package stateroot_test import ( "crypto/elliptic" "path/filepath" "sort" "testing" "time" "github.com/nspcc-dev/neo-go/internal/basicchain" "github.com/nspcc-dev/neo-go/internal/testserdes" "github.com/nspcc-dev/neo-go/pkg/config" "github.com/nspcc-dev/neo-go/pkg/config/netmode" "github.com/nspcc-dev/neo-go/pkg/core" "github.com/nspcc-dev/neo-go/pkg/core/native/nativenames" "github.com/nspcc-dev/neo-go/pkg/core/native/noderoles" "github.com/nspcc-dev/neo-go/pkg/core/state" corestate "github.com/nspcc-dev/neo-go/pkg/core/stateroot" "github.com/nspcc-dev/neo-go/pkg/core/storage" "github.com/nspcc-dev/neo-go/pkg/core/transaction" "github.com/nspcc-dev/neo-go/pkg/crypto/hash" "github.com/nspcc-dev/neo-go/pkg/crypto/keys" "github.com/nspcc-dev/neo-go/pkg/interop/native/roles" "github.com/nspcc-dev/neo-go/pkg/io" "github.com/nspcc-dev/neo-go/pkg/neotest" "github.com/nspcc-dev/neo-go/pkg/neotest/chain" "github.com/nspcc-dev/neo-go/pkg/network/payload" "github.com/nspcc-dev/neo-go/pkg/services/stateroot" "github.com/nspcc-dev/neo-go/pkg/smartcontract" "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/wallet" "github.com/stretchr/testify/require" "go.uber.org/atomic" "go.uber.org/zap/zaptest" ) func testSignStateRoot(t *testing.T, r *state.MPTRoot, pubs keys.PublicKeys, accs ...*wallet.Account) []byte { n := smartcontract.GetMajorityHonestNodeCount(len(accs)) w := io.NewBufBinWriter() for i := 0; i < n; i++ { sig := accs[i].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r) emit.Bytes(w.BinWriter, sig) } require.NoError(t, w.Err) script, err := smartcontract.CreateMajorityMultiSigRedeemScript(pubs.Copy()) require.NoError(t, err) r.Witness = []transaction.Witness{{ VerificationScript: script, InvocationScript: w.Bytes(), }} data, err := testserdes.EncodeBinary(stateroot.NewMessage(stateroot.RootT, r)) require.NoError(t, err) return data } func newMajorityMultisigWithGAS(t *testing.T, n int) (util.Uint160, keys.PublicKeys, []*wallet.Account) { accs := make([]*wallet.Account, n) for i := range accs { acc, err := wallet.NewAccount() require.NoError(t, err) accs[i] = acc } sort.Slice(accs, func(i, j int) bool { pi := accs[i].PublicKey() pj := accs[j].PublicKey() return pi.Cmp(pj) == -1 }) pubs := make(keys.PublicKeys, n) for i := range pubs { pubs[i] = accs[i].PublicKey() } script, err := smartcontract.CreateMajorityMultiSigRedeemScript(pubs) require.NoError(t, err) return hash.Hash160(script), pubs, accs } func TestStateRoot(t *testing.T) { bc, validator, committee := chain.NewMulti(t) e := neotest.NewExecutor(t, bc, validator, committee) designationSuperInvoker := e.NewInvoker(e.NativeHash(t, nativenames.Designation), validator, committee) gasValidatorInvoker := e.ValidatorInvoker(e.NativeHash(t, nativenames.Gas)) h, pubs, accs := newMajorityMultisigWithGAS(t, 2) validatorNodes := []any{pubs[0].Bytes(), pubs[1].Bytes()} designationSuperInvoker.Invoke(t, stackitem.Null{}, "designateAsRole", int64(roles.StateValidator), validatorNodes) updateIndex := bc.BlockHeight() gasValidatorInvoker.Invoke(t, true, "transfer", validator.ScriptHash(), h, 1_0000_0000, nil) tmpDir := t.TempDir() w := createAndWriteWallet(t, accs[0], filepath.Join(tmpDir, "w"), "pass") cfg := createStateRootConfig(w.Path(), "pass") srMod := bc.GetStateModule().(*corestate.Module) // Take full responsibility here. srv, err := stateroot.New(cfg, srMod, zaptest.NewLogger(t), bc, nil) require.NoError(t, err) require.EqualValues(t, 0, bc.GetStateModule().CurrentValidatedHeight()) r, err := bc.GetStateModule().GetStateRoot(bc.BlockHeight()) require.NoError(t, err) require.Equal(t, r.Root, bc.GetStateModule().CurrentLocalStateRoot()) t.Run("invalid message", func(t *testing.T) { require.Error(t, srv.OnPayload(&payload.Extensible{Data: []byte{42}})) require.EqualValues(t, 0, bc.GetStateModule().CurrentValidatedHeight()) }) t.Run("drop zero index", func(t *testing.T) { r, err := bc.GetStateModule().GetStateRoot(0) require.NoError(t, err) data, err := testserdes.EncodeBinary(stateroot.NewMessage(stateroot.RootT, r)) require.NoError(t, err) require.NoError(t, srv.OnPayload(&payload.Extensible{Data: