wormhole/ethereum/test/bridge.js

1563 lines
57 KiB
JavaScript

const jsonfile = require('jsonfile');
const elliptic = require('elliptic');
const BigNumber = require('bignumber.js');
const Wormhole = artifacts.require("Wormhole");
const TokenBridge = artifacts.require("TokenBridge");
const BridgeImplementation = artifacts.require("BridgeImplementation");
const TokenImplementation = artifacts.require("TokenImplementation");
const FeeToken = artifacts.require("FeeToken");
const MockBridgeImplementation = artifacts.require("MockBridgeImplementation");
const MockTokenBridgeIntegration = artifacts.require("MockTokenBridgeIntegration");
const MockWETH9 = artifacts.require("MockWETH9");
const testSigner1PK = "cfb12303a19cde580bb4dd771639b0d26bc68353645571a8cff516ab2ee113a0";
const testSigner2PK = "892330666a850761e7370376430bb8c2aa1494072d3bfeaed0c4fa3d5a9135fe";
const WormholeImplementationFullABI = jsonfile.readFileSync("build/contracts/Implementation.json").abi
const BridgeImplementationFullABI = jsonfile.readFileSync("build/contracts/BridgeImplementation.json").abi
const TokenImplementationFullABI = jsonfile.readFileSync("build/contracts/TokenImplementation.json").abi
const actionContractUpgrade = "02"
const actionRecoverChainId = "03"
const fakeChainId = 1337;
const fakeEvmChainId = 10001;
let lastDeployed;
contract("Bridge", function () {
const testSigner1 = web3.eth.accounts.privateKeyToAccount(testSigner1PK);
const testSigner2 = web3.eth.accounts.privateKeyToAccount(testSigner2PK);
const testChainId = "2";
const testEvmChainId = "1";
const testFinality = "1";
const testGovernanceChainId = "1";
const testGovernanceContract = "0x0000000000000000000000000000000000000000000000000000000000000004";
let WETH = process.env.BRIDGE_INIT_WETH;
const testForeignChainId = "1";
const testForeignBridgeContract = "0x000000000000000000000000000000000000000000000000000000000000ffff";
const testBridgedAssetChain = "0001";
const testBridgedAssetAddress = "000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e";
it("should be initialized with the correct signers and values", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const weth = await initialized.methods.WETH().call();
assert.equal(weth, WETH);
const tokenImplentation = await initialized.methods.tokenImplementation().call();
assert.equal(tokenImplentation, TokenImplementation.address);
// test beacon functionality
const beaconImplementation = await initialized.methods.implementation().call();
assert.equal(beaconImplementation, TokenImplementation.address);
// chain id
const chainId = await initialized.methods.chainId().call();
assert.equal(chainId, testChainId);
// evm chain id
const evmChainId = await initialized.methods.evmChainId().call();
assert.equal(evmChainId, testEvmChainId);
// finality
const finality = await initialized.methods.finality().call();
assert.equal(finality, testFinality);
// governance
const governanceChainId = await initialized.methods.governanceChainId().call();
assert.equal(governanceChainId, testGovernanceChainId);
const governanceContract = await initialized.methods.governanceContract().call();
assert.equal(governanceContract, testGovernanceContract);
})
it("should register a foreign bridge implementation correctly", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
let data = [
"0x",
"000000000000000000000000000000000000000000546f6b656e427269646765",
"01",
"0000",
web3.eth.abi.encodeParameter("uint16", testForeignChainId).substring(2 + (64 - 4)),
web3.eth.abi.encodeParameter("bytes32", testForeignBridgeContract).substring(2),
].join('')
const vm = await signAndEncodeVM(
1,
1,
testGovernanceChainId,
testGovernanceContract,
0,
data,
[
testSigner1PK
],
0,
0
);
let before = await initialized.methods.bridgeContracts(testForeignChainId).call();
assert.equal(before, "0x0000000000000000000000000000000000000000000000000000000000000000");
await initialized.methods.registerChain("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
let after = await initialized.methods.bridgeContracts(testForeignChainId).call();
assert.equal(after, testForeignBridgeContract);
})
it("should accept a valid upgrade", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
const mock = await MockBridgeImplementation.new();
let data = [
"0x",
"000000000000000000000000000000000000000000546f6b656e427269646765",
"02",
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)),
web3.eth.abi.encodeParameter("address", mock.address).substring(2),
].join('')
const vm = await signAndEncodeVM(
1,
1,
testGovernanceChainId,
testGovernanceContract,
0,
data,
[
testSigner1PK
],
0,
0
);
let before = await web3.eth.getStorageAt(TokenBridge.address, "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc");
assert.equal(before.toLowerCase(), BridgeImplementation.address.toLowerCase());
await initialized.methods.upgrade("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
let after = await web3.eth.getStorageAt(TokenBridge.address, "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc");
assert.equal(after.toLowerCase(), mock.address.toLowerCase());
const mockImpl = new web3.eth.Contract(MockBridgeImplementation.abi, TokenBridge.address);
