go-waku/waku/v2/protocol/rln/onchain_test.go

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2022-08-10 17:10:23 +00:00
//go:build include_onchain_tests
// +build include_onchain_tests
2022-08-10 13:03:25 +00:00
package rln
import (
"context"
"crypto/ecdsa"
"crypto/rand"
"errors"
"math/big"
"sync"
"testing"
"time"
r "github.com/status-im/go-rln/rln"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/status-im/go-waku/tests"
"github.com/status-im/go-waku/waku/v2/protocol/relay"
"github.com/status-im/go-waku/waku/v2/protocol/rln/contracts"
"github.com/status-im/go-waku/waku/v2/utils"
"github.com/stretchr/testify/suite"
)
const ETH_CLIENT_ADDRESS = "ws://localhost:8545"
func TestWakuRLNRelayDynamicSuite(t *testing.T) {
suite.Run(t, new(WakuRLNRelayDynamicSuite))
}
type WakuRLNRelayDynamicSuite struct {
suite.Suite
backend *ethclient.Client
chainID *big.Int
rlnAddr common.Address
rlnContract *contracts.RLN
u1PrivKey *ecdsa.PrivateKey
u2PrivKey *ecdsa.PrivateKey
u3PrivKey *ecdsa.PrivateKey
u4PrivKey *ecdsa.PrivateKey
u5PrivKey *ecdsa.PrivateKey
}
func (s *WakuRLNRelayDynamicSuite) SetupTest() {
backend, err := ethclient.Dial(ETH_CLIENT_ADDRESS)
s.Require().NoError(err)
chainID, err := backend.ChainID(context.TODO())
s.Require().NoError(err)
// TODO: obtain account list from ganache mnemonic or from eth_accounts
s.u1PrivKey, err = crypto.ToECDSA(common.FromHex("0x156ec84a451d8a2d0062993242b6c4e863647f5544ff8030f23578d4142f43f8"))
s.Require().NoError(err)
s.u2PrivKey, err = crypto.ToECDSA(common.FromHex("0xa00da43843ad6b5161ddbace48f293ac3f82f8a8257af34de4c32900bb6e9a97"))
s.Require().NoError(err)
s.u3PrivKey, err = crypto.ToECDSA(common.FromHex("0xa4c8d3ed78cd722521fac9d734c45187a4f5e887570be1f707a7bbce054c01ea"))
s.Require().NoError(err)
s.u4PrivKey, err = crypto.ToECDSA(common.FromHex("0x6b11ba548a7fd1958eb156877cc7bdd02d99d876b55381aa9b106c16b0b7a805"))
s.Require().NoError(err)
s.u5PrivKey, err = crypto.ToECDSA(common.FromHex("0x0410196287d0af405e5c16f610de52416bd48be74836dbca93d73e24bffb5a81"))
s.Require().NoError(err)
s.backend = backend
s.chainID = chainID
// Deploying contracts
auth, err := bind.NewKeyedTransactorWithChainID(s.u1PrivKey, chainID)
s.Require().NoError(err)
poseidonHasherAddr, _, _, err := contracts.DeployPoseidonHasher(auth, backend)
s.Require().NoError(err)
rlnAddr, _, rlnContract, err := contracts.DeployRLN(auth, backend, MEMBERSHIP_FEE, big.NewInt(20), poseidonHasherAddr)
s.Require().NoError(err)
s.rlnAddr = rlnAddr
s.rlnContract = rlnContract
}
func (s *WakuRLNRelayDynamicSuite) register(privKey *ecdsa.PrivateKey, commitment *big.Int) {
auth, err := bind.NewKeyedTransactorWithChainID(privKey, s.chainID)
s.Require().NoError(err)
auth.Value = MEMBERSHIP_FEE
auth.Context = context.TODO()
tx, err := s.rlnContract.Register(auth, commitment)
s.Require().NoError(err)
_, err = bind.WaitMined(context.TODO(), s.backend, tx)
s.Require().NoError(err)
}
func (s *WakuRLNRelayDynamicSuite) TestDynamicGroupManagement() {
params, err := parametersKeyBytes()
s.Require().NoError(err)
// Create a RLN instance
