523 lines
16 KiB
JavaScript
523 lines
16 KiB
JavaScript
const EventEmitter = require('events')
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const extend = require('xtend')
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const EthStore = require('./lib/eth-store')
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const MetaMaskProvider = require('web3-provider-engine/zero.js')
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const KeyringController = require('./keyring-controller')
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const NoticeController = require('./notice-controller')
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const messageManager = require('./lib/message-manager')
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const TxManager = require('./transaction-manager')
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const HostStore = require('./lib/remote-store.js').HostStore
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const Web3 = require('web3')
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const ConfigManager = require('./lib/config-manager')
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const extension = require('./lib/extension')
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const autoFaucet = require('./lib/auto-faucet')
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const nodeify = require('./lib/nodeify')
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const IdStoreMigrator = require('./lib/idStore-migrator')
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module.exports = class MetamaskController extends EventEmitter {
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constructor (opts) {
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super()
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this.state = { network: 'loading' }
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this.opts = opts
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this.configManager = new ConfigManager(opts)
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this.keyringController = new KeyringController({
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configManager: this.configManager,
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getNetwork: this.getStateNetwork.bind(this),
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})
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// notices
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this.noticeController = new NoticeController({
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configManager: this.configManager,
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})
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this.noticeController.updateNoticesList()
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// to be uncommented when retrieving notices from a remote server.
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// this.noticeController.startPolling()
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this.provider = this.initializeProvider(opts)
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this.ethStore = new EthStore(this.provider)
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this.keyringController.setStore(this.ethStore)
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this.getNetwork()
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this.messageManager = messageManager
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this.txManager = new TxManager({
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txList: this.configManager.getTxList(),
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txHistoryLimit: 40,
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setTxList: this.configManager.setTxList.bind(this.configManager),
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getSelectedAccount: this.configManager.getSelectedAccount.bind(this.configManager),
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getGasMultiplier: this.configManager.getGasMultiplier.bind(this.configManager),
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getNetwork: this.getStateNetwork.bind(this),
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provider: this.provider,
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blockTracker: this.provider,
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})
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this.publicConfigStore = this.initPublicConfigStore()
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var currentFiat = this.configManager.getCurrentFiat() || 'USD'
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this.configManager.setCurrentFiat(currentFiat)
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this.configManager.updateConversionRate()
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this.checkTOSChange()
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this.scheduleConversionInterval()
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// TEMPORARY UNTIL FULL DEPRECATION:
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this.idStoreMigrator = new IdStoreMigrator({
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configManager: this.configManager,
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})
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this.ethStore.on('update', this.sendUpdate.bind(this))
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this.keyringController.on('update', this.sendUpdate.bind(this))
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}
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getState () {
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return this.keyringController.getState()
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.then((keyringControllerState) => {
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return extend(
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this.state,
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this.ethStore.getState(),
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this.configManager.getConfig(),
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this.txManager.getState(),
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keyringControllerState,
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this.noticeController.getState(), {
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lostAccounts: this.configManager.getLostAccounts(),
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}
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)
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})
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}
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getApi () {
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const keyringController = this.keyringController
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const txManager = this.txManager
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const noticeController = this.noticeController
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return {
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getState: nodeify(this.getState.bind(this)),
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setRpcTarget: this.setRpcTarget.bind(this),
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setProviderType: this.setProviderType.bind(this),
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useEtherscanProvider: this.useEtherscanProvider.bind(this),
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agreeToDisclaimer: this.agreeToDisclaimer.bind(this),
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resetDisclaimer: this.resetDisclaimer.bind(this),
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setCurrentFiat: this.setCurrentFiat.bind(this),
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setTOSHash: this.setTOSHash.bind(this),
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checkTOSChange: this.checkTOSChange.bind(this),
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setGasMultiplier: this.setGasMultiplier.bind(this),
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markAccountsFound: this.markAccountsFound.bind(this),
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// forward directly to keyringController
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createNewVaultAndKeychain: nodeify(keyringController.createNewVaultAndKeychain).bind(keyringController),
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createNewVaultAndRestore: nodeify(keyringController.createNewVaultAndRestore).bind(keyringController),
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placeSeedWords: nodeify(keyringController.placeSeedWords).bind(keyringController),