let isUpgraded = await mockImpl.methods.testNewImplementationActive().call();
assert.ok(isUpgraded);
lastDeployed = mock;
})
it("bridged tokens should only be mint- and burn-able by owner", async function () {
const accounts = await web3.eth.getAccounts();
// initialize our template token contract
const token = new web3.eth.Contract(TokenImplementation.abi, TokenImplementation.address);
await token.methods.initialize(
"TestToken",
"TT",
18,
0,
accounts[0],
0,
"0x0"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
await token.methods.mint(accounts[0], 10).send({
from: accounts[0],
gasLimit: 2000000
});
await token.methods.burn(accounts[0], 5).send({
from: accounts[0],
gasLimit: 2000000
});
let failed = false
try {
await token.methods.mint(accounts[0], 10).send({
from: accounts[1],
gasLimit: 2000000
});
} catch (e) {
failed = true
}
assert.ok(failed)
failed = false
try {
await token.methods.burn(accounts[0], 5).send({
from: accounts[1],
gasLimit: 2000000
});
} catch (e) {
failed = true
}
assert.ok(failed)
await token.methods.burn(accounts[0], 5).send({
from: accounts[0],
gasLimit: 2000000
});
})
it("should attest a token correctly", async function () {
const accounts = await web3.eth.getAccounts();
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
await initialized.methods.attestToken(TokenImplementation.address, "234").send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const wormhole = new web3.eth.Contract(WormholeImplementationFullABI, Wormhole.address);
const log = (await wormhole.getPastEvents('LogMessagePublished', {
fromBlock: 'latest'
}))[0].returnValues
assert.equal(log.sender, TokenBridge.address)
assert.equal(log.payload.length - 2, 200);
// payload id
assert.equal(log.payload.substr(2, 2), "02");
// token address
assert.equal(log.payload.substr(4, 64), web3.eth.abi.encodeParameter("address", TokenImplementation.address).substring(2));
// chain id
assert.equal(log.payload.substr(68, 4), web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + 64 - 4))
// decimals
assert.equal(log.payload.substr(72, 2), web3.eth.abi.encodeParameter("uint8", 18).substring(2 + 64 - 2))
// symbol (TT)
assert.equal(log.payload.substr(74, 64), "5454000000000000000000000000000000000000000000000000000000000000")
// name (TestToken)
assert.equal(log.payload.substr(138, 64), "54657374546f6b656e0000000000000000000000000000000000000000000000")
})
it("should correctly deploy a wrapped asset for a token attestation", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
const data = "0x02" +
// tokenAddress
testBridgedAssetAddress +
// tokenchain
testBridgedAssetChain +
// decimals
"12" +
// symbol
"5454000000000000000000000000000000000000000000000000000000000000" +
// name
"54657374546f6b656e0000000000000000000000000000000000000000000000";
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
await initialized.methods.createWrapped("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const wrappedAddress = await initialized.methods.wrappedAsset("0x0001", "0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e").call();
assert.ok(await initialized.methods.isWrappedAsset(wrappedAddress).call())
const initializedWrappedAsset = new web3.eth.Contract(TokenImplementation.abi, wrappedAddress);
const symbol = await initializedWrappedAsset.methods.symbol().call();
assert.equal(symbol, "TT");
const name = await initializedWrappedAsset.methods.name().call();
assert.equal(name, "TestToken");
const decimals = await initializedWrappedAsset.methods.decimals().call();
assert.equal(decimals, 18);
const chainId = await initializedWrappedAsset.methods.chainId().call();
assert.equal(chainId, 1);
const nativeContract = await initializedWrappedAsset.methods.nativeContract().call();
assert.equal(nativeContract, "0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
})
it("should correctly update a wrapped asset for a token attestation", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
const data = "0x02" +
// tokenAddress
testBridgedAssetAddress +
// tokenchain
testBridgedAssetChain +
// decimals
"12" +
// symbol
"5555000000000000000000000000000000000000000000000000000000000000" +
// name
"5472656500000000000000000000000000000000000000000000000000000000";
let vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
let failed = false;
try {
await initialized.methods.updateWrapped("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
} catch (error) {
assert.equal(error.message, "Returned error: VM Exception while processing transaction: revert current metadata is up to date")
failed = true
}
assert.ok(failed)
vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
1,
data,
[
testSigner1PK
],
0,
0
);
await initialized.methods.updateWrapped("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const wrappedAddress = await initialized.methods.wrappedAsset("0x0001", "0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e").call();
assert.ok(await initialized.methods.isWrappedAsset(wrappedAddress).call())
const initializedWrappedAsset = new web3.eth.Contract(TokenImplementation.abi, wrappedAddress);
const symbol = await initializedWrappedAsset.methods.symbol().call();
assert.equal(symbol, "UU");
