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<?php
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/**
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*
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* @category framework
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* @package backend login
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* @author Ryan Djurovich (2004-2009), WebsiteBaker Project
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* @copyright 2009-2012, WebsiteBaker Org. e.V.
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* @link http://www.websitebaker2.org/
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* @license http://www.gnu.org/licenses/gpl.html
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* @platform WebsiteBaker 2.8.x
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* @requirements PHP 5.2.2 and higher
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* @version $Id: class.Login.php 2125 2015-06-17 18:42:26Z darkviper $
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* @filesource $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/class.Login.php $
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* @lastmodified $Date: 2015-06-17 20:42:26 +0200 (Wed, 17 Jun 2015) $
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*
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*/
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define('LOGIN_CLASS_LOADED', true);
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// Get WB version
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require_once(ADMIN_PATH.'/interface/version.php');
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class Login extends admin {
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const PASS_CHARS = '\w!#$%&*+\-.:=?@\|';
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const USER_CHARS = 'a-z0-9&\-.=@_';
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protected $oReg = null;
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protected $oDb = null;
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protected $oTrans = null;
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protected $message = '';
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public function __construct($config_array)
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{
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$this->oReg = WbAdaptor::getInstance();
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$this->oDb = $this->oReg->Db;
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$this->oTrans = $this->oReg->Trans;
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parent::__construct();
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// Get configuration values
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while(list($key, $value) = each($config_array)) {
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$this->{(strtolower($key))} = $value;
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}
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// calculate redirect URL
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if(!isset($this->redirect_url)) { $this->redirect_url = ''; }
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$aServerUrl = $this->mb_parse_url($this->oReg->AppUrl);
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$sServerUrl = $_SERVER['SERVER_NAME'];
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$sServerScheme =
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isset($_SERVER['REQUEST_SCHEME'])
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? $_SERVER['REQUEST_SCHEME']
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: isset($aServerUrl['scheme']) ? $aServerUrl['scheme'] : ' http';
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$sServerPath = $_SERVER['SCRIPT_NAME'];
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// If the url is blank, set it to the default url
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$this->url = $this->get_post('url');
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if (preg_match('/%0d|%0a|\s/i', $this->url)) {
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throw new Exception('Warning: possible intruder detected on login');
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}
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$aUrl = $this->mb_parse_url( $this->url );
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$this->url =
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isset($aRedirecthUrl['host']) &&($sServerUrl == $aUrl['host'])
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? $this->url
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: $this->oReg->AcpUrl.'start/index.php';
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if ($this->redirect_url!='') {
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$aRedirecthUrl = $this->mb_parse_url( $this->redirect_url );
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$this->redirect_url =
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isset($aRedirecthUrl['host']) &&($sServerUrl==$aRedirecthUrl['host'])
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? $this->redirect_url
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: $sServerScheme.'://'.$sServerUrl;
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$this->url = $this->redirect_url;
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}
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if(strlen($this->url) < 2) {
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$aDefaultUrl = $this->mb_parse_url( $this->default_url );
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$this->default_url =
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isset($aDefaultUrl['host']) &&($sServerUrl==$aDefaultUrl['host'])
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? $this->default_url
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: $sServerScheme.'://'.$sServerUrl;
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$this->url = $this->default_url;
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}
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// get username & password and validate it
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$username_fieldname = (string)$this->get_post('username_fieldname');
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$username_fieldname = (preg_match('/^_?[a-z][\w]+$/i', $username_fieldname) ? $username_fieldname : 'username');
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$sUsername = strtolower(trim((string)$this->get_post($username_fieldname)));
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$this->username = (preg_match(
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'/^['.self::USER_CHARS.']{'.$this->min_username_len.','.$this->max_username_len.'}$/is',
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$sUsername
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) ? $sUsername : '');
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$password_fieldname = (string)$this->get_post('password_fieldname');
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$password_fieldname = (preg_match('/^_?[a-z][\w]+$/i', $password_fieldname) ? $password_fieldname : 'password');
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if ($this->username) {
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/** @TODO implement crypting */
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$this->password = md5(trim((string)$this->get_post($password_fieldname)));
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// Figure out if the "remember me" option has been checked
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$this->remember = (@$_POST['remember'] == 'true' ? true : false);
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// try to authenticate
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$bSuccess = false;
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if (!($bSuccess = $this->is_authenticated())) {
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if ($this->is_remembered()) {
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$sql = 'SELECT * FROM `'.$this->oDb->TablePrefix.'users` '
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. 'WHERE `user_id`='.$this->get_safe_remember_key();
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if (($oUsers = $this->oDb->doQuery($sql))) {
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if (($aUser = $oUsers->fetchArray())) {
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$this->username = $aUser['username'];
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$this->password = $aUser['password'];
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// Check if the user exists (authenticate them)
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$bSuccess = $this->authenticate();
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}
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}
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} else {
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// Check if the user exists (authenticate them)
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$bSuccess = $this->authenticate();
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}
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}
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if ($bSuccess) {
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// Authentication successful
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$this->send_header($this->url);
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} else {
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$this->message = $this->oTrans->MESSAGE_LOGIN_AUTHENTICATION_FAILED;
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$this->increase_attemps();
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}
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} else {
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$this->display_login();
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}
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}
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// Authenticate the user (check if they exist in the database)
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function authenticate()
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{
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// Get user information
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$loginname = ( preg_match('/^['.self::USER_CHARS.']+$/s',$this->username) ? $this->username : '0');
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$aSettings = array();
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$aSettings['SYSTEM_PERMISSIONS'] = array();
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$aSettings['MODULE_PERMISSIONS'] = array();
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$aSettings['TEMPLATE_PERMISSIONS'] = array();
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$bRetval = false;
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$sql = 'SELECT * FROM `'.$this->oDb->TablePrefix.'users` '
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. 'WHERE `username`=\''.$this->oDb->escapeString($loginname).'\'';
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if (($oUser = $this->oDb->doQuery($sql))) {
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if (($aUser = $oUser->fetchArray())) {
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if (
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$aUser['password'] == $this->password &&
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$aUser['active'] == 1
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) {
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// valide authentcation !!
