SimpleMachines / SMF2.1

SSI.php

<?php

/**
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines https://www.simplemachines.org
 * @copyright 2021 Simple Machines and individual contributors
 * @license https://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 2.1 RC4
 */

// Don't do anything if SMF is already loaded.
if (defined('SMF'))
	return true;

define('SMF', 'SSI');
define('SMF_VERSION', '2.1 RC4');
define('SMF_FULL_VERSION', 'SMF ' . SMF_VERSION);
define('SMF_SOFTWARE_YEAR', '2021');
define('JQUERY_VERSION', '3.6.0');
define('POSTGRE_TITLE', 'PostgreSQL');
define('MYSQL_TITLE', 'MySQL');
define('SMF_USER_AGENT', 'Mozilla/5.0 (' . php_uname('s') . ' ' . php_uname('m') . ') AppleWebKit/605.1.15 (KHTML, like Gecko)  SMF/' . strtr(SMF_VERSION, ' ', '.'));

// Just being safe...  Do this before defining globals as otherwise it unsets the global.
foreach (array('db_character_set', 'cachedir') as $variable)
	unset($GLOBALS[$variable]);

// We're going to want a few globals... these are all set later.
global $maintenance, $msubject, $mmessage, $mbname, $language;
global $boardurl, $boarddir, $sourcedir, $webmaster_email, $cookiename;
global $db_type, $db_server, $db_name, $db_user, $db_prefix, $db_persist, $db_error_send, $db_last_error, $db_show_debug;
global $db_connection, $db_port, $modSettings, $context, $sc, $user_info, $topic, $board, $txt;
global $smcFunc, $ssi_db_user, $scripturl, $ssi_db_passwd, $db_passwd, $cache_enable, $cachedir;
global $auth_secret;

if (!defined('TIME_START'))
	define('TIME_START', microtime(true));

// Get the forum's settings for database and file paths.
require_once(dirname(__FILE__) . '/Settings.php');

// Make absolutely sure the cache directory is defined and writable.
if (empty($cachedir) || !is_dir($cachedir) || !is_writable($cachedir))
{
	if (is_dir($boarddir . '/cache') && is_writable($boarddir . '/cache'))
		$cachedir = $boarddir . '/cache';
	else
	{
		$cachedir = sys_get_temp_dir() . '/smf_cache_' . md5($boarddir);
		@mkdir($cachedir, 0750);
	}
}

$ssi_error_reporting = error_reporting(!empty($db_show_debug) ? E_ALL : E_ALL & ~E_DEPRECATED);
/* Set this to one of three values depending on what you want to happen in the case of a fatal error.
	false:	Default, will just load the error sub template and die - not putting any theme layers around it.
	true:	Will load the error sub template AND put the SMF layers around it (Not useful if on total custom pages).
	string:	Name of a callback function to call in the event of an error to allow you to define your own methods. Will die after function returns.
*/
$ssi_on_error_method = false;

// Don't do john didley if the forum's been shut down completely.
if ($maintenance == 2 && (!isset($ssi_maintenance_off) || $ssi_maintenance_off !== true))
	die($mmessage);

// Fix for using the current directory as a path.
if (substr($sourcedir, 0, 1) == '.' && substr($sourcedir, 1, 1) != '.')
	$sourcedir = dirname(__FILE__) . substr($sourcedir, 1);

// Load the important includes.
require_once($sourcedir . '/QueryString.php');
require_once($sourcedir . '/Session.php');
require_once($sourcedir . '/Subs.php');
require_once($sourcedir . '/Errors.php');
require_once($sourcedir . '/Logging.php');
require_once($sourcedir . '/Load.php');
require_once($sourcedir . '/Security.php');
require_once($sourcedir . '/Class-BrowserDetect.php');
require_once($sourcedir . '/Subs-Auth.php');

// Create a variable to store some SMF specific functions in.
$smcFunc = array();

// Initiate the database connection and define some database functions to use.
loadDatabase();

/**
 * An autoloader for certain classes.
 *
 * @param string $class The fully-qualified class name.
 */
spl_autoload_register(function($class) use ($sourcedir)
{
	$classMap = array(
		'ReCaptcha\\' => 'ReCaptcha/',
		'MatthiasMullie\\Minify\\' => 'minify/src/',
		'MatthiasMullie\\PathConverter\\' => 'minify/path-converter/src/',
		'SMF\\Cache\\' => 'Cache/',
	);

	// Do any third-party scripts want in on the fun?
	call_integration_hook('integrate_autoload', array(&$classMap));

	foreach ($classMap as $prefix => $dirName)
	{
		// does the class use the namespace prefix?
		$len = strlen($prefix);
		if (strncmp($prefix, $class, $len) !== 0)
		{
			continue;
		}

		// get the relative class name
		$relativeClass = substr($class, $len);

		// replace the namespace prefix with the base directory, replace namespace
		// separators with directory separators in the relative class name, append
		// with .php
		$fileName = $dirName . strtr($relativeClass, '\\', '/') . '.php';

		// if the file exists, require it
		if (file_exists($fileName = $sourcedir . '/' . $fileName))
		{
			require_once $fileName;

			return;
		}
	}
});

// Load installed 'Mods' settings.
reloadSettings();
// Clean the request variables.
cleanRequest();

// Seed the random generator?
if (empty($modSettings['rand_seed']) || mt_rand(1, 250) == 69)
	smf_seed_generator();

// Check on any hacking attempts.
if (isset($_REQUEST['GLOBALS']) || isset($_COOKIE['GLOBALS']))
	die('No direct access...');
elseif (isset($_REQUEST['ssi_theme']) && (int) $_REQUEST['ssi_theme'] == (int) $ssi_theme)
	die('No direct access...');
elseif (isset($_COOKIE['ssi_theme']) && (int) $_COOKIE['ssi_theme'] == (int) $ssi_theme)
	die('No direct access...');
elseif (isset($_REQUEST['ssi_layers'], $ssi_layers) && (@get_magic_quotes_gpc() ? stripslashes($_REQUEST['ssi_layers']) : $_REQUEST['ssi_layers']) == $ssi_layers)
	die('No direct access...');
if (isset($_REQUEST['context']))
	die('No direct access...');

// Gzip output? (because it must be boolean and true, this can't be hacked.)
if (isset($ssi_gzip) && $ssi_gzip === true && ini_get('zlib.output_compression') != '1' && ini_get('output_handler') != 'ob_gzhandler' && version_compare(PHP_VERSION, '4.2.0', '>='))
	ob_start('ob_gzhandler');
else
	$modSettings['enableCompressedOutput'] = '0';

// Primarily, this is to fix the URLs...
ob_start('ob_sessrewrite');

// Start the session... known to scramble SSI includes in cases...
if (!headers_sent())
	loadSession();
else
{
	if (isset($_COOKIE[session_name()]) || isset($_REQUEST[session_name()]))
	{
		// Make a stab at it, but ignore the E_WARNINGs generated because we can't send headers.
		$temp = error_reporting(error_reporting() & !E_WARNING);
		loadSession();
		error_reporting($temp);
	}

	if (!isset($_SESSION['session_value']))
	{
		$_SESSION['session_var'] = substr(md5($smcFunc['random_int']() . session_id() . $smcFunc['random_int']()), 0, rand(7, 12));
		$_SESSION['session_value'] = md5(session_id() . $smcFunc['random_int']());
	}
	$sc = $_SESSION['session_value'];
}

// Get rid of $board and $topic... do stuff loadBoard would do.
unset($board, $topic);
$user_info['is_mod'] = false;
$context['user']['is_mod'] = &$user_info['is_mod'];
$context['linktree'] = array();

// Load the user and their cookie, as well as their settings.
loadUserSettings();

// Load the current user's permissions....
loadPermissions();

// Load the current or SSI theme. (just use $ssi_theme = id_theme;)
loadTheme(isset($ssi_theme) ? (int) $ssi_theme : 0);

// @todo: probably not the best place, but somewhere it should be set...
if (!headers_sent())
	header('content-type: text/html; charset=' . (empty($modSettings['global_character_set']) ? (empty($txt['lang_character_set']) ? 'ISO-8859-1' : $txt['lang_character_set']) : $modSettings['global_character_set']));

// Take care of any banning that needs to be done.
if (isset($_REQUEST['ssi_ban']) || (isset($ssi_ban) && $ssi_ban === true))
	is_not_banned();

// Do we allow guests in here?
if (empty($ssi_guest_access) && empty($modSettings['allow_guestAccess']) && $user_info['is_guest'] && basename($_SERVER['PHP_SELF']) != 'SSI.php')
{
	require_once($sourcedir . '/Subs-Auth.php');
	KickGuest();
	obExit(null, true);
}

// Load the stuff like the menu bar, etc.
if (isset($ssi_layers))
{
	$context['template_layers'] = $ssi_layers;
	template_header();
}
else
	setupThemeContext();

// Make sure they didn't muss around with the settings... but only if it's not cli.
if (isset($_SERVER['REMOTE_ADDR']) && !isset($_SERVER['is_cli']) && session_id() == '')
	trigger_error($txt['ssi_session_broken'], E_USER_NOTICE);

// Without visiting the forum this session variable might not be set on submit.
if (!isset($_SESSION['USER_AGENT']) && (!isset($_GET['ssi_function']) || $_GET['ssi_function'] !== 'pollVote'))
	$_SESSION['USER_AGENT'] = $_SERVER['HTTP_USER_AGENT'];

// Have the ability to easily add functions to SSI.
call_integration_hook('integrate_SSI');

// Ignore a call to ssi_* functions if we are not accessing SSI.php directly.
if (basename($_SERVER['PHP_SELF']) == 'SSI.php')
{
	// You shouldn't just access SSI.php directly by URL!!
	if (!isset($_GET['ssi_function']))
		die(sprintf($txt['ssi_not_direct'], $user_info['is_admin'] ? '\'' . addslashes(__FILE__) . '\'' : '\'SSI.php\''));
	// Call a function passed by GET.
	if (function_exists('ssi_' . $_GET['ssi_function']) && (!empty($modSettings['allow_guestAccess']) || !$user_info['is_guest']))
		call_user_func('ssi_' . $_GET['ssi_function']);
	exit;
}

// To avoid side effects later on.
unset($_GET['ssi_function']);

error_reporting($ssi_error_reporting);

return true;

/**
 * This shuts down the SSI and shows the footer.
 *
 * @return void
 */
function ssi_shutdown()
{
	if (!isset($_GET['ssi_function']) || $_GET['ssi_function'] != 'shutdown')
		template_footer();
}

/**
 * Show the SMF version.
 *
 * @param string $output_method If 'echo', displays the version, otherwise returns it
 * @return void|string Returns nothing if output_method is 'echo', otherwise returns the version
 */
function ssi_version($output_method = 'echo')
{
	if ($output_method == 'echo')
		echo SMF_VERSION;
	else
		return SMF_VERSION;
}

/**
 * Show the full SMF version string.
 *
 * @param string $output_method If 'echo', displays the full version string, otherwise returns it
 * @return void|string Returns nothing if output_method is 'echo', otherwise returns the version string
 */
function ssi_full_version($output_method = 'echo')
{
	if ($output_method == 'echo')
		echo SMF_FULL_VERSION;
	else
		return SMF_FULL_VERSION;
}

/**
 * Show the SMF software year.
 *
 * @param string $output_method If 'echo', displays the software year, otherwise returns it
 * @return void|string Returns nothing if output_method is 'echo', otherwise returns the software year
 */
function ssi_software_year($output_method = 'echo')
{
	if ($output_method == 'echo')
		echo SMF_SOFTWARE_YEAR;
	else
		return SMF_SOFTWARE_YEAR;
}

/**
 * Show the forum copyright. Only used in our ssi_examples files.
 *
 * @param string $output_method If 'echo', displays the forum copyright, otherwise returns it
 * @return void|string Returns nothing if output_method is 'echo', otherwise returns the copyright string
 */
function ssi_copyright($output_method = 'echo')
{
	global $forum_copyright, $scripturl;

	if ($output_method == 'echo')
		printf($forum_copyright, SMF_FULL_VERSION, SMF_SOFTWARE_YEAR, $scripturl);
	else
		return sprintf($forum_copyright, SMF_FULL_VERSION, SMF_SOFTWARE_YEAR, $scripturl);
}

