Issue 3748 - Update URL Fixer dependency on buildtools to revision c92cc4e4a338 and make it E10S-co…

lib/typoNetError.js

 /*
  * This file is part of the URL Fixer,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * URL Fixer 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.
  *
  * URL Fixer 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 URL Fixer.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 let {Prefs} = require("prefs");
-let {WindowObserver} = require("windowObserver");
-let appIntegration = require("typoAppIntegration");
 let {onWhitelistEntryRemoved} = require("typoRules");
 let {processUserCorrection} = require("typoCollector");
 
-// Load HTML code to add to network error pages
-let netErrorOverlay = null;
-let request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(Ci.nsIXMLHttpRequest);
-request.open("GET", "chrome://" + require("info").addonName + "/content/netError.xhtml");
-request.addEventListener("load", function(event)
+function getNetErrorOverlay(message)
 {
-  netErrorOverlay = event.target.responseXML;
-  
-  new WindowObserver({
-    applyToWindow: function(window)
-    {
-      if (!appIntegration.isKnownWindow(window))
-        return;
-      
-      let browser = appIntegration.getBrowser(window);
-      if (browser)
-        browser.addEventListener("DOMContentLoaded", handlePageLoad, false);
-    },
+  let request = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
+                  .createInstance(Ci.nsIXMLHttpRequest);
+  request.open("GET", "chrome://" + require("info").addonName +
+      "/content/netError.xhtml");
+  request.addEventListener("load", function(event)
+  {
+    message.target.sendAsyncMessage("URLFixer:NetErrorOverlay",
+        event.target.responseText);
+  });
+  request.send(null);
+}
 
-    removeFromWindow: function(window)
-    {
-      if (!appIntegration.isKnownWindow(window))
-        return;
-      
-      let browser = appIntegration.getBrowser(window);
-      if (browser)
-      {
-        browser.removeEventListener("DOMContentLoaded", handlePageLoad, false);
-        if (browser.browsers)
-        {
-          for (let i = 0; i < browser.browsers.length; i++)
-          {
-            let contentWnd = browser.browsers[i].contentWindow;
-            if (contentWnd.document.documentURI.indexOf("about:neterror?") == 0)
-              removeFromNetErrorPage(contentWnd);
-          }
-        }
-      }
-    }
-  });
-}, false);
-request.send(null);
+function processCorrection(message)
+{
+  let {oldHost, newHost} = message.data;
 
-function handlePageLoad(event)
-{
-  let document = event.target;
-  if (document.documentURI.indexOf("about:neterror?") != 0 ||
-      document.documentURI.indexOf("e=netOffline") > 0 ||
-      document.documentURI.indexOf("e=notCached") > 0)
+  processUserCorrection(oldHost, newHost);
+
+  if (newHost.indexOf("www.") == 0 && oldHost.indexOf("www.") == 0)
   {
-    return;
+    // Ignore www. prefix if they both start with it
+    newHost = newHost.substr(4);
+    oldHost = oldHost.substr(4);
+  }
+  if (oldHost && newHost != oldHost)
+  {
+    Prefs.custom_replace[oldHost] = newHost;
+    Prefs.custom_replace = JSON.parse(JSON.stringify(Prefs.custom_replace));
   }
 
-  if (!netErrorOverlay || document.getElementById("url-fixer-section"))
-    return;
-
-  let container = document.getElementById("errorPageContainer");
-  if (!container)
-    return;
-
-  container.appendChild(netErrorOverlay.documentElement.cloneNode(true));
-
-  let textField = document.getElementById("url-fixer-intention");
-  textField.value = document.defaultView.location.href;
-
-  let retryButton = document.getElementById("url-fixer-retry");
-  retryButton.addEventListener("click", function()
+  // Remove from whitelist
+  if (oldHost in Prefs.whitelist)
   {
-    let newURL = textField.value.replace(/^\s+/, "").replace(/\s+$/, "");
-    if (!newURL.length)
-      return;
-
-    let [prefix, newHost, suffix] = parseURL(newURL);
-    let oldHost = document.defaultView.location.hostname.toLowerCase();
-
-    processUserCorrection(oldHost, newHost);
-
-    if (newHost.indexOf("www.") == 0 && oldHost.indexOf("www.") == 0)
-    {
-      // Ignore www. prefix if they both start with it
-      newHost = newHost.substr(4);
-      oldHost = oldHost.substr(4);
-    }
-    if (oldHost && newHost != oldHost)
-    {
-      Prefs.custom_replace[oldHost] = newHost;
-      Prefs.custom_replace = JSON.parse(JSON.stringify(Prefs.custom_replace));
-    }
-    
-    // Remove from whitelist
-    if (oldHost in Prefs.whitelist)
-    {
-      delete Prefs.whitelist[oldHost];
-      onWhitelistEntryRemoved(oldHost);
-      Prefs.whitelist = JSON.parse(JSON.stringify(Prefs.whitelist));
-    }
-    
-    document.defaultView.location.replace(newURL);
-  }, false);
+    delete Prefs.whitelist[oldHost];
+    onWhitelistEntryRemoved(oldHost);
+    Prefs.whitelist = JSON.parse(JSON.stringify(Prefs.whitelist));
+  }
 }
 
-function removeFromNetErrorPage(window)
-{
-  let overlay = window.document.getElementById("url-fixer-section");
-  if (overlay)
-    overlay.parentNode.removeChild(overlay);
-}
+let info = require("info");
+let processScript = info.addonRoot + "lib/child/typoNetError.js?" + Math.random();
+let messageManager = Cc["@mozilla.org/parentprocessmessagemanager;1"]
+                       .getService(Ci.nsIProcessScriptLoader)
+                       .QueryInterface(Ci.nsIMessageListenerManager)
+                       .QueryInterface(Ci.nsIMessageBroadcaster);
+messageManager.loadProcessScript(processScript, true);
 
-function parseURL(url)
-{
-  if (/^\s*((?:\w+:)?\/*(?:[^\/#]*@)?)([^\/:#]*)/.test(url))
-    return [RegExp.$1, RegExp.$2.toLowerCase(), RegExp.rightContext];
-  else
-    return [url, null, null];
-}
+onShutdown.add(() => {
+  messageManager.broadcastAsyncMessage("URLFixer:Shutdown", processScript);
+  messageManager.removeDelayedProcessScript(processScript);
+});
+
+messageManager.addMessageListener("URLFixer:GetNetErrorOverlay",
+    getNetErrorOverlay);
+messageManager.addMessageListener("URLFixer:UserCorrection",
+    processCorrection);
+onShutdown.add(() => {
+  messageManager.removeMessageListener("URLFixer:GetNetErrorOverlay",
+      getNetErrorOverlay);
+  messageManager.removeMessageListener("URLFixer:UserCorrection",
+      processCorrection);
+});