mirror of
https://github.com/gorhill/uMatrix.git
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204 lines
6.6 KiB
JavaScript
204 lines
6.6 KiB
JavaScript
/*******************************************************************************
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µMatrix - a Chromium browser extension to black/white list requests.
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Copyright (C) 2014 Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uMatrix
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*/
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/* global chrome, uDom */
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/******************************************************************************/
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uDom.onLoad(function() {
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/******************************************************************************/
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var backupUserDataToFile = function() {
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var allUserData = {
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timeStamp: Date.now(),
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version: '',
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userSettings: {},
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scopes: '',
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remoteBlacklists: {},
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ubiquitousBlacklist: '',
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ubiquitousWhitelist: ''
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};
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var userWhitelistReady = function(details) {
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allUserData.ubiquitousWhitelist = details.content;
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chrome.downloads.download({
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'url': 'data:text/plain,' + encodeURIComponent(JSON.stringify(allUserData)),
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'filename': 'umatrix-alluserdata-backup.txt',
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'saveAs': true
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});
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};
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var userBlacklistReady = function(details) {
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allUserData.ubiquitousBlacklist = details.content;
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messaging.ask({ what: 'readUserUbiquitousAllowRules' }, userWhitelistReady);
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};
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var ruleDataReady = function(store) {
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allUserData.version = store.version;
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allUserData.scopes = store.scopes;
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allUserData.remoteBlacklists = store.remoteBlacklists;
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messaging.ask({ what: 'readUserUbiquitousBlockRules' }, userBlacklistReady);
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};
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var userSettingsReady = function(store) {
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allUserData.userSettings = store;
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chrome.storage.local.get(['version', 'scopes', 'remoteBlacklists'], ruleDataReady);
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};
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messaging.ask({ what: 'readUserSettings' }, userSettingsReady);
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};
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/******************************************************************************/
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function restoreUserDataFromFile() {
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var restartCountdown = 4;
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var doCountdown = function() {
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restartCountdown -= 1;
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if ( restartCountdown > 0 ) {
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return;
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}
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chrome.runtime.reload();
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};
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var restoreBackup = function(data) {
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chrome.storage.local.set(data.userSettings, doCountdown);
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var store = {
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'version': data.version,
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'scopes': data.scopes
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};
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// This case may happen if data was backed up without the user having
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// changed default selection of lists.
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if ( data.remoteBlacklists !== undefined ) {
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store.remoteBlacklists = data.remoteBlacklists;
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}
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chrome.storage.local.set(store, doCountdown);
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messaging.ask({
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what: 'writeUserUbiquitousBlockRules',
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content: data.ubiquitousBlacklist
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},
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doCountdown
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);
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messaging.ask({
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what: 'writeUserUbiquitousAllowRules',
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content: data.ubiquitousWhitelist
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},
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doCountdown
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);
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};
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var validateBackup = function(s) {
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var data;
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try {
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data = JSON.parse(s);
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}
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catch (e) {
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data = undefined;
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}
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if ( typeof data !== 'object' ||
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typeof data.timeStamp !== 'number' ||
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typeof data.version !== 'string' ||
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typeof data.userSettings !== 'object' ||
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typeof data.scopes !== 'string' ||
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typeof data.ubiquitousBlacklist !== 'string' ||
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typeof data.ubiquitousWhitelist !== 'string' ) {
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alert('File content is not valid backed up data.');
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}
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return data;
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};
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var fileReaderOnLoadHandler = function() {
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var data = validateBackup(this.result);
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if ( !data ) {
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return;
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}
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var time = new Date(data.timeStamp);
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var msg = chrome.i18n
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.getMessage('aboutUserDataRestoreConfirm')
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.replace('{{time}}', time.toLocaleString());
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var proceed = window.confirm(msg);
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if ( proceed ) {
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restoreBackup(data);
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}
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};
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var file = this.files[0];
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if ( file === undefined || file.name === '' ) {
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return;
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}
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if ( file.type.indexOf('text') !== 0 ) {
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return;
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}
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var fr = new FileReader();
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fr.onload = fileReaderOnLoadHandler;
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fr.readAsText(file);
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}
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/******************************************************************************/
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var startRestoreFilePicker = function() {
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var input = document.getElementById('restoreFilePicker');
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// Reset to empty string, this will ensure an change event is properly
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// triggered if the user pick a file, even if it is the same as the last
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// one picked.
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input.value = '';
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input.click();
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};
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/******************************************************************************/
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var resetUserData = function() {
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messaging.tell({
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what: 'gotoExtensionURL',
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url: 'setup.html'
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});
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};
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/******************************************************************************/
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messaging.start('about.js');
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/******************************************************************************/
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(function() {
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uDom('#aboutVersion').html(chrome.runtime.getManifest().version);
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var renderStats = function(details) {
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var template = chrome.i18n.getMessage('aboutStorageUsed');
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var percent = 0;
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if ( details.storageQuota ) {
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percent = (details.storageUsed / details.storageQuota * 100).toFixed(1);
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}
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uDom('#aboutStorageUsed').html(template.replace('{{storageUsed}}', percent));
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};
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messaging.ask({ what: 'getSomeStats' }, renderStats);
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})();
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/******************************************************************************/
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uDom('#backupUserDataButton').on('click', backupUserDataToFile);
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uDom('#restoreUserDataButton').on('click', startRestoreFilePicker);
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uDom('#restoreFilePicker').on('change', restoreUserDataFromFile);
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uDom('#resetUserDataButton').on('click', resetUserData);
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/******************************************************************************/
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});
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