upgrade.php ➔ clean_cache() - Code Metrics - Inspection of "Fallback to the first element" - Antes/kittenground - Measure and Improve Code Quality continuously with Scrutinizer

Completed
Push — release-2.1 ( f9d087...e49a83 )

by Mert
created 2016-12-27 02:55 UTC
upgrade.php ➔ clean_cache() A

↳ Parent: Project
Complexity

Conditions	2
Paths	2
Size

Total Lines	22
Code Lines	7
Duplication

Lines	5
Ratio	22.73 %
Importance

Changes
Metric	Value
cc	2
eloc	7
nc	2
nop	1
dl	5
loc	22
rs	9.2
c	0
b	0
f	0
<?php

/**
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines http://www.simplemachines.org
 * @copyright 2016 Simple Machines and individual contributors
 * @license http://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 2.1 Beta 3
 */

// Version information...
define('SMF_VERSION', '2.1 Beta 3');
define('SMF_LANG_VERSION', '2.1 Beta 3');

$GLOBALS['required_php_version'] = '5.3.8';
$GLOBALS['required_mysql_version'] = '5.0.3';

$databases = array(
	'mysqli' => array(
		'name' => 'MySQLi',
		'version' => '5.0.3',
		'version_check' => 'global $db_connection; return min(mysqli_get_server_info($db_connection), mysqli_get_client_info());',
		'utf8_support' => true,
		'utf8_version' => '5.0.3',
		'utf8_version_check' => 'global $db_connection; return mysqli_get_server_info($db_connection);',
		'alter_support' => true,
	),
	'mysql' => array(
		'name' => 'MySQL',
		'version' => '5.0.3',
		'version_check' => 'return min(mysql_get_server_info(), mysql_get_client_info());',
		'utf8_support' => true,
		'utf8_version' => '5.0.3',
		'utf8_version_check' => 'return mysql_get_server_info();',
		'alter_support' => true,
	),
	'postgresql' => array(
		'name' => 'PostgreSQL',
		'version' => '8.0',
		'version_check' => '$version = pg_version(); return $version[\'client\'];',
		'always_has_db' => true,
	),
);

// General options for the script.
$timeLimitThreshold = 3;
$upgrade_path = dirname(__FILE__);
$upgradeurl = $_SERVER['PHP_SELF'];
// Where the SMF images etc are kept.
$smfsite = 'http://www.simplemachines.org/smf';
// Disable the need for admins to login?
$disable_security = false;
// How long, in seconds, must admin be inactive to allow someone else to run?
$upcontext['inactive_timeout'] = 10;

// All the steps in detail.
// Number,Name,Function,Progress Weight.
$upcontext['steps'] = array(
	0 => array(1, 'Login', 'WelcomeLogin', 2),
	1 => array(2, 'Upgrade Options', 'UpgradeOptions', 2),
	2 => array(3, 'Backup', 'BackupDatabase', 10),
	3 => array(4, 'Database Changes', 'DatabaseChanges', 50),
	4 => array(5, 'Convert to UTF-8', 'ConvertUtf8', 20),
	5 => array(6, 'Convert serialized strings to JSON', 'serialize_to_json', 10),
	// This is removed as it doesn't really work right at the moment.
	//4 => array(5, 'Cleanup Mods', 'CleanupMods', 10),
	6 => array(7, 'Delete Upgrade.php', 'DeleteUpgrade', 1),
);
// Just to remember which one has files in it.
$upcontext['database_step'] = 3;
@set_time_limit(600);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
if (!ini_get('safe_mode'))
{
	ini_set('mysql.connect_timeout', -1);
	ini_set('default_socket_timeout', 900);
}
// Clean the upgrade path if this is from the client.
if (!empty($_SERVER['argv']) && php_sapi_name() == 'cli' && empty($_SERVER['REMOTE_ADDR']))
	for ($i = 1; $i < $_SERVER['argc']; $i++)
	{
		if (preg_match('~^--path=(.+)$~', $_SERVER['argv'][$i], $match) != 0)
			$upgrade_path = substr($match[1], -1) == '/' ? substr($match[1], 0, -1) : $match[1];
	}

// Are we from the client?
if (php_sapi_name() == 'cli' && empty($_SERVER['REMOTE_ADDR']))
{
	$command_line = true;
	$disable_security = 1;
}
else
	$command_line = false;

// Load this now just because we can.
require_once($upgrade_path . '/Settings.php');

// Are we logged in?
if (isset($upgradeData))
{
	$upcontext['user'] = unserialize(base64_decode($upgradeData));

	// Check for sensible values.
	if (empty($upcontext['user']['started']) || $upcontext['user']['started'] < time() - 86400)

		$upcontext['user']['started'] = time();
	if (empty($upcontext['user']['updated']) || $upcontext['user']['updated'] < time() - 86400)

		$upcontext['user']['updated'] = 0;

	$upcontext['started'] = $upcontext['user']['started'];
	$upcontext['updated'] = $upcontext['user']['updated'];

	$is_debug = !empty($upcontext['user']['debug']) ? true : false;
}

// Nothing sensible?
if (empty($upcontext['updated']))
{
	$upcontext['started'] = time();
	$upcontext['updated'] = 0;
	$upcontext['user'] = array(
		'id' => 0,
		'name' => 'Guest',
		'pass' => 0,
		'started' => $upcontext['started'],
		'updated' => $upcontext['updated'],
	);
}

// Load up some essential data...
loadEssentialData();

// Are we going to be mimic'ing SSI at this point?
if (isset($_GET['ssi']))
{
	require_once($sourcedir . '/Errors.php');
	require_once($sourcedir . '/Logging.php');
	require_once($sourcedir . '/Load.php');
	require_once($sourcedir . '/Security.php');
	require_once($sourcedir . '/Subs-Package.php');

	loadUserSettings();
	loadPermissions();
}

if (!function_exists('un_htmlspecialchars'))
{
	function un_htmlspecialchars($string)
	{
		return strtr($string, array_flip(get_html_translation_table(HTML_SPECIALCHARS, ENT_QUOTES)) + array('&#039;' => '\'', '&nbsp;' => ' '));
	}
}

if (!function_exists('text2words'))
{
	function text2words($text)
	{
		// Step 1: Remove entities/things we don't consider words:
		$words = preg_replace('~(?:[\x0B\0\xA0\t\r\s\n(){}\\[\\]<>!@$%^*.,:+=`\~\?/\\\\]+|&(?:amp|lt|gt|quot);)+~', ' ', $text);

		// Step 2: Entities we left to letters, where applicable, lowercase.
		$words = preg_replace('~([^&\d]|^)[#;]~', '$1 ', un_htmlspecialchars(strtolower($words)));

		// Step 3: Ready to split apart and index!
		$words = explode(' ', $words);
		$returned_words = array();
		foreach ($words as $word)
		{
			$word = trim($word, '-_\'');

			if ($word != '')
				$returned_words[] = substr($word, 0, 20);
		}

		return array_unique($returned_words);
	}
}

if (!function_exists('clean_cache'))
{
	// Empty out the cache folder.
	function clean_cache($type = '')
	{
		global $cachedir, $sourcedir;

		// No directory = no game.
		if (!is_dir($cachedir))
			return;

		// Remove the files in SMF's own disk cache, if any
		$dh = opendir($cachedir);
		while ($file = readdir($dh))

		{
			if ($file != '.' && $file != '..' && $file != 'index.php' && $file != '.htaccess' && (!$type || substr($file, 0, strlen($type)) == $type))
				@unlink($cachedir . '/' . $file);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		}
		closedir($dh);

		// Invalidate cache, to be sure!
		// ... as long as index.php can be modified, anyway.
		@touch($cachedir . '/' . 'index.php');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		clearstatcache();
	}
}

// MD5 Encryption.
if (!function_exists('md5_hmac'))
{
	function md5_hmac($data, $key)
	{
		if (strlen($key) > 64)
			$key = pack('H*', md5($key));
		$key = str_pad($key, 64, chr(0x00));

		$k_ipad = $key ^ str_repeat(chr(0x36), 64);
		$k_opad = $key ^ str_repeat(chr(0x5c), 64);

		return md5($k_opad . pack('H*', md5($k_ipad . $data)));
	}
}

// Don't do security check if on Yabbse
if (!isset($modSettings['smfVersion']))
	$disable_security = true;

// This only exists if we're on SMF ;)
if (isset($modSettings['smfVersion']))
{
	$request = $smcFunc['db_query']('', '
		SELECT variable, value
		FROM {db_prefix}themes
		WHERE id_theme = {int:id_theme}
			AND variable IN ({string:theme_url}, {string:theme_dir}, {string:images_url})',
		array(
			'id_theme' => 1,
			'theme_url' => 'theme_url',
			'theme_dir' => 'theme_dir',
			'images_url' => 'images_url',
			'db_error_skip' => true,
		)
	);
	while ($row = $smcFunc['db_fetch_assoc']($request))

		$modSettings[$row['variable']] = $row['value'];
	$smcFunc['db_free_result']($request);
}

if (!isset($modSettings['theme_url']))
{
	$modSettings['theme_dir'] = $boarddir . '/Themes/default';
	$modSettings['theme_url'] = 'Themes/default';
	$modSettings['images_url'] = 'Themes/default/images';
}
if (!isset($settings['default_theme_url']))
	$settings['default_theme_url'] = $modSettings['theme_url'];
if (!isset($settings['default_theme_dir']))
	$settings['default_theme_dir'] = $modSettings['theme_dir'];

$upcontext['is_large_forum'] = (empty($modSettings['smfVersion']) || $modSettings['smfVersion'] <= '1.1 RC1') && !empty($modSettings['totalMessages']) && $modSettings['totalMessages'] > 75000;
// Default title...
$upcontext['page_title'] = isset($modSettings['smfVersion']) ? 'Updating Your SMF Install!' : 'Upgrading from YaBB SE!';

// Have we got tracking data - if so use it (It will be clean!)
if (isset($_GET['data']))
{
	global $is_debug;

	$upcontext['upgrade_status'] = safe_unserialize(base64_decode($_GET['data']));
	$upcontext['current_step'] = $upcontext['upgrade_status']['curstep'];
	$upcontext['language'] = $upcontext['upgrade_status']['lang'];
	$upcontext['rid'] = $upcontext['upgrade_status']['rid'];
	$support_js = $upcontext['upgrade_status']['js'];

	// Only set this if the upgrader status says so.
	if (empty($is_debug))
		$is_debug = $upcontext['upgrade_status']['debug'];

	// Load the language.
	if (file_exists($modSettings['theme_dir'] . '/languages/Install.' . $upcontext['language'] . '.php'))

		require_once($modSettings['theme_dir'] . '/languages/Install.' . $upcontext['language'] . '.php');
}
// Set the defaults.
else
{
	$upcontext['current_step'] = 0;
	$upcontext['rid'] = mt_rand(0, 5000);
	$upcontext['upgrade_status'] = array(
		'curstep' => 0,
		'lang' => isset($_GET['lang']) ? $_GET['lang'] : basename($language, '.lng'),
		'rid' => $upcontext['rid'],
		'pass' => 0,
		'debug' => 0,
		'js' => 0,
	);
	$upcontext['language'] = $upcontext['upgrade_status']['lang'];
}

// If this isn't the first stage see whether they are logging in and resuming.
if ($upcontext['current_step'] != 0 || !empty($upcontext['user']['step']))
	checkLogin();

if ($command_line)
	cmdStep0();

// Don't error if we're using xml.
if (isset($_GET['xml']))
	$upcontext['return_error'] = true;

// Loop through all the steps doing each one as required.
$upcontext['overall_percent'] = 0;
foreach ($upcontext['steps'] as $num => $step)
{
	if ($num >= $upcontext['current_step'])
	{
		// The current weight of this step in terms of overall progress.
		$upcontext['step_weight'] = $step[3];
		// Make sure we reset the skip button.
		$upcontext['skip'] = false;

		// We cannot proceed if we're not logged in.
		if ($num != 0 && !$disable_security && $upcontext['user']['pass'] != $upcontext['upgrade_status']['pass'])
		{
			$upcontext['steps'][0][2]();
			break;
		}

		// Call the step and if it returns false that means pause!
		if (function_exists($step[2]) && $step[2]() === false)

			break;
		elseif (function_exists($step[2]))
			$upcontext['current_step']++;
	}
	$upcontext['overall_percent'] += $step[3];
}

upgradeExit();

// Exit the upgrade script.
function upgradeExit($fallThrough = false)
{
	global $upcontext, $upgradeurl, $boarddir, $command_line, $is_debug;

	// Save where we are...
	if (!empty($upcontext['current_step']) && !empty($upcontext['user']['id']))
	{
		$upcontext['user']['step'] = $upcontext['current_step'];
		$upcontext['user']['substep'] = $_GET['substep'];
		$upcontext['user']['updated'] = time();
		$upcontext['debug'] = $is_debug;
		$upgradeData = base64_encode(safe_serialize($upcontext['user']));
		copy($boarddir . '/Settings.php', $boarddir . '/Settings_bak.php');
		changeSettings(array('upgradeData' => '"' . $upgradeData . '"'));
		updateLastError();
	}

	// Handle the progress of the step, if any.
	if (!empty($upcontext['step_progress']) && isset($upcontext['steps'][$upcontext['current_step']]))
	{
		$upcontext['step_progress'] = round($upcontext['step_progress'], 1);
		$upcontext['overall_percent'] += $upcontext['step_progress'] * ($upcontext['steps'][$upcontext['current_step']][3] / 100);
	}
	$upcontext['overall_percent'] = (int) $upcontext['overall_percent'];

	// We usually dump our templates out.
	if (!$fallThrough)
	{
		// This should not happen my dear... HELP ME DEVELOPERS!!
		if (!empty($command_line))
		{
			if (function_exists('debug_print_backtrace'))
				debug_print_backtrace();

			echo "\n" . 'Error: Unexpected call to use the ' . (isset($upcontext['sub_template']) ? $upcontext['sub_template'] : '') . ' template. Please copy and paste all the text above and visit the SMF support forum to tell the Developers that they\'ve made a boo boo; they\'ll get you up and running again.';
			flush();
			die();
		}

		if (!isset($_GET['xml']))
			template_upgrade_above();
		else
		{
			header('Content-Type: text/xml; charset=UTF-8');
			// Sadly we need to retain the $_GET data thanks to the old upgrade scripts.
			$upcontext['get_data'] = array();
			foreach ($_GET as $k => $v)
			{
				if (substr($k, 0, 3) != 'amp' && !in_array($k, array('xml', 'substep', 'lang', 'data', 'step', 'filecount')))
				{
					$upcontext['get_data'][$k] = $v;
				}
			}
			template_xml_above();
		}

		// Call the template.
		if (isset($upcontext['sub_template']))
		{
			$upcontext['upgrade_status']['curstep'] = $upcontext['current_step'];
			$upcontext['form_url'] = $upgradeurl . '?step=' . $upcontext['current_step'] . '&amp;substep=' . $_GET['substep'] . '&amp;data=' . base64_encode(safe_serialize($upcontext['upgrade_status']));

			// Custom stuff to pass back?
			if (!empty($upcontext['query_string']))
				$upcontext['form_url'] .= $upcontext['query_string'];

			call_user_func('template_' . $upcontext['sub_template']);
		}

		// Was there an error?
		if (!empty($upcontext['forced_error_message']))
			echo $upcontext['forced_error_message'];

		// Show the footer.
		if (!isset($_GET['xml']))
			template_upgrade_below();
		else
			template_xml_below();
	}


	if (!empty($command_line) && $is_debug)
	{
		$active = time() - $upcontext['started'];
		$hours = floor($active / 3600);
		$minutes = intval(($active / 60) % 60);
		$seconds = intval($active % 60);

		$totalTime = '';
		if ($hours > 0)
			$totalTime .= $hours . ' hour' . ($hours > 1 ? 's':'') . ' ';
		if ($minutes > 0)
			$totalTime .= $minutes . ' minute' . ($minutes > 1 ? 's':'') . ' ';
		if ($seconds > 0)
			$totalTime .= $seconds . ' second' . ($seconds > 1 ? 's':'') . ' ';

		if (!empty($totalTime))
			echo "\n" . 'Upgrade completed in ' . $totalTime . "\n";
	}

	// Bang - gone!
	die();
}

// Used to direct the user to another location.
function redirectLocation($location, $addForm = true)
{
	global $upgradeurl, $upcontext, $command_line;

	// Command line users can't be redirected.
	if ($command_line)
		upgradeExit(true);

	// Are we providing the core info?
	if ($addForm)
	{
		$upcontext['upgrade_status']['curstep'] = $upcontext['current_step'];
		$location = $upgradeurl . '?step=' . $upcontext['current_step'] . '&substep=' . $_GET['substep'] . '&data=' . base64_encode(safe_serialize($upcontext['upgrade_status'])) . $location;
	}

	while (@ob_end_clean());
	header('Location: ' . strtr($location, array('&amp;' => '&')));

	// Exit - saving status as we go.
	upgradeExit(true);
}

// Load all essential data and connect to the DB as this is pre SSI.php
function loadEssentialData()
{
	global $db_server, $db_user, $db_passwd, $db_name, $db_connection, $db_prefix, $db_character_set, $db_type;
	global $modSettings, $sourcedir, $smcFunc;

	// Do the non-SSI stuff...
	if (function_exists('set_magic_quotes_runtime'))
		@set_magic_quotes_runtime(0);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

	error_reporting(E_ALL);
	define('SMF', 1);

	// Start the session.
	if (@ini_get('session.save_handler') == 'user')
		@ini_set('session.save_handler', 'files');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
	@session_start();
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

	if (empty($smcFunc))
		$smcFunc = array();

	// We need this for authentication and some upgrade code
	require_once($sourcedir . '/Subs-Auth.php');
	require_once($sourcedir . '/Class-Package.php');

	$smcFunc['strtolower'] = 'smf_strtolower';


	// Initialize everything...
	initialize_inputs();

	// Get the database going!
	if (empty($db_type))
		$db_type = 'mysql';
	if (file_exists($sourcedir . '/Subs-Db-' . $db_type . '.php'))
	{
		require_once($sourcedir . '/Subs-Db-' . $db_type . '.php');

		// Make the connection...
		$db_connection = smf_db_initiate($db_server, $db_name, $db_user, $db_passwd, $db_prefix, array('non_fatal' => true));

		// Oh dear god!!
		if ($db_connection === null)
			die('Unable to connect to database - please check username and password are correct in Settings.php');

		if (($db_type == 'mysql' || $db_type == 'mysqli') && isset($db_character_set) && preg_match('~^\w+$~', $db_character_set) === 1)
			$smcFunc['db_query']('', '
			SET NAMES {string:db_character_set}',
			array(
				'db_error_skip' => true,
				'db_character_set' => $db_character_set,
			)
		);

		// Load the modSettings data...
		$request = $smcFunc['db_query']('', '
			SELECT variable, value
			FROM {db_prefix}settings',
			array(
				'db_error_skip' => true,
			)
		);
		$modSettings = array();
		while ($row = $smcFunc['db_fetch_assoc']($request))

			$modSettings[$row['variable']] = $row['value'];
		$smcFunc['db_free_result']($request);
	}
	else
	{
		return throw_error('Cannot find ' . $sourcedir . '/Subs-Db-' . $db_type . '.php' . '. Please check you have uploaded all source files and have the correct paths set.');
	}

	require_once($sourcedir . '/Subs.php');

	// If they don't have the file, they're going to get a warning anyway so we won't need to clean request vars.
	if (file_exists($sourcedir . '/QueryString.php') && php_version_check())
	{
		require_once($sourcedir . '/QueryString.php');
		cleanRequest();
	}

	if (!isset($_GET['substep']))
		$_GET['substep'] = 0;
}

function initialize_inputs()
/**
 * @ignore
 */
function getUser() {

}

function getUser($id, $realm) {

}
{
	global $start_time, $upcontext, $db_type;

	$start_time = time();

	umask(0);

	// Fun.  Low PHP version...
	if (!isset($_GET))
	{
		$GLOBALS['_GET']['step'] = 0;
		return;
	}

	ob_start();

	// Better to upgrade cleanly and fall apart than to screw everything up if things take too long.
	ignore_user_abort(true);

	// This is really quite simple; if ?delete is on the URL, delete the upgrader...
	if (isset($_GET['delete']))
	{
		@unlink(__FILE__);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

		$type = ($db_type == 'mysqli' ? 'mysql' : $db_type);

		// And the extra little files ;).
		@unlink(dirname(__FILE__) . '/upgrade_1-0.sql');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/upgrade_1-1.sql');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/upgrade_2-0_' . $type . '.sql');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/upgrade_2-1_' . $type . '.sql');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

		$dh = opendir(dirname(__FILE__));
		while ($file = readdir($dh))
		{
			if (preg_match('~upgrade_\d-\d_([A-Za-z])+\.sql~i', $file, $matches) && isset($matches[1]))
				@unlink(dirname(__FILE__) . '/' . $file);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		}
		closedir($dh);

		// Legacy files while we're at it. NOTE: We only touch files we KNOW shouldn't be there.
		// 1.1 Sources files not in 2.0+
		@unlink(dirname(__FILE__) . '/Sources/ModSettings.php');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		// 1.1 Templates that don't exist any more (e.g. renamed)
		@unlink(dirname(__FILE__) . '/Themes/default/Combat.template.php');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/Themes/default/Modlog.template.php');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		// 1.1 JS files were stored in the main theme folder, but in 2.0+ are in the scripts/ folder
		@unlink(dirname(__FILE__) . '/Themes/default/fader.js');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/Themes/default/script.js');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/Themes/default/spellcheck.js');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/Themes/default/xml_board.js');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/Themes/default/xml_topic.js');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

		// 2.0 Sources files not in 2.1+
		@unlink(dirname(__FILE__) . '/Sources/DumpDatabase.php');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		@unlink(dirname(__FILE__) . '/Sources/LockTopic.php');
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

		header('Location: http://' . (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT']) . dirname($_SERVER['PHP_SELF']) . '/Themes/default/images/blank.png');
		exit;
	}

	// Anybody home?
	if (!isset($_GET['xml']))

	{
		$upcontext['remote_files_available'] = false;
		$test = @fsockopen('www.simplemachines.org', 80, $errno, $errstr, 1);
		if ($test)
			$upcontext['remote_files_available'] = true;
		@fclose($test);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
	}

	// Something is causing this to happen, and it's annoying.  Stop it.
	$temp = 'upgrade_php?step';
	while (strlen($temp) > 4)
	{
		if (isset($_GET[$temp]))
			unset($_GET[$temp]);
		$temp = substr($temp, 1);
	}

	// Force a step, defaulting to 0.
	$_GET['step'] = (int) @$_GET['step'];
	$_GET['substep'] = (int) @$_GET['substep'];
}

// Step 0 - Let's welcome them in and ask them to login!
function WelcomeLogin()
{
	global $boarddir, $sourcedir, $modSettings, $cachedir, $upgradeurl, $upcontext;
	global $smcFunc, $db_type, $databases, $txt, $boardurl;

	$upcontext['sub_template'] = 'welcome_message';

	$type = ($db_type == 'mysqli' ? 'mysql' : $db_type);

	// Check for some key files - one template, one language, and a new and an old source file.
	$check = @file_exists($modSettings['theme_dir'] . '/index.template.php')
		&& @file_exists($sourcedir . '/QueryString.php')
		&& @file_exists($sourcedir . '/Subs-Db-' . $db_type . '.php')
		&& @file_exists(dirname(__FILE__) . '/upgrade_2-1_' . $type . '.sql');

	// Need legacy scripts?
	if (!isset($modSettings['smfVersion']) || $modSettings['smfVersion'] < 2.1)

		$check &= @file_exists(dirname(__FILE__) . '/upgrade_2-0_' . $type . '.sql');
	if (!isset($modSettings['smfVersion']) || $modSettings['smfVersion'] < 2.0)

		$check &= @file_exists(dirname(__FILE__) . '/upgrade_1-1.sql');
	if (!isset($modSettings['smfVersion']) || $modSettings['smfVersion'] < 1.1)

		$check &= @file_exists(dirname(__FILE__) . '/upgrade_1-0.sql');

	// This needs to exist!
	if (!file_exists($modSettings['theme_dir'] . '/languages/Install.' . $upcontext['language'] . '.php'))
		return throw_error('The upgrader could not find the &quot;Install&quot; language file for the forum default language, ' . $upcontext['language'] . '.<br><br>Please make certain you uploaded all the files included in the package, even the theme and language files for the default theme.<br>&nbsp;&nbsp;&nbsp;[<a href="' . $upgradeurl . '?lang=english">Try English</a>]');
	else
		require_once($modSettings['theme_dir'] . '/languages/Install.' . $upcontext['language'] . '.php');

	if (!$check)
		// Don't tell them what files exactly because it's a spot check - just like teachers don't tell which problems they are spot checking, that's dumb.
		return throw_error('The upgrader was unable to find some crucial files.<br><br>Please make sure you uploaded all of the files included in the package, including the Themes, Sources, and other directories.');

	// Do they meet the install requirements?
	if (!php_version_check())
		return throw_error('Warning!  You do not appear to have a version of PHP installed on your webserver that meets SMF\'s minimum installations requirements.<br><br>Please ask your host to upgrade.');

	if (!db_version_check())
		return throw_error('Your ' . $databases[$db_type]['name'] . ' version does not meet the minimum requirements of SMF.<br><br>Please ask your host to upgrade.');

	// Do some checks to make sure they have proper privileges
	db_extend('packages');

	// CREATE
	$create = $smcFunc['db_create_table']('{db_prefix}priv_check', array(array('name' => 'id_test', 'type' => 'int', 'size' => 10, 'unsigned' => true, 'auto' => true)), array(array('columns' => array('id_test'), 'type' => 'primary')), array(), 'overwrite');

	// ALTER
	$alter = $smcFunc['db_add_column']('{db_prefix}priv_check', array('name' => 'txt', 'type' => 'varchar', 'size' => 4, 'null' => false, 'default' => ''));

	// DROP
	$drop = $smcFunc['db_drop_table']('{db_prefix}priv_check');

	// Sorry... we need CREATE, ALTER and DROP
	if (!$create || !$alter || !$drop)

		return throw_error('The ' . $databases[$db_type]['name'] . ' user you have set in Settings.php does not have proper privileges.<br><br>Please ask your host to give this user the ALTER, CREATE, and DROP privileges.');

