403 lines
14 KiB
JavaScript
403 lines
14 KiB
JavaScript
const fs = require('../../core/fs.js');
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const utils = require('../../utils/utils.js');
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const namehash = require('eth-ens-namehash');
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const async = require('async');
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const embarkJsUtils = require('embarkjs').Utils;
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const reverseAddrSuffix = '.addr.reverse';
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const MAINNET_ID = '1';
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const ROPSTEN_ID = '3';
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const RINKEBY_ID = '4';
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// Price of ENS registration contract functions
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const ENS_GAS_PRICE = 700000;
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const ENS_CONTRACTS_CONFIG = {
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[MAINNET_ID]: {
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"ENSRegistry": {
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"address": "0x314159265dd8dbb310642f98f50c066173c1259b",
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"silent": true
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},
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"Resolver": {
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"deploy": false
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},
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"FIFSRegistrar": {
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"deploy": false
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}
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},
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[ROPSTEN_ID]: {
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"ENSRegistry": {
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"address": "0x112234455c3a32fd11230c42e7bccd4a84e02010",
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"silent": true
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},
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"Resolver": {
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"deploy": false
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},
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"FIFSRegistrar": {
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"deploy": false
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}
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},
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[RINKEBY_ID]: {
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"ENSRegistry": {
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"address": "0xe7410170f87102DF0055eB195163A03B7F2Bff4A",
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"silent": true
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},
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"Resolver": {
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"deploy": false
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},
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"FIFSRegistrar": {
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"deploy": false
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}
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}
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};
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class ENS {
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constructor(embark, _options) {
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this.env = embark.env;
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this.logger = embark.logger;
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this.events = embark.events;
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this.namesConfig = embark.config.namesystemConfig;
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this.enabled = false;
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this.registration = this.namesConfig.register || {};
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this.embark = embark;
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this.ensConfig = require('./ensContractConfigs');
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this.configured = false;
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this.events.setCommandHandler("ens:resolve", this.ensResolve.bind(this));
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if (this.namesConfig === {} ||
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this.namesConfig.enabled !== true ||
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this.namesConfig.available_providers.indexOf('ens') < 0) {
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return;
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}
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this.enabled = true;
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this.doSetENSProvider = this.namesConfig.provider === 'ens';
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this.addENSToEmbarkJS();
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this.registerEvents();
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this.registerConsoleCommands();
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}
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registerConsoleCommands() {
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this.embark.registerConsoleCommand((cmd, _options) => {
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let [cmdName, domain] = cmd.split(' ');
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return {
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match: () => cmdName === 'resolve',
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process: (cb) => global.EmbarkJS.Names.resolve(domain, cb)
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};
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});
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this.embark.registerConsoleCommand((cmd, _options) => {
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let [cmdName, address] = cmd.split(' ');
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return {
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match: () => cmdName === 'lookup',
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process: (cb) => global.EmbarkJS.Names.lookup(address, cb)
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};
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});
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this.embark.registerConsoleCommand((cmd, _options) => {
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let [cmdName, name, address] = cmd.split(' ');
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return {
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match: () => cmdName === 'registerSubDomain',
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process: (cb) => global.EmbarkJS.Names.registerSubDomain(name, address, cb)
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};
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});
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}
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registerEvents() {
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this.embark.registerActionForEvent("deploy:beforeAll", this.configureContractsAndRegister.bind(this));
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this.events.setCommandHandler("storage:ens:associate", this.associateStorageToEns.bind(this));
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}
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setProviderAndRegisterDomains(cb = (() => {})) {
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const self = this;
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let config = {
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env: self.env,
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registration: self.registration,
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registryAbi: self.ensConfig.ENSRegistry.abiDefinition,
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registryAddress: self.ensConfig.ENSRegistry.deployedAddress,
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registrarAbi: self.ensConfig.FIFSRegistrar.abiDefinition,
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registrarAddress: self.ensConfig.FIFSRegistrar.deployedAddress,
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resolverAbi: self.ensConfig.Resolver.abiDefinition,
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resolverAddress: self.ensConfig.Resolver.deployedAddress
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};
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if (self.doSetENSProvider) {
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self.addSetProvider(config);
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}
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self.events.request('blockchain:networkId', (networkId) => {
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const isKnownNetwork = Boolean(ENS_CONTRACTS_CONFIG[networkId]);
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const shouldRegisterSubdomain = self.registration && self.registration.subdomains && Object.keys(self.registration.subdomains).length;
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if (isKnownNetwork || !shouldRegisterSubdomain) {
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return cb();
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}
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self.registerConfigDomains(config, cb);
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});
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}
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associateStorageToEns(options, cb) {
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const self = this;
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// Code inspired by https://github.com/monkybrain/ipfs-to-ens
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const {name, storageHash} = options;
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if (!utils.isValidEthDomain(name)) {
