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@ -1,7 +1,7 @@ |
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/******************************************************************************* |
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µBlock - a browser extension to block requests. |
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Copyright (C) 2014 The µBlock authors |
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uMatrix - a browser extension to block requests. |
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Copyright (C) 2014-2017 The uMatrix/uBlock Origin authors |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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@ -26,10 +26,14 @@ |
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/******************************************************************************/ |
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const {classes: Cc, interfaces: Ci} = Components; |
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// Accessing the context of the background page:
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// var win = Services.appShell.hiddenDOMWindow.document.querySelector('iframe[src*=umatrix]').contentWindow;
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let bgProcess; |
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let windowlessBrowser = null; |
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let windowlessBrowserPL = null; |
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let bgProcess = null; |
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let version; |
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const hostName = 'umatrix'; |
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const restartListener = { |
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@ -46,14 +50,75 @@ const restartListener = { |
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/******************************************************************************/ |
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// https://github.com/gorhill/uBlock/issues/2493
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// Fix by https://github.com/gijsk
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// imported from https://github.com/gorhill/uBlock/pull/2497
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function startup(data/*, reason*/) { |
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if ( data !== undefined ) { |
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version = data.version; |
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} |
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let appShell = Components.classes['@mozilla.org/appshell/appShellService;1'] |
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.getService(Components.interfaces.nsIAppShellService); |
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// Already started?
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if ( bgProcess !== null ) { |
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return; |
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} |
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let appShell = Cc['@mozilla.org/appshell/appShellService;1'] |
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.getService(Ci.nsIAppShellService); |
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if ( appShell.createWindowlessBrowser ) { |
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getWindowlessBrowserFrame(appShell); |
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} else { |
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getHiddenWindowBrowserFrame(appShell); |
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} |
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} |
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function createBgProcess(parentDocument) { |
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bgProcess = parentDocument.documentElement.appendChild( |
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parentDocument.createElementNS('http://www.w3.org/1999/xhtml', 'iframe') |
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); |
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bgProcess.setAttribute( |
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'src', |
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'chrome://' + hostName + '/content/background.html#' + version |
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); |
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// https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIMessageListenerManager#addMessageListener%28%29
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// "If the same listener registers twice for the same message, the
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// "second registration is ignored."
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restartListener.messageManager.addMessageListener( |
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hostName + '-restart', |
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restartListener |
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); |
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} |
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function getWindowlessBrowserFrame(appShell) { |
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windowlessBrowser = appShell.createWindowlessBrowser(true); |
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windowlessBrowser.QueryInterface(Ci.nsIInterfaceRequestor); |
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let webProgress = windowlessBrowser.getInterface(Ci.nsIWebProgress); |
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let XPCOMUtils = Components.utils.import('resource://gre/modules/XPCOMUtils.jsm', null).XPCOMUtils; |
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windowlessBrowserPL = { |
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QueryInterface: XPCOMUtils.generateQI([ |
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Ci.nsIWebProgressListener, Ci.nsIWebProgressListener2, |
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Ci.nsISupportsWeakReference]), |
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onStateChange(wbp, request, stateFlags, status) { |
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if ( !request ) { |
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return; |
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} |
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if ( stateFlags & Ci.nsIWebProgressListener.STATE_STOP ) { |
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webProgress.removeProgressListener(windowlessBrowserPL); |
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windowlessBrowserPL = null; |
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createBgProcess(windowlessBrowser.document); |
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} |
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} |
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}; |
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webProgress.addProgressListener(windowlessBrowserPL, Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT); |
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windowlessBrowser.document.location = "data:application/vnd.mozilla.xul+xml;charset=utf-8,<window%20id='" + hostName + "-win'/>"; |
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} |
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function getHiddenWindowBrowserFrame(appShell) { |
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let onReady = function(e) { |
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if ( e ) { |
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this.removeEventListener(e.type, onReady); |
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@ -70,50 +135,8 @@ function startup(data/*, reason*/) { |
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return; |
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} |
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bgProcess = hiddenDoc.documentElement.appendChild( |
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hiddenDoc.createElementNS('http://www.w3.org/1999/xhtml', 'iframe') |
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); |
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bgProcess.setAttribute( |
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'src', |
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'chrome://' + hostName + '/content/background.html#' + version |
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); |
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restartListener.messageManager.addMessageListener( |
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hostName + '-restart', |
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restartListener |
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); |
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createBgProcess(hiddenDoc); |
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}; |
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var ready = false; |
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try { |
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ready = appShell.hiddenDOMWindow && |
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appShell.hiddenDOMWindow.document; |
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} catch (ex) { |
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} |
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if ( ready ) { |
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onReady(); |
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return; |
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} |
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let ww = Components.classes['@mozilla.org/embedcomp/window-watcher;1'] |
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.getService(Components.interfaces.nsIWindowWatcher); |
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ww.registerNotification({ |
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observe: function(win, topic) { |
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if ( topic !== 'domwindowopened' ) { |
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return; |
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} |
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try { |
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void appShell.hiddenDOMWindow; |
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} catch (ex) { |
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return; |
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} |
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ww.unregisterNotification(this); |
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win.addEventListener('DOMContentLoaded', onReady); |
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} |
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}); |
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} |
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/******************************************************************************/ |
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@ -123,7 +146,19 @@ function shutdown(data, reason) { |
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return; |
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} |
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bgProcess.parentNode.removeChild(bgProcess); |
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if ( bgProcess !== null ) { |
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bgProcess.parentNode.removeChild(bgProcess); |
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bgProcess = null; |
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} |
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if ( windowlessBrowser !== null ) { |
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// close() does not exist for older versions of Firefox.
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if ( typeof windowlessBrowser.close === 'function' ) { |
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windowlessBrowser.close(); |
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} |
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windowlessBrowser = null; |
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windowlessBrowserPL = null; |
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} |
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if ( data === undefined ) { |
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return; |
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