tornadocash/tornado-relayer
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wip. relayer job flow. server api

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smart_ex 2022-05-18 18:18:10 +10:00
parent 8e3f20f76c
commit 8bc5b7be9e
29 changed files with 485 additions and 210 deletions
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3
.eslintrc.json
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@ -6,7 +6,8 @@
},
"extends": [
"eslint:recommended",
"plugin:@typescript-eslint/recommended"
"plugin:@typescript-eslint/recommended",
"plugin:security/recommended"
],
"parser": "@typescript-eslint/parser",
"parserOptions": {

1
.nvmrc Normal file
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@ -0,0 +1 @@
v16.15

15
package.json
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@ -1,10 +1,10 @@
{
"name": "relay",
"version": "4.1.3",
"version": "5.0.0",
"description": "Relayer for Tornado.cash privacy solution. https://tornado.cash",
"scripts": {
"dev:app": "nodemon --watch './src/**/*.ts' --exec ts-node src/api/index.ts",
"server": "node src/api/server.ts",
"dev:app": "nodemon --watch './src/**/*.ts' --exec ts-node src/app/index.ts",
"server": "node src/app/server.ts",
"worker": "node src/worker",
"treeWatcher": "node src/treeWatcher",
"priceWatcher": "node src/priceWatcher",
@ -19,14 +19,15 @@
"author": "tornado.cash",
"license": "MIT",
"dependencies": {
"@fastify/cors": "^7.0.0",
"@fastify/helmet": "^8.0.1",
"@fastify/sensible": "^4.1.0",
"bullmq": "^1.80.6",
"dotenv": "^8.2.0",
"eth-ens-namehash": "^2.0.8",
"ethers": "^5.6.4",
"fastify": "^3.28.0",
"fastify-cors": "^6.0.3",
"fixed-merkle-tree": "^0.7.3",
"gas-price-oracle": "^0.3.5",
"gas-price-oracle": "^0.4.6",
"ioredis": "^4.14.1",
"json-schema-to-ts": "^2.2.0",
"node-fetch": "^2.6.7",
@ -40,12 +41,14 @@
"devDependencies": {
"@typechain/ethers-v5": "^10.0.0",
"@types/ioredis": "^4.28.10",
"@types/uuid": "^8.3.4",
"@typescript-eslint/eslint-plugin": "^5.20.0",
"@typescript-eslint/parser": "^5.20.0",
"chai": "^4.2.0",
"eslint": "^8.14.0",
"eslint-config-prettier": "^6.12.0",
"eslint-plugin-prettier": "^3.1.4",
"eslint-plugin-security": "^1.5.0",
"mocha": "^8.1.3",
"nodemon": "^2.0.15",
"ts-node": "^10.7.0",

54
src/api/routes.ts
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@ -1,54 +0,0 @@
import { FastifyInstance } from 'fastify';
import { statusSchema, withdrawBodySchema } from './schema';
import { FromSchema } from 'json-schema-to-ts';
import { rewardAccount, tornadoServiceFee } from '../config';
import { version } from '../../package.json';
import { configService } from '../services';
export function mainHandler(server: FastifyInstance, options, next) {
server.get('/',
async (req, res) => {
res.send('hello fellows');
});
server.get('/status',
{ schema: statusSchema },
async (req, res) => {
server.log.info(req.method, 'status');
res.send({
rewardAccount,
instances: configService.instances,
netId: configService.netId,
ethPrices: {
dai: '488750716084282',
cdai: '10750196909100',
usdc: '488744421966526',
usdt: '486409579105158',
wbtc: '14586361452511510343',
torn: '18624781058055820',
},
tornadoServiceFee,
miningServiceFee: 0,
version,
health: {
status: true,
error: '',
},
currentQueue: 0,
});
});
next();
}
export function relayerHandler(server: FastifyInstance, options, next) {
server.get('/jobs/:id',
async (req, res) => {
res.send({});
});
server.post<{ Body: FromSchema<typeof withdrawBodySchema> }>('/tornadoWithdraw',
async (req, res) => {
console.log(req.body);
res.send({});
});
next();
}

