mirror of
https://github.com/gorhill/uBlock.git
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167 lines
5.3 KiB
JavaScript
167 lines
5.3 KiB
JavaScript
/*******************************************************************************
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µBlock - a Chromium browser extension to block 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/uBlock
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*/
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/* global chrome, µBlock */
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/******************************************************************************/
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(function(){
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function onTabCreated(tab) {
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// Can this happen?
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if ( tab.id < 0 || !tab.url || tab.url === '' ) {
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return;
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}
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µBlock.bindTabToPageStats(tab.id, tab.url);
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}
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chrome.tabs.onCreated.addListener(onTabCreated);
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function onTabUpdated(tabId, changeInfo, tab) {
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// Can this happen?
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if ( !tab.url || tab.url === '' ) {
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return;
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}
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if ( changeInfo.url ) {
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µBlock.bindTabToPageStats(tabId, tab.url);
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µBlock.updateBadge(tabId);
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}
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}
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chrome.tabs.onUpdated.addListener(onTabUpdated);
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function onTabRemoved(tabId) {
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if ( tabId < 0 ) {
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return;
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}
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µBlock.unbindTabFromPageStats(tabId);
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}
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chrome.tabs.onRemoved.addListener(onTabRemoved);
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function onBeforeNavigateCallback(details) {
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if ( details.frameId > 0 ) {
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return;
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}
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µBlock.bindTabToPageStats(details.tabId, details.url);
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}
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chrome.webNavigation.onBeforeNavigate.addListener(onBeforeNavigateCallback);
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// Initialize internal state with maybe already existing tabs
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chrome.tabs.query({ url: '<all_urls>' }, function(tabs) {
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var i = tabs.length;
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while ( i-- ) {
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µBlock.bindTabToPageStats(tabs[i].id, tabs[i].url);
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}
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});
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})();
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/******************************************************************************/
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/******************************************************************************/
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// https://github.com/gorhill/httpswitchboard/issues/303
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// Some kind of trick going on here:
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// Any scheme other than 'http' and 'https' is remapped into a fake
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// URL which trick the rest of µBlock into being able to process an
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// otherwise unmanageable scheme. µBlock needs web page to have a proper
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// hostname to work properly, so just like the 'chromium-behind-the-scene'
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// fake domain name, we map unknown schemes into a fake '{scheme}-scheme'
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// hostname. This way, for a specific scheme you can create scope with
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// rules which will apply only to that scheme.
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µBlock.normalizePageURL = function(pageURL) {
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var uri = this.URI.set(pageURL);
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if ( uri.scheme === 'https' || uri.scheme === 'http' ) {
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return uri.normalizedURI();
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}
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return '';
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}
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/******************************************************************************/
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// Create an entry for the tab if it doesn't exist.
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µBlock.bindTabToPageStats = function(tabId, pageURL) {
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// First unbind whatever page store is bound to the tab id.
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this.unbindTabFromPageStats(tabId);
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// https://github.com/gorhill/httpswitchboard/issues/303
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// Normalize to a page-URL.
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pageURL = this.normalizePageURL(pageURL);
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// do not create stats store for urls which are of no interests
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if ( pageURL === '' ) {
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return null;
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}
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// Bring back existing page store or create new one.
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var pageStore = this.pageStores[tabId];
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if ( !pageStore ) {
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var k = pageURL + ' ' + tabId;
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pageStore = this.pageStoreDump[k];
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if ( pageStore ) {
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delete this.pageStoreDump[k];
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}
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}
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if ( !pageStore ) {
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pageStore = this.PageStore.factory(tabId, pageURL);
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pageStore.perLoadAllowedRequestCount =
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pageStore.perLoadBlockedRequestCount = 0;
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}
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this.pageStores[tabId] = pageStore;
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return pageStore;
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};
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µBlock.unbindTabFromPageStats = function(tabId) {
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var pageStore = this.pageStores[tabId];
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if ( pageStore ) {
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//pageStore.disposeTime = Date.now();
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//this.pageStoreDump[pageStore.pageURL + ' ' + tabId] = pageStore;
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}
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delete this.pageStores[tabId];
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};
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/******************************************************************************/
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µBlock.pageUrlFromTabId = function(tabId) {
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var pageStore = this.pageStores[tabId];
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return pageStore ? pageStore.pageURL : '';
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};
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µBlock.pageUrlFromPageStats = function(pageStats) {
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if ( pageStats ) {
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return pageStats.pageURL;
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}
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return '';
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};
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µBlock.pageStoreFromTabId = function(tabId) {
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return this.pageStores[tabId];
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};
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/******************************************************************************/
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µBlock.forceReload = function(pageURL) {
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var tabId = this.tabIdFromPageUrl(pageURL);
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if ( tabId ) {
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chrome.tabs.reload(tabId, { bypassCache: true });
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}
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};
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