__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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<?php
/**
* Code related to the lastlogins-loggedin.php interface.
*
* PHP version 5
*
* @category Library
* @package Sucuri
* @subpackage SucuriScanner
* @author Daniel Cid <dcid@sucuri.net>
* @copyright 2010-2018 Sucuri Inc.
* @license https://www.gnu.org/licenses/gpl-2.0.txt GPL2
* @link https://wordpress.org/plugins/sucuri-scanner
*/
if (!defined('SUCURISCAN_INIT') || SUCURISCAN_INIT !== true) {
if (!headers_sent()) {
/* Report invalid access if possible. */
header('HTTP/1.1 403 Forbidden');
}
exit(1);
}
/**
* Print a list of all the registered users that are currently in session.
*
* @return string The HTML code displaying a list of all the users logged in at the moment.
*/
function sucuriscan_loggedin_users_panel()
{
// Get user logged in list.
$params = array(
'LoggedInUsers.List' => '',
'LoggedInUsers.Total' => 0,
);
$logged_in_users = sucuriscan_get_online_users(true);
if (is_array($logged_in_users) && !empty($logged_in_users)) {
$params['LoggedInUsers.Total'] = count($logged_in_users);
foreach ((array) $logged_in_users as $logged_in_user) {
$logged_in_user['last_activity_datetime'] = SucuriScan::datetime($logged_in_user['last_activity']);
$logged_in_user['user_registered_datetime'] = SucuriScan::datetime(strtotime($logged_in_user['user_registered']));
$params['LoggedInUsers.List'] .= SucuriScanTemplate::getSnippet(
'lastlogins-loggedin',
array(
'LoggedInUsers.Id' => $logged_in_user['user_id'],
'LoggedInUsers.UserURL' => SucuriScan::adminURL('user-edit.php?user_id=' . $logged_in_user['user_id']),
'LoggedInUsers.UserLogin' => $logged_in_user['user_login'],
'LoggedInUsers.UserEmail' => $logged_in_user['user_email'],
'LoggedInUsers.LastActivity' => $logged_in_user['last_activity_datetime'],
'LoggedInUsers.Registered' => $logged_in_user['user_registered_datetime'],
'LoggedInUsers.RemoteAddr' => $logged_in_user['remote_addr'],
)
);
}
}
return SucuriScanTemplate::getSection('lastlogins-loggedin', $params);
}
/**
* Get a list of all the registered users that are currently in session.
*
* @param bool $add_current_user Whether the current user should be added to the list or not.
* @return array List of registered users currently in session.
*/
function sucuriscan_get_online_users($add_current_user = false)
{
$users = array();
if (SucuriScan::isMultiSite()) {
$users = get_site_transient('online_users');
} else {
$users = get_transient('online_users');
}
// If not online users but current user is logged in, add it to the list.
if (empty($users) && $add_current_user) {
$current_user = wp_get_current_user();
if ($current_user->ID > 0) {
sucuriscan_set_online_user($current_user->user_login, $current_user);
return sucuriscan_get_online_users();
}
}
return $users;
}
/**
* Update the list of the registered users currently in session.
*
* Useful when you are removing users and need the list of the remaining users.
*
* @param array $logged_in_users List of registered users currently in session.
* @return bool Either TRUE or FALSE representing the success or fail of the operation.
*/
function sucuriscan_save_online_users($logged_in_users = array())
{
$expiration = 30 * 60;
if (SucuriScan::isMultiSite()) {
return set_site_transient('online_users', $logged_in_users, $expiration);
} else {
return set_transient('online_users', $logged_in_users, $expiration);
}
}
if (!function_exists('sucuriscan_unset_online_user_on_logout')) {
/**
* Remove a logged in user from the list.
*
* @return void
*/
function sucuriscan_unset_online_user_on_logout()
{
$remote_addr = SucuriScan::getRemoteAddr();
$current_user = wp_get_current_user();
$user_id = $current_user->ID;
sucuriscan_unset_online_user($user_id, $remote_addr);
}
add_action('wp_logout', 'sucuriscan_unset_online_user_on_logout');
}
/**
* Remove a logged in user from the list of registered users in session using
* the user identifier and the ip address of the last computer used to login.
*
* @param int $user_id User ID of the account that will be logged out.
* @param string $remote_addr IP address of the computer where the user logged in.
* @return bool True on success, false otherwise.
*/
function sucuriscan_unset_online_user($user_id = 0, $remote_addr = '')
{
$logged_in_users = sucuriscan_get_online_users();
// Remove the specified user identifier from the list.
if (is_array($logged_in_users) && !empty($logged_in_users)) {
foreach ($logged_in_users as $i => $user) {
if ($user['user_id'] == $user_id
&& strcmp($user['remote_addr'], $remote_addr) == 0
) {
unset($logged_in_users[ $i ]);
break;
}
}
}
return sucuriscan_save_online_users($logged_in_users);
}
if (!function_exists('sucuriscan_set_online_user')) {
/**
* Add an user account to the list of registered users in session.
*
* @param string $user_login The name of the user account that just logged in the site.
* @param bool $user The WordPress object containing all the information associated to the user.
* @return void
*/
function sucuriscan_set_online_user($user_login = '', $user = false)
{
if (!$user) {
return;
}
/* get logged in user information */
$current_user = ($user instanceof WP_User) ? $user : wp_get_current_user();
$current_user_id = $current_user->ID;
$remote_addr = SucuriScan::getRemoteAddr();
$current_time = current_time('timestamp');
$logged_in_users = sucuriscan_get_online_users();
/* build the dataset for the transient variable */
$current_user_info = array(
'user_id' => $current_user_id,
'user_login' => $current_user->user_login,
'user_email' => $current_user->user_email,
'user_registered' => $current_user->user_registered,
'last_activity' => $current_time,
'remote_addr' => $remote_addr,
);
/* no previous data, no need to merge, override */
if (!is_array($logged_in_users) || empty($logged_in_users)) {
$logged_in_users = array( $current_user_info );
sucuriscan_save_online_users($logged_in_users);
return;
}
$item_index = 0;
$do_nothing = false;
$update_existing = false;
/* update user metadata if the session already exists */
foreach ($logged_in_users as $i => $user) {
if ($user['user_id'] == $current_user_id
&& strcmp($user['remote_addr'], $remote_addr) == 0
) {
if ($user['last_activity'] < ($current_time - (15 * 60))) {
$update_existing = true;
$item_index = $i;
break;
} else {
$do_nothing = true;
break;
}
}
}
if ($do_nothing) {
return;
}
if ($update_existing) {
$logged_in_users[ $item_index ] = $current_user_info;
sucuriscan_save_online_users($logged_in_users);
return;
}
$logged_in_users[] = $current_user_info;
sucuriscan_save_online_users($logged_in_users);
}
add_action('wp_login', 'sucuriscan_set_online_user', 50, 2);
}