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My users are getting an AVG alert when visiting the forum. Here's the link.

http://waesol.org/community/

Any ideas why?
(01-23-2012, 05:15 PM)ronniebellie Wrote: [ -> ]My users are getting an AVG alert when visiting the forum. Here's the link.

http://waesol.org/community/

Any ideas why?

works fine for me but of course I use Linux and not windoze may be I can find a windoze machine later to test it for you
McAfee blocks it too (or attempts to)
fix this first
[Image: ScreenShot011-1.png]
(01-23-2012, 06:20 PM)lexy Wrote: [ -> ]fix this first
[Image: ScreenShot011-1.png]

How do I fix that?
(01-23-2012, 06:23 PM)ronniebellie Wrote: [ -> ]
(01-23-2012, 06:20 PM)lexy Wrote: [ -> ]fix this first
[Image: ScreenShot011-1.png]

How do I fix that?

navigate to inc/functions.php and line 1680 and post up its contents or in fact the function if the line is within one... As Linux disregardes the error I guess the problem lies within code added to functions.php to target Windows machines perhaps reupload & overwrite inc/functions.php
(01-23-2012, 06:58 PM)JimR Wrote: [ -> ]
(01-23-2012, 06:23 PM)ronniebellie Wrote: [ -> ]
(01-23-2012, 06:20 PM)lexy Wrote: [ -> ]fix this first
[Image: ScreenShot011-1.png]

How do I fix that?

navigate to inc/functions.php and line 1680 and post up its contents or in fact the function if the line is within one... As Linux disregardes the error I guess the problem lies within code added to functions.php to target Windows machines perhaps reupload & overwrite inc/functions.php

Thanks for your help with this. Here's the contents of the function.php file.

_______________________________________________
<?php
/**
* MyBB 1.6
* Copyright 2010 MyBB Group, All Rights Reserved
*
* Website: http://mybb.com
* License: http://mybb.com/about/license
*
* $Id: functions.php 5639 2011-10-26 09:16:47Z Tomm $
*/

/**
* Outputs a page directly to the browser, parsing anything which needs to be parsed.
*
* @param string The contents of the page.
*/
function output_page($contents)
{
global $db, $lang, $theme, $plugins, $mybb;
global $debug, $templatecache, $templatelist, $maintimer, $globaltime, $parsetime;

$contents = parse_page($contents);
$totaltime = $maintimer->stop();

if($mybb->usergroup['cancp'] == 1)
{
if($mybb->settings['extraadmininfo'] != 0)
{
$phptime = $maintimer->format($maintimer->totaltime - $db->query_time);
$query_time = $maintimer->format($db->query_time);

if($maintimer->totaltime > 0)
{
$percentphp = number_format((($phptime/$maintimer->totaltime) * 100), 2);
$percentsql = number_format((($query_time/$maintimer->totaltime) * 100), 2);
}
else
{
// if we've got a super fast script... all we can do is assume something
$percentphp = 0;
$percentsql = 0;
}

$phpversion = PHP_VERSION;

$serverload = get_server_load();

if(my_strpos(getenv("REQUEST_URI"), "?"))
{
$debuglink = htmlspecialchars(getenv("REQUEST_URI")) . "&amp;debug=1";
}
else
{
$debuglink = htmlspecialchars(getenv("REQUEST_URI")) . "?debug=1";
}

if($mybb->settings['gzipoutput'] != 0)
{
$gzipen = "Enabled";
}
else
{
$gzipen = "Disabled";
}

if(function_exists("memory_get_usage"))
{
$memory_usage = " / Memory Usage: ".get_friendly_size(memory_get_peak_usage(true));
}

$other = "PHP version: $phpversion / Server Load: $serverload / GZip Compression: $gzipen";
$debugstuff = "Generated in $totaltime seconds ($percentphp% PHP / $percentsql% MySQL)<br />SQL Queries: $db->query_count / Global Parsing Time: $globaltime$memory_usage<br />$other<br />[<a href=\"$debuglink\" target=\"_blank\">advanced details</a>]<br />";
$contents = str_replace("<debugstuff>", $debugstuff, $contents);
}

if($mybb->debug_mode == true)
{
debug_page();
}
}

$contents = str_replace("<debugstuff>", "", $contents);
$contents = $plugins->run_hooks("pre_output_page", $contents);

if($mybb->settings['gzipoutput'] == 1)
{
$contents = gzip_encode($contents, $mybb->settings['gziplevel']);
}

@header("Content-type: text/html; charset={$lang->settings['charset']}");

echo $contents;

$plugins->run_hooks("post_output_page");

// If the use shutdown functionality is turned off, run any shutdown related items now.
if($mybb->settings['useshutdownfunc'] == 0 && $mybb->use_shutdown != true)
{
run_shutdown();
}
}

/**
* Adds a function or class to the list of code to run on shutdown.
*
* @param mixed The name of the function.
* @param mixed An array of arguments for the function
* @return boolean True if function exists, otherwise false.
*/
function add_shutdown($name, $arguments=array())
{
global $shutdown_functions;

if(!is_array($arguments))
{
$arguments = array($arguments);
}

if(is_array($name) && method_exists($name[0], $name[1]))
{
$shutdown_functions["class_".get_class($name[0])."_".$name[1]] = array('function' => $name, 'arguments' => $arguments);
return true;
}
else if(!is_array($name) && function_exists($name))
{
$shutdown_functions[$name] = array('function' => $name, 'arguments' => $arguments);
return true;
}

return false;
}

/**
* Runs the shutdown items after the page has been sent to the browser.
*
*/
function run_shutdown()
{
global $config, $db, $cache, $plugins, $error_handler, $shutdown_functions, $shutdown_queries, $done_shutdown, $mybb;

if($done_shutdown == true || !$config || $error_handler->has_errors)
{
return;
}

// Missing the core? Build
if(!is_object($mybb))
{
require_once MYBB_ROOT."inc/class_core.php";
$mybb = new MyBB;

// Load the settings
require MYBB_ROOT."inc/settings.php";
$mybb->settings = &$settings;
}


// If our DB has been deconstructed already (bad PHP 5.2.0), reconstruct
if(!is_object($db))
{
if(!isset($config) || empty($config['database']['type']))
{
require MYBB_ROOT."inc/config.php";
}

if(isset($config))
{
require_once MYBB_ROOT."inc/db_".$config['database']['type'].".php";
switch($config['database']['type'])
{
case "sqlite":
$db = new DB_SQLite;
break;
case "pgsql":
$db = new DB_PgSQL;
break;
case "mysqli":
$db = new DB_MySQLi;
break;
default:
$db = new DB_MySQL;
}


$db->connect($config['database']);
define("TABLE_PREFIX", $config['database']['table_prefix']);
$db->set_table_prefix(TABLE_PREFIX);
}
}

// Cache object deconstructed? reconstruct
if(!is_object($cache))
{
require_once MYBB_ROOT."inc/class_datacache.php";
$cache = new datacache;
$cache->cache();
}

// And finally.. plugins
if(!is_object($plugins) && !defined("NO_PLUGINS") && !($mybb->settings['no_plugins'] == 1))
{
require_once MYBB_ROOT."inc/class_plugins.php";
$plugins = new pluginSystem;
$plugins->load();
}

// We have some shutdown queries needing to be run
if(is_array($shutdown_queries))
{
// Loop through and run them all
foreach($shutdown_queries as $query)
{
$db->query($query);
}
}

// Run any shutdown functions if we have them
if(is_array($shutdown_functions))
{
foreach($shutdown_functions as $function)
{
call_user_func_array($function['function'], $function['arguments']);
}
}

$done_shutdown = true;
}

/**
* Sends a specified amount of messages from the mail queue
*
* @param int The number of messages to send (Defaults to 10)
*/
function send_mail_queue($count=10)
{
global $db, $cache, $plugins;

$plugins->run_hooks("send_mail_queue_start");

// Check to see if the mail queue has messages needing to be sent
$mailcache = $cache->read("mailqueue");
if($mailcache['queue_size'] > 0 && ($mailcache['locked'] == 0 || $mailcache['locked'] < TIME_NOW-300))
{
// Lock the queue so no other messages can be sent whilst these are (for popular boards)
$cache->update_mailqueue(0, TIME_NOW);

// Fetch emails for this page view - and send them
$query = $db->simple_select("mailqueue", "*", "", array("order_by" => "mid", "order_dir" => "asc", "limit_start" => 0, "limit" => $count));

while($email = $db->fetch_array($query))
{
// Delete the message from the queue
$db->delete_query("mailqueue", "mid='{$email['mid']}'");

if($db->affected_rows() == 1)
{
my_mail($email['mailto'], $email['subject'], $email['message'], $email['mailfrom'], "", $email['headers']);
}
}
// Update the mailqueue cache and remove the lock
$cache->update_mailqueue(TIME_NOW, 0);
}

$plugins->run_hooks("send_mail_queue_end");
}

/**
* Parses the contents of a page before outputting it.
*
* @param string The contents of the page.
* @return string The parsed page.
*/
function parse_page($contents)
{
global $lang, $theme, $mybb, $htmldoctype, $archive_url, $error_handler;

$contents = str_replace('<navigation>', build_breadcrumb(1), $contents);
$contents = str_replace('<archive_url>', $archive_url, $contents);

if($htmldoctype)
{
$contents = $htmldoctype.$contents;
}
else
{
$contents = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n".$contents;
}

$contents = str_replace("<html", "<html xmlns=\"http://www.w3.org/1999/xhtml\"", $contents);

if($lang->settings['rtl'] == 1)
{
$contents = str_replace("<html", "<html dir=\"rtl\"", $contents);
}

if($lang->settings['htmllang'])
{
$contents = str_replace("<html", "<html xml:lang=\"".$lang->settings['htmllang']."\" lang=\"".$lang->settings['htmllang']."\"", $contents);
}

if($error_handler->warnings)
{
$contents = str_replace("<body>", "<body>\n".$error_handler->show_warnings(), $contents);
}

return $contents;
}

/**
* Turn a unix timestamp in to a "friendly" date/time format for the user.
*
* @param string A date format according to PHP's date structure.
* @param int The unix timestamp the date should be generated for.
* @param int The offset in hours that should be applied to times. (timezones)
* @param int Whether or not to use today/yesterday formatting.
* @param boolean Whether or not to use the adodb time class for < 1970 or > 2038 times
* @return string The formatted timestamp.
*/
function my_date($format, $stamp="", $offset="", $ty=1, $adodb=false)
{
global $mybb, $lang, $mybbadmin, $plugins;

// If the stamp isn't set, use TIME_NOW
if(empty($stamp))
{
$stamp = TIME_NOW;
}

if(!$offset && $offset != '0')
{
if($mybb->user['uid'] != 0 && array_key_exists("timezone", $mybb->user))
{
$offset = $mybb->user['timezone'];
$dstcorrection = $mybb->user['dst'];
}
elseif(defined("IN_ADMINCP"))
{
$offset = $mybbadmin['timezone'];
$dstcorrection = $mybbadmin['dst'];
}
else
{
$offset = $mybb->settings['timezoneoffset'];
$dstcorrection = $mybb->settings['dstcorrection'];
}

// If DST correction is enabled, add an additional hour to the timezone.
if($dstcorrection == 1)
{
++$offset;
if(my_substr($offset, 0, 1) != "-")
{
$offset = "+".$offset;
}
}
}

if($offset == "-")
{
$offset = 0;
}

if($adodb == true && function_exists('adodb_date'))
{
$date = adodb_date($format, $stamp + ($offset * 3600));
}
else
{
$date = gmdate($format, $stamp + ($offset * 3600));
}

if($mybb->settings['dateformat'] == $format && $ty)
{
$stamp = TIME_NOW;

if($adodb == true && function_exists('adodb_date'))
{
$todaysdate = adodb_date($format, $stamp + ($offset * 3600));
$yesterdaysdate = adodb_date($format, ($stamp - 86400) + ($offset * 3600));
}
else
{
$todaysdate = gmdate($format, $stamp + ($offset * 3600));
$yesterdaysdate = gmdate($format, ($stamp - 86400) + ($offset * 3600));
}

if($todaysdate == $date)
{
$date = $lang->today;
}
else if($yesterdaysdate == $date)
{
$date = $lang->yesterday;
}
}

if(is_object($plugins))
{
$date = $plugins->run_hooks("my_date", $date);
}

return $date;
}

/**
* Sends an email using PHP's mail function, formatting it appropriately.
*
* @param string Address the email should be addressed to.
* @param string The subject of the email being sent.
* @param string The message being sent.
* @param string The from address of the email, if blank, the board name will be used.
* @param string The chracter set being used to send this email.
* @param boolean Do we wish to keep the connection to the mail server alive to send more than one message (SMTP only)
* @param string The format of the email to be sent (text or html). text is default
* @param string The text message of the email if being sent in html format, for email clients that don't support html
* @param string The email address to return to. Defaults to admin return email address.
*/
function my_mail($to, $subject, $message, $from="", $charset="", $headers="", $keep_alive=false, $format="text", $message_text="", $return_email="")
{
global $mybb;
static $mail;

// Does our object not exist? Create it
if(!is_object($mail))
{
require_once MYBB_ROOT."inc/class_mailhandler.php";

if($mybb->settings['mail_handler'] == 'smtp')
{
require_once MYBB_ROOT."inc/mailhandlers/smtp.php";
$mail = new SmtpMail();
}
else
{
require_once MYBB_ROOT."inc/mailhandlers/php.php";
$mail = new PhpMail();
}
}

// Using SMTP based mail
if($mybb->settings['mail_handler'] == 'smtp')
{
if($keep_alive == true)
{
$mail->keep_alive = true;
}
}

// Using PHP based mail()
else
{
if($mybb->settings['mail_parameters'] != '')
{
$mail->additional_parameters = $mybb->settings['mail_parameters'];
}
}

// Build and send
$mail->build_message($to, $subject, $message, $from, $charset, $headers, $format, $message_text, $return_email);
return $mail->send();
}

/**
* Generates a unique code for POST requests to prevent XSS/CSRF attacks
*
* @return string The generated code
*/
function generate_post_check()
{
global $mybb;
if($mybb->user['uid'])
{
return md5($mybb->user['loginkey'].$mybb->user['salt'].$mybb->user['regdate']);
}
// Guests get a special string
else
{
return md5($mybb->settings['bburl'].$mybb->config['database']['username'].$mybb->settings['internal']['encryption_key']);
}
}

/**
* Verifies a POST check code is valid, if not shows an error (silently returns false on silent parameter)
*
* @param string The incoming POST check code
* @param boolean Silent mode or not (silent mode will not show the error to the user but returns false)
*/
function verify_post_check($code, $silent=false)
{
global $lang;
if(generate_post_check() != $code)
{
if($silent == true)
{
return false;
}
else
{
if(defined("IN_ADMINCP"))
{
return false;
}
else
{
error($lang->invalid_post_code);
}
}
}
else
{
return true;
}
}

/**
* Return a parent list for the specified forum.
*
* @param int The forum id to get the parent list for.
* @return string The comma-separated parent list.
*/
function get_parent_list($fid)
{
global $forum_cache;
static $forumarraycache;

if($forumarraycache[$fid])
{
return $forumarraycache[$fid]['parentlist'];
}
elseif($forum_cache[$fid])
{
return $forum_cache[$fid]['parentlist'];
}
else
{
cache_forums();
return $forum_cache[$fid]['parentlist'];
}
}

/**
* Build a parent list of a specific forum, suitable for querying
*
* @param int The forum ID
* @param string The column name to add to the query
* @param string The joiner for each forum for querying (OR | AND | etc)
* @param string The parent list of the forum - if you have it
* @return string The query string generated
*/
function build_parent_list($fid, $column="fid", $joiner="OR", $parentlist="")
{
if(!$parentlist)
{
$parentlist = get_parent_list($fid);
}

$parentsexploded = explode(",", $parentlist);
$builtlist = "(";
$sep = '';

foreach($parentsexploded as $key => $val)
{
$builtlist .= "$sep$column='$val'";
$sep = " $joiner ";
}

$builtlist .= ")";

return $builtlist;
}

/**
* Load the forum cache in to memory
*
* @param boolean True to force a reload of the cache
*/
function cache_forums($force=false)
{
global $forum_cache, $cache;

if($force == true)
{
$forum_cache = $cache->read("forums", 1);
return $forum_cache;
}

if(!$forum_cache)
{
$forum_cache = $cache->read("forums");
if(!$forum_cache)
{
$cache->update_forums();
$forum_cache = $cache->read("forums", 1);
}
}
return $forum_cache;
}

/**
* Generate an array of all child and descendant forums for a specific forum.
*
* @param int The forum ID
* @param return Array of descendants
*/
function get_child_list($fid)
{
static $forums_by_parent;

$forums = array();
if(!is_array($forums_by_parent))
{
$forum_cache = cache_forums();
foreach($forum_cache as $forum)
{
if($forum['active'] != 0)
{
$forums_by_parent[$forum['pid']][$forum['fid']] = $forum;
}
}
}
if(!is_array($forums_by_parent[$fid]))
{
return;
}

foreach($forums_by_parent[$fid] as $forum)
{
$forums[] = $forum['fid'];
$children = get_child_list($forum['fid']);
if(is_array($children))
{
$forums = array_merge($forums, $children);
}
}
return $forums;
}

/**
* Produce a friendly error message page
*
* @param string The error message to be shown
* @param string The title of the message shown in the title of the page and the error table
*/
function error($error="", $title="")
{
global $header, $footer, $theme, $headerinclude, $db, $templates, $lang, $mybb, $plugins;

$error = $plugins->run_hooks("error", $error);
if(!$error)
{
$error = $lang->unknown_error;
}

// AJAX error message?
if($mybb->input['ajax'])
{
// Send our headers.
@header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<error>{$error}</error>\n";
exit;
}

if(!$title)
{
$title = $mybb->settings['bbname'];
}

$timenow = my_date($mybb->settings['dateformat'], TIME_NOW) . " " . my_date($mybb->settings['timeformat'], TIME_NOW);
reset_breadcrumb();
add_breadcrumb($lang->error);

eval("\$errorpage = \"".$templates->get("error")."\";");
output_page($errorpage);

exit;
}

/**
* Produce an error message for displaying inline on a page
*
* @param array Array of errors to be shown
* @param string The title of the error message
* @return string The inline error HTML
*/
function inline_error($errors, $title="")
{
global $theme, $mybb, $db, $lang, $templates;

if(!$title)
{
$title = $lang->please_correct_errors;
}

if(!is_array($errors))
{
$errors = array($errors);
}

// AJAX error message?
if($mybb->input['ajax'])
{
$error = implode("\n\n", $errors);
// Send our headers.
@header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<error>{$error}</error>\n";
exit;
}

foreach($errors as $error)
{
$errorlist .= "<li>".$error."</li>\n";
}

eval("\$errors = \"".$templates->get("error_inline")."\";");

return $errors;
}

/**
* Presents the user with a "no permission" page
*/
function error_no_permission()
{
global $mybb, $theme, $templates, $db, $lang, $plugins, $session;

$time = TIME_NOW;
$plugins->run_hooks("no_permission");

$noperm_array = array (
"nopermission" => '1',
"location1" => 0,
"location2" => 0
);

$db->update_query("sessions", $noperm_array, "sid='{$session->sid}'", 1);

if($mybb->input['ajax'])
{
// Send our headers.
header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<error>{$lang->error_nopermission_user_ajax}</error>\n";
exit;
}

if($mybb->user['uid'])
{
$lang->error_nopermission_user_username = $lang->sprintf($lang->error_nopermission_user_username, $mybb->user['username']);
eval("\$errorpage = \"".$templates->get("error_nopermission_loggedin")."\";");
}
else
{
// Redirect to where the user came from
if($_SERVER['HTTP_REFERER'])
{
$redirect_url = htmlentities($_SERVER['HTTP_REFERER']);
}
else
{
$redirect_url = '';
}

eval("\$errorpage = \"".$templates->get("error_nopermission")."\";");
}

error($errorpage);
}

/**
* Redirect the user to a given URL with a given message
*
* @param string The URL to redirect the user to
* @param string The redirection message to be shown
*/
function redirect($url, $message="", $title="")
{
global $header, $footer, $mybb, $theme, $headerinclude, $templates, $lang, $plugins;

$redirect_args = array('url' => &$url, 'message' => &$message, 'title' => &$title);

