diff options
author | Brandon Millman <brandon.millman@gmail.com> | 2018-01-24 02:10:43 +0800 |
---|---|---|
committer | Brandon Millman <brandon.millman@gmail.com> | 2018-01-24 02:10:43 +0800 |
commit | d965fdb11dfba5631c1f98ad3e309876c199999a (patch) | |
tree | ec10b7341707cfcc6841d1b5fcbf0d3852536a79 /packages/testnet-faucets/src | |
parent | 8a858501f2b633f47cec9576b25e6f99911bbc09 (diff) | |
download | dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.tar dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.tar.gz dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.tar.bz2 dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.tar.lz dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.tar.xz dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.tar.zst dexon-0x-contracts-d965fdb11dfba5631c1f98ad3e309876c199999a.zip |
Rename to testnet-faucets
Diffstat (limited to 'packages/testnet-faucets/src')
-rw-r--r-- | packages/testnet-faucets/src/ts/configs.ts | 12 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/error_reporter.ts | 40 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/ether_request_queue.ts | 27 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/global.d.ts | 26 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/handler.ts | 93 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/id_management.ts | 23 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/request_queue.ts | 56 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/server.ts | 28 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/utils.ts | 7 | ||||
-rw-r--r-- | packages/testnet-faucets/src/ts/zrx_request_queue.ts | 45 |
10 files changed, 357 insertions, 0 deletions
diff --git a/packages/testnet-faucets/src/ts/configs.ts b/packages/testnet-faucets/src/ts/configs.ts new file mode 100644 index 000000000..2e5a7f64d --- /dev/null +++ b/packages/testnet-faucets/src/ts/configs.ts @@ -0,0 +1,12 @@ +export const configs = { + DISPENSER_ADDRESS: (process.env.DISPENSER_ADDRESS as string).toLowerCase(), + DISPENSER_PRIVATE_KEY: process.env.DISPENSER_PRIVATE_KEY, + ENVIRONMENT: process.env.FAUCET_ENVIRONMENT, + ROLLBAR_ACCESS_KEY: process.env.FAUCET_ROLLBAR_ACCESS_KEY, + RPC_URL: + process.env.FAUCET_ENVIRONMENT === 'development' + ? 'http://127.0.0.1:8545' + : `https://kovan.infura.io/${process.env.INFURA_API_KEY}`, + ZRX_TOKEN_ADDRESS: '0x6ff6c0ff1d68b964901f986d4c9fa3ac68346570', + KOVAN_NETWORK_ID: 42, +}; diff --git a/packages/testnet-faucets/src/ts/error_reporter.ts b/packages/testnet-faucets/src/ts/error_reporter.ts new file mode 100644 index 000000000..6865d3893 --- /dev/null +++ b/packages/testnet-faucets/src/ts/error_reporter.ts @@ -0,0 +1,40 @@ +import * as express from 'express'; +import rollbar = require('rollbar'); + +import { configs } from './configs'; +import { utils } from './utils'; + +export const errorReporter = { + setup() { + rollbar.init(configs.ROLLBAR_ACCESS_KEY, { + environment: configs.ENVIRONMENT, + }); + + rollbar.handleUncaughtExceptions(configs.ROLLBAR_ACCESS_KEY); + + process.on('unhandledRejection', async (err: Error) => { + utils.consoleLog(`Uncaught exception ${err}. Stack: ${err.stack}`); + await this.reportAsync(err); + process.exit(1); + }); + }, + async reportAsync(err: Error, req?: express.Request): Promise<any> { + if (configs.ENVIRONMENT === 'development') { + return; // Do not log development environment errors + } + + return new Promise((resolve, reject) => { + rollbar.handleError(err, req, (rollbarErr: Error) => { + if (rollbarErr) { + utils.consoleLog(`Error reporting to rollbar, ignoring: ${rollbarErr}`); + reject(rollbarErr); + } else { + resolve(); + } + }); + }); + }, + errorHandler() { + return rollbar.errorHandler(configs.ROLLBAR_ACCESS_KEY); + }, +}; diff --git a/packages/testnet-faucets/src/ts/ether_request_queue.ts b/packages/testnet-faucets/src/ts/ether_request_queue.ts new file mode 100644 index 000000000..1c4b19ab9 --- /dev/null +++ b/packages/testnet-faucets/src/ts/ether_request_queue.ts @@ -0,0 +1,27 @@ +import { promisify } from '@0xproject/utils'; +import * as _ from 'lodash'; + +import { configs } from './configs'; +import { errorReporter } from './error_reporter'; +import { RequestQueue } from './request_queue'; +import { utils } from './utils'; + +const DISPENSE_AMOUNT_ETHER = 0.1; + +export class EtherRequestQueue extends RequestQueue { + protected async processNextRequestFireAndForgetAsync(recipientAddress: string) { + utils.consoleLog(`Processing ETH ${recipientAddress}`); + const sendTransactionAsync = promisify(this.web3.eth.sendTransaction); + try { + const txHash = await sendTransactionAsync({ + from: configs.DISPENSER_ADDRESS, + to: recipientAddress, + value: this.web3.toWei(DISPENSE_AMOUNT_ETHER, 'ether'), + }); + utils.consoleLog(`Sent ${DISPENSE_AMOUNT_ETHER} ETH to ${recipientAddress} tx: ${txHash}`); + } catch (err) { + utils.consoleLog(`Unexpected err: ${err} - ${JSON.stringify(err)}`); + await errorReporter.reportAsync(err); + } + } +} diff --git a/packages/testnet-faucets/src/ts/global.d.ts b/packages/testnet-faucets/src/ts/global.d.ts new file mode 100644 index 000000000..97cd35680 --- /dev/null +++ b/packages/testnet-faucets/src/ts/global.d.ts @@ -0,0 +1,26 @@ +declare module 'rollbar'; +declare module 'web3-provider-engine'; +declare module 'web3-provider-engine/subproviders/rpc'; +declare module 'web3-provider-engine/subproviders/nonce-tracker'; +declare module 'web3-provider-engine/subproviders/hooked-wallet'; + +declare module '*.json' { + const json: any; + /* tslint:disable */ + export default json; + /* tslint:enable */ +} + +// Ethereumjs-tx declarations +declare module 'ethereumjs-tx' { + class EthereumTx { + public raw: Buffer[]; + public r: Buffer; + public s: Buffer; + public v: Buffer; + public serialize(): Buffer; + public sign(buffer: Buffer): void; + constructor(txParams: any); + } + export = EthereumTx; +} diff --git a/packages/testnet-faucets/src/ts/handler.ts b/packages/testnet-faucets/src/ts/handler.ts new file mode 100644 index 000000000..4bf776264 --- /dev/null +++ b/packages/testnet-faucets/src/ts/handler.ts @@ -0,0 +1,93 @@ +import * as express from 'express'; +import * as _ from 'lodash'; +import ProviderEngine = require('web3-provider-engine'); +import HookedWalletSubprovider = require('web3-provider-engine/subproviders/hooked-wallet'); +import NonceSubprovider = require('web3-provider-engine/subproviders/nonce-tracker'); +import RpcSubprovider = require('web3-provider-engine/subproviders/rpc'); + +import { configs } from './configs'; +import { EtherRequestQueue } from './ether_request_queue'; +import { idManagement } from './id_management'; +import { utils } from './utils'; +import { ZRXRequestQueue } from './zrx_request_queue'; + +// HACK: web3 leaks XMLHttpRequest into the global scope and causes requests to hang +// because they are using the wrong XHR package. +// Filed issue: https://github.com/ethereum/web3.js/issues/844 +// tslint:disable-next-line:ordered-imports +import * as Web3 from 'web3'; + +export class Handler { + private _etherRequestQueue: EtherRequestQueue; + private _zrxRequestQueue: ZRXRequestQueue; + private _web3: Web3; + constructor() { + // Setup provider engine to talk with RPC node + const providerObj = this._createProviderEngine(configs.RPC_URL); + this._web3 = new Web3(providerObj); + + this._etherRequestQueue = new EtherRequestQueue(this._web3); + this._zrxRequestQueue = new ZRXRequestQueue(this._web3); + } + public dispenseEther(req: express.Request, res: express.Response) { + const recipientAddress = req.params.recipient; + if (_.isUndefined(recipientAddress) || !this._isValidEthereumAddress(recipientAddress)) { + res.status(400).send('INVALID_REQUEST'); + return; + } + const lowerCaseRecipientAddress = recipientAddress.toLowerCase(); + const didAddToQueue = this._etherRequestQueue.add(lowerCaseRecipientAddress); + if (!didAddToQueue) { + res.status(503).send('QUEUE_IS_FULL'); + return; + } + utils.consoleLog(`Added ${lowerCaseRecipientAddress} to the ETH queue`); + res.status(200).end(); + } + public dispenseZRX(req: express.Request, res: express.Response) { + const recipientAddress = req.params.recipient; + if (_.isUndefined(recipientAddress) || !this._isValidEthereumAddress(recipientAddress)) { + res.status(400).send('INVALID_REQUEST'); + return; + } + const lowerCaseRecipientAddress = recipientAddress.toLowerCase(); + const didAddToQueue = this._zrxRequestQueue.add(lowerCaseRecipientAddress); + if (!didAddToQueue) { + res.status(503).send('QUEUE_IS_FULL'); + return; + } + utils.consoleLog(`Added ${lowerCaseRecipientAddress} to the ZRX queue`); + res.status(200).end(); + } + public getQueueInfo(req: express.Request, res: express.Response) { + res.setHeader('Content-Type', 'application/json'); + const payload = JSON.stringify({ + ether: { + full: this._etherRequestQueue.isFull(), + size: this._etherRequestQueue.size(), + }, + zrx: { + full: this._zrxRequestQueue.isFull(), + size: this._zrxRequestQueue.size(), + }, + }); + res.status(200).send(payload); + } + // tslint:disable-next-line:prefer-function-over-method + private _createProviderEngine(rpcUrl: string) { + const engine = new ProviderEngine(); + engine.addProvider(new NonceSubprovider()); + engine.addProvider(new HookedWalletSubprovider(idManagement)); + engine.addProvider( + new RpcSubprovider({ + rpcUrl, + }), + ); + engine.start(); + return engine; + } + private _isValidEthereumAddress(address: string): boolean { + const lowercaseAddress = address.toLowerCase(); + return this._web3.isAddress(lowercaseAddress); + } +} diff --git a/packages/testnet-faucets/src/ts/id_management.ts b/packages/testnet-faucets/src/ts/id_management.ts new file mode 100644 index 000000000..930821172 --- /dev/null +++ b/packages/testnet-faucets/src/ts/id_management.ts @@ -0,0 +1,23 @@ +import EthereumTx = require('ethereumjs-tx'); + +import { configs } from './configs'; +import { utils } from './utils'; + +type Callback = (err: Error | null, accounts: any) => void; + +export const idManagement = { + getAccounts(callback: Callback) { + utils.consoleLog(`configs.DISPENSER_ADDRESS: ${configs.DISPENSER_ADDRESS}`); + callback(null, [configs.DISPENSER_ADDRESS]); + }, + approveTransaction(txData: object, callback: Callback) { + callback(null, true); + }, + signTransaction(txData: object, callback: Callback) { + const tx = new EthereumTx(txData); + const privateKeyBuffer = new Buffer(configs.DISPENSER_PRIVATE_KEY as string, 'hex'); + tx.sign(privateKeyBuffer); + const rawTx = `0x${tx.serialize().toString('hex')}`; + callback(null, rawTx); + }, +}; diff --git a/packages/testnet-faucets/src/ts/request_queue.ts b/packages/testnet-faucets/src/ts/request_queue.ts new file mode 100644 index 000000000..2b42ca4bf --- /dev/null +++ b/packages/testnet-faucets/src/ts/request_queue.ts @@ -0,0 +1,56 @@ +import * as _ from 'lodash'; +import * as timers from 'timers'; + +// HACK: web3 leaks XMLHttpRequest into the global scope and causes requests to hang +// because they are using the wrong XHR package. +// Filed issue: https://github.com/ethereum/web3.js/issues/844 +// tslint:disable-next-line:ordered-imports +import * as Web3 from 'web3'; + +const MAX_QUEUE_SIZE = 500; +const DEFAULT_QUEUE_INTERVAL_MS = 1000; + +export class RequestQueue { + protected queueIntervalMs: number; + protected queue: string[]; + protected queueIntervalId: NodeJS.Timer; + protected web3: Web3; + constructor(web3: any) { + this.queueIntervalMs = DEFAULT_QUEUE_INTERVAL_MS; + this.queue = []; + + this.web3 = web3; + + this.start(); + } + public add(recipientAddress: string): boolean { + if (this.isFull()) { + return false; + } + this.queue.push(recipientAddress); + return true; + } + public size(): number { + return this.queue.length; + } + public isFull(): boolean { + return this.size() >= MAX_QUEUE_SIZE; + } + protected