mirror of
https://github.com/tornadocash/tornado-cli.git
synced 2024-11-21 17:27:07 +01:00
1499 lines
56 KiB
JavaScript
1499 lines
56 KiB
JavaScript
#!/usr/bin/env node
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// Works both in browser and node.js
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require('dotenv').config();
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const fs = require('fs');
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const axios = require('axios');
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const assert = require('assert');
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const snarkjs = require('snarkjs');
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const crypto = require('crypto');
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const circomlib = require('circomlib');
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const bigInt = snarkjs.bigInt;
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const merkleTree = require('fixed-merkle-tree');
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const Web3 = require('web3');
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const Web3HttpProvider = require('web3-providers-http');
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const buildGroth16 = require('websnark/src/groth16');
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const websnarkUtils = require('websnark/src/utils');
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const { toWei, fromWei, toBN, BN } = require('web3-utils');
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const BigNumber = require('bignumber.js');
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const config = require('./config');
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const program = require('commander');
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const { GasPriceOracle } = require('gas-price-oracle');
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const SocksProxyAgent = require('socks-proxy-agent');
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const is_ip_private = require('private-ip');
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let web3, torPort, tornado, tornadoContract, tornadoInstance, circuit, proving_key, groth16, erc20, senderAccount, netId, netName, netSymbol, doNotSubmitTx, multiCall, privateRpc, subgraph;
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let MERKLE_TREE_HEIGHT, ETH_AMOUNT, TOKEN_AMOUNT, PRIVATE_KEY;
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/** Whether we are in a browser or node.js */
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const inBrowser = typeof window !== 'undefined';
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let isTestRPC = false;
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/** Generate random number of specified byte length */
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const rbigint = (nbytes) => snarkjs.bigInt.leBuff2int(crypto.randomBytes(nbytes));
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/** Compute pedersen hash */
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const pedersenHash = (data) => circomlib.babyJub.unpackPoint(circomlib.pedersenHash.hash(data))[0];
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/** BigNumber to hex string of specified length */
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function toHex(number, length = 32) {
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const str = number instanceof Buffer ? number.toString('hex') : bigInt(number).toString(16);
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return '0x' + str.padStart(length * 2, '0');
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}
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/** Remove Decimal without rounding with BigNumber */
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function rmDecimalBN(bigNum, decimals = 6) {
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return new BigNumber(bigNum).times(BigNumber(10).pow(decimals)).integerValue(BigNumber.ROUND_DOWN).div(BigNumber(10).pow(decimals)).toNumber();
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}
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/** Use MultiCall Contract */
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async function useMultiCall(queryArray) {
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const multiCallABI = require('./build/contracts/Multicall.abi.json');
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const multiCallContract = new web3.eth.Contract(multiCallABI, multiCall);
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const { returnData } = await multiCallContract.methods.aggregate(queryArray).call();
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return returnData;
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}
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/** Display ETH account balance */
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async function printETHBalance({ address, name }) {
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const checkBalance = new BigNumber(await web3.eth.getBalance(address)).div(BigNumber(10).pow(18));
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console.log(`${name} balance is`, rmDecimalBN(checkBalance), `${netSymbol}`);
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}
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/** Display ERC20 account balance */
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async function printERC20Balance({ address, name, tokenAddress }) {
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let tokenDecimals, tokenBalance, tokenName, tokenSymbol;
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const erc20ContractJson = require('./build/contracts/ERC20Mock.json');
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erc20 = tokenAddress ? new web3.eth.Contract(erc20ContractJson.abi, tokenAddress) : erc20;
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if (!isTestRPC || !multiCall) {
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const tokenCall = await useMultiCall([[tokenAddress, erc20.methods.balanceOf(address).encodeABI()], [tokenAddress, erc20.methods.decimals().encodeABI()], [tokenAddress, erc20.methods.name().encodeABI()], [tokenAddress, erc20.methods.symbol().encodeABI()]]);
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tokenDecimals = parseInt(tokenCall[1]);
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tokenBalance = new BigNumber(tokenCall[0]).div(BigNumber(10).pow(tokenDecimals));
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tokenName = web3.eth.abi.decodeParameter('string', tokenCall[2]);
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tokenSymbol = web3.eth.abi.decodeParameter('string', tokenCall[3]);
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} else {
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tokenDecimals = await erc20.methods.decimals().call();
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tokenBalance = new BigNumber(await erc20.methods.balanceOf(address).call()).div(BigNumber(10).pow(tokenDecimals));
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tokenName = await erc20.methods.name().call();
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tokenSymbol = await erc20.methods.symbol().call();
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}
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console.log(`${name}`, tokenName, `Balance is`, rmDecimalBN(tokenBalance), tokenSymbol);
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}
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async function submitTransaction(signedTX) {
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console.log("Submitting transaction to the remote node");
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await web3.eth.sendSignedTransaction(signedTX)
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.on('transactionHash', function (txHash) {
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console.log(`View transaction on block explorer https://${getExplorerLink()}/tx/${txHash}`);
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})
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.on('error', function (e) {
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console.error('on transactionHash error', e.message);
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});
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}
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async function generateTransaction(to, encodedData, value = 0) {
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const nonce = await web3.eth.getTransactionCount(senderAccount);
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let gasPrice = await fetchGasPrice();
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let gasLimit;
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async function estimateGas() {
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const fetchedGas = await web3.eth.estimateGas({
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from : senderAccount,
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to : to,
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value : value,
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nonce : nonce,
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data : encodedData
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});
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const bumped = Math.floor(fetchedGas * 1.3);
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return web3.utils.toHex(bumped);
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}
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if (encodedData) {
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gasLimit = await estimateGas();
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} else {
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gasLimit = web3.utils.toHex(21000);
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}
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function txoptions() {
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// Generate EIP-1559 transaction
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if (netId == 1) {
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return {
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to : to,
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value : value,
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nonce : nonce,
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maxFeePerGas : gasPrice,
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maxPriorityFeePerGas : web3.utils.toHex(web3.utils.toWei('3', 'gwei')),
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gas : gasLimit,
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data : encodedData
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}
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} else if (netId == 5 || netId == 137 || netId == 43114) {
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return {
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to : to,
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value : value,
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nonce : nonce,
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maxFeePerGas : gasPrice,
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maxPriorityFeePerGas : gasPrice,
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gas : gasLimit,
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data : encodedData
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}
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} else {
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return {
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to : to,
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value : value,
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nonce : nonce,
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gasPrice : gasPrice,
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gas : gasLimit,
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data : encodedData
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}
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}
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}
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const tx = txoptions();
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const signed = await web3.eth.accounts.signTransaction(tx, PRIVATE_KEY);
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if (!doNotSubmitTx) {
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await submitTransaction(signed.rawTransaction);
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} else {
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console.log('\n=============Raw TX=================', '\n');
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console.log(`Please submit this raw tx to https://${getExplorerLink()}/pushTx, or otherwise broadcast with node cli.js broadcast command.`, `\n`);
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console.log(signed.rawTransaction, `\n`);
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console.log('=====================================', '\n');
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}
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}
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/**
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* Create deposit object from secret and nullifier
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*/
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function createDeposit({ nullifier, secret }) {
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const deposit = { nullifier, secret };
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deposit.preimage = Buffer.concat([deposit.nullifier.leInt2Buff(31), deposit.secret.leInt2Buff(31)]);
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deposit.commitment = pedersenHash(deposit.preimage);
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deposit.commitmentHex = toHex(deposit.commitment);
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deposit.nullifierHash = pedersenHash(deposit.nullifier.leInt2Buff(31));
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deposit.nullifierHex = toHex(deposit.nullifierHash);
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return deposit;
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}
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async function backupNote({ currency, amount, netId, note, noteString }) {
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try {
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await fs.writeFileSync(`./backup-tornado-${currency}-${amount}-${netId}-${note.slice(0, 10)}.txt`, noteString, 'utf8');
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console.log("Backed up deposit note as", `./backup-tornado-${currency}-${amount}-${netId}-${note.slice(0, 10)}.txt`);
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} catch (e) {
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throw new Error('Writing backup note failed:', e);
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}
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}
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async function backupInvoice({ currency, amount, netId, commitmentNote, invoiceString }) {
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try {
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await fs.writeFileSync(`./backup-tornadoInvoice-${currency}-${amount}-${netId}-${commitmentNote.slice(0, 10)}.txt`, invoiceString, 'utf8');
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console.log("Backed up invoice as", `./backup-tornadoInvoice-${currency}-${amount}-${netId}-${commitmentNote.slice(0, 10)}.txt`)
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} catch (e) {
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throw new Error('Writing backup invoice failed:', e)
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}
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}
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/**
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* create a deposit invoice.