$plugins->run_hooks("redirect", $redirect_args);

if($mybb->input['ajax'])
{
// Send our headers.
@header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<script type=\"text/javascript\">\n";
if($message != "")
{
echo 'alert("'.addslashes($message).'");';
}
$url = str_replace("#", "&#", $url);
$url = htmlspecialchars_decode($url);
$url = str_replace(array("\n","\r",";"), "", $url);
echo 'window.location = "'.addslashes($url).'";'."\n";
echo "</script>\n";
exit;
}

if(!$message)
{
$message = $lang->redirect;
}

$time = TIME_NOW;
$timenow = my_date($mybb->settings['dateformat'], $time) . " " . my_date($mybb->settings['timeformat'], $time);

if(!$title)
{
$title = $mybb->settings['bbname'];
}

// Show redirects only if both ACP and UCP settings are enabled, or ACP is enabled, and user is a guest.
if($mybb->settings['redirects'] == 1 && ($mybb->user['showredirect'] != 0 || !$mybb->user['uid']))
{
$url = str_replace("&amp;", "&", $url);
$url = htmlspecialchars($url);

eval("\$redirectpage = \"".$templates->get("redirect")."\";");
output_page($redirectpage);
}
else
{
$url = htmlspecialchars_decode($url);
$url = str_replace(array("\n","\r",";"), "", $url);

run_shutdown();

if(my_substr($url, 0, 7) !== 'http://' && my_substr($url, 0, 8) !== 'https://')
{
header("Location: {$mybb->settings['bburl']}/{$url}");
}
else
{
header("Location: {$url}");
}
}

exit;
}

/**
* Generate a listing of page - pagination
*
* @param int The number of items
* @param int The number of items to be shown per page
* @param int The current page number
* @param string The URL to have page numbers tacked on to (If {page} is specified, the value will be replaced with the page #)
* @return string The generated pagination
*/
function multipage($count, $perpage, $page, $url, $breadcrumb=false)
{
global $theme, $templates, $lang, $mybb;

if($count <= $perpage)
{
return;
}

$url = str_replace("&amp;", "&", $url);
$url = htmlspecialchars_uni($url);

$pages = ceil($count / $perpage);

if($page > 1)
{
$prev = $page-1;
$page_url = fetch_page_url($url, $prev);
eval("\$prevpage = \"".$templates->get("multipage_prevpage")."\";");
}

// Maximum number of "page bits" to show
if(!$mybb->settings['maxmultipagelinks'])
{
$mybb->settings['maxmultipagelinks'] = 5;
}

$from = $page-floor($mybb->settings['maxmultipagelinks']/2);
$to = $page+floor($mybb->settings['maxmultipagelinks']/2);

if($from <= 0)
{
$from = 1;
$to = $from+$mybb->settings['maxmultipagelinks']-1;
}

if($to > $pages)
{
$to = $pages;
$from = $pages-$mybb->settings['maxmultipagelinks']+1;
if($from <= 0)
{
$from = 1;
}
}

if($to == 0)
{
$to = $pages;
}

if($from > 1)
{
if($from-1 == 1)
{
$lang->multipage_link_start = '';
}

$page_url = fetch_page_url($url, 1);
eval("\$start = \"".$templates->get("multipage_start")."\";");
}

for($i = $from; $i <= $to; ++$i)
{
$page_url = fetch_page_url($url, $i);
if($page == $i)
{
if($breadcrumb == true)
{
eval("\$mppage .= \"".$templates->get("multipage_page_link_current")."\";");
}
else
{
eval("\$mppage .= \"".$templates->get("multipage_page_current")."\";");
}
}
else
{
eval("\$mppage .= \"".$templates->get("multipage_page")."\";");
}
}

if($to < $pages)
{
if($to+1 == $pages)
{
$lang->multipage_link_end = '';
}

$page_url = fetch_page_url($url, $pages);
eval("\$end = \"".$templates->get("multipage_end")."\";");
}

if($page < $pages)
{
$next = $page+1;
$page_url = fetch_page_url($url, $next);
eval("\$nextpage = \"".$templates->get("multipage_nextpage")."\";");
}
$lang->multipage_pages = $lang->sprintf($lang->multipage_pages, $pages);

if($breadcrumb == true)
{
eval("\$multipage = \"".$templates->get("multipage_breadcrumb")."\";");
}
else
{
eval("\$multipage = \"".$templates->get("multipage")."\";");
}

return $multipage;
}

/**
* Generate a page URL for use by the multipage function
*
* @param string The URL being passed
* @param int The page number
*/
function fetch_page_url($url, $page)
{
if($page <= 1)
{
$find = array(
"-page-{page}",
"&amp;page={page}",
"{page}"
);

// Remove "Page 1" to the defacto URL
$url = str_replace($find, array("", "", $page), $url);
return $url;
}
else if(strpos($url, "{page}") === false)
{
// If no page identifier is specified we tack it on to the end of the URL
if(strpos($url, "?") === false)
{
$url .= "?";
}
else
{
$url .= "&amp;";
}

$url .= "page=$page";
}
else
{
$url = str_replace("{page}", $page, $url);
}

return $url;
}

/**
* Fetch the permissions for a specific user
*
* @param int The user ID
* @return array Array of user permissions for the specified user
*/
function user_permissions($uid=0)
{
global $mybb, $cache, $groupscache, $user_cache;

// If no user id is specified, assume it is the current user
if($uid == 0)
{
$uid = $mybb->user['uid'];
}

// User id does not match current user, fetch permissions
if($uid != $mybb->user['uid'])
{
// We've already cached permissions for this user, return them.
if($user_cache[$uid]['permissions'])
{
return $user_cache[$uid]['permissions'];
}

// This user was not already cached, fetch their user information.
if(!$user_cache[$uid])
{
$user_cache[$uid] = get_user($uid);
}

// Collect group permissions.
$gid = $user_cache[$uid]['usergroup'].",".$user_cache[$uid]['additionalgroups'];
$groupperms = usergroup_permissions($gid);

// Store group permissions in user cache.
$user_cache[$uid]['permissions'] = $groupperms;
return $groupperms;
}
// This user is the current user, return their permissions
else
{
return $mybb->usergroup;
}
}

/**
* Fetch the usergroup permissions for a specic group or series of groups combined
*
* @param mixed A list of groups (Can be a single integer, or a list of groups separated by a comma)
* @return array Array of permissions generated for the groups
*/
function usergroup_permissions($gid=0)
{
global $cache, $groupscache, $grouppermignore, $groupzerogreater;

if(!is_array($groupscache))
{
$groupscache = $cache->read("usergroups");
}

$groups = explode(",", $gid);


if(count($groups) == 1)
{
return $groupscache[$gid];
}

foreach($groups as $gid)
{
if(trim($gid) == "" || !$groupscache[$gid])
{
continue;
}

foreach($groupscache[$gid] as $perm => $access)
{
if(!in_array($perm, $grouppermignore))
{
if(isset($usergroup[$perm]))
{
$permbit = $usergroup[$perm];
}
else
{
$permbit = "";
}

// 0 represents unlimited for numerical group permissions (i.e. private message limit) so take that into account.
if(in_array($perm, $groupzerogreater) && ($access == 0 || $permbit === 0))
{
$usergroup[$perm] = 0;
continue;
}

if($access > $permbit || ($access == "yes" && $permbit == "no") || !$permbit) // Keep yes/no for compatibility?
{
$usergroup[$perm] = $access;
}
}
}
}

return $usergroup;
}

/**
* Fetch the display group properties for a specific display group
*
* @param int The group ID to fetch the display properties for
* @return array Array of display properties for the group
*/
function usergroup_displaygroup($gid)
{
global $cache, $groupscache, $displaygroupfields;

if(!is_array($groupscache))
{
$groupscache = $cache->read("usergroups");
}

$displaygroup = array();
$group = $groupscache[$gid];

foreach($displaygroupfields as $field)
{
$displaygroup[$field] = $group[$field];
}

return $displaygroup;
}

/**
* Build the forum permissions for a specific forum, user or group
*
* @param int The forum ID to build permissions for (0 builds for all forums)
* @param int The user to build the permissions for (0 will select the uid automatically)
* @param int The group of the user to build permissions for (0 will fetch it)
* @return array Forum permissions for the specific forum or forums
*/
function forum_permissions($fid=0, $uid=0, $gid=0)
{
global $db, $cache, $groupscache, $forum_cache, $fpermcache, $mybb, $usercache, $cached_forum_permissions_permissions, $cached_forum_permissions;

if($uid == 0)
{
$uid = $mybb->user['uid'];
}

if(!$gid || $gid == 0) // If no group, we need to fetch it
{
if($uid != 0 && $uid != $mybb->user['uid'])
{
if(!$usercache[$uid])
{
$query = $db->simple_select("users", "*", "uid='$uid'");
$usercache[$uid] = $db->fetch_array($query);
}

$gid = $usercache[$uid]['usergroup'].",".$usercache[$uid]['additionalgroups'];
$groupperms = usergroup_permissions($gid);
}
else
{
$gid = $mybb->user['usergroup'];

if(isset($mybb->user['additionalgroups']))
{
$gid .= ",".$mybb->user['additionalgroups'];
}

$groupperms = $mybb->usergroup;
}
}

if(!is_array($forum_cache))
{
$forum_cache = cache_forums();

if(!$forum_cache)
{
return false;
}
}

if(!is_array($fpermcache))
{
$fpermcache = $cache->read("forumpermissions");
}

if($fid) // Fetch the permissions for a single forum
{
if(!$cached_forum_permissions_permissions[$gid][$fid])
{
$cached_forum_permissions_permissions[$gid][$fid] = fetch_forum_permissions($fid, $gid, $groupperms);
}
return $cached_forum_permissions_permissions[$gid][$fid];
}
else
{
if(!$cached_forum_permissions[$gid])
{
foreach($forum_cache as $forum)
{
$cached_forum_permissions[$gid][$forum['fid']] = fetch_forum_permissions($forum['fid'], $gid, $groupperms);
}
}
return $cached_forum_permissions[$gid];
}
}

/**
* Fetches the permissions for a specific forum/group applying the inheritance scheme.
* Called by forum_permissions()
*
* @param int The forum ID
* @param string A comma separated list of usergroups
* @param array Group permissions
* @return array Permissions for this forum
*/
function fetch_forum_permissions($fid, $gid, $groupperms)
{
global $groupscache, $forum_cache, $fpermcache, $mybb, $fpermfields;

$groups = explode(",", $gid);

if(!$fpermcache[$fid]) // This forum has no custom or inherited permissions so lets just return the group permissions
{
return $groupperms;
}

$current_permissions = array();
$only_view_own_threads = 1;

foreach($groups as $gid)
{
if($groupscache[$gid])
{
$level_permissions = $fpermcache[$fid][$gid];

// If our permissions arn't inherited we need to figure them out
if(empty($level_permissions))
{
$parents = explode(',', $forum_cache[$fid]['parentlist']);
rsort($parents);
if(!empty($parents))
{
foreach($parents as $parent_id)
{
if(!empty($fpermcache[$parent_id][$gid]))
{
$level_permissions = $fpermcache[$parent_id][$gid];
break;
}
}

// If we STILL don't have forum permissions we use the usergroup itself
if(empty($level_permissions))
{
$level_permissions = $groupscache[$gid];
}
}
}

foreach($level_permissions as $permission => $access)
{
if($access >= $current_permissions[$permission] || ($access == "yes" && $current_permissions[$permission] == "no") || !$current_permissions[$permission])
{
$current_permissions[$permission] = $access;
}
}

if(!$level_permissions["canonlyviewownthreads"])
{
$only_view_own_threads = 0;
}
}
}

// Figure out if we can view more than our own threads
if($only_view_own_threads == 0)
{
$current_permissions["canonlyviewownthreads"] = 0;
}

if(count($current_permissions) == 0)
{
$current_permissions = $groupperms;
}
return $current_permissions;
}

/**
* Check the password given on a certain forum for validity
*
* @param int The forum ID
* @param boolean The Parent ID
*/
function check_forum_password($fid, $pid=0)
{
global $mybb, $header, $footer, $headerinclude, $theme, $templates, $lang, $forum_cache;

$showform = true;

if(!is_array($forum_cache))
{
$forum_cache = cache_forums();
if(!$forum_cache)
{
return false;
}
}

// Loop through each of parent forums to ensure we have a password for them too
$parents = explode(',', $forum_cache[$fid]['parentlist']);
rsort($parents);
if(!empty($parents))
{
foreach($parents as $parent_id)
{
if($parent_id == $fid || $parent_id == $pid)
{
continue;
}

if($forum_cache[$parent_id]['password'] != "")
{
check_forum_password($parent_id, $fid);
}
}
}

$password = $forum_cache[$fid]['password'];
if($password)
{
if($mybb->input['pwverify'] && $pid == 0)
{
if($password == $mybb->input['pwverify'])
{
my_setcookie("forumpass[$fid]", md5($mybb->user['uid'].$mybb->input['pwverify']), null, true);
$showform = false;
}
else
{
eval("\$pwnote = \"".$templates->get("forumdisplay_password_wrongpass")."\";");
$showform = true;
}
}
else
{
if(!$mybb->cookies['forumpass'][$fid] || ($mybb->cookies['forumpass'][$fid] && md5($mybb->user['uid'].$password) != $mybb->cookies['forumpass'][$fid]))
{
$showform = true;
}
else
{
$showform = false;
}
}
}
else
{
$showform = false;
}

if($showform)
{
if($pid)
{
header("Location: ".$mybb->settings['bburl']."/".get_forum_link($fid));
}
else
{
$_SERVER['REQUEST_URI'] = htmlspecialchars_uni($_SERVER['REQUEST_URI']);
eval("\$pwform = \"".$templates->get("forumdisplay_password")."\";");
output_page($pwform);
}
exit;
}
}

/**
* Return the permissions for a moderator in a specific forum
*
* @param fid The forum ID
* @param uid The user ID to fetch permissions for (0 assumes current logged in user)
* @param string The parent list for the forum (if blank, will be fetched)
* @return array Array of moderator permissions for the specific forum
*/
function get_moderator_permissions($fid, $uid="0", $parentslist="")
{
global $mybb, $cache, $db;
static $modpermscache;

if($uid < 1)
{
$uid = $mybb->user['uid'];
}

if($uid == 0)
{
return false;
}

if(isset($modpermscache[$fid][$uid]))
{
return $modpermscache[$fid][$uid];
}

if(!$parentslist)
{
$parentslist = explode(',', get_parent_list($fid));
}

// Get user groups
$perms = array();
$user = get_user($uid);

$groups = array($user['usergroup']);

if(!empty($user['additionalgroups']))
{
$extra_groups = explode(",", $user['additionalgroups']);

foreach($extra_groups as $extra_group)
{
$groups[] = $extra_group;
}
}

$mod_cache = $cache->read("moderators");

foreach($mod_cache as $fid => $forum)
{
if(!is_array($forum) || !in_array($fid, $parentslist))
{
// No perms or we're not after this forum
continue;
}

// User settings override usergroup settings
if(is_array($forum['users'][$uid]))
{
$perm = $forum['users'][$uid];
foreach($perm as $action => $value)
{
if(strpos($action, "can") === false)
{
continue;
}

// Figure out the user permissions
if($value == 0)
{
// The user doesn't have permission to set this action
$perms[$action] = 0;
}
else
{
$perms[$action] = max($perm[$action], $perms[$action]);
}
}
}

foreach($groups as $group)
{
if(!is_array($forum['usergroups'][$group]))
{
// There are no permissions set for this group
continue;
}

$perm = $forum['usergroups'][$group];
foreach($perm as $action => $value)
{
if(strpos($action, "can") === false)
{
continue;
}

$perms[$action] = max($perm[$action], $perms[$action]);
}
}
}

$modpermscache[$fid][$uid] = $perms;

return $perms;
}

/**
* Checks if a moderator has permissions to perform an action in a specific forum
*
* @param int The forum ID (0 assumes global)
* @param string The action tyring to be performed. (blank assumes any action at all)
* @param int The user ID (0 assumes current user)
* @return bool Returns true if the user has permission, false if they do not
*/
function is_moderator($fid="0", $action="", $uid="0")
{
global $mybb, $cache;

if($uid == 0)
{
$uid = $mybb->user['uid'];
}

if($uid == 0)
{
return false;
}

$user_perms = user_permissions($uid);
if($user_perms['issupermod'] == 1)
{
return true;
}
else
{
if(!$fid)
{
$modcache = $cache->read('moderators');
if(!empty($modcache))
{
foreach($modcache as $modusers)
{
if(isset($modusers['users'][$uid]) && $modusers['users'][$uid]['mid'])
{
return true;
}
elseif(isset($modusers['usergroups'][$user_perms['gid']]))
{
// Moderating usergroup
return true;
}
}
}
return false;
}
else
{
$modperms = get_moderator_permissions($fid, $uid);

if(!$action && $modperms)
{
return true;
}
else
{
if($modperms[$action] == 1)
{
return true;
}
else
{
return false;
}
}
}
}
}

/**
* Generate a list of the posticons.
*
* @return string The template of posticons.
*/
function get_post_icons()
{
global $mybb, $cache, $icon, $theme, $templates, $lang;

$listed = 0;
if($mybb->input['icon'])
{
$icon = $mybb->input['icon'];
}

$no_icons_checked = " checked=\"checked\"";
// read post icons from cache, and sort them accordingly
$posticons_cache = $cache->read("posticons");
$posticons = array();
foreach($posticons_cache as $posticon)
{
$posticons[$posticon['name']] = $posticon;
}
krsort($posticons);

foreach($posticons as $dbicon)
{
$dbicon['path'] = htmlspecialchars_uni($dbicon['path']);
$dbicon['name'] = htmlspecialchars_uni($dbicon['name']);

if($icon == $dbicon['iid'])
{
$iconlist .= "<label><input type=\"radio\" name=\"icon\" value=\"".$dbicon['iid']."\" checked=\"checked\" /> <img src=\"".$dbicon['path']."\" alt=\"".$dbicon['name']."\" /></label>";
$no_icons_checked = "";
}
else
{
$iconlist .= "<label><input type=\"radio\" name=\"icon\" value=\"".$dbicon['iid']."\" /> <img src=\"".$dbicon['path']."\" alt=\"".$dbicon['name']."\" /></label>";
}

++$listed;
if($listed == 10)
{
$iconlist .= "<br />";
$listed = 0;
}
}

eval("\$posticons = \"".$templates->get("posticons")."\";");

return $posticons;
}

/**
* MyBB setcookie() wrapper.
*
* @param string The cookie identifier.
* @param string The cookie value.
* @param int The timestamp of the expiry date.
* @param boolean True if setting a HttpOnly cookie (supported by IE, Opera 9, Konqueror)
*/
function my_setcookie($name, $value="", $expires="", $httponly=false)
{
global $mybb;

if(!$mybb->settings['cookiepath'])
{
$mybb->settings['cookiepath'] = "/";
}

if($expires == -1)
{
$expires = 0;
}
elseif($expires == "" || $expires == null)
{
$expires = TIME_NOW + (60*60*24*365); // Make the cookie expire in a years time
}
else
{
$expires = TIME_NOW + intval($expires);
}

$mybb->settings['cookiepath'] = str_replace(array("\n","\r"), "", $mybb->settings['cookiepath']);
$mybb->settings['cookiedomain'] = str_replace(array("\n","\r"), "", $mybb->settings['cookiedomain']);
$mybb->settings['cookieprefix'] = str_replace(array("\n","\r", " "), "", $mybb->settings['cookieprefix']);

// Versions of PHP prior to 5.2 do not support HttpOnly cookies and IE is buggy when specifying a blank domain so set the cookie manually
$cookie = "Set-Cookie: {$mybb->settings['cookieprefix']}{$name}=".urlencode($value);

if($expires > 0)
{
$cookie .= "; expires="[email protected]('D, d-M-Y H:i:s \\G\\M\\T', $expires);
}

if(!empty($mybb->settings['cookiepath']))
{
$cookie .= "; path={$mybb->settings['cookiepath']}";
}

if(!empty($mybb->settings['cookiedomain']))
{
$cookie .= "; domain={$mybb->settings['cookiedomain']}";
}

if($httponly == true)
{
$cookie .= "; HttpOnly";
}

$mybb->cookies[$name] = $value;

header($cookie, false);
}

/**
* Unset a cookie set by MyBB.
*
* @param string The cookie identifier.
*/
function my_unsetcookie($name)
{
global $mybb;

$expires = -3600;
my_setcookie($name, "", $expires);

unset($mybb->cookies[$name]);
}

/**
* Get the contents from a serialised cookie array.
*
* @param string The cookie identifier.
* @param int The cookie content id.
* @return array|boolean The cookie id's content array or false when non-existent.
*/
function my_get_array_cookie($name, $id)
{
global $mybb;

if(!isset($mybb->cookies['mybb'][$name]))
{
return false;
}

$cookie = unserialize($mybb->cookies['mybb'][$name]);

if(is_array($cookie) && isset($cookie[$id]))
{
return $cookie[$id];
}
else
{
return 0;
}
}

/**
* Set a serialised cookie array.
*
* @param string The cookie identifier.
* @param int The cookie content id.
* @param string The value to set the cookie to.
*/
function my_set_array_cookie($name, $id, $value, $expires="")
{
global $mybb;

$cookie = $mybb->cookies['mybb'];
$newcookie = unserialize($cookie[$name]);

if(!is_array($newcookie))
{
// Burnt / malformed cookie - reset
$newcookie = array();
}

