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mirror of https://github.com/gorhill/uBlock.git synced 2024-11-16 23:42:39 +01:00
uBlock/platform/firefox/vapi-background.js
Chris 801e6d706f Change back to 'Block Element' until later (details:...)
until we have a more general 'element picker' equivalent that can
block resources. So having this exposed in the request logger would
be basically useless (since the only type of stuff that one would
want to block using the request logger are probably things that
aren't visible DOM elements)
2015-05-14 17:04:55 -06:00

2230 lines
69 KiB
JavaScript

/*******************************************************************************
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/chrisaljoudi/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.app = {
name: 'uBlock',
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 = vAPI.fennec ? 7 : 9; // several instances of cleanupTasks.push, but one is unique to fennec, and three to desktop.
window.addEventListener('unload', function() {
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 frameModule = {};
Cu.import(vAPI.getURL('frameModule.js'), frameModule);
frameModule.contentObserver.unregister();
Cu.unload(vAPI.getURL('frameModule.js'));
});
/******************************************************************************/
var SQLite = {
open: function() {
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');
this.db = Services.storage.openDatabase(path);
this.db.executeSimpleSQL(
'CREATE TABLE IF NOT EXISTS settings' +
'(name TEXT PRIMARY KEY NOT NULL, value TEXT);'
);
cleanupTasks.push(function() {
// VACUUM somewhere else, instead on unload?
SQLite.run('VACUUM');
SQLite.db.asyncClose();
});
},
run: function(query, values, callback) {
if ( !this.db ) {
this.open();
}
var result = {};
query = this.db.createAsyncStatement(query);
if ( Array.isArray(values) && values.length ) {
var i = values.length;
while ( i-- ) {
query.bindByIndex(i, values[i]);
}
}
query.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);
}
});
}
};
/******************************************************************************/
vAPI.storage = {
QUOTA_BYTES: 100 * 1024 * 1024,
sqlWhere: function(col, params) {
if ( params > 0 ) {
params = new Array(params + 1).join('?, ').slice(0, -2);
return ' WHERE ' + col + ' IN (' + params + ')';
}
return '';
},
get: function(details, callback) {
if ( typeof callback !== 'function' ) {
return;
}
var values = [], defaults = false;
if ( details !== null ) {
if ( Array.isArray(details) ) {
values = details;
} else if ( typeof details === 'object' ) {
defaults = true;
values = Object.keys(details);
} else {
values = [details.toString()];
}
}
SQLite.run(
'SELECT * FROM settings' + this.sqlWhere('name', values.length),
values,
function(result) {
var key;
for ( key in result ) {
result[key] = JSON.parse(result[key]);
}
if ( defaults ) {
for ( key in details ) {
if ( result[key] === undefined ) {
result[key] = details[key];
}
}
}
callback(result);
}
);
},
set: function(details, callback) {
var key, values = [], placeholders = [];
for ( key in details ) {
if ( !details.hasOwnProperty(key) ) {
continue;
}
values.push(key);
values.push(JSON.stringify(details[key]));
placeholders.push('?, ?');
}
if ( !values.length ) {
return;
}
SQLite.run(
'INSERT OR REPLACE INTO settings (name, value) SELECT ' +
placeholders.join(' UNION SELECT '),
values,
callback
);
},
remove: function(keys, callback) {
if ( typeof keys === 'string' ) {
keys = [keys];
}
SQLite.run(
'DELETE FROM settings' + this.sqlWhere('name', keys.length),
keys,
callback
);
},
clear: function(callback) {
SQLite.run('DELETE FROM settings');
SQLite.run('VACUUM', null, callback);
},
getBytesInUse: function(keys, callback) {
if ( typeof callback !== 'function' ) {
return;
}
SQLite.run(
'SELECT "size" AS size, SUM(LENGTH(value)) FROM settings' +
this.sqlWhere('name', Array.isArray(keys) ? keys.length : 0),
keys,
function(result) {
callback(result.size);
}
);
}
};
vAPI.storage.preferences = vAPI.storage;
/******************************************************************************/
var windowWatcher = {
onReady: function(e) {
if ( e ) {
this.removeEventListener(e.type, windowWatcher.onReady);
}
var wintype = this.document.documentElement.getAttribute('windowtype');
if ( wintype !== 'navigator:browser' ) {
return;
}
var attachToTabBrowser = function(window, tabBrowser) {
if (!tabBrowser) {
return;
}
var tabContainer;
if ( tabBrowser.deck ) {
// Fennec
tabContainer = tabBrowser.deck;
} else if ( tabBrowser.tabContainer ) {
// desktop Firefox
tabContainer = tabBrowser.tabContainer;
vAPI.contextMenu.register(window.document);
if (vAPI.toolbarButton.attachToNewWindow) {
vAPI.toolbarButton.attachToNewWindow(window);
}
} else {
return;
}
tabContainer.addEventListener('TabClose', tabWatcher.onTabClose);
tabContainer.addEventListener('TabSelect', tabWatcher.onTabSelect);
// when new window is opened TabSelect doesn't run on the selected tab?
