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uBlock/platform/firefox/vapi-background.js

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/*******************************************************************************
µBlock - a browser extension to block requests.
Copyright (C) 2014 The µBlock authors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
*/
/* jshint esnext: true, bitwise: false */
/* global self, Components, punycode, µBlock */
// For background page
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
const {Services} = Cu.import('resource://gre/modules/Services.jsm', null);
/******************************************************************************/
var vAPI = self.vAPI = self.vAPI || {};
vAPI.firefox = true;
vAPI.fennec = Services.appinfo.ID === '{aa3c5121-dab2-40e2-81ca-7ea25febc110}';
vAPI.thunderbird = Services.appinfo.ID === '{3550f703-e582-4d05-9a08-453d09bdfdc6}';
/******************************************************************************/
vAPI.app = {
name: 'uBlock Origin',
version: location.hash.slice(1)
};
/******************************************************************************/
vAPI.app.restart = function() {
// Listening in bootstrap.js
Cc['@mozilla.org/childprocessmessagemanager;1']
.getService(Ci.nsIMessageSender)
.sendAsyncMessage(location.host + '-restart');
};
/******************************************************************************/
// Set default preferences for user to find in about:config
vAPI.localStorage.setDefaultBool('forceLegacyToolbarButton', false);
/******************************************************************************/
// List of things that needs to be destroyed when disabling the extension
// Only functions should be added to it
var cleanupTasks = [];
// This must be updated manually, every time a new task is added/removed
var expectedNumberOfCleanups = 8;
window.addEventListener('unload', function() {
if ( typeof vAPI.app.onShutdown === 'function' ) {
vAPI.app.onShutdown();
}
for ( var cleanup of cleanupTasks ) {
cleanup();
}
if ( cleanupTasks.length < expectedNumberOfCleanups ) {
console.error(
'uBlock> Cleanup tasks performed: %s (out of %s)',
cleanupTasks.length,
expectedNumberOfCleanups
);
}
// frameModule needs to be cleared too
var frameModuleURL = vAPI.getURL('frameModule.js');
var frameModule = {};
Cu.import(frameModuleURL, frameModule);
frameModule.contentObserver.unregister();
Cu.unload(frameModuleURL);
});
/******************************************************************************/
// For now, only booleans.
vAPI.browserSettings = {
originalValues: {},
rememberOriginalValue: function(path, setting) {
var key = path + '.' + setting;
if ( this.originalValues.hasOwnProperty(key) ) {
return;
}
var hasUserValue;
var branch = Services.prefs.getBranch(path + '.');
try {
hasUserValue = branch.prefHasUserValue(setting);
} catch (ex) {
}
if ( hasUserValue !== undefined ) {
this.originalValues[key] = hasUserValue ? this.getValue(path, setting) : undefined;
}
},
clear: function(path, setting) {
var key = path + '.' + setting;
// Value was not overriden -- nothing to restore
if ( this.originalValues.hasOwnProperty(key) === false ) {
return;
}
var value = this.originalValues[key];
// https://github.com/gorhill/uBlock/issues/292#issuecomment-109621979
// Forget the value immediately, it may change outside of
// uBlock control.
delete this.originalValues[key];
// Original value was a default one
if ( value === undefined ) {
try {
Services.prefs.getBranch(path + '.').clearUserPref(setting);
} catch (ex) {
}
return;
}
// Reset to original value
this.setValue(path, setting, value);
},
getValue: function(path, setting) {
var branch = Services.prefs.getBranch(path + '.');
var getMethod;
// https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIPrefBranch#getPrefType%28%29
switch ( branch.getPrefType(setting) ) {
case 64: // PREF_INT
getMethod = 'getIntPref';
break;
case 128: // PREF_BOOL
getMethod = 'getBoolPref';
break;
default: // not supported
return;
}
try {
return branch[getMethod](setting);
} catch (ex) {
}
},
setValue: function(path, setting, value) {
var setMethod;
switch ( typeof value ) {
case 'number':
setMethod = 'setIntPref';
break;
case 'boolean':
setMethod = 'setBoolPref';
break;
default: // not supported
return;
}
try {
Services.prefs.getBranch(path + '.')[setMethod](setting, value);
} catch (ex) {
}
},
set: function(details) {
var value;
for ( var setting in details ) {
if ( details.hasOwnProperty(setting) === false ) {
continue;
}
switch ( setting ) {
case 'prefetching':
this.rememberOriginalValue('network', 'prefetch-next');
// http://betanews.com/2015/08/15/firefox-stealthily-loads-webpages-when-you-hover-over-links-heres-how-to-stop-it/
// https://bugzilla.mozilla.org/show_bug.cgi?id=814169
// Sigh.
this.rememberOriginalValue('network.http', 'speculative-parallel-limit');
value = !!details[setting];
// https://github.com/gorhill/uBlock/issues/292
// "true" means "do not disable", i.e. leave entry alone
if ( value === true ) {
this.clear('network', 'prefetch-next');
this.clear('network.http', 'speculative-parallel-limit');
} else {
this.setValue('network', 'prefetch-next', false);
this.setValue('network.http', 'speculative-parallel-limit', 0);
}
break;
case 'hyperlinkAuditing':
this.rememberOriginalValue('browser', 'send_pings');
this.rememberOriginalValue('beacon', 'enabled');
value = !!details[setting];
// https://github.com/gorhill/uBlock/issues/292
// "true" means "do not disable", i.e. leave entry alone
if ( value === true ) {
this.clear('browser', 'send_pings');
this.clear('beacon', 'enabled');
} else {
this.setValue('browser', 'send_pings', false);
this.setValue('beacon', 'enabled', false);
}
break;
case 'webrtcIPAddress':
this.rememberOriginalValue('media.peerconnection', 'enabled');
value = !!details[setting];
if ( value === true ) {
this.clear('media.peerconnection', 'enabled');
} else {
this.setValue('media.peerconnection', 'enabled', false);
}
break;
default:
break;
}
}
},
restoreAll: function() {
var pos;
for ( var key in this.originalValues ) {
if ( this.originalValues.hasOwnProperty(key) === false ) {
continue;
}
pos = key.lastIndexOf('.');
this.clear(key.slice(0, pos), key.slice(pos + 1));
}
}
};
cleanupTasks.push(vAPI.browserSettings.restoreAll.bind(vAPI.browserSettings));
/******************************************************************************/
// API matches that of chrome.storage.local:
// https://developer.chrome.com/extensions/storage
vAPI.storage = (function() {
var db = null;
var vacuumTimer = null;
var close = function() {
if ( vacuumTimer !== null ) {
clearTimeout(vacuumTimer);
vacuumTimer = null;
}
if ( db === null ) {
return;
}
db.asyncClose();
db = null;
};
var open = function() {
if ( db !== null ) {
return db;
}
// Create path
var path = Services.dirsvc.get('ProfD', Ci.nsIFile);
path.append('extension-data');
if ( !path.exists() ) {
path.create(Ci.nsIFile.DIRECTORY_TYPE, parseInt('0774', 8));
}
if ( !path.isDirectory() ) {
throw Error('Should be a directory...');
}
path.append(location.host + '.sqlite');
// Open database
try {
db = Services.storage.openDatabase(path);
if ( db.connectionReady === false ) {
db.asyncClose();
db = null;
}
} catch (ex) {
}
if ( db === null ) {
return null;
}
// Database was opened, register cleanup task
cleanupTasks.push(close);
// Setup database
db.createAsyncStatement('CREATE TABLE IF NOT EXISTS "settings" ("name" TEXT PRIMARY KEY NOT NULL, "value" TEXT);')
.executeAsync();
if ( vacuum !== null ) {
vacuumTimer = vAPI.setTimeout(vacuum, 60000);
}
return db;
};
// https://developer.mozilla.org/en-US/docs/Storage/Performance#Vacuuming_and_zero-fill
// Vacuum only once, and only while idle
var vacuum = function() {
vacuumTimer = null;
if ( db === null ) {
return;
}
var idleSvc = Cc['@mozilla.org/widget/idleservice;1']
.getService(Ci.nsIIdleService);
if ( idleSvc.idleTime < 60000 ) {
vacuumTimer = vAPI.setTimeout(vacuum, 60000);
return;
}
db.createAsyncStatement('VACUUM').executeAsync();
vacuum = null;
};
// Execute a query
var runStatement = function(stmt, callback) {
var result = {};
stmt.executeAsync({
handleResult: function(rows) {
if ( !rows || typeof callback !== 'function' ) {
return;
}
var row;
while ( (row = rows.getNextRow()) ) {
// we assume that there will be two columns, since we're
// using it only for preferences
result[row.getResultByIndex(0)] = row.getResultByIndex(1);
}
},
handleCompletion: function(reason) {
if ( typeof callback === 'function' && reason === 0 ) {
callback(result);
}
},
handleError: function(error) {
console.error('SQLite error ', error.result, error.message);
// Caller expects an answer regardless of failure.
