uBlock/platform/safari/vapi-background.js

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/*******************************************************************************
µBlock - a Chromium 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 µBlock, SafariBrowserTab */
// For background page
/******************************************************************************/
(function() {
'use strict';
/******************************************************************************/
self.vAPI = self.vAPI || {};
vAPI.safari = true;
/******************************************************************************/
var xhr = new XMLHttpRequest;
xhr.overrideMimeType('application/x-javascript;charset=utf-8');
xhr.open('GET', 'Info.plist', false);
xhr.send();
xhr = xhr.responseText;
vAPI.app = {
name: xhr.match(/DisplayName<\S+[^>]+>([^<]+)/)[1],
version: xhr.match(/ShortVersionString<\S+[^>]+>([^<]+)/)[1]
};
/******************************************************************************/
vAPI.app.restart = function() {
};
/******************************************************************************/
// addContentScriptFromURL allows whitelisting,
// so load sitepaching this way, instead of adding it to the Info.plist
safari.extension.addContentScriptFromURL(
safari.extension.baseURI + 'js/sitepatch-safari.js',
[
'http://www.youtube.com/*',
'https://www.youtube.com/*',
'http://www.youtube-nocookie.com/*',
'https://www.youtube-nocookie.com/*'
]
);
/******************************************************************************/
safari.extension.settings.addEventListener('change', function(e) {
if (e.key === 'open_prefs') {
vAPI.tabs.open({url: 'dashboard.html', active: true});
}
}, false);
/******************************************************************************/
vAPI.storage = {
_storage: safari.extension.settings,
QUOTA_BYTES: 52428800, // copied from Info.plist
get: function(keys, callback) {
if (typeof callback !== 'function') {
return;
}
var i, value, result = {};
if (keys === null) {
for (i in this._storage) {
value = this._storage[i];
if (typeof value === 'string') {
result[i] = JSON.parse(value);
}
}
}
else if (typeof keys === 'string') {
value = this._storage[keys];
if (typeof value === 'string') {
result[keys] = JSON.parse(value);
}
}
else if (Array.isArray(keys)) {
for ( i = 0; i < keys.length; ++i) {
value = this._storage[i];
if (typeof value === 'string') {
result[keys[i]] = JSON.parse(value);
}
}
}
else if (typeof keys === 'object') {
for (i in keys) {
value = this._storage[i];
if (typeof value === 'string') {
result[i] = JSON.parse(value);
}
else {
result[i] = keys[i];
}
}
}
callback(result);
},
set: function(details, callback) {
for (var key in details) {
this._storage.setItem(key, JSON.stringify(details[key]));
}
if (typeof callback === 'function') {
callback();
}
},
remove: function(keys) {
if (typeof keys === 'string') {
keys = [keys];
}
for (var i = 0; i < keys.length; ++i) {
this._storage.removeItem(keys[i]);
}
},
clear: function(callback) {
this._storage.clear();
callback();
},
getBytesInUse: function(keys, callback) {
if (typeof callback !== 'function') {
return;
}
var key, size = 0;
if (keys === null) {
for (key in this._storage) {
size += (this._storage[key] || '').length;
}
}
else {
if (typeof keys === 'string') {
keys = [keys];
}
for (key = 0; key < keys.length; ++key) {
size += (this._storage[keys[key]] || '').length;
}
}
callback(size);
}
};
/******************************************************************************/
vAPI.tabs = {
stack: {},
stackID: 1
};
/******************************************************************************/
vAPI.tabs.registerListeners = function() {
var onNavigation = this.onNavigation;
if (typeof onNavigation === 'function') {
this.onNavigation = function(e) {
// e.url is not present for local files or data URIs,
// or probably for those URLs which we don't have access to
if (!e.target || !e.target.url) {
return;
}
onNavigation({
frameId: 0,
tabId: vAPI.tabs.getTabId(e.target),
url: e.target.url
});
};
safari.application.addEventListener('navigate', this.onNavigation, true);
}
// onClosed handled in the main tab-close event
