frostfs-node/pkg/morph/event/notary_preparator_test.go

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package event
import (
"fmt"
"testing"
"github.com/nspcc-dev/neo-go/pkg/vm"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
"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/io"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"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/opcode"
"github.com/stretchr/testify/require"
)
var (
alphaKeys keys.PublicKeys
wrongAlphaKeys keys.PublicKeys
dummyAlphabetInvocationScript = []byte{} // expected to be empty if generated by Notary Actor, as requester can't fill it in
dummyAlphabetInvocationScriptOld = append([]byte{byte(opcode.PUSHDATA1), 64}, make([]byte, 64)...) // expected to be dummy if generated manually
wrongDummyInvocationScript = append([]byte{byte(opcode.PUSHDATA1), 64, 1}, make([]byte, 63)...)
scriptHash util.Uint160
)
func init() {
privat, _ := keys.NewPrivateKey()
pub := privat.PublicKey()
alphaKeys = keys.PublicKeys{pub}
wrongPrivat, _ := keys.NewPrivateKey()
wrongPub := wrongPrivat.PublicKey()
wrongAlphaKeys = keys.PublicKeys{wrongPub}
scriptHash, _ = util.Uint160DecodeStringLE("21fce15191428e9c2f0e8d0329ff6d3dd14882de")
}
type blockCounter struct {
epoch uint32
err error
}
func (b blockCounter) BlockCount() (res uint32, err error) {
return b.epoch, b.err
}
func TestPrepare_IncorrectScript(t *testing.T) {
preparator := notaryPreparator(
PreparatorPrm{
alphaKeysSource(),
blockCounter{100, nil},
},
)
for _, dummyMultisig := range []bool{true, false} { // try both empty and dummy multisig/Notary invocation witness script
t.Run(fmt.Sprintf("not contract call, compat: %t", dummyMultisig), func(t *testing.T) {
bw := io.NewBufBinWriter()
emit.Int(bw.BinWriter, 4)
emit.String(bw.BinWriter, "test")
emit.Bytes(bw.BinWriter, scriptHash.BytesBE())
emit.Syscall(bw.BinWriter, interopnames.SystemContractCallNative) // any != interopnames.SystemContractCall
nr := correctNR(bw.Bytes(), dummyMultisig, false)
_, err := preparator.Prepare(nr)
require.EqualError(t, err, errNotContractCall.Error())
})
t.Run(fmt.Sprintf("incorrect, compat: %t", dummyMultisig), func(t *testing.T) {
bw := io.NewBufBinWriter()
emit.Int(bw.BinWriter, -1)
emit.String(bw.BinWriter, "test")
emit.Bytes(bw.BinWriter, scriptHash.BytesBE())
emit.Syscall(bw.BinWriter, interopnames.SystemContractCall)
nr := correctNR(bw.Bytes(), dummyMultisig, false)
_, err := preparator.Prepare(nr)
require.EqualError(t, err, errIncorrectCallFlag.Error())
})
}
}
func TestPrepare_IncorrectNR(t *testing.T) {
type (
mTX struct {
sigs []transaction.Signer
scripts []transaction.Witness
attrs []transaction.Attribute
}
fbTX struct {
attrs []transaction.Attribute
}
)
setIncorrectFields := func(nr payload.P2PNotaryRequest, m mTX, f fbTX) payload.P2PNotaryRequest {
if m.sigs != nil {
nr.MainTransaction.Signers = m.sigs
}
if m.scripts != nil {
nr.MainTransaction.Scripts = m.scripts
}
if m.attrs != nil {
nr.MainTransaction.Attributes = m.attrs
}
if f.attrs != nil {
nr.FallbackTransaction.Attributes = f.attrs
}
return nr
}
alphaVerificationScript, _ := smartcontract.CreateMultiSigRedeemScript(len(alphaKeys)*2/3+1, alphaKeys)
wrongAlphaVerificationScript, _ := smartcontract.CreateMultiSigRedeemScript(len(wrongAlphaKeys)*2/3+1, wrongAlphaKeys)
tests := []struct {
name string
addW bool // additional witness for non alphabet invocations
mTX mTX
fbTX fbTX
expErr error
}{
{
name: "incorrect witness amount",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{{}},
},
expErr: errUnexpectedWitnessAmount,
},
{
name: "not dummy invocation script",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