/**
 * Display a welcome message, like: Hey, User, you have 0 messages, 0 are new.
 *
 * @param string $output_method The output method. If 'echo', will display everything. Otherwise returns an array of user info.
 * @return void|array Displays a welcome message or returns an array of user data depending on output_method.
 */
function ssi_welcome($output_method = 'echo')
{
	global $context, $txt, $scripturl;

	if ($output_method == 'echo')
	{
		if ($context['user']['is_guest'])
			echo sprintf($txt[$context['can_register'] ? 'welcome_guest_register' : 'welcome_guest'], $context['forum_name_html_safe'], $scripturl . '?action=login', 'return reqOverlayDiv(this.href, ' . JavaScriptEscape($txt['login']) . ');', $scripturl . '?action=signup');
		else
			echo $txt['hello_member'], ' <strong>', $context['user']['name'], '</strong>', allowedTo('pm_read') ? ', ' . (empty($context['user']['messages']) ? $txt['msg_alert_no_messages'] : (($context['user']['messages'] == 1 ? sprintf($txt['msg_alert_one_message'], $scripturl . '?action=pm') : sprintf($txt['msg_alert_many_message'], $scripturl . '?action=pm', $context['user']['messages'])) . ', ' . ($context['user']['unread_messages'] == 1 ? $txt['msg_alert_one_new'] : sprintf($txt['msg_alert_many_new'], $context['user']['unread_messages'])))) : '';
	}
	// Don't echo... then do what?!
	else
		return $context['user'];
}

/**
 * Display a menu bar, like is displayed at the top of the forum.
 *
 * @param string $output_method The output method. If 'echo', will display the menu, otherwise returns an array of menu data.
 * @return void|array Displays the menu or returns an array of menu data depending on output_method.
 */
function ssi_menubar($output_method = 'echo')
{
	global $context;

	if ($output_method == 'echo')
		template_menu();
	// What else could this do?
	else
		return $context['menu_buttons'];
}

/**
 * Show a logout link.
 *
 * @param string $redirect_to A URL to redirect the user to after they log out.
 * @param string $output_method The output method. If 'echo', shows a logout link, otherwise returns the HTML for it.
 * @return void|string Displays a logout link or returns its HTML depending on output_method.
 */
function ssi_logout($redirect_to = '', $output_method = 'echo')
{
	global $context, $txt, $scripturl;

	if ($redirect_to != '')
		$_SESSION['logout_url'] = $redirect_to;

	// Guests can't log out.
	if ($context['user']['is_guest'])
		return false;

	$link = '<a href="' . $scripturl . '?action=logout;' . $context['session_var'] . '=' . $context['session_id'] . '">' . $txt['logout'] . '</a>';

	if ($output_method == 'echo')
		echo $link;
	else
		return $link;
}

/**
 * Recent post list:   [board] Subject by Poster    Date
 *
 * @param int $num_recent How many recent posts to display
 * @param null|array $exclude_boards If set, doesn't show posts from the specified boards
 * @param null|array $include_boards If set, only includes posts from the specified boards
 * @param string $output_method The output method. If 'echo', displays the posts, otherwise returns an array of information about them.
 * @param bool $limit_body Whether or not to only show the first 384 characters of each post
 * @return void|array Displays a list of recent posts or returns an array of information about them depending on output_method.
 */
function ssi_recentPosts($num_recent = 8, $exclude_boards = null, $include_boards = null, $output_method = 'echo', $limit_body = true)
{
	global $modSettings, $context;

	// Excluding certain boards...
	if ($exclude_boards === null && !empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']))
		$exclude_boards = array($modSettings['recycle_board']);
	else
		$exclude_boards = empty($exclude_boards) ? array() : (is_array($exclude_boards) ? $exclude_boards : array($exclude_boards));

The condition is_array($exclude_boards) is always true.

	// What about including certain boards - note we do some protection here as pre-2.0 didn't have this parameter.
	if (is_array($include_boards) || (int) $include_boards === $include_boards)
	{
		$include_boards = is_array($include_boards) ? $include_boards : array($include_boards);

The condition is_array($include_boards) is always true.

	}
	elseif ($include_boards != null)

The condition $include_boards != null is always false.

	{
		$include_boards = array();
	}

	// Let's restrict the query boys (and girls)
	$query_where = '
		m.id_msg >= {int:min_message_id}
		' . (empty($exclude_boards) ? '' : '
		AND b.id_board NOT IN ({array_int:exclude_boards})') . '
		' . ($include_boards === null ? '' : '
		AND b.id_board IN ({array_int:include_boards})') . '
		AND {query_wanna_see_board}' . ($modSettings['postmod_active'] ? '
		AND m.approved = {int:is_approved}' : '');

	$query_where_params = array(
		'is_approved' => 1,
		'include_boards' => $include_boards === null ? '' : $include_boards,
		'exclude_boards' => empty($exclude_boards) ? '' : $exclude_boards,
		'min_message_id' => $modSettings['maxMsgID'] - (!empty($context['min_message_posts']) ? $context['min_message_posts'] : 25) * min($num_recent, 5),
	);

	// Past to this simpleton of a function...
	return ssi_queryPosts($query_where, $query_where_params, $num_recent, 'm.id_msg DESC', $output_method, $limit_body);
}

/**
 * Fetches one or more posts by ID.
 *
 * @param array $post_ids An array containing the IDs of the posts to show
 * @param bool $override_permissions Whether to ignore permissions. If true, will show posts even if the user doesn't have permission to see them.
 * @param string $output_method The output method. If 'echo', displays the posts, otherwise returns an array of info about them
 * @return void|array Displays the specified posts or returns an array of info about them, depending on output_method.
 */
function ssi_fetchPosts($post_ids = array(), $override_permissions = false, $output_method = 'echo')
{
	global $modSettings;

	if (empty($post_ids))
		return;

	// Allow the user to request more than one - why not?
	$post_ids = is_array($post_ids) ? $post_ids : array($post_ids);

The condition is_array($post_ids) is always true.

	// Restrict the posts required...
	$query_where = '
		m.id_msg IN ({array_int:message_list})' . ($override_permissions ? '' : '
			AND {query_wanna_see_board}') . ($modSettings['postmod_active'] ? '
			AND m.approved = {int:is_approved}' : '');
	$query_where_params = array(
		'message_list' => $post_ids,
		'is_approved' => 1,
	);

	// Then make the query and dump the data.
	return ssi_queryPosts($query_where, $query_where_params, '', 'm.id_msg DESC', $output_method, false, $override_permissions);

'' of type string is incompatible with the type integer expected by parameter $query_limit of ssi_queryPosts().

}

/**
 * This handles actually pulling post info. Called from other functions to eliminate duplication.
 *
 * @param string $query_where The WHERE clause for the query
 * @param array $query_where_params An array of parameters for the WHERE clause
 * @param int $query_limit The maximum number of rows to return
 * @param string $query_order The ORDER BY clause for the query
 * @param string $output_method The output method. If 'echo', displays the posts, otherwise returns an array of info about them.
 * @param bool $limit_body If true, will only show the first 384 characters of the post rather than all of it
 * @param bool|false $override_permissions Whether or not to ignore permissions. If true, will show all posts regardless of whether the user can actually see them
 * @return void|array Displays the posts or returns an array of info about them, depending on output_method
 */
function ssi_queryPosts($query_where = '', $query_where_params = array(), $query_limit = 10, $query_order = 'm.id_msg DESC', $output_method = 'echo', $limit_body = false, $override_permissions = false)
{
	global $scripturl, $txt, $user_info;
	global $modSettings, $smcFunc, $context;

	if (!empty($modSettings['enable_likes']))
		$context['can_like'] = allowedTo('likes_like');

	// Find all the posts. Newer ones will have higher IDs.
	$request = $smcFunc['db_query']('substring', '
		SELECT
			m.poster_time, m.subject, m.id_topic, m.id_member, m.id_msg, m.id_board, m.likes, b.name AS board_name,
			COALESCE(mem.real_name, m.poster_name) AS poster_name, ' . ($user_info['is_guest'] ? '1 AS is_read, 0 AS new_from' : '
			COALESCE(lt.id_msg, lmr.id_msg, 0) >= m.id_msg_modified AS is_read,
			COALESCE(lt.id_msg, lmr.id_msg, -1) + 1 AS new_from') . ', ' . ($limit_body ? 'SUBSTRING(m.body, 1, 384) AS body' : 'm.body') . ', m.smileys_enabled
		FROM {db_prefix}messages AS m
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = m.id_board)' . ($modSettings['postmod_active'] ? '
			INNER JOIN {db_prefix}topics AS t ON (t.id_topic = m.id_topic)' : '') . '
			LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = m.id_member)' . (!$user_info['is_guest'] ? '
			LEFT JOIN {db_prefix}log_topics AS lt ON (lt.id_topic = m.id_topic AND lt.id_member = {int:current_member})
			LEFT JOIN {db_prefix}log_mark_read AS lmr ON (lmr.id_board = m.id_board AND lmr.id_member = {int:current_member})' : '') . '
		WHERE 1=1 ' . ($override_permissions ? '' : '
			AND {query_wanna_see_board}') . ($modSettings['postmod_active'] ? '
			AND m.approved = {int:is_approved}
			AND t.approved = {int:is_approved}' : '') . '
		' . (empty($query_where) ? '' : 'AND ' . $query_where) . '
		ORDER BY ' . $query_order . '
		' . ($query_limit == '' ? '' : 'LIMIT ' . $query_limit),
		array_merge($query_where_params, array(
			'current_member' => $user_info['id'],
			'is_approved' => 1,
		))
	);
	$posts = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		$row['body'] = parse_bbc($row['body'], $row['smileys_enabled'], $row['id_msg']);

		// Censor it!
		censorText($row['subject']);
		censorText($row['body']);

		$preview = strip_tags(strtr($row['body'], array('<br>' => '&#10;')));

		// Build the array.
		$posts[$row['id_msg']] = array(
			'id' => $row['id_msg'],
			'board' => array(
				'id' => $row['id_board'],
				'name' => $row['board_name'],
				'href' => $scripturl . '?board=' . $row['id_board'] . '.0',
				'link' => '<a href="' . $scripturl . '?board=' . $row['id_board'] . '.0">' . $row['board_name'] . '</a>'
			),
			'topic' => $row['id_topic'],
			'poster' => array(
				'id' => $row['id_member'],
				'name' => $row['poster_name'],
				'href' => empty($row['id_member']) ? '' : $scripturl . '?action=profile;u=' . $row['id_member'],
				'link' => empty($row['id_member']) ? $row['poster_name'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['poster_name'] . '</a>'
			),
			'subject' => $row['subject'],
			'short_subject' => shorten_subject($row['subject'], 25),
			'preview' => $smcFunc['strlen']($preview) > 128 ? $smcFunc['substr']($preview, 0, 128) . '...' : $preview,
			'body' => $row['body'],
			'time' => timeformat($row['poster_time']),
			'timestamp' => forum_time(true, $row['poster_time']),
			'href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . ';topicseen#new',
			'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . '#msg' . $row['id_msg'] . '" rel="nofollow">' . $row['subject'] . '</a>',
			'new' => !empty($row['is_read']),
			'is_new' => empty($row['is_read']),
			'new_from' => $row['new_from'],
		);

		// Get the likes for each message.
		if (!empty($modSettings['enable_likes']))
			$posts[$row['id_msg']]['likes'] = array(
				'count' => $row['likes'],
				'you' => in_array($row['id_msg'], prepareLikesContext($row['id_topic'])),
				'can_like' => !$context['user']['is_guest'] && $row['id_member'] != $context['user']['id'] && !empty($context['can_like']),
			);
	}
	$smcFunc['db_free_result']($request);

	// If mods want to do something with this list of posts, let them do that now.
	call_integration_hook('integrate_ssi_queryPosts', array(&$posts));

	// Just return it.
	if ($output_method != 'echo' || empty($posts))
		return $posts;

	echo '
		<table style="border: none" class="ssi_table">';
	foreach ($posts as $post)
		echo '
			<tr>
				<td style="text-align: right; vertical-align: top; white-space: nowrap">
					[', $post['board']['link'], ']
				</td>
				<td style="vertical-align: top">
					<a href="', $post['href'], '">', $post['subject'], '</a>
					', $txt['by'], ' ', $post['poster']['link'], '
					', $post['is_new'] ? '<a href="' . $scripturl . '?topic=' . $post['topic'] . '.msg' . $post['new_from'] . ';topicseen#new" rel="nofollow" class="new_posts">' . $txt['new'] . '</a>' : '', '
				</td>
				<td style="text-align: right; white-space: nowrap">
					', $post['time'], '
				</td>
			</tr>';
	echo '
		</table>';
}

/**
 * Recent topic list:   [board] Subject by Poster   Date
 *
 * @param int $num_recent How many recent topics to show
 * @param null|array $exclude_boards If set, exclude topics from the specified board(s)
 * @param null|array $include_boards If set, only include topics from the specified board(s)
 * @param string $output_method The output method. If 'echo', displays a list of topics, otherwise returns an array of info about them
 * @return void|array Either displays a list of topics or returns an array of info about them, depending on output_method.
 */
function ssi_recentTopics($num_recent = 8, $exclude_boards = null, $include_boards = null, $output_method = 'echo')
{
	global $settings, $scripturl, $txt, $user_info;
	global $modSettings, $smcFunc, $context;

	if ($exclude_boards === null && !empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] > 0)
		$exclude_boards = array($modSettings['recycle_board']);
	else
		$exclude_boards = empty($exclude_boards) ? array() : (is_array($exclude_boards) ? $exclude_boards : array($exclude_boards));

The condition is_array($exclude_boards) is always true.

