454 lines
16 KiB
PHP
454 lines
16 KiB
PHP
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<?php
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/**
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* This, as you have probably guessed, is the crux on which SMF functions.
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* Everything should start here, so all the setup and security is done
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* properly. The most interesting part of this file is the action array in
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* the smf_main() function. It is formatted as so:
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* 'action-in-url' => array('Source-File.php', 'FunctionToCall'),
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*
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* Then, you can access the FunctionToCall() function from Source-File.php
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* with the URL index.php?action=action-in-url. Relatively simple, no?
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*
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* Simple Machines Forum (SMF)
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*
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* @package SMF
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* @author Simple Machines https://www.simplemachines.org
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* @copyright 2023 Simple Machines and individual contributors
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* @license https://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.1.4
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*/
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// Get everything started up...
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define('SMF', 1);
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define('SMF_VERSION', '2.1.4');
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define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
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define('SMF_SOFTWARE_YEAR', '2023');
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define('JQUERY_VERSION', '3.6.3');
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define('POSTGRE_TITLE', 'PostgreSQL');
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define('MYSQL_TITLE', 'MySQL');
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define('SMF_USER_AGENT', 'Mozilla/5.0 (' . php_uname('s') . ' ' . php_uname('m') . ') AppleWebKit/605.1.15 (KHTML, like Gecko) SMF/' . strtr(SMF_VERSION, ' ', '.'));
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if (!defined('TIME_START'))
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define('TIME_START', microtime(true));
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// If anything goes wrong loading Settings.php, make sure the admin knows it.
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error_reporting(E_ALL);
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// This makes it so headers can be sent!
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ob_start();
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// Do some cleaning, just in case.
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foreach (array('db_character_set', 'cachedir') as $variable)
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unset($GLOBALS[$variable]);
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// Load the settings...
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require_once(dirname(__FILE__) . '/Settings.php');
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// Devs want all error messages, but others don't.
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error_reporting(!empty($db_show_debug) ? E_ALL : E_ALL & ~E_DEPRECATED);
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// Ensure there are no trailing slashes in these variables.
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foreach (array('boardurl', 'boarddir', 'sourcedir', 'packagesdir', 'tasksdir', 'cachedir') as $variable)
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if (!empty($GLOBALS[$variable]))
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$GLOBALS[$variable] = rtrim($GLOBALS[$variable], "\\/");
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// Make absolutely sure the cache directory is defined and writable.
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if (empty($cachedir) || !is_dir($cachedir) || !is_writable($cachedir))
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{
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if (is_dir($boarddir . '/cache') && is_writable($boarddir . '/cache'))
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$cachedir = $boarddir . '/cache';
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else
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{
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$cachedir = sys_get_temp_dir() . '/smf_cache_' . md5($boarddir);
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@mkdir($cachedir, 0750);
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}
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}
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// Without those we can't go anywhere
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require_once($sourcedir . '/QueryString.php');
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require_once($sourcedir . '/Subs.php');
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require_once($sourcedir . '/Subs-Auth.php');
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require_once($sourcedir . '/Errors.php');
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require_once($sourcedir . '/Load.php');
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require_once($sourcedir . '/Security.php');
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// Ensure we don't trip over disabled internal functions
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if (version_compare(PHP_VERSION, '8.0.0', '>='))
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require_once($sourcedir . '/Subs-Compat.php');
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// If $maintenance is set specifically to 2, then we're upgrading or something.
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if (!empty($maintenance) && 2 === $maintenance)
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{
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display_maintenance_message();
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}
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// Create a variable to store some SMF specific functions in.
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$smcFunc = array();
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// Initiate the database connection and define some database functions to use.
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loadDatabase();
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/**
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* An autoloader for certain classes.
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*
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* @param string $class The fully-qualified class name.