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* @param currency Сurrency
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* @param amount Deposit amount
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*/
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async function createInvoice({ currency, amount, chainId }) {
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const deposit = createDeposit({
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nullifier: rbigint(31),
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secret: rbigint(31)
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});
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const note = toHex(deposit.preimage, 62);
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const noteString = `tornado-${currency}-${amount}-${chainId}-${note}`;
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console.log(`Your note: ${noteString}`);
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const commitmentNote = toHex(deposit.commitment);
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const invoiceString = `tornadoInvoice-${currency}-${amount}-${chainId}-${commitmentNote}`;
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console.log(`Your invoice for deposit: ${invoiceString}`);
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await backupNote({ currency, amount, netId: chainId, note, noteString });
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await backupInvoice({ currency, amount, netId: chainId, commitmentNote, invoiceString });
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return (noteString, invoiceString);
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}
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/**
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* Make a deposit
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* @param currency Сurrency
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* @param amount Deposit amount
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*/
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async function deposit({ currency, amount, commitmentNote }) {
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assert(senderAccount != null, 'Error! PRIVATE_KEY not found. Please provide PRIVATE_KEY in .env file if you deposit');
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let commitment;
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if (!commitmentNote) {
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console.log("Creating new random deposit note");
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const deposit = createDeposit({
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nullifier: rbigint(31),
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secret: rbigint(31)
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});
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const note = toHex(deposit.preimage, 62);
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const noteString = `tornado-${currency}-${amount}-${netId}-${note}`;
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console.log(`Your note: ${noteString}`);
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await backupNote({ currency, amount, netId, note, noteString });
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commitment = toHex(deposit.commitment);
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} else {
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console.log("Using supplied invoice for deposit");
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commitment = toHex(commitmentNote);
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}
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if (currency === netSymbol.toLowerCase()) {
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await printETHBalance({ address: tornadoContract._address, name: 'Tornado contract' });
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await printETHBalance({ address: senderAccount, name: 'Sender account' });
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const value = isTestRPC ? ETH_AMOUNT : fromDecimals({ amount, decimals: 18 });
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console.log('Submitting deposit transaction');
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await generateTransaction(contractAddress, tornado.methods.deposit(tornadoInstance, commitment, []).encodeABI(), value);
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await printETHBalance({ address: tornadoContract._address, name: 'Tornado contract' });
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await printETHBalance({ address: senderAccount, name: 'Sender account' });
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} else {
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// a token
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await printERC20Balance({ address: tornadoContract._address, name: 'Tornado contract' });
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await printERC20Balance({ address: senderAccount, name: 'Sender account' });
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const decimals = isTestRPC ? 18 : config.deployments[`netId${netId}`][currency].decimals;
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const tokenAmount = isTestRPC ? TOKEN_AMOUNT : fromDecimals({ amount, decimals });
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if (isTestRPC) {
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console.log('Minting some test tokens to deposit');
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await generateTransaction(erc20Address, erc20.methods.mint(senderAccount, tokenAmount).encodeABI());
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}
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const allowance = await erc20.methods.allowance(senderAccount, tornado._address).call({ from: senderAccount });
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console.log('Current allowance is', fromWei(allowance));
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if (toBN(allowance).lt(toBN(tokenAmount))) {
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console.log('Approving tokens for deposit');
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await generateTransaction(erc20Address, erc20.methods.approve(tornado._address, tokenAmount).encodeABI());
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}
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console.log('Submitting deposit transaction');
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await generateTransaction(contractAddress, tornado.methods.deposit(tornadoInstance, commitment, []).encodeABI());
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await printERC20Balance({ address: tornadoContract._address, name: 'Tornado contract' });
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await printERC20Balance({ address: senderAccount, name: 'Sender account' });
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}
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if(!commitmentNote) {
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return noteString;
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}
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}
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/**
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* Generate merkle tree for a deposit.
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* Download deposit events from the tornado, reconstructs merkle tree, finds our deposit leaf
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* in it and generates merkle proof
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* @param deposit Deposit object
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*/
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async function generateMerkleProof(deposit, currency, amount) {
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let leafIndex = -1;
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// Get all deposit events from smart contract and assemble merkle tree from them
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const cachedEvents = await fetchEvents({ type: 'deposit', currency, amount });
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const leaves = cachedEvents
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.sort((a, b) => a.leafIndex - b.leafIndex) // Sort events in chronological order
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.map((e) => {
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const index = toBN(e.leafIndex).toNumber();
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if (toBN(e.commitment).eq(toBN(deposit.commitmentHex))) {
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leafIndex = index;
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}
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return toBN(e.commitment).toString(10);
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});
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const tree = new merkleTree(MERKLE_TREE_HEIGHT, leaves);
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// Validate that our data is correct
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const root = tree.root();
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let isValidRoot, isSpent;
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if (!isTestRPC || !multiCall) {
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const callContract = await useMultiCall([[tornadoContract._address, tornadoContract.methods.isKnownRoot(toHex(root)).encodeABI()], [tornadoContract._address, tornadoContract.methods.isSpent(toHex(deposit.nullifierHash)).encodeABI()]])
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isValidRoot = web3.eth.abi.decodeParameter('bool', callContract[0]);
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isSpent = web3.eth.abi.decodeParameter('bool', callContract[1]);
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} else {
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isValidRoot = await tornadoContract.methods.isKnownRoot(toHex(root)).call();
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isSpent = await tornadoContract.methods.isSpent(toHex(deposit.nullifierHash)).call();
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}
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assert(isValidRoot === true, 'Merkle tree is corrupted');
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assert(isSpent === false, 'The note is already spent');
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assert(leafIndex >= 0, 'The deposit is not found in the tree');
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// Compute merkle proof of our commitment
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const { pathElements, pathIndices } = tree.path(leafIndex);
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return { root, pathElements, pathIndices };
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}
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/**
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* Generate SNARK proof for withdrawal
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* @param deposit Deposit object
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* @param recipient Funds recipient
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* @param relayer Relayer address
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* @param fee Relayer fee
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* @param refund Receive ether for exchanged tokens
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*/
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async function generateProof({ deposit, currency, amount, recipient, relayerAddress = 0, fee = 0, refund = 0 }) {
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// Compute merkle proof of our commitment
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const { root, pathElements, pathIndices } = await generateMerkleProof(deposit, currency, amount);
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// Prepare circuit input
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const input = {
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// Public snark inputs
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root: root,
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nullifierHash: deposit.nullifierHash,
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recipient: bigInt(recipient),
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relayer: bigInt(relayerAddress),
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fee: bigInt(fee),
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refund: bigInt(refund),
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// Private snark inputs
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nullifier: deposit.nullifier,
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secret: deposit.secret,
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pathElements: pathElements,
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pathIndices: pathIndices
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}
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console.log('Generating SNARK proof');
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console.time('Proof time');
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const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, proving_key);
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const { proof } = websnarkUtils.toSolidityInput(proofData);
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console.timeEnd('Proof time');
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const args = [
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toHex(input.root),
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toHex(input.nullifierHash),
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toHex(input.recipient, 20),
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toHex(input.relayer, 20),
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toHex(input.fee),
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toHex(input.refund)
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];
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return { proof, args };
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}
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/**
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* Do an ETH withdrawal
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* @param noteString Note to withdraw
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* @param recipient Recipient address
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*/
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async function withdraw({ deposit, currency, amount, recipient, relayerURL, refund = '0' }) {
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let options = {};
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if (currency === netSymbol.toLowerCase() && refund !== '0') {
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throw new Error('The ETH purchase is supposted to be 0 for ETH withdrawals');
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}
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refund = toWei(refund);
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if (relayerURL) {
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if (relayerURL.endsWith('.eth')) {
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throw new Error('ENS name resolving is not supported. Please provide DNS name of the relayer. See instuctions in README.md');
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}
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if (torPort) {
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options = { httpsAgent: new SocksProxyAgent('socks5h://127.0.0.1:' + torPort), headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0' } }
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}
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const relayerStatus = await axios.get(relayerURL + '/status', options);
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const { rewardAccount, netId, ethPrices, tornadoServiceFee } = relayerStatus.data
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assert(netId === (await web3.eth.net.getId()) || netId === '*', 'This relay is for different network');
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console.log('Relay address:', rewardAccount);
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|
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const gasPrice = await fetchGasPrice();
|
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|
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const decimals = isTestRPC ? 18 : config.deployments[`netId${netId}`][currency].decimals
|
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const fee = calculateFee({
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currency,
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gasPrice,
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amount,
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refund,
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ethPrices,
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relayerServiceFee: tornadoServiceFee,
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decimals
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});
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if (fee.gt(fromDecimals({ amount, decimals }))) {
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throw new Error('Too high refund');
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};
|
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const { proof, args } = await generateProof({ deposit, currency, amount, recipient, relayerAddress: rewardAccount, fee, refund });
|
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console.log('Sending withdraw transaction through relay');
|
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try {
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const response = await axios.post(relayerURL + '/v1/tornadoWithdraw', {
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contract: tornadoInstance,
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proof,
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args
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}, options)
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const { id } = response.data;
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const result = await getStatus(id, relayerURL, options);
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console.log('STATUS', result);
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} catch (e) {
|
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if (e.response) {
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console.error(e.response.data.error);
|
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} else {
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console.error(e.message);
|
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}
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}
|
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} else {
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// using private key
|
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|
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// check if the address of recepient matches with the account of provided private key from environment to prevent accidental use of deposit address for withdrawal transaction.