const name = await initializedWrappedAsset.methods.name().call();
assert.equal(name, "Tree");
const decimals = await initializedWrappedAsset.methods.decimals().call();
assert.equal(decimals, 18);
const chainId = await initializedWrappedAsset.methods.chainId().call();
assert.equal(chainId, 1);
const nativeContract = await initializedWrappedAsset.methods.nativeContract().call();
assert.equal(nativeContract, "0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
})
it("should deposit and log transfers correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
const fee = "100000000000000000";
// mint and approve tokens
const token = new web3.eth.Contract(TokenImplementation.abi, TokenImplementation.address);
await token.methods.mint(accounts[0], amount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
await token.methods.approve(TokenBridge.address, amount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accountBalanceBefore = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(accountBalanceBefore.toString(10), amount);
assert.equal(bridgeBalanceBefore.toString(10), "0");
await initialized.methods.transferTokens(
TokenImplementation.address,
amount,
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
fee,
"234"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const accountBalanceAfter = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(accountBalanceAfter.toString(10), "0");
assert.equal(bridgeBalanceAfter.toString(10), amount);
// check transfer log
const wormhole = new web3.eth.Contract(WormholeImplementationFullABI, Wormhole.address);
const log = (await wormhole.getPastEvents('LogMessagePublished', {
fromBlock: 'latest'
}))[0].returnValues
assert.equal(log.sender, TokenBridge.address)
assert.equal(log.payload.length - 2, 266);
// payload id
assert.equal(log.payload.substr(2, 2), "01");
// amount
assert.equal(log.payload.substr(4, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2));
// token
assert.equal(log.payload.substr(68, 64), web3.eth.abi.encodeParameter("address", TokenImplementation.address).substring(2));
// chain id
assert.equal(log.payload.substr(132, 4), web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + 64 - 4))
// to
assert.equal(log.payload.substr(136, 64), "000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
// to chain id
assert.equal(log.payload.substr(200, 4), web3.eth.abi.encodeParameter("uint16", 10).substring(2 + 64 - 4))
// fee
assert.equal(log.payload.substr(204, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(fee).div(1e10).toString()).substring(2))
})
it("should deposit and log fee token transfers correctly", async function () {
const accounts = await web3.eth.getAccounts();
const mintAmount = "10000000000000000000";
const amount = "1000000000000000000";
const fee = "100000000000000000";
// mint and approve tokens
const deployFeeToken = await FeeToken.new();
const token = new web3.eth.Contract(FeeToken.abi, deployFeeToken.address);
await token.methods.initialize(
"Test",
"TST",
"18",
"123",
accounts[0],
"0",
"0x0000000000000000000000000000000000000000000000000000000000000000"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
await token.methods.mint(accounts[0], mintAmount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
await token.methods.approve(TokenBridge.address, mintAmount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(bridgeBalanceBefore.toString(10), "0");
await initialized.methods.transferTokens(
deployFeeToken.address,
amount,
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
fee,
"234"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
let feeAmount = new BigNumber(amount).times(9).div(10)
assert.equal(bridgeBalanceAfter.toString(10), feeAmount);
// check transfer log
const wormhole = new web3.eth.Contract(WormholeImplementationFullABI, Wormhole.address);
const log = (await wormhole.getPastEvents('LogMessagePublished', {
fromBlock: 'latest'
}))[0].returnValues
assert.equal(log.sender, TokenBridge.address)
assert.equal(log.payload.length - 2, 266);
// payload id
assert.equal(log.payload.substr(2, 2), "01");
// amount
assert.equal(log.payload.substr(4, 64), web3.eth.abi.encodeParameter("uint256", feeAmount.div(1e10).toString()).substring(2));
// token
assert.equal(log.payload.substr(68, 64), web3.eth.abi.encodeParameter("address", deployFeeToken.address).substring(2));
// chain id
assert.equal(log.payload.substr(132, 4), web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + 64 - 4))
// to
assert.equal(log.payload.substr(136, 64), "000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
// to chain id
assert.equal(log.payload.substr(200, 4), web3.eth.abi.encodeParameter("uint16", 10).substring(2 + 64 - 4))
// fee
assert.equal(log.payload.substr(204, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(fee).div(1e10).toString()).substring(2))
})
it("should transfer out locked assets for a valid transfer vm", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
const token = new web3.eth.Contract(TokenImplementation.abi, TokenImplementation.address);
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accountBalanceBefore = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(accountBalanceBefore.toString(10), "0");