start() { + this.queueIntervalId = timers.setInterval(() => { + const recipientAddress = this.queue.shift(); + if (_.isUndefined(recipientAddress)) { + return; + } + // tslint:disable-next-line:no-floating-promises + this.processNextRequestFireAndForgetAsync(recipientAddress); + }, this.queueIntervalMs); + } + protected stop() { + clearInterval(this.queueIntervalId); + } + // tslint:disable-next-line:prefer-function-over-method + protected async processNextRequestFireAndForgetAsync(recipientAddress: string) { + throw new Error('Expected processNextRequestFireAndForgetAsync to be implemented by a superclass'); + } +} diff --git a/packages/testnet-faucets/src/ts/server.ts b/packages/testnet-faucets/src/ts/server.ts new file mode 100644 index 000000000..23642787d --- /dev/null +++ b/packages/testnet-faucets/src/ts/server.ts @@ -0,0 +1,28 @@ +import * as bodyParser from 'body-parser'; +import * as express from 'express'; + +import { errorReporter } from './error_reporter'; +import { Handler } from './handler'; + +// Setup the errorReporter to catch uncaught exceptions and unhandled rejections +errorReporter.setup(); + +const app = express(); +app.use(bodyParser.json()); // for parsing application/json +app.use((req, res, next) => { + res.header('Access-Control-Allow-Origin', '*'); + res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept'); + next(); +}); + +const handler = new Handler(); +app.get('/ping', (req: express.Request, res: express.Response) => { + res.status(200).send('pong'); +}); +app.get('/ether/:recipient', handler.dispenseEther.bind(handler)); +app.get('/zrx/:recipient', handler.dispenseZRX.bind(handler)); + +// Log to rollbar any errors unhandled by handlers +app.use(errorReporter.errorHandler()); +const port = process.env.PORT || 3000; +app.listen(port); diff --git a/packages/testnet-faucets/src/ts/utils.ts b/packages/testnet-faucets/src/ts/utils.ts new file mode 100644 index 000000000..893f82ca3 --- /dev/null +++ b/packages/testnet-faucets/src/ts/utils.ts @@ -0,0 +1,7 @@ +export const utils = { + consoleLog(message: string) { + /* tslint:disable */ + console.log(message); + /* tslint:enable */ + }, +}; diff --git a/packages/testnet-faucets/src/ts/zrx_request_queue.ts b/packages/testnet-faucets/src/ts/zrx_request_queue.ts new file mode 100644 index 000000000..bbc06f1de --- /dev/null +++ b/packages/testnet-faucets/src/ts/zrx_request_queue.ts @@ -0,0 +1,45 @@ +import { ZeroEx } from '0x.js'; +import { BigNumber } from '@0xproject/utils'; +import * as _ from 'lodash'; + +import { configs } from './configs'; +import { errorReporter } from './error_reporter'; +import { RequestQueue } from './request_queue'; +import { utils } from './utils'; + +// HACK: web3 leaks XMLHttpRequest into the global scope and causes requests to hang +// because they are using the wrong XHR package. +// Filed issue: https://github.com/ethereum/web3.js/issues/844 +// tslint:disable-next-line:ordered-imports +import * as Web3 from 'web3'; + +const DISPENSE_AMOUNT_ZRX = new BigNumber(0.1); +const QUEUE_INTERVAL_MS = 5000; + +export class ZRXRequestQueue extends RequestQueue { + private _zeroEx: ZeroEx; + constructor(web3: Web3) { + super(web3); + this.queueIntervalMs = QUEUE_INTERVAL_MS; + const zeroExConfig = { + networkId: configs.KOVAN_NETWORK_ID, + }; + this._zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig); + } + protected async processNextRequestFireAndForgetAsync(recipientAddress: string) { + utils.consoleLog(`Processing ZRX ${recipientAddress}`); + const baseUnitAmount = ZeroEx.toBaseUnitAmount(DISPENSE_AMOUNT_ZRX, 18); + try { + await this._zeroEx.token.transferAsync( + configs.ZRX_TOKEN_ADDRESS, + configs.DISPENSER_ADDRESS, + recipientAddress, + baseUnitAmount, + ); + utils.consoleLog(`Sent ${DISPENSE_AMOUNT_ZRX} ZRX to ${recipientAddress}`); + } catch (err) { + utils.consoleLog(`Unexpected err: ${err} - ${JSON.stringify(err)}`); + await errorReporter.reportAsync(err); + } + } +} |