$newcookie[$id] = $value;
$newcookie = serialize($newcookie);
my_setcookie("mybb[$name]", addslashes($newcookie), $expires);

// Make sure our current viarables are up-to-date as well
$mybb->cookies['mybb'][$name] = $newcookie;
}

/**
* Returns the serverload of the system.
*
* @return int The serverload of the system.
*/
function get_server_load()
{
global $lang;

$serverload = array();

// DIRECTORY_SEPARATOR checks if running windows
if(DIRECTORY_SEPARATOR != '\\')
{
if(function_exists("sys_getloadavg"))
{
// sys_getloadavg() will return an array with [0] being load within the last minute.
$serverload = sys_getloadavg();
$serverload[0] = round($serverload[0], 4);
}
else if(@file_exists("/proc/loadavg") && $load = @file_get_contents("/proc/loadavg"))
{
$serverload = explode(" ", $load);
$serverload[0] = round($serverload[0], 4);
}
if(!is_numeric($serverload[0]))
{
if(@ini_get('safe_mode') == 'On')
{
return $lang->unknown;
}

// Suhosin likes to throw a warning if exec is disabled then die - weird
if($func_blacklist = @ini_get('suhosin.executor.func.blacklist'))
{
if(strpos(",".$func_blacklist.",", 'exec') !== false)
{
return $lang->unknown;
}
}
// PHP disabled functions?
if($func_blacklist = @ini_get('disable_functions'))
{
if(strpos(",".$func_blacklist.",", 'exec') !== false)
{
return $lang->unknown;
}
}

$load = @exec("uptime");
$load = explode("load average: ", $load);
$serverload = explode(",", $load[1]);
if(!is_array($serverload))
{
return $lang->unknown;
}
}
}
else
{
return $lang->unknown;
}

$returnload = trim($serverload[0]);

return $returnload;
}

/**
* Updates the forum statistics with specific values (or addition/subtraction of the previous value)
*
* @param array Array of items being updated (numthreads,numposts,numusers)
*/
function update_stats($changes=array())
{
global $cache, $db;

$stats = $cache->read("stats");

$counters = array('numthreads','numunapprovedthreads','numposts','numunapprovedposts','numusers');
$update = array();
foreach($counters as $counter)
{
if(array_key_exists($counter, $changes))
{
// Adding or subtracting from previous value?
if(substr($changes[$counter], 0, 1) == "+" || substr($changes[$counter], 0, 1) == "-")
{
if(intval($changes[$counter]) != 0)
{
$new_stats[$counter] = $stats[$counter] + $changes[$counter];
}
}
else
{
$new_stats[$counter] = $changes[$counter];
}
// Less than 0? That's bad
if($new_stats[$counter] < 0)
{
$new_stats[$counter] = 0;
}
}
}

// Fetch latest user if the user count is changing
if(array_key_exists('numusers', $changes))
{
$query = $db->simple_select("users", "uid, username", "", array('order_by' => 'uid', 'order_dir' => 'DESC', 'limit' => 1));
$lastmember = $db->fetch_array($query);
$new_stats['lastuid'] = $lastmember['uid'];
$new_stats['lastusername'] = $lastmember['username'];
}

if(empty($new_stats))
{
return;
}

if(is_array($stats))
{
$stats = array_merge($stats, $new_stats);
}
else
{
$stats = $new_stats;
}

// Update stats row for today in the database
$todays_stats = array(
"dateline" => mktime(0, 0, 0, date("m"), date("j"), date("Y")),
"numusers" => $stats['numusers'],
"numthreads" => $stats['numthreads'],
"numposts" => $stats['numposts']
);
$db->replace_query("stats", $todays_stats, "dateline");

$cache->update("stats", $stats, "dateline");
}

/**
* Updates the forum counters with a specific value (or addition/subtraction of the previous value)
*
* @param int The forum ID
* @param array Array of items being updated (threads, posts, unapprovedthreads, unapprovedposts) and their value (ex, 1, +1, -1)
*/
function update_forum_counters($fid, $changes=array())
{
global $db, $cache;

$update_query = array();

$counters = array('threads','unapprovedthreads','posts','unapprovedposts');

// Fetch above counters for this forum
$query = $db->simple_select("forums", implode(",", $counters), "fid='{$fid}'");
$forum = $db->fetch_array($query);

foreach($counters as $counter)
{
if(array_key_exists($counter, $changes))
{
// Adding or subtracting from previous value?
if(substr($changes[$counter], 0, 1) == "+" || substr($changes[$counter], 0, 1) == "-")
{
$update_query[$counter] = $forum[$counter] + $changes[$counter];
}
else
{
$update_query[$counter] = $changes[$counter];
}

// Less than 0? That's bad
if(!$update_query[$counter])
{
$update_query[$counter] = 0;
}
}
}

// Only update if we're actually doing something
if(count($update_query) > 0)
{
$db->update_query("forums", $update_query, "fid='".intval($fid)."'");
}

// Guess we should update the statistics too?
if(isset($update_query['threads']) || isset($update_query['posts']) || isset($update_query['unapprovedthreads']) || isset($update_query['unapprovedposts']))
{
$new_stats = array();
if(array_key_exists('threads', $update_query))
{
$threads_diff = $update_query['threads'] - $forum['threads'];
if($threads_diff > -1)
{
$new_stats['numthreads'] = "+{$threads_diff}";
}
else
{
$new_stats['numthreads'] = "{$threads_diff}";
}
}

if(array_key_exists('unapprovedthreads', $update_query))
{
$unapprovedthreads_diff = $update_query['unapprovedthreads'] - $forum['unapprovedthreads'];
if($unapprovedthreads_diff > -1)
{
$new_stats['numunapprovedthreads'] = "+{$unapprovedthreads_diff}";
}
else
{
$new_stats['numunapprovedthreads'] = "{$unapprovedthreads_diff}";
}
}

if(array_key_exists('posts', $update_query))
{
$posts_diff = $update_query['posts'] - $forum['posts'];
if($posts_diff > -1)
{
$new_stats['numposts'] = "+{$posts_diff}";
}
else
{
$new_stats['numposts'] = "{$posts_diff}";
}
}

if(array_key_exists('unapprovedposts', $update_query))
{
$unapprovedposts_diff = $update_query['unapprovedposts'] - $forum['unapprovedposts'];
if($unapprovedposts_diff > -1)
{
$new_stats['numunapprovedposts'] = "+{$unapprovedposts_diff}";
}
else
{
$new_stats['numunapprovedposts'] = "{$unapprovedposts_diff}";
}
}
update_stats($new_stats);
}

// Update last post info
update_forum_lastpost($fid);

$cache->update_forums();
}

/**
* Update the last post information for a specific forum
*
* @param int The forum ID
*/
function update_forum_lastpost($fid)
{
global $db;

// Fetch the last post for this forum
$query = $db->query("
SELECT tid, lastpost, lastposter, lastposteruid, subject
FROM ".TABLE_PREFIX."threads
WHERE fid='{$fid}' AND visible='1' AND closed NOT LIKE 'moved|%'
ORDER BY lastpost DESC
LIMIT 0, 1
");
$lastpost = $db->fetch_array($query);

$updated_forum = array(
"lastpost" => intval($lastpost['lastpost']),
"lastposter" => $db->escape_string($lastpost['lastposter']),
"lastposteruid" => intval($lastpost['lastposteruid']),
"lastposttid" => intval($lastpost['tid']),
"lastpostsubject" => $db->escape_string($lastpost['subject'])
);

$db->update_query("forums", $updated_forum, "fid='{$fid}'");
}

/**
* Updates the thread counters with a specific value (or addition/subtraction of the previous value)
*
* @param int The thread ID
* @param array Array of items being updated (replies, unapprovedposts, attachmentcount) and their value (ex, 1, +1, -1)
*/
function update_thread_counters($tid, $changes=array())
{
global $db;

$update_query = array();

$counters = array('replies','unapprovedposts','attachmentcount', 'attachmentcount');

// Fetch above counters for this thread
$query = $db->simple_select("threads", implode(",", $counters), "tid='{$tid}'");
$thread = $db->fetch_array($query);

foreach($counters as $counter)
{
if(array_key_exists($counter, $changes))
{
// Adding or subtracting from previous value?
if(substr($changes[$counter], 0, 1) == "+" || substr($changes[$counter], 0, 1) == "-")
{
$update_query[$counter] = $thread[$counter] + $changes[$counter];
}
else
{
$update_query[$counter] = $changes[$counter];
}

// Less than 0? That's bad
if($update_query[$counter] < 0)
{
$update_query[$counter] = 0;
}
}
}

$db->free_result($query);

// Only update if we're actually doing something
if(count($update_query) > 0)
{
$db->update_query("threads", $update_query, "tid='".intval($tid)."'");
}

unset($update_query, $thread);

update_thread_data($tid);
}

/**
* Update the first post and lastpost data for a specific thread
*
* @param int The thread ID
*/
function update_thread_data($tid)
{
global $db;
$query = $db->query("
SELECT u.uid, u.username, p.username AS postusername, p.dateline
FROM ".TABLE_PREFIX."posts p
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=p.uid)
WHERE p.tid='$tid' AND p.visible='1'
ORDER BY p.dateline DESC
LIMIT 1"
);
$lastpost = $db->fetch_array($query);

$db->free_result($query);

$query = $db->query("
SELECT u.uid, u.username, p.username AS postusername, p.dateline
FROM ".TABLE_PREFIX."posts p
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=p.uid)
WHERE p.tid='$tid'
ORDER BY p.dateline ASC
LIMIT 1
");
$firstpost = $db->fetch_array($query);

$db->free_result($query);

if(!$firstpost['username'])
{
$firstpost['username'] = $firstpost['postusername'];
}

if(!$lastpost['username'])
{
$lastpost['username'] = $lastpost['postusername'];
}

if(!$lastpost['dateline'])
{
$lastpost['username'] = $firstpost['username'];
$lastpost['uid'] = $firstpost['uid'];
$lastpost['dateline'] = $firstpost['dateline'];
}

$lastpost['username'] = $db->escape_string($lastpost['username']);
$firstpost['username'] = $db->escape_string($firstpost['username']);

$update_array = array(
'username' => $firstpost['username'],
'uid' => intval($firstpost['uid']),
'dateline' => intval($firstpost['dateline']),
'lastpost' => intval($lastpost['dateline']),
'lastposter' => $lastpost['username'],
'lastposteruid' => intval($lastpost['uid']),
);
$db->update_query("threads", $update_array, "tid='{$tid}'");

unset($firstpost, $lastpost, $update_array);
}

function update_forum_count($fid)
{
die("Deprecated function call: update_forum_count");
}
function update_thread_count($tid)
{
die("Deprecated function call: update_thread_count");
}
function update_thread_attachment_count($tid)
{
die("Deprecated function call: update_thread_attachment_count");
}

/**
* Deletes a thread from the database
*
* @param int The thread ID
*/
function delete_thread($tid)
{
global $moderation;

if(!is_object($moderation))
{
require_once MYBB_ROOT."inc/class_moderation.php";
$moderation = new Moderation;
}

return $moderation->delete_thread($tid);
}

/**
* Deletes a post from the database
*
* @param int The thread ID
*/
function delete_post($pid, $tid="")
{
global $moderation;

if(!is_object($moderation))
{
require_once MYBB_ROOT."inc/class_moderation.php";
$moderation = new Moderation;
}

return $moderation->delete_post($pid);
}

/**
* Builds a forum jump menu
*
* @param int The parent forum to start with
* @param int The selected item ID
* @param int If we need to add select boxes to this cal or not
* @param int The current depth of forums we're at
* @param int Whether or not to show extra items such as User CP, Forum home
* @param boolean Ignore the showinjump setting and show all forums (for moderation pages)
* @param array Array of permissions
* @param string The name of the forum jump
* @return string Forum jump items
*/
function build_forum_jump($pid="0", $selitem="", $addselect="1", $depth="", $showextras="1", $showall=false, $permissions="", $name="fid")
{
global $forum_cache, $jumpfcache, $permissioncache, $mybb, $selecteddone, $forumjump, $forumjumpbits, $gobutton, $theme, $templates, $lang;

$pid = intval($pid);

if($permissions)
{
$permissions = $mybb->usergroup;
}

if(!is_array($jumpfcache))
{
if(!is_array($forum_cache))
{
cache_forums();
}

foreach($forum_cache as $fid => $forum)
{
if($forum['active'] != 0)
{
$jumpfcache[$forum['pid']][$forum['disporder']][$forum['fid']] = $forum;
}
}
}

if(!is_array($permissioncache))
{
$permissioncache = forum_permissions();
}

if(is_array($jumpfcache[$pid]))
{
foreach($jumpfcache[$pid] as $main)
{
foreach($main as $forum)
{
$perms = $permissioncache[$forum['fid']];

if($forum['fid'] != "0" && ($perms['canview'] != 0 || $mybb->settings['hideprivateforums'] == 0) && $forum['linkto'] == '' && ($forum['showinjump'] != 0 || $showall == true))
{
$optionselected = "";

if($selitem == $forum['fid'])
{
$optionselected = "selected=\"selected\"";
$selecteddone = 1;
}

$forum['name'] = htmlspecialchars_uni(strip_tags($forum['name']));

eval("\$forumjumpbits .= \"".$templates->get("forumjump_bit")."\";");

if($forum_cache[$forum['fid']])
{
$newdepth = $depth."--";
$forumjumpbits .= build_forum_jump($forum['fid'], $selitem, 0, $newdepth, $showextras, $showall);
}
}
}
}
}

if($addselect)
{
if(!$selecteddone)
{
if(!$selitem)
{
$selitem = "default";
}

$jumpsel[$selitem] = 'selected="selected"';
}

if($showextras == 0)
{
$template = "special";
}
else
{
$template = "advanced";
}

eval("\$forumjump = \"".$templates->get("forumjump_".$template)."\";");
}

return $forumjump;
}

/**
* Returns the extension of a file.
*
* @param string The filename.
* @return string The extension of the file.
*/
function get_extension($file)
{
return my_strtolower(my_substr(strrchr($file, "."), 1));
}

/**
* Generates a random string.
*
* @param int The length of the string to generate.
* @return string The random string.
*/
function random_str($length="8")
{
$set = array("a","A","b","B","c","C","d","D","e","E","f","F","g","G","h","H","i","I","j","J","k","K","l","L","m","M","n","N","o","O","p","P","q","Q","r","R","s","S","t","T","u","U","v","V","w","W","x","X","y","Y","z","Z","1","2","3","4","5","6","7","8","9");
$str = '';

for($i = 1; $i <= $length; ++$i)
{
$ch = my_rand(0, count($set)-1);
$str .= $set[$ch];
}

return $str;
}

/**
* Formats a username based on their display group
*
* @param string The username
* @param int The usergroup for the user (if not specified, will be fetched)
* @param int The display group for the user (if not specified, will be fetched)
* @return string The formatted username
*/
function format_name($username, $usergroup, $displaygroup="")
{
global $groupscache, $cache;

if(!is_array($groupscache))
{
$groupscache = $cache->read("usergroups");
}

if($displaygroup != 0)
{
$usergroup = $displaygroup;
}

$ugroup = $groupscache[$usergroup];
$format = $ugroup['namestyle'];
$userin = substr_count($format, "{username}");

if($userin == 0)
{
$format = "{username}";
}

$format = stripslashes($format);

return str_replace("{username}", $username, $format);
}

/**
* Build the javascript based MyCode inserter
*
* @return string The MyCode inserter
*/
function build_mycode_inserter($bind="message")
{
global $db, $mybb, $theme, $templates, $lang, $plugins;

if($mybb->settings['bbcodeinserter'] != 0)
{
$editor_lang_strings = array(
"editor_title_bold",
"editor_title_italic",
"editor_title_underline",
"editor_title_left",
"editor_title_center",
"editor_title_right",
"editor_title_justify",
"editor_title_numlist",
"editor_title_bulletlist",
"editor_title_image",
"editor_title_hyperlink",
"editor_title_email",
"editor_title_quote",
"editor_title_code",
"editor_title_php",
"editor_title_close_tags",
"editor_enter_list_item",
"editor_enter_url",
"editor_enter_url_title",
"editor_enter_email",
"editor_enter_email_title",
"editor_enter_image",
"editor_enter_video_url",
"editor_video_dailymotion",
"editor_video_metacafe",
"editor_video_myspacetv",
"editor_video_vimeo",
"editor_video_yahoo",
"editor_video_youtube",
"editor_size_xx_small",
"editor_size_x_small",
"editor_size_small",
"editor_size_medium",
"editor_size_large",
"editor_size_x_large",
"editor_size_xx_large",
"editor_font",
"editor_size",
"editor_color"
);
$editor_language = "var editor_language = {\n";

$editor_lang_strings = $plugins->run_hooks("mycode_add_codebuttons", $editor_lang_strings);

foreach($editor_lang_strings as $key => $lang_string)
{
// Strip initial editor_ off language string if it exists - ensure case sensitivity does not matter.
$js_lang_string = preg_replace("#^editor_#i", "", $lang_string);
$string = str_replace("\"", "\\\"", $lang->$lang_string);
$editor_language .= "\t{$js_lang_string}: \"{$string}\"";

if($editor_lang_strings[$key+1])
{
$editor_language .= ",";
}

$editor_language .= "\n";
}

$editor_language .= "};";

if(defined("IN_ADMINCP"))
{
global $page;
$codeinsert = $page->build_codebuttons_editor($bind, $editor_language);
}
else
{
eval("\$codeinsert = \"".$templates->get("codebuttons")."\";");
}
}

return $codeinsert;
}

/**
* Build the javascript clickable smilie inserter
*
* @return string The clickable smilies list
*/
function build_clickable_smilies()
{
global $cache, $smiliecache, $theme, $templates, $lang, $mybb, $smiliecount;

if($mybb->settings['smilieinserter'] != 0 && $mybb->settings['smilieinsertercols'] && $mybb->settings['smilieinsertertot'])
{
if(!$smiliecount)
{
$smilie_cache = $cache->read("smilies");
$smiliecount = count($smilie_cache);
}

if(!$smiliecache)
{
if(!is_array($smilie_cache))
{
$smilie_cache = $cache->read("smilies");
}
foreach($smilie_cache as $smilie)
{
if($smilie['showclickable'] != 0)
{
$smiliecache[$smilie['find']] = $smilie['image'];
}
}
}

unset($smilie);

if(is_array($smiliecache))
{
reset($smiliecache);

if($mybb->settings['smilieinsertertot'] >= $smiliecount)
{
$mybb->settings['smilieinsertertot'] = $smiliecount;
}
else if($mybb->settings['smilieinsertertot'] < $smiliecount)
{
$smiliecount = $mybb->settings['smilieinsertertot'];
eval("\$getmore = \"".$templates->get("smilieinsert_getmore")."\";");
}

$smilies = "";
$counter = 0;
$i = 0;

foreach($smiliecache as $find => $image)
{
if($i < $mybb->settings['smilieinsertertot'])
{
if($counter == 0)
{
$smilies .= "<tr>\n";
}

$find = htmlspecialchars_uni($find);
$smilies .= "<td style=\"text-align: center\"><img src=\"{$image}\" border=\"0\" class=\"smilie\" alt=\"{$find}\" /></td>\n";
++$i;
++$counter;

if($counter == $mybb->settings['smilieinsertercols'])
{
$counter = 0;
$smilies .= "</tr>\n";
}
}
}

if($counter != 0)
{
$colspan = $mybb->settings['smilieinsertercols'] - $counter;
$smilies .= "<td colspan=\"{$colspan}\">&nbsp;</td>\n</tr>\n";
}

eval("\$clickablesmilies = \"".$templates->get("smilieinsert")."\";");
}
else
{
$clickablesmilies = "";
}
}
else
{
$clickablesmilies = "";
}

return $clickablesmilies;
}

/**
* Builds thread prefixes and returns a selected prefix (or all)
*
* @param int The prefix ID (0 to return all)
* @return array The thread prefix's values (or all thread prefixes)
*/
function build_prefixes($pid=0)
{
global $cache;
static $prefixes_cache;

if(is_array($prefixes_cache))
{
if($pid > 0 && is_array($prefixes_cache[$pid]))
{
return $prefixes_cache[$pid];
}

return $prefixes_cache;
}

$prefix_cache = $cache->read("threadprefixes");

if(!is_array($prefix_cache))
{
// No cache
$prefix_cache = $cache->read("threadprefixes", true);

if(!is_array($prefix_cache))
{
return array();
}
}

$prefixes_cache = array();
foreach($prefix_cache as $prefix)
{
$prefixes_cache[$prefix['pid']] = $prefix;
}

if($pid != 0 && is_array($prefixes_cache[$pid]))
{
return $prefixes_cache[$pid];
}
else if(!empty($prefixes_cache))
{
return $prefixes_cache;
}

return false;
}

/**
* Build the thread prefix selection menu
*
* @param mixed The forum ID (integer ID or string all)
* @param mixed The selected prefix ID (integer ID or string any)
* @return string The thread prefix selection menu
*/
function build_prefix_select($fid, $selected_pid=0, $multiple=0)
{
global $cache, $db, $lang, $mybb;

if($fid != 'all')
{
$fid = intval($fid);
}

$prefix_cache = build_prefixes(0);
if(!$prefix_cache)
{
return false; // We've got no prefixes to show
}