assert.equal(bridgeBalanceBefore.toString(10), amount);
const data = "0x" +
"01" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
web3.eth.abi.encodeParameter("address", TokenImplementation.address).substr(2) +
// tokenchain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// receiver
web3.eth.abi.encodeParameter("address", accounts[0]).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// fee
"0000000000000000000000000000000000000000000000000000000000000000";
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
await initialized.methods.completeTransfer("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const accountBalanceAfter = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(accountBalanceAfter.toString(10), amount);
assert.equal(bridgeBalanceAfter.toString(10), "0");
})
it("should deposit and log transfer with payload correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
// mint and approve tokens
const token = new web3.eth.Contract(TokenImplementation.abi, TokenImplementation.address);
await token.methods.mint(accounts[0], amount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
await token.methods.approve(TokenBridge.address, amount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accountBalanceBefore = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(bridgeBalanceBefore.toString(10), "0");
const additionalPayload = "abc123"
await initialized.methods.transferTokensWithPayload(
TokenImplementation.address,
amount,
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
"234",
"0x" + additionalPayload
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const accountBalanceAfter = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(accountBalanceAfter.toString(10), new BigNumber(accountBalanceBefore).minus(amount).toString(10));
assert.equal(bridgeBalanceAfter.toString(10), amount);
// check transfer log
const wormhole = new web3.eth.Contract(WormholeImplementationFullABI, Wormhole.address);
const log = (await wormhole.getPastEvents('LogMessagePublished', {
fromBlock: 'latest'
}))[0].returnValues
assert.equal(log.sender, TokenBridge.address)
assert.equal(log.payload.length - 2 - additionalPayload.length, 266);
// payload id
assert.equal(log.payload.substr(2, 2), "03");
// amount
assert.equal(log.payload.substr(4, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2));
// token
assert.equal(log.payload.substr(68, 64), web3.eth.abi.encodeParameter("address", TokenImplementation.address).substring(2));
// chain id
assert.equal(log.payload.substr(132, 4), web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + 64 - 4))
// to
assert.equal(log.payload.substr(136, 64), "000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
// to chain id
assert.equal(log.payload.substr(200, 4), web3.eth.abi.encodeParameter("uint16", 10).substring(2 + 64 - 4))
// from address
// the actual type is bytes32, but here we use 'address' encoding so that it gets left-padded as expected
assert.equal(log.payload.substr(204, 64), web3.eth.abi.encodeParameter("address", accounts[0]).substring(2))
// payload
assert.equal(log.payload.substr(268), additionalPayload)
})
it("should transfer out locked assets for a valid transfer with payload vm", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
const token = new web3.eth.Contract(TokenImplementation.abi, TokenImplementation.address);
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accountBalanceBefore = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(bridgeBalanceBefore.toString(10), amount);
const data = "0x" +
"03" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
web3.eth.abi.encodeParameter("address", TokenImplementation.address).substr(2) +
// tokenchain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// receiver
web3.eth.abi.encodeParameter("address", accounts[0]).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// fee
"0000000000000000000000000000000000000000000000000000000000000000" +
// additional payload
"abc123";
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
await initialized.methods.completeTransferWithPayload("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const accountBalanceAfter = await token.methods.balanceOf(accounts[0]).call();
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(accountBalanceAfter.toString(10), new BigNumber(accountBalanceBefore).plus(amount).toString(10));
assert.equal(bridgeBalanceAfter.toString(10), "0");
})
it("should mint bridged assets wrappers on transfer from another chain and handle fees correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
const fee = "1000000000000000";
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const wrappedAddress = await initialized.methods.wrappedAsset("0x" + testBridgedAssetChain, "0x" + testBridgedAssetAddress).call();
const wrappedAsset = new web3.eth.Contract(TokenImplementation.abi, wrappedAddress);
const totalSupply = await wrappedAsset.methods.totalSupply().call();
assert.equal(totalSupply.toString(10), "0");
// we are using the asset where we created a wrapper in the previous test
const data = "0x" +
"01" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
testBridgedAssetAddress +
