - name: namespace
+        type: String
+  - name: AddSubjectToNamespace
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: namespace
+        type: String
+  - name: RemoveSubjectFromNamespace
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: namespace
+        type: String
+  - name: CreateGroup
+    parameters:
+      - name: namespace
+        type: String
+      - name: group
+        type: String
+  - name: SetGroupName
+    parameters:
+      - name: namespace
+        type: String
+      - name: groupID
+        type: Integer
+      - name: name
+        type: String
+  - name: SetGroupKV
+    parameters:
+      - name: namespace
+        type: String
+      - name: groupID
+        type: Integer
+      - name: key
+        type: String
+      - name: value
+        type: String
+  - name: DeleteGroupKV
+    parameters:
+      - name: namespace
+        type: String
+      - name: groupID
+        type: Integer
+      - name: key
+        type: String
+  - name: AddSubjectToGroup
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: namespace
+        type: String
+      - name: groupID
+        type: Integer
+  - name: RemoveSubjectFromGroup
+    parameters:
+      - name: subjectAddress
+        type: Hash160
+      - name: namespace
+        type: String
+      - name: groupID
+        type: Integer
+  - name: DeleteGroup
+    parameters:
+      - name: namespace
+        type: String
+      - name: groupID
+        type: Integer

frostfsid/doc.go

@@ -0,0 +1,27 @@
+// Package frostfsid
+/*
+FrostFSID contract is a contract deployed in FrostFS sidechain.
+
+# Contract notifications
+
+FrostFSID contract does not produce notifications to process.
+
+# Contract storage scheme
+
+ |   Key                                                                        | Value                          |           Description                         |
+ |------------------------------------------------------------------------------|--------------------------------|-----------------------------------------------|
+ | `o` + [ owner address ]                                                      | []byte{1}                      | contract owners that can invoke write methods |
+ | `s` + [ subject address ]                                                    | Serialized Subject structure   | subject into                                  |
+ | `a` + [ pk address ] + [ subject address ]                                   | []byte{1}                      | link extra public keys for subject            |
+ | `n` + [ RIPEMD160 of namespace ]                                             | Serialized Namespace structure | namespace info                                |
+ | `N` + [ RIPEMD160 of namespace ] + [ subject address ]                       | []byte{1}                      | subject that belongs to the namespace         |
+ | `l` + [ RIPEMD160 of namespace ] + [ RIPEMD160 of subject name ]             | Subject public key             | subject name to public key index              |
+ | `g` + [ RIPEMD160 of namespace ] + [ 8 byte group id ]                       | Serialized Group structure     | group into                                    |
+ | `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           |
+
+
+*/
+package frostfsid

go.mod

@@ -1,10 +1,56 @@
-module github.com/nspcc-dev/neofs-contract
+module git.frostfs.info/TrueCloudLab/frostfs-contract
 
-go 1.14
+go 1.22
 
 require (
+	github.com/google/uuid v1.6.0
 	github.com/mr-tron/base58 v1.2.0
-	github.com/nspcc-dev/neo-go v0.99.2
+	github.com/nspcc-dev/neo-go v0.106.3
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220809123759-3094d3e0c14b
+	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20240727093519-1a48f1ce43ec
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.9.0
+	go.uber.org/zap v1.27.0
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bits-and-blooms/bitset v1.8.0 // indirect
+	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 v2.0.4 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
+	github.com/golang/snappy v0.0.1 // indirect
+	github.com/gorilla/websocket v1.5.1 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/holiman/uint256 v1.2.4 // indirect
+	github.com/mmcloughlin/addchain v0.4.0 // indirect
+	github.com/nspcc-dev/dbft v0.2.0 // indirect
+	github.com/nspcc-dev/go-ordered-json v0.0.0-20240301084351-0246b013f8b2 // indirect
+	github.com/nspcc-dev/rfc6979 v0.2.1 // indirect
+	github.com/pierrec/lz4 v2.6.1+incompatible // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.19.0 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/common v0.48.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/rogpeppe/go-internal v1.11.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954 // indirect
+	github.com/twmb/murmur3 v1.1.8 // indirect
+	github.com/urfave/cli/v2 v2.27.2 // indirect
+	github.com/xrash/smetrics v0.0.0-20240312152122-5f08fbb34913 // indirect
+	go.etcd.io/bbolt v1.3.9 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/mod v0.16.0 // indirect
+	golang.org/x/net v0.23.0 // 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 v0.19.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	rsc.io/tmplfunc v0.0.3 // indirect
 )

go.sum

@@ -1,715 +1,194 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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neofs/doc.go

@@ -1,95 +0,0 @@
-/*
-NeoFS contract is a contract deployed in NeoFS mainchain.
-
-NeoFS contract is an entry point to NeoFS users. This contract stores all NeoFS
-related GAS, registers new Inner Ring candidates and produces notifications
-to control the sidechain.
-
-While mainchain committee controls the list of Alphabet nodes in native
-RoleManagement contract, NeoFS can't change more than 1\3 keys at a time.
-NeoFS contract contains the actual list of Alphabet nodes in the sidechain.
-
-Network configuration is also stored in NeoFS contract. All changes in
-configuration are mirrored in the sidechain with notifications.
-
-Contract notifications
-
-Deposit notification. This notification is produced when user transfers native
-GAS to the NeoFS contract address. The same amount of NEOFS token will be
-minted in Balance contract in the sidechain.
-
-  Deposit:
-    - name: from
-      type: Hash160
-    - name: amount
-      type: Integer
-    - name: receiver
-      type: Hash160
-    - name: txHash
-      type: Hash256
-
-Withdraw notification. This notification is produced when a user wants to
-withdraw GAS from the internal NeoFS balance and has paid fee for that.
-
-  Withdraw:
-    - name: user
-      type: Hash160
-    - name: amount
-      type: Integer
-    - name: txHash
-      type: Hash256
-
-
-Cheque notification. This notification is produced when NeoFS contract
-has successfully transferred assets back to the user after withdraw.
-
-  Cheque:
-    - name: id
-      type: ByteArray
-    - name: user
-      type: Hash160
-    - name: amount
-      type: Integer
-    - name: lockAccount
-      type: ByteArray
-
-Bind notification. This notification is produced when a user wants to bind
-public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
-
-  Bind:
-    - name: user
-      type: ByteArray
-    - name: keys
-      type: Array
-
-Unbind notification. This notification is produced when a user wants to unbind
-public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
-
-  Unbind:
-    - name: user
-      type: ByteArray
-    - name: keys
-      type: Array
-
-AlphabetUpdate notification. This notification is produced when Alphabet nodes
-have updated their lists in the contract. Alphabet argument is an array of ByteArray. It
-contains public keys of new alphabet nodes.
-
-  AlphabetUpdate:
-    - name: id
-      type: ByteArray
-    - name: alphabet
-      type: Array
-
-SetConfig notification. This notification is produced when Alphabet nodes update
-NeoFS network configuration value.
-
-  SetConfig
-    - name: id
-      type: ByteArray
-    - name: key
-      type: ByteArray
-    - name: value
-      type: ByteArray
-*/
-package neofs

neofsid/config.yml

@@ -1,4 +0,0 @@
-name: "NeoFS ID"
-safemethods: ["key", "version"]
-permissions:
-  - methods: ["update"]

neofsid/doc.go

@@ -1,20 +0,0 @@
-/*
-NeoFSID contract is a contract deployed in NeoFS sidechain.
-
-NeoFSID contract is used to store connection between an OwnerID and its public keys.
-OwnerID is a 25-byte N3 wallet address that can be produced from a public key.
-It is one-way conversion. In simple cases, NeoFS verifies ownership by checking
-signature and relation between a public key and an OwnerID.
-
-In more complex cases, a user can use public keys unrelated to the OwnerID to maintain
-secure access to the data. NeoFSID contract stores relation between an OwnerID and
-arbitrary public keys. Data owner can bind a public key with its account or unbind it
-by invoking Bind or Unbind methods of NeoFS contract in the mainchain. After that,
-Alphabet nodes produce multisigned AddKey and RemoveKey invocations of NeoFSID
-contract.
-
-Contract notifications
-
-NeoFSID contract does not produce notifications to process.
-*/
-package neofsid

neofsid/neofsid_contract.go

@@ -1,233 +0,0 @@
-package neofsid
-
-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/iterator"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
-	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
-	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
-)
-
-type (
-	UserInfo struct {
-		Keys [][]byte
-	}
-)
-
-const (
-	ownerSize = 1 + interop.Hash160Len + 4
-)
-
-const (
-	netmapContractKey    = "netmapScriptHash"
-	containerContractKey = "containerScriptHash"
-	notaryDisabledKey    = "notary"
-	ownerKeysPrefix      = 'o'
-)
-
-func _deploy(data interface{}, isUpdate bool) {
-	ctx := storage.GetContext()
-
-	if isUpdate {
-		args := data.([]interface{})
-		common.CheckVersion(args[len(args)-1].(int))
-		return
-	}
-
-	args := data.(struct {
-		notaryDisabled bool
-		addrNetmap     interop.Hash160
-		addrContainer  interop.Hash160
-	})
-
-	if len(args.addrNetmap) != interop.Hash160Len || len(args.addrContainer) != interop.Hash160Len {
-		panic("incorrect length of contract script hash")
-	}
-
-	storage.Put(ctx, netmapContractKey, args.addrNetmap)
-	storage.Put(ctx, containerContractKey, args.addrContainer)
-
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.InitVote(ctx)
-		runtime.Log("neofsid contract notary disabled")
-	}
-
-	runtime.Log("neofsid contract initialized")
-}
-
-// Update method updates contract source code and manifest. It can be invoked
-// only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
-	if !common.HasUpdateAccess() {
-		panic("only committee can update contract")
-	}
-
-	contract.Call(interop.Hash160(management.Hash), "update",
-		contract.All, script, manifest, common.AppendVersion(data))
-	runtime.Log("neofsid contract updated")
-}
-
-// AddKey binds a list of the provided public keys to the OwnerID. It can be invoked only by
-// Alphabet nodes.
-//
-// This method panics if the OwnerID is not an ownerSize byte or the public key is not 33 byte long.
-// If the key is already bound, the method ignores it.
-func AddKey(owner []byte, keys []interop.PublicKey) {
-	// V2 format
-	if len(owner) != ownerSize {
-		panic("incorrect owner")
-	}
-
-	for i := range keys {
-		if len(keys[i]) != interop.PublicKeyCompressedLen {
-			panic("incorrect public key")
-		}
-	}
-
-	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet     []interop.PublicKey
-		nodeKey      []byte
-		indirectCall bool
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("invocation from non inner ring node")
-		}
-
-		indirectCall = common.FromKnownContract(
-			ctx,
-			runtime.GetCallingScriptHash(),
-			containerContractKey)
-
-		if indirectCall {
-			threshold := len(alphabet)*2/3 + 1
-			id := invokeIDKeys(owner, keys, []byte("add"))
-
-			n := common.Vote(ctx, id, nodeKey)
-			if n < threshold {
-				return
-			}
-
-			common.RemoveVotes(ctx, id)
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	ownerKey := append([]byte{ownerKeysPrefix}, owner...)
-	for i := range keys {
-		stKey := append(ownerKey, keys[i]...)
-		storage.Put(ctx, stKey, []byte{1})
-	}
-
-	runtime.Log("key bound to the owner")
-}
-
-// RemoveKey unbinds the provided public keys from the OwnerID. It can be invoked only by
-// Alphabet nodes.
-//
-// This method panics if the OwnerID is not an ownerSize byte or the public key is not 33 byte long.
-// If the key is already unbound, the method ignores it.
-func RemoveKey(owner []byte, keys []interop.PublicKey) {
-	// V2 format
-	if len(owner) != ownerSize {
-		panic("incorrect owner")
-	}
-
-	for i := range keys {
-		if len(keys[i]) != interop.PublicKeyCompressedLen {
-			panic("incorrect public key")
-		}
-	}
-
-	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("invocation from non inner ring node")
-		}
-
-		threshold := len(alphabet)*2/3 + 1
-		id := invokeIDKeys(owner, keys, []byte("remove"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	} else {
-		multiaddr := common.AlphabetAddress()
-		if !runtime.CheckWitness(multiaddr) {
-			panic("invocation from non inner ring node")
-		}
-	}
-
-	ownerKey := append([]byte{ownerKeysPrefix}, owner...)
-	for i := range keys {
-		stKey := append(ownerKey, keys[i]...)
-		storage.Delete(ctx, stKey)
-	}
-}
-
-// Key method returns a list of 33-byte public keys bound with the OwnerID.
-//
-// This method panics if the owner is not ownerSize byte long.
-func Key(owner []byte) [][]byte {
-	// V2 format
-	if len(owner) != ownerSize {
-		panic("incorrect owner")
-	}
-
-	ctx := storage.GetReadOnlyContext()
-
-	ownerKey := append([]byte{ownerKeysPrefix}, owner...)
-	info := getUserInfo(ctx, ownerKey)
-
-	return info.Keys
-}
-
-// Version returns the version of the contract.
-func Version() int {
-	return common.Version
-}
-
-func getUserInfo(ctx storage.Context, key interface{}) UserInfo {
-	it := storage.Find(ctx, key, storage.KeysOnly|storage.RemovePrefix)
-	pubs := [][]byte{}
-	for iterator.Next(it) {
-		pub := iterator.Value(it).([]byte)
-		pubs = append(pubs, pub)
-	}
-
-	return UserInfo{Keys: pubs}
-}
-
-func invokeIDKeys(owner []byte, keys []interop.PublicKey, prefix []byte) []byte {
-	prefix = append(prefix, owner...)
-	for i := range keys {
-		prefix = append(prefix, keys[i]...)
-	}
-
-	return crypto.Sha256(prefix)
-}

netmap/config.yml

@@ -1,5 +1,13 @@
-name: "NeoFS Netmap"
+name: "Netmap"
-safemethods: ["innerRingList", "epoch", "netmap", "netmapCandidates", "snapshot", "snapshotByEpoch", "config", "listConfig", "version"]
+safemethods:
+  - "config"
+  - "epoch"
+  - "listConfig"
+  - "netmap"
+  - "netmapCandidates"
+  - "snapshot"
+  - "snapshotByEpoch"
+  - "version"
 permissions:
   - methods: ["update", "newEpoch"]
 events:

netmap/doc.go

@@ -1,11 +1,10 @@
 /*
-Netmap contract is a contract deployed in NeoFS sidechain.
+Netmap contract is a contract deployed in FrostFS sidechain.
 
-Netmap contract stores and manages NeoFS network map, Storage node candidates
+Netmap contract stores and manages FrostFS network map, Storage node candidates
-and epoch number counter. In notary disabled environment, contract also stores
+and epoch number counter.
-a list of Inner Ring node keys.
 