	// Do a quick version spot check.
	$temp = substr(@implode('', @file($boarddir . '/index.php')), 0, 4096);
	preg_match('~\*\s@version\s+(.+)[\s]{2}~i', $temp, $match);
	if (empty($match[1]) || (trim($match[1]) != SMF_VERSION))
		return throw_error('The upgrader found some old or outdated files.<br><br>Please make certain you uploaded the new versions of all the files included in the package.');

	// What absolutely needs to be writable?
	$writable_files = array(
		$boarddir . '/Settings.php',
		$boarddir . '/Settings_bak.php',
		$boarddir . '/db_last_error.php',
		$modSettings['theme_dir'] . '/css/minified.css',
		$modSettings['theme_dir'] . '/scripts/minified.js',
		$modSettings['theme_dir'] . '/scripts/minified_deferred.js',
	);

	// Do we need to add this setting?
	$need_settings_update = empty($modSettings['custom_avatar_dir']);

	$custom_av_dir = !empty($modSettings['custom_avatar_dir']) ? $modSettings['custom_avatar_dir'] : $GLOBALS['boarddir'] .'/custom_avatar';
	$custom_av_url = !empty($modSettings['custom_avatar_url']) ? $modSettings['custom_avatar_url'] : $boardurl .'/custom_avatar';

	// This little fellow has to cooperate...
	quickFileWritable($custom_av_dir);

	// Are we good now?
	if(!is_writable($custom_av_dir))
		return throw_error(sprintf('The directory: %1$s has to be writable to continue the upgrade. Please make sure permissions are correctly set to allow this.', $custom_av_dir));
	elseif ($need_settings_update)
	{
		if (!function_exists('cache_put_data'))
			require_once($sourcedir . '/Load.php');
		updateSettings(array('custom_avatar_dir' => $custom_av_dir));
		updateSettings(array('custom_avatar_url' => $custom_av_url));
	}

	require_once($sourcedir . '/Security.php');

	// Check the cache directory.
	$cachedir_temp = empty($cachedir) ? $boarddir . '/cache' : $cachedir;
	if (!file_exists($cachedir_temp))
		@mkdir($cachedir_temp);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
	if (!file_exists($cachedir_temp))
		return throw_error('The cache directory could not be found.<br><br>Please make sure you have a directory called &quot;cache&quot; in your forum directory before continuing.');

	if (!file_exists($modSettings['theme_dir'] . '/languages/index.' . $upcontext['language'] . '.php') && !isset($modSettings['smfVersion']) && !isset($_GET['lang']))
		return throw_error('The upgrader was unable to find language files for the language specified in Settings.php.<br>SMF will not work without the primary language files installed.<br><br>Please either install them, or <a href="' . $upgradeurl . '?step=0;lang=english">use english instead</a>.');
	elseif (!isset($_GET['skiplang']))
	{
		$temp = substr(@implode('', @file($modSettings['theme_dir'] . '/languages/index.' . $upcontext['language'] . '.php')), 0, 4096);
		preg_match('~(?://|/\*)\s*Version:\s+(.+?);\s*index(?:[\s]{2}|\*/)~i', $temp, $match);

		if (empty($match[1]) || $match[1] != SMF_LANG_VERSION)
			return throw_error('The upgrader found some old or outdated language files, for the forum default language, ' . $upcontext['language'] . '.<br><br>Please make certain you uploaded the new versions of all the files included in the package, even the theme and language files for the default theme.<br>&nbsp;&nbsp;&nbsp;[<a href="' . $upgradeurl . '?skiplang">SKIP</a>] [<a href="' . $upgradeurl . '?lang=english">Try English</a>]');
	}

	if (!makeFilesWritable($writable_files))
		return false;

	// Check agreement.txt. (it may not exist, in which case $boarddir must be writable.)
	if (isset($modSettings['agreement']) && (!is_writable($boarddir) || file_exists($boarddir . '/agreement.txt')) && !is_writable($boarddir . '/agreement.txt'))

		return throw_error('The upgrader was unable to obtain write access to agreement.txt.<br><br>If you are using a linux or unix based server, please ensure that the file is chmod\'d to 777, or if it does not exist that the directory this upgrader is in is 777.<br>If your server is running Windows, please ensure that the internet guest account has the proper permissions on it or its folder.');

	// Upgrade the agreement.
	elseif (isset($modSettings['agreement']))
	{
		$fp = fopen($boarddir . '/agreement.txt', 'w');
		fwrite($fp, $modSettings['agreement']);
		fclose($fp);
	}

	// We're going to check that their board dir setting is right in case they've been moving stuff around.
	if (strtr($boarddir, array('/' => '', '\\' => '')) != strtr(dirname(__FILE__), array('/' => '', '\\' => '')))
		$upcontext['warning'] = '
			It looks as if your board directory settings <em>might</em> be incorrect. Your board directory is currently set to &quot;' . $boarddir . '&quot; but should probably be &quot;' . dirname(__FILE__) . '&quot;. Settings.php currently lists your paths as:<br>
			<ul>
				<li>Board Directory: ' . $boarddir . '</li>
				<li>Source Directory: ' . $boarddir . '</li>
				<li>Cache Directory: ' . $cachedir_temp . '</li>
			</ul>
			If these seem incorrect please open Settings.php in a text editor before proceeding with this upgrade. If they are incorrect due to you moving your forum to a new location please download and execute the <a href="http://download.simplemachines.org/?tools">Repair Settings</a> tool from the Simple Machines website before continuing.';

	// Either we're logged in or we're going to present the login.
	if (checkLogin())
		return true;

	$upcontext += createToken('login');

	return false;
}

// Step 0.5: Does the login work?
function checkLogin()
{
	global $modSettings, $upcontext, $disable_security;
	global $smcFunc, $db_type, $support_js;

	// Are we trying to login?
	if (isset($_POST['contbutt']) && (!empty($_POST['user']) || $disable_security))
	{
		// If we've disabled security pick a suitable name!
		if (empty($_POST['user']))
			$_POST['user'] = 'Administrator';

		// Before 2.0 these column names were different!
		$oldDB = false;
		if (empty($db_type) || $db_type == 'mysql' || $db_type == 'mysqli')
		{
			$request = $smcFunc['db_query']('', '
				SHOW COLUMNS
				FROM {db_prefix}members
				LIKE {string:member_name}',
				array(
					'member_name' => 'memberName',
					'db_error_skip' => true,
				)
			);
			if ($smcFunc['db_num_rows']($request) != 0)
				$oldDB = true;
			$smcFunc['db_free_result']($request);
		}

		// Get what we believe to be their details.
		if (!$disable_security)
		{
			if ($oldDB)
				$request = $smcFunc['db_query']('', '
					SELECT id_member, memberName AS member_name, passwd, id_group,
					additionalGroups AS additional_groups, lngfile
					FROM {db_prefix}members
					WHERE memberName = {string:member_name}',
					array(
						'member_name' => $_POST['user'],
						'db_error_skip' => true,
					)
				);
			else
				$request = $smcFunc['db_query']('', '
					SELECT id_member, member_name, passwd, id_group, additional_groups, lngfile
					FROM {db_prefix}members
					WHERE member_name = {string:member_name}',
					array(
						'member_name' => $_POST['user'],
						'db_error_skip' => true,
					)
				);
			if ($smcFunc['db_num_rows']($request) != 0)
			{
				list ($id_member, $name, $password, $id_group, $addGroups, $user_language) = $smcFunc['db_fetch_row']($request);

				$groups = explode(',', $addGroups);
				$groups[] = $id_group;

				foreach ($groups as $k => $v)
					$groups[$k] = (int) $v;

				$sha_passwd = sha1(strtolower($name) . un_htmlspecialchars($_REQUEST['passwrd']));
			}
			else
				$upcontext['username_incorrect'] = true;
			$smcFunc['db_free_result']($request);
		}
		$upcontext['username'] = $_POST['user'];

		// Track whether javascript works!
		if (!empty($_POST['js_works']))
		{
			$upcontext['upgrade_status']['js'] = 1;
			$support_js = 1;
		}
		else
			$support_js = 0;

		// Note down the version we are coming from.
		if (!empty($modSettings['smfVersion']) && empty($upcontext['user']['version']))
			$upcontext['user']['version'] = $modSettings['smfVersion'];

		// Didn't get anywhere?
		if (!$disable_security && (empty($sha_passwd) || (!empty($password) ? $password : '') != $sha_passwd) && !hash_verify_password((!empty($name) ? $name : ''), $_REQUEST['passwrd'], (!empty($password) ? $password : '')) && empty($upcontext['username_incorrect']))
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
		{
			// MD5?
			$md5pass = md5_hmac($_REQUEST['passwrd'], strtolower($_POST['user']));
			if ($md5pass != $password)
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
			{
				$upcontext['password_failed'] = true;
				// Disable the hashing this time.
				$upcontext['disable_login_hashing'] = true;
			}
		}

		if ((empty($upcontext['password_failed']) && !empty($name)) || $disable_security)
		{
			// Set the password.
			if (!$disable_security)
			{
				// Do we actually have permission?
				if (!in_array(1, $groups))
				{
					$request = $smcFunc['db_query']('', '
						SELECT permission
						FROM {db_prefix}permissions
						WHERE id_group IN ({array_int:groups})
							AND permission = {string:admin_forum}',
						array(
							'groups' => $groups,
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
							'admin_forum' => 'admin_forum',
							'db_error_skip' => true,
						)
					);
					if ($smcFunc['db_num_rows']($request) == 0)
						return throw_error('You need to be an admin to perform an upgrade!');
					$smcFunc['db_free_result']($request);
				}

				$upcontext['user']['id'] = $id_member;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
				$upcontext['user']['name'] = $name;
			}
			else
			{
				$upcontext['user']['id'] = 1;
				$upcontext['user']['name'] = 'Administrator';
			}
			$upcontext['user']['pass'] = mt_rand(0,60000);
			// This basically is used to match the GET variables to Settings.php.
			$upcontext['upgrade_status']['pass'] = $upcontext['user']['pass'];

			// Set the language to that of the user?
			if (isset($user_language) && $user_language != $upcontext['language'] && file_exists($modSettings['theme_dir'] . '/languages/index.' . basename($user_language, '.lng') . '.php'))
			{
				$user_language = basename($user_language, '.lng');
				$temp = substr(@implode('', @file($modSettings['theme_dir'] . '/languages/index.' . $user_language . '.php')), 0, 4096);
				preg_match('~(?://|/\*)\s*Version:\s+(.+?);\s*index(?:[\s]{2}|\*/)~i', $temp, $match);

				if (empty($match[1]) || $match[1] != SMF_LANG_VERSION)
					$upcontext['upgrade_options_warning'] = 'The language files for your selected language, ' . $user_language . ', have not been updated to the latest version. Upgrade will continue with the forum default, ' . $upcontext['language'] . '.';
				elseif (!file_exists($modSettings['theme_dir'] . '/languages/Install.' . basename($user_language, '.lng') . '.php'))
					$upcontext['upgrade_options_warning'] = 'The language files for your selected language, ' . $user_language . ', have not been uploaded/updated as the &quot;Install&quot; language file is missing. Upgrade will continue with the forum default, ' . $upcontext['language'] . '.';
				else
				{
					// Set this as the new language.
					$upcontext['language'] = $user_language;
					$upcontext['upgrade_status']['lang'] = $upcontext['language'];

					// Include the file.
					require_once($modSettings['theme_dir'] . '/languages/Install.' . $user_language . '.php');
				}
			}

			// If we're resuming set the step and substep to be correct.
			if (isset($_POST['cont']))
			{
				$upcontext['current_step'] = $upcontext['user']['step'];
				$_GET['substep'] = $upcontext['user']['substep'];
			}

			return true;
		}
	}

	return false;
}

// Step 1: Do the maintenance and backup.
function UpgradeOptions()
{
	global $db_prefix, $command_line, $modSettings, $is_debug, $smcFunc, $packagesdir, $tasksdir;
	global $boarddir, $boardurl, $sourcedir, $maintenance, $cachedir, $upcontext, $db_type, $db_server, $db_last_error;

	$upcontext['sub_template'] = 'upgrade_options';
	$upcontext['page_title'] = 'Upgrade Options';

	db_extend('packages');
	$upcontext['karma_installed'] = array('good' => false, 'bad' => false);
	$member_columns = $smcFunc['db_list_columns']('{db_prefix}members');

	$upcontext['karma_installed']['good'] = in_array('karma_good', $member_columns);
	$upcontext['karma_installed']['bad'] = in_array('karma_bad', $member_columns);

	unset($member_columns);

	// If we've not submitted then we're done.
	if (empty($_POST['upcont']))
		return false;

	require_once($sourcedir . '/Subs-Admin.php');
	updateSettingsFile(array('image_proxy_secret' => '\'' . substr(sha1(mt_rand()), 0, 20) . '\''));

	// Firstly, if they're enabling SM stat collection just do it.
	if (!empty($_POST['stats']) && substr($boardurl, 0, 16) != 'http://localhost' && empty($modSettings['allow_sm_stats']))
	{
		// Attempt to register the site etc.
		$fp = @fsockopen('www.simplemachines.org', 80, $errno, $errstr);
		if ($fp)
		{
			$out = 'GET /smf/stats/register_stats.php?site=' . base64_encode($boardurl) . ' HTTP/1.1' . "\r\n";
			$out .= 'Host: www.simplemachines.org' . "\r\n";
			$out .= 'Connection: Close' . "\r\n\r\n";
			fwrite($fp, $out);

			$return_data = '';
			while (!feof($fp))
				$return_data .= fgets($fp, 128);

			fclose($fp);

			// Get the unique site ID.
			preg_match('~SITE-ID:\s(\w{10})~', $return_data, $ID);

			if (!empty($ID[1]))

				$smcFunc['db_insert']('replace',
					$db_prefix . 'settings',
					array('variable' => 'string', 'value' => 'string'),
					array('allow_sm_stats', $ID[1]),
					array('variable')
				);
		}
	}
	else
		$smcFunc['db_query']('', '
			DELETE FROM {db_prefix}settings
			WHERE variable = {string:allow_sm_stats}',
			array(
				'allow_sm_stats' => 'allow_sm_stats',
				'db_error_skip' => true,
			)
		);

	// Deleting old karma stuff?
	if (!empty($_POST['delete_karma']))
	{
		// Delete old settings vars.
		$smcFunc['db_query']('', '
			DELETE FROM {db_prefix}settings
			WHERE variable IN ({array_string:karma_vars})',
			array(
				'karma_vars' => array('karmaMode', 'karmaTimeRestrictAdmins', 'karmaWaitTime', 'karmaMinPosts', 'karmaLabel', 'karmaSmiteLabel', 'karmaApplaudLabel'),
			)
		);

		// Cleaning up old karma member settings.
		if ($upcontext['karma_installed']['good'])
			$smcFunc['db_query']('', '
				ALTER TABLE {db_prefix}members
				DROP karma_good',
				array()
			);

		// Does karma bad was enable?
		if ($upcontext['karma_installed']['bad'])
			$smcFunc['db_query']('', '
				ALTER TABLE {db_prefix}members
				DROP karma_bad',
				array()
			);

		// Cleaning up old karma permissions.
		$smcFunc['db_query']('', '
			DELETE FROM {db_prefix}permissions
			WHERE permission = {string:karma_vars}',
			array(
				'karma_vars' => 'karma_edit',
			)
		);
	}

	// Emptying the error log?
	if (!empty($_POST['empty_error']))
		$smcFunc['db_query']('truncate_table', '
			TRUNCATE {db_prefix}log_errors',
			array(
			)
		);

	$changes = array();

	// If we're overriding the language follow it through.
	if (isset($_GET['lang']) && file_exists($modSettings['theme_dir'] . '/languages/index.' . $_GET['lang'] . '.php'))

		$changes['language'] = '\'' . $_GET['lang'] . '\'';

	if (!empty($_POST['maint']))
	{
		$changes['maintenance'] = '2';
		// Remember what it was...
		$upcontext['user']['main'] = $maintenance;

		if (!empty($_POST['maintitle']))
		{
			$changes['mtitle'] = '\'' . addslashes($_POST['maintitle']) . '\'';
			$changes['mmessage'] = '\'' . addslashes($_POST['mainmessage']) . '\'';
		}
		else
		{
			$changes['mtitle'] = '\'Upgrading the forum...\'';
			$changes['mmessage'] = '\'Don\\\'t worry, we will be back shortly with an updated forum.  It will only be a minute ;).\'';
		}
	}

	if ($command_line)
		echo ' * Updating Settings.php...';

	// Backup the current one first.
	copy($boarddir . '/Settings.php', $boarddir . '/Settings_bak.php');

	// Fix some old paths.
	if (substr($boarddir, 0, 1) == '.')

		$changes['boarddir'] = '\'' . fixRelativePath($boarddir) . '\'';

	if (substr($sourcedir, 0, 1) == '.')

		$changes['sourcedir'] = '\'' . fixRelativePath($sourcedir) . '\'';

	if (empty($cachedir) || substr($cachedir, 0, 1) == '.')
		$changes['cachedir'] = '\'' . fixRelativePath($boarddir) . '/cache\'';

	// Not had the database type added before?
	if (empty($db_type))
		$changes['db_type'] = 'mysql';

	// For now we offer a option, this may change in future versions when mysql is completely removed.
	if (!empty($_POST['convertMysql']) && $db_type == 'mysql')
		$changes['db_type'] = '\'mysqli\'';

	// If they have a "host:port" setup for the host, split that into separate values
	// You should never have a : in the hostname if you're not on MySQL, but better safe than sorry
	if (strpos($db_server, ':') !== false && ($db_type == 'mysql' || $db_type == 'mysqli'))
	{
		list($db_server, $db_port) = explode(':', $db_server);

		$changes['db_server'] = '\'' . $db_server . '\'';

		// Only set this if we're not using the default port
		if ($db_port != ini_get('mysql' . ($db_type == 'mysqli' || !empty($_POST['convertMysql']) ? 'i' : '') . '.default_port'))
			$changes['db_port'] = (int) $db_port;
	}
	elseif(!empty($db_port))

	{
		// If db_port is set and is the same as the default, set it to ''
		if ($db_type == 'mysql' || $db_type == 'mysqli')
		{
			if ($db_port == ini_get('mysql' . ($db_type == 'mysqli' || !empty($_POST['convertMysql']) ? 'i' : '') . '.default_port'))
				$changes['db_port'] = '\'\'';
			elseif ($db_type == 'postgresql' && $db_port == 5432)
				$changes['db_port'] = '\'\'';
		}
	}

	// Maybe we haven't had this option yet?
	if (empty($packagesdir))
		$changes['packagesdir'] = '\'' . fixRelativePath($boarddir) . '/Packages\'';

	// Add support for $tasksdir var.
	if (empty($tasksdir))
		$changes['tasksdir'] = '\'' . fixRelativePath($sourcedir) . '/tasks\'';

	// @todo Maybe change the cookie name if going to 1.1, too?

	// Update Settings.php with the new settings.
	changeSettings($changes);

	// Back up again before we do anything else, just in case...
	copy($boarddir . '/Settings.php', $boarddir . '/Settings_bak.php');

	// Read the contents of the file in as a string
	$settings_file = file_get_contents($boarddir . '/Settings.php');

	// Look to see if the new error-catching section is there...
	if (stripos($settings_file, 'if (file_exists(dirname(__FILE__) . \'/db_last_error.php\'))') === false)
	{
		// This is what we want to add...
		$error_catching_header = '
########## Error-Catching ##########
# Note: You shouldn\'t touch these settings.';

		$error_catching = '
if (file_exists(dirname(__FILE__) . \'/db_last_error.php\'))
	include(dirname(__FILE__) . \'/db_last_error.php\');

if (!isset($db_last_error))
{
	// File does not exist so lets try to create it
	file_put_contents(dirname(__FILE__) . \'/db_last_error.php\', \'<\' . \'?\' . "php\n" . \'$db_last_error = 0;\' . "\n" . \'?\' . \'>\');
	$db_last_error = 0;
}
';
		// Before we go any further, check to see if the original code is there first...
		if (stripos('########## Error-Catching ##########', $settings_file !== false))
		{
			$found_old = true;
			// Replace the old line with the new code - assuming the header is already there
			$settings_file = str_replace('$db_last_error = ' . $db_last_error . ';', $error_catching, $settings_file);
		}
		// What about just the db_last_error line?
		elseif (stripos('$db_last_error =', $settings_file !== false))
		{
			$found_old = true;
			// Replace the old line with the new code
			$settings_file = str_replace('$db_last_error = ' . $db_last_error . ';', $error_catching_header . $error_catching, $settings_file);
		}
		else
		{
			$found_old = false;
			// We want the comments as well as the code...
			$error_catching = $error_catching_header . $error_catching;
		}

		// Blank out the file - done to fix a oddity with some servers.
		$fp = fopen($boarddir . '/Settings.php', 'w');
		fclose($fp);

		// Open the file for writing
		$file = fopen($boarddir . '/Settings.php', 'r+');

		// Write the original contents...
		fwrite($file, $settings_file);

		// If we didn't find the old code, add the new code at the end instead...
		if (!$found_old)
		{
			// Go to the position two bytes before the end - in front of the closing PHP tag
			fseek($file, -2, SEEK_END);

			// Append our new data - the extra line break above will prevent us from breaking things...
			fwrite($file, $error_catching);
		}

		// Close the file
		fclose($file);
	}

	if ($command_line)
		echo ' Successful.' . "\n";

	// Are we doing debug?
	if (isset($_POST['debug']))
	{
		$upcontext['upgrade_status']['debug'] = true;
		$is_debug = true;
	}

	// If we're not backing up then jump one.
	if (empty($_POST['backup']))
		$upcontext['current_step']++;

	// If we've got here then let's proceed to the next step!
	return true;
}

// Backup the database - why not...
function BackupDatabase()
{
	global $upcontext, $db_prefix, $command_line, $is_debug, $support_js, $file_steps, $smcFunc;

	$upcontext['sub_template'] = isset($_GET['xml']) ? 'backup_xml' : 'backup_database';
	$upcontext['page_title'] = 'Backup Database';

	// Done it already - js wise?
	if (!empty($_POST['backup_done']))
		return true;

	// Some useful stuff here.
	db_extend();

	// Might need this as well
	db_extend('packages');

	// Get all the table names.
	$filter = str_replace('_', '\_', preg_match('~^`(.+?)`\.(.+?)$~', $db_prefix, $match) != 0 ? $match[2] : $db_prefix) . '%';
	$db = preg_match('~^`(.+?)`\.(.+?)$~', $db_prefix, $match) != 0 ? strtr($match[1], array('`' => '')) : false;
	$tables = $smcFunc['db_list_tables']($db, $filter);

	$table_names = array();
	foreach ($tables as $table)
		if (substr($table, 0, 7) !== 'backup_')
			$table_names[] = $table;

	$upcontext['table_count'] = count($table_names);
	$upcontext['cur_table_num'] = $_GET['substep'];
	$upcontext['cur_table_name'] = str_replace($db_prefix, '', isset($table_names[$_GET['substep']]) ? $table_names[$_GET['substep']] : $table_names[0]);
	$upcontext['step_progress'] = (int) (($upcontext['cur_table_num'] / $upcontext['table_count']) * 100);
	// For non-java auto submit...
	$file_steps = $upcontext['table_count'];

	// What ones have we already done?
	foreach ($table_names as $id => $table)

		if ($id < $_GET['substep'])
			$upcontext['previous_tables'][] = $table;

	if ($command_line)
		echo 'Backing Up Tables.';

	// If we don't support javascript we backup here.
	if (!$support_js || isset($_GET['xml']))
	{
		// Backup each table!
		for ($substep = $_GET['substep'], $n = count($table_names); $substep < $n; $substep++)
		{
			$upcontext['cur_table_name'] = str_replace($db_prefix, '', (isset($table_names[$substep + 1]) ? $table_names[$substep + 1] : $table_names[$substep]));
			$upcontext['cur_table_num'] = $substep + 1;

			$upcontext['step_progress'] = (int) (($upcontext['cur_table_num'] / $upcontext['table_count']) * 100);

			// Do we need to pause?
			nextSubstep($substep);

			backupTable($table_names[$substep]);

			// If this is XML to keep it nice for the user do one table at a time anyway!
			if (isset($_GET['xml']))
				return upgradeExit();
		}

		if ($command_line)
		{
			echo "\n" . ' Successful.\'' . "\n";
			flush();
		}
		$upcontext['step_progress'] = 100;

		$_GET['substep'] = 0;
		// Make sure we move on!
		return true;
	}

	// Either way next place to post will be database changes!
	$_GET['substep'] = 0;
	return false;
}

// Backup one table...
function backupTable($table)
{
	global $is_debug, $command_line, $db_prefix, $smcFunc;

	if ($command_line)
	{
		echo "\n" . ' +++ Backing up \"' . str_replace($db_prefix, '', $table) . '"...';
		flush();
	}

	$smcFunc['db_backup_table']($table, 'backup_' . $table);

	if ($command_line)
		echo ' done.';
}

// Step 2: Everything.
function DatabaseChanges()
{
	global $db_prefix, $modSettings, $command_line, $smcFunc;
	global $upcontext, $support_js, $db_type;

	// Have we just completed this?
	if (!empty($_POST['database_done']))
		return true;

	$upcontext['sub_template'] = isset($_GET['xml']) ? 'database_xml' : 'database_changes';
	$upcontext['page_title'] = 'Database Changes';

	$type = ($db_type == 'mysqli' ? 'mysql' : $db_type);

	// All possible files.
	// Name, <version, insert_on_complete
	$files = array(
		array('upgrade_1-0.sql', '1.1', '1.1 RC0'),
		array('upgrade_1-1.sql', '2.0', '2.0 a'),
		array('upgrade_2-0_' . $type . '.sql', '2.1', '2.1 dev0'),
		array('upgrade_2-1_' . $type . '.sql', '3.0', SMF_VERSION),
	);

	// How many files are there in total?
	if (isset($_GET['filecount']))
		$upcontext['file_count'] = (int) $_GET['filecount'];
	else
	{
		$upcontext['file_count'] = 0;
		foreach ($files as $file)
		{
			if (!isset($modSettings['smfVersion']) || $modSettings['smfVersion'] < $file[1])
				$upcontext['file_count']++;
		}
	}

	// Do each file!
	$did_not_do = count($files) - $upcontext['file_count'];
	$upcontext['step_progress'] = 0;
	$upcontext['cur_file_num'] = 0;
	foreach ($files as $file)
	{
		if ($did_not_do)
			$did_not_do--;
		else
		{
			$upcontext['cur_file_num']++;
			$upcontext['cur_file_name'] = $file[0];
			// Do we actually need to do this still?
			if (!isset($modSettings['smfVersion']) || $modSettings['smfVersion'] < $file[1])
			{
				$nextFile = parse_sql(dirname(__FILE__) . '/' . $file[0]);
				if ($nextFile)