	// Only some boards?.
	if (is_array($include_boards) || (int) $include_boards === $include_boards)
	{
		$include_boards = is_array($include_boards) ? $include_boards : array($include_boards);

The condition is_array($include_boards) is always true.

	}
	elseif ($include_boards != null)

The condition $include_boards != null is always false.

	{
		$output_method = $include_boards;
		$include_boards = array();
	}

	$icon_sources = array();
	foreach ($context['stable_icons'] as $icon)
		$icon_sources[$icon] = 'images_url';

	// Find all the posts in distinct topics.  Newer ones will have higher IDs.
	$request = $smcFunc['db_query']('substring', '
		SELECT
			t.id_topic, b.id_board, b.name AS board_name
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}messages AS ml ON (ml.id_msg = t.id_last_msg)
			LEFT JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
		WHERE t.id_last_msg >= {int:min_message_id}' . (empty($exclude_boards) ? '' : '
			AND b.id_board NOT IN ({array_int:exclude_boards})') . '' . (empty($include_boards) ? '' : '
			AND b.id_board IN ({array_int:include_boards})') . '
			AND {query_wanna_see_board}' . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}
			AND ml.approved = {int:is_approved}' : '') . '
		ORDER BY t.id_last_msg DESC
		LIMIT ' . $num_recent,
		array(
			'include_boards' => empty($include_boards) ? '' : $include_boards,
			'exclude_boards' => empty($exclude_boards) ? '' : $exclude_boards,
			'min_message_id' => $modSettings['maxMsgID'] - (!empty($context['min_message_topics']) ? $context['min_message_topics'] : 35) * min($num_recent, 5),
			'is_approved' => 1,
		)
	);
	$topics = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$topics[$row['id_topic']] = $row;
	$smcFunc['db_free_result']($request);

	// Did we find anything? If not, bail.
	if (empty($topics))
		return array();

	$recycle_board = !empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']) ? (int) $modSettings['recycle_board'] : 0;

	// Find all the posts in distinct topics.  Newer ones will have higher IDs.
	$request = $smcFunc['db_query']('substring', '
		SELECT
			mf.poster_time, mf.subject, ml.id_topic, mf.id_member, ml.id_msg, t.num_replies, t.num_views, mg.online_color, t.id_last_msg,
			COALESCE(mem.real_name, mf.poster_name) AS poster_name, ' . ($user_info['is_guest'] ? '1 AS is_read, 0 AS new_from' : '
			COALESCE(lt.id_msg, lmr.id_msg, 0) >= ml.id_msg_modified AS is_read,
			COALESCE(lt.id_msg, lmr.id_msg, -1) + 1 AS new_from') . ', SUBSTRING(mf.body, 1, 384) AS body, mf.smileys_enabled, mf.icon
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}messages AS ml ON (ml.id_msg = t.id_last_msg)
			INNER JOIN {db_prefix}messages AS mf ON (mf.id_msg = t.id_last_msg)
			LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = mf.id_member)' . (!$user_info['is_guest'] ? '
			LEFT JOIN {db_prefix}log_topics AS lt ON (lt.id_topic = t.id_topic AND lt.id_member = {int:current_member})
			LEFT JOIN {db_prefix}log_mark_read AS lmr ON (lmr.id_board = t.id_board AND lmr.id_member = {int:current_member})' : '') . '
			LEFT JOIN {db_prefix}membergroups AS mg ON (mg.id_group = mem.id_group)
		WHERE t.id_topic IN ({array_int:topic_list})
		ORDER BY t.id_last_msg DESC',
		array(
			'current_member' => $user_info['id'],
			'topic_list' => array_keys($topics),
		)
	);
	$posts = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		$row['body'] = strip_tags(strtr(parse_bbc($row['body'], $row['smileys_enabled'], $row['id_msg']), array('<br>' => '&#10;')));
		if ($smcFunc['strlen']($row['body']) > 128)
			$row['body'] = $smcFunc['substr']($row['body'], 0, 128) . '...';

		// Censor the subject.
		censorText($row['subject']);
		censorText($row['body']);

		// Recycled icon
		if (!empty($recycle_board) && $topics[$row['id_topic']]['id_board'] == $recycle_board)
			$row['icon'] = 'recycled';

		if (!empty($modSettings['messageIconChecks_enable']) && !isset($icon_sources[$row['icon']]))
			$icon_sources[$row['icon']] = file_exists($settings['theme_dir'] . '/images/post/' . $row['icon'] . '.png') ? 'images_url' : 'default_images_url';
		elseif (!isset($icon_sources[$row['icon']]))
			$icon_sources[$row['icon']] = 'images_url';

		// Build the array.
		$posts[] = array(
			'board' => array(
				'id' => $topics[$row['id_topic']]['id_board'],
				'name' => $topics[$row['id_topic']]['board_name'],
				'href' => $scripturl . '?board=' . $topics[$row['id_topic']]['id_board'] . '.0',
				'link' => '<a href="' . $scripturl . '?board=' . $topics[$row['id_topic']]['id_board'] . '.0">' . $topics[$row['id_topic']]['board_name'] . '</a>',
			),
			'topic' => $row['id_topic'],
			'poster' => array(
				'id' => $row['id_member'],
				'name' => $row['poster_name'],
				'href' => empty($row['id_member']) ? '' : $scripturl . '?action=profile;u=' . $row['id_member'],
				'link' => empty($row['id_member']) ? $row['poster_name'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['poster_name'] . '</a>'
			),
			'subject' => $row['subject'],
			'replies' => $row['num_replies'],
			'views' => $row['num_views'],
			'short_subject' => shorten_subject($row['subject'], 25),
			'preview' => $row['body'],
			'time' => timeformat($row['poster_time']),
			'timestamp' => forum_time(true, $row['poster_time']),
			'href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . ';topicseen#new',
			'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . '#new" rel="nofollow">' . $row['subject'] . '</a>',
			// Retained for compatibility - is technically incorrect!
			'new' => !empty($row['is_read']),
			'is_new' => empty($row['is_read']),
			'new_from' => $row['new_from'],
			'icon' => '<img src="' . $settings[$icon_sources[$row['icon']]] . '/post/' . $row['icon'] . '.png" style="vertical-align:middle;" alt="' . $row['icon'] . '">',
		);
	}
	$smcFunc['db_free_result']($request);

	// If mods want to do somthing with this list of topics, let them do that now.
	call_integration_hook('integrate_ssi_recentTopics', array(&$posts));

	// Just return it.
	if ($output_method != 'echo' || empty($posts))
		return $posts;

	echo '
		<table style="border: none" class="ssi_table">';
	foreach ($posts as $post)
		echo '
			<tr>
				<td style="text-align: right; vertical-align: top; white-space: nowrap">
					[', $post['board']['link'], ']
				</td>
				<td style="vertical-align: top">
					<a href="', $post['href'], '">', $post['subject'], '</a>
					', $txt['by'], ' ', $post['poster']['link'], '
					', !$post['is_new'] ? '' : '<a href="' . $scripturl . '?topic=' . $post['topic'] . '.msg' . $post['new_from'] . ';topicseen#new" rel="nofollow" class="new_posts">' . $txt['new'] . '</a>', '
				</td>
				<td style="text-align: right; white-space: nowrap">
					', $post['time'], '
				</td>
			</tr>';
	echo '
		</table>';
}

/**
 * Shows a list of top posters
 *
 * @param int $topNumber How many top posters to list
 * @param string $output_method The output method. If 'echo', will display a list of users, otherwise returns an array of info about them.
 * @return void|array Either displays a list of users or returns an array of info about them, depending on output_method.
 */
function ssi_topPoster($topNumber = 1, $output_method = 'echo')
{
	global $scripturl, $smcFunc;

	// Find the latest poster.
	$request = $smcFunc['db_query']('', '
		SELECT id_member, real_name, posts
		FROM {db_prefix}members
		ORDER BY posts DESC
		LIMIT ' . $topNumber,
		array(
		)
	);
	$return = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$return[] = array(
			'id' => $row['id_member'],
			'name' => $row['real_name'],
			'href' => $scripturl . '?action=profile;u=' . $row['id_member'],
			'link' => '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['real_name'] . '</a>',
			'posts' => $row['posts']
		);
	$smcFunc['db_free_result']($request);

	// If mods want to do somthing with this list of members, let them do that now.
	call_integration_hook('integrate_ssi_topPoster', array(&$return));

	// Just return all the top posters.
	if ($output_method != 'echo')
		return $return;

	// Make a quick array to list the links in.
	$temp_array = array();
	foreach ($return as $member)
		$temp_array[] = $member['link'];

	echo implode(', ', $temp_array);
}

/**
 * Shows a list of top boards based on activity
 *
 * @param int $num_top How many boards to display
 * @param string $output_method The output method. If 'echo', displays a list of boards, otherwise returns an array of info about them.
 * @return void|array Displays a list of the top boards or returns an array of info about them, depending on output_method.
 */
function ssi_topBoards($num_top = 10, $output_method = 'echo')
{
	global $txt, $scripturl, $user_info, $modSettings, $smcFunc;

	// Find boards with lots of posts.
	$request = $smcFunc['db_query']('', '
		SELECT
			b.name, b.num_topics, b.num_posts, b.id_board,' . (!$user_info['is_guest'] ? ' 1 AS is_read' : '
			(COALESCE(lb.id_msg, 0) >= b.id_last_msg) AS is_read') . '
		FROM {db_prefix}boards AS b
			LEFT JOIN {db_prefix}log_boards AS lb ON (lb.id_board = b.id_board AND lb.id_member = {int:current_member})
		WHERE {query_wanna_see_board}' . (!empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']) ? '
			AND b.id_board != {int:recycle_board}' : '') . '
		ORDER BY b.num_posts DESC
		LIMIT ' . $num_top,
		array(
			'current_member' => $user_info['id'],
			'recycle_board' => !empty($modSettings['recycle_board']) ? (int) $modSettings['recycle_board'] : null,
		)
	);
	$boards = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$boards[] = array(
			'id' => $row['id_board'],
			'num_posts' => $row['num_posts'],
			'num_topics' => $row['num_topics'],
			'name' => $row['name'],
			'new' => empty($row['is_read']),
			'href' => $scripturl . '?board=' . $row['id_board'] . '.0',
			'link' => '<a href="' . $scripturl . '?board=' . $row['id_board'] . '.0">' . $row['name'] . '</a>'
		);
	$smcFunc['db_free_result']($request);

	// If mods want to do somthing with this list of boards, let them do that now.
	call_integration_hook('integrate_ssi_topBoards', array(&$boards));

	// If we shouldn't output or have nothing to output, just jump out.
	if ($output_method != 'echo' || empty($boards))
		return $boards;

	echo '
		<table class="ssi_table">
			<tr>
				<th style="text-align: left">', $txt['board'], '</th>
				<th style="text-align: left">', $txt['board_topics'], '</th>
				<th style="text-align: left">', $txt['posts'], '</th>
			</tr>';
	foreach ($boards as $sBoard)
		echo '
			<tr>
				<td>', $sBoard['link'], $sBoard['new'] ? ' <a href="' . $sBoard['href'] . '" class="new_posts">' . $txt['new'] . '</a>' : '', '</td>
				<td style="text-align: right">', comma_format($sBoard['num_topics']), '</td>
				<td style="text-align: right">', comma_format($sBoard['num_posts']), '</td>
			</tr>';
	echo '
		</table>';
}

// Shows the top topics.
/**
 * Shows a list of top topics based on views or replies
 *
 * @param string $type Can be either replies or views
 * @param int $num_topics How many topics to display
 * @param string $output_method The output method. If 'echo', displays a list of topics, otherwise returns an array of info about them.
 * @return void|array Either displays a list of topics or returns an array of info about them, depending on output_method.
 */
function ssi_topTopics($type = 'replies', $num_topics = 10, $output_method = 'echo')
{
	global $txt, $scripturl, $modSettings, $smcFunc;

	if ($modSettings['totalMessages'] > 100000)
	{
		// @todo Why don't we use {query(_wanna)_see_board}?
		$request = $smcFunc['db_query']('', '
			SELECT id_topic
			FROM {db_prefix}topics
			WHERE num_' . ($type != 'replies' ? 'views' : 'replies') . ' != 0' . ($modSettings['postmod_active'] ? '
				AND approved = {int:is_approved}' : '') . '
			ORDER BY num_' . ($type != 'replies' ? 'views' : 'replies') . ' DESC
			LIMIT {int:limit}',
			array(
				'is_approved' => 1,
				'limit' => $num_topics > 100 ? ($num_topics + ($num_topics / 2)) : 100,
			)
		);
		$topic_ids = array();
		while ($row = $smcFunc['db_fetch_assoc']($request))
			$topic_ids[] = $row['id_topic'];
		$smcFunc['db_free_result']($request);
	}
	else
		$topic_ids = array();

