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<?php
/**
* @package Joomla.Site
* @subpackage com_users
*
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
/**
* Rest model class for Users.
*
* @since 1.5
*/
class UsersModelReset extends JModelForm
{
/**
* Method to get the password reset request form.
*
* The base form is loaded from XML and then an event is fired
* for users plugins to extend the form with extra fields.
*
* @param array $data An optional array of data for the form to interogate.
* @param boolean $loadData True if the form is to load its own data (default case), false if not.
*
* @return JForm A JForm object on success, false on failure
*
* @since 1.6
*/
public function getForm($data = array(), $loadData = true)
{
// Get the form.
$form = $this->loadForm('com_users.reset_request', 'reset_request', array('control' => 'jform', 'load_data' => $loadData));
if (empty($form))
{
return false;
}
return $form;
}
/**
* Method to get the password reset complete form.
*
* @param array $data Data for the form.
* @param boolean $loadData True if the form is to load its own data (default case), false if not.
*
* @return JForm A JForm object on success, false on failure
*
* @since 1.6
*/
public function getResetCompleteForm($data = array(), $loadData = true)
{
// Get the form.
$form = $this->loadForm('com_users.reset_complete', 'reset_complete', $options = array('control' => 'jform'));
if (empty($form))
{
return false;
}
return $form;
}
/**
* Method to get the password reset confirm form.
*
* @param array $data Data for the form.
* @param boolean $loadData True if the form is to load its own data (default case), false if not.
*
* @return JForm A JForm object on success, false on failure
*
* @since 1.6
*/
public function getResetConfirmForm($data = array(), $loadData = true)
{
// Get the form.
$form = $this->loadForm('com_users.reset_confirm', 'reset_confirm', $options = array('control' => 'jform'));
if (empty($form))
{
return false;
}
else
{
$form->setValue('token', '', JFactory::getApplication()->input->get('token'));
}
return $form;
}
/**
* Override preprocessForm to load the user plugin group instead of content.
*
* @param JForm $form A JForm object.
* @param mixed $data The data expected for the form.
* @param string $group The name of the plugin group to import (defaults to "content").
*
* @return void
*
* @throws Exception if there is an error in the form event.
*
* @since 1.6
*/
protected function preprocessForm(JForm $form, $data, $group = 'user')
{
parent::preprocessForm($form, $data, $group);
}
/**
* Method to auto-populate the model state.
*
* Note. Calling getState in this method will result in recursion.
*
* @return void
*
* @since 1.6
*/
protected function populateState()
{
// Get the application object.
$params = JFactory::getApplication()->getParams('com_users');
// Load the parameters.
$this->setState('params', $params);
}
/**
* Save the new password after reset is done
*
* @param array $data The data expected for the form.
*
* @return mixed Exception | JException | boolean
*
* @since 1.6
*/
public function processResetComplete($data)
{
// Get the form.
$form = $this->getResetCompleteForm();
$data['email'] = JStringPunycode::emailToPunycode($data['email']);
// Check for an error.
if ($form instanceof Exception)
{
return $form;
}
// Filter and validate the form data.
$data = $form->filter($data);
$return = $form->validate($data);
// Check for an error.
if ($return instanceof Exception)
{
return $return;
}
// Check the validation results.
if ($return === false)
{
// Get the validation messages from the form.
foreach ($form->getErrors() as $formError)
{
$this->setError($formError->getMessage());
}
return false;
}
// Get the token and user id from the confirmation process.
$app = JFactory::getApplication();
$token = $app->getUserState('com_users.reset.token', null);
$userId = $app->getUserState('com_users.reset.user', null);
// Check the token and user id.
if (empty($token) || empty($userId))
{
return new JException(JText::_('COM_USERS_RESET_COMPLETE_TOKENS_MISSING'), 403);
}
// Get the user object.