|
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assert(recipient.toLowerCase() == senderAccount.toLowerCase(), 'Withdrawal recepient mismatches with the account of provided private key from environment file');
|
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const checkBalance = await web3.eth.getBalance(senderAccount);
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assert(checkBalance !== 0, 'You have 0 balance, make sure to fund account by withdrawing from tornado using relayer first');
|
||
|
||
const { proof, args } = await generateProof({ deposit, currency, amount, recipient, refund });
|
||
|
||
console.log('Submitting withdraw transaction');
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await generateTransaction(contractAddress, tornado.methods.withdraw(tornadoInstance, proof, ...args).encodeABI());
|
||
}
|
||
if (currency === netSymbol.toLowerCase()) {
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await printETHBalance({ address: recipient, name: 'Recipient' });
|
||
} else {
|
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await printERC20Balance({ address: recipient, name: 'Recipient' });
|
||
}
|
||
console.log('Done withdrawal from Tornado Cash');
|
||
}
|
||
|
||
/**
|
||
* Do an ETH / ERC20 send
|
||
* @param address Recepient address
|
||
* @param amount Amount to send
|
||
* @param tokenAddress ERC20 token address
|
||
*/
|
||
async function send({ address, amount, tokenAddress }) {
|
||
// using private key
|
||
assert(senderAccount != null, 'Error! PRIVATE_KEY not found. Please provide PRIVATE_KEY in .env file if you send');
|
||
if (tokenAddress) {
|
||
const erc20ContractJson = require('./build/contracts/ERC20Mock.json');
|
||
erc20 = new web3.eth.Contract(erc20ContractJson.abi, tokenAddress);
|
||
let tokenBalance, tokenDecimals, tokenSymbol;
|
||
if (!isTestRPC || !multiCall) {
|
||
const callToken = await useMultiCall([[tokenAddress, erc20.methods.balanceOf(senderAccount).encodeABI()], [tokenAddress, erc20.methods.decimals().encodeABI()], [tokenAddress, erc20.methods.symbol().encodeABI()]]);
|
||
tokenBalance = new BigNumber(callToken[0]);
|
||
tokenDecimals = parseInt(callToken[1]);
|
||
tokenSymbol = web3.eth.abi.decodeParameter('string', callToken[2]);
|
||
} else {
|
||
tokenBalance = new BigNumber(await erc20.methods.balanceOf(senderAccount).call());
|
||
tokenDecimals = await erc20.methods.decimals().call();
|
||
tokenSymbol = await erc20.methods.symbol().call();
|
||
}
|
||
const toSend = new BigNumber(amount).times(BigNumber(10).pow(tokenDecimals));
|
||
if (tokenBalance.lt(toSend)) {
|
||
console.error("You have", rmDecimalBN(tokenBalance.div(BigNumber(10).pow(tokenDecimals))), tokenSymbol, ", you can't send more than you have");
|
||
process.exit(1);
|
||
}
|
||
const encodeTransfer = erc20.methods.transfer(address, toSend).encodeABI();
|
||
await generateTransaction(tokenAddress, encodeTransfer);
|
||
console.log('Sent', amount, tokenSymbol, 'to', address);
|
||
} else {
|
||
const balance = new BigNumber(await web3.eth.getBalance(senderAccount));
|
||
assert(balance.toNumber() !== 0, "You have 0 balance, can't send transaction");
|
||
if (amount) {
|
||
toSend = new BigNumber(amount).times(BigNumber(10).pow(18));
|
||
if (balance.lt(toSend)) {
|
||
console.error("You have", rmDecimalBN(balance.div(BigNumber(10).pow(18))), netSymbol + ", you can't send more than you have.");
|
||
process.exit(1);
|
||
}
|
||
} else {
|
||
console.log('Amount not defined, sending all available amounts');
|
||
const gasPrice = new BigNumber(await fetchGasPrice());
|
||
const gasLimit = new BigNumber(21000);
|
||
if (netId == 1) {
|
||
const priorityFee = new BigNumber(await gasPrices(3));
|
||
toSend = balance.minus(gasLimit.times(gasPrice.plus(priorityFee)));
|
||
} else {
|
||
toSend = balance.minus(gasLimit.times(gasPrice));
|
||
}
|
||
}
|
||
await generateTransaction(address, null, toSend);
|
||
console.log('Sent', rmDecimalBN(toSend.div(BigNumber(10).pow(18))), netSymbol, 'to', address);
|
||
}
|
||
}
|
||
|
||
function getStatus(id, relayerURL, options) {
|
||
return new Promise((resolve) => {
|
||
async function getRelayerStatus() {
|
||
const responseStatus = await axios.get(relayerURL + '/v1/jobs/' + id, options);
|
||
|
||
if (responseStatus.status === 200) {
|
||
const { txHash, status, confirmations, failedReason } = responseStatus.data
|
||
|
||
console.log(`Current job status ${status}, confirmations: ${confirmations}`);
|
||
|
||
if (status === 'FAILED') {
|
||
throw new Error(status + ' failed reason:' + failedReason);
|
||
}
|
||
|
||
if (status === 'CONFIRMED') {
|
||
const receipt = await waitForTxReceipt({ txHash });
|
||
console.log(
|
||
`Transaction submitted through the relay. View transaction on block explorer https://${getExplorerLink()}/tx/${txHash}`
|
||
);
|
||
console.log('Transaction mined in block', receipt.blockNumber);
|
||
resolve(status);
|
||
}
|
||
}
|
||
|
||
setTimeout(() => {
|
||
getRelayerStatus(id, relayerURL);
|
||
}, 3000)
|
||
}
|
||
|
||
getRelayerStatus();
|
||
})
|
||
}
|
||
|
||
function capitalizeFirstLetter(string) {
|
||
return string.charAt(0).toUpperCase() + string.slice(1);
|
||
}
|
||
|
||
function fromDecimals({ amount, decimals }) {
|
||
amount = amount.toString();
|
||
let ether = amount.toString();
|
||
const base = new BN('10').pow(new BN(decimals));
|
||
const baseLength = base.toString(10).length - 1 || 1;
|
||
|
||
const negative = ether.substring(0, 1) === '-';
|
||
if (negative) {
|
||
ether = ether.substring(1);
|
||
}
|
||
|
||
if (ether === '.') {
|
||
throw new Error('[ethjs-unit] while converting number ' + amount + ' to wei, invalid value');
|
||
}
|
||
|
||
// Split it into a whole and fractional part
|
||
const comps = ether.split('.');
|
||
if (comps.length > 2) {
|
||
throw new Error('[ethjs-unit] while converting number ' + amount + ' to wei, too many decimal points');
|
||
}
|
||
|
||
let whole = comps[0];
|
||
let fraction = comps[1];
|
||
|
||
if (!whole) {
|
||
whole = '0';
|
||
}
|
||
if (!fraction) {
|
||
fraction = '0';
|
||
}
|
||
if (fraction.length > baseLength) {
|
||
throw new Error('[ethjs-unit] while converting number ' + amount + ' to wei, too many decimal places');
|
||
}
|
||
|
||
while (fraction.length < baseLength) {
|
||
fraction += '0';
|
||
}
|
||
