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const urlUtil = require('url')
const extend = require('xtend')
const Dnode = require('dnode')
const eos = require('end-of-stream')
const PortStream = require('./lib/port-stream.js')
const notification = require('./lib/notifications.js')
const messageManager = require('./lib/message-manager')
const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
const MetamaskController = require('./metamask-controller')
const extension = require('./lib/extension')
const STORAGE_KEY = 'metamask-config'
const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
var popupIsOpen = false
const controller = new MetamaskController({
// User confirmation callbacks:
showUnconfirmedMessage: triggerUi,
unlockAccountMessage: triggerUi,
showUnapprovedTx: triggerUi,
// Persistence Methods:
setData,
loadData,
})
const keyringController = controller.keyringController
const txManager = controller.txManager
function triggerUi () {
if (!popupIsOpen) notification.show()
}
// On first install, open a window to MetaMask website to how-it-works.
extension.runtime.onInstalled.addListener(function (details) {
if ((details.reason === 'install') && (!METAMASK_DEBUG)) {
extension.tabs.create({url: 'https://metamask.io/#how-it-works'})
}
})
//
// connect to other contexts
//
extension.runtime.onConnect.addListener(connectRemote)
function connectRemote (remotePort) {
var isMetaMaskInternalProcess = remotePort.name === 'popup' || remotePort.name === 'notification'
var portStream = new PortStream(remotePort)
if (isMetaMaskInternalProcess) {
// communication with popup
popupIsOpen = remotePort.name === 'popup'
setupTrustedCommunication(portStream, 'MetaMask', remotePort.name)
} else {
// communication with page
var originDomain = urlUtil.parse(remotePort.sender.url).hostname
setupUntrustedCommunication(portStream, originDomain)
}
}
function setupUntrustedCommunication (connectionStream, originDomain) {
// setup multiplexing
var mx = setupMultiplex(connectionStream)
// connect features
controller.setupProviderConnection(mx.createStream('provider'), originDomain)
controller.setupPublicConfig(mx.createStream('publicConfig'))
}
function setupTrustedCommunication (connectionStream, originDomain) {
// setup multiplexing
var mx = setupMultiplex(connectionStream)
// connect features
setupControllerConnection(mx.createStream('controller'))
controller.setupProviderConnection(mx.createStream('provider'), originDomain)
}
//
// remote features
//
function setupControllerConnection (stream) {
controller.stream = stream
var api = controller.getApi()
var dnode = Dnode(api)
stream.pipe(dnode).pipe(stream)
dnode.on('remote', (remote) => {
// push updates to popup
controller.ethStore.on('update', controller.sendUpdate.bind(controller))
controller.listeners.push(remote)
keyringController.on('update', controller.sendUpdate.bind(controller))
// teardown on disconnect
eos(stream, () => {
controller.ethStore.removeListener('update', controller.sendUpdate.bind(controller))
popupIsOpen = false
})
})
}
//
// plugin badge text
//
txManager.on('update', updateBadge)
function updateBadge () {
var label = ''
var unapprovedTxCount = controller.txManager.unapprovedTxCount
var unconfMsgs = messageManager.unconfirmedMsgs()
var unconfMsgLen = Object.keys(unconfMsgs).length
var count = unapprovedTxCount + unconfMsgLen
if (count) {
label = String(count)
}
extension.browserAction.setBadgeText({ text: label })
extension.browserAction.setBadgeBackgroundColor({ color: '#506F8B' })
}
// data :: setters/getters
function loadData () {
var oldData = getOldStyleData()
var newData
try {
newData = JSON.parse(window.localStorage[STORAGE_KEY])
} catch (e) {}
var data = extend({
meta: {
version: 0,
},
data: {
config: {
provider: {
type: 'testnet',
},
},
},
}, oldData || null, newData || null)
return data
}
function getOldStyleData () {
var config, wallet, seedWords
var result = {
meta: { version: 0 },
data: {},
}
try {
config = JSON.parse(window.localStorage['config'])
result.data.config = config
} catch (e) {}
try {
wallet = JSON.parse(window.localStorage['lightwallet'])
result.data.wallet = wallet
} catch (e) {}
try {
seedWords = window.localStorage['seedWords']
result.data.seedWords = seedWords
} catch (e) {}
return result
}
function setData (data) {
window.localStorage[STORAGE_KEY] = JSON.stringify(data)
}
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