mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-24 19:33:01 +01:00
1225 lines
40 KiB
JavaScript
1225 lines
40 KiB
JavaScript
/*******************************************************************************
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µBlock - a browser extension to block requests.
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Copyright (C) 2014 The µBlock authors
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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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// For background page
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/******************************************************************************/
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(function() {
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'use strict';
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/******************************************************************************/
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var vAPI = self.vAPI = self.vAPI || {};
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var chrome = self.chrome;
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var manifest = chrome.runtime.getManifest();
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vAPI.chrome = true;
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var noopFunc = function(){};
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/******************************************************************************/
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vAPI.app = {
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name: manifest.name,
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version: manifest.version
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};
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/******************************************************************************/
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vAPI.app.restart = function() {
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chrome.runtime.reload();
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};
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/******************************************************************************/
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/******************************************************************************/
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// chrome.storage.local.get(null, function(bin){ console.debug('%o', bin); });
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vAPI.storage = chrome.storage.local;
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/******************************************************************************/
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/******************************************************************************/
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// https://github.com/gorhill/uMatrix/issues/234
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// https://developer.chrome.com/extensions/privacy#property-network
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// 2015-08-12: Wrapped Chrome API in try-catch statements. I had a fluke
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// event in which it appeared Chrome 46 decided to restart uBlock (for
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// unknown reasons) and again for unknown reasons the browser acted as if
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// uBlock did not declare the `privacy` permission in its manifest, putting
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// uBlock in a bad, non-functional state -- because call to `chrome.privacy`
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// API threw an exception.
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vAPI.browserSettings = {
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webRTCSupported: undefined,
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// https://github.com/gorhill/uBlock/issues/533
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// We must first check wether this Chromium-based browser was compiled
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// with WebRTC support. To do this, we use an iframe, this way the
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// empty RTCPeerConnection object we create to test for support will
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// be properly garbage collected. This prevents issues such as
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// a computer unable to enter into sleep mode, as reported in the
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// Chrome store:
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// https://github.com/gorhill/uBlock/issues/533#issuecomment-167931681
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setWebrtcIPAddress: function(setting) {
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// We don't know yet whether this browser supports WebRTC: find out.
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if ( this.webRTCSupported === undefined ) {
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this.webRTCSupported = { setting: setting };
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var iframe = document.createElement('iframe');
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var me = this;
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var messageHandler = function(ev) {
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if ( ev.origin !== self.location.origin ) {
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return;
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}
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window.removeEventListener('message', messageHandler);
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var setting = me.webRTCSupported.setting;
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me.webRTCSupported = ev.data === 'webRTCSupported';
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me.setWebrtcIPAddress(setting);
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iframe.parentNode.removeChild(iframe);
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iframe = null;
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};
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window.addEventListener('message', messageHandler);
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iframe.src = 'is-webrtc-supported.html';
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document.body.appendChild(iframe);
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return;
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}
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// We are waiting for a response from our iframe. This makes the code
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// safe to re-entrancy.
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if ( typeof this.webRTCSupported === 'object' ) {
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this.webRTCSupported.setting = setting;
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return;
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}
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// https://github.com/gorhill/uBlock/issues/533
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// WebRTC not supported: `webRTCMultipleRoutesEnabled` can NOT be
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// safely accessed. Accessing the property will cause full browser
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// crash.
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if ( this.webRTCSupported !== true ) {
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return;
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}
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// Older version of Chromium do not support this setting.
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if ( typeof chrome.privacy.network.webRTCMultipleRoutesEnabled !== 'object' ) {
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return;
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}
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try {
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chrome.privacy.network.webRTCMultipleRoutesEnabled.set({
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value: !!setting,
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scope: 'regular'
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}, function() {
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void chrome.runtime.lastError;
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});
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} catch(ex) {
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console.error(ex);
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}
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},
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set: function(details) {
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// https://github.com/gorhill/uBlock/issues/875
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// Must not leave `lastError` unchecked.
