mirror of
https://github.com/gorhill/uMatrix.git
synced 2024-06-28 02:50:39 +12:00
451 lines
14 KiB
JavaScript
451 lines
14 KiB
JavaScript
/*******************************************************************************
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µMatrix - a Chromium browser extension to black/white list requests.
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Copyright (C) 2014-2015 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 vAPI, uDom */
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/******************************************************************************/
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(function() {
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'use strict';
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/******************************************************************************/
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var listDetails = {};
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var externalHostsFiles = '';
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var cacheWasPurged = false;
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var needUpdate = false;
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var hasCachedContent = false;
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/******************************************************************************/
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var onMessage = function(msg) {
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switch ( msg.what ) {
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case 'loadHostsFilesCompleted':
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renderHostsFiles();
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break;
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case 'forceUpdateAssetsProgress':
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renderBusyOverlay(true, msg.progress);
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if ( msg.done ) {
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messager.send({ what: 'reloadHostsFiles' });
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}
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break;
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default:
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break;
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}
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};
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var messager = vAPI.messaging.channel('hosts-files.js', onMessage);
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/******************************************************************************/
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var renderNumber = function(value) {
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return value.toLocaleString();
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};
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/******************************************************************************/
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// TODO: get rid of background page dependencies
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var renderHostsFiles = function() {
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var listEntryTemplate = uDom('#templates .listEntry');
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var listStatsTemplate = vAPI.i18n('hostsFilesPerFileStats');
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var lastUpdateString = vAPI.i18n('hostsFilesLastUpdate');
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var renderElapsedTimeToString = vAPI.i18n.renderElapsedTimeToString;
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var reExternalHostFile = /^https?:/;
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// Assemble a pretty blacklist name if possible
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var listNameFromListKey = function(listKey) {
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var list = listDetails.current[listKey] || listDetails.available[listKey];
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var listTitle = list ? list.title : '';
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if ( listTitle === '' ) {
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return listKey;
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}
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return listTitle;
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};
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var liFromListEntry = function(listKey) {
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var elem, text;
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var entry = listDetails.available[listKey];
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var li = listEntryTemplate.clone();
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if ( entry.off !== true ) {
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li.descendants('input').attr('checked', '');
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}
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elem = li.descendants('a:nth-of-type(1)');
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elem.attr('href', encodeURI(listKey));
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elem.text(listNameFromListKey(listKey) + '\u200E');
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elem = li.descendants('a:nth-of-type(2)');
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if ( entry.homeDomain ) {
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elem.attr('href', 'http://' + encodeURI(entry.homeHostname));
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elem.text('(' + entry.homeDomain + ')');
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elem.css('display', '');
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}
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elem = li.descendants('span:nth-of-type(1)');
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text = listStatsTemplate
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.replace('{{used}}', renderNumber(!entry.off && !isNaN(+entry.entryUsedCount) ? entry.entryUsedCount : 0))
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.replace('{{total}}', !isNaN(+entry.entryCount) ? renderNumber(entry.entryCount) : '?');
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elem.text(text);
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// https://github.com/gorhill/uBlock/issues/78
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// Badge for non-secure connection
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var remoteURL = listKey;
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if ( remoteURL.lastIndexOf('http:', 0) !== 0 ) {
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remoteURL = entry.homeURL || '';
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}
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if ( remoteURL.lastIndexOf('http:', 0) === 0 ) {
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li.descendants('span.status.unsecure').css('display', '');
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}
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// https://github.com/chrisaljoudi/uBlock/issues/104
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var asset = listDetails.cache[listKey] || {};
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// Badge for update status
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if ( entry.off !== true ) {
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if ( asset.repoObsolete ) {
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li.descendants('span.status.new').css('display', '');
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needUpdate = true;
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} else if ( asset.cacheObsolete ) {
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li.descendants('span.status.obsolete').css('display', '');
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needUpdate = true;
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} else if ( entry.external && !asset.cached ) {
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li.descendants('span.status.obsolete').css('display', '');
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needUpdate = true;
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}
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}
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// In cache
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if ( asset.cached ) {
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elem = li.descendants('span.status.purge');
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elem.css('display', '');
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elem.attr('title', lastUpdateString.replace('{{ago}}', renderElapsedTimeToString(asset.lastModified)));