if ( typeof callback === 'function' ) {
callback(null);
}
}
});
};
var bindNames = function(stmt, names) {
if ( Array.isArray(names) === false || names.length === 0 ) {
return;
}
var params = stmt.newBindingParamsArray();
var i = names.length, bp;
while ( i-- ) {
bp = params.newBindingParams();
bp.bindByName('name', names[i]);
params.addParams(bp);
}
stmt.bindParameters(params);
};
var clear = function(callback) {
if ( open() === null ) {
if ( typeof callback === 'function' ) {
callback();
}
return;
}
runStatement(db.createAsyncStatement('DELETE FROM "settings";'), callback);
};
var getBytesInUse = function(keys, callback) {
if ( typeof callback !== 'function' ) {
return;
}
if ( open() === null ) {
callback(0);
return;
}
var stmt;
if ( Array.isArray(keys) ) {
stmt = db.createAsyncStatement('SELECT "size" AS "size", SUM(LENGTH("value")) FROM "settings" WHERE "name" = :name');
bindNames(keys);
} else {
stmt = db.createAsyncStatement('SELECT "size" AS "size", SUM(LENGTH("value")) FROM "settings"');
}
runStatement(stmt, function(result) {
callback(result.size);
});
};
var read = function(details, callback) {
if ( typeof callback !== 'function' ) {
return;
}
var prepareResult = function(result) {
var key;
for ( key in result ) {
if ( result.hasOwnProperty(key) === false ) {
continue;
}
result[key] = JSON.parse(result[key]);
}
if ( typeof details === 'object' && details !== null ) {
for ( key in details ) {
if ( result.hasOwnProperty(key) === false ) {
result[key] = details[key];
}
}
}
callback(result);
};
if ( open() === null ) {
prepareResult({});
return;
}
var names = [];
if ( details !== null ) {
if ( Array.isArray(details) ) {
names = details;
} else if ( typeof details === 'object' ) {
names = Object.keys(details);
} else {
names = [details.toString()];
}
}
var stmt;
if ( names.length === 0 ) {
stmt = db.createAsyncStatement('SELECT * FROM "settings"');
} else {
stmt = db.createAsyncStatement('SELECT * FROM "settings" WHERE "name" = :name');
bindNames(stmt, names);
}
runStatement(stmt, prepareResult);
};
var remove = function(keys, callback) {
if ( open() === null ) {
if ( typeof callback === 'function' ) {
callback();
}
return;
}
var stmt = db.createAsyncStatement('DELETE FROM "settings" WHERE "name" = :name');
bindNames(stmt, typeof keys === 'string' ? [keys] : keys);
runStatement(stmt, callback);
};
var write = function(details, callback) {
if ( open() === null ) {
if ( typeof callback === 'function' ) {
callback();
}
return;
}
var stmt = db.createAsyncStatement('INSERT OR REPLACE INTO "settings" ("name", "value") VALUES(:name, :value)');
var params = stmt.newBindingParamsArray(), bp;
for ( var key in details ) {
if ( details.hasOwnProperty(key) === false ) {
continue;
}
bp = params.newBindingParams();
bp.bindByName('name', key);
bp.bindByName('value', JSON.stringify(details[key]));
params.addParams(bp);
}
if ( params.length === 0 ) {
return;
}
stmt.bindParameters(params);
runStatement(stmt, callback);
};
// Export API
var api = {
QUOTA_BYTES: 100 * 1024 * 1024,
clear: clear,
get: read,
getBytesInUse: getBytesInUse,
remove: remove,
set: write
};
return api;
})();
/******************************************************************************/
var getTabBrowser = (function() {
if ( vAPI.fennec ) {
return function(win) {
return win.BrowserApp || null;
};
}
if ( vAPI.thunderbird ) {
return function(win) {
return win.document.getElementById('tabmail') || null;
};
}
return function(win) {
return win.gBrowser || null;
};
})();
/******************************************************************************/
var getOwnerWindow = function(target) {
if ( target.ownerDocument ) {
return target.ownerDocument.defaultView;
}
// Fennec
for ( var win of vAPI.tabs.getWindows() ) {
for ( var tab of win.BrowserApp.tabs) {
if ( tab === target || tab.window === target ) {
return win;
}
}
}
return null;
};
/******************************************************************************/
vAPI.isBehindTheSceneTabId = function(tabId) {
return tabId.toString() === '-1';
};
vAPI.noTabId = '-1';
/******************************************************************************/
vAPI.tabs = {};
/******************************************************************************/
vAPI.tabs.mostRecentWindowId = (function() {
if ( vAPI.thunderbird ) {
return 'mail:3pane';
}
return 'navigator:browser';
})();
/******************************************************************************/
vAPI.tabs.registerListeners = function() {
tabWatcher.start();
};
/******************************************************************************/
// Firefox:
// https://developer.mozilla.org/en-US/Add-ons/Code_snippets/Tabbed_browser
//
// browser --> ownerDocument --> defaultView --> gBrowser --> browsers --+
// ^ |
// | |
// +-------------------------------------------------------------------
//
// browser (browser)
// contentTitle
// currentURI
// ownerDocument (XULDocument)
// defaultView (ChromeWindow)
// gBrowser (tabbrowser OR browser)
// browsers (browser)
// selectedBrowser
// selectedTab
// tabs (tab.tabbrowser-tab)
//
// Fennec: (what I figured so far)
//
// tab --> browser windows --> window --> BrowserApp --> tabs --+
// ^ window |
// | |
// +---------------------------------------------------------------+
//
// tab
// browser
// [manual search to go back to tab from list of windows]
vAPI.tabs.get = function(tabId, callback) {
var browser;
if ( tabId === null ) {
browser = tabWatcher.currentBrowser();
tabId = tabWatcher.tabIdFromTarget(browser);
} else {
browser = tabWatcher.browserFromTabId(tabId);
}
// For internal use
if ( typeof callback !== 'function' ) {
return browser;
}
if ( !browser ) {
callback();
return;
}
var win = getOwnerWindow(browser);
var tabBrowser = getTabBrowser(win);
var windows = this.getWindows();
callback({
id: tabId,
index: tabWatcher.indexFromTarget(browser),
windowId: windows.indexOf(win),
active: browser === tabBrowser.selectedBrowser,
url: browser.currentURI.asciiSpec,
title: browser.contentTitle
});
};
/******************************************************************************/
vAPI.tabs.getAll = function(window) {
var win, tab;
var tabs = [];
for ( win of this.getWindows() ) {
if ( window && window !== win ) {
continue;
}
var tabBrowser = getTabBrowser(win);
if ( tabBrowser === null ) {
continue;
}
for ( tab of tabBrowser.tabs ) {
tabs.push(tab);
}
}
return tabs;
};
/******************************************************************************/
vAPI.tabs.getWindows = function() {
var winumerator = Services.wm.getEnumerator(this.mostRecentWindowId);
var windows = [];
while ( winumerator.hasMoreElements() ) {
var win = winumerator.getNext();
if ( !win.closed ) {
windows.push(win);
}
}
return windows;
};
/******************************************************************************/
// properties of the details object:
// url: 'URL', // the address that will be opened
// tabId: 1, // the tab is used if set, instead of creating a new one
// index: -1, // undefined: end of the list, -1: following tab, or after index
// active: false, // opens the tab in background - true and undefined: foreground
// select: true // if a tab is already opened with that url, then select it instead of opening a new one
vAPI.tabs.open = function(details) {
if ( !details.url ) {
return null;
}
// extension pages
if ( /^[\w-]{2,}:/.test(details.url) === false ) {
details.url = vAPI.getURL(details.url);
}
var tab;
if ( details.select ) {
var URI = Services.io.newURI(details.url, null, null);
for ( tab of this.getAll() ) {
var browser = tabWatcher.browserFromTarget(tab);
// Or simply .equals if we care about the fragment
if ( URI.equalsExceptRef(browser.currentURI) === false ) {
continue;
}
// Or simply .equals if we care about the fragment
if ( URI.equalsExceptRef(browser.currentURI) === false ) {
continue;
}
this.select(tab);
// Update URL if fragment is different
if ( URI.equals(browser.currentURI) === false ) {
browser.loadURI(URI.asciiSpec);
}
return;
}
}
if ( details.active === undefined ) {
details.active = true;
}
if ( details.tabId ) {
tab = tabWatcher.browserFromTabId(details.tabId);
if ( tab ) {
tabWatcher.browserFromTarget(tab).loadURI(details.url);
return;
}
}
var win = Services.wm.getMostRecentWindow(this.mostRecentWindowId);
var tabBrowser = getTabBrowser(win);
if ( vAPI.fennec ) {
tabBrowser.addTab(details.url, {
selected: details.active !== false
});
// Note that it's impossible to move tabs on Fennec, so don't bother
return;
}
// Open in a standalone window
if ( details.popup === true ) {
Services.ww.openWindow(
self,
details.url,
null,
'location=1,menubar=1,personalbar=1,resizable=1,toolbar=1',
null
);
return;
}
if ( vAPI.thunderbird ) {
tabBrowser.openTab('contentTab', {
contentPage: details.url,
background: !details.active
});
// TODO: Should be possible to move tabs on Thunderbird
return;
}
if ( details.index === -1 ) {
details.index = tabBrowser.browsers.indexOf(tabBrowser.selectedBrowser) + 1;
}
tab = tabBrowser.loadOneTab(details.url, { inBackground: !details.active });
if ( details.index !== undefined ) {
tabBrowser.moveTabTo(tab, details.index);
}
};
/******************************************************************************/
// Replace the URL of a tab. Noop if the tab does not exist.
vAPI.tabs.replace = function(tabId, url) {
var targetURL = url;
// extension pages
if ( /^[\w-]{2,}:/.test(targetURL) !== true ) {
targetURL = vAPI.getURL(targetURL);
}
var browser = tabWatcher.browserFromTabId(tabId);
if ( browser ) {
browser.loadURI(targetURL);
}
};
/******************************************************************************/
vAPI.tabs._remove = (function() {
if ( vAPI.fennec || vAPI.thunderbird ) {
return function(tab, tabBrowser) {
tabBrowser.closeTab(tab);
};
}
return function(tab, tabBrowser) {
tabBrowser.removeTab(tab);
};
})();
/******************************************************************************/
vAPI.tabs.remove = function(tabId) {
var browser = tabWatcher.browserFromTabId(tabId);
if ( !browser ) {
return;
}
var tab = tabWatcher.tabFromBrowser(browser);
if ( !tab ) {
return;
}
this._remove(tab, getTabBrowser(getOwnerWindow(browser)));
};
/******************************************************************************/
vAPI.tabs.reload = function(tabId) {
var browser = tabWatcher.browserFromTabId(tabId);
if ( !browser ) {
return;
}
browser.webNavigation.reload(Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE);
};
/******************************************************************************/
vAPI.tabs.select = function(tab) {
if ( typeof tab !== 'object' ) {
tab = tabWatcher.tabFromBrowser(tabWatcher.browserFromTabId(tab));
}
if ( !tab ) {
return;
}
// https://github.com/gorhill/uBlock/issues/470
var win = getOwnerWindow(tab);
win.focus();
var tabBrowser = getTabBrowser(win);
if ( vAPI.fennec ) {
tabBrowser.selectTab(tab);
} else {
tabBrowser.selectedTab = tab;
}
};
/******************************************************************************/
vAPI.tabs.injectScript = function(tabId, details, callback) {
var browser = tabWatcher.browserFromTabId(tabId);
if ( !browser ) {
return;
}
if ( typeof details.file !== 'string' ) {
return;
}
details.file = vAPI.getURL(details.file);
browser.messageManager.sendAsyncMessage(
location.host + ':broadcast',
JSON.stringify({
broadcast: true,
channelName: 'vAPI',
msg: {
cmd: 'injectScript',
details: details
}
})
);
if ( typeof callback === 'function' ) {
vAPI.setTimeout(callback, 13);
}
};
/******************************************************************************/
var tabWatcher = (function() {
// TODO: find out whether we need a janitor to take care of stale entries.