}
var win = this;
var tabBrowser = getTabBrowser(win);
if ( !tabBrowser ) {
// On some platforms, the tab browser isn't immediately available, try waiting a bit
win.setTimeout(function() {
attachToTabBrowser(win, getTabBrowser(win));
}, 250);
} else {
attachToTabBrowser(win, tabBrowser);
}
},
observe: function(win, topic) {
if ( topic === 'domwindowopened' ) {
win.addEventListener('DOMContentLoaded', this.onReady);
}
}
};
/******************************************************************************/
var tabWatcher = {
onTabClose: function({target}) {
// target is tab in Firefox, browser in Fennec
var tabId = vAPI.tabs.getTabId(target);
vAPI.tabs.onClosed(tabId);
delete vAPI.toolbarButton.tabs[tabId];
},
onTabSelect: function({target}) {
vAPI.setIcon(vAPI.tabs.getTabId(target), getOwnerWindow(target));
},
};
/******************************************************************************/
vAPI.isBehindTheSceneTabId = function(tabId) {
return tabId.toString() === '-1';
};
vAPI.noTabId = '-1';
/******************************************************************************/
var getTabBrowser = function(win) {
return vAPI.fennec && win.BrowserApp || win.gBrowser || null;
};
/******************************************************************************/
var getBrowserForTab = function(tab) {
if ( !tab ) {
return null;
}
return vAPI.fennec && tab.browser || tab.linkedBrowser || 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.tabs = {};
/******************************************************************************/
vAPI.tabs.registerListeners = function() {
// onClosed - handled in tabWatcher.onTabClose
// onPopup - handled in httpObserver.handlePopup
for ( var win of this.getWindows() ) {
windowWatcher.onReady.call(win);
}
Services.ww.registerNotification(windowWatcher);
cleanupTasks.push(function() {
Services.ww.unregisterNotification(windowWatcher);
vAPI.contextMenu.remove();
for ( var win of vAPI.tabs.getWindows() ) {
win.removeEventListener('DOMContentLoaded', windowWatcher.onReady);
var tabContainer;
var tabBrowser = getTabBrowser(win);
if ( !tabBrowser ) {
continue;
}
if ( tabBrowser.deck ) {
// Fennec
tabContainer = tabBrowser.deck;
} else if ( tabBrowser.tabContainer ) {
tabContainer = tabBrowser.tabContainer;
}
tabContainer.removeEventListener('TabClose', tabWatcher.onTabClose);
tabContainer.removeEventListener('TabSelect', tabWatcher.onTabSelect);
// Close extension tabs
for ( var tab of tabBrowser.tabs ) {
var browser = getBrowserForTab(tab);
if ( browser === null ) {
continue;
}
var URI = browser.currentURI;
if ( URI.schemeIs('chrome') && URI.host === location.host ) {
vAPI.tabs._remove(tab, getTabBrowser(win));
}
}
}
});
};
/******************************************************************************/
vAPI.tabs.stack = new WeakMap();
vAPI.tabs.stackId = 1;
/******************************************************************************/
vAPI.tabs.getTabId = function(target) {
if ( !target ) {
return vAPI.noTabId;
}
if ( vAPI.fennec ) {
if ( target.browser ) {
// target is a tab
target = target.browser;
}
} else if ( target.linkedPanel ) {
// target is a tab
target = target.linkedBrowser;
}
if ( target.localName !== 'browser' ) {
return vAPI.noTabId;
}
var tabId = this.stack.get(target);
if ( !tabId ) {
tabId = '' + this.stackId++;
this.stack.set(target, tabId);
}
return tabId;
};
/******************************************************************************/
// If tabIds is an array, then an array of tabs will be returned,
// otherwise a single tab
vAPI.tabs.getTabsForIds = function(tabIds) {
var tabs = [];
var singleTab = !Array.isArray(tabIds);
if ( singleTab ) {
tabIds = [tabIds];
}
for ( var tab of this.getAll() ) {
var tabId = this.stack.get(getBrowserForTab(tab));
if ( !tabId ) {
continue;
}
if ( tabIds.indexOf(tabId) !== -1 ) {
tabs.push(tab);
}
if ( tabs.length >= tabIds.length ) {
break;
}
}
return singleTab ? tabs[0] || null : tabs;
};
/******************************************************************************/
vAPI.tabs.get = function(tabId, callback) {