// onUpdated handled via monitoring the history.pushState on web-pages
// onPopup is handled in window.open on web-pages
};
/******************************************************************************/
vAPI.tabs.getTabId = function(tab) {
for (var i in vAPI.tabs.stack) {
if (vAPI.tabs.stack[i] === tab) {
return +i;
}
}
return -1;
};
/******************************************************************************/
vAPI.tabs.get = function(tabId, callback) {
var tab;
if (tabId === null) {
tab = safari.application.activeBrowserWindow.activeTab;
tabId = this.getTabId(tab);
}
else {
tab = this.stack[tabId];
}
if (!tab) {
callback();
return;
}
callback({
id: tabId,
index: tab.browserWindow.tabs.indexOf(tab),
windowId: safari.application.browserWindows.indexOf(tab.browserWindow),
active: tab === tab.browserWindow.activeTab,
url: tab.url,
title: tab.title
});
};
/******************************************************************************/
// 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)) {
details.url = vAPI.getURL(details.url);
}
var curWin, tab;
if (details.select) {
tab = safari.application.browserWindows.some(function(win) {
var rgxHash = /#.*/;
// this is questionable
var url = details.url.replace(rgxHash, '');
for (var i = 0; i < win.tabs.length; ++i) {
if (win.tabs[i].url.replace(rgxHash, '') === url) {
win.tabs[i].activate();
return true;
}
}
});
if (tab) {
return;
}
}
if (details.active === undefined) {
details.active = true;
}
curWin = safari.application.activeBrowserWindow;
// it must be calculated before opening a new tab,
// otherwise the new tab will be the active tab here
if (details.index === -1) {
details.index = curWin.tabs.indexOf(curWin.activeTab) + 1;
}
tab = details.tabId && this.stack[details.tabId]
|| curWin.openTab(details.active ? 'foreground' : 'background');
if (details.index !== undefined) {
curWin.insertTab(tab, details.index);
}
tab.url = details.url;
};
/******************************************************************************/
vAPI.tabs.remove = function(tabIds) {
if (tabIds instanceof SafariBrowserTab) {
tabIds = this.getTabId(tabIds);
}
if (!Array.isArray(tabIds)) {
tabIds = [tabIds];
}
for (var i = 0; i < tabIds.length; i++) {
if (this.stack[tabIds[i]]) {
this.stack[tabIds[i]].close();
}
}
};
/******************************************************************************/
vAPI.tabs.injectScript = function(tabId, details, callback) {
var tab;
if (tabId) {
tab = this.stack[tabId];
}
else {
tab = safari.application.activeBrowserWindow.activeTab;
}
if (details.file) {
var xhr = new XMLHttpRequest;
xhr.overrideMimeType('application/x-javascript;charset=utf-8');
xhr.open('GET', details.file, false);
xhr.send();
details.code = xhr.responseText;
}
tab.page.dispatchMessage('broadcast', {
portName: 'vAPI',
msg: {
cmd: 'runScript',
details: details
}
});
if (typeof callback === 'function') {
setTimeout(callback, 13);
}
};
/******************************************************************************/
// bind tabs to unique IDs
(function() {
var wins = safari.application.browserWindows, i = wins.length, j;
var tabs = [];
while (i--) {
j = wins[i].tabs.length;
while (j--) {
tabs.push(wins[i].tabs[j]);
}
}
return tabs;
})().forEach(function(tab) {
vAPI.tabs.stack[vAPI.tabs.stackID++] = tab;
});
/******************************************************************************/
safari.application.addEventListener('open', function(e) {
// ignore windows
if (e.target instanceof SafariBrowserTab) {
vAPI.tabs.stack[vAPI.tabs.stackID++] = e.target;
}
}, true);
/******************************************************************************/
safari.application.addEventListener('close', function(e) {
// ignore windows
if (!(e.target instanceof SafariBrowserTab)) {
return;
}
var tabId = vAPI.tabs.getTabId(e.target);
if (tabId > -1) {
// to not add another listener, put this here
// instead of vAPI.tabs.registerListeners
if (typeof vAPI.tabs.onClosed === 'function') {
vAPI.tabs.onClosed(tabId);
}
delete vAPI.tabIcons[tabId];
delete vAPI.tabs.stack[tabId];
}
}, true);
/******************************************************************************/
// update badge when tab is activated