var browserToTabIdMap = new Map();
var tabIdToBrowserMap = new Map();
var tabIdGenerator = 1;
var indexFromBrowser = function(browser) {
// TODO: Add support for this
if ( vAPI.thunderbird ) {
return -1;
}
var win = getOwnerWindow(browser);
if ( !win ) {
return -1;
}
var tabbrowser = getTabBrowser(win);
if ( !tabbrowser ) {
return -1;
}
// This can happen, for example, the `view-source:` window, there is
// no tabbrowser object, the browser object sits directly in the
// window.
if ( tabbrowser === browser ) {
return 0;
}
// Fennec
// https://developer.mozilla.org/en-US/Add-ons/Firefox_for_Android/API/BrowserApp
if ( vAPI.fennec ) {
return tabbrowser.tabs.indexOf(tabbrowser.getTabForBrowser(browser));
}
return tabbrowser.browsers.indexOf(browser);
};
var indexFromTarget = function(target) {
return indexFromBrowser(browserFromTarget(target));
};
var tabFromBrowser = function(browser) {
var i = indexFromBrowser(browser);
if ( i === -1 ) {
return null;
}
var win = getOwnerWindow(browser);
if ( !win ) {
return null;
}
var tabbrowser = getTabBrowser(win);
if ( !tabbrowser ) {
return null;
}
if ( !tabbrowser.tabs || i >= tabbrowser.tabs.length ) {
return null;
}
return tabbrowser.tabs[i];
};
var browserFromTarget = (function() {
if ( vAPI.fennec ) {
return function(target) {
if ( !target ) { return null; }
if ( target.browser ) { // target is a tab
target = target.browser;
}
return target.localName === 'browser' ? target : null;
};
}
if ( vAPI.thunderbird ) {
return function(target) {
if ( !target ) { return null; }
if ( target.mode ) { // target is object with tab info
var browserFunc = target.mode.getBrowser || target.mode.tabType.getBrowser;
if ( browserFunc ) {
return browserFunc.call(target.mode.tabType, target);
}
}
return target.localName === 'browser' ? target : null;
};
}
return function(target) {
if ( !target ) { return null; }
if ( target.linkedPanel ) { // target is a tab
target = target.linkedBrowser;
}
return target.localName === 'browser' ? target : null;
};
})();
var tabIdFromTarget = function(target) {
var browser = browserFromTarget(target);
if ( browser === null ) {
return vAPI.noTabId;
}
var tabId = browserToTabIdMap.get(browser);
if ( tabId === undefined ) {
tabId = '' + tabIdGenerator++;
browserToTabIdMap.set(browser, tabId);
tabIdToBrowserMap.set(tabId, browser);
}
return tabId;
};
var browserFromTabId = function(tabId) {
var browser = tabIdToBrowserMap.get(tabId);
if ( browser === undefined ) {
return null;
}
// Verify that the browser is still live
if ( indexFromBrowser(browser) !== -1 ) {
return browser;
}
removeBrowserEntry(tabId, browser);
return null;
};
var currentBrowser = function() {
var win = Services.wm.getMostRecentWindow(vAPI.tabs.mostRecentWindowId);
// https://github.com/gorhill/uBlock/issues/399
// getTabBrowser() can return null at browser launch time.
var tabBrowser = getTabBrowser(win);
if ( tabBrowser === null ) {
return null;
}
if ( vAPI.thunderbird ) {
// Directly at startup the first tab may not be initialized
if ( tabBrowser.tabInfo.length === 0 ) {
return null;
}
return tabBrowser.getBrowserForSelectedTab() || null;
}
return browserFromTarget(tabBrowser.selectedTab);
};
var removeBrowserEntry = function(tabId, browser) {
if ( tabId && tabId !== vAPI.noTabId ) {
vAPI.tabs.onClosed(tabId);
delete vAPI.toolbarButton.tabs[tabId];
tabIdToBrowserMap.delete(tabId);
}
if ( browser ) {
browserToTabIdMap.delete(browser);
}
};
var removeTarget = function(target) {
onClose({ target: target });
};
// https://developer.mozilla.org/en-US/docs/Web/Events/TabOpen
//var onOpen = function({target}) {
// var tabId = tabIdFromTarget(target);
// var browser = browserFromTabId(tabId);
// vAPI.tabs.onNavigation({
// frameId: 0,
// tabId: tabId,
// url: browser.currentURI.asciiSpec,
// });
//};
// https://developer.mozilla.org/en-US/docs/Web/Events/TabShow
var onShow = function({target}) {
tabIdFromTarget(target);
};
// https://developer.mozilla.org/en-US/docs/Web/Events/TabClose
var onClose = function({target}) {
// target is tab in Firefox, browser in Fennec
var browser = browserFromTarget(target);
var tabId = browserToTabIdMap.get(browser);
removeBrowserEntry(tabId, browser);
};
// https://developer.mozilla.org/en-US/docs/Web/Events/TabSelect
var onSelect = function({target}) {
vAPI.setIcon(tabIdFromTarget(target), getOwnerWindow(target));
};
var attachToTabBrowser = function(window) {
var tabBrowser = getTabBrowser(window);
if ( !tabBrowser ) {
return false;
}
if ( typeof vAPI.toolbarButton.attachToNewWindow === 'function' ) {
vAPI.toolbarButton.attachToNewWindow(window);
}
var tabContainer;
if ( tabBrowser.deck ) { // Fennec
tabContainer = tabBrowser.deck;
} else if ( tabBrowser.tabContainer ) { // Firefox
tabContainer = tabBrowser.tabContainer;
vAPI.contextMenu.register(window.document);
}
// https://github.com/gorhill/uBlock/issues/697
// Ignore `TabShow` events: unfortunately the `pending` attribute is
// not set when a tab is opened as a result of session restore -- it is
// set *after* the event is fired in such case.
if ( tabContainer ) {
//tabContainer.addEventListener('TabOpen', onOpen);
tabContainer.addEventListener('TabShow', onShow);
tabContainer.addEventListener('TabClose', onClose);
// when new window is opened TabSelect doesn't run on the selected tab?
tabContainer.addEventListener('TabSelect', onSelect);
}
return true;
};
var onWindowLoad = function(ev) {
if ( ev ) {
this.removeEventListener(ev.type, onWindowLoad);
}
var wintype = this.document.documentElement.getAttribute('windowtype');
if ( wintype !== 'navigator:browser' ) {
return;
}
// On some platforms, the tab browser isn't immediately available,
// try waiting a bit if this happens.
var win = this;
if ( attachToTabBrowser(win) === false ) {
vAPI.setTimeout(attachToTabBrowser.bind(null, win), 250);
}
};
var onWindowUnload = function() {
vAPI.contextMenu.unregister(this.document);
this.removeEventListener('DOMContentLoaded', onWindowLoad);
var tabBrowser = getTabBrowser(this);
if ( !tabBrowser ) {
return;
}
var tabContainer;
if ( tabBrowser.deck ) { // Fennec
tabContainer = tabBrowser.deck;
} else if ( tabBrowser.tabContainer ) { // Firefox
tabContainer = tabBrowser.tabContainer;
}
if ( tabContainer ) {
//tabContainer.removeEventListener('TabOpen', onOpen);
tabContainer.removeEventListener('TabShow', onShow);
tabContainer.removeEventListener('TabClose', onClose);
tabContainer.removeEventListener('TabSelect', onSelect);
}
// https://github.com/gorhill/uBlock/issues/574
// To keep in mind: not all windows are tab containers,
// sometimes the window IS the tab.
var tabs;
if ( vAPI.thunderbird ) {
tabs = tabBrowser.tabInfo;
} else if ( tabBrowser.tabs ) {
tabs = tabBrowser.tabs;
} else if ( tabBrowser.localName === 'browser' ) {
tabs = [tabBrowser];
} else {
tabs = [];
}
var browser, URI, tabId;
var tabindex = tabs.length, tab;
while ( tabindex-- ) {
tab = tabs[tabindex];
browser = browserFromTarget(tab);
if ( browser === null ) {
continue;
}
URI = browser.currentURI;
// Close extension tabs
if ( URI.schemeIs('chrome') && URI.host === location.host ) {
vAPI.tabs._remove(tab, getTabBrowser(this));
}
tabId = browserToTabIdMap.get(browser);
if ( tabId !== undefined ) {
removeBrowserEntry(tabId, browser);
tabIdToBrowserMap.delete(tabId);
}
browserToTabIdMap.delete(browser);
}
};
// https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIWindowWatcher
var windowWatcher = {
observe: function(win, topic) {
if ( topic === 'domwindowopened' ) {
win.addEventListener('DOMContentLoaded', onWindowLoad);
return;
}
if ( topic === 'domwindowclosed' ) {
onWindowUnload.call(win);
return;
}
}
};
// Initialize map with existing active tabs
var start = function() {
var tabBrowser, tabs, tab;
for ( var win of vAPI.tabs.getWindows() ) {
onWindowLoad.call(win);
tabBrowser = getTabBrowser(win);
if ( tabBrowser === null ) {
continue;
}
// `tabBrowser.tabs` may not exist (Thunderbird).
