forked from tornadocash/classic-ui
991 lines
31 KiB
JavaScript
991 lines
31 KiB
JavaScript
/* eslint-disable camelcase */
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/* eslint-disable no-console, import/order */
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import Web3 from 'web3'
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import networkConfig from '@/networkConfig'
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import { cachedEventsLength, eventsType } from '@/constants'
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import MulticallABI from '@/abis/Multicall.json'
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import InstanceABI from '@/abis/Instance.abi.json'
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import TornadoProxyABI from '@/abis/TornadoProxy.abi.json'
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import { ACTION, ACTION_GAS } from '@/constants/variables'
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import { graph, treesInterface, EventsFactory } from '@/services'
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import {
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randomBN,
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parseNote,
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toFixedHex,
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saveAsFile,
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isEmptyArray,
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decimalPlaces,
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parseHexNote,
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checkCommitments,
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buffPedersenHash
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} from '@/utils'
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import { buildGroth16, download, getTornadoKeys } from './snark'
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let groth16
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const websnarkUtils = require('websnark/src/utils')
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const { toWei, numberToHex, toBN, isAddress } = require('web3-utils')
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const getStatisticStore = (acc, { tokens }) => {
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Object.entries(tokens).forEach(([currency, { instanceAddress }]) => {
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acc[currency] = Object.assign({}, acc[currency])
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Object.keys(instanceAddress).forEach((amount) => {
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if (!acc[currency][amount]) {
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acc[currency][amount] = {
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latestDeposits: [],
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nextDepositIndex: null,
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anonymitySet: null
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}
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}
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})
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})
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return acc
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}
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const defaultStatistics = Object.values(networkConfig).reduce(getStatisticStore, {})
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const state = () => {
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return {
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note: null,
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commitment: null,
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prefix: null,
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notes: {},
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statistic: defaultStatistics,
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ip: {},
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selectedInstance: { currency: 'eth', amount: 0.1 },
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selectedStatistic: { currency: 'eth', amount: 0.1 },
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withdrawType: 'relayer',
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ethToReceive: '20000000000000000',
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defaultEthToReceive: '20000000000000000',
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withdrawNote: ''
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}
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}
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const mutations = {
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SAVE_DEPOSIT(state, { note, commitment, prefix }) {
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state.note = note
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state.commitment = commitment
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state.prefix = prefix
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},
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SAVE_PROOF(state, { proof, args, note }) {
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this._vm.$set(state.notes, note, { proof, args })
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},
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REMOVE_PROOF(state, { note }) {
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this._vm.$delete(state.notes, note)
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},
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SAVE_LAST_INDEX(state, { nextDepositIndex, anonymitySet, currency, amount }) {
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const currentState = state.statistic[currency][amount]
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this._vm.$set(state.statistic[currency], `${amount}`, { ...currentState, nextDepositIndex, anonymitySet })
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},
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SAVE_LAST_EVENTS(state, { latestDeposits, currency, amount }) {
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const currentState = state.statistic[currency][amount]
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this._vm.$set(state.statistic[currency], `${amount}`, { ...currentState, latestDeposits })