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hasCachedContent = true;
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}
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return li;
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};
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var onListsReceived = function(details) {
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// Before all, set context vars
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listDetails = details;
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needUpdate = false;
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hasCachedContent = false;
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var availableLists = details.available;
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var listKeys = Object.keys(details.available);
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// Sort works this way:
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// - Send /^https?:/ items at the end (custom hosts file URL)
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listKeys.sort(function(a, b) {
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var ta = availableLists[a].title || a;
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var tb = availableLists[b].title || b;
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if ( reExternalHostFile.test(ta) === reExternalHostFile.test(tb) ) {
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return ta.localeCompare(tb);
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}
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if ( reExternalHostFile.test(tb) ) {
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return -1;
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}
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return 1;
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});
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var ulList = uDom('#lists').empty();
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for ( var i = 0; i < listKeys.length; i++ ) {
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ulList.append(liFromListEntry(listKeys[i]));
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}
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uDom('#listsOfBlockedHostsPrompt').text(
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vAPI.i18n('hostsFilesStats').replace(
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'{{blockedHostnameCount}}',
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renderNumber(details.blockedHostnameCount)
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)
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);
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uDom('#autoUpdate').prop('checked', listDetails.autoUpdate === true);
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renderWidgets();
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renderBusyOverlay(details.manualUpdate, details.manualUpdateProgress);
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};
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messager.send({ what: 'getLists' }, onListsReceived);
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};
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/******************************************************************************/
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// Progress must be normalized to [0, 1], or can be undefined.
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var renderBusyOverlay = function(state, progress) {
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progress = progress || {};
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var showProgress = typeof progress.value === 'number';
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if ( showProgress ) {
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uDom('#busyOverlay > div:nth-of-type(2) > div:first-child').css(
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'width',
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(progress.value * 100).toFixed(1) + '%'
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);
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var text = progress.text || '';
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if ( text !== '' ) {
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uDom('#busyOverlay > div:nth-of-type(2) > div:last-child').text(text);
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}
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}
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uDom('#busyOverlay > div:nth-of-type(2)').css('display', showProgress ? '' : 'none');
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uDom('body').toggleClass('busy', !!state);
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};
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/******************************************************************************/
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// This is to give a visual hint that the selection of blacklists has changed.
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var renderWidgets = function() {
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uDom('#buttonApply').toggleClass('disabled', !listsSelectionChanged());
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uDom('#buttonUpdate').toggleClass('disabled', !listsContentChanged());
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uDom('#buttonPurgeAll').toggleClass('disabled', !hasCachedContent);
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};
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/******************************************************************************/
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// Return whether selection of lists changed.
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var listsSelectionChanged = function() {
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if ( cacheWasPurged ) {
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return true;
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}
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var availableLists = listDetails.available;
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var currentLists = listDetails.current;
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var location, availableOff, currentOff;
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// This check existing entries
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for ( location in availableLists ) {
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if ( availableLists.hasOwnProperty(location) === false ) {
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continue;
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}
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availableOff = availableLists[location].off === true;
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currentOff = currentLists[location] === undefined || currentLists[location].off === true;
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if ( availableOff !== currentOff ) {
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return true;
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}
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}
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// This check removed entries
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for ( location in currentLists ) {
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if ( currentLists.hasOwnProperty(location) === false ) {
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continue;
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}
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currentOff = currentLists[location].off === true;
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availableOff = availableLists[location] === undefined || availableLists[location].off === true;
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if ( availableOff !== currentOff ) {
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return true;
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}
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}
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return false;
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};
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/******************************************************************************/
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// Return whether content need update.
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var listsContentChanged = function() {
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return needUpdate;
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};
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/******************************************************************************/
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// This is to give a visual hint that the selection of blacklists has changed.
