mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-27 04:46:10 +01:00
351 lines
9.8 KiB
JavaScript
351 lines
9.8 KiB
JavaScript
const extend = require('xtend')
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const EthStore = require('eth-store')
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const MetaMaskProvider = require('web3-provider-engine/zero.js')
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const IdentityStore = require('./lib/idStore')
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const messageManager = require('./lib/message-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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module.exports = class MetamaskController {
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constructor (opts) {
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this.opts = opts
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this.listeners = []
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this.configManager = new ConfigManager(opts)
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this.idStore = new IdentityStore({
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configManager: this.configManager,
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})
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this.provider = this.initializeProvider(opts)
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this.ethStore = new EthStore(this.provider)
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this.idStore.setStore(this.ethStore)
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this.messageManager = messageManager
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this.publicConfigStore = this.initPublicConfigStore()
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this.configManager.setCurrentFiat('USD')
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this.configManager.updateConversionRate()
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this.scheduleConversionInterval()
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}
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getState () {
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return extend(
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this.ethStore.getState(),
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this.idStore.getState(),
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this.configManager.getConfig()
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)
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}
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getApi () {
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const idStore = this.idStore
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return {
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getState: (cb) => { cb(null, this.getState()) },
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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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setCurrentFiat: this.setCurrentFiat.bind(this),
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agreeToEthWarning: this.agreeToEthWarning.bind(this),
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// forward directly to idStore
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createNewVault: idStore.createNewVault.bind(idStore),
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recoverFromSeed: idStore.recoverFromSeed.bind(idStore),
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submitPassword: idStore.submitPassword.bind(idStore),
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setSelectedAddress: idStore.setSelectedAddress.bind(idStore),
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approveTransaction: idStore.approveTransaction.bind(idStore),
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cancelTransaction: idStore.cancelTransaction.bind(idStore),
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signMessage: idStore.signMessage.bind(idStore),
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cancelMessage: idStore.cancelMessage.bind(idStore),
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setLocked: idStore.setLocked.bind(idStore),
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clearSeedWordCache: idStore.clearSeedWordCache.bind(idStore),
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exportAccount: idStore.exportAccount.bind(idStore),
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revealAccount: idStore.revealAccount.bind(idStore),
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saveAccountLabel: idStore.saveAccountLabel.bind(idStore),
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tryPassword: idStore.tryPassword.bind(idStore),
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recoverSeed: idStore.recoverSeed.bind(idStore),
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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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}
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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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var payloads = Array.isArray(request) ? request : [request]
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payloads.forEach(function (payload) {
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// Append origin to rpc payload
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payload.origin = originDomain
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// Append origin to signature request
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if (payload.method === 'eth_sendTransaction') {
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payload.params[0].origin = originDomain
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} else if (payload.method === 'eth_sign') {
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payload.params.push({ origin: originDomain })
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}
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})
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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.listeners.forEach((remote) => {
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remote.sendUpdate(this.getState())
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})
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}
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initializeProvider (opts) {
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const idStore = this.idStore
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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 selectedAddress = idStore.getSelectedAddress()
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var result = selectedAddress ? [selectedAddress] : []
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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: (...args) => {
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idStore.signTransaction(...args)
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this.sendUpdate()
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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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idStore.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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idStore.web3 = web3
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idStore.getNetwork()
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provider.on('block', this.processBlock.bind(this))
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provider.on('error', idStore.getNetwork.bind(idStore))
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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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idStoreToPublic(this.idStore.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.idStore.on('update', function (state) {
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storeSetFromObj(publicConfigStore, idStoreToPublic(state))
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})
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// idStore substate
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function idStoreToPublic (state) {
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return {
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selectedAddress: state.selectedAddress,
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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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selectedAddress: 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 idStore = this.idStore
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var state = idStore.getState()
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let err = this.enforceTxValidations(txParams)
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if (err) return onTxDoneCb(err)
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// It's locked
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if (!state.isUnlocked) {
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// Allow the environment to define an unlock message.
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this.opts.unlockAccountMessage()
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idStore.addUnconfirmedTransaction(txParams, onTxDoneCb, noop)
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// It's unlocked
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} else {
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idStore.addUnconfirmedTransaction(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.showUnconfirmedTx(txParams, txData, onTxDoneCb)
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})
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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.idStore.getState()
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if (!state.isUnlocked) {
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this.idStore.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 idStore = this.idStore
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const msgId = idStore.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.idStore._currentState.network === 'loading') {
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this.idStore.getNetwork()
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}
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}
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// config
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//
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agreeToDisclaimer (cb) {
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try {
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this.configManager.setConfirmed(true)
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cb()
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} catch (e) {
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cb(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 (e) {
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cb(null, e)
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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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agreeToEthWarning (cb) {
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try {
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this.configManager.setShouldntShowWarning()
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cb()
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} catch (e) {
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cb(e)
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}
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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.idStore.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.idStore.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.idStore._currentState.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 === '2') {
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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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}
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function noop () {}
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