var tab, win;
if ( tabId === null ) {
win = Services.wm.getMostRecentWindow('navigator:browser');
var tabBrowser = getTabBrowser(win);
if (tabBrowser) {
tab = tabBrowser.selectedTab;
tabId = this.getTabId(tab);
}
} else {
tab = this.getTabsForIds(tabId);
if ( tab ) {
win = getOwnerWindow(tab);
}
}
// For internal use
if ( typeof callback !== 'function' ) {
return tab;
}
if ( !tab ) {
callback();
return;
}
var windows = this.getWindows();
var browser = getBrowserForTab(tab);
var tabBrowser = getTabBrowser(win);
var tabIndex, tabTitle;
if ( vAPI.fennec ) {
tabIndex = tabBrowser.tabs.indexOf(tab);
tabTitle = browser.contentTitle;
} else {
tabIndex = tabBrowser.browsers.indexOf(browser);
tabTitle = tab.label;
}
callback({
id: tabId,
index: tabIndex,
windowId: windows.indexOf(win),
active: tab === tabBrowser.selectedTab,
url: browser.currentURI.asciiSpec,
title: tabTitle
});
};
/******************************************************************************/
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('navigator:browser');
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 win, tab, tabBrowser;
if ( details.select ) {
var URI = Services.io.newURI(details.url, null, null);
for ( tab of this.getAll() ) {
var browser = getBrowserForTab(tab);
// Or simply .equals if we care about the fragment
if ( URI.equalsExceptRef(browser.currentURI) === false ) {
continue;
}
this.select(tab);
return;
}
}
if ( details.active === undefined ) {
details.active = true;
}
if ( details.tabId ) {
tab = this.getTabsForIds(details.tabId);
if ( tab ) {
getBrowserForTab(tab).loadURI(details.url);
return;
}
}
win = Services.wm.getMostRecentWindow('navigator:browser');
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;
}
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 tab = this.getTabsForIds(tabId);
if ( tab ) {
getBrowserForTab(tab).loadURI(targetURL);
}
};
/******************************************************************************/
vAPI.tabs._remove = function(tab, tabBrowser) {
if ( vAPI.fennec ) {
tabBrowser.closeTab(tab);
return;
}
tabBrowser.removeTab(tab);
};
/******************************************************************************/
vAPI.tabs.remove = function(tabIds) {
if ( !Array.isArray(tabIds) ) {
tabIds = [tabIds];
}
var tabs = this.getTabsForIds(tabIds);
if ( tabs.length === 0 ) {
return;
}
for ( var tab of tabs ) {
this._remove(tab, getTabBrowser(getOwnerWindow(tab)));
}
};
/******************************************************************************/
vAPI.tabs.reload = function(tabId) {
var tab = this.get(tabId);
if ( !tab ) {
return;
}
getBrowserForTab(tab).webNavigation.reload(
Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE
);
};
/******************************************************************************/
vAPI.tabs.select = function(tab) {
tab = typeof tab === 'object' ? tab : this.get(tab);
if ( !tab ) {
return;
}
var tabBrowser = getTabBrowser(getOwnerWindow(tab));
if ( vAPI.fennec ) {
tabBrowser.selectTab(tab);
} else {
tabBrowser.selectedTab = tab;
}
};
/******************************************************************************/
vAPI.tabs.injectScript = function(tabId, details, callback) {
var tab = this.get(tabId);
if ( !tab ) {
return;
}
if ( typeof details.file !== 'string' ) {
return;
}
details.file = vAPI.getURL(details.file);
getBrowserForTab(tab).messageManager.sendAsyncMessage(
location.host + ':broadcast',
JSON.stringify({
broadcast: true,
channelName: 'vAPI',
msg: {
cmd: 'injectScript',
details: details
}
})
);
if ( typeof callback === 'function' ) {
setTimeout(callback, 13);
}
};
/******************************************************************************/
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('navigator:browser');
var curTabId = vAPI.tabs.getTabId(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);
},
frameScript: 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({target, data}) {
var messageManager = target.messageManager;
if ( !messageManager ) {
// Message came from a popup, and its message manager is not usable.