-Contract notifications
+# Contract notifications
 
 AddPeer notification. This notification is produced when a Storage node sends
 a bootstrap request by invoking AddPeer method.
@@ -30,5 +29,17 @@ in the network by invoking NewEpoch method.
 	NewEpoch
 	  - name: epoch
 	    type: Integer
+
+# Contract storage scheme
+
+	|   Key                       | Value      |           Description             |
+	|-----------------------------|------------|-----------------------------------|
+	| `snapshotCount`             | int        | snapshot count                    |
+	| `snapshotEpoch`             | int        | snapshot epoch                    |
+	| `snapshotBlock`             | int        | snapshot block                    |
+	| `snapshot_` + snapshotNum   | ByteArray  | serialized '[]Node' array         |
+	| `snapshotCurrent`           | int        | current snapshot                  |
+	| `balanceScriptHash`         | Hash160    | balance contract hash             |
+	| `containerScriptHash`       | Hash160    | container contract hash           |
 */
 package netmap

netmap/netmap_contract.go

@@ -1,16 +1,15 @@
 package netmap
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/iterator"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"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/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
 )
 
 // NodeState is an enumeration for node states.
@@ -32,10 +31,10 @@ const (
 	NodeStateMaintenance
 )
 
-// Node groups data related to NeoFS storage nodes registered in the NeoFS
+// Node groups data related to FrostFS storage nodes registered in the FrostFS
 // network. The information is stored in the current contract.
 type Node struct {
-	// Information about the node encoded according to the NeoFS binary
+	// Information about the node encoded according to the FrostFS binary
 	// protocol.
 	BLOB []byte
 
@@ -44,7 +43,6 @@ type Node struct {
 }
 
 const (
-	notaryDisabledKey = "notary"
 	innerRingKey = "innerring"
 
 	// DefaultSnapshotCount contains the number of previous snapshots stored by this contract.
@@ -68,11 +66,10 @@ var (
 )
 
 // _deploy function sets up initial list of inner ring public keys.
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	ctx := storage.GetContext()
 
-	var args = data.(struct {
+	args := data.(struct {
-		notaryDisabled bool
 		addrBalance   interop.Hash160
 		addrContainer interop.Hash160
 		keys          []interop.PublicKey
@@ -94,25 +91,6 @@ func _deploy(data interface{}, isUpdate bool) {
 
 	if isUpdate {
 		common.CheckVersion(args.version)
-
-		count := getSnapshotCount(ctx)
-		prefix := []byte(snapshotKeyPrefix)
-		for i := 0; i < count; i++ {
-			key := append(prefix, byte(i))
-			data := storage.Get(ctx, key)
-			if data != nil {
-				nodes := std.Deserialize(data.([]byte)).([]Node)
-				for i := range nodes {
-					// Old structure contains only the first field,
-					// second is implicitly assumed to be Online.
-					nodes[i] = Node{
-						BLOB:  nodes[i].BLOB,
-						State: NodeStateOnline,
-					}
-				}
-				common.SetSerialized(ctx, key, nodes)
-			}
-		}
 		return
 	}
 
@@ -134,85 +112,20 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, balanceContractKey, args.addrBalance)
 	storage.Put(ctx, containerContractKey, args.addrContainer)
 
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.SetSerialized(ctx, innerRingKey, args.keys)
-		common.InitVote(ctx)
-		runtime.Log("netmap contract notary disabled")
-	}
-
 	runtime.Log("netmap contract initialized")
 }
 
 // Update method updates contract source code and manifest. It can be invoked
 // only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	if !common.HasUpdateAccess() {
 		panic("only committee can update contract")
 	}
 
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-		contract.All, script, manifest, common.AppendVersion(data))
 	runtime.Log("netmap contract updated")
 }
 
-// InnerRingList method returns a slice of structures that contains the public key of
-// an Inner Ring node. It should be used in notary disabled environment only.
-//
-// If notary is enabled, look to NeoFSAlphabet role in native RoleManagement
-// contract of the sidechain.
-func InnerRingList() []common.IRNode {
-	ctx := storage.GetReadOnlyContext()
-	pubs := getIRNodes(ctx)
-	nodes := []common.IRNode{}
-	for i := range pubs {
-		nodes = append(nodes, common.IRNode{PublicKey: pubs[i]})
-	}
-	return nodes
-}
-
-// UpdateInnerRing method updates a list of Inner Ring node keys. It should be used
-// only in notary disabled environment. It can be invoked only by Alphabet nodes.
-//
-// If notary is enabled, update NeoFSAlphabet role in native RoleManagement
-// contract of the sidechain. Use notary service to collect multisignature.
-func UpdateInnerRing(keys []interop.PublicKey) {
-	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked by alphabet nodes")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := keysID(keys, []byte("updateIR"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
-	runtime.Log("inner ring list updated")
-	common.SetSerialized(ctx, innerRingKey, keys)
-}
-
 // AddPeerIR accepts Alphabet calls in the notary-enabled contract setting and
 // behaves similar to AddPeer in the notary-disabled one.
 //
@@ -220,12 +133,8 @@ func UpdateInnerRing(keys []interop.PublicKey) {
 // AddPeerIR MUST be called by the Alphabet member only.
 func AddPeerIR(nodeInfo []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-	if notaryDisabled {
-		panic("AddPeerIR should only be called in notary-enabled environment")
-	}
 
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 
 	publicKey := nodeInfo[2:35] // V2 format: offset:2, len:33
 
@@ -235,80 +144,16 @@ func AddPeerIR(nodeInfo []byte) {
 	})
 }
 
-// AddPeer accepts information about the network map candidate in the NeoFS
+// AddPeer accepts information about the network map candidate in the FrostFS
-// binary protocol format, identifies the caller and behaves depending on different
+// binary protocol format and does nothing. Keep method because storage node
-// conditions listed below.
+// creates a notary transaction with this method, which produces a notary
-//
+// notification (implicit here).
-// Contract settings:
-//
-//	(1) notary-enabled
-//	(2) notary-disabled
-//
-// Callers:
-//
-//	(a) candidate himself, if node's public key corresponds to the signer
-//	(b) Alphabet member
-//	(c) others
-//
-// AddPeer case-by-case behavior:
-//
-//	(1a) does nothing
-//	(1b) panics. Notice that AddPeerIR MUST be used for this purpose.
-//	(2a) throws AddPeer notification with the provided BLOB
-//	(2b) accepts Alphabet vote. If the threshold of votes is reached, adds
-//	new element to the candidate set, and throws AddPeerSuccess notification.
-//	(c) panics
-//
-// Candidate MUST call AddPeer with "online" state in its descriptor. Alphabet
-// members MUST NOT call AddPeer with any other states.
 func AddPeer(nodeInfo []byte) {
-	ctx := storage.GetContext()
+	// V2 format - offset:2, len:33
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+	common.CheckWitness(nodeInfo[2:35])
-
-	var ( // for invocation collection without notary
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-	}
-
-	// V2 format
-	publicKey := nodeInfo[2:35] // offset:2, len:33
-
-	// If notary is enabled or caller is not an alphabet node,
-	// just emit the notification for alphabet.
-	if !notaryDisabled || len(nodeKey) == 0 {
-		common.CheckWitness(publicKey)
-		if notaryDisabled {
-			runtime.Notify("AddPeer", nodeInfo)
-		}
 	return
 }
 
-	candidate := Node{
-		BLOB:  nodeInfo,
-		State: NodeStateOnline,
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		rawCandidate := std.Serialize(candidate)
-		id := crypto.Sha256(rawCandidate)
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
-	addToNetmap(ctx, publicKey, candidate)
-}
-
 // updates state of the network map candidate by its public key in the contract
 // storage, and throws UpdateStateSuccess notification after this.
 //
@@ -329,13 +174,8 @@ func updateCandidateState(ctx storage.Context, publicKey interop.PublicKey, stat
 }
 
 // UpdateState accepts new state to be assigned to network map candidate
-// identified by the given public key, identifies the signer and behaves
+// identified by the given public key, identifies the signer.
-// depending on different conditions listed below.
+// Applicable only for notary-enabled environment.
-//
-// Contract settings:
-//
-//	(1) notary-enabled
-//	(2) notary-disabled
 //
 // Signers:
 //
@@ -346,13 +186,10 @@ func updateCandidateState(ctx storage.Context, publicKey interop.PublicKey, stat
 //
 // UpdateState case-by-case behavior:
 //
-//	(1a) panics
+//	(a) panics
-//	(1b) like (1a)
+//	(b) panics
-//	(1ab) updates candidate's state in the contract storage (*), and throws
+//	(ab) updates candidate's state in the contract storage (*), and throws
 //	UpdateStateSuccess with the provided key and new state
-//	(2a) throws UpdateState notification with the provided key and new state
-//	(2b) accepts Alphabet vote. If the threshold of votes is reached, behaves
-//	like (1ab).
 //	(c) panics
 //
 // (*) Candidate is removed from the candidate set if state is NodeStateOffline.
@@ -368,33 +205,9 @@ func UpdateState(state NodeState, publicKey interop.PublicKey) {
 	}
 
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	if notaryDisabled {
-		alphabet := common.AlphabetNodes()
-		nodeKey := common.InnerRingInvoker(alphabet)
-
-		// If caller is not an alphabet node,
-		// just emit the notification for alphabet.
-		if len(nodeKey) == 0 {
 	common.CheckWitness(publicKey)
-			runtime.Notify("UpdateState", state, publicKey)
+	common.CheckAlphabetWitness()
-			return
-		}
-
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{state, publicKey}, []byte("update"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	} else {
-		common.CheckWitness(publicKey)
-		common.CheckAlphabetWitness(common.AlphabetAddress())
-	}
 
 	updateCandidateState(ctx, publicKey, state)
 }
@@ -407,12 +220,8 @@ func UpdateState(state NodeState, publicKey interop.PublicKey) {
 // UpdateStateIR MUST be called by the Alphabet member only.
 func UpdateStateIR(state NodeState, publicKey interop.PublicKey) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-	if notaryDisabled {
-		panic("UpdateStateIR should only be called in notary-enabled environment")
-	}
 
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 
 	updateCandidateState(ctx, publicKey, state)
 }
@@ -428,35 +237,8 @@ func UpdateStateIR(state NodeState, publicKey interop.PublicKey) {
 // It produces NewEpoch notification.
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("this method must be invoked by inner ring nodes")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-		id := common.InvokeID([]interface{}{epochNum}, []byte("epoch"))
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
 
 	currentEpoch := storage.Get(ctx, snapshotEpoch).(int)
 	if epochNum <= currentEpoch {
@@ -554,7 +336,7 @@ func getSnapshotCount(ctx storage.Context) int {
 //
 // Count MUST NOT be negative.
 func UpdateSnapshotCount(count int) {
-	common.CheckAlphabetWitness(common.AlphabetAddress())
+	common.CheckAlphabetWitness()
 	if count < 0 {
 		panic("count must be positive")
 	}
@@ -642,45 +424,19 @@ func SnapshotByEpoch(epoch int) []Node {
 	return Snapshot(currentEpoch - epoch)
 }
 
-// Config returns configuration value of NeoFS configuration. If key does
+// Config returns configuration value of FrostFS configuration. If key does
 // not exists, returns nil.
-func Config(key []byte) interface{} {
+func Config(key []byte) any {
 	ctx := storage.GetReadOnlyContext()
 	return getConfig(ctx, key)
 }
 
-// SetConfig key-value pair as a NeoFS runtime configuration value. It can be invoked
+// SetConfig key-value pair as a FrostFS runtime configuration value. It can be invoked
 // only by Alphabet nodes.
 func SetConfig(id, key, val []byte) {
 	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 
-	var ( // for invocation collection without notary
+	common.CheckAlphabetWitness()
-		alphabet []interop.PublicKey
-		nodeKey  []byte
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		if len(nodeKey) == 0 {
-			panic("invoked by non inner ring node")
-		}
-	} else {
-		multiaddr := common.AlphabetAddress()
-		common.CheckAlphabetWitness(multiaddr)
-	}
-
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
 
 	setConfig(ctx, key, val)
 
@@ -693,7 +449,7 @@ type record struct {
 }
 
 // ListConfig returns an array of structures that contain key and value of all
-// NeoFS configuration records. Key and value are both byte arrays.
+// FrostFS configuration records. Key and value are both byte arrays.
 func ListConfig() []record {
 	ctx := storage.GetReadOnlyContext()
 
@@ -782,14 +538,14 @@ func getSnapshot(ctx storage.Context, key string) []Node {
 	return []Node{}
 }
 
-func getConfig(ctx storage.Context, key interface{}) interface{} {
+func getConfig(ctx storage.Context, key any) interface{} {
 	postfix := key.([]byte)
 	storageKey := append(configPrefix, postfix...)
 
 	return storage.Get(ctx, storageKey)
 }
 
-func setConfig(ctx storage.Context, key, val interface{}) {
+func setConfig(ctx storage.Context, key, val any) {
 	postfix := key.([]byte)
 	storageKey := append(configPrefix, postfix...)
 
@@ -803,26 +559,3 @@ func cleanup(ctx storage.Context, epoch int) {
 	containerContractAddr := storage.Get(ctx, containerContractKey).(interop.Hash160)
 	contract.Call(containerContractAddr, cleanupEpochMethod, contract.All, epoch)
 }
-
-func getIRNodes(ctx storage.Context) []interop.PublicKey {
-	data := storage.Get(ctx, innerRingKey)
-	if data != nil {
-		return std.Deserialize(data.([]byte)).([]interop.PublicKey)
-	}
-
-	return []interop.PublicKey{}
-}
-
-func keysID(args []interop.PublicKey, prefix []byte) []byte {
-	var (
-		result []byte
-	)
-
-	result = append(result, prefix...)
-
-	for i := range args {
-		result = append(result, args[i]...)
-	}
-
-	return crypto.Sha256(result)
-}

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

@@ -2,8 +2,35 @@ name: "NameService"
 supportedstandards: ["NEP-11"]
 safemethods: ["balanceOf", "decimals", "symbol", "totalSupply", "tokensOf", "ownerOf",
               "tokens", "properties", "roots", "getPrice", "isAvailable", "getRecords",
+              "getAllRecords",
               "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

@@ -0,0 +1,18 @@
+/*
+
+# Contract storage scheme
+
+ |   Key                                | Value      |           Description             |
+ |--------------------------------------|------------|-----------------------------------|
+ | 0x0                                  | int        | total supply of minted domains    |
+ | 0x1 + accountAddr                    | int        | account's balance                 |
+ | 0x2 + accountAddr + tokenKey         | ByteArray  | token ID                          |
+ | 0x10                                 | int        | price for domain registration     |
+ | 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                |
+
+*/
+
+package nns

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

@@ -1,20 +0,0 @@
-name: "NameService"
-supportedstandards: ["NEP-11"]
-safemethods: ["balanceOf", "decimals", "symbol", "totalSupply", "tokensOf", "ownerOf",
-              "tokens", "properties", "roots", "getPrice", "isAvailable", "getRecord",
-              "resolve", "getAllRecords"]
-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

@@ -9,6 +9,7 @@ must be added by committee before a new domain name can be registered.
 package nns
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/iterator"
@@ -19,7 +20,6 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/interop/util"
-	"github.com/nspcc-dev/neofs-contract/common"
 )
 