13
src/api/index.ts → src/app/index.ts
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@ -2,14 +2,23 @@ import createServer from './server';
import { utils } from 'ethers';
import { port, rewardAccount } from '../config';
import { version } from '../../package.json';
import { configService, getJobService } from '../services';
if (!utils.isAddress(rewardAccount)) {
throw new Error('No REWARD_ACCOUNT specified');
}
const server = createServer();
server.listen(port, '0.0.0.0', (err, address) => {
server.listen(port, '0.0.0.0', async (err, address) => {
if (err) throw err;
await configService.init();
await getJobService().setupRepeatableJobs();
console.log(`Relayer ${version} started on port ${address}`);
});
process
.on('uncaughtException', (e) => {
console.log('uncaughtException', e);
process.exit(1);
});

23
src/api/plugins/validator.ts → src/app/plugins/validator.ts
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@ -2,6 +2,7 @@ import Ajv from 'ajv';
import fp from 'fastify-plugin';
import { rewardAccount } from '../../config';
import { getAddress, isAddress } from 'ethers/lib/utils';
import { configService } from '../../services';
export default fp(async server => {
const ajv = new Ajv();
@ -17,16 +18,16 @@ export default fp(async server => {
errors: true,
});
// ajv.addKeyword('isKnownContract', {
// validate: (schema, data) => {
// try {
// return !!getInstance(data);
// } catch (e) {
// return false;
// }
// },
// errors: true,
// });
ajv.addKeyword('isKnownContract', {
validate: (schema, data) => {
try {
return !!configService.getInstance(data);
} catch (e) {
return false;
}
},
errors: true,
});
ajv.addKeyword('isFeeRecipient', {
validate: (schema, data) => {
@ -39,7 +40,7 @@ export default fp(async server => {
errors: true,
});
server.setValidatorCompiler(({ schema, method, url, httpPart }) => {
server.setValidatorCompiler(({ schema }) => {
return ajv.compile(schema);
});
console.log('validator plugin registered');

61
src/app/routes.ts Normal file
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@ -0,0 +1,61 @@
import { FastifyInstance } from 'fastify';
import { jobsSchema, statusSchema, withdrawBodySchema, withdrawSchema } from './schema';
import { FromSchema } from 'json-schema-to-ts';
import { rewardAccount, tornadoServiceFee } from '../config';
import { version } from '../../package.json';
import { configService, getJobService, getPriceService } from '../services';
import { JobType } from '../types';
const priceService = getPriceService();
const jobService = getJobService();
export function mainHandler(server: FastifyInstance, options, next) {
server.get('/',
async (req, res) => {
res.type('text/html')
.send('<h1>This is <a href=https://tornado.cash>tornado.cash</a> Relayer service.' +
' Check the <a href=/v1/status>/status</a> for settings</h1>');
});
server.get('/status',
{ schema: statusSchema },
async (req, res) => {
const ethPrices = await priceService.getPrices();
const currentQueue = await jobService.getQueueCount();
console.log(currentQueue);
res.send({
rewardAccount,
instances: configService.instances,
netId: configService.netId,
ethPrices,
tornadoServiceFee,
miningServiceFee: 0,
version,
health: {
status: true,
error: '',
},
currentQueue,
});
});
next();
}
export function relayerHandler(server: FastifyInstance, options, next) {
server.get<{ Params: { id: string } }>('/jobs/:id',
{ schema: jobsSchema },
async (req, res) => {
const job = await jobService.getJob(req.params.id);
if (!job) return server.httpErrors.notFound();
res.send({ ...job.data, failedReason: job.failedReason });
});
server.post<{ Body: FromSchema<typeof withdrawBodySchema> }>('/tornadoWithdraw',
{ schema: withdrawSchema },
async (req, res) => {
console.log(req.body);
const id = await jobService.postJob(JobType.TORNADO_WITHDRAW, req.body);
res.send({ id });
});
next();
}

