tornadocash/tornado-relayer
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relayer check

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This commit is contained in:
Alexey 2019-09-20 00:46:20 +03:00
parent cd9f19e1f5
commit 3f4ae6be43
1 changed files with 15 additions and 3 deletions
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18
index.js
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@ -1,4 +1,4 @@
const { numberToHex, toWei, toHex, toBN } = require('web3-utils')
const { numberToHex, toWei, toHex, toBN, toChecksumAddress } = require('web3-utils')
const Web3 = require('web3')
const express = require('express')
@ -34,7 +34,8 @@ const ethPriceInDai = toWei('200')
app.get('/', function (req, res) {
// just for testing purposes
res.send(`Tornado mixer relayer. Gas Price is ${JSON.stringify(gasPrices)}. Mixer addresses are ${mixers}`)
res.send(`Tornado mixer relayer. Gas Price is ${JSON.stringify(gasPrices)}.
Mixer addresses are ${JSON.stringify(mixers)}`)
})
app.post('/relay', async (req, resp) => {
@ -43,12 +44,23 @@ app.post('/relay', async (req, resp) => {
console.log('Proof is invalid:', reason)
return resp.status(400).json({ error: 'Proof is invalid' })
}
let currency
( { valid, currency } = isKnownContract(req.body.contract))
if (!valid) {
console.log('Contract does not exist:', req.body.contract)
return resp.status(400).json({ error: 'This relayer does not support the token' })
}
let { pi_a, pi_b, pi_c, publicSignals } = req.body.proof
const relayer = toChecksumAddress(`0x${publicSignals[3].slice(26)}`)
if (relayer !== web3.eth.defaultAccount) {
console.log('This proof is for different relayer:', relayer)
return resp.status(400).json({ error: 'Relayer address is invalid' })
}
const fee = toBN(publicSignals[3])
const fee = toBN(publicSignals[4])
const expense = toBN(toWei(gasPrices.fast.toString(), 'gwei')).mul(toBN('1000000'))
let desiredFee
switch (currency) {