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<?php
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/*
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*
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* About WebsiteBaker
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*
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* Website Baker is a PHP-based Content Management System (CMS)
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* designed with one goal in mind: to enable its users to produce websites
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* with ease.
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*
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* LICENSE INFORMATION
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*
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* WebsiteBaker is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* WebsiteBaker is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* WebsiteBaker Extra Information
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*
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*
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*/
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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 2009-2010, 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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* @requirements PHP 4.3.4 and higher
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* @version $Id: class.login.php 1269 2010-01-22 22:51:34Z Luisehahne $
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* @filesource $HeadURL: $
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* @lastmodified $Date: $
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*
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*/
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// Stop this file from being accessed directly
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if(!defined('WB_URL')) {
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header('Location: ../index.php');
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exit(0);
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}
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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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class login extends admin {
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function login($config_array) {
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// Get language vars
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global $MESSAGE;
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$this->wb();
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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 = $this->add_slashes(strtolower($this->get_post($username_fieldname)));
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$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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// Get user information
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$database = new database();
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$query = "SELECT * FROM ".$this->USERS_TABLE." WHERE username = '".$this->username."' 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) {
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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'] = $results_array['date_format'];
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} else {
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// Set a session var so apps can tell user is using default date format
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$_SESSION['USE_DEFAULT_DATE_FORMAT'] = true;
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}
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// Set time format
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if($results_array['time_format'] != '') {
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$_SESSION['TIME_FORMAT'] = $results_array['time_format'];
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} else {
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// Set a session var so apps can tell user is using default time format
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$_SESSION['USE_DEFAULT_TIME_FORMAT'] = true;
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}
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// Get group information
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// $query = "SELECT * FROM ".$this->GROUPS_TABLE." WHERE group_id = '".$this->get_session('GROUP_ID')."'";
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// $results = $database->query($query);
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// $results_array = $results->fetchRow();
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// $_SESSION['GROUP_NAME'] = $results_array['name'];
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// // Set system permissions
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// if($results_array['system_permissions'] != '') {
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// $_SESSION['SYSTEM_PERMISSIONS'] = explode(',', $results_array['system_permissions']);
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// } else {
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// $_SESSION['SYSTEM_PERMISSIONS'] = array();
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// }
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// // Set module permissions
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// if($results_array['module_permissions'] != '') {
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// $_SESSION['MODULE_PERMISSIONS'] = explode(',', $results_array['module_permissions']);
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// } else {
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// $_SESSION['MODULE_PERMISSIONS'] = array();
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// }
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// // Set template permissions
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// if($results_array['template_permissions'] != '') {
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// $_SESSION['TEMPLATE_PERMISSIONS'] = explode(',', $results_array['template_permissions']);