				{
					// Only update the version of this if complete.
					$smcFunc['db_insert']('replace',
						$db_prefix . 'settings',
						array('variable' => 'string', 'value' => 'string'),
						array('smfVersion', $file[2]),
						array('variable')
					);

					$modSettings['smfVersion'] = $file[2];
				}

				// If this is XML we only do this stuff once.
				if (isset($_GET['xml']))
				{
					// Flag to move on to the next.
					$upcontext['completed_step'] = true;
					// Did we complete the whole file?
					if ($nextFile)
						$upcontext['current_debug_item_num'] = -1;
					return upgradeExit();
				}
				elseif ($support_js)
					break;
			}
			// Set the progress bar to be right as if we had - even if we hadn't...
			$upcontext['step_progress'] = ($upcontext['cur_file_num'] / $upcontext['file_count']) * 100;
		}
	}

	$_GET['substep'] = 0;
	// So the template knows we're done.
	if (!$support_js)
	{
		$upcontext['changes_complete'] = true;

		return true;
	}
	return false;
}

// Clean up any mods installed...
function CleanupMods()
{
	global $db_prefix, $upcontext, $boarddir, $packagesdir, $settings, $smcFunc, $command_line;

	// Sorry. Not supported for command line users.
	if ($command_line)
		return true;

	// Skipping first?
	if (!empty($_POST['skip']))
	{
		unset($_POST['skip']);
		return true;
	}

	// If we get here withOUT SSI we need to redirect to ensure we get it!
	if (!isset($_GET['ssi']) || !function_exists('mktree'))
		redirectLocation('&ssi=1');

	$upcontext['sub_template'] = 'clean_mods';
	$upcontext['page_title'] = 'Cleanup Modifications';

	// This can be skipped.
	$upcontext['skip'] = true;

	// If we're on the second redirect continue...
	if (isset($_POST['cleandone2']))
		return true;

	// Do we already know about some writable files?
	if (isset($_POST['writable_files']))
	{
		$writable_files = safe_unserialize(base64_decode($_POST['writable_files']));
		if (!makeFilesWritable($writable_files))
		{
			// What have we left?
			$upcontext['writable_files'] = $writable_files;
			return false;
		}
	}

	// Make sure we have some sort of packages directory.
	if (!isset($packagesdir))
		$packagesdir = $boarddir . '/Packages';

	// Load all theme paths....
	$request = $smcFunc['db_query']('', '
		SELECT id_theme, variable, value
		FROM {db_prefix}themes
		WHERE id_member = {int:id_member}
			AND variable IN ({string:theme_dir}, {string:images_url})',
		array(
			'id_member' => 0,
			'theme_dir' => 'theme_dir',
			'images_url' => 'images_url',
			'db_error_skip' => true,
		)
	);
	$theme_paths = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		if ($row['id_theme'] == 1)
			$settings['default_' . $row['variable']] = $row['value'];
		elseif ($row['variable'] == 'theme_dir')
			$theme_paths[$row['id_theme']][$row['variable']] = $row['value'];
	}
	$smcFunc['db_free_result']($request);

	// Are there are mods installed that may need uninstalling?
	$request = $smcFunc['db_query']('', '
		SELECT id_install, filename, name, themes_installed, version
		FROM {db_prefix}log_packages
		WHERE install_state = {int:installed}
		ORDER BY time_installed DESC',
		array(
			'installed' => 1,
			'db_error_skip' => true,
		)
	);
	$upcontext['packages'] = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// Work out the status.
		if (!file_exists($packagesdir . '/' . $row['filename']))
		{
			$status = 'Missing';
			$status_color = 'red';
			$result = 'Removed';
		}
		else
		{
			$status = 'Installed';
			$status_color = 'green';
			$result = 'No Action Needed';
		}

		$upcontext['packages'][$row['id_install']] = array(
			'id' => $row['id_install'],
			'themes' => explode(',', $row['themes_installed']),
			'name' => $row['name'],
			'filename' => $row['filename'],
			'missing_file' => file_exists($packagesdir . '/' . $row['filename']) ? 0 : 1,
			'files' => array(),
			'file_count' => 0,
			'status' => $status,
			'result' => $result,
			'color' => $status_color,
			'version' => $row['version'],
			'needs_removing' => false,
		);
	}
	$smcFunc['db_free_result']($request);

	// Don't carry on if there are none.
	if (empty($upcontext['packages']))
		return true;

	// Setup some basics.
	if (!empty($upcontext['user']['version']))
		$_SESSION['version_emulate'] = $upcontext['user']['version'];

	// Before we get started, don't report notice errors.
	$oldErrorReporting = error_reporting(E_ALL ^ E_NOTICE);

	if (!mktree($packagesdir . '/temp', 0755))
	{
		deltree($packagesdir . '/temp', false);
		if (!mktree($packagesdir . '/temp', 0777))
		{
			deltree($packagesdir . '/temp', false);
			// @todo Error here - plus chmod!
		}
	}

	// Anything which reinstalled should not have its entry removed.
	$reinstall_worked = array();

	// We're gonna be doing some removin'
	$test = isset($_POST['cleandone']) ? false : true;
	foreach ($upcontext['packages'] as $id => $package)
	{
		// Can't do anything about this....
		if ($package['missing_file'])
			continue;

		// Not testing *and* this wasn't checked?
		if (!$test && (!isset($_POST['remove']) || !isset($_POST['remove'][$id])))
			continue;

		// What are the themes this was installed into?
		$cur_theme_paths = array();
		foreach ($theme_paths as $tid => $data)
			if ($tid != 1 && in_array($tid, $package['themes']))
				$cur_theme_paths[$tid] = $data;

		// Get the modifications data if applicable.
		$filename = $package['filename'];
		$packageInfo = getPackageInfo($filename);
		if (!is_array($packageInfo))
			continue;

		$info = parsePackageInfo($packageInfo['xml'], $test, 'uninstall');
		// Also get the reinstall details...
		if (isset($_POST['remove']))
			$infoInstall = parsePackageInfo($packageInfo['xml'], true);

		if (is_file($packagesdir . '/' . $filename))

			read_tgz_file($packagesdir . '/' . $filename, $packagesdir . '/temp');
		else
			copytree($packagesdir . '/' . $filename, $packagesdir . '/temp');

		// Work out how we uninstall...
		$files = array();
		foreach ($info as $change)
		{
			// Work out two things:
			// 1) Whether it's installed at the moment - and if so whether its fully installed, and:
			// 2) Whether it could be installed on the new version.
			if ($change['type'] == 'modification')
			{
				$contents = @file_get_contents($packagesdir . '/temp/' . $upcontext['base_path'] . $change['filename']);
				if ($change['boardmod'])
					$results = parseBoardMod($contents, $test, $change['reverse'], $cur_theme_paths);
				else
					$results = parseModification($contents, $test, $change['reverse'], $cur_theme_paths);

				foreach ($results as $action)
				{
					// Something we can remove? Probably means it existed!
					if (($action['type'] == 'replace' || $action['type'] == 'append' || (!empty($action['filename']) && $action['type'] == 'failure')) && !in_array($action['filename'], $files))
						$files[] = $action['filename'];
					if ($action['type'] == 'failure')
					{
						$upcontext['packages'][$id]['needs_removing'] = true;
						$upcontext['packages'][$id]['status'] = 'Reinstall Required';
						$upcontext['packages'][$id]['color'] = '#FD6435';
					}
				}
			}
		}

		// Store this info for the template as appropriate.
		$upcontext['packages'][$id]['files'] = $files;
		$upcontext['packages'][$id]['file_count'] = count($files);

		// If we've done something save the changes!
		if (!$test)
			package_flush_cache();

		// Are we attempting to reinstall this thing?
		if (isset($_POST['remove']) && !$test && isset($infoInstall))
		{
			// Need to extract again I'm afraid.
			if (is_file($packagesdir . '/' . $filename))

				read_tgz_file($packagesdir . '/' . $filename, $packagesdir . '/temp');
			else
				copytree($packagesdir . '/' . $filename, $packagesdir . '/temp');

			$errors = false;
			$upcontext['packages'][$id]['result'] = 'Removed';
			foreach ($infoInstall as $change)
			{
				if ($change['type'] == 'modification')
				{
					$contents = @file_get_contents($packagesdir . '/temp/' . $upcontext['base_path'] . $change['filename']);
					if ($change['boardmod'])

						$results = parseBoardMod($contents, true, $change['reverse'], $cur_theme_paths);
					else
						$results = parseModification($contents, true, $change['reverse'], $cur_theme_paths);

					// Are there any errors?
					foreach ($results as $action)
						if ($action['type'] == 'failure')
							$errors = true;
				}
			}
			if (!$errors)
			{
				$reinstall_worked[] = $id;
				$upcontext['packages'][$id]['result'] = 'Reinstalled';
				$upcontext['packages'][$id]['color'] = 'green';
				foreach ($infoInstall as $change)
				{
					if ($change['type'] == 'modification')
					{
						$contents = @file_get_contents($packagesdir . '/temp/' . $upcontext['base_path'] . $change['filename']);
						if ($change['boardmod'])

							$results = parseBoardMod($contents, false, $change['reverse'], $cur_theme_paths);
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
						else
							$results = parseModification($contents, false, $change['reverse'], $cur_theme_paths);
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
					}
				}

				// Save the changes.
				package_flush_cache();
			}
		}
	}

	// Put errors back on a sec.
	error_reporting($oldErrorReporting);

	// Check everything is writable.
	if ($test && !empty($upcontext['packages']))
	{
		$writable_files = array();
		foreach ($upcontext['packages'] as $package)
		{
			if (!empty($package['files']))
				foreach ($package['files'] as $file)
					$writable_files[] = $file;
		}

		if (!empty($writable_files))
		{
			$writable_files = array_unique($writable_files);
			$upcontext['writable_files'] = $writable_files;

			if (!makeFilesWritable($writable_files))
				return false;
		}
	}

	if (file_exists($packagesdir . '/temp'))
		deltree($packagesdir . '/temp');

	// Removing/Reinstalling any packages?
	if (isset($_POST['remove']))
	{
		$deletes = array();
		foreach ($_POST['remove'] as $id => $dummy)
		{
			if (!in_array((int) $id, $reinstall_worked))
				$deletes[] = (int) $id;
		}

		if (!empty($deletes))
			upgrade_query( '
				UPDATE ' . $db_prefix . 'log_packages
				SET install_state = 0
				WHERE id_install IN (' . implode(',', $deletes) . ')');

		// Ensure we don't lose our changes!
		package_put_contents($packagesdir . '/installed.list', time());

		$upcontext['sub_template'] = 'cleanup_done';
		return false;
	}
	else
	{
		$allgood = true;
		// Is there actually anything that needs our attention?
		foreach ($upcontext['packages'] as $package)
$collection = json_decode($data, true);
if ( ! is_array($collection)) {
    throw new \RuntimeException('$collection must be an array.');
}

foreach ($collection as $item) { /** ... */ }
			if ($package['color'] != 'green')
				$allgood = false;

		if ($allgood)
			return true;
	}

	$_GET['substep'] = 0;
	return isset($_POST['cleandone']) ? true : false;
}


// Delete the damn thing!
function DeleteUpgrade()
{
	global $command_line, $language, $upcontext, $boarddir, $sourcedir, $forum_version, $user_info, $maintenance, $smcFunc, $db_type;

	// Now it's nice to have some of the basic SMF source files.
	if (!isset($_GET['ssi']) && !$command_line)
		redirectLocation('&ssi=1');

	$upcontext['sub_template'] = 'upgrade_complete';
	$upcontext['page_title'] = 'Upgrade Complete';

	$endl = $command_line ? "\n" : '<br>' . "\n";

	$changes = array(
		'language' => '\'' . (substr($language, -4) == '.lng' ? substr($language, 0, -4) : $language) . '\'',
		'db_error_send' => '1',
		'upgradeData' => '#remove#',
	);

	// Are we in maintenance mode?
	if (isset($upcontext['user']['main']))
	{
		if ($command_line)
			echo ' * ';
		$upcontext['removed_maintenance'] = true;
		$changes['maintenance'] = $upcontext['user']['main'];
	}
	// Otherwise if somehow we are in 2 let's go to 1.
	elseif (!empty($maintenance) && $maintenance == 2)
		$changes['maintenance'] = 1;

	// Wipe this out...
	$upcontext['user'] = array();

	// Make a backup of Settings.php first as otherwise earlier changes are lost.
	copy($boarddir . '/Settings.php', $boarddir . '/Settings_bak.php');
	changeSettings($changes);

	// Clean any old cache files away.
	clean_cache();

	// Can we delete the file?
	$upcontext['can_delete_script'] = is_writable(dirname(__FILE__)) || is_writable(__FILE__);

	// Now is the perfect time to fetch the SM files.
	if ($command_line)
		cli_scheduled_fetchSMfiles();
	else
	{
		require_once($sourcedir . '/ScheduledTasks.php');
		$forum_version = SMF_VERSION;  // The variable is usually defined in index.php so lets just use the constant to do it for us.
		scheduled_fetchSMfiles(); // Now go get those files!
	}

	// Log what we've done.
	if (empty($user_info['id']))
		$user_info['id'] = !empty($upcontext['user']['id']) ? $upcontext['user']['id'] : 0;

	// Log the action manually, so CLI still works.
	$smcFunc['db_insert']('',
		'{db_prefix}log_actions',
		array(
			'log_time' => 'int', 'id_log' => 'int', 'id_member' => 'int', 'ip' => 'inet', 'action' => 'string',
			'id_board' => 'int', 'id_topic' => 'int', 'id_msg' => 'int', 'extra' => 'string-65534',
		),
		array(
			time(), 3, $user_info['id'], $command_line ? '127.0.0.1' : $user_info['ip'], 'upgrade',
			0, 0, 0, safe_serialize(array('version' => $forum_version, 'member' => $user_info['id'])),
		),
		array('id_action')
	);
	$user_info['id'] = 0;

	// Save the current database version.
	$server_version = $smcFunc['db_server_info']();
	if (($db_type == 'mysql' || $db_type == 'mysqli') && in_array(substr($server_version, 0, 6), array('5.0.50', '5.0.51')))

		updateSettings(array('db_mysql_group_by_fix' => '1'));

	if ($command_line)
	{
		echo $endl;
		echo 'Upgrade Complete!', $endl;
		echo 'Please delete this file as soon as possible for security reasons.', $endl;
		exit;
	}

	// Make sure it says we're done.
	$upcontext['overall_percent'] = 100;
	if (isset($upcontext['step_progress']))
		unset($upcontext['step_progress']);

	$_GET['substep'] = 0;
	return false;
}

// Just like the built in one, but setup for CLI to not use themes.
function cli_scheduled_fetchSMfiles()
{
	global $sourcedir, $language, $forum_version, $modSettings, $smcFunc;

	if (empty($modSettings['time_format']))
		$modSettings['time_format'] = '%B %d, %Y, %I:%M:%S %p';

	// What files do we want to get
	$request = $smcFunc['db_query']('', '
		SELECT id_file, filename, path, parameters
		FROM {db_prefix}admin_info_files',
		array(
		)
	);

	$js_files = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))

	{
		$js_files[$row['id_file']] = array(
			'filename' => $row['filename'],
			'path' => $row['path'],
			'parameters' => sprintf($row['parameters'], $language, urlencode($modSettings['time_format']), urlencode($forum_version)),
		);
	}
	$smcFunc['db_free_result']($request);

	// We're gonna need fetch_web_data() to pull this off.
	require_once($sourcedir . '/Subs-Package.php');

	foreach ($js_files as $ID_FILE => $file)
	{
		// Create the url
		$server = empty($file['path']) || substr($file['path'], 0, 7) != 'http://' ? 'http://www.simplemachines.org' : '';
		$url = $server . (!empty($file['path']) ? $file['path'] : $file['path']) . $file['filename'] . (!empty($file['parameters']) ? '?' . $file['parameters'] : '');

		// Get the file
		$file_data = fetch_web_data($url);

		// If we got an error - give up - the site might be down.
		if ($file_data === false)
			return throw_error(sprintf('Could not retrieve the file %1$s.', $url));

		// Save the file to the database.
		$smcFunc['db_query']('substring', '
			UPDATE {db_prefix}admin_info_files
			SET data = SUBSTRING({string:file_data}, 1, 65534)
			WHERE id_file = {int:id_file}',
			array(
				'id_file' => $ID_FILE,
				'file_data' => $file_data,
			)
		);
	}
	return true;
}

function convertSettingsToTheme()
{
	global $db_prefix, $modSettings, $smcFunc;

	$values = array(
		'show_latest_member' => @$GLOBALS['showlatestmember'],
		'show_bbc' => isset($GLOBALS['showyabbcbutt']) ? $GLOBALS['showyabbcbutt'] : @$GLOBALS['showbbcbutt'],
		'show_modify' => @$GLOBALS['showmodify'],
		'show_user_images' => @$GLOBALS['showuserpic'],
		'show_blurb' => @$GLOBALS['showusertext'],
		'show_gender' => @$GLOBALS['showgenderimage'],
		'show_newsfader' => @$GLOBALS['shownewsfader'],
		'display_recent_bar' => @$GLOBALS['Show_RecentBar'],
		'show_member_bar' => @$GLOBALS['Show_MemberBar'],
		'linktree_link' => @$GLOBALS['curposlinks'],
		'show_profile_buttons' => @$GLOBALS['profilebutton'],
		'show_mark_read' => @$GLOBALS['showmarkread'],
		'newsfader_time' => @$GLOBALS['fadertime'],
		'use_image_buttons' => empty($GLOBALS['MenuType']) ? 1 : 0,
		'enable_news' => @$GLOBALS['enable_news'],
		'return_to_post' => @$modSettings['returnToPost'],
	);

	$themeData = array();
	foreach ($values as $variable => $value)
	{
		if (!isset($value) || $value === null)
			$value = 0;

		$themeData[] = array(0, 1, $variable, $value);
	}
	if (!empty($themeData))
	{
		$smcFunc['db_insert']('ignore',
			$db_prefix . 'themes',
			array('id_member' => 'int', 'id_theme' => 'int', 'variable' => 'string', 'value' => 'string'),
			$themeData,
			array('id_member', 'id_theme', 'variable')
		);
	}
}

// This function only works with MySQL but that's fine as it is only used for v1.0.
function convertSettingstoOptions()
{
	global $modSettings, $smcFunc;

	// Format: new_setting -> old_setting_name.
	$values = array(
		'calendar_start_day' => 'cal_startmonday',
		'view_newest_first' => 'viewNewestFirst',
		'view_newest_pm_first' => 'viewNewestFirst',
	);

	foreach ($values as $variable => $value)
	{
		if (empty($modSettings[$value[0]]))
			continue;

		$smcFunc['db_query']('', '
			INSERT IGNORE INTO {db_prefix}themes
				(id_member, id_theme, variable, value)
			SELECT id_member, 1, {string:variable}, {string:value}
			FROM {db_prefix}members',
			array(
				'variable' => $variable,
				'value' => $modSettings[$value[0]],
				'db_error_skip' => true,
			)
		);

		$smcFunc['db_query']('', '
			INSERT IGNORE INTO {db_prefix}themes
				(id_member, id_theme, variable, value)
			VALUES (-1, 1, {string:variable}, {string:value})',
			array(
				'variable' => $variable,
				'value' => $modSettings[$value[0]],
				'db_error_skip' => true,
			)
		);
	}
}

function changeSettings($config_vars)
{
	global $boarddir;

	$settingsArray = file($boarddir . '/Settings_bak.php');

	if (count($settingsArray) == 1)
		$settingsArray = preg_split('~[\r\n]~', $settingsArray[0]);

	for ($i = 0, $n = count($settingsArray); $i < $n; $i++)
	{
		// Don't trim or bother with it if it's not a variable.
		if (substr($settingsArray[$i], 0, 1) == '$')
		{
			$settingsArray[$i] = trim($settingsArray[$i]) . "\n";

			foreach ($config_vars as $var => $val)
			{
				if (isset($settingsArray[$i]) && strncasecmp($settingsArray[$i], '$' . $var, 1 + strlen($var)) == 0)
				{
					if ($val == '#remove#')

						unset($settingsArray[$i]);
					else
					{
						$comment = strstr(substr($settingsArray[$i], strpos($settingsArray[$i], ';')), '#');
						$settingsArray[$i] = '$' . $var . ' = ' . $val . ';' . ($comment != '' ? "\t\t" . $comment : "\n");
					}

					unset($config_vars[$var]);
				}
			}
		}
		if (isset($settingsArray[$i]))

		{
			if (trim(substr($settingsArray[$i], 0, 2)) == '?' . '>')
				$end = $i;
		}
	}

	// Assume end-of-file if the end wasn't found.
	if (empty($end) || $end < 10)
		$end = count($settingsArray);

	if (!empty($config_vars))

	{
		$settingsArray[$end++] = '';
		foreach ($config_vars as $var => $val)
		{
			if ($val != '#remove#')
				$settingsArray[$end++] = '$' . $var . ' = ' . $val . ';' . "\n";
		}
	}
	// This should be the last line and even last bytes of the file.
	$settingsArray[$end] = '?' . '>';

	// Blank out the file - done to fix a oddity with some servers.
	$fp = fopen($boarddir . '/Settings.php', 'w');
	fclose($fp);

	$fp = fopen($boarddir . '/Settings.php', 'r+');
	for ($i = 0; $i < $end; $i++)
	{
		if (isset($settingsArray[$i]))
			fwrite($fp, strtr($settingsArray[$i], "\r", ''));
	}
	fwrite($fp, rtrim($settingsArray[$i]));
	fclose($fp);
}
function updateLastError()
{
	// clear out the db_last_error file
	file_put_contents(dirname(__FILE__) . '/db_last_error.php', '<' . '?' . "php\n" . '$db_last_error = 0;' . "\n" . '?' . '>');
}

function php_version_check()
{
	return version_compare(PHP_VERSION, $GLOBALS['required_php_version'], '>=');
}

function db_version_check()
{
	global $db_type, $databases;

	$curver = eval($databases[$db_type]['version_check']);
	$curver = preg_replace('~\-.+?$~', '', $curver);

	return version_compare($databases[$db_type]['version'], $curver, '<=');
}

function getMemberGroups()
{
	global $smcFunc;
	static $member_groups = array();

	if (!empty($member_groups))
		return $member_groups;

	$request = $smcFunc['db_query']('', '
		SELECT group_name, id_group
		FROM {db_prefix}membergroups
		WHERE id_group = {int:admin_group} OR id_group > {int:old_group}',
		array(
			'admin_group' => 1,
			'old_group' => 7,
			'db_error_skip' => true,
		)
	);
	if ($request === false)
	{
		$request = $smcFunc['db_query']('', '
			SELECT membergroup, id_group
			FROM {db_prefix}membergroups
			WHERE id_group = {int:admin_group} OR id_group > {int:old_group}',
			array(
				'admin_group' => 1,
				'old_group' => 7,
				'db_error_skip' => true,
			)
		);
	}
	while ($row = $smcFunc['db_fetch_row']($request))
		$member_groups[trim($row[0])] = $row[1];
	$smcFunc['db_free_result']($request);

	return $member_groups;
}

function fixRelativePath($path)
{
	global $install_path;

	// Fix the . at the start, clear any duplicate slashes, and fix any trailing slash...
	return addslashes(preg_replace(array('~^\.([/\\\]|$)~', '~[/]+~', '~[\\\]+~', '~[/\\\]$~'), array($install_path . '$1', '/', '\\', ''), $path));
}

function parse_sql($filename)
{
	global $db_prefix, $db_collation, $boarddir, $boardurl, $command_line, $file_steps, $step_progress, $custom_warning;
	global $upcontext, $support_js, $is_debug, $smcFunc, $databases, $db_type, $db_character_set;

/*
	Failure allowed on:
		- INSERT INTO but not INSERT IGNORE INTO.
		- UPDATE IGNORE but not UPDATE.
		- ALTER TABLE and ALTER IGNORE TABLE.
		- DROP TABLE.
	Yes, I realize that this is a bit confusing... maybe it should be done differently?

	If a comment...
		- begins with --- it is to be output, with a break only in debug mode. (and say successful\n\n if there was one before.)
		- begins with ---# it is a debugging statement, no break - only shown at all in debug.
		- is only ---#, it is "done." and then a break - only shown in debug.
		- begins with ---{ it is a code block terminating at ---}.

	Every block of between "--- ..."s is a step.  Every "---#" section represents a substep.