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},
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SET_SELECTED_INSTANCE(state, selectedInstance) {
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state.selectedInstance = selectedInstance
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},
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SET_SELECTED_STATISTIC(state, selectedStatistic) {
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state.selectedStatistic = selectedStatistic
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},
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SET_WITHDRAW_TYPE(state, { withdrawType }) {
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this._vm.$set(state, 'withdrawType', withdrawType)
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},
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SAVE_ETH_TO_RECEIVE(state, { ethToReceive }) {
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this._vm.$set(state, 'ethToReceive', ethToReceive)
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},
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SAVE_DEFAULT_ETH_TO_RECEIVE(state, { ethToReceive }) {
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this._vm.$set(state, 'defaultEthToReceive', ethToReceive)
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},
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SET_WITHDRAW_NOTE(state, withdrawNote) {
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state.withdrawNote = withdrawNote
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}
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}
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const getters = {
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eventsInterface: (state, getters, rootState, rootGetters) => {
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const netId = rootGetters['metamask/netId']
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const { url } = rootState.settings[`netId${netId}`].rpc
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return new EventsFactory(url)
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},
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instanceContract: (state, getters, rootState) => ({ currency, amount, netId }) => {
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const config = networkConfig[`netId${netId}`]
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const { url } = rootState.settings[`netId${netId}`].rpc
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const address = config.tokens[currency].instanceAddress[amount]
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const web3 = new Web3(url)
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return new web3.eth.Contract(InstanceABI, address)
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},
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multicallContract: (state, getters, rootState) => ({ netId }) => {
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const config = networkConfig[`netId${netId}`]
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const { url } = rootState.settings[`netId${netId}`].rpc
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const web3 = new Web3(url)
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return new web3.eth.Contract(MulticallABI, config.multicall)
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},
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tornadoProxyContract: (state, getters, rootState) => ({ netId }) => {
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const {
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'tornado-proxy.contract.tornadocash.eth': tornadoProxy,
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'tornado-router.contract.tornadocash.eth': tornadoRouter,
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'tornado-proxy-light.contract.tornadocash.eth': tornadoProxyLight
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} = networkConfig[`netId${netId}`]
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const proxyContract = tornadoRouter || tornadoProxy || tornadoProxyLight
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const { url } = rootState.settings[`netId${netId}`].rpc
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const web3 = new Web3(url)
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return new web3.eth.Contract(TornadoProxyABI, proxyContract)
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},
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currentContract: (state, getters) => (params) => {
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return getters.tornadoProxyContract(params)
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},
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withdrawGas: (state, getters) => {
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let action = ACTION.WITHDRAW_WITH_EXTRA
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if (getters.hasEnabledLightProxy) {
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action = ACTION.WITHDRAW
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}
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if (getters.isOptimismConnected) {
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action = ACTION.OP_WITHDRAW
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}
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if (getters.isArbitrumConnected) {
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action = ACTION.ARB_WITHDRAW
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}
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return ACTION_GAS[action]
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},
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networkFee: (state, getters, rootState, rootGetters) => {
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const gasPrice = rootGetters['gasPrices/gasPrice']
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const networkFee = toBN(gasPrice).mul(toBN(getters.withdrawGas))
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if (getters.isOptimismConnected) {
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const l1Fee = rootGetters['gasPrices/l1Fee']
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return networkFee.add(toBN(l1Fee))
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}
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return networkFee