47
src/api/schema.ts → src/app/schema.ts
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@ -1,10 +1,23 @@
const addressType = { type: 'string', pattern: '^0x[a-fA-F0-9]{40}$', isAddress: true } as const;
const addressType = {
type: 'string',
pattern: '^0x[a-fA-F0-9]{40}$',
isAddress: true,
} as const;
const proofType = { type: 'string', pattern: '^0x[a-fA-F0-9]{512}$' } as const;
// const encryptedAccountType = { type: 'string', pattern: '^0x[a-fA-F0-9]{392}$' } as const;
const bytes32Type = { type: 'string', pattern: '^0x[a-fA-F0-9]{64}$' } as const;
const instanceType = { ...addressType, isKnownContract: true } as const;
const relayerType = { ...addressType, isFeeRecipient: true } as const;
export const idParamsSchema = {
type: 'object',
properties: {
id: { type: 'string', format: 'uuid' },
},
required: ['id'],
additionalProperties: false,
} as const;
export const withdrawBodySchema = {
type: 'object',
properties: {
@ -14,22 +27,40 @@ export const withdrawBodySchema = {
type: 'array',
maxItems: 6,
minItems: 6,
items: [bytes32Type, bytes32Type, addressType, relayerType, bytes32Type, bytes32Type],
items: [
bytes32Type,
bytes32Type,
addressType,
relayerType,
bytes32Type,
bytes32Type,
],
},
},
additionalProperties: false,
required: ['proof', 'contract', 'args'],
} as const;
export const jobsResponseSchema = {
...withdrawBodySchema,
properties: {
id: { type: 'string' },
status: { type: 'string' },
...withdrawBodySchema.properties,
failedReason: { type: 'string' },
},
} as const;
export const jobsSchema = {
params: idParamsSchema,
response: {
200: jobsResponseSchema,
},
};
export const withdrawSchema = {
body: withdrawBodySchema,
response: {
200: {
type: 'object',
properties: {
jobId: { type: 'string', format: 'uuid' },
},
},
200: idParamsSchema,
},
};
const statusResponseSchema = {

8
src/api/server.ts → src/app/server.ts
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@ -1,5 +1,8 @@
import fastify from 'fastify';
import cors from 'fastify-cors';
import cors from '@fastify/cors';
import fastifySensible from '@fastify/sensible';
import helmet from '@fastify/helmet';
import validator from './plugins/validator';
import { mainHandler, relayerHandler } from './routes';
@ -12,7 +15,10 @@ function createServer() {
});
server.register(cors);
server.register(validator);
server.register(helmet, { contentSecurityPolicy: false, frameguard: true });
server.register(fastifySensible);
server.register(mainHandler);
server.register(mainHandler, { prefix: '/v1' });
server.register(relayerHandler, { prefix: '/v1' });

8
src/config.ts
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@ -1,4 +1,4 @@
import { jobType } from './types';
import { JobType } from './types';
import tornConfig, { availableIds } from 'torn-token';
require('dotenv').config();
@ -22,10 +22,10 @@ export const rewardAccount = process.env.REWARD_ACCOUNT;
export const governanceAddress = '0x5efda50f22d34F262c29268506C5Fa42cB56A1Ce';
export const tornadoGoerliProxy = '0x454d870a72e29d5E5697f635128D18077BD04C60';
export const gasLimits = {
[jobType.TORNADO_WITHDRAW]: 390000,
[JobType.TORNADO_WITHDRAW]: 390000,
WITHDRAW_WITH_EXTRA: 700000,
[jobType.MINING_REWARD]: 455000,
[jobType.MINING_WITHDRAW]: 400000,
[JobType.MINING_REWARD]: 455000,
[JobType.MINING_WITHDRAW]: 400000,
};
export const minimumBalance = '1000000000000000000';
export const baseFeeReserve = Number(process.env.BASE_FEE_RESERVE_PERCENTAGE);

25
src/modules/EnsResolver.ts
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@ -1,25 +0,0 @@
import { Provider } from '@ethersproject/providers';
export default class EnsResolver {
addresses: Map<string, string>;
provider: Provider;
constructor(provider: Provider) {
this.addresses = new Map<string, string>();
this.provider = provider;
}
async resolve(domain: string) {
try {
if (!this.addresses.has(domain)) {
const resolved = await this.provider.resolveName(domain);
this.addresses.set(domain, resolved);
}
return this.addresses.get(domain);
} catch (e) {
console.log(e);
return null;
}
}
}

