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
|
global.window = global
const SwGlobalListener = require('sw-stream/lib/sw-global-listener.js')
const connectionListener = new SwGlobalListener(global)
const setupMultiplex = require('../../app/scripts/lib/stream-utils.js').setupMultiplex
const DbController = require('idb-global')
const SwPlatform = require('../../app/scripts/platforms/sw')
const MetamaskController = require('../../app/scripts/metamask-controller')
const Migrator = require('../../app/scripts/lib/migrator/')
const migrations = require('../../app/scripts/migrations/')
const firstTimeState = require('../../app/scripts/first-time-state')
const STORAGE_KEY = 'metamask-config'
const METAMASK_DEBUG = process.env.METAMASK_DEBUG
global.metamaskPopupIsOpen = false
const log = require('loglevel')
global.log = log
log.setDefaultLevel(METAMASK_DEBUG ? 'debug' : 'warn')
global.addEventListener('install', function (event) {
event.waitUntil(global.skipWaiting())
})
global.addEventListener('activate', function (event) {
event.waitUntil(global.clients.claim())
})
log.debug('inside:open')
// state persistence
const dbController = new DbController({
key: STORAGE_KEY,
})
start().catch(log.error)
async function start() {
log.debug('MetaMask initializing...')
const initState = await loadStateFromPersistence()
await setupController(initState)
log.debug('MetaMask initialization complete.')
}
//
// State and Persistence
//
async function loadStateFromPersistence () {
// migrations
const migrator = new Migrator({ migrations })
const initialState = migrator.generateInitialState(firstTimeState)
dbController.initialState = initialState
const versionedData = await dbController.open()
const migratedData = await migrator.migrateData(versionedData)
await dbController.put(migratedData)
return migratedData.data
}
async function setupController (initState, client) {
//
// MetaMask Controller
//
const platform = new SwPlatform()
const controller = new MetamaskController({
// platform specific implementation
platform,
// User confirmation callbacks:
showUnconfirmedMessage: noop,
unlockAccountMessage: noop,
showUnapprovedTx: noop,
// initial state
initState,
})
global.metamaskController = controller
controller.store.subscribe(async (state) => {
try {
const versionedData = await versionifyData(state)
await dbController.put(versionedData)
} catch (e) { console.error('METAMASK Error:', e) }
})
async function versionifyData (state) {
const rawData = await dbController.get()
return {
data: state,
meta: rawData.meta,
}
}
//
// connect to other contexts
//
connectionListener.on('remote', (portStream, messageEvent) => {
log.debug('REMOTE CONECTION FOUND***********')
connectRemote(portStream, messageEvent.data.context)
})
function connectRemote (connectionStream, context) {
var isMetaMaskInternalProcess = (context === 'popup')
if (isMetaMaskInternalProcess) {
// communication with popup
controller.setupTrustedCommunication(connectionStream, 'MetaMask')
global.metamaskPopupIsOpen = true
} else {
// communication with page
setupUntrustedCommunication(connectionStream, context)
}
}
function setupUntrustedCommunication (connectionStream, originDomain) {
// setup multiplexing
var mx = setupMultiplex(connectionStream)
// connect features
controller.setupProviderConnection(mx.createStream('provider'), originDomain)
controller.setupPublicConfig(mx.createStream('publicConfig'))
}
}
// // this will be useful later but commented out for linting for now (liiiinting)
// function sendMessageToAllClients (message) {
// global.clients.matchAll().then(function (clients) {
// clients.forEach(function (client) {
// client.postMessage(message)
// })
// })
// }
function noop () {}
|
