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1367
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Luisehahne
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<?php
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/**
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*
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* @category backend
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* @package login
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* @author WebsiteBaker Project
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* @copyright 2004-2009, Ryan Djurovich
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* @copyright 2009-2011, Website Baker 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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1374
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Luisehahne
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* @requirements PHP 5.2.2 and higher
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1367
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Luisehahne
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* @version $Id$
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* @filesource $HeadURL$
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* @lastmodified $Date$
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*
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*/
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1420
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Luisehahne
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// Must include code to stop this file being access directly
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if(defined('WB_PATH') == false) { die("Cannot access this file directly"); }
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1367
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Luisehahne
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define('LOGIN_CLASS_LOADED', true);
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// Load the other required class files if they are not already loaded
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require_once(WB_PATH."/framework/class.admin.php");
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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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1378
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Luisehahne
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public function __construct($config_array) {
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1367
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Luisehahne
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// Get language vars
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global $MESSAGE, $database;
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1378
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Luisehahne
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parent::__construct();
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1367
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Luisehahne
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// Get configuration values
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$this->USERS_TABLE = $config_array['USERS_TABLE'];
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$this->GROUPS_TABLE = $config_array['GROUPS_TABLE'];
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$this->username_fieldname = $config_array['USERNAME_FIELDNAME'];
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$this->password_fieldname = $config_array['PASSWORD_FIELDNAME'];
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$this->remember_me_option = $config_array['REMEMBER_ME_OPTION'];
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$this->max_attemps = $config_array['MAX_ATTEMPS'];
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$this->warning_url = $config_array['WARNING_URL'];
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$this->login_url = $config_array['LOGIN_URL'];
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$this->template_dir = $config_array['TEMPLATE_DIR'];
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$this->template_file = $config_array['TEMPLATE_FILE'];
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$this->frontend = $config_array['FRONTEND'];
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$this->forgotten_details_app = $config_array['FORGOTTEN_DETAILS_APP'];
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$this->max_username_len = $config_array['MAX_USERNAME_LEN'];
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$this->max_password_len = $config_array['MAX_PASSWORD_LEN'];
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if (array_key_exists('REDIRECT_URL',$config_array))
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$this->redirect_url = $config_array['REDIRECT_URL'];
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else
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$this->redirect_url = '';
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// Get the supplied username and password
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if ($this->get_post('username_fieldname') != ''){
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$username_fieldname = $this->get_post('username_fieldname');
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$password_fieldname = $this->get_post('password_fieldname');
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} else {
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$username_fieldname = 'username';
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$password_fieldname = 'password';
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}
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$this->username = htmlspecialchars (strtolower($this->get_post($username_fieldname)), ENT_QUOTES);
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$this->password = $this->get_post($password_fieldname);
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// Figure out if the "remember me" option has been checked
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if($this->get_post('remember') == 'true') {
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$this->remember = $this->get_post('remember');
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} else {
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$this->remember = false;
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}