	Replaces the following variables:
		- {$boarddir}
		- {$boardurl}
		- {$db_prefix}
		- {$db_collation}
*/

	// May want to use extended functionality.
	db_extend();
	db_extend('packages');

	// Our custom error handler - does nothing but does stop public errors from XML!
	if (!function_exists('sql_error_handler'))
	{
		function sql_error_handler($errno, $errstr, $errfile, $errline)

		{
			global $support_js;

			if ($support_js)
				return true;
			else
				echo 'Error: ' . $errstr . ' File: ' . $errfile . ' Line: ' . $errline;
		}
	}

	// Make our own error handler.
	set_error_handler('sql_error_handler');

	// If we're on MySQL supporting collations then let's find out what the members table uses and put it in a global var - to allow upgrade script to match collations!
	if (!empty($databases[$db_type]['utf8_support']) && version_compare($databases[$db_type]['utf8_version'], eval($databases[$db_type]['utf8_version_check']), '>'))
	{
		$request = $smcFunc['db_query']('', '
			SHOW TABLE STATUS
			LIKE {string:table_name}',
			array(
				'table_name' => "{$db_prefix}members",
				'db_error_skip' => true,
			)
		);
		if ($smcFunc['db_num_rows']($request) === 0)
			die('Unable to find members table!');
		$table_status = $smcFunc['db_fetch_assoc']($request);
		$smcFunc['db_free_result']($request);

		if (!empty($table_status['Collation']))
		{
			$request = $smcFunc['db_query']('', '
				SHOW COLLATION
				LIKE {string:collation}',
				array(
					'collation' => $table_status['Collation'],
					'db_error_skip' => true,
				)
			);
			// Got something?
			if ($smcFunc['db_num_rows']($request) !== 0)
				$collation_info = $smcFunc['db_fetch_assoc']($request);
			$smcFunc['db_free_result']($request);

			// Excellent!
			if (!empty($collation_info['Collation']) && !empty($collation_info['Charset']))
				$db_collation = ' CHARACTER SET ' . $collation_info['Charset'] . ' COLLATE ' . $collation_info['Collation'];
		}
	}
	if (empty($db_collation))
		$db_collation = '';

	$endl = $command_line ? "\n" : '<br>' . "\n";

	$lines = file($filename);

	$current_type = 'sql';
	$current_data = '';
	$substep = 0;
	$last_step = '';

	// Make sure all newly created tables will have the proper characters set.
	if (isset($db_character_set) && $db_character_set === 'utf8')
		$lines = str_replace(') ENGINE=MyISAM;', ') ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci;', $lines);

	// Count the total number of steps within this file - for progress.
	$file_steps = substr_count(implode('', $lines), '---#');
	$upcontext['total_items'] = substr_count(implode('', $lines), '--- ');
	$upcontext['debug_items'] = $file_steps;
	$upcontext['current_item_num'] = 0;
	$upcontext['current_item_name'] = '';
	$upcontext['current_debug_item_num'] = 0;
	$upcontext['current_debug_item_name'] = '';
	// This array keeps a record of what we've done in case java is dead...
	$upcontext['actioned_items'] = array();

	$done_something = false;

	foreach ($lines as $line_number => $line)
	{
		$do_current = $substep >= $_GET['substep'];

		// Get rid of any comments in the beginning of the line...
		if (substr(trim($line), 0, 2) === '/*')
			$line = preg_replace('~/\*.+?\*/~', '', $line);

		// Always flush.  Flush, flush, flush.  Flush, flush, flush, flush!  FLUSH!
		if ($is_debug && !$support_js && $command_line)
			flush();

		if (trim($line) === '')
			continue;

		if (trim(substr($line, 0, 3)) === '---')
		{
			$type = substr($line, 3, 1);

			// An error??
			if (trim($current_data) != '' && $type !== '}')
			{
				$upcontext['error_message'] = 'Error in upgrade script - line ' . $line_number . '!' . $endl;
				if ($command_line)
					echo $upcontext['error_message'];
			}

			if ($type == ' ')
			{
				if (!$support_js && $do_current && $_GET['substep'] != 0 && $command_line)
				{
					echo ' Successful.', $endl;
					flush();
				}

				$last_step = htmlspecialchars(rtrim(substr($line, 4)));
				$upcontext['current_item_num']++;
				$upcontext['current_item_name'] = $last_step;

				if ($do_current)
				{
					$upcontext['actioned_items'][] = $last_step;
					if ($command_line)
						echo ' * ';
				}
			}
			elseif ($type == '#')
			{
				$upcontext['step_progress'] += (100 / $upcontext['file_count']) / $file_steps;

				$upcontext['current_debug_item_num']++;
				if (trim($line) != '---#')
					$upcontext['current_debug_item_name'] = htmlspecialchars(rtrim(substr($line, 4)));

				// Have we already done something?
				if (isset($_GET['xml']) && $done_something)
				{
					restore_error_handler();
					return $upcontext['current_debug_item_num'] >= $upcontext['debug_items'] ? true : false;
				}

				if ($do_current)
				{
					if (trim($line) == '---#' && $command_line)
						echo ' done.', $endl;
					elseif ($command_line)
						echo ' +++ ', rtrim(substr($line, 4));
					elseif (trim($line) != '---#')
					{
						if ($is_debug)
							$upcontext['actioned_items'][] = htmlspecialchars(rtrim(substr($line, 4)));
					}
				}

				if ($substep < $_GET['substep'] && $substep + 1 >= $_GET['substep'])
				{
					if ($command_line)
						echo ' * ';
					else
						$upcontext['actioned_items'][] = $last_step;
				}

				// Small step - only if we're actually doing stuff.
				if ($do_current)
					nextSubstep(++$substep);
				else
					$substep++;
			}
			elseif ($type == '{')
				$current_type = 'code';
			elseif ($type == '}')
			{
				$current_type = 'sql';

				if (!$do_current)
				{
					$current_data = '';
					continue;
				}

				if (eval('global $db_prefix, $modSettings, $smcFunc; ' . $current_data) === false)
				{
					$upcontext['error_message'] = 'Error in upgrade script ' . basename($filename) . ' on line ' . $line_number . '!' . $endl;
					if ($command_line)
						echo $upcontext['error_message'];
				}

				// Done with code!
				$current_data = '';
				$done_something = true;
			}

			continue;
		}

		$current_data .= $line;
		if (substr(rtrim($current_data), -1) === ';' && $current_type === 'sql')
		{
			if ((!$support_js || isset($_GET['xml'])))
			{
				if (!$do_current)
				{
					$current_data = '';
					continue;
				}

				$current_data = strtr(substr(rtrim($current_data), 0, -1), array('{$db_prefix}' => $db_prefix, '{$boarddir}' => $boarddir, '{$sboarddir}' => addslashes($boarddir), '{$boardurl}' => $boardurl, '{$db_collation}' => $db_collation));

				upgrade_query($current_data);

				// @todo This will be how it kinda does it once mysql all stripped out - needed for postgre (etc).
				/*
				$result = $smcFunc['db_query']('', $current_data, false, false);
				// Went wrong?
				if (!$result)
				{
					// Bit of a bodge - do we want the error?
					if (!empty($upcontext['return_error']))
					{
						$upcontext['error_message'] = $smcFunc['db_error']($db_connection);
						return false;
					}
				}*/
				$done_something = true;
			}
			$current_data = '';
		}
		// If this is xml based and we're just getting the item name then that's grand.
		elseif ($support_js && !isset($_GET['xml']) && $upcontext['current_debug_item_name'] != '' && $do_current)
		{
			restore_error_handler();
			return false;
		}

		// Clean up by cleaning any step info.
		$step_progress = array();
		$custom_warning = '';
	}

	// Put back the error handler.
	restore_error_handler();

	if ($command_line)
	{
		echo ' Successful.' . "\n";
		flush();
	}

	$_GET['substep'] = 0;
	return true;
}

function upgrade_query($string, $unbuffered = false)
{
	global $db_connection, $db_server, $db_user, $db_passwd, $db_type, $command_line, $upcontext, $upgradeurl, $modSettings;
	global $db_name, $db_unbuffered, $smcFunc;

	// Get the query result - working around some SMF specific security - just this once!
	$modSettings['disableQueryCheck'] = true;
	$db_unbuffered = $unbuffered;
	$result = $smcFunc['db_query']('', $string, array('security_override' => true, 'db_error_skip' => true));
	$db_unbuffered = false;

	// Failure?!
	if ($result !== false)
		return $result;

	$db_error_message = $smcFunc['db_error']($db_connection);
	// If MySQL we do something more clever.
	if ($db_type == 'mysql' || $db_type == 'mysqli')
	{
		$mysql_errno = ($db_type == 'mysqli') ? mysqli_errno($db_connection) : mysql_errno($db_connection);
		$error_query = in_array(substr(trim($string), 0, 11), array('INSERT INTO', 'UPDATE IGNO', 'ALTER TABLE', 'DROP TABLE ', 'ALTER IGNOR'));

		// Error numbers:
		//    1016: Can't open file '....MYI'
		//    1050: Table already exists.
		//    1054: Unknown column name.
		//    1060: Duplicate column name.
		//    1061: Duplicate key name.
		//    1062: Duplicate entry for unique key.
		//    1068: Multiple primary keys.
		//    1072: Key column '%s' doesn't exist in table.
		//    1091: Can't drop key, doesn't exist.
		//    1146: Table doesn't exist.
		//    2013: Lost connection to server during query.

		if ($mysql_errno == 1016)
		{
			if (preg_match('~\'([^\.\']+)~', $db_error_message, $match) != 0 && !empty($match[1]))
			{
				if ($db_type == 'mysql')
				{
					mysql_query('REPAIR TABLE `' . $match[1] . '`');
					$result = mysql_query($string);
				}
				else
				{
					mysqli_query($db_connection, 'REPAIR TABLE `' . $match[1] . '`');
					$result = mysqli_query($db_connection, $string);
				}
				if ($result !== false)
					return $result;
			}
		}
		elseif ($mysql_errno == 2013)
		{
			$db_connection = mysql_connect($db_server, $db_user, $db_passwd);
			if ($db_type == 'mysql')
			{
				mysql_select_db($db_name, $db_connection);
				if ($db_connection)
				{
					$result = mysql_query($string);
					if ($result !== false)
						return $result;
				}
			}
			else
			{
				mysqli_select_db($db_connection, $db_name);
				if ($db_connection)
				{
					$result = mysqli_query($db_connection, $string);
					if ($result !== false)
						return $result;
				}
			}
		}
		// Duplicate column name... should be okay ;).
		elseif (in_array($mysql_errno, array(1060, 1061, 1068, 1091)))

			return false;
		// Duplicate insert... make sure it's the proper type of query ;).
		elseif (in_array($mysql_errno, array(1054, 1062, 1146)) && $error_query)

			return false;
		// Creating an index on a non-existent column.
		elseif ($mysql_errno == 1072)
			return false;
		elseif ($mysql_errno == 1050 && substr(trim($string), 0, 12) == 'RENAME TABLE')
			return false;
	}
	// If a table already exists don't go potty.
	else
	{
		if (in_array(substr(trim($string), 0, 8), array('CREATE T', 'CREATE S', 'DROP TABL', 'ALTER TA', 'CREATE I', 'CREATE U')))
		{
			if (strpos($db_error_message, 'exist') !== false)
				return true;
		}
		elseif (strpos(trim($string), 'INSERT ') !== false)
		{
			if (strpos($db_error_message, 'duplicate') !== false)
				return true;
		}
	}

	// Get the query string so we pass everything.
	$query_string = '';
	foreach ($_GET as $k => $v)
		$query_string .= ';' . $k . '=' . $v;
	if (strlen($query_string) != 0)
		$query_string = '?' . substr($query_string, 1);

	if ($command_line)
	{
		echo 'Unsuccessful!  Database error message:', "\n", $db_error_message, "\n";
		die;
	}

	// Bit of a bodge - do we want the error?
	if (!empty($upcontext['return_error']))
	{
		$upcontext['error_message'] = $db_error_message;
		$upcontext['error_string'] = $string;
		return false;
	}

	// Otherwise we have to display this somewhere appropriate if possible.
	$upcontext['forced_error_message'] = '
			<strong>Unsuccessful!</strong><br>

			<div style="margin: 2ex;">
				This query:
				<blockquote><pre>' . nl2br(htmlspecialchars(trim($string))) . ';</pre></blockquote>

				Caused the error:
				<blockquote>' . nl2br(htmlspecialchars($db_error_message)) . '</blockquote>
			</div>

			<form action="' . $upgradeurl . $query_string . '" method="post">
				<input type="submit" value="Try again" class="button_submit">
			</form>
		</div>';

	upgradeExit();
}

function smf_mysql_fetch_assoc($rs)
{
	global $db_type;
	return ($db_type == 'mysql') ? mysql_fetch_assoc($rs) : mysqli_fetch_assoc($rs);
}

function smf_mysql_fetch_row($rs)
{
	global $db_type;
	return ($db_type == 'mysql') ? mysql_fetch_row($rs) : mysqli_fetch_row($rs);
}

function smf_mysql_free_result($rs)
{
	global $db_type;
	return ($db_type == 'mysql') ? mysql_free_result($rs) : mysqli_free_result($rs);
}

function smf_mysql_insert_id($rs)
{
	global $db_type;
	return ($db_type == 'mysql') ? mysql_insert_id($rs) : mysqli_insert_id($rs);
}

function smf_mysql_num_rows($rs)
{
	global $db_type;
	return ($db_type == 'mysql') ? mysql_num_rows($rs) : mysqli_num_rows($rs);
}

function smf_mysql_real_escape_string($string)
{
	global $db_type, $db_connection;
	return ($db_type == 'mysql') ? mysql_real_escape_string($string, $db_connection) : mysqli_real_escape_string($db_connection, $string);
}

// This performs a table alter, but does it unbuffered so the script can time out professionally.
function protected_alter($change, $substep, $is_test = false)
{
	global $db_prefix, $smcFunc;

	db_extend('packages');

	// Firstly, check whether the current index/column exists.
	$found = false;
	if ($change['type'] === 'column')
	{
		$columns = $smcFunc['db_list_columns']('{db_prefix}' . $change['table'], true);
		foreach ($columns as $column)
		{
			// Found it?
			if ($column['name'] === $change['name'])
			{
				$found |= 1;
				// Do some checks on the data if we have it set.
				if (isset($change['col_type']))
					$found &= $change['col_type'] === $column['type'];
				if (isset($change['null_allowed']))
					$found &= $column['null'] == $change['null_allowed'];
				if (isset($change['default']))
					$found &= $change['default'] === $column['default'];
			}
		}
	}
	elseif ($change['type'] === 'index')
	{
		$request = upgrade_query( '
			SHOW INDEX
			FROM ' . $db_prefix . $change['table']);
		if ($request !== false)
		{
			$cur_index = array();

			while ($row = $smcFunc['db_fetch_assoc']($request))
				if ($row['Key_name'] === $change['name'])
					$cur_index[(int) $row['Seq_in_index']] = $row['Column_name'];

			ksort($cur_index, SORT_NUMERIC);
			$found = array_values($cur_index) === $change['target_columns'];

			$smcFunc['db_free_result']($request);
		}
	}

	// If we're trying to add and it's added, we're done.
	if ($found && in_array($change['method'], array('add', 'change')))
		return true;
	// Otherwise if we're removing and it wasn't found we're also done.
	elseif (!$found && in_array($change['method'], array('remove', 'change_remove')))
		return true;
	// Otherwise is it just a test?
	elseif ($is_test)
		return false;

	// Not found it yet? Bummer! How about we see if we're currently doing it?
	$running = false;
	$found = false;
	while (1 == 1)
	{
		$request = upgrade_query('
			SHOW FULL PROCESSLIST');
		while ($row = $smcFunc['db_fetch_assoc']($request))
		{
			if (strpos($row['Info'], 'ALTER TABLE ' . $db_prefix . $change['table']) !== false && strpos($row['Info'], $change['text']) !== false)
				$found = true;
		}

		// Can't find it? Then we need to run it fools!
		if (!$found && !$running)
		{
			$smcFunc['db_free_result']($request);

			$success = upgrade_query('
				ALTER TABLE ' . $db_prefix . $change['table'] . '
				' . $change['text'], true) !== false;

			if (!$success)
				return false;

			// Return
			$running = true;
		}
		// What if we've not found it, but we'd ran it already? Must of completed.
		elseif (!$found)
		{
			$smcFunc['db_free_result']($request);
			return true;
		}

		// Pause execution for a sec or three.
		sleep(3);

		// Can never be too well protected.
		nextSubstep($substep);
	}

	// Protect it.
	nextSubstep($substep);
}

// Alter a text column definition preserving its character set.
function textfield_alter($change, $substep)
{
	global $db_prefix, $databases, $db_type, $smcFunc;

	// Versions of MySQL < 4.1 wouldn't benefit from character set detection.
	if (empty($databases[$db_type]['utf8_support']) || version_compare($databases[$db_type]['utf8_version'], eval($databases[$db_type]['utf8_version_check']), '>'))
	{
		$column_fix = true;
		$null_fix = !$change['null_allowed'];
	}
	else
	{
		$request = $smcFunc['db_query']('', '
			SHOW FULL COLUMNS
			FROM {db_prefix}' . $change['table'] . '
			LIKE {string:column}',
			array(
				'column' => $change['column'],
				'db_error_skip' => true,
			)
		);
		if ($smcFunc['db_num_rows']($request) === 0)
			die('Unable to find column ' . $change['column'] . ' inside table ' . $db_prefix . $change['table']);
		$table_row = $smcFunc['db_fetch_assoc']($request);
		$smcFunc['db_free_result']($request);

		// If something of the current column definition is different, fix it.
		$column_fix = $table_row['Type'] !== $change['type'] || (strtolower($table_row['Null']) === 'yes') !== $change['null_allowed'] || ($table_row['Default'] === null) !== !isset($change['default']) || (isset($change['default']) && $change['default'] !== $table_row['Default']);

		// Columns that previously allowed null, need to be converted first.
		$null_fix = strtolower($table_row['Null']) === 'yes' && !$change['null_allowed'];

		// Get the character set that goes with the collation of the column.
		if ($column_fix && !empty($table_row['Collation']))

		{
			$request = $smcFunc['db_query']('', '
				SHOW COLLATION
				LIKE {string:collation}',
				array(
					'collation' => $table_row['Collation'],
					'db_error_skip' => true,
				)
			);
			// No results? Just forget it all together.
			if ($smcFunc['db_num_rows']($request) === 0)
				unset($table_row['Collation']);
			else
				$collation_info = $smcFunc['db_fetch_assoc']($request);
			$smcFunc['db_free_result']($request);
		}
	}

	if ($column_fix)
	{
		// Make sure there are no NULL's left.
		if ($null_fix)
			$smcFunc['db_query']('', '
				UPDATE {db_prefix}' . $change['table'] . '
				SET ' . $change['column'] . ' = {string:default}
				WHERE ' . $change['column'] . ' IS NULL',
				array(
					'default' => isset($change['default']) ? $change['default'] : '',
					'db_error_skip' => true,
				)
			);

		// Do the actual alteration.
		$smcFunc['db_query']('', '
			ALTER TABLE {db_prefix}' . $change['table'] . '
			CHANGE COLUMN ' . $change['column'] . ' ' . $change['column'] . ' ' . $change['type'] . (isset($collation_info['Charset']) ? ' CHARACTER SET ' . $collation_info['Charset'] . ' COLLATE ' . $collation_info['Collation'] : '') . ($change['null_allowed'] ? '' : ' NOT NULL') . (isset($change['default']) ? ' default {string:default}' : ''),
			array(
				'default' => isset($change['default']) ? $change['default'] : '',
				'db_error_skip' => true,
			)
		);
	}
	nextSubstep($substep);
}

// Check if we need to alter this query.
function checkChange(&$change)
{
	global $smcFunc, $db_type, $databases;
	static $database_version, $where_field_support;

	// Attempt to find a database_version.
	if (empty($database_version))
	{
		$database_version = $databases[$db_type]['version_check'];
		$where_field_support = ($db_type == 'mysql' || $db_type == 'mysqli') && version_compare('5.0', $database_version, '<=');
	}

	// Not a column we need to check on?
	if (!in_array($change['name'], array('memberGroups', 'passwordSalt')))
		return;

	// Break it up you (six|seven).
	$temp = explode(' ', str_replace('NOT NULL', 'NOT_NULL', $change['text']));

	// Can we support a shortcut method?
	if ($where_field_support)
	{
		// Get the details about this change.
		$request = $smcFunc['db_query']('', '
			SHOW FIELDS
			FROM {db_prefix}{raw:table}
			WHERE Field = {string:old_name} OR Field = {string:new_name}',
			array(
				'table' => $change['table'],
				'old_name' => $temp[1],
				'new_name' => $temp[2],
		));
		// !!! This doesn't technically work because we don't pass request into it, but it hasn't broke anything yet.
		if ($smcFunc['db_num_rows'] != 1)
			return;

		list (, $current_type) = $smcFunc['db_fetch_assoc']($request);
		$smcFunc['db_free_result']($request);
	}
	else
	{
		// Do this the old fashion, sure method way.
		$request = $smcFunc['db_query']('', '
			SHOW FIELDS
			FROM {db_prefix}{raw:table}',
			array(
				'table' => $change['table'],
		));
		// Mayday!
		// !!! This doesn't technically work because we don't pass request into it, but it hasn't broke anything yet.
		if ($smcFunc['db_num_rows'] == 0)
			return;

		// Oh where, oh where has my little field gone. Oh where can it be...
		while ($row = $smcFunc['db_query']($request))
			if ($row['Field'] == $temp[1] || $row['Field'] == $temp[2])
			{
				$current_type = $row['Type'];
				break;
			}
	}

	// If this doesn't match, the column may of been altered for a reason.
	if (trim($current_type) != trim($temp[3]))
		$temp[3] = $current_type;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

	// Piece this back together.
	$change['text'] = str_replace('NOT_NULL', 'NOT NULL', implode(' ', $temp));
}

// The next substep.
function nextSubstep($substep)
{
	global $start_time, $timeLimitThreshold, $command_line, $custom_warning;
	global $step_progress, $is_debug, $upcontext;

	if ($_GET['substep'] < $substep)
		$_GET['substep'] = $substep;

	if ($command_line)
	{
		if (time() - $start_time > 1 && empty($is_debug))
		{
			echo '.';
			$start_time = time();
		}
		return;
	}

	@set_time_limit(300);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
	if (function_exists('apache_reset_timeout'))
		@apache_reset_timeout();
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

	if (time() - $start_time <= $timeLimitThreshold)
		return;

	// Do we have some custom step progress stuff?
	if (!empty($step_progress))
	{
		$upcontext['substep_progress'] = 0;
		$upcontext['substep_progress_name'] = $step_progress['name'];
		if ($step_progress['current'] > $step_progress['total'])
			$upcontext['substep_progress'] = 99.9;
		else
			$upcontext['substep_progress'] = ($step_progress['current'] / $step_progress['total']) * 100;

		// Make it nicely rounded.
		$upcontext['substep_progress'] = round($upcontext['substep_progress'], 1);
	}

	// If this is XML we just exit right away!
	if (isset($_GET['xml']))
		return upgradeExit();

	// We're going to pause after this!
	$upcontext['pause'] = true;

	$upcontext['query_string'] = '';
	foreach ($_GET as $k => $v)
	{
		if ($k != 'data' && $k != 'substep' && $k != 'step')
			$upcontext['query_string'] .= ';' . $k . '=' . $v;
	}

	// Custom warning?
	if (!empty($custom_warning))
		$upcontext['custom_warning'] = $custom_warning;

	upgradeExit();
}

function cmdStep0()
{
	global $boarddir, $sourcedir, $language, $modSettings, $start_time, $cachedir, $databases, $db_type, $smcFunc, $upcontext;
	global $language, $is_debug;
	$start_time = time();

	ob_end_clean();
	ob_implicit_flush(true);
	@set_time_limit(600);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

	if (!isset($_SERVER['argv']))
		$_SERVER['argv'] = array();
	$_GET['maint'] = 1;

	foreach ($_SERVER['argv'] as $i => $arg)
	{
		if (preg_match('~^--language=(.+)$~', $arg, $match) != 0)
			$_GET['lang'] = $match[1];
		elseif (preg_match('~^--path=(.+)$~', $arg) != 0)
			continue;
		elseif ($arg == '--no-maintenance')
			$_GET['maint'] = 0;
		elseif ($arg == '--debug')
			$is_debug = true;
		elseif ($arg == '--backup')
			$_POST['backup'] = 1;
		elseif ($arg == '--template' && (file_exists($boarddir . '/template.php') || file_exists($boarddir . '/template.html') && !file_exists($modSettings['theme_dir'] . '/converted')))
			$_GET['conv'] = 1;
		elseif ($i != 0)
		{
			echo 'SMF Command-line Upgrader
Usage: /path/to/php -f ' . basename(__FILE__) . ' -- [OPTION]...