// tokenchain
testBridgedAssetChain +
// receiver
web3.eth.abi.encodeParameter("address", accounts[0]).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// fee
web3.eth.abi.encodeParameter("uint256", new BigNumber(fee).div(1e10).toString()).substring(2);
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
await initialized.methods.completeTransfer("0x" + vm).send({
value: 0,
from: accounts[1],
gasLimit: 2000000
});
const accountBalanceAfter = await wrappedAsset.methods.balanceOf(accounts[0]).call();
const senderBalanceAfter = await wrappedAsset.methods.balanceOf(accounts[1]).call();
const totalSupplyAfter = await wrappedAsset.methods.totalSupply().call();
assert.equal(accountBalanceAfter.toString(10), new BigNumber(amount).minus(fee).toString(10));
assert.equal(senderBalanceAfter.toString(10), fee);
assert.equal(totalSupplyAfter.toString(10), amount);
await wrappedAsset.methods.transfer(accounts[0], fee).send({
value: 0,
from: accounts[1],
gasLimit: 2000000
});
})
it("should not allow a redemption from msg.sender other than 'to' on token bridge transfer with payload", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const wrappedAddress = await initialized.methods.wrappedAsset("0x" + testBridgedAssetChain, "0x" + testBridgedAssetAddress).call();
const wrappedAsset = new web3.eth.Contract(TokenImplementation.abi, wrappedAddress);
// we are using the asset where we created a wrapper in the previous test
const data = "0x" +
"03" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
testBridgedAssetAddress +
// tokenchain
testBridgedAssetChain +
// receiver (must be self msg.sender)
web3.eth.abi.encodeParameter("address", accounts[0]).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// from address
web3.eth.abi.encodeParameter("address", accounts[2]).substring(2) +
// additional payload
web3.eth.abi.encodeParameter("address", accounts[1]).substr(2);
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
1,
data,
[
testSigner1PK
],
0,
0
);
let hadSenderError = false
try {
await initialized.methods.completeTransferWithPayload("0x" + vm).send({
value: 0,
from: accounts[1],
gasLimit: 2000000
});
} catch (e) {
hadSenderError = e.message.includes('revert invalid sender')
}
assert.equal(hadSenderError, true)
})
it("should allow a redemption from msg.sender == 'to' on token bridge transfer with payload and check that sender recieves fee", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "1000000000000000000";
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
mock = (await MockTokenBridgeIntegration.new()).address;
const MockIntegration = new web3.eth.Contract(MockTokenBridgeIntegration.abi, mock);
await MockIntegration.methods.setup(TokenBridge.address).send({
value: 0,
from: accounts[1],
gasLimit: 2000000
});
const wrappedAddress = await initialized.methods.wrappedAsset("0x" + testBridgedAssetChain, "0x" + testBridgedAssetAddress).call();
const wrappedAsset = new web3.eth.Contract(TokenImplementation.abi, wrappedAddress);
const accountBalanceBefore = await wrappedAsset.methods.balanceOf(accounts[0]).call();
const senderBalanceBefore = await wrappedAsset.methods.balanceOf(accounts[1]).call();
const totalSupplyBefore = await wrappedAsset.methods.totalSupply().call();
// we are using the asset where we created a wrapper in the previous test
const data = "0x" +
"03" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
testBridgedAssetAddress +
// tokenchain
testBridgedAssetChain +
// receiver
web3.eth.abi.encodeParameter("address", mock).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// from address
web3.eth.abi.encodeParameter("address", accounts[1]).substring(2) +
// additional payload
web3.eth.abi.encodeParameter("address", accounts[0]).substr(2);
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
2,
data,
[
testSigner1PK
],
0,
0
);
await MockIntegration.methods.completeTransferAndSwap("0x" + vm).send({
value: 0,
from: accounts[1],
gasLimit: 2000000
});
const accountBalanceAfter = await wrappedAsset.methods.balanceOf(accounts[0]).call();
const totalSupplyAfter = await wrappedAsset.methods.totalSupply().call();
assert.equal(accountBalanceAfter.toString(10), new BigNumber(accountBalanceBefore).plus(amount).toString(10));
assert.equal(totalSupplyAfter.toString(10), new BigNumber(totalSupplyBefore).plus(amount).toString(10));
})
it("should burn bridged assets wrappers on transfer to another chain", async function () {
const accounts = await web3.eth.getAccounts();
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const amount = "2000000000000000000";
const wrappedFeesPaid = "0";
const wrappedAddress = await initialized.methods.wrappedAsset("0x" + testBridgedAssetChain, "0x" + testBridgedAssetAddress).call();
const wrappedAsset = new web3.eth.Contract(TokenImplementation.abi, wrappedAddress);
await wrappedAsset.methods.approve(TokenBridge.address, amount).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const accountBalanceBefore = await wrappedAsset.methods.balanceOf(accounts[0]).call();
assert.equal(accountBalanceBefore.toString(10), amount);
await initialized.methods.transferTokens(
wrappedAddress,
amount,
"11",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