$user = JUser::getInstance($userId);
// Check for a user and that the tokens match.
if (empty($user) || $user->activation !== $token)
{
$this->setError(JText::_('COM_USERS_USER_NOT_FOUND'));
return false;
}
// Make sure the user isn't blocked.
if ($user->block)
{
$this->setError(JText::_('COM_USERS_USER_BLOCKED'));
return false;
}
// Check if the user is reusing the current password if required to reset their password
if ($user->requireReset == 1 && JUserHelper::verifyPassword($data['password1'], $user->password))
{
$this->setError(JText::_('JLIB_USER_ERROR_CANNOT_REUSE_PASSWORD'));
return false;
}
// Update the user object.
$user->password = JUserHelper::hashPassword($data['password1']);
$user->activation = '';
$user->password_clear = $data['password1'];
// Save the user to the database.
if (!$user->save(true))
{
return new JException(JText::sprintf('COM_USERS_USER_SAVE_FAILED', $user->getError()), 500);
}
// Flush the user data from the session.
$app->setUserState('com_users.reset.token', null);
$app->setUserState('com_users.reset.user', null);
return true;
}
/**
* Receive the reset password request
*
* @param array $data The data expected for the form.
*
* @return mixed Exception | JException | boolean
*
* @since 1.6
*/
public function processResetConfirm($data)
{
// Get the form.
$form = $this->getResetConfirmForm();
$data['email'] = JStringPunycode::emailToPunycode($data['email']);
// Check for an error.
if ($form instanceof Exception)
{
return $form;
}
// Filter and validate the form data.
$data = $form->filter($data);
$return = $form->validate($data);
// Check for an error.
if ($return instanceof Exception)
{
return $return;
}
// Check the validation results.
if ($return === false)
{
// Get the validation messages from the form.
foreach ($form->getErrors() as $formError)
{
$this->setError($formError->getMessage());
}
return false;
}
// Find the user id for the given token.
$db = $this->getDbo();
$query = $db->getQuery(true)
->select('activation')
->select('id')
->select('block')
->from($db->quoteName('#__users'))
->where($db->quoteName('username') . ' = ' . $db->quote($data['username']));
// Get the user id.
$db->setQuery($query);
try
{
$user = $db->loadObject();
}
catch (RuntimeException $e)
{
return new JException(JText::sprintf('COM_USERS_DATABASE_ERROR', $e->getMessage()), 500);
}
// Check for a user.
if (empty($user))
{
$this->setError(JText::_('COM_USERS_USER_NOT_FOUND'));
return false;
}
if (!$user->activation)
{
$this->setError(JText::_('COM_USERS_USER_NOT_FOUND'));
return false;
}
// Verify the token
if (!(JUserHelper::verifyPassword($data['token'], $user->activation)))
{
$this->setError(JText::_('COM_USERS_USER_NOT_FOUND'));
return false;
}
// Make sure the user isn't blocked.
if ($user->block)
{
$this->setError(JText::_('COM_USERS_USER_BLOCKED'));
return false;
}
// Push the user data into the session.
$app = JFactory::getApplication();
$app->setUserState('com_users.reset.token', $user->activation);
$app->setUserState('com_users.reset.user', $user->id);
return true;
}
/**
* Method to start the password reset process.
*
* @param array $data The data expected for the form.
*
* @return mixed Exception | JException | boolean
*
* @since 1.6
*/
public function processResetRequest($data)
{
$config = JFactory::getConfig();
// Get the form.
$form = $this->getForm();
$data['email'] = JStringPunycode::emailToPunycode($data['email']);
// Check for an error.
if ($form instanceof Exception)
{
return $form;
}
// Filter and validate the form data.
$data = $form->filter($data);
$return = $form->validate($data);
// Check for an error.
if ($return instanceof Exception)
{
return $return;
}
// Check the validation results.
if ($return === false)
{
// Get the validation messages from the form.
foreach ($form->getErrors() as $formError)
{
$this->setError($formError->getMessage());
}
return false;
}
// Find the user id for the given email address.
$db = $this->getDbo();
$query = $db->getQuery(true)
->select('id')
->from($db->quoteName('#__users'))
->where($db->quoteName('email') . ' = ' . $db->quote($data['email']));
// Get the user object.