    --language=LANG         Reset the forum\'s language to LANG.
    --no-maintenance        Don\'t put the forum into maintenance mode.
    --debug                 Output debugging information.
    --backup                Create backups of tables with "backup_" prefix.';
			echo "\n";
			exit;
		}
	}

	if (!php_version_check())
		print_error('Error: PHP ' . PHP_VERSION . ' does not match version requirements.', true);
	if (!db_version_check())
		print_error('Error: ' . $databases[$db_type]['name'] . ' ' . $databases[$db_type]['version'] . ' does not match minimum requirements.', true);

	// Do some checks to make sure they have proper privileges
	db_extend('packages');

	// CREATE
	$create = $smcFunc['db_create_table']('{db_prefix}priv_check', array(array('name' => 'id_test', 'type' => 'int', 'size' => 10, 'unsigned' => true, 'auto' => true)), array(array('columns' => array('id_test'), 'primary' => true)), array(), 'overwrite');

	// ALTER
	$alter = $smcFunc['db_add_column']('{db_prefix}priv_check', array('name' => 'txt', 'type' => 'tinytext', 'null' => false, 'default' => ''));

	// DROP
	$drop = $smcFunc['db_drop_table']('{db_prefix}priv_check');

	// Sorry... we need CREATE, ALTER and DROP
	if (!$create || !$alter || !$drop)

		print_error("The " . $databases[$db_type]['name'] . " user you have set in Settings.php does not have proper privileges.\n\nPlease ask your host to give this user the ALTER, CREATE, and DROP privileges.", true);

	$check = @file_exists($modSettings['theme_dir'] . '/index.template.php')
		&& @file_exists($sourcedir . '/QueryString.php')
		&& @file_exists($sourcedir . '/ManageBoards.php');
	if (!$check && !isset($modSettings['smfVersion']))
		print_error('Error: Some files are missing or out-of-date.', true);

	// Do a quick version spot check.
	$temp = substr(@implode('', @file($boarddir . '/index.php')), 0, 4096);
	preg_match('~\*\s@version\s+(.+)[\s]{2}~i', $temp, $match);
	if (empty($match[1]) || (trim($match[1]) != SMF_VERSION))
		print_error('Error: Some files have not yet been updated properly.');

	// Make sure Settings.php is writable.
		quickFileWritable($boarddir . '/Settings.php');
	if (!is_writable($boarddir . '/Settings.php'))
		print_error('Error: Unable to obtain write access to "Settings.php".', true);

	// Make sure Settings_bak.php is writable.
		quickFileWritable($boarddir . '/Settings_bak.php');
	if (!is_writable($boarddir . '/Settings_bak.php'))
		print_error('Error: Unable to obtain write access to "Settings_bak.php".');

	if (isset($modSettings['agreement']) && (!is_writable($boarddir) || file_exists($boarddir . '/agreement.txt')) && !is_writable($boarddir . '/agreement.txt'))

		print_error('Error: Unable to obtain write access to "agreement.txt".');
	elseif (isset($modSettings['agreement']))
	{
		$fp = fopen($boarddir . '/agreement.txt', 'w');
		fwrite($fp, $modSettings['agreement']);
		fclose($fp);
	}

	// Make sure Themes is writable.
	quickFileWritable($modSettings['theme_dir']);

	if (!is_writable($modSettings['theme_dir']) && !isset($modSettings['smfVersion']))
		print_error('Error: Unable to obtain write access to "Themes".');

	// Make sure cache directory exists and is writable!
	$cachedir_temp = empty($cachedir) ? $boarddir . '/cache' : $cachedir;
	if (!file_exists($cachedir_temp))
		@mkdir($cachedir_temp);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

	// Make sure the cache temp dir is writable.
	quickFileWritable($cachedir_temp);

	if (!is_writable($cachedir_temp))
		print_error('Error: Unable to obtain write access to "cache".', true);

	if (!file_exists($modSettings['theme_dir'] . '/languages/index.' . $upcontext['language'] . '.php') && !isset($modSettings['smfVersion']) && !isset($_GET['lang']))
		print_error('Error: Unable to find language files!', true);
	else
	{
		$temp = substr(@implode('', @file($modSettings['theme_dir'] . '/languages/index.' . $upcontext['language'] . '.php')), 0, 4096);
		preg_match('~(?://|/\*)\s*Version:\s+(.+?);\s*index(?:[\s]{2}|\*/)~i', $temp, $match);

		if (empty($match[1]) || $match[1] != SMF_LANG_VERSION)
			print_error('Error: Language files out of date.', true);
		if (!file_exists($modSettings['theme_dir'] . '/languages/Install.' . $upcontext['language'] . '.php'))
			print_error('Error: Install language is missing for selected language.', true);

		// Otherwise include it!
		require_once($modSettings['theme_dir'] . '/languages/Install.' . $upcontext['language'] . '.php');
	}

	// Make sure we skip the HTML for login.
	$_POST['upcont'] = true;
	$upcontext['current_step'] = 1;
}

function print_error($message, $fatal = false)
{
	static $fp = null;

	if ($fp === null)
		$fp = fopen('php://stderr', 'wb');

	fwrite($fp, $message . "\n");

	if ($fatal)
		exit;
}

function throw_error($message)
{
	global $upcontext;

	$upcontext['error_msg'] = $message;
	$upcontext['sub_template'] = 'error_message';

	return false;
}

// Check files are writable - make them writable if necessary...
function makeFilesWritable(&$files)
{
	global $upcontext, $boarddir;

	if (empty($files))
		return true;

	$failure = false;
	// On linux, it's easy - just use is_writable!
	if (substr(__FILE__, 1, 2) != ':\\')
	{
		$upcontext['systemos'] = 'linux';

		foreach ($files as $k => $file)
		{
			if (!is_writable($file))
			{
				@chmod($file, 0755);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

				// Well, 755 hopefully worked... if not, try 777.
				if (!is_writable($file) && !@chmod($file, 0777))
					$failure = true;
				// Otherwise remove it as it's good!
				else
					unset($files[$k]);
			}
			else
				unset($files[$k]);
		}
	}
	// Windows is trickier.  Let's try opening for r+...
	else
	{
		$upcontext['systemos'] = 'windows';

		foreach ($files as $k => $file)
		{
			// Folders can't be opened for write... but the index.php in them can ;).
			if (is_dir($file))
				$file .= '/index.php';

			// Funny enough, chmod actually does do something on windows - it removes the read only attribute.
			@chmod($file, 0777);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
			$fp = @fopen($file, 'r+');

			// Hmm, okay, try just for write in that case...
			if (!$fp)
				$fp = @fopen($file, 'w');

			if (!$fp)
				$failure = true;
			else
				unset($files[$k]);
			@fclose($fp);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		}
	}

	if (empty($files))
		return true;

	if (!isset($_SERVER))
		return !$failure;

	// What still needs to be done?
	$upcontext['chmod']['files'] = $files;

	// If it's windows it's a mess...
	if ($failure && substr(__FILE__, 1, 2) == ':\\')
	{
		$upcontext['chmod']['ftp_error'] = 'total_mess';

		return false;
	}
	// We're going to have to use... FTP!
	elseif ($failure)
	{
		// Load any session data we might have...
		if (!isset($_POST['ftp_username']) && isset($_SESSION['installer_temp_ftp']))
		{
			$upcontext['chmod']['server'] = $_SESSION['installer_temp_ftp']['server'];
			$upcontext['chmod']['port'] = $_SESSION['installer_temp_ftp']['port'];
			$upcontext['chmod']['username'] = $_SESSION['installer_temp_ftp']['username'];
			$upcontext['chmod']['password'] = $_SESSION['installer_temp_ftp']['password'];
			$upcontext['chmod']['path'] = $_SESSION['installer_temp_ftp']['path'];
		}
		// Or have we submitted?
		elseif (isset($_POST['ftp_username']))

		{
			$upcontext['chmod']['server'] = $_POST['ftp_server'];
			$upcontext['chmod']['port'] = $_POST['ftp_port'];
			$upcontext['chmod']['username'] = $_POST['ftp_username'];
			$upcontext['chmod']['password'] = $_POST['ftp_password'];
			$upcontext['chmod']['path'] = $_POST['ftp_path'];
		}

		if (isset($upcontext['chmod']['username']))
		{
			$ftp = new ftp_connection($upcontext['chmod']['server'], $upcontext['chmod']['port'], $upcontext['chmod']['username'], $upcontext['chmod']['password']);

			if ($ftp->error === false)
			{
				// Try it without /home/abc just in case they messed up.
				if (!$ftp->chdir($upcontext['chmod']['path']))
				{
					$upcontext['chmod']['ftp_error'] = $ftp->last_message;
					$ftp->chdir(preg_replace('~^/home[2]?/[^/]+?~', '', $upcontext['chmod']['path']));
				}
			}
		}

		if (!isset($ftp) || $ftp->error !== false)
		{
			if (!isset($ftp))
				$ftp = new ftp_connection(null);
			// Save the error so we can mess with listing...
			elseif ($ftp->error !== false && !isset($upcontext['chmod']['ftp_error']))
				$upcontext['chmod']['ftp_error'] = $ftp->last_message === null ? '' : $ftp->last_message;

			list ($username, $detect_path, $found_path) = $ftp->detect_path(dirname(__FILE__));

			if ($found_path || !isset($upcontext['chmod']['path']))
				$upcontext['chmod']['path'] = $detect_path;

			if (!isset($upcontext['chmod']['username']))
				$upcontext['chmod']['username'] = $username;

			// Don't forget the login token.
			$upcontext += createToken('login');

			return false;
		}
		else
		{
			// We want to do a relative path for FTP.
			if (!in_array($upcontext['chmod']['path'], array('', '/')))
			{
				$ftp_root = strtr($boarddir, array($upcontext['chmod']['path'] => ''));
				if (substr($ftp_root, -1) == '/' && ($upcontext['chmod']['path'] == '' || $upcontext['chmod']['path'][0] === '/'))
				$ftp_root = substr($ftp_root, 0, -1);
			}
			else
				$ftp_root = $boarddir;

			// Save the info for next time!
			$_SESSION['installer_temp_ftp'] = array(
				'server' => $upcontext['chmod']['server'],
				'port' => $upcontext['chmod']['port'],
				'username' => $upcontext['chmod']['username'],
				'password' => $upcontext['chmod']['password'],
				'path' => $upcontext['chmod']['path'],
				'root' => $ftp_root,
			);

			foreach ($files as $k => $file)
			{
				if (!is_writable($file))
					$ftp->chmod($file, 0755);
				if (!is_writable($file))
					$ftp->chmod($file, 0777);

				// Assuming that didn't work calculate the path without the boarddir.
				if (!is_writable($file))
				{
					if (strpos($file, $boarddir) === 0)
					{
						$ftp_file = strtr($file, array($_SESSION['installer_temp_ftp']['root'] => ''));
						$ftp->chmod($ftp_file, 0755);
						if (!is_writable($file))
							$ftp->chmod($ftp_file, 0777);
						// Sometimes an extra slash can help...
						$ftp_file = '/' . $ftp_file;
						if (!is_writable($file))
							$ftp->chmod($ftp_file, 0755);
						if (!is_writable($file))
							$ftp->chmod($ftp_file, 0777);
					}
				}

				if (is_writable($file))
					unset($files[$k]);
			}

			$ftp->close();
		}
	}

	// What remains?
	$upcontext['chmod']['files'] = $files;

	if (empty($files))
		return true;

	return false;
}

function quickFileWritable($file)
{
	if (is_writable($file))
		return true;

	@chmod($file, 0755);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

	// Try 755 and 775 first since 777 doesn't always work and could be a risk...
	$chmod_values = array(0755, 0775, 0777);

	foreach($chmod_values as $val)
	{
		// If it's writable, break out of the loop
		if (is_writable($file))
			break;
		else
			@chmod($file, $val);
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
	}
}
function smf_strtolower($string)
{
	global $sourcedir;
	if (function_exists('mb_strtolower'))
		return mb_strtolower($string, 'UTF-8');
	require_once($sourcedir . '/Subs-Charset.php');
	return utf8_strtolower($string);
}

/**
 * Handles converting your database to UTF-8
 */
function convertUtf8()
{
	global $upcontext, $db_character_set, $sourcedir, $smcFunc, $modSettings, $language, $db_prefix, $db_type, $command_line, $support_js, $is_debug;

	// First make sure they aren't already on UTF-8 before we go anywhere...
	if ($db_type == 'postgresql' || ($db_character_set === 'utf8' && !empty($modSettings['global_character_set']) && $modSettings['global_character_set'] === 'UTF-8'))
	{
		$smcFunc['db_insert']('replace',
			'{db_prefix}settings',
			array('variable' => 'string', 'value' => 'string'),
			array(array('global_character_set', 'UTF-8')),
			array('variable')
		);
		
		return true;
	}
	else
	{
		$upcontext['page_title'] = 'Converting to UTF8';
		$upcontext['sub_template'] = isset($_GET['xml']) ? 'convert_xml' : 'convert_utf8';

		// The character sets used in SMF's language files with their db equivalent.
		$charsets = array(
			// Armenian
			'armscii8' => 'armscii8',
			// Chinese-traditional.
			'big5' => 'big5',
			// Chinese-simplified.
			'gbk' => 'gbk',
			// West European.
			'ISO-8859-1' => 'latin1',
			// Romanian.
			'ISO-8859-2' => 'latin2',
			// Turkish.
			'ISO-8859-9' => 'latin5',
			// Latvian
			'ISO-8859-13' => 'latin7',
			// West European with Euro sign.
			'ISO-8859-15' => 'latin9',
			// Thai.
			'tis-620' => 'tis620',
			// Persian, Chinese, etc.
			'UTF-8' => 'utf8',
			// Russian.
			'windows-1251' => 'cp1251',
			// Greek.
			'windows-1253' => 'utf8',
			// Hebrew.
			'windows-1255' => 'utf8',
			// Arabic.
			'windows-1256' => 'cp1256',
		);

		// Get a list of character sets supported by your MySQL server.
		$request = $smcFunc['db_query']('', '
			SHOW CHARACTER SET',
			array(
			)
		);
		$db_charsets = array();
		while ($row = $smcFunc['db_fetch_assoc']($request))
			$db_charsets[] = $row['Charset'];

		$smcFunc['db_free_result']($request);

		// Character sets supported by both MySQL and SMF's language files.
		$charsets = array_intersect($charsets, $db_charsets);

		// Use the messages.body column as indicator for the database charset.
		$request = $smcFunc['db_query']('', '
			SHOW FULL COLUMNS
			FROM {db_prefix}messages
			LIKE {string:body_like}',
			array(
				'body_like' => 'body',
			)
		);
		$column_info = $smcFunc['db_fetch_assoc']($request);
		$smcFunc['db_free_result']($request);

		// A collation looks like latin1_swedish. We only need the character set.
		list($upcontext['database_charset']) = explode('_', $column_info['Collation']);
		$upcontext['database_charset'] = in_array($upcontext['database_charset'], $charsets) ? array_search($upcontext['database_charset'], $charsets) : $upcontext['database_charset'];

		// Detect whether a fulltext index is set.
		$request = $smcFunc['db_query']('', '
 			SHOW INDEX
	  	    FROM {db_prefix}messages',
			array(
			)
		);

		$upcontext['dropping_index'] = false;

		// If there's a fulltext index, we need to drop it first...
		if ($request !== false || $smcFunc['db_num_rows']($request) != 0)

		{
			while ($row = $smcFunc['db_fetch_assoc']($request))
				if ($row['Column_name'] == 'body' && (isset($row['Index_type']) && $row['Index_type'] == 'FULLTEXT' || isset($row['Comment']) && $row['Comment'] == 'FULLTEXT'))
					$upcontext['fulltext_index'][] = $row['Key_name'];
			$smcFunc['db_free_result']($request);

			if (isset($upcontext['fulltext_index']))
				$upcontext['fulltext_index'] = array_unique($upcontext['fulltext_index']);
		}

		// Drop it and make a note...
		if (!empty($upcontext['fulltext_index']))
		{
			$upcontext['dropping_index'] = true;

			$smcFunc['db_query']('', '
  			ALTER TABLE {db_prefix}messages
	  		DROP INDEX ' . implode(',
		  	DROP INDEX ', $upcontext['fulltext_index']),
				array(
					'db_error_skip' => true,
				)
			);

			// Update the settings table
			$smcFunc['db_insert']('replace',
				'{db_prefix}settings',
				array('variable' => 'string', 'value' => 'string'),
				array('db_search_index', ''),
				array('variable')
			);
		}

		// Figure out what charset we should be converting from...
		$lang_charsets = array(
			'arabic' => 'windows-1256',
			'armenian_east' => 'armscii-8',
			'armenian_west' => 'armscii-8',
			'azerbaijani_latin' => 'ISO-8859-9',
			'bangla' => 'UTF-8',
			'belarusian' => 'ISO-8859-5',
			'bulgarian' => 'windows-1251',
			'cambodian' => 'UTF-8',
			'chinese_simplified' => 'gbk',
			'chinese_traditional' => 'big5',
			'croation' => 'ISO-8859-2',
			'czech' => 'ISO-8859-2',
			'czech_informal' => 'ISO-8859-2',
			'english_pirate' => 'UTF-8',
			'esperanto' => 'ISO-8859-3',
			'estonian' => 'ISO-8859-15',
			'filipino_tagalog' => 'UTF-8',
			'filipino_vasayan' => 'UTF-8',
			'georgian' => 'UTF-8',
			'greek' => 'ISO-8859-3',
			'hebrew' => 'windows-1255',
			'hungarian' => 'ISO-8859-2',
			'irish' => 'UTF-8',
			'japanese' => 'UTF-8',
			'khmer' => 'UTF-8',
			'korean' => 'UTF-8',
			'kurdish_kurmanji' => 'ISO-8859-9',
			'kurdish_sorani' => 'windows-1256',
			'lao' => 'tis-620',
			'latvian' => 'ISO-8859-13',
			'lithuanian' => 'ISO-8859-4',
			'macedonian' => 'UTF-8',
			'malayalam' => 'UTF-8',
			'mongolian' => 'UTF-8',
			'nepali' => 'UTF-8',
			'persian' => 'UTF-8',
			'polish' => 'ISO-8859-2',
			'romanian' => 'ISO-8859-2',
			'russian' => 'windows-1252',
			'sakha' => 'UTF-8',
			'serbian_cyrillic' => 'ISO-8859-5',
			'serbian_latin' => 'ISO-8859-2',
			'sinhala' => 'UTF-8',
			'slovak' => 'ISO-8859-2',
			'slovenian' => 'ISO-8859-2',
			'telugu' => 'UTF-8',
			'thai' => 'tis-620',
			'turkish' => 'ISO-8859-9',
			'turkmen' => 'ISO-8859-9',
			'ukranian' => 'windows-1251',
			'urdu' => 'UTF-8',
			'uzbek_cyrillic' => 'ISO-8859-5',
			'uzbek_latin' => 'ISO-8859-5',
			'vietnamese' => 'UTF-8',
			'yoruba' => 'UTF-8'
		);

		// Default to ISO-8859-1 unless we detected another supported charset
		$upcontext['charset_detected'] = (isset($lang_charsets[$language]) && isset($charsets[strtr(strtolower($upcontext['charset_detected']), array('utf' => 'UTF', 'iso' => 'ISO'))])) ? $lang_charsets[$language] : 'ISO-8859-1';

		$upcontext['charset_list'] = array_keys($charsets);

		// Translation table for the character sets not native for MySQL.
		$translation_tables = array(
			'windows-1255' => array(
				'0x81' => '\'\'',		'0x8A' => '\'\'',		'0x8C' => '\'\'',
				'0x8D' => '\'\'',		'0x8E' => '\'\'',		'0x8F' => '\'\'',
				'0x90' => '\'\'',		'0x9A' => '\'\'',		'0x9C' => '\'\'',
				'0x9D' => '\'\'',		'0x9E' => '\'\'',		'0x9F' => '\'\'',
				'0xCA' => '\'\'',		'0xD9' => '\'\'',		'0xDA' => '\'\'',
				'0xDB' => '\'\'',		'0xDC' => '\'\'',		'0xDD' => '\'\'',
				'0xDE' => '\'\'',		'0xDF' => '\'\'',		'0xFB' => '\'\'',
				'0xFC' => '\'\'',		'0xFF' => '\'\'',		'0xC2' => '0xFF',
				'0x80' => '0xFC',		'0xE2' => '0xFB',		'0xA0' => '0xC2A0',
				'0xA1' => '0xC2A1',		'0xA2' => '0xC2A2',		'0xA3' => '0xC2A3',
				'0xA5' => '0xC2A5',		'0xA6' => '0xC2A6',		'0xA7' => '0xC2A7',
				'0xA8' => '0xC2A8',		'0xA9' => '0xC2A9',		'0xAB' => '0xC2AB',
				'0xAC' => '0xC2AC',		'0xAD' => '0xC2AD',		'0xAE' => '0xC2AE',
				'0xAF' => '0xC2AF',		'0xB0' => '0xC2B0',		'0xB1' => '0xC2B1',
				'0xB2' => '0xC2B2',		'0xB3' => '0xC2B3',		'0xB4' => '0xC2B4',
				'0xB5' => '0xC2B5',		'0xB6' => '0xC2B6',		'0xB7' => '0xC2B7',
				'0xB8' => '0xC2B8',		'0xB9' => '0xC2B9',		'0xBB' => '0xC2BB',
				'0xBC' => '0xC2BC',		'0xBD' => '0xC2BD',		'0xBE' => '0xC2BE',
				'0xBF' => '0xC2BF',		'0xD7' => '0xD7B3',		'0xD1' => '0xD781',
				'0xD4' => '0xD7B0',		'0xD5' => '0xD7B1',		'0xD6' => '0xD7B2',
				'0xE0' => '0xD790',		'0xEA' => '0xD79A',		'0xEC' => '0xD79C',
				'0xED' => '0xD79D',		'0xEE' => '0xD79E',		'0xEF' => '0xD79F',
				'0xF0' => '0xD7A0',		'0xF1' => '0xD7A1',		'0xF2' => '0xD7A2',
				'0xF3' => '0xD7A3',		'0xF5' => '0xD7A5',		'0xF6' => '0xD7A6',
				'0xF7' => '0xD7A7',		'0xF8' => '0xD7A8',		'0xF9' => '0xD7A9',
				'0x82' => '0xE2809A',	'0x84' => '0xE2809E',	'0x85' => '0xE280A6',
				'0x86' => '0xE280A0',	'0x87' => '0xE280A1',	'0x89' => '0xE280B0',
				'0x8B' => '0xE280B9',	'0x93' => '0xE2809C',	'0x94' => '0xE2809D',
				'0x95' => '0xE280A2',	'0x97' => '0xE28094',	'0x99' => '0xE284A2',
				'0xC0' => '0xD6B0',		'0xC1' => '0xD6B1',		'0xC3' => '0xD6B3',
				'0xC4' => '0xD6B4',		'0xC5' => '0xD6B5',		'0xC6' => '0xD6B6',
				'0xC7' => '0xD6B7',		'0xC8' => '0xD6B8',		'0xC9' => '0xD6B9',
				'0xCB' => '0xD6BB',		'0xCC' => '0xD6BC',		'0xCD' => '0xD6BD',
				'0xCE' => '0xD6BE',		'0xCF' => '0xD6BF',		'0xD0' => '0xD780',
				'0xD2' => '0xD782',		'0xE3' => '0xD793',		'0xE4' => '0xD794',
				'0xE5' => '0xD795',		'0xE7' => '0xD797',		'0xE9' => '0xD799',
				'0xFD' => '0xE2808E',	'0xFE' => '0xE2808F',	'0x92' => '0xE28099',
				'0x83' => '0xC692',		'0xD3' => '0xD783',		'0x88' => '0xCB86',
				'0x98' => '0xCB9C',		'0x91' => '0xE28098',	'0x96' => '0xE28093',
				'0xBA' => '0xC3B7',		'0x9B' => '0xE280BA',	'0xAA' => '0xC397',
				'0xA4' => '0xE282AA',	'0xE1' => '0xD791',		'0xE6' => '0xD796',
				'0xE8' => '0xD798',		'0xEB' => '0xD79B',		'0xF4' => '0xD7A4',
				'0xFA' => '0xD7AA',		'0xFF' => '0xD6B2',		'0xFC' => '0xE282AC',
				'0xFB' => '0xD792',
			),
			'windows-1253' => array(
				'0x81' => '\'\'',			'0x88' => '\'\'',			'0x8A' => '\'\'',
				'0x8C' => '\'\'',			'0x8D' => '\'\'',			'0x8E' => '\'\'',
				'0x8F' => '\'\'',			'0x90' => '\'\'',			'0x98' => '\'\'',
				'0x9A' => '\'\'',			'0x9C' => '\'\'',			'0x9D' => '\'\'',
				'0x9E' => '\'\'',			'0x9F' => '\'\'',			'0xAA' => '\'\'',
				'0xD2' => '\'\'',			'0xFF' => '\'\'',			'0xCE' => '0xCE9E',
				'0xB8' => '0xCE88',		'0xBA' => '0xCE8A',		'0xBC' => '0xCE8C',
				'0xBE' => '0xCE8E',		'0xBF' => '0xCE8F',		'0xC0' => '0xCE90',
				'0xC8' => '0xCE98',		'0xCA' => '0xCE9A',		'0xCC' => '0xCE9C',
				'0xCD' => '0xCE9D',		'0xCF' => '0xCE9F',		'0xDA' => '0xCEAA',
				'0xE8' => '0xCEB8',		'0xEA' => '0xCEBA',		'0xEC' => '0xCEBC',
				'0xEE' => '0xCEBE',		'0xEF' => '0xCEBF',		'0xC2' => '0xFF',
				'0xBD' => '0xC2BD',		'0xED' => '0xCEBD',		'0xB2' => '0xC2B2',
				'0xA0' => '0xC2A0',		'0xA3' => '0xC2A3',		'0xA4' => '0xC2A4',
				'0xA5' => '0xC2A5',		'0xA6' => '0xC2A6',		'0xA7' => '0xC2A7',
				'0xA8' => '0xC2A8',		'0xA9' => '0xC2A9',		'0xAB' => '0xC2AB',
				'0xAC' => '0xC2AC',		'0xAD' => '0xC2AD',		'0xAE' => '0xC2AE',
				'0xB0' => '0xC2B0',		'0xB1' => '0xC2B1',		'0xB3' => '0xC2B3',
				'0xB5' => '0xC2B5',		'0xB6' => '0xC2B6',		'0xB7' => '0xC2B7',
				'0xBB' => '0xC2BB',		'0xE2' => '0xCEB2',		'0x80' => '0xD2',
				'0x82' => '0xE2809A',	'0x84' => '0xE2809E',	'0x85' => '0xE280A6',
				'0x86' => '0xE280A0',	'0xA1' => '0xCE85',		'0xA2' => '0xCE86',
				'0x87' => '0xE280A1',	'0x89' => '0xE280B0',	'0xB9' => '0xCE89',
				'0x8B' => '0xE280B9',	'0x91' => '0xE28098',	'0x99' => '0xE284A2',
				'0x92' => '0xE28099',	'0x93' => '0xE2809C',	'0x94' => '0xE2809D',
				'0x95' => '0xE280A2',	'0x96' => '0xE28093',	'0x97' => '0xE28094',
				'0x9B' => '0xE280BA',	'0xAF' => '0xE28095',	'0xB4' => '0xCE84',
				'0xC1' => '0xCE91',		'0xC3' => '0xCE93',		'0xC4' => '0xCE94',
				'0xC5' => '0xCE95',		'0xC6' => '0xCE96',		'0x83' => '0xC692',
				'0xC7' => '0xCE97',		'0xC9' => '0xCE99',		'0xCB' => '0xCE9B',
				'0xD0' => '0xCEA0',		'0xD1' => '0xCEA1',		'0xD3' => '0xCEA3',
				'0xD4' => '0xCEA4',		'0xD5' => '0xCEA5',		'0xD6' => '0xCEA6',
				'0xD7' => '0xCEA7',		'0xD8' => '0xCEA8',		'0xD9' => '0xCEA9',
				'0xDB' => '0xCEAB',		'0xDC' => '0xCEAC',		'0xDD' => '0xCEAD',
				'0xDE' => '0xCEAE',		'0xDF' => '0xCEAF',		'0xE0' => '0xCEB0',
				'0xE1' => '0xCEB1',		'0xE3' => '0xCEB3',		'0xE4' => '0xCEB4',
				'0xE5' => '0xCEB5',		'0xE6' => '0xCEB6',		'0xE7' => '0xCEB7',
				'0xE9' => '0xCEB9',		'0xEB' => '0xCEBB',		'0xF0' => '0xCF80',
				'0xF1' => '0xCF81',		'0xF2' => '0xCF82',		'0xF3' => '0xCF83',
				'0xF4' => '0xCF84',		'0xF5' => '0xCF85',		'0xF6' => '0xCF86',
				'0xF7' => '0xCF87',		'0xF8' => '0xCF88',		'0xF9' => '0xCF89',
				'0xFA' => '0xCF8A',		'0xFB' => '0xCF8B',		'0xFC' => '0xCF8C',
				'0xFD' => '0xCF8D',		'0xFE' => '0xCF8E',		'0xFF' => '0xCE92',
				'0xD2' => '0xE282AC',
			),
		);

		// Make some preparations.
		if (isset($translation_tables[$upcontext['charset_detected']]))
		{
			$replace = '%field%';

			// Build a huge REPLACE statement...
			foreach ($translation_tables[$upcontext['charset_detected']] as $from => $to)
				$replace = 'REPLACE(' . $replace . ', ' . $from . ', ' . $to . ')';
		}

		// Get a list of table names ahead of time... This makes it easier to set our substep and such
		db_extend();
		$queryTables = $smcFunc['db_list_tables'](false, $db_prefix . '%');

		$upcontext['table_count'] = count($queryTables);
		$file_steps = $upcontext['table_count'];
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

		for($substep = $_GET['substep']; $substep < $upcontext['table_count']; $substep++)
		{
			$table = $queryTables[$_GET['substep']];

