Merge branch 'master' into fixTorando

2021-07-16 13:30:07 +03:00 · 2021-07-16 13:30:07 +03:00 · 4dbdd42252
commit 4dbdd42252
parent 7d071b2ac5 6ce616cbaf
3 changed files with 139 additions and 72 deletions
--- a/.prettierrc
+++ b/.prettierrc
@ -0,0 +1,7 @@
+{
+  "singleQuote": true,
+  "trailingComma": "none",
+  "bracketSpacing": true,
+  "semi": false,
+  "printWidth": 130
+}
--- a/README.md
+++ b/README.md
@ -7,24 +7,25 @@ Current cli version doesn't support [Anonymity Mining](https://tornado-cash.medi

 Example:
 ```bash
-./cli.js deposit ETH 0.1 --rpc https://kovan.infura.io/v3/27a9649f826b4e31a83e07ae09a87448
+$ ./cli.js deposit ETH 0.1 --rpc https://kovan.infura.io/v3/27a9649f826b4e31a83e07ae09a87448
+
+Your note: tornado-eth-0.1-42-0xf73dd6833ccbcc046c44228c8e2aa312bf49e08389dadc7c65e6a73239867b7ef49c705c4db227e2fadd8489a494b6880bdcb6016047e019d1abec1c7652
+Tornado ETH balance is 8.9
+Sender account ETH balance is 1004873.470619891361352542
+Submitting deposit transaction
+Tornado ETH balance is 9
+Sender account ETH balance is 1004873.361652048361352542
 ```
-> Your note: tornado-eth-0.1-42-0xf73dd6833ccbcc046c44228c8e2aa312bf49e08389dadc7c65e6a73239867b7ef49c705c4db227e2fadd8489a494b6880bdcb6016047e019d1abec1c7652
-> Tornado ETH balance is 8.9
-> Sender account ETH balance is 1004873.470619891361352542
-> Submitting deposit transaction
-> Tornado ETH balance is 9
-> Sender account ETH balance is 1004873.361652048361352542

 ```bash
-./cli.js withdraw tornado-eth-0.1-42-0xf73dd6833ccbcc046c44228c8e2aa312bf49e08389dadc7c65e6a73239867b7ef49c705c4db227e2fadd8489a494b6880bdcb6016047e019d1abec1c7652 0x8589427373D6D84E98730D7795D8f6f8731FDA16 --rpc https://kovan.infura.io/v3/27a9649f826b4e31a83e07ae09a87448 --relayer https://kovan-frelay.duckdns.org
-```
+$ ./cli.js withdraw tornado-eth-0.1-42-0xf73dd6833ccbcc046c44228c8e2aa312bf49e08389dadc7c65e6a73239867b7ef49c705c4db227e2fadd8489a494b6880bdcb6016047e019d1abec1c7652 0x8589427373D6D84E98730D7795D8f6f8731FDA16 --rpc https://kovan.infura.io/v3/27a9649f826b4e31a83e07ae09a87448 --relayer https://kovan-frelay.duckdns.org

-> Relay address:  0x6A31736e7490AbE5D5676be059DFf064AB4aC754
-> Getting current state from tornado contract
-> Generating SNARK proof
-> Proof time: 9117.051ms
-> Sending withdraw transaction through relay
-> Transaction submitted through the relay. View transaction on etherscan https://kovan.etherscan.io/tx/0xcb21ae8cad723818c6bc7273e83e00c8393fcdbe74802ce5d562acad691a2a7b
-> Transaction mined in block 17036120
-> Done
+Relay address:  0x6A31736e7490AbE5D5676be059DFf064AB4aC754
+Getting current state from tornado contract
+Generating SNARK proof
+Proof time: 9117.051ms
+Sending withdraw transaction through relay
+Transaction submitted through the relay. View transaction on etherscan https://kovan.etherscan.io/tx/0xcb21ae8cad723818c6bc7273e83e00c8393fcdbe74802ce5d562acad691a2a7b
+Transaction mined in block 17036120
+Done
+```
--- a/cli.js
+++ b/cli.js
@ -23,14 +23,14 @@ let web3, tornado, mixerContract, tornadoInstance, circuit, proving_key, groth16
 let MERKLE_TREE_HEIGHT, ETH_AMOUNT, TOKEN_AMOUNT, PRIVATE_KEY

 /** Whether we are in a browser or node.js */
-const inBrowser = (typeof window !== 'undefined')
+const inBrowser = typeof window !== 'undefined'
 let isLocalRPC = false

 /** Generate random number of specified byte length */