|
||
whole = new BN(whole);
|
||
fraction = new BN(fraction);
|
||
let wei = whole.mul(base).add(fraction);
|
||
|
||
if (negative) {
|
||
wei = wei.mul(negative);
|
||
}
|
||
|
||
return new BN(wei.toString(10), 10);
|
||
}
|
||
|
||
function toDecimals(value, decimals, fixed) {
|
||
const zero = new BN(0);
|
||
const negative1 = new BN(-1);
|
||
decimals = decimals || 18;
|
||
fixed = fixed || 7;
|
||
|
||
value = new BN(value);
|
||
const negative = value.lt(zero);
|
||
const base = new BN('10').pow(new BN(decimals));
|
||
const baseLength = base.toString(10).length - 1 || 1;
|
||
|
||
if (negative) {
|
||
value = value.mul(negative1);
|
||
}
|
||
|
||
let fraction = value.mod(base).toString(10);
|
||
while (fraction.length < baseLength) {
|
||
fraction = `0${fraction}`;
|
||
}
|
||
fraction = fraction.match(/^([0-9]*[1-9]|0)(0*)/)[1];
|
||
|
||
const whole = value.div(base).toString(10);
|
||
value = `${whole}${fraction === '0' ? '' : `.${fraction}`}`;
|
||
|
||
if (negative) {
|
||
value = `-${value}`;
|
||
}
|
||
|
||
if (fixed) {
|
||
value = value.slice(0, fixed);
|
||
}
|
||
|
||
return value;
|
||
}
|
||
|
||
// List fetched from https://github.com/ethereum-lists/chains/blob/master/_data/chains
|
||
function getExplorerLink() {
|
||
switch (netId) {
|
||
case 56:
|
||
return 'bscscan.com';
|
||
case 100:
|
||
return 'blockscout.com/poa/xdai';
|
||
case 137:
|
||
return 'polygonscan.com';
|
||
case 42161:
|
||
return 'arbiscan.io';
|
||
case 43114:
|
||
return 'snowtrace.io';
|
||
case 5:
|
||
return 'goerli.etherscan.io';
|
||
case 42:
|
||
return 'kovan.etherscan.io';
|
||
case 10:
|
||
return 'optimistic.etherscan.io';
|
||
default:
|
||
return 'etherscan.io';
|
||
}
|
||
}
|
||
|
||
// List fetched from https://github.com/trustwallet/assets/tree/master/blockchains
|
||
function getCurrentNetworkName() {
|
||
switch (netId) {
|
||
case 1:
|
||
return 'Ethereum';
|
||
case 56:
|
||
return 'BinanceSmartChain';
|
||
case 100:
|
||
return 'GnosisChain';
|
||
case 137:
|
||
return 'Polygon';
|
||
case 42161:
|
||
return 'Arbitrum';
|
||
case 43114:
|
||
return 'Avalanche';
|
||
case 5:
|
||
return 'Goerli';
|
||
case 42:
|
||
return 'Kovan';
|
||
case 10:
|
||
return 'Optimism';
|
||
default:
|
||
return 'testRPC';
|
||
}
|
||
}
|
||
|
||
function getCurrentNetworkSymbol() {
|
||
switch (netId) {
|
||
case 56:
|
||
return 'BNB';
|
||
case 100:
|
||
return 'xDAI';
|
||
case 137:
|
||
return 'MATIC';
|
||
case 43114:
|
||
return 'AVAX';
|
||
default:
|
||
return 'ETH';
|
||
}
|
||
}
|
||
|
||
function gasPricesETH(value = 80) {
|
||
const tenPercent = (Number(value) * 5) / 100;
|
||
const max = Math.max(tenPercent, 3);
|
||
const bumped = Math.floor(Number(value) + max);
|
||
return toHex(toWei(bumped.toString(), 'gwei'));
|
||
}
|
||
|
||
function gasPrices(value = 5) {
|
||
return toHex(toWei(value.toString(), 'gwei'));
|
||
}
|
||
|
||
async function fetchGasPrice() {
|
||
try {
|
||
const options = {
|
||
chainId: netId
|
||
}
|
||
// Bump fees for Ethereum network
|
||
if (netId == 1) {
|
||
const oracle = new GasPriceOracle(options);
|
||
const gas = await oracle.gasPrices();
|
||
return gasPricesETH(gas.instant);
|
||
} else if (netId == 5 || isTestRPC) {
|
||
const web3GasPrice = await web3.eth.getGasPrice();
|
||
return web3GasPrice;
|
||
} else {
|
||
const oracle = new GasPriceOracle(options);
|
||
const gas = await oracle.gasPrices();
|
||
return gasPrices(gas.instant);
|
||
}
|
||
} catch (err) {
|
||
throw new Error(`Method fetchGasPrice has error ${err.message}`);
|
||
}
|
||
}
|
||
|
||
function calculateFee({ currency, gasPrice, amount, refund, ethPrices, relayerServiceFee, decimals }) {
|
||
const decimalsPoint =
|
||
Math.floor(relayerServiceFee) === Number(relayerServiceFee) ? 0 : relayerServiceFee.toString().split('.')[1].length;
|
||
const roundDecimal = 10 ** decimalsPoint;
|
||
const total = toBN(fromDecimals({ amount, decimals }));
|
||
const feePercent = total.mul(toBN(relayerServiceFee * roundDecimal)).div(toBN(roundDecimal * 100));
|
||
const expense = toBN(gasPrice).mul(toBN(5e5));
|
||
let desiredFee;
|
||
switch (currency) {
|
||
case netSymbol.toLowerCase(): {
|
||
desiredFee = expense.add(feePercent);
|
||
break;
|
||
}
|
||
default: {
|
||
desiredFee = expense
|
||
.add(toBN(refund))
|
||
.mul(toBN(10 ** decimals))
|
||
.div(toBN(ethPrices[currency]));
|
||
desiredFee = desiredFee.add(feePercent);
|
||
break;
|
||
}
|
||
}
|
||
return desiredFee;
|
||
}
|
||
|
||
/**
|
||
* Waits for transaction to be mined
|
||
* @param txHash Hash of transaction
|
||
* @param attempts
|
||
* @param delay
|
||
*/
|
||
function waitForTxReceipt({ txHash, attempts = 60, delay = 1000 }) {
|
||
return new Promise((resolve, reject) => {
|
||
const checkForTx = async (txHash, retryAttempt = 0) => {
|
||
const result = await web3.eth.getTransactionReceipt(txHash);
|
||
if (!result || !result.blockNumber) {
|
||
if (retryAttempt <= attempts) {
|
||
setTimeout(() => checkForTx(txHash, retryAttempt + 1), delay);
|
||
} else {
|
||
reject(new Error('tx was not mined'));
|
||
}
|
||
} else {
|
||
resolve(result);
|
||
}
|
||
}
|
||
checkForTx(txHash);
|
||
})
|
||
}
|
||
|
||
function initJson(file) {
|
||
return new Promise((resolve, reject) => {
|
||
fs.readFile(file, 'utf8', (error, data) => {
|
||
if (error) {
|
||
resolve([]);
|
||
}
|
||
try {
|
||
resolve(JSON.parse(data));
|
||
} catch (error) {
|
||
resolve([]);
|
||
}
|
||
});
|
||
});
|
||
};
|
||
|
||
function loadCachedEvents({ type, currency, amount }) {
|
||
try {
|
||
const module = require(`./cache/${netName.toLowerCase()}/${type}s_${currency}_${amount}.json`);
|
||
|
||
if (module) {
|
||
const events = module;
|
||
|
||
return {
|
||
events,
|
||
lastBlock: events[events.length - 1].blockNumber
|
||
}
|
||
}
|
||
} catch (err) {
|
||
console.log("Error fetching cached files, syncing from block", deployedBlockNumber);
|
||
return {
|
||
events: [],
|
||
lastBlock: deployedBlockNumber,
|
||
}
|
||
}
|
||
}
|
||
|
||
async function fetchEvents({ type, currency, amount }) {
|
||
if (type === "withdraw") {
|
||
type = "withdrawal";
|
||
}
|
||
|
||
const cachedEvents = loadCachedEvents({ type, currency, amount });
|
||
const startBlock = cachedEvents.lastBlock + 1;
|
||
|
||
console.log("Loaded cached",amount,currency.toUpperCase(),type,"events for",startBlock,"block");