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var callback = function() {
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void chrome.runtime.lastError;
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};
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for ( var setting in details ) {
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if ( details.hasOwnProperty(setting) === false ) {
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continue;
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}
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switch ( setting ) {
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case 'prefetching':
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try {
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chrome.privacy.network.networkPredictionEnabled.set({
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value: !!details[setting],
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scope: 'regular'
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}, callback);
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} catch(ex) {
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console.error(ex);
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}
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break;
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case 'hyperlinkAuditing':
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try {
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chrome.privacy.websites.hyperlinkAuditingEnabled.set({
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value: !!details[setting],
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scope: 'regular'
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}, callback);
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} catch(ex) {
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console.error(ex);
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}
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break;
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case 'webrtcIPAddress':
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this.setWebrtcIPAddress(details[setting]);
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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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}
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};
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/******************************************************************************/
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/******************************************************************************/
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vAPI.tabs = {};
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/******************************************************************************/
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vAPI.isBehindTheSceneTabId = function(tabId) {
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return tabId.toString() === '-1';
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};
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vAPI.noTabId = '-1';
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/******************************************************************************/
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var toChromiumTabId = function(tabId) {
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if ( typeof tabId === 'string' ) {
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tabId = parseInt(tabId, 10);
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}
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if ( typeof tabId !== 'number' || isNaN(tabId) || tabId === -1 ) {
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return 0;
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}
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return tabId;
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};
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/******************************************************************************/
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vAPI.tabs.registerListeners = function() {
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var onNavigationClient = this.onNavigation || noopFunc;
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var onUpdatedClient = this.onUpdated || noopFunc;
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// https://developer.chrome.com/extensions/webNavigation
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// [onCreatedNavigationTarget ->]
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// onBeforeNavigate ->
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// onCommitted ->
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// onDOMContentLoaded ->
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// onCompleted
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// The chrome.webRequest.onBeforeRequest() won't be called for everything
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// else than `http`/`https`. Thus, in such case, we will bind the tab as
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// early as possible in order to increase the likelihood of a context
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// properly setup if network requests are fired from within the tab.
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// Example: Chromium + case #6 at
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// http://raymondhill.net/ublock/popup.html
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var reGoodForWebRequestAPI = /^https?:\/\//;
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var onCreatedNavigationTarget = function(details) {
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//console.debug('onCreatedNavigationTarget: popup candidate tab id %d = "%s"', details.tabId, details.url);
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if ( reGoodForWebRequestAPI.test(details.url) === false ) {
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details.frameId = 0;
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onNavigationClient(details);
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}
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if ( typeof vAPI.tabs.onPopupCreated === 'function' ) {
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vAPI.tabs.onPopupCreated(details.tabId.toString(), details.sourceTabId.toString());
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}
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};
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var onBeforeNavigate = function(details) {
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if ( details.frameId !== 0 ) {
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return;
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}
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};
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var onUpdated = function(tabId, changeInfo, tab) {
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onUpdatedClient(tabId, changeInfo, tab);
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};
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var onCommitted = function(details) {
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if ( details.frameId !== 0 ) {
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return;
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}
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onNavigationClient(details);
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};
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chrome.webNavigation.onCreatedNavigationTarget.addListener(onCreatedNavigationTarget);
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chrome.webNavigation.onBeforeNavigate.addListener(onBeforeNavigate);
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chrome.webNavigation.onCommitted.addListener(onCommitted);
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chrome.tabs.onUpdated.addListener(onUpdated);
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if ( typeof this.onClosed === 'function' ) {
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chrome.tabs.onRemoved.addListener(this.onClosed);
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}
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};
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/******************************************************************************/
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vAPI.tabs.get = function(tabId, callback) {
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var onTabReady = function(tab) {
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
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// Caller must be prepared to deal with nil tab value
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callback(tab);
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};
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if ( tabId !== null ) {
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tabId = toChromiumTabId(tabId);
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if ( tabId === 0 ) {
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onTabReady(null);
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} else {
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chrome.tabs.get(tabId, onTabReady);
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}
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return;
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}
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var onTabReceived = function(tabs) {
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
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callback(tabs[0]);
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};
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chrome.tabs.query({ active: true, currentWindow: true }, onTabReceived);
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};
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/******************************************************************************/
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// properties of the details object:
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// url: 'URL', // the address that will be opened
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// tabId: 1, // the tab is used if set, instead of creating a new one
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// index: -1, // undefined: end of the list, -1: following tab, or after index
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// active: false, // opens the tab in background - true and undefined: foreground
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// select: true, // if a tab is already opened with that url, then select it instead of opening a new one
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// popup: true // open in a new window
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vAPI.tabs.open = function(details) {
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var targetURL = details.url;
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if ( typeof targetURL !== 'string' || targetURL === '' ) {
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return null;
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}
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// extension pages
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if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
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targetURL = vAPI.getURL(targetURL);
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}
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// dealing with Chrome's asynchronous API
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var wrapper = function() {
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if ( details.active === undefined ) {
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details.active = true;
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}
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var subWrapper = function() {
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var _details = {
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url: targetURL,
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active: !!details.active
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};
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// Opening a tab from incognito window won't focus the window
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// in which the tab was opened
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var focusWindow = function(tab) {
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if ( tab.active ) {
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chrome.windows.update(tab.windowId, { focused: true });
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}
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};
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if ( !details.tabId ) {
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if ( details.index !== undefined ) {
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_details.index = details.index;
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}
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chrome.tabs.create(_details, focusWindow);
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return;
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}
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// update doesn't accept index, must use move
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chrome.tabs.update(toChromiumTabId(details.tabId), _details, function(tab) {
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// if the tab doesn't exist
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if ( vAPI.lastError() ) {
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chrome.tabs.create(_details, focusWindow);
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} else if ( details.index !== undefined ) {
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chrome.tabs.move(tab.id, {index: details.index});
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}
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});
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};
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// Open in a standalone window
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if ( details.popup === true ) {
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chrome.windows.create({
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url: details.url,
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focused: details.active,
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type: 'popup'
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});
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return;
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}
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if ( details.index !== -1 ) {
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subWrapper();
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return;
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}
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vAPI.tabs.get(null, function(tab) {
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if ( tab ) {
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details.index = tab.index + 1;
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} else {
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delete details.index;
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}
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subWrapper();
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});
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};
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if ( !details.select ) {
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wrapper();
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return;
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}
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// https://developer.chrome.com/extensions/tabs#method-query
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// "Note that fragment identifiers are not matched."