tabs = tabBrowser.tabs;
if ( !tabs ) {
continue;
}
for ( tab of tabs ) {
if ( vAPI.fennec || !tab.hasAttribute('pending') ) {
tabIdFromTarget(tab);
}
}
}
Services.ww.registerNotification(windowWatcher);
};
var stop = function() {
Services.ww.unregisterNotification(windowWatcher);
for ( var win of vAPI.tabs.getWindows() ) {
onWindowUnload.call(win);
}
browserToTabIdMap.clear();
tabIdToBrowserMap.clear();
};
cleanupTasks.push(stop);
return {
browsers: function() { return browserToTabIdMap.keys(); },
browserFromTabId: browserFromTabId,
browserFromTarget: browserFromTarget,
currentBrowser: currentBrowser,
indexFromTarget: indexFromTarget,
removeTarget: removeTarget,
start: start,
tabFromBrowser: tabFromBrowser,
tabIdFromTarget: tabIdFromTarget
};
})();
/******************************************************************************/
vAPI.setIcon = function(tabId, iconStatus, badge) {
// If badge is undefined, then setIcon was called from the TabSelect event
var win = badge === undefined
? iconStatus
: Services.wm.getMostRecentWindow(vAPI.tabs.mostRecentWindowId);
var curTabId = tabWatcher.tabIdFromTarget(getTabBrowser(win).selectedTab);
var tb = vAPI.toolbarButton;
// from 'TabSelect' event
if ( tabId === undefined ) {
tabId = curTabId;
} else if ( badge !== undefined ) {
tb.tabs[tabId] = { badge: badge, img: iconStatus === 'on' };
}
if ( tabId === curTabId ) {
tb.updateState(win, tabId);
}
};
/******************************************************************************/
vAPI.messaging = {
get globalMessageManager() {
return Cc['@mozilla.org/globalmessagemanager;1']
.getService(Ci.nsIMessageListenerManager);
},
frameScriptURL: vAPI.getURL('frameScript.js'),
listeners: {},
defaultHandler: null,
NOOPFUNC: function(){},
UNHANDLED: 'vAPI.messaging.notHandled'
};
/******************************************************************************/
vAPI.messaging.listen = function(listenerName, callback) {
this.listeners[listenerName] = callback;
};
/******************************************************************************/
vAPI.messaging.onMessage = (function() {
var messaging = vAPI.messaging;
var toAuxPending = {};
// Use a wrapper to avoid closure and to allow reuse.
var CallbackWrapper = function(messageManager, listenerId, channelName, auxProcessId, timeout) {
this.callback = this.proxy.bind(this); // bind once
this.init(messageManager, listenerId, channelName, auxProcessId, timeout);
};
CallbackWrapper.prototype.init = function(messageManager, listenerId, channelName, auxProcessId, timeout) {
this.messageManager = messageManager;
this.listenerId = listenerId;
this.channelName = channelName;
this.auxProcessId = auxProcessId;
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;
}
var message = JSON.stringify({
auxProcessId: this.auxProcessId,
channelName: this.channelName,
msg: response !== undefined ? response : null
});
if ( this.messageManager.sendAsyncMessage ) {
this.messageManager.sendAsyncMessage(this.listenerId, message);
} else {
this.messageManager.broadcastAsyncMessage(this.listenerId, message);
}
// Mark for reuse
this.messageManager =
this.listenerId =
this.channelName =
this.auxProcessId = null;
callbackWrapperJunkyard.push(this);
};
var callbackWrapperJunkyard = [];
var callbackWrapperFactory = function(messageManager, listenerId, channelName, auxProcessId, timeout) {
var wrapper = callbackWrapperJunkyard.pop();
if ( wrapper ) {
return wrapper.init(messageManager, listenerId, channelName, auxProcessId, timeout);
}
return new CallbackWrapper(messageManager, listenerId, channelName, auxProcessId, timeout);
};
// "Auxiliary process": any process other than main process.
var toAux = function(target, details) {
var messageManagerFrom = target.messageManager;
// Message came from a popup, and its message manager is not usable.
// So instead we broadcast to the parent window.
if ( !messageManagerFrom ) {
messageManagerFrom = getOwnerWindow(
target.webNavigation.QueryInterface(Ci.nsIDocShell).chromeEventHandler
).messageManager;
}
var wrapper;
if ( details.auxProcessId !== undefined ) {
var channelNameRaw = details.channelName;
var pos = channelNameRaw.indexOf('|');
wrapper = callbackWrapperFactory(
messageManagerFrom,
channelNameRaw.slice(0, pos),
channelNameRaw.slice(pos + 1),
details.auxProcessId,
1023
);
}
var messageManagerTo = null;
var browser = tabWatcher.browserFromTabId(details.toTabId);
if ( browser !== null && browser.messageManager ) {
messageManagerTo = browser.messageManager;
}
if ( messageManagerTo === null ) {
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;
}
var targetId = location.host + ':broadcast';
var payload = JSON.stringify({
mainProcessId: wrapper && wrapper.timerId,
channelName: details.toChannel,
msg: details.msg
});
if ( messageManagerTo.sendAsyncMessage ) {
messageManagerTo.sendAsyncMessage(targetId, payload);
} else {
messageManagerTo.broadcastAsyncMessage(targetId, payload);
}
};
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({target, data}) {
// Auxiliary process to auxiliary process
if ( data.toTabId !== undefined ) {
toAux(target, data);
return;
}
// Auxiliary process to auxiliary process: response
if ( data.mainProcessId !== undefined ) {
toAuxResponse(data);
return;
}
// Auxiliary process to main process
var messageManager = target.messageManager;
// Message came from a popup, and its message manager is not usable.
// So instead we broadcast to the parent window.
if ( !messageManager ) {
messageManager = getOwnerWindow(
target.webNavigation.QueryInterface(Ci.nsIDocShell).chromeEventHandler
).messageManager;
}
var channelNameRaw = data.channelName;
var pos = channelNameRaw.indexOf('|');
var channelName = channelNameRaw.slice(pos + 1);
// Auxiliary process to main process: prepare response
var callback = messaging.NOOPFUNC;
if ( data.auxProcessId !== undefined ) {
callback = callbackWrapperFactory(
messageManager,
channelNameRaw.slice(0, pos),
channelName,
data.auxProcessId
).callback;
}
var sender = {
tab: {
id: tabWatcher.tabIdFromTarget(target)
}
};
// Auxiliary process to main process: specific handler
var r = messaging.UNHANDLED;
var listener = messaging.listeners[channelName];
if ( typeof listener === 'function' ) {
r = listener(data.msg, sender, callback);
}
if ( r !== messaging.UNHANDLED ) {
return;
}
// Auxiliary process to main process: default handler
r = messaging.defaultHandler(data.msg, sender, callback);
if ( r !== messaging.UNHANDLED ) {
return;
}
// Auxiliary process to main process: no handler
console.error('uBlock> messaging > unknown request: %o', data);
// Need to callback anyways in case caller expected an answer, or
// else there is a memory leak on caller's side
callback();
};
})();
/******************************************************************************/
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;
this.globalMessageManager.addMessageListener(
location.host + ':background',
this.onMessage
);
this.globalMessageManager.loadFrameScript(this.frameScriptURL, true);
cleanupTasks.push(function() {
var gmm = vAPI.messaging.globalMessageManager;
gmm.broadcastAsyncMessage(
location.host + ':broadcast',
JSON.stringify({
broadcast: true,
channelName: 'vAPI',
msg: { cmd: 'shutdownSandbox' }
})
);
gmm.removeDelayedFrameScript(vAPI.messaging.frameScriptURL);
gmm.removeMessageListener(
location.host + ':background',
vAPI.messaging.onMessage
);
vAPI.messaging.defaultHandler = null;
});
};
/******************************************************************************/
vAPI.messaging.broadcast = function(message) {
this.globalMessageManager.broadcastAsyncMessage(
location.host + ':broadcast',
JSON.stringify({broadcast: true, msg: message})
);
};
/******************************************************************************/
/******************************************************************************/
// Synchronous messaging: Firefox allows this. Chromium does not allow this.
// Sometimes there is no way around synchronous messaging, as long as:
// - the code at the other end execute fast and return quickly.
// - it's not abused.
// Original rationale is <https://github.com/gorhill/uBlock/issues/756>.
// Synchronous messaging is a good solution for this case because:
// - It's done only *once* per page load. (Keep in mind there is already a
// sync message sent for each single network request on a page and it's not
// an issue, because the code executed is trivial, which is the key -- see
// shouldLoadListener below).
// - The code at the other end is fast.
// Though vAPI.rpcReceiver was brought forth because of this one case, I
// generalized the concept for whatever future need for synchronous messaging
// which might arise.
// https://developer.mozilla.org/en-US/Firefox/Multiprocess_Firefox/Message_Manager/Message_manager_overview#Content_frame_message_manager
vAPI.rpcReceiver = (function() {
var calls = Object.create(null);
var childProcessMessageName = location.host + ':child-process-message';
var onChildProcessMessage = function(ev) {
var msg = ev.data;
if ( !msg ) { return; }
var fn = calls[msg.fnName];
if ( typeof fn === 'function' ) {
return fn(msg);
}
};
if ( Services.ppmm ) {
Services.ppmm.addMessageListener(
childProcessMessageName,
onChildProcessMessage
);
}
cleanupTasks.push(function() {
if ( Services.ppmm ) {
Services.ppmm.removeMessageListener(
childProcessMessageName,
onChildProcessMessage
);
}
});
return calls;
})();
/******************************************************************************/
/******************************************************************************/
var httpObserver = {
classDescription: 'net-channel-event-sinks for ' + location.host,
classID: Components.ID('{dc8d6319-5f6e-4438-999e-53722db99e84}'),
contractID: '@' + location.host + '/net-channel-event-sinks;1',
REQDATAKEY: location.host + 'reqdata',
ABORT: Components.results.NS_BINDING_ABORTED,
ACCEPT: Components.results.NS_SUCCEEDED,
// Request types:
// https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIContentPolicy#Constants
MAIN_FRAME: Ci.nsIContentPolicy.TYPE_DOCUMENT,
VALID_CSP_TARGETS: 1 << Ci.nsIContentPolicy.TYPE_DOCUMENT |
1 << Ci.nsIContentPolicy.TYPE_SUBDOCUMENT,
typeMap: {
1: 'other',
2: 'script',
3: 'image',
4: 'stylesheet',
5: 'object',
6: 'main_frame',
7: 'sub_frame',
10: 'ping',
11: 'xmlhttprequest',
12: 'object',
14: 'font',
15: 'media',
16: 'websocket',
19: 'beacon',
21: 'image'
},
get componentRegistrar() {
return Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
},
get categoryManager() {
return Cc['@mozilla.org/categorymanager;1']
.getService(Ci.nsICategoryManager);
},
QueryInterface: (function() {
var {XPCOMUtils} = Cu.import('resource://gre/modules/XPCOMUtils.jsm', null);
return XPCOMUtils.generateQI([
Ci.nsIFactory,
Ci.nsIObserver,
Ci.nsIChannelEventSink,
Ci.nsISupportsWeakReference
]);
})(),
createInstance: function(outer, iid) {
if ( outer ) {
throw Components.results.NS_ERROR_NO_AGGREGATION;
}
return this.QueryInterface(iid);
},
register: function() {
this.pendingRingBufferInit();
Services.obs.addObserver(this, 'http-on-opening-request', true);
Services.obs.addObserver(this, 'http-on-examine-response', true);
// Guard against stale instances not having been unregistered
if ( this.componentRegistrar.isCIDRegistered(this.classID) ) {
try {
this.componentRegistrar.unregisterFactory(this.classID, Components.manager.getClassObject(this.classID, Ci.nsIFactory));
} catch (ex) {
console.error('uBlock> httpObserver > unable to unregister stale instance: ', ex);
}
}
this.componentRegistrar.registerFactory(
this.classID,
this.classDescription,
this.contractID,
this
);
this.categoryManager.addCategoryEntry(
'net-channel-event-sinks',
this.contractID,
this.contractID,
false,
true
);
},
unregister: function() {
Services.obs.removeObserver(this, 'http-on-opening-request');
Services.obs.removeObserver(this, 'http-on-examine-response');
this.componentRegistrar.unregisterFactory(this.classID, this);
this.categoryManager.deleteCategoryEntry(
'net-channel-event-sinks',
this.contractID,
false
);
},
PendingRequest: function() {
this.frameId = 0;
this.parentFrameId = 0;
this.rawtype = 0;
this.sourceTabId = null;
this.tabId = 0;
this._key = ''; // key is url, from URI.spec
},
// If all work fine, this map should not grow indefinitely. It can have
// stale items in it, but these will be taken care of when entries in
// the ring buffer are overwritten.
