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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
*/
/* global Services, CustomizableUI */
// For background page
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
Cu['import']('resource://gre/modules/Services.jsm');
Cu['import']('resource:///modules/CustomizableUI.jsm');
/******************************************************************************/
self.vAPI = self.vAPI || {};
vAPI.firefox = true;
/******************************************************************************/
// TODO: read these data from somewhere...
vAPI.app = {
name: 'µBlock',
version: '0.8.2.3'
};
/******************************************************************************/
vAPI.app.restart = function() {
// Observing in bootstrap.js
Services.obs.notifyObservers(null, location.host + '-restart', null);
};
/******************************************************************************/
// List of things that needs to be destroyed when disabling the extension
// Only functions should be added to it
vAPI.unload = [];
/******************************************************************************/
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);'
);
vAPI.unload.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 = 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 ) {
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);
}
);
}
};
/******************************************************************************/
var windowWatcher = {
onTabClose: function(e) {
var tabId = vAPI.tabs.getTabId(e.target);
vAPI.tabs.onClosed(tabId);
delete vAPI.tabIcons[tabId];
},
onTabSelect: function(e) {
vAPI.setIcon(
vAPI.tabs.getTabId(e.target),
e.target.ownerDocument.defaultView
);
},
onReady: function(e) {
if ( e ) {
this.removeEventListener(e.type, windowWatcher.onReady);
}
var wintype = this.document.documentElement.getAttribute('windowtype');
if ( wintype !== 'navigator:browser' ) {
return;
}
if ( !this.gBrowser || !this.gBrowser.tabContainer ) {
return;
}
var tC = this.gBrowser.tabContainer;
this.gBrowser.addTabsProgressListener(tabsProgressListener);
tC.addEventListener('TabClose', windowWatcher.onTabClose);
tC.addEventListener('TabSelect', windowWatcher.onTabSelect);
vAPI.toolbarButton.register(this.document);
vAPI.contextMenu.register(this.document);
// when new window is opened TabSelect doesn't run on the selected tab?
},
observe: function(win, topic) {
if ( topic === 'domwindowopened' ) {
win.addEventListener('DOMContentLoaded', this.onReady);
}
}
};
/******************************************************************************/
var tabsProgressListener = {
onLocationChange: function(browser, webProgress, request, location, flags) {
if ( !webProgress.isTopLevel ) {
return;
}
var tabId = vAPI.tabs.getTabId(browser);
if ( flags & 1 ) {
vAPI.tabs.onUpdated(tabId, {url: location.spec}, {
frameId: 0,
tabId: tabId,
url: browser.currentURI.spec
});
} else {
vAPI.tabs.onNavigation({
frameId: 0,
tabId: tabId,
url: location.spec
});
}
}
};
/******************************************************************************/
vAPI.tabs = {};
/******************************************************************************/
vAPI.tabs.registerListeners = function() {
// onNavigation and onUpdated handled with tabsProgressListener
// onClosed - handled in windowWatcher.onTabClose
// onPopup ?