InvocationScript: wrongDummyInvocationScript,
},
{},
},
},
expErr: ErrTXAlreadyHandled,
},
{
name: "incorrect main TX signers amount",
addW: false,
mTX: mTX{
sigs: []transaction.Signer{{}},
},
expErr: errUnexpectedCosignersAmount,
},
{
name: "incorrect main TX Alphabet signer",
addW: false,
mTX: mTX{
sigs: []transaction.Signer{
{},
{
Account: hash.Hash160(wrongAlphaVerificationScript),
},
{},
},
},
expErr: errIncorrectAlphabetSigner,
},
{
name: "incorrect main TX attribute amount",
addW: false,
mTX: mTX{
attrs: []transaction.Attribute{{}, {}},
},
expErr: errIncorrectAttributesAmount,
},
{
name: "incorrect main TX attribute",
addW: false,
mTX: mTX{
attrs: []transaction.Attribute{
{
Value: &transaction.NotaryAssisted{
NKeys: uint8(len(alphaKeys) + 1),
},
},
},
},
expErr: errIncorrectAttribute,
},
{
name: "incorrect main TX proxy witness",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{
InvocationScript: make([]byte, 1),
},
{
InvocationScript: dummyAlphabetInvocationScript,
},
{},
},
},
expErr: errIncorrectProxyWitnesses,
},
{
name: "incorrect main TX proxy witness compat",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{
InvocationScript: make([]byte, 1),
},
{
InvocationScript: dummyAlphabetInvocationScriptOld,
},
{},
},
},
expErr: errIncorrectProxyWitnesses,
},
{
name: "incorrect main TX Alphabet witness",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
VerificationScript: wrongAlphaVerificationScript,
InvocationScript: dummyAlphabetInvocationScript,
},
{},
},
},
expErr: errIncorrectAlphabet,
},
{
name: "incorrect main TX Alphabet witness compat",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
VerificationScript: wrongAlphaVerificationScript,
InvocationScript: dummyAlphabetInvocationScriptOld,
},
{},
},
},
expErr: errIncorrectAlphabet,
},
{
name: "incorrect main TX Notary witness",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
VerificationScript: alphaVerificationScript,
InvocationScript: dummyAlphabetInvocationScript,
},
{
InvocationScript: wrongDummyInvocationScript,
},
},
},
expErr: errIncorrectNotaryPlaceholder,
},
{
name: "incorrect main TX Notary witness compat",
addW: false,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
VerificationScript: alphaVerificationScript,
InvocationScript: dummyAlphabetInvocationScriptOld,
},
{
InvocationScript: wrongDummyInvocationScript,
},
},
},
expErr: errIncorrectNotaryPlaceholder,
},
{
name: "incorrect fb TX attributes amount",
addW: false,
fbTX: fbTX{
attrs: []transaction.Attribute{{}},
},
expErr: errIncorrectFBAttributesAmount,
},
{
name: "incorrect fb TX attributes",
addW: false,
fbTX: fbTX{
attrs: []transaction.Attribute{{}, {}, {}},
},
expErr: errIncorrectFBAttributes,
},
{
name: "expired fb TX",
addW: false,
fbTX: fbTX{
[]transaction.Attribute{
{},
{
Type: transaction.NotValidBeforeT,
Value: &transaction.NotValidBefore{
Height: 1,
},
},
{},
},
},
expErr: ErrMainTXExpired,
},
{
name: "incorrect invoker TX Alphabet witness",
addW: true,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
VerificationScript: alphaVerificationScript,
InvocationScript: dummyAlphabetInvocationScript,
},
{},
{},
},
},
expErr: errIncorrectInvokerWitnesses,
},
{
name: "incorrect invoker TX Alphabet witness compat",
addW: true,
mTX: mTX{
scripts: []transaction.Witness{
{},
{
VerificationScript: alphaVerificationScript,
InvocationScript: dummyAlphabetInvocationScriptOld,
},
{},
{},
},
},
expErr: errIncorrectInvokerWitnesses,
},
{
name: "incorrect main TX attribute with invoker",
addW: true,
mTX: mTX{
attrs: []transaction.Attribute{
{
Value: &transaction.NotaryAssisted{
NKeys: uint8(len(alphaKeys) + 2),
},
},
},
},
expErr: errIncorrectAttribute,
},
}