32
src/modules/contracts.ts
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@ -1,31 +1,33 @@
import {
AggregatorAbi__factory,
MulticallAbi__factory,
OffchainOracleAbi__factory, ProxyLightABI__factory,
OffchainOracleAbi__factory,
ProxyLightABI__factory,
TornadoProxyABI__factory,
} from '../../contracts';
import { providers } from 'ethers';
import { aggregatorAddress, httpRpcUrl, multiCallAddress, netId, offchainOracleAddress } from '../config';
import { configService } from '../services';
import { httpRpcUrl, multiCallAddress, netId, offchainOracleAddress, oracleRpcUrl } from '../config';
export function getProvider() {
return new providers.StaticJsonRpcProvider(httpRpcUrl, netId);
export function getProvider(isStatic = true, rpcUrl?: string) {
if (isStatic) return new providers.StaticJsonRpcProvider(rpcUrl || httpRpcUrl, netId);
else return new providers.JsonRpcProvider(rpcUrl || httpRpcUrl, netId);
}
export const getTornadoProxyContract = () => {
return TornadoProxyABI__factory.connect(configService.proxyAddress, getProvider());
export const getTornadoProxyContract = (proxyAddress: string) => {
return TornadoProxyABI__factory.connect(proxyAddress, getProvider());
};
export const getTornadoProxyLightContract = () => {
return ProxyLightABI__factory.connect(configService.proxyAddress, getProvider());
};
export const getAggregatorContract = () => {
return AggregatorAbi__factory.connect(aggregatorAddress, getProvider());
export const getTornadoProxyLightContract = (proxyAddress: string) => {
return ProxyLightABI__factory.connect(proxyAddress, getProvider());
};
export const getOffchainOracleContract = () => {
return OffchainOracleAbi__factory.connect(offchainOracleAddress, getProvider());
return OffchainOracleAbi__factory.connect(offchainOracleAddress, getProvider(true, oracleRpcUrl));
};
export const getMultiCallContract = () => {
return MulticallAbi__factory.connect(multiCallAddress, getProvider());
return MulticallAbi__factory.connect(multiCallAddress, getProvider(true, oracleRpcUrl));
};
// export const getAggregatorContract = () => {
// return AggregatorAbi__factory.connect(aggregatorAddress, getProvider());
// };

19
src/modules/ensResolver.ts Normal file
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@ -0,0 +1,19 @@
import { getProvider } from './contracts';
const addresses = new Map<string, string>();
const provider = getProvider();
async function resolve(domain: string) {
try {
if (!addresses.has(domain)) {
const resolved = await provider.resolveName(domain);
addresses.set(domain, resolved);
}
return addresses.get(domain);
} catch (e) {
console.log(e);
return null;
}
}
export { resolve };

3
src/modules/index.ts
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@ -1,3 +1,2 @@
export { default as redis } from './redis';
export { default as EnsResolver } from './EnsResolver';
export { default as readJSON } from './readJSON';
export { resolve } from './ensResolver';

12
src/modules/readJSON.ts
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@ -1,12 +0,0 @@
import fs from 'fs/promises';
import path from 'path';
export default async (pathToFile: string) => {
try {
const file = await fs.readFile(path.resolve(__dirname, pathToFile), { encoding: 'utf8' });
return JSON.parse(file);
} catch (e) {
console.log(e);
return null;
}
};

4
src/modules/redis.ts
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@ -4,7 +4,9 @@ import { redisUrl } from '../config';
const redisClient = new Redis(redisUrl, { maxRetriesPerRequest: null });
const redisSubscriber = new Redis(redisUrl, { maxRetriesPerRequest: null });
export const getClient = () => redisClient;
export const getClient = () => redisClient.on('error', (error) => {
throw error;
});
export const getSubscriber = () => redisSubscriber;
export default { getClient, getSubscriber };