pendingURLToIndex: new Map(),
pendingWritePointer: 0,
pendingRingBuffer: new Array(32),
pendingRingBufferInit: function() {
// Use and reuse pre-allocated PendingRequest objects = less memory
// churning.
var i = this.pendingRingBuffer.length;
while ( i-- ) {
this.pendingRingBuffer[i] = new this.PendingRequest();
}
},
createPendingRequest: function(url) {
var bucket;
var i = this.pendingWritePointer;
this.pendingWritePointer = i + 1 & 31;
var preq = this.pendingRingBuffer[i];
// Cleanup unserviced pending request
if ( preq._key !== '' ) {
bucket = this.pendingURLToIndex.get(preq._key);
if ( Array.isArray(bucket) ) {
// Assuming i in array
var pos = bucket.indexOf(i);
bucket.splice(pos, 1);
if ( bucket.length === 1 ) {
this.pendingURLToIndex.set(preq._key, bucket[0]);
}
} else if ( typeof bucket === 'number' ) {
// Assuming bucket === i
this.pendingURLToIndex.delete(preq._key);
}
}
// Would be much simpler if a url could not appear more than once.
bucket = this.pendingURLToIndex.get(url);
if ( bucket === undefined ) {
this.pendingURLToIndex.set(url, i);
} else if ( Array.isArray(bucket) ) {
bucket = bucket.push(i);
} else {
bucket = [bucket, i];
}
preq._key = url;
return preq;
},
lookupPendingRequest: function(url) {
var i = this.pendingURLToIndex.get(url);
if ( i === undefined ) {
return null;
}
if ( Array.isArray(i) ) {
var bucket = i;
i = bucket.shift();
if ( bucket.length === 1 ) {
this.pendingURLToIndex.set(url, bucket[0]);
}
} else {
this.pendingURLToIndex.delete(url);
}
var preq = this.pendingRingBuffer[i];
preq._key = ''; // mark as "serviced"
return preq;
},
handlePopup: function(URI, tabId, sourceTabId) {
if ( !sourceTabId ) {
return false;
}
if ( !URI.schemeIs('http') && !URI.schemeIs('https') ) {
return false;
}
var result = vAPI.tabs.onPopup({
targetTabId: tabId,
openerTabId: sourceTabId,
targetURL: URI.asciiSpec
});
return result === true;
},
handleRequest: function(channel, URI, details) {
var onBeforeRequest = vAPI.net.onBeforeRequest;
var type = this.typeMap[details.rawtype] || 'other';
if ( onBeforeRequest.types && onBeforeRequest.types.has(type) === false ) {
return false;
}
var result = onBeforeRequest.callback({
frameId: details.frameId,
hostname: URI.asciiHost,
parentFrameId: details.parentFrameId,
tabId: details.tabId,
type: type,
url: URI.asciiSpec
});
if ( !result || typeof result !== 'object' ) {
return false;
}
if ( result.cancel === true ) {
channel.cancel(this.ABORT);
return true;
}
return false;
},
observe: function(channel, topic) {
if ( channel instanceof Ci.nsIHttpChannel === false ) {
return;
}
var URI = channel.URI;
var channelData, result;
if ( topic === 'http-on-examine-response' ) {
if ( !(channel instanceof Ci.nsIWritablePropertyBag) ) {
return;
}
try {
channelData = channel.getProperty(this.REQDATAKEY);
} catch (ex) {
return;
}
if ( !channelData ) {
return;
}
if ( (1 << channelData[4] & this.VALID_CSP_TARGETS) === 0 ) {
return;
}
topic = 'Content-Security-Policy';
try {
result = channel.getResponseHeader(topic);
} catch (ex) {
result = null;
}
result = vAPI.net.onHeadersReceived.callback({
hostname: URI.asciiHost,
parentFrameId: channelData[1],
responseHeaders: result ? [{name: topic, value: result}] : [],
tabId: channelData[3],
type: this.typeMap[channelData[4]] || 'other',
url: URI.asciiSpec
});
if ( result ) {
channel.setResponseHeader(
topic,
result.responseHeaders.pop().value,
true
);
}
return;
}
// http-on-opening-request
//console.log('http-on-opening-request:', URI.spec);
var pendingRequest = this.lookupPendingRequest(URI.spec);
var rawtype = channel.loadInfo && channel.loadInfo.contentPolicyType || 1;
// Behind-the-scene request
if ( pendingRequest === null ) {
if ( this.handleRequest(channel, URI, { tabId: vAPI.noTabId, rawtype: rawtype }) ) {
return;
}
// Carry data for behind-the-scene redirects
if ( channel instanceof Ci.nsIWritablePropertyBag ) {
channel.setProperty( this.REQDATAKEY, [0, -1, null, vAPI.noTabId, rawtype]);
}
return;
}
// https://github.com/gorhill/uBlock/issues/654
// Use the request type from the HTTP observer point of view.
if ( rawtype !== 1 ) {
pendingRequest.rawtype = rawtype;
}
if ( this.handleRequest(channel, URI, pendingRequest) ) {
return;
}
// If request is not handled we may use the data in on-modify-request
if ( channel instanceof Ci.nsIWritablePropertyBag ) {
channel.setProperty(this.REQDATAKEY, [
pendingRequest.frameId,
pendingRequest.parentFrameId,
pendingRequest.sourceTabId,
pendingRequest.tabId,
pendingRequest.rawtype
]);
}
},
// contentPolicy.shouldLoad doesn't detect redirects, this needs to be used
asyncOnChannelRedirect: function(oldChannel, newChannel, flags, callback) {
var result = this.ACCEPT;
// If error thrown, the redirect will fail
try {
var URI = newChannel.URI;
if ( !URI.schemeIs('http') && !URI.schemeIs('https') ) {
return;
}
if ( !(oldChannel instanceof Ci.nsIWritablePropertyBag) ) {
return;
}
var channelData = oldChannel.getProperty(this.REQDATAKEY);
if ( this.handlePopup(URI, channelData[3], channelData[2]) ) {
result = this.ABORT;
return;
}
var details = {
frameId: channelData[0],
parentFrameId: channelData[1],
tabId: channelData[3],
rawtype: channelData[4]
};
if ( this.handleRequest(newChannel, URI, details) ) {
result = this.ABORT;
return;
}
// Carry the data on in case of multiple redirects
if ( newChannel instanceof Ci.nsIWritablePropertyBag ) {
newChannel.setProperty(this.REQDATAKEY, channelData);
}
} catch (ex) {
// console.error(ex);
} finally {
callback.onRedirectVerifyCallback(result);
}
}
};
/******************************************************************************/
vAPI.net = {};
/******************************************************************************/
vAPI.net.registerListeners = function() {
// Since it's not used
this.onBeforeSendHeaders = null;
this.onBeforeRequest.types = this.onBeforeRequest.types ?
new Set(this.onBeforeRequest.types) :
null;
var shouldLoadListenerMessageName = location.host + ':shouldLoad';
var shouldLoadListener = function(e) {
// Non blocking: it is assumed that the http observer is fired after
// shouldLoad recorded the pending requests. If this is not the case,
// a request would end up being categorized as a behind-the-scene
// requests.
var details = e.data;
var tabId = tabWatcher.tabIdFromTarget(e.target);
var sourceTabId = null;
// Popup candidate: this code path is taken only for when a new top
// document loads, i.e. only once per document load. TODO: evaluate for
// popup filtering in an asynchrous manner -- it's not really required
// to evaluate on the spot. Still, there is currently no harm given
// this code path is typically taken only once per page load.
if ( details.openerURL ) {
for ( var browser of tabWatcher.browsers() ) {
var URI = browser.currentURI;
// Probably isn't the best method to identify the source tab.
// https://github.com/gorhill/uBlock/issues/450
// Skip entry if no valid URI available.
// Apparently URI can be undefined under some circumstances: I
// believe this may have to do with those very temporary
// browser objects created when opening a new tab, i.e. related
// to https://github.com/gorhill/uBlock/issues/212
if ( !URI || URI.spec !== details.openerURL ) {
continue;
}
sourceTabId = tabWatcher.tabIdFromTarget(browser);
if ( sourceTabId === tabId ) {
sourceTabId = null;
continue;
}
URI = Services.io.newURI(details.url, null, null);
if ( httpObserver.handlePopup(URI, tabId, sourceTabId) ) {
return;
}
break;
}
}
// We are being called synchronously from the content process, so we
// must return ASAP. The code below merely record the details of the
// request into a ring buffer for later retrieval by the HTTP observer.
var pendingReq = httpObserver.createPendingRequest(details.url);
pendingReq.frameId = details.frameId;
pendingReq.parentFrameId = details.parentFrameId;
pendingReq.rawtype = details.rawtype;
pendingReq.sourceTabId = sourceTabId;
pendingReq.tabId = tabId;
};
vAPI.messaging.globalMessageManager.addMessageListener(
shouldLoadListenerMessageName,
shouldLoadListener
);
var locationChangedListenerMessageName = location.host + ':locationChanged';
var locationChangedListener = function(e) {
var browser = e.target;
// I have seen this happens (at startup time)
if ( !browser.currentURI ) {
return;
}
// https://github.com/gorhill/uBlock/issues/697
// Dismiss event if the associated tab is pending.
var tab = tabWatcher.tabFromBrowser(browser);
if ( !vAPI.fennec && tab && tab.hasAttribute('pending') ) {
// https://github.com/gorhill/uBlock/issues/820
// Firefox quirk: it happens the `pending` attribute was not
// present for certain tabs at startup -- and this can cause
// unwanted [browser <--> tab id] associations internally.