// So instead we broadcast to the parent window.
messageManager = getOwnerWindow(
target.webNavigation.QueryInterface(Ci.nsIDocShell).chromeEventHandler
).messageManager;
}
var channelNameRaw = data.channelName;
var pos = channelNameRaw.indexOf('|');
var channelName = channelNameRaw.slice(pos + 1);
var callback = vAPI.messaging.NOOPFUNC;
if ( data.requestId !== undefined ) {
callback = CallbackWrapper.factory(
messageManager,
channelName,
channelNameRaw.slice(0, pos),
data.requestId
).callback;
}
var sender = {
tab: {
id: vAPI.tabs.getTabId(target)
}
};
// Specific handler
var r = vAPI.messaging.UNHANDLED;
var listener = vAPI.messaging.listeners[channelName];
if ( typeof listener === 'function' ) {
r = listener(data.msg, sender, callback);
}
if ( r !== vAPI.messaging.UNHANDLED ) {
return;
}
// Default handler
r = vAPI.messaging.defaultHandler(data.msg, sender, callback);
if ( r !== vAPI.messaging.UNHANDLED ) {
return;
}
console.error('uBlock> messaging > unknown request: %o', data);
// Unhandled:
// 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.frameScript, true);
cleanupTasks.push(function() {
var gmm = vAPI.messaging.globalMessageManager;
gmm.removeDelayedFrameScript(vAPI.messaging.frameScript);
gmm.removeMessageListener(
location.host + ':background',
vAPI.messaging.onMessage
);
});
};
/******************************************************************************/
vAPI.messaging.broadcast = function(message) {
this.globalMessageManager.broadcastAsyncMessage(
location.host + ':broadcast',
JSON.stringify({broadcast: true, msg: message})
);
};
/******************************************************************************/
// This allows to avoid creating a closure for every single message which
// expects an answer. Having a closure created each time a message is processed
// has been always bothering me. Another benefit of the implementation here
// is to reuse the callback proxy object, so less memory churning.
//
// https://developers.google.com/speed/articles/optimizing-javascript
// "Creating a closure is significantly slower then creating an inner
// function without a closure, and much slower than reusing a static
// function"
//
// http://hacksoflife.blogspot.ca/2015/01/the-four-horsemen-of-performance.html
// "the dreaded 'uniformly slow code' case where every function takes 1%
// of CPU and you have to make one hundred separate performance optimizations
// to improve performance at all"
//
// http://jsperf.com/closure-no-closure/2
var CallbackWrapper = function(messageManager, channelName, listenerId, requestId) {
this.callback = this.proxy.bind(this); // bind once
this.init(messageManager, channelName, listenerId, requestId);
};
CallbackWrapper.junkyard = [];
CallbackWrapper.factory = function(messageManager, channelName, listenerId, requestId) {
var wrapper = CallbackWrapper.junkyard.pop();
if ( wrapper ) {
wrapper.init(messageManager, channelName, listenerId, requestId);
return wrapper;
}
return new CallbackWrapper(messageManager, channelName, listenerId, requestId);
};
CallbackWrapper.prototype.init = function(messageManager, channelName, listenerId, requestId) {
this.messageManager = messageManager;
this.channelName = channelName;
this.listenerId = listenerId;
this.requestId = requestId;
};
CallbackWrapper.prototype.proxy = function(response) {
var message = JSON.stringify({
requestId: this.requestId,
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.channelName =
this.requestId =
this.listenerId = null;
CallbackWrapper.junkyard.push(this);
};
/******************************************************************************/
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',
11: 'xmlhttprequest',
12: 'object',
14: 'font',
21: 'image'
},
lastRequest: [{}, {}],
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() {
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
);
},
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.type] || 'other';
if ( 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;
}
/*if ( result.redirectUrl ) {
channel.redirectionLimit = 1;
channel.redirectTo(
Services.io.newURI(result.redirectUrl, null, null)
);
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],
url: URI.asciiSpec
});
if ( result ) {
channel.setResponseHeader(
topic,
result.responseHeaders.pop().value,
true
);
}
return;
}
// http-on-opening-request
var lastRequest = this.lastRequest[0];
if ( lastRequest.url !== URI.spec ) {
if ( this.lastRequest[1].url === URI.spec ) {
lastRequest = this.lastRequest[1];
} else {
lastRequest.url = null;
}
}
if ( lastRequest.url === null ) {
lastRequest.type = channel.loadInfo && channel.loadInfo.contentPolicyType || 1;