data})) require.EqualValues(t, 0, bc.GetStateModule().CurrentValidatedHeight()) }) t.Run("invalid height", func(t *testing.T) { r, err := bc.GetStateModule().GetStateRoot(1) require.NoError(t, err) r.Index = 10 data := testSignStateRoot(t, r, pubs, accs...) require.Error(t, srv.OnPayload(&payload.Extensible{Data: data})) require.EqualValues(t, 0, bc.GetStateModule().CurrentValidatedHeight()) }) t.Run("invalid signer", func(t *testing.T) { accInv, err := wallet.NewAccount() require.NoError(t, err) pubs := keys.PublicKeys{accInv.PublicKey()} require.NoError(t, accInv.ConvertMultisig(1, pubs)) gasValidatorInvoker.Invoke(t, true, "transfer", validator.ScriptHash(), accInv.Contract.ScriptHash(), 1_0000_0000, nil) r, err := bc.GetStateModule().GetStateRoot(1) require.NoError(t, err) data := testSignStateRoot(t, r, pubs, accInv) err = srv.OnPayload(&payload.Extensible{Data: data}) require.ErrorIs(t, err, core.ErrWitnessHashMismatch) require.EqualValues(t, 0, bc.GetStateModule().CurrentValidatedHeight()) }) r, err = bc.GetStateModule().GetStateRoot(updateIndex + 1) require.NoError(t, err) data := testSignStateRoot(t, r, pubs, accs...) require.NoError(t, srv.OnPayload(&payload.Extensible{Data: data})) require.EqualValues(t, 2, bc.GetStateModule().CurrentValidatedHeight()) r, err = bc.GetStateModule().GetStateRoot(updateIndex + 1) require.NoError(t, err) require.NotEqual(t, 0, len(r.Witness)) require.Equal(t, h, r.Witness[0].ScriptHash()) } type memoryStore struct { *storage.MemoryStore } func (memoryStore) Close() error { return nil } func TestStateRootInitNonZeroHeight(t *testing.T) { st := memoryStore{storage.NewMemoryStore()} h, pubs, accs := newMajorityMultisigWithGAS(t, 2) var root util.Uint256 t.Run("init", func(t *testing.T) { // this is in a separate test to do proper cleanup bc, validator, committee := chain.NewMultiWithCustomConfigAndStore(t, nil, st, true) e := neotest.NewExecutor(t, bc, validator, committee) designationSuperInvoker := e.NewInvoker(e.NativeHash(t, nativenames.Designation), validator, committee) gasValidatorInvoker := e.ValidatorInvoker(e.NativeHash(t, nativenames.Gas)) validatorNodes := []any{pubs[0].Bytes(), pubs[1].Bytes()} designationSuperInvoker.Invoke(t, stackitem.Null{}, "designateAsRole", int64(roles.StateValidator), validatorNodes) gasValidatorInvoker.Invoke(t, true, "transfer", validator.ScriptHash(), h, 1_0000_0000, nil) tmpDir := t.TempDir() w := createAndWriteWallet(t, accs[0], filepath.Join(tmpDir, "w"), "pass") cfg := createStateRootConfig(w.Path(), "pass") srMod := bc.GetStateModule().(*corestate.Module) // Take full responsibility here. srv, err := stateroot.New(cfg, srMod, zaptest.NewLogger(t), bc, nil) require.NoError(t, err) r, err := bc.GetStateModule().GetStateRoot(2) require.NoError(t, err) data := testSignStateRoot(t, r, pubs, accs...) require.NoError(t, srv.OnPayload(&payload.Extensible{Data: data})) require.EqualValues(t, 2, bc.GetStateModule().CurrentValidatedHeight()) root = bc.GetStateModule().CurrentLocalStateRoot() }) bc2, _, _ := chain.NewMultiWithCustomConfigAndStore(t, nil, st, true) srv := bc2.GetStateModule() require.EqualValues(t, 2, srv.CurrentValidatedHeight()) require.Equal(t, root, srv.CurrentLocalStateRoot()) } func createAndWriteWallet(t *testing.T, acc *wallet.Account, path, password string) *wallet.Wallet { w, err := wallet.NewWallet(path) require.NoError(t, err) require.NoError(t, acc.Encrypt(password, w.Scrypt)) w.AddAccount(acc) require.NoError(t, w.Save()) return w } func createStateRootConfig(walletPath, password string) config.StateRoot { return config.StateRoot{ Enabled: true, UnlockWallet: config.Wallet{ Path: walletPath, Password: password, }, } } func TestStateRootFull(t *testing.T) { tmpDir := t.TempDir() bc, validator, committee := chain.NewMulti(t) e := neotest.NewExecutor(t, bc, validator, committee) designationSuperInvoker := e.NewInvoker(e.NativeHash(t, nativenames.Designation), validator, committee) gasValidatorInvoker := e.ValidatorInvoker(e.NativeHash(t, nativenames.Gas)) getDesignatedByRole := func(t *testing.T, h uint32) keys.PublicKeys { res, err := designationSuperInvoker.TestInvoke(t, "getDesignatedByRole", int64(noderoles.StateValidator), h) require.NoError(t, err) nodes := res.Pop().Value().