<?php
/**
 * Project: MyAAC
 *     Automatic Account Creator for Open Tibia Servers
 * File: index.php
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * @package   MyAAC
 * @author    Slawkens <slawkens@gmail.com>
 * @copyright 2017 MyAAC
 * @version   0.5.0
 * @link      http://my-aac.org
 */

// uncomment if your php.ini have display_errors disabled and you want to see errors
// ini_set('display_errors', 1);
// ini_set('display_startup_errors', 1);
// error_reporting(E_ALL);

require_once('common.php');
require_once(BASE . 'config.local.php');

if(file_exists(BASE . 'install') && (!isset($config['installed']) || !$config['installed']))
{
	header('Location: ' . BASE_URL . 'install/');
	die('Setup detected that <b>install/</b> directory exists. Please visit <a href="' . BASE_URL . 'install">this</a> url to start MyAAC Installation.<br/>Delete <b>install/</b> directory if you already installed MyAAC.<br/>Remember to REFRESH this page when you\'re done!');
}

require_once(SYSTEM . 'functions.php');

$uri = $_SERVER['REQUEST_URI'];
if(!empty(BASE_DIR))
	$uri = str_replace(BASE_DIR . '/', '', $uri);
else
	$uri = str_replace_first('/', '', $uri);

$uri = str_replace(array('index.php/', '?'), '', $uri);
$uri = strtolower($uri);

$found = false;
if(empty($uri) || isset($_REQUEST['template'])) {
	$_REQUEST['p'] = 'news';
	$found = true;
}
else if(!preg_match('/[^A-z0-9_\-]/', $uri) && file_exists(SYSTEM . 'pages/' . $uri . '.php')) {
	$_REQUEST['p'] = $uri;
	$found = true;
}
else {
	$rules = array(
		'/^account\/manage\/?$/' => array('subtopic' => 'accountmanagement'),
		'/^account\/create\/?$/' => array('subtopic' => 'createaccount'),
		'/^account\/lost\/?$/' => array('subtopic' => 'lostaccount'),
		'/^account\/logout\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'logout'),
		'/^account\/password\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changepassword'),
		'/^account\/register\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'registeraccount'),
		'/^account\/register\/new\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'registernew'),
		'/^account\/email\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changeemail'),
		'/^account\/info\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changeinfo'),
		'/^account\/character\/create\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'createcharacter'),
		'/^account\/character\/name\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changename'),
		'/^account\/character\/sex\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changesex'),
		'/^account\/character\/delete\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'deletecharacter'),
		'/^account\/character\/comment\/[A-Za-z]+\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changecomment', 'name' => '$3'),
		'/^account\/character\/comment\/?$/' => array('subtopic' => 'accountmanagement', 'action' => 'changecomment'),
		'/^characters\/[A-Za-z0-9-_%+\']+$/' => array('subtopic' => 'characters', 'name' => '$1'),
		'/^commands\/add\/?$/' => array('subtopic' => 'commands', 'action' => 'add'),
		'/^commands\/edit\/?$/' => array('subtopic' => 'commands', 'action' => 'edit'),
		'/^news\/add\/?$/' => array('subtopic' => 'news', 'action' => 'add'),
		'/^news\/edit\/?$/' => array('subtopic' => 'news', 'action' => 'edit'),
		'/^news\/archive\/?$/' => array('subtopic' => 'newsarchive'),
		'/^news\/archive\/[0-9]+\/?$/' => array('subtopic' => 'newsarchive', 'id' => '$2'),
		'/^guilds\/[A-Za-z0-9-_%+\']+$/' => array('subtopic' => 'guilds', 'action' => 'show', 'guild' => '$1'),
		'/^forum\/add_board\/?$/' => array('subtopic' => 'forum', 'action' => 'add_board'),#
		'/^forum\/edit_board\/?$/' => array('subtopic' => 'forum', 'action' => 'edit_board'),
		'/^forum\/board\/[0-9]+\/?$/' => array('subtopic' => 'forum', 'action' => 'show_board', 'id' => '$2'),
		'/^forum\/board\/[0-9]+\/[0-9]+\/?$/' => array('subtopic' => 'forum', 'action' => 'show_board', 'id' => '$2', 'page' => '$3'),
		'/^forum\/thread\/[0-9]+\/?$/' => array('subtopic' => 'forum', 'action' => 'show_thread', 'id' => '$2'),
		'/^forum\/thread\/[0-9]+\/[0-9]+\/?$/' => array('subtopic' => 'forum', 'action' => 'show_thread', 'id' => '$2', 'page' => '$3'),
		'/^gifts\/history\/?$/' => array('subtopic' => 'gifts', 'action' => 'show_history'),
		'/^highscores\/[A-Za-z0-9-_]+\/[A-Za-z0-9-_]+\/[0-9]+\/?$/' => array('subtopic' => 'highscores', 'list' => '$1', 'vocation' => '$2', 'page' => '$3'),
		'/^highscores\/[A-Za-z0-9-_]+\/[0-9]+\/?$/' => array('subtopic' => 'highscores', 'list' => '$1', 'page' => '$2'),
		'/^highscores\/[A-Za-z0-9-_]+\/[A-Za-z0-9-_]+\/?$/' => array('subtopic' => 'highscores', 'list' => '$1', 'vocation' => '$2'),
		'/^highscores\/[A-Za-z0-9-_\']+\/?$/' => array('subtopic' => 'highscores', 'list' => '$1'),
		'/^polls\/[0-9]+\/?$/' => array('subtopic' => 'polls', 'id' => '$1')
	);
	