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$user_id = $aUser['user_id'];
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$this->user_id = $user_id;
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$aSettings['USER_ID'] = $user_id;
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$aSettings['GROUP_ID'] = $aUser['group_id'];
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$aSettings['GROUPS_ID'] = $aUser['groups_id'];
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$aSettings['USERNAME'] = $aUser['username'];
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$aSettings['DISPLAY_NAME'] = $aUser['display_name'];
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$aSettings['EMAIL'] = $aUser['email'];
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$aSettings['HOME_FOLDER'] = $aUser['home_folder'];
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// Run remember function if needed
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if($this->remember == true) {
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$this->remember($this->user_id);
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}
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// Set language
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if($aUser['language'] != '') {
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$aSettings['LANGUAGE'] = $aUser['language'];
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}
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// Set timezone
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if($aUser['timezone'] != '-72000') {
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$aSettings['TIMEZONE'] = $aUser['timezone'];
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} else {
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// Set a session var so apps can tell user is using default tz
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$aSettings['USE_DEFAULT_TIMEZONE'] = true;
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}
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// Set date format
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if($aUser['date_format'] != '') {
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$aSettings['DATE_FORMAT'] = $aUser['date_format'];
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} else {
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// Set a session var so apps can tell user is using default date format
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$aSettings['USE_DEFAULT_DATE_FORMAT'] = true;
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}
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// Set time format
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if($aUser['time_format'] != '') {
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$aSettings['TIME_FORMAT'] = $aUser['time_format'];
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} else {
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// Set a session var so apps can tell user is using default time format
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$aSettings['USE_DEFAULT_TIME_FORMAT'] = true;
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}
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// Get group information
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$aSettings['GROUP_NAME'] = array();
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$bOnlyAdminGroup = $this->ami_group_member('1') && (sizeof($aGroupsIds) == 1);
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$sql = 'SELECT * FROM `'.$this->oDb->TablePrefix.'groups` '
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. 'WHERE `group_id` IN (\''.$aUser['groups_id'].',0\') '
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. 'ORDER BY `group_id`';
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if (($oGroups = $this->oDb->doQuery($sql))) {
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while (($aGroup = $oGroups->fetchArray())) {
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$aSettings['GROUP_NAME'][$aGroup['group_id']] = $aGroup['name'];
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// collect system_permissions (additively)
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$aSettings['SYSTEM_PERMISSIONS'] = array_merge(
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$aSettings['SYSTEM_PERMISSIONS'],
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explode(',', $aGroup['system_permissions'])
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);
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// collect module_permission (subtractive)
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if (!sizeof($aSettings['MODULE_PERMISSIONS'])) {
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$aSettings['MODULE_PERMISSIONS'] = explode(',', $aGroup['module_permissions']);
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} else {
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$aSettings['MODULE_PERMISSIONS'] = array_intersect(
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$aSettings['MODULE_PERMISSIONS'],
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preg_split('/\s*[,;\|\+]/', $aGroup['module_permissions'], -1, PREG_SPLIT_NO_EMPTY)
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);
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}
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// collect template_permission (subtractive)
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if (!sizeof($aSettings['TEMPLATE_PERMISSIONS'])) {
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$aSettings['TEMPLATE_PERMISSIONS'] = explode(',', $aGroup['template_permissions']);
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} else {
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$aSettings['TEMPLATE_PERMISSIONS'] = array_intersect(
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$aSettings['TEMPLATE_PERMISSIONS'],
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preg_split('/\s*[,;\|\+]/', $aGroup['template_permissions'], -1, PREG_SPLIT_NO_EMPTY)
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);
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}
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}
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}
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// Update the users table with current ip and timestamp
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$sRemoteAddress = @$_SERVER['REMOTE_ADDR'] ?: 'unknown';
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$sql = 'UPDATE `'.$this->oDb->TablePrefix.'users` '
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. 'SET `login_when`='.time().', '
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. '`login_ip`=\''.$sRemoteAddress.'\' '
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. 'WHERE `user_id`=\''.$user_id.'\'';
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$this->oDb->doQuery($sql);
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$bRetval = true;
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}
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}
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}
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// merge settings into $_SESSION and overwrite older one values
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$_SESSION = array_merge($_SESSION, $aSettings);
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// Return if the user exists or not
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return $bRetval;
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}
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// Increase the count for login attemps
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function increase_attemps()
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{
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$_SESSION['ATTEMPS'] = (isset($_SESSION['ATTEMPS']) ? $_SESSION['ATTEMPS']++ : 0);
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$this->display_login();
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}
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// Function to set a "remembering" cookie for the user - removed
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function remember($user_id)
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{
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return true;