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// It's a lie, fragment identifiers ARE matched. So we need to remove the
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// fragment.
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var pos = targetURL.indexOf('#');
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var targetURLWithoutHash = pos === -1 ? targetURL : targetURL.slice(0, pos);
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chrome.tabs.query({ url: targetURLWithoutHash }, function(tabs) {
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var tab = tabs[0];
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if ( !tab ) {
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wrapper();
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return;
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}
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var _details = {
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active: true,
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url: undefined
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};
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if ( targetURL !== tab.url ) {
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_details.url = targetURL;
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}
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chrome.tabs.update(tab.id, _details, function(tab) {
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chrome.windows.update(tab.windowId, { focused: true });
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});
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});
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};
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/******************************************************************************/
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// Replace the URL of a tab. Noop if the tab does not exist.
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vAPI.tabs.replace = function(tabId, url) {
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tabId = toChromiumTabId(tabId);
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if ( tabId === 0 ) {
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return;
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}
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var targetURL = url;
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// extension pages
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if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
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targetURL = vAPI.getURL(targetURL);
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}
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chrome.tabs.update(tabId, { url: targetURL }, function() {
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
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});
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};
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/******************************************************************************/
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vAPI.tabs.remove = function(tabId) {
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tabId = toChromiumTabId(tabId);
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if ( tabId === 0 ) {
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return;
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}
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var onTabRemoved = function() {
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
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};
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chrome.tabs.remove(tabId, onTabRemoved);
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};
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/******************************************************************************/
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vAPI.tabs.reload = function(tabId /*, flags*/) {
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tabId = toChromiumTabId(tabId);
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if ( tabId === 0 ) {
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return;
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}
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var onReloaded = function() {
|
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
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};
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chrome.tabs.reload(tabId, onReloaded);
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};
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/******************************************************************************/
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// Select a specific tab.
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vAPI.tabs.select = function(tabId) {
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tabId = toChromiumTabId(tabId);
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if ( tabId === 0 ) {
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return;
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}
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chrome.tabs.update(tabId, { active: true }, function(tab) {
|
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
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if ( !tab ) {
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return;
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}
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chrome.windows.update(tab.windowId, { focused: true });
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});
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};
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/******************************************************************************/
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vAPI.tabs.injectScript = function(tabId, details, callback) {
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var onScriptExecuted = function() {
|
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// https://code.google.com/p/chromium/issues/detail?id=410868#c8
|
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if ( chrome.runtime.lastError ) {
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/* noop */
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}
|
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if ( typeof callback === 'function' ) {
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callback();
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}
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};
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if ( tabId ) {
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chrome.tabs.executeScript(toChromiumTabId(tabId), details, onScriptExecuted);
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} else {
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chrome.tabs.executeScript(details, onScriptExecuted);
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}
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};
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/******************************************************************************/
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/******************************************************************************/
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// Must read: https://code.google.com/p/chromium/issues/detail?id=410868#c8
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// https://github.com/chrisaljoudi/uBlock/issues/19
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// https://github.com/chrisaljoudi/uBlock/issues/207
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// Since we may be called asynchronously, the tab id may not exist
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// anymore, so this ensures it does still exist.
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|
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vAPI.setIcon = function(tabId, iconStatus, badge) {
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tabId = toChromiumTabId(tabId);
|
|
if ( tabId === 0 ) {
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return;
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}
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|
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var onIconReady = function() {
|
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if ( vAPI.lastError() ) {
|
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return;
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}
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chrome.browserAction.setBadgeText({ tabId: tabId, text: badge });
|
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if ( badge !== '' ) {
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chrome.browserAction.setBadgeBackgroundColor({
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tabId: tabId,
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color: '#666'
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});
|
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}
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};
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|
|
var iconPaths = iconStatus === 'on' ?