safari.application.addEventListener('activate', function(e) {
// hide popover, since in some cases won't close by itself
var items = safari.extension.toolbarItems;
for (var i = 0; i < items.length; ++i) {
if (items[i].browserWindow === safari.application.activeBrowserWindow) {
if (items[i].popover) {
items[i].popover.hide();
}
break;
}
}
// ignore windows
if (!(e.target instanceof SafariBrowserTab)) {
return;
}
// update the badge, when tab is selected
vAPI.setIcon();
}, true);
/******************************************************************************/
// reload the popup when that is opened
safari.application.addEventListener('popover', function(e) {
e.target.contentWindow.document.body.textContent = '';
e.target.contentWindow.location.reload();
}, true);
/******************************************************************************/
vAPI.tabIcons = { /*tabId: {badge: 0, img: dict}*/ };
vAPI.setIcon = function(tabId, img, badge) {
var curTabId = vAPI.tabs.getTabId(
safari.application.activeBrowserWindow.activeTab
);
// from 'activate' event
if (tabId === undefined) {
tabId = curTabId;
}
else {
vAPI.tabIcons[tabId] = {
badge: badge || 0/*,
img: img*/
};
}
if (tabId !== curTabId) {
return;
}
// if the selected tab has the same ID, then update the badge too,
// or always update it when changing tabs ('activate' event)
var items = safari.extension.toolbarItems, i = items.length;
while (i--) {
if (items[i].browserWindow === safari.application.activeBrowserWindow) {
if (vAPI.tabIcons[tabId]) {
items[i].badge = vAPI.tabIcons[tabId].badge;
// items[i].img = vAPI.tabIcons[tabId].img;
}
else {
items[i].badge = 0;
}
return;
}
}
};
/******************************************************************************/
vAPI.messaging = {
listeners: {},
defaultHandler: null,
NOOPFUNC: function(){},
UNHANDLED: 'vAPI.messaging.notHandled'
};
/******************************************************************************/
vAPI.messaging.listen = function(listenerName, callback) {
this.listeners[listenerName] = callback;
};
/******************************************************************************/
vAPI.messaging.onMessage = function(request) {
var callback = vAPI.messaging.NOOPFUNC;
if ( request.message.requestId !== undefined ) {
callback = function(response) {
request.target.page.dispatchMessage(
request.name,
{
requestId: request.message.requestId,
portName: request.message.portName,
msg: response !== undefined ? response : null
}
);
};
}
var sender = {
tab: {
id: vAPI.tabs.getTabId(request.target)
}
};
// Specific handler
var r = vAPI.messaging.UNHANDLED;
var listener = vAPI.messaging.listeners[request.message.portName];
if ( typeof listener === 'function' ) {
r = listener(request.message.msg, sender, callback);
}
if ( r !== vAPI.messaging.UNHANDLED ) {
return;
}
// Default handler
r = vAPI.messaging.defaultHandler(request.message.msg, sender, callback);
if ( r !== vAPI.messaging.UNHANDLED ) {
return;
}
console.error('µBlock> messaging > unknown request: %o', request.message);
// 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;
// the third parameter must stay false (bubbling), so later
// onBeforeRequest will use true (capturing), where we can invoke
// stopPropagation() (this way this.onMessage won't be fired)
safari.application.addEventListener('message', this.onMessage, false);
};
/******************************************************************************/
vAPI.messaging.broadcast = function(message) {
message = {
broadcast: true,
msg: message
};
for (var tabId in vAPI.tabs.stack) {
vAPI.tabs.stack[tabId].page.dispatchMessage('broadcast', message);
}
};
/******************************************************************************/
safari.application.addEventListener('beforeNavigate', function(e) {
if (!vAPI.tabs.expectPopUpFrom || e.url === 'about:blank') {
return;
}
var details = {
url: e.url,
tabId: vAPI.tabs.getTabId(e.target),
sourceTabId: vAPI.tabs.expectPopUpFrom
};
vAPI.tabs.expectPopUpFrom = null;
if (vAPI.tabs.onPopup(details)) {
e.preventDefault();
if (vAPI.tabs.stack[details.sourceTabId]) {
vAPI.tabs.stack[details.sourceTabId].activate();
}
}
}, true);