$groups = array($mybb->user['usergroup']);
if($mybb->user['additionalgroups'])
{
$exp = explode(",", $mybb->user['additionalgroups']);

foreach($exp as $group)
{
$groups[] = $group;
}
}

// Go through each of our prefixes and decide which ones we can use
$prefixes = array();
foreach($prefix_cache as $prefix)
{
if($fid != "all" && $prefix['forums'] != "-1")
{
// Decide whether this prefix can be used in our forum
$forums = explode(",", $prefix['forums']);

if(!in_array($fid, $forums))
{
// This prefix is not in our forum list
continue;
}
}

if($prefix['groups'] != "-1")
{
$prefix_groups = explode(",", $prefix['groups']);

foreach($groups as $group)
{
if(in_array($group, $prefix_groups) && !isset($prefixes[$prefix['pid']]))
{
// Our group can use this prefix!
$prefixes[$prefix['pid']] = $prefix;
}
}
}
else
{
// This prefix is for anybody to use...
$prefixes[$prefix['pid']] = $prefix;
}
}

if(empty($prefixes))
{
return false;
}

$prefixselect = "";
$multipleselect = "";
if($multiple != 0)
{
$multipleselect = " multiple=\"multiple\" size=\"5\"";
}

$prefixselect = "<select name=\"threadprefix\"{$multipleselect}>\n";

if($multiple == 1)
{
$any_selected = "";
if($selected_pid == 'any')
{
$any_selected = " selected=\"selected\"";
}

$prefixselect .= "<option value=\"any\"".$any_selected.">".$lang->any_prefix."</option>\n";
}

$default_selected = "";
if((intval($selected_pid) == 0) && $selected_pid != 'any')
{
$default_selected = " selected=\"selected\"";
}

$prefixselect .= "<option value=\"0\"".$default_selected.">".$lang->no_prefix."</option>\n";

foreach($prefixes as $prefix)
{
$selected = "";
if($prefix['pid'] == $selected_pid)
{
$selected = " selected=\"selected\"";
}

$prefixselect .= "<option value=\"".$prefix['pid']."\"".$selected.">".htmlspecialchars_uni($prefix['prefix'])."</option>\n";
}

$prefixselect .= "</select>\n&nbsp;";

return $prefixselect;
}

/**
* Gzip encodes text to a specified level
*
* @param string The string to encode
* @param int The level (1-9) to encode at
* @return string The encoded string
*/
function gzip_encode($contents, $level=1)
{
if(function_exists("gzcompress") && function_exists("crc32") && !headers_sent() && !(ini_get('output_buffering') && my_strpos(' '.ini_get('output_handler'), 'ob_gzhandler')))
{
$httpaccept_encoding = '';

if(isset($_SERVER['HTTP_ACCEPT_ENCODING']))
{
$httpaccept_encoding = $_SERVER['HTTP_ACCEPT_ENCODING'];
}

if(my_strpos(" ".$httpaccept_encoding, "x-gzip"))
{
$encoding = "x-gzip";
}

if(my_strpos(" ".$httpaccept_encoding, "gzip"))
{
$encoding = "gzip";
}

if(isset($encoding))
{
header("Content-Encoding: $encoding");

if(function_exists("gzencode"))
{
$contents = gzencode($contents, $level);
}
else
{
$size = strlen($contents);
$crc = crc32($contents);
$gzdata = "\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff";
$gzdata .= my_substr(gzcompress($contents, $level), 2, -4);
$gzdata .= pack("V", $crc);
$gzdata .= pack("V", $size);
$contents = $gzdata;
}
}
}

return $contents;
}

/**
* Log the actions of a moderator.
*
* @param array The data of the moderator's action.
* @param string The message to enter for the action the moderator performed.
*/
function log_moderator_action($data, $action="")
{
global $mybb, $db, $session;

// If the fid or tid is not set, set it at 0 so MySQL doesn't choke on it.
if($data['fid'] == '')
{
$fid = 0;
}
else
{
$fid = $data['fid'];
unset($data['fid']);
}

if($data['tid'] == '')
{
$tid = 0;
}
else
{
$tid = $data['tid'];
unset($data['tid']);
}

// Any remaining extra data - we serialize and insert in to its own column
if(is_array($data))
{
$data = serialize($data);
}

$time = TIME_NOW;

$sql_array = array(
"uid" => $mybb->user['uid'],
"dateline" => $time,
"fid" => $fid,
"tid" => $tid,
"action" => $db->escape_string($action),
"data" => $db->escape_string($data),
"ipaddress" => $db->escape_string($session->ipaddress)
);
$db->insert_query("moderatorlog", $sql_array);
}

/**
* Get the formatted reputation for a user.
*
* @param int The reputation value
* @param int The user ID (if not specified, the generated reputation will not be a link)
* @return string The formatted repuation
*/
function get_reputation($reputation, $uid=0)
{
global $theme;

if($uid != 0)
{
$display_reputation = "<a href=\"reputation.php?uid={$uid}\">";
}

$display_reputation .= "<strong class=\"";

if($reputation < 0)
{
$display_reputation .= "reputation_negative";
}
elseif($reputation > 0)
{
$display_reputation .= "reputation_positive";
}
else
{
$display_reputation .= "reputation_neutral";
}

$display_reputation .= "\">{$reputation}</strong>";

if($uid != 0)
{
$display_reputation .= "</a>";
}

return $display_reputation;
}

/**
* Fetch a color coded version of a warning level (based on it's percentage)
*
* @param int The warning level (percentage of 100)
* @return string Formatted warning level
*/
function get_colored_warning_level($level)
{
if($level >= 80)
{
return "<span class=\"high_warning\">{$level}%</span>";
}
else if($level >= 50)
{
return "<span class=\"moderate_warning\">{$level}%</span>";
}
else if($level >= 25)
{
return "<span class=\"low_warning\">{$level}%</span>";
}
else
{
return $level."%";
}
}

/**
* Fetch the IP address of the current user.
*
* @return string The IP address.
*/
function get_ip()
{
global $mybb, $plugins;

$ip = 0;

if(!preg_match("#^(10|172\.16|192\.168)\.#", $_SERVER['REMOTE_ADDR']))
{
$ip = $_SERVER['REMOTE_ADDR'];
}

if($mybb->settings['ip_forwarded_check'])
{
if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
{
preg_match_all("#[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}#s", $_SERVER['HTTP_X_FORWARDED_FOR'], $addresses);
}
elseif(isset($_SERVER['HTTP_X_REAL_IP']))
{
preg_match_all("#[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}#s", $_SERVER['HTTP_X_REAL_IP'], $addresses);
}

if(is_array($addresses[0]))
{
foreach($addresses[0] as $key => $val)
{
if(!preg_match("#^(10|172\.16|192\.168)\.#", $val))
{
$ip = $val;
break;
}
}
}
}

if(!$ip)
{
if(isset($_SERVER['HTTP_CLIENT_IP']))
{
$ip = $_SERVER['HTTP_CLIENT_IP'];
}
}

if($plugins)
{
$plugins->run_hooks("get_ip", array("ip" => $ip));
}

return $ip;
}

/**
* Fetch the friendly size (GB, MB, KB, B) for a specified file size.
*
* @param int The size in bytes
* @return string The friendly file size
*/
function get_friendly_size($size)
{
global $lang;

if(!is_numeric($size))
{
return $lang->na;
}

// Yottabyte (1024 Zettabytes)
if($size >= 1208925819614629174706176)
{
$size = my_number_format(round(($size / 1208925819614629174706176), 2))." ".$lang->size_yb;
}
// Zetabyte (1024 Exabytes)
elseif($size >= 1180591620717411303424)
{
$size = my_number_format(round(($size / 1180591620717411303424), 2))." ".$lang->size_zb;
}
// Exabyte (1024 Petabytes)
elseif($size >= 1152921504606846976)
{
$size = my_number_format(round(($size / 1152921504606846976), 2))." ".$lang->size_eb;
}
// Petabyte (1024 Terabytes)
elseif($size >= 1125899906842624)
{
$size = my_number_format(round(($size / 1125899906842624), 2))." ".$lang->size_pb;
}
// Terabyte (1024 Gigabytes)
elseif($size >= 1099511627776)
{
$size = my_number_format(round(($size / 1099511627776), 2))." ".$lang->size_tb;
}
// Gigabyte (1024 Megabytes)
elseif($size >= 1073741824)
{
$size = my_number_format(round(($size / 1073741824), 2))." ".$lang->size_gb;
}
// Megabyte (1024 Kilobytes)
elseif($size >= 1048576)
{
$size = my_number_format(round(($size / 1048576), 2))." ".$lang->size_mb;
}
// Kilobyte (1024 bytes)
elseif($size >= 1024)
{
$size = my_number_format(round(($size / 1024), 2))." ".$lang->size_kb;
}
elseif($size == 0)
{
$size = "0 ".$lang->size_bytes;
}
else
{
$size = my_number_format($size)." ".$lang->size_bytes;
}

return $size;
}

/**
* Get the attachment icon for a specific file extension
*
* @param string The file extension
* @return string The attachment icon
*/
function get_attachment_icon($ext)
{
global $cache, $attachtypes, $theme;

if(!$attachtypes)
{
$attachtypes = $cache->read("attachtypes");
}

$ext = my_strtolower($ext);

if($attachtypes[$ext]['icon'])
{
if(defined("IN_ADMINCP"))
{
$icon = str_replace("{theme}", "", $attachtypes[$ext]['icon']);
if(my_substr($icon, 0, 1) != "/" && my_substr($icon, 0, 7) != "http://")
{
$icon = "../".$icon;
}
}
elseif(defined("IN_PORTAL"))
{
global $change_dir;
$icon = $change_dir."/".str_replace("{theme}", $theme['imgdir'], $attachtypes[$ext]['icon']);
}
else
{
$icon = str_replace("{theme}", $theme['imgdir'], $attachtypes[$ext]['icon']);
}
return "<img src=\"{$icon}\" border=\"0\" alt=\".{$ext}\" />";
}
else
{
if(defined("IN_ADMINCP"))
{
$theme['imgdir'] = "../images";
}
else if(defined("IN_PORTAL"))
{
global $change_dir;
$theme['imgdir'] = "{$change_dir}/images";
}

return "<img src=\"{$theme['imgdir']}/attachtypes/unknown.gif\" border=\"0\" alt=\".{$ext}\" />";
}
}

/**
* Get a list of the unviewable forums for the current user
*
* @param boolean Set to true to only fetch those forums for which users can actually read a thread in.
* @return string Comma separated values list of the forum IDs which the user cannot view
*/
function get_unviewable_forums($only_readable_threads=false)
{
global $forum_cache, $permissioncache, $mybb, $unviewableforums, $unviewable, $templates, $forumpass;

$pid = intval($pid);

if(!$permissions)
{
$permissions = $mybb->usergroup;
}

if(!is_array($forum_cache))
{
cache_forums();
}

if(!is_array($permissioncache))
{
$permissioncache = forum_permissions();
}

$password_forums = array();
foreach($forum_cache as $fid => $forum)
{
if($permissioncache[$forum['fid']])
{
$perms = $permissioncache[$forum['fid']];
}
else
{
$perms = $mybb->usergroup;
}

$pwverified = 1;

if($forum['password'] != "")
{
if($mybb->cookies['forumpass'][$forum['fid']] != md5($mybb->user['uid'].$forum['password']))
{
$pwverified = 0;
}

$password_forums[$forum['fid']] = $forum['password'];
}
else
{
// Check parents for passwords
$parents = explode(",", $forum['parentlist']);
foreach($parents as $parent)
{
if(isset($password_forums[$parent]) && $mybb->cookies['forumpass'][$parent] != md5($mybb->user['uid'].$password_forums[$parent]))
{
$pwverified = 0;
}
}
}

if($perms['canview'] == 0 || $pwverified == 0 || ($only_readable_threads == true && $perms['canviewthreads'] == 0))
{
if($unviewableforums)
{
$unviewableforums .= ",";
}

$unviewableforums .= "'".$forum['fid']."'";
}
}

return $unviewableforums;
}

/**
* Fixes mktime for dates earlier than 1970
*
* @param string The date format to use
* @param int The year of the date
* @return string The correct date format
*/
function fix_mktime($format, $year)
{
// Our little work around for the date < 1970 thing.
// -2 idea provided by Matt Light (http://www.mephex.com)
$format = str_replace("Y", $year, $format);
$format = str_replace("y", my_substr($year, -2), $format);

return $format;
}

/**
* Build the breadcrumb navigation trail from the specified items
*
* @return The formatted breadcrumb navigation trail
*/
function build_breadcrumb()
{
global $nav, $navbits, $templates, $theme, $lang, $mybb;

eval("\$navsep = \"".$templates->get("nav_sep")."\";");

$i = 0;

if(is_array($navbits))
{
reset($navbits);
foreach($navbits as $key => $navbit)
{
if(isset($navbits[$key+1]))
{
if(isset($navbits[$key+2]))
{
$sep = $navsep;
}
else
{
$sep = "";
}

$multipage = null;
$multipage_dropdown = null;
if(!empty($navbit['multipage']))
{
$multipage = multipage($navbit['multipage']['num_threads'], $mybb->settings['threadsperpage'], $navbit['multipage']['current_page'], $navbit['multipage']['url'], true);
if($multipage)
{
++$i;
$multipage_dropdown = " <img src=\"{$theme['imgdir']}/arrow_down.gif\" alt=\"v\" title=\"\" class=\"pagination_breadcrumb_link\" id=\"breadcrumb_multipage\" />{$multipage}";
$sep = $multipage_dropdown.$sep;
}
}

// Replace page 1 URLs
$navbit['url'] = str_replace("-page-1.html", ".html", $navbit['url']);
$navbit['url'] = preg_replace("/&amp;page=1$/", "", $navbit['url']);

eval("\$nav .= \"".$templates->get("nav_bit")."\";");
}
}
}

$navsize = count($navbits);
$navbit = $navbits[$navsize-1];

if($nav)
{
eval("\$activesep = \"".$templates->get("nav_sep_active")."\";");
}

eval("\$activebit = \"".$templates->get("nav_bit_active")."\";");
eval("\$donenav = \"".$templates->get("nav")."\";");

return $donenav;
}

/**
* Add a breadcrumb menu item to the list.
*
* @param string The name of the item to add
* @param string The URL of the item to add
*/
function add_breadcrumb($name, $url="")
{
global $navbits;

$navsize = count($navbits);
$navbits[$navsize]['name'] = $name;
$navbits[$navsize]['url'] = $url;
}

/**
* Build the forum breadcrumb nagiation (the navigation to a specific forum including all parent forums)
*
* @param int The forum ID to build the navigation for
* @param array The multipage drop down array of information
*/
function build_forum_breadcrumb($fid, $multipage=array())
{
global $pforumcache, $currentitem, $forum_cache, $navbits, $lang, $base_url, $archiveurl;

if(!$pforumcache)
{
if(!is_array($forum_cache))
{
cache_forums();
}

foreach($forum_cache as $key => $val)
{
$pforumcache[$val['fid']][$val['pid']] = $val;
}
}

if(is_array($pforumcache[$fid]))
{
foreach($pforumcache[$fid] as $key => $forumnav)
{
if($fid == $forumnav['fid'])
{
if($pforumcache[$forumnav['pid']])
{
build_forum_breadcrumb($forumnav['pid']);
}

$navsize = count($navbits);
// Convert & to &amp;
$navbits[$navsize]['name'] = preg_replace("#&(?!\#[0-9]+Wink#si", "&amp;", $forumnav['name']);

if(IN_ARCHIVE == 1)
{
// Set up link to forum in breadcrumb.
if($pforumcache[$fid][$forumnav['pid']]['type'] == 'f' || $pforumcache[$fid][$forumnav['pid']]['type'] == 'c')
{
$navbits[$navsize]['url'] = "{$base_url}forum-".$forumnav['fid'].".html";
}
else
{
$navbits[$navsize]['url'] = $archiveurl."/index.php";
}
}
elseif(!empty($multipage))
{
$navbits[$navsize]['url'] = get_forum_link($forumnav['fid'], $multipage['current_page']);

$navbits[$navsize]['multipage'] = $multipage;
$navbits[$navsize]['multipage']['url'] = str_replace('{fid}', $forumnav['fid'], FORUM_URL_PAGED);
}
else
{
$navbits[$navsize]['url'] = get_forum_link($forumnav['fid']);
}
}
}
}

return 1;
}

/**
* Resets the breadcrumb navigation to the first item, and clears the rest
*/
function reset_breadcrumb()
{
global $navbits;

$newnav[0]['name'] = $navbits[0]['name'];
$newnav[0]['url'] = $navbits[0]['url'];
$newnav[0]['options'] = $navbits[0]['options'];

unset($GLOBALS['navbits']);
$GLOBALS['navbits'] = $newnav;
}

/**
* Builds a URL to an archive mode page
*
* @param string The type of page (thread|announcement|forum)
* @param int The ID of the item
* @return string The URL
*/
function build_archive_link($type, $id="")
{
global $mybb;

// If the server OS is not Windows and not Apache or the PHP is running as a CGI or we have defined ARCHIVE_QUERY_STRINGS, use query strings - DIRECTORY_SEPARATOR checks if running windows
if((DIRECTORY_SEPARATOR == '\\' && is_numeric(stripos($_SERVER['SERVER_SOFTWARE'], "apache")) == false) || is_numeric(stripos(SAPI_NAME, "cgi")) !== false || defined("ARCHIVE_QUERY_STRINGS"))
{
$base_url = $mybb->settings['bburl']."/archive/index.php?";
}
else
{
$base_url = $mybb->settings['bburl']."/archive/index.php/";
}

switch($type)
{
case "thread":
$url = "{$base_url}thread-{$id}.html";
break;
case "announcement":
$url = "{$base_url}announcement-{$id}.html";
break;
case "forum":
$url = "{$base_url}forum-{$id}.html";
break;
default:
$url = $mybb->settings['bburl']."/archive/index.php";
}

return $url;
}

/**
* Prints a debug information page
*/
function debug_page()
{
global $db, $debug, $templates, $templatelist, $mybb, $maintimer, $globaltime, $ptimer, $parsetime;

$totaltime = $maintimer->totaltime;
$phptime = $maintimer->format($maintimer->totaltime - $db->query_time);
$query_time = $maintimer->format($db->query_time);

$percentphp = number_format((($phptime/$maintimer->totaltime)*100), 2);
$percentsql = number_format((($query_time/$maintimer->totaltime)*100), 2);

$phpversion = PHP_VERSION;

$serverload = get_server_load();

if($mybb->settings['gzipoutput'] != 0)
{
$gzipen = "Enabled";
}
else
{
$gzipen = "Disabled";
}

echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
echo "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
echo "<head>";
echo "<title>MyBB Debug Information</title>";
echo "</head>";
echo "<body>";
echo "<h1>MyBB Debug Information</h1>\n";
echo "<h2>Page Generation</h2>\n";
echo "<table bgcolor=\"#666666\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td bgcolor=\"#CCCCCC\" colspan=\"4\"><b><span style=\"size:2;\">Page Generation Statistics</span></b></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Page Generation Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$totaltime seconds</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">No. DB Queries:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$db->query_count</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">PHP Processing Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$phptime seconds ($percentphp%)</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">DB Processing Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$query_time seconds ($percentsql%)</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Extensions Used:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">{$mybb->config['database']['type']}, xml</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Global.php Processing Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$globaltime seconds</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">PHP Version:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$phpversion</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Server Load:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$serverload</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">GZip Encoding Status:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$gzipen</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">No. Templates Used:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">".count($templates->cache)." (".intval(count(explode(",", $templatelist)))." Cached / ".intval(count($templates->uncached_templates))." Manually Loaded)</font></td>\n";
echo "</tr>\n";

if(function_exists("memory_get_usage"))
{
$memory_usage = memory_get_peak_usage(true);
$memory_limit = @ini_get("memory_limit");
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Memory Usage:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">".get_friendly_size($memory_usage)." ({$memory_usage} bytes)</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Memory Limit:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">{$memory_limit}</font></td>\n";
echo "</tr>\n";
}

echo "</table>\n";

echo "<h2>Database Connections (".count($db->connections)." Total) </h2>\n";
echo "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td style=\"background: #fff;\">".implode("<br />", $db->connections)."</td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<br />\n";

echo "<h2>Database Queries (".$db->query_count." Total) </h2>\n";
echo $db->explain;
echo "<h2>Template Statistics</h2>\n";

if(count($templates->cache) > 0)
{
echo "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td style=\"background-color: #ccc;\"><strong>Templates Used (Loaded for this Page) - ".count($templates->cache)." Total</strong></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td style=\"background: #fff;\">".implode(", ", array_keys($templates->cache))."</td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<br />\n";
}

if(count($templates->uncached_templates > 0))
{
echo "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td style=\"background-color: #ccc;\"><strong>Templates Requiring Additional Calls (Not Cached at Startup) - ".count($templates->uncached_templates)." Total</strong></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td style=\"background: #fff;\">".implode(", ", $templates->uncached_templates)."</td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<br />\n";
}
echo "</body>";
echo "</html>";
exit;
}