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},
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relayerFee: (state, getters, rootState, rootGetters) => {
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const { currency, amount } = rootState.application.selectedStatistic
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const { decimals } = rootGetters['metamask/networkConfig'].tokens[currency]
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const nativeCurrency = rootGetters['metamask/nativeCurrency']
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const total = toBN(rootGetters['token/fromDecimals'](amount.toString()))
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const fee = rootState.relayer.selectedRelayer.tornadoServiceFee
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const decimalsPoint = decimalPlaces(fee)
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const roundDecimal = 10 ** decimalsPoint
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const aroundFee = toBN(parseInt(fee * roundDecimal, 10))
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const tornadoServiceFee = total.mul(aroundFee).div(toBN(roundDecimal * 100))
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const ethFee = getters.networkFee
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switch (currency) {
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case nativeCurrency: {
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return ethFee.add(tornadoServiceFee)
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}
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default: {
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const tokenFee = ethFee.mul(toBN(10 ** decimals)).div(toBN(rootState.price.prices[currency]))
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return tokenFee.add(tornadoServiceFee)
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}
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}
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},
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ethToReceiveInToken: (state, getters, rootState, rootGetters) => {
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const { currency } = rootState.application.selectedStatistic
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const { decimals } = rootGetters['metamask/networkConfig'].tokens[currency]
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const price = rootState.price.prices[currency]
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const ethToReceive = toBN(state.ethToReceive)
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return ethToReceive.mul(toBN(10 ** decimals)).div(toBN(price))
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},
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isNotEnoughTokens: (state, getters, rootState, rootGetters) => {
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const { amount, currency } = rootState.application.selectedStatistic
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let total = toBN(rootGetters['token/fromDecimals'](amount.toString()))
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if (state.withdrawType === 'relayer') {
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const relayerFee = getters.relayerFee
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const nativeCurrency = rootGetters['metamask/nativeCurrency']
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if (currency === nativeCurrency) {
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total = total.sub(relayerFee)
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} else {
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const ethToReceiveInToken = getters.ethToReceiveInToken
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total = total.sub(relayerFee).sub(ethToReceiveInToken)
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}
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}
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return total.isNeg()
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},
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maxEthToReceive: (state, getters, rootState, rootGetters) => {
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const { currency, amount } = rootState.application.selectedStatistic
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const { decimals } = rootGetters['metamask/networkConfig'].tokens[currency]
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const total = toBN(rootGetters['token/fromDecimals'](amount.toString()))
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const price = rootState.price.prices[currency]
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const relayerFee = getters.relayerFee
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return total
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.sub(relayerFee)
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.mul(toBN(price))
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.div(toBN(10 ** decimals))
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},
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selectedCurrency: (state, getters, rootState, rootGetters) => {
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const tokens = rootGetters['metamask/networkConfig'].tokens
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return tokens[state.selectedInstance.currency].symbol
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},
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selectedStatisticCurrency: (state, getters, rootState, rootGetters) => {
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const tokens = rootGetters['metamask/networkConfig'].tokens
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return tokens[state.selectedStatistic.currency].symbol
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},
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lastEventIndex: (state) => ({ currency, amount }) => {
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return state.statistic[currency][amount].anonymitySet
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},
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latestDeposits: (state) => {
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const { currency, amount } = state.selectedStatistic