result = this.handleRequest(channel, URI, {
tabId: vAPI.noTabId,
type: lastRequest.type
});
if ( result === true ) {
return;
}
if ( channel instanceof Ci.nsIWritablePropertyBag === false ) {
return;
}
// Carry data for behind-the-scene redirects
channel.setProperty(
this.REQDATAKEY,
[lastRequest.type, vAPI.noTabId, null, 0, -1]
);
return;
}
// Important! When loading file via XHR for mirroring,
// the URL will be the same, so it could fall into an infinite loop
lastRequest.url = null;
if ( this.handleRequest(channel, URI, lastRequest) ) {
return;
}
// If request is not handled we may use the data in on-modify-request
if ( channel instanceof Ci.nsIWritablePropertyBag ) {
channel.setProperty(this.REQDATAKEY, [
lastRequest.frameId,
lastRequest.parentFrameId,
lastRequest.sourceTabId,
lastRequest.tabId,
lastRequest.type
]);
}
},
// 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],
type: 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 = new Set(this.onBeforeRequest.types);
var shouldLoadListenerMessageName = location.host + ':shouldLoad';
var shouldLoadListener = function(e) {
var details = e.data;
var tabId = vAPI.tabs.getTabId(e.target);
var sourceTabId = null;
// Popup candidate
if ( details.openerURL ) {
for ( var tab of vAPI.tabs.getAll() ) {
var URI = getBrowserForTab(tab).currentURI;
// Probably isn't the best method to identify the source tab
if ( URI.spec !== details.openerURL ) {
continue;
}
sourceTabId = vAPI.tabs.getTabId(tab);
if ( sourceTabId === tabId ) {
sourceTabId = null;
continue;
}
URI = Services.io.newURI(details.url, null, null);
if ( httpObserver.handlePopup(URI, tabId, sourceTabId) ) {
return;
}
break;
}
}
var lastRequest = httpObserver.lastRequest;
lastRequest[1] = lastRequest[0];
lastRequest[0] = {
frameId: details.frameId,
parentFrameId: details.parentFrameId,
sourceTabId: sourceTabId,
tabId: tabId,
type: details.type,
url: details.url
};
};
vAPI.messaging.globalMessageManager.addMessageListener(
shouldLoadListenerMessageName,
shouldLoadListener
);
var locationChangedListenerMessageName = location.host + ':locationChanged';
var locationChangedListener = function(e) {
var details = e.data;
var browser = e.target;
if (details.noRefresh && details.url === browser.currentURI.asciiSpec) { // If the location changed message specified not to refresh, and the URL is the same, no need to do anything
//console.debug("nsIWebProgressListener: ignoring onLocationChange: " + details.url);
return;
}
var tabId = vAPI.tabs.getTabId(browser);
if (tabId === vAPI.noTabId) {
return; // Do not navigate for behind the scenes
}
//console.debug("nsIWebProgressListener: onLocationChange: " + details.url + " (" + details.flags + ")");
// 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}*/}
};
/******************************************************************************/
// Toolbar button UI for desktop Firefox
vAPI.toolbarButton.init = function() {
if ( vAPI.fennec ) {
// Menu UI for Fennec
var tb = {
menuItemIds: new WeakMap(),
label: vAPI.app.name,
tabs: {}
};
vAPI.toolbarButton = tb;
tb.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;
};
tb.onClick = function() {
var win = Services.wm.getMostRecentWindow('navigator:browser');
var curTabId = vAPI.tabs.getTabId(getTabBrowser(win).selectedTab);
vAPI.tabs.open({
url: 'popup.html?tabId=' + curTabId,
index: -1,
select: true
});
};
tb.updateState = function(win, tabId) {
var id = this.menuItemIds.get(win);
if ( !id ) {
return;
}
win.NativeWindow.menu.update(id, {
name: this.getMenuItemLabel(tabId)
});
};
// Only actually expecting one window under Fennec (note, not tabs, windows)
for ( var win of vAPI.tabs.getWindows() ) {
var label = tb.getMenuItemLabel();
var id = win.NativeWindow.menu.add({
name: label,
callback: tb.onClick
});
tb.menuItemIds.set(win, id);
}
cleanupTasks.push(function() {
for ( var win of vAPI.tabs.getWindows() ) {
var id = tb.menuItemIds.get(win);
if ( id ) {
win.NativeWindow.menu.remove(id);
tb.menuItemIds.delete(win);
}
}
});
return;
}
vAPI.messaging.globalMessageManager.addMessageListener(
location.host + ':closePopup',
vAPI.toolbarButton.onPopupCloseRequested
);
cleanupTasks.push(function() {
vAPI.messaging.globalMessageManager.removeMessageListener(
location.host + ':closePopup',
vAPI.toolbarButton.onPopupCloseRequested
);
});
var CustomizableUI;
var forceLegacyToolbarButton = vAPI.localStorage.getBool("forceLegacyToolbarButton");
if (!forceLegacyToolbarButton) {
try {
CustomizableUI = Cu.import('resource:///modules/CustomizableUI.jsm', null).CustomizableUI;
} catch (ex) {
}
}
if (!CustomizableUI) {
// Create a fallback non-customizable UI button
