mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-23 09:52:26 +01:00
171 lines
3.9 KiB
JavaScript
171 lines
3.9 KiB
JavaScript
const Migrator = require('pojo-migrator')
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const extend = require('xtend')
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const STORAGE_KEY = 'metamask-config'
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var DEFAULT_RPC = 'https://rawtestrpc.metamask.io/'
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/* The config-manager is a convenience object
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* wrapping a pojo-migrator.
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*
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* It exists mostly to allow the creation of
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* convenience methods to access and persist
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* particular portions of the state.
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*/
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module.exports = ConfigManager
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function ConfigManager() {
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/* The migrator exported on the config-manager
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* has two methods the user should be concerned with:
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*
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* getData(), which returns the app-consumable data object
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* saveData(), which persists the app-consumable data object.
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*/
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this.migrator = new Migrator({
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// Migrations must start at version 1 or later.
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// They are objects with a `version` number
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// and a `migrate` function.
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//
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// The `migrate` function receives the previous
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// config data format, and returns the new one.
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migrations: [],
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// How to load initial config.
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// Includes step on migrating pre-pojo-migrator data.
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loadData: loadData,
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// How to persist migrated config.
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setData: function(data) {
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window.localStorage[STORAGE_KEY] = JSON.stringify(data)
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},
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})
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}
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ConfigManager.prototype.setConfig = function(config) {
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var data = this.migrator.getData()
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data.config = config
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this.setData(data)
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}
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ConfigManager.prototype.getConfig = function() {
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var data = this.migrator.getData()
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if ('config' in data) {
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return data.config
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} else {
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return {
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provider: {
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type: 'rpc',
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rpcTarget: DEFAULT_RPC,
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}
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}
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}
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}
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ConfigManager.prototype.setRpcTarget = function(rpcUrl) {
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var config = this.getConfig()
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config.provider = {
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type: 'rpc',
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rpcTarget: rpcUrl,
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}
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this.setConfig(config)
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}
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ConfigManager.prototype.useEtherscanProvider = function() {
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var config = this.getConfig()
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config.provider = {
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type: 'etherscan',
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}
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this.setConfig(config)
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}
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ConfigManager.prototype.getProvider = function() {
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var config = this.getConfig()
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return config.provider
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}
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ConfigManager.prototype.setData = function(data) {
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this.migrator.saveData(data)
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}
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ConfigManager.prototype.getData = function() {
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return this.migrator.getData()
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}
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ConfigManager.prototype.setWallet = function(wallet) {
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var data = this.migrator.getData()
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data.wallet = wallet
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this.setData(data)
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}
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ConfigManager.prototype.getWallet = function() {
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return this.migrator.getData().wallet
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}
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// Takes a boolean
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ConfigManager.prototype.setShowSeedWords = function(should) {
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var data = this.migrator.getData()
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data.showSeedWords = should
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this.setData(data)
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}
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ConfigManager.prototype.getShouldShowSeedWords = function() {
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var data = this.migrator.getData()
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return data.showSeedWords
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}
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ConfigManager.prototype.getCurrentRpcAddress = function() {
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var config = this.getConfig()
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if (!config) return null
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return config.provider && config.provider.rpcTarget ? config.provider.rpcTarget : DEFAULT_RPC
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}
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ConfigManager.prototype.clearWallet = function() {
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var data = this.getConfig()
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delete data.wallet
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this.setData(data)
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}
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function loadData() {
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var oldData = getOldStyleData()
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var newData
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try {
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newData = JSON.parse(window.localStorage[STORAGE_KEY])
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} catch (e) {}
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var data = extend({
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version: 0,
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data: {
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config: {
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rpcTarget: DEFAULT_RPC,
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}
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}
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}, oldData ? oldData : null, newData ? newData : null)
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return data
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}
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function getOldStyleData() {
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var config, wallet, seedWords
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var result = {
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meta: { version: 0 },
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data: {},
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}
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try {
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config = JSON.parse(window.localStorage['config'])
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result.data.config = config
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} catch (e) {}
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try {
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wallet = JSON.parse(window.localStorage['lightwallet'])
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result.data.wallet = wallet
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} catch (e) {}
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try {
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seedWords = window.localStorage['seedWords']
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result.data.seedWords = seedWords
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} catch (e) {}
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return result
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}
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