1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
const urlUtil = require('url')
const endOfStream = require('end-of-stream')
const pump = require('pump')
const debounce = require('debounce-stream')
const log = require('loglevel')
const extension = require('extensionizer')
const LocalStorageStore = require('obs-store/lib/localStorage')
const LocalStore = require('./lib/local-store')
const storeTransform = require('obs-store/lib/transform')
const asStream = require('obs-store/lib/asStream')
const ExtensionPlatform = require('./platforms/extension')
const Migrator = require('./lib/migrator/')
const migrations = require('./migrations/')
const PortStream = require('./lib/port-stream.js')
const NotificationManager = require('./lib/notification-manager.js')
const MetamaskController = require('./metamask-controller')
const firstTimeState = require('./first-time-state')
const setupRaven = require('./lib/setupRaven')
const reportFailedTxToSentry = require('./lib/reportFailedTxToSentry')
const setupMetamaskMeshMetrics = require('./lib/setupMetamaskMeshMetrics')
const EdgeEncryptor = require('./edge-encryptor')
const STORAGE_KEY = 'metamask-config'
const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
window.log = log
log.setDefaultLevel(METAMASK_DEBUG ? 'debug' : 'warn')
const platform = new ExtensionPlatform()
const notificationManager = new NotificationManager()
global.METAMASK_NOTIFIER = notificationManager
// setup sentry error reporting
const release = platform.getVersion()
const raven = setupRaven({ release })
// browser check if it is Edge - https://stackoverflow.com/questions/9847580/how-to-detect-safari-chrome-ie-firefox-and-opera-browser
// Internet Explorer 6-11
const isIE = !!document.documentMode
// Edge 20+
const isEdge = !isIE && !!window.StyleMedia
let popupIsOpen = false
let notificationIsOpen = false
let openMetamaskTabsIDs = {}
// state persistence
const diskStore = new LocalStorageStore({ storageKey: STORAGE_KEY })
const localStore = new LocalStore()
let versionedData
// initialization flow
initialize().catch(log.error)
// setup metamask mesh testing container
setupMetamaskMeshMetrics()
async function initialize () {
const initState = await loadStateFromPersistence()
await setupController(initState)
log.debug('MetaMask initialization complete.')
}
//
// State and Persistence
//
async function loadStateFromPersistence () {
// migrations
const migrator = new Migrator({ migrations })
// read from disk
// first from preferred, async API:
versionedData = (await localStore.get()) ||
diskStore.getState() ||
migrator.generateInitialState(firstTimeState)
// migrate data
versionedData = await migrator.migrateData(versionedData)
if (!versionedData) {
throw new Error('MetaMask - migrator returned undefined')
}
// write to disk
if (localStore.isSupported) localStore.set(versionedData)
diskStore.putState(versionedData)
// return just the data
return versionedData.data
}
function setupController (initState) {
//
// MetaMask Controller
//
const controller = new MetamaskController({
// User confirmation callbacks:
showUnconfirmedMessage: triggerUi,
unlockAccountMessage: triggerUi,
showUnapprovedTx: triggerUi,
// initial state
initState,
// platform specific api
platform,
encryptor: isEdge ? new EdgeEncryptor() : undefined,
})
global.metamaskController = controller
// report failed transactions to Sentry
controller.txController.on(`tx:status-update`, (txId, status) => {
if (status !== 'failed') return
const txMeta = controller.txController.txStateManager.getTx(txId)
reportFailedTxToSentry({ raven, txMeta })
})
// setup state persistence
pump(
asStream(controller.store),
debounce(1000),
storeTransform(versionifyData),
storeTransform(syncDataWithExtension),
asStream(diskStore),
(error) => {
log.error('pump hit error', error)
}
)
function versionifyData (state) {
versionedData.data = state
return versionedData
}
function syncDataWithExtension(state) {
if (localStore.isSupported) {
localStore.set(state)
.catch((err) => {
log.error('error setting state in local store:', err)
})
}
return state
}
//
// connect to other contexts
//
extension.runtime.onConnect.addListener(connectRemote)
function connectRemote (remotePort) {
const isMetaMaskInternalProcess = remotePort.name === 'popup' || remotePort.name === 'notification'
const portStream = new PortStream(remotePort)
if (isMetaMaskInternalProcess) {
// communication with popup
popupIsOpen = popupIsOpen || (remotePort.name === 'popup')
controller.setupTrustedCommunication(portStream, 'MetaMask')
// record popup as closed
if (remotePort.sender.url.match(/home.html$/)) {
openMetamaskTabsIDs[remotePort.sender.tab.id] = true
}
if (remotePort.name === 'popup') {
endOfStream(portStream, () => {
popupIsOpen = false
if (remotePort.sender.url.match(/home.html$/)) {
openMetamaskTabsIDs[remotePort.sender.tab.id] = false
}
})
}
if (remotePort.name === 'notification') {
endOfStream(portStream, () => {
notificationIsOpen = false
})
}
} else {
// communication with page
const originDomain = urlUtil.parse(remotePort.sender.url).hostname
controller.setupUntrustedCommunication(portStream, originDomain)
}
}
//
// User Interface setup
//
updateBadge()
controller.txController.on('update:badge', updateBadge)
controller.messageManager.on('updateBadge', updateBadge)
controller.personalMessageManager.on('updateBadge', updateBadge)
// plugin badge text
function updateBadge () {
var label = ''
var unapprovedTxCount = controller.txController.getUnapprovedTxCount()
var unapprovedMsgCount = controller.messageManager.unapprovedMsgCount
var unapprovedPersonalMsgs = controller.personalMessageManager.unapprovedPersonalMsgCount
var unapprovedTypedMsgs = controller.typedMessageManager.unapprovedTypedMessagesCount
var count = unapprovedTxCount + unapprovedMsgCount + unapprovedPersonalMsgs + unapprovedTypedMsgs
if (count) {
label = String(count)
}
extension.browserAction.setBadgeText({ text: label })
extension.browserAction.setBadgeBackgroundColor({ color: '#506F8B' })
}
return Promise.resolve()
}
//
// Etc...
//
// popup trigger
function triggerUi () {
extension.tabs.query({ active: true }, (tabs) => {
const currentlyActiveMetamaskTab = tabs.find(tab => openMetamaskTabsIDs[tab.id])
if (!popupIsOpen && !currentlyActiveMetamaskTab && !notificationIsOpen) notificationManager.showPopup()
notificationIsOpen = true
})
}
// 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'})
}
})
|