var sss = Cc["@mozilla.org/content/style-sheet-service;1"].getService(Ci.nsIStyleSheetService);
var styleSheetUri = Services.io.newURI(vAPI.getURL("css/legacy-toolbar-button.css"), null, null);
var legacyButtonId = "uBlock-legacy-button"; // NOTE: must match legacy-toolbar-button.css
this.id = legacyButtonId;
this.viewId = legacyButtonId + "-panel";
if (!sss.sheetRegistered(styleSheetUri, sss.AUTHOR_SHEET)) {
sss.loadAndRegisterSheet(styleSheetUri, sss.AUTHOR_SHEET); // Register global so it works in all windows, including palette
}
var addLegacyToolbarButton = function(window) {
var document = window.document;
var toolbox = document.getElementById('navigator-toolbox') || document.getElementById('mail-toolbox');
if (toolbox) {
var palette = toolbox.palette;
if (!palette) {
// palette might take a little longer to appear on some platforms, give it a small delay and try again
window.setTimeout(function() {
if (toolbox.palette) {
addLegacyToolbarButton(window);
}
}, 250);
return;
}
var toolbarButton = document.createElement('toolbarbutton');
toolbarButton.setAttribute('id', legacyButtonId);
toolbarButton.setAttribute('type', 'menu'); // type = panel would be more accurate, but doesn't look as good
toolbarButton.setAttribute('removable', 'true');
toolbarButton.setAttribute('class', 'toolbarbutton-1 chromeclass-toolbar-additional');
toolbarButton.setAttribute('label', vAPI.toolbarButton.label);
var toolbarButtonPanel = document.createElement("panel");
// toolbarButtonPanel.setAttribute('level', 'parent'); NOTE: Setting level to parent breaks the popup for PaleMoon under linux (mouse pointer misaligned with content). For some reason.
vAPI.toolbarButton.populatePanel(document, toolbarButtonPanel);
toolbarButtonPanel.addEventListener('popupshowing', vAPI.toolbarButton.onViewShowing);
toolbarButtonPanel.addEventListener('popuphiding', vAPI.toolbarButton.onViewHiding);
toolbarButton.appendChild(toolbarButtonPanel);
palette.appendChild(toolbarButton);
vAPI.toolbarButton.closePopup = function() {
toolbarButtonPanel.hidePopup();
}
if (!vAPI.localStorage.getBool('legacyToolbarButtonAdded')) {
// 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 = !forceLegacyToolbarButton && document.getElementById('nav-bar');
if (toolbar) {
toolbar.appendChild(toolbarButton);
toolbar.setAttribute('currentset', toolbar.currentSet);
document.persist(toolbar.id, 'currentset');
}
vAPI.localStorage.setBool('legacyToolbarButtonAdded', 'true');
} else {
// 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 (var toolbar of toolbars) {
var currentsetString = toolbar.getAttribute('currentset');
if (currentsetString) {
var currentset = currentsetString.split(',');
var index = currentset.indexOf(legacyButtonId);
if (index >= 0) {
// 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) {
toolbar.insertItem(legacyButtonId, before);
break;
}
}
if (!before) {
toolbar.insertItem(legacyButtonId);
}
}
}
}
}
}
}
vAPI.toolbarButton.attachToNewWindow = function(win) {
addLegacyToolbarButton(win);
}
cleanupTasks.push(function() {
for ( var win of vAPI.tabs.getWindows() ) {
var toolbarButton = win.document.getElementById(legacyButtonId);
if (toolbarButton) {
toolbarButton.parentNode.removeChild(toolbarButton);
}
}
if (sss.sheetRegistered(styleSheetUri, sss.AUTHOR_SHEET)) {
sss.unregisterSheet(styleSheetUri, sss.AUTHOR_SHEET);
}
}.bind(this));
return;
}
this.CustomizableUI = CustomizableUI;
this.defaultArea = CustomizableUI.AREA_NAVBAR;
this.styleURI = [
'#' + 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 + ' {',
'width: 160px;',
'height: 290px;',
'overflow: hidden !important;',
'}'
];
var platformVersion = Services.appinfo.platformVersion;
if ( Services.vc.compare(platformVersion, '36.0') < 0 ) {
this.styleURI.push(
'#' + 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);',
'}'
);
} else {
this.CUIEvents = {};
var updateBadge = function() {
var wId = vAPI.toolbarButton.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 ( buttonInPanel ) {
button.classList.remove('badged-button');
continue;
}
if ( button === null ) {
continue;
}
button.classList.add('badged-button');
}
if ( buttonInPanel ) {
return;
}
// Anonymous elements need some time to be reachable
setTimeout(this.updateBadgeStyle, 250);
}.bind(this.CUIEvents);
this.CUIEvents.onCustomizeEnd = updateBadge;
this.CUIEvents.onWidgetUnderflow = updateBadge;
this.CUIEvents.updateBadgeStyle = function() {
var css = [
'background: #666',
'color: #fff'
].join(';');
for ( var win of vAPI.tabs.getWindows() ) {
var button = win.document.getElementById(vAPI.toolbarButton.id);
if ( button === null ) {
continue;
}
var badge = button.ownerDocument.getAnonymousElementByAttribute(