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clearSeedWordCache: nodeify(keyringController.clearSeedWordCache).bind(keyringController),
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setLocked: nodeify(keyringController.setLocked).bind(keyringController),
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submitPassword: (password, cb) => {
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this.migrateOldVaultIfAny(password)
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.then(keyringController.submitPassword.bind(keyringController, password))
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.then((newState) => { cb(null, newState) })
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.catch((reason) => { cb(reason) })
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},
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addNewKeyring: nodeify(keyringController.addNewKeyring).bind(keyringController),
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addNewAccount: nodeify(keyringController.addNewAccount).bind(keyringController),
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setSelectedAccount: nodeify(keyringController.setSelectedAccount).bind(keyringController),
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saveAccountLabel: nodeify(keyringController.saveAccountLabel).bind(keyringController),
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exportAccount: nodeify(keyringController.exportAccount).bind(keyringController),
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// signing methods
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approveTransaction: txManager.approveTransaction.bind(txManager),
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cancelTransaction: txManager.cancelTransaction.bind(txManager),
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signMessage: keyringController.signMessage.bind(keyringController),
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cancelMessage: keyringController.cancelMessage.bind(keyringController),
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// coinbase
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buyEth: this.buyEth.bind(this),
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// shapeshift
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createShapeShiftTx: this.createShapeShiftTx.bind(this),
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// notices
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checkNotices: noticeController.updateNoticesList.bind(noticeController),
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markNoticeRead: noticeController.markNoticeRead.bind(noticeController),
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}
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}
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setupProviderConnection (stream, originDomain) {
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stream.on('data', this.onRpcRequest.bind(this, stream, originDomain))
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}
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onRpcRequest (stream, originDomain, request) {
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// handle rpc request
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this.provider.sendAsync(request, function onPayloadHandled (err, response) {
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logger(err, request, response)
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if (response) {
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try {
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stream.write(response)
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} catch (err) {
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logger(err)
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}
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}
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})
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function logger (err, request, response) {
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if (err) return console.error(err)
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if (!request.isMetamaskInternal) {
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if (global.METAMASK_DEBUG) {
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console.log(`RPC (${originDomain}):`, request, '->', response)
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}
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if (response.error) {
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console.error('Error in RPC response:\n', response.error)
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}
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}
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}
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}
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sendUpdate () {
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this.getState()
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.then((state) => {
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this.emit('update', state)
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})
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}
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initializeProvider (opts) {
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const keyringController = this.keyringController
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var providerOpts = {
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rpcUrl: this.configManager.getCurrentRpcAddress(),
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// account mgmt
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getAccounts: (cb) => {
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var selectedAccount = this.configManager.getSelectedAccount()
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var result = selectedAccount ? [selectedAccount] : []
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cb(null, result)
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},
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// tx signing
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approveTransaction: this.newUnsignedTransaction.bind(this),
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signTransaction: (txParams, cb) => {
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this.txManager.formatTxForSigining(txParams)
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.then(({ethTx, address, txId}) => {
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return this.keyringController.signTransaction(ethTx, address, txId)
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})
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.then(({tx, txId}) => {
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return this.txManager.resolveSignedTransaction({tx, txId})
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})
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.then((rawTx) => {
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cb(null, rawTx)
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this.sendUpdate()
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this.txManager.emit(`${txParams.metamaskId}:signingComplete`)
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})
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.catch((err) => {
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console.error(err)
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cb(err)
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})
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},
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// msg signing
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approveMessage: this.newUnsignedMessage.bind(this),
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signMessage: (...args) => {
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keyringController.signMessage(...args)
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this.sendUpdate()
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},
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}
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var provider = MetaMaskProvider(providerOpts)
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var web3 = new Web3(provider)
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this.web3 = web3
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keyringController.web3 = web3
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provider.on('block', this.processBlock.bind(this))