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return state.statistic[currency][amount].latestDeposits
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},
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hasEnabledLightProxy: (state, getters, rootState, rootGetters) => {
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return Boolean(rootGetters['metamask/networkConfig']['tornado-proxy-light.contract.tornadocash.eth'])
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},
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isOptimismConnected: (state, getters, rootState, rootGetters) => {
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const netId = rootGetters['metamask/netId']
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return Number(netId) === 10
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},
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isArbitrumConnected: (state, getters, rootState, rootGetters) => {
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const netId = rootGetters['metamask/netId']
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return Number(netId) === 42161
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}
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}
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const actions = {
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setAndUpdateStatistic({ dispatch, commit }, { currency, amount }) {
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commit('SET_SELECTED_STATISTIC', { currency, amount })
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dispatch('updateSelectEvents')
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},
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async updateSelectEvents({ dispatch, commit, state, rootGetters, getters }) {
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const netId = rootGetters['metamask/netId']
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const { currency, amount } = state.selectedStatistic
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const eventService = getters.eventsInterface.getService({ netId, amount, currency })
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const graphEvents = await eventService.getEventsFromGraph({ methodName: 'getStatistic' })
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let statistic = graphEvents?.events
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if (!statistic || !statistic.length) {
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const fresh = await eventService.getStatisticsRpc({ eventsCount: 10 })
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statistic = fresh || []
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}
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const { nextDepositIndex, anonymitySet } = await dispatch('getLastDepositIndex', {
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currency,
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amount,
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netId
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})
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statistic = statistic.sort((a, b) => a.leafIndex - b.leafIndex)
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const latestDeposits = []
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for (const event of statistic.slice(-10)) {
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latestDeposits.unshift({
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index: event.leafIndex,
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depositTime: this.$moment.unix(event.timestamp).fromNow()
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})
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}
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commit('SAVE_LAST_EVENTS', {
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amount,
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currency,
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latestDeposits
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})
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commit('SAVE_LAST_INDEX', {
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amount,
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currency,
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anonymitySet,
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nextDepositIndex
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})
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},
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async updateEvents({ getters, rootGetters }, payload) {
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try {
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const eventService = getters.eventsInterface.getService(payload)
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const freshEvents = await eventService.updateEvents(payload.type)
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return freshEvents
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} catch (err) {
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throw new Error(`Method updateEvents has error: ${err.message}`)
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}
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},
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async updateCurrentEvents({ dispatch, rootGetters }, { amount, currency, lastEvent, type, netId }) {
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let lastBlock = lastEvent
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const nativeCurrency = rootGetters['metamask/nativeCurrency']
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const { deployedBlock } = networkConfig[`netId${netId}`]
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if (currency === nativeCurrency && !lastEvent) {
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lastBlock = await this.$indexedDB(netId).getFromIndex({
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indexName: 'name',
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storeName: 'lastEvents',
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key: `${type}s_${currency}_${amount}`
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})
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}
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const params = {
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type,