// Dispose of these if it is found the `pending` attribute is
// set.
tabWatcher.removeTarget(tab);
return;
}
var details = e.data;
var tabId = tabWatcher.tabIdFromTarget(browser);
// Ignore notifications related to our popup
if ( details.url.lastIndexOf(vAPI.getURL('popup.html'), 0) === 0 ) {
return;
}
// LOCATION_CHANGE_SAME_DOCUMENT = "did not load a new document"
if ( details.flags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT ) {
vAPI.tabs.onUpdated(tabId, {url: details.url}, {
frameId: 0,
tabId: tabId,
url: browser.currentURI.asciiSpec
});
return;
}
// https://github.com/chrisaljoudi/uBlock/issues/105
// Allow any kind of pages
vAPI.tabs.onNavigation({
frameId: 0,
tabId: tabId,
url: details.url,
});
};
vAPI.messaging.globalMessageManager.addMessageListener(
locationChangedListenerMessageName,
locationChangedListener
);
httpObserver.register();
cleanupTasks.push(function() {
vAPI.messaging.globalMessageManager.removeMessageListener(
shouldLoadListenerMessageName,
shouldLoadListener
);
vAPI.messaging.globalMessageManager.removeMessageListener(
locationChangedListenerMessageName,
locationChangedListener
);
httpObserver.unregister();
});
};
/******************************************************************************/
/******************************************************************************/
vAPI.toolbarButton = {
id: location.host + '-button',
type: 'view',
viewId: location.host + '-panel',
label: vAPI.app.name,
tooltiptext: vAPI.app.name,
tabs: {/*tabId: {badge: 0, img: boolean}*/},
init: null,
codePath: ''
};
/******************************************************************************/
// Fennec
(function() {
if ( !vAPI.fennec ) {
return;
}
var tbb = vAPI.toolbarButton;
tbb.codePath = 'fennec';
var menuItemIds = new WeakMap();
var shutdown = function() {
for ( var win of vAPI.tabs.getWindows() ) {
var id = menuItemIds.get(win);
if ( !id ) {
continue;
}
win.NativeWindow.menu.remove(id);
menuItemIds.delete(win);
}
};
tbb.getMenuItemLabel = function(tabId) {
var label = this.label;
if ( tabId === undefined ) {
return label;
}
var tabDetails = this.tabs[tabId];
if ( !tabDetails ) {
return label;
}
if ( !tabDetails.img ) {
label += ' (' + vAPI.i18n('fennecMenuItemBlockingOff') + ')';
} else if ( tabDetails.badge ) {
label += ' (' + tabDetails.badge + ')';
}
return label;
};
tbb.onClick = function() {
var win = Services.wm.getMostRecentWindow('navigator:browser');
var curTabId = tabWatcher.tabIdFromTarget(getTabBrowser(win).selectedTab);
vAPI.tabs.open({
url: 'popup.html?tabId=' + curTabId,
index: -1,
select: true
});
};
tbb.updateState = function(win, tabId) {
var id = menuItemIds.get(win);
if ( !id ) {
return;
}
win.NativeWindow.menu.update(id, {
name: this.getMenuItemLabel(tabId)
});
};
tbb.init = function() {
// Only actually expecting one window under Fennec (note, not tabs, windows)
for ( var win of vAPI.tabs.getWindows() ) {
var label = this.getMenuItemLabel();
var id = win.NativeWindow.menu.add({
name: label,
callback: this.onClick
});
menuItemIds.set(win, id);
}
cleanupTasks.push(shutdown);
};
})();
/******************************************************************************/
// Non-Fennec: common code paths.
(function() {
if ( vAPI.fennec ) {
return;
}
var tbb = vAPI.toolbarButton;
tbb.onViewShowing = function({target}) {
target.firstChild.setAttribute('src', vAPI.getURL('popup.html'));
};
tbb.onViewHiding = function({target}) {
target.parentNode.style.maxWidth = '';
target.firstChild.setAttribute('src', 'about:blank');
};
tbb.updateState = function(win, tabId) {
var button = win.document.getElementById(this.id);
if ( !button ) {
return;
}
var icon = this.tabs[tabId];
button.setAttribute('badge', icon && icon.badge || '');
button.classList.toggle('off', !icon || !icon.img);
};
tbb.populatePanel = function(doc, panel) {
panel.setAttribute('id', this.viewId);
var iframe = doc.createElement('iframe');
iframe.setAttribute('type', 'content');
panel.appendChild(iframe);
var toPx = function(pixels) {
return pixels.toString() + 'px';
};
var resizeTimer = null;
var resizePopupDelayed = function(attempts) {
if ( resizeTimer !== null ) {
return;
}
// Sanity check
attempts = (attempts || 0) + 1;
if ( attempts > 1/*000*/ ) {
console.error('uBlock0> resizePopupDelayed: giving up after too many attempts');
return;
}
resizeTimer = vAPI.setTimeout(resizePopup, 10, attempts);
};
var resizePopup = function(attempts) {
resizeTimer = null;
var body = iframe.contentDocument.body;
panel.parentNode.style.maxWidth = 'none';
// https://github.com/gorhill/uMatrix/issues/362
panel.parentNode.style.opacity = '1';
// https://github.com/chrisaljoudi/uBlock/issues/730
// Voodoo programming: this recipe works
var clientHeight = body.clientHeight;
iframe.style.height = toPx(clientHeight);
panel.style.height = toPx(clientHeight + panel.boxObject.height - panel.clientHeight);
var clientWidth = body.clientWidth;
iframe.style.width = toPx(clientWidth);
panel.style.width = toPx(clientWidth + panel.boxObject.width - panel.clientWidth);
if ( iframe.clientHeight !== body.clientHeight || iframe.clientWidth !== body.clientWidth ) {
resizePopupDelayed(attempts);
}
};
var onPopupReady = function() {
var win = this.contentWindow;
if ( !win || win.location.host !== location.host ) {
return;
}
if ( typeof tbb.onBeforePopupReady === 'function' ) {
tbb.onBeforePopupReady.call(this);
}
new win.MutationObserver(resizePopupDelayed).observe(win.document.body, {
attributes: true,
characterData: true,
subtree: true
});
resizePopupDelayed();
};
iframe.addEventListener('load', onPopupReady, true);
};
})();
/******************************************************************************/
// Firefox 28 and less
(function() {
var tbb = vAPI.toolbarButton;
if ( tbb.init !== null ) {
return;
}
var CustomizableUI = null;
var forceLegacyToolbarButton = vAPI.localStorage.getBool('forceLegacyToolbarButton');
if ( !forceLegacyToolbarButton ) {
try {
CustomizableUI = Cu.import('resource:///modules/CustomizableUI.jsm', null).CustomizableUI;
} catch (ex) {
}
}
if ( CustomizableUI !== null ) {
return;
}
tbb.codePath = 'legacy';
tbb.id = 'uBlock0-legacy-button'; // NOTE: must match legacy-toolbar-button.css
tbb.viewId = tbb.id + '-panel';
var sss = null;
var styleSheetUri = null;
var addLegacyToolbarButton = function(window) {
var document = window.document;
var toolbox = document.getElementById('navigator-toolbox') ||
document.getElementById('mail-toolbox');
if ( !toolbox ) {
return;
}
// palette might take a little longer to appear on some platforms,
// give it a small delay and try again.
var palette = toolbox.palette;
if ( !palette ) {
vAPI.setTimeout(function() {
if ( toolbox.palette ) {
addLegacyToolbarButton(window);
}
}, 250);
return;
}
var toolbarButton = document.createElement('toolbarbutton');
toolbarButton.setAttribute('id', tbb.id);
// type = panel would be more accurate, but doesn't look as good
toolbarButton.setAttribute('type', 'menu');
toolbarButton.setAttribute('removable', 'true');
toolbarButton.setAttribute('class', 'toolbarbutton-1 chromeclass-toolbar-additional');
toolbarButton.setAttribute('label', tbb.label);
toolbarButton.setAttribute('tooltiptext', tbb.label);
var toolbarButtonPanel = document.createElement('panel');
// NOTE: Setting level to parent breaks the popup for PaleMoon under
// linux (mouse pointer misaligned with content). For some reason.
// toolbarButtonPanel.setAttribute('level', 'parent');
tbb.populatePanel(document, toolbarButtonPanel);
toolbarButtonPanel.addEventListener('popupshowing', tbb.onViewShowing);
toolbarButtonPanel.addEventListener('popuphiding', tbb.onViewHiding);
toolbarButton.appendChild(toolbarButtonPanel);
palette.appendChild(toolbarButton);
tbb.closePopup = function() {
toolbarButtonPanel.hidePopup();
};
// No button yet so give it a default location. If forcing the button,
// just put in in the palette rather than on any specific toolbar (who
// knows what toolbars will be available or visible!)
var toolbar;
if ( !vAPI.localStorage.getBool('legacyToolbarButtonAdded') ) {
vAPI.localStorage.setBool('legacyToolbarButtonAdded', 'true');
toolbar = document.getElementById('nav-bar');
if ( toolbar === null ) {
return;
}
// https://github.com/gorhill/uBlock/issues/264
// Find a child customizable palette, if any.
toolbar = toolbar.querySelector('.customization-target') || toolbar;
toolbar.appendChild(toolbarButton);
toolbar.setAttribute('currentset', toolbar.currentSet);
document.persist(toolbar.id, 'currentset');
return;
}
// Find the place to put the button
var toolbars = toolbox.externalToolbars.slice();
for ( var child of toolbox.children ) {
if ( child.localName === 'toolbar' ) {
toolbars.push(child);
}
}
for ( toolbar of toolbars ) {
var currentsetString = toolbar.getAttribute('currentset');
if ( !currentsetString ) {
continue;
}
var currentset = currentsetString.split(',');
var index = currentset.indexOf(tbb.id);
if ( index === -1 ) {
continue;
}
// Found our button on this toolbar - but where on it?