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// } else {
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// $_SESSION['TEMPLATE_PERMISSIONS'] = array();
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// }
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$_SESSION['SYSTEM_PERMISSIONS'] = array();
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$_SESSION['MODULE_PERMISSIONS'] = array();
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$_SESSION['TEMPLATE_PERMISSIONS'] = array();
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$_SESSION['GROUP_NAME'] = array();
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$first_group = true;
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foreach (explode(",", $this->get_session('GROUPS_ID')) as $cur_group_id)
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{
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$query = "SELECT * FROM ".$this->GROUPS_TABLE." WHERE group_id = '".$cur_group_id."'";
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$results = $database->query($query);
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$results_array = $results->fetchRow();
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$_SESSION['GROUP_NAME'][$cur_group_id] = $results_array['name'];
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// Set system permissions
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if($results_array['system_permissions'] != '') {
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$_SESSION['SYSTEM_PERMISSIONS'] = array_merge($_SESSION['SYSTEM_PERMISSIONS'], explode(',', $results_array['system_permissions']));
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}
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// Set module permissions
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if($results_array['module_permissions'] != '') {
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if ($first_group) {
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$_SESSION['MODULE_PERMISSIONS'] = explode(',', $results_array['module_permissions']);
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} else {
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$_SESSION['MODULE_PERMISSIONS'] = array_intersect($_SESSION['MODULE_PERMISSIONS'], explode(',', $results_array['module_permissions']));
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}
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}
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// Set template permissions
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if($results_array['template_permissions'] != '') {
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if ($first_group) {
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$_SESSION['TEMPLATE_PERMISSIONS'] = explode(',', $results_array['template_permissions']);
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} else {
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$_SESSION['TEMPLATE_PERMISSIONS'] = array_intersect($_SESSION['TEMPLATE_PERMISSIONS'], explode(',', $results_array['template_permissions']));
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}
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}
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$first_group = false;
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}
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// Update the users table with current ip and timestamp
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$get_ts = time();
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$get_ip = $_SERVER['REMOTE_ADDR'];
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$query = "UPDATE ".$this->USERS_TABLE." SET login_when = '$get_ts', login_ip = '$get_ip' WHERE user_id = '$user_id'";
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$database->query($query);
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}
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// Return if the user exists or not
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return $num_rows;
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}
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// Increase the count for login attemps
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function increase_attemps() {
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if(!isset($_SESSION['ATTEMPS'])) {
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$_SESSION['ATTEMPS'] = 0;
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} else {
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$_SESSION['ATTEMPS'] = $this->get_session('ATTEMPS')+1;
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}
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$this->display_login();
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}
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// Function to set a "remembering" cookie for the user
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function remember($user_id) {
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$remember_key = '';
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// Generate user id to append to the remember key
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$length = 11-strlen($user_id);
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if($length > 0) {
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for($i = 1; $i <= $length; $i++) {
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$remember_key .= '0';
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}
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}
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// Generate remember key
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$remember_key .= $user_id.'_';
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$salt = "abchefghjkmnpqrstuvwxyz0123456789";
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srand((double)microtime()*1000000);
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$i = 0;
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while ($i <= 10) {
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$num = rand() % 33;
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$tmp = substr($salt, $num, 1);
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$remember_key = $remember_key . $tmp;