 // Prefixes used for contract data storage.
@@ -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.
@@ -52,7 +60,7 @@ const (
 	// maxDomainNameFragmentLength is the maximum length of the domain name fragment.
 	maxDomainNameFragmentLength = 63
 	// minDomainNameLength is minimum domain length.
-	minDomainNameLength = 3
+	minDomainNameLength = 2
 	// maxDomainNameLength is maximum domain length.
 	maxDomainNameLength = 255
 	// maxTXTRecordLength is the maximum length of the TXT domain record.
@@ -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.
@@ -76,21 +92,20 @@ type RecordState struct {
 }
 
 // Update updates NameService contract.
-func Update(nef []byte, manifest string, data interface{}) {
+func Update(nef []byte, manifest string, data any) {
 	checkCommittee()
 	// Calculating keys and serializing requires calling
 	// std and crypto contracts. This can be helpful on update
 	// thus we provide `AllowCall` to management.Update.
 	// management.Update(nef, []byte(manifest))
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(nef, []byte(manifest), common.AppendVersion(data))
-		contract.All, nef, manifest, common.AppendVersion(data))
 	runtime.Log("nns contract updated")
 }
 
 // _deploy initializes defaults (total supply and registration price) on contract deploy.
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
@@ -129,10 +144,10 @@ func OwnerOf(tokenID []byte) interop.Hash160 {
 }
 
 // Properties returns a domain name and an expiration date of the specified domain.
-func Properties(tokenID []byte) map[string]interface{} {
+func Properties(tokenID []byte) map[string]any {
 	ctx := storage.GetReadOnlyContext()
 	ns := getNameState(ctx, tokenID)
-	return map[string]interface{}{
+	return map[string]any{
 		"name":       ns.Name,
 		"expiration": ns.Expiration,
 	}
@@ -167,7 +182,7 @@ func TokensOf(owner interop.Hash160) iterator.Iterator {
 }
 
 // Transfer transfers the domain with the specified name to a new owner.
-func Transfer(to interop.Hash160, tokenID []byte, data interface{}) bool {
+func Transfer(to interop.Hash160, tokenID []byte, data any) bool {
 	if !isValid(to) {
 		panic(`invalid receiver`)
 	}
@@ -220,69 +235,134 @@ func GetPrice() int {
 
 // IsAvailable checks whether the provided domain name is available.
 func IsAvailable(name string) bool {
-	fragments := splitAndCheck(name, false)
+	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
 	}
-	return parentExpired(ctx, 0, fragments)
+
+	checkParent(ctx, fragments)
+	checkAvailableGlobalDomain(ctx, name)
+	return storage.Get(ctx, append([]byte{prefixName}, getTokenKey([]byte(name))...)) == nil
 }
 
-// parentExpired returns true if any domain from fragments doesn't exist or is expired.
+// checkAvailableGlobalDomain - triggers a panic if the global domain name is occupied.
-// first denotes the deepest subdomain to check.
+func checkAvailableGlobalDomain(ctx storage.Context, domain string) {
-func parentExpired(ctx storage.Context, first int, fragments []string) bool {
+	globalDomain := getGlobalDomain(ctx, domain)
+	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)
+	}
+}
+
+// getGlobalDomain returns the global domain.
+func getGlobalDomain(ctx storage.Context, domain 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]
-	for i := last; i >= first; i-- {
+	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 true
+			continue
 		}
 		ns := std.Deserialize(nsBytes.([]byte)).(NameState)
 		if now >= ns.Expiration {
-			return true
+			panic("domain expired: " + name)
 		}
+		parent = name
 	}
-	return false
+	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, true)
+	ctx := storage.GetContext()
-	if fragments == nil {
+	return register(ctx, name, owner, email, refresh, retry, expire, ttl)
-		panic("invalid domain name format")
 }
 
-	l := len(fragments)
+// Register registers a new domain with the specified owner and name if it's available.
-	tldKey := append([]byte{prefixRoot}, []byte(fragments[l-1])...)
+func register(ctx storage.Context, name string, owner interop.Hash160, email string, refresh, retry, expire, ttl int) bool {
-	ctx := storage.GetContext()
+	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]
+
+			storage.Put(ctx, append([]byte{prefixAutoCreated}, rootZone...), true)
+			register(ctx, parent, owner, email, refresh, retry, expire, ttl)
 		}
-		if parentExpired(ctx, 1, fragments) {
+
-			panic("one of the parent domains is not registered")
+		parentKey := getTokenKey([]byte(parent))
-		}
-		parentKey := getTokenKey([]byte(name[len(fragments[0])+1:]))
 		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()
 
@@ -324,18 +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))
@@ -347,9 +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()
@@ -358,9 +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")
 	}
@@ -389,7 +467,7 @@ func checkBaseRecords(typ RecordType, data string) bool {
 	case A:
 		return checkIPv4(data)
 	case CNAME:
-		return splitAndCheck(data, true) != nil
+		return splitAndCheck(data) != nil
 	case TXT:
 		return len(data) <= maxTXTRecordLength
 	case AAAA:
@@ -423,13 +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) {
@@ -437,6 +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).
@@ -459,13 +670,13 @@ func updateBalance(ctx storage.Context, tokenId []byte, acc interop.Hash160, dif
 	balanceKey := append([]byte{prefixBalance}, acc...)
 	var balance int
 	if b := storage.Get(ctx, balanceKey); b != nil {
-		balance = b.(int)
+		balance = common.FromFixedWidth64(b.([]byte))
 	}
 	balance += diff
 	if balance == 0 {
 		storage.Delete(ctx, balanceKey)
 	} else {
-		storage.Put(ctx, balanceKey, balance)
+		storage.Put(ctx, balanceKey, common.ToFixedWidth64(balance))
 	}
 
 	tokenKey := getTokenKey(tokenId)
@@ -479,7 +690,7 @@ func updateBalance(ctx storage.Context, tokenId []byte, acc interop.Hash160, dif
 
 // postTransfer sends Transfer notification to the network and calls onNEP11Payment
 // method.
-func postTransfer(from, to interop.Hash160, tokenID []byte, data interface{}) {
+func postTransfer(from, to interop.Hash160, tokenID []byte, data any) {
 	runtime.Notify("Transfer", from, to, 1, tokenID)
 	if management.GetContract(to) != nil {
 		contract.Call(to, "onNEP11Payment", contract.All, from, 1, tokenID, data)
@@ -489,14 +700,14 @@ func postTransfer(from, to interop.Hash160, tokenID []byte, data interface{}) {
 // getTotalSupply returns total supply from storage.
 func getTotalSupply(ctx storage.Context) int {
 	val := storage.Get(ctx, []byte{prefixTotalSupply})
-	return val.(int)
+	return common.FromFixedWidth64(val.([]byte))
 }
 
 // updateTotalSupply adds the specified diff to the total supply.
 func updateTotalSupply(ctx storage.Context, diff int) {
 	tsKey := []byte{prefixTotalSupply}
 	ts := getTotalSupply(ctx)
-	storage.Put(ctx, tsKey, ts+diff)
+	storage.Put(ctx, tsKey, common.ToFixedWidth64(ts+diff))
 }
 
 // getTokenKey computes hash160 from the given tokenID.
@@ -509,9 +720,7 @@ func getNameState(ctx storage.Context, tokenID []byte) NameState {
 	tokenKey := getTokenKey(tokenID)
 	ns := getNameStateWithKey(ctx, tokenKey)
 	fragments := std.StringSplit(string(tokenID), ".")
-	if parentExpired(ctx, 1, fragments) {
+	checkParent(ctx, fragments)
-		panic("parent domain has expired")
-	}
 	return ns
 }
 
@@ -581,6 +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")
 	}
@@ -599,6 +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.
@@ -619,6 +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.
@@ -628,7 +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)
 
@@ -669,6 +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()
@@ -717,24 +980,29 @@ func isAlNum(c uint8) bool {
 }
 
 // splitAndCheck splits domain name into parts and validates it.
-func splitAndCheck(name string, allowMultipleFragments bool) []string {
+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)
-	if l > 2 && !allowMultipleFragments {
-		return nil
-	}
 	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)
@@ -847,10 +1115,7 @@ func checkIPv6(data string) bool {
 
 // tokenIDFromName returns token ID (domain.root) from the provided name.
 func tokenIDFromName(name string) string {
-	fragments := splitAndCheck(name, true)
+	fragments := splitAndCheck(name)
-	if fragments == nil {
-		panic("invalid domain name format")
-	}
 
 	ctx := storage.GetReadOnlyContext()
 	sum := 0
@@ -909,3 +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

@@ -0,0 +1,12 @@
+name: "APE"
+permissions:
+  - methods: ["update"]
+safemethods:
+  - "getAdmin"
+  - "listChains"
+  - "getChain"
+  - "listChainsByPrefix"
+  - "listTargets"
+  - "listChainNames"
+  - "iteratorChainsByPrefix"
+  - "version"

policy/doc.go

@@ -0,0 +1,14 @@
+/*
+
+# Contract storage scheme
+
+ |   Key                                    | Value  |           Description             |
+ |------------------------------------------|--------|-----------------------------------|
+ | 'c' + uint16(len(container)) + container | []byte | Namespace chain                   |
+ | 'n' + uint16(len(namespace)) + namespace | []byte | Container chain                   |
+ | 'm' + entity name (namespace/container)  | []byte | Mapped name to an encoded number  |
+ | 'Counter'                                | uint64 | Integer counter used for mapping  |
+
+*/
+
+package policy

policy/policy_contract.go

@@ -0,0 +1,266 @@
+package policy
+
+import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
+	"github.com/nspcc-dev/neo-go/pkg/interop"
+	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+)
+
+// Kind represents the object the chain is attached to.
+// Currently only namespace and container are supported.
+type Kind byte
+
+const (
+	Namespace = 'n'
+	Container = 'c'
+	User      = 'u'
+	Group     = 'g'
+	IAM       = 'i'
+)
+
+const (
+	ownerKeyPrefix = 'o'
+)
+
+const (
+	mappingKeyPrefix = 'm'
+	counterKey       = "Counter"
+)
+
+const (
+	// ErrNotAuthorized is returned when the none of the transaction signers
+	// belongs to the list of autorized keys.
+	ErrNotAuthorized = "none of the signers is authorized to change the contract"
+)
+
+// _deploy function sets up initial list of inner ring public keys.
+func _deploy(data any, isUpdate bool) {
+	if isUpdate {
+		args := data.([]any)
+		common.CheckVersion(args[len(args)-1].(int))
+		return
+	}
+
+	args := data.(struct {
+		Admin interop.Hash160
+	})
+	ctx := storage.GetContext()
+	if args.Admin != nil {
+		if len(args.Admin) != 20 {
+			panic("invaliad admin hash length")
+		}
+		storage.Put(ctx, []byte{ownerKeyPrefix}, args.Admin)
+	}
+	storage.Put(ctx, counterKey, 0)
+}
+
+func checkAuthorization(ctx storage.Context) {
+	admin := getAdmin(ctx)
+	if admin != nil && runtime.CheckWitness(admin) {
+		return
+	}
+	if runtime.CheckWitness(common.AlphabetAddress()) {
+		return
+	}
+
+	panic(ErrNotAuthorized)
+}
+
+// Version returns the version of the contract.
+func Version() int {
+	return common.Version
+}
+
+// Update method updates contract source code and manifest. It can be invoked
+// by committee only.
+func Update(script []byte, manifest []byte, data any) {
+	if !common.HasUpdateAccess() {
+		panic("only committee can update contract")
+	}
+
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
+	runtime.Log("policy contract updated")
+}
+
+func SetAdmin(addr interop.Hash160) {
+	common.CheckAlphabetWitness()
+
+	ctx := storage.GetContext()
+	storage.Put(ctx, []byte{ownerKeyPrefix}, addr)
+}
+
+func GetAdmin() interop.Hash160 {
+	ctx := storage.GetReadOnlyContext()
+	return getAdmin(ctx)
+}
+
+func getAdmin(ctx storage.Context) interop.Hash160 {
+	return storage.Get(ctx, []byte{ownerKeyPrefix}).(interop.Hash160)
+}
+
+func storageKey(prefix Kind, counter int, name []byte) []byte {
+	key := append([]byte{byte(prefix)}, common.ToFixedWidth64(counter)...)
+	return append(key, name...)
+}
+
+func mapKey(kind Kind, name []byte) []byte {
+	return append([]byte{mappingKeyPrefix, byte(kind)}, name...)
+}
+
+// mapToNumeric maps a name to a number. That allows to keep more space in
+// a storage key shortening long names. Short entity
+// names are also mapped to prevent collisions in the map.
+func mapToNumeric(ctx storage.Context, kind Kind, name []byte) (mapped int, mappingExists bool) {
+	mKey := mapKey(kind, name)
+	numericID := storage.Get(ctx, mKey)
+	if numericID == nil {
+		return 0, false
+	}
+	mapped = numericID.(int)
+	mappingExists = true
+	return
+}
+
+// mapToNumericCreateIfNotExists maps a name to a number. That allows to keep
+// more space in a storage key shortening long names. Short entity
+// names are also mapped to prevent collisions in the map.
+// If a mapping cannot be found, then the method creates and returns it.
+// mapToNumericCreateIfNotExists is NOT applicable for a read-only context.
+func mapToNumericCreateIfNotExists(ctx storage.Context, kind Kind, name []byte) int {
+	mKey := mapKey(kind, name)
+	numericID := storage.Get(ctx, mKey)
+	if numericID == nil {
+		counter := storage.Get(ctx, counterKey).(int)
+		counter++
+		storage.Put(ctx, counterKey, counter)
+		storage.Put(ctx, mKey, counter)
+		return counter
+	}
+	return numericID.(int)
+}
+
+func AddChain(entity Kind, entityName string, name []byte, chain []byte) {
+	ctx := storage.GetContext()
+	checkAuthorization(ctx)
+
+	entityNameBytes := mapToNumericCreateIfNotExists(ctx, entity, []byte(entityName))
+	key := storageKey(entity, entityNameBytes, name)
+	storage.Put(ctx, key, chain)
+}
+
+func GetChain(entity Kind, entityName string, name []byte) []byte {
+	ctx := storage.GetReadOnlyContext()
+
+	entityNameBytes, exists := mapToNumeric(ctx, entity, []byte(entityName))
+	if !exists {
+		panic("not found")
+	}
+
+	key := storageKey(entity, entityNameBytes, name)
+	data := storage.Get(ctx, key).([]byte)
+	if data == nil {
+		panic("not found")
+	}
+
+	return data
+}
+
+func RemoveChain(entity Kind, entityName string, name []byte) {
+	ctx := storage.GetContext()
+	checkAuthorization(ctx)
+
+	entityNameNum, exists := mapToNumeric(ctx, entity, []byte(entityName))
+	if !exists {
+		return
+	}
+
+	key := storageKey(entity, entityNameNum, name)
+	storage.Delete(ctx, key)
+
+	// If no chains are left for the target, then remove the mapping.
+	prefix := append([]byte{byte(entity)}, common.ToFixedWidth64(entityNameNum)...)
+	it := storage.Find(ctx, prefix, storage.KeysOnly)
+	if !iterator.Next(it) {
+		storage.Delete(ctx, mapKey(entity, []byte(entityName)))
+	}
+}
+
+func RemoveChainsByPrefix(entity Kind, entityName string, name []byte) {
+	ctx := storage.GetContext()
+	checkAuthorization(ctx)
+
+	entityNameNum, exists := mapToNumeric(ctx, entity, []byte(entityName))
+	if !exists {
+		return
+	}
+
+	key := storageKey(entity, entityNameNum, name)
+	it := storage.Find(ctx, key, storage.KeysOnly)
+	for iterator.Next(it) {
+		storage.Delete(ctx, iterator.Value(it).([]byte))
+	}
+
+	// If no chains are left for the target, then remove the mapping.
+	prefix := append([]byte{byte(entity)}, common.ToFixedWidth64(entityNameNum)...)
+	it = storage.Find(ctx, prefix, storage.KeysOnly)
+	if !iterator.Next(it) {
+		storage.Delete(ctx, mapKey(entity, []byte(entityName)))
+	}
+}
+
+// ListChains lists all chains for the namespace by prefix.
+// container may be empty.
+func ListChains(namespace, container string, name []byte) [][]byte {
+	result := ListChainsByPrefix(Namespace, namespace, name)
+
+	if container != "" {
+		result = append(result, ListChainsByPrefix(Container, container, name)...)
+	}
+
+	return result
+}
+
+// ListChainsByPrefix list all chains for the provided kind and entity by prefix.
+func ListChainsByPrefix(entity Kind, entityName string, prefix []byte) [][]byte {
+	ctx := storage.GetReadOnlyContext()
+
+	result := [][]byte{}
+
+	entityNameBytes, exists := mapToNumeric(ctx, entity, []byte(entityName))
+	if !exists {
+		return result
+	}
+
+	keyPrefix := storageKey(entity, entityNameBytes, prefix)
+	it := storage.Find(ctx, keyPrefix, storage.ValuesOnly)
+	for iterator.Next(it) {
+		result = append(result, iterator.Value(it).([]byte))
+	}
+
+	return result
+}
+
+func IteratorChainsByPrefix(entity Kind, entityName string, prefix []byte) iterator.Iterator {
+	ctx := storage.GetReadOnlyContext()
+	id, _ := mapToNumeric(ctx, entity, []byte(entityName))
+	keyPrefix := storageKey(entity, id, prefix)
+	return storage.Find(ctx, keyPrefix, storage.ValuesOnly)
+}
+
+// ListTargets iterates over targets for which rules are defined.
+func ListTargets(entity Kind) iterator.Iterator {
+	ctx := storage.GetReadOnlyContext()
+	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)
+}

