Problems extending CHttpRequest from module

I have developed a backend admin module where users can upload files. I am using Valum’s Ajax File Upload extension to do this. In order to make this work with CSRF validation, I need to extend CHttpRequest to allow CSRF validation with GET methods, which I have already done as follows:


class AdminHttpRequest extends CHttpRequest

{

  public function validateCsrfToken($event)

  {

    .....

The problem is, when I run the code, Yii insists on using CHttpRequest instead of AdminHttpRequest. In the AdminModule code, I have the following:


class AdminModule extends CWebModule

{

     public function init()

     {

		// this method is called when the module is being created

		// you may place code here to customize the module or the application

		$this->setComponents(array(

                     'request' => array(

           		'class' => 'application.modules.admin.components.AdminHttpRequest',

           	     ),

                 )

     }

However, when I try to upload files, I keep getting the following error:

The CSRF token could not be verified. (/Applications/MAMP/htdocs/framework/web/CHttpRequest.php:864)

Any idea why Yii keeps using CHttpRequest instead of AdminHttpRequest? Am I doing something wrong?

Cheers!

Seems that I cannot override the component inside the AdminModule.php code, it must be done inside /protected/config/main.php

Once I added the code into the config file, the CSRF validation works correctly using the AdminHttpRequest component.

Would you mind pasting exactly what you have in your config file in order to get this working? Thanks.