	$request = $smcFunc['db_query']('', '
		SELECT m.subject, m.id_topic, t.num_views, t.num_replies
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}messages AS m ON (m.id_msg = t.id_first_msg)
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
		WHERE {query_wanna_see_board}' . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}' : '') . (!empty($topic_ids) ? '
			AND t.id_topic IN ({array_int:topic_list})' : '') . (!empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']) ? '
			AND b.id_board != {int:recycle_board}' : '') . '
		ORDER BY t.num_' . ($type != 'replies' ? 'views' : 'replies') . ' DESC
		LIMIT {int:limit}',
		array(
			'topic_list' => $topic_ids,
			'is_approved' => 1,
			'recycle_board' => !empty($modSettings['recycle_board']) ? (int) $modSettings['recycle_board'] : null,
			'limit' => $num_topics,
		)
	);
	$topics = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		censorText($row['subject']);

		$topics[] = array(
			'id' => $row['id_topic'],
			'subject' => $row['subject'],
			'num_replies' => $row['num_replies'],
			'num_views' => $row['num_views'],
			'href' => $scripturl . '?topic=' . $row['id_topic'] . '.0',
			'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.0">' . $row['subject'] . '</a>',
		);
	}
	$smcFunc['db_free_result']($request);

	// If mods want to do somthing with this list of topics, let them do that now.
	call_integration_hook('integrate_ssi_topTopics', array(&$topics, $type));

	if ($output_method != 'echo' || empty($topics))
		return $topics;

	echo '
		<table class="ssi_table">
			<tr>
				<th style="text-align: left"></th>
				<th style="text-align: left">', $txt['views'], '</th>
				<th style="text-align: left">', $txt['replies'], '</th>
			</tr>';
	foreach ($topics as $sTopic)
		echo '
			<tr>
				<td style="text-align: left">
					', $sTopic['link'], '
				</td>
				<td style="text-align: right">', comma_format($sTopic['num_views']), '</td>
				<td style="text-align: right">', comma_format($sTopic['num_replies']), '</td>
			</tr>';
	echo '
		</table>';
}

/**
 * Top topics based on replies
 *
 * @param int $num_topics How many topics to show
 * @param string $output_method The output method. If 'echo', displays a list of topics, otherwise returns an array of info about them
 * @return void|array Either displays a list of top topics or returns an array of info about them, depending on output_method.
 */
function ssi_topTopicsReplies($num_topics = 10, $output_method = 'echo')
{
	return ssi_topTopics('replies', $num_topics, $output_method);
}

/**
 * Top topics based on views
 *
 * @param int $num_topics How many topics to show
 * @param string $output_method The output method. If 'echo', displays a list of topics, otherwise returns an array of info about them
 * @return void|array Either displays a list of top topics or returns an array of info about them, depending on output_method.
 */
function ssi_topTopicsViews($num_topics = 10, $output_method = 'echo')
{
	return ssi_topTopics('views', $num_topics, $output_method);
}

/**
 * Show a link to the latest member: Please welcome, Someone, our latest member.
 *
 * @param string $output_method The output method. If 'echo', returns a string with a link to the latest member's profile, otherwise returns an array of info about them.
 * @return void|array Displays a "welcome" message for the latest member or returns an array of info about them, depending on output_method.
 */
function ssi_latestMember($output_method = 'echo')
{
	global $txt, $context;

	if ($output_method == 'echo')
		echo '
	', sprintf($txt['welcome_newest_member'], $context['common_stats']['latest_member']['link']), '<br>';
	else
		return $context['common_stats']['latest_member'];
}

/**
 * Fetches a random member.
 *
 * @param string $random_type If 'day', only fetches a new random member once a day.
 * @param string $output_method The output method. If 'echo', displays a link to the member's profile, otherwise returns an array of info about them.
 * @return void|array Displays a link to a random member's profile or returns an array of info about them depending on output_method.
 */
function ssi_randomMember($random_type = '', $output_method = 'echo')
{
	global $modSettings;

	// If we're looking for something to stay the same each day then seed the generator.
	if ($random_type == 'day')
	{
		// Set the seed to change only once per day.
		mt_srand(floor(time() / 86400));

floor(time() / 86400) of type double is incompatible with the type integer expected by parameter $seed of mt_srand().

	}

	// Get the lowest ID we're interested in.
	$member_id = mt_rand(1, $modSettings['latestMember']);

	$where_query = '
		id_member >= {int:selected_member}
		AND is_activated = {int:is_activated}';

	$query_where_params = array(
		'selected_member' => $member_id,
		'is_activated' => 1,
	);

	$result = ssi_queryMembers($where_query, $query_where_params, 1, 'id_member ASC', $output_method);

	// If we got nothing do the reverse - in case of unactivated members.
	if (empty($result))
	{
		$where_query = '
			id_member <= {int:selected_member}
			AND is_activated = {int:is_activated}';

		$query_where_params = array(
			'selected_member' => $member_id,
			'is_activated' => 1,
		);

		$result = ssi_queryMembers($where_query, $query_where_params, 1, 'id_member DESC', $output_method);
	}

	// Just to be sure put the random generator back to something... random.
	if ($random_type != '')
		mt_srand(time());

	return $result;
}

/**
 * Fetch specific members
 *
 * @param array $member_ids The IDs of the members to fetch
 * @param string $output_method The output method. If 'echo', displays a list of links to the members' profiles, otherwise returns an array of info about them.
 * @return void|array Displays links to the specified members' profiles or returns an array of info about them, depending on output_method.
 */
function ssi_fetchMember($member_ids = array(), $output_method = 'echo')
{
	if (empty($member_ids))
		return;

	// Can have more than one member if you really want...
	$member_ids = is_array($member_ids) ? $member_ids : array($member_ids);

The condition is_array($member_ids) is always true.

	// Restrict it right!
	$query_where = '
		id_member IN ({array_int:member_list})';

	$query_where_params = array(
		'member_list' => $member_ids,
	);

	// Then make the query and dump the data.
	return ssi_queryMembers($query_where, $query_where_params, '', 'id_member', $output_method);
}

/**
 * Get al members in the specified group
 *
 * @param int $group_id The ID of the group to get members from
 * @param string $output_method The output method. If 'echo', returns a list of group members, otherwise returns an array of info about them.
 * @return void|array Displays a list of group members or returns an array of info about them, depending on output_method.
 */
function ssi_fetchGroupMembers($group_id = null, $output_method = 'echo')
{
	if ($group_id === null)
		return;

	$query_where = '
		id_group = {int:id_group}
		OR id_post_group = {int:id_group}
		OR FIND_IN_SET({int:id_group}, additional_groups) != 0';

	$query_where_params = array(
		'id_group' => $group_id,
	);

	return ssi_queryMembers($query_where, $query_where_params, '', 'real_name', $output_method);
}

/**
 * Pulls info about members based on the specified parameters. Used by other functions to eliminate duplication.
 *
 * @param string $query_where The info for the WHERE clause of the query
 * @param array $query_where_params The parameters for the WHERE clause
 * @param string|int $query_limit The number of rows to return or an empty string to return all
 * @param string $query_order The info for the ORDER BY clause of the query
 * @param string $output_method The output method. If 'echo', displays a list of members, otherwise returns an array of info about them
 * @return void|array Displays a list of members or returns an array of info about them, depending on output_method.
 */
function ssi_queryMembers($query_where = null, $query_where_params = array(), $query_limit = '', $query_order = 'id_member DESC', $output_method = 'echo')
{
	global $smcFunc, $memberContext;

	if ($query_where === null)
		return;

	// Fetch the members in question.
	$request = $smcFunc['db_query']('', '
		SELECT id_member
		FROM {db_prefix}members
		WHERE ' . $query_where . '
		ORDER BY ' . $query_order . '
		' . ($query_limit == '' ? '' : 'LIMIT ' . $query_limit),
		array_merge($query_where_params, array(
		))
	);
	$members = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$members[] = $row['id_member'];
	$smcFunc['db_free_result']($request);

	if (empty($members))
		return array();

	// If mods want to do somthing with this list of members, let them do that now.
	call_integration_hook('integrate_ssi_queryMembers', array(&$members));

	// Load the members.
	loadMemberData($members);

	// Draw the table!
	if ($output_method == 'echo')
		echo '
		<table style="border: none" class="ssi_table">';

	$query_members = array();
	foreach ($members as $member)
	{
		// Load their context data.
		if (!loadMemberContext($member))
			continue;

		// Store this member's information.
		$query_members[$member] = $memberContext[$member];

		// Only do something if we're echo'ing.
		if ($output_method == 'echo')
			echo '
			<tr>
				<td style="text-align: right; vertical-align: top; white-space: nowrap">
					', $query_members[$member]['link'], '
					<br>', $query_members[$member]['blurb'], '
					<br>', $query_members[$member]['avatar']['image'], '
				</td>
			</tr>';
	}

	// End the table if appropriate.
	if ($output_method == 'echo')
		echo '
		</table>';

	// Send back the data.
	return $query_members;
}

/**
 * Show some basic stats:   Total This: XXXX, etc.
 *
 * @param string $output_method The output method. If 'echo', displays the stats, otherwise returns an array of info about them
 * @return void|array Doesn't return anything if the user can't view stats. Otherwise either displays the stats or returns an array of info about them, depending on output_method.
 */
function ssi_boardStats($output_method = 'echo')
{
	global $txt, $scripturl, $modSettings, $smcFunc;

	if (!allowedTo('view_stats'))
		return;

	$totals = array(
		'members' => $modSettings['totalMembers'],
		'posts' => $modSettings['totalMessages'],
		'topics' => $modSettings['totalTopics']
	);

	$result = $smcFunc['db_query']('', '
		SELECT COUNT(*)
		FROM {db_prefix}boards',
		array(
		)
	);
	list ($totals['boards']) = $smcFunc['db_fetch_row']($result);
	$smcFunc['db_free_result']($result);

	$result = $smcFunc['db_query']('', '
		SELECT COUNT(*)
		FROM {db_prefix}categories',
		array(
		)
	);
	list ($totals['categories']) = $smcFunc['db_fetch_row']($result);
	$smcFunc['db_free_result']($result);

	// If mods want to do somthing with the board stats, let them do that now.
	call_integration_hook('integrate_ssi_boardStats', array(&$totals));

	if ($output_method != 'echo')
		return $totals;

	echo '
		', $txt['total_members'], ': <a href="', $scripturl . '?action=mlist">', comma_format($totals['members']), '</a><br>
		', $txt['total_posts'], ': ', comma_format($totals['posts']), '<br>
		', $txt['total_topics'], ': ', comma_format($totals['topics']), ' <br>
		', $txt['total_cats'], ': ', comma_format($totals['categories']), '<br>
		', $txt['total_boards'], ': ', comma_format($totals['boards']);
}

/**
 * Shows a list of online users:  YY Guests, ZZ Users and then a list...
 *
 * @param string $output_method The output method. If 'echo', displays a list, otherwise returns an array of info about the online users.
 * @return void|array Either displays a list of online users or returns an array of info about them, depending on output_method.
 */
function ssi_whosOnline($output_method = 'echo')
{
	global $user_info, $txt, $sourcedir, $settings;

	require_once($sourcedir . '/Subs-MembersOnline.php');
	$membersOnlineOptions = array(
		'show_hidden' => allowedTo('moderate_forum'),
	);
	$return = getMembersOnlineStats($membersOnlineOptions);

	// If mods want to do somthing with the list of who is online, let them do that now.
	call_integration_hook('integrate_ssi_whosOnline', array(&$return));

	// Add some redundancy for backwards compatibility reasons.
	if ($output_method != 'echo')
		return $return + array(
			'users' => $return['users_online'],
			'guests' => $return['num_guests'],
			'hidden' => $return['num_users_hidden'],
			'buddies' => $return['num_buddies'],
			'num_users' => $return['num_users_online'],
			'total_users' => $return['num_users_online'] + $return['num_guests'],
		);

	echo '
		', comma_format($return['num_guests']), ' ', $return['num_guests'] == 1 ? $txt['guest'] : $txt['guests'], ', ', comma_format($return['num_users_online']), ' ', $return['num_users_online'] == 1 ? $txt['user'] : $txt['users'];