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netId,
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amount,
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currency,
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fromBlock: lastBlock ? lastBlock.blockNumber + 1 : deployedBlock
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}
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const events = await dispatch('updateEvents', params)
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return events
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},
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async getLastDepositIndex({ getters }, params) {
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try {
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const contractInstance = getters.instanceContract(params)
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const nextDepositIndex = await contractInstance.methods.nextIndex().call()
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return {
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nextDepositIndex,
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anonymitySet: toBN(nextDepositIndex)
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}
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} catch (err) {
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throw new Error(`Method getLastDepositIndex has error: ${err.message}`)
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}
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},
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async loadEncryptedEvents(_, { netId }) {
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try {
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const module = await download({
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contentType: 'string',
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name: `events/encrypted_notes_${netId}.json.zip`
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})
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if (module) {
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const events = JSON.parse(module)
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return {
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events,
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lastBlock: events[events.length - 1].blockNumber
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}
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}
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} catch (err) {
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throw new Error(`Method loadCachedEvents has error: ${err.message}`)
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}
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},
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prepareDeposit({ getters, dispatch, commit, rootGetters }, { prefix }) {
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try {
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const [, currency, amount, netId] = prefix.split('-')
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const contractInstance = getters.instanceContract({ currency, amount, netId })
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const secret = randomBN(31)
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const nullifier = randomBN(31)
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const preimage = Buffer.concat([nullifier.toBuffer('le', 31), secret.toBuffer('le', 31)])
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const commitment = buffPedersenHash(preimage)
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const commitmentHex = toFixedHex(commitment)
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const note = `0x${preimage.toString('hex')}`
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const isEnabled = rootGetters['encryptedNote/isEnabledSaveFile']
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if (isEnabled) {
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setTimeout(() => {
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try {
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dispatch('saveFile', { prefix, note })
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} catch (err) {
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console.warn('NoteAccount backup as a file is not supported on this device', err)
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}
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}, 1000)
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}
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commit('SAVE_DEPOSIT', { note, commitment: commitmentHex, prefix })
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if (!contractInstance._address) {
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throw new Error(this.app.i18n.t('networkIsNotSupported'))
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}
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} catch (e) {
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console.error('prepareDeposit', e)
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}
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},
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saveFile(_, { prefix, note }) {
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try {
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const data = new Blob([`${prefix}-${note}`], { type: 'text/plain;charset=utf-8' })
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saveAsFile(data, `backup-${prefix}-${note.slice(0, 10)}.txt`)
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} catch (err) {
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console.error('saveFile', err.message)
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}
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},
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async getEncryptedEventsFromDb(_, { netId }) {
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try {
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const idb = this.$indexedDB(netId)
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if (idb.isBlocked) {
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return []
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}
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const cachedEvents = await idb.getAll({ storeName: 'encrypted_events' })