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|
{ '19': 'img/browsericons/icon19.png', '38': 'img/browsericons/icon38.png' } :
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{ '19': 'img/browsericons/icon19-off.png', '38': 'img/browsericons/icon38-off.png' };
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|
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chrome.browserAction.setIcon({ tabId: tabId, path: iconPaths }, onIconReady);
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};
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|
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/******************************************************************************/
|
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/******************************************************************************/
|
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|
|
vAPI.messaging = {
|
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ports: {},
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listeners: {},
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defaultHandler: null,
|
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NOOPFUNC: noopFunc,
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UNHANDLED: 'vAPI.messaging.notHandled'
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};
|
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|
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/******************************************************************************/
|
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|
|
vAPI.messaging.listen = function(listenerName, callback) {
|
|
this.listeners[listenerName] = callback;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.onPortMessage = (function() {
|
|
var messaging = vAPI.messaging;
|
|
var toAuxPending = {};
|
|
|
|
// Use a wrapper to avoid closure and to allow reuse.
|
|
var CallbackWrapper = function(port, request, timeout) {
|
|
this.callback = this.proxy.bind(this); // bind once
|
|
this.init(port, request, timeout);
|
|
};
|
|
|
|
CallbackWrapper.prototype.init = function(port, request, timeout) {
|
|
this.port = port;
|
|
this.request = request;
|
|
this.timerId = timeout !== undefined ?
|
|
vAPI.setTimeout(this.callback, timeout) :
|
|
null;
|
|
return this;
|
|
};
|
|
|
|
CallbackWrapper.prototype.proxy = function(response) {
|
|
if ( this.timerId !== null ) {
|
|
clearTimeout(this.timerId);
|
|
delete toAuxPending[this.timerId];
|
|
this.timerId = null;
|
|
}
|
|
// https://github.com/chrisaljoudi/uBlock/issues/383
|
|
if ( messaging.ports.hasOwnProperty(this.port.name) ) {
|
|
this.port.postMessage({
|
|
auxProcessId: this.request.auxProcessId,
|
|
channelName: this.request.channelName,
|
|
msg: response !== undefined ? response : null
|
|
});
|
|
}
|
|
// Mark for reuse
|
|
this.port = this.request = null;
|
|
callbackWrapperJunkyard.push(this);
|
|
};
|
|
|
|
var callbackWrapperJunkyard = [];
|
|
|
|
var callbackWrapperFactory = function(port, request, timeout) {
|
|
var wrapper = callbackWrapperJunkyard.pop();
|
|
if ( wrapper ) {
|
|
return wrapper.init(port, request, timeout);
|
|
}
|
|
return new CallbackWrapper(port, request, timeout);
|
|
};
|
|
|
|
var toAux = function(details, portFrom) {
|
|
var port, portTo;
|
|
var chromiumTabId = toChromiumTabId(details.toTabId);
|
|
|
|
// TODO: This could be an issue with a lot of tabs: easy to address
|
|
// with a port name to tab id map.
|
|
for ( var portName in messaging.ports ) {
|
|
if ( messaging.ports.hasOwnProperty(portName) === false ) {
|
|
continue;
|
|
}
|
|
// When sending to an auxiliary process, the target is always the
|
|
// port associated with the root frame.
|
|
port = messaging.ports[portName];
|
|
if ( port.sender.frameId === 0 && port.sender.tab.id === chromiumTabId ) {
|
|
portTo = port;
|
|
break;
|
|
}
|
|
}
|
|
|
|
var wrapper;
|
|
if ( details.auxProcessId !== undefined ) {
|
|
wrapper = callbackWrapperFactory(portFrom, details, 1023);
|
|
}
|
|
|
|
// Destination not found:
|
|
if ( portTo === undefined ) {
|
|
if ( wrapper !== undefined ) {
|
|
wrapper.callback();
|
|
}
|
|
return;
|
|
}
|
|
|
|
// As per HTML5, timer id is always an integer, thus suitable to be
|
|
// used as a key, and which value is safe to use across process
|
|
// boundaries.
