addons/firefox-addons/open-incognito: background.js annotate

annotate background.js @ 3:89239e60d9e1 default tip

Enable on privileged pages There are contexts in Firefox (for example, the default new tab page) that contain links to http(s) resources but are considered privileged. In these contexts `menus.onShown` does not provide the link URL to the extension and Open Incognito disables the context menu entry. However, if the entry is not disabled, the `onClicked` listener will actually know the link URL because a user's click on the extension's menu item is considered to be an explicit permission, so Open Incognito could work. Keep the menu item enabled if the URL is not available. There is a drawback that the item will be enabled but do nothing if the actual link has an unknown/unsupported protocol, but this is probably a more rare situation.

author	Denis Lisov <dennis.lissov@gmail.com>
date	Sat, 09 Feb 2019 03:38:05 +0300
parents	3353f3c48b6b
children

rev	line source
0 3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	1 /*
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	2 * Copyright (C) 2018 Guido Berhoerster <guido+open-incognito@berhoerster.name>
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	3 *
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	4 * This Source Code Form is subject to the terms of the Mozilla Public
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	5 * License, v. 2.0. If a copy of the MPL was not distributed with this
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	6 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	7 */
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	8
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	9 'use strict';
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	10
3 89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	11 function hasKnownProtocol(link) {
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	12 return (link.startsWith('http:') \|\|
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	13 link.startsWith('https:') \|\|
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	14 link.startsWith('ftp:'));
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	15 }
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	16
0 3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	17 function onMenuShown(info, tab) {
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	18 let enabled = !tab.incognito &&
3 89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	19 (typeof info.linkUrl === 'undefined' \|\| hasKnownProtocol(info.linkUrl));
0 3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	20 browser.menus.update('open-link-in-private-mode', {enabled});
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	21 browser.menus.refresh();
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	22 }
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	23
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	24 async function onClicked(info, tab) {
3 89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	25 if(!hasKnownProtocol(info.linkUrl)) {
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	26 return;
89239e60d9e1 Enable on privileged pages Denis Lisov <dennis.lissov@gmail.com> parents: 0 diff changeset	27 }
0 3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	28 let activeTabs = await browser.tabs.query({
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	29 active: true,
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	30 currentWindow: false,
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	31 windowType: 'normal'
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	32 });
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	33 console.log('active tabs:', activeTabs);
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	34 let [windowId, ] = activeTabs.reduce((accumulator, currentTab) =>
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	35 (currentTab.incognito && accumulator[1] < currentTab.lastAccessed) ?
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	36 [currentTab.windowId, currentTab.lastAccessed] : accumulator,
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	37 [-1, 0]);
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	38 if (windowId < 0) {
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	39 browser.windows.create({
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	40 incognito: true,
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	41 url: info.linkUrl
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	42 });
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	43 } else {
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	44 browser.tabs.create({
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	45 url: info.linkUrl,
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	46 windowId
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	47 });
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	48 }
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	49 }
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	50
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	51 browser.menus.create({
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	52 id: 'open-link-in-private-mode',
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	53 title: browser.i18n.getMessage('openLinkInPrivateWindow'),
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	54 enabled: false,
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	55 contexts: ['link']
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	56 },
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	57 () => {
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	58 if (browser.runtime.lastError) {
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	59 console.error('Failed to create menu item:', browser.runtime.lastError);
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	60 return;
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	61 }
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	62 browser.menus.onShown.addListener(onMenuShown);
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	63 browser.menus.onClicked.addListener(onClicked);
3353f3c48b6b Initial revision Guido Berhoerster <guido+open-incognito@berhoerster.name> parents: diff changeset	64 });