for ( var win of this.getWindows() ) {
windowWatcher.onReady.call(win);
}
Services.ww.registerNotification(windowWatcher);
vAPI.toolbarButton.init();
vAPI.unload.push(function() {
Services.ww.unregisterNotification(windowWatcher);
for ( var win of vAPI.tabs.getWindows() ) {
vAPI.toolbarButton.unregister(win.document);
vAPI.contextMenu.unregister(win.document);
win.removeEventListener('DOMContentLoaded', windowWatcher.onReady);
win.gBrowser.removeTabsProgressListener(tabsProgressListener);
var tC = win.gBrowser.tabContainer;
tC.removeEventListener('TabClose', windowWatcher.onTabClose);
tC.removeEventListener('TabSelect', windowWatcher.onTabSelect);
// close extension tabs
for ( var tab of win.gBrowser.tabs ) {
var URI = tab.linkedBrowser.currentURI;
if ( URI.scheme === 'chrome' && URI.host === location.host ) {
win.gBrowser.removeTab(tab);
}
}
}
});
};
/******************************************************************************/
vAPI.tabs.getTabId = function(target) {
if ( target.linkedPanel ) {
return target.linkedPanel.slice(6);
}
var i, gBrowser = target.ownerDocument.defaultView.gBrowser;
// This should be more efficient from version 35
if ( gBrowser.getTabForBrowser ) {
i = gBrowser.getTabForBrowser(target);
return i ? i.linkedPanel.slice(6) : -1;
}
i = gBrowser.browsers.indexOf(target);
if ( i !== -1 ) {
i = gBrowser.tabs[i].linkedPanel.slice(6);
}
return i;
};
/******************************************************************************/
vAPI.tabs.get = function(tabId, callback) {
var tab, windows;
if ( tabId === null ) {
tab = Services.wm.getMostRecentWindow('navigator:browser').gBrowser.selectedTab;
tabId = vAPI.tabs.getTabId(tab);
} else {
windows = this.getWindows();
for ( var win of windows ) {
tab = win.gBrowser.tabContainer.querySelector(
'tab[linkedpanel="panel-' + tabId + '"]'
);
if ( tab ) {
break;
}
}
}
// for internal use
if ( tab && typeof callback !== 'function' ) {
return tab;
}
if ( !tab ) {
callback();
return;
}
var browser = tab.linkedBrowser;
var gBrowser = browser.ownerDocument.defaultView.gBrowser;
if ( !windows ) {
windows = this.getWindows();
}
callback({
id: tabId,
index: gBrowser.browsers.indexOf(browser),
windowId: windows.indexOf(browser.ownerDocument.defaultView),
active: tab === gBrowser.selectedTab,
url: browser.currentURI.spec,
title: tab.label
});
};
/******************************************************************************/
vAPI.tabs.getAll = function(window) {
var win, tab, tabs = [];
for ( win of this.getWindows() ) {
if ( window && window !== win ) {
continue;
}
for ( tab of win.gBrowser.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 tab, tabs;
if ( details.select ) {
var rgxHash = /#.*/;
// this is questionable
var url = details.url.replace(rgxHash, '');
tabs = this.getAll();
for ( tab of tabs ) {
var browser = tab.linkedBrowser;
if ( browser.currentURI.spec.replace(rgxHash, '') === url ) {
browser.ownerDocument.defaultView.gBrowser.selectedTab = tab;
return;
}
}
}
if ( details.active === undefined ) {
details.active = true;
}
var gBrowser = Services.wm.getMostRecentWindow('navigator:browser').gBrowser;
if ( details.index === -1 ) {
details.index = gBrowser.browsers.indexOf(gBrowser.selectedBrowser) + 1;
}
if ( details.tabId ) {
tabs = tabs || this.getAll();
for ( tab of tabs ) {
if ( vAPI.tabs.getTabId(tab) === details.tabId ) {
tab.linkedBrowser.loadURI(details.url);
return;
}
}
}
tab = gBrowser.loadOneTab(details.url, {inBackground: !details.active});
if ( details.index !== undefined ) {
gBrowser.moveTabTo(tab, details.index);
}
};
/******************************************************************************/
vAPI.tabs.close = function(tabIds) {
