What are the implications of this code?
Posted: Tue Oct 20, 2009 9:24 pm
Hi forum friends,
Stumbled upon following code and I am just wondering what are the implications for the user of a browser
of this referrer-forgery.js
luntrus
Stumbled upon following code and I am just wondering what are the implications for the user of a browser
of this referrer-forgery.js
Code: Select all
--- JonDoFox_Extension/trunk/src/components/referrer-forgery.js 2008/09/01 07:34:13 1366
+++ JonDoFox_Extension/trunk/src/components/referrer-forgery.js 2008/09/01 12:19:39 1368
@@ -10,6 +10,14 @@
}
///////////////////////////////////////////////////////////////////////////////
+// Constants
+///////////////////////////////////////////////////////////////////////////////
+
+const CLASS_ID = Components.ID('{cd05fe5d-8815-4397-bcfd-ca3ae4029193}');
+const CLASS_NAME = 'Referrer Forgery';
+const CONTRACT_ID = '@jondos.de/referrer-forgery;1';
+
+///////////////////////////////////////////////////////////////////////////////
// Observer for "http-on-modify-request"
///////////////////////////////////////////////////////////////////////////////
@@ -61,6 +69,14 @@
// If present, uninstall
if (loc != null) {
log("RefControl found, uninstalling ..");
+ // Prompt a message window
+ var prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].
+ getService(Components.interfaces.nsIPromptService);
+ prompts.alert(null, "Attention", "The RefControl extension is now " +
+ "going to be uninstalled since the new version of the " +
+ "JonDoFox extension will replace RefControl's " +
+ "functionality!");
+ // Uninstall
em.uninstallItem(id);
} else {
log("RefControl not found");
@@ -77,8 +93,8 @@
var observers = Components.classes["@mozilla.org/observer-service;1"].
getService(Components.interfaces.nsIObserverService);
- // XXX: true or false?
- observers.addObserver(this, "profile-do-change", true);
+ // XXX: Insert true or false?
+ observers.addObserver(this, "final-ui-startup", true);
observers.addObserver(this, "http-on-modify-request", true);
observers.addObserver(this, "quit-application-granted", true);
} catch (ex) {
@@ -93,7 +109,7 @@
var observers = Components.classes["@mozilla.org/observer-service;1"].
getService(Components.interfaces.nsIObserverService);
- observers.removeObserver(this, "profile-do-change");
+ observers.removeObserver(this, "final-ui-startup");
observers.removeObserver(this, "http-on-modify-request");
observers.removeObserver(this, "quit-application-granted");
} catch (ex) {
@@ -105,24 +121,24 @@
observe: function(subject, topic, data) {
try {
switch (topic) {
- case 'http-on-modify-request':
- subject.QueryInterface(Components.interfaces.nsIHttpChannel);
- this.onModifyRequest(subject);
- break;
-
case 'app-startup':
log("Got topic --> " + topic);
this.registerObservers();
break;
+
+ case 'quit-application-granted':
+ log("Got topic --> " + topic);
+ this.unregisterObservers();
+ break;
- case 'profile-do-change':
+ case 'final-ui-startup':
log("Got topic --> " + topic);
this.checkForRefControl();
break;
- case 'quit-application-granted':
- log("Got topic --> " + topic);
- this.unregisterObservers();
+ case 'http-on-modify-request':
+ subject.QueryInterface(Components.interfaces.nsIHttpChannel);
+ this.onModifyRequest(subject);
break;
default:
@@ -148,44 +164,40 @@
// The actual component
///////////////////////////////////////////////////////////////////////////////
-var refForgery = {
+var ReferrerForgeryModule = {
- CLASS_ID: Components.ID("{cd05fe5d-8815-4397-bcfd-ca3ae4029193}"),
- CONTRACT_ID: "@jondos.de/referrer-forgery;1",
- CLASS_NAME: "Referrer Forgery",
-
firstTime: true,
- // Implement nsIModule
+ // BEGIN nsIModule
registerSelf: function(compMgr, fileSpec, location, type) {
- log("Registering ** " + this.CLASS_NAME + " **");
+ log("Registering '" + CLASS_NAME + "' ..");
if (this.firstTime) {
this.firstTime = false;
throw Components.results.NS_ERROR_FACTORY_REGISTER_AGAIN;
}
compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
- compMgr.registerFactoryLocation(this.CLASS_ID, this.CLASS_NAME,
- this.CONTRACT_ID, fileSpec, location, type);
+ compMgr.registerFactoryLocation(CLASS_ID, CLASS_NAME, CONTRACT_ID,
+ fileSpec, location, type);
var catMan = Components.classes["@mozilla.org/categorymanager;1"].
getService(Components.interfaces.nsICategoryManager);
- catMan.addCategoryEntry("app-startup", "RefForgery", this.CONTRACT_ID,
- true, true);
+ catMan.addCategoryEntry("app-startup", "RefForgery", CONTRACT_ID, true,
+ true);
},
unregisterSelf: function(compMgr, fileSpec, location) {
- log("Unregistering ** " + this.CLASS_NAME + " **");
+ log("Unregistering '" + CLASS_NAME + "' ..");
// Remove the auto-startup
compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
- compMgr.unregisterFactoryLocation(this.CLASS_ID, fileSpec);
+ compMgr.unregisterFactoryLocation(CLASS_ID, fileSpec);
var catMan = Components.classes["@mozilla.org/categorymanager;1"].
getService(Components.interfaces.nsICategoryManager);
- catMan.deleteCategoryEntry("app-startup", this.CONTRACT_ID, true);
+ catMan.deleteCategoryEntry("app-startup", CONTRACT_ID, true);
},
getClassObject: function(compMgr, cid, iid) {
- if (!cid.equals(this.CLASS_ID))
+ if (!cid.equals(CLASS_ID))
throw Components.results.NS_ERROR_FACTORY_NOT_REGISTERED;
if (!iid.equals(Components.interfaces.nsIFactory))
throw Components.results.NS_ERROR_NO_INTERFACE;
@@ -195,7 +207,7 @@
canUnload: function(compMgr) {
return true;
},
- // end Implement nsIModule
+ // END nsIModule
// Implement nsIFactory
classFactory: {
@@ -214,5 +226,5 @@
///////////////////////////////////////////////////////////////////////////////
function NSGetModule(comMgr, fileSpec) {
- return refForgery;
+ return ReferrerForgeryModule;
}