processing/config.yml

@@ -1,4 +1,4 @@
-name: "NeoFS Multi Signature Processing"
+name: "Multi Signature Processing"
 safemethods: ["verify", "version"]
 permissions:
   - methods: ["update"]

processing/doc.go

@@ -1,5 +1,5 @@
 /*
-Processing contract is a contract deployed in NeoFS mainchain.
+Processing contract is a contract deployed in FrostFS mainchain.
 
 Processing contract pays for all multisignature transaction executions when notary
 service is enabled in the mainchain. Notary service prepares multisigned transactions,
@@ -8,15 +8,21 @@ ask Alphabet nodes to pay for these transactions: nodes can change over time,
 some nodes will spend sidechain GAS faster. It leads to economic instability.
 
 Processing contract exists to solve this issue. At the Withdraw invocation of
-NeoFS contract, a user pays fee directly to this contract. This fee is used to
+FrostFS contract, a user pays fee directly to this contract. This fee is used to
-pay for Cheque invocation of NeoFS contract that returns mainchain GAS back
+pay for Cheque invocation of FrostFS contract that returns mainchain GAS back
 to the user. The address of the Processing contract is used as the first signer in
 the multisignature transaction. Therefore, NeoVM executes Verify method of the
 contract and if invocation is verified, Processing contract pays for the
 execution.
 
-Contract notifications
+# Contract notifications
 
 Processing contract does not produce notifications to process.
+
+# Contract storage scheme
+
+	|   Key                       | Value      |           Description            |
+	|-----------------------------|------------|----------------------------------|
+	| `frostfsScriptHash`         | Hash160    | frostFS contract hash            |
 */
 package processing

processing/processing_contract.go

@@ -1,56 +1,36 @@
 package processing
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
-	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
-)
-
-const (
-	neofsContractKey = "neofsScriptHash"
-
-	multiaddrMethod = "alphabetAddress"
 )
 
 // OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
-func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
+func OnNEP17Payment(from interop.Hash160, amount int, data any) {
 	caller := runtime.GetCallingScriptHash()
 	if !common.BytesEqual(caller, []byte(gas.Hash)) {
 		common.AbortWithMessage("processing contract accepts GAS only")
 	}
 }
 
-func _deploy(data interface{}, isUpdate bool) {
+func _deploy(data any, isUpdate bool) {
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
 
-	args := data.(struct {
-		addrNeoFS interop.Hash160
-	})
-
-	ctx := storage.GetContext()
-
-	if len(args.addrNeoFS) != interop.Hash160Len {
-		panic("incorrect length of contract script hash")
-	}
-
-	storage.Put(ctx, neofsContractKey, args.addrNeoFS)
-
 	runtime.Log("processing contract initialized")
 }
 
 // Update method updates contract source code and manifest. It can be invoked
 // only by the sidechain committee.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	blockHeight := ledger.CurrentIndex()
 	alphabetKeys := roles.GetDesignatedByRole(roles.NeoFSAlphabet, uint32(blockHeight+1))
 	alphabetCommittee := common.Multiaddress(alphabetKeys, true)
@@ -59,19 +39,14 @@ func Update(script []byte, manifest []byte, data interface{}) {
 		panic("only side chain committee can update contract")
 	}
 
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-		contract.All, script, manifest, common.AppendVersion(data))
 	runtime.Log("processing contract updated")
 }
 
 // Verify method returns true if transaction contains valid multisignature of
 // Alphabet nodes of the Inner Ring.
 func Verify() bool {
-	ctx := storage.GetContext()
+	return runtime.CheckWitness(common.AlphabetAddress())
-	neofsContractAddr := storage.Get(ctx, neofsContractKey).(interop.Hash160)
-	multiaddr := contract.Call(neofsContractAddr, multiaddrMethod, contract.ReadOnly).(interop.Hash160)
-
-	return runtime.CheckWitness(multiaddr)
 }
 
 // Version returns the version of the contract.

proxy/config.yml

@@ -1,4 +1,4 @@
-name: "NeoFS Notary Proxy"
+name: "Notary Proxy"
 safemethods: ["verify", "version"]
 permissions:
   - methods: ["update"]

proxy/doc.go

@@ -1,5 +1,5 @@
 /*
-Proxy contract is a contract deployed in NeoFS sidechain.
+Proxy contract is a contract deployed in FrostFS sidechain.
 
 Proxy contract pays for all multisignature transaction executions when notary
 service is enabled in the sidechain. Notary service prepares multisigned transactions,
@@ -14,8 +14,12 @@ Proxy contract is used as the first signer in a multisignature transaction.
 Therefore, NeoVM executes Verify method of the contract; and if invocation is
 verified, Proxy contract pays for the execution.
 
-Contract notifications
+# Contract notifications
 
 Proxy contract does not produce notifications to process.
+
+# Contract storage scheme
+
+Proxy contract does not use storage
 */
 package proxy

proxy/proxy_contract.go

@@ -1,26 +1,36 @@
 package proxy
 
 import (
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"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/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
-	"github.com/nspcc-dev/neofs-contract/common"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
 
+const accountKeyPrefix = 'a'
+
 // OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
-func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
+func OnNEP17Payment(from interop.Hash160, amount int, data any) {
 	caller := runtime.GetCallingScriptHash()
 	if !common.BytesEqual(caller, []byte(gas.Hash)) {
 		common.AbortWithMessage("proxy contract accepts GAS only")
 	}
 }
 
-func _deploy(data interface{}, isUpdate bool) {
+// OnNEP11Payment is a callback for NEP-11 compatible NNS contract.
+func OnNEP11Payment(from interop.Hash160, amount int, token []byte, data any) {
+	caller := runtime.GetCallingScriptHash()
+	nnsHash := management.GetContractByID(1).Hash
+	if !common.BytesEqual(caller, []byte(nnsHash)) {
+		common.AbortWithMessage("proxy contract accepts NNS tokens only")
+	}
+}
+
+func _deploy(data any, isUpdate bool) {
 	if isUpdate {
-		args := data.([]interface{})
+		args := data.([]any)
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
@@ -30,31 +40,56 @@ func _deploy(data interface{}, isUpdate bool) {
 
 // Update method updates contract source code and manifest. It can be invoked
 // only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
+func Update(script []byte, manifest []byte, data any) {
 	if !common.HasUpdateAccess() {
 		panic("only committee can update contract")
 	}
 
-	contract.Call(interop.Hash160(management.Hash), "update",
+	management.UpdateWithData(script, manifest, common.AppendVersion(data))
-		contract.All, script, manifest, common.AppendVersion(data))
 	runtime.Log("proxy contract updated")
 }
 
 // Verify method returns true if transaction contains valid multisignature of
-// Alphabet nodes of the Inner Ring.
+// Alphabet nodes of the Inner Ring or any of the trusted accounts added via AddAccount.
 func Verify() bool {
-	alphabet := neo.GetCommittee()
+	if !runtime.GetScriptContainer().Sender.Equals(runtime.GetExecutingScriptHash()) {
-	sig := common.Multiaddress(alphabet, false)
+		return false
-
-	if !runtime.CheckWitness(sig) {
-		sig = common.Multiaddress(alphabet, true)
-		return runtime.CheckWitness(sig)
 	}
 
+	signers := runtime.CurrentSigners()
+	ctx := storage.GetReadOnlyContext()
+	for i := 1; /* skip sender */ i < len(signers); i++ {
+		if storage.Get(ctx, append([]byte{accountKeyPrefix}, signers[i].Account...)) != nil {
 			return true
 		}
+	}
+
+	if runtime.CheckWitness(common.CommitteeAddress()) {
+		return true
+	}
+
+	if runtime.CheckWitness(common.AlphabetAddress()) {
+		return true
+	}
+
+	return false
+}
 
 // Version returns the version of the contract.
 func Version() int {
 	return common.Version
 }
+
+func AddAccount(addr interop.Hash160) {
+	common.CheckWitness(common.CommitteeAddress())
+
+	ctx := storage.GetContext()
+	storage.Put(ctx, append([]byte{accountKeyPrefix}, addr...), []byte{1})
+}
+
+func RemoveAccount(addr interop.Hash160) {
+	common.CheckWitness(common.CommitteeAddress())
+
+	ctx := storage.GetContext()
+	storage.Delete(ctx, append([]byte{accountKeyPrefix}, addr...))
+}

reputation/config.yml

@@ -1,13 +0,0 @@
-name: "NeoFS Reputation"
-safemethods: ["get", "getByID", "listByEpoch"]
-permissions:
-  - methods: ["update"]
-events:
-  - name: reputationPut
-    parameters:
-      - name: epoch
-        type: Integer
-      - name: peerID
-        type: ByteArray
-      - name: value
-        type: ByteArray

reputation/doc.go

@@ -1,17 +0,0 @@
-/*
-Reputation contract is a contract deployed in NeoFS sidechain.
-
-Inner Ring nodes produce data audit for each container during each epoch. In the end,
-nodes produce DataAuditResult structure that contains information about audit
-progress. Reputation contract provides storage for such structures and simple
-interface to iterate over available DataAuditResults on specified epoch.
-
-During settlement process, Alphabet nodes fetch all DataAuditResult structures
-from the epoch and execute balance transfers from data owners to Storage and
-Inner Ring nodes if data audit succeeds.
-
-Contract notifications
-
-Reputation contract does not produce notifications to process.
-*/
-package reputation

reputation/reputation_contract.go

@@ -1,162 +0,0 @@
-package reputation
-
-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/convert"
-	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
-	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
-	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neofs-contract/common"
-)
-
-const (
-	notaryDisabledKey     = "notary"
-	reputationValuePrefix = 'r'
-	reputationCountPrefix = 'c'
-)
-
-func _deploy(data interface{}, isUpdate bool) {
-	ctx := storage.GetContext()
-
-	if isUpdate {
-		args := data.([]interface{})
-		common.CheckVersion(args[len(args)-1].(int))
-		return
-	}
-
-	args := data.(struct {
-		notaryDisabled bool
-	})
-
-	// initialize the way to collect signatures
-	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
-	if args.notaryDisabled {
-		common.InitVote(ctx)
-		runtime.Log("reputation contract notary disabled")
-	}
-
-	runtime.Log("reputation contract initialized")
-}
-
-// Update method updates contract source code and manifest. It can be invoked
-// only by committee.
-func Update(script []byte, manifest []byte, data interface{}) {
-	if !common.HasUpdateAccess() {
-		panic("only committee can update contract")
-	}
-
-	contract.Call(interop.Hash160(management.Hash), "update",
-		contract.All, script, manifest, common.AppendVersion(data))
-	runtime.Log("reputation contract updated")
-}
-
-// Put method saves DataAuditResult in contract storage. It can be invoked only by
-// Inner Ring nodes. It does not require multisignature invocations.
-//
-// Epoch is the epoch number when DataAuditResult structure was generated.
-// PeerID contains public keys of the Inner Ring node that has produced DataAuditResult.
-// Value contains a stable marshaled structure of DataAuditResult.
-func Put(epoch int, peerID []byte, value []byte) {
-	ctx := storage.GetContext()
-	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
-
-	var ( // for invocation collection without notary
-		alphabet     []interop.PublicKey
-		nodeKey      []byte
-		alphabetCall bool
-	)
-
-	if notaryDisabled {
-		alphabet = common.AlphabetNodes()
-		nodeKey = common.InnerRingInvoker(alphabet)
-		alphabetCall = len(nodeKey) != 0
-	} else {
-		multiaddr := common.AlphabetAddress()
-		alphabetCall = runtime.CheckWitness(multiaddr)
-	}
-
-	if !alphabetCall {
-		runtime.Notify("reputationPut", epoch, peerID, value)
-		return
-	}
-
-	id := storageID(epoch, peerID)
-	if notaryDisabled {
-		threshold := len(alphabet)*2/3 + 1
-
-		n := common.Vote(ctx, id, nodeKey)
-		if n < threshold {
-			return
-		}
-
-		common.RemoveVotes(ctx, id)
-	}
-
-	key := getReputationKey(reputationCountPrefix, id)
-	rawCnt := storage.Get(ctx, key)
-	cnt := 0
-	if rawCnt != nil {
-		cnt = rawCnt.(int)
-	}
-	cnt++
-	storage.Put(ctx, key, cnt)
-
-	key[0] = reputationValuePrefix
-	key = append(key, convert.ToBytes(cnt)...)
-	storage.Put(ctx, key, value)
-}
-
-// Get method returns a list of all stable marshaled DataAuditResult structures
-// produced by the specified Inner Ring node during the specified epoch.
-func Get(epoch int, peerID []byte) [][]byte {
-	id := storageID(epoch, peerID)
-	return GetByID(id)
-}
-
-// GetByID method returns a list of all stable marshaled DataAuditResult with
-// the specified id. Use ListByEpoch method to obtain the id.
-func GetByID(id []byte) [][]byte {
-	ctx := storage.GetReadOnlyContext()
-
-	var data [][]byte
-
-	it := storage.Find(ctx, getReputationKey(reputationValuePrefix, id), storage.ValuesOnly)
-	for iterator.Next(it) {
-		data = append(data, iterator.Value(it).([]byte))
-	}
-	return data
-}
-
-func getReputationKey(prefix byte, id []byte) []byte {
-	return append([]byte{prefix}, id...)
-}
-
-// ListByEpoch returns a list of IDs that may be used to get reputation data
-// with GetByID method.
-func ListByEpoch(epoch int) [][]byte {
-	ctx := storage.GetReadOnlyContext()
-	key := getReputationKey(reputationCountPrefix, convert.ToBytes(epoch))
-	it := storage.Find(ctx, key, storage.KeysOnly)
-
-	var result [][]byte
-
-	for iterator.Next(it) {
-		key := iterator.Value(it).([]byte) // iterator MUST BE `storage.KeysOnly`
-		result = append(result, key[1:])
-	}
-
-	return result
-}
-
-// Version returns the version of the contract.
-func Version() int {
-	return common.Version
-}
-
-func storageID(epoch int, peerID []byte) []byte {
-	var buf interface{} = epoch
-
-	return append(buf.([]byte), peerID...)
-}