			// Do we need to pause?
			nextSubstep($substep);

			$getTableStatus = $smcFunc['db_query']('', '
				SHOW TABLE STATUS
				LIKE {string:table_name}',
				array(
					'table_name' => str_replace('_', '\_', $table)
				)
			);

			// Only one row so we can just fetch_assoc and free the result...
			$table_info = $smcFunc['db_fetch_assoc']($getTableStatus);
			$smcFunc['db_free_result']($getTableStatus);

			$upcontext['cur_table_num'] = $_GET['substep'];
			$upcontext['cur_table_name'] = $table_info['Name'];
			$upcontext['step_progress'] = (int) (($upcontext['cur_table_num'] / $upcontext['table_count']) * 100);

			// Just to make sure it doesn't time out.
			if (function_exists('apache_reset_timeout'))
				@apache_reset_timeout();
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}

			$table_charsets = array();

			// Loop through each column.
			$queryColumns = $smcFunc['db_query']('', '
				SHOW FULL COLUMNS
				FROM ' . $table_info['Name'],
				array(
				)
			);
			while ($column_info = $smcFunc['db_fetch_assoc']($queryColumns))
			{
				// Only text'ish columns have a character set and need converting.
				if (strpos($column_info['Type'], 'text') !== false || strpos($column_info['Type'], 'char') !== false)
				{
					$collation = empty($column_info['Collation']) || $column_info['Collation'] === 'NULL' ? $table_info['Collation'] : $column_info['Collation'];
					if (!empty($collation) && $collation !== 'NULL')
					{
						list($charset) = explode('_', $collation);

						if (!isset($table_charsets[$charset]))
							$table_charsets[$charset] = array();

						$table_charsets[$charset][] = $column_info;
					}
				}
			}
			$smcFunc['db_free_result']($queryColumns);

			// Only change the column if the data doesn't match the current charset.
			if ((count($table_charsets) === 1 && key($table_charsets) !== $charsets[$upcontext['charset_detected']]) || count($table_charsets) > 1)
			{
				$updates_blob = '';
				$updates_text = '';
				foreach ($table_charsets as $charset => $columns)
				{
					if ($charset !== $charsets[$upcontext['charset_detected']])
					{
						foreach ($columns as $column)
						{
							$updates_blob .= '
								CHANGE COLUMN `' . $column['Field'] . '` `' . $column['Field'] . '` ' . strtr($column['Type'], array('text' => 'blob', 'char' => 'binary')) . ($column['Null'] === 'YES' ? ' NULL' : ' NOT NULL') . (strpos($column['Type'], 'char') === false ? '' : ' default \'' . $column['Default'] . '\'') . ',';
							$updates_text .= '
								CHANGE COLUMN `' . $column['Field'] . '` `' . $column['Field'] . '` ' . $column['Type'] . ' CHARACTER SET ' . $charsets[$upcontext['charset_detected']] . ($column['Null'] === 'YES' ? '' : ' NOT NULL') . (strpos($column['Type'], 'char') === false ? '' : ' default \'' . $column['Default'] . '\'') . ',';
						}
					}
				}

				// Change the columns to binary form.
				$smcFunc['db_query']('', '
					ALTER TABLE {raw:table_name}{raw:updates_blob}',
					array(
						'table_name' => $table_info['Name'],
						'updates_blob' => substr($updates_blob, 0, -1),
					)
				);

				// Convert the character set if MySQL has no native support for it.
				if (isset($translation_tables[$upcontext['charset_detected']]))
				{
					$update = '';
					foreach ($table_charsets as $charset => $columns)
						foreach ($columns as $column)
							$update .= '
								' . $column['Field'] . ' = ' . strtr($replace, array('%field%' => $column['Field'])) . ',';
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

					$smcFunc['db_query']('', '
						UPDATE {raw:table_name}
						SET {raw:updates}',
						array(
							'table_name' => $table_info['Name'],
							'updates' => substr($update, 0, -1),
						)
					);
				}

				// Change the columns back, but with the proper character set.
				$smcFunc['db_query']('', '
					ALTER TABLE {raw:table_name}{raw:updates_text}',
					array(
						'table_name' => $table_info['Name'],
						'updates_text' => substr($updates_text, 0, -1),
					)
				);
			}

			// Now do the actual conversion (if still needed).
			if ($charsets[$upcontext['charset_detected']] !== 'utf8')
			{
				if ($command_line)
					echo 'Converting table ' . $table_info['Name'] . ' to UTF-8...';

				$smcFunc['db_query']('', '
					ALTER TABLE {raw:table_name}
					CONVERT TO CHARACTER SET utf8',
						array(
								'table_name' => $table_info['Name'],
						)
				);

				if ($command_line)
					echo " done.\n";
			}
		}

		$prev_charset = empty($translation_tables[$upcontext['charset_detected']]) ? $charsets[$upcontext['charset_detected']] : $translation_tables[$upcontext['charset_detected']];

		$smcFunc['db_insert']('replace',
			'{db_prefix}settings',
			array('variable' => 'string', 'value' => 'string'),
			array(array('global_character_set', 'UTF-8'), array('previousCharacterSet', $prev_charset)),
			array('variable')
		);

		// Store it in Settings.php too because it's needed before db connection.
		// Hopefully this works...
		require_once($sourcedir . '/Subs-Admin.php');
		updateSettingsFile(array('db_character_set' => '\'utf8\''));

		// The conversion might have messed up some serialized strings. Fix them!
		$request = $smcFunc['db_query']('', '
			SELECT id_action, extra
			FROM {db_prefix}log_actions
			WHERE action IN ({string:remove}, {string:delete})',
			array(
				'remove' => 'remove',
				'delete' => 'delete',
			)
		);
		while ($row = $smcFunc['db_fetch_assoc']($request))

		{
			if (@safe_unserialize($row['extra']) === false && preg_match('~^(a:3:{s:5:"topic";i:\d+;s:7:"subject";s:)(\d+):"(.+)"(;s:6:"member";s:5:"\d+";})$~', $row['extra'], $matches) === 1)
				$smcFunc['db_query']('', '
					UPDATE {db_prefix}log_actions
					SET extra = {string:extra}
					WHERE id_action = {int:current_action}',
					array(
						'current_action' => $row['id_action'],
						'extra' => $matches[1] . strlen($matches[3]) . ':"' . $matches[3] . '"' . $matches[4],
					)
				);
		}
		$smcFunc['db_free_result']($request);

		if ($upcontext['dropping_index'] && $command_line)
		{
			echo "\nYour fulltext search index was dropped to facilitate the conversion. You will need to recreate it.";
			flush();
		}
	}

	return true;
}

function serialize_to_json()
{
	global $command_line, $smcFunc, $modSettings, $sourcedir, $upcontext, $support_js, $is_debug;

	$upcontext['sub_template'] = isset($_GET['xml']) ? 'serialize_json_xml' : 'serialize_json';
	// First thing's first - did we already do this?
	if (!empty($modSettings['json_done']))
	{
		if ($command_line)
			return DeleteUpgrade();
		else
			return true;
	}

	// Done it already - js wise?
	if (!empty($_POST['json_done']))
		return true;

	// List of tables affected by this function
	// name => array('key', col1[,col2|true[,col3]])
	// If 3rd item in array is true, it indicates that col1 could be empty...
	$tables = array(
		'background_tasks' => array('id_task', 'task_data'),
		'log_actions' => array('id_action', 'extra'),
		'log_online' => array('session', 'url'),
		'log_packages' => array('id_install', 'db_changes', 'failed_steps', 'credits'),
		'log_spider_hits' => array('id_hit', 'url'),
		'log_subscribed' => array('id_sublog', 'pending_details'),
		'pm_rules' => array('id_rule', 'criteria', 'actions'),
		'qanda' => array('id_question', 'answers'),
		'subscriptions' => array('id_subscribe', 'cost'),
		'user_alerts' => array('id_alert', 'extra', true),
		'user_drafts' => array('id_draft', 'to_list', true),
		// These last two are a bit different - we'll handle those separately
		'settings' => array(),
		'themes' => array()
	);

	// Set up some context stuff...
	// Because we're not using numeric indices, we need this to figure out the current table name...
	$keys = array_keys($tables);

	$upcontext['table_count'] = 13;
	$upcontext['cur_table_num'] = $_GET['substep'];
	$upcontext['cur_table_name'] = isset($keys[$_GET['substep']]) ? $keys[$_GET['substep']] : $keys[0];
	$upcontext['step_progress'] = (int) (($upcontext['cur_table_num'] / $upcontext['table_count']) * 100);
	$file_steps = $upcontext['table_count'];
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

	foreach($keys as $id => $table)

		if ($id < $_GET['substep'])
			$upcontext['previous_tables'][] = $table;

	if ($command_line)
		echo 'Converting data from serialize() to json_encode().';

	if (!$support_js || isset($_GET['xml']))
	{
		// Fix the data in each table
		for ($substep = $_GET['substep']; $substep < $upcontext['table_count']; $substep++)
		{
			$upcontext['cur_table_name'] = isset($keys[$substep + 1]) ? $keys[$substep + 1] : $keys[$substep];
			$upcontext['cur_table_num'] = $substep + 1;

			$upcontext['step_progress'] = (int)(($upcontext['cur_table_num'] / $upcontext['table_count']) * 100);

			// Do we need to pause?
			nextSubstep($substep);

			// Initialize a few things...
			$where = '';
			$vars = array();
			$table = $keys[$substep];
			$info = $tables[$table];

			// Now the fun - build our queries and all that fun stuff
			if ($table == 'settings')
			{
				// Now a few settings...
				$serialized_settings = array(
					'attachment_basedirectories',
					'attachmentUploadDir',
					'cal_today_birthday',
					'cal_today_event',
					'cal_today_holiday',
					'displayFields',
					'last_attachments_directory',
					'memberlist_cache',
					'search_index_custom_config',
					'spider_name_cache'
				);

				// Loop through and fix these...
				$new_settings = array();
				if ($command_line)
					echo "\n" . 'Fixing some settings...';

				foreach ($serialized_settings as $var)
				{
					if (isset($modSettings[$var]))
					{
						// Attempt to unserialize the setting
						$temp = @safe_unserialize($modSettings[$var]);
						if (!$temp && $command_line)
							echo "\n - Failed to unserialize the '" . $var . "' setting. Skipping.";
						elseif ($temp !== false)
							$new_settings[$var] = json_encode($temp);
					}
				}

				// Update everything at once
				if (!function_exists('cache_put_data'))
					require_once($sourcedir . '/Load.php');
				updateSettings($new_settings, true);

				if ($command_line)
					echo ' done.';
			}
			elseif ($table == 'themes')
			{
				// Finally, fix the admin prefs. Unfortunately this is stored per theme, but hopefully they only have one theme installed at this point...
				$query = $smcFunc['db_query']('', '
					SELECT id_member, id_theme, value FROM {db_prefix}themes
					WHERE variable = {string:admin_prefs}',
						array(
							'admin_prefs' => 'admin_preferences'
						)
				);

				if ($smcFunc['db_num_rows']($query) != 0)
				{
					while ($row = $smcFunc['db_fetch_assoc']($query))
					{
						$temp = @safe_unserialize($row['value']);

						if ($command_line)
						{
							if ($temp === false)
								echo "\n" . 'Unserialize of admin_preferences for user ' . $row['id_member'] . ' failed. Skipping.';
							else
								echo "\n" . 'Fixing admin preferences...';
						}

						if ($temp !== false)
						{
							$row['value'] = json_encode($temp);

							// Even though we have all values from the table, UPDATE is still faster than REPLACE
							$smcFunc['db_query']('', '
								UPDATE {db_prefix}themes
								SET value = {string:prefs}
								WHERE id_theme = {int:theme}
									AND id_member = {int:member}',
								array(
									'prefs' => $row['value'],
									'theme' => $row['id_theme'],
									'member' => $row['id_member']
								)
							);

							if ($command_line)
								echo ' done.';
						}
					}

					$smcFunc['db_free_result']($query);
				}
			}
			else
			{
				// First item is always the key...
				$key = $info[0];
				unset($info[0]);

				// Now we know what columns we have and such...
				if (count($info) == 2 && $info[2] === true)
				{
					$col_select = $info[1];
					$where = ' WHERE ' . $info[1] . ' != {empty}';
				}
				else
				{
					$col_select = implode(', ', $info);
				}

				$query = $smcFunc['db_query']('', '
					SELECT ' . $key . ', ' . $col_select . '
					FROM {db_prefix}' . $table . $where,
					array()
				);

				if ($smcFunc['db_num_rows']($query) != 0)
				{
					if ($command_line)
					{
						echo "\n" . ' +++ Fixing the "' . $table . '" table...';
						flush();
					}

					while ($row = $smcFunc['db_fetch_assoc']($query))
					{
						$update = '';

						// We already know what our key is...
						foreach ($info as $col)
						{
							if ($col !== true && $row[$col] != '')
							{
								$temp = @safe_unserialize($row[$col]);

								if ($temp === false && $command_line)
								{
									echo "\nFailed to unserialize " . $row[$col] . "... Skipping\n";
								}
								else
								{
									$row[$col] = json_encode($temp);

									// Build our SET string and variables array
									$update .= (empty($update) ? '' : ', ') . $col . ' = {string:' . $col . '}';
									$vars[$col] = $row[$col];
								}
							}
						}

						$vars[$key] = $row[$key];

						// In a few cases, we might have empty data, so don't try to update in those situations...
						if (!empty($update))
						{
							$smcFunc['db_query']('', '
								UPDATE {db_prefix}' . $table . '
								SET ' . $update . '
								WHERE ' . $key . ' = {' . ($key == 'session' ? 'string' : 'int') . ':' . $key . '}',
								$vars
							);
						}
					}

					if ($command_line)
						echo ' done.';

					// Free up some memory...
					$smcFunc['db_free_result']($query);
				}
			}
			// If this is XML to keep it nice for the user do one table at a time anyway!
			if (isset($_GET['xml']))
				return upgradeExit();
		}

		if ($command_line)
		{
			echo "\n" . 'Successful.' . "\n";
			flush();
		}
		$upcontext['step_progress'] = 100;

		// Last but not least, insert a dummy setting so we don't have to do this again in the future...
		updateSettings(array('json_done' => true));

		$_GET['substep'] = 0;
		// Make sure we move on!
		if ($command_line)
			return DeleteUpgrade();

		return true;
	}

	// If this fails we just move on to deleting the upgrade anyway...
	$_GET['substep'] = 0;
	return false;
}

/******************************************************************************
******************* Templates are below this point ****************************
******************************************************************************/

// This is what is displayed if there's any chmod to be done. If not it returns nothing...
function template_chmod()
{
	global $upcontext, $txt, $settings;

	// Don't call me twice!
	if (!empty($upcontext['chmod_called']))
		return;

	$upcontext['chmod_called'] = true;

	// Nothing?
	if (empty($upcontext['chmod']['files']) && empty($upcontext['chmod']['ftp_error']))
		return;

	// Was it a problem with Windows?
	if (!empty($upcontext['chmod']['ftp_error']) && $upcontext['chmod']['ftp_error'] == 'total_mess')
	{
		echo '
			<div class="error_message red">
				The following files need to be writable to continue the upgrade. Please ensure the Windows permissions are correctly set to allow this:<br>
				<ul style="margin: 2.5ex; font-family: monospace;">
					<li>' . implode('</li>
					<li>', $upcontext['chmod']['files']). '</li>
				</ul>
			</div>';

		return false;
	}

	echo '
		<div class="panel">
			<h2>Your FTP connection information</h2>
			<h3>The upgrader can fix any issues with file permissions to make upgrading as simple as possible. Simply enter your connection information below or alternatively click <a href="#" onclick="warning_popup();">here</a> for a list of files which need to be changed.</h3>
			<script>
				function warning_popup()
				{
					popup = window.open(\'\',\'popup\',\'height=150,width=400,scrollbars=yes\');
					var content = popup.document;
					content.write(\'<!DOCTYPE html>\n\');
					content.write(\'<html', $txt['lang_rtl'] == true ? ' dir="rtl"' : '', '>\n\t<head>\n\t\t<meta name="robots" content="noindex">\n\t\t\');
					content.write(\'<title>Warning</title>\n\t\t<link rel="stylesheet" href="', $settings['default_theme_url'], '/css/index.css">\n\t</head>\n\t<body id="popup">\n\t\t\');
					content.write(\'<div class="windowbg description">\n\t\t\t<h4>The following files needs to be made writable to continue:</h4>\n\t\t\t\');
					content.write(\'<p>', implode('<br>\n\t\t\t', $upcontext['chmod']['files']), '</p>\n\t\t\t\');';

	if (isset($upcontext['systemos']) && $upcontext['systemos'] == 'linux')
		echo '
					content.write(\'<hr>\n\t\t\t\');
					content.write(\'<p>If you have a shell account, the convenient below command can automatically correct permissions on these files</p>\n\t\t\t\');
					content.write(\'<tt># chmod a+w ', implode(' ', $upcontext['chmod']['files']), '</tt>\n\t\t\t\');';

	echo '
					content.write(\'<a href="javascript:self.close();">close</a>\n\t\t</div>\n\t</body>\n</html>\');
					content.close();
				}
		</script>';

	if (!empty($upcontext['chmod']['ftp_error']))
		echo '
			<div class="error_message red">
				The following error was encountered when trying to connect:<br><br>
				<code>', $upcontext['chmod']['ftp_error'], '</code>
			</div>
			<br>';

	if (empty($upcontext['chmod_in_form']))
		echo '
	<form action="', $upcontext['form_url'], '" method="post">';

	echo '
		<table width="520" border="0" align="center" style="margin-bottom: 1ex;">
			<tr>
				<td width="26%" valign="top" class="textbox"><label for="ftp_server">', $txt['ftp_server'], ':</label></td>
				<td>
					<div style="float: right; margin-right: 1px;"><label for="ftp_port" class="textbox"><strong>', $txt['ftp_port'], ':&nbsp;</strong></label> <input type="text" size="3" name="ftp_port" id="ftp_port" value="', isset($upcontext['chmod']['port']) ? $upcontext['chmod']['port'] : '21', '" class="input_text"></div>
					<input type="text" size="30" name="ftp_server" id="ftp_server" value="', isset($upcontext['chmod']['server']) ? $upcontext['chmod']['server'] : 'localhost', '" style="width: 70%;" class="input_text">
					<div class="smalltext block">', $txt['ftp_server_info'], '</div>
				</td>
			</tr><tr>
				<td width="26%" valign="top" class="textbox"><label for="ftp_username">', $txt['ftp_username'], ':</label></td>
				<td>
					<input type="text" size="50" name="ftp_username" id="ftp_username" value="', isset($upcontext['chmod']['username']) ? $upcontext['chmod']['username'] : '', '" style="width: 99%;" class="input_text">
					<div class="smalltext block">', $txt['ftp_username_info'], '</div>
				</td>
			</tr><tr>
				<td width="26%" valign="top" class="textbox"><label for="ftp_password">', $txt['ftp_password'], ':</label></td>
				<td>
					<input type="password" size="50" name="ftp_password" id="ftp_password" style="width: 99%;" class="input_password">
					<div class="smalltext block">', $txt['ftp_password_info'], '</div>
				</td>
			</tr><tr>
				<td width="26%" valign="top" class="textbox"><label for="ftp_path">', $txt['ftp_path'], ':</label></td>
				<td style="padding-bottom: 1ex;">
					<input type="text" size="50" name="ftp_path" id="ftp_path" value="', isset($upcontext['chmod']['path']) ? $upcontext['chmod']['path'] : '', '" style="width: 99%;" class="input_text">
					<div class="smalltext block">', !empty($upcontext['chmod']['path']) ? $txt['ftp_path_found_info'] : $txt['ftp_path_info'], '</div>
				</td>
			</tr>
		</table>

		<div class="righttext" style="margin: 1ex;"><input type="submit" value="', $txt['ftp_connect'], '" class="button_submit"></div>
	</div>';

	if (empty($upcontext['chmod_in_form']))
		echo '
	</form>';
}

function template_upgrade_above()
{
	global $modSettings, $txt, $settings, $upcontext, $upgradeurl;

	echo '<!DOCTYPE html>
<html', $txt['lang_rtl'] == true ? ' dir="rtl"' : '', '>
	<head>
		<meta charset="', isset($txt['lang_character_set']) ? $txt['lang_character_set'] : 'UTF-8', '">
		<meta name="robots" content="noindex">
		<title>', $txt['upgrade_upgrade_utility'], '</title>
		<link rel="stylesheet" href="', $settings['default_theme_url'], '/css/index.css?alp21">
		<link rel="stylesheet" href="', $settings['default_theme_url'], '/css/install.css?alp21">
		', $txt['lang_rtl'] == true ? '<link rel="stylesheet" href="' . $settings['default_theme_url'] . '/css/rtl.css?alp21">' : '' , '
		<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
		<script src="', $settings['default_theme_url'], '/scripts/script.js"></script>
		<script>
			var smf_scripturl = \'', $upgradeurl, '\';
			var smf_charset = \'', (empty($modSettings['global_character_set']) ? (empty($txt['lang_character_set']) ? 'UTF-8' : $txt['lang_character_set']) : $modSettings['global_character_set']), '\';
			var startPercent = ', $upcontext['overall_percent'], ';

			// This function dynamically updates the step progress bar - and overall one as required.
			function updateStepProgress(current, max, overall_weight)
			{
				// What out the actual percent.
				var width = parseInt((current / max) * 100);
				if (document.getElementById(\'step_progress\'))
				{
					document.getElementById(\'step_progress\').style.width = width + "%";
					setInnerHTML(document.getElementById(\'step_text\'), width + "%");
				}
				if (overall_weight && document.getElementById(\'overall_progress\'))
				{
					overall_width = parseInt(startPercent + width * (overall_weight / 100));
					document.getElementById(\'overall_progress\').style.width = overall_width + "%";
					setInnerHTML(document.getElementById(\'overall_text\'), overall_width + "%");
				}
			}
		</script>
	</head>
	<body>
	<div id="footerfix">
		<div id="header">
			<h1 class="forumtitle">', $txt['upgrade_upgrade_utility'], '</h1>
			<img id="smflogo" src="', $settings['default_theme_url'], '/images/smflogo.png" alt="Simple Machines Forum" title="Simple Machines Forum">
		</div>
	<div id="wrapper">
		<div id="upper_section">
			<div id="inner_section">
				<div id="inner_wrap">
				</div>
			</div>
		</div>
		<div id="content_section">
		<div id="main_content_section">
			<div id="main_steps">
				<h2>', $txt['upgrade_progress'], '</h2>
				<ul>';

	foreach ($upcontext['steps'] as $num => $step)

		echo '
						<li class="', $num < $upcontext['current_step'] ? 'stepdone' : ($num == $upcontext['current_step'] ? 'stepcurrent' : 'stepwaiting'), '">', $txt['upgrade_step'], ' ', $step[0], ': ', $step[1], '</li>';

	echo '
					</ul>
			</div>

			<div id="progress_bar">
				<div id="overall_text">', $upcontext['overall_percent'], '%</div>
				<div id="overall_progress" style="width: ', $upcontext['overall_percent'], '%;">
					<span>', $txt['upgrade_overall_progress'], '</span>
				</div>
			</div>';

	if (isset($upcontext['step_progress']))
		echo '
				<br>
				<br>
				<div id="progress_bar_step">
					<div id="step_text">', $upcontext['step_progress'], '%</div>
					<div id="step_progress" style="width: ', $upcontext['step_progress'], '%;background-color: #ffd000;">
						<span>', $txt['upgrade_step_progress'], '</span>
					</div>
				</div>';

	echo '
				<div id="substep_bar_div" class="smalltext" style="float: left;width: 50%;margin-top: 0.6em;display: ', isset($upcontext['substep_progress']) ? '' : 'none', ';">', isset($upcontext['substep_progress_name']) ? trim(strtr($upcontext['substep_progress_name'], array('.' => ''))) : '', ':</div>
				<div id="substep_bar_div2" style="float: left;font-size: 8pt; height: 12pt; border: 1px solid black; background-color: white; width: 33%; margin: 0.6em auto 0 6em; display: ', isset($upcontext['substep_progress']) ? '' : 'none', ';">
					<div id="substep_text" style="color: #000; position: absolute; margin-left: -5em;">', isset($upcontext['substep_progress']) ? $upcontext['substep_progress'] : '', '%</div>
					<div id="substep_progress" style="width: ', isset($upcontext['substep_progress']) ? $upcontext['substep_progress'] : 0, '%; height: 12pt; z-index: 1; background-color: #eebaf4;">&nbsp;</div>
				</div>';

	// How long have we been running this?
	$elapsed = time() - $upcontext['started'];
	$mins = (int) ($elapsed / 60);
	$seconds = $elapsed - $mins * 60;
	echo '
								<br> <br> <br> <br> <br>
								<div class="smalltext" style="padding: 5px; text-align: center;"><br>', $txt['upgrade_time_elapsed'], ':
									<span id="mins_elapsed">', $mins, '</span> ', $txt['upgrade_time_mins'], ', <span id="secs_elapsed">', $seconds, '</span> ', $txt['upgrade_time_secs'], '.
								</div>';
	echo '
			</div>
			</div>
			<div id="main_screen" class="clear">
				<h2>', $upcontext['page_title'], '</h2>
				<div class="panel">
					<div style="max-height: 360px; overflow: auto;">';
}

function template_upgrade_below()
{
	global $upcontext, $txt;

	if (!empty($upcontext['pause']))
		echo '
								<em>', $txt['upgrade_incomplete'], '.</em><br>

								<h2 style="margin-top: 2ex;">', $txt['upgrade_not_quite_done'], '</h2>
								<h3>
									', $txt['upgrade_paused_overload'], '
								</h3>';

	if (!empty($upcontext['custom_warning']))
		echo '
								<div style="margin: 2ex; padding: 2ex; border: 2px dashed #cc3344; color: black; background-color: #ffe4e9;">
									<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
									<strong style="text-decoration: underline;">', $txt['upgrade_note'], '</strong><br>
									<div style="padding-left: 6ex;">', $upcontext['custom_warning'], '</div>
								</div>';

	echo '
								<div class="righttext" style="margin: 1ex;">';

	if (!empty($upcontext['continue']))
		echo '
									<input type="submit" id="contbutt" name="contbutt" value="', $txt['upgrade_continue'], '"', $upcontext['continue'] == 2 ? ' disabled' : '', ' class="button_submit">';
	if (!empty($upcontext['skip']))
		echo '
									<input type="submit" id="skip" name="skip" value="', $txt['upgrade_skip'], '" onclick="dontSubmit = true; document.getElementById(\'contbutt\').disabled = \'disabled\'; return true;" class="button_submit">';

	echo '
								</div>
							</form>
						</div>
				</div>
			</div>
			</div>
		</div>
		<div id="footer">
			<ul>
				<li class="copyright"><a href="http://www.simplemachines.org/" title="Simple Machines Forum" target="_blank" class="new_win">SMF &copy; 2016, Simple Machines</a></li>
			</ul>
		</div>
	</body>
</html>';