([]stackitem.Item) pubs := make(keys.PublicKeys, len(nodes)) for i, node := range nodes { pubs[i], err = keys.NewPublicKeyFromBytes(node.Value().([]byte), elliptic.P256()) require.NoError(t, err) } return pubs } h, pubs, accs := newMajorityMultisigWithGAS(t, 2) w := createAndWriteWallet(t, accs[1], filepath.Join(tmpDir, "wallet2"), "two") cfg := createStateRootConfig(w.Path(), "two") var lastValidated atomic.Value var lastHeight atomic.Uint32 srMod := bc.GetStateModule().(*corestate.Module) // Take full responsibility here. srv, err := stateroot.New(cfg, srMod, zaptest.NewLogger(t), bc, func(ep *payload.Extensible) { lastHeight.Store(ep.ValidBlockStart) lastValidated.Store(ep) }) require.NoError(t, err) srv.Start() t.Cleanup(srv.Shutdown) validatorNodes := []any{pubs[0].Bytes(), pubs[1].Bytes()} designationSuperInvoker.Invoke(t, stackitem.Null{}, "designateAsRole", int64(roles.StateValidator), validatorNodes) gasValidatorInvoker.Invoke(t, true, "transfer", validator.ScriptHash(), h, 1_0000_0000, nil) require.Eventually(t, func() bool { return lastHeight.Load() == 2 }, time.Second, time.Millisecond) checkVoteBroadcasted(t, bc, lastValidated.Load().(*payload.Extensible), 2, 1, getDesignatedByRole) e.AddNewBlock(t) require.Eventually(t, func() bool { return lastHeight.Load() == 3 }, time.Second, time.Millisecond) checkVoteBroadcasted(t, bc, lastValidated.Load().(*payload.Extensible), 3, 1, getDesignatedByRole) r, err := bc.GetStateModule().GetStateRoot(2) require.NoError(t, err) require.NoError(t, srv.AddSignature(2, 0, accs[0].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r))) require.NotNil(t, lastValidated.Load().(*payload.Extensible)) msg := new(stateroot.Message) require.NoError(t, testserdes.DecodeBinary(lastValidated.Load().(*payload.Extensible).Data, msg)) require.NotEqual(t, stateroot.RootT, msg.Type) // not a sender for this root r, err = bc.GetStateModule().GetStateRoot(3) require.NoError(t, err) require.Error(t, srv.AddSignature(2, 0, accs[0].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r))) require.NoError(t, srv.AddSignature(3, 0, accs[0].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r))) require.NotNil(t, lastValidated.Load().(*payload.Extensible)) require.NoError(t, testserdes.DecodeBinary(lastValidated.Load().(*payload.Extensible).Data, msg)) require.Equal(t, stateroot.RootT, msg.Type) actual := msg.Payload.(*state.MPTRoot) require.Equal(t, r.Index, actual.Index) require.Equal(t, r.Version, actual.Version) require.Equal(t, r.Root, actual.Root) } func checkVoteBroadcasted(t *testing.T, bc *core.Blockchain, p *payload.Extensible, height uint32, valIndex byte, getDesignatedByRole func(t *testing.T, h uint32) keys.PublicKeys) { require.NotNil(t, p) m := new(stateroot.Message) require.NoError(t, testserdes.DecodeBinary(p.Data, m)) require.Equal(t, stateroot.VoteT, m.Type) vote := m.Payload.(*stateroot.Vote) srv := bc.GetStateModule() r, err := srv.GetStateRoot(bc.BlockHeight()) require.NoError(t, err) require.Equal(t, height, vote.Height) require.Equal(t, int32(valIndex), vote.ValidatorIndex) pubs := getDesignatedByRole(t, bc.BlockHeight()) require.True(t, len(pubs) > int(valIndex)) require.True(t, pubs[valIndex].VerifyHashable(vote.Signature, uint32(netmode.UnitTestNet), r)) } func TestStateroot_GetLatestStateHeight(t *testing.T) { bc, validators, committee := chain.NewMultiWithCustomConfig(t, func(c *config.Blockchain) { c.P2PSigExtensions = true }) e := neotest.NewExecutor(t, bc, validators, committee) basicchain.Init(t, "../../../", e) m := bc.GetStateModule() for i := uint32(0); i < bc.BlockHeight(); i++ { r, err := m.GetStateRoot(i) require.NoError(t, err) h, err := bc.GetStateModule().GetLatestStateHeight(r.Root) require.NoError(t, err, i) require.Equal(t, i, h) } }