138 lines
3.5 KiB
JavaScript
138 lines
3.5 KiB
JavaScript
'use strict'
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const fs = require('fs')
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const path = require('path')
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const { remote } = require('electron')
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const { app } = remote
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const getChromeStoragePath = (storageType, extensionId) => {
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return path.join(
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app.getPath('userData'), `/Chrome Storage/${extensionId}-${storageType}.json`)
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}
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const mkdirp = (dir, callback) => {
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fs.mkdir(dir, (error) => {
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if (error && error.code === 'ENOENT') {
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mkdirp(path.dirname(dir), (error) => {
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if (!error) {
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mkdirp(dir, callback)
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}
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})
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} else if (error && error.code === 'EEXIST') {
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callback(null)
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} else {
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callback(error)
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}
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})
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}
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const readChromeStorageFile = (storageType, extensionId, cb) => {
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const filePath = getChromeStoragePath(storageType, extensionId)
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fs.readFile(filePath, 'utf8', (err, data) => {
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if (err && err.code === 'ENOENT') {
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return cb(null, null)
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}
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cb(err, data)
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})
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}
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const writeChromeStorageFile = (storageType, extensionId, data, cb) => {
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const filePath = getChromeStoragePath(storageType, extensionId)
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mkdirp(path.dirname(filePath), err => {
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if (err) { /* we just ignore the errors of mkdir or mkdirp */ }
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fs.writeFile(filePath, data, cb)
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})
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}
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const getStorage = (storageType, extensionId, cb) => {
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readChromeStorageFile(storageType, extensionId, (err, data) => {
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if (err) throw err
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if (!cb) throw new TypeError('No callback provided')
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if (data !== null) {
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cb(JSON.parse(data))
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} else {
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// Disabled due to false positive in StandardJS
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// eslint-disable-next-line standard/no-callback-literal
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cb({})
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}
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})
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}
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const setStorage = (storageType, extensionId, storage, cb) => {
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const json = JSON.stringify(storage)
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writeChromeStorageFile(storageType, extensionId, json, err => {
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if (err) throw err
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if (cb) cb()
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})
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}
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const getStorageManager = (storageType, extensionId) => {
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return {
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get (keys, callback) {
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getStorage(storageType, extensionId, storage => {
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if (keys == null) return callback(storage)
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let defaults = {}
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switch (typeof keys) {
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case 'string':
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keys = [keys]
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break
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case 'object':
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if (!Array.isArray(keys)) {
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defaults = keys
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keys = Object.keys(keys)
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}
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break
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}
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// Disabled due to false positive in StandardJS
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// eslint-disable-next-line standard/no-callback-literal
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if (keys.length === 0) return callback({})
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const items = {}
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keys.forEach(function (key) {
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let value = storage[key]
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if (value == null) value = defaults[key]
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items[key] = value
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})
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callback(items)
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})
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},
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set (items, callback) {
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getStorage(storageType, extensionId, storage => {
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Object.keys(items).forEach(function (name) {
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storage[name] = items[name]
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})
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setStorage(storageType, extensionId, storage, callback)
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})
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},
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remove (keys, callback) {
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getStorage(storageType, extensionId, storage => {
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if (!Array.isArray(keys)) {
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keys = [keys]
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}
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keys.forEach(function (key) {
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delete storage[key]
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})
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setStorage(storageType, extensionId, storage, callback)
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})
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},
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clear (callback) {
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setStorage(storageType, extensionId, {}, callback)
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}
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}
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}
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module.exports = {
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setup: extensionId => ({
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sync: getStorageManager('sync', extensionId),
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local: getStorageManager('local', extensionId)
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})
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}
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