var before = null;
for ( var i = index + 1; i < currentset.length; i++ ) {
before = document.getElementById(currentset[i]);
if ( before === null ) {
continue;
}
toolbar.insertItem(tbb.id, before);
break;
}
if ( before === null ) {
toolbar.insertItem(tbb.id);
}
}
};
var onPopupCloseRequested = function({target}) {
if ( typeof tbb.closePopup === 'function' ) {
tbb.closePopup(target);
}
};
var shutdown = function() {
for ( var win of vAPI.tabs.getWindows() ) {
var toolbarButton = win.document.getElementById(tbb.id);
if ( toolbarButton ) {
toolbarButton.parentNode.removeChild(toolbarButton);
}
}
if ( sss === null ) {
return;
}
if ( sss.sheetRegistered(styleSheetUri, sss.AUTHOR_SHEET) ) {
sss.unregisterSheet(styleSheetUri, sss.AUTHOR_SHEET);
}
sss = null;
styleSheetUri = null;
vAPI.messaging.globalMessageManager.removeMessageListener(
location.host + ':closePopup',
onPopupCloseRequested
);
};
tbb.attachToNewWindow = function(win) {
addLegacyToolbarButton(win);
};
tbb.init = function() {
vAPI.messaging.globalMessageManager.addMessageListener(
location.host + ':closePopup',
onPopupCloseRequested
);
sss = Cc["@mozilla.org/content/style-sheet-service;1"].getService(Ci.nsIStyleSheetService);
styleSheetUri = Services.io.newURI(vAPI.getURL("css/legacy-toolbar-button.css"), null, null);
// Register global so it works in all windows, including palette
if ( !sss.sheetRegistered(styleSheetUri, sss.AUTHOR_SHEET) ) {
sss.loadAndRegisterSheet(styleSheetUri, sss.AUTHOR_SHEET);
}
cleanupTasks.push(shutdown);
};
})();
/******************************************************************************/
// Firefox Australis < 36.
(function() {
var tbb = vAPI.toolbarButton;
if ( tbb.init !== null ) {
return;
}
if ( Services.vc.compare(Services.appinfo.platformVersion, '36.0') >= 0 ) {
return null;
}
if ( vAPI.localStorage.getBool('forceLegacyToolbarButton') ) {
return null;
}
var CustomizableUI = null;
try {
CustomizableUI = Cu.import('resource:///modules/CustomizableUI.jsm', null).CustomizableUI;
} catch (ex) {
}
if ( CustomizableUI === null ) {
return;
}
tbb.codePath = 'australis';
tbb.CustomizableUI = CustomizableUI;
tbb.defaultArea = CustomizableUI.AREA_NAVBAR;
var styleURI = null;
var onPopupCloseRequested = function({target}) {
if ( typeof tbb.closePopup === 'function' ) {
tbb.closePopup(target);
}
};
var shutdown = function() {
CustomizableUI.destroyWidget(tbb.id);
for ( var win of vAPI.tabs.getWindows() ) {
var panel = win.document.getElementById(tbb.viewId);
panel.parentNode.removeChild(panel);
win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.removeSheet(styleURI, 1);
}
vAPI.messaging.globalMessageManager.removeMessageListener(
location.host + ':closePopup',
onPopupCloseRequested
);
};
tbb.onBeforeCreated = function(doc) {
var panel = doc.createElement('panelview');
this.populatePanel(doc, panel);
doc.getElementById('PanelUI-multiView').appendChild(panel);
doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.loadSheet(styleURI, 1);
};
tbb.onBeforePopupReady = function() {
// https://github.com/gorhill/uBlock/issues/83
// Add `portrait` class if width is constrained.
try {
this.contentDocument.body.classList.toggle(
'portrait',
CustomizableUI.getWidget(tbb.id).areaType === CustomizableUI.TYPE_MENU_PANEL
);
} catch (ex) {
/* noop */
}
};
tbb.init = function() {
vAPI.messaging.globalMessageManager.addMessageListener(
location.host + ':closePopup',
onPopupCloseRequested
);
var style = [
'#' + this.id + '.off {',
'list-style-image: url(',
vAPI.getURL('img/browsericons/icon16-off.svg'),
');',
'}',
'#' + this.id + ' {',
'list-style-image: url(',
vAPI.getURL('img/browsericons/icon16.svg'),
');',
'}',
'#' + this.viewId + ',',
'#' + this.viewId + ' > iframe {',
'width: 160px;',
'height: 290px;',
'overflow: hidden !important;',
'}',
'#' + this.id + '[badge]:not([badge=""])::after {',
'position: absolute;',
'margin-left: -16px;',
'margin-top: 3px;',
'padding: 1px 2px;',
'font-size: 9px;',
'font-weight: bold;',
'color: #fff;',
'background: #666;',
'content: attr(badge);',
'}'
];
styleURI = Services.io.newURI(
'data:text/css,' + encodeURIComponent(style.join('')),
null,
null
);
this.closePopup = function(tabBrowser) {
CustomizableUI.hidePanelForNode(
tabBrowser.ownerDocument.getElementById(this.viewId)
);
};
CustomizableUI.createWidget(this);
cleanupTasks.push(shutdown);
};
})();
/******************************************************************************/
// Firefox Australis >= 36.
(function() {
var tbb = vAPI.toolbarButton;
if ( tbb.init !== null ) {
return;
}
if ( Services.vc.compare(Services.appinfo.platformVersion, '36.0') < 0 ) {
return null;
}
if ( vAPI.localStorage.getBool('forceLegacyToolbarButton') ) {
return null;
}
var CustomizableUI = null;
try {
CustomizableUI = Cu.import('resource:///modules/CustomizableUI.jsm', null).CustomizableUI;
} catch (ex) {
}
if ( CustomizableUI === null ) {
return null;
}
tbb.codePath = 'australis';
tbb.CustomizableUI = CustomizableUI;
tbb.defaultArea = CustomizableUI.AREA_NAVBAR;
var CUIEvents = {};
var badgeCSSRules = [
'background: #666',
'color: #fff'
].join(';');
var updateBadgeStyle = function() {
for ( var win of vAPI.tabs.getWindows() ) {
var button = win.document.getElementById(tbb.id);
if ( button === null ) {
continue;
}
var badge = button.ownerDocument.getAnonymousElementByAttribute(
button,
'class',
'toolbarbutton-badge'
);
if ( !badge ) {
continue;
}
badge.style.cssText = badgeCSSRules;
}
};
var updateBadge = function() {
var wId = tbb.id;
var buttonInPanel = CustomizableUI.getWidget(wId).areaType === CustomizableUI.TYPE_MENU_PANEL;
for ( var win of vAPI.tabs.getWindows() ) {
var button = win.document.getElementById(wId);
if ( button === null ) {
continue;
}
if ( buttonInPanel ) {
button.classList.remove('badged-button');
continue;
}
button.classList.add('badged-button');
}
if ( buttonInPanel ) {
return;
}
// Anonymous elements need some time to be reachable
vAPI.setTimeout(updateBadgeStyle, 250);
}.bind(CUIEvents);
// https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/CustomizableUI.jsm#Listeners
CUIEvents.onCustomizeEnd = updateBadge;
CUIEvents.onWidgetAdded = updateBadge;
CUIEvents.onWidgetUnderflow = updateBadge;
var onPopupCloseRequested = function({target}) {
if ( typeof tbb.closePopup === 'function' ) {
tbb.closePopup(target);
}
};
var shutdown = function() {
CustomizableUI.removeListener(CUIEvents);
CustomizableUI.destroyWidget(tbb.id);
for ( var win of vAPI.tabs.getWindows() ) {
var panel = win.document.getElementById(tbb.viewId);
panel.parentNode.removeChild(panel);
win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.removeSheet(styleURI, 1);
}
vAPI.messaging.globalMessageManager.removeMessageListener(
location.host + ':closePopup',
onPopupCloseRequested
);
};
var styleURI = null;
tbb.onBeforeCreated = function(doc) {
var panel = doc.createElement('panelview');
this.populatePanel(doc, panel);
doc.getElementById('PanelUI-multiView').appendChild(panel);
doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.loadSheet(styleURI, 1);
};
tbb.onCreated = function(button) {
button.setAttribute('badge', '');
vAPI.setTimeout(updateBadge, 250);
};
tbb.onBeforePopupReady = function() {
// https://github.com/gorhill/uBlock/issues/83
// Add `portrait` class if width is constrained.
try {
this.contentDocument.body.classList.toggle(
'portrait',
CustomizableUI.getWidget(tbb.id).areaType === CustomizableUI.TYPE_MENU_PANEL
);
} catch (ex) {
/* noop */
}
};
tbb.closePopup = function(tabBrowser) {
CustomizableUI.hidePanelForNode(
tabBrowser.ownerDocument.getElementById(tbb.viewId)
);
};
tbb.init = function() {
vAPI.messaging.globalMessageManager.addMessageListener(
location.host + ':closePopup',
onPopupCloseRequested
);
CustomizableUI.addListener(CUIEvents);
var style = [
'#' + this.id + '.off {',
'list-style-image: url(',
vAPI.getURL('img/browsericons/icon16-off.svg'),
');',
'}',
'#' + this.id + ' {',
'list-style-image: url(',
vAPI.getURL('img/browsericons/icon16.svg'),
');',
'}',
'#' + this.viewId + ',',
'#' + this.viewId + ' > iframe {',
'width: 160px;',
'height: 290px;',
'overflow: hidden !important;',
'}'
];
styleURI = Services.io.newURI(
'data:text/css,' + encodeURIComponent(style.join('')),
null,
null
);
CustomizableUI.createWidget(this);
cleanupTasks.push(shutdown);
};
})();
/******************************************************************************/
// No toolbar button.
