classic-ui/updateEncryptedEvents.js
Danil Kovtonyuk 44f31f8b9f
init
2022-04-22 13:14:19 +10:00

120 lines
3.0 KiB
JavaScript

const fs = require('fs')
const Web3 = require('web3')
const Jszip = require('jszip')
const networkConfig = require('./networkConfig')
const MAIN_NET_RPC_URL = networkConfig.netId1.rpcUrls.Infura.url
const GOERLI_RPC_URL = networkConfig.netId5.rpcUrls.Alchemy.url
const ABI = require('./abis/TornadoProxy.abi.json')
const jszip = new Jszip()
function getWeb3(netId) {
const rpc = Number(netId) === 1 ? MAIN_NET_RPC_URL : GOERLI_RPC_URL
const provider = new Web3.providers.HttpProvider(rpc)
const web3 = new Web3(provider)
return web3
}
async function download({ name, contentType }) {
const path = `${name}.zip`
const data = fs.readFileSync(path)
const zip = await jszip.loadAsync(data)
const file = zip.file(path.replace('./static/events/', '').slice(0, -4))
const content = await file.async(contentType)
return content
}
async function loadCachedEvents(file) {
try {
const module = await download({
contentType: 'string',
name: file
})
if (module) {
const events = JSON.parse(module)
const lastEvent = events[events.length - 1]
const lastBlock = lastEvent.block || lastEvent.blockNumber
return {
events,
lastBlock
}
}
} catch (err) {
throw new Error(`Method loadCachedEvents has error: ${err.message}`)
}
}
async function saveEncryptedNote(netId) {
const web3 = getWeb3(netId)
const {
'tornado-proxy.contract.tornadocash.eth': tornadoProxy,
'tornado-router.contract.tornadocash.eth': tornadoRouter
} = networkConfig[`netId${netId}`]
const contractAddress = tornadoRouter || tornadoProxy
const contract = new web3.eth.Contract(ABI, contractAddress)
const currentBlockNumber = await web3.eth.getBlockNumber()
const file = `./static/events/encrypted_notes_${netId}.json`
let encryptedEvents = []
const cachedEvents = await loadCachedEvents(file)
console.log('cachedEvents', cachedEvents.events.length)
const startBlock = cachedEvents.lastBlock + 1
const NUMBER_PARTS = 20
const part = parseInt((currentBlockNumber - startBlock) / NUMBER_PARTS)
let fromBlock = startBlock
let toBlock = startBlock + part
for (let i = 0; i <= NUMBER_PARTS; i++) {
const partOfEvents = await contract.getPastEvents('EncryptedNote', {
toBlock,
fromBlock
})
if (partOfEvents) {
encryptedEvents = encryptedEvents.concat(partOfEvents)
}
fromBlock = toBlock
toBlock += part
}
console.log('Encrypted note', netId, encryptedEvents.length)
encryptedEvents = encryptedEvents
.filter((e) => e.returnValues.encryptedNote)
.map((item) => {
return {
txHash: item.transactionHash,
blockNumber: Number(item.blockNumber),
encryptedNote: item.returnValues.encryptedNote
}
})
const eventsJson = JSON.stringify(cachedEvents.events.concat(encryptedEvents), null, 2) + '\n'
fs.writeFileSync(file, eventsJson)
}
async function main() {
const NETWORKS = [1]
for await (const netId of NETWORKS) {
await saveEncryptedNote(netId)
}
}
main()