50
src/queue/index.ts
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@ -1,14 +1,48 @@
import { Queue, Worker } from 'bullmq';
import { Job, Processor, Queue, Worker } from 'bullmq';
import { redis } from '../modules';
import { priceProcessor } from './priceProcessor';
import { Token } from '../types';
import { netId } from '../config';
import { JobStatus, JobType, Token } from '../types';
import { relayerProcessor } from './relayerProcessor';
import { WithdrawalData } from '../services/TxService';
import { schedulerProcessor } from './schedulerProcessor';
import { configService } from '../services';
import { BigNumber } from 'ethers';
const connection = redis.getClient();
export const priceQueue = new Queue<Token[], any>('price', { connection });
export const getPriceWorker = () => new Worker(priceQueue.name, priceProcessor, { connection });
export type SchedulerJobProcessors = {
updatePrices: Processor,
checkBalance: Processor
}
type SchedulerJobName = keyof SchedulerJobProcessors
type SchedulerJobData = Token[] | null
type SchedulerJobReturn = Record<string, string> | { balance: BigNumber, isEnought: boolean }
type RelayerJobData = WithdrawalData & { id: string, status: JobStatus, type: JobType }
type RelayerJobReturn = void
// export interface SchedulerProcessor {
// <U extends SchedulerJobName>(job: Job<SchedulerJobData, SchedulerJobReturn, U>): SchedulerJobProcessors[U];
//
// }
export interface RelayerProcessor {
(job: Job<RelayerJobData, RelayerJobReturn, JobType>): Promise<void>;
}
export const schedulerQueue = new Queue<Token[], any, SchedulerJobName>('scheduler', {
connection,
defaultJobOptions: {
removeOnFail: 10,
removeOnComplete: 10,
},
});
export const getSchedulerWorker = () => new Worker<SchedulerJobData, SchedulerJobReturn, SchedulerJobName>(schedulerQueue.name, (job) => schedulerProcessor(job), {
connection,
concurrency: 3,
});
export const relayerQueue = new Queue<RelayerJobData, RelayerJobReturn, JobType>(configService.queueName, { connection });
export const getRelayerWorker = () => new Worker<RelayerJobData, RelayerJobReturn, JobType>(relayerQueue.name, relayerProcessor, { connection });
export const relayerQueue = new Queue(`relayer_${netId}`, { connection });
export const getRelayerWorker = () => new Worker(relayerQueue.name, relayerProcessor, { connection });

8
src/queue/priceProcessor.ts
View File

@ -1,8 +0,0 @@
import { priceService } from '../services';
import { Job } from 'bullmq';
export const priceProcessor = async (job: Job) => {
const prices = await priceService.fetchPrices(job.data);
console.log(job.name, prices);
return prices;
};

6
src/queue/relayerProcessor.ts
View File

@ -1,6 +1,6 @@
import { Job } from 'bullmq';
import { RelayerProcessor } from './index';
export const relayerProcessor: RelayerProcessor = async (job) => {
export const relayerProcessor = async (job: Job) => {
console.log(job.data);
return {};
};

15
src/queue/schedulerProcessor.ts Normal file
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@ -0,0 +1,15 @@
import { configService, getPriceService } from '../services';
import { Processor } from 'bullmq';
export const schedulerProcessor: Processor = async (job) => {
switch (job.name) {
case 'updatePrices': {
const result = await getPriceService().fetchPrices(job.data);
return result;
}
case 'checkBalance': {
console.log(job.data);
return await configService.getBalance();
}
}
};