/**
* Outputs the correct page headers.
*/
function send_page_headers()
{
global $mybb;

if($mybb->settings['nocacheheaders'] == 1)
{
header("Expires: Sat, 1 Jan 2000 01:00:00 GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
}
}

/**
* Mark specific reported posts of a certain type as dealt with
*
* @param mixed An array or int of the ID numbers you're marking as dealt with
* @param string The type of item the above IDs are for - post, posts, thread, threads, forum, all
*/
function mark_reports($id, $type="post")
{
global $db, $cache, $plugins;

switch($type)
{
case "posts":
if(is_array($id))
{
$rids = implode($id, "','");
$rids = "'0','$rids'";
$db->update_query("reportedposts", array('reportstatus' => 1), "pid IN($rids) AND reportstatus='0'");
}
break;
case "post":
$db->update_query("reportedposts", array('reportstatus' => 1), "pid='$id' AND reportstatus='0'");
break;
case "threads":
if(is_array($id))
{
$rids = implode($id, "','");
$rids = "'0','$rids'";
$db->update_query("reportedposts", array('reportstatus' => 1), "tid IN($rids) AND reportstatus='0'");
}
break;
case "thread":
$db->update_query("reportedposts", array('reportstatus' => 1), "tid='$id' AND reportstatus='0'");
break;
case "forum":
$db->update_query("reportedposts", array('reportstatus' => 1), "fid='$id' AND reportstatus='0'");
break;
case "all":
$db->update_query("reportedposts", array('reportstatus' => 1), "reportstatus='0'");
break;
}

$arguments = array('id' => $id, 'type' => $type);
$plugins->run_hooks("mark_reports", $arguments);
$cache->update_reportedposts();
}

/**
* Fetch a friendly x days, y months etc date stamp from a timestamp
*
* @param int The timestamp
* @param array Array of options
* @return string The friendly formatted timestamp
*/
function nice_time($stamp, $options=array())
{
global $lang;

$ysecs = 365*24*60*60;
$mosecs = 31*24*60*60;
$wsecs = 7*24*60*60;
$dsecs = 24*60*60;
$hsecs = 60*60;
$msecs = 60;

if($options['short'] == true)
{
$lang_year = $lang->year_short;
$lang_years = $lang->years_short;
$lang_month = $lang->month_short;
$lang_months = $lang->months_short;
$lang_week = $lang->week_short;
$lang_weeks = $lang->weeks_short;
$lang_day = $lang->day_short;
$lang_days = $lang->days_short;
$lang_hour = $lang->hour_short;
$lang_hours = $lang->hours_short;
$lang_minute = $lang->minute_short;
$lang_minutes = $lang->minutes_short;
$lang_second = $lang->second_short;
$lang_seconds = $lang->seconds_short;
}
else
{
$lang_year = " ".$lang->year;
$lang_years = " ".$lang->years;
$lang_month = " ".$lang->month;
$lang_months = " ".$lang->months;
$lang_week = " ".$lang->week;
$lang_weeks = " ".$lang->weeks;
$lang_day = " ".$lang->day;
$lang_days = " ".$lang->days;
$lang_hour = " ".$lang->hour;
$lang_hours = " ".$lang->hours;
$lang_minute = " ".$lang->minute;
$lang_minutes = " ".$lang->minutes;
$lang_second = " ".$lang->second;
$lang_seconds = " ".$lang->seconds;
}

$years = floor($stamp/$ysecs);
$stamp %= $ysecs;
$months = floor($stamp/$mosecs);
$stamp %= $mosecs;
$weeks = floor($stamp/$wsecs);
$stamp %= $wsecs;
$days = floor($stamp/$dsecs);
$stamp %= $dsecs;
$hours = floor($stamp/$hsecs);
$stamp %= $hsecs;
$minutes = floor($stamp/$msecs);
$stamp %= $msecs;
$seconds = $stamp;

if($years == 1)
{
$nicetime['years'] = "1".$lang_year;
}
else if($years > 1)
{
$nicetime['years'] = $years.$lang_years;
}

if($months == 1)
{
$nicetime['months'] = "1".$lang_month;
}
else if($months > 1)
{
$nicetime['months'] = $months.$lang_months;
}

if($weeks == 1)
{
$nicetime['weeks'] = "1".$lang_week;
}
else if($weeks > 1)
{
$nicetime['weeks'] = $weeks.$lang_weeks;
}

if($days == 1)
{
$nicetime['days'] = "1".$lang_day;
}
else if($days > 1)
{
$nicetime['days'] = $days.$lang_days;
}

if($options['hours'] !== false)
{
if($hours == 1)
{
$nicetime['hours'] = "1".$lang_hour;
}
else if($hours > 1)
{
$nicetime['hours'] = $hours.$lang_hours;
}
}

if($options['minutes'] !== false)
{
if($minutes == 1)
{
$nicetime['minutes'] = "1".$lang_minute;
}
else if($minutes > 1)
{
$nicetime['minutes'] = $minutes.$lang_minutes;
}
}

if($options['seconds'] !== false)
{
if($seconds == 1)
{
$nicetime['seconds'] = "1".$lang_second;
}
else if($seconds > 1)
{
$nicetime['seconds'] = $seconds.$lang_seconds;
}
}

if(is_array($nicetime))
{
return implode(", ", $nicetime);
}
}

/**
* Select an alternating row colour based on the previous call to this function
*
* @param int 1 to reset the row to trow1.
* @return string trow1 or trow2 depending on the previous call
*/
function alt_trow($reset=0)
{
global $alttrow;

if($alttrow == "trow1" && !$reset)
{
$trow = "trow2";
}
else
{
$trow = "trow1";
}

$alttrow = $trow;

return $trow;
}

/**
* Add a user to a specific additional user group.
*
* @param int The user ID
* @param int The user group ID to join
*/
function join_usergroup($uid, $joingroup)
{
global $db, $mybb;

if($uid == $mybb->user['uid'])
{
$user = $mybb->user;
}
else
{
$query = $db->simple_select("users", "additionalgroups, usergroup", "uid='".intval($uid)."'");
$user = $db->fetch_array($query);
}

// Build the new list of additional groups for this user and make sure they're in the right format
$usergroups = "";
$usergroups = $user['additionalgroups'].",".$joingroup;
$groupslist = "";
$groups = explode(",", $usergroups);

if(is_array($groups))
{
foreach($groups as $gid)
{
if(trim($gid) != "" && $gid != $user['usergroup'] && !$donegroup[$gid])
{
$groupslist .= $comma.$gid;
$comma = ",";
$donegroup[$gid] = 1;
}
}
}

// What's the point in updating if they're the same?
if($groupslist != $user['additionalgroups'])
{
$db->update_query("users", array('additionalgroups' => $groupslist), "uid='".intval($uid)."'");
return true;
}
else
{
return false;
}
}

/**
* Remove a user from a specific additional user group
*
* @param int The user ID
* @param int The user group ID
*/
function leave_usergroup($uid, $leavegroup)
{
global $db, $mybb, $cache;

if($uid == $mybb->user['uid'])
{
$user = $mybb->user;
}
else
{
$query = $db->simple_select("users", "*", "uid='".intval($uid)."'");
$user = $db->fetch_array($query);
}

$groupslist = "";
$usergroups = "";
$usergroups = $user['additionalgroups'].",";

$groups = explode(",", $user['additionalgroups']);

if(is_array($groups))
{
foreach($groups as $gid)
{
if(trim($gid) != "" && $leavegroup != $gid && !$donegroup[$gid])
{
$groupslist .= $comma.$gid;
$comma = ",";
$donegroup[$gid] = 1;
}
}
}

$dispupdate = "";
if($leavegroup == $user['displaygroup'])
{
$dispupdate = ", displaygroup=usergroup";
}

$db->write_query("
UPDATE ".TABLE_PREFIX."users
SET additionalgroups='$groupslist' $dispupdate
WHERE uid='".intval($uid)."'
");

$cache->update_moderators();
}

/**
* Get the current location taking in to account different web serves and systems
*
* @param boolean True to return as "hidden" fields
* @param array Array of fields to ignore if first argument is true
* @return string The current URL being accessed
*/
function get_current_location($fields=false, $ignore=array())
{
if(defined("MYBB_LOCATION"))
{
return MYBB_LOCATION;
}

if(!empty($_SERVER['PATH_INFO']))
{
$location = htmlspecialchars_uni($_SERVER['PATH_INFO']);
}
elseif(!empty($_ENV['PATH_INFO']))
{
$location = htmlspecialchars_uni($_ENV['PATH_INFO']);
}
elseif(!empty($_ENV['PHP_SELF']))
{
$location = htmlspecialchars_uni($_ENV['PHP_SELF']);
}
else
{
$location = htmlspecialchars_uni($_SERVER['PHP_SELF']);
}

if($fields == true)
{
global $mybb;

if(!is_array($ignore))
{
$ignore = array($ignore);
}

$form_html = "";
$field_parts = explode('&', $field_parts);

if(!empty($mybb->input))
{
foreach($mybb->input as $name => $value)
{
if(in_array($name, $ignore))
{
continue;
}

$form_html .= "<input type=\"hidden\" name=\"".htmlspecialchars((string)$name)."\" value=\"".htmlspecialchars((string)$value)."\" />\n";
}
}

return array('location' => $location, 'form_html' => $form_html, 'form_method' => $mybb->request_method);
}
else
{
if(isset($_SERVER['QUERY_STRING']))
{
$location .= "?".htmlspecialchars_uni($_SERVER['QUERY_STRING']);
}
else if(isset($_ENV['QUERY_STRING']))
{
$location .= "?".htmlspecialchars_uni($_ENV['QUERY_STRING']);
}

if((isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == "POST") || (isset($_ENV['REQUEST_METHOD']) && $_ENV['REQUEST_METHOD'] == "POST"))
{
$post_array = array('action', 'fid', 'pid', 'tid', 'uid', 'eid');

foreach($post_array as $var)
{
if(isset($_POST[$var]))
{
$addloc[] = urlencode($var).'='.urlencode($_POST[$var]);
}
}

if(isset($addloc) && is_array($addloc))
{
if(strpos($location, "?") === false)
{
$location .= "?";
}
else
{
$location .= "&amp;";
}
$location .= implode("&amp;", $addloc);
}
}

if(strlen($location) > 150)
{
$location = substr($location, 0, 150);
}

return $location;
}
}

/**
* Build a theme selection menu
*
* @param string The name of the menu
* @param int The ID of the selected theme
* @param int The ID of the parent theme to select from
* @param int The current selection depth
* @param boolean Whether or not to override usergroup permissions (true to override)
* @return string The theme selection list
*/
function build_theme_select($name, $selected="", $tid=0, $depth="", $usergroup_override=false)
{
global $db, $themeselect, $tcache, $lang, $mybb, $limit;

if($tid == 0)
{
$themeselect = "<select name=\"$name\">";
$themeselect .= "<option value=\"0\">".$lang->use_default."</option>\n";
$themeselect .= "<option value=\"0\">-----------</option>\n";
$tid = 1;
}

if(!is_array($tcache))
{
$query = $db->simple_select("themes", "name, pid, tid, allowedgroups", "pid != '0'", array('order_by' => 'pid, name'));

while($theme = $db->fetch_array($query))
{
$tcache[$theme['pid']][$theme['tid']] = $theme;
}
}

if(is_array($tcache[$tid]))
{
// Figure out what groups this user is in
if($mybb->user['additionalgroups'])
{
$in_groups = explode(",", $mybb->user['additionalgroups']);
}
$in_groups[] = $mybb->user['usergroup'];

foreach($tcache[$tid] as $theme)
{
$sel = "";
// Make theme allowed groups into array
$is_allowed = false;
if($theme['allowedgroups'] != "all")
{
$allowed_groups = explode(",", $theme['allowedgroups']);
// See if groups user is in is allowed
foreach($allowed_groups as $agid)
{
if(in_array($agid, $in_groups))
{
$is_allowed = true;
break;
}
}
}

// Show theme if allowed, or if override is on
if($is_allowed || $theme['allowedgroups'] == "all" || $usergroup_override == true)
{
if($theme['tid'] == $selected)
{
$sel = " selected=\"selected\"";
}

if($theme['pid'] != 0)
{
$themeselect .= "<option value=\"".$theme['tid']."\"$sel>".$depth.$theme['name']."</option>";
$depthit = $depth."--";
}

if(array_key_exists($theme['tid'], $tcache))
{
build_theme_select($name, $selected, $theme['tid'], $depthit, $usergroup_override);
}
}
}
}

if($tid == 1)
{
$themeselect .= "</select>";
}

return $themeselect;
}

/**
* Custom function for htmlspecialchars which takes in to account unicode
*
* @param string The string to format
* @return string The string with htmlspecialchars applied
*/
function htmlspecialchars_uni($message)
{
$message = preg_replace("#&(?!\#[0-9]+Wink#si", "&amp;", $message); // Fix & but allow unicode
$message = str_replace("<", "&lt;", $message);
$message = str_replace(">", "&gt;", $message);
$message = str_replace("\"", "&quot;", $message);
return $message;
}

/**
* Custom function for formatting numbers.
*
* @param int The number to format.
* @return int The formatted number.
*/
function my_number_format($number)
{
global $mybb;

if($number == "-")
{
return $number;
}

if(is_int($number))
{
return number_format($number, 0, $mybb->settings['decpoint'], $mybb->settings['thousandssep']);
}
else
{
$parts = explode('.', $number);

if(isset($parts[1]))
{
$decimals = my_strlen($parts[1]);
}
else
{
$decimals = 0;
}

return number_format((double)$number, $decimals, $mybb->settings['decpoint'], $mybb->settings['thousandssep']);
}
}

function convert_through_utf8($str, $to=true)
{
global $lang;
static $charset;
static $use_mb;
static $use_iconv;

if(!isset($charset))
{
$charset = my_strtolower($lang->settings['charset']);
}

if($charset == "utf-8")
{
return $str;
}

if(!isset($use_iconv))
{
$use_iconv = function_exists("iconv");
}

if(!isset($use_mb))
{
$use_mb = function_exists("mb_convert_encoding");
}

if($use_iconv || $use_mb)
{
if($to)
{
$from_charset = $lang->settings['charset'];
$to_charset = "UTF-8";
}
else
{
$from_charset = "UTF-8";
$to_charset = $lang->settings['charset'];
}
if($use_iconv)
{
return iconv($from_charset, $to_charset."//IGNORE", $str);
}
else
{
return @mb_convert_encoding($str, $to_charset, $from_charset);
}
}
elseif($charset == "iso-8859-1" && function_exists("utf8_encode"))
{
if($to)
{
return utf8_encode($str);
}
else
{
return utf8_decode($str);
}
}
else
{
return $str;
}
}

/**
* Replacement function for PHP's wordwrap(). This version does not break up HTML tags, URLs or unicode references.
*
* @param string The string to be word wrapped
* @return string The word wraped string
*/
function my_wordwrap($message)
{
global $mybb;

if($mybb->settings['wordwrap'] > 0)
{
$message = convert_through_utf8($message);

if(!($new_message = @preg_replace("#(((?>[^\s&/<>\"\\-\[\]])|(&\#[a-z0-9]{1,10}Wink){{$mybb->settings['wordwrap']}})#u", "$0​", $message)))
{
$new_message = preg_replace("#(((?>[^\s&/<>\"\\-\[\]])|(&\#[a-z0-9]{1,10}Wink){{$mybb->settings['wordwrap']}})#", "$0​", $message);
}

$new_message = convert_through_utf8($new_message, false);

return $new_message;
}

return $message;
}

/**
* Workaround for date limitation in PHP to establish the day of a birthday (Provided by meme)
*
* @param int The month of the birthday
* @param int The day of the birthday
* @param int The year of the bithday
* @return int The numeric day of the week for the birthday
*/
function get_weekday($month, $day, $year)
{
$h = 4;

for($i = 1969; $i >= $year; $i--)
{
$j = get_bdays($i);

for($k = 11; $k >= 0; $k--)
{
$l = ($k + 1);

for($m = $j[$k]; $m >= 1; $m--)
{
$h--;

if($i == $year && $l == $month && $m == $day)
{
return $h;
}

if($h == 0)
{
$h = 7;
}
}
}
}
}

/**
* Workaround for date limitation in PHP to establish the day of a birthday (Provided by meme)
*
* @param int The year.
* @return array The number of days in each month of that year
*/
function get_bdays($in)
{
return array(
31,
($in % 4 == 0 && ($in % 100 > 0 || $in % 400 == 0) ? 29 : 28),
31,
30,
31,
30,
31,
31,
30,
31,
30,
31
);
}

/**
* Formats a birthday appropriately
*
* @param string The PHP date format string
* @param int The month of the birthday
* @param int The day of the birthday
* @param int The year of the birthday
* @param int The weekday of the birthday
* @return string The formatted birthday
*/
function format_bdays($display, $bm, $bd, $by, $wd)
{
global $lang;

$bdays = array(
$lang->sunday,
$lang->monday,
$lang->tuesday,
$lang->wednesday,
$lang->thursday,
$lang->friday,
$lang->saturday
);

$bmonth = array(
$lang->month_1,
$lang->month_2,
$lang->month_3,
$lang->month_4,
$lang->month_5,
$lang->month_6,
$lang->month_7,
$lang->month_8,
$lang->month_9,
$lang->month_10,
$lang->month_11,
$lang->month_12
);


// This needs to be in this specific order
$find = array(
'm',
'd',
'D',
'y',
'Y',
'j',
'S',
'F',
'l',
'M',
);

$html = array(
'm',
'c',
'D',
'y',
'Y',
'j',
'S',
'F',
'l',
'M',
);

$bdays = str_replace($find, $html, $bdays);
$bmonth = str_replace($find, $html, $bmonth);

$replace = array(
sprintf('%02s', $bm),
sprintf('%02s', $bd),
($wd == 2 ? my_substr($bdays[$wd], 0, 4) : ($wd == 4 ? my_substr($bdays[$wd], 0, 5) : my_substr($bdays[$wd], 0, 3))),
my_substr($by, 2),
$by,
($bd[0] == 0 ? my_substr($bd, 1) : $bd),
($bd == 1 || $bd == 21 || $bd == 31 ? 'st' : ($bd == 2 || $bd == 22 ? 'nd' : ($bd == 3 || $bd == 23 ? 'rd' : 'th'))),
$bmonth[$bm-1],
$wd,
($bm == 9 ? my_substr($bmonth[$bm-1], 0, 4) : my_substr($bmonth[$bm-1], 0, 3)),
);

// Do we have the full month in our output?
// If so there's no need for the short month
if(strpos($display, 'F') !== false)
{
array_pop($find);
array_pop($replace);
}

return str_replace($find, $replace, $display);
}

/**
* Returns the age of a user with specified birthday.
*
* @param string The birthday of a user.
* @return float The age of a user with that birthday.
*/
function get_age($birthday)
{
$bday = explode("-", $birthday);
if(!$bday[2])
{
return;
}

list($day, $month, $year) = explode("-", my_date("j-n-Y", TIME_NOW, 0, 0));

$age = $year-$bday[2];

if(($month == $bday[1] && $day < $bday[0]) || $month < $bday[1])
{
--$age;
}
return $age;
}

/**
* Updates the first posts in a thread.
*
* @param int The thread id for which to update the first post id.
*/
function update_first_post($tid)
{
global $db;

$query = $db->simple_select("posts", "pid,replyto", "tid='{$tid}'", array('order_by' => 'dateline', 'limit' => 1));
$post = $db->fetch_array($query);

if($post['replyto'] != 0)
{
$replyto_update = array(
"replyto" => 0
);
$db->update_query("posts", $replyto_update, "pid='{$post['pid']}'");
}

$firstpostup = array(
"firstpost" => $post['pid']
);
$db->update_query("threads", $firstpostup, "tid='$tid'");
}

/**
* Checks for the length of a string, mb strings accounted for
*
* @param string The string to check the length of.
* @return int The length of the string.
*/
function my_strlen($string)
{
global $lang;

$string = preg_replace("#&\#([0-9]+);#", "-", $string);

if(strtolower($lang->settings['charset']) == "utf-8")
{
// Get rid of any excess RTL and LTR override for they are the workings of the devil
$string = str_replace(dec_to_utf8(8238), "", $string);
$string = str_replace(dec_to_utf8(8237), "", $string);