	// Are we on a pause?
	if (!empty($upcontext['pause']))
	{
		echo '
		<script>
			window.onload = doAutoSubmit;
			var countdown = 3;
			var dontSubmit = false;

			function doAutoSubmit()
			{
				if (countdown == 0 && !dontSubmit)
					document.upform.submit();
				else if (countdown == -1)
					return;

				document.getElementById(\'contbutt\').value = "', $txt['upgrade_continue'], ' (" + countdown + ")";
				countdown--;

				setTimeout("doAutoSubmit();", 1000);
			}
		</script>';
	}
}

function template_xml_above()
{
	global $upcontext;

	echo '<', '?xml version="1.0" encoding="UTF-8"?', '>
	<smf>';

	if (!empty($upcontext['get_data']))
		foreach ($upcontext['get_data'] as $k => $v)
			echo '
		<get key="', $k, '">', $v, '</get>';
}

function template_xml_below()
{
	echo '
		</smf>';
}

function template_error_message()
{
	global $upcontext;

	echo '
	<div class="error_message red">
		', $upcontext['error_msg'], '
		<br>
		<a href="', $_SERVER['PHP_SELF'], '">Click here to try again.</a>
	</div>';
}

function template_welcome_message()
/**
 * @ignore
 */
function getUser() {

}

function getUser($id, $realm) {

}
{
	global $upcontext, $disable_security, $settings, $txt;

	echo '
		<script src="http://www.simplemachines.org/smf/current-version.js?version=' . SMF_VERSION . '"></script>
			<h3>', sprintf($txt['upgrade_ready_proceed'], SMF_VERSION), '</h3>
	<form action="', $upcontext['form_url'], '" method="post" name="upform" id="upform">
		<input type="hidden" name="', $upcontext['login_token_var'], '" value="', $upcontext['login_token'], '">
		<div id="version_warning" style="margin: 2ex; padding: 2ex; border: 2px dashed #a92174; color: black; background-color: #fbbbe2; display: none;">
			<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
			<strong style="text-decoration: underline;">', $txt['upgrade_warning'], '</strong><br>
			<div style="padding-left: 6ex;">
				', sprintf($txt['upgrade_warning_out_of_date'], SMF_VERSION), '
			</div>
		</div>';

	$upcontext['chmod_in_form'] = true;
	template_chmod();

	// For large, pre 1.1 RC2 forums give them a warning about the possible impact of this upgrade!
	if ($upcontext['is_large_forum'])
		echo '
		<div style="margin: 2ex; padding: 2ex; border: 2px dashed #cc3344; color: black; background-color: #ffe4e9;">
			<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
			<strong style="text-decoration: underline;">', $txt['upgrade_warning'], '</strong><br>
			<div style="padding-left: 6ex;">
				', $txt['upgrade_warning_lots_data'], '
			</div>
		</div>';

	// A warning message?
	if (!empty($upcontext['warning']))
		echo '
		<div style="margin: 2ex; padding: 2ex; border: 2px dashed #cc3344; color: black; background-color: #ffe4e9;">
			<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
			<strong style="text-decoration: underline;">', $txt['upgrade_warning'], '</strong><br>
			<div style="padding-left: 6ex;">
				', $upcontext['warning'], '
			</div>
		</div>';

	// Paths are incorrect?
	echo '
		<div style="margin: 2ex; padding: 2ex; border: 2px dashed #804840; color: black; background-color: #fe5a44; ', (file_exists($settings['default_theme_dir'] . '/scripts/script.js') ? 'display: none;' : ''), '" id="js_script_missing_error">
			<div style="float: left; width: 2ex; font-size: 2em; color: black;">!!</div>
			<strong style="text-decoration: underline;">', $txt['upgrade_critical_error'], '</strong><br>
			<div style="padding-left: 6ex;">
				', $txt['upgrade_error_script_js'], '
			</div>
		</div>';

	// Is there someone already doing this?
	if (!empty($upcontext['user']['id']) && (time() - $upcontext['started'] < 72600 || time() - $upcontext['updated'] < 3600))
	{
		$ago = time() - $upcontext['started'];
		if ($ago < 60)
			$ago = $ago . ' seconds';
		elseif ($ago < 3600)
			$ago = (int) ($ago / 60) . ' minutes';
		else
			$ago = (int) ($ago / 3600) . ' hours';

		$active = time() - $upcontext['updated'];
		if ($active < 60)
			$updated = $active . ' seconds';
		elseif ($active < 3600)
			$updated = (int) ($active / 60) . ' minutes';
		else
			$updated = (int) ($active / 3600) . ' hours';

		echo '
		<div style="margin: 2ex; padding: 2ex; border: 2px dashed #cc3344; color: black; background-color: #ffe4e9;">
			<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
			<strong style="text-decoration: underline;">', $txt['upgrade_warning'], '</strong><br>
			<div style="padding-left: 6ex;">
				&quot;', $upcontext['user']['name'], '&quot; has been running the upgrade script for the last ', $ago, ' - and was last active ', $updated, ' ago.';

		if ($active < 600)
			echo '
				We recommend that you do not run this script unless you are sure that ', $upcontext['user']['name'], ' has completed their upgrade.';

		if ($active > $upcontext['inactive_timeout'])
			echo '
				<br><br>You can choose to either run the upgrade again from the beginning - or alternatively continue from the last step reached during the last upgrade.';
		else
			echo '
				<br><br>This upgrade script cannot be run until ', $upcontext['user']['name'], ' has been inactive for at least ', ($upcontext['inactive_timeout'] > 120 ? round($upcontext['inactive_timeout'] / 60, 1) . ' minutes!' : $upcontext['inactive_timeout'] . ' seconds!');

		echo '
			</div>
		</div>';
	}

	echo '
			<strong>Admin Login: ', $disable_security ? '(DISABLED)' : '', '</strong>
			<h3>For security purposes please login with your admin account to proceed with the upgrade.</h3>
			<table>
				<tr valign="top">
					<td><strong ', $disable_security ? 'style="color: gray;"' : '', '>Username:</strong></td>
					<td>
						<input type="text" name="user" value="', !empty($upcontext['username']) ? $upcontext['username'] : '', '"', $disable_security ? ' disabled' : '', ' class="input_text">';

	if (!empty($upcontext['username_incorrect']))
		echo '
						<div class="smalltext" style="color: red;">Username Incorrect</div>';

	echo '
					</td>
				</tr>
				<tr valign="top">
					<td><strong ', $disable_security ? 'style="color: gray;"' : '', '>Password:</strong></td>
					<td>
						<input type="password" name="passwrd" value=""', $disable_security ? ' disabled' : '', ' class="input_password">
						<input type="hidden" name="hash_passwrd" value="">';

	if (!empty($upcontext['password_failed']))
		echo '
						<div class="smalltext" style="color: red;">Password Incorrect</div>';

	echo '
					</td>
				</tr>';

	// Can they continue?
	if (!empty($upcontext['user']['id']) && time() - $upcontext['user']['updated'] >= $upcontext['inactive_timeout'] && $upcontext['user']['step'] > 1)
	{
		echo '
				<tr>
					<td colspan="2">
						<label for="cont"><input type="checkbox" id="cont" name="cont" checked class="input_check">Continue from step reached during last execution of upgrade script.</label>
					</td>
				</tr>';
	}

	echo '
			</table><br>
			<span class="smalltext">
				<strong>Note:</strong> If necessary the above security check can be bypassed for users who may administrate a server but not have admin rights on the forum. In order to bypass the above check simply open &quot;upgrade.php&quot; in a text editor and replace &quot;$disable_security = false;&quot; with &quot;$disable_security = true;&quot; and refresh this page.
			</span>
			<input type="hidden" name="login_attempt" id="login_attempt" value="1">
			<input type="hidden" name="js_works" id="js_works" value="0">';

	// Say we want the continue button!
	$upcontext['continue'] = !empty($upcontext['user']['id']) && time() - $upcontext['user']['updated'] < $upcontext['inactive_timeout'] ? 2 : 1;

	// This defines whether javascript is going to work elsewhere :D
	echo '
		<script>
			if (\'XMLHttpRequest\' in window && document.getElementById(\'js_works\'))
				document.getElementById(\'js_works\').value = 1;

			// Latest version?
			function smfCurrentVersion()
			{
				var smfVer, yourVer;

				if (!(\'smfVersion\' in window))
					return;

				window.smfVersion = window.smfVersion.replace(/SMF\s?/g, \'\');

				smfVer = document.getElementById(\'smfVersion\');
				yourVer = document.getElementById(\'yourVersion\');

				setInnerHTML(smfVer, window.smfVersion);

				var currentVersion = getInnerHTML(yourVer);
				if (currentVersion < window.smfVersion)
					document.getElementById(\'version_warning\').style.display = \'\';
			}
			addLoadEvent(smfCurrentVersion);

			// This checks that the script file even exists!
			if (typeof(smfSelectText) == \'undefined\')
				document.getElementById(\'js_script_missing_error\').style.display = \'\';

		</script>';
}

function template_upgrade_options()
{
	global $upcontext, $modSettings, $db_prefix, $mmessage, $mtitle, $db_type;

	echo '
			<h3>Before the upgrade gets underway please review the options below - and hit continue when you\'re ready to begin.</h3>
			<form action="', $upcontext['form_url'], '" method="post" name="upform" id="upform">';

	// Warning message?
	if (!empty($upcontext['upgrade_options_warning']))
		echo '
		<div style="margin: 1ex; padding: 1ex; border: 1px dashed #cc3344; color: black; background-color: #ffe4e9;">
			<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
			<strong style="text-decoration: underline;">Warning!</strong><br>
			<div style="padding-left: 4ex;">
				', $upcontext['upgrade_options_warning'], '
			</div>
		</div>';

	echo '
				<table>
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="backup" id="backup" value="1"', $db_type != 'mysql' && $db_type != 'mysqli' && $db_type != 'postgresql' ? ' disabled' : '', ' class="input_check">
						</td>
						<td width="100%">
							<label for="backup">Backup tables in your database with the prefix &quot;backup_' . $db_prefix . '&quot;.</label>', isset($modSettings['smfVersion']) ? '' : ' (recommended!)', '
						</td>
					</tr>
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="maint" id="maint" value="1" checked class="input_check">
						</td>
						<td width="100%">
							<label for="maint">Put the forum into maintenance mode during upgrade.</label> <span class="smalltext">(<a href="#" onclick="document.getElementById(\'mainmess\').style.display = document.getElementById(\'mainmess\').style.display == \'\' ? \'none\' : \'\'">Customize</a>)</span>
							<div id="mainmess" style="display: none;">
								<strong class="smalltext">Maintenance Title: </strong><br>
								<input type="text" name="maintitle" size="30" value="', htmlspecialchars($mtitle), '" class="input_text"><br>
								<strong class="smalltext">Maintenance Message: </strong><br>
								<textarea name="mainmessage" rows="3" cols="50">', htmlspecialchars($mmessage), '</textarea>
							</div>
						</td>
					</tr>';

	// Offer mysql users to switch to mysqli
	if ($db_type == 'mysql' && function_exists('mysqli_query'))
		echo '
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="convertMysql" id="convertMysql" value="1" checked class="input_check">
						</td>
						<td width="100%">
							<label for="convertMysql">Use MySQLi functionality (MySQL compatible).</span>
							<strong class="smalltext"><a href="http://wiki.simplemachines.org/smf/Upgrading-MySQLi-Functionality" target="_blank">More information about MySQLi</a></strong><br>
						</td>
					</tr>';

	echo '
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="debug" id="debug" value="1" class="input_check">
						</td>
						<td width="100%">
							<label for="debug">Output extra debugging information</label>
						</td>
					</tr>
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="empty_error" id="empty_error" value="1" class="input_check">
						</td>
						<td width="100%">
							<label for="empty_error">Empty error log before upgrading</label>
						</td>
					</tr>';

	if (!empty($upcontext['karma_installed']['good']) || !empty($upcontext['karma_installed']['bad']))
		echo '
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="delete_karma" id="delete_karma" value="1" class="input_check">
						</td>
						<td width="100%">
							<label for="delete_karma">Delete all karma settings and info from the DB</label>
						</td>
					</tr>';

	echo '
					<tr valign="top">
						<td width="2%">
							<input type="checkbox" name="stat" id="stat" value="1"', empty($modSettings['allow_sm_stats']) ? '' : ' checked', ' class="input_check">
						</td>
						<td width="100%">
							<label for="stat">
								Allow Simple Machines to Collect Basic Stats Monthly.<br>
								<span class="smalltext">If enabled, this will allow Simple Machines to visit your site once a month to collect basic statistics. This will help us make decisions as to which configurations to optimise the software for. For more information please visit our <a href="http://www.simplemachines.org/about/stats.php" target="_blank">info page</a>.</span>
							</label>
						</td>
					</tr>
				</table>
				<input type="hidden" name="upcont" value="1">';

	// We need a normal continue button here!
	$upcontext['continue'] = 1;
}

// Template for the database backup tool/
function template_backup_database()
{
	global $upcontext, $support_js, $is_debug;

	echo '
			<h3>Please wait while a backup is created. For large forums this may take some time!</h3>';

	echo '
			<form action="', $upcontext['form_url'], '" name="upform" id="upform" method="post">
			<input type="hidden" name="backup_done" id="backup_done" value="0">
			<strong>Completed <span id="tab_done">', $upcontext['cur_table_num'], '</span> out of ', $upcontext['table_count'], ' tables.</strong>
			<span id="debuginfo"></span>';

	// Dont any tables so far?
	if (!empty($upcontext['previous_tables']))
		foreach ($upcontext['previous_tables'] as $table)
			echo '
			<br>Completed Table: &quot;', $table, '&quot;.';

	echo '
			<h3 id="current_tab_div">Current Table: &quot;<span id="current_table">', $upcontext['cur_table_name'], '</span>&quot;</h3>
			<br><span id="commess" style="font-weight: bold; display: ', $upcontext['cur_table_num'] == $upcontext['table_count'] ? 'inline' : 'none', ';">Backup Complete! Click Continue to Proceed.</span>';

	// Continue please!
	$upcontext['continue'] = $support_js ? 2 : 1;

	// If javascript allows we want to do this using XML.
	if ($support_js)
	{
		echo '
		<script>
			var lastTable = ', $upcontext['cur_table_num'], ';
			function getNextTables()
			{
				getXMLDocument(\'', $upcontext['form_url'], '&xml&substep=\' + lastTable, onBackupUpdate);
			}

			// Got an update!
			function onBackupUpdate(oXMLDoc)
			{
				var sCurrentTableName = "";
				var iTableNum = 0;
				var sCompletedTableName = getInnerHTML(document.getElementById(\'current_table\'));
				for (var i = 0; i < oXMLDoc.getElementsByTagName("table")[0].childNodes.length; i++)
					sCurrentTableName += oXMLDoc.getElementsByTagName("table")[0].childNodes[i].nodeValue;
				iTableNum = oXMLDoc.getElementsByTagName("table")[0].getAttribute("num");

				// Update the page.
				setInnerHTML(document.getElementById(\'tab_done\'), iTableNum);
				setInnerHTML(document.getElementById(\'current_table\'), sCurrentTableName);
				lastTable = iTableNum;
				updateStepProgress(iTableNum, ', $upcontext['table_count'], ', ', $upcontext['step_weight'] * ((100 - $upcontext['step_progress']) / 100), ');';

		// If debug flood the screen.
		if ($is_debug)
			echo '
				setOuterHTML(document.getElementById(\'debuginfo\'), \'<br>Completed Table: &quot;\' + sCompletedTableName + \'&quot;.<span id="debuginfo"><\' + \'/span>\');

				if (document.getElementById(\'debuginfo\').scrollHeight)
					document.getElementById(\'debuginfo\').scrollTop = document.getElementById(\'debuginfo\').scrollHeight;';

		echo '
				// Get the next update...
				if (iTableNum == ', $upcontext['table_count'], ')
				{
					document.getElementById(\'commess\').style.display = "";
					document.getElementById(\'current_tab_div\').style.display = "none";
					document.getElementById(\'contbutt\').disabled = 0;
					document.getElementById(\'backup_done\').value = 1;
				}
				else
					getNextTables();
			}
			getNextTables();
		</script>';
	}
}

function template_backup_xml()
{
	global $upcontext;

	echo '
	<table num="', $upcontext['cur_table_num'], '">', $upcontext['cur_table_name'], '</table>';
}

// Here is the actual "make the changes" template!
function template_database_changes()
{
	global $upcontext, $support_js, $is_debug, $timeLimitThreshold;

	if (empty($is_debug) && !empty($upcontext['upgrade_status']['debug']))
		$is_debug = true;

	echo '
		<h3>Executing database changes</h3>
		<h4 style="font-style: italic;">Please be patient - this may take some time on large forums. The time elapsed increments from the server to show progress is being made!</h4>';

	echo '
		<form action="', $upcontext['form_url'], '&amp;filecount=', $upcontext['file_count'], '" name="upform" id="upform" method="post">
		<input type="hidden" name="database_done" id="database_done" value="0">';

	// No javascript looks rubbish!
	if (!$support_js)
	{
		foreach ($upcontext['actioned_items'] as $num => $item)
		{
			if ($num != 0)
				echo ' Successful!';
			echo '<br>' . $item;
		}
		if (!empty($upcontext['changes_complete']))
		{
			if ($is_debug)
			{
				$active = time() - $upcontext['started'];
				$hours = floor($active / 3600);
				$minutes = intval(($active / 60) % 60);
				$seconds = intval($active % 60);

				$totalTime = '';
				if ($hours > 0)
					$totalTime .= $hours . ' hour' . ($hours > 1 ? 's':'') . ' ';
				if ($minutes > 0)
					$totalTime .= $minutes . ' minute' . ($minutes > 1 ? 's':'') . ' ';
				if ($seconds > 0)
					$totalTime .= $seconds . ' second' . ($seconds > 1 ? 's':'') . ' ';
			}

			if ($is_debug && !empty($totalTime))
				echo ' Successful! Completed in ', $totalTime, '<br><br>';
			else
				echo ' Successful!<br><br>';

			echo '<span id="commess" style="font-weight: bold;">1 Database Updates Complete! Click Continue to Proceed.</span><br>';
		}
	}
	else
	{
		// Tell them how many files we have in total.
		if ($upcontext['file_count'] > 1)
			echo '
		<strong id="info1">Executing upgrade script <span id="file_done">', $upcontext['cur_file_num'], '</span> of ', $upcontext['file_count'], '.</strong>';

		echo '
		<h3 id="info2"><strong>Executing:</strong> &quot;<span id="cur_item_name">', $upcontext['current_item_name'], '</span>&quot; (<span id="item_num">', $upcontext['current_item_num'], '</span> of <span id="total_items"><span id="item_count">', $upcontext['total_items'], '</span>', $upcontext['file_count'] > 1 ? ' - of this script' : '', ')</span></h3>
		<br><span id="commess" style="font-weight: bold; display: ', !empty($upcontext['changes_complete']) || $upcontext['current_debug_item_num'] == $upcontext['debug_items'] ? 'inline' : 'none', ';">Database Updates Complete! Click Continue to Proceed.</span>';

		if ($is_debug)
		{
			if ($upcontext['current_debug_item_num'] == $upcontext['debug_items'])
			{
				$active = time() - $upcontext['started'];
				$hours = floor($active / 3600);
				$minutes = intval(($active / 60) % 60);
				$seconds = intval($active % 60);

				$totalTime = '';
				if ($hours > 0)
					$totalTime .= $hours . ' hour' . ($hours > 1 ? 's':'') . ' ';
				if ($minutes > 0)
					$totalTime .= $minutes . ' minute' . ($minutes > 1 ? 's':'') . ' ';
				if ($seconds > 0)
					$totalTime .= $seconds . ' second' . ($seconds > 1 ? 's':'') . ' ';
			}

			echo '
			<br><span id="upgradeCompleted">';

			if (!empty($totalTime))
				echo 'Completed in ', $totalTime, '<br>';

			echo '</span>
			<div id="debug_section" style="height: 200px; overflow: auto;">
			<span id="debuginfo"></span>
			</div>';
		}
	}

	// Place for the XML error message.
	echo '
		<div id="error_block" style="margin: 2ex; padding: 2ex; border: 2px dashed #cc3344; color: black; background-color: #ffe4e9; display: ', empty($upcontext['error_message']) ? 'none' : '', ';">
			<div style="float: left; width: 2ex; font-size: 2em; color: red;">!!</div>
			<strong style="text-decoration: underline;">Error!</strong><br>
			<div style="padding-left: 6ex;" id="error_message">', isset($upcontext['error_message']) ? $upcontext['error_message'] : 'Unknown Error!', '</div>
		</div>';

	// We want to continue at some point!
	$upcontext['continue'] = $support_js ? 2 : 1;

	// If javascript allows we want to do this using XML.
	if ($support_js)
	{
		echo '
		<script>
			var lastItem = ', $upcontext['current_debug_item_num'], ';
			var sLastString = "', strtr($upcontext['current_debug_item_name'], array('"' => '&quot;')), '";
			var iLastSubStepProgress = -1;
			var curFile = ', $upcontext['cur_file_num'], ';
			var totalItems = 0;
			var prevFile = 0;
			var retryCount = 0;
			var testvar = 0;
			var timeOutID = 0;
			var getData = "";
			var debugItems = ', $upcontext['debug_items'], ';';

		if ($is_debug)
			echo '
			var upgradeStartTime = ' . $upcontext['started'] . ';';

		echo '
			function getNextItem()
			{
				// We want to track this...
				if (timeOutID)
					clearTimeout(timeOutID);
				timeOutID = window.setTimeout("retTimeout()", ', (10 * $timeLimitThreshold), '000);

				getXMLDocument(\'', $upcontext['form_url'], '&xml&filecount=', $upcontext['file_count'], '&substep=\' + lastItem + getData, onItemUpdate);
			}

			// Got an update!
			function onItemUpdate(oXMLDoc)
			{
				var sItemName = "";
				var sDebugName = "";
				var iItemNum = 0;
				var iSubStepProgress = -1;
				var iDebugNum = 0;
				var bIsComplete = 0;
				getData = "";

				// We\'ve got something - so reset the timeout!
				if (timeOutID)
					clearTimeout(timeOutID);

				// Assume no error at this time...
				document.getElementById("error_block").style.display = "none";

				// Are we getting some duff info?
				if (!oXMLDoc.getElementsByTagName("item")[0])
				{
					// Too many errors?
					if (retryCount > 15)
					{
						document.getElementById("error_block").style.display = "";
						setInnerHTML(document.getElementById("error_message"), "Error retrieving information on step: " + (sDebugName == "" ? sLastString : sDebugName));';

	if ($is_debug)
		echo '
						setOuterHTML(document.getElementById(\'debuginfo\'), \'<span style="color: red;">failed<\' + \'/span><span id="debuginfo"><\' + \'/span>\');';

	echo '
					}
					else
					{
						retryCount++;
						getNextItem();
					}
					return false;
				}

				// Never allow loops.
				if (curFile == prevFile)
				{
					retryCount++;
					if (retryCount > 10)
					{
						document.getElementById("error_block").style.display = "";
						setInnerHTML(document.getElementById("error_message"), "Upgrade script appears to be going into a loop - step: " + sDebugName);';

	if ($is_debug)
		echo '
						setOuterHTML(document.getElementById(\'debuginfo\'), \'<span style="color: red;">failed<\' + \'/span><span id="debuginfo"><\' + \'/span>\');';

	echo '
					}
				}
				retryCount = 0;

				for (var i = 0; i < oXMLDoc.getElementsByTagName("item")[0].childNodes.length; i++)
					sItemName += oXMLDoc.getElementsByTagName("item")[0].childNodes[i].nodeValue;
				for (var i = 0; i < oXMLDoc.getElementsByTagName("debug")[0].childNodes.length; i++)
					sDebugName += oXMLDoc.getElementsByTagName("debug")[0].childNodes[i].nodeValue;
				for (var i = 0; i < oXMLDoc.getElementsByTagName("get").length; i++)
				{
					getData += "&" + oXMLDoc.getElementsByTagName("get")[i].getAttribute("key") + "=";
					for (var j = 0; j < oXMLDoc.getElementsByTagName("get")[i].childNodes.length; j++)
					{
						getData += oXMLDoc.getElementsByTagName("get")[i].childNodes[j].nodeValue;
					}
				}

				iItemNum = oXMLDoc.getElementsByTagName("item")[0].getAttribute("num");
				iDebugNum = parseInt(oXMLDoc.getElementsByTagName("debug")[0].getAttribute("num"));
				bIsComplete = parseInt(oXMLDoc.getElementsByTagName("debug")[0].getAttribute("complete"));
				iSubStepProgress = parseFloat(oXMLDoc.getElementsByTagName("debug")[0].getAttribute("percent"));
				sLastString = sDebugName + " (Item: " + iDebugNum + ")";

				curFile = parseInt(oXMLDoc.getElementsByTagName("file")[0].getAttribute("num"));
				debugItems = parseInt(oXMLDoc.getElementsByTagName("file")[0].getAttribute("debug_items"));
				totalItems = parseInt(oXMLDoc.getElementsByTagName("file")[0].getAttribute("items"));

				// If we have an error we haven\'t completed!
				if (oXMLDoc.getElementsByTagName("error")[0] && bIsComplete)
					iDebugNum = lastItem;

				// Do we have the additional progress bar?
				if (iSubStepProgress != -1)
				{
					document.getElementById("substep_bar_div").style.display = "";
					document.getElementById("substep_bar_div2").style.display = "";
					document.getElementById("substep_progress").style.width = iSubStepProgress + "%";
					setInnerHTML(document.getElementById("substep_text"), iSubStepProgress + "%");
					setInnerHTML(document.getElementById("substep_bar_div"), sDebugName.replace(/\./g, "") + ":");
				}
				else
				{
					document.getElementById("substep_bar_div").style.display = "none";
					document.getElementById("substep_bar_div2").style.display = "none";
				}