-const rbigint = nbytes => snarkjs.bigInt.leBuff2int(crypto.randomBytes(nbytes))
+const rbigint = (nbytes) => snarkjs.bigInt.leBuff2int(crypto.randomBytes(nbytes))

 /** Compute pedersen hash */
-const pedersenHash = data => circomlib.babyJub.unpackPoint(circomlib.pedersenHash.hash(data))[0]
+const pedersenHash = (data) => circomlib.babyJub.unpackPoint(circomlib.pedersenHash.hash(data))[0]

 /** BigNumber to hex string of specified length */
 function toHex(number, length = 32) {
@ -69,7 +69,10 @@ function createDeposit({ nullifier, secret }) {
 * @param amount Deposit amount
 */
 async function deposit({ currency, amount }) {
-  const deposit = createDeposit({ nullifier: rbigint(31), secret: rbigint(31) })
+  const deposit = createDeposit({
+    nullifier: rbigint(31),
+    secret: rbigint(31)
+  })
  const note = toHex(deposit.preimage, 62)
  const noteString = `tornado-${currency}-${amount}-${netId}-${note}`
  console.log(`Your note: ${noteString}`)
@ -81,7 +84,8 @@ async function deposit({ currency, amount }) {
    await tornado.methods.deposit(tornadoInstance, toHex(deposit.commitment), []).send({ value, from: senderAccount, gas: 2e6 })
    await printETHBalance({ address: tornado._address, name: 'Tornado' })
    await printETHBalance({ address: senderAccount, name: 'Sender account' })
-  } else { // a token
+  } else {
+    // a token
    await printERC20Balance({ address: tornado._address, name: 'Tornado' })
    await printERC20Balance({ address: senderAccount, name: 'Sender account' })
    const decimals = isLocalRPC ? 18 : config.deployments[`netId${netId}`][currency].decimals
@ -116,6 +120,7 @@ async function deposit({ currency, amount }) {
 async function generateMerkleProof(deposit, amount) {
  let leafIndex = -1
  // Get all deposit events from smart contract and assemble merkle tree from them
+
  const cachedEvents = loadCachedEvents({ type: 'Deposit', amount })

  const startBlock = cachedEvents.lastBlock
@ -189,7 +194,7 @@ async function generateProof({ deposit, amount, recipient, relayerAddress = 0, f
    nullifier: deposit.nullifier,
    secret: deposit.secret,
    pathElements: path_elements,
-    pathIndices: path_index,
+    pathIndices: path_index
  }

  console.log('Generating SNARK proof')
@ -227,13 +232,21 @@ async function withdraw({ deposit, currency, amount, recipient, relayerURL, refu
    const relayerStatus = await axios.get(relayerURL + '/status')

    const { rewardAccount, netId, ethPrices, tornadoServiceFee } = relayerStatus.data
-    assert(netId === await web3.eth.net.getId() || netId === '*', 'This relay is for different network')
+    assert(netId === (await web3.eth.net.getId()) || netId === '*', 'This relay is for different network')
    console.log('Relay address: ', rewardAccount)

    const gasPrice = await fetchGasPrice()

    const decimals = isLocalRPC ? 18 : config.deployments[`netId${netId}`][currency].decimals
-    const fee = calculateFee({ currency, gasPrice, amount, refund, ethPrices, relayerServiceFee: tornadoServiceFee, decimals })
+    const fee = calculateFee({
+      currency,
+      gasPrice,
+      amount,
+      refund,
+      ethPrices,
+      relayerServiceFee: tornadoServiceFee,
+      decimals
+    })
    if (fee.gt(fromDecimals({ amount, decimals }))) {
      throw new Error('Too high refund')
    }
@ -242,7 +255,11 @@ async function withdraw({ deposit, currency, amount, recipient, relayerURL, refu