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return cb('Invalid domain name ' + name);
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}
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let hashedName = namehash.hash(name);
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let contentHash;
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try {
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contentHash = utils.hashTo32ByteHexString(storageHash);
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} catch (e) {
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return cb('Invalid IPFS hash');
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}
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// Set content
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async.waterfall([
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function getRegistryABI(next) {
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self.events.request('contracts:contract', "ENSRegistry", (contract) => {
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next(null, contract);
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});
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},
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function createRegistryContract(contract, next) {
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self.events.request("blockchain:contract:create",
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{abi: contract.abiDefinition, address: contract.deployedAddress},
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(resolver) => {
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next(null, resolver);
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});
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},
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function getResolverForName(registry, next) {
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registry.methods.resolver(hashedName).call((err, resolverAddress) => {
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if (err) {
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return cb(err);
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}
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if (resolverAddress === '0x0000000000000000000000000000000000000000') {
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return cb('Name not yet registered');
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}
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next(null, resolverAddress);
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});
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},
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function getResolverABI(resolverAddress, next) {
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self.events.request('contracts:contract', "Resolver", (contract) => {
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next(null, resolverAddress, contract);
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});
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},
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function createResolverContract(resolverAddress, contract, next) {
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self.events.request("blockchain:contract:create",
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{abi: contract.abiDefinition, address: resolverAddress},
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(resolver) => {
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next(null, resolver);
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});
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},
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function getDefaultAccount(resolver, next) {
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self.events.request("blockchain:defaultAccount:get", (defaultAccount) => {
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next(null, resolver, defaultAccount);
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});
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},
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function setContent(resolver, defaultAccount, next) {
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resolver.methods.setContent(hashedName, contentHash).send({from: defaultAccount}).then((transaction) => {
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if (transaction.status !== "0x1" && transaction.status !== "0x01" && transaction.status !== true) {
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return next('Association failed. Status: ' + transaction.status);
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}
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next();
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}).catch(next);
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}
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], cb);
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}
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registerConfigDomains(config, cb) {
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const self = this;
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const register = require('./register');
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const secureSend = embarkJsUtils.secureSend;
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self.events.request("blockchain:defaultAccount:get", (defaultAccount) => {
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async.each(Object.keys(self.registration.subdomains), (subDomainName, eachCb) => {
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const address = self.registration.subdomains[subDomainName];
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const reverseNode = utils.soliditySha3(address.toLowerCase().substr(2) + reverseAddrSuffix);
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register(self.ensContract, self.registrarContract, self.resolverContract, defaultAccount, subDomainName, self.registration.rootDomain,
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reverseNode, address, self.logger, secureSend, eachCb);
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}, cb);
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});
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}
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addENSToEmbarkJS() {
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const self = this;
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// get namehash, import it into file
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self.events.request("version:get:eth-ens-namehash", function(EnsNamehashVersion) {
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let currentEnsNamehashVersion = require('../../../package.json').dependencies["eth-ens-namehash"];
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if (EnsNamehashVersion !== currentEnsNamehashVersion) {
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self.events.request("version:getPackageLocation", "eth-ens-namehash", EnsNamehashVersion, function(err, location) {
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self.embark.registerImportFile("eth-ens-namehash", fs.dappPath(location));
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});
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}
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});
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let code = fs.readFileSync(utils.joinPath(__dirname, 'register.js')).toString();
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code += "\n" + fs.readFileSync(utils.joinPath(__dirname, 'embarkjs.js')).toString();
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code += "\nEmbarkJS.Names.registerProvider('ens', __embarkENS);";
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this.embark.addCodeToEmbarkJS(code);
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}
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configureContractsAndRegister(cb) {
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const self = this;
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if (self.configured) {
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return cb();
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}
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self.events.request('blockchain:networkId', (networkId) => {
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if (ENS_CONTRACTS_CONFIG[networkId]) {
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self.ensConfig = utils.recursiveMerge(self.ensConfig, ENS_CONTRACTS_CONFIG[networkId]);
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}
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async.waterfall([
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function registry(next) {
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self.events.request('deploy:contract', self.ensConfig.ENSRegistry, (err, _receipt) => {
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return next(err);
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});
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},
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function resolver(next) {
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self.ensConfig.Resolver.args = [self.ensConfig.ENSRegistry.deployedAddress];
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self.events.request('deploy:contract', self.ensConfig.Resolver, (err, _receipt) => {
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return next(err);
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});
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},
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function registrar(next) {
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if (!self.registration || !self.registration.rootDomain) {
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return next();
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}
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const registryAddress = self.ensConfig.ENSRegistry.deployedAddress;
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const rootNode = namehash.hash(self.registration.rootDomain);
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const contract = self.ensConfig.FIFSRegistrar;
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contract.args = [registryAddress, rootNode];