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var updateWidgets = function() {
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uDom('#buttonApply').toggleClass('disabled', !listsSelectionChanged());
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uDom('#buttonUpdate').toggleClass('disabled', !listsContentChanged());
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uDom('#buttonPurgeAll').toggleClass('disabled', !hasCachedContent);
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uDom('body').toggleClass('busy', false);
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};
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/******************************************************************************/
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var onListCheckboxChanged = function() {
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var href = uDom(this).parent().descendants('a').first().attr('href');
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if ( typeof href !== 'string' ) {
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return;
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}
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if ( listDetails.available[href] === undefined ) {
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return;
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}
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listDetails.available[href].off = !this.checked;
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updateWidgets();
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};
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/******************************************************************************/
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var onListLinkClicked = function(ev) {
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messager.send({
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what: 'gotoExtensionURL',
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url: 'asset-viewer.html?url=' + uDom(this).attr('href')
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});
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ev.preventDefault();
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};
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/******************************************************************************/
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var onPurgeClicked = function() {
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var button = uDom(this);
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var li = button.parent();
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var href = li.descendants('a').first().attr('href');
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if ( !href ) {
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return;
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}
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messager.send({ what: 'purgeCache', path: href });
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button.remove();
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if ( li.descendants('input').first().prop('checked') ) {
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cacheWasPurged = true;
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updateWidgets();
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}
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};
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/******************************************************************************/
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var selectHostsFiles = function(callback) {
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var switches = [];
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var lis = uDom('#lists .listEntry'), li;
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var i = lis.length;
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while ( i-- ) {
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li = lis.at(i);
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switches.push({
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location: li.descendants('a').attr('href'),
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off: li.descendants('input').prop('checked') === false
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});
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}
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messager.send({
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what: 'selectHostsFiles',
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switches: switches
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}, callback);
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};
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/******************************************************************************/
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var buttonApplyHandler = function() {
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uDom('#buttonApply').removeClass('enabled');
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renderBusyOverlay(true);
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var onSelectionDone = function() {
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messager.send({ what: 'reloadHostsFiles' });
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};
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selectHostsFiles(onSelectionDone);
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cacheWasPurged = false;
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};
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/******************************************************************************/
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var buttonUpdateHandler = function() {
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uDom('#buttonUpdate').removeClass('enabled');
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if ( needUpdate ) {
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renderBusyOverlay(true);
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var onSelectionDone = function() {
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messager.send({ what: 'forceUpdateAssets' });
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};
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selectHostsFiles(onSelectionDone);
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cacheWasPurged = false;
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}
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};
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/******************************************************************************/
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var buttonPurgeAllHandler = function() {
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uDom('#buttonPurgeAll').removeClass('enabled');
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renderBusyOverlay(true);
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var onCompleted = function() {
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cacheWasPurged = true;
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renderHostsFiles();
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};
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messager.send({ what: 'purgeAllCaches' }, onCompleted);
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};
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/******************************************************************************/
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var autoUpdateCheckboxChanged = function() {
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messager.send({
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what: 'userSettings',
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name: 'autoUpdate',
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value: this.checked
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});
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};
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/******************************************************************************/
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var renderExternalLists = function() {
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var onReceived = function(details) {
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uDom('#externalHostsFiles').val(details);
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externalHostsFiles = details;
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};
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messager.send({ what: 'userSettings', name: 'externalHostsFiles' }, onReceived);
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};
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/******************************************************************************/
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var externalListsChangeHandler = function() {
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uDom('#externalListsParse').prop(
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'disabled',
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this.value.trim() === externalHostsFiles
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);
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};
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/******************************************************************************/
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var externalListsApplyHandler = function() {
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externalHostsFiles = uDom('#externalHostsFiles').val();
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messager.send({
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what: 'userSettings',
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name: 'externalHostsFiles',
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value: externalHostsFiles
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});
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renderHostsFiles();
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uDom('#externalListsParse').prop('disabled', true);
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};
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/******************************************************************************/
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uDom.onLoad(function() {
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uDom('#autoUpdate').on('change', autoUpdateCheckboxChanged);
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uDom('#buttonApply').on('click', buttonApplyHandler);
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uDom('#buttonUpdate').on('click', buttonUpdateHandler);
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uDom('#buttonPurgeAll').on('click', buttonPurgeAllHandler);
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uDom('#lists').on('change', '.listEntry > input', onListCheckboxChanged);
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uDom('#lists').on('click', '.listEntry > a:nth-of-type(1)', onListLinkClicked);
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uDom('#lists').on('click', 'span.purge', onPurgeClicked);
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uDom('#externalHostsFiles').on('input', externalListsChangeHandler);
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uDom('#externalListsParse').on('click', externalListsApplyHandler);
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renderHostsFiles();
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renderExternalLists();
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});
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/******************************************************************************/
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})();
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