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// Get the length of the supplied username and password
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if($this->get_post($username_fieldname) != '') {
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$this->username_len = strlen($this->username);
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$this->password_len = strlen($this->password);
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}
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// If the url is blank, set it to the default url
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$this->url = $this->get_post('url');
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if ($this->redirect_url!='') {
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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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$this->url = $config_array['DEFAULT_URL'];
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}
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if($this->is_authenticated() == true) {
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// User already logged-in, so redirect to default url
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header('Location: '.$this->url);
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exit();
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} elseif($this->is_remembered() == true) {
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// User has been "remembered"
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// Get the users password
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// $database = new database();
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$query_details = $database->query("SELECT * FROM ".$this->USERS_TABLE." WHERE user_id = '".$this->get_safe_remember_key()."' LIMIT 1");
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$fetch_details = $query_details->fetchRow();
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$this->username = $fetch_details['username'];
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$this->password = $fetch_details['password'];
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// Check if the user exists (authenticate them)
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if($this->authenticate()) {
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// Authentication successful
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header("Location: ".$this->url);
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exit(0);
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} else {
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$this->message = $MESSAGE['LOGIN']['AUTHENTICATION_FAILED'];
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$this->increase_attemps();
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}
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} elseif($this->username == '' AND $this->password == '') {
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$this->message = $MESSAGE['LOGIN']['BOTH_BLANK'];
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$this->increase_attemps();
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} elseif($this->username == '') {
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$this->message = $MESSAGE['LOGIN']['USERNAME_BLANK'];
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$this->increase_attemps();
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} elseif($this->password == '') {
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$this->message = $MESSAGE['LOGIN']['PASSWORD_BLANK'];
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$this->increase_attemps();
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} elseif($this->username_len < $config_array['MIN_USERNAME_LEN']) {
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$this->message = $MESSAGE['LOGIN']['USERNAME_TOO_SHORT'];
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$this->increase_attemps();
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} elseif($this->password_len < $config_array['MIN_PASSWORD_LEN']) {
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$this->message = $MESSAGE['LOGIN']['PASSWORD_TOO_SHORT'];
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$this->increase_attemps();
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} elseif($this->username_len > $config_array['MAX_USERNAME_LEN']) {
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$this->message = $MESSAGE['LOGIN']['USERNAME_TOO_LONG'];
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$this->increase_attemps();
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} elseif($this->password_len > $config_array['MAX_PASSWORD_LEN']) {
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$this->message = $MESSAGE['LOGIN']['PASSWORD_TOO_LONG'];
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$this->increase_attemps();
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} else {
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// Check if the user exists (authenticate them)
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$this->password = md5($this->password);
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if($this->authenticate()) {
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// Authentication successful
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//echo $this->url;exit();
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header("Location: ".$this->url);
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exit(0);
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} else {
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$this->message = $MESSAGE['LOGIN']['AUTHENTICATION_FAILED'];
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$this->increase_attemps();
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}
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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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global $database;
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// Get user information
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// $database = new database();
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// $query = 'SELECT * FROM `'.$this->USERS_TABLE.'` WHERE MD5(`username`) = "'.md5($this->username).'" AND `password` = "'.$this->password.'" AND `active` = 1';
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$loginname = ( preg_match('/[\;\=\&\|\<\> ]/',$this->username) ? '' : $this->username );