"0",
"234"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
const accountBalanceAfter = await wrappedAsset.methods.balanceOf(accounts[0]).call();
assert.equal(accountBalanceAfter.toString(10), "0");
const bridgeBalanceAfter = await wrappedAsset.methods.balanceOf(TokenBridge.address).call();
assert.equal(bridgeBalanceAfter.toString(10), "0");
const totalSupplyAfter = await wrappedAsset.methods.totalSupply().call();
assert.equal(totalSupplyAfter.toString(10), wrappedFeesPaid);
})
it("should handle ETH deposits correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "100000000000000000";
const fee = "10000000000000000";
// mint and approve tokens
WETH = (await MockWETH9.new()).address;
const token = new web3.eth.Contract(MockWETH9.abi, WETH);
// set WETH contract
const mock = new web3.eth.Contract(MockBridgeImplementation.abi, TokenBridge.address);
mock.methods.testUpdateWETHAddress(WETH).send({
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const totalWETHSupply = await token.methods.totalSupply().call();
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(totalWETHSupply.toString(10), "0");
assert.equal(bridgeBalanceBefore.toString(10), "0");
await initialized.methods.wrapAndTransferETH(
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
fee,
"234"
).send({
value: amount,
from: accounts[0],
gasLimit: 2000000
});
const totalWETHSupplyAfter = await token.methods.totalSupply().call();
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(totalWETHSupplyAfter.toString(10), amount);
assert.equal(bridgeBalanceAfter.toString(10), amount);
// check transfer log
const wormhole = new web3.eth.Contract(WormholeImplementationFullABI, Wormhole.address);
const log = (await wormhole.getPastEvents('LogMessagePublished', {
fromBlock: 'latest'
}))[0].returnValues
assert.equal(log.sender, TokenBridge.address)
assert.equal(log.payload.length - 2, 266);
// payload id
assert.equal(log.payload.substr(2, 2), "01");
// amount
assert.equal(log.payload.substr(4, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2));
// token
assert.equal(log.payload.substr(68, 64), web3.eth.abi.encodeParameter("address", WETH).substring(2));
// chain id
assert.equal(log.payload.substr(132, 4), web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + 64 - 4))
// to
assert.equal(log.payload.substr(136, 64), "000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
// to chain id
assert.equal(log.payload.substr(200, 4), web3.eth.abi.encodeParameter("uint16", 10).substring(2 + 64 - 4))
// fee
assert.equal(log.payload.substr(204, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(fee).div(1e10).toString()).substring(2))
})
it("should handle ETH withdrawals and fees correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "100000000000000000";
const fee = "50000000000000000";
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const token = new web3.eth.Contract(MockWETH9.abi, WETH);
const totalSupply = await token.methods.totalSupply().call();
assert.equal(totalSupply.toString(10), amount);
const feeRecipientBalanceBefore = await web3.eth.getBalance(accounts[0]);
const accountBalanceBefore = await web3.eth.getBalance(accounts[1]);
// we are using the asset where we created a wrapper in the previous test
const data = "0x" +
"01" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
web3.eth.abi.encodeParameter("address", WETH).substr(2) +
// tokenchain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// receiver
web3.eth.abi.encodeParameter("address", accounts[1]).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// fee
web3.eth.abi.encodeParameter("uint256", new BigNumber(fee).div(1e10).toString()).substring(2);
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
const transferTX = await initialized.methods.completeTransferAndUnwrapETH("0x" + vm).send({
from: accounts[0],
gasLimit: 2000000
});
const totalSupplyAfter = await token.methods.totalSupply().call();
assert.equal(totalSupplyAfter.toString(10), "0");
const accountBalanceAfter = await web3.eth.getBalance(accounts[1]);
const feeRecipientBalanceAfter = await web3.eth.getBalance(accounts[0]);
assert.equal((new BigNumber(accountBalanceAfter)).minus(accountBalanceBefore).toString(10), (new BigNumber(amount)).minus(fee).toString(10))
assert.ok((new BigNumber(feeRecipientBalanceAfter)).gt(feeRecipientBalanceBefore))
})
it("should handle ETH deposits with payload correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "100000000000000000";
// mint and approve tokens
WETH = (await MockWETH9.new()).address;
const token = new web3.eth.Contract(MockWETH9.abi, WETH);
// set WETH contract
const mock = new web3.eth.Contract(MockBridgeImplementation.abi, TokenBridge.address);
mock.methods.testUpdateWETHAddress(WETH).send({
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const totalWETHSupply = await token.methods.totalSupply().call();
const bridgeBalanceBefore = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(totalWETHSupply.toString(10), "0");
assert.equal(bridgeBalanceBefore.toString(10), "0");
const additionalPayload = "abc123"
await initialized.methods.wrapAndTransferETHWithPayload(
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