	$bracketList = array();
	if (!empty($user_info['buddies']))
		$bracketList[] = comma_format($return['num_buddies']) . ' ' . ($return['num_buddies'] == 1 ? $txt['buddy'] : $txt['buddies']);
	if (!empty($return['num_spiders']))
		$bracketList[] = comma_format($return['num_spiders']) . ' ' . ($return['num_spiders'] == 1 ? $txt['spider'] : $txt['spiders']);
	if (!empty($return['num_users_hidden']))
		$bracketList[] = comma_format($return['num_users_hidden']) . ' ' . $txt['hidden'];

	if (!empty($bracketList))
		echo ' (' . implode(', ', $bracketList) . ')';

	echo '<br>
			', implode(', ', $return['list_users_online']);

	// Showing membergroups?
	if (!empty($settings['show_group_key']) && !empty($return['online_groups']))
	{
		$membergroups = cache_quick_get('membergroup_list', 'Subs-Membergroups.php', 'cache_getMembergroupList', array());

		$groups = array();
		foreach ($return['online_groups'] as $group)
		{
			if (isset($membergroups[$group['id']]))
				$groups[] = $membergroups[$group['id']];
		}

		echo '<br>
			[' . implode(']&nbsp;&nbsp;[', $groups) . ']';
	}
}

/**
 * Just like whosOnline except it also logs the online presence.
 *
 * @param string $output_method The output method. If 'echo', displays a list, otherwise returns an array of info about the online users.
 * @return void|array Either displays a list of online users or returns an aray of info about them, depending on output_method.
 */
function ssi_logOnline($output_method = 'echo')
{
	writeLog();

	if ($output_method != 'echo')
		return ssi_whosOnline($output_method);
	else
		ssi_whosOnline($output_method);
}

// Shows a login box.
/**
 * Shows a login box
 *
 * @param string $redirect_to The URL to redirect the user to after they login
 * @param string $output_method The output method. If 'echo' and the user is a guest, displays a login box, otherwise returns whether the user is a guest
 * @return void|bool Either displays a login box or returns whether the user is a guest, depending on whether the user is logged in and output_method.
 */
function ssi_login($redirect_to = '', $output_method = 'echo')
{
	global $scripturl, $txt, $user_info, $context;

	if ($redirect_to != '')
		$_SESSION['login_url'] = $redirect_to;

	if ($output_method != 'echo' || !$user_info['is_guest'])
		return $user_info['is_guest'];

	// Create a login token
	createToken('login');

	echo '
		<form action="', $scripturl, '?action=login2" method="post" accept-charset="', $context['character_set'], '">
			<table style="border: none" class="ssi_table">
				<tr>
					<td style="text-align: right; border-spacing: 1"><label for="user">', $txt['username'], ':</label>&nbsp;</td>
					<td><input type="text" id="user" name="user" size="9" value="', $user_info['username'], '"></td>
				</tr><tr>
					<td style="text-align: right; border-spacing: 1"><label for="passwrd">', $txt['password'], ':</label>&nbsp;</td>
					<td><input type="password" name="passwrd" id="passwrd" size="9"></td>
				</tr>
				<tr>
					<td>
						<input type="hidden" name="cookielength" value="-1">
						<input type="hidden" name="', $context['session_var'], '" value="', $context['session_id'], '" />
						<input type="hidden" name="', $context['login_token_var'], '" value="', $context['login_token'], '">
					</td>
					<td><input type="submit" value="', $txt['login'], '" class="button"></td>
				</tr>
			</table>
		</form>';

}

/**
 * Show the top poll based on votes
 *
 * @param string $output_method The output method. If 'echo', displays the poll, otherwise returns an array of info about it
 * @return void|array Either shows the top poll or returns an array of info about it, depending on output_method.
 */
function ssi_topPoll($output_method = 'echo')
{
	// Just use recentPoll, no need to duplicate code...
	return ssi_recentPoll(true, $output_method);
}

// Show the most recently posted poll.
/**
 * Shows the most recent poll
 *
 * @param bool $topPollInstead Whether to show the top poll (based on votes) instead of the most recent one
 * @param string $output_method The output method. If 'echo', displays the poll, otherwise returns an array of info about it.
 * @return void|array Either shows the poll or returns an array of info about it, depending on output_method.
 */
function ssi_recentPoll($topPollInstead = false, $output_method = 'echo')
{
	global $txt, $boardurl, $user_info, $context, $smcFunc, $modSettings;

	$boardsAllowed = array_intersect(boardsAllowedTo('poll_view'), boardsAllowedTo('poll_vote'));

	if (empty($boardsAllowed))
		return array();

	$request = $smcFunc['db_query']('', '
		SELECT p.id_poll, p.question, t.id_topic, p.max_votes, p.guest_vote, p.hide_results, p.expire_time
		FROM {db_prefix}polls AS p
			INNER JOIN {db_prefix}topics AS t ON (t.id_poll = p.id_poll' . ($modSettings['postmod_active'] ? ' AND t.approved = {int:is_approved}' : '') . ')
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)' . ($topPollInstead ? '
			INNER JOIN {db_prefix}poll_choices AS pc ON (pc.id_poll = p.id_poll)' : '') . '
			LEFT JOIN {db_prefix}log_polls AS lp ON (lp.id_poll = p.id_poll AND lp.id_member > {int:no_member} AND lp.id_member = {int:current_member})
		WHERE p.voting_locked = {int:voting_opened}
			AND (p.expire_time = {int:no_expiration} OR {int:current_time} < p.expire_time)
			AND ' . ($user_info['is_guest'] ? 'p.guest_vote = {int:guest_vote_allowed}' : 'lp.id_choice IS NULL') . '
			AND {query_wanna_see_board}' . (!in_array(0, $boardsAllowed) ? '
			AND b.id_board IN ({array_int:boards_allowed_list})' : '') . (!empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']) ? '
			AND b.id_board != {int:recycle_board}' : '') . '
		ORDER BY ' . ($topPollInstead ? 'pc.votes' : 'p.id_poll') . ' DESC
		LIMIT 1',
		array(
			'current_member' => $user_info['id'],
			'boards_allowed_list' => $boardsAllowed,
			'is_approved' => 1,
			'guest_vote_allowed' => 1,
			'no_member' => 0,
			'voting_opened' => 0,
			'no_expiration' => 0,
			'current_time' => time(),
			'recycle_board' => !empty($modSettings['recycle_board']) ? (int) $modSettings['recycle_board'] : null,
		)
	);
	$row = $smcFunc['db_fetch_assoc']($request);
	$smcFunc['db_free_result']($request);

	// This user has voted on all the polls.
	if (empty($row) || !is_array($row))
		return array();

	// If this is a guest who's voted we'll through ourselves to show poll to show the results.
	if ($user_info['is_guest'] && (!$row['guest_vote'] || (isset($_COOKIE['guest_poll_vote']) && in_array($row['id_poll'], explode(',', $_COOKIE['guest_poll_vote'])))))
		return ssi_showPoll($row['id_topic'], $output_method);

	$request = $smcFunc['db_query']('', '
		SELECT COUNT(DISTINCT id_member)
		FROM {db_prefix}log_polls
		WHERE id_poll = {int:current_poll}',
		array(
			'current_poll' => $row['id_poll'],
		)
	);
	list ($total) = $smcFunc['db_fetch_row']($request);
	$smcFunc['db_free_result']($request);

	$request = $smcFunc['db_query']('', '
		SELECT id_choice, label, votes
		FROM {db_prefix}poll_choices
		WHERE id_poll = {int:current_poll}',
		array(
			'current_poll' => $row['id_poll'],
		)
	);
	$sOptions = array();
	while ($rowChoice = $smcFunc['db_fetch_assoc']($request))
	{
		censorText($rowChoice['label']);

		$sOptions[$rowChoice['id_choice']] = array($rowChoice['label'], $rowChoice['votes']);
	}
	$smcFunc['db_free_result']($request);

	// Can they view it?
	$is_expired = !empty($row['expire_time']) && $row['expire_time'] < time();
	$allow_view_results = allowedTo('moderate_board') || $row['hide_results'] == 0 || $is_expired;

	$return = array(
		'id' => $row['id_poll'],
		'image' => 'poll',
		'question' => $row['question'],
		'total_votes' => $total,
		'is_locked' => false,
		'topic' => $row['id_topic'],
		'allow_view_results' => $allow_view_results,
		'options' => array()
	);

	// Calculate the percentages and bar lengths...
	$divisor = $return['total_votes'] == 0 ? 1 : $return['total_votes'];
	foreach ($sOptions as $i => $option)
	{
		$bar = floor(($option[1] * 100) / $divisor);
		$return['options'][$i] = array(
			'id' => 'options-' . ($topPollInstead ? 'top-' : 'recent-') . $i,
			'percent' => $bar,
			'votes' => $option[1],
			'option' => parse_bbc($option[0]),
			'vote_button' => '<input type="' . ($row['max_votes'] > 1 ? 'checkbox' : 'radio') . '" name="options[]" id="options-' . ($topPollInstead ? 'top-' : 'recent-') . $i . '" value="' . $i . '">'
		);
	}

	$return['allowed_warning'] = $row['max_votes'] > 1 ? sprintf($txt['poll_options_limit'], min(count($sOptions), $row['max_votes'])) : '';

	// If mods want to do somthing with this list of polls, let them do that now.
	call_integration_hook('integrate_ssi_recentPoll', array(&$return, $topPollInstead));

	if ($output_method != 'echo')
		return $return;

	if ($allow_view_results)
	{
		echo '
		<form class="ssi_poll" action="', $boardurl, '/SSI.php?ssi_function=pollVote" method="post" accept-charset="', $context['character_set'], '">
			<strong>', $return['question'], '</strong><br>
			', !empty($return['allowed_warning']) ? $return['allowed_warning'] . '<br>' : '';

		foreach ($return['options'] as $option)
			echo '
			<label for="', $option['id'], '">', $option['vote_button'], ' ', $option['option'], '</label><br>';

		echo '
			<input type="submit" value="', $txt['poll_vote'], '" class="button">
			<input type="hidden" name="poll" value="', $return['id'], '">
			<input type="hidden" name="', $context['session_var'], '" value="', $context['session_id'], '">
		</form>';
	}
	else
		echo $txt['poll_cannot_see'];
}

/**
 * Shows the poll from the specified topic
 *
 * @param null|int $topic The topic to show the poll from. If null, $_REQUEST['ssi_topic'] will be used instead.
 * @param string $output_method The output method. If 'echo', displays the poll, otherwise returns an array of info about it.
 * @return void|array Either displays the poll or returns an array of info about it, depending on output_method.
 */
function ssi_showPoll($topic = null, $output_method = 'echo')
{
	global $txt, $boardurl, $user_info, $context, $smcFunc, $modSettings;

	$boardsAllowed = boardsAllowedTo('poll_view');

	if (empty($boardsAllowed))
		return array();

	if ($topic === null && isset($_REQUEST['ssi_topic']))
		$topic = (int) $_REQUEST['ssi_topic'];
	else
		$topic = (int) $topic;

	$request = $smcFunc['db_query']('', '
		SELECT
			p.id_poll, p.question, p.voting_locked, p.hide_results, p.expire_time, p.max_votes, p.guest_vote, b.id_board
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}polls AS p ON (p.id_poll = t.id_poll)
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
		WHERE t.id_topic = {int:current_topic}
			AND {query_see_board}' . (!in_array(0, $boardsAllowed) ? '
			AND b.id_board IN ({array_int:boards_allowed_see})' : '') . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}' : '') . '
		LIMIT 1',
		array(
			'current_topic' => $topic,
			'boards_allowed_see' => $boardsAllowed,
			'is_approved' => 1,
		)
	);

	// Either this topic has no poll, or the user cannot view it.
	if ($smcFunc['db_num_rows']($request) == 0)
		return array();

	$row = $smcFunc['db_fetch_assoc']($request);
	$smcFunc['db_free_result']($request);

	// Check if they can vote.
	$already_voted = false;
	if (!empty($row['expire_time']) && $row['expire_time'] < time())
		$allow_vote = false;
	elseif ($user_info['is_guest'])
	{
		// There's a difference between "allowed to vote" and "already voted"...
		$allow_vote = $row['guest_vote'];

		// Did you already vote?
		if (isset($_COOKIE['guest_poll_vote']) && in_array($row['id_poll'], explode(',', $_COOKIE['guest_poll_vote'])))
		{
			$already_voted = true;
		}
	}
	elseif (!empty($row['voting_locked']) || !allowedTo('poll_vote', $row['id_board']))
		$allow_vote = false;
	else
	{
		$request = $smcFunc['db_query']('', '
			SELECT id_member
			FROM {db_prefix}log_polls
			WHERE id_poll = {int:current_poll}
				AND id_member = {int:current_member}
			LIMIT 1',
			array(
				'current_member' => $user_info['id'],
				'current_poll' => $row['id_poll'],
			)
		);
		$allow_vote = $smcFunc['db_num_rows']($request) == 0;
		$already_voted = $allow_vote;
		$smcFunc['db_free_result']($request);
	}