if ( !Array.isArray(tabIds) ) {
tabIds = [tabIds];
}
tabIds = tabIds.map(function(tabId) {
return 'tab[linkedpanel="panel-' + tabId + '"]';
}).join(',');
for ( var win of this.getWindows() ) {
var tabs = win.gBrowser.tabContainer.querySelectorAll(tabIds);
if ( !tabs ) {
continue;
}
for ( var tab of tabs ) {
win.gBrowser.removeTab(tab);
}
}
};
/******************************************************************************/
vAPI.tabs.injectScript = function(tabId, details, callback) {
var tab = vAPI.tabs.get(tabId);
if ( !tab ) {
return;
}
if ( details.file ) {
details.file = vAPI.getURL(details.file);
}
tab.linkedBrowser.messageManager.sendAsyncMessage(
location.host + ':broadcast',
JSON.stringify({
broadcast: true,
channelName: 'vAPI',
msg: {
cmd: 'injectScript',
details: details
}
})
);
if ( typeof callback === 'function' ) {
setTimeout(callback, 13);
}
};
/******************************************************************************/
vAPI.tabIcons = { /*tabId: {badge: 0, img: boolean}*/ };
vAPI.setIcon = function(tabId, iconStatus, badge) {
// If badge is undefined, then setIcon was called from the TabSelect event
var curWin = badge === undefined
? iconStatus
: Services.wm.getMostRecentWindow('navigator:browser');
var curTabId = vAPI.tabs.getTabId(curWin.gBrowser.selectedTab);
// from 'TabSelect' event
if ( tabId === undefined ) {
tabId = curTabId;
} else if ( badge !== undefined ) {
vAPI.tabIcons[tabId] = {
badge: badge,
img: iconStatus === 'on'
};
}
if ( tabId !== curTabId ) {
return;
}
var button = curWin.document.getElementById(vAPI.toolbarButton.widgetId);
if ( !button ) {
return;
}
/*if ( !button.classList.contains('badged-button') ) {
button.classList.add('badged-button');
}*/
var icon = vAPI.tabIcons[tabId];
button.setAttribute('badge', icon && icon.badge || '');
iconStatus = !button.image || !icon || !icon.img ? '-off' : '';
button.image = vAPI.getURL('img/browsericons/icon16' + iconStatus + '.svg');
};
/******************************************************************************/
vAPI.toolbarButton = {
widgetId: location.host + '-button',
panelId: location.host + '-panel'
};
/******************************************************************************/
vAPI.toolbarButton.init = function() {
CustomizableUI.createWidget({
id: this.widgetId,
type: 'view',
viewId: this.panelId,
defaultArea: CustomizableUI.AREA_NAVBAR,
label: vAPI.app.name,
tooltiptext: vAPI.app.name,
onViewShowing: function({target}) {
var hash = CustomizableUI.getWidget(vAPI.toolbarButton.widgetId)
.areaType === CustomizableUI.TYPE_TOOLBAR ? '' : '#body';
target.firstChild.setAttribute(
'src',
vAPI.getURL('popup.html' + hash)
);
},
onViewHiding: function({target}) {
target.firstChild.setAttribute('src', 'about:blank');
}
});
this.closePopup = function({target}) {
CustomizableUI.hidePanelForNode(
target.ownerDocument.getElementById(vAPI.toolbarButton.panelId)
);
};
vAPI.messaging.globalMessageManager.addMessageListener(
location.host + ':closePopup',
this.closePopup
);
vAPI.unload.push(function() {
CustomizableUI.destroyWidget(vAPI.toolbarButton.widgetId);
vAPI.messaging.globalMessageManager.removeMessageListener(
location.host + ':closePopup',
vAPI.toolbarButton.closePopup
);
});
};
/******************************************************************************/
// it runs with windowWatcher when a window is opened
// vAPI.tabs.registerListeners initializes it
vAPI.toolbarButton.register = function(doc) {
var panel = doc.createElement('panelview');
panel.setAttribute('id', this.panelId);
var iframe = doc.createElement('iframe');
iframe.setAttribute('type', 'content');
doc.getElementById('PanelUI-multiView')
.appendChild(panel)