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*/
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spl_autoload_register(function ($class) use ($sourcedir)
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{
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$classMap = array(
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'ReCaptcha\\' => 'ReCaptcha/',
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'MatthiasMullie\\Minify\\' => 'minify/src/',
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'MatthiasMullie\\PathConverter\\' => 'minify/path-converter/src/',
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'SMF\\Cache\\' => 'Cache/',
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);
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// Do any third-party scripts want in on the fun?
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call_integration_hook('integrate_autoload', array(&$classMap));
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foreach ($classMap as $prefix => $dirName)
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{
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// does the class use the namespace prefix?
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$len = strlen($prefix);
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if (strncmp($prefix, $class, $len) !== 0)
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{
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continue;
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}
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// get the relative class name
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$relativeClass = substr($class, $len);
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// replace the namespace prefix with the base directory, replace namespace
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// separators with directory separators in the relative class name, append
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// with .php
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$fileName = $dirName . strtr($relativeClass, '\\', '/') . '.php';
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// if the file exists, require it
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if (file_exists($fileName = $sourcedir . '/' . $fileName))
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{
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require_once $fileName;
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return;
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}
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}
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});
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// Load the settings from the settings table, and perform operations like optimizing.
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$context = array();
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reloadSettings();
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// Clean the request variables, add slashes, etc.
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cleanRequest();
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// Seed the random generator.
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if (empty($modSettings['rand_seed']) || mt_rand(1, 250) == 69)
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smf_seed_generator();
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// And important includes.
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require_once($sourcedir . '/Session.php');
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require_once($sourcedir . '/Logging.php');
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require_once($sourcedir . '/Class-BrowserDetect.php');
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// If a Preflight is occurring, lets stop now.
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if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'OPTIONS')
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{
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send_http_status(204);
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die;
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}
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// Check if compressed output is enabled, supported, and not already being done.
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if (!empty($modSettings['enableCompressedOutput']) && !headers_sent())
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{
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// If zlib is being used, turn off output compression.
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if (ini_get('zlib.output_compression') >= 1 || ini_get('output_handler') == 'ob_gzhandler')
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$modSettings['enableCompressedOutput'] = '0';
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else
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{
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ob_end_clean();
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ob_start('ob_gzhandler');
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}
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}
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// Register an error handler.
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set_error_handler('smf_error_handler');
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// Start the session. (assuming it hasn't already been.)
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loadSession();
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// What function shall we execute? (done like this for memory's sake.)
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call_user_func(smf_main());
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// Call obExit specially; we're coming from the main area ;).
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obExit(null, null, true);
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/**
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* The main dispatcher.
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* This delegates to each area.
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*
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* @return array|string|void An array containing the file to include and name of function to call, the name of a function to call or dies with a fatal_lang_error if we couldn't find anything to do.
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*/
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function smf_main()
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{
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global $modSettings, $settings, $user_info, $board, $topic;
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global $board_info, $maintenance, $sourcedir, $should_log;
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// Special case: session keep-alive, output a transparent pixel.
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if (isset($_GET['action']) && $_GET['action'] == 'keepalive')
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{
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header('content-type: image/gif');
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die("\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x21\xF9\x04\x01\x00\x00\x00\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3B");
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}
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// We should set our security headers now.
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frameOptionsHeader();
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// Set our CORS policy.
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corsPolicyHeader();
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// Load the user's cookie (or set as guest) and load their settings.
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loadUserSettings();
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// Load the current board's information.
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loadBoard();
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// Load the current user's permissions.
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loadPermissions();
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// Attachments don't require the entire theme to be loaded.
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if (isset($_REQUEST['action']) && $_REQUEST['action'] == 'dlattach' && empty($maintenance))
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detectBrowser();
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// Load the current theme. (note that ?theme=1 will also work, may be used for guest theming.)
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else
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loadTheme();
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// Check if the user should be disallowed access.
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is_not_banned();
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// If we are in a topic and don't have permission to approve it then duck out now.
