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metamask-extension/app/scripts/lib/idStore-migrator.js
2016-12-19 19:32:59 -08:00

76 lines
1.9 KiB
JavaScript

const IdentityStore = require('./idStore')
const HdKeyring = require('../keyrings/hd')
const sigUtil = require('./sig-util')
const normalize = sigUtil.normalize
const denodeify = require('denodeify')
module.exports = class IdentityStoreMigrator {
constructor ({ configManager }) {
this.configManager = configManager
const hasOldVault = this.hasOldVault()
if (!hasOldVault) {
this.idStore = new IdentityStore({ configManager })
}
}
migratedVaultForPassword (password) {
const hasOldVault = this.hasOldVault()
const configManager = this.configManager
if (!this.idStore) {
this.idStore = new IdentityStore({ configManager })
}
if (!hasOldVault) {
return Promise.resolve(null)
}
const idStore = this.idStore
const submitPassword = denodeify(idStore.submitPassword.bind(idStore))
return submitPassword(password)
.then(() => {
const serialized = this.serializeVault()
return this.checkForLostAccounts(serialized)
})
}
serializeVault () {
const mnemonic = this.idStore._idmgmt.getSeed()
const numberOfAccounts = this.idStore._getAddresses().length
return {
type: 'HD Key Tree',
data: { mnemonic, numberOfAccounts },
}
}
checkForLostAccounts (serialized) {
const hd = new HdKeyring()
return hd.deserialize(serialized.data)
.then((hexAccounts) => {
const newAccounts = hexAccounts.map(normalize)
const oldAccounts = this.idStore._getAddresses().map(normalize)
const lostAccounts = oldAccounts.reduce((result, account) => {
if (newAccounts.includes(account)) {
return result
} else {
result.push(account)
return result
}
}, [])
return {
serialized,
lostAccounts,
}
})
}
hasOldVault () {
const wallet = this.configManager.getWallet()
return wallet
}
}