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return cachedEvents
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} catch (err) {
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console.warn(`Method getEventsFromDb has error: ${err.message}`)
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}
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},
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async getEncryptedNotes({ rootState, rootGetters, dispatch, getters }) {
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try {
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const { netId } = rootState.metamask
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const rpc = rootGetters['settings/currentRpc']
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let { ENCRYPTED_NOTES_BLOCK: deployedBlock } = networkConfig[`netId${netId}`].constants
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const contractInstance = getters.tornadoProxyContract({ netId })
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let cachedEvents = await dispatch('getEncryptedEventsFromDb', { netId })
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const networksWithCache = {
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1: cachedEventsLength.mainnet.ENCRYPTED_NOTES,
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5: cachedEventsLength.goerli.ENCRYPTED_NOTES,
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56: cachedEventsLength.bsc.ENCRYPTED_NOTES
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}
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const LENGTH_CACHE = networksWithCache[Number(netId)]
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if (
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((isEmptyArray(cachedEvents) || !cachedEvents) && networksWithCache[Number(netId)]) ||
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cachedEvents.length < LENGTH_CACHE
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) {
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;({ events: cachedEvents } = await dispatch('loadEncryptedEvents', { netId }))
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}
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const hasCache = Boolean(cachedEvents && cachedEvents.length)
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if (hasCache) {
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const [lastEvent] = cachedEvents.sort((a, b) => a.blockNumber - b.blockNumber).slice(-1)
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deployedBlock = lastEvent.blockNumber + 1
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}
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const web3 = this.$provider.getWeb3(rpc.url)
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const currentBlockNumber = await web3.eth.getBlockNumber()
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let events = []
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const { events: graphEvents, lastSyncBlock } = await graph.getAllEncryptedNotes({
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netId,
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fromBlock: deployedBlock
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})
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if (lastSyncBlock) {
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deployedBlock = lastSyncBlock
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}
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const blockDifference = Math.ceil(currentBlockNumber - deployedBlock)
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const divisor = hasCache ? 2 : 10
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let blockRange = blockDifference > divisor ? blockDifference / divisor : blockDifference
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if (Number(netId) === 56) {
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blockRange = 4950
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}
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let numberParts = blockDifference === 0 ? 1 : Math.ceil(blockDifference / blockRange)
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const part = Math.ceil(blockDifference / numberParts)
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let fromBlock = deployedBlock
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let toBlock = deployedBlock + part
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if (toBlock >= currentBlockNumber || toBlock === deployedBlock) {
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toBlock = 'latest'
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numberParts = 1
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}
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for (let i = 0; i < numberParts; i++) {
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const partOfEvents = await contractInstance.getPastEvents('EncryptedNote', {
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toBlock,
|
|
fromBlock
|
|
})
|
|
if (partOfEvents) {
|
|
events = events.concat(partOfEvents)
|
|
}
|
|
fromBlock = toBlock
|
|
toBlock += part
|
|
}
|
|
|
|
if (events && events.length) {
|
|
events = events
|
|
.filter((i) => i.returnValues.encryptedNote)
|
|
.map((e) => ({
|
|
txHash: e.transactionHash,
|
|
transactionHash: e.transactionHash,
|
|
blockNumber: Number(e.blockNumber),
|
|
encryptedNote: e.returnValues.encryptedNote
|
|
}))
|
|
}
|
|
|
|
const allEvents = [].concat(cachedEvents, graphEvents, events)
|
|
|
|
await dispatch('saveEncryptedEventsToDB', { events: allEvents, netId })
|
|
|
|
return allEvents
|
|
} catch (err) {
|
|
console.log('getEncryptedNotes', err)
|
|
}
|
|
},
|
|
async saveEncryptedEventsToDB(_, { events, netId }) {
|
|
const idb = this.$indexedDB(netId)
|
|
|
|
if (!events || !events.length || idb.isBlocked) {
|
|
return
|
|
}
|
|
|
|
await idb.createMultipleTransactions({
|
|
data: events,
|
|
storeName: `encrypted_events`
|
|
})
|
|
},
|
|
async sendDeposit({ state, rootState, getters, rootGetters, dispatch, commit }, { isEncrypted }) {
|
|
try {
|
|
const { commitment, note, prefix } = state
|
|
// eslint-disable-next-line prefer-const
|
|
let [, currency, amount, netId] = prefix.split('-')
|
|
const config = networkConfig[`netId${netId}`]
|
|
const contractInstance = getters.tornadoProxyContract({ netId })
|
|
|
|
if (!state.commitment) {
|
|