preparator := notaryPreparator(
PreparatorPrm{
alphaKeysSource(),
blockCounter{100, nil},
},
)
var (
incorrectNR payload.P2PNotaryRequest
err error
)
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
correctNR := correctNR(nil, false, test.addW)
incorrectNR = setIncorrectFields(*correctNR, test.mTX, test.fbTX)
_, err = preparator.Prepare(&incorrectNR)
require.EqualError(t, err, test.expErr.Error())
})
}
}
func TestPrepare_CorrectNR(t *testing.T) {
tests := []struct {
hash util.Uint160
method string
args []any
}{
{
scriptHash,
"test1",
nil,
},
{
scriptHash,
"test2",
[]any{
int64(4),
"test",
[]any{
int64(4),
false,
true,
},
},
},
}
preparator := notaryPreparator(
PreparatorPrm{
alphaKeysSource(),
blockCounter{100, nil},
},
)
for _, test := range tests {
for i := 0; i < 1; i++ { // run tests against 3 and 4 witness NR
for _, dummyMultisig := range []bool{true, false} { // run tests against empty and dummy multisig/Notary witness
additionalWitness := i == 0
nr := correctNR(script(test.hash, test.method, test.args...), dummyMultisig, additionalWitness)
event, err := preparator.Prepare(nr)
require.NoError(t, err)
require.Equal(t, test.method, event.Type().String())
require.Equal(t, test.hash.StringLE(), event.ScriptHash().StringLE())
// check args parsing
bw := io.NewBufBinWriter()
emit.Array(bw.BinWriter, test.args...)
ctx := vm.NewContext(bw.Bytes())
opCode, param, err := ctx.Next()
require.NoError(t, err)
for _, opGot := range event.Params() {
require.Equal(t, opCode, opGot.code)
require.Equal(t, param, opGot.param)
opCode, param, err = ctx.Next()
require.NoError(t, err)
}
_, _, err = ctx.Next() // PACK opcode
require.NoError(t, err)
_, _, err = ctx.Next() // packing len opcode
require.NoError(t, err)
opCode, _, err = ctx.Next()
require.NoError(t, err)
require.Equal(t, opcode.RET, opCode)
}
}
}
}
func alphaKeysSource() client.AlphabetKeys {
return func() (keys.PublicKeys, error) {
return alphaKeys, nil
}
}
func script(hash util.Uint160, method string, args ...any) []byte {
bw := io.NewBufBinWriter()
if len(args) > 0 {
emit.AppCall(bw.BinWriter, hash, method, callflag.All, args)
} else {
emit.AppCallNoArgs(bw.BinWriter, hash, method, callflag.All)
}
return bw.Bytes()
}
func correctNR(script []byte, dummyMultisig, additionalWitness bool) *payload.P2PNotaryRequest {
alphaVerificationScript, _ := smartcontract.CreateMultiSigRedeemScript(len(alphaKeys)*2/3+1, alphaKeys)
signers := []transaction.Signer{
{},
{
Account: hash.Hash160(alphaVerificationScript),
},
{},
}
if additionalWitness { // insert on element with index 2
signers = append(signers[:2+1], signers[2:]...)
signers[2] = transaction.Signer{Account: hash.Hash160(alphaVerificationScript)}
}
multisigInv := dummyAlphabetInvocationScript
if dummyMultisig {
multisigInv = dummyAlphabetInvocationScriptOld
}
scripts := []transaction.Witness{
{},
{
InvocationScript: multisigInv,
VerificationScript: alphaVerificationScript,
},
{
InvocationScript: multisigInv,
},
}
if additionalWitness { // insert on element with index 2
scripts = append(scripts[:2+1], scripts[2:]...)
scripts[2] = transaction.Witness{
InvocationScript: multisigInv,
VerificationScript: alphaVerificationScript,
}
}
nKeys := uint8(len(alphaKeys))
if additionalWitness {
nKeys++
}
return &payload.P2PNotaryRequest{
MainTransaction: &transaction.Transaction{
Signers: signers,
Scripts: scripts,
Attributes: []transaction.Attribute{
{
Value: &transaction.NotaryAssisted{
NKeys: nKeys,
},
},
},
Script: script,
},
FallbackTransaction: &transaction.Transaction{
Attributes: []transaction.Attribute{
{},
{
Type: transaction.NotValidBeforeT,
Value: &transaction.NotValidBefore{
Height: 1000,
},
},
{},
},
},
}
}