rpcclient/alphabet/client.go

@@ -0,0 +1,138 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package alphabet contains RPC wrappers for Alphabet contract.
+package alphabet
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"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"
+	"math/big"
+)
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// Gas invokes `gas` method of contract.
+func (c *ContractReader) Gas() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "gas"))
+}
+
+// Name invokes `name` method of contract.
+func (c *ContractReader) Name() (string, error) {
+	return unwrap.UTF8String(c.invoker.Call(c.hash, "name"))
+}
+
+// Neo invokes `neo` method of contract.
+func (c *ContractReader) Neo() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "neo"))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// Emit creates a transaction invoking `emit` 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) Emit() (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "emit")
+}
+
+// EmitTransaction creates a transaction invoking `emit` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) EmitTransaction() (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "emit")
+}
+
+// EmitUnsigned creates a transaction invoking `emit` 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) EmitUnsigned() (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "emit", nil)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}
+
+// Vote creates a transaction invoking `vote` 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) Vote(epoch *big.Int, candidates []any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "vote", epoch, candidates)
+}
+
+// VoteTransaction creates a transaction invoking `vote` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) VoteTransaction(epoch *big.Int, candidates []any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "vote", epoch, candidates)
+}
+
+// VoteUnsigned creates a transaction invoking `vote` 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) VoteUnsigned(epoch *big.Int, candidates []any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "vote", nil, epoch, candidates)
+}

rpcclient/balance/client.go

@@ -0,0 +1,549 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package balance contains RPC wrappers for Balance contract.
+package balance
+
+import (
+	"errors"
+	"fmt"
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/nep17"
+	"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"
+	"math/big"
+)
+
+// LockEvent represents "Lock" event emitted by the contract.
+type LockEvent struct {
+	TxID   []byte
+	From   util.Uint160
+	To     util.Uint160
+	Amount *big.Int
+	Until  *big.Int
+}
+
+// TransferXEvent represents "TransferX" event emitted by the contract.
+type TransferXEvent struct {
+	From    util.Uint160
+	To      util.Uint160
+	Amount  *big.Int
+	Details []byte
+}
+
+// MintEvent represents "Mint" event emitted by the contract.
+type MintEvent struct {
+	To     util.Uint160
+	Amount *big.Int
+}
+
+// BurnEvent represents "Burn" event emitted by the contract.
+type BurnEvent struct {
+	From   util.Uint160
+	Amount *big.Int
+}
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	nep17.Invoker
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	nep17.Actor
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	nep17.TokenReader
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	nep17.TokenWriter
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{*nep17.NewReader(invoker, hash), invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	var nep17t = nep17.New(actor, hash)
+	return &Contract{ContractReader{nep17t.TokenReader, actor, hash}, nep17t.TokenWriter, actor, hash}
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// Burn creates a transaction invoking `burn` 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) Burn(from util.Uint160, amount *big.Int, txDetails []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "burn", from, amount, txDetails)
+}
+
+// BurnTransaction creates a transaction invoking `burn` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) BurnTransaction(from util.Uint160, amount *big.Int, txDetails []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "burn", from, amount, txDetails)
+}
+
+// BurnUnsigned creates a transaction invoking `burn` 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) BurnUnsigned(from util.Uint160, amount *big.Int, txDetails []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "burn", nil, from, amount, txDetails)
+}
+
+// Lock creates a transaction invoking `lock` 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) Lock(txDetails []byte, from util.Uint160, to util.Uint160, amount *big.Int, until *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "lock", txDetails, from, to, amount, until)
+}
+
+// LockTransaction creates a transaction invoking `lock` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) LockTransaction(txDetails []byte, from util.Uint160, to util.Uint160, amount *big.Int, until *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "lock", txDetails, from, to, amount, until)
+}
+
+// LockUnsigned creates a transaction invoking `lock` 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) LockUnsigned(txDetails []byte, from util.Uint160, to util.Uint160, amount *big.Int, until *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "lock", nil, txDetails, from, to, amount, until)
+}
+
+// Mint creates a transaction invoking `mint` 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) Mint(to util.Uint160, amount *big.Int, txDetails []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "mint", to, amount, txDetails)
+}
+
+// MintTransaction creates a transaction invoking `mint` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) MintTransaction(to util.Uint160, amount *big.Int, txDetails []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "mint", to, amount, txDetails)
+}
+
+// MintUnsigned creates a transaction invoking `mint` 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) MintUnsigned(to util.Uint160, amount *big.Int, txDetails []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "mint", nil, to, amount, txDetails)
+}
+
+// NewEpoch creates a transaction invoking `newEpoch` 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) NewEpoch(epochNum *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "newEpoch", epochNum)
+}
+
+// NewEpochTransaction creates a transaction invoking `newEpoch` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) NewEpochTransaction(epochNum *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "newEpoch", epochNum)
+}
+
+// NewEpochUnsigned creates a transaction invoking `newEpoch` 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) NewEpochUnsigned(epochNum *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "newEpoch", nil, epochNum)
+}
+
+// TransferX creates a transaction invoking `transferX` 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) TransferX(from util.Uint160, to util.Uint160, amount *big.Int, details []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "transferX", from, to, amount, details)
+}
+
+// TransferXTransaction creates a transaction invoking `transferX` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) TransferXTransaction(from util.Uint160, to util.Uint160, amount *big.Int, details []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "transferX", from, to, amount, details)
+}
+
+// TransferXUnsigned creates a transaction invoking `transferX` 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) TransferXUnsigned(from util.Uint160, to util.Uint160, amount *big.Int, details []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "transferX", nil, from, to, amount, details)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}
+
+// LockEventsFromApplicationLog retrieves a set of all emitted events
+// with "Lock" name from the provided [result.ApplicationLog].
+func LockEventsFromApplicationLog(log *result.ApplicationLog) ([]*LockEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*LockEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Lock" {
+				continue
+			}
+			event := new(LockEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize LockEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to LockEvent or
+// returns an error if it's not possible to do to so.
+func (e *LockEvent) 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) != 5 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.TxID, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field TxID: %w", err)
+	}
+
+	index++
+	e.From, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field From: %w", err)
+	}
+
+	index++
+	e.To, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field To: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	index++
+	e.Until, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Until: %w", err)
+	}
+
+	return nil
+}
+
+// TransferXEventsFromApplicationLog retrieves a set of all emitted events
+// with "TransferX" name from the provided [result.ApplicationLog].
+func TransferXEventsFromApplicationLog(log *result.ApplicationLog) ([]*TransferXEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*TransferXEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "TransferX" {
+				continue
+			}
+			event := new(TransferXEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize TransferXEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to TransferXEvent or
+// returns an error if it's not possible to do to so.
+func (e *TransferXEvent) 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) != 4 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.From, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field From: %w", err)
+	}
+
+	index++
+	e.To, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field To: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	index++
+	e.Details, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field Details: %w", err)
+	}
+
+	return nil
+}
+
+// MintEventsFromApplicationLog retrieves a set of all emitted events
+// with "Mint" name from the provided [result.ApplicationLog].
+func MintEventsFromApplicationLog(log *result.ApplicationLog) ([]*MintEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*MintEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Mint" {
+				continue
+			}
+			event := new(MintEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize MintEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to MintEvent or
+// returns an error if it's not possible to do to so.
+func (e *MintEvent) 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.To, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field To: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	return nil
+}
+
+// BurnEventsFromApplicationLog retrieves a set of all emitted events
+// with "Burn" name from the provided [result.ApplicationLog].
+func BurnEventsFromApplicationLog(log *result.ApplicationLog) ([]*BurnEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*BurnEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Burn" {
+				continue
+			}
+			event := new(BurnEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize BurnEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to BurnEvent or
+// returns an error if it's not possible to do to so.
+func (e *BurnEvent) 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.From, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field From: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	return nil
+}