/******************************************************************************/
vAPI.net = {}
vAPI.net.registerListeners = function() {
var onBeforeRequest = this.onBeforeRequest;
if (typeof onBeforeRequest.callback === 'function') {
if (!Array.isArray(onBeforeRequest.types)) {
onBeforeRequest.types = [];
}
onBeforeRequest = onBeforeRequest.callback;
this.onBeforeRequest.callback = function(e) {
var block;
if (e.name !== 'canLoad') {
return;
}
// no stopPropagation if it was called from beforeNavigate event
if (e.stopPropagation) {
e.stopPropagation();
}
if (e.message.isWhiteListed) {
block = µBlock.URI.hostnameFromURI(e.message.isWhiteListed);
block = µBlock.URI.domainFromHostname(block) || block;
e.message = !!µBlock.netWhitelist[block];
return e.message;
}
// when the URL changes, but the document doesn't
if (e.message.type === 'popstate') {
vAPI.tabs.onUpdated(
vAPI.tabs.getTabId(e.target),
{url: e.message.url},
{url: e.message.url}
);
return;
}
// blocking unwanted pop-ups
else if (e.message.type === 'popup') {
if (e.message.url === 'about:blank') {
vAPI.tabs.expectPopUpFrom = vAPI.tabs.getTabId(e.target);
e.message = true;
return;
}
e.message = !vAPI.tabs.onPopup({
url: e.message.url,
tabId: 0,
sourceTabId: vAPI.tabs.getTabId(e.target)
});
return;
}
block = vAPI.net.onBeforeRequest;
if (block.types.indexOf(e.message.type) < 0) {
return true;
}
e.message.tabId = vAPI.tabs.getTabId(e.target);
block = onBeforeRequest(e.message);
// truthy return value will allow the request,
// except when redirectUrl is present
if (block && typeof block === 'object') {
if (block.cancel === true) {
e.message = false;
}
else if (e.message.type === 'script'
&& typeof block.redirectUrl === "string") {
e.message = block.redirectUrl;
}
else {
e.message = true;
}
}
else {
e.message = true;
}
return e.message;
};
safari.application.addEventListener(
'message',
this.onBeforeRequest.callback,
true
);
}
};
/******************************************************************************/
vAPI.contextMenu = {};
/******************************************************************************/
vAPI.contextMenu.create = function(details, callback) {
var contexts = details.contexts;
var menuItemId = details.id;
var menuTitle = details.title;
if (Array.isArray(contexts) && contexts.length) {
contexts = contexts.indexOf('all') === -1 ? contexts : null;
}
else {
// default in Chrome
contexts = ['page'];
}
this.onContextMenu = function(e) {
var uI = e.userInfo;
if (uI && /^https?:\/\//i.test(uI.pageUrl)) {
if (contexts) {
var invalidContext = true;
for (var i = 0; i < contexts.length; ++i) {
if (contexts[i] === 'frame') {
if (uI.insideFrame) {
invalidContext = false;
break;
}
}
else if (contexts[i] === 'link') {
if (uI.linkHref) {
invalidContext = false;
break;
}
}
else if (contexts[i] === 'image') {
if (uI.srcUrl) {
invalidContext = false;
break;
}
}
else if (contexts[i] === 'audio'
|| contexts[i] === 'video') {
if (uI.srcUrl && uI.tagName === contexts[i]) {
invalidContext = false;
break;
}
}
else if (contexts[i] === 'editable') {
if (uI.editable) {
invalidContext = false;
break;
}
}
else if (contexts[i] === 'page') {
if (!(uI.insideFrame || uI.linkHref
|| uI.mediaType || uI.editable)) {
invalidContext = false;
break;
}
}
}
if (invalidContext) {
return;
}
}
e.contextMenu.appendContextMenuItem(menuItemId, menuTitle);
}
};
this.onContextMenuCmd = function(e) {
if (e.command === menuItemId) {
var tab = e.currentTarget.activeBrowserWindow.activeTab;
e.userInfo.menuItemId = menuItemId;
callback(e.userInfo, tab ? {
id: vAPI.tabs.getTabId(tab),
url: tab.url
} : undefined);
}
};
safari.application.addEventListener('contextmenu', this.onContextMenu);
safari.application.addEventListener("command", this.onContextMenuCmd);
};
/******************************************************************************/
vAPI.contextMenu.remove = function() {
safari.application.removeEventListener('contextmenu', this.onContextMenu);
safari.application.removeEventListener("command", this.onContextMenuCmd);
this.onContextMenu = null;
this.onContextMenuCmd = 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() {
};
/******************************************************************************/
})();