$db->setQuery($query);
try
{
$userId = $db->loadResult();
}
catch (RuntimeException $e)
{
$this->setError(JText::sprintf('COM_USERS_DATABASE_ERROR', $e->getMessage()), 500);
return false;
}
// Check for a user.
if (empty($userId))
{
$this->setError(JText::_('COM_USERS_INVALID_EMAIL'));
return false;
}
// Get the user object.
$user = JUser::getInstance($userId);
// Make sure the user isn't blocked.
if ($user->block)
{
$this->setError(JText::_('COM_USERS_USER_BLOCKED'));
return false;
}
// Make sure the user isn't a Super Admin.
if ($user->authorise('core.admin'))
{
$this->setError(JText::_('COM_USERS_REMIND_SUPERADMIN_ERROR'));
return false;
}
// Make sure the user has not exceeded the reset limit
if (!$this->checkResetLimit($user))
{
$resetLimit = (int) JFactory::getApplication()->getParams()->get('reset_time');
$this->setError(JText::plural('COM_USERS_REMIND_LIMIT_ERROR_N_HOURS', $resetLimit));
return false;
}
// Set the confirmation token.
$token = JApplicationHelper::getHash(JUserHelper::genRandomPassword());
$hashedToken = JUserHelper::hashPassword($token);
$user->activation = $hashedToken;
// Save the user to the database.
if (!$user->save(true))
{
return new JException(JText::sprintf('COM_USERS_USER_SAVE_FAILED', $user->getError()), 500);
}
// Assemble the password reset confirmation link.
$mode = $config->get('force_ssl', 0) == 2 ? 1 : (-1);
$itemid = UsersHelperRoute::getLoginRoute();
$itemid = $itemid !== null ? '&Itemid=' . $itemid : '';
$link = 'index.php?option=com_users&view=reset&layout=confirm&token=' . $token . $itemid;
// Put together the email template data.
$data = $user->getProperties();
$data['fromname'] = $config->get('fromname');
$data['mailfrom'] = $config->get('mailfrom');
$data['sitename'] = $config->get('sitename');
$data['link_text'] = JRoute::_($link, false, $mode);
$data['link_html'] = JRoute::_($link, true, $mode);
$data['token'] = $token;
$subject = JText::sprintf(
'COM_USERS_EMAIL_PASSWORD_RESET_SUBJECT',
$data['sitename']
);
$body = JText::sprintf(
'COM_USERS_EMAIL_PASSWORD_RESET_BODY',
$data['sitename'],
$data['token'],
$data['link_text']
);
// Send the password reset request email.
$return = JFactory::getMailer()->sendMail($data['mailfrom'], $data['fromname'], $user->email, $subject, $body);
// Check for an error.
if ($return !== true)
{
return new JException(JText::_('COM_USERS_MAIL_FAILED'), 500);
}
return true;
}
/**
* Method to check if user reset limit has been exceeded within the allowed time period.
*
* @param JUser $user User doing the password reset
*
* @return boolean true if user can do the reset, false if limit exceeded
*
* @since 2.5
*/
public function checkResetLimit($user)
{
$params = JFactory::getApplication()->getParams();
$maxCount = (int) $params->get('reset_count');
$resetHours = (int) $params->get('reset_time');
$result = true;
$lastResetTime = strtotime($user->lastResetTime) ? strtotime($user->lastResetTime) : 0;
$hoursSinceLastReset = (strtotime(JFactory::getDate()->toSql()) - $lastResetTime) / 3600;
if ($hoursSinceLastReset > $resetHours)
{
// If it's been long enough, start a new reset count
$user->lastResetTime = JFactory::getDate()->toSql();
$user->resetCount = 1;
}
elseif ($user->resetCount < $maxCount)
{
// If we are under the max count, just increment the counter
++$user->resetCount;
}
else
{
// At this point, we know we have exceeded the maximum resets for the time period
$result = false;
}
return $result;
}
}
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