rlnInstance, err := r.NewRLN(params)
s.Require().NoError(err)
keyPair, err := rlnInstance.MembershipKeyGen()
s.Require().NoError(err)
// initialize the WakuRLNRelay
rlnPeer := &WakuRLNRelay{
ctx: context.TODO(),
membershipIndex: r.MembershipIndex(0),
membershipContractAddress: s.rlnAddr,
ethClientAddress: ETH_CLIENT_ADDRESS,
ethAccountPrivateKey: s.u1PrivKey,
RLN: rlnInstance,
log: utils.Logger(),
nullifierLog: make(map[r.Epoch][]r.ProofMetadata),
membershipKeyPair: *keyPair,
}
// generate another membership key pair
keyPair2, err := rlnInstance.MembershipKeyGen()
s.Require().NoError(err)
wg := &sync.WaitGroup{}
wg.Add(2)
handler := func(pubkey r.IDCommitment, index r.MembershipIndex) error {
if pubkey == keyPair.IDCommitment || pubkey == keyPair2.IDCommitment {
wg.Done()
}
if !rlnInstance.InsertMember(pubkey) {
return errors.New("couldn't insert member")
}
return nil
}
// mount the handler for listening to the contract events
go rlnPeer.HandleGroupUpdates(handler)
// Register first member
s.register(s.u1PrivKey, toBigInt(keyPair.IDCommitment[:]))
// Register second member
s.register(s.u2PrivKey, toBigInt(keyPair2.IDCommitment[:]))
wg.Wait()
}
func (s *WakuRLNRelayDynamicSuite) TestInsertKeyMembershipContract() {
s.register(s.u1PrivKey, big.NewInt(20))
// Batch Register
auth, err := bind.NewKeyedTransactorWithChainID(s.u2PrivKey, s.chainID)
s.Require().NoError(err)
auth.Value = MEMBERSHIP_FEE.Mul(big.NewInt(2), MEMBERSHIP_FEE)
auth.Context = context.TODO()
tx, err := s.rlnContract.RegisterBatch(auth, []*big.Int{big.NewInt(20), big.NewInt(21)})
s.Require().NoError(err)
_, err = bind.WaitMined(context.TODO(), s.backend, tx)
s.Require().NoError(err)
}
func (s *WakuRLNRelayDynamicSuite) TestRegistrationProcedure() {
params, err := parametersKeyBytes()
s.Require().NoError(err)
// Create a RLN instance
rlnInstance, err := r.NewRLN(params)
s.Require().NoError(err)
keyPair, err := rlnInstance.MembershipKeyGen()
s.Require().NoError(err)
// initialize the WakuRLNRelay
rlnPeer := &WakuRLNRelay{
ctx: context.TODO(),
membershipIndex: r.MembershipIndex(0),
membershipContractAddress: s.rlnAddr,
ethClientAddress: ETH_CLIENT_ADDRESS,
ethAccountPrivateKey: s.u1PrivKey,
RLN: rlnInstance,
log: utils.Logger(),
nullifierLog: make(map[r.Epoch][]r.ProofMetadata),
membershipKeyPair: *keyPair,
}
_, err = rlnPeer.Register(context.TODO())
s.Require().NoError(err)
}
func (s *WakuRLNRelayDynamicSuite) TestMerkleTreeConstruction() {
params, err := parametersKeyBytes()
s.Require().NoError(err)
// Create a RLN instance
rlnInstance, err := r.NewRLN(params)
s.Require().NoError(err)
keyPair1, err := rlnInstance.MembershipKeyGen()
s.Require().NoError(err)
keyPair2, err := rlnInstance.MembershipKeyGen()
s.Require().NoError(err)
r1 := rlnInstance.InsertMember(keyPair1.IDCommitment)
r2 := rlnInstance.InsertMember(keyPair2.IDCommitment)
s.Require().True(r1)
s.Require().True(r2)
// get the Merkle root
expectedRoot, err := rlnInstance.GetMerkleRoot()
s.Require().NoError(err)
// register the members to the contract
s.register(s.u1PrivKey, toBigInt(keyPair1.IDCommitment[:]))