|
|
if ( wrapper !== undefined ) {
|
|
toAuxPending[wrapper.timerId] = wrapper;
|
|
}
|
|
|
|
portTo.postMessage({
|
|
mainProcessId: wrapper && wrapper.timerId,
|
|
channelName: details.toChannel,
|
|
msg: details.msg
|
|
});
|
|
};
|
|
|
|
var toAuxResponse = function(details) {
|
|
var mainProcessId = details.mainProcessId;
|
|
if ( mainProcessId === undefined ) {
|
|
return;
|
|
}
|
|
if ( toAuxPending.hasOwnProperty(mainProcessId) === false ) {
|
|
return;
|
|
}
|
|
var wrapper = toAuxPending[mainProcessId];
|
|
delete toAuxPending[mainProcessId];
|
|
wrapper.callback(details.msg);
|
|
};
|
|
|
|
return function(request, port) {
|
|
// Auxiliary process to auxiliary process
|
|
if ( request.toTabId !== undefined ) {
|
|
toAux(request, port);
|
|
return;
|
|
}
|
|
|
|
// Auxiliary process to auxiliary process: response
|
|
if ( request.mainProcessId !== undefined ) {
|
|
toAuxResponse(request);
|
|
return;
|
|
}
|
|
|
|
// Auxiliary process to main process: prepare response
|
|
var callback = messaging.NOOPFUNC;
|
|
if ( request.auxProcessId !== undefined ) {
|
|
callback = callbackWrapperFactory(port, request).callback;
|
|
}
|
|
|
|
// Auxiliary process to main process: specific handler
|
|
var r = messaging.UNHANDLED;
|
|
var listener = messaging.listeners[request.channelName];
|
|
if ( typeof listener === 'function' ) {
|
|
r = listener(request.msg, port.sender, callback);
|
|
}
|
|
if ( r !== messaging.UNHANDLED ) {
|
|
return;
|
|
}
|
|
|
|
// Auxiliary process to main process: default handler
|
|
r = messaging.defaultHandler(request.msg, port.sender, callback);
|
|
if ( r !== messaging.UNHANDLED ) {
|
|
return;
|
|
}
|
|
|
|
// Auxiliary process to main process: no handler
|
|
console.error('uBlock> messaging > unknown request: %o', request);
|
|
|
|
// Need to callback anyways in case caller expected an answer, or
|
|
// else there is a memory leak on caller's side
|
|
callback();
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.onPortDisconnect = function(port) {
|
|
port.onDisconnect.removeListener(vAPI.messaging.onPortDisconnect);
|
|
port.onMessage.removeListener(vAPI.messaging.onPortMessage);
|
|
delete vAPI.messaging.ports[port.name];
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.onPortConnect = function(port) {
|
|
port.onDisconnect.addListener(vAPI.messaging.onPortDisconnect);
|
|
port.onMessage.addListener(vAPI.messaging.onPortMessage);
|
|
vAPI.messaging.ports[port.name] = port;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.setup = function(defaultHandler) {
|
|
// Already setup?
|
|
if ( this.defaultHandler !== null ) {
|
|
return;
|
|
}
|
|
|
|
if ( typeof defaultHandler !== 'function' ) {
|
|
defaultHandler = function(){ return vAPI.messaging.UNHANDLED; };
|
|
}
|
|
this.defaultHandler = defaultHandler;
|
|
|
|
chrome.runtime.onConnect.addListener(this.onPortConnect);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.messaging.broadcast = function(message) {
|
|
var messageWrapper = {
|
|
broadcast: true,
|
|
msg: message
|
|
};
|
|
|
|
for ( var portName in this.ports ) {
|
|
if ( this.ports.hasOwnProperty(portName) === false ) {
|
|
continue;
|
|
}
|
|
this.ports[portName].postMessage(messageWrapper);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.net = {};
|
|
|
|
/******************************************************************************/
|
|
|
|
vAPI.net.registerListeners = function() {
|
|
var µb = µBlock;
|
|
var µburi = µb.URI;
|
|
|
|
var normalizeRequestDetails = function(details) {
|
|
µburi.set(details.url);
|
|
|
|
details.tabId = details.tabId.toString();
|
|
details.hostname = µburi.hostnameFromURI(details.url);
|
|
|
|
// The rest of the function code is to normalize type
|
|
if ( details.type !== 'other' ) {
|
|
return;
|
|
}
|
|
|
|
var tail = µburi.path.slice(-6);
|
|
var pos = tail.lastIndexOf('.');
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/862
|
|
// If no transposition possible, transpose to `object` as per
|
|
// Chromium bug 410382 (see below)
|
|
if ( pos === -1 ) {
|
|
details.type = 'object';
|
|
return;
|
|
}
|
|
|
|
var ext = tail.slice(pos) + '.';
|
|
if ( '.eot.ttf.otf.svg.woff.woff2.'.indexOf(ext) !== -1 ) {
|
|
details.type = 'font';
|
|
return;
|
|
}
|
|
// Still need this because often behind-the-scene requests are wrongly
|
|
// categorized as 'other'
|
|
if ( '.ico.png.gif.jpg.jpeg.webp.'.indexOf(ext) !== -1 ) {