rpcclient/container/client.go

@@ -0,0 +1,661 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package container contains RPC wrappers for Container contract.
+package container
+
+import (
+	"crypto/elliptic"
+	"errors"
+	"fmt"
+	"github.com/google/uuid"
+	"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/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"math/big"
+)
+
+// PutSuccessEvent represents "PutSuccess" event emitted by the contract.
+type PutSuccessEvent struct {
+	ContainerID util.Uint256
+	PublicKey   *keys.PublicKey
+}
+
+// DeleteSuccessEvent represents "DeleteSuccess" event emitted by the contract.
+type DeleteSuccessEvent struct {
+	ContainerID []byte
+}
+
+// SetEACLSuccessEvent represents "SetEACLSuccess" event emitted by the contract.
+type SetEACLSuccessEvent struct {
+	ContainerID []byte
+	PublicKey   *keys.PublicKey
+}
+
+// StartEstimationEvent represents "StartEstimation" event emitted by the contract.
+type StartEstimationEvent struct {
+	Epoch *big.Int
+}
+
+// StopEstimationEvent represents "StopEstimation" event emitted by the contract.
+type StopEstimationEvent struct {
+	Epoch *big.Int
+}
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+	CallAndExpandIterator(contract util.Uint160, method string, maxItems int, params ...any) (*result.Invoke, error)
+	TerminateSession(sessionID uuid.UUID) error
+	TraverseIterator(sessionID uuid.UUID, iterator *result.Iterator, num int) ([]stackitem.Item, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// ContainersOf invokes `containersOf` method of contract.
+func (c *ContractReader) ContainersOf(owner []byte) (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "containersOf", owner))
+}
+
+// ContainersOfExpanded is similar to ContainersOf (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) ContainersOfExpanded(owner []byte, _numOfIteratorItems int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "containersOf", _numOfIteratorItems, owner))
+}
+
+// Count invokes `count` method of contract.
+func (c *ContractReader) Count() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "count"))
+}
+
+// DeletionInfo invokes `deletionInfo` method of contract.
+func (c *ContractReader) DeletionInfo(containerID []byte) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "deletionInfo", containerID))
+}
+
+// EACL invokes `eACL` method of contract.
+func (c *ContractReader) EACL(containerID []byte) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "eACL", containerID))
+}
+
+// Get invokes `get` method of contract.
+func (c *ContractReader) Get(containerID []byte) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "get", containerID))
+}
+
+// GetContainerSize invokes `getContainerSize` method of contract.
+func (c *ContractReader) GetContainerSize(id []byte) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "getContainerSize", id))
+}
+
+// IterateContainerSizes invokes `iterateContainerSizes` method of contract.
+func (c *ContractReader) IterateContainerSizes(epoch *big.Int) (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "iterateContainerSizes", epoch))
+}
+
+// IterateContainerSizesExpanded is similar to IterateContainerSizes (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) IterateContainerSizesExpanded(epoch *big.Int, _numOfIteratorItems int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "iterateContainerSizes", _numOfIteratorItems, epoch))
+}
+
+// List invokes `list` method of contract.
+func (c *ContractReader) List(owner []byte) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "list", owner))
+}
+
+// ListContainerSizes invokes `listContainerSizes` method of contract.
+func (c *ContractReader) ListContainerSizes(epoch *big.Int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "listContainerSizes", epoch))
+}
+
+// Owner invokes `owner` method of contract.
+func (c *ContractReader) Owner(containerID []byte) ([]byte, error) {
+	return unwrap.Bytes(c.invoker.Call(c.hash, "owner", containerID))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// Delete creates a transaction invoking `delete` 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) Delete(containerID []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "delete", containerID, signature, publicKey, token)
+}
+
+// DeleteTransaction creates a transaction invoking `delete` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) DeleteTransaction(containerID []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "delete", containerID, signature, publicKey, token)
+}
+
+// DeleteUnsigned creates a transaction invoking `delete` 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) DeleteUnsigned(containerID []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "delete", nil, containerID, signature, publicKey, token)
+}
+
+// NewEpoch creates a transaction invoking `newEpoch` 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) NewEpoch(epochNum *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "newEpoch", epochNum)
+}
+
+// NewEpochTransaction creates a transaction invoking `newEpoch` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) NewEpochTransaction(epochNum *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "newEpoch", epochNum)
+}
+
+// NewEpochUnsigned creates a transaction invoking `newEpoch` 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) NewEpochUnsigned(epochNum *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "newEpoch", nil, epochNum)
+}
+
+// Put creates a transaction invoking `put` 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) Put(container []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "put", container, signature, publicKey, token)
+}
+
+// PutTransaction creates a transaction invoking `put` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) PutTransaction(container []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "put", container, signature, publicKey, token)
+}
+
+// PutUnsigned creates a transaction invoking `put` 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) PutUnsigned(container []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "put", nil, container, signature, publicKey, token)
+}
+
+// PutContainerSize creates a transaction invoking `putContainerSize` 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) PutContainerSize(epoch *big.Int, cid []byte, usedSize *big.Int, pubKey *keys.PublicKey) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "putContainerSize", epoch, cid, usedSize, pubKey)
+}
+
+// PutContainerSizeTransaction creates a transaction invoking `putContainerSize` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) PutContainerSizeTransaction(epoch *big.Int, cid []byte, usedSize *big.Int, pubKey *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "putContainerSize", epoch, cid, usedSize, pubKey)
+}
+
+// PutContainerSizeUnsigned creates a transaction invoking `putContainerSize` 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) PutContainerSizeUnsigned(epoch *big.Int, cid []byte, usedSize *big.Int, pubKey *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "putContainerSize", nil, epoch, cid, usedSize, pubKey)
+}
+
+// PutNamed creates a transaction invoking `putNamed` 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) PutNamed(container []byte, signature []byte, publicKey *keys.PublicKey, token []byte, name string, zone string) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "putNamed", container, signature, publicKey, token, name, zone)
+}
+
+// PutNamedTransaction creates a transaction invoking `putNamed` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) PutNamedTransaction(container []byte, signature []byte, publicKey *keys.PublicKey, token []byte, name string, zone string) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "putNamed", container, signature, publicKey, token, name, zone)
+}
+
+// PutNamedUnsigned creates a transaction invoking `putNamed` 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) PutNamedUnsigned(container []byte, signature []byte, publicKey *keys.PublicKey, token []byte, name string, zone string) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "putNamed", nil, container, signature, publicKey, token, name, zone)
+}
+
+// SetEACL creates a transaction invoking `setEACL` 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) SetEACL(eACL []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setEACL", eACL, signature, publicKey, token)
+}
+
+// SetEACLTransaction creates a transaction invoking `setEACL` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetEACLTransaction(eACL []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setEACL", eACL, signature, publicKey, token)
+}
+
+// SetEACLUnsigned creates a transaction invoking `setEACL` 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) SetEACLUnsigned(eACL []byte, signature []byte, publicKey *keys.PublicKey, token []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setEACL", nil, eACL, signature, publicKey, token)
+}
+
+// StartContainerEstimation creates a transaction invoking `startContainerEstimation` 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) StartContainerEstimation(epoch *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "startContainerEstimation", epoch)
+}
+
+// StartContainerEstimationTransaction creates a transaction invoking `startContainerEstimation` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) StartContainerEstimationTransaction(epoch *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "startContainerEstimation", epoch)
+}
+
+// StartContainerEstimationUnsigned creates a transaction invoking `startContainerEstimation` 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) StartContainerEstimationUnsigned(epoch *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "startContainerEstimation", nil, epoch)
+}
+
+// StopContainerEstimation creates a transaction invoking `stopContainerEstimation` 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) StopContainerEstimation(epoch *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "stopContainerEstimation", epoch)
+}
+
+// StopContainerEstimationTransaction creates a transaction invoking `stopContainerEstimation` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) StopContainerEstimationTransaction(epoch *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "stopContainerEstimation", epoch)
+}
+
+// StopContainerEstimationUnsigned creates a transaction invoking `stopContainerEstimation` 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) StopContainerEstimationUnsigned(epoch *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "stopContainerEstimation", nil, epoch)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}
+
+// PutSuccessEventsFromApplicationLog retrieves a set of all emitted events
+// with "PutSuccess" name from the provided [result.ApplicationLog].
+func PutSuccessEventsFromApplicationLog(log *result.ApplicationLog) ([]*PutSuccessEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*PutSuccessEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "PutSuccess" {
+				continue
+			}
+			event := new(PutSuccessEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize PutSuccessEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to PutSuccessEvent or
+// returns an error if it's not possible to do to so.
+func (e *PutSuccessEvent) 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.ContainerID, err = func(item stackitem.Item) (util.Uint256, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint256{}, err
+		}
+		u, err := util.Uint256DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint256{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field ContainerID: %w", err)
+	}
+
+	index++
+	e.PublicKey, err = func(item stackitem.Item) (*keys.PublicKey, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		k, err := keys.NewPublicKeyFromBytes(b, elliptic.P256())
+		if err != nil {
+			return nil, err
+		}
+		return k, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field PublicKey: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteSuccessEventsFromApplicationLog retrieves a set of all emitted events
+// with "DeleteSuccess" name from the provided [result.ApplicationLog].
+func DeleteSuccessEventsFromApplicationLog(log *result.ApplicationLog) ([]*DeleteSuccessEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*DeleteSuccessEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "DeleteSuccess" {
+				continue
+			}
+			event := new(DeleteSuccessEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize DeleteSuccessEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to DeleteSuccessEvent or
+// returns an error if it's not possible to do to so.
+func (e *DeleteSuccessEvent) 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.ContainerID, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field ContainerID: %w", err)
+	}
+
+	return nil
+}
+
+// SetEACLSuccessEventsFromApplicationLog retrieves a set of all emitted events
+// with "SetEACLSuccess" name from the provided [result.ApplicationLog].
+func SetEACLSuccessEventsFromApplicationLog(log *result.ApplicationLog) ([]*SetEACLSuccessEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*SetEACLSuccessEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "SetEACLSuccess" {
+				continue
+			}
+			event := new(SetEACLSuccessEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize SetEACLSuccessEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to SetEACLSuccessEvent or
+// returns an error if it's not possible to do to so.
+func (e *SetEACLSuccessEvent) 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.ContainerID, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field ContainerID: %w", err)
+	}
+
+	index++
+	e.PublicKey, err = func(item stackitem.Item) (*keys.PublicKey, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		k, err := keys.NewPublicKeyFromBytes(b, elliptic.P256())
+		if err != nil {
+			return nil, err
+		}
+		return k, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field PublicKey: %w", err)
+	}
+
+	return nil
+}
+
+// StartEstimationEventsFromApplicationLog retrieves a set of all emitted events
+// with "StartEstimation" name from the provided [result.ApplicationLog].
+func StartEstimationEventsFromApplicationLog(log *result.ApplicationLog) ([]*StartEstimationEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*StartEstimationEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "StartEstimation" {
+				continue
+			}
+			event := new(StartEstimationEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize StartEstimationEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to StartEstimationEvent or
+// returns an error if it's not possible to do to so.
+func (e *StartEstimationEvent) 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.Epoch, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Epoch: %w", err)
+	}
+
+	return nil
+}
+
+// StopEstimationEventsFromApplicationLog retrieves a set of all emitted events
+// with "StopEstimation" name from the provided [result.ApplicationLog].
+func StopEstimationEventsFromApplicationLog(log *result.ApplicationLog) ([]*StopEstimationEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*StopEstimationEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "StopEstimation" {
+				continue
+			}
+			event := new(StopEstimationEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize StopEstimationEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to StopEstimationEvent or
+// returns an error if it's not possible to do to so.
+func (e *StopEstimationEvent) 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.Epoch, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Epoch: %w", err)
+	}
+
+	return nil
+}

rpcclient/frostfs/client.go

@@ -0,0 +1,846 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package frostfs contains RPC wrappers for FrostFS contract.
+package frostfs
+
+import (
+	"errors"
+	"fmt"
+	"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/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"math/big"
+)
+
+// DepositEvent represents "Deposit" event emitted by the contract.
+type DepositEvent struct {
+	From     util.Uint160
+	Amount   *big.Int
+	Receiver util.Uint160
+	TxHash   util.Uint256
+}
+
+// WithdrawEvent represents "Withdraw" event emitted by the contract.
+type WithdrawEvent struct {
+	User   util.Uint160
+	Amount *big.Int
+	TxHash util.Uint256
+}
+
+// ChequeEvent represents "Cheque" event emitted by the contract.
+type ChequeEvent struct {
+	Id          []byte
+	User        util.Uint160
+	Amount      *big.Int
+	LockAccount []byte
+}
+
+// BindEvent represents "Bind" event emitted by the contract.
+type BindEvent struct {
+	User []byte
+	Keys []any
+}
+
+// UnbindEvent represents "Unbind" event emitted by the contract.
+type UnbindEvent struct {
+	User []byte
+	Keys []any
+}
+
+// AlphabetUpdateEvent represents "AlphabetUpdate" event emitted by the contract.
+type AlphabetUpdateEvent struct {
+	Id       []byte
+	Alphabet []any
+}
+
+// SetConfigEvent represents "SetConfig" event emitted by the contract.
+type SetConfigEvent struct {
+	Id    []byte
+	Key   []byte
+	Value []byte
+}
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// Config invokes `config` method of contract.
+func (c *ContractReader) Config(key []byte) (any, error) {
+	return func(item stackitem.Item, err error) (any, error) {
+		if err != nil {
+			return nil, err
+		}
+		return item.Value(), error(nil)
+	}(unwrap.Item(c.invoker.Call(c.hash, "config", key)))
+}
+
+// InnerRingCandidates invokes `innerRingCandidates` method of contract.
+func (c *ContractReader) InnerRingCandidates() ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "innerRingCandidates"))
+}
+
+// ListConfig invokes `listConfig` method of contract.
+func (c *ContractReader) ListConfig() ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "listConfig"))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// Bind creates a transaction invoking `bind` 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) Bind(user []byte, keys []any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "bind", user, keys)
+}
+
+// BindTransaction creates a transaction invoking `bind` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) BindTransaction(user []byte, keys []any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "bind", user, keys)
+}
+
+// BindUnsigned creates a transaction invoking `bind` 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) BindUnsigned(user []byte, keys []any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "bind", nil, user, keys)
+}
+
+// Cheque creates a transaction invoking `cheque` 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) Cheque(id []byte, user util.Uint160, amount *big.Int, lockAcc []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "cheque", id, user, amount, lockAcc)
+}
+
+// ChequeTransaction creates a transaction invoking `cheque` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) ChequeTransaction(id []byte, user util.Uint160, amount *big.Int, lockAcc []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "cheque", id, user, amount, lockAcc)
+}
+
+// ChequeUnsigned creates a transaction invoking `cheque` 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) ChequeUnsigned(id []byte, user util.Uint160, amount *big.Int, lockAcc []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "cheque", nil, id, user, amount, lockAcc)
+}
+
+// InnerRingCandidateAdd creates a transaction invoking `innerRingCandidateAdd` 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) InnerRingCandidateAdd(key *keys.PublicKey) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "innerRingCandidateAdd", key)
+}
+
+// InnerRingCandidateAddTransaction creates a transaction invoking `innerRingCandidateAdd` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) InnerRingCandidateAddTransaction(key *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "innerRingCandidateAdd", key)
+}
+
+// InnerRingCandidateAddUnsigned creates a transaction invoking `innerRingCandidateAdd` 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) InnerRingCandidateAddUnsigned(key *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "innerRingCandidateAdd", nil, key)
+}
+
+// InnerRingCandidateRemove creates a transaction invoking `innerRingCandidateRemove` 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) InnerRingCandidateRemove(key *keys.PublicKey) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "innerRingCandidateRemove", key)
+}
+
+// InnerRingCandidateRemoveTransaction creates a transaction invoking `innerRingCandidateRemove` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) InnerRingCandidateRemoveTransaction(key *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "innerRingCandidateRemove", key)
+}
+
+// InnerRingCandidateRemoveUnsigned creates a transaction invoking `innerRingCandidateRemove` 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) InnerRingCandidateRemoveUnsigned(key *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "innerRingCandidateRemove", nil, key)
+}
+
+// SetConfig creates a transaction invoking `setConfig` 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) SetConfig(id []byte, key []byte, val []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setConfig", id, key, val)
+}
+
+// SetConfigTransaction creates a transaction invoking `setConfig` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetConfigTransaction(id []byte, key []byte, val []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setConfig", id, key, val)
+}
+
+// SetConfigUnsigned creates a transaction invoking `setConfig` 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) SetConfigUnsigned(id []byte, key []byte, val []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setConfig", nil, id, key, val)
+}
+
+// Unbind creates a transaction invoking `unbind` 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) Unbind(user []byte, keys []any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "unbind", user, keys)
+}
+
+// UnbindTransaction creates a transaction invoking `unbind` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UnbindTransaction(user []byte, keys []any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "unbind", user, keys)
+}
+
+// UnbindUnsigned creates a transaction invoking `unbind` 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) UnbindUnsigned(user []byte, keys []any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "unbind", nil, user, keys)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}
+
+// Withdraw creates a transaction invoking `withdraw` 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) Withdraw(user util.Uint160, amount *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "withdraw", user, amount)
+}
+
+// WithdrawTransaction creates a transaction invoking `withdraw` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) WithdrawTransaction(user util.Uint160, amount *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "withdraw", user, amount)
+}
+
+// WithdrawUnsigned creates a transaction invoking `withdraw` 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) WithdrawUnsigned(user util.Uint160, amount *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "withdraw", nil, user, amount)
+}
+
+// DepositEventsFromApplicationLog retrieves a set of all emitted events
+// with "Deposit" name from the provided [result.ApplicationLog].
+func DepositEventsFromApplicationLog(log *result.ApplicationLog) ([]*DepositEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*DepositEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Deposit" {
+				continue
+			}
+			event := new(DepositEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize DepositEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to DepositEvent or
+// returns an error if it's not possible to do to so.
+func (e *DepositEvent) 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) != 4 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.From, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field From: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	index++
+	e.Receiver, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Receiver: %w", err)
+	}
+
+	index++
+	e.TxHash, err = func(item stackitem.Item) (util.Uint256, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint256{}, err
+		}
+		u, err := util.Uint256DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint256{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field TxHash: %w", err)
+	}
+
+	return nil
+}
+
+// WithdrawEventsFromApplicationLog retrieves a set of all emitted events
+// with "Withdraw" name from the provided [result.ApplicationLog].
+func WithdrawEventsFromApplicationLog(log *result.ApplicationLog) ([]*WithdrawEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*WithdrawEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Withdraw" {
+				continue
+			}
+			event := new(WithdrawEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize WithdrawEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to WithdrawEvent or
+// returns an error if it's not possible to do to so.
+func (e *WithdrawEvent) 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) != 3 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.User, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field User: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	index++
+	e.TxHash, err = func(item stackitem.Item) (util.Uint256, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint256{}, err
+		}
+		u, err := util.Uint256DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint256{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field TxHash: %w", err)
+	}
+
+	return nil
+}
+
+// ChequeEventsFromApplicationLog retrieves a set of all emitted events
+// with "Cheque" name from the provided [result.ApplicationLog].
+func ChequeEventsFromApplicationLog(log *result.ApplicationLog) ([]*ChequeEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*ChequeEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Cheque" {
+				continue
+			}
+			event := new(ChequeEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize ChequeEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to ChequeEvent or
+// returns an error if it's not possible to do to so.
+func (e *ChequeEvent) 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) != 4 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Id, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field Id: %w", err)
+	}
+
+	index++
+	e.User, err = func(item stackitem.Item) (util.Uint160, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		u, err := util.Uint160DecodeBytesBE(b)
+		if err != nil {
+			return util.Uint160{}, err
+		}
+		return u, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field User: %w", err)
+	}
+
+	index++
+	e.Amount, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Amount: %w", err)
+	}
+
+	index++
+	e.LockAccount, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field LockAccount: %w", err)
+	}
+
+	return nil
+}
+
+// BindEventsFromApplicationLog retrieves a set of all emitted events
+// with "Bind" name from the provided [result.ApplicationLog].
+func BindEventsFromApplicationLog(log *result.ApplicationLog) ([]*BindEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*BindEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Bind" {
+				continue
+			}
+			event := new(BindEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize BindEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to BindEvent or
+// returns an error if it's not possible to do to so.
+func (e *BindEvent) 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.User, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field User: %w", err)
+	}
+
+	index++
+	e.Keys, err = func(item stackitem.Item) ([]any, error) {
+		arr, ok := item.Value().([]stackitem.Item)
+		if !ok {
+			return nil, errors.New("not an array")
+		}
+		res := make([]any, len(arr))
+		for i := range res {
+			res[i], err = arr[i].Value(), error(nil)
+			if err != nil {
+				return nil, fmt.Errorf("item %d: %w", i, err)
+			}
+		}
+		return res, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Keys: %w", err)
+	}
+
+	return nil
+}
+
+// UnbindEventsFromApplicationLog retrieves a set of all emitted events
+// with "Unbind" name from the provided [result.ApplicationLog].
+func UnbindEventsFromApplicationLog(log *result.ApplicationLog) ([]*UnbindEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*UnbindEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "Unbind" {
+				continue
+			}
+			event := new(UnbindEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize UnbindEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to UnbindEvent or
+// returns an error if it's not possible to do to so.
+func (e *UnbindEvent) 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.User, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field User: %w", err)
+	}
+
+	index++
+	e.Keys, err = func(item stackitem.Item) ([]any, error) {
+		arr, ok := item.Value().([]stackitem.Item)
+		if !ok {
+			return nil, errors.New("not an array")
+		}
+		res := make([]any, len(arr))
+		for i := range res {
+			res[i], err = arr[i].Value(), error(nil)
+			if err != nil {
+				return nil, fmt.Errorf("item %d: %w", i, err)
+			}
+		}
+		return res, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Keys: %w", err)
+	}
+
+	return nil
+}
+
+// AlphabetUpdateEventsFromApplicationLog retrieves a set of all emitted events
+// with "AlphabetUpdate" name from the provided [result.ApplicationLog].
+func AlphabetUpdateEventsFromApplicationLog(log *result.ApplicationLog) ([]*AlphabetUpdateEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*AlphabetUpdateEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "AlphabetUpdate" {
+				continue
+			}
+			event := new(AlphabetUpdateEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize AlphabetUpdateEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to AlphabetUpdateEvent or
+// returns an error if it's not possible to do to so.
+func (e *AlphabetUpdateEvent) 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.Id, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field Id: %w", err)
+	}
+
+	index++
+	e.Alphabet, err = func(item stackitem.Item) ([]any, error) {
+		arr, ok := item.Value().([]stackitem.Item)
+		if !ok {
+			return nil, errors.New("not an array")
+		}
+		res := make([]any, len(arr))
+		for i := range res {
+			res[i], err = arr[i].Value(), error(nil)
+			if err != nil {
+				return nil, fmt.Errorf("item %d: %w", i, err)
+			}
+		}
+		return res, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field Alphabet: %w", err)
+	}
+
+	return nil
+}
+
+// SetConfigEventsFromApplicationLog retrieves a set of all emitted events
+// with "SetConfig" name from the provided [result.ApplicationLog].
+func SetConfigEventsFromApplicationLog(log *result.ApplicationLog) ([]*SetConfigEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*SetConfigEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "SetConfig" {
+				continue
+			}
+			event := new(SetConfigEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize SetConfigEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to SetConfigEvent or
+// returns an error if it's not possible to do to so.
+func (e *SetConfigEvent) 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) != 3 {
+		return errors.New("wrong number of structure elements")
+	}
+
+	var (
+		index = -1
+		err   error
+	)
+	index++
+	e.Id, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field Id: %w", err)
+	}
+
+	index++
+	e.Key, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field Key: %w", err)
+	}
+
+	index++
+	e.Value, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field Value: %w", err)
+	}
+
+	return nil
+}

