He ido a components/com_user/controllers/registration.php (joomla! 1.7.3)
y el problema es que no tengo ni idea de por donde empezar.
Os dejo aqui el código del registration.php: (aunque supongo que es el mismo para todos xD)
Código PHP:
<?php
/**
* @version $Id: registration.php 22355 2011-11-07 05:11:58Z github_bot $
* @package Joomla.Site
* @subpackage com_users
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
require_once JPATH_COMPONENT.'/controller.php';
/**
* Registration controller class for Users.
*
* @package Joomla.Site
* @subpackage com_users
* @since 1.6
*/
class UsersControllerRegistration extends UsersController
{
/**
* Method to activate a user.
*
* @return boolean True on success, false on failure.
* @since 1.6
*/
public function activate()
{
$user = JFactory::getUser();
$uParams = JComponentHelper::getParams('com_users');
// If the user is logged in, return them back to the homepage.
if ($user->get('id')) {
$this->setRedirect('index.php');
return true;
}
// If user registration or account activation is disabled, throw a 403.
if ($uParams->get('useractivation') == 0 || $uParams->get('allowUserRegistration') == 0) {
JError::raiseError(403, JText::_('JLIB_APPLICATION_ERROR_ACCESS_FORBIDDEN'));
return false;
}
$model = $this->getModel('Registration', 'UsersModel');
$token = JRequest::getVar('token', null, 'request', 'alnum');
// Check that the token is in a valid format.
if ($token === null || strlen($token) !== 32) {
JError::raiseError(403, JText::_('JINVALID_TOKEN'));
return false;
}
// Attempt to activate the user.
$return = $model->activate($token);
// Check for errors.
if ($return === false) {
// Redirect back to the homepage.
$this->setMessage(JText::sprintf('COM_USERS_REGISTRATION_SAVE_FAILED', $model->getError()), 'warning');
$this->setRedirect('index.php');
return false;
}
$useractivation = $uParams->get('useractivation');
// Redirect to the login screen.
if ($useractivation == 0)
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_SAVE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));
}
elseif ($useractivation == 1)
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_ACTIVATE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));
}
elseif ($return->getParam('activate'))
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_VERIFY_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration&layout=complete', false));
}
else
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_ADMINACTIVATE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration&layout=complete', false));
}
return true;
}
/**
* Method to register a user.
*
* @return boolean True on success, false on failure.
* @since 1.6
*/
public function register()
{
// Check for request forgeries.
JRequest::checkToken() or jexit(JText::_('JINVALID_TOKEN'));
// If registration is disabled - Redirect to login page.
if(JComponentHelper::getParams('com_users')->get('allowUserRegistration') == 0) {
$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));
return false;
}
// Initialise variables.
$app = JFactory::getApplication();
$model = $this->getModel('Registration', 'UsersModel');
// Get the user data.
$requestData = JRequest::getVar('jform', array(), 'post', 'array');
// Validate the posted data.
$form = $model->getForm();
if (!$form) {
JError::raiseError(500, $model->getError());
return false;
}
$data = $model->validate($form, $requestData);
// Check for validation errors.
if ($data === false) {
// Get the validation messages.
$errors = $model->getErrors();
// Push up to three validation messages out to the user.
for ($i = 0, $n = count($errors); $i < $n && $i < 3; $i++) {
if (JError::isError($errors[$i])) {
$app->enqueueMessage($errors[$i]->getMessage(), 'warning');
} else {
$app->enqueueMessage($errors[$i], 'warning');
}
}
// Save the data in the session.
$app->setUserState('com_users.registration.data', $requestData);
// Redirect back to the registration screen.
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration', false));
return false;
}
// Attempt to save the data.
$return = $model->register($data);
// Check for errors.
if ($return === false) {
// Save the data in the session.
$app->setUserState('com_users.registration.data', $data);
// Redirect back to the edit screen.
$this->setMessage(JText::sprintf('COM_USERS_REGISTRATION_SAVE_FAILED', $model->getError()), 'warning');
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration', false));
return false;
}
// Flush the data from the session.
$app->setUserState('com_users.registration.data', null);
// Redirect to the profile screen.
if ($return === 'adminactivate'){
$this->setMessage(JText::_('COM_USERS_REGISTRATION_COMPLETE_VERIFY'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration&layout=complete', false));
} elseif ($return === 'useractivate') {
$this->setMessage(JText::_('COM_USERS_REGISTRATION_COMPLETE_ACTIVATE'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration&layout=complete', false));
} else {
$this->setMessage(JText::_('COM_USERS_REGISTRATION_SAVE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));
}
return true;
}
} 