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self.events.request('deploy:contract', contract, (err, _receipt) => {
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return next(err);
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});
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},
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function registerRoot(next) {
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let config = {
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registryAbi: self.ensConfig.ENSRegistry.abiDefinition,
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registryAddress: self.ensConfig.ENSRegistry.deployedAddress,
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registrarAbi: self.ensConfig.FIFSRegistrar.abiDefinition,
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registrarAddress: self.ensConfig.FIFSRegistrar.deployedAddress,
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resolverAbi: self.ensConfig.Resolver.abiDefinition,
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resolverAddress: self.ensConfig.Resolver.deployedAddress
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};
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async.parallel([
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function createRegistryContract(paraCb) {
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self.events.request("blockchain:contract:create",
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{abi: config.registryAbi, address: config.registryAddress},
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(registry) => {
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paraCb(null, registry);
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});
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},
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function createRegistrarContract(paraCb) {
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self.events.request("blockchain:contract:create",
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{abi: config.registrarAbi, address: config.registrarAddress},
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(registrar) => {
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paraCb(null, registrar);
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});
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},
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function createResolverContract(paraCb) {
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self.events.request("blockchain:contract:create",
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{abi: config.resolverAbi, address: config.resolverAddress},
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(resolver) => {
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paraCb(null, resolver);
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});
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},
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function getWeb3(paraCb) {
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self.events.request("blockchain:get",
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(web3) => {
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paraCb(null, web3);
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});
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}
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], (err, result) => {
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self.ensContract = result[0];
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self.registrarContract = result[1];
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self.resolverContract = result[2];
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const web3 = result[3];
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const rootNode = namehash.hash(self.registration.rootDomain);
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var reverseNode = web3.utils.soliditySha3(web3.eth.defaultAccount.toLowerCase().substr(2) + reverseAddrSuffix);
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self.ensContract.methods.setOwner(rootNode, web3.eth.defaultAccount).send({from: web3.eth.defaultAccount, gas: ENS_GAS_PRICE}).then(() => {
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return self.ensContract.methods.setResolver(rootNode, config.resolverAddress).send({from: web3.eth.defaultAccount, gas: ENS_GAS_PRICE});
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}).then(() => {
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return self.ensContract.methods.setResolver(reverseNode, config.resolverAddress).send({from: web3.eth.defaultAccount, gas: ENS_GAS_PRICE});
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}).then(() => {
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return self.resolverContract.methods.setAddr(rootNode, web3.eth.defaultAccount).send({from: web3.eth.defaultAccount, gas: ENS_GAS_PRICE});
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}).then(() => {
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return self.resolverContract.methods.setName(reverseNode, self.registration.rootDomain).send({from: web3.eth.defaultAccount, gas: ENS_GAS_PRICE});
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}).then((_result) => {
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next();
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})
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.catch(err => {
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self.logger.error('Error while registering the root domain');
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if (err.message.indexOf('Transaction has been reverted by the EVM') > -1) {
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return next(__('Registration was rejected. Did you change the deployment account? If so, delete chains.json'));
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}
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next(err);
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});
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});
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}
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], (err) => {
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self.configured = true;
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if (err) {
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self.logger.error('Error while deploying ENS contracts');
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self.logger.error(err.message || err);
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return cb(err);
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}
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self.setProviderAndRegisterDomains(cb);
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});
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});
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}
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addSetProvider(config) {
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let code = "\nEmbarkJS.Names.setProvider('ens'," + JSON.stringify(config) + ");";
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let shouldInit = (namesConfig) => {
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return (namesConfig.provider === 'ens' && namesConfig.enabled === true);
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};
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this.embark.addProviderInit('names', code, shouldInit);
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this.embark.addConsoleProviderInit('names', code, shouldInit);
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}
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ensResolve(name, cb) {
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const self = this;
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if (!self.enabled) {
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return cb('ENS not enabled');
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}
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if(!self.configured) {
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return cb('ENS not configured');
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}
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const hashedName = namehash.hash(name);
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async.waterfall([
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function getResolverAddress(next) {
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self.ensContract.methods.resolver(hashedName).call((err, resolverAddress) => {
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if (err) {
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next(err);
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} else if(resolverAddress === '0x0000000000000000000000000000000000000000') {
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next('Name not yet registered');
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} else {
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next(null, resolverAddress);
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}
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});
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},
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function createResolverContract(resolverAddress, next) {
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self.events.request("blockchain:contract:create",
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{abi: self.ensConfig.Resolver.abiDefinition, address: resolverAddress},
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(resolver) => {
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next(null, resolver);
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});
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},
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function resolveName(resolverContract, next) {
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resolverContract.methods.addr(hashedName).call(next);
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}
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], cb);
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}
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}
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module.exports = ENS;
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