.appendChild(iframe);
var updateTimer = null;
var delayedResize = function() {
if ( updateTimer ) {
return;
}
updateTimer = setTimeout(resizePopup, 20);
};
var resizePopup = function() {
var panelStyle = panel.style;
var body = iframe.contentDocument.body;
panelStyle.width = iframe.style.width = body.clientWidth + 'px';
panelStyle.height = iframe.style.height = body.clientHeight + 'px';
updateTimer = null;
};
var onPopupReady = function() {
var win = this.contentWindow;
if ( !win || win.location.host !== location.host ) {
return;
}
new win.MutationObserver(delayedResize).observe(win.document, {
childList: true,
attributes: true,
characterData: true,
subtree: true
});
delayedResize();
};
iframe.addEventListener('load', onPopupReady, true);
if ( !this.styleURI ) {
this.styleURI = 'data:text/css,' + encodeURIComponent([
'#' + this.widgetId + ' {',
'list-style-image: url(',
vAPI.getURL('img/browsericons/icon16-off.svg'),
');',
'}',
'#' + this.widgetId + '[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);',
'}',
'#' + this.panelId + ', #' + this.panelId + ' > iframe {',
'width: 180px;',
'height: 310px;',
'overflow: hidden !important;',
'}'
].join(''));
this.styleURI = Services.io.newURI(this.styleURI, null, null);
}
doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIDOMWindowUtils).loadSheet(this.styleURI, 1);
};
/******************************************************************************/
vAPI.toolbarButton.unregister = function(doc) {
var panel = doc.getElementById(this.panelId);
panel.parentNode.removeChild(panel);
doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIDOMWindowUtils).removeSheet(this.styleURI, 1);
};
/******************************************************************************/
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 = target
.webNavigation.QueryInterface(Ci.nsIDocShell)
.chromeEventHandler.ownerDocument.defaultView.messageManager;
}
var listenerId = data.channelName.split('|');
var requestId = data.requestId;
var channelName = listenerId[1];
listenerId = listenerId[0];
var callback = vAPI.messaging.NOOPFUNC;
if ( requestId !== undefined ) {
callback = function(response) {
var message = JSON.stringify({
requestId: requestId,
channelName: channelName,
msg: response !== undefined ? response : null
});
if ( messageManager.sendAsyncMessage ) {
messageManager.sendAsyncMessage(listenerId, message);
} else {
messageManager.broadcastAsyncMessage(listenerId, message);
}
};
}
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('µBlock> 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);
vAPI.unload.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})
);
};
/******************************************************************************/
var httpObserver = {
ABORT: Components.results.NS_BINDING_ABORTED,
lastRequest: {
url: null,
type: null,
tabId: null,
frameId: null,
parentFrameId: null
},
QueryInterface: (function() {
var {XPCOMUtils} = Cu['import']('resource://gre/modules/XPCOMUtils.jsm', {});
return XPCOMUtils.generateQI([
Ci.nsIObserver,
Ci.nsISupportsWeakReference
]);
})(),
register: function() {
Services.obs.addObserver(httpObserver, 'http-on-opening-request', true);
// Services.obs.addObserver(httpObserver, 'http-on-modify-request', true);
Services.obs.addObserver(httpObserver, 'http-on-examine-response', true);
},
unregister: function() {
Services.obs.removeObserver(httpObserver, 'http-on-opening-request');
// Services.obs.removeObserver(httpObserver, 'http-on-modify-request');
Services.obs.removeObserver(httpObserver, 'http-on-examine-response');
},
observe: function(httpChannel, topic) {
// No need for QueryInterface if this check is performed?
