root/trunk/index.php

<?php

/**
 * Package: Spam Board 5
 * File: index.php
 * Description: wrapper file calling all the others directly or indirectly
 *
 * Copyright (C) 2007, 2008, 2009, 2011 Hannes Schueller
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3 of the
 * License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program (see LICENCE). If not,
 * see <http://www.gnu.org/licenses/>.
 **/

// disable output of error messages and warnings
ini_set('display_errors', 'Off');
error_reporting(E_ALL | E_STRICT);

// explicitely set default timezone
date_default_timezone_set('UTC');

// if install script is present, redirect there
if (is_file('install.php')) {
    header('Location: install.php');
}

// initialize global warnings array
$WARNINGS = Array();

// global settings file
require_once('includes/config/settings.php');

// load classes on demand; in spite of being spread over two directories, class names obviously have to be unique
function __autoload($class) {
    global $SETTINGS;
    if (is_file($SETTINGS['fspath'] . 'classes/pages/' . $class . '.php')) {
        require_once($SETTINGS['fspath'] . 'classes/pages/' . $class . '.php');
    } elseif (is_file($SETTINGS['fspath'] . 'classes/misc/' . $class . '.php')) {
        require_once($SETTINGS['fspath'] . 'classes/misc/' . $class . '.php');
    } else { die('Class ' . $class . ' not found.'); }
}

// list of time zones
require_once($SETTINGS['fspath'] . 'includes/config/timezones.php');

// import version number
require_once($SETTINGS['fspath'] . 'includes/config/version.php');

// bots definition
require_once($SETTINGS['fspath'] . 'includes/config/bots.php');

// get memberstages
require_once($SETTINGS['fspath'] . 'includes/config/memberstages.php');

// default usergroups
require_once($SETTINGS['fspath'] . 'includes/config/defaultgroups.php');

// cryptography module
require_once($SETTINGS['fspath'] . 'includes/config/crypt.php');

// load formatting functions
$F = new Format();

// language file
require($SETTINGS['fspath'] . 'includes/lang/' . $SETTINGS['language'] . '.php');

// input validation
require_once($SETTINGS['fspath'] . 'includes/input.php');

// open SQL connection
$C = new Connection();

// initialize session
Member::session();

// check if too many failed login attempts
if (Page::checkLogins()) {

    // override global language setting with user preference if present
    if ($_SESSION['lang'] != '') {
        include($SETTINGS['fspath'] . 'includes/lang/' . $_SESSION['lang'] . '.php');
        $LANGUAGE = $_SESSION['lang'];
    } else {
        $LANGUAGE = $SETTINGS['language'];
    }

    // construct requested page
    $inc = ucfirst($INPUT['show']);
    if (is_file($SETTINGS['fspath'] . 'classes/pages/' . $inc . '.php') && is_readable($SETTINGS['fspath'] . 'classes/pages/' . $inc . '.php')) {
        if (isset($INPUT['id']) && $INPUT['id'] > 0) {
            $page = new $inc($INPUT['id']);
        } else {
            $page = new $inc();
        }
    } else {
        // 404
        die($LANG['error_page_not_found']);
    }

    /* send output to browser;
     * NOTHING is sent before apart from header data. The complete XML tree is only constructed in memory before to ensure it will be well-formed. Obviously, such a guarantee can't be given if it's sent 'on the fly'. */
    $page->out();

    // close database connection
    $C = NULL;

    // destroy global formatting object
    unset($F);

    // everything done - page object no longer needed
    unset($page);

}

?>