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if (!empty($topic) && empty($board_info['cur_topic_approved']) && !allowedTo('approve_posts') && ($user_info['id'] != $board_info['cur_topic_starter'] || $user_info['is_guest']))
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fatal_lang_error('not_a_topic', false);
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// Do some logging, unless this is an attachment, avatar, toggle of editor buttons, theme option, XML feed, popup, etc.
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$no_stat_actions = array(
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'about:unknown' => true,
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'clock' => true,
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'dlattach' => true,
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'findmember' => true,
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'helpadmin' => true,
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'jsoption' => true,
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'likes' => true,
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'modifycat' => true,
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'pm' => array('sa' => array('popup')),
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'profile' => array('area' => array('popup', 'alerts_popup', 'download', 'dlattach')),
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'requestmembers' => true,
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'smstats' => true,
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'suggest' => true,
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'verificationcode' => true,
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'viewquery' => true,
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'viewsmfile' => true,
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'xmlhttp' => true,
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'.xml' => true,
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);
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call_integration_hook('integrate_pre_log_stats', array(&$no_stat_actions));
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$should_log = !is_filtered_request($no_stat_actions, 'action');
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if ($should_log)
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{
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// Log this user as online.
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writeLog();
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// Track forum statistics and hits...?
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if (!empty($modSettings['hitStats']))
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trackStats(array('hits' => '+'));
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}
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unset($no_stat_actions);
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// Make sure that our scheduled tasks have been running as intended
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check_cron();
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// Is the forum in maintenance mode? (doesn't apply to administrators.)
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if (!empty($maintenance) && !allowedTo('admin_forum'))
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{
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// You can only login.... otherwise, you're getting the "maintenance mode" display.
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if (isset($_REQUEST['action']) && (in_array($_REQUEST['action'], array('login2', 'logintfa', 'logout'))))
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{
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require_once($sourcedir . '/LogInOut.php');
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return ($_REQUEST['action'] == 'login2' ? 'Login2' : ($_REQUEST['action'] == 'logintfa' ? 'LoginTFA' : 'Logout'));
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}
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// Don't even try it, sonny.
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else
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return 'InMaintenance';
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}
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// If guest access is off, a guest can only do one of the very few following actions.
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elseif (empty($modSettings['allow_guestAccess']) && $user_info['is_guest'] && (!isset($_REQUEST['action']) || !in_array($_REQUEST['action'], array('coppa', 'login', 'login2', 'logintfa', 'reminder', 'activate', 'help', 'helpadmin', 'smstats', 'verificationcode', 'signup', 'signup2'))))
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return 'KickGuest';
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elseif (empty($_REQUEST['action']))
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{
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// Action and board are both empty... BoardIndex! Unless someone else wants to do something different.
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if (empty($board) && empty($topic))
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{
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if (!empty($modSettings['integrate_default_action']))
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{
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$defaultAction = explode(',', $modSettings['integrate_default_action']);
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// Sorry, only one default action is needed.
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$defaultAction = $defaultAction[0];
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$call = call_helper($defaultAction, true);
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if (!empty($call))
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return $call;
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}
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// No default action huh? then go to our good old BoardIndex.
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else
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{
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require_once($sourcedir . '/BoardIndex.php');
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return 'BoardIndex';
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}
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}
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// Topic is empty, and action is empty.... MessageIndex!
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elseif (empty($topic))
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{
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require_once($sourcedir . '/MessageIndex.php');
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return 'MessageIndex';
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}
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// Board is not empty... topic is not empty... action is empty.. Display!
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else
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{
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require_once($sourcedir . '/Display.php');
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return 'Display';
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}
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}
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// Here's the monstrous $_REQUEST['action'] array - $_REQUEST['action'] => array($file, $function).