	if (preg_match("/^[A-Za-z0-9-_%\'+]+\.png$/i", $uri)) {
		$tmp = explode('.', $uri);
		$_REQUEST['name'] = urldecode($tmp[0]);
		
		chdir(TOOLS . 'signature');
		include('index.php');
		exit();
	}
	
	foreach($rules as $rule => $redirect) {
		if (preg_match($rule, $uri)) {
			$tmp = explode('/', $uri);
			foreach($redirect as $key => $value) {
				if(strpos($value, '$') !== false) {
					$value = str_replace('$' . $value[1], $tmp[$value[1]], $value);
				}
				
				$_REQUEST[$key] = $value;
				$_GET[$key] = $value;
			}
			
			$found = true;
			break;
		}
	}
	
	if(!$found)
		$_REQUEST['p'] = $uri;
}

// define page visited, so it can be used within events system
$page = isset($_REQUEST['subtopic']) ? $_REQUEST['subtopic'] : (isset($_REQUEST['p']) ? $_REQUEST['p'] : '');
if(empty($page) || preg_match('/[^A-z0-9\/_\-]/', $page)) {
	if(!$found)
		$page = '404';
	else
		$page = 'news';
}

$page = strtolower($page);
define('PAGE', $page);

$template_place_holders = array();

require_once(SYSTEM . 'init.php');
require_once(SYSTEM . 'login.php');
require_once(SYSTEM . 'status.php');
require_once(SYSTEM . 'template.php');

$twig->addGlobal('config', $config);
$twig->addGlobal('status', $status);

// database migrations
$tmp = '';
if(fetchDatabaseConfig('database_version', $tmp)) { // we got version
	$tmp = (int)$tmp;
	if($tmp < DATABASE_VERSION) { // import if older
		for($i = $tmp + 1; $i <= DATABASE_VERSION; $i++) {
			$file = SYSTEM . 'migrations/' . $i . '.php';
			if(file_exists($file)) {
				require($file);
			}
		}
		
		updateDatabaseConfig('database_version', DATABASE_VERSION);
	}
}
else { // register first version
	for($i = 1; $i <= DATABASE_VERSION; $i++) {
		require(SYSTEM . 'migrations/' . $i . '.php');
	}

	registerDatabaseConfig('database_version', DATABASE_VERSION);
}

// event system
require_once(SYSTEM . 'hooks.php');
$hooks = new Hooks();
$hooks->load();
$hooks->trigger(HOOK_STARTUP);

if($config['views_counter'])
	require_once(SYSTEM . 'counter.php');

if($config['visitors_counter'])
{
	require_once(SYSTEM . 'libs/visitors.php');
	$visitors = new Visitors($config['visitors_counter_ttl']);
}

// page content loading
if(!isset($content[0]))
	$content = '';
$load_it = true;

// check if site has been closed
$site_closed = false;
if(fetchDatabaseConfig('site_closed', $site_closed)) {
	$site_closed = ($site_closed == 1);
	if($site_closed) {
		if(!admin())
		{
			$title = getDatabaseConfig('site_closed_title');
			$content .= '<p class="note">' . getDatabaseConfig('site_closed_message') . '</p><br/>';
			$load_it = false;
		}

		if(!$logged)
		{
			ob_start();
			require(SYSTEM . 'pages/accountmanagement.php');
			$content .= ob_get_contents();
			ob_end_clean();
			$load_it = false;
		}
	}
}
define('SITE_CLOSED', $site_closed);

// backward support for gesior
if($config['backward_support']) {
	define('INITIALIZED', true);
	$SQL = $db;
	$layout_header = template_header();
	$layout_name = $template_path;
	$news_content = '';
	$subtopic = PAGE;
	$main_content = '';
	