s.register(s.u1PrivKey, toBigInt(keyPair2.IDCommitment[:]))
port, err := tests.FindFreePort(s.T(), "", 5)
s.Require().NoError(err)
host, err := tests.MakeHost(context.TODO(), port, rand.Reader)
s.Require().NoError(err)
relay, err := relay.NewWakuRelay(context.TODO(), host, nil, 0, utils.Logger())
defer relay.Stop()
s.Require().NoError(err)
sub, err := relay.SubscribeToTopic(context.TODO(), RLNRELAY_PUBSUB_TOPIC)
s.Require().NoError(err)
defer sub.Unsubscribe()
// mount the rln relay protocol in the on-chain/dynamic mode
rlnRelay, err := RlnRelayDynamic(context.TODO(), relay, ETH_CLIENT_ADDRESS, nil, s.rlnAddr, keyPair1, r.MembershipIndex(0), RLNRELAY_PUBSUB_TOPIC, RLNRELAY_CONTENT_TOPIC, nil, utils.Logger())
s.Require().NoError(err)
// wait for the event to reach the group handler
time.Sleep(1 * time.Second)
// rln pks are inserted into the rln peer's Merkle tree and the resulting root
// is expected to be the same as the calculatedRoot i.e., the one calculated outside of the mountRlnRelayDynamic proc
calculatedRoot, err := rlnRelay.RLN.GetMerkleRoot()
s.Require().NoError(err)
s.Require().Equal(expectedRoot, calculatedRoot)
}
func (s *WakuRLNRelayDynamicSuite) TestCorrectRegistrationOfPeers() {
// Node 1 ============================================================
port1, err := tests.FindFreePort(s.T(), "", 5)
s.Require().NoError(err)
host1, err := tests.MakeHost(context.TODO(), port1, rand.Reader)
s.Require().NoError(err)
relay1, err := relay.NewWakuRelay(context.TODO(), host1, nil, 0, utils.Logger())
defer relay1.Stop()
s.Require().NoError(err)
sub1, err := relay1.SubscribeToTopic(context.TODO(), RLNRELAY_PUBSUB_TOPIC)
s.Require().NoError(err)
defer sub1.Unsubscribe()
// mount the rln relay protocol in the on-chain/dynamic mode
rlnRelay1, err := RlnRelayDynamic(context.TODO(), relay1, ETH_CLIENT_ADDRESS, s.u1PrivKey, s.rlnAddr, nil, r.MembershipIndex(0), RLNRELAY_PUBSUB_TOPIC, RLNRELAY_CONTENT_TOPIC, nil, utils.Logger())
s.Require().NoError(err)
// Node 2 ============================================================
port2, err := tests.FindFreePort(s.T(), "", 5)
s.Require().NoError(err)
host2, err := tests.MakeHost(context.TODO(), port2, rand.Reader)
s.Require().NoError(err)
relay2, err := relay.NewWakuRelay(context.TODO(), host2, nil, 0, utils.Logger())
defer relay2.Stop()
s.Require().NoError(err)
sub2, err := relay2.SubscribeToTopic(context.TODO(), RLNRELAY_PUBSUB_TOPIC)
s.Require().NoError(err)
defer sub2.Unsubscribe()
// mount the rln relay protocol in the on-chain/dynamic mode
rlnRelay2, err := RlnRelayDynamic(context.TODO(), relay2, ETH_CLIENT_ADDRESS, s.u2PrivKey, s.rlnAddr, nil, r.MembershipIndex(0), RLNRELAY_PUBSUB_TOPIC, RLNRELAY_CONTENT_TOPIC, nil, utils.Logger())
s.Require().NoError(err)
// ==================================
// the two nodes should be registered into the contract
// since nodes are spun up sequentially
// the first node has index 0 whereas the second node gets index 1
s.Require().Equal(r.MembershipIndex(0), rlnRelay1.membershipIndex)
s.Require().Equal(r.MembershipIndex(1), rlnRelay2.membershipIndex)
}