|
|
details.type = 'image';
|
|
return;
|
|
}
|
|
// https://code.google.com/p/chromium/issues/detail?id=410382
|
|
details.type = 'object';
|
|
};
|
|
|
|
var headerValue = function(headers, name) {
|
|
var i = headers.length;
|
|
while ( i-- ) {
|
|
if ( headers[i].name.toLowerCase() === name ) {
|
|
return headers[i].value.trim();
|
|
}
|
|
}
|
|
return '';
|
|
};
|
|
|
|
var onBeforeRequestClient = this.onBeforeRequest.callback;
|
|
var onBeforeRequest = function(details) {
|
|
normalizeRequestDetails(details);
|
|
return onBeforeRequestClient(details);
|
|
};
|
|
|
|
var onHeadersReceivedClient = this.onHeadersReceived.callback;
|
|
var onHeadersReceivedClientTypes = this.onHeadersReceived.types.slice(0);
|
|
var onHeadersReceivedTypes = onHeadersReceivedClientTypes.slice(0);
|
|
if (
|
|
onHeadersReceivedTypes.length !== 0 &&
|
|
onHeadersReceivedTypes.indexOf('other') === -1
|
|
) {
|
|
onHeadersReceivedTypes.push('other');
|
|
}
|
|
var onHeadersReceived = function(details) {
|
|
normalizeRequestDetails(details);
|
|
// Hack to work around Chromium API limitations, where requests of
|
|
// type `font` are returned as `other`. For example, our normalization
|
|
// fail at transposing `other` into `font` for URLs which are outside
|
|
// what is expected. At least when headers are received we can check
|
|
// for content type `font/*`. Blocking at onHeadersReceived time is
|
|
// less worse than not blocking at all. Also, due to Chromium bug,
|
|
// `other` always becomes `object` when it can't be normalized into
|
|
// something else. Test case for "unfriendly" font URLs:
|
|
// https://www.google.com/fonts
|
|
if ( details.type === 'object' ) {
|
|
if ( headerValue(details.responseHeaders, 'content-type').startsWith('font/') ) {
|
|
details.type = 'font';
|
|
var r = onBeforeRequestClient(details);
|
|
if ( typeof r === 'object' && r.cancel === true ) {
|
|
return { cancel: true };
|
|
}
|
|
}
|
|
if (
|
|
onHeadersReceivedClientTypes.length !== 0 &&
|
|
onHeadersReceivedClientTypes.indexOf(details.type) === -1
|
|
) {
|
|
return;
|
|
}
|
|
}
|
|
return onHeadersReceivedClient(details);
|
|
};
|
|
|
|
var installListeners = (function() {
|
|
var listener;
|
|
var crapi = chrome.webRequest;
|
|
|
|
listener = onBeforeRequest;
|
|
//listener = function(details) {
|
|
// quickProfiler.start('onBeforeRequest');
|
|
// var r = onBeforeRequest(details);
|
|
// quickProfiler.stop();
|
|
// return r;
|
|
//};
|
|
if ( crapi.onBeforeRequest.hasListener(listener) === false ) {
|
|
crapi.onBeforeRequest.addListener(
|
|
listener,
|
|
{
|
|
'urls': this.onBeforeRequest.urls || ['<all_urls>'],
|
|
'types': this.onBeforeRequest.types || undefined
|
|
},
|
|
this.onBeforeRequest.extra
|
|
);
|
|
}
|
|
|
|
listener = onHeadersReceived;
|
|
if ( crapi.onHeadersReceived.hasListener(listener) === false ) {
|
|
crapi.onHeadersReceived.addListener(
|
|
listener,
|
|
{
|
|
'urls': this.onHeadersReceived.urls || ['<all_urls>'],
|
|
'types': onHeadersReceivedTypes
|
|
},
|
|
this.onHeadersReceived.extra
|
|
);
|
|
}
|
|
|
|
// https://github.com/gorhill/uBlock/issues/675
|
|
// Experimental: keep polling to be sure our listeners are still installed.
|
|
//setTimeout(installListeners, 20000);
|
|
}).bind(this);
|
|
|
|
installListeners();
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.contextMenu = {
|
|
create: function(details, callback) {
|
|
this.menuId = details.id;
|
|
this.callback = callback;
|
|
chrome.contextMenus.create(details);
|
|
chrome.contextMenus.onClicked.addListener(this.callback);
|
|
},
|
|
remove: function() {
|
|
chrome.contextMenus.onClicked.removeListener(this.callback);
|
|
chrome.contextMenus.remove(this.menuId);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.lastError = function() {
|
|
return chrome.runtime.lastError;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// This is called only once, when everything has been loaded in memory after
|
|
// the extension was launched. It can be used to inject content scripts
|
|
// in already opened web pages, to remove whatever nuisance could make it to
|
|
// the web pages before uBlock was ready.
|
|
|
|
vAPI.onLoadAllCompleted = function() {
|
|
// http://code.google.com/p/chromium/issues/detail?id=410868#c11
|
|
// Need to be sure to access `vAPI.lastError()` to prevent
|
|
// spurious warnings in the console.