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$i++;
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}
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$remember_key = $remember_key;
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// Update the remember key in the db
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$database = new database();
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$database->query("UPDATE ".$this->USERS_TABLE." SET remember_key = '$remember_key' WHERE user_id = '$user_id' LIMIT 1");
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if($database->is_error()) {
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return false;
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} else {
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// Workout options for the cookie
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$cookie_name = 'REMEMBER_KEY';
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$cookie_value = $remember_key;
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$cookie_expire = time()+60*60*24*30;
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// Set the cookie
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327
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if(setcookie($cookie_name, $cookie_value, $cookie_expire, '/')) {
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return true;
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} else {
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return false;
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}
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332
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}
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}
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334
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// Function to check if a user has been remembered
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336
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function is_remembered() {
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337
|
if(isset($_COOKIE['REMEMBER_KEY']) AND $_COOKIE['REMEMBER_KEY'] != '') {
|
|
338
|
// Check if the remember key is correct
|
|
339
|
$database = new database();
|
|
340
|
$sql = "SELECT `user_id` FROM `" . $this->USERS_TABLE . "` WHERE `remember_key` = '";
|
|
341
|
$sql .= $this->get_safe_remember_key() . "' LIMIT 1";
|
|
342
|
$check_query = $database->query($sql);
|
|
343
|
|
|
344
|
if($check_query->numRows() > 0) {
|
|
345
|
$check_fetch = $check_query->fetchRow();
|
|
346
|
$user_id = $check_fetch['user_id'];
|
|
347
|
// Check the remember key prefix
|
|
348
|
$remember_key_prefix = '';
|
|
349
|
$length = 11-strlen($user_id);
|
|
350
|
if($length > 0) {
|
|
351
|
for($i = 1; $i <= $length; $i++) {
|
|
352
|
$remember_key_prefix .= '0';
|
|
353
|
}
|
|
354
|
}
|
|
355
|
$remember_key_prefix .= $user_id.'_';
|
|
356
|
$length = strlen($remember_key_prefix);
|
|
357
|
if(substr($_COOKIE['REMEMBER_KEY'], 0, $length) == $remember_key_prefix) {
|
|
358
|
return true;
|
|
359
|
} else {
|
|
360
|
return false;
|
|
361
|
}
|
|
362
|
} else {
|
|
363
|
return false;
|
|
364
|
}
|
|
365
|
} else {
|
|
366
|
return false;
|
|
367
|
}
|
|
368
|
}
|
|
369
|
|
|
370
|
// Display the login screen
|
|
371
|
function display_login() {
|
|
372
|
// Get language vars
|
|
373
|
global $MESSAGE;
|
|
374
|
global $MENU;
|
|
375
|
global $TEXT;
|
|
376
|
// If attemps more than allowed, warn the user
|
|
377
|
if($this->get_session('ATTEMPS') > $this->max_attemps) {
|
|
378
|
$this->warn();
|
|
379
|
}
|
|
380
|
// Show the login form
|
|
381
|
if($this->frontend != true) {
|
|
382
|
require_once(WB_PATH.'/include/phplib/template.inc');
|
|
383
|
$template = new Template($this->template_dir);
|
|
384
|
$template->set_file('page', $this->template_file);
|
|
385
|
$template->set_block('page', 'mainBlock', 'main');
|
|
386
|
if($this->remember_me_option != true) {
|
|
387
|
$template->set_var('DISPLAY_REMEMBER_ME', 'display: none;');
|
|
388
|
} else {
|
|
389
|
$template->set_var('DISPLAY_REMEMBER_ME', '');
|
|
390
|
}
|
|
391
|
$template->set_var(array(
|
|
392
|
'ACTION_URL' => $this->login_url,
|
|
393
|
'ATTEMPS' => $this->get_session('ATTEMPS'),
|
|
394
|
'USERNAME' => $this->username,
|
|
395
|
'USERNAME_FIELDNAME' => $this->username_fieldname,
|
|
396
|
'PASSWORD_FIELDNAME' => $this->password_fieldname,
|
|
397
|
'MESSAGE' => $this->message,
|
|
398
|
'INTERFACE_DIR_URL' => ADMIN_URL.'/interface',
|
|
399
|
'MAX_USERNAME_LEN' => $this->max_username_len,
|
|
400
|
'MAX_PASSWORD_LEN' => $this->max_password_len,
|
|
401
|
'WB_URL' => WB_URL,
|
|
402
|
'THEME_URL' => THEME_URL,
|
|
403
|
'LANGUAGE' => strtolower(LANGUAGE),
|
|
404
|
'FORGOTTEN_DETAILS_APP' => $this->forgotten_details_app,
|
|
405
|
'TEXT_FORGOTTEN_DETAILS' => $TEXT['FORGOTTEN_DETAILS'],
|
|
406
|
'TEXT_USERNAME' => $TEXT['USERNAME'],
|
|
407
|
'TEXT_PASSWORD' => $TEXT['PASSWORD'],
|
|
408
|
'TEXT_REMEMBER_ME' => $TEXT['REMEMBER_ME'],
|
|
409
|
'TEXT_LOGIN' => $TEXT['LOGIN'],
|
|
410
|
'TEXT_HOME' => $TEXT['HOME'],
|
|
411
|
'PAGES_DIRECTORY' => PAGES_DIRECTORY,
|
|
412
|
'SECTION_LOGIN' => $MENU['LOGIN']
|
|
413
|
)
|
|
414
|
);
|
|
415
|
if(defined('DEFAULT_CHARSET')) {
|
|
416
|
$charset=DEFAULT_CHARSET;
|
|
417
|
} else {
|
|
418
|
$charset='utf-8';
|
|
419
|
}
|
|
420
|
|
|
421
|
$template->set_var('CHARSET', $charset);
|
|
422
|
|
|
423
|
|
|
424
|
$template->parse('main', 'mainBlock', false);
|
|
425
|
$template->pparse('output', 'page');
|
|
426
|
}
|
|
427
|
}
|
|
428
|
|
|
429
|
// sanities the REMEMBER_KEY cookie to avoid SQL injection
|
|
430
|
function get_safe_remember_key() {
|
|
431
|
if (!((strlen($_COOKIE['REMEMBER_KEY']) == 23) && (substr($_COOKIE['REMEMBER_KEY'], 11, 1) == '_'))) return '';
|
|
432
|
// create a clean cookie (XXXXXXXXXXX_YYYYYYYYYYY) where X:= numeric, Y:= hash
|
|
433
|
$clean_cookie = sprintf('%011d', (int) substr($_COOKIE['REMEMBER_KEY'], 0, 11)) . substr($_COOKIE['REMEMBER_KEY'], 11);
|
|
434
|
return ($clean_cookie == $_COOKIE['REMEMBER_KEY']) ? $this->add_slashes($clean_cookie) : '';
|
|
435
|
}
|
|
436
|
|
|
437
|
// Warn user that they have had to many login attemps
|
|
438
|
function warn() {
|
|
439
|
header('Location: '.$this->warning_url);
|
|
440
|
exit(0);
|
|
441
|
}
|
|
442
|
|
|
443
|
}
|
|
444
|
|
|
445
|
?>
|