throw new Error(this.app.i18n.t('failToGenerateNote'))
|
|
}
|
|
|
|
const { nextDepositIndex: index } = await dispatch('getLastDepositIndex', { netId, currency, amount })
|
|
|
|
const { ethAccount } = rootState.metamask
|
|
const nativeCurrency = rootGetters['metamask/nativeCurrency']
|
|
const isNative = currency === nativeCurrency
|
|
|
|
const value = isNative ? toWei(amount, 'ether') : '0'
|
|
const instance = config.tokens[currency].instanceAddress[amount]
|
|
|
|
let params = [instance, commitment, []]
|
|
|
|
if (isEncrypted) {
|
|
const encryptedNote = await dispatch(
|
|
'encryptedNote/getEncryptedNote',
|
|
{ data: `${instance}-${note}` },
|
|
{ root: true }
|
|
)
|
|
|
|
params = [instance, commitment, encryptedNote]
|
|
}
|
|
|
|
const data = contractInstance.methods.deposit(...params).encodeABI()
|
|
const gas = await contractInstance.methods.deposit(...params).estimateGas({ from: ethAccount, value })
|
|
|
|
const callParams = {
|
|
method: 'eth_sendTransaction',
|
|
params: {
|
|
to: contractInstance._address,
|
|
gas: numberToHex(gas + 50000),
|
|
value: numberToHex(value),
|
|
data
|
|
},
|
|
watcherParams: {
|
|
title: { path: 'depositing', amount, currency },
|
|
successTitle: {
|
|
path: 'depositedValue',
|
|
amount,
|
|
currency
|
|
},
|
|
storeType: isEncrypted ? 'encryptedTxs' : 'txs'
|
|
},
|
|
isAwait: false
|
|
}
|
|
|
|
const txHash = await dispatch('metamask/sendTransaction', callParams, { root: true })
|
|
|
|
// there may be a race condition, you need to request an index and a timestamp of the deposit after tx is mined
|
|
const timestamp = Math.round(new Date().getTime() / 1000)
|
|
|
|
const { nullifierHex, commitmentHex } = parseHexNote(state.note)
|
|
const storeType = isEncrypted ? 'encryptedTxs' : 'txs'
|
|
|
|
const accounts = rootGetters['encryptedNote/accounts']
|
|
|
|
const tx = {
|
|
txHash,
|
|
type: 'Deposit',
|
|
note,
|
|
amount,
|
|
storeType,
|
|
prefix,
|
|
netId,
|
|
timestamp,
|
|
index,
|
|
nullifierHex,
|
|
commitmentHex,
|
|
currency
|
|
}
|
|
console.log('tx', tx)
|
|
|
|
if (isEncrypted) {
|
|
tx.note = params[2]
|
|
tx.owner = isAddress(accounts.encrypt) ? accounts.encrypt : ''
|
|
tx.backupAccount = isAddress(accounts.backup) ? accounts.backup : ''
|
|
}
|
|
|
|
commit('txHashKeeper/SAVE_TX_HASH', tx, { root: true })
|
|
} catch (e) {
|
|
console.error('sendDeposit', e)
|
|
return false
|
|
}
|
|
},
|
|
async checkSpentEventFromNullifier({ getters, dispatch }, parsedNote) {
|
|
try {
|
|
const isSpent = await dispatch('loadEvent', {
|
|
note: parsedNote,
|
|
eventName: 'nullifierHash',
|
|
type: eventsType.WITHDRAWAL,
|
|
methodName: 'getAllWithdrawals',
|
|
eventToFind: parsedNote.nullifierHex
|
|
})
|
|
|
|
return Boolean(isSpent)
|
|
} catch (err) {
|
|
console.error(`Method checkSpentEventFromNullifier has error: ${err.message}`)
|
|
}
|
|
},
|
|
async checkRoot({ getters }, { root, parsedNote }) {
|
|
const contractInstance = getters.instanceContract(parsedNote)
|
|
|
|
const isKnownRoot = await contractInstance.methods.isKnownRoot(root).call()
|
|
|
|
if (!isKnownRoot) {
|
|
throw new Error(this.app.i18n.t('invalidRoot'))
|
|
}
|
|
},
|
|
async buildTree({ dispatch }, { currency, amount, netId, commitmentHex }) {
|
|
const treeInstanceName = `${currency}_${amount}`
|
|
const params = { netId, amount, currency }
|
|
|
|
const treeService = treesInterface.getService({
|
|
...params,
|
|
commitment: commitmentHex,
|
|
instanceName: treeInstanceName
|
|
})
|
|
|
|
const [cachedTree, eventsData] = await Promise.all([
|
|
treeService.getTree(),
|
|
dispatch('updateEvents', { ...params, type: eventsType.DEPOSIT })
|
|
])
|
|
|
|
const commitments = eventsData.events.map((el) => el.commitment.toString(10))
|
|
|
|
let tree = cachedTree
|
|
if (tree) {
|
|
const newLeaves = commitments.slice(tree.elements.length)
|
|
tree.bulkInsert(newLeaves)
|
|
} else {
|
|
console.log('events', eventsData)
|
|
checkCommitments(eventsData.events)
|
|
tree = treeService.createTree({ events: commitments })
|
|
}
|
|
|
|
const root = toFixedHex(tree.root)
|
|
await dispatch('checkRoot', { root, parsedNote: params })
|
|
|
|
await treeService.saveTree({ tree })
|
|
|
|
return { tree, root }
|
|
},
|
|
async createSnarkProof(
|
|
{ rootGetters, rootState, state, getters },
|
|
{ root, note, tree, recipient, leafIndex }
|
|
) {
|
|
const { pathElements, pathIndices } = tree.path(leafIndex)
|
|
console.log('pathElements, pathIndices', pathElements, pathIndices)
|
|
|
|
const nativeCurrency = rootGetters['metamask/nativeCurrency']
|
|
const withdrawType = state.withdrawType
|
|
|
|
let relayer = BigInt(recipient)
|
|
let fee = BigInt(0)
|
|
let refund = BigInt(0)
|
|
|
|
if (withdrawType === 'relayer') {
|
|
let totalRelayerFee = getters.relayerFee
|
|
relayer = BigInt(rootState.relayer.selectedRelayer.address)
|
|
|
|
if (note.currency !== nativeCurrency) {
|
|
refund = BigInt(state.ethToReceive.toString())
|
|
totalRelayerFee = totalRelayerFee.add(getters.ethToReceiveInToken)
|
|
}
|
|
|
|
fee = BigInt(totalRelayerFee.toString())
|
|
}
|
|
|
|
const input = {
|
|
// public
|
|
fee,
|
|
root,
|
|
refund,
|
|
relayer,
|
|
recipient: BigInt(recipient),
|
|
nullifierHash: note.nullifierHash,
|
|
// private
|
|
pathIndices,
|
|
pathElements,
|
|
secret: note.secret,
|
|
nullifier: note.nullifier
|
|
}
|
|
|
|
const { circuit, provingKey } = await getTornadoKeys()
|
|
|
|
if (!groth16) {
|
|
groth16 = await buildGroth16()
|
|
}
|
|
|
|
console.log('Start generating SNARK proof', input)
|
|
console.time('SNARK proof time')
|
|
const proofData = await websnarkUtils.genWitnessAndProve(groth16, input, circuit, provingKey)
|
|
const { proof } = websnarkUtils.toSolidityInput(proofData)
|
|
|
|
const args = [
|
|
toFixedHex(input.root),
|
|
toFixedHex(input.nullifierHash),
|
|
toFixedHex(input.recipient, 20),
|
|
toFixedHex(input.relayer, 20),
|
|
toFixedHex(input.fee),
|
|
toFixedHex(input.refund)
|
|
]
|
|
return { args, proof }
|
|
},
|
|
async prepareWithdraw({ dispatch, getters, commit }, { note, recipient }) {
|
|
commit('REMOVE_PROOF', { note })
|
|
try {
|
|
const parsedNote = parseNote(note)
|
|
|
|
const { tree, root } = await dispatch('buildTree', parsedNote)
|
|
|
|
const isSpent = await dispatch('checkSpentEventFromNullifier', parsedNote)
|
|
|
|
if (isSpent) {
|
|
throw new Error(this.app.i18n.t('noteHasBeenSpent'))
|
|
}
|
|
|
|
const { proof, args } = await dispatch('createSnarkProof', {
|
|
root,
|
|
tree,
|
|
recipient,
|
|