	// Can they view?
	$is_expired = !empty($row['expire_time']) && $row['expire_time'] < time();
	$allow_view_results = allowedTo('moderate_board') || $row['hide_results'] == 0 || ($row['hide_results'] == 1 && $already_voted) || $is_expired;

	$request = $smcFunc['db_query']('', '
		SELECT COUNT(DISTINCT id_member)
		FROM {db_prefix}log_polls
		WHERE id_poll = {int:current_poll}',
		array(
			'current_poll' => $row['id_poll'],
		)
	);
	list ($total) = $smcFunc['db_fetch_row']($request);
	$smcFunc['db_free_result']($request);

	$request = $smcFunc['db_query']('', '
		SELECT id_choice, label, votes
		FROM {db_prefix}poll_choices
		WHERE id_poll = {int:current_poll}',
		array(
			'current_poll' => $row['id_poll'],
		)
	);
	$sOptions = array();
	$total_votes = 0;
	while ($rowChoice = $smcFunc['db_fetch_assoc']($request))
	{
		censorText($rowChoice['label']);

		$sOptions[$rowChoice['id_choice']] = array($rowChoice['label'], $rowChoice['votes']);
		$total_votes += $rowChoice['votes'];
	}
	$smcFunc['db_free_result']($request);

	$return = array(
		'id' => $row['id_poll'],
		'image' => empty($row['voting_locked']) ? 'poll' : 'locked_poll',
		'question' => $row['question'],
		'total_votes' => $total,
		'is_locked' => !empty($row['voting_locked']),
		'allow_vote' => $allow_vote,
		'allow_view_results' => $allow_view_results,
		'topic' => $topic
	);

	// Calculate the percentages and bar lengths...
	$divisor = $total_votes == 0 ? 1 : $total_votes;

The condition $total_votes == 0 is always true.

	foreach ($sOptions as $i => $option)
	{
		$bar = floor(($option[1] * 100) / $divisor);
		$return['options'][$i] = array(
			'id' => 'options-' . $i,
			'percent' => $bar,
			'votes' => $option[1],
			'option' => parse_bbc($option[0]),
			'vote_button' => '<input type="' . ($row['max_votes'] > 1 ? 'checkbox' : 'radio') . '" name="options[]" id="options-' . $i . '" value="' . $i . '">'
		);
	}

	$return['allowed_warning'] = $row['max_votes'] > 1 ? sprintf($txt['poll_options_limit'], min(count($sOptions), $row['max_votes'])) : '';

	// If mods want to do somthing with this poll, let them do that now.
	call_integration_hook('integrate_ssi_showPoll', array(&$return));

	if ($output_method != 'echo')
		return $return;

	if ($return['allow_vote'])
	{
		echo '
			<form class="ssi_poll" action="', $boardurl, '/SSI.php?ssi_function=pollVote" method="post" accept-charset="', $context['character_set'], '">
				<strong>', $return['question'], '</strong><br>
				', !empty($return['allowed_warning']) ? $return['allowed_warning'] . '<br>' : '';

		foreach ($return['options'] as $option)
			echo '
				<label for="', $option['id'], '">', $option['vote_button'], ' ', $option['option'], '</label><br>';

		echo '
				<input type="submit" value="', $txt['poll_vote'], '" class="button">
				<input type="hidden" name="poll" value="', $return['id'], '">
				<input type="hidden" name="', $context['session_var'], '" value="', $context['session_id'], '">
			</form>';
	}
	else
	{
		echo '
			<div class="ssi_poll">
				<strong>', $return['question'], '</strong>
				<dl>';

		foreach ($return['options'] as $option)
		{
			echo '
					<dt>', $option['option'], '</dt>
					<dd>';

			if ($return['allow_view_results'])
			{
				echo '
						<div class="ssi_poll_bar" style="border: 1px solid #666; height: 1em">
							<div class="ssi_poll_bar_fill" style="background: #ccf; height: 1em; width: ', $option['percent'], '%;">
							</div>
						</div>
						', $option['votes'], ' (', $option['percent'], '%)';
			}

			echo '
					</dd>';
		}

		echo '
				</dl>', ($return['allow_view_results'] ? '
				<strong>' . $txt['poll_total_voters'] . ': ' . $return['total_votes'] . '</strong>' : ''), '
			</div>';
	}
}

/**
 * Handles voting in a poll (done automatically)
 */
function ssi_pollVote()
{
	global $context, $db_prefix, $user_info, $sc, $smcFunc, $sourcedir, $modSettings;

	if (!isset($_POST[$context['session_var']]) || $_POST[$context['session_var']] != $sc || empty($_POST['options']) || !isset($_POST['poll']))
	{
		echo '<!DOCTYPE html>
<html>
<head>
	<script>
		history.go(-1);
	</script>
</head>
<body>&laquo;</body>
</html>';
		return;
	}

	// This can cause weird errors! (ie. copyright missing.)
	checkSession();

	$_POST['poll'] = (int) $_POST['poll'];

	// Check if they have already voted, or voting is locked.
	$request = $smcFunc['db_query']('', '
		SELECT
			p.id_poll, p.voting_locked, p.expire_time, p.max_votes, p.guest_vote,
			t.id_topic,
			COALESCE(lp.id_choice, -1) AS selected
		FROM {db_prefix}polls AS p
			INNER JOIN {db_prefix}topics AS t ON (t.id_poll = {int:current_poll})
			INNER JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
			LEFT JOIN {db_prefix}log_polls AS lp ON (lp.id_poll = p.id_poll AND lp.id_member = {int:current_member})
		WHERE p.id_poll = {int:current_poll}
			AND {query_see_board}' . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}' : '') . '
		LIMIT 1',
		array(
			'current_member' => $user_info['id'],
			'current_poll' => $_POST['poll'],
			'is_approved' => 1,
		)
	);
	if ($smcFunc['db_num_rows']($request) == 0)
		die;

Using exit here is not recommended.

	$row = $smcFunc['db_fetch_assoc']($request);
	$smcFunc['db_free_result']($request);

	if (!empty($row['voting_locked']) || ($row['selected'] != -1 && !$user_info['is_guest']) || (!empty($row['expire_time']) && time() > $row['expire_time']))
		redirectexit('topic=' . $row['id_topic'] . '.0');

	// Too many options checked?
	if (count($_REQUEST['options']) > $row['max_votes'])
		redirectexit('topic=' . $row['id_topic'] . '.0');

	// It's a guest who has already voted?
	if ($user_info['is_guest'])
	{
		// Guest voting disabled?
		if (!$row['guest_vote'])
			redirectexit('topic=' . $row['id_topic'] . '.0');
		// Already voted?
		elseif (isset($_COOKIE['guest_poll_vote']) && in_array($row['id_poll'], explode(',', $_COOKIE['guest_poll_vote'])))
			redirectexit('topic=' . $row['id_topic'] . '.0');
	}

	$sOptions = array();
	$inserts = array();
	foreach ($_REQUEST['options'] as $id)
	{
		$id = (int) $id;

		$sOptions[] = $id;
		$inserts[] = array($_POST['poll'], $user_info['id'], $id);
	}

	// Add their vote in to the tally.
	$smcFunc['db_insert']('insert',
		$db_prefix . 'log_polls',
		array('id_poll' => 'int', 'id_member' => 'int', 'id_choice' => 'int'),
		$inserts,
		array('id_poll', 'id_member', 'id_choice')
	);
	$smcFunc['db_query']('', '
		UPDATE {db_prefix}poll_choices
		SET votes = votes + 1
		WHERE id_poll = {int:current_poll}
			AND id_choice IN ({array_int:option_list})',
		array(
			'option_list' => $sOptions,
			'current_poll' => $_POST['poll'],
		)
	);

	// Track the vote if a guest.
	if ($user_info['is_guest'])
	{
		$_COOKIE['guest_poll_vote'] = !empty($_COOKIE['guest_poll_vote']) ? ($_COOKIE['guest_poll_vote'] . ',' . $row['id_poll']) : $row['id_poll'];

		require_once($sourcedir . '/Subs-Auth.php');
		$cookie_url = url_parts(!empty($modSettings['localCookies']), !empty($modSettings['globalCookies']));
		smf_setcookie('guest_poll_vote', $_COOKIE['guest_poll_vote'], time() + 2500000, $cookie_url[1], $cookie_url[0], false, false);
	}

	redirectexit('topic=' . $row['id_topic'] . '.0');
}

// Show a search box.
/**
 * Shows a search box
 *
 * @param string $output_method The output method. If 'echo', displays a search box, otherwise returns the URL of the search page.
 * @return void|string Displays a search box or returns the URL to the search page depending on output_method. If you don't have permission to search, the function won't return anything.
 */
function ssi_quickSearch($output_method = 'echo')
{
	global $scripturl, $txt, $context;

	if (!allowedTo('search_posts'))
		return;

	if ($output_method != 'echo')
		return $scripturl . '?action=search';

	echo '
		<form action="', $scripturl, '?action=search2" method="post" accept-charset="', $context['character_set'], '">
			<input type="hidden" name="advanced" value="0"><input type="text" name="ssi_search" size="30"> <input type="submit" value="', $txt['search'], '" class="button">
		</form>';
}

/**
 * Show a random forum news item
 *
 * @param string $output_method The output method. If 'echo', shows the news item, otherwise returns it.
 * @return void|string Shows or returns a random forum news item, depending on output_method.
 */
function ssi_news($output_method = 'echo')
{
	global $context;

	$context['random_news_line'] = !empty($context['news_lines']) ? $context['news_lines'][mt_rand(0, count($context['news_lines']) - 1)] : '';

	// If mods want to do somthing with the news, let them do that now. Don't need to pass the news line itself, since it is already in $context.
	call_integration_hook('integrate_ssi_news');

	if ($output_method != 'echo')
		return $context['random_news_line'];

	echo $context['random_news_line'];
}

/**
 * Show today's birthdays.
 *
 * @param string $output_method The output method. If 'echo', displays a list of users, otherwise returns an array of info about them.
 * @return void|array Displays a list of users or returns an array of info about them depending on output_method.
 */
function ssi_todaysBirthdays($output_method = 'echo')
{
	global $scripturl, $modSettings, $user_info;

	if (empty($modSettings['cal_enabled']) || !allowedTo('calendar_view') || !allowedTo('profile_view'))
		return;

	$eventOptions = array(
		'include_birthdays' => true,
		'num_days_shown' => empty($modSettings['cal_days_for_index']) || $modSettings['cal_days_for_index'] < 1 ? 1 : $modSettings['cal_days_for_index'],
	);
	$return = cache_quick_get('calendar_index_offset_' . ($user_info['time_offset'] + $modSettings['time_offset']), 'Subs-Calendar.php', 'cache_getRecentEvents', array($eventOptions));

	// The ssi_todaysCalendar variants all use the same hook and just pass on $eventOptions so the hooked code can distinguish different cases if necessary
	call_integration_hook('integrate_ssi_calendar', array(&$return, $eventOptions));

	if ($output_method != 'echo')
		return $return['calendar_birthdays'];

	foreach ($return['calendar_birthdays'] as $member)
		echo '
			<a href="', $scripturl, '?action=profile;u=', $member['id'], '"><span class="fix_rtl_names">' . $member['name'] . '</span>' . (isset($member['age']) ? ' (' . $member['age'] . ')' : '') . '</a>' . (!$member['is_last'] ? ', ' : '');
}

/**
 * Shows today's holidays.
 *
 * @param string $output_method The output method. If 'echo', displays a list of holidays, otherwise returns an array of info about them.
 * @return void|array Displays a list of holidays or returns an array of info about them depending on output_method
 */
function ssi_todaysHolidays($output_method = 'echo')
{
	global $modSettings, $user_info;

	if (empty($modSettings['cal_enabled']) || !allowedTo('calendar_view'))
		return;

	$eventOptions = array(
		'include_holidays' => true,
		'num_days_shown' => empty($modSettings['cal_days_for_index']) || $modSettings['cal_days_for_index'] < 1 ? 1 : $modSettings['cal_days_for_index'],
	);
	$return = cache_quick_get('calendar_index_offset_' . ($user_info['time_offset'] + $modSettings['time_offset']), 'Subs-Calendar.php', 'cache_getRecentEvents', array($eventOptions));