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$query = 'SELECT * FROM `'.$this->USERS_TABLE.'` WHERE `username` = "'.$loginname.'" AND `password` = "'.$this->password.'" AND `active` = 1';
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$results = $database->query($query);
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$results_array = $results->fetchRow();
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$num_rows = $results->numRows();
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if($num_rows == 1) {
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$user_id = $results_array['user_id'];
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$this->user_id = $user_id;
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$_SESSION['USER_ID'] = $user_id;
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$_SESSION['GROUP_ID'] = $results_array['group_id'];
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$_SESSION['GROUPS_ID'] = $results_array['groups_id'];
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$_SESSION['USERNAME'] = $results_array['username'];
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$_SESSION['DISPLAY_NAME'] = $results_array['display_name'];
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$_SESSION['EMAIL'] = $results_array['email'];
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$_SESSION['HOME_FOLDER'] = $results_array['home_folder'];
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// Run remember function if needed
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if($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($results_array['language'] != '') {
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$_SESSION['LANGUAGE'] = $results_array['language'];
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}
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// Set timezone
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if($results_array['timezone'] != '-72000') {
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$_SESSION['TIMEZONE'] = $results_array['timezone'];
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} else {
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// Set a session var so apps can tell user is using default tz
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$_SESSION['USE_DEFAULT_TIMEZONE'] = true;
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}
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// Set date format
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if($results_array['date_format'] != '') {
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$_SESSION['DATE_FORMAT'] = $results_array['date_format'];
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} else {
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| 180 |
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// Set a session var so apps can tell user is using default date format
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$_SESSION['USE_DEFAULT_DATE_FORMAT'] = true;
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}
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| 183 |
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// Set time format
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| 184 |
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if($results_array['time_format'] != '') {
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$_SESSION['TIME_FORMAT'] = $results_array['time_format'];
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} else {
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| 187 |
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// Set a session var so apps can tell user is using default time format
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| 188 |
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$_SESSION['USE_DEFAULT_TIME_FORMAT'] = true;
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}
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// Get group information
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$_SESSION['SYSTEM_PERMISSIONS'] = array();
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$_SESSION['MODULE_PERMISSIONS'] = array();
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| 194 |
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$_SESSION['TEMPLATE_PERMISSIONS'] = array();
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| 195 |
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$_SESSION['GROUP_NAME'] = array();
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| 197 |
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$first_group = true;
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foreach (explode(",", $this->get_session('GROUPS_ID')) as $cur_group_id)
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{
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| 200 |
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$query = "SELECT * FROM ".$this->GROUPS_TABLE." WHERE group_id = '".$cur_group_id."'";
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| 201 |
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$results = $database->query($query);
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| 202 |
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$results_array = $results->fetchRow();
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| 203 |
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$_SESSION['GROUP_NAME'][$cur_group_id] = $results_array['name'];
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| 204 |
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// Set system permissions
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| 205 |
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if($results_array['system_permissions'] != '') {
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| 206 |
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$_SESSION['SYSTEM_PERMISSIONS'] = array_merge($_SESSION['SYSTEM_PERMISSIONS'], explode(',', $results_array['system_permissions']));
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| 207 |
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}
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| 208 |
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// Set module permissions
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| 209 |
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if($results_array['module_permissions'] != '') {
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| 210 |
