diff --git a/app/scripts/controllers/infura.js b/app/scripts/controllers/infura.js new file mode 100644 index 000000000..98375b446 --- /dev/null +++ b/app/scripts/controllers/infura.js @@ -0,0 +1,42 @@ +const ObservableStore = require('obs-store') +const extend = require('xtend') + +// every ten minutes +const POLLING_INTERVAL = 300000 + +class InfuraController { + + constructor (opts = {}) { + const initState = extend({ + infuraNetworkStatus: {}, + }, opts.initState) + this.store = new ObservableStore(initState) + } + + // + // PUBLIC METHODS + // + + // Responsible for retrieving the status of Infura's nodes. Can return either + // ok, degraded, or down. + checkInfuraNetworkStatus () { + return fetch('https://api.infura.io/v1/status/metamask') + .then(response => response.json()) + .then((parsedResponse) => { + this.store.updateState({ + infuraNetworkStatus: parsedResponse, + }) + }) + } + + scheduleInfuraNetworkCheck () { + if (this.conversionInterval) { + clearInterval(this.conversionInterval) + } + this.conversionInterval = setInterval(() => { + this.checkInfuraNetworkStatus() + }, POLLING_INTERVAL) + } +} + +module.exports = InfuraController diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js index f33da5213..1a83c70f5 100644 --- a/app/scripts/metamask-controller.js +++ b/app/scripts/metamask-controller.js @@ -15,6 +15,7 @@ const CurrencyController = require('./controllers/currency') const NoticeController = require('./notice-controller') const ShapeShiftController = require('./controllers/shapeshift') const AddressBookController = require('./controllers/address-book') +const InfuraController = require('./controllers/infura') const MessageManager = require('./lib/message-manager') const PersonalMessageManager = require('./lib/personal-message-manager') const TransactionController = require('./controllers/transactions') @@ -44,8 +45,8 @@ module.exports = class MetamaskController extends EventEmitter { this.store = new ObservableStore(initState) // network store - this.networkController = new NetworkController(initState.NetworkController) + // config manager this.configManager = new ConfigManager({ store: this.store, @@ -63,6 +64,13 @@ module.exports = class MetamaskController extends EventEmitter { this.currencyController.updateConversionRate() this.currencyController.scheduleConversionInterval() + // infura controller + this.infuraController = new InfuraController({ + initState: initState.InfuraController, + }) + this.infuraController.scheduleInfuraNetworkCheck() + + // rpc provider this.provider = this.initializeProvider() @@ -147,6 +155,9 @@ module.exports = class MetamaskController extends EventEmitter { this.networkController.store.subscribe((state) => { this.store.updateState({ NetworkController: state }) }) + this.infuraController.store.subscribe((state) => { + this.store.updateState({ InfuraController: state }) + }) // manual mem state subscriptions this.networkController.store.subscribe(this.sendUpdate.bind(this)) @@ -160,6 +171,7 @@ module.exports = class MetamaskController extends EventEmitter { this.currencyController.store.subscribe(this.sendUpdate.bind(this)) this.noticeController.memStore.subscribe(this.sendUpdate.bind(this)) this.shapeshiftController.store.subscribe(this.sendUpdate.bind(this)) + this.infuraController.store.subscribe(this.sendUpdate.bind(this)) } // @@ -237,6 +249,7 @@ module.exports = class MetamaskController extends EventEmitter { this.addressBookController.store.getState(), this.currencyController.store.getState(), this.noticeController.memStore.getState(), + this.infuraController.store.getState(), // config manager this.configManager.getConfig(), this.shapeshiftController.store.getState(), diff --git a/test/unit/infura-controller-test.js b/test/unit/infura-controller-test.js new file mode 100644 index 000000000..7a2a114f9 --- /dev/null +++ b/test/unit/infura-controller-test.js @@ -0,0 +1,34 @@ +// polyfill fetch +global.fetch = function () {return Promise.resolve({ + json: () => { return Promise.resolve({"mainnet": "ok", "ropsten": "degraded", "kovan": "down", "rinkeby": "ok"}) }, + }) +} +const assert = require('assert') +const InfuraController = require('../../app/scripts/controllers/infura') + +describe('infura-controller', function () { + var infuraController + + beforeEach(function () { + infuraController = new InfuraController() + }) + + describe('network status queries', function () { + describe('#checkInfuraNetworkStatus', function () { + it('should return an object reflecting the network statuses', function (done) { + this.timeout(15000) + infuraController.checkInfuraNetworkStatus() + .then(() => { + const networkStatus = infuraController.store.getState().infuraNetworkStatus + assert.equal(Object.keys(networkStatus).length, 4) + assert.equal(networkStatus.mainnet, 'ok') + assert.equal(networkStatus.ropsten, 'degraded') + assert.equal(networkStatus.kovan, 'down') + }) + .then(() => done()) + .catch(done) + + }) + }) + }) +})