The Tor Browser / file revision

 #filter substitution

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

  /**

  * @class nsURLFormatterService

  *

  * nsURLFormatterService exposes methods to substitute variables in URL formats.

  *

  * Mozilla Applications linking to Mozilla websites are strongly encouraged to use

  * URLs of the following format:

  *

  *   http[s]://%SERVICE%.mozilla.[com|org]/%LOCALE%/

  */

 const Cc = Components.classes;

 const Ci = Components.interfaces;

 const Cu = Components.utils;

 Cu.import("resource://gre/modules/XPCOMUtils.jsm");

 Cu.import("resource://gre/modules/Services.jsm");

 const PREF_APP_DISTRIBUTION           = "distribution.id";

 const PREF_APP_DISTRIBUTION_VERSION   = "distribution.version";

 XPCOMUtils.defineLazyModuleGetter(this, "UpdateChannel",

                                   "resource://gre/modules/UpdateChannel.jsm");

 function nsURLFormatterService() {

   XPCOMUtils.defineLazyGetter(this, "appInfo", function UFS_appInfo() {

     return Cc["@mozilla.org/xre/app-info;1"].

            getService(Ci.nsIXULAppInfo).

            QueryInterface(Ci.nsIXULRuntime);

   });

   XPCOMUtils.defineLazyGetter(this, "ABI", function UFS_ABI() {

     let ABI = "default";

     try {

       ABI = this.appInfo.XPCOMABI;

       if ("@mozilla.org/xpcom/mac-utils;1" in Cc) {

         // Mac universal build should report a different ABI than either macppc

         // or mactel.

         let macutils = Cc["@mozilla.org/xpcom/mac-utils;1"]

                          .getService(Ci.nsIMacUtils);

         if (macutils && macutils.isUniversalBinary) {

           ABI = "Universal-gcc3";

         }

       }

     } catch (e) {}

     return ABI;

   });

   XPCOMUtils.defineLazyGetter(this, "OSVersion", function UFS_OSVersion() {

     let OSVersion = "default";

     let sysInfo = Cc["@mozilla.org/system-info;1"].

                   getService(Ci.nsIPropertyBag2);

     try {

       OSVersion = sysInfo.getProperty("name") + " " +

                   sysInfo.getProperty("version");

       OSVersion += " (" + sysInfo.getProperty("secondaryLibrary") + ")";

     } catch (e) {}

     return encodeURIComponent(OSVersion);

   });

   XPCOMUtils.defineLazyGetter(this, "distribution", function UFS_distribution() {

     let distribution = { id: "default", version: "default" };

     let defaults = Services.prefs.getDefaultBranch(null);

     try {

       distribution.id = defaults.getCharPref(PREF_APP_DISTRIBUTION);

     } catch (e) {}

     try {

       distribution.version = defaults.getCharPref(PREF_APP_DISTRIBUTION_VERSION);

     } catch (e) {}

     return distribution;

   });

 }

 nsURLFormatterService.prototype = {

   classID: Components.ID("{e6156350-2be8-11db-a98b-0800200c9a66}"),

   QueryInterface: XPCOMUtils.generateQI([Ci.nsIURLFormatter]),

   _defaults: {

     LOCALE:           function() Cc["@mozilla.org/chrome/chrome-registry;1"].

                                  getService(Ci.nsIXULChromeRegistry).

                                  getSelectedLocale('global'),

     VENDOR:           function() this.appInfo.vendor,

     NAME:             function() this.appInfo.name,

     ID:               function() this.appInfo.ID,

     VERSION:          function() this.appInfo.version,

     APPBUILDID:       function() this.appInfo.appBuildID,

     PLATFORMVERSION:  function() this.appInfo.platformVersion,

     PLATFORMBUILDID:  function() this.appInfo.platformBuildID,

     APP:              function() this.appInfo.name.toLowerCase().replace(/ /, ""),

     OS:               function() this.appInfo.OS,

     XPCOMABI:         function() this.ABI,

     BUILD_TARGET:     function() this.appInfo.OS + "_" + this.ABI,

     OS_VERSION:       function() this.OSVersion,

     CHANNEL:          function() UpdateChannel.get(),

     MOZILLA_API_KEY:   function() "@MOZ_MOZILLA_API_KEY@",

     GOOGLE_API_KEY:   function() "@MOZ_GOOGLE_API_KEY@",

     DISTRIBUTION:     function() this.distribution.id,

     DISTRIBUTION_VERSION: function() this.distribution.version

   },

   formatURL: function uf_formatURL(aFormat) {

     var _this = this;

     var replacementCallback = function(aMatch, aKey) {

       if (aKey in _this._defaults) {

         return _this._defaults[aKey].call(_this);

       }

       Cu.reportError("formatURL: Couldn't find value for key: " + aKey);

       return aMatch;

     }

     return aFormat.replace(/%([A-Z_]+)%/g, replacementCallback);

   },

   formatURLPref: function uf_formatURLPref(aPref) {

     var format = null;

     var PS = Cc['@mozilla.org/preferences-service;1'].

              getService(Ci.nsIPrefBranch);

     try {

       format = PS.getComplexValue(aPref, Ci.nsISupportsString).data;

     } catch(ex) {

       Cu.reportError("formatURLPref: Couldn't get pref: " + aPref);

       return "about:blank";

     }

     if (!PS.prefHasUserValue(aPref) &&

         /^(data:text\/plain,.+=.+|chrome:\/\/.+\/locale\/.+\.properties)$/.test(format)) {

       // This looks as if it might be a localised preference

       try {

         format = PS.getComplexValue(aPref, Ci.nsIPrefLocalizedString).data;

       } catch(ex) {}

     }

     return this.formatURL(format);

   }

 };

 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([nsURLFormatterService]);