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$actionArray = array(
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'agreement' => array('Agreement.php', 'Agreement'),
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'acceptagreement' => array('Agreement.php', 'AcceptAgreement'),
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'activate' => array('Register.php', 'Activate'),
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'admin' => array('Admin.php', 'AdminMain'),
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'announce' => array('Post.php', 'AnnounceTopic'),
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'attachapprove' => array('ManageAttachments.php', 'ApproveAttach'),
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'buddy' => array('Subs-Members.php', 'BuddyListToggle'),
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'calendar' => array('Calendar.php', 'CalendarMain'),
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'clock' => array('Calendar.php', 'clock'),
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'coppa' => array('Register.php', 'CoppaForm'),
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'credits' => array('Who.php', 'Credits'),
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'deletemsg' => array('RemoveTopic.php', 'DeleteMessage'),
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'dlattach' => array('ShowAttachments.php', 'showAttachment'),
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'editpoll' => array('Poll.php', 'EditPoll'),
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'editpoll2' => array('Poll.php', 'EditPoll2'),
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'findmember' => array('Subs-Auth.php', 'JSMembers'),
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'groups' => array('Groups.php', 'Groups'),
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'help' => array('Help.php', 'ShowHelp'),
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'helpadmin' => array('Help.php', 'ShowAdminHelp'),
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'jsmodify' => array('Post.php', 'JavaScriptModify'),
|
||
|
|
'jsoption' => array('Themes.php', 'SetJavaScript'),
|
||
|
|
'likes' => array('Likes.php', 'Likes::call#'),
|
||
|
|
'lock' => array('Topic.php', 'LockTopic'),
|
||
|
|
'lockvoting' => array('Poll.php', 'LockVoting'),
|
||
|
|
'login' => array('LogInOut.php', 'Login'),
|
||
|
|
'login2' => array('LogInOut.php', 'Login2'),
|
||
|
|
'logintfa' => array('LogInOut.php', 'LoginTFA'),
|
||
|
|
'logout' => array('LogInOut.php', 'Logout'),
|
||
|
|
'markasread' => array('Subs-Boards.php', 'MarkRead'),
|
||
|
|
'mergetopics' => array('SplitTopics.php', 'MergeTopics'),
|
||
|
|
'mlist' => array('Memberlist.php', 'Memberlist'),
|
||
|
|
'moderate' => array('ModerationCenter.php', 'ModerationMain'),
|
||
|
|
'modifycat' => array('ManageBoards.php', 'ModifyCat'),
|
||
|
|
'movetopic' => array('MoveTopic.php', 'MoveTopic'),
|
||
|
|
'movetopic2' => array('MoveTopic.php', 'MoveTopic2'),
|
||
|
|
'notifyannouncements' => array('Notify.php', 'AnnouncementsNotify'),
|
||
|
|
'notifyboard' => array('Notify.php', 'BoardNotify'),
|
||
|
|
'notifytopic' => array('Notify.php', 'TopicNotify'),
|
||
|
|
'pm' => array('PersonalMessage.php', 'MessageMain'),
|
||
|
|
'post' => array('Post.php', 'Post'),
|
||
|
|
'post2' => array('Post.php', 'Post2'),
|
||
|
|
'printpage' => array('Printpage.php', 'PrintTopic'),
|
||
|
|
'profile' => array('Profile.php', 'ModifyProfile'),
|
||
|
|
