Issue 3108 - Inject our about: module into all processes

lib/main.js

Index: lib/main.js
===================================================================
--- a/lib/main.js
+++ b/lib/main.js
@@ -17,25 +17,63 @@
 
 /**
  * @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;