	// The ssi_todaysCalendar variants all use the same hook and just pass on $eventOptions so the hooked code can distinguish different cases if necessary
	call_integration_hook('integrate_ssi_calendar', array(&$return, $eventOptions));

	if ($output_method != 'echo')
		return $return['calendar_holidays'];

	echo '
		', implode(', ', $return['calendar_holidays']);
}

/**
 * Shows today's events.
 *
 * @param string $output_method The output method. If 'echo', displays a list of events, otherwise returns an array of info about them.
 * @return void|array Displays a list of events or returns an array of info about them depending on output_method
 */
function ssi_todaysEvents($output_method = 'echo')
{
	global $modSettings, $user_info;

	if (empty($modSettings['cal_enabled']) || !allowedTo('calendar_view'))
		return;

	$eventOptions = array(
		'include_events' => true,
		'num_days_shown' => empty($modSettings['cal_days_for_index']) || $modSettings['cal_days_for_index'] < 1 ? 1 : $modSettings['cal_days_for_index'],
	);
	$return = cache_quick_get('calendar_index_offset_' . ($user_info['time_offset'] + $modSettings['time_offset']), 'Subs-Calendar.php', 'cache_getRecentEvents', array($eventOptions));

	// The ssi_todaysCalendar variants all use the same hook and just pass on $eventOptions so the hooked code can distinguish different cases if necessary
	call_integration_hook('integrate_ssi_calendar', array(&$return, $eventOptions));

	if ($output_method != 'echo')
		return $return['calendar_events'];

	foreach ($return['calendar_events'] as $event)
	{
		if ($event['can_edit'])
			echo '
	<a href="' . $event['modify_href'] . '" style="color: #ff0000;">*</a> ';
		echo '
	' . $event['link'] . (!$event['is_last'] ? ', ' : '');
	}
}

/**
 * Shows today's calendar items (events, birthdays and holidays)
 *
 * @param string $output_method The output method. If 'echo', displays a list of calendar items, otherwise returns an array of info about them.
 * @return void|array Displays a list of calendar items or returns an array of info about them depending on output_method
 */
function ssi_todaysCalendar($output_method = 'echo')
{
	global $modSettings, $txt, $scripturl, $user_info;

	if (empty($modSettings['cal_enabled']) || !allowedTo('calendar_view'))
		return;

	$eventOptions = array(
		'include_birthdays' => allowedTo('profile_view'),
		'include_holidays' => true,
		'include_events' => true,
		'num_days_shown' => empty($modSettings['cal_days_for_index']) || $modSettings['cal_days_for_index'] < 1 ? 1 : $modSettings['cal_days_for_index'],
	);
	$return = cache_quick_get('calendar_index_offset_' . ($user_info['time_offset'] + $modSettings['time_offset']), 'Subs-Calendar.php', 'cache_getRecentEvents', array($eventOptions));

	// The ssi_todaysCalendar variants all use the same hook and just pass on $eventOptions so the hooked code can distinguish different cases if necessary
	call_integration_hook('integrate_ssi_calendar', array(&$return, $eventOptions));

	if ($output_method != 'echo')
		return $return;

	if (!empty($return['calendar_holidays']))
		echo '
			<span class="holiday">' . $txt['calendar_prompt'] . ' ' . implode(', ', $return['calendar_holidays']) . '<br></span>';
	if (!empty($return['calendar_birthdays']))
	{
		echo '
			<span class="birthday">' . $txt['birthdays_upcoming'] . '</span> ';
		foreach ($return['calendar_birthdays'] as $member)
			echo '
			<a href="', $scripturl, '?action=profile;u=', $member['id'], '"><span class="fix_rtl_names">', $member['name'], '</span>', isset($member['age']) ? ' (' . $member['age'] . ')' : '', '</a>', !$member['is_last'] ? ', ' : '';
		echo '
			<br>';
	}
	if (!empty($return['calendar_events']))
	{
		echo '
			<span class="event">' . $txt['events_upcoming'] . '</span> ';
		foreach ($return['calendar_events'] as $event)
		{
			if ($event['can_edit'])
				echo '
			<a href="' . $event['modify_href'] . '" style="color: #ff0000;">*</a> ';
			echo '
			' . $event['link'] . (!$event['is_last'] ? ', ' : '');
		}
	}
}

/**
 * Show the latest news, with a template... by board.
 *
 * @param null|int $board The ID of the board to get the info from. Defaults to $board or $_GET['board'] if not set.
 * @param null|int $limit How many items to show. Defaults to $_GET['limit'] or 5 if not set.
 * @param null|int $start Start with the specified item. Defaults to $_GET['start'] or 0 if not set.
 * @param null|int $length How many characters to show from each post. Defaults to $_GET['length'] or 0 (no limit) if not set.
 * @param string $output_method The output method. If 'echo', displays the news items, otherwise returns an array of info about them.
 * @return void|array Displays the news items or returns an array of info about them, depending on output_method.
 */
function ssi_boardNews($board = null, $limit = null, $start = null, $length = null, $output_method = 'echo')
{
	global $scripturl, $txt, $settings, $modSettings, $context;
	global $smcFunc;

	loadLanguage('Stats');

	// Must be integers....
	if ($limit === null)
		$limit = isset($_GET['limit']) ? (int) $_GET['limit'] : 5;
	else
		$limit = (int) $limit;

	if ($start === null)
		$start = isset($_GET['start']) ? (int) $_GET['start'] : 0;
	else
		$start = (int) $start;

	if ($board !== null)
		$board = (int) $board;
	elseif (isset($_GET['board']))
		$board = (int) $_GET['board'];

	if ($length === null)
		$length = isset($_GET['length']) ? (int) $_GET['length'] : 0;
	else
		$length = (int) $length;

	$limit = max(0, $limit);
	$start = max(0, $start);

	// Make sure guests can see this board.
	$request = $smcFunc['db_query']('', '
		SELECT id_board
		FROM {db_prefix}boards
		WHERE ' . ($board === null ? '' : 'id_board = {int:current_board}
			AND ') . 'FIND_IN_SET(-1, member_groups) != 0
		LIMIT 1',
		array(
			'current_board' => $board,
		)
	);
	if ($smcFunc['db_num_rows']($request) == 0)
	{
		if ($output_method == 'echo')
			die($txt['ssi_no_guests']);

Using exit here is not recommended.

		else
			return array();
	}
	list ($board) = $smcFunc['db_fetch_row']($request);
	$smcFunc['db_free_result']($request);

	$icon_sources = array();
	foreach ($context['stable_icons'] as $icon)
		$icon_sources[$icon] = 'images_url';

	if (!empty($modSettings['enable_likes']))
	{
		$context['can_like'] = allowedTo('likes_like');
	}

	// Find the post ids.
	$request = $smcFunc['db_query']('', '
		SELECT t.id_first_msg
		FROM {db_prefix}topics as t
			LEFT JOIN {db_prefix}boards as b ON (b.id_board = t.id_board)
		WHERE t.id_board = {int:current_board}' . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}' : '') . '
			AND {query_see_board}
		ORDER BY t.id_first_msg DESC
		LIMIT ' . $start . ', ' . $limit,
		array(
			'current_board' => $board,
			'is_approved' => 1,
		)
	);
	$posts = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
		$posts[] = $row['id_first_msg'];
	$smcFunc['db_free_result']($request);

	if (empty($posts))
		return array();

	// Find the posts.
	$request = $smcFunc['db_query']('', '
		SELECT
			m.icon, m.subject, m.body, COALESCE(mem.real_name, m.poster_name) AS poster_name, m.poster_time, m.likes,
			t.num_replies, t.id_topic, m.id_member, m.smileys_enabled, m.id_msg, t.locked, t.id_last_msg, m.id_board
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}messages AS m ON (m.id_msg = t.id_first_msg)
			LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = m.id_member)
		WHERE t.id_first_msg IN ({array_int:post_list})
		ORDER BY t.id_first_msg DESC
		LIMIT ' . count($posts),
		array(
			'post_list' => $posts,
		)
	);
	$return = array();
	$recycle_board = !empty($modSettings['recycle_enable']) && !empty($modSettings['recycle_board']) ? (int) $modSettings['recycle_board'] : 0;
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// If we want to limit the length of the post.
		if (!empty($length) && $smcFunc['strlen']($row['body']) > $length)
		{
			$row['body'] = $smcFunc['substr']($row['body'], 0, $length);
			$cutoff = false;

			$last_space = strrpos($row['body'], ' ');
			$last_open = strrpos($row['body'], '<');
			$last_close = strrpos($row['body'], '>');
			if (empty($last_space) || ($last_space == $last_open + 3 && (empty($last_close) || (!empty($last_close) && $last_close < $last_open))) || $last_space < $last_open || $last_open == $length - 6)
				$cutoff = $last_open;
			elseif (empty($last_close) || $last_close < $last_open)
				$cutoff = $last_space;

			if ($cutoff !== false)
				$row['body'] = $smcFunc['substr']($row['body'], 0, $cutoff);
			$row['body'] .= '...';
		}

		$row['body'] = parse_bbc($row['body'], $row['smileys_enabled'], $row['id_msg']);

		if (!empty($recycle_board) && $row['id_board'] == $recycle_board)
			$row['icon'] = 'recycled';

		// Check that this message icon is there...
		if (!empty($modSettings['messageIconChecks_enable']) && !isset($icon_sources[$row['icon']]))
			$icon_sources[$row['icon']] = file_exists($settings['theme_dir'] . '/images/post/' . $row['icon'] . '.png') ? 'images_url' : 'default_images_url';
		elseif (!isset($icon_sources[$row['icon']]))
			$icon_sources[$row['icon']] = 'images_url';

		censorText($row['subject']);
		censorText($row['body']);

		$return[] = array(
			'id' => $row['id_topic'],
			'message_id' => $row['id_msg'],
			'icon' => '<img src="' . $settings[$icon_sources[$row['icon']]] . '/post/' . $row['icon'] . '.png" alt="' . $row['icon'] . '">',
			'subject' => $row['subject'],
			'time' => timeformat($row['poster_time']),
			'timestamp' => forum_time(true, $row['poster_time']),
			'body' => $row['body'],
			'href' => $scripturl . '?topic=' . $row['id_topic'] . '.0',
			'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.0">' . $row['num_replies'] . ' ' . ($row['num_replies'] == 1 ? $txt['ssi_comment'] : $txt['ssi_comments']) . '</a>',
			'replies' => $row['num_replies'],
			'comment_href' => !empty($row['locked']) ? '' : $scripturl . '?action=post;topic=' . $row['id_topic'] . '.' . $row['num_replies'] . ';last_msg=' . $row['id_last_msg'],
			'comment_link' => !empty($row['locked']) ? '' : '<a href="' . $scripturl . '?action=post;topic=' . $row['id_topic'] . '.' . $row['num_replies'] . ';last_msg=' . $row['id_last_msg'] . '">' . $txt['ssi_write_comment'] . '</a>',
			'new_comment' => !empty($row['locked']) ? '' : '<a href="' . $scripturl . '?action=post;topic=' . $row['id_topic'] . '.' . $row['num_replies'] . '">' . $txt['ssi_write_comment'] . '</a>',
			'poster' => array(
				'id' => $row['id_member'],
				'name' => $row['poster_name'],
				'href' => !empty($row['id_member']) ? $scripturl . '?action=profile;u=' . $row['id_member'] : '',
				'link' => !empty($row['id_member']) ? '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['poster_name'] . '</a>' : $row['poster_name']
			),
			'locked' => !empty($row['locked']),
			'is_last' => false,
			// Nasty ternary for likes not messing around the "is_last" check.
			'likes' => !empty($modSettings['enable_likes']) ? array(
				'count' => $row['likes'],
				'you' => in_array($row['id_msg'], prepareLikesContext((int) $row['id_topic'])),
				'can_like' => !$context['user']['is_guest'] && $row['id_member'] != $context['user']['id'] && !empty($context['can_like']),
			) : array(),
		);
	}
	$smcFunc['db_free_result']($request);

	if (empty($return))
		return $return;

	$return[count($return) - 1]['is_last'] = true;

	// If mods want to do somthing with this list of posts, let them do that now.
	call_integration_hook('integrate_ssi_boardNews', array(&$return));

	if ($output_method != 'echo')
		return $return;

	foreach ($return as $news)
	{
		echo '
			<div class="news_item">
				<h3 class="news_header">
					', $news['icon'], '
					<a href="', $news['href'], '">', $news['subject'], '</a>
				</h3>
				<div class="news_timestamp">', $news['time'], ' ', $txt['by'], ' ', $news['poster']['link'], '</div>
				<div class="news_body" style="padding: 2ex 0;">', $news['body'], '</div>
				', $news['link'], $news['locked'] ? '' : ' | ' . $news['comment_link'], '';