'quotefast' => array('Post.php', 'QuoteFast'),
|
||
|
|
'quickmod' => array('MessageIndex.php', 'QuickModeration'),
|
||
|
|
'quickmod2' => array('Display.php', 'QuickInTopicModeration'),
|
||
|
|
'recent' => array('Recent.php', 'RecentPosts'),
|
||
|
|
'reminder' => array('Reminder.php', 'RemindMe'),
|
||
|
|
'removepoll' => array('Poll.php', 'RemovePoll'),
|
||
|
|
'removetopic2' => array('RemoveTopic.php', 'RemoveTopic2'),
|
||
|
|
'reporttm' => array('ReportToMod.php', 'ReportToModerator'),
|
||
|
|
'requestmembers' => array('Subs-Auth.php', 'RequestMembers'),
|
||
|
|
'restoretopic' => array('RemoveTopic.php', 'RestoreTopic'),
|
||
|
|
'search' => array('Search.php', 'PlushSearch1'),
|
||
|
|
'search2' => array('Search.php', 'PlushSearch2'),
|
||
|
|
'sendactivation' => array('Register.php', 'SendActivation'),
|
||
|
|
'signup' => array('Register.php', 'Register'),
|
||
|
|
'signup2' => array('Register.php', 'Register2'),
|
||
|
|
'smstats' => array('Stats.php', 'SMStats'),
|
||
|
|
'suggest' => array('Subs-Editor.php', 'AutoSuggestHandler'),
|
||
|
|
'splittopics' => array('SplitTopics.php', 'SplitTopics'),
|
||
|
|
'stats' => array('Stats.php', 'DisplayStats'),
|
||
|
|
'sticky' => array('Topic.php', 'Sticky'),
|
||
|
|
'theme' => array('Themes.php', 'ThemesMain'),
|
||
|
|
'trackip' => array('Profile-View.php', 'trackIP'),
|
||
|
|
'about:unknown' => array('Likes.php', 'BookOfUnknown'),
|
||
|
|
'unread' => array('Recent.php', 'UnreadTopics'),
|
||
|
|
'unreadreplies' => array('Recent.php', 'UnreadTopics'),
|
||
|
|
'uploadAttach' => array('Attachments.php', 'Attachments::call#'),
|
||
|
|
'verificationcode' => array('Register.php', 'VerificationCode'),
|
||
|
|
'viewprofile' => array('Profile.php', 'ModifyProfile'),
|
||
|
|
'vote' => array('Poll.php', 'Vote'),
|
||
|
|
'viewquery' => array('ViewQuery.php', 'ViewQuery'),
|
||
|
|
'viewsmfile' => array('Admin.php', 'DisplayAdminFile'),
|
||
|
|
'who' => array('Who.php', 'Who'),
|
||
|
|
'.xml' => array('News.php', 'ShowXmlFeed'),
|
||
|
|
'xmlhttp' => array('Xml.php', 'XMLhttpMain'),
|
||
|
|
);
|
||
|
|
|
||
|
|
// Allow modifying $actionArray easily.
|
||
|
|
call_integration_hook('integrate_actions', array(&$actionArray));
|
||
|
|
|
||
|
|
// Get the function and file to include - if it's not there, do the board index.
|
||
|
|
if (!isset($_REQUEST['action']) || !isset($actionArray[$_REQUEST['action']]))
|
||
|
|
{
|
||
|
|
// Catch the action with the theme?
|
||
|
|
if (!empty($settings['catch_action']))
|
||
|
|
{
|
||
|
|
require_once($sourcedir . '/Themes.php');
|
||
|
|
return 'WrapAction';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($modSettings['integrate_fallback_action']))
|
||
|
|
{
|
||
|
|
$fallbackAction = explode(',', $modSettings['integrate_fallback_action']);
|
||
|
|
|
||
|
|
// Sorry, only one fallback action is needed.
|
||
|
|
$fallbackAction = $fallbackAction[0];
|
||
|
|
|
||
|
|
$call = call_helper($fallbackAction, true);
|
||
|
|
|
||
|
|
if (!empty($call))
|
||
|
|
return $call;
|
||
|
|
}
|
||
|
|
|
||
|
|
// No fallback action, huh?
|
||
|
|
else
|
||
|
|
{
|
||
|
|
fatal_lang_error('not_found', false, array(), 404);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Otherwise, it was set - so let's go to that action.
|
||
|
|
if (!empty($actionArray[$_REQUEST['action']][0]))
|
||
|
|
require_once($sourcedir . '/' . $actionArray[$_REQUEST['action']][0]);
|
||
|
|
|
||
|
|
// Do the right thing.
|
||
|
|
return call_helper($actionArray[$_REQUEST['action']][1], true);
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|