				// Move onto the next item?
				if (bIsComplete)
					lastItem = iDebugNum;
				else
					lastItem = iDebugNum - 1;

				// Are we finished?
				if (bIsComplete && iDebugNum == -1 && curFile >= ', $upcontext['file_count'], ')
				{';

		if ($is_debug)
			echo '
					document.getElementById(\'debug_section\').style.display = "none";

					var upgradeFinishedTime = parseInt(oXMLDoc.getElementsByTagName("curtime")[0].childNodes[0].nodeValue);
					var diffTime = upgradeFinishedTime - upgradeStartTime;
					var diffHours = Math.floor(diffTime / 3600);
					var diffMinutes = parseInt((diffTime / 60) % 60);
					var diffSeconds = parseInt(diffTime % 60);

					var totalTime = "";
					if (diffHours > 0)
						totalTime = totalTime + diffHours + " hour" + (diffHours > 1 ? "s" : "") + " ";
					if (diffMinutes > 0)
						totalTime = totalTime + diffMinutes + " minute" + (diffMinutes > 1 ? "s" : "") + " ";
					if (diffSeconds > 0)
						totalTime = totalTime + diffSeconds + " second" + (diffSeconds > 1 ? "s" : "");

					setInnerHTML(document.getElementById("upgradeCompleted"), "Completed in " + totalTime);';

		echo '

					document.getElementById(\'commess\').style.display = "";
					document.getElementById(\'contbutt\').disabled = 0;
					document.getElementById(\'database_done\').value = 1;';

		if ($upcontext['file_count'] > 1)
			echo '
					document.getElementById(\'info1\').style.display = "none";';

		echo '
					document.getElementById(\'info2\').style.display = "none";
					updateStepProgress(100, 100, ', $upcontext['step_weight'] * ((100 - $upcontext['step_progress']) / 100), ');
					return true;
				}
				// Was it the last step in the file?
				else if (bIsComplete && iDebugNum == -1)
				{
					lastItem = 0;
					prevFile = curFile;';

		if ($is_debug)
			echo '
					setOuterHTML(document.getElementById(\'debuginfo\'), \'Moving to next script file...done<br><span id="debuginfo"><\' + \'/span>\');';

		echo '
					getNextItem();
					return true;
				}';

		// If debug scroll the screen.
		if ($is_debug)
			echo '
				if (iLastSubStepProgress == -1)
				{
					// Give it consistent dots.
					dots = sDebugName.match(/\./g);
					numDots = dots ? dots.length : 0;
					for (var i = numDots; i < 3; i++)
						sDebugName += ".";
					setOuterHTML(document.getElementById(\'debuginfo\'), sDebugName + \'<span id="debuginfo"><\' + \'/span>\');
				}
				iLastSubStepProgress = iSubStepProgress;

				if (bIsComplete)
					setOuterHTML(document.getElementById(\'debuginfo\'), \'done<br><span id="debuginfo"><\' + \'/span>\');
				else
					setOuterHTML(document.getElementById(\'debuginfo\'), \'...<span id="debuginfo"><\' + \'/span>\');

				if (document.getElementById(\'debug_section\').scrollHeight)
					document.getElementById(\'debug_section\').scrollTop = document.getElementById(\'debug_section\').scrollHeight';

		echo '
				// Update the page.
				setInnerHTML(document.getElementById(\'item_num\'), iItemNum);
				setInnerHTML(document.getElementById(\'cur_item_name\'), sItemName);';

		if ($upcontext['file_count'] > 1)
		{
			echo '
				setInnerHTML(document.getElementById(\'file_done\'), curFile);
				setInnerHTML(document.getElementById(\'item_count\'), totalItems);';
		}

		echo '
				// Is there an error?
				if (oXMLDoc.getElementsByTagName("error")[0])
				{
					var sErrorMsg = "";
					for (var i = 0; i < oXMLDoc.getElementsByTagName("error")[0].childNodes.length; i++)
						sErrorMsg += oXMLDoc.getElementsByTagName("error")[0].childNodes[i].nodeValue;
					document.getElementById("error_block").style.display = "";
					setInnerHTML(document.getElementById("error_message"), sErrorMsg);
					return false;
				}

				// Get the progress bar right.
				barTotal = debugItems * ', $upcontext['file_count'], ';
				barDone = (debugItems * (curFile - 1)) + lastItem;

				updateStepProgress(barDone, barTotal, ', $upcontext['step_weight'] * ((100 - $upcontext['step_progress']) / 100), ');

				// Finally - update the time here as it shows the server is responding!
				curTime = new Date();
				iElapsed = (curTime.getTime() / 1000 - ', $upcontext['started'], ');
				mins = parseInt(iElapsed / 60);
				secs = parseInt(iElapsed - mins * 60);
				setInnerHTML(document.getElementById("mins_elapsed"), mins);
				setInnerHTML(document.getElementById("secs_elapsed"), secs);

				getNextItem();
				return true;
			}

			// What if we timeout?!
			function retTimeout(attemptAgain)
			{
				// Oh noes...
				if (!attemptAgain)
				{
					document.getElementById("error_block").style.display = "";
					setInnerHTML(document.getElementById("error_message"), "Server has not responded for ', ($timeLimitThreshold * 10), ' seconds. It may be worth waiting a little longer or otherwise please click <a href=\"#\" onclick=\"retTimeout(true); return false;\">here<" + "/a> to try this step again");
				}
				else
				{
					document.getElementById("error_block").style.display = "none";
					getNextItem();
				}
			}';

		// Start things off assuming we've not errored.
		if (empty($upcontext['error_message']))
			echo '
			getNextItem();';

		echo '
		</script>';
	}
	return;
}

function template_database_xml()
{
	global $is_debug, $upcontext, $txt;

	echo '
	<file num="', $upcontext['cur_file_num'], '" items="', $upcontext['total_items'], '" debug_items="', $upcontext['debug_items'], '">', $upcontext['cur_file_name'], '</file>
	<item num="', $upcontext['current_item_num'], '">', $upcontext['current_item_name'], '</item>
	<debug num="', $upcontext['current_debug_item_num'], '" percent="', isset($upcontext['substep_progress']) ? $upcontext['substep_progress'] : '-1', '" complete="', empty($upcontext['completed_step']) ? 0 : 1, '">', $upcontext['current_debug_item_name'], '</debug>';

	if (!empty($upcontext['error_message']))
		echo '
	<error>', $upcontext['error_message'], '</error>';

	if (!empty($upcontext['error_string']))
		echo '
	<sql>', $upcontext['error_string'], '</sql>';

	if ($is_debug)
		echo '
	<curtime>', time(), '</curtime>';
}

// Template for the UTF-8 conversion step. Basically a copy of the backup stuff with slight modifications....
function template_convert_utf8()

{
	global $upcontext, $support_js, $is_debug;

	echo '
			<h3>Please wait while your database is converted to UTF-8. For large forums this may take some time!</h3>';

	echo '
			<form action="', $upcontext['form_url'], '" name="upform" id="upform" method="post">
			<input type="hidden" name="utf8_done" id="utf8_done" value="0">
			<strong>Completed <span id="tab_done">', $upcontext['cur_table_num'], '</span> out of ', $upcontext['table_count'], ' tables.</strong>
			<span id="debuginfo"></span>';

	// Done any tables so far?
	if (!empty($upcontext['previous_tables']))
		foreach ($upcontext['previous_tables'] as $table)
			echo '
			<br>Completed Table: &quot;', $table, '&quot;.';

	echo '
			<h3 id="current_tab_div">Current Table: &quot;<span id="current_table">', $upcontext['cur_table_name'], '</span>&quot;</h3>';

	// If we dropped their index, let's let them know
	if ($upcontext['cur_table_num'] == $upcontext['table_count'] && $upcontext['dropping_index'])
		echo '
			<br><span style="display:inline;">Please note that your fulltext index was dropped to facilitate the conversion and will need to be recreated.</span>';

	echo '
			<br><span id="commess" style="font-weight: bold; display: ', $upcontext['cur_table_num'] == $upcontext['table_count'] ? 'inline' : 'none', ';">Conversion Complete! Click Continue to Proceed.</span>';

	// Continue please!
	$upcontext['continue'] = $support_js ? 2 : 1;

	// If javascript allows we want to do this using XML.
	if ($support_js)
	{
		echo '
		<script>
			var lastTable = ', $upcontext['cur_table_num'], ';
			function getNextTables()
			{
				getXMLDocument(\'', $upcontext['form_url'], '&xml&substep=\' + lastTable, onBackupUpdate);
			}

			// Got an update!
			function onBackupUpdate(oXMLDoc)
			{
				var sCurrentTableName = "";
				var iTableNum = 0;
				var sCompletedTableName = getInnerHTML(document.getElementById(\'current_table\'));
				for (var i = 0; i < oXMLDoc.getElementsByTagName("table")[0].childNodes.length; i++)
					sCurrentTableName += oXMLDoc.getElementsByTagName("table")[0].childNodes[i].nodeValue;
				iTableNum = oXMLDoc.getElementsByTagName("table")[0].getAttribute("num");

				// Update the page.
				setInnerHTML(document.getElementById(\'tab_done\'), iTableNum);
				setInnerHTML(document.getElementById(\'current_table\'), sCurrentTableName);
				lastTable = iTableNum;
				updateStepProgress(iTableNum, ', $upcontext['table_count'], ', ', $upcontext['step_weight'] * ((100 - $upcontext['step_progress']) / 100), ');';

		// If debug flood the screen.
		if ($is_debug)
			echo '
				setOuterHTML(document.getElementById(\'debuginfo\'), \'<br>Completed Table: &quot;\' + sCompletedTableName + \'&quot;.<span id="debuginfo"><\' + \'/span>\');';

		echo '
				// Get the next update...
				if (iTableNum == ', $upcontext['table_count'], ')
				{
					document.getElementById(\'commess\').style.display = "";
					document.getElementById(\'current_tab_div\').style.display = "none";
					document.getElementById(\'contbutt\').disabled = 0;
					document.getElementById(\'utf8_done\').value = 1;
				}
				else
					getNextTables();
			}
			getNextTables();
		</script>';
	}
}

function template_utf8_xml()
{
	global $upcontext;

	echo '
	<table num="', $upcontext['cur_table_num'], '">', $upcontext['cur_table_name'], '</table>';
}

function template_clean_mods()
{
	global $upcontext;

	$upcontext['chmod_in_form'] = true;

	echo '
	<h3>SMF has detected some packages which were installed but not fully removed prior to upgrade. We recommend you remove the following mods and reinstall upon completion of the upgrade.</h3>
	<form action="', $upcontext['form_url'], '&amp;ssi=1" name="upform" id="upform" method="post">';

	// In case it's required.
	template_chmod();

	echo '
		<table width="90%" align="center" style="background-color: black;">
			<tr style="background-color: #eeeeee;">
				<td width="40%"><strong>Modification Name</strong></td>
				<td width="10%" align="center"><strong>Version</strong></td>
				<td width="15%"><strong>Files Affected</strong></td>
				<td width="20%"><strong>Status</strong></td>
				<td width="5%" align="center"><strong>Fix?</strong></td>
			</tr>';

	foreach ($upcontext['packages'] as $package)
	{
		echo '
			<tr style="background-color: #cccccc;">
				<td width="40%">', $package['name'], '</td>
				<td width="10%">', $package['version'], '</td>
				<td width="15%">', $package['file_count'], ' <span class="smalltext">[<a href="#" onclick="alert(\'The following files are affected by this modification:\\n\\n', strtr(implode('<br>', $package['files']), array('\\' => '\\\\', '<br>' => '\\n')), '\'); return false;">details</a>]</td>
				<td width="20%"><span style="font-weight: bold; color: ', $package['color'], '">', $package['status'], '</span></td>
				<td width="5%" align="center">
					<input type="hidden" name="remove[', $package['id'], ']" value="0">
					<input type="checkbox" name="remove[', $package['id'], ']"', $package['color'] == 'green' ? ' disabled' : '', ' class="input_check">
				</td>
			</tr>';
	}
	echo '
		</table>
		<input type="hidden" name="cleandone" value="1">';

	// Files to make writable?
	if (!empty($upcontext['writable_files']))

		echo '
		<input type="hidden" name="writable_files" value="', base64_encode(safe_serialize($upcontext['writable_files'])), '">';

	// We'll want a continue button...
	if (empty($upcontext['chmod']['files']))
		$upcontext['continue'] = 1;
}

// Finished with the mods - let them know what we've done.
function template_cleanup_done()
{
	global $upcontext;

	echo '
	<h3>SMF has attempted to fix and reinstall mods as required. We recommend you visit the package manager upon completing upgrade to check the status of your modifications.</h3>
	<form action="', $upcontext['form_url'], '&amp;ssi=1" name="upform" id="upform" method="post">
		<table width="90%" align="center" style="background-color: black;">
			<tr style="background-color: #eeeeee;">
				<td width="100%"><strong>Actions Completed:</strong></td>
			</tr>';

	foreach ($upcontext['packages'] as $package)
	{
		echo '
			<tr style="background-color: #cccccc;">
				<td>', $package['name'], '... <span style="font-weight: bold; color: ', $package['color'], ';">', $package['result'], '</span></td>
			</tr>';
	}
	echo '
		</table>
		<input type="hidden" name="cleandone2" value="1">';

	// We'll want a continue button...
	$upcontext['continue'] = 1;
}

// Do they want to upgrade their templates?
function template_upgrade_templates()
{
	global $upcontext;

	echo '
	<h3>There have been numerous language and template changes since the previous version of SMF. On this step the upgrader can attempt to automatically make these changes in your templates to save you from doing so manually.</h3>
	<form action="', $upcontext['form_url'], '&amp;ssi=1', $upcontext['is_test'] ? '' : ';forreal=1', '" name="upform" id="upform" method="post">';

	// Any files need to be writable?
	$upcontext['chmod_in_form'] = true;
	template_chmod();

	// Language/Template files need an update?
	if ($upcontext['temp_progress'] == 0 && !$upcontext['is_test'] && (!empty($upcontext['languages']) || !empty($upcontext['themes'])))
	{
		echo '
		The following template files will be updated to ensure they are compatible with this version of SMF. Note that this can only fix a limited number of compatibility issues and in general you should seek out the latest version of these themes/language files.
		<table width="90%" align="center" style="background-color: black;">
			<tr style="background-color: #eeeeee;">
				<td width="80%"><strong>Area</strong></td>
				<td width="20%" align="center"><strong>Changes Required</strong></td>
			</tr>';

		foreach ($upcontext['languages'] as $language)

		{
			echo '
				<tr style="background-color: #cccccc;">
					<td width="80%">
						&quot;', $language['name'], '&quot; Language Pack
						<div class="smalltext">(';

			foreach ($language['files'] as $k => $file)
				echo $file['name'], $k + 1 != count($language['files']) ? ', ' : ')';

			echo '
						</div>
					</td>
					<td width="20%" align="center">', $language['edit_count'] == 0 ? 1 : $language['edit_count'], '</td>
				</tr>';
		}

		foreach ($upcontext['themes'] as $theme)

		{
			echo '
				<tr style="background-color: #CCCCCC;">
					<td width="80%">
						&quot;', $theme['name'], '&quot; Theme
						<div class="smalltext">(';

			foreach ($theme['files'] as $k => $file)
				echo $file['name'], $k + 1 != count($theme['files']) ? ', ' : ')';

			echo '
						</div>
					</td>
					<td width="20%" align="center">', $theme['edit_count'] == 0 ? 1 : $theme['edit_count'], '</td>
				</tr>';
		}

		echo '
		</table>';
	}
	else
	{
		$langFiles = 0;
		$themeFiles = 0;
		if (!empty($upcontext['languages']))
			foreach ($upcontext['languages'] as $lang)

				$langFiles += count($lang['files']);
		if (!empty($upcontext['themes']))
			foreach ($upcontext['themes'] as $theme)

				$themeFiles += count($theme['files']);
		echo sprintf('Found <strong>%d</strong> language files and <strong>%d</strong> templates requiring an update so far.', $langFiles, $themeFiles) . '<br>';

		// What we're currently doing?
		if (!empty($upcontext['current_message']))
			echo '
				', $upcontext['current_message'];
	}

	echo '
		<input type="hidden" name="uptempdone" value="1">';

	if (!empty($upcontext['languages']))

		echo '
		<input type="hidden" name="languages" value="', base64_encode(safe_serialize($upcontext['languages'])), '">';
	if (!empty($upcontext['themes']))

		echo '
		<input type="hidden" name="themes" value="', base64_encode(safe_serialize($upcontext['themes'])), '">';
	if (!empty($upcontext['writable_files']))

		echo '
		<input type="hidden" name="writable_files" value="', base64_encode(safe_serialize($upcontext['writable_files'])), '">';

	// Offer them the option to upgrade from YaBB SE?
	if (!empty($upcontext['can_upgrade_yabbse']))
		echo '
		<br><label for="conv"><input type="checkbox" name="conv" id="conv" value="1" class="input_check"> Convert the existing YaBB SE template and set it as default.</label><br>';

	// We'll want a continue button... assuming chmod is OK (Otherwise let them use connect!)
	if (empty($upcontext['chmod']['files']) || $upcontext['is_test'])
		$upcontext['continue'] = 1;
}

// Template for the database backup tool/
function template_serialize_json()

{
	global $upcontext, $support_js, $is_debug;

	echo '
			<h3>Converting data from serialize to JSON...</h3>';

	echo '
			<form action="', $upcontext['form_url'], '" name="upform" id="upform" method="post">
			<input type="hidden" name="json_done" id="json_done" value="0">
			<strong>Completed <span id="tab_done">', $upcontext['cur_table_num'], '</span> out of ', $upcontext['table_count'], ' tables.</strong>
			<span id="debuginfo"></span>';

	// Dont any tables so far?
	if (!empty($upcontext['previous_tables']))
		foreach ($upcontext['previous_tables'] as $table)
			echo '
			<br>Completed Table: &quot;', $table, '&quot;.';

	echo '
			<h3 id="current_tab_div">Current Table: &quot;<span id="current_table">', $upcontext['cur_table_name'], '</span>&quot;</h3>
			<br><span id="commess" style="font-weight: bold; display: ', $upcontext['cur_table_num'] == $upcontext['table_count'] ? 'inline' : 'none', ';">Convert to JSON Complete! Click Continue to Proceed.</span>';

	// Try to make sure substep was reset.
	if ($upcontext['cur_table_num'] == $upcontext['table_count'])
		echo '
			<input type="hidden" name="substep" id="substep" value="0">';

	// Continue please!
	$upcontext['continue'] = $support_js ? 2 : 1;

	// If javascript allows we want to do this using XML.
	if ($support_js)
	{
		echo '
		<script>
			var lastTable = ', $upcontext['cur_table_num'], ';
			function getNextTables()
			{
				getXMLDocument(\'', $upcontext['form_url'], '&xml&substep=\' + lastTable, onBackupUpdate);
			}

			// Got an update!
			function onBackupUpdate(oXMLDoc)
			{
				var sCurrentTableName = "";
				var iTableNum = 0;
				var sCompletedTableName = getInnerHTML(document.getElementById(\'current_table\'));
				for (var i = 0; i < oXMLDoc.getElementsByTagName("table")[0].childNodes.length; i++)
					sCurrentTableName += oXMLDoc.getElementsByTagName("table")[0].childNodes[i].nodeValue;
				iTableNum = oXMLDoc.getElementsByTagName("table")[0].getAttribute("num");

				// Update the page.
				setInnerHTML(document.getElementById(\'tab_done\'), iTableNum);
				setInnerHTML(document.getElementById(\'current_table\'), sCurrentTableName);
				lastTable = iTableNum;
				updateStepProgress(iTableNum, ', $upcontext['table_count'], ', ', $upcontext['step_weight'] * ((100 - $upcontext['step_progress']) / 100), ');';

		// If debug flood the screen.
		if ($is_debug)
			echo '
				setOuterHTML(document.getElementById(\'debuginfo\'), \'<br>Completed Table: &quot;\' + sCompletedTableName + \'&quot;.<span id="debuginfo"><\' + \'/span>\');';

		echo '
				// Get the next update...
				if (iTableNum == ', $upcontext['table_count'], ')
				{
					document.getElementById(\'commess\').style.display = "";
					document.getElementById(\'current_tab_div\').style.display = "none";
					document.getElementById(\'contbutt\').disabled = 0;
					document.getElementById(\'json_done\').value = 1;
				}
				else
					getNextTables();
			}
			getNextTables();
		</script>';
	}
}

function template_serialize_json_xml()
{
	global $upcontext;

	echo '
	<table num="', $upcontext['cur_table_num'], '">', $upcontext['cur_table_name'], '</table>';
}

function template_upgrade_complete()
{
	global $upcontext, $upgradeurl, $settings, $boardurl, $is_debug;

	echo '
	<h3>That wasn\'t so hard, was it?  Now you are ready to use <a href="', $boardurl, '/index.php">your installation of SMF</a>.  Hope you like it!</h3>
	<form action="', $boardurl, '/index.php">';

	if (!empty($upcontext['can_delete_script']))
		echo '
			<label for="delete_self"><input type="checkbox" id="delete_self" onclick="doTheDelete(this);" class="input_check"> Delete upgrade.php and its data files now</label> <em>(doesn\'t work on all servers).</em>
			<script>
				function doTheDelete(theCheck)
				{
					var theImage = document.getElementById ? document.getElementById("delete_upgrader") : document.all.delete_upgrader;

					theImage.src = "', $upgradeurl, '?delete=1&ts_" + (new Date().getTime());
					theCheck.disabled = true;
				}
			</script>
			<img src="', $settings['default_theme_url'], '/images/blank.png" alt="" id="delete_upgrader"><br>';

	$active = time() - $upcontext['started'];
	$hours = floor($active / 3600);
	$minutes = intval(($active / 60) % 60);
	$seconds = intval($active % 60);

	if ($is_debug)
	{
		$totalTime = '';
		if ($hours > 0)
			$totalTime .= $hours . ' hour' . ($hours > 1 ? 's':'') . ' ';
		if ($minutes > 0)
			$totalTime .= $minutes . ' minute' . ($minutes > 1 ? 's':'') . ' ';
		if ($seconds > 0)
			$totalTime .= $seconds . ' second' . ($seconds > 1 ? 's':'') . ' ';
	}

	if ($is_debug && !empty($totalTime))
		echo '<br> Upgrade completed in ', $totalTime, '<br><br>';

	echo '<br>
			If you had any problems with this upgrade, or have any problems using SMF, please don\'t hesitate to <a href="http://www.simplemachines.org/community/index.php">look to us for assistance</a>.<br>
			<br>
			Best of luck,<br>
			Simple Machines';
}

/**
 * Convert MySQL (var)char ip col to binary
 * newCol needs to be a varbinary(16) null able field
 * return true or false
 */
function MySQLConvertOldIp($targetTable, $oldCol, $newCol, $limit = 50000, $setSize = 100)
{
	global $smcFunc, $step_progress;

	$step_progress['name'] = 'Converting ips';
	$step_progress['current'] = $_GET['a'];

	// Skip this if we don't have the column
	$request = $smcFunc['db_query']('', '
		SHOW FIELDS
		FROM {db_prefix}{raw:table}
		WHERE Field = {string:name}',
		array(
			'table' => $targetTable,
			'name' => $oldCol,
	));
	if ($smcFunc['db_num_rows']($request) !== 1)
	{
		$smcFunc['db_free_result']($request);
		return;
	}
	$smcFunc['db_free_result']($request);

	//mysql default max length is 1mb http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
	$arIp = array();

	$is_done = false;
	while (!$is_done)
	{
		nextSubStep($substep);


		$request = $smcFunc['db_query']('', '
			SELECT DISTINCT {raw:old_col}
			FROM {db_prefix}{raw:table_name}
			WHERE {raw:new_col} IS NULL
			LIMIT {int:limit}',
			array(
				'old_col' => $oldCol,
				'new_col' => $newCol,
				'table_name' => $targetTable,
				'empty' => '',
				'limit' => $limit,
		));
		while ($row = $smcFunc['db_fetch_assoc']($request))
			$arIp[] = $row[$oldCol];
		$smcFunc['db_free_result']($request);

		// Special case, null ip could keep us in a loop.
		if (is_null($arIp[0]))
			unset($arIp[0]);

		if (empty($arIp))
			$is_done = true;

		$updates = array();
		$cases = array();
		$count = count($arIp);
		for ($i = 0; $i < $count; $i++)
		{
			$arIp[$i] = trim($arIp[$i]);

			if (empty($arIp[$i]))
				continue;

			$updates['ip' . $i] = $arIp[$i];
			$cases[$arIp[$i]] = 'WHEN ' . $oldCol . ' = {string:ip' . $i . '} THEN {inet:ip' . $i . '}';

			if ($setSize > 0 && $i % $setSize === 0)
			{
				if (count($updates) == 1)
					continue;

				$updates['whereSet'] = array_values($updates);
				$smcFunc['db_query']('', '
					UPDATE {db_prefix}' . $targetTable . '
					SET ' . $newCol . ' = CASE ' .
					implode('
						', $cases) . '
						ELSE NULL
					END
					WHERE ' . $oldCol . ' IN ({array_string:whereSet})',
					$updates
				);

				$updates = array();
				$cases = array();
			}
		}

		// Incase some extras made it through.
		if (!empty($updates))
		{
			if (count($updates) == 1)
			{
				foreach ($updates as $key => $ip)
				{
					$request = $smcFunc['db_query']('', '
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
						UPDATE {db_prefix}' . $targetTable . '
						SET ' . $newCol . ' = {inet:ip}
						WHERE ' . $oldCol . ' = {string:ip}',
						array(
							'ip' => $ip
					));
				}
			}
			else
			{
				$updates['whereSet'] = array_values($updates);
				$request = $smcFunc['db_query']('', '
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
					UPDATE {db_prefix}' . $targetTable . '
					SET ' . $newCol . ' = CASE ' .
					implode('
						', $cases) . '
						ELSE NULL
					END
					WHERE ' . $oldCol . ' IN ({array_string:whereSet})',
					$updates
				);
			}
		}
		else
			$is_done = true;

		$_GET['a'] += $limit;
		$step_progress['current'] = $_GET['a'];
	}

	unset($_GET['a']);
}

?>


Push — release-2.1 ( f9d087...e49a83 )

upgrade.php ➔ clean_cache() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Antes / kittenground

Push — release-2.1 ( f9d087...e49a83 )

upgrade.php ➔ clean_cache() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Duplication Side-by-Side

Filter issues like