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provider.on('error', this.getNetwork.bind(this))
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return provider
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}
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initPublicConfigStore () {
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// get init state
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var initPublicState = extend(
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keyringControllerToPublic(this.keyringController.getState()),
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configToPublic(this.configManager.getConfig())
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)
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var publicConfigStore = new HostStore(initPublicState)
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// subscribe to changes
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this.configManager.subscribe(function (state) {
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storeSetFromObj(publicConfigStore, configToPublic(state))
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})
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this.keyringController.on('update', () => {
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const state = this.keyringController.getState()
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storeSetFromObj(publicConfigStore, keyringControllerToPublic(state))
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this.sendUpdate()
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})
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this.keyringController.on('newAccount', (account) => {
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autoFaucet(account)
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})
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// keyringController substate
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function keyringControllerToPublic (state) {
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return {
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selectedAccount: state.selectedAccount,
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}
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}
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// config substate
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function configToPublic (state) {
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return {
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provider: state.provider,
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selectedAccount: state.selectedAccount,
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}
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}
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// dump obj into store
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function storeSetFromObj (store, obj) {
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Object.keys(obj).forEach(function (key) {
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store.set(key, obj[key])
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})
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}
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return publicConfigStore
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}
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newUnsignedTransaction (txParams, onTxDoneCb) {
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const txManager = this.txManager
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const err = this.enforceTxValidations(txParams)
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if (err) return onTxDoneCb(err)
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txManager.addUnapprovedTransaction(txParams, onTxDoneCb, (err, txData) => {
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if (err) return onTxDoneCb(err)
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this.sendUpdate()
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this.opts.showUnapprovedTx(txParams, txData, onTxDoneCb)
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})
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}
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enforceTxValidations (txParams) {
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if (('value' in txParams) && txParams.value.indexOf('-') === 0) {
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const msg = `Invalid transaction value of ${txParams.value} not a positive number.`
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return new Error(msg)
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}
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}
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newUnsignedMessage (msgParams, cb) {
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var state = this.keyringController.getState()
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if (!state.isUnlocked) {
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this.keyringController.addUnconfirmedMessage(msgParams, cb)
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this.opts.unlockAccountMessage()
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} else {
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this.addUnconfirmedMessage(msgParams, cb)
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this.sendUpdate()
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}
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}
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addUnconfirmedMessage (msgParams, cb) {
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const keyringController = this.keyringController
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const msgId = keyringController.addUnconfirmedMessage(msgParams, cb)
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this.opts.showUnconfirmedMessage(msgParams, msgId)
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}
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setupPublicConfig (stream) {
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var storeStream = this.publicConfigStore.createStream()
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stream.pipe(storeStream).pipe(stream)
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}
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// Log blocks
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processBlock (block) {
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if (global.METAMASK_DEBUG) {
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console.log(`BLOCK CHANGED: #${block.number.toString('hex')} 0x${block.hash.toString('hex')}`)
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}
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this.verifyNetwork()
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}
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verifyNetwork () {
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// Check network when restoring connectivity:
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if (this.state.network === 'loading') {
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this.getNetwork()
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}
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}
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// config
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//
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setTOSHash (hash) {
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try {
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this.configManager.setTOSHash(hash)
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} catch (err) {
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console.error('Error in setting terms of service hash.')
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}
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}
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checkTOSChange () {
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try {
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const storedHash = this.configManager.getTOSHash() || 0
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if (storedHash !== global.TOS_HASH) {
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this.resetDisclaimer()
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this.setTOSHash(global.TOS_HASH)
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}
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} catch (err) {
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console.error('Error in checking TOS change.')