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}
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// Function to check if a user has been remembered - removed
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function is_remembered()
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{
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return false;
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}
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// Display the login screen
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function display_login()
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{
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// If attemps more than allowed, warn the user
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if($this->get_session('ATTEMPS') > $this->max_attemps) {
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$this->warn();
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}
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// Show the login form
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if($this->frontend != true) {
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$template = new Template(dirname($this->correct_theme_source($this->template_file)));
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$template->set_file('page', $this->template_file);
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$template->set_block('page', 'mainBlock', 'main');
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$template->set_var('DISPLAY_REMEMBER_ME', ($this->remember_me_option ? '' : 'display: none;'));
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$template->set_var($this->oTrans->getLangArray());
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$template->set_var(
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array(
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'TITLE_LOGOUT' => $this->oTrans->MENU_LOGIN,
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'TITLE_VIEW' => $this->oTrans->TEXT_WEBSITE,
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'SECTION_NAME' => $this->oTrans->MENU_LOGIN,
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'SECTION_LOGIN' => $this->oTrans->MENU_LOGIN,
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'ACTION_URL' => $this->login_url,
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'URL' => $this->default_url,
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'ATTEMPS' => $this->get_session('ATTEMPS'),
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'USERNAME' => $this->username,
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'USERNAME_FIELDNAME' => $this->username_fieldname,
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'PASSWORD_FIELDNAME' => $this->password_fieldname,
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'MESSAGE' => $this->message,
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'WEBSITE_TITLE' => $this->oReg->WebsiteTitle,
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'INTERFACE_DIR_URL' => $this->oReg->AcpUrl.'interface',
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'MAX_USERNAME_LEN' => $this->max_username_len,
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'MAX_PASSWORD_LEN' => $this->max_password_len,
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'ADMIN_URL' => $this->oReg->AcpUrl,
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'WB_URL' => $this->oReg->AppUrl,
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'URL_VIEW' => $this->oReg->AppUrl,
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'THEME_URL' => $this->oReg->ThemeUrl,
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'VERSION' => $this->oReg->Version,
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'SP' => (isset($this->oReg->Sp) ? $this->oReg->Sp : ''),
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'REVISION' => $this->oReg->Revision,
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'LANGUAGE' => strtolower($this->oReg->Language),
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'FORGOTTEN_DETAILS_APP' => $this->forgotten_details_app,
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293
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'PAGES_DIRECTORY' => $this->oReg->PagesDir,
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'LOGIN_DISPLAY_HIDDEN' => !$this->is_authenticated() ? 'hidden' : '',
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'LOGIN_DISPLAY_NONE' => !$this->is_authenticated() ? 'none' : '',
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296
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'LOGIN_LINK' => $_SERVER['SCRIPT_NAME'],
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'LOGIN_ICON' => 'login',
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298
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'START_ICON' => 'blank',
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'URL_HELP' => 'http://wiki.websitebaker.org/',
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)
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);
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$template->set_var('CHARSET', (isset($this->oReg->DefaultCharset) ? $this->oReg->DefaultCharset : 'utf-8'));
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303
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$template->parse('main', 'mainBlock', false);
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304
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$template->pparse('output', 'page');
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305
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}
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306
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}
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307
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// sanities the REMEMBER_KEY cookie to avoid SQL injection
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308
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function get_safe_remember_key()
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309
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{
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310
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$iMatches = 0;
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311
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if (isset($_COOKIE['REMEMBER_KEY'])) {
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312
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$sRetval = preg_replace(
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313
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'/^([0-9]{11})_([0-9a-f]{11})$/i',
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314
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'\1\2',
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315
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$_COOKIE['REMEMBER_KEY'], -1, $iMatches
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316
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);
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317
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}
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318
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return ($iMatches ? $sRetval : '');
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319
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}
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320
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// Warn user that they have had to many login attemps
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321
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function warn()
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322
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{
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323
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$this->send_header($this->warning_url);
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324
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exit;
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325
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}
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326
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327
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}
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