Issue 3108 - Inject our about: module into all processes

lib/main.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /**
  * @fileOverview Starts up Adblock Plus
  */
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 
+bootstrapChildProcesses();
 registerPublicAPI();
 require("filterListener");
 require("contentPolicy");
 require("synchronizer");
 require("notification");
 require("sync");
 require("messageResponder");
 require("ui");
 
+function bootstrapChildProcesses()
+{
+  let info = require("info");
+
+  // Huge hack: we cannot opt out of individual compatibility shims (see
+  // https://bugzilla.mozilla.org/show_bug.cgi?id=1167802). So the about
+  // protocol shim will override our handler in the content process. Prevent
+  // this by making sure it isn't messaged.
+  try
+  {
+    let {AboutProtocolParent} = Cu.import("resource://gre/modules/RemoteAddonsParent.jsm", {});
+    if (AboutProtocolParent && typeof AboutProtocolParent.registerFactory == "function")
+    {
+      let origRegisterFactory = AboutProtocolParent.registerFactory;
+      AboutProtocolParent.registerFactory = function(addon, ...args)
+      {
+        if (addon != info.addonID)
+          origRegisterFactory.call(this, addon, ...args);
+      }
+      onShutdown.add(() => AboutProtocolParent.registerFactory = origRegisterFactory);
+    }
+  }
+  catch(e) {}
+
+  let processScript = info.addonRoot + "lib/child/bootstrap.js?" + Math.random();
+  let messageManager = Cc["@mozilla.org/parentprocessmessagemanager;1"]
+                         .getService(Ci.nsIProcessScriptLoader)
+                         .QueryInterface(Ci.nsIMessageBroadcaster);
+  messageManager.loadProcessScript(processScript, true);
+  messageManager.broadcastAsyncMessage("AdblockPlus:Info", info);
+
+  onShutdown.add(() => {
+    messageManager.broadcastAsyncMessage("AdblockPlus:Shutdown", processScript);
+    messageManager.removeDelayedProcessScript(processScript);
+  });
+}
+
 function registerPublicAPI()
 {
   let {addonRoot} = require("info");
 
   let uri = Services.io.newURI(addonRoot + "lib/Public.jsm", null, null);
   if (uri instanceof Ci.nsIMutable)
     uri.mutable = false;
 
   let classID = Components.ID("5e447bce-1dd2-11b2-b151-ec21c2b6a135");
   let contractID = "@adblockplus.org/abp/public;1";
@@ skipping 10 matching lines @@
 
   let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
   registrar.registerFactory(classID, "Adblock Plus public API URL", contractID, factory);
 
   onShutdown.add(function()
   {
     registrar.unregisterFactory(classID, factory);
     Cu.unload(uri.spec);
   });
 }