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}
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}
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// disclaimer
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agreeToDisclaimer (cb) {
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try {
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this.configManager.setConfirmedDisclaimer(true)
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cb()
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} catch (err) {
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cb(err)
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}
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}
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resetDisclaimer () {
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try {
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this.configManager.setConfirmedDisclaimer(false)
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} catch (e) {
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console.error(e)
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}
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}
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setCurrentFiat (fiat, cb) {
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try {
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this.configManager.setCurrentFiat(fiat)
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this.configManager.updateConversionRate()
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this.scheduleConversionInterval()
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const data = {
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conversionRate: this.configManager.getConversionRate(),
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currentFiat: this.configManager.getCurrentFiat(),
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conversionDate: this.configManager.getConversionDate(),
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}
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cb(data)
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} catch (err) {
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cb(null, err)
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}
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}
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scheduleConversionInterval () {
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if (this.conversionInterval) {
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clearInterval(this.conversionInterval)
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}
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this.conversionInterval = setInterval(() => {
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this.configManager.updateConversionRate()
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}, 300000)
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}
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// called from popup
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setRpcTarget (rpcTarget) {
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this.configManager.setRpcTarget(rpcTarget)
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extension.runtime.reload()
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this.getNetwork()
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}
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setProviderType (type) {
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this.configManager.setProviderType(type)
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extension.runtime.reload()
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this.getNetwork()
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}
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useEtherscanProvider () {
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this.configManager.useEtherscanProvider()
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extension.runtime.reload()
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}
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buyEth (address, amount) {
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if (!amount) amount = '5'
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var network = this.state.network
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var url = `https://buy.coinbase.com/?code=9ec56d01-7e81-5017-930c-513daa27bb6a&amount=${amount}&address=${address}&crypto_currency=ETH`
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if (network === '3') {
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url = 'https://faucet.metamask.io/'
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}
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extension.tabs.create({
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url,
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})
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}
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createShapeShiftTx (depositAddress, depositType) {
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this.configManager.createShapeShiftTx(depositAddress, depositType)
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}
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getNetwork (err) {
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if (err) {
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this.state.network = 'loading'
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this.sendUpdate()
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}
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this.web3.version.getNetwork((err, network) => {
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if (err) {
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this.state.network = 'loading'
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return this.sendUpdate()
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}
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if (global.METAMASK_DEBUG) {
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console.log('web3.getNetwork returned ' + network)
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}
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this.state.network = network
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this.sendUpdate()
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})
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}
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setGasMultiplier (gasMultiplier, cb) {
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try {
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this.configManager.setGasMultiplier(gasMultiplier)
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cb()
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} catch (err) {
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cb(err)
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}
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}
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getStateNetwork () {
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return this.state.network
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}
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markAccountsFound (cb) {
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this.configManager.setLostAccounts([])
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this.sendUpdate()
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cb(null, this.getState())
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}
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// Migrate Old Vault If Any
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// @string password
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//
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// returns Promise()
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//
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// Temporary step used when logging in.
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// Checks if old style (pre-3.0.0) Metamask Vault exists.
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// If so, persists that vault in the new vault format
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// with the provided password, so the other unlock steps
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// may be completed without interruption.
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migrateOldVaultIfAny (password) {
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if (!this.checkIfShouldMigrate()) {
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return Promise.resolve(password)
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}
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const keyringController = this.keyringController
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return this.idStoreMigrator.migratedVaultForPassword(password)
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.then(this.restoreOldVaultAccounts.bind(this))
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.then(this.restoreOldLostAccounts.bind(this))
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.then(keyringController.persistAllKeyrings.bind(keyringController, password))
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.then(() => password)
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}
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checkIfShouldMigrate() {
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return !!this.configManager.getWallet() && !this.configManager.getVault()
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}
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restoreOldVaultAccounts(migratorOutput) {
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const { serialized } = migratorOutput
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return this.keyringController.restoreKeyring(serialized)
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.then(() => migratorOutput)
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}
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restoreOldLostAccounts(migratorOutput) {
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const { lostAccounts } = migratorOutput
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if (lostAccounts) {
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this.configManager.setLostAccounts(lostAccounts.map(acct => acct.address))
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return this.importLostAccounts(migratorOutput)
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}
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return Promise.resolve(migratorOutput)
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}
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// IMPORT LOST ACCOUNTS
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// @Object with key lostAccounts: @Array accounts <{ address, privateKey }>
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// Uses the array's private keys to create a new Simple Key Pair keychain
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// and add it to the keyring controller.
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importLostAccounts ({ lostAccounts }) {
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const privKeys = lostAccounts.map(acct => acct.privateKey)
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return this.keyringController.restoreKeyring({
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type: 'Simple Key Pair',
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data: privKeys,
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})
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}
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}
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