|
||
console.log("Fetching",amount,currency.toUpperCase(),type,"events for",netName,"network");
|
||
|
||
async function syncEvents() {
|
||
try {
|
||
let targetBlock = await web3.eth.getBlockNumber();
|
||
let chunks = 1000;
|
||
console.log("Querying latest events from RPC");
|
||
|
||
for (let i = startBlock; i < targetBlock; i += chunks) {
|
||
let fetchedEvents = [];
|
||
|
||
function mapDepositEvents() {
|
||
fetchedEvents = fetchedEvents.map(({ blockNumber, transactionHash, returnValues }) => {
|
||
const { commitment, leafIndex, timestamp } = returnValues;
|
||
return {
|
||
blockNumber,
|
||
transactionHash,
|
||
commitment,
|
||
leafIndex: Number(leafIndex),
|
||
timestamp
|
||
}
|
||
});
|
||
}
|
||
|
||
function mapWithdrawEvents() {
|
||
fetchedEvents = fetchedEvents.map(({ blockNumber, transactionHash, returnValues }) => {
|
||
const { nullifierHash, to, fee } = returnValues;
|
||
return {
|
||
blockNumber,
|
||
transactionHash,
|
||
nullifierHash,
|
||
to,
|
||
fee
|
||
}
|
||
});
|
||
}
|
||
|
||
function mapLatestEvents() {
|
||
if (type === "deposit"){
|
||
mapDepositEvents();
|
||
} else {
|
||
mapWithdrawEvents();
|
||
}
|
||
}
|
||
|
||
async function fetchWeb3Events(i) {
|
||
let j;
|
||
if (i + chunks - 1 > targetBlock) {
|
||
j = targetBlock;
|
||
} else {
|
||
j = i + chunks - 1;
|
||
}
|
||
await tornadoContract.getPastEvents(capitalizeFirstLetter(type), {
|
||
fromBlock: i,
|
||
toBlock: j,
|
||
}).then(r => { fetchedEvents = fetchedEvents.concat(r); console.log("Fetched", amount, currency.toUpperCase(), type, "events to block:", j) }, err => { console.error(i + " failed fetching", type, "events from node", err); process.exit(1); }).catch(console.log);
|
||
|
||
if (type === "deposit"){
|
||
mapDepositEvents();
|
||
} else {
|
||
mapWithdrawEvents();
|
||
}
|
||
}
|
||
|
||
async function updateCache() {
|
||
try {
|
||
const fileName = `./cache/${netName.toLowerCase()}/${type}s_${currency}_${amount}.json`;
|
||
const localEvents = await initJson(fileName);
|
||
const events = localEvents.concat(fetchedEvents);
|
||
await fs.writeFileSync(fileName, JSON.stringify(events, null, 2), 'utf8');
|
||
} catch (error) {
|
||
throw new Error('Writing cache file failed:',error);
|
||
}
|
||
}
|
||
await fetchWeb3Events(i);
|
||
await updateCache();
|
||
}
|
||
} catch (error) {
|
||
throw new Error("Error while updating cache");
|
||
process.exit(1);
|
||
}
|
||
}
|
||
|
||
async function syncGraphEvents() {
|
||
let options = {};
|
||
if (torPort) {
|
||
options = { httpsAgent: new SocksProxyAgent('socks5h://127.0.0.1:' + torPort), headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0' } };
|
||
}
|
||
|
||
async function queryLatestTimestamp() {
|
||
try {
|
||
const variables = {
|
||
currency: currency.toString(),
|
||
amount: amount.toString()
|
||
}
|
||
if (type === "deposit") {
|
||
const query = {
|
||
query: `
|
||
query($currency: String, $amount: String){
|
||
deposits(first: 1, orderBy: timestamp, orderDirection: desc, where: {currency: $currency, amount: $amount}) {
|
||
timestamp
|
||
}
|
||
}
|
||
`,
|
||
variables
|
||
}
|
||
const querySubgraph = await axios.post(subgraph, query, options);
|
||
const queryResult = querySubgraph.data.data.deposits;
|
||
const result = queryResult[0].timestamp;
|
||
return Number(result);
|
||
} else {
|
||
const query = {
|
||
query: `
|
||
query($currency: String, $amount: String){
|
||
withdrawals(first: 1, orderBy: timestamp, orderDirection: desc, where: {currency: $currency, amount: $amount}) {
|
||
timestamp
|
||
}
|
||
}
|
||
`,
|
||
variables
|
||
}
|
||
const querySubgraph = await axios.post(subgraph, query, options);
|
||
const queryResult = querySubgraph.data.data.withdrawals;
|
||
const result = queryResult[0].timestamp;
|
||
return Number(result);
|
||
}
|
||
} catch (error) {
|
||
console.error("Failed to fetch latest event from thegraph");
|
||
}
|
||
}
|
||
|
||
async function queryFromGraph(timestamp) {
|
||
try {
|
||
const variables = {
|
||
currency: currency.toString(),
|
||
amount: amount.toString(),
|
||
timestamp: timestamp
|
||
}
|
||
if (type === "deposit") {
|
||
const query = {
|
||
query: `
|
||
query($currency: String, $amount: String, $timestamp: Int){
|
||
deposits(orderBy: timestamp, first: 1000, where: {currency: $currency, amount: $amount, timestamp_gt: $timestamp}) {
|
||
blockNumber
|
||
transactionHash
|
||
commitment
|
||
index
|
||
timestamp
|
||
}
|
||
}
|
||
`,
|
||
variables
|
||
}
|
||
const querySubgraph = await axios.post(subgraph, query, options);
|
||
const queryResult = querySubgraph.data.data.deposits;
|
||
const mapResult = queryResult.map(({ blockNumber, transactionHash, commitment, index, timestamp }) => {
|
||
return {
|
||
blockNumber: Number(blockNumber),
|
||
transactionHash,
|
||
commitment,
|
||
leafIndex: Number(index),
|
||
timestamp
|
||
}
|
||
});
|
||
return mapResult;
|
||
} else {
|
||
const query = {
|
||
query: `
|
||
query($currency: String, $amount: String, $timestamp: Int){
|
||
withdrawals(orderBy: timestamp, first: 1000, where: {currency: $currency, amount: $amount, timestamp_gt: $timestamp}) {
|
||
blockNumber
|
||
transactionHash
|
||
nullifier
|
||
to
|
||
fee
|
||
}
|
||
}
|
||
`,
|
||
variables
|
||
}
|
||
const querySubgraph = await axios.post(subgraph, query, options);
|
||
const queryResult = querySubgraph.data.data.withdrawals;
|
||
const mapResult = queryResult.map(({ blockNumber, transactionHash, nullifier, to, fee }) => {
|
||
return {
|
||
blockNumber: Number(blockNumber),
|
||
transactionHash,
|
||
nullifierHash: nullifier,
|
||
to,
|
||
fee
|
||
}
|
||
});
|
||
return mapResult;
|
||
}
|
||
} catch (error) {
|
||
console.error(error);
|
||
}
|
||
}
|
||
|
||
async function updateCache(fetchedEvents) {
|
||
try {
|
||
const fileName = `./cache/${netName.toLowerCase()}/${type}s_${currency}_${amount}.json`;
|
||
const localEvents = await initJson(fileName);
|
||
const events = localEvents.concat(fetchedEvents);
|
||
await fs.writeFileSync(fileName, JSON.stringify(events, null, 2), 'utf8');
|
||
} catch (error) {
|
||
throw new Error('Writing cache file failed:',error);
|
||
}
|
||
}
|
||
|
||
async function fetchGraphEvents() {
|
||
console.log("Querying latest events from TheGraph");
|
||
