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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 createUnlockRequestNotification = require('./lib/notifications.js').createUnlockRequestNotification
const createTxNotification = require('./lib/notifications.js').createTxNotification
const createMsgNotification = require('./lib/notifications.js').createMsgNotification
const messageManager = require('./lib/message-manager')
const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
const MetamaskController = require('./metamask-controller')
const STORAGE_KEY = 'metamask-config'
const controller = new MetamaskController({
// User confirmation callbacks:
showUnconfirmedMessage,
unlockAccountMessage,
showUnconfirmedTx,
// Persistence Methods:
setData,
loadData,
})
const idStore = controller.idStore
function unlockAccountMessage () {
createUnlockRequestNotification({
title: 'Account Unlock Request',
})
}
function showUnconfirmedMessage (msgParams, msgId) {
createMsgNotification({
title: 'New Unsigned Message',
msgParams: msgParams,
confirm: idStore.approveMessage.bind(idStore, msgId, noop),
cancel: idStore.cancelMessage.bind(idStore, msgId),
})
}
function showUnconfirmedTx (txParams, txData, onTxDoneCb) {
createTxNotification({
title: 'New Unsigned Transaction',
txParams: txParams,
confirm: idStore.approveTransaction.bind(idStore, txData.id, noop),
cancel: idStore.cancelTransaction.bind(idStore, txData.id),
})
}
//
// connect to other contexts
//
chrome.runtime.onConnect.addListener(connectRemote)
function connectRemote (remotePort) {
var isMetaMaskInternalProcess = (remotePort.name === 'popup')
var portStream = new PortStream(remotePort)
if (isMetaMaskInternalProcess) {
// communication with popup
setupTrustedCommunication(portStream, 'MetaMask')
} 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', () => {
// push updates to popup
controller.ethStore.on('update', controller.sendUpdate)
idStore.on('update', controller.sendUpdate)
// teardown on disconnect
eos(stream, () => {
controller.ethStore.removeListener('update', controller.sendUpdate)
})
})
}
//
// plugin badge text
//
idStore.on('update', updateBadge)
function updateBadge (state) {
var label = ''
var unconfTxs = controller.configManager.unconfirmedTxs()
var unconfTxLen = Object.keys(unconfTxs).length
var unconfMsgs = messageManager.unconfirmedMsgs()
var unconfMsgLen = Object.keys(unconfMsgs).length
var count = unconfTxLen + unconfMsgLen
if (count) {
label = String(count)
}
chrome.browserAction.setBadgeText({ text: label })
chrome.browserAction.setBadgeBackgroundColor({ color: '#506F8B' })
}
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)
}
function noop () {}
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