if ( !(httpChannel instanceof Ci.nsIHttpChannel) ) {
return;
}
var URI = httpChannel.URI, tabId, result;
if ( topic === 'http-on-modify-request' ) {
// var onHeadersReceived = vAPI.net.onHeadersReceived;
return;
}
if ( topic === 'http-on-examine-request' ) {
try {
tabId = httpChannel.getProperty('tabId');
} catch (ex) {
return;
}
if ( !tabId ) {
return;
}
topic = 'Content-Security-Policy';
try {
result = httpChannel.getResponseHeader(topic);
} catch (ex) {
result = null;
}
result = vAPI.net.onHeadersReceived.callback({
url: URI.spec,
tabId: tabId,
parentFrameId: -1,
responseHeaders: result ? [{name: topic, value: result}] : []
});
if ( result ) {
httpChannel.setResponseHeader(
topic,
result.responseHeaders.pop().value,
true
);
}
return;
}
// http-on-opening-request
var lastRequest = this.lastRequest;
if ( !lastRequest.url || lastRequest.url !== URI.spec ) {
lastRequest.url = null;
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 ( lastRequest.type === 'main_frame'
&& httpChannel instanceof Ci.nsIWritablePropertyBag ) {
httpChannel.setProperty('tabId', lastRequest.tabId);
}
var onBeforeRequest = vAPI.net.onBeforeRequest;
if ( !onBeforeRequest.types.has(lastRequest.type) ) {
return;
}
result = onBeforeRequest.callback({
url: URI.spec,
type: lastRequest.type,
tabId: lastRequest.tabId,
frameId: lastRequest.frameId,
parentFrameId: lastRequest.parentFrameId
});
if ( !result || typeof result !== 'object' ) {
return;
}
if ( result.cancel === true ) {
httpChannel.cancel(this.ABORT);
} else if ( result.redirectUrl ) {
httpChannel.redirectionLimit = 1;
httpChannel.redirectTo(
Services.io.newURI(result.redirectUrl, null, null)
);
}
}
};
/******************************************************************************/
vAPI.net = {};
/******************************************************************************/
vAPI.net.registerListeners = function() {
var typeMap = {
2: 'script',
3: 'image',
4: 'stylesheet',
5: 'object',
6: 'main_frame',
7: 'sub_frame',
11: 'xmlhttprequest'
};
this.onBeforeRequest.types = new Set(this.onBeforeRequest.types);
var shouldLoadListenerMessageName = location.host + ':shouldLoad';
var shouldLoadListener = function(e) {
var lastRequest = httpObserver.lastRequest;
lastRequest.url = e.data.url;
lastRequest.type = typeMap[e.data.type] || 'other';
lastRequest.tabId = vAPI.tabs.getTabId(e.target);
lastRequest.frameId = e.data.frameId;
lastRequest.parentFrameId = e.data.parentFrameId;
};
vAPI.messaging.globalMessageManager.addMessageListener(
shouldLoadListenerMessageName,
shouldLoadListener
);
httpObserver.register();
vAPI.unload.push(function() {
vAPI.messaging.globalMessageManager.removeMessageListener(
shouldLoadListenerMessageName,
shouldLoadListener
);
httpObserver.unregister();
});
};
/******************************************************************************/
vAPI.contextMenu = {
contextMap: {
frame: 'inFrame',
link: 'onLink',
image: 'onImage',
audio: 'onAudio',
video: 'onVideo',
editable: 'onEditableArea'
}
};
/******************************************************************************/
vAPI.contextMenu.displayMenuItem = function(e) {
var doc = e.target.ownerDocument;
var gContextMenu = doc.defaultView.gContextMenu;
var menuitem = doc.getElementById(vAPI.contextMenu.menuItemId);
if ( /^https?$/.test(gContextMenu.browser.currentURI.scheme) === false) {
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.register = function(doc) {
if ( !this.menuItemId ) {
return;
}
var contextMenu = doc.getElementById('contentAreaContextMenu');
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;
}
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.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 = this.ownerDocument.defaultView.gContextMenu;
var details = {
menuItemId: this.id,
tagName: gContextMenu.target.tagName.toLowerCase()
};
if ( gContextMenu.inFrame ) {
details.frameUrl = gContextMenu.focusedWindow.location.href;
} else if ( gContextMenu.onImage || gContextMenu.onAudio || gContextMenu.onVideo ) {
details.srcUrl = gContextMenu.mediaURL;
} else if ( gContextMenu.onLink ) {
details.linkUrl = gContextMenu.linkURL;
}
callback(details, {
id: vAPI.tabs.getTabId(gContextMenu.browser),
url: gContextMenu.browser.currentURI.spec
});
};
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;
};
/******************************************************************************/
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() {};
/******************************************************************************/
// clean up when the extension is disabled
window.addEventListener('unload', function() {
for ( var unload of vAPI.unload ) {
unload();
}
// frameModule needs to be cleared too
var frameModule = {};
Cu['import'](vAPI.getURL('frameModule.js'), frameModule);
frameModule.contentPolicy.unregister();
frameModule.docObserver.unregister();
Cu.unload(vAPI.getURL('frameModule.js'));
});
/******************************************************************************/
})();
/******************************************************************************/