    console.log('Sending withdraw transaction through relay')
    try {
-      const response = await axios.post(relayerURL + '/v1/tornadoWithdraw', { contract: tornadoInstance, proof, args })
+      const response = await axios.post(relayerURL + '/v1/tornadoWithdraw', {
+        contract: tornadoInstance,
+        proof,
+        args
+      })

      const { id } = response.data

@ -255,25 +272,29 @@ async function withdraw({ deposit, currency, amount, recipient, relayerURL, refu
        console.error(e.message)
      }
    }
-  } else { // using private key
+  } else {
+    // using private key
    const { proof, args } = await generateProof({ deposit, recipient, refund })

    console.log('Submitting withdraw transaction')
-    await tornado.methods.withdraw(tornadoInstance, proof, ...args).send({ from: senderAccount, value: refund.toString(), gas: 1e6 })
+    await tornado.methods
+      .withdraw(tornadoInstance, proof, ...args)
+      .send({ from: senderAccount, value: refund.toString(), gas: 1e6 })
      .on('transactionHash', function (txHash) {
        if (netId === 1 || netId === 42) {
          console.log(`View transaction on etherscan https://${getCurrentNetworkName()}etherscan.io/tx/${txHash}`)
        } else {
          console.log(`The transaction hash is ${txHash}`)
        }
-      }).on('error', function (e) {
+      })
+      .on('error', function (e) {
        console.error('on transactionHash error', e.message)
      })
  }
  console.log('Done')
 }

-function getStatus (id, relayerURL) {
+function getStatus(id, relayerURL) {
  return new Promise((resolve) => {
    async function getRelayerStatus() {
      const responseStatus = await axios.get(relayerURL + '/v1/jobs/' + id)
@ -289,7 +310,9 @@ function getStatus (id, relayerURL) {

        if (status === 'CONFIRMED') {
          const receipt = await waitForTxReceipt({ txHash })
-          console.log(`Transaction submitted through the relay. View transaction on etherscan https://${getCurrentNetworkName()}etherscan.io/tx/${txHash}`)
+          console.log(
+            `Transaction submitted through the relay. View transaction on etherscan https://${getCurrentNetworkName()}etherscan.io/tx/${txHash}`
+          )
          console.log('Transaction mined in block', receipt.blockNumber)
          resolve(status)
        }
@ -322,9 +345,7 @@ function fromDecimals({ amount, decimals }) {
  // 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'
-    )
+    throw new Error('[ethjs-unit] while converting number ' + amount + ' to wei,  too many decimal points')
  }

  let whole = comps[0]
@ -337,9 +358,7 @@ function fromDecimals({ amount, decimals }) {
    fraction = '0'
  }
  if (fraction.length > baseLength) {
-    throw new Error(
-      '[ethjs-unit] while converting number ' + amount + ' to wei, too many decimal places'
-    )
+    throw new Error('[ethjs-unit] while converting number ' + amount + ' to wei, too many decimal places')
  }

  while (fraction.length < baseLength) {
@ -401,7 +420,6 @@ function getCurrentNetworkName() {
    case 42:
      return 'kovan.'
  }
-
 }

 function gasPrices(value = 80) {
@ -423,9 +441,8 @@ async function fetchGasPrice() {
 }

 function calculateFee({ currency, gasPrice, amount, refund, ethPrices, relayerServiceFee, decimals }) {
-  const decimalsPoint = Math.floor(relayerServiceFee) === Number(relayerServiceFee) ?
