Im trying to integrate web3js with Trezor in a truffle dev network or using ropsten test network.
The idea is to sign the transactions using the hardware wallet and then send a raw transaction using web3js
Im getting that we dont have balance to make the transaction, probably because web3js isnt taking one of the 10 truffle accounts and is using the trezor address that isnt in my local network..
On ropsten i have some ethers and i get "invalid address"
Is there a way to send a signed transactions (with trezor) using web3js into a truffle develop network? i mean, is there a way to include the trezor address into the truffle network?
The situation in truffle is explained more in details here, but the question could be generalized to "is there a way to include hardware wallets into truffle development network?" : https://github.com/trufflesuite/truffle/issues/973
Using ropsten I have managed to send a transaction and receive a transaction hash in the callback, but if we query for that transaction we get that the transaction doesnt exists.. so.. how is that possible?
I tried deploying a contract into Ropsten too and now im getting "Invalid address" when invoking a smart contract function. Maybe the signing function is wrong? anyone could integrate Trezor transaction signining with web3js?
Do you guys see anything wrong in the signing and sending process that we have followed? Maybe is there something wrong on the R, V and S parameters handling ..
Another important thing is that i am using https://github.com/ethereumjs/ethereumjs-tx for creating the raw transactions
Issues published in web3js, truffle and trezzor connect with more information:
- https://github.com/trufflesuite/truffle/issues/973
- https://github.com/ethereum/web3.js/issues/1669
- https://github.com/trezor/connect/issues/130
kind regards
trezorLogin = async()=> {
let trezor= await this.getTrezor();
// site icon, optional. at least 48x48px
let hosticon = 'https://doc.satoshilabs.com/trezor-apps/_images/copay_logo.png';
// server-side generated and randomized challenges
let challenge_hidden = '';
let challenge_visual = '';
//use anonimous functions on callback otherwise returns cross origin errors
trezor.requestLogin(hosticon, challenge_hidden, challenge_visual, function (result){
if (result.success) {
console.log('Public key:', result.public_key); // pubkey in hex
console.log('Signature:', result.signature); // signature in hex
console.log('Version 2:', result.version === 2); // version field
console.log(result);
}else {
console.error('Error:', result.error);
}
});}
trezorSignTx= async(transaction)=> {
let trezor= await this.getTrezor();
// spend one change output
let address_n = "m/44'/60'/0'/0/0"
// let address_n = [44 | 0x80000000,
// 60 | 0x80000000,
// 0 | 0x80000000 ,
// 0 ]; // same, in raw form
let nonce = transaction.nonce.substring(2); // note - it is hex, not number!!!
let gas_price = transaction.gasPrice.substring(2);
let gas_limit = transaction.gasLimit.substring(2);
let to = transaction.to.substring(2);
// let value = '01'; // in hexadecimal, in wei - this is 1 wei
let value = transaction.value.substring(2); // in hexadecimal, in wei - this is about 18 ETC
let data = transaction.data.substring(2); // some contract data
// let data = null // for no data
let chain_id = 5777; // 1 for ETH, 61 for ETC
return new Promise (function (resolve,reject) {
trezor.ethereumSignTx(
address_n,
nonce,
gas_price,
gas_limit,
to,
value,
data,
chain_id,
function (response) {
if (response.success) {
console.log('Signature V (recovery parameter):', response.v); // number
console.log('Signature R component:', response.r); // bytes
console.log('Signature S component:', response.s); // bytes
resolve(response);
} else {
console.error('Error:', response.error); // error message
resolve(null);
}
});
})
}
getTrezorAddress = async() => {
let trezor= await this.getTrezor();
// spend one change output
let address_n = "m/44'/60'/0'/0/0";
trezor.ethereumGetAddress(address_n, function (result) {
if (result.success) { // success
console.log('Address: ', result.address);
} else {
console.error('Error:', result.error); // error message
}
});
}
getTrezor = async() => {
let trezorC;
await getTrezorConnect
.then(trezorConnect => {
trezorC= trezorConnect;
})
.catch((error) => {
console.log(error)
})
return trezorC;
}
sendTransaction= async(address, amount, id)=>{
let tokenInstance = this.props.smartContractInstance;
let getData = tokenInstance.mint.getData(address, amount);
let tx = {
nonce: '0x00',
gasPrice: '0x09184e72a000',
gasLimit: '0x2710',
to: CONTRACT_ADDRESS,
value: '0x00',
from:CONTRACT_OWNER_ADDRESS,
data: getData
};
let response = await this.trezorSignTx(tx);
let web3;
let _this = this;
if (response!=null){
getWeb3
.then(results => {
web3= results.web3;
let v = response.v.toString();
if (v.length % 2 != 0){
v="0"+v;
}
tx.r=Buffer.from(response.r,'hex');
tx.v=Buffer.from(v,'hex');
tx.s=Buffer.from(response.s,'hex');
let ethtx = new ethereumjs(tx);
console.dir(ethtx.getSenderAddress().toString('hex'), );
const serializedTx = ethtx.serialize();
const rawTx = '0x' + serializedTx.toString('hex');
console.log(rawTx);
//finally pass this data parameter to send Transaction
web3.eth.sendRawTransaction(rawTx, function (error, result) {
if(!error){
_this.props.addTokens(id)
.then(()=>{
_this.setState({modalOpen: true});
_this.props.getAllTransactions();
}
);
}else{
alert(error)
}
});
})
.catch((error) => {
console.log(error)
})
}else{
alert("There was an error signing with trezor hardware wallet")
}
}
The getTrezorConnect function is just get window.trezorConnect asynchronously because the object is injected as script
<script src="https://connect.trezor.io/4/connect.js"></script>
let getTrezorConnect = new Promise(function(resolve, reject) {
// Wait for loading completion
window.addEventListener('load', function() {
let trezorConnect = window.TrezorConnect
return resolve(trezorConnect)
})});
export default getTrezorConnect