|
|
var scriptDone = function() {
|
|
vAPI.lastError();
|
|
};
|
|
var scriptEnd = function(tabId) {
|
|
if ( vAPI.lastError() ) {
|
|
return;
|
|
}
|
|
vAPI.tabs.injectScript(tabId, {
|
|
file: 'js/contentscript-end.js',
|
|
allFrames: true,
|
|
runAt: 'document_idle'
|
|
}, scriptDone);
|
|
};
|
|
var scriptStart = function(tabId) {
|
|
vAPI.tabs.injectScript(tabId, {
|
|
file: 'js/vapi-client.js',
|
|
allFrames: true,
|
|
runAt: 'document_idle'
|
|
}, function(){ });
|
|
vAPI.tabs.injectScript(tabId, {
|
|
file: 'js/contentscript-start.js',
|
|
allFrames: true,
|
|
runAt: 'document_idle'
|
|
}, function(){ scriptEnd(tabId); });
|
|
};
|
|
var bindToTabs = function(tabs) {
|
|
var µb = µBlock;
|
|
var i = tabs.length, tab;
|
|
while ( i-- ) {
|
|
tab = tabs[i];
|
|
µb.tabContextManager.commit(tab.id, tab.url);
|
|
µb.bindTabToPageStats(tab.id);
|
|
// https://github.com/chrisaljoudi/uBlock/issues/129
|
|
scriptStart(tab.id);
|
|
}
|
|
};
|
|
|
|
chrome.tabs.query({ url: '<all_urls>' }, bindToTabs);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.punycodeHostname = function(hostname) {
|
|
return hostname;
|
|
};
|
|
|
|
vAPI.punycodeURL = function(url) {
|
|
return url;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/gorhill/uBlock/issues/531
|
|
// Storage area dedicated to admin settings. Read-only.
|
|
|
|
// https://github.com/gorhill/uBlock/commit/43a5ed735b95a575a9339b6e71a1fcb27a99663b#commitcomment-13965030
|
|
// Not all Chromium-based browsers support managed storage. Merely testing or
|
|
// exception handling in this case does NOT work: I don't know why. The
|
|
// extension on Opera ends up in a non-sensical state, whereas vAPI become
|
|
// undefined out of nowhere. So only solution left is to test explicitly for
|
|
// Opera.
|
|
// https://github.com/gorhill/uBlock/issues/900
|
|
// Also, UC Browser: http://www.upsieutoc.com/image/WXuH
|
|
|
|
vAPI.adminStorage = {
|
|
getItem: function(key, callback) {
|
|
var onRead = function(store) {
|
|
var data;
|
|
if (
|
|
!chrome.runtime.lastError &&
|
|
typeof store === 'object' &&
|
|
store !== null
|
|
) {
|
|
data = store[key];
|
|
}
|
|
callback(data);
|
|
};
|
|
try {
|
|
chrome.storage.managed.get(key, onRead);
|
|
} catch (ex) {
|
|
callback();
|
|
}
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
vAPI.cloud = (function() {
|
|
var chunkCountPerFetch = 16; // Must be a power of 2
|
|
|
|
// Mind chrome.storage.sync.MAX_ITEMS (512 at time of writing)
|
|
var maxChunkCountPerItem = Math.floor(512 * 0.75) & ~(chunkCountPerFetch - 1);
|
|
|
|
// Mind chrome.storage.sync.QUOTA_BYTES_PER_ITEM (8192 at time of writing)
|
|
var maxChunkSize = Math.floor(chrome.storage.sync.QUOTA_BYTES_PER_ITEM * 0.75);
|
|
|
|
// Mind chrome.storage.sync.QUOTA_BYTES (128 kB at time of writing)
|
|
var maxStorageSize = chrome.storage.sync.QUOTA_BYTES;
|
|
|
|
var options = {
|
|
defaultDeviceName: window.navigator.platform,
|
|
deviceName: window.localStorage.getItem('deviceName') || ''
|
|
};
|
|
|
|
// This is used to find out a rough count of how many chunks exists:
|
|
// We "poll" at specific index in order to get a rough idea of how
|
|
// large is the stored string.
|
|
// This allows reading a single item with only 2 sync operations -- a
|
|
// good thing given chrome.storage.sync.MAX_WRITE_OPERATIONS_PER_MINUTE
|
|
// and chrome.storage.sync.MAX_WRITE_OPERATIONS_PER_HOUR.