"234",
"0x" + additionalPayload
).send({
value: amount,
from: accounts[0],
gasLimit: 2000000
});
const totalWETHSupplyAfter = await token.methods.totalSupply().call();
const bridgeBalanceAfter = await token.methods.balanceOf(TokenBridge.address).call();
assert.equal(totalWETHSupplyAfter.toString(10), amount);
assert.equal(bridgeBalanceAfter.toString(10), amount);
// check transfer log
const wormhole = new web3.eth.Contract(WormholeImplementationFullABI, Wormhole.address);
const log = (await wormhole.getPastEvents('LogMessagePublished', {
fromBlock: 'latest'
}))[0].returnValues
assert.equal(log.sender, TokenBridge.address)
assert.equal(log.payload.length - 2 - additionalPayload.length, 266);
// payload id
assert.equal(log.payload.substr(2, 2), "03");
// amount
assert.equal(log.payload.substr(4, 64), web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2));
// token
assert.equal(log.payload.substr(68, 64), web3.eth.abi.encodeParameter("address", WETH).substring(2));
// chain id
assert.equal(log.payload.substr(132, 4), web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + 64 - 4))
// to
assert.equal(log.payload.substr(136, 64), "000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e");
// to chain id
assert.equal(log.payload.substr(200, 4), web3.eth.abi.encodeParameter("uint16", 10).substring(2 + 64 - 4))
// from address
assert.equal(log.payload.substr(204, 64), web3.eth.abi.encodeParameter("address", accounts[0]).substring(2))
// payload
assert.equal(log.payload.substr(268), additionalPayload)
})
it("should handle ETH withdrawals with payload correctly", async function () {
const accounts = await web3.eth.getAccounts();
const amount = "100000000000000000";
const fee = "0";
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const token = new web3.eth.Contract(MockWETH9.abi, WETH);
const totalSupply = await token.methods.totalSupply().call();
assert.equal(totalSupply.toString(10), amount);
const accountBalanceBefore = await web3.eth.getBalance(accounts[0]);
// we are using the asset where we created a wrapper in the previous test
const data = "0x" +
"03" +
// amount
web3.eth.abi.encodeParameter("uint256", new BigNumber(amount).div(1e10).toString()).substring(2) +
// tokenaddress
web3.eth.abi.encodeParameter("address", WETH).substr(2) +
// tokenchain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// receiver
web3.eth.abi.encodeParameter("address", accounts[0]).substr(2) +
// receiving chain
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)) +
// fee
web3.eth.abi.encodeParameter("uint256", new BigNumber(fee).toString()).substring(2) +
// additional payload
"abc123"
const vm = await signAndEncodeVM(
0,
0,
testForeignChainId,
testForeignBridgeContract,
0,
data,
[
testSigner1PK
],
0,
0
);
const transferTX = await initialized.methods.completeTransferAndUnwrapETHWithPayload("0x" + vm).send({
from: accounts[0], //must be same as receiver
gasLimit: 2000000
});
const totalSupplyAfter = await token.methods.totalSupply().call();
assert.equal(totalSupplyAfter.toString(10), "0");
const accountBalanceAfter = await web3.eth.getBalance(accounts[0]);
assert.ok((new BigNumber(accountBalanceAfter)).gt(accountBalanceBefore))
})
it("should revert on transfer out of a total of > max(uint64) tokens", async function () {
const accounts = await web3.eth.getAccounts();
const supply = "184467440737095516160000000000";
const firstTransfer = "1000000000000";
// mint and approve tokens
const token = new web3.eth.Contract(TokenImplementation.abi, TokenImplementation.address);
await token.methods.mint(accounts[0], supply).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
await token.methods.approve(TokenBridge.address, supply).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
// deposit tokens
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
await initialized.methods.transferTokens(
TokenImplementation.address,
firstTransfer,
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
"0",
"0"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
let failed = false;
try {
await initialized.methods.transferTokens(
TokenImplementation.address,
new BigNumber(supply).minus(firstTransfer).toString(10),
"10",
"0x000000000000000000000000b7a2211e8165943192ad04f5dd21bedc29ff003e",
"0",
"0"
).send({
value: 0,
from: accounts[0],
gasLimit: 2000000
});
} catch (error) {
assert.equal(error.message, "Returned error: VM Exception while processing transaction: revert transfer exceeds max outstanding bridged token amount")
failed = true
}
assert.ok(failed)
})
it("should reject smart contract upgrades on forks", async function () {
const mockInitialized = new web3.eth.Contract(MockBridgeImplementation.abi, TokenBridge.address);
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
const mock = await MockBridgeImplementation.new();
const timestamp = 1000;
const nonce = 1001;
const emitterChainId = testGovernanceChainId;
const emitterAddress = testGovernanceContract
// simulate a fork
await mockInitialized.methods.testOverwriteEVMChainId(fakeChainId, fakeEvmChainId).send({
value: 0,
from: accounts[0],
gasLimit: 1000000
});
const chainId = await initialized.methods.chainId().call();
assert.equal(chainId, fakeChainId);