button,
'class',
'toolbarbutton-badge'
);
if ( !badge ) {
return;
}
badge.style.cssText = css;
}
};
this.onCreated = function(button) {
button.setAttribute('badge', '');
setTimeout(updateBadge, 250);
};
CustomizableUI.addListener(this.CUIEvents);
}
this.styleURI = Services.io.newURI(
'data:text/css,' + encodeURIComponent(this.styleURI.join('')),
null,
null
);
this.closePopup = function(tabBrowser) {
CustomizableUI.hidePanelForNode(
tabBrowser.ownerDocument.getElementById(vAPI.toolbarButton.viewId)
);
};
CustomizableUI.createWidget(this);
cleanupTasks.push(function() {
if ( this.CUIEvents ) {
CustomizableUI.removeListener(this.CUIEvents);
}
CustomizableUI.destroyWidget(this.id);
for ( var win of vAPI.tabs.getWindows() ) {
var panel = win.document.getElementById(this.viewId);
panel.parentNode.removeChild(panel);
win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.removeSheet(this.styleURI, 1);
}
}.bind(this));
this.init = null;
};
/******************************************************************************/
vAPI.toolbarButton.onPopupCloseRequested = function({target}) {
if (vAPI.toolbarButton.closePopup) {
vAPI.toolbarButton.closePopup(target);
}
}
/******************************************************************************/
vAPI.toolbarButton.onBeforeCreated = function(doc) {
var panel = doc.createElement('panelview');
vAPI.toolbarButton.populatePanel(doc, panel);
doc.getElementById('PanelUI-multiView').appendChild(panel);
doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils)
.loadSheet(this.styleURI, 1);
};
vAPI.toolbarButton.populatePanel = function(doc, panel) {
panel.setAttribute('id', this.viewId);
var iframe = doc.createElement('iframe');
iframe.setAttribute('type', 'content');
panel.appendChild(iframe);
var updateTimer = null;
var delayedResize = function(attempts) {
if ( updateTimer ) {
return;
}
// Sanity check
attempts = (attempts || 0) + 1;
if (attempts > 1000) {
console.error('uBlock> delayedResize: giving up after too many attemps');
return;
}
updateTimer = setTimeout(resizePopup, 10, attempts);
};
var resizePopup = function(attempts) {
updateTimer = null;
var body = iframe.contentDocument.body;
panel.parentNode.style.maxWidth = 'none';
// https://github.com/chrisaljoudi/uBlock/issues/730
// Voodoo programming: this recipe works
var toPixelString = pixels => pixels.toString() + 'px';
var clientHeight = body.clientHeight;
iframe.style.height = toPixelString(clientHeight);
panel.style.height = toPixelString(clientHeight + (panel.boxObject.height - panel.clientHeight));
var clientWidth = body.clientWidth;
iframe.style.width = toPixelString(clientWidth);
panel.style.width = toPixelString(clientWidth + (panel.boxObject.width - panel.clientWidth));
if ( iframe.clientHeight !== body.clientHeight || iframe.clientWidth !== body.clientWidth ) {
delayedResize(attempts);
}
};
var CustomizableUI = this.CustomizableUI;
var widgetId = this.id;
var onPopupReady = function() {
var win = this.contentWindow;
if ( !win || win.location.host !== location.host ) {
return;
}
if (CustomizableUI) {
var placement = CustomizableUI.getPlacementOfWidget(widgetId);
if (placement.area === CustomizableUI.AREA_PANEL) {
// Add some overrides for displaying the popup correctly in a panel
win.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils)
.loadSheet(Services.io.newURI(vAPI.getURL("css/popup-vertical.css"), null, null), Ci.nsIDOMWindowUtils.AUTHOR_SHEET);
}
}
new win.MutationObserver(delayedResize).observe(win.document.body, {
attributes: true,
characterData: true,
subtree: true
});
delayedResize();
};
iframe.addEventListener('load', onPopupReady, true);
};
/******************************************************************************/
vAPI.toolbarButton.onViewShowing = function({target}) {
target.firstChild.setAttribute('src', vAPI.getURL('popup.html'));
};
/******************************************************************************/
vAPI.toolbarButton.onViewHiding = function({target}) {
target.parentNode.style.maxWidth = '';
target.firstChild.setAttribute('src', 'about:blank');
};
/******************************************************************************/
vAPI.toolbarButton.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 || '');
if ( !icon || !icon.img ) {
button.classList.add('off');
}
else {
button.classList.remove('off');
}
};
/******************************************************************************/
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 ( gContextMenu[ctxMap[context]] ) {
menuitem.hidden = false;
return;
}
}
menuitem.hidden = true;
};
/******************************************************************************/