rpcclient/netmap/client.go

@@ -0,0 +1,629 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package netmap contains RPC wrappers for Netmap contract.
+package netmap
+
+import (
+	"crypto/elliptic"
+	"errors"
+	"fmt"
+	"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/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"math/big"
+)
+
+// AddPeerEvent represents "AddPeer" event emitted by the contract.
+type AddPeerEvent struct {
+	NodeInfo []byte
+}
+
+// AddPeerSuccessEvent represents "AddPeerSuccess" event emitted by the contract.
+type AddPeerSuccessEvent struct {
+	PublicKey *keys.PublicKey
+}
+
+// UpdateStateEvent represents "UpdateState" event emitted by the contract.
+type UpdateStateEvent struct {
+	State     *big.Int
+	PublicKey *keys.PublicKey
+}
+
+// UpdateStateSuccessEvent represents "UpdateStateSuccess" event emitted by the contract.
+type UpdateStateSuccessEvent struct {
+	PublicKey *keys.PublicKey
+	State     *big.Int
+}
+
+// NewEpochEvent represents "NewEpoch" event emitted by the contract.
+type NewEpochEvent struct {
+	Epoch *big.Int
+}
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// Config invokes `config` method of contract.
+func (c *ContractReader) Config(key []byte) (any, error) {
+	return func(item stackitem.Item, err error) (any, error) {
+		if err != nil {
+			return nil, err
+		}
+		return item.Value(), error(nil)
+	}(unwrap.Item(c.invoker.Call(c.hash, "config", key)))
+}
+
+// Epoch invokes `epoch` method of contract.
+func (c *ContractReader) Epoch() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "epoch"))
+}
+
+// ListConfig invokes `listConfig` method of contract.
+func (c *ContractReader) ListConfig() ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "listConfig"))
+}
+
+// Netmap invokes `netmap` method of contract.
+func (c *ContractReader) Netmap() ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "netmap"))
+}
+
+// NetmapCandidates invokes `netmapCandidates` method of contract.
+func (c *ContractReader) NetmapCandidates() ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "netmapCandidates"))
+}
+
+// Snapshot invokes `snapshot` method of contract.
+func (c *ContractReader) Snapshot(diff *big.Int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "snapshot", diff))
+}
+
+// SnapshotByEpoch invokes `snapshotByEpoch` method of contract.
+func (c *ContractReader) SnapshotByEpoch(epoch *big.Int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "snapshotByEpoch", epoch))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// AddPeer creates a transaction invoking `addPeer` 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) AddPeer(nodeInfo []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "addPeer", nodeInfo)
+}
+
+// AddPeerTransaction creates a transaction invoking `addPeer` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) AddPeerTransaction(nodeInfo []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "addPeer", nodeInfo)
+}
+
+// AddPeerUnsigned creates a transaction invoking `addPeer` 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) AddPeerUnsigned(nodeInfo []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "addPeer", nil, nodeInfo)
+}
+
+// AddPeerIR creates a transaction invoking `addPeerIR` 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) AddPeerIR(nodeInfo []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "addPeerIR", nodeInfo)
+}
+
+// AddPeerIRTransaction creates a transaction invoking `addPeerIR` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) AddPeerIRTransaction(nodeInfo []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "addPeerIR", nodeInfo)
+}
+
+// AddPeerIRUnsigned creates a transaction invoking `addPeerIR` 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) AddPeerIRUnsigned(nodeInfo []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "addPeerIR", nil, nodeInfo)
+}
+
+// LastEpochBlock creates a transaction invoking `lastEpochBlock` 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) LastEpochBlock() (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "lastEpochBlock")
+}
+
+// LastEpochBlockTransaction creates a transaction invoking `lastEpochBlock` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) LastEpochBlockTransaction() (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "lastEpochBlock")
+}
+
+// LastEpochBlockUnsigned creates a transaction invoking `lastEpochBlock` 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) LastEpochBlockUnsigned() (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "lastEpochBlock", nil)
+}
+
+// NewEpoch creates a transaction invoking `newEpoch` 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) NewEpoch(epochNum *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "newEpoch", epochNum)
+}
+
+// NewEpochTransaction creates a transaction invoking `newEpoch` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) NewEpochTransaction(epochNum *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "newEpoch", epochNum)
+}
+
+// NewEpochUnsigned creates a transaction invoking `newEpoch` 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) NewEpochUnsigned(epochNum *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "newEpoch", nil, epochNum)
+}
+
+// SetConfig creates a transaction invoking `setConfig` 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) SetConfig(id []byte, key []byte, val []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setConfig", id, key, val)
+}
+
+// SetConfigTransaction creates a transaction invoking `setConfig` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetConfigTransaction(id []byte, key []byte, val []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setConfig", id, key, val)
+}
+
+// SetConfigUnsigned creates a transaction invoking `setConfig` 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) SetConfigUnsigned(id []byte, key []byte, val []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setConfig", nil, id, key, val)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}
+
+// UpdateSnapshotCount creates a transaction invoking `updateSnapshotCount` 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) UpdateSnapshotCount(count *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "updateSnapshotCount", count)
+}
+
+// UpdateSnapshotCountTransaction creates a transaction invoking `updateSnapshotCount` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateSnapshotCountTransaction(count *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "updateSnapshotCount", count)
+}
+
+// UpdateSnapshotCountUnsigned creates a transaction invoking `updateSnapshotCount` 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) UpdateSnapshotCountUnsigned(count *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "updateSnapshotCount", nil, count)
+}
+
+// UpdateState creates a transaction invoking `updateState` 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) UpdateState(state *big.Int, publicKey *keys.PublicKey) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "updateState", state, publicKey)
+}
+
+// UpdateStateTransaction creates a transaction invoking `updateState` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateStateTransaction(state *big.Int, publicKey *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "updateState", state, publicKey)
+}
+
+// UpdateStateUnsigned creates a transaction invoking `updateState` 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) UpdateStateUnsigned(state *big.Int, publicKey *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "updateState", nil, state, publicKey)
+}
+
+// UpdateStateIR creates a transaction invoking `updateStateIR` 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) UpdateStateIR(state *big.Int, publicKey *keys.PublicKey) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "updateStateIR", state, publicKey)
+}
+
+// UpdateStateIRTransaction creates a transaction invoking `updateStateIR` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateStateIRTransaction(state *big.Int, publicKey *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "updateStateIR", state, publicKey)
+}
+
+// UpdateStateIRUnsigned creates a transaction invoking `updateStateIR` 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) UpdateStateIRUnsigned(state *big.Int, publicKey *keys.PublicKey) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "updateStateIR", nil, state, publicKey)
+}
+
+// AddPeerEventsFromApplicationLog retrieves a set of all emitted events
+// with "AddPeer" name from the provided [result.ApplicationLog].
+func AddPeerEventsFromApplicationLog(log *result.ApplicationLog) ([]*AddPeerEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*AddPeerEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "AddPeer" {
+				continue
+			}
+			event := new(AddPeerEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize AddPeerEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to AddPeerEvent or
+// returns an error if it's not possible to do to so.
+func (e *AddPeerEvent) 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.NodeInfo, err = arr[index].TryBytes()
+	if err != nil {
+		return fmt.Errorf("field NodeInfo: %w", err)
+	}
+
+	return nil
+}
+
+// AddPeerSuccessEventsFromApplicationLog retrieves a set of all emitted events
+// with "AddPeerSuccess" name from the provided [result.ApplicationLog].
+func AddPeerSuccessEventsFromApplicationLog(log *result.ApplicationLog) ([]*AddPeerSuccessEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*AddPeerSuccessEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "AddPeerSuccess" {
+				continue
+			}
+			event := new(AddPeerSuccessEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize AddPeerSuccessEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to AddPeerSuccessEvent or
+// returns an error if it's not possible to do to so.
+func (e *AddPeerSuccessEvent) 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.PublicKey, err = func(item stackitem.Item) (*keys.PublicKey, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		k, err := keys.NewPublicKeyFromBytes(b, elliptic.P256())
+		if err != nil {
+			return nil, err
+		}
+		return k, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field PublicKey: %w", err)
+	}
+
+	return nil
+}
+
+// UpdateStateEventsFromApplicationLog retrieves a set of all emitted events
+// with "UpdateState" name from the provided [result.ApplicationLog].
+func UpdateStateEventsFromApplicationLog(log *result.ApplicationLog) ([]*UpdateStateEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*UpdateStateEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "UpdateState" {
+				continue
+			}
+			event := new(UpdateStateEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize UpdateStateEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to UpdateStateEvent or
+// returns an error if it's not possible to do to so.
+func (e *UpdateStateEvent) 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.State, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field State: %w", err)
+	}
+
+	index++
+	e.PublicKey, err = func(item stackitem.Item) (*keys.PublicKey, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		k, err := keys.NewPublicKeyFromBytes(b, elliptic.P256())
+		if err != nil {
+			return nil, err
+		}
+		return k, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field PublicKey: %w", err)
+	}
+
+	return nil
+}
+
+// UpdateStateSuccessEventsFromApplicationLog retrieves a set of all emitted events
+// with "UpdateStateSuccess" name from the provided [result.ApplicationLog].
+func UpdateStateSuccessEventsFromApplicationLog(log *result.ApplicationLog) ([]*UpdateStateSuccessEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*UpdateStateSuccessEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "UpdateStateSuccess" {
+				continue
+			}
+			event := new(UpdateStateSuccessEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize UpdateStateSuccessEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to UpdateStateSuccessEvent or
+// returns an error if it's not possible to do to so.
+func (e *UpdateStateSuccessEvent) 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.PublicKey, err = func(item stackitem.Item) (*keys.PublicKey, error) {
+		b, err := item.TryBytes()
+		if err != nil {
+			return nil, err
+		}
+		k, err := keys.NewPublicKeyFromBytes(b, elliptic.P256())
+		if err != nil {
+			return nil, err
+		}
+		return k, nil
+	}(arr[index])
+	if err != nil {
+		return fmt.Errorf("field PublicKey: %w", err)
+	}
+
+	index++
+	e.State, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field State: %w", err)
+	}
+
+	return nil
+}
+
+// NewEpochEventsFromApplicationLog retrieves a set of all emitted events
+// with "NewEpoch" name from the provided [result.ApplicationLog].
+func NewEpochEventsFromApplicationLog(log *result.ApplicationLog) ([]*NewEpochEvent, error) {
+	if log == nil {
+		return nil, errors.New("nil application log")
+	}
+
+	var res []*NewEpochEvent
+	for i, ex := range log.Executions {
+		for j, e := range ex.Events {
+			if e.Name != "NewEpoch" {
+				continue
+			}
+			event := new(NewEpochEvent)
+			err := event.FromStackItem(e.Item)
+			if err != nil {
+				return nil, fmt.Errorf("failed to deserialize NewEpochEvent from stackitem (execution #%d, event #%d): %w", i, j, err)
+			}
+			res = append(res, event)
+		}
+	}
+
+	return res, nil
+}
+
+// FromStackItem converts provided [stackitem.Array] to NewEpochEvent or
+// returns an error if it's not possible to do to so.
+func (e *NewEpochEvent) 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.Epoch, err = arr[index].TryInteger()
+	if err != nil {
+		return fmt.Errorf("field Epoch: %w", err)
+	}
+
+	return nil
+}