const evmChainId = await initialized.methods.evmChainId().call();
assert.equal(evmChainId, fakeEvmChainId);
data = [
"0x",
"000000000000000000000000000000000000000000546f6b656e427269646765",
// Action 1 (Contract Upgrade)
actionContractUpgrade,
// ChainID
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)),
// New Contract Address
web3.eth.abi.encodeParameter("address", mock.address).substring(2),
].join('')
const vm = await signAndEncodeVM(
timestamp,
nonce,
emitterChainId,
emitterAddress,
0,
data,
[
testSigner1PK,
],
0,
0
);
try {
await initialized.methods.upgrade("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 1000000
});
assert.fail("governance packet accepted")
} catch (e) {
assert.equal(e.data[Object.keys(e.data)[0]].reason, "invalid fork")
}
})
it("should allow recover chain ID governance packets forks", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
const timestamp = 1000;
const nonce = 1001;
const emitterChainId = testGovernanceChainId;
const emitterAddress = testGovernanceContract
const chainId = await initialized.methods.chainId().call();
assert.equal(chainId, fakeChainId);
const evmChainId = await initialized.methods.evmChainId().call();
assert.equal(evmChainId, fakeEvmChainId);
data = [
"0x",
"000000000000000000000000000000000000000000546f6b656e427269646765",
// Action 3 (Recover Chain ID)
actionRecoverChainId,
// EvmChainID
web3.eth.abi.encodeParameter("uint256", testEvmChainId).substring(2),
// NewChainID
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)),
].join('')
const vm = await signAndEncodeVM(
timestamp,
nonce,
emitterChainId,
emitterAddress,
0,
data,
[
testSigner1PK,
],
0,
0
);
await initialized.methods.submitRecoverChainId("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 1000000
});
const newChainId = await initialized.methods.chainId().call();
assert.equal(newChainId, testChainId);
const newEvmChainId = await initialized.methods.evmChainId().call();
assert.equal(newEvmChainId, testEvmChainId);
})
it("should accept smart contract upgrades after chain ID has been recovered", async function () {
const initialized = new web3.eth.Contract(BridgeImplementationFullABI, TokenBridge.address);
const accounts = await web3.eth.getAccounts();
const mock = await MockBridgeImplementation.new();
const timestamp = 1000;
const nonce = 1001;
const emitterChainId = testGovernanceChainId;
const emitterAddress = testGovernanceContract
data = [
"0x",
"000000000000000000000000000000000000000000546f6b656e427269646765",
// Action 2 (Contract Upgrade)
actionContractUpgrade,
// ChainID
web3.eth.abi.encodeParameter("uint16", testChainId).substring(2 + (64 - 4)),
// New Contract Address
web3.eth.abi.encodeParameter("address", mock.address).substring(2),
].join('')
const vm = await signAndEncodeVM(
timestamp,
nonce,
emitterChainId,
emitterAddress,
0,
data,
[
testSigner1PK,
],
0,
0
);
let before = await web3.eth.getStorageAt(TokenBridge.address, "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc");
assert.equal(before.toLowerCase(), lastDeployed.address.toLowerCase());
let set = await initialized.methods.upgrade("0x" + vm).send({
value: 0,
from: accounts[0],
gasLimit: 1000000
});
let after = await web3.eth.getStorageAt(TokenBridge.address, "0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc");
assert.equal(after.toLowerCase(), mock.address.toLowerCase());
const mockImpl = new web3.eth.Contract(MockBridgeImplementation.abi, TokenBridge.address);
let isUpgraded = await mockImpl.methods.testNewImplementationActive().call();
assert.ok(isUpgraded);
})
});
const signAndEncodeVM = async function (
timestamp,
nonce,
emitterChainId,
emitterAddress,
sequence,
data,
signers,
guardianSetIndex,
consistencyLevel
) {
const body = [
web3.eth.abi.encodeParameter("uint32", timestamp).substring(2 + (64 - 8)),
web3.eth.abi.encodeParameter("uint32", nonce).substring(2 + (64 - 8)),
web3.eth.abi.encodeParameter("uint16", emitterChainId).substring(2 + (64 - 4)),
web3.eth.abi.encodeParameter("bytes32", emitterAddress).substring(2),
web3.eth.abi.encodeParameter("uint64", sequence).substring(2 + (64 - 16)),
web3.eth.abi.encodeParameter("uint8", consistencyLevel).substring(2 + (64 - 2)),
data.substr(2)
]
const hash = web3.utils.soliditySha3(web3.utils.soliditySha3("0x" + body.join("")))
let signatures = "";
for (let i in signers) {
const ec = new elliptic.ec("secp256k1");
const key = ec.keyFromPrivate(signers[i]);
const signature = key.sign(hash.substr(2), { canonical: true });
const packSig = [
web3.eth.abi.encodeParameter("uint8", i).substring(2 + (64 - 2)),
zeroPadBytes(signature.r.toString(16), 32),
zeroPadBytes(signature.s.toString(16), 32),
web3.eth.abi.encodeParameter("uint8", signature.recoveryParam).substr(2 + (64 - 2)),
]
signatures += packSig.join("")
}
const vm = [
web3.eth.abi.encodeParameter("uint8", 1).substring(2 + (64 - 2)),
web3.eth.abi.encodeParameter("uint32", guardianSetIndex).substring(2 + (64 - 8)),
web3.eth.abi.encodeParameter("uint8", signers.length).substring(2 + (64 - 2)),
signatures,
body.join("")
].join("");
return vm
}
function zeroPadBytes(value, length) {
while (value.length < 2 * length) {
value = "0" + value;
}
return value;
}