		// Is there any likes to show?
		if (!empty($modSettings['enable_likes']))
		{
			echo '
					<ul>';

			if (!empty($news['likes']['can_like']))
			{
				echo '
						<li class="smflikebutton" id="msg_', $news['message_id'], '_likes"><a href="', $scripturl, '?action=likes;ltype=msg;sa=like;like=', $news['message_id'], ';', $context['session_var'], '=', $context['session_id'], '" class="msg_like"><span class="', $news['likes']['you'] ? 'unlike' : 'like', '"></span>', $news['likes']['you'] ? $txt['unlike'] : $txt['like'], '</a></li>';
			}

			if (!empty($news['likes']['count']))
			{
				$context['some_likes'] = true;
				$count = $news['likes']['count'];
				$base = 'likes_';
				if ($news['likes']['you'])
				{
					$base = 'you_' . $base;
					$count--;
				}
				$base .= (isset($txt[$base . $count])) ? $count : 'n';

				echo '
						<li class="like_count smalltext">', sprintf($txt[$base], $scripturl . '?action=likes;sa=view;ltype=msg;like=' . $news['message_id'] . ';' . $context['session_var'] . '=' . $context['session_id'], comma_format($count)), '</li>';
			}

			echo '
					</ul>';
		}

		// Close the main div.
		echo '
			</div>';

		if (!$news['is_last'])
			echo '
			<hr>';
	}
}

/**
 * Show the most recent events
 *
 * @param int $max_events The maximum number of events to show
 * @param string $output_method The output method. If 'echo', displays the events, otherwise returns an array of info about them.
 * @return void|array Displays the events or returns an array of info about them, depending on output_method.
 */
function ssi_recentEvents($max_events = 7, $output_method = 'echo')
{
	global $user_info, $scripturl, $modSettings, $txt, $context, $smcFunc;

	if (empty($modSettings['cal_enabled']) || !allowedTo('calendar_view'))
		return;

	// Find all events which are happening in the near future that the member can see.
	$request = $smcFunc['db_query']('', '
		SELECT
			cal.id_event, cal.start_date, cal.end_date, cal.title, cal.id_member, cal.id_topic,
			cal.start_time, cal.end_time, cal.timezone, cal.location,
			cal.id_board, t.id_first_msg, t.approved
		FROM {db_prefix}calendar AS cal
			LEFT JOIN {db_prefix}boards AS b ON (b.id_board = cal.id_board)
			LEFT JOIN {db_prefix}topics AS t ON (t.id_topic = cal.id_topic)
		WHERE cal.start_date <= {date:current_date}
			AND cal.end_date >= {date:current_date}
			AND (cal.id_board = {int:no_board} OR {query_wanna_see_board})
		ORDER BY cal.start_date DESC
		LIMIT ' . $max_events,
		array(
			'current_date' => strftime('%Y-%m-%d', forum_time(false)),
			'no_board' => 0,
		)
	);
	$return = array();
	$duplicates = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		// Check if we've already come by an event linked to this same topic with the same title... and don't display it if we have.
		if (!empty($duplicates[$row['title'] . $row['id_topic']]))
			continue;

		// Censor the title.
		censorText($row['title']);

		if ($row['start_date'] < strftime('%Y-%m-%d', forum_time(false)))
			$date = strftime('%Y-%m-%d', forum_time(false));
		else
			$date = $row['start_date'];

		// If the topic it is attached to is not approved then don't link it.
		if (!empty($row['id_first_msg']) && !$row['approved'])
			$row['id_board'] = $row['id_topic'] = $row['id_first_msg'] = 0;

		$allday = (empty($row['start_time']) || empty($row['end_time']) || empty($row['timezone']) || !in_array($row['timezone'], timezone_identifiers_list(DateTimeZone::ALL_WITH_BC))) ? true : false;

Are you sure the usage of timezone_identifiers_list(DateTimeZone::ALL_WITH_BC) is correct as it seems to always return null.

timezone_identifiers_list(DateTimeZone::ALL_WITH_BC) of type void is incompatible with the type array expected by parameter $haystack of in_array().

		$return[$date][] = array(
			'id' => $row['id_event'],
			'title' => $row['title'],
			'location' => $row['location'],
			'can_edit' => allowedTo('calendar_edit_any') || ($row['id_member'] == $user_info['id'] && allowedTo('calendar_edit_own')),
			'modify_href' => $scripturl . '?action=' . ($row['id_board'] == 0 ? 'calendar;sa=post;' : 'post;msg=' . $row['id_first_msg'] . ';topic=' . $row['id_topic'] . '.0;calendar;') . 'eventid=' . $row['id_event'] . ';' . $context['session_var'] . '=' . $context['session_id'],
			'href' => $row['id_board'] == 0 ? '' : $scripturl . '?topic=' . $row['id_topic'] . '.0',
			'link' => $row['id_board'] == 0 ? $row['title'] : '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.0">' . $row['title'] . '</a>',
			'start_date' => $row['start_date'],
			'end_date' => $row['end_date'],
			'start_time' => !$allday ? $row['start_time'] : null,
			'end_time' => !$allday ? $row['end_time'] : null,
			'tz' => !$allday ? $row['timezone'] : null,
			'allday' => $allday,
			'is_last' => false
		);

		// Let's not show this one again, huh?
		$duplicates[$row['title'] . $row['id_topic']] = true;
	}
	$smcFunc['db_free_result']($request);

	foreach ($return as $mday => $array)
		$return[$mday][count($array) - 1]['is_last'] = true;

	// If mods want to do somthing with this list of events, let them do that now.
	call_integration_hook('integrate_ssi_recentEvents', array(&$return));

	if ($output_method != 'echo' || empty($return))
		return $return;

	// Well the output method is echo.
	echo '
			<span class="event">' . $txt['events'] . '</span> ';
	foreach ($return as $mday => $array)
		foreach ($array as $event)
		{
			if ($event['can_edit'])
				echo '
				<a href="' . $event['modify_href'] . '" style="color: #ff0000;">*</a> ';

			echo '
				' . $event['link'] . (!$event['is_last'] ? ', ' : '');
		}
}

/**
 * Checks whether the specified password is correct for the specified user.
 *
 * @param int|string $id The ID or username of a user
 * @param string $password The password to check
 * @param bool $is_username If true, treats $id as a username rather than a user ID
 * @return bool Whether or not the password is correct.
 */
function ssi_checkPassword($id = null, $password = null, $is_username = false)
{
	global $smcFunc;

	// If $id is null, this was most likely called from a query string and should do nothing.
	if ($id === null)
		return;

	$request = $smcFunc['db_query']('', '
		SELECT passwd, member_name, is_activated
		FROM {db_prefix}members
		WHERE ' . ($is_username ? 'member_name' : 'id_member') . ' = {string:id}
		LIMIT 1',
		array(
			'id' => $id,
		)
	);
	list ($pass, $user, $active) = $smcFunc['db_fetch_row']($request);
	$smcFunc['db_free_result']($request);

	return hash_verify_password($user, $password, $pass) && $active == 1;
}

/**
 * Shows the most recent attachments that the user can see
 *
 * @param int $num_attachments How many to show
 * @param array $attachment_ext Only shows attachments with the specified extensions ('jpg', 'gif', etc.) if set
 * @param string $output_method The output method. If 'echo', displays a table with links/info, otherwise returns an array with information about the attachments
 * @return void|array Displays a table of attachment info or returns an array containing info about the attachments, depending on output_method.
 */
function ssi_recentAttachments($num_attachments = 10, $attachment_ext = array(), $output_method = 'echo')
{
	global $smcFunc, $modSettings, $scripturl, $txt, $settings;

	// We want to make sure that we only get attachments for boards that we can see *if* any.
	$attachments_boards = boardsAllowedTo('view_attachments');

	// No boards?  Adios amigo.
	if (empty($attachments_boards))
		return array();

	// Is it an array?
	$attachment_ext = (array) $attachment_ext;

	// Lets build the query.
	$request = $smcFunc['db_query']('', '
		SELECT
			att.id_attach, att.id_msg, att.filename, COALESCE(att.size, 0) AS filesize, att.downloads, mem.id_member,
			COALESCE(mem.real_name, m.poster_name) AS poster_name, m.id_topic, m.subject, t.id_board, m.poster_time,
			att.width, att.height' . (empty($modSettings['attachmentShowImages']) || empty($modSettings['attachmentThumbnails']) ? '' : ', COALESCE(thumb.id_attach, 0) AS id_thumb, thumb.width AS thumb_width, thumb.height AS thumb_height') . '
		FROM {db_prefix}attachments AS att
			INNER JOIN {db_prefix}messages AS m ON (m.id_msg = att.id_msg)
			INNER JOIN {db_prefix}topics AS t ON (t.id_topic = m.id_topic)
			LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = m.id_member)' . (empty($modSettings['attachmentShowImages']) || empty($modSettings['attachmentThumbnails']) ? '' : '
			LEFT JOIN {db_prefix}attachments AS thumb ON (thumb.id_attach = att.id_thumb)') . '
		WHERE att.attachment_type = 0' . ($attachments_boards === array(0) ? '' : '
			AND m.id_board IN ({array_int:boards_can_see})') . (!empty($attachment_ext) ? '
			AND att.fileext IN ({array_string:attachment_ext})' : '') .
			(!$modSettings['postmod_active'] || allowedTo('approve_posts') ? '' : '
			AND t.approved = {int:is_approved}
			AND m.approved = {int:is_approved}
			AND att.approved = {int:is_approved}') . '
		ORDER BY att.id_attach DESC
		LIMIT {int:num_attachments}',
		array(
			'boards_can_see' => $attachments_boards,
			'attachment_ext' => $attachment_ext,
			'num_attachments' => $num_attachments,
			'is_approved' => 1,
		)
	);

	// We have something.
	$attachments = array();
	while ($row = $smcFunc['db_fetch_assoc']($request))
	{
		$filename = preg_replace('~&amp;#(\\d{1,7}|x[0-9a-fA-F]{1,6});~', '&#\\1;', htmlspecialchars($row['filename']));

		// Is it an image?
		$attachments[$row['id_attach']] = array(
			'member' => array(
				'id' => $row['id_member'],
				'name' => $row['poster_name'],
				'link' => empty($row['id_member']) ? $row['poster_name'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['poster_name'] . '</a>',
			),
			'file' => array(
				'filename' => $filename,
				'filesize' => round($row['filesize'] / 1024, 2) . $txt['kilobyte'],
				'downloads' => $row['downloads'],
				'href' => $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $row['id_attach'],
				'link' => '<img src="' . $settings['images_url'] . '/icons/clip.png" alt=""> <a href="' . $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $row['id_attach'] . '">' . $filename . '</a>',
				'is_image' => !empty($row['width']) && !empty($row['height']) && !empty($modSettings['attachmentShowImages']),
			),
			'topic' => array(
				'id' => $row['id_topic'],
				'subject' => $row['subject'],
				'href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . '#msg' . $row['id_msg'],
				'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . '#msg' . $row['id_msg'] . '">' . $row['subject'] . '</a>',
				'time' => timeformat($row['poster_time']),
			),
		);

		// Images.
		if ($attachments[$row['id_attach']]['file']['is_image'])
		{
			$id_thumb = empty($row['id_thumb']) ? $row['id_attach'] : $row['id_thumb'];
			$attachments[$row['id_attach']]['file']['image'] = array(
				'id' => $id_thumb,
				'width' => $row['width'],
				'height' => $row['height'],
				'img' => '<img src="' . $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $row['id_attach'] . ';image" alt="' . $filename . '">',
				'thumb' => '<img src="' . $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $id_thumb . ';image" alt="' . $filename . '">',
				'href' => $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $id_thumb . ';image',
				'link' => '<a href="' . $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $row['id_attach'] . ';image"><img src="' . $scripturl . '?action=dlattach;topic=' . $row['id_topic'] . '.0;attach=' . $id_thumb . ';image" alt="' . $filename . '"></a>',
			);
		}
	}
	$smcFunc['db_free_result']($request);

	// If mods want to do somthing with this list of attachments, let them do that now.
	call_integration_hook('integrate_ssi_recentAttachments', array(&$attachments));

	// So you just want an array?  Here you can have it.
	if ($output_method == 'array' || empty($attachments))
		return $attachments;

	// Give them the default.
	echo '
		<table class="ssi_downloads">
			<tr>
				<th style="text-align: left; padding: 2">', $txt['file'], '</th>
				<th style="text-align: left; padding: 2">', $txt['posted_by'], '</th>
				<th style="text-align: left; padding: 2">', $txt['downloads'], '</th>
				<th style="text-align: left; padding: 2">', $txt['filesize'], '</th>
			</tr>';
	foreach ($attachments as $attach)
		echo '
			<tr>
				<td>', $attach['file']['link'], '</td>
				<td>', $attach['member']['link'], '</td>
				<td style="text-align: center">', $attach['file']['downloads'], '</td>
				<td>', $attach['file']['filesize'], '</td>
			</tr>';
	echo '
		</table>';
}

?>