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if ($first_group) {
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| 211 |
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$_SESSION['MODULE_PERMISSIONS'] = explode(',', $results_array['module_permissions']);
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| 212 |
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} else {
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| 213 |
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$_SESSION['MODULE_PERMISSIONS'] = array_intersect($_SESSION['MODULE_PERMISSIONS'], explode(',', $results_array['module_permissions']));
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| 214 |
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}
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| 215 |
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}
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| 216 |
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// Set template permissions
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| 217 |
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if($results_array['template_permissions'] != '') {
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| 218 |
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if ($first_group) {
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| 219 |
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$_SESSION['TEMPLATE_PERMISSIONS'] = explode(',', $results_array['template_permissions']);
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| 220 |
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} else {
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| 221 |
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$_SESSION['TEMPLATE_PERMISSIONS'] = array_intersect($_SESSION['TEMPLATE_PERMISSIONS'], explode(',', $results_array['template_permissions']));
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| 222 |
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}
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| 223 |
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}
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| 224 |
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$first_group = false;
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| 225 |
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}
|
| 226 |
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| 227 |
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// Update the users table with current ip and timestamp
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| 228 |
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$get_ts = time();
|
| 229 |
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$get_ip = $_SERVER['REMOTE_ADDR'];
|
| 230 |
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$query = "UPDATE ".$this->USERS_TABLE." SET login_when = '$get_ts', login_ip = '$get_ip' WHERE user_id = '$user_id'";
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| 231 |
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$database->query($query);
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| 232 |
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}else {
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| 233 |
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$num_rows = 0;
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| 234 |
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}
|
| 235 |
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// Return if the user exists or not
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| 236 |
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return $num_rows;
|
| 237 |
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}
|
| 238 |
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| 239 |
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// Increase the count for login attemps
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| 240 |
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function increase_attemps() {
|
| 241 |
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if(!isset($_SESSION['ATTEMPS'])) {
|
| 242 |
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$_SESSION['ATTEMPS'] = 0;
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| 243 |
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} else {
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| 244 |
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$_SESSION['ATTEMPS'] = $this->get_session('ATTEMPS')+1;
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| 245 |
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}
|
| 246 |
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$this->display_login();
|
| 247 |
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}
|
| 248 |
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|
| 249 |
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// Function to set a "remembering" cookie for the user
|
| 250 |
|
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function remember($user_id) {
|
| 251 |
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global $database;
|
| 252 |
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$remember_key = '';
|
| 253 |
|
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// Generate user id to append to the remember key
|
| 254 |
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$length = 11-strlen($user_id);
|
| 255 |
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if($length > 0) {
|
| 256 |
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for($i = 1; $i <= $length; $i++) {
|
| 257 |
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$remember_key .= '0';
|
| 258 |
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}
|
| 259 |
|
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}
|
| 260 |
|
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// Generate remember key
|
| 261 |
|
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$remember_key .= $user_id.'_';
|
| 262 |
|
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$salt = "abchefghjkmnpqrstuvwxyz0123456789";
|
| 263 |
|
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srand((double)microtime()*1000000);
|
| 264 |
|
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$i = 0;
|
| 265 |
|
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while ($i <= 10) {
|
| 266 |
|
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$num = rand() % 33;
|
| 267 |
|
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$tmp = substr($salt, $num, 1);
|
| 268 |
|