const latestTimestamp = await queryLatestTimestamp();
|
||
if (latestTimestamp) {
|
||
const getCachedBlock = await web3.eth.getBlock(startBlock);
|
||
const cachedTimestamp = getCachedBlock.timestamp;
|
||
for (let i = cachedTimestamp; i < latestTimestamp;) {
|
||
const result = await queryFromGraph(i);
|
||
if (Object.keys(result).length === 0) {
|
||
i = latestTimestamp;
|
||
} else {
|
||
const resultBlock = result[result.length - 1].blockNumber;
|
||
const getResultBlock = await web3.eth.getBlock(resultBlock);
|
||
const resultTimestamp = getResultBlock.timestamp;
|
||
await updateCache(result);
|
||
i = resultTimestamp;
|
||
console.log("Fetched", amount, currency.toUpperCase(), type, "events to block:", Number(resultBlock));
|
||
}
|
||
}
|
||
} else {
|
||
console.log("Fallback to web3 events");
|
||
await syncEvents();
|
||
}
|
||
}
|
||
await fetchGraphEvents();
|
||
}
|
||
if (!privateRpc || !subgraph || !isTestRPC) {
|
||
await syncGraphEvents();
|
||
} else {
|
||
await syncEvents();
|
||
}
|
||
|
||
async function loadUpdatedEvents() {
|
||
const fileName = `./cache/${netName.toLowerCase()}/${type}s_${currency}_${amount}.json`;
|
||
const updatedEvents = await initJson(fileName);
|
||
const updatedBlock = updatedEvents[updatedEvents.length - 1].blockNumber;
|
||
console.log("Cache updated for Tornado",type,amount,currency,"instance to block",updatedBlock,"successfully");
|
||
console.log(`Total ${type}s:`, updatedEvents.length);
|
||
return updatedEvents;
|
||
}
|
||
const events = await loadUpdatedEvents();
|
||
return events;
|
||
}
|
||
|
||
/**
|
||
* Parses Tornado.cash note
|
||
* @param noteString the note
|
||
*/
|
||
function parseNote(noteString) {
|
||
const noteRegex = /tornado-(?<currency>\w+)-(?<amount>[\d.]+)-(?<netId>\d+)-0x(?<note>[0-9a-fA-F]{124})/g
|
||
const match = noteRegex.exec(noteString);
|
||
if (!match) {
|
||
throw new Error('The note has invalid format');
|
||
}
|
||
|
||
const buf = Buffer.from(match.groups.note, 'hex');
|
||
const nullifier = bigInt.leBuff2int(buf.slice(0, 31));
|
||
const secret = bigInt.leBuff2int(buf.slice(31, 62));
|
||
const deposit = createDeposit({ nullifier, secret });
|
||
const netId = Number(match.groups.netId);
|
||
|
||
return {
|
||
currency: match.groups.currency,
|
||
amount: match.groups.amount,
|
||
netId,
|
||
deposit
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Parses Tornado.cash deposit invoice
|
||
* @param invoiceString the note
|
||
*/
|
||
function parseInvoice(invoiceString) {
|
||
const noteRegex = /tornadoInvoice-(?<currency>\w+)-(?<amount>[\d.]+)-(?<netId>\d+)-0x(?<commitmentNote>[0-9a-fA-F]{64})/g
|
||
const match = noteRegex.exec(invoiceString)
|
||
if (!match) {
|
||
throw new Error('The note has invalid format')
|
||
}
|
||
|
||
const netId = Number(match.groups.netId)
|
||
const buf = Buffer.from(match.groups.commitmentNote, 'hex')
|
||
const commitmentNote = toHex(buf.slice(0, 32))
|
||
|
||
return {
|
||
currency: match.groups.currency,
|
||
amount: match.groups.amount,
|
||
netId,
|
||
commitmentNote
|
||
}
|
||
}
|
||
|
||
async function loadDepositData({ amount, currency, deposit }) {
|
||
try {
|
||
const cachedEvents = await fetchEvents({ type: 'deposit', currency, amount });
|
||
const eventWhenHappened = await cachedEvents.filter(function (event) {
|
||
return event.commitment === deposit.commitmentHex;
|
||
})[0];
|
||
|
||
if (eventWhenHappened.length === 0) {
|
||
throw new Error('There is no related deposit, the note is invalid');
|
||
}
|
||
|
||
const timestamp = eventWhenHappened.timestamp;
|
||
const txHash = eventWhenHappened.transactionHash;
|
||
const isSpent = await tornadoContract.methods.isSpent(deposit.nullifierHex).call();
|
||
const receipt = await web3.eth.getTransactionReceipt(txHash);
|
||
|
||
return {
|
||
timestamp,
|
||
txHash,
|
||
isSpent,
|
||
from: receipt.from,
|
||
commitment: deposit.commitmentHex
|
||
}
|
||
} catch (e) {
|
||
console.error('loadDepositData', e);
|
||
}
|
||
return {}
|
||
}
|
||
async function loadWithdrawalData({ amount, currency, deposit }) {
|
||
try {
|
||
const cachedEvents = await fetchEvents({ type: 'withdrawal', currency, amount });
|
||
|
||
const withdrawEvent = cachedEvents.filter((event) => {
|
||
return event.nullifierHash === deposit.nullifierHex
|
||
})[0];
|
||
|
||
const fee = withdrawEvent.fee;
|
||
const decimals = config.deployments[`netId${netId}`][currency].decimals;
|
||
const withdrawalAmount = toBN(fromDecimals({ amount, decimals })).sub(toBN(fee));
|
||
const { timestamp } = await web3.eth.getBlock(withdrawEvent.blockNumber);
|
||
return {
|
||
amount: toDecimals(withdrawalAmount, decimals, 9),
|
||
txHash: withdrawEvent.transactionHash,
|
||
to: withdrawEvent.to,
|
||
timestamp,
|
||
nullifier: deposit.nullifierHex,
|
||
fee: toDecimals(fee, decimals, 9)
|
||
}
|
||
} catch (e) {
|
||
console.error('loadWithdrawalData', e);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Init web3, contracts, and snark
|
||
*/
|
||
async function init({ rpc, noteNetId, currency = 'dai', amount = '100', balanceCheck, localMode }) {
|
||
let contractJson, instanceJson, erc20ContractJson, erc20tornadoJson, tornadoAddress, tokenAddress;
|
||
// TODO do we need this? should it work in browser really?
|
||
if (inBrowser) {
|
||
// Initialize using injected web3 (Metamask)
|
||
// To assemble web version run `npm run browserify`
|
||
web3 = new Web3(window.web3.currentProvider, null, {
|
||
transactionConfirmationBlocks: 1
|
||
});
|
||
contractJson = await (await fetch('build/contracts/TornadoProxy.abi.json')).json();
|
||
instanceJson = await (await fetch('build/contracts/Instance.abi.json')).json();
|
||
circuit = await (await fetch('build/circuits/tornado.json')).json();
|
||
proving_key = await (await fetch('build/circuits/tornadoProvingKey.bin')).arrayBuffer();
|
||
MERKLE_TREE_HEIGHT = 20;
|
||
ETH_AMOUNT = 1e18;
|
||
TOKEN_AMOUNT = 1e19;
|
||
senderAccount = (await web3.eth.getAccounts())[0];
|
||
} else {
|
||
let ipOptions = {};
|
||
if (torPort && rpc.includes("https")) {
|
||
console.log("Using tor network");
|
||
web3Options = { agent: { https: new SocksProxyAgent('socks5h://127.0.0.1:' + torPort) }, timeout: 60000 };
|
||
// Use forked web3-providers-http from local file to modify user-agent header value which improves privacy.