|
|
|
|
var getCoarseChunkCount = function(dataKey, callback) {
|
|
var bin = {};
|
|
for ( var i = 0; i < maxChunkCountPerItem; i += 16 ) {
|
|
bin[dataKey + i.toString()] = '';
|
|
}
|
|
|
|
chrome.storage.sync.get(bin, function(bin) {
|
|
if ( chrome.runtime.lastError ) {
|
|
callback(0, chrome.runtime.lastError.message);
|
|
return;
|
|
}
|
|
|
|
var chunkCount = 0;
|
|
for ( var i = 0; i < maxChunkCountPerItem; i += 16 ) {
|
|
if ( bin[dataKey + i.toString()] === '' ) {
|
|
break;
|
|
}
|
|
chunkCount = i + 16;
|
|
}
|
|
|
|
callback(chunkCount);
|
|
});
|
|
};
|
|
|
|
var deleteChunks = function(dataKey, start) {
|
|
var keys = [];
|
|
|
|
// No point in deleting more than:
|
|
// - The max number of chunks per item
|
|
// - The max number of chunks per storage limit
|
|
var n = Math.min(
|
|
maxChunkCountPerItem,
|
|
Math.ceil(maxStorageSize / maxChunkSize)
|
|
);
|
|
for ( var i = start; i < n; i++ ) {
|
|
keys.push(dataKey + i.toString());
|
|
}
|
|
chrome.storage.sync.remove(keys);
|
|
};
|
|
|
|
var start = function(/* dataKeys */) {
|
|
};
|
|
|
|
var push = function(dataKey, data, callback) {
|
|
var bin = {
|
|
'source': options.deviceName || options.defaultDeviceName,
|
|
'tstamp': Date.now(),
|
|
'data': data,
|
|
'size': 0
|
|
};
|
|
bin.size = JSON.stringify(bin).length;
|
|
var item = JSON.stringify(bin);
|
|
|
|
// Chunkify taking into account QUOTA_BYTES_PER_ITEM:
|
|
// https://developer.chrome.com/extensions/storage#property-sync
|
|
// "The maximum size (in bytes) of each individual item in sync
|
|
// "storage, as measured by the JSON stringification of its value
|
|
// "plus its key length."
|
|
bin = {};
|
|
var chunkCount = Math.ceil(item.length / maxChunkSize);
|
|
for ( var i = 0; i < chunkCount; i++ ) {
|
|
bin[dataKey + i.toString()] = item.substr(i * maxChunkSize, maxChunkSize);
|
|
}
|
|
bin[dataKey + i.toString()] = ''; // Sentinel
|
|
|
|
chrome.storage.sync.set(bin, function() {
|
|
var errorStr;
|
|
if ( chrome.runtime.lastError ) {
|
|
errorStr = chrome.runtime.lastError.message;
|
|
}
|
|
callback(errorStr);
|
|
|
|
// Remove potentially unused trailing chunks
|
|
deleteChunks(dataKey, chunkCount);
|
|
});
|
|
};
|
|
|
|
var pull = function(dataKey, callback) {
|
|
var assembleChunks = function(bin) {
|
|
if ( chrome.runtime.lastError ) {
|
|
callback(null, chrome.runtime.lastError.message);
|
|
return;
|
|
}
|
|
|
|
// Assemble chunks into a single string.
|
|
var json = [], jsonSlice;
|
|
var i = 0;
|
|
for (;;) {
|
|
jsonSlice = bin[dataKey + i.toString()];
|
|
if ( jsonSlice === '' ) {
|
|
break;
|
|
}
|
|
json.push(jsonSlice);
|
|
i += 1;
|
|
}
|
|
|
|
var entry = null;
|
|
try {
|
|
entry = JSON.parse(json.join(''));
|
|
} catch(ex) {
|
|
}
|
|
callback(entry);
|
|
};
|
|
|
|
var fetchChunks = function(coarseCount, errorStr) {
|
|
if ( coarseCount === 0 || typeof errorStr === 'string' ) {
|
|
callback(null, errorStr);
|
|
return;
|
|
}
|
|
|
|
var bin = {};
|
|
for ( var i = 0; i < coarseCount; i++ ) {
|
|
bin[dataKey + i.toString()] = '';
|
|
}
|
|
|
|
chrome.storage.sync.get(bin, assembleChunks);
|
|
};
|
|
|
|
getCoarseChunkCount(dataKey, fetchChunks);
|
|
};
|
|
|
|
var getOptions = function(callback) {
|
|
if ( typeof callback !== 'function' ) {
|
|
return;
|
|
}
|
|
callback(options);
|
|
};
|
|
|
|
var setOptions = function(details, callback) {
|
|
if ( typeof details !== 'object' || details === null ) {
|
|
return;
|
|
}
|
|
|
|
if ( typeof details.deviceName === 'string' ) {
|
|
window.localStorage.setItem('deviceName', details.deviceName);
|
|
options.deviceName = details.deviceName;
|
|
}
|
|
|
|
getOptions(callback);
|
|
};
|
|
|
|
return {
|
|
start: start,
|
|
push: push,
|
|
pull: pull,
|
|
getOptions: getOptions,
|
|
setOptions: setOptions
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
})();
|
|
|
|
/******************************************************************************/
|