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$remember_key = $remember_key . $tmp;
|
| 269 |
|
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$i++;
|
| 270 |
|
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}
|
| 271 |
|
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$remember_key = $remember_key;
|
| 272 |
|
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// Update the remember key in the db
|
| 273 |
|
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// $database = new database();
|
| 274 |
|
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$database->query("UPDATE ".$this->USERS_TABLE." SET remember_key = '$remember_key' WHERE user_id = '$user_id' LIMIT 1");
|
| 275 |
|
|
if($database->is_error()) {
|
| 276 |
|
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return false;
|
| 277 |
|
|
} else {
|
| 278 |
|
|
// Workout options for the cookie
|
| 279 |
|
|
$cookie_name = 'REMEMBER_KEY';
|
| 280 |
|
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$cookie_value = $remember_key;
|
| 281 |
|
|
$cookie_expire = time()+60*60*24*30;
|
| 282 |
|
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// Set the cookie
|
| 283 |
|
|
if(setcookie($cookie_name, $cookie_value, $cookie_expire, '/')) {
|
| 284 |
|
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return true;
|
| 285 |
|
|
} else {
|
| 286 |
|
|
return false;
|
| 287 |
|
|
}
|
| 288 |
|
|
}
|
| 289 |
|
|
}
|
| 290 |
|
|
|
| 291 |
|
|
// Function to check if a user has been remembered
|
| 292 |
|
|
function is_remembered()
|
| 293 |
|
|
{
|
| 294 |
|
|
global $database;
|
| 295 |
|
|
// add if get_safe_remember_key not empty
|
| 296 |
|
|
if(isset($_COOKIE['REMEMBER_KEY']) && ($_COOKIE['REMEMBER_KEY'] != '') && ($this->get_safe_remember_key() <> '' ) )
|
| 297 |
|
|
{
|
| 298 |
|
|
// Check if the remember key is correct
|
| 299 |
|
|
// $database = new database();
|
| 300 |
|
|
$sql = "SELECT `user_id` FROM `" . $this->USERS_TABLE . "` WHERE `remember_key` = '";
|
| 301 |
|
|
$sql .= $this->get_safe_remember_key() . "' LIMIT 1";
|
| 302 |
|
|
$check_query = $database->query($sql);
|
| 303 |
|
|
|
| 304 |
|
|
if($check_query->numRows() > 0)
|
| 305 |
|
|
{
|
| 306 |
|
|
$check_fetch = $check_query->fetchRow();
|
| 307 |
|
|
$user_id = $check_fetch['user_id'];
|
| 308 |
|
|
// Check the remember key prefix
|
| 309 |
|
|
$remember_key_prefix = '';
|
| 310 |
|
|
$length = 11-strlen($user_id);
|
| 311 |
|
|
if($length > 0)
|
| 312 |
|
|
{
|
| 313 |
|
|
for($i = 1; $i <= $length; $i++)
|
| 314 |
|
|
{
|
| 315 |
|
|
$remember_key_prefix .= '0';
|
| 316 |
|
|
}
|
| 317 |
|
|
}
|
| 318 |
|
|
$remember_key_prefix .= $user_id.'_';
|
| 319 |
|
|
$length = strlen($remember_key_prefix);
|
| 320 |
|
|
if(substr($_COOKIE['REMEMBER_KEY'], 0, $length) == $remember_key_prefix)
|
| 321 |
|
|
{
|
| 322 |
|
|
return true;
|
| 323 |
|
|
} else {
|
| 324 |
|
|
return false;
|
| 325 |
|
|
}
|
| 326 |
|
|
} else {
|
| 327 |
|
|
return false;
|
| 328 |
|
|
}
|
| 329 |
|
|
} else {
|
| 330 |
|
|
return false;
|
| 331 |
|
|
}
|
| 332 |
|
|
}
|
| 333 |
|
|
|
| 334 |
|
|
// Display the login screen
|
| 335 |
|
|
function display_login() {
|
| 336 |
|
|
// Get language vars
|
| 337 |
|
|
global $MESSAGE;
|
| 338 |
|
|
global $MENU;
|
| 339 |
|
|
global $TEXT;
|
| 340 |
|
|
// If attemps more than allowed, warn the user
|
| 341 |
|
|
if($this->get_session('ATTEMPS') > $this->max_attemps) {
|
| 342 |
|
|
$this->warn();
|
| 343 |
|
|
}
|
| 344 |
|
|
// Show the login form
|
| 345 |
|
|
if($this->frontend != true) {
|
| 346 |
|
|
require_once(WB_PATH.'/include/phplib/template.inc');
|
| 347 |
|
|
$template = new Template($this->template_dir);
|
| 348 |
|
|
$template->set_file('page', $this->template_file);
|
| 349 |
|
|
$template->set_block('page', 'mainBlock', 'main');
|
| 350 |
|
|
if($this->remember_me_option != true) {
|
| 351 |
|
|
$template->set_var('DISPLAY_REMEMBER_ME', 'display: none;');
|
| 352 |
|
|
} else {
|
| 353 |
|
|
$template->set_var('DISPLAY_REMEMBER_ME', '');
|
| 354 |
|
|
}
|
| 355 |
|
|
$template->set_var(array(
|
| 356 |
|
|
'ACTION_URL' => $this->login_url,
|
| 357 |
|
|
'ATTEMPS' => $this->get_session('ATTEMPS'),
|
| 358 |
|
|
'USERNAME' => $this->username,
|
| 359 |
|
|
'USERNAME_FIELDNAME' => $this->username_fieldname,
|
| 360 |
|
|
'PASSWORD_FIELDNAME' => $this->password_fieldname,
|
| 361 |
|
|
'MESSAGE' => $this->message,
|
| 362 |
|
|
'INTERFACE_DIR_URL' => ADMIN_URL.'/interface',
|
| 363 |
|
|
'MAX_USERNAME_LEN' => $this->max_username_len,
|
| 364 |
|
|
'MAX_PASSWORD_LEN' => $this->max_password_len,
|
| 365 |
|
|
'WB_URL' => WB_URL,
|
| 366 |
|
|
'THEME_URL' => THEME_URL,
|
| 367 |
|
|
'VERSION' => VERSION,
|
| 368 |
|
|
'REVISION' => REVISION,
|
| 369 |
|
|
'LANGUAGE' => strtolower(LANGUAGE),
|
| 370 |
|
|
'FORGOTTEN_DETAILS_APP' => $this->forgotten_details_app,
|
| 371 |
|
|
'TEXT_FORGOTTEN_DETAILS' => $TEXT['FORGOTTEN_DETAILS'],
|
| 372 |
|
|
'TEXT_USERNAME' => $TEXT['USERNAME'],
|
| 373 |
|
|
'TEXT_PASSWORD' => $TEXT['PASSWORD'],
|
| 374 |
|
|
'TEXT_REMEMBER_ME' => $TEXT['REMEMBER_ME'],
|
| 375 |
|
|
'TEXT_LOGIN' => $TEXT['LOGIN'],
|
| 376 |
|
|
'TEXT_HOME' => $TEXT['HOME'],
|
| 377 |
|
|
'PAGES_DIRECTORY' => PAGES_DIRECTORY,
|
| 378 |
|
|
'SECTION_LOGIN' => $MENU['LOGIN']
|
| 379 |
|
|
)
|
| 380 |
|
|
);
|
| 381 |
|
|
if(defined('DEFAULT_CHARSET')) {
|
| 382 |
|
|
$charset=DEFAULT_CHARSET;
|
| 383 |
|
|
} else {
|
| 384 |
|
|
$charset='utf-8';
|
| 385 |
|
|
}
|
| 386 |
|
|
|
| 387 |
|
|
$template->set_var('CHARSET', $charset);
|
| 388 |
|
|
|
| 389 |
|
|
|
| 390 |
|
|
$template->parse('main', 'mainBlock', false);
|
| 391 |
|
|
$template->pparse('output', 'page');
|
| 392 |
|
|
}
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
// sanities the REMEMBER_KEY cookie to avoid SQL injection
|
| 396 |
|
|
function get_safe_remember_key() {
|
| 397 |
|
|
if (!((strlen($_COOKIE['REMEMBER_KEY']) == 23) && (substr($_COOKIE['REMEMBER_KEY'], 11, 1) == '_'))) return '';
|
| 398 |
|
|
// create a clean cookie (XXXXXXXXXXX_YYYYYYYYYYY) where X:= numeric, Y:= hash
|
| 399 |
|
|
$clean_cookie = sprintf('%011d', (int) substr($_COOKIE['REMEMBER_KEY'], 0, 11)) . substr($_COOKIE['REMEMBER_KEY'], 11);
|
| 400 |
|
|
return ($clean_cookie == $_COOKIE['REMEMBER_KEY']) ? $this->add_slashes($clean_cookie) : '';
|
| 401 |
|
|
}
|
| 402 |
|
|
|
| 403 |
|
|
// Warn user that they have had to many login attemps
|
| 404 |
|
|
function warn() {
|
| 405 |
|
|
header('Location: '.$this->warning_url);
|
| 406 |
|
|
exit(0);
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
}
|
| 410 |
|
|
|
| 411 |
239
|
stefan
|
?>
|