// Remove dodgy whitespaces
$string = str_replace(chr(0xCA), "", $string);
}
$string = trim($string);

if(function_exists("mb_strlen"))
{
$string_length = mb_strlen($string);
}
else
{
$string_length = strlen($string);
}

return $string_length;
}

/**
* Cuts a string at a specified point, mb strings accounted for
*
* @param string The string to cut.
* @param int Where to cut
* @param int (optional) How much to cut
* @param bool (optional) Properly handle HTML entities?
* @return int The cut part of the string.
*/
function my_substr($string, $start, $length="", $handle_entities = false)
{
if($handle_entities)
{
$string = unhtmlentities($string);
}
if(function_exists("mb_substr"))
{
if($length != "")
{
$cut_string = mb_substr($string, $start, $length);
}
else
{
$cut_string = mb_substr($string, $start);
}
}
else
{
if($length != "")
{
$cut_string = substr($string, $start, $length);
}
else
{
$cut_string = substr($string, $start);
}
}

if($handle_entities)
{
$cut_string = htmlspecialchars_uni($cut_string);
}
return $cut_string;
}

/**
* lowers the case of a string, mb strings accounted for
*
* @param string The string to lower.
* @return int The lowered string.
*/
function my_strtolower($string)
{
if(function_exists("mb_strtolower"))
{
$string = mb_strtolower($string);
}
else
{
$string = strtolower($string);
}

return $string;
}

/**
* Finds a needle in a haystack and returns it position, mb strings accounted for
*
* @param string String to look in (haystack)
* @param string What to look for (needle)
* @param int (optional) How much to offset
* @return int false on needle not found, integer position if found
*/
function my_strpos($haystack, $needle, $offset=0)
{
if($needle == '')
{
return false;
}

if(function_exists("mb_strpos"))
{
$position = mb_strpos($haystack, $needle, $offset);
}
else
{
$position = strpos($haystack, $needle, $offset);
}

return $position;
}

/**
* ups the case of a string, mb strings accounted for
*
* @param string The string to up.
* @return int The uped string.
*/
function my_strtoupper($string)
{
if(function_exists("mb_strtoupper"))
{
$string = mb_strtoupper($string);
}
else
{
$string = strtoupper($string);
}

return $string;
}

/**
* Returns any html entities to their original character
*
* @param string The string to un-htmlentitize.
* @return int The un-htmlentitied' string.
*/
function unhtmlentities($string)
{
// Replace numeric entities
$string = preg_replace('~&#x([0-9a-f]+);~ei', 'unichr(hexdec("\\1"))', $string);
$string = preg_replace('~&#([0-9]+);~e', 'unichr("\\1")', $string);

// Replace literal entities
$trans_tbl = get_html_translation_table(HTML_ENTITIES);
$trans_tbl = array_flip($trans_tbl);

return strtr($string, $trans_tbl);
}

/**
* Returns any ascii to it's character (utf-8 safe).
*
* @param string The ascii to characterize.
* @return int The characterized ascii.
*/
function unichr($c)
{
if($c <= 0x7F)
{
return chr($c);
}
else if($c <= 0x7FF)
{
return chr(0xC0 | $c >> 6) . chr(0x80 | $c & 0x3F);
}
else if($c <= 0xFFFF)
{
return chr(0xE0 | $c >> 12) . chr(0x80 | $c >> 6 & 0x3F)
. chr(0x80 | $c & 0x3F);
}
else if($c <= 0x10FFFF)
{
return chr(0xF0 | $c >> 18) . chr(0x80 | $c >> 12 & 0x3F)
. chr(0x80 | $c >> 6 & 0x3F)
. chr(0x80 | $c & 0x3F);
}
else
{
return false;
}
}

/**
* Get the event poster.
*
* @param array The event data array.
* @return string The link to the event poster.
*/
function get_event_poster($event)
{
$event['username'] = format_name($event['username'], $event['usergroup'], $event['displaygroup']);
$event_poster = build_profile_link($event['username'], $event['author']);
return $event_poster;
}

/**
* Get the event date.
*
* @param array The event data array.
* @return string The event date.
*/
function get_event_date($event)
{
global $mybb;

$event_date = explode("-", $event['date']);
$event_date = mktime(0, 0, 0, $event_date[1], $event_date[0], $event_date[2]);
$event_date = my_date($mybb->settings['dateformat'], $event_date);

return $event_date;
}

/**
* Get the profile link.
*
* @param int The user id of the profile.
* @return string The url to the profile.
*/
function get_profile_link($uid=0)
{
$link = str_replace("{uid}", $uid, PROFILE_URL);
return htmlspecialchars_uni($link);
}

/**
* Get the announcement link.
*
* @param int The announement id of the announcement.
* @return string The url to the announcement.
*/
function get_announcement_link($aid=0)
{
$link = str_replace("{aid}", $aid, ANNOUNCEMENT_URL);
return htmlspecialchars_uni($link);
}

/**
* Build the profile link.
*
* @param string The Username of the profile.
* @param int The user id of the profile.
* @param string The target frame
* @param string Any onclick javascript.
* @return string The complete profile link.
*/
function build_profile_link($username="", $uid=0, $target="", $onclick="")
{
global $mybb, $lang;

if(!$username && $uid == 0)
{
// Return Guest phrase for no UID, no guest nickname
return $lang->guest;
}
elseif($uid == 0)
{
// Return the guest's nickname if user is a guest but has a nickname
return $username;
}
else
{
// Build the profile link for the registered user
if(!empty($target))
{
$target = " target=\"{$target}\"";
}

if(!empty($onclick))
{
$onclick = " onclick=\"{$onclick}\"";
}

return "<a href=\"{$mybb->settings['bburl']}/".get_profile_link($uid)."\"{$target}{$onclick}>{$username}</a>";
}
}

/**
* Build the forum link.
*
* @param int The forum id of the forum.
* @param int (Optional) The page number of the forum.
* @return string The url to the forum.
*/
function get_forum_link($fid, $page=0)
{
if($page > 0)
{
$link = str_replace("{fid}", $fid, FORUM_URL_PAGED);
$link = str_replace("{page}", $page, $link);
return htmlspecialchars_uni($link);
}
else
{
$link = str_replace("{fid}", $fid, FORUM_URL);
return htmlspecialchars_uni($link);
}
}

/**
* Build the thread link.
*
* @param int The thread id of the thread.
* @param int (Optional) The page number of the thread.
* @param string (Optional) The action we're performing (ex, lastpost, newpost, etc)
* @return string The url to the thread.
*/
function get_thread_link($tid, $page=0, $action='')
{
if($page > 1)
{
if($action)
{
$link = THREAD_URL_ACTION;
$link = str_replace("{action}", $action, $link);
}
else
{
$link = THREAD_URL_PAGED;
}
$link = str_replace("{tid}", $tid, $link);
$link = str_replace("{page}", $page, $link);
return htmlspecialchars_uni($link);
}
else
{
if($action)
{
$link = THREAD_URL_ACTION;
$link = str_replace("{action}", $action, $link);
}
else
{
$link = THREAD_URL;
}
$link = str_replace("{tid}", $tid, $link);
return htmlspecialchars_uni($link);
}
}

/**
* Build the post link.
*
* @param int The post ID of the post
* @param int The thread id of the post.
*/
function get_post_link($pid, $tid=0)
{
if($tid > 0)
{
$link = str_replace("{tid}", $tid, THREAD_URL_POST);
$link = str_replace("{pid}", $pid, $link);
return htmlspecialchars_uni($link);
}
else
{
$link = str_replace("{pid}", $pid, POST_URL);
return htmlspecialchars_uni($link);
}
}

/**
* Build the event link.
*
* @param int The event ID of the event
* @return string The URL of the event
*/
function get_event_link($eid)
{
$link = str_replace("{eid}", $eid, EVENT_URL);
return htmlspecialchars_uni($link);
}

/**
* Build the link to a specified date on the calendar
*
* @param int The ID of the calendar
* @param int The year
* @param int The month
* @param int The day (optional)
* @return string The URL of the calendar
*/
function get_calendar_link($calendar, $year=0, $month=0, $day=0)
{
if($day > 0)
{
$link = str_replace("{month}", $month, CALENDAR_URL_DAY);
$link = str_replace("{year}", $year, $link);
$link = str_replace("{day}", $day, $link);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}
else if($month > 0)
{
$link = str_replace("{month}", $month, CALENDAR_URL_MONTH);
$link = str_replace("{year}", $year, $link);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}
else if($year > 0)
{
$link = str_replace("{year}", $year, CALENDAR_URL_YEAR);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}
else
{
$link = str_replace("{calendar}", $calendar, CALENDAR_URL);
return htmlspecialchars_uni($link);
}
}

/**
* Build the link to a specified week on the calendar
*
* @param int The ID of the calendar
* @param int The year
* @param int The week
* @return string The URL of the calendar
*/
function get_calendar_week_link($calendar, $week)
{
if($week < 0)
{
$week = str_replace('-', "n", $week);
}
$link = str_replace("{week}", $week, CALENDAR_URL_WEEK);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}

/**
* Get the user data of a user id.
*
* @param int The user id of the user.
* @return array The users data
*/
function get_user($uid)
{
global $mybb, $db;
static $user_cache;

$uid = intval($uid);

if($uid == $mybb->user['uid'])
{
return $mybb->user;
}
elseif(isset($user_cache[$uid]))
{
return $user_cache[$uid];
}
else
{
$query = $db->simple_select("users", "*", "uid='{$uid}'");
$user_cache[$uid] = $db->fetch_array($query);

return $user_cache[$uid];
}
}

/**
* Get the forum of a specific forum id.
*
* @param int The forum id of the forum.
* @param int (Optional) If set to 1, will override the active forum status
* @return array The database row of a forum.
*/
function get_forum($fid, $active_override=0)
{
global $cache;
static $forum_cache;

if(!isset($forum_cache) || is_array($forum_cache))
{
$forum_cache = $cache->read("forums");
}

if(!$forum_cache[$fid])
{
return false;
}

if($active_override != 1)
{
$parents = explode(",", $forum_cache[$fid]['parentlist']);
if(is_array($parents))
{
foreach($parents as $parent)
{
if($forum_cache[$parent]['active'] == 0)
{
return false;
}
}
}
}

return $forum_cache[$fid];
}

/**
* Get the thread of a thread id.
*
* @param int The thread id of the thread.
* @param boolean Whether or not to recache the thread.
* @return string The database row of the thread.
*/
function get_thread($tid, $recache = false)
{
global $db;
static $thread_cache;

if(isset($thread_cache[$tid]) && !$recache)
{
return $thread_cache[$tid];
}
else
{
$query = $db->simple_select("threads", "*", "tid='".intval($tid)."'");
$thread = $db->fetch_array($query);

if($thread)
{
$thread_cache[$tid] = $thread;
return $thread;
}
else
{
$thread_cache[$tid] = false;
return false;
}
}
}

/**
* Get the post of a post id.
*
* @param int The post id of the post.
* @return string The database row of the post.
*/
function get_post($pid)
{
global $db;
static $post_cache;

if(isset($post_cache[$pid]))
{
return $post_cache[$pid];
}
else
{
$query = $db->simple_select("posts", "*", "pid='".intval($pid)."'");
$post = $db->fetch_array($query);

if($post)
{
$post_cache[$pid] = $post;
return $post;
}
else
{
$post_cache[$pid] = false;
return false;
}
}
}

/**
* Get inactivate forums.
*
* @return string The comma separated values of the inactivate forum.
*/
function get_inactive_forums()
{
global $forum_cache, $cache, $inactiveforums;

if(!$forum_cache)
{
cache_forums();
}

$inactive = array();

foreach($forum_cache as $fid => $forum)
{
if($forum['active'] == 0)
{
$inactive[] = $fid;
foreach($forum_cache as $fid1 => $forum1)
{
if(my_strpos(",".$forum1['parentlist'].",", ",".$fid.",") !== false && !in_array($fid1, $inactive))
{
$inactive[] = $fid1;
}
}
}
}
$inactiveforums = implode(",", $inactive);

return $inactiveforums;
}

/**
* Checks to make sure a user has not tried to login more times than permitted
* Will stop execution with call to error() unless
*
* @param bool (Optional) The function will stop execution if it finds an error with the login. Default is True
* @return bool Number of logins when success, false if failed.
*/
function login_attempt_check($fatal = true)
{
global $mybb, $lang, $session, $db;

if($mybb->settings['failedlogincount'] == 0)
{
return 1;
}
// Note: Number of logins is defaulted to 1, because using 0 seems to clear cookie data. Not really a problem as long as we account for 1 being default.

// Use cookie if possible, otherwise use session
// Session stops user clearing cookies to bypass the login
// Also use the greater of the two numbers present, stops people using scripts with altered cookie data to stay the same
$cookielogins = intval($mybb->cookies['loginattempts']);
$cookietime = $mybb->cookies['failedlogin'];

if(empty($cookielogins) || $cookielogins < $session->logins)
{
$loginattempts = $session->logins;
}
else
{
$loginattempts = $cookielogins;
}

if(empty($cookietime) || $cookietime < $session->failedlogin)
{
$failedlogin = $session->failedlogin;
}
else
{
$failedlogin = $cookietime;
}

// Work out if the user has had more than the allowed number of login attempts
if($loginattempts > $mybb->settings['failedlogincount'])
{
// If so, then we need to work out if they can try to login again
// Some maths to work out how long they have left and display it to them
$now = TIME_NOW;

if(empty($mybb->cookies['failedlogin']))
{
$failedtime = $now;
}
else
{
$failedtime = $mybb->cookies['failedlogin'];
}

$secondsleft = $mybb->settings['failedlogintime'] * 60 + $failedtime - $now;
$hoursleft = floor($secondsleft / 3600);
$minsleft = floor(($secondsleft / 60) % 60);
$secsleft = floor($secondsleft % 60);

// This value will be empty the first time the user doesn't login in, set it
if(empty($failedlogin))
{
my_setcookie('failedlogin', $now);
if($fatal)
{
error($lang->sprintf($lang->failed_login_wait, $hoursleft, $minsleft, $secsleft));
}

return false;
}

// Work out if the user has waited long enough before letting them login again
if($mybb->cookies['failedlogin'] < ($now - $mybb->settings['failedlogintime'] * 60))
{
my_setcookie('loginattempts', 1);
my_unsetcookie('failedlogin');
if($mybb->user['uid'] != 0)
{
$update_array = array(
'loginattempts' => 1
);
$db->update_query("users", $update_array, "uid = '{$mybb->user['uid']}'");
}
return 1;
}
// Not waited long enough
else if($mybb->cookies['failedlogin'] > ($now - $mybb->settings['failedlogintime'] * 60))
{
if($fatal)
{
error($lang->sprintf($lang->failed_login_wait, $hoursleft, $minsleft, $secsleft));
}

return false;
}
}

// User can attempt another login
return $loginattempts;
}

/**
* Validates the format of an email address.
*
* @param string The string to check.
* @return boolean True when valid, false when invalid.
*/
function validate_email_format($email)
{
if(strpos($email, ' ') !== false)
{
return false;
}
// Valid local characters for email addresses: http://www.remote.org/jochen/mail/info/chars.html
return preg_match("/^[a-zA-Z0-9&*+\-_.{}~^\?=\/][email protected][a-zA-Z0-9-]+\.([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]{2,}$/si", $email);
}

/**
* Checks to see if the email is already in use by another
*
* @param string The email to check.
* @param string User ID of the user (updating only)
* @return boolean True when in use, false when not.
*/
function email_already_in_use($email, $uid="")
{
global $db;

$uid_string = "";
if($uid)
{
$uid_string = " AND uid != '".intval($uid)."'";
}
$query = $db->simple_select("users", "COUNT(email) as emails", "email = '".$db->escape_string($email)."'{$uid_string}");

if($db->fetch_field($query, "emails") > 0)
{
return true;
}

return false;
}

/*
* DEPRECATED! ONLY INCLUDED FOR COMPATIBILITY PURPOSES.
*/
function rebuildsettings()
{
rebuild_settings();
}

/**
* Rebuilds settings.php
*
*/
function rebuild_settings()
{
global $db, $mybb;

if(!file_exists(MYBB_ROOT."inc/settings.php"))
{
$mode = "x";
}
else
{
$mode = "w";
}

$options = array(
"order_by" => "title",
"order_dir" => "ASC"
);
$query = $db->simple_select("settings", "value, name", "", $options);

while($setting = $db->fetch_array($query))
{
$mybb->settings[$setting['name']] = $setting['value'];
$setting['value'] = addcslashes($setting['value'], '\\"$');
$settings .= "\$settings['{$setting['name']}'] = \"{$setting['value']}\";\n";
}

$settings = "<"."?php\n/*********************************\ \n DO NOT EDIT THIS FILE, PLEASE USE\n THE SETTINGS EDITOR\n\*********************************/\n\n$settings\n?".">";
$file = @fopen(MYBB_ROOT."inc/settings.php", $mode);
@fwrite($file, $settings);
@fclose($file);

$GLOBALS['settings'] = &$mybb->settings;
}

/**
* Build a PREG compatible array of search highlight terms to replace in posts.
*
* @param string Incoming terms to highlight
* @return array PREG compatible array of terms
*/
function build_highlight_array($terms)
{
global $mybb;

if($mybb->settings['minsearchword'] < 1)
{
$mybb->settings['minsearchword'] = 3;
}

if(is_array($terms))
{
$terms = implode(' ', $terms);
}

// Strip out any characters that shouldn't be included
$bad_characters = array(
"(",
")",
"+",
"-",
"~"
);
$terms = str_replace($bad_characters, '', $terms);

// Check if this is a "series of words" - should be treated as an EXACT match
if(my_strpos($terms, "\"") !== false)
{
$inquote = false;
$terms = explode("\"", $terms);
foreach($terms as $phrase)
{
$phrase = htmlspecialchars_uni($phrase);
if($phrase != "")
{
if($inquote)
{
$words[] = trim($phrase);
}
else
{
$split_words = preg_split("#\s{1,}#", $phrase, -1);
if(!is_array($split_words))
{
continue;
}
foreach($split_words as $word)
{
if(!$word || strlen($word) < $mybb->settings['minsearchword'])
{
continue;
}
$words[] = trim($word);
}
}
}
$inquote = !$inquote;
}
}
// Otherwise just a simple search query with no phrases
else
{
$terms = htmlspecialchars_uni($terms);
$split_words = preg_split("#\s{1,}#", $terms, -1);
if(is_array($split_words))
{
foreach($split_words as $word)
{
if(!$word || strlen($word) < $mybb->settings['minsearchword'])
{
continue;
}
$words[] = trim($word);
}
}
}

if(!is_array($words))
{
return false;
}

// Sort the word array by length. Largest terms go first and work their way down to the smallest term.
// This resolves problems like "test tes" where "tes" will be highlighted first, then "test" can't be highlighted because of the changed html
usort($words, create_function('$a,$b', 'return strlen($b) - strlen($a);'));

// Loop through our words to build the PREG compatible strings
foreach($words as $word)
{
$word = trim($word);

$word = my_strtolower($word);

// Special boolean operators should be stripped
if($word == "" || $word == "or" || $word == "not" || $word == "and")
{
continue;
}

// Now make PREG compatible
$find = "#(?!<.*?)(".preg_quote($word, "#").")(?![^<>]*?>)#i";
$replacement = "<span class=\"highlight\" style=\"padding-left: 0px; padding-right: 0px;\">$1</span>";
$highlight_cache[$find] = $replacement;
}

return $highlight_cache;
}

/**
* Converts a decimal reference of a character to its UTF-8 equivalent
* (Code by Anne van Kesteren, http://annevankesteren.nl/2005/05/character-references)
*
* @param string Decimal value of a character reference
*/
function dec_to_utf8($src)
{
$dest = '';

if($src < 0)
{
return false;
}
elseif($src <= 0x007f)
{
$dest .= chr($src);
}
elseif($src <= 0x07ff)
{
$dest .= chr(0xc0 | ($src >> 6));
$dest .= chr(0x80 | ($src & 0x003f));
}
elseif($src <= 0xffff)
{
$dest .= chr(0xe0 | ($src >> 12));
$dest .= chr(0x80 | (($src >> 6) & 0x003f));
$dest .= chr(0x80 | ($src & 0x003f));
}
elseif($src <= 0x10ffff)
{
$dest .= chr(0xf0 | ($src >> 18));
$dest .= chr(0x80 | (($src >> 12) & 0x3f));
$dest .= chr(0x80 | (($src >> 6) & 0x3f));
$dest .= chr(0x80 | ($src & 0x3f));
}
else
{
// Out of range
return false;
}

return $dest;
}

/**
* Checks if a username has been disallowed for registration/use.
*
* @param string The username
* @param boolean True if the 'last used' dateline should be updated if a match is found.
* @return boolean True if banned, false if not banned
*/
function is_banned_username($username, $update_lastuse=false)
{
global $db;
$query = $db->simple_select('banfilters', 'filter, fid', "type='2'");
while($banned_username = $db->fetch_array($query))
{
// Make regular expression * match
$banned_username['filter'] = str_replace('\*', '(.*)', preg_quote($banned_username['filter'], '#'));
if(preg_match("#(^|\b){$banned_username['filter']}($|\b)#i", $username))
{
// Updating last use
if($update_lastuse == true)
{
$db->update_query("banfilters", array("lastuse" => TIME_NOW), "fid='{$banned_username['fid']}'");
}
return true;
}
}
// Still here - good username
return false;
}