note: parsedNote,
|
|
leafIndex: tree.indexOf(parsedNote.commitmentHex)
|
|
})
|
|
console.timeEnd('SNARK proof time')
|
|
commit('SAVE_PROOF', { proof, args, note })
|
|
} catch (e) {
|
|
console.error('prepareWithdraw', e)
|
|
throw new Error(e.message)
|
|
}
|
|
},
|
|
async withdraw({ state, rootState, dispatch, getters }, { note }) {
|
|
try {
|
|
const [, currency, amount, netId] = note.split('-')
|
|
const config = networkConfig[`netId${netId}`]
|
|
const { proof, args } = state.notes[note]
|
|
const { ethAccount } = rootState.metamask
|
|
|
|
const contractInstance = getters.tornadoProxyContract({ netId })
|
|
|
|
const instance = config.tokens[currency].instanceAddress[amount]
|
|
const params = [instance, proof, ...args]
|
|
|
|
const data = contractInstance.methods.withdraw(...params).encodeABI()
|
|
const gas = await contractInstance.methods
|
|
.withdraw(...params)
|
|
.estimateGas({ from: ethAccount, value: args[5] })
|
|
|
|
const callParams = {
|
|
method: 'eth_sendTransaction',
|
|
params: {
|
|
data,
|
|
value: args[5],
|
|
to: contractInstance._address,
|
|
gas: numberToHex(gas + 200000)
|
|
},
|
|
watcherParams: {
|
|
title: { path: 'withdrawing', amount, currency },
|
|
successTitle: {
|
|
amount,
|
|
currency,
|
|
path: 'withdrawnValue'
|
|
},
|
|
onSuccess: (txHash) => {
|
|
dispatch('txHashKeeper/updateDeposit', { amount, currency, netId, note, txHash }, { root: true })
|
|
}
|
|
},
|
|
isAwait: false,
|
|
isSaving: false
|
|
}
|
|
|
|
await dispatch('metamask/sendTransaction', callParams, { root: true })
|
|
} catch (e) {
|
|
console.error(e)
|
|
throw new Error(e.message)
|
|
}
|
|
},
|
|
loadAllNotesData({ dispatch, rootGetters }) {
|
|
const { tokens } = rootGetters['metamask/networkConfig']
|
|
|
|
for (const [currency, { instanceAddress }] of Object.entries(tokens)) {
|
|
for (const amount in instanceAddress) {
|
|
if (instanceAddress[amount]) {
|
|
dispatch('updateLastIndex', { currency, amount })
|
|
}
|
|
}
|
|
}
|
|
},
|
|
async updateLastIndex({ dispatch, commit, rootState }, { currency, amount }) {
|
|
const netId = rootState.metamask.netId
|
|
const { nextDepositIndex, anonymitySet } = await dispatch('getLastDepositIndex', {
|
|
currency,
|
|
netId,
|
|
amount
|
|
})
|
|
|
|
commit('SAVE_LAST_INDEX', {
|
|
amount,
|
|
currency,
|
|
anonymitySet,
|
|
nextDepositIndex
|
|
})
|
|
},
|
|
async loadEvent({ getters, rootGetters }, { note, type, eventName, eventToFind }) {
|
|
try {
|
|
const eventService = getters.eventsInterface.getService(note)
|
|
|
|
const foundEvent = await eventService.findEvent({ eventName, eventToFind, type })
|
|
|
|
return foundEvent
|
|
} catch (err) {
|
|
console.error(`Method loadEvent has error: ${err.message}`)
|
|
}
|
|
},
|
|
async loadDepositEvent({ state, dispatch }, { withdrawNote }) {
|
|
try {
|
|
const note = parseNote(withdrawNote)
|
|
|
|
const lastEvent = await dispatch('loadEvent', {
|
|
note,
|
|
eventName: 'commitment',
|
|
type: eventsType.DEPOSIT,
|
|
methodName: 'getAllDeposits',
|
|
eventToFind: note.commitmentHex
|
|
})
|
|
|
|
if (lastEvent) {
|
|
const { nextDepositIndex } = state.statistic[note.currency][note.amount]
|
|
const depositsPast = nextDepositIndex - lastEvent.leafIndex - 1
|
|
|
|
const isSpent = await dispatch('checkSpentEventFromNullifier', note)
|
|
|
|
return {
|
|
isSpent,
|
|
depositsPast,
|
|
timestamp: lastEvent.timestamp,
|
|
leafIndex: lastEvent.leafIndex,
|
|
txHash: lastEvent.transactionHash,
|
|
depositBlock: lastEvent.blockNumber
|
|
}
|
|
}
|
|
} catch (err) {
|
|
console.error(`Method loadDepositEvent has error: ${err.message}`)
|
|
}
|
|
},
|
|
async loadWithdrawalEvent({ dispatch }, { withdrawNote }) {
|
|
try {
|
|
const note = parseNote(withdrawNote)
|
|
|
|
const lastEvent = await dispatch('loadEvent', {
|
|
note,
|
|
eventName: 'nullifierHash',
|
|
type: eventsType.WITHDRAWAL,
|
|
methodName: 'getAllWithdrawals',
|
|
eventToFind: note.nullifierHex
|
|
})
|
|
|
|
if (lastEvent) {
|
|
return {
|
|
to: lastEvent.to,
|
|
fee: lastEvent.fee,
|
|
txHash: lastEvent.transactionHash,
|
|
blockNumber: lastEvent.blockNumber
|
|
}
|
|
}
|
|
} catch (err) {
|
|
console.error(`Method loadWithdrawalEvent has error: ${err.message}`)
|
|
}
|
|
},
|
|
async loadWithdrawalData({ commit, dispatch, rootGetters }, { withdrawNote }) {
|
|
try {
|
|
const toDecimals = rootGetters['token/toDecimals']
|
|
|
|
const { currency, amount } = parseNote(withdrawNote)
|
|
const { fee, txHash, blockNumber, to } = await dispatch('loadWithdrawalEvent', { withdrawNote })
|
|
|
|
const decimals = rootGetters['metamask/networkConfig'].tokens[currency].decimals
|
|
const withdrawalAmount = toBN(rootGetters['token/fromDecimals'](amount.toString(), decimals)).sub(
|
|
toBN(fee)
|
|
)
|
|
|
|
return {
|
|
to,
|
|
txHash,
|
|
withdrawalBlock: blockNumber,
|
|
fee: toDecimals(fee, decimals, 4),
|
|
amount: toDecimals(withdrawalAmount, decimals, 4)
|
|
}
|
|
} catch (e) {
|
|
console.error(`Method loadWithdrawalData has error: ${e}`)
|
|
}
|
|
},
|
|
calculateEthToReceive({ commit, state, rootGetters }, { currency }) {
|
|
const gasLimit = rootGetters['metamask/networkConfig'].tokens[currency].gasLimit
|
|
const gasPrice = toBN(rootGetters['gasPrices/gasPrice'])
|
|
|
|
const ethToReceive = gasPrice
|
|
.mul(toBN(gasLimit))
|
|
.mul(toBN(2))
|
|
.toString()
|
|
return ethToReceive
|
|
},
|
|
async setDefaultEthToReceive({ dispatch, commit }, { currency }) {
|
|
const ethToReceive = await dispatch('calculateEthToReceive', { currency })
|
|
commit('SAVE_ETH_TO_RECEIVE', { ethToReceive })
|
|
commit('SAVE_DEFAULT_ETH_TO_RECEIVE', { ethToReceive })
|
|
},
|
|
setNativeCurrency({ commit }, { netId }) {
|
|
const currency = networkConfig[`netId${netId}`].nativeCurrency
|
|
const amounts = Object.keys(networkConfig[`netId${netId}`].tokens[currency].instanceAddress)
|
|
const amount = Math.min(...amounts)
|
|
|
|
commit('SET_SELECTED_INSTANCE', { currency, amount })
|
|
commit('SET_SELECTED_STATISTIC', { currency, amount })
|
|
},
|
|
async aggregateMulticall({ rootGetters, getters }, { params }) {
|
|
try {
|
|
const netId = rootGetters['metamask/netId']
|
|
const multicallContract = getters.multicallContract({ netId })
|
|
|
|
const result = await multicallContract.methods.aggregate(params).call()
|
|
|
|
return result.returnData
|
|
} catch (err) {
|
|
console.log('err', err.message)
|
|
}
|
|
}
|
|
}
|
|
export default {
|
|
namespaced: true,
|
|
state,
|
|
getters,
|
|
mutations,
|
|
actions
|
|
}
|