(function() {
// Just to ensure the number of cleanup tasks is as expected: toolbar
// button code is one single cleanup task regardless of platform.
if ( vAPI.toolbarButton.init === null ) {
cleanupTasks.push(function(){});
}
})();
/******************************************************************************/
if ( vAPI.toolbarButton.init !== null ) {
vAPI.toolbarButton.init();
}
/******************************************************************************/
/******************************************************************************/
vAPI.contextMenu = {
contextMap: {
frame: 'inFrame',
link: 'onLink',
image: 'onImage',
audio: 'onAudio',
video: 'onVideo',
editable: 'onEditableArea'
}
};
/******************************************************************************/
vAPI.contextMenu.displayMenuItem = function({target}) {
var doc = target.ownerDocument;
var gContextMenu = doc.defaultView.gContextMenu;
if ( !gContextMenu.browser ) {
return;
}
var menuitem = doc.getElementById(vAPI.contextMenu.menuItemId);
var currentURI = gContextMenu.browser.currentURI;
// https://github.com/chrisaljoudi/uBlock/issues/105
// TODO: Should the element picker works on any kind of pages?
if ( !currentURI.schemeIs('http') && !currentURI.schemeIs('https') ) {
menuitem.hidden = true;
return;
}
var ctx = vAPI.contextMenu.contexts;
if ( !ctx ) {
menuitem.hidden = false;
return;
}
var ctxMap = vAPI.contextMenu.contextMap;
for ( var context of ctx ) {
if (
context === 'page' &&
!gContextMenu.onLink &&
!gContextMenu.onImage &&
!gContextMenu.onEditableArea &&
!gContextMenu.inFrame &&
!gContextMenu.onVideo &&
!gContextMenu.onAudio
) {
menuitem.hidden = false;
return;
}
if (
ctxMap.hasOwnProperty(context) &&
gContextMenu[ctxMap[context]]
) {
menuitem.hidden = false;
return;
}
}
menuitem.hidden = true;
};
/******************************************************************************/
vAPI.contextMenu.register = function(doc) {
if ( !this.menuItemId ) {
return;
}
if ( vAPI.fennec ) {
// TODO https://developer.mozilla.org/en-US/Add-ons/Firefox_for_Android/API/NativeWindow/contextmenus/add
/*var nativeWindow = doc.defaultView.NativeWindow;
contextId = nativeWindow.contextmenus.add(
this.menuLabel,
nativeWindow.contextmenus.linkOpenableContext,
this.onCommand
);*/
return;
}
var contextMenu = doc.getElementById('contentAreaContextMenu');
// This can happen (Thunderbird).
if ( contextMenu === null ) {
return;
}
var menuitem = doc.createElement('menuitem');
menuitem.setAttribute('id', this.menuItemId);
menuitem.setAttribute('label', this.menuLabel);
menuitem.setAttribute('image', vAPI.getURL('img/browsericons/icon16.svg'));
menuitem.setAttribute('class', 'menuitem-iconic');
menuitem.addEventListener('command', this.onCommand);
contextMenu.addEventListener('popupshowing', this.displayMenuItem);
contextMenu.insertBefore(menuitem, doc.getElementById('inspect-separator'));
};
/******************************************************************************/
vAPI.contextMenu.unregister = function(doc) {
if ( !this.menuItemId ) {
return;
}
if ( vAPI.fennec ) {
// TODO
return;
}
var menuitem = doc.getElementById(this.menuItemId);
// Not guarantee the menu item was actually registered.
if ( menuitem === null ) {
return;
}
var contextMenu = menuitem.parentNode;
menuitem.removeEventListener('command', this.onCommand);
contextMenu.removeEventListener('popupshowing', this.displayMenuItem);
contextMenu.removeChild(menuitem);
};
/******************************************************************************/
vAPI.contextMenu.create = function(details, callback) {
this.menuItemId = details.id;
this.menuLabel = details.title;
this.contexts = details.contexts;
if ( Array.isArray(this.contexts) && this.contexts.length ) {
this.contexts = this.contexts.indexOf('all') === -1 ? this.contexts : null;
} else {
// default in Chrome
this.contexts = ['page'];
}
this.onCommand = function() {
var gContextMenu = getOwnerWindow(this).gContextMenu;
var details = {
menuItemId: this.id
};
if ( gContextMenu.inFrame ) {
details.tagName = 'iframe';
// Probably won't work with e10s
details.frameUrl = gContextMenu.focusedWindow && gContextMenu.focusedWindow.location.href || '';
} else if ( gContextMenu.onImage ) {
details.tagName = 'img';
details.srcUrl = gContextMenu.mediaURL;
} else if ( gContextMenu.onAudio ) {
details.tagName = 'audio';
details.srcUrl = gContextMenu.mediaURL;
} else if ( gContextMenu.onVideo ) {
details.tagName = 'video';
details.srcUrl = gContextMenu.mediaURL;
} else if ( gContextMenu.onLink ) {
details.tagName = 'a';
details.linkUrl = gContextMenu.linkURL;
}
callback(details, {
id: tabWatcher.tabIdFromTarget(gContextMenu.browser),
url: gContextMenu.browser.currentURI.asciiSpec
});
};
for ( var win of vAPI.tabs.getWindows() ) {
this.register(win.document);
}
};
/******************************************************************************/
vAPI.contextMenu.remove = function() {
for ( var win of vAPI.tabs.getWindows() ) {
this.unregister(win.document);
}
this.menuItemId = null;
this.menuLabel = null;
this.contexts = null;
this.onCommand = null;
};
/******************************************************************************/
/******************************************************************************/
var optionsObserver = {
addonId: 'uBlock0@raymondhill.net',
register: function() {
Services.obs.addObserver(this, 'addon-options-displayed', false);
cleanupTasks.push(this.unregister.bind(this));
var browser = tabWatcher.currentBrowser();
if ( browser && browser.currentURI && browser.currentURI.spec === 'about:addons' ) {
this.observe(browser.contentDocument, 'addon-enabled', this.addonId);
}
},
unregister: function() {
Services.obs.removeObserver(this, 'addon-options-displayed');
},
setupOptionsButton: function(doc, id, page) {
var button = doc.getElementById(id);
if ( button === null ) {
return;
}
button.addEventListener('command', function() {
vAPI.tabs.open({ url: page, index: -1 });
});
button.label = vAPI.i18n(id);
},
observe: function(doc, topic, addonId) {
if ( addonId !== this.addonId ) {
return;
}
this.setupOptionsButton(doc, 'showDashboardButton', 'dashboard.html');
this.setupOptionsButton(doc, 'showNetworkLogButton', 'logger-ui.html');
}
};
optionsObserver.register();
/******************************************************************************/
/******************************************************************************/
vAPI.lastError = function() {
return null;
};
/******************************************************************************/
// 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() {
var µb = µBlock;
var tabId;
for ( var browser of tabWatcher.browsers() ) {
tabId = tabWatcher.tabIdFromTarget(browser);
µb.tabContextManager.commit(tabId, browser.currentURI.asciiSpec);
µb.bindTabToPageStats(tabId);
browser.messageManager.sendAsyncMessage(
location.host + '-load-completed'
);
}
};
/******************************************************************************/
/******************************************************************************/
// Likelihood is that we do not have to punycode: given punycode overhead,
// it's faster to check and skip than do it unconditionally all the time.
var punycodeHostname = punycode.toASCII;
var isNotASCII = /[^\x21-\x7F]/;
vAPI.punycodeHostname = function(hostname) {
return isNotASCII.test(hostname) ? punycodeHostname(hostname) : hostname;
};
vAPI.punycodeURL = function(url) {
if ( isNotASCII.test(url) ) {
return Services.io.newURI(url, null, null).asciiSpec;
}
return url;
};
/******************************************************************************/
/******************************************************************************/
vAPI.cloud = (function() {
var extensionBranchPath = 'extensions.' + location.host;
var cloudBranchPath = extensionBranchPath + '.cloudStorage';
// https://github.com/gorhill/uBlock/issues/80#issuecomment-132081658
// We must use get/setComplexValue in order to properly handle strings
// with unicode characters.
var iss = Ci.nsISupportsString;
var argstr = Components.classes['@mozilla.org/supports-string;1']
.createInstance(iss);
var options = {
defaultDeviceName: '',
deviceName: ''
};
// User-supplied device name.
try {
options.deviceName = Services.prefs
.getBranch(extensionBranchPath + '.')
.getComplexValue('deviceName', iss)
.data;
} catch(ex) {
}
var getDefaultDeviceName = function() {
var name = '';
try {
name = Services.prefs
.getBranch('services.sync.client.')
.getComplexValue('name', iss)
.data;
} catch(ex) {
}
return name || window.navigator.platform || window.navigator.oscpu;
};
var start = function(dataKeys) {
var extensionBranch = Services.prefs.getBranch(extensionBranchPath + '.');
var syncBranch = Services.prefs.getBranch('services.sync.prefs.sync.');
// Mark config entries as syncable
argstr.data = '';
var dataKey;
for ( var i = 0; i < dataKeys.length; i++ ) {
dataKey = dataKeys[i];
if ( extensionBranch.prefHasUserValue('cloudStorage.' + dataKey) === false ) {
extensionBranch.setComplexValue('cloudStorage.' + dataKey, iss, argstr);
}
syncBranch.setBoolPref(cloudBranchPath + '.' + dataKey, true);
}
};
var push = function(datakey, data, callback) {
var branch = Services.prefs.getBranch(cloudBranchPath + '.');
var bin = {
'source': options.deviceName || getDefaultDeviceName(),
'tstamp': Date.now(),
'data': data,
'size': 0
};
bin.size = JSON.stringify(bin).length;
argstr.data = JSON.stringify(bin);
branch.setComplexValue(datakey, iss, argstr);
if ( typeof callback === 'function' ) {
callback();
}
};
var pull = function(datakey, callback) {
var result = null;
var branch = Services.prefs.getBranch(cloudBranchPath + '.');
try {
var json = branch.getComplexValue(datakey, iss).data;
if ( typeof json === 'string' ) {
result = JSON.parse(json);
}
} catch(ex) {
}
callback(result);
};
var getOptions = function(callback) {
if ( typeof callback !== 'function' ) {
return;
}
options.defaultDeviceName = getDefaultDeviceName();
callback(options);
};
var setOptions = function(details, callback) {
if ( typeof details !== 'object' || details === null ) {
return;
}
var branch = Services.prefs.getBranch(extensionBranchPath + '.');
if ( typeof details.deviceName === 'string' ) {
argstr.data = details.deviceName;
branch.setComplexValue('deviceName', iss, argstr);
options.deviceName = details.deviceName;
}
getOptions(callback);
};
return {
start: start,
push: push,
pull: pull,
getOptions: getOptions,
setOptions: setOptions
};
})();
/******************************************************************************/
/******************************************************************************/
})();
/******************************************************************************/
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