/**
* Check if a specific email address has been banned.
*
* @param string The email address.
* @param boolean True if the 'last used' dateline should be updated if a match is found.
* @return boolean True if banned, false if not banned
*/
function is_banned_email($email, $update_lastuse=false)
{
global $cache, $db;

$banned_cache = $cache->read("bannedemails");

if(!$banned_cache)
{
$cache->update_bannedemails();
$banned_cache = $cache->read("bannedemails");
}

foreach($banned_cache as $banned_email)
{
// Make regular expression * match
$banned_email['filter'] = str_replace('\*', '(.*)', preg_quote($banned_email['filter'], '#'));

if(preg_match("#{$banned_email['filter']}#i", $email))
{
// Updating last use
if($update_lastuse == true)
{
$db->update_query("banfilters", array("lastuse" => TIME_NOW), "fid='{$banned_email['fid']}'");
}
return true;
}
}
// Still here - good email
return false;
}

/**
* Checks if a specific IP address has been banned.
*
* @param string The IP address.
* @param boolean True if the 'last used' dateline should be updated if a match is found.
* @return boolean True if banned, false if not banned.
*/
function is_banned_ip($ip_address, $update_lastuse=false)
{
global $db, $cache;

$banned_ips = $cache->read("bannedips");
if(!is_array($banned_ips))
{
return false;
}

foreach($banned_ips as $banned_ip)
{
if(!$banned_ip['filter'])
{
continue;
}

// Make regular expression * match
$banned_ip['filter'] = str_replace('\*', '(.*)', preg_quote($banned_ip['filter'], '#'));
if(preg_match("#{$banned_ip['filter']}#i", $ip_address))
{
// Updating last use
if($update_lastuse == true)
{
$db->update_query("banfilters", array("lastuse" => TIME_NOW), "fid='{$banned_ip['fid']}'");
}
return true;
}
}
// Still here - good ip
return false;
}

/**
* Build a time zone selection list.
*
* @param string The name of the select
* @param int The selected time zone (defaults to GMT)
* @param boolean True to generate a "short" list with just timezone and current time
*/
function build_timezone_select($name, $selected=0, $short=false)
{
global $mybb, $lang;

$timezones = array(
"-12" => $lang->timezone_gmt_minus_1200,
"-11" => $lang->timezone_gmt_minus_1100,
"-10" => $lang->timezone_gmt_minus_1000,
"-9" => $lang->timezone_gmt_minus_900,
"-8" => $lang->timezone_gmt_minus_800,
"-7" => $lang->timezone_gmt_minus_700,
"-6" => $lang->timezone_gmt_minus_600,
"-5" => $lang->timezone_gmt_minus_500,
"-4.5" => $lang->timezone_gmt_minus_450,
"-4" => $lang->timezone_gmt_minus_400,
"-3.5" => $lang->timezone_gmt_minus_350,
"-3" => $lang->timezone_gmt_minus_300,
"-2" => $lang->timezone_gmt_minus_200,
"-1" => $lang->timezone_gmt_minus_100,
"0" => $lang->timezone_gmt,
"1" => $lang->timezone_gmt_100,
"2" => $lang->timezone_gmt_200,
"3" => $lang->timezone_gmt_300,
"3.5" => $lang->timezone_gmt_350,
"4" => $lang->timezone_gmt_400,
"4.5" => $lang->timezone_gmt_450,
"5" => $lang->timezone_gmt_500,
"5.5" => $lang->timezone_gmt_550,
"6" => $lang->timezone_gmt_600,
"7" => $lang->timezone_gmt_700,
"8" => $lang->timezone_gmt_800,
"9" => $lang->timezone_gmt_900,
"9.5" => $lang->timezone_gmt_950,
"10" => $lang->timezone_gmt_1000,
"11" => $lang->timezone_gmt_1100,
"12" => $lang->timezone_gmt_1200
);

$selected = str_replace("+", "", $selected);
$select = "<select name=\"{$name}\" id=\"{$name}\">\n";
foreach($timezones as $timezone => $label)
{
$selected_add = "";
if($selected == $timezone)
{
$selected_add = " selected=\"selected\"";
}
if($short == true)
{
$label = '';
if($timezone != 0)
{
$label = $timezone;
if($timezone > 0)
{
$label = "+{$label}";
}
if(strpos($timezone, ".") !== false)
{
$label = str_replace(".", ":", $label);
$label = str_replace(":5", ":30", $label);
}
else
{
$label .= ":00";
}
}
$time_in_zone = my_date($mybb->settings['timeformat'], TIME_NOW, $timezone);
$label = $lang->sprintf($lang->timezone_gmt_short, $label." ", $time_in_zone);
}
$select .= "<option value=\"{$timezone}\"{$selected_add}>{$label}</option>\n";
}
$select .= "</select>";
return $select;
}

/**
* Fetch the contents of a remote fle.
*
* @param string The URL of the remote file
* @return string The remote file contents.
*/
function fetch_remote_file($url, $post_data=array())
{
$post_body = '';
if(!empty($post_data))
{
foreach($post_data as $key => $val)
{
$post_body .= '&'.urlencode($key).'='.urlencode($val);
}
$post_body = ltrim($post_body, '&');
}

if(function_exists("curl_init"))
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
if(!empty($post_body))
{
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_body);
}
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
else if(function_exists("fsockopen"))
{
$url = @parse_url($url);
if(!$url['host'])
{
return false;
}
if(!$url['port'])
{
$url['port'] = 80;
}
if(!$url['path'])
{
$url['path'] = "/";
}
if($url['query'])
{
$url['path'] .= "?{$url['query']}";
}
$fp = @fsockopen($url['host'], $url['port'], $error_no, $error, 10);
@stream_set_timeout($fp, 10);
if(!$fp)
{
return false;
}
$headers = array();
if(!empty($post_body))
{
$headers[] = "POST {$url['path']} HTTP/1.0";
$headers[] = "Content-Length: ".strlen($post_body);
$headers[] = "Content-Type: application/x-www-form-urlencoded";
}
else
{
$headers[] = "GET {$url['path']} HTTP/1.0";
}

$headers[] = "Host: {$url['host']}";
$headers[] = "Connection: Close";
$headers[] = '';

if(!empty($post_body))
{
$headers[] = $post_body;
}
else
{
// If we have no post body, we need to add an empty element to make sure we've got \r\n\r\n before the (non-existent) body starts
$headers[] = '';
}

$headers = implode("\r\n", $headers);
if([email protected]($fp, $headers))
{
return false;
}
while(!feof($fp))
{
$data .= fgets($fp, 12800);
}
fclose($fp);
$data = explode("\r\n\r\n", $data, 2);
return $data[1];
}
else if(empty($post_data))
{
return @implode("", @file($url));
}
else
{
return false;
}
}

/**
* Checks if a particular user is a super administrator.
*
* @param int The user ID to check against the list of super admins
* @return boolean True if a super admin, false if not
*/
function is_super_admin($uid)
{
global $mybb;

$mybb->config['super_admins'] = str_replace(" ", "", $mybb->config['super_admins']);
if(my_strpos(",{$mybb->config['super_admins']},", ",{$uid},") === false)
{
return false;
}
else
{
return true;
}
}

/**
* Split a string based on the specified delimeter, ignoring said delimeter in escaped strings.
* Ex: the "quick brown fox" jumped, could return 1 => the, 2 => quick brown fox, 3 => jumped
*
* @param string The delimeter to split by
* @param string The string to split
* @param string The escape character or string if we have one.
* @return array Array of split string
*/
function escaped_explode($delimeter, $string, $escape="")
{
$strings = array();
$original = $string;
$in_escape = false;
if($escape)
{
if(is_array($escape))
{
function escaped_explode_escape($string)
{
return preg_quote($string, "#");
}
$escape_preg = "(".implode("|", array_map("escaped_explode_escape", $escape)).")";
}
else
{
$escape_preg = preg_quote($escape, "#");
}
$quoted_strings = preg_split("#(?<!\\\){$escape_preg}#", $string);
}
else
{
$quoted_strings = array($string);
}
foreach($quoted_strings as $string)
{
if($string != "")
{
if($in_escape)
{
$strings[] = trim($string);
}
else
{
$split_strings = explode($delimeter, $string);
foreach($split_strings as $string)
{
if($string == "") continue;
$strings[] = trim($string);
}
}
}
$in_escape = !$in_escape;
}
if(!count($strings))
{
return $original;
}
return $strings;
}

/**
* Fetch an IPv4 long formatted range for searching IPv4 IP addresses.
*
* @param string The IP address to convert to a range based LONG
* @rturn mixed If a full IP address is provided, the ip2long equivalent, otherwise an array of the upper & lower extremities of the IP
*/
function fetch_longipv4_range($ip)
{
$ip_bits = explode(".", $ip);
$ip_string1 = $ip_string2 = "";

if($ip == "*")
{
return array(ip2long('0.0.0.0'), ip2long('255.255.255.255'));
}

if(strpos($ip, ".*") === false)
{
$ip = str_replace("*", "", $ip);
if(count($ip_bits) == 4)
{
return ip2long($ip);
}
else
{
return array(ip2long($ip.".0"), ip2long($ip.".255"));
}
}
// Wildcard based IP provided
else
{
$sep = "";
foreach($ip_bits as $piece)
{
if($piece == "*")
{
$ip_string1 .= $sep."0";
$ip_string2 .= $sep."255";
}
else
{
$ip_string1 .= $sep.$piece;
$ip_string2 .= $sep.$piece;
}
$sep = ".";
}
return array(ip2long($ip_string1), ip2long($ip_string2));
}
}

/**
* Fetch a list of ban times for a user account.
*
* @return array Array of ban times
*/
function fetch_ban_times()
{
global $plugins, $lang;

// Days-Months-Years
$ban_times = array(
"1-0-0" => "1 {$lang->day}",
"2-0-0" => "2 {$lang->days}",
"3-0-0" => "3 {$lang->days}",
"4-0-0" => "4 {$lang->days}",
"5-0-0" => "5 {$lang->days}",
"6-0-0" => "6 {$lang->days}",
"7-0-0" => "1 {$lang->week}",
"14-0-0" => "2 {$lang->weeks}",
"21-0-0" => "3 {$lang->weeks}",
"0-1-0" => "1 {$lang->month}",
"0-2-0" => "2 {$lang->months}",
"0-3-0" => "3 {$lang->months}",
"0-4-0" => "4 {$lang->months}",
"0-5-0" => "5 {$lang->months}",
"0-6-0" => "6 {$lang->months}",
"0-0-1" => "1 {$lang->year}",
"0-0-2" => "2 {$lang->years}"
);

$ban_times = $plugins->run_hooks("functions_fetch_ban_times", $ban_times);

$ban_times['---'] = $lang->permanent;
return $ban_times;
}

/**
* Format a ban length in to a UNIX timestamp.
*
* @param string The ban length string
* @param int The optional UNIX timestamp, if 0, current time is used.
* @return int The UNIX timestamp when the ban will be lifted
*/
function ban_date2timestamp($date, $stamp=0)
{
if($stamp == 0)
{
$stamp = TIME_NOW;
}
$d = explode('-', $date);
$nowdate = date("H-j-n-Y", $stamp);
$n = explode('-', $nowdate);
$n[1] += $d[0];
$n[2] += $d[1];
$n[3] += $d[2];
return mktime(date("G"), date("i"), 0, $n[2], $n[1], $n[3]);
}

/**
* Expire old warnings in the database.
*
*/
function expire_warnings()
{
global $db;

$users = array();

$query = $db->query("
SELECT w.wid, w.uid, w.points, u.warningpoints
FROM ".TABLE_PREFIX."warnings w
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=w.uid)
WHERE expires<".TIME_NOW." AND expires!=0 AND expired!=1
");
while($warning = $db->fetch_array($query))
{
$updated_warning = array(
"expired" => 1
);
$db->update_query("warnings", $updated_warning, "wid='{$warning['wid']}'");

if(array_key_exists($warning['uid'], $users))
{
$users[$warning['uid']] -= $warning['points'];
}
else
{
$users[$warning['uid']] = $warning['warningpoints']-$warning['points'];
}
}

foreach($users as $uid => $warningpoints)
{
if($warningpoints < 0)
{
$warningpoints = 0;
}

$updated_user = array(
"warningpoints" => intval($warningpoints)
);
$db->update_query("users", $updated_user, "uid='".intval($uid)."'");
}
}

/**
* Custom chmod function to fix problems with hosts who's server configurations screw up umasks
*
* @param string The file to chmod
* @param string The mode to chmod(i.e. 0666)
*/
function my_chmod($file, $mode)
{
// Passing $mode as an octal number causes strlen and substr to return incorrect values. Instead pass as a string
if(substr($mode, 0, 1) != '0' || strlen($mode) !== 4)
{
return false;
}
$old_umask = umask(0);

// We convert the octal string to a decimal number because passing a octal string doesn't work with chmod
// and type casting subsequently removes the prepended 0 which is needed for octal numbers
$result = chmod($file, octdec($mode));
umask($old_umask);
return $result;
}

/**
* Custom rmdir function to loop through an entire directory and delete all files/folders within
*
* @param string The path to the directory
* @param array Any files you wish to ignore (optional)
*/
function my_rmdir_recursive($path, $ignore=array())
{
global $orig_dir;

if(!isset($orig_dir))
{
$orig_dir = $path;
}

if(@is_dir($path) && [email protected]_link($path))
{
if($dh = @opendir($path))
{
while(($file = @readdir($dh)) !== false)
{
if($file == '.' || $file == '..' || $file == '.svn' || in_array($path.'/'.$file, $ignore) || !my_rmdir_recursive($path.'/'.$file))
{
continue;
}
}
@closedir($dh);
}

// Are we done? Don't delete the main folder too and return true
if($path == $orig_dir)
{
return true;
}

return @rmdir($path);
}

return @unlink($path);
}

/**
* Counts the number of subforums in a array([pid][disporder][fid]) starting from the pid
*
* @param array The array of forums
* @return integer The number of sub forums
*/
function subforums_count($array)
{
$count = 0;
foreach($array as $array2)
{
$count += count($array2);
}

return $count;
}

/**
* Fix for PHP's ip2long to guarantee a 32-bit signed integer value is produced (this is aimed
* at 64-bit versions of PHP)
*
* @param string The IP to convert
* @return integer IP in 32-bit signed format
*/
function my_ip2long($ip)
{
$ip_long = ip2long($ip);

if(!$ip_long)
{
$ip_long = sprintf("%u", ip2long($ip));

if(!$ip_long)
{
return 0;
}
}

if($ip_long >= 2147483648) // Won't occur on 32-bit PHP
{
$ip_long -= 4294967296;
}

return $ip_long;
}

/**
* As above, fix for PHP's long2ip on 64-bit versions
*
* @param integer The IP to convert (will accept 64-bit IPs as well)
* @return string IP in IPv4 format
*/
function my_long2ip($long)
{
// On 64-bit machines is_int will return true. On 32-bit it will return false
if($long < 0 && is_int(2147483648))
{
// We have a 64-bit system
$long += 4294967296;
}
return long2ip($long);
}


/**
* Processes a checksum list on MyBB files and returns a result set
*
* @param array The array of checksums and their corresponding files
* @return array The bad files
*/
function verify_files($path=MYBB_ROOT, $count=0)
{
global $mybb, $checksums, $bad_verify_files;

// We don't need to check these types of files
$ignore = array(".", "..", ".svn", "config.php", "settings.php", "Thumb.db", "config.default.php", "lock", "htaccess.txt", "logo.gif");
$ignore_ext = array("attach");

if(substr($path, -1, 1) == "/")
{
$path = substr($path, 0, -1);
}

if(!is_array($bad_verify_files))
{
$bad_verify_files = array();
}

// Make sure that we're in a directory and it's not a symbolic link
if(@is_dir($path) && [email protected]_link($path))
{
if($dh = @opendir($path))
{
// Loop through all the files/directories in this directory
while(($file = @readdir($dh)) !== false)
{
if(in_array($file, $ignore) || in_array(get_extension($file), $ignore_ext))
{
continue;
}

// Recurse through the directory tree
if(is_dir($path."/".$file))
{
verify_files($path."/".$file, ($count+1));
continue;
}

// We only need the last part of the path (from the MyBB directory to the file. i.e. inc/functions.php)
$file_path = ".".str_replace(substr(MYBB_ROOT, 0, -1), "", $path)."/".$file;

// Does this file even exist in our official list? Perhaps it's a plugin
if(array_key_exists($file_path, $checksums))
{
$filename = $path."/".$file;
$handle = fopen($filename, "rb");
$contents = '';
while(!feof($handle))
{
$contents .= fread($handle, 8192);
}
fclose($handle);

$md5 = md5($contents);

// Does it match any of our hashes (unix/windows new lines taken into consideration with the hashes)
if(!in_array($md5, $checksums[$file_path]))
{
$bad_verify_files[] = array("status" => "changed", "path" => $file_path);
}
}
unset($checksums[$file_path]);
}
@closedir($dh);
}
}

if($count == 0)
{
if(!empty($checksums))
{
foreach($checksums as $file_path => $hashes)
{
if(in_array(basename($file_path), $ignore))
{
continue;
}
$bad_verify_files[] = array("status" => "missing", "path" => $file_path);
}
}
}

// uh oh
if($count == 0)
{
return $bad_verify_files;
}
}

/**
* Returns a signed value equal to an integer
*
* @param int The integer
* @return string The signed equivalent
*/
function signed($int)
{
if($int < 0)
{
return "$int";
}
else
{
return "+$int";
}
}

/**
* Returns a securely generated seed for PHP's RNG (Random Number Generator)
*
* @param int Length of the seed bytes (8 is default. Provides good cryptographic variance)
* @return int An integer equivalent of a secure hexadecimal seed
*/
function secure_seed_rng($count=8)
{
$output = '';

// Try the unix/linux method
if(@is_readable('/dev/urandom') && ($handle = @fopen('/dev/urandom', 'rb')))
{
$output = @fread($handle, $count);
@fclose($handle);
}

// Didn't work? Do we still not have enough bytes? Use our own (less secure) rng generator
if(strlen($output) < $count)
{
$output = '';

// Close to what PHP basically uses internally to seed, but not quite.
$unique_state = microtime()[email protected]();

for($i = 0; $i < $count; $i += 16)
{
$unique_state = md5(microtime().$unique_state);
$output .= pack('H*', md5($unique_state));
}
}

// /dev/urandom and openssl will always be twice as long as $count. base64_encode will roughly take up 33% more space but crc32 will put it to 32 characters
$output = hexdec(substr(dechex(crc32(base64_encode($output))), 0, $count));

return $output;
}

/**
* Wrapper function for mt_rand. Automatically seeds using a secure seed once.
*
* @param int Optional lowest value to be returned (default: 0)
* @param int Optional highest value to be returned (default: mt_getrandmax())
* @param boolean True forces it to reseed the RNG first
* @return int An integer equivalent of a secure hexadecimal seed
*/
function my_rand($min=null, $max=null, $force_seed=false)
{
static $seeded = false;
static $obfuscator = 0;

if($seeded == false || $force_seed == true)
{
mt_srand(secure_seed_rng());
$seeded = true;

$obfuscator = abs((int) secure_seed_rng());

// Ensure that $obfuscator is <= mt_getrandmax() for 64 bit systems.
if($obfuscator > mt_getrandmax())
{
$obfuscator -= mt_getrandmax();
}
}

if($min !== null && $max !== null)
{
$distance = $max - $min;
if ($distance > 0)
{
return $min + (int)((float)($distance + 1) * (float)(mt_rand() ^ $obfuscator) / (mt_getrandmax() + 1));
}
else
{
return mt_rand($min, $max);
}
}
else
{
$val = mt_rand() ^ $obfuscator;
return $val;
}
}