rpcclient/nns/client.go

@@ -0,0 +1,742 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package nameservice contains RPC wrappers for NameService contract.
+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"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/nep11"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
+	"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
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	nep11.Actor
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	nep11.NonDivisibleReader
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	nep11.BaseWriter
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{*nep11.NewNonDivisibleReader(invoker, hash), invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	var nep11ndt = nep11.NewNonDivisible(actor, hash)
+	return &Contract{ContractReader{nep11ndt.NonDivisibleReader, actor, hash}, nep11ndt.BaseWriter, actor, hash}
+}
+
+// GetAllRecords invokes `getAllRecords` method of contract.
+func (c *ContractReader) GetAllRecords(name string) (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "getAllRecords", name))
+}
+
+// GetAllRecordsExpanded is similar to GetAllRecords (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) GetAllRecordsExpanded(name string, _numOfIteratorItems int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "getAllRecords", _numOfIteratorItems, name))
+}
+
+// GetPrice invokes `getPrice` method of contract.
+func (c *ContractReader) GetPrice() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "getPrice"))
+}
+
+// GetRecords invokes `getRecords` method of contract.
+func (c *ContractReader) GetRecords(name string, typ *big.Int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "getRecords", name, typ))
+}
+
+// IsAvailable invokes `isAvailable` method of contract.
+func (c *ContractReader) IsAvailable(name string) (bool, error) {
+	return unwrap.Bool(c.invoker.Call(c.hash, "isAvailable", name))
+}
+
+// Resolve invokes `resolve` method of contract.
+func (c *ContractReader) Resolve(name string, typ *big.Int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "resolve", name, typ))
+}
+
+// Roots invokes `roots` method of contract.
+func (c *ContractReader) Roots() (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "roots"))
+}
+
+// RootsExpanded is similar to Roots (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) RootsExpanded(_numOfIteratorItems int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "roots", _numOfIteratorItems))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// AddRecord creates a transaction invoking `addRecord` 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) AddRecord(name string, typ *big.Int, data string) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "addRecord", name, typ, data)
+}
+
+// AddRecordTransaction creates a transaction invoking `addRecord` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) AddRecordTransaction(name string, typ *big.Int, data string) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "addRecord", name, typ, data)
+}
+
+// AddRecordUnsigned creates a transaction invoking `addRecord` 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) AddRecordUnsigned(name string, typ *big.Int, data string) (*transaction.Transaction, error) {
+	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.
+func (c *Contract) DeleteRecords(name string, typ *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "deleteRecords", name, typ)
+}
+
+// DeleteRecordsTransaction creates a transaction invoking `deleteRecords` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) DeleteRecordsTransaction(name string, typ *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "deleteRecords", name, typ)
+}
+
+// DeleteRecordsUnsigned creates a transaction invoking `deleteRecords` 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) DeleteRecordsUnsigned(name string, typ *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "deleteRecords", nil, name, typ)
+}
+
+func (c *Contract) scriptForRegister(name string, owner util.Uint160, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) ([]byte, error) {
+	return smartcontract.CreateCallWithAssertScript(c.hash, "register", name, owner, email, refresh, retry, expire, ttl)
+}
+
+// Register creates a transaction invoking `register` 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) Register(name string, owner util.Uint160, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) (util.Uint256, uint32, error) {
+	script, err := c.scriptForRegister(name, owner, email, refresh, retry, expire, ttl)
+	if err != nil {
+		return util.Uint256{}, 0, err
+	}
+	return c.actor.SendRun(script)
+}
+
+// RegisterTransaction creates a transaction invoking `register` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) RegisterTransaction(name string, owner util.Uint160, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) (*transaction.Transaction, error) {
+	script, err := c.scriptForRegister(name, owner, email, refresh, retry, expire, ttl)
+	if err != nil {
+		return nil, err
+	}
+	return c.actor.MakeRun(script)
+}
+
+// RegisterUnsigned creates a transaction invoking `register` 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) RegisterUnsigned(name string, owner util.Uint160, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) (*transaction.Transaction, error) {
+	script, err := c.scriptForRegister(name, owner, email, refresh, retry, expire, ttl)
+	if err != nil {
+		return nil, err
+	}
+	return c.actor.MakeUnsignedRun(script, nil)
+}
+
+// Renew creates a transaction invoking `renew` 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) Renew(name string) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "renew", name)
+}
+
+// RenewTransaction creates a transaction invoking `renew` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) RenewTransaction(name string) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "renew", name)
+}
+
+// RenewUnsigned creates a transaction invoking `renew` 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) RenewUnsigned(name string) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "renew", nil, name)
+}
+
+// SetAdmin creates a transaction invoking `setAdmin` 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) SetAdmin(name string, admin util.Uint160) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setAdmin", name, admin)
+}
+
+// SetAdminTransaction creates a transaction invoking `setAdmin` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetAdminTransaction(name string, admin util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setAdmin", name, admin)
+}
+
+// SetAdminUnsigned creates a transaction invoking `setAdmin` 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) SetAdminUnsigned(name string, admin util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setAdmin", nil, name, admin)
+}
+
+// SetPrice creates a transaction invoking `setPrice` 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) SetPrice(price *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setPrice", price)
+}
+
+// SetPriceTransaction creates a transaction invoking `setPrice` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetPriceTransaction(price *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setPrice", price)
+}
+
+// SetPriceUnsigned creates a transaction invoking `setPrice` 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) SetPriceUnsigned(price *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setPrice", nil, price)
+}
+
+// SetRecord creates a transaction invoking `setRecord` 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) SetRecord(name string, typ *big.Int, id *big.Int, data string) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setRecord", name, typ, id, data)
+}
+
+// SetRecordTransaction creates a transaction invoking `setRecord` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetRecordTransaction(name string, typ *big.Int, id *big.Int, data string) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setRecord", name, typ, id, data)
+}
+
+// SetRecordUnsigned creates a transaction invoking `setRecord` 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) SetRecordUnsigned(name string, typ *big.Int, id *big.Int, data string) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setRecord", nil, name, typ, id, data)
+}
+
+// Update creates a transaction invoking `update` 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) Update(nef []byte, manifest string, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", nef, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(nef []byte, manifest string, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", nef, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(nef []byte, manifest string, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, nef, manifest, data)
+}
+
+// UpdateSOA creates a transaction invoking `updateSOA` 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) UpdateSOA(name string, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "updateSOA", name, email, refresh, retry, expire, ttl)
+}
+
+// UpdateSOATransaction creates a transaction invoking `updateSOA` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateSOATransaction(name string, email string, refresh *big.Int, retry *big.Int, expire *big.Int, ttl *big.Int) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "updateSOA", name, email, refresh, retry, expire, ttl)
+}
+
+// UpdateSOAUnsigned creates a transaction invoking `updateSOA` 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) 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

@@ -0,0 +1,234 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package ape contains RPC wrappers for APE contract.
+package ape
+
+import (
+	"github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"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"
+	"math/big"
+)
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+	CallAndExpandIterator(contract util.Uint160, method string, maxItems int, params ...any) (*result.Invoke, error)
+	TerminateSession(sessionID uuid.UUID) error
+	TraverseIterator(sessionID uuid.UUID, iterator *result.Iterator, num int) ([]stackitem.Item, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// GetAdmin invokes `getAdmin` method of contract.
+func (c *ContractReader) GetAdmin() (util.Uint160, error) {
+	return unwrap.Uint160(c.invoker.Call(c.hash, "getAdmin"))
+}
+
+// GetChain invokes `getChain` method of contract.
+func (c *ContractReader) GetChain(entity *big.Int, entityName string, name []byte) ([]byte, error) {
+	return unwrap.Bytes(c.invoker.Call(c.hash, "getChain", entity, entityName, name))
+}
+
+// IteratorChainsByPrefix invokes `iteratorChainsByPrefix` method of contract.
+func (c *ContractReader) IteratorChainsByPrefix(entity *big.Int, entityName string, prefix []byte) (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "iteratorChainsByPrefix", entity, entityName, prefix))
+}
+
+// IteratorChainsByPrefixExpanded is similar to IteratorChainsByPrefix (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) IteratorChainsByPrefixExpanded(entity *big.Int, entityName string, prefix []byte, _numOfIteratorItems int) ([]stackitem.Item, error) {
+	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))
+}
+
+// ListChainsByPrefix invokes `listChainsByPrefix` method of contract.
+func (c *ContractReader) ListChainsByPrefix(entity *big.Int, entityName string, prefix []byte) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.Call(c.hash, "listChainsByPrefix", entity, entityName, prefix))
+}
+
+// ListTargets invokes `listTargets` method of contract.
+func (c *ContractReader) ListTargets(entity *big.Int) (uuid.UUID, result.Iterator, error) {
+	return unwrap.SessionIterator(c.invoker.Call(c.hash, "listTargets", entity))
+}
+
+// ListTargetsExpanded is similar to ListTargets (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) ListTargetsExpanded(entity *big.Int, _numOfIteratorItems int) ([]stackitem.Item, error) {
+	return unwrap.Array(c.invoker.CallAndExpandIterator(c.hash, "listTargets", _numOfIteratorItems, entity))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// AddChain creates a transaction invoking `addChain` 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) AddChain(entity *big.Int, entityName string, name []byte, chain []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "addChain", entity, entityName, name, chain)
+}
+
+// AddChainTransaction creates a transaction invoking `addChain` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) AddChainTransaction(entity *big.Int, entityName string, name []byte, chain []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "addChain", entity, entityName, name, chain)
+}
+
+// AddChainUnsigned creates a transaction invoking `addChain` 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) AddChainUnsigned(entity *big.Int, entityName string, name []byte, chain []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "addChain", nil, entity, entityName, name, chain)
+}
+
+// RemoveChain creates a transaction invoking `removeChain` 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) RemoveChain(entity *big.Int, entityName string, name []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "removeChain", entity, entityName, name)
+}
+
+// RemoveChainTransaction creates a transaction invoking `removeChain` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) RemoveChainTransaction(entity *big.Int, entityName string, name []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "removeChain", entity, entityName, name)
+}
+
+// RemoveChainUnsigned creates a transaction invoking `removeChain` 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) RemoveChainUnsigned(entity *big.Int, entityName string, name []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "removeChain", nil, entity, entityName, name)
+}
+
+// RemoveChainsByPrefix creates a transaction invoking `removeChainsByPrefix` 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) RemoveChainsByPrefix(entity *big.Int, entityName string, name []byte) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "removeChainsByPrefix", entity, entityName, name)
+}
+
+// RemoveChainsByPrefixTransaction creates a transaction invoking `removeChainsByPrefix` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) RemoveChainsByPrefixTransaction(entity *big.Int, entityName string, name []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "removeChainsByPrefix", entity, entityName, name)
+}
+
+// RemoveChainsByPrefixUnsigned creates a transaction invoking `removeChainsByPrefix` 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) RemoveChainsByPrefixUnsigned(entity *big.Int, entityName string, name []byte) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "removeChainsByPrefix", nil, entity, entityName, name)
+}
+
+// SetAdmin creates a transaction invoking `setAdmin` 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) SetAdmin(addr util.Uint160) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "setAdmin", addr)
+}
+
+// SetAdminTransaction creates a transaction invoking `setAdmin` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) SetAdminTransaction(addr util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "setAdmin", addr)
+}
+
+// SetAdminUnsigned creates a transaction invoking `setAdmin` 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) SetAdminUnsigned(addr util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "setAdmin", nil, addr)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}

rpcclient/processing/client.go

@@ -0,0 +1,84 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package multisignatureprocessing contains RPC wrappers for Multi Signature Processing contract.
+package multisignatureprocessing
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"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"
+	"math/big"
+)
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// Verify invokes `verify` method of contract.
+func (c *ContractReader) Verify() (bool, error) {
+	return unwrap.Bool(c.invoker.Call(c.hash, "verify"))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}

rpcclient/proxy/client.go

@@ -0,0 +1,128 @@
+// Code generated by neo-go contract generate-rpcwrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
+
+// Package notaryproxy contains RPC wrappers for Notary Proxy contract.
+package notaryproxy
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"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"
+	"math/big"
+)
+
+// Invoker is used by ContractReader to call various safe methods.
+type Invoker interface {
+	Call(contract util.Uint160, operation string, params ...any) (*result.Invoke, error)
+}
+
+// Actor is used by Contract to call state-changing methods.
+type Actor interface {
+	Invoker
+
+	MakeCall(contract util.Uint160, method string, params ...any) (*transaction.Transaction, error)
+	MakeRun(script []byte) (*transaction.Transaction, error)
+	MakeUnsignedCall(contract util.Uint160, method string, attrs []transaction.Attribute, params ...any) (*transaction.Transaction, error)
+	MakeUnsignedRun(script []byte, attrs []transaction.Attribute) (*transaction.Transaction, error)
+	SendCall(contract util.Uint160, method string, params ...any) (util.Uint256, uint32, error)
+	SendRun(script []byte) (util.Uint256, uint32, error)
+}
+
+// ContractReader implements safe contract methods.
+type ContractReader struct {
+	invoker Invoker
+	hash    util.Uint160
+}
+
+// Contract implements all contract methods.
+type Contract struct {
+	ContractReader
+	actor Actor
+	hash  util.Uint160
+}
+
+// NewReader creates an instance of ContractReader using provided contract hash and the given Invoker.
+func NewReader(invoker Invoker, hash util.Uint160) *ContractReader {
+	return &ContractReader{invoker, hash}
+}
+
+// New creates an instance of Contract using provided contract hash and the given Actor.
+func New(actor Actor, hash util.Uint160) *Contract {
+	return &Contract{ContractReader{actor, hash}, actor, hash}
+}
+
+// Verify invokes `verify` method of contract.
+func (c *ContractReader) Verify() (bool, error) {
+	return unwrap.Bool(c.invoker.Call(c.hash, "verify"))
+}
+
+// Version invokes `version` method of contract.
+func (c *ContractReader) Version() (*big.Int, error) {
+	return unwrap.BigInt(c.invoker.Call(c.hash, "version"))
+}
+
+// AddAccount creates a transaction invoking `addAccount` 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) AddAccount(addr util.Uint160) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "addAccount", addr)
+}
+
+// AddAccountTransaction creates a transaction invoking `addAccount` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) AddAccountTransaction(addr util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "addAccount", addr)
+}
+
+// AddAccountUnsigned creates a transaction invoking `addAccount` 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) AddAccountUnsigned(addr util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "addAccount", nil, addr)
+}
+
+// RemoveAccount creates a transaction invoking `removeAccount` 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) RemoveAccount(addr util.Uint160) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "removeAccount", addr)
+}
+
+// RemoveAccountTransaction creates a transaction invoking `removeAccount` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) RemoveAccountTransaction(addr util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "removeAccount", addr)
+}
+
+// RemoveAccountUnsigned creates a transaction invoking `removeAccount` 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) RemoveAccountUnsigned(addr util.Uint160) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "removeAccount", nil, addr)
+}
+
+// Update creates a transaction invoking `update` 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) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` 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) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}

subnet/config.yml

@@ -1,23 +0,0 @@
-name: "NeoFS Subnet"
-safemethods: ["version"]
-permissions:
-  - methods: ["update"]
-events:
-  - name: Put
-    parameters:
-      - name: id
-        type: ByteArray
-      - name: ownerKey
-        type: PublicKey
-      - name: info
-        type: ByteArray
-  - name: Delete
-    parameters:
-        - name: id
-          type: ByteArray
-  - name: RemoveNode
-    parameters:
-        - name: subnetID
-          type: ByteArray
-        - name: node
-          type: PublicKey