21
src/queue/worker.ts
View File

@ -1,11 +1,22 @@
import { getPriceWorker, getRelayerWorker } from './';
import { getRelayerWorker, getSchedulerWorker } from './';
import { configService, getPriceService } from '../services';
export default async () => {
const priceWorker = getPriceWorker();
priceWorker.on('completed', (job, result) => console.log(result));
priceWorker.on('failed', (job, error) => console.log(error));
export const schedulerWorker = async () => {
await configService.init();
const priceService = getPriceService();
const schedulerWorkerWorker = getSchedulerWorker();
console.log('price worker');
schedulerWorkerWorker.on('active', () => console.log('worker active'));
schedulerWorkerWorker.on('completed', async (job, result) => {
if (job.name === 'updatePrices') {
// await priceService.savePrices(result);
}
});
schedulerWorkerWorker.on('failed', (job, error) => console.log(error));
};
export const relayerWorker = async () => {
const relayerWorker = getRelayerWorker();
relayerWorker.on('completed', (job, result) => console.log(result));
relayerWorker.on('failed', (job, error) => console.log(error));

86
src/services/ConfigService.ts
View File

@ -1,18 +1,28 @@
import { httpRpcUrl, instances, netId, privateKey, torn, tornadoGoerliProxy, tornToken } from '../config';
import {
httpRpcUrl,
instances,
minimumBalance,
netId,
privateKey,
torn,
tornadoGoerliProxy,
tornToken,
} from '../config';
import { Token } from '../types';
import { getProvider, getTornadoProxyContract, getTornadoProxyLightContract } from '../modules/contracts';
import { EnsResolver } from '../modules';
import { resolve } from '../modules';
import { ProxyLightABI, TornadoProxyABI } from '../../contracts';
import { availableIds, netIds, NetInstances } from '../../../torn-token';
import { getAddress } from 'ethers/lib/utils';
import { providers, Wallet } from 'ethers';
const resolver = new EnsResolver(getProvider());
type relayerQueueName = `relayer_${availableIds}`
export class ConfigService {
static instance: ConfigService;
netId: availableIds;
netIdKey: netIds;
queueName: relayerQueueName;
tokens: Token[];
privateKey: string;
rpcUrl: string;
@ -21,14 +31,32 @@ export class ConfigService {
addressMap = new Map<string, InstanceProps>();
isLightMode: boolean;
instances: NetInstances;
provider: providers.StaticJsonRpcProvider;
wallet: Wallet;
constructor() {
this.netId = netId;
this.netIdKey = `netId${this.netId}`;
this.queueName = `relayer_${this.netId}`;
this.isLightMode = ![1, 5].includes(netId);
this.privateKey = privateKey;
this.rpcUrl = httpRpcUrl;
this.instances = instances[this.netIdKey];
this.provider = getProvider(false);
this.wallet = new Wallet(this.privateKey, this.provider);
this._fillInstanceMap();
}
get proxyContract(): TornadoProxyABI | ProxyLightABI {
return this._proxyContract;
}
get proxyAddress(): string {
return this._proxyAddress;
}
private _fillInstanceMap() {
if (!this.instances) throw new Error('config mismatch, check your environment variables');
for (const [currency, { instanceAddress, symbol, decimals }] of Object.entries(this.instances)) {
Object.entries(instanceAddress).forEach(([amount, address]) => {
if (address) {
@ -44,30 +72,36 @@ export class ConfigService {
}
}
get proxyContract(): TornadoProxyABI | ProxyLightABI {
return this._proxyContract;
}
get proxyAddress(): string {
return this._proxyAddress;
private async _checkNetwork() {
try {
await this.provider.getNetwork();
} catch (e) {
throw new Error(`Could not detect network, check your rpc url: ${this.rpcUrl}`);
}
}
async init() {
if (this.isLightMode) {
this._proxyAddress = await resolver.resolve(torn.tornadoProxyLight.address);
this._proxyContract = getTornadoProxyLightContract();
} else {
if (this.netIdKey === 'netId1') {
this._proxyAddress = await resolver.resolve(torn.tornadoRouter.address);
try {
await this._checkNetwork();
if (this.isLightMode) {
this._proxyAddress = await resolve(torn.tornadoProxyLight.address);
this._proxyContract = getTornadoProxyLightContract(this._proxyAddress);
} else {
this._proxyAddress = tornadoGoerliProxy;
if (this.netId === 1) {
this._proxyAddress = await resolve(torn.tornadoRouter.address);
}
this._proxyContract = getTornadoProxyContract(this._proxyAddress);
this.tokens = [tornToken, ...Object.values(torn.instances['netId1'])]
.map<Token>(el => (el.tokenAddress && {
address: getAddress(el.tokenAddress),
...el,
})).filter(Boolean);
console.log(
`Configuration completed\n-- netId: ${this.netId}\n-- rpcUrl: ${this.rpcUrl}`);
}
this._proxyContract = getTornadoProxyContract();
this.tokens = [tornToken, ...Object.values(torn.instances['netId1'])]
.map<Token>(el => ({
address: getAddress(el.tokenAddress),
...el,
})).filter(e => e.address);
} catch (e) {
console.error(`${this.constructor.name} Error:`, e.message);
}
}
@ -75,7 +109,13 @@ export class ConfigService {
return this.addressMap.get(getAddress(address));
}
public static getServiceInstance(): ConfigService {
async getBalance() {
const balance = await this.wallet.getBalance();
const isEnougth = balance.gt(minimumBalance);
return { balance, isEnougth };
}
public static getServiceInstance() {
if (!ConfigService.instance) {
ConfigService.instance = new ConfigService();
}

