/**
* Helper wrapper method for getRememberCookieData
*
* @return mixed An array of information from an authentication cookie or false if there is no cookie
*
* @see JUserHelper::getRememberCookieData()
* @since 3.4
* @deprecated 4.0
*/
public function getRememberCookieData()
{
return JUserHelper::getRememberCookieData();
}
/**
* This is where we delete any authentication cookie when a user logs out
*
* @param array $options Array holding options (length, timeToExpiration)
*
* @return boolean True on success
*
* @since 3.2
*/
public function onUserAfterLogout($options)
{
$rememberArray = JUserHelper::getRememberCookieData();
// There are no cookies to delete.
if ($rememberArray === false) {
return true;
}
list($privateKey, $series, $cookieName) = $rememberArray;
// Remove the record from the database
$query = $this->db->getQuery(true);
$query->delete('#__user_keys')->where($this->db->quoteName('uastring') . ' = ' . $this->db->quote($cookieName))->where($this->db->quoteName('user_id') . ' = ' . $this->db->quote($options['username']));
$this->db->setQuery($query)->execute();
// Destroy the cookie
$this->app->input->cookie->set($cookieName, false, time() - 42000, $this->app->get('cookie_path'), $this->app->get('cookie_domain'));
return true;
}
/**
* This method should handle any authentication and report back to the subject
*
* @param array $credentials Array holding the user credentials
* @param array $options Array of extra options
* @param object &$response Authentication response object
*
* @return boolean
*
* @since 3.2
*/
public function onUserAuthenticate($credentials, $options, &$response)
{
// No remember me for admin
if ($this->app->isAdmin()) {
return false;
}
JLoader::register('JAuthentication', JPATH_LIBRARIES . '/joomla/user/authentication.php');
$response->type = 'Cookie';
// We need to validate the cookie data because there may be no Remember Me plugin to do it.
// Create the cookie name and data.
$rememberArray = JUserHelper::getRememberCookieData();
if ($rememberArray == false) {
return false;
}
list($privateKey, $series, $uastring) = $rememberArray;
// Find the matching record if it exists.
$query = $this->db->getQuery(true)->select($this->db->quoteName(array('user_id', 'token', 'series', 'time', 'invalid')))->from($this->db->quoteName('#__user_keys'))->where($this->db->quoteName('series') . ' = ' . $this->db->quote(base64_encode($series)))->where($this->db->quoteName('uastring') . ' = ' . $this->db->quote($uastring))->order($this->db->quoteName('time') . ' DESC');
$results = $this->db->setQuery($query)->loadObjectList();
$countResults = count($results);
if ($countResults !== 1) {
$response->status = JAuthentication::STATUS_FAILURE;
return;
} else {
if (substr($results[0]->token, 0, 4) === '$2y$') {
if (JCrypt::hasStrongPasswordSupport()) {
$match = password_verify($privateKey, $results[0]->token);
}
} else {
if (JCrypt::timingSafeCompare($results[0]->token, $privateKey)) {
$match = true;
}
}
if (empty($match)) {
JUserHelper::invalidateCookie($results[0]->user_id, $uastring);
JLog::add(JText::sprintf('PLG_SYSTEM_REMEMBER_ERROR_LOG_LOGIN_FAILED', $user->username), JLog::WARNING, 'security');
$response->status = JAuthentication::STATUS_FAILURE;
return false;
}
}
// Set cookie params.
if (!empty($options['lifetime']) && !empty($options['length']) && !empty($options['secure'])) {
$response->lifetime = $options['lifetime'];
$response->length = $options['length'];
$response->secure = $options['secure'];
}
// Make sure there really is a user with this name and get the data for the session.
$query = $this->db->getQuery(true)->select($this->db->quoteName(array('id', 'username', 'password')))->from($this->db->quoteName('#__users'))->where($this->db->quoteName('username') . ' = ' . $this->db->quote($credentials['username']));
$result = $this->db->setQuery($query)->loadObject();
if ($result) {
// Bring this in line with the rest of the system
$user = JUser::getInstance($result->id);
$cookieName = JUserHelper::getShortHashedUserAgent();
// If there is no cookie, bail out
if (!$this->app->input->cookie->get($cookieName)) {
return;
}
// Set response data.
$response->username = $result->username;
$response->email = $user->email;
$response->fullname = $user->name;
$response->password = $result->password;
$response->language = $user->getParam('language');
// Set response status.
$response->status = JAuthentication::STATUS_SUCCESS;
$response->error_message = '';
} else {
$response->status = JAuthentication::STATUS_FAILURE;
$response->error_message = JText::_('JGLOBAL_AUTH_NO_USER');
}
}
/**
* Remember me method to run onAfterInitialise
*
* @return boolean
*
* @since 1.5
* @throws InvalidArgumentException
*/
public function onAfterInitialise()
{
// No remember me for admin
if ($this->app->isAdmin()) {
return false;
}
$user = JFactory::getUser();
$this->app->rememberCookieLifetime = $this->lifetime;
$this->app->rememberCookieSecure = $this->secure;
$this->app->rememberCookieLength = $this->length;
// Check for a cookie
if ($user->get('guest') == 1) {
// Create the cookie name and data
$rememberArray = JUserHelper::getRememberCookieData();
if ($rememberArray !== false) {
if (count($rememberArray) != 3) {
// Destroy the cookie in the browser.
$this->app->input->cookie->set(end($rememberArray), false, time() - 42000, $this->app->get('cookie_path'), $this->app->get('cookie_domain'));
JLog::add('Invalid cookie detected.', JLog::WARNING, 'error');
return false;
}
list($privateKey, $series, $uastring) = $rememberArray;
if (!JUserHelper::clearExpiredTokens($this)) {
JLog::add('Error in deleting expired cookie tokens.', JLog::WARNING, 'error');
}
// Find the matching record if it exists
$query = $this->db->getQuery(true)->select($this->db->quoteName(array('user_id', 'token', 'series', 'time', 'invalid')))->from($this->db->quoteName('#__user_keys'))->where($this->db->quoteName('series') . ' = ' . $this->db->quote(base64_encode($series)))->where($this->db->quoteName('uastring') . ' = ' . $this->db->quote($uastring))->order($this->db->quoteName('time') . ' DESC');
$results = $this->db->setQuery($query)->loadObjectList();
$countResults = count($results);
// We have a user but a cookie that is not in the database, or it is invalid. This is a possible attack, so invalidate everything.
if (($countResults === 0 || $results[0]->invalid != 0) && !empty($results[0]->user_id)) {
JUserHelper::invalidateCookie($results[0]->user_id, $uastring);
JLog::add(JText::sprintf('PLG_SYSTEM_REMEMBER_ERROR_LOG_INVALIDATED_COOKIES', $user->username), JLog::WARNING, 'security');
// Possibly e-mail user and admin here.
return false;
}
// We have a user with one cookie with a valid series and a corresponding record in the database.
if ($countResults === 1) {
if (!JCrypt::timingSafeCompare($results[0]->token, $privateKey)) {
JUserHelper::invalidateCookie($results[0]->user_id, $uastring);
JLog::add(JText::sprintf('PLG_SYSTEM_REMEMBER_ERROR_LOG_LOGIN_FAILED', $user->username), JLog::WARNING, 'security');
return false;
}
// Set up the credentials array to pass to onUserAuthenticate
$credentials = array('username' => $results[0]->user_id);
return $this->app->login($credentials, array('silent' => true, 'lifetime' => $this->lifetime, 'secure' => $this->secure, 'length' => $this->length));
}
}
}
return false;
}