vAPI.contextMenu.createContextMenuItem = function(doc) {
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');
return menuitem;
}
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;
}
if (doc.getElementById(this.menuItemId)) {
// Context menu already registered for this window
return;
}
var contextMenu = doc.getElementById('contentAreaContextMenu');
if (contextMenu) {
var menuitem = this.createContextMenuItem(doc);
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);
var contextMenu = menuitem.parentNode;
menuitem.removeEventListener('command', this.onCommand);
contextMenu.removeEventListener('popupshowing', this.displayMenuItem);
contextMenu.removeChild(menuitem);
};
/******************************************************************************/
vAPI.contextMenu.registerForWebInspector = function(eventName, toolbox, panel) {
var menuPopup = panel.panelDoc.getElementById("inspector-node-popup");
var deleteMenuItem = panel.panelDoc.getElementById("node-menu-delete");
var tiltButton = toolbox.toolboxButtons.filter(tool => tool.id === "command-button-tilt")[0];
tiltButton = tiltButton && tiltButton.button;
if (menuPopup && deleteMenuItem) {
var menuitem = vAPI.contextMenu.createContextMenuItem(panel.panelDoc);
menuitem.addEventListener('command', function() {
var selectedNodeFront = panel.selection.nodeFront;
while (selectedNodeFront && selectedNodeFront.baseURI !== panel.walker.rootNode.baseURI) {
// This is an iFrame, so we can't select it directly. Walk up the parent stack until we do
selectedNodeFront = selectedNodeFront.parentNode();
}
if (selectedNodeFront) {
selectedNodeFront.getUniqueSelector().then(selector => µBlock.elementPickerExec(vAPI.tabs.getTabId(panel.browser), { type: 'element', value: selector}));
// Turn off 3D view, if it's turned on.
if (tiltButton && tiltButton.checked) {
tiltButton.click();
}
}
});
menuPopup.insertBefore(menuitem, deleteMenuItem);
}
}
vAPI.contextMenu.registerForNetMonitor = function(eventName, toolbox, panel) {
var doc = panel.panelWin.document;
var menuPopup = doc.getElementById("network-request-popup");
var insertBeforeMenuItem = doc.getElementById("request-menu-context-separator");
if (menuPopup && insertBeforeMenuItem) {
var menuitem = vAPI.contextMenu.createContextMenuItem(doc);
menuitem.addEventListener('command', function() {
var selectedRequest = panel.panelWin.NetMonitorView.RequestsMenu.selectedAttachment;
if (selectedRequest) {
µBlock.elementPickerExec(vAPI.tabs.getTabId(toolbox.target.tab), { type: 'url', value: selectedRequest.url });
}
});
menuPopup.insertBefore(menuitem, insertBeforeMenuItem);
}
}
/******************************************************************************/
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.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: vAPI.tabs.getTabId(gContextMenu.browser),
url: gContextMenu.browser.currentURI.asciiSpec
});
};
// Also add a context menu to the web inspector
if (!vAPI.fennec) {
try {
this.gDevTools = Cu.import('resource:///modules/devtools/gDevTools.jsm', null).gDevTools;
} catch (ex) {
// console.error(ex);
}
if (this.gDevTools) {
this.gDevTools.on("inspector-ready", this.registerForWebInspector);
this.gDevTools.on("netmonitor-ready", this.registerForNetMonitor);
}
}
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);
}
if (!vAPI.fennec && this.gDevTools) {
this.gDevTools.off("inspector-ready", this.registerForWebInspector);
this.gDevTools.off("netmonitor-ready", this.registerForNetMonitor);
}
this.menuItemId = null;
this.menuLabel = null;
this.contexts = null;
this.onCommand = null;
};
/******************************************************************************/
var optionsObserver = {
addonId: '{2b10c1c8-a11f-4bad-fe9c-1c11e82cac42}',
register: function() {
Services.obs.addObserver(this, 'addon-options-displayed', false);
cleanupTasks.push(this.unregister.bind(this));
var browser = getBrowserForTab(vAPI.tabs.get(null));
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', 'devtools.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;
for ( var tab of this.tabs.getAll() ) {
// We're insterested in only the tabs that were already loaded
if ( !vAPI.fennec && tab.hasAttribute('pending') ) {
continue;
}
var tabId = this.tabs.getTabId(tab);
var browser = getBrowserForTab(tab);
µb.tabContextManager.commit(tabId);
µb.bindTabToPageStats(tabId, browser.currentURI.asciiSpec);
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;
};
/******************************************************************************/
})();
/******************************************************************************/