70
src/services/JobService.ts Normal file
View File

@ -0,0 +1,70 @@
import { v4 } from 'uuid';
import { JobStatus, JobType } from '../types';
import { relayerQueue, schedulerQueue } from '../queue';
import { WithdrawalData } from './TxService';
import { getClient } from '../modules/redis';
import { Job } from 'bullmq';
import { configService } from './index';
export class JobService {
store: ReturnType<typeof getClient>;
constructor() {
this.store = getClient();
}
async postJob(type: JobType, data: WithdrawalData) {
const id = v4();
const job = await relayerQueue.add(
type,
{
id,
type,
status: JobStatus.QUEUED,
...data,
},
{},
);
this.save(job);
return id;
}
save(job: Job) {
return this.store.set(`job:${job.data.id}`, job.id);
}
async getJob(id: string) {
const key = 'job:' + id;
console.log(key);
const jobId = await this.store.get(key);
return await relayerQueue.getJob(jobId);
}
async getQueueCount() {
return await relayerQueue.getJobCountByTypes('active', 'waiting', 'delayed');
}
private async _clearSchedulerJobs() {
const jobs = await schedulerQueue.getJobs();
await Promise.all(jobs.map(job => schedulerQueue.remove(job.id)));
}
async setupRepeatableJobs() {
await this._clearSchedulerJobs();
await schedulerQueue.add('updatePrices', configService.tokens, {
repeat: {
every: 30000,
immediately: true,
},
});
await schedulerQueue.add('checkBalance', null, {
repeat: {
every: 30000,
immediately: true,
},
});
}
}
export default () => new JobService();

14
src/services/PriceService.ts
View File

@ -47,9 +47,17 @@ export class PriceService {
return prices;
}
async getPrice(symbol: string) {
return await redisClient.hget('prices', symbol);
async getPrice(currency: string) {
return await redisClient.hget('prices', currency);
}
async getPrices() {
return await redisClient.hgetall('prices');
}
async savePrices(prices: Record<string, string>) {
await redisClient.hset('prices', prices);
}
}
export default new PriceService();
export default () => new PriceService();