|
||
web3 = new Web3(new Web3HttpProvider(rpc, web3Options), null, { transactionConfirmationBlocks: 1 });
|
||
ipOptions = { httpsAgent: new SocksProxyAgent('socks5h://127.0.0.1:' + torPort), headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0' } };
|
||
} else if (torPort && rpc.includes("http")) {
|
||
console.log("Using tor network");
|
||
web3Options = { agent: { http: new SocksProxyAgent('socks5h://127.0.0.1:' + torPort) }, timeout: 60000 };
|
||
// Use forked web3-providers-http from local file to modify user-agent header value which improves privacy.
|
||
web3 = new Web3(new Web3HttpProvider(rpc, web3Options), null, { transactionConfirmationBlocks: 1 });
|
||
ipOptions = { httpsAgent: new SocksProxyAgent('socks5h://127.0.0.1:' + torPort), headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0' } };
|
||
} else if (rpc.includes("ipc")) {
|
||
console.log("Using ipc connection");
|
||
web3 = new Web3(new Web3.providers.IpcProvider(rpc, net), null, { transactionConfirmationBlocks: 1 });
|
||
} else if (rpc.includes("ws") || rpc.includes("wss")) {
|
||
console.log("Using websocket connection (Note: Tor is not supported for Websocket providers)");
|
||
web3Options = { clientConfig: { keepalive: true, keepaliveInterval: -1 }, reconnect: { auto: true, delay: 1000, maxAttempts: 10, onTimeout: false } };
|
||
web3 = new Web3(new Web3.providers.WebsocketProvider(rpc, web3Options), net, { transactionConfirmationBlocks: 1 });
|
||
} else {
|
||
console.log("Connecting to remote node");
|
||
web3 = new Web3(rpc, null, { transactionConfirmationBlocks: 1 });
|
||
}
|
||
const rpcHost = new URL(rpc).hostname;
|
||
const isIpPrivate = is_ip_private(rpcHost);
|
||
if (!isIpPrivate && !rpc.includes("localhost")) {
|
||
try {
|
||
const fetchRemoteIP = await axios.get('https://ip.tornado.cash', ipOptions);
|
||
const { country, ip } = fetchRemoteIP.data;
|
||
console.log('Your remote IP address is', ip, 'from', country + '.');
|
||
} catch (error) {
|
||
console.error('Could not fetch remote IP from ip.tornado.cash, use VPN if the problem repeats.');
|
||
}
|
||
} else if (isIpPrivate || rpc.includes("localhost")) {
|
||
console.log('Local RPC detected');
|
||
privateRpc = true;
|
||
}
|
||
contractJson = require('./build/contracts/TornadoProxy.abi.json');
|
||
instanceJson = require('./build/contracts/Instance.abi.json');
|
||
circuit = require('./build/circuits/tornado.json');
|
||
proving_key = fs.readFileSync('build/circuits/tornadoProvingKey.bin').buffer;
|
||
MERKLE_TREE_HEIGHT = process.env.MERKLE_TREE_HEIGHT || 20;
|
||
ETH_AMOUNT = process.env.ETH_AMOUNT;
|
||
TOKEN_AMOUNT = process.env.TOKEN_AMOUNT;
|
||
const privKey = process.env.PRIVATE_KEY;
|
||
if (privKey) {
|
||
if (privKey.includes("0x")) {
|
||
PRIVATE_KEY = process.env.PRIVATE_KEY.substring(2);
|
||
} else {
|
||
PRIVATE_KEY = process.env.PRIVATE_KEY;
|
||
}
|
||
}
|
||
if (PRIVATE_KEY) {
|
||
const account = web3.eth.accounts.privateKeyToAccount('0x' + PRIVATE_KEY);
|
||
web3.eth.accounts.wallet.add('0x' + PRIVATE_KEY);
|
||
web3.eth.defaultAccount = account.address;
|
||
senderAccount = account.address;
|
||
}
|
||
erc20ContractJson = require('./build/contracts/ERC20Mock.json');
|
||
erc20tornadoJson = require('./build/contracts/ERC20Tornado.json');
|
||
}
|
||
// groth16 initialises a lot of Promises that will never be resolved, that's why we need to use process.exit to terminate the CLI
|
||
groth16 = await buildGroth16();
|
||
netId = await web3.eth.net.getId();
|
||
netName = getCurrentNetworkName();
|
||
netSymbol = getCurrentNetworkSymbol();
|
||
if (noteNetId && Number(noteNetId) !== netId) {
|
||
throw new Error('This note is for a different network. Specify the --rpc option explicitly');
|
||
}
|
||
if (netName === "testRPC") {
|
||
isTestRPC = true;
|
||
}
|
||
if (localMode) {
|
||
console.log("Local mode detected: will not submit signed TX to remote node");
|
||
doNotSubmitTx = true;
|
||
}
|
||
|
||
if (isTestRPC) {
|
||
tornadoAddress = currency === netSymbol.toLowerCase() ? contractJson.networks[netId].address : erc20tornadoJson.networks[netId].address;
|
||
tokenAddress = currency !== netSymbol.toLowerCase() ? erc20ContractJson.networks[netId].address : null;
|
||
deployedBlockNumber = 0;
|
||
senderAccount = (await web3.eth.getAccounts())[0];
|
||
} else {
|
||
try {
|
||
if (balanceCheck) {
|
||
currency = netSymbol.toLowerCase();
|
||
amount = Object.keys(config.deployments[`netId${netId}`][currency].instanceAddress)[0];
|
||
}
|
||
tornadoAddress = config.deployments[`netId${netId}`].proxy;
|
||
multiCall = config.deployments[`netId${netId}`].multicall;
|
||
subgraph = config.deployments[`netId${netId}`].subgraph;
|
||
tornadoInstance = config.deployments[`netId${netId}`][currency].instanceAddress[amount];
|
||
deployedBlockNumber = config.deployments[`netId${netId}`][currency].deployedBlockNumber[amount];
|
||
|
||
if (!tornadoAddress) {
|
||
throw new Error();
|
||
}
|
||
tokenAddress = currency !== netSymbol.toLowerCase() ? config.deployments[`netId${netId}`][currency].tokenAddress : null;
|
||
} catch (e) {
|
||
console.error('There is no such tornado instance, check the currency and amount you provide', e);
|
||
process.exit(1);
|
||
}
|
||
}
|
||
tornado = new web3.eth.Contract(contractJson, tornadoAddress);
|
||
tornadoContract = new web3.eth.Contract(instanceJson, tornadoInstance);
|
||
contractAddress = tornadoAddress;
|
||
erc20 = currency !== netSymbol.toLowerCase() ? new web3.eth.Contract(erc20ContractJson.abi, tokenAddress) : {};
|
||
erc20Address = tokenAddress;
|
||
}
|
||
|
||
async function main() {
|
||
if (inBrowser) {
|
||
const instance = { currency: 'eth', amount: '0.1' };
|
||
await init(instance);
|
||
window.deposit = async () => {
|
||
await deposit(instance);
|
||
}
|
||
window.withdraw = async () => {
|
||
const noteString = prompt('Enter the note to withdraw');
|
||
const recipient = (await web3.eth.getAccounts())[0];
|
||
|
||
const { currency, amount, netId, deposit } = parseNote(noteString);
|
||
await init({ noteNetId: netId, currency, amount });
|
||
await withdraw({ deposit, currency, amount, recipient });
|
||
}
|
||
} else {
|
||
program
|
||
.option('-r, --rpc <URL>', 'The RPC that CLI should interact with', 'http://localhost:8545')
|
||
.option('-R, --relayer <URL>', 'Withdraw via relayer')
|
||
.option('-T, --tor <PORT>', 'Optional tor port')
|
||
.option('-L, --local', 'Local Node - Does not submit signed transaction to the node');
|
||
program
|
||
.command('createNote <currency> <amount> <chainId>')
|
||
.description(
|
||
'Create deposit note and invoice, allows generating private key like deposit notes from secure, offline environment. The currency is one of (ETH|DAI|cDAI|USDC|cUSDC|USDT). The amount depends on currency, see config.js file or visit https://tornado.cash.'