	$config['access_admin_panel'] = 2;
	$group_id_of_acc_logged = 0;
	if($logged && $account_logged)
		$group_id_of_acc_logged = $account_logged->getGroupId();

	$config['site'] = &$config;
	$config['server'] = &$config['lua'];
	$config['site']['shop_system'] = $config['gifts_system'];

	if(!isset($config['vdarkborder']))
		$config['vdarkborder'] = '#505050';
	if(!isset($config['darkborder']))
		$config['darkborder'] = '#D4C0A1';
	if(!isset($config['lightborder']))
		$config['lightborder'] = '#F1E0C6';

	$config['site']['download_page'] = true;
	$config['site']['serverinfo_page'] = true;
	$config['site']['screenshot_page'] = true;
	
	if($config['forum'] != '')
		$config['forum_link'] = (strtolower($config['forum']) == 'site' ? getLink('forum') : $config['forum']);

	foreach($status as $key => $value)
		$config['status']['serverStatus_' . $key] = $value;
}

if($load_it)
{
	if(SITE_CLOSED && admin())
		$content .= '<p class="note">Site is under maintenance (closed mode). Only privileged users can see it.</p>';

	if($config['backward_support'])
		require(SYSTEM . 'compat_pages.php');

	$ignore = false;

	$logged_access = 0;
	if($logged && $account_logged && $account_logged->isLoaded()) {
		$logged_access = $account_logged->getAccess();
	}

	$query =
		$db->query(
			'SELECT `title`, `body`, `php`' .
			' FROM `' . TABLE_PREFIX . 'pages`' .
			' WHERE `name` LIKE ' . $db->quote($page) . ' AND `hidden` != 1 AND `access` <= ' . $db->quote($logged_access));
	if($query->rowCount() > 0) // found page
	{
		$ignore = true;
		$query = $query->fetch();
		$title = $query['title'];

		if($query['php'] == '1') // execute it as php code
		{
			$tmp = substr($query['body'], 0, 10);
			if(($pos = strpos($tmp, '<?php')) !== false) {
				$tmp = preg_replace('/<\?php/', '', $query['body'], 1);
			}
			else if(($pos = strpos($tmp, '<?')) !== false) {
				$tmp = preg_replace('/<\?/', '', $query['body'], 1);
			}
			else
				$tmp = $query['body'];

			$php_errors = array();
			function error_handler($errno, $errstr) {
				global $php_errors;
				$php_errors[] = array('errno' => $errno, 'errstr' => $errstr);
			}
			set_error_handler('error_handler');

			ob_start();
			eval($tmp);
			$content .= ob_get_contents();
			ob_end_clean();

			restore_error_handler();
			if(isset($php_errors[0]) && superAdmin()) {
				var_dump($php_errors);
			}
		}
		else
			$content .= $query['body']; // plain html
	}
	else
	{
		$file = SYSTEM . 'pages/' . $page . '.php';
		if(!@file_exists($file) && !$found)
		{
			$page = '404';
			$file = SYSTEM . 'pages/404.php';
		}
	}

	ob_start();
	if($hooks->trigger(HOOK_BEFORE_PAGE)) {
		if(!$ignore)
			require($file);
	}

	if($config['backward_support'] && isset($main_content[0]))
		$content .= $main_content;

	$content .= ob_get_contents();
	ob_end_clean();
	$hooks->trigger(HOOK_AFTER_PAGE);
}

if($config['backward_support']) {
	$main_content = $content;
	if(!isset($title))
		$title = ucfirst($page);

	$topic = $title;
}

$title_full =  (isset($title) ? $title . $config['title_separator'] : '') . $config['lua']['serverName'];
if(file_exists($template_path . '/index.php'))
	require($template_path . '/index.php');
else if(file_exists($template_path . '/template.php')) // deprecated
	require($template_path . '/template.php');
else if($config['backward_support'] && file_exists($template_path . '/layout.php'))
{
	require($template_path . '/layout.php');
}
else
{
	// TODO: save more info to log file
	die('ERROR: Cannot load template.');
}

echo '<!-- MyAAC ' . MYAAC_VERSION . ' :: http://www.my-aac.org/ -->' . "\n";
if(($config['debug_level'] & 1) == 1)
	echo '<!-- Generated in :: ' . round(microtime(true) - START_TIME, 4) . ' -->';

if(($config['debug_level'] & 2) == 2)
	echo "\n" . '<!-- Queries done :: ' . $db->queries() . ' -->';

if(($config['debug_level'] & 4) == 4 && function_exists('memory_get_peak_usage'))
	echo "\n" . '<!-- Peak memory usage: ' . convert_bytes(memory_get_peak_usage(true)) . ' -->';

$hooks->trigger(HOOK_FINISH);
?>