-    0 :
-    relayerServiceFee.toString().split('.')[1].length
+  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))
@ -437,7 +454,8 @@ function calculateFee({ currency, gasPrice, amount, refund, ethPrices, relayerSe
      break
    }
    default: {
-    desiredFee = expense.add(toBN(refund))
+      desiredFee = expense
+        .add(toBN(refund))
        .mul(toBN(10 ** decimals))
        .div(toBN(ethPrices[currency]))
      desiredFee = desiredFee.add(feePercent)
@ -512,7 +530,12 @@ function parseNote(noteString) {
  const deposit = createDeposit({ nullifier, secret })
  const netId = Number(match.groups.netId)

-  return { currency: match.groups.currency, amount: match.groups.amount, netId, deposit }
+  return {
+    currency: match.groups.currency,
+    amount: match.groups.amount,
+    netId,
+    deposit
+  }
 }

 async function loadDepositData({ deposit }) {
@ -533,7 +556,13 @@ async function loadDepositData({ deposit }) {
    const isSpent = await tornado.methods.isSpent(deposit.nullifierHex).call()
    const receipt = await web3.eth.getTransactionReceipt(txHash)

-    return { timestamp, txHash, isSpent, from: receipt.from, commitment: deposit.commitmentHex }
+    return {
+      timestamp,
+      txHash,
+      isSpent,
+      from: receipt.from,
+      commitment: deposit.commitmentHex
+    }
  } catch (e) {
    console.error('loadDepositData', e)
  }
@ -569,9 +598,7 @@ async function loadWithdrawalData({ amount, currency, deposit }) {

    const fee = withdrawEvent.fee
    const decimals = config.deployments[`netId${netId}`][currency].decimals
-    const withdrawalAmount = toBN(fromDecimals({ amount, decimals })).sub(
-      toBN(fee)
-    )
+    const withdrawalAmount = toBN(fromDecimals({ amount, decimals })).sub(toBN(fee))
    const { timestamp } = await web3.eth.getBlock(withdrawEvent.blockHash)
    return {
      amount: toDecimals(withdrawalAmount, decimals, 9),
@ -595,7 +622,9 @@ async function init({ rpc, noteNetId, currency = 'dai', amount = '100' }) {
  if (inBrowser) {
    // Initialize using injected web3 (Metamask)
    // To assemble web version run `npm run browserify`
-    web3 = new Web3(window.web3.currentProvider, null, { transactionConfirmationBlocks: 1 })
+    web3 = new Web3(window.web3.currentProvider, null, {
+      transactionConfirmationBlocks: 1
+    })
    contractJson = await (await fetch('build/contracts/TornadoProxy.abi.json')).json()
    mixerJson = await (await fetch('build/contracts/Mixer.abi.json')).json()
    circuit = await (await fetch('build/circuits/tornado.json')).json()
@ -678,7 +707,9 @@ async function main() {
      .option('-R, --relayer <URL>', 'Withdraw via relayer')
    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.')
+      .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()
        await init({ rpc: program.rpc, currency, amount })
@ -686,11 +717,20 @@ async function main() {
      })
    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.')
+      .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)
        await init({ rpc: program.rpc, noteNetId: netId, currency, amount })
-        await withdraw({ deposit, currency, amount, recipient, refund, relayerURL: program.relayer })
+        await withdraw({
+          deposit,
+          currency,
+          amount,
+          recipient,
+          refund,
+          relayerURL: program.relayer
+        })
      })
    program
      .command('balance <address> [token_address]')
@ -704,7 +744,9 @@ async function main() {
      })
    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.')
+      .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)
        await init({ rpc: program.rpc, noteNetId: netId, currency, amount })
@ -720,7 +762,11 @@ async function main() {
          console.log('The note was not spent')
        }

-        const withdrawInfo = await loadWithdrawalData({ amount, currency, deposit })
+        const withdrawInfo = await loadWithdrawalData({
+          amount,
+          currency,
+          deposit
+        })
        const withdrawalDate = new Date(withdrawInfo.timestamp * 1000)
        console.log('\n=============Withdrawal==============')
        console.log('Withdrawal  :', withdrawInfo.amount, currency)
@ -740,15 +786,28 @@ async function main() {
        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 })
+        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 })
+        parsedNote = parseNote(noteString)
+        await withdraw({
+          deposit: parsedNote.deposit,
+          currency,
+          amount,
+          recipient: senderAccount,
+          refund: '0.02',
+          relayerURL: program.relayer
+        })
      })
    try {
      await program.parseAsync(process.argv)