|
||
)
|
||
.action(async (currency, amount, chainId) => {
|
||
currency = currency.toLowerCase();
|
||
await createInvoice({ currency, amount, chainId });
|
||
});
|
||
program
|
||
.command('depositInvoice <invoice>')
|
||
.description(
|
||
'Submit a deposit of invoice from default eth account and return the resulting note.'
|
||
)
|
||
.action(async (invoice) => {
|
||
torPort = program.tor;
|
||
const { currency, amount, netId, commitmentNote } = parseInvoice(invoice);
|
||
await init({ rpc: program.rpc, currency, amount, localMode: program.local });
|
||
console.log("Creating", currency.toUpperCase(), amount, "deposit for", netName, "Tornado Cash Instance");
|
||
await deposit({ currency, amount, commitmentNote });
|
||
});
|
||
program
|
||
.command('deposit <currency> <amount>')
|
||
.description(
|
||
'Submit a deposit of specified currency and amount from default eth account and return the resulting note. The currency is one of (ETH|DAI|cDAI|USDC|cUSDC|USDT). The amount depends on currency, see config.js file or visit https://tornado.cash.'
|
||
)
|
||
.action(async (currency, amount) => {
|
||
currency = currency.toLowerCase();
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, currency, amount, localMode: program.local });
|
||
await deposit({ currency, amount });
|
||
});
|
||
program
|
||
.command('withdraw <note> <recipient> [ETH_purchase]')
|
||
.description(
|
||
'Withdraw a note to a recipient account using relayer or specified private key. You can exchange some of your deposit`s tokens to ETH during the withdrawal by specifing ETH_purchase (e.g. 0.01) to pay for gas in future transactions. Also see the --relayer option.'
|
||
)
|
||
.action(async (noteString, recipient, refund) => {
|
||
const { currency, amount, netId, deposit } = parseNote(noteString);
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, noteNetId: netId, currency, amount, localMode: program.local });
|
||
await withdraw({
|
||
deposit,
|
||
currency,
|
||
amount,
|
||
recipient,
|
||
refund,
|
||
relayerURL: program.relayer
|
||
});
|
||
});
|
||
program
|
||
.command('balance [address] [token_address]')
|
||
.description('Check ETH and ERC20 balance')
|
||
.action(async (address, tokenAddress) => {
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, balanceCheck: true });
|
||
if (!address && senderAccount) {
|
||
console.log("Using address", senderAccount, "from private key");
|
||
address = senderAccount;
|
||
}
|
||
await printETHBalance({ address, name: 'Account' });
|
||
if (tokenAddress) {
|
||
await printERC20Balance({ address, name: 'Account', tokenAddress });
|
||
}
|
||
});
|
||
program
|
||
.command('send <address> [amount] [token_address]')
|
||
.description('Send ETH or ERC to address')
|
||
.action(async (address, amount, tokenAddress) => {
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, balanceCheck: true, localMode: program.local });
|
||
await send({ address, amount, tokenAddress });
|
||
});
|
||
program
|
||
.command('broadcast <signedTX>')
|
||
.description('Submit signed TX to the remote node')
|
||
.action(async (signedTX) => {
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, balanceCheck: true });
|
||
await submitTransaction(signedTX);
|
||
});
|
||
program
|
||
.command('compliance <note>')
|
||
.description(
|
||
'Shows the deposit and withdrawal of the provided note. This might be necessary to show the origin of assets held in your withdrawal address.'
|
||
)
|
||
.action(async (noteString) => {
|
||
const { currency, amount, netId, deposit } = parseNote(noteString);
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, noteNetId: netId, currency, amount });
|
||
const depositInfo = await loadDepositData({ amount, currency, deposit });
|
||
const depositDate = new Date(depositInfo.timestamp * 1000);
|
||
console.log('\n=============Deposit=================');
|
||
console.log('Deposit :', amount, currency.toUpperCase());
|
||
console.log('Date :', depositDate.toLocaleDateString(), depositDate.toLocaleTimeString());
|
||
console.log('From :', `https://${getExplorerLink()}/address/${depositInfo.from}`);
|
||
console.log('Transaction :', `https://${getExplorerLink()}/tx/${depositInfo.txHash}`);
|
||
console.log('Commitment :', depositInfo.commitment);
|
||
console.log('Spent :', depositInfo.isSpent);
|
||
if (!depositInfo.isSpent) {
|
||
console.log('The note was not spent');
|
||
return;
|
||
}
|
||
console.log('=====================================', '\n');
|
||
|
||
const withdrawInfo = await loadWithdrawalData({ amount, currency, deposit });
|
||
const withdrawalDate = new Date(withdrawInfo.timestamp * 1000);
|
||
console.log('\n=============Withdrawal==============');
|
||
console.log('Withdrawal :', withdrawInfo.amount, currency);
|
||
console.log('Relayer Fee :', withdrawInfo.fee, currency);
|
||
console.log('Date :', withdrawalDate.toLocaleDateString(), withdrawalDate.toLocaleTimeString());
|
||
console.log('To :', `https://${getExplorerLink()}/address/${withdrawInfo.to}`);
|
||
console.log('Transaction :', `https://${getExplorerLink()}/tx/${withdrawInfo.txHash}`);
|
||
console.log('Nullifier :', withdrawInfo.nullifier);
|
||
console.log('=====================================', '\n');
|
||
});
|
||
program
|
||
.command('syncEvents <type> <currency> <amount>')
|
||
.description(
|
||
'Sync the local cache file of deposit / withdrawal events for specific currency.'
|
||
)
|
||
.action(async (type, currency, amount) => {
|
||
console.log("Starting event sync command");
|
||
currency = currency.toLowerCase();
|
||
torPort = program.tor;
|
||
await init({ rpc: program.rpc, type, currency, amount });
|
||
const cachedEvents = await fetchEvents({ type, currency, amount });
|
||
console.log("Synced event for", type, amount, currency.toUpperCase(), netName, "Tornado instance to block", cachedEvents[cachedEvents.length - 1].blockNumber);
|
||
});
|
||
program
|
||
.command('test')
|
||
.description('Perform an automated test. It deposits and withdraws one ETH and one ERC20 note. Uses ganache.')
|
||
.action(async () => {
|
||
console.log('Start performing ETH deposit-withdraw test');
|
||
let currency = 'eth';
|
||
let amount = '0.1';
|
||
await init({ rpc: program.rpc, currency, amount });
|
||
let noteString = await deposit({ currency, amount });
|
||
let parsedNote = parseNote(noteString);
|
||
await withdraw({
|
||
deposit: parsedNote.deposit,
|
||
currency,
|
||
amount,
|
||
recipient: senderAccount,
|
||
relayerURL: program.relayer
|
||
});
|
||
|
||
console.log('\nStart performing DAI deposit-withdraw test');
|
||
currency = 'dai';
|
||
amount = '100';
|
||
await init({ rpc: program.rpc, currency, amount });
|
||
noteString = await deposit({ currency, amount });
|
||
parsedNote = parseNote(noteString);
|
||
await withdraw({
|
||
deposit: parsedNote.deposit,
|
||
currency,
|
||
amount,
|
||
recipient: senderAccount,
|
||
refund: '0.02',
|
||
relayerURL: program.relayer
|
||
});
|
||
});
|
||
try {
|
||
await program.parseAsync(process.argv);
|
||
process.exit(0);
|
||
} catch (e) {
|
||
console.log('Error:', e);
|
||
process.exit(1);
|
||
}
|
||
}
|
||
}
|
||
|
||
main();
|