84
src/services/TxService.ts
View File

@ -1,17 +1,38 @@
import { TxManager } from 'tx-manager';
import { configService } from './index';
import { ProxyLightABI, TornadoProxyABI } from '../../contracts';
import { parseEther } from 'ethers/lib/utils';
import { gasLimits } from '../config';
import { formatEther, parseEther, parseUnits } from 'ethers/lib/utils';
import { gasLimits, httpRpcUrl, tornadoServiceFee } from '../config';
import { BigNumber, BigNumberish, BytesLike } from 'ethers';
import { JobType } from '../types';
import getPriceService from './PriceService';
import { GasPriceOracle } from 'gas-price-oracle';
export type WithdrawalData = {
contract: string,
proof: BytesLike,
args: [
BytesLike,
BytesLike,
string,
string,
BigNumberish,
BigNumberish
]
}
export class TxService {
txManager: TxManager;
tornadoProxy: TornadoProxyABI | ProxyLightABI;
priceService: ReturnType<typeof getPriceService>;
oracle: GasPriceOracle;
constructor() {
const { privateKey, rpcUrl, proxyContract } = configService;
const { privateKey, rpcUrl, netId } = configService;
this.txManager = new TxManager({ privateKey, rpcUrl });
this.tornadoProxy = proxyContract;
this.tornadoProxy = configService.proxyContract;
this.oracle = new GasPriceOracle({ defaultRpc: httpRpcUrl, chainId: netId });
this.priceService = getPriceService();
}
async init() {
@ -26,21 +47,60 @@ export class TxService {
.on('mined', receipt => console.log('Mined in block', receipt.blockNumber))
.on('confirmations', confirmations => console.log({ confirmations }));
console.log(receipt);
await Promise.resolve();
return receipt;
}
private async prepareCallData(data) {
// const calldata = this.tornadoProxy.interface.encodeFunctionData('withdraw', );
private async prepareCallData(data: WithdrawalData) {
const { contract, proof, args } = data;
const calldata = this.tornadoProxy.interface.encodeFunctionData('withdraw', [contract, proof, ...args]);
return {
value: data.args[5],
to: this.tornadoProxy.address,
data: [],
data: calldata,
gasLimit: gasLimits['WITHDRAW_WITH_EXTRA'],
};
}
async checkTornadoFee({ args, contract }: WithdrawalData) {
const { currency, amount, decimals } = configService.getInstance(contract);
const [fee, refund] = [args[4], args[5]].map(BigNumber.from);
const gasPrice = await this.getGasPrice();
const ethPrice = await this.priceService.getPrice(currency);
const operationCost = gasPrice.mul((gasLimits[JobType.TORNADO_WITHDRAW]));
const serviceFee = parseUnits(amount, decimals)
.mul(tornadoServiceFee * 1e10)
.div(100 * 1e10);
let desiredFee = operationCost.add(serviceFee);
if (currency !== 'eth') {
desiredFee = operationCost
.add(refund)
.mul(10 ** decimals)
.div(ethPrice)
.add(serviceFee);
}
console.log(
{
sentFee: formatEther(fee),
desiredFee: formatEther(desiredFee),
serviceFee: formatEther(serviceFee),
},
);
if (fee.lt(desiredFee)) {
throw new Error('Provided fee is not enough. Probably it is a Gas Price spike, try to resubmit.');
}
}
async getGasPrice(): Promise<BigNumber> {
const { baseFeePerGas = 0 } = await this.tornadoProxy.provider.getBlock('latest');
// const gasPrice = await this.tornadoProxy.provider.getGasPrice();
if (baseFeePerGas) return baseFeePerGas;
const { fast = 0 } = await this.oracle.gasPrices();
return parseUnits(String(fast), 'gwei');
}
}
export default new TxService();
export default () => new TxService();

3
src/services/index.ts
View File

@ -1,3 +1,4 @@
export { default as priceService } from './PriceService';
export { default as configService } from './ConfigService';
export { default as getPriceService } from './PriceService';
export { default as getJobService } from './JobService';
export { default as txService } from './TxService';

4
src/types.ts
View File

@ -1,10 +1,10 @@
export enum jobType {
export enum JobType {
TORNADO_WITHDRAW = 'TORNADO_WITHDRAW',
MINING_REWARD = 'MINING_REWARD',
MINING_WITHDRAW = 'MINING_WITHDRAW',
}
export enum jobStatus {
export enum JobStatus {
QUEUED = 'QUEUED',
ACCEPTED = 'ACCEPTED',
SENT = 'SENT',

4
src/worker.ts
View File

@ -1,3 +1,3 @@
import initWorker from './queue/worker';
import { relayerWorker, schedulerWorker } from './queue/worker';
initWorker();
schedulerWorker();

2
tsconfig.json
View File

@ -4,7 +4,7 @@
"es6",
"es2020"
],
"target": "es2017",
"target": "es2020",
"module": "commonjs",
"moduleResolution": "node",
"outDir": "./build",