/**
* More robust version of PHP's trim() function. It includes a list of UTF-16 blank characters
* from http://kb.mozillazine.org/Network.IDN.blacklist_chars
*
* @param string The string to trim from
* @param string Optional. The stripped characters can also be specified using the charlist parameter
* @return string The trimmed string
*/
function trim_blank_chrs($string, $charlist=false)
{
$hex_chrs = array(
0x20 => 1,
0x09 => 1,
0x0A => 1,
0x0D => 1,
0x0B => 1,
0xAD => 1,
0xC2 => array(0xA0 => 1,
0xAD => 1,
0xBF => 1,
0x81 => 1,
0x8D => 1,
0x90 => 1,
0x9D => 1,),
0xCC => array(0xB7 => 1, 0xB8 => 1), // \x{0337} or \x{0338}
0xE1 => array(0x85 => array(0x9F => 1, 0xA0 => 1)), // \x{115F} or \x{1160}
0xE2 => array(0x80 => array(0x80 => 1, 0x81 => 1, 0x82 => 1, 0x83 => 1, 0x84 => 1, 0x85 => 1, 0x86 => 1, 0x87 => 1, 0x88 => 1, 0x89 => 1, 0x8A => 1, 0x8B => 1, // \x{2000} to \x{200B}
0xA8 => 1, 0xA9 => 1, 0xAA => 1, 0xAB => 1, 0xAC => 1, 0xAD => 1, 0xAE => 1, 0xAF => 1), // \x{2028} to \x{202F}
0x81 => array(0x9F => 1)), // \x{205F}
0xE3 => array(0x80 => array(0x80 => 1), // \x{3000}
0x85 => array(0xA4 => 1)), // \x{3164}
0xEF => array(0xBB => array(0xBF => 1), // \x{FEFF}
0xBE => array(0xA0 => 1), // \x{FFA0}
0xBF => array(0xB9 => 1, 0xBA => 1, 0xBB => 1)), // \x{FFF9} to \x{FFFB}
);

$hex_chrs_rev = array(
0x20 => 1,
0x09 => 1,
0x0A => 1,
0x0D => 1,
0x0B => 1,
0xA0 => array(0xC2 => 1),
0xAD => array(0xC2 => 1),
0xBF => array(0xC2 => 1),
0x81 => array(0xC2 => 1),
0x8D => array(0xC2 => 1),
0x90 => array(0xC2 => 1),
0x9D => array(0xC2 => 1),
0xB8 => array(0xCC => 1), // \x{0338}
0xB7 => array(0xCC => 1), // \x{0337}
0xA0 => array(0x85 => array(0xE1 => 1)), // \x{1160}
0x9F => array(0x85 => array(0xE1 => 1), // \x{115F}
0x81 => array(0xE2 => 1)), // \x{205F}
0x80 => array(0x80 => array(0xE3 => 1, 0xE2 => 1)), // \x{3000}, \x{2000}
0x81 => array(0x80 => array(0xE2 => 1)), // \x{2001}
0x82 => array(0x80 => array(0xE2 => 1)), // \x{2002}
0x83 => array(0x80 => array(0xE2 => 1)), // \x{2003}
0x84 => array(0x80 => array(0xE2 => 1)), // \x{2004}
0x85 => array(0x80 => array(0xE2 => 1)), // \x{2005}
0x86 => array(0x80 => array(0xE2 => 1)), // \x{2006}
0x87 => array(0x80 => array(0xE2 => 1)), // \x{2007}
0x88 => array(0x80 => array(0xE2 => 1)), // \x{2008}
0x89 => array(0x80 => array(0xE2 => 1)), // \x{2009}
0x8A => array(0x80 => array(0xE2 => 1)), // \x{200A}
0x8B => array(0x80 => array(0xE2 => 1)), // \x{200B}
0xA8 => array(0x80 => array(0xE2 => 1)), // \x{2028}
0xA9 => array(0x80 => array(0xE2 => 1)), // \x{2029}
0xAA => array(0x80 => array(0xE2 => 1)), // \x{202A}
0xAB => array(0x80 => array(0xE2 => 1)), // \x{202B}
0xAC => array(0x80 => array(0xE2 => 1)), // \x{202C}
0xAD => array(0x80 => array(0xE2 => 1)), // \x{202D}
0xAE => array(0x80 => array(0xE2 => 1)), // \x{202E}
0xAF => array(0x80 => array(0xE2 => 1)), // \x{202F}
0xA4 => array(0x85 => array(0xE3 => 1)), // \x{3164}
0xBF => array(0xBB => array(0xEF => 1)), // \x{FEFF}
0xA0 => array(0xBE => array(0xEF => 1)), // \x{FFA0}
0xB9 => array(0xBF => array(0xEF => 1)), // \x{FFF9}
0xBA => array(0xBF => array(0xEF => 1)), // \x{FFFA}
0xBB => array(0xBF => array(0xEF => 1)), // \x{FFFB}
);

// Start from the beginning and work our way in
do
{
// Check to see if we have matched a first character in our utf-16 array
$offset = match_sequence($string, $hex_chrs);
if(!$offset)
{
// If not, then we must have a "good" character and we don't need to do anymore processing
break;
}
$string = substr($string, $offset);
}
while(++$i);

// Start from the end and work our way in
$string = strrev($string);
do
{
// Check to see if we have matched a first character in our utf-16 array
$offset = match_sequence($string, $hex_chrs_rev);
if(!$offset)
{
// If not, then we must have a "good" character and we don't need to do anymore processing
break;
}
$string = substr($string, $offset);
}
while(++$i);
$string = strrev($string);

if($charlist !== false)
{
$string = trim($string, $charlist);
}
else
{
$string = trim($string);
}

return $string;
}

function match_sequence($string, $array, $i=0, $n=0)
{
if($string === "")
{
return 0;
}

$ord = ord($string[$i]);
if(array_key_exists($ord, $array))
{
$level = $array[$ord];
++$n;
if(is_array($level))
{
++$i;
return match_sequence($string, $level, $i, $n);
}
return $n;
}

return 0;
}

/**
* Obtain the version of GD installed.
*
* @return float Version of GD
*/
function gd_version()
{
static $gd_version;

if($gd_version)
{
return $gd_version;
}
if(!extension_loaded('gd'))
{
return;
}

if(function_exists("gd_info"))
{
$gd_info = gd_info();
preg_match('/\d/', $gd_info['GD Version'], $gd);
$gd_version = $gd[0];
}
else
{
ob_start();
phpinfo(8);
$info = ob_get_contents();
ob_end_clean();
$info = stristr($info, 'gd version');
preg_match('/\d/', $info, $gd);
$gd_version = $gd[0];
}

return $gd_version;
}

?>

(01-23-2012, 07:14 PM)ronniebellie Wrote: [ -> ]
(01-23-2012, 06:58 PM)JimR Wrote: [ -> ]
(01-23-2012, 06:23 PM)ronniebellie Wrote: [ -> ]
(01-23-2012, 06:20 PM)lexy Wrote: [ -> ]fix this first
[Image: ScreenShot011-1.png]

How do I fix that?

navigate to inc/functions.php and line 1680 and post up its contents or in fact the function if the line is within one... As Linux disregardes the error I guess the problem lies within code added to functions.php to target Windows machines perhaps reupload & overwrite inc/functions.php

Thanks for your help with this. Here's the contents of the function.php file.

_______________________________________________
<?php
/**
* MyBB 1.6
* Copyright 2010 MyBB Group, All Rights Reserved
*
* Website: http://mybb.com
* License: http://mybb.com/about/license
*
* $Id: functions.php 5639 2011-10-26 09:16:47Z Tomm $
*/

/**
* Outputs a page directly to the browser, parsing anything which needs to be parsed.
*
* @param string The contents of the page.
*/
function output_page($contents)
{
global $db, $lang, $theme, $plugins, $mybb;
global $debug, $templatecache, $templatelist, $maintimer, $globaltime, $parsetime;

$contents = parse_page($contents);
$totaltime = $maintimer->stop();

if($mybb->usergroup['cancp'] == 1)
{
if($mybb->settings['extraadmininfo'] != 0)
{
$phptime = $maintimer->format($maintimer->totaltime - $db->query_time);
$query_time = $maintimer->format($db->query_time);

if($maintimer->totaltime > 0)
{
$percentphp = number_format((($phptime/$maintimer->totaltime) * 100), 2);
$percentsql = number_format((($query_time/$maintimer->totaltime) * 100), 2);
}
else
{
// if we've got a super fast script... all we can do is assume something
$percentphp = 0;
$percentsql = 0;
}

$phpversion = PHP_VERSION;

$serverload = get_server_load();

if(my_strpos(getenv("REQUEST_URI"), "?"))
{
$debuglink = htmlspecialchars(getenv("REQUEST_URI")) . "&amp;debug=1";
}
else
{
$debuglink = htmlspecialchars(getenv("REQUEST_URI")) . "?debug=1";
}

if($mybb->settings['gzipoutput'] != 0)
{
$gzipen = "Enabled";
}
else
{
$gzipen = "Disabled";
}

if(function_exists("memory_get_usage"))
{
$memory_usage = " / Memory Usage: ".get_friendly_size(memory_get_peak_usage(true));
}

$other = "PHP version: $phpversion / Server Load: $serverload / GZip Compression: $gzipen";
$debugstuff = "Generated in $totaltime seconds ($percentphp% PHP / $percentsql% MySQL)<br />SQL Queries: $db->query_count / Global Parsing Time: $globaltime$memory_usage<br />$other<br />[<a href=\"$debuglink\" target=\"_blank\">advanced details</a>]<br />";
$contents = str_replace("<debugstuff>", $debugstuff, $contents);
}

if($mybb->debug_mode == true)
{
debug_page();
}
}

$contents = str_replace("<debugstuff>", "", $contents);
$contents = $plugins->run_hooks("pre_output_page", $contents);

if($mybb->settings['gzipoutput'] == 1)
{
$contents = gzip_encode($contents, $mybb->settings['gziplevel']);
}

@header("Content-type: text/html; charset={$lang->settings['charset']}");

echo $contents;

$plugins->run_hooks("post_output_page");

// If the use shutdown functionality is turned off, run any shutdown related items now.
if($mybb->settings['useshutdownfunc'] == 0 && $mybb->use_shutdown != true)
{
run_shutdown();
}
}

/**
* Adds a function or class to the list of code to run on shutdown.
*
* @param mixed The name of the function.
* @param mixed An array of arguments for the function
* @return boolean True if function exists, otherwise false.
*/
function add_shutdown($name, $arguments=array())
{
global $shutdown_functions;

if(!is_array($arguments))
{
$arguments = array($arguments);
}

if(is_array($name) && method_exists($name[0], $name[1]))
{
$shutdown_functions["class_".get_class($name[0])."_".$name[1]] = array('function' => $name, 'arguments' => $arguments);
return true;
}
else if(!is_array($name) && function_exists($name))
{
$shutdown_functions[$name] = array('function' => $name, 'arguments' => $arguments);
return true;
}

return false;
}

/**
* Runs the shutdown items after the page has been sent to the browser.
*
*/
function run_shutdown()
{
global $config, $db, $cache, $plugins, $error_handler, $shutdown_functions, $shutdown_queries, $done_shutdown, $mybb;

if($done_shutdown == true || !$config || $error_handler->has_errors)
{
return;
}

// Missing the core? Build
if(!is_object($mybb))
{
require_once MYBB_ROOT."inc/class_core.php";
$mybb = new MyBB;

// Load the settings
require MYBB_ROOT."inc/settings.php";
$mybb->settings = &$settings;
}


// If our DB has been deconstructed already (bad PHP 5.2.0), reconstruct
if(!is_object($db))
{
if(!isset($config) || empty($config['database']['type']))
{
require MYBB_ROOT."inc/config.php";
}

if(isset($config))
{
require_once MYBB_ROOT."inc/db_".$config['database']['type'].".php";
switch($config['database']['type'])
{
case "sqlite":
$db = new DB_SQLite;
break;
case "pgsql":
$db = new DB_PgSQL;
break;
case "mysqli":
$db = new DB_MySQLi;
break;
default:
$db = new DB_MySQL;
}


$db->connect($config['database']);
define("TABLE_PREFIX", $config['database']['table_prefix']);
$db->set_table_prefix(TABLE_PREFIX);
}
}

// Cache object deconstructed? reconstruct
if(!is_object($cache))
{
require_once MYBB_ROOT."inc/class_datacache.php";
$cache = new datacache;
$cache->cache();
}

// And finally.. plugins
if(!is_object($plugins) && !defined("NO_PLUGINS") && !($mybb->settings['no_plugins'] == 1))
{
require_once MYBB_ROOT."inc/class_plugins.php";
$plugins = new pluginSystem;
$plugins->load();
}

// We have some shutdown queries needing to be run
if(is_array($shutdown_queries))
{
// Loop through and run them all
foreach($shutdown_queries as $query)
{
$db->query($query);
}
}

// Run any shutdown functions if we have them
if(is_array($shutdown_functions))
{
foreach($shutdown_functions as $function)
{
call_user_func_array($function['function'], $function['arguments']);
}
}

$done_shutdown = true;
}

/**
* Sends a specified amount of messages from the mail queue
*
* @param int The number of messages to send (Defaults to 10)
*/
function send_mail_queue($count=10)
{
global $db, $cache, $plugins;

$plugins->run_hooks("send_mail_queue_start");

// Check to see if the mail queue has messages needing to be sent
$mailcache = $cache->read("mailqueue");
if($mailcache['queue_size'] > 0 && ($mailcache['locked'] == 0 || $mailcache['locked'] < TIME_NOW-300))
{
// Lock the queue so no other messages can be sent whilst these are (for popular boards)
$cache->update_mailqueue(0, TIME_NOW);

// Fetch emails for this page view - and send them
$query = $db->simple_select("mailqueue", "*", "", array("order_by" => "mid", "order_dir" => "asc", "limit_start" => 0, "limit" => $count));

while($email = $db->fetch_array($query))
{
// Delete the message from the queue
$db->delete_query("mailqueue", "mid='{$email['mid']}'");

if($db->affected_rows() == 1)
{
my_mail($email['mailto'], $email['subject'], $email['message'], $email['mailfrom'], "", $email['headers']);
}
}
// Update the mailqueue cache and remove the lock
$cache->update_mailqueue(TIME_NOW, 0);
}

$plugins->run_hooks("send_mail_queue_end");
}

/**
* Parses the contents of a page before outputting it.
*
* @param string The contents of the page.
* @return string The parsed page.
*/
function parse_page($contents)
{
global $lang, $theme, $mybb, $htmldoctype, $archive_url, $error_handler;

$contents = str_replace('<navigation>', build_breadcrumb(1), $contents);
$contents = str_replace('<archive_url>', $archive_url, $contents);

if($htmldoctype)
{
$contents = $htmldoctype.$contents;
}
else
{
$contents = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n".$contents;
}

$contents = str_replace("<html", "<html xmlns=\"http://www.w3.org/1999/xhtml\"", $contents);

if($lang->settings['rtl'] == 1)
{
$contents = str_replace("<html", "<html dir=\"rtl\"", $contents);
}

if($lang->settings['htmllang'])
{
$contents = str_replace("<html", "<html xml:lang=\"".$lang->settings['htmllang']."\" lang=\"".$lang->settings['htmllang']."\"", $contents);
}

if($error_handler->warnings)
{
$contents = str_replace("<body>", "<body>\n".$error_handler->show_warnings(), $contents);
}

return $contents;
}

/**
* Turn a unix timestamp in to a "friendly" date/time format for the user.
*
* @param string A date format according to PHP's date structure.
* @param int The unix timestamp the date should be generated for.
* @param int The offset in hours that should be applied to times. (timezones)
* @param int Whether or not to use today/yesterday formatting.
* @param boolean Whether or not to use the adodb time class for < 1970 or > 2038 times
* @return string The formatted timestamp.
*/
function my_date($format, $stamp="", $offset="", $ty=1, $adodb=false)
{
global $mybb, $lang, $mybbadmin, $plugins;

// If the stamp isn't set, use TIME_NOW
if(empty($stamp))
{
$stamp = TIME_NOW;
}

if(!$offset && $offset != '0')
{
if($mybb->user['uid'] != 0 && array_key_exists("timezone", $mybb->user))
{
$offset = $mybb->user['timezone'];
$dstcorrection = $mybb->user['dst'];
}
elseif(defined("IN_ADMINCP"))
{
$offset = $mybbadmin['timezone'];
$dstcorrection = $mybbadmin['dst'];
}
else
{
$offset = $mybb->settings['timezoneoffset'];
$dstcorrection = $mybb->settings['dstcorrection'];
}

// If DST correction is enabled, add an additional hour to the timezone.
if($dstcorrection == 1)
{
++$offset;
if(my_substr($offset, 0, 1) != "-")
{
$offset = "+".$offset;
}
}
}

if($offset == "-")
{
$offset = 0;
}

if($adodb == true && function_exists('adodb_date'))
{
$date = adodb_date($format, $stamp + ($offset * 3600));
}
else
{
$date = gmdate($format, $stamp + ($offset * 3600));
}

if($mybb->settings['dateformat'] == $format && $ty)
{
$stamp = TIME_NOW;

if($adodb == true && function_exists('adodb_date'))
{
$todaysdate = adodb_date($format, $stamp + ($offset * 3600));
$yesterdaysdate = adodb_date($format, ($stamp - 86400) + ($offset * 3600));
}
else
{
$todaysdate = gmdate($format, $stamp + ($offset * 3600));
$yesterdaysdate = gmdate($format, ($stamp - 86400) + ($offset * 3600));
}

if($todaysdate == $date)
{
$date = $lang->today;
}
else if($yesterdaysdate == $date)
{
$date = $lang->yesterday;
}
}

if(is_object($plugins))
{
$date = $plugins->run_hooks("my_date", $date);
}

return $date;
}

/**
* Sends an email using PHP's mail function, formatting it appropriately.
*
* @param string Address the email should be addressed to.
* @param string The subject of the email being sent.
* @param string The message being sent.
* @param string The from address of the email, if blank, the board name will be used.
* @param string The chracter set being used to send this email.
* @param boolean Do we wish to keep the connection to the mail server alive to send more than one message (SMTP only)
* @param string The format of the email to be sent (text or html). text is default
* @param string The text message of the email if being sent in html format, for email clients that don't support html
* @param string The email address to return to. Defaults to admin return email address.
*/
function my_mail($to, $subject, $message, $from="", $charset="", $headers="", $keep_alive=false, $format="text", $message_text="", $return_email="")
{
global $mybb;
static $mail;

// Does our object not exist? Create it
if(!is_object($mail))
{
require_once MYBB_ROOT."inc/class_mailhandler.php";

if($mybb->settings['mail_handler'] == 'smtp')
{
require_once MYBB_ROOT."inc/mailhandlers/smtp.php";
$mail = new SmtpMail();
}
else
{
require_once MYBB_ROOT."inc/mailhandlers/php.php";
$mail = new PhpMail();
}
}

// Using SMTP based mail
if($mybb->settings['mail_handler'] == 'smtp')
{
if($keep_alive == true)
{
$mail->keep_alive = true;
}
}

// Using PHP based mail()
else
{
if($mybb->settings['mail_parameters'] != '')
{
$mail->additional_parameters = $mybb->settings['mail_parameters'];
}
}

// Build and send
$mail->build_message($to, $subject, $message, $from, $charset, $headers, $format, $message_text, $return_email);
return $mail->send();
}

/**
* Generates a unique code for POST requests to prevent XSS/CSRF attacks
*
* @return string The generated code
*/
function generate_post_check()
{
global $mybb;
if($mybb->user['uid'])
{
return md5($mybb->user['loginkey'].$mybb->user['salt'].$mybb->user['regdate']);
}
// Guests get a special string
else
{
return md5($mybb->settings['bburl'].$mybb->config['database']['username'].$mybb->settings['internal']['encryption_key']);
}
}

/**
* Verifies a POST check code is valid, if not shows an error (silently returns false on silent parameter)
*
* @param string The incoming POST check code
* @param boolean Silent mode or not (silent mode will not show the error to the user but returns false)
*/
function verify_post_check($code, $silent=false)
{
global $lang;
if(generate_post_check() != $code)
{
if($silent == true)
{
return false;
}
else
{
if(defined("IN_ADMINCP"))
{
return false;
}
else
{
error($lang->invalid_post_code);
}
}
}
else
{
return true;
}
}

/**
* Return a parent list for the specified forum.
*
* @param int The forum id to get the parent list for.
* @return string The comma-separated parent list.
*/
function get_parent_list($fid)
{
global $forum_cache;
static $forumarraycache;

if($forumarraycache[$fid])
{
return $forumarraycache[$fid]['parentlist'];
}
elseif($forum_cache[$fid])
{
return $forum_cache[$fid]['parentlist'];
}
else
{
cache_forums();
return $forum_cache[$fid]['parentlist'];
}
}

/**
* Build a parent list of a specific forum, suitable for querying
*
* @param int The forum ID
* @param string The column name to add to the query
* @param string The joiner for each forum for querying (OR | AND | etc)
* @param string The parent list of the forum - if you have it
* @return string The query string generated
*/
function build_parent_list($fid, $column="fid", $joiner="OR", $parentlist="")
{
if(!$parentlist)
{
$parentlist = get_parent_list($fid);
}

$parentsexploded = explode(",", $parentlist);
$builtlist = "(";
$sep = '';

foreach($parentsexploded as $key => $val)
{
$builtlist .= "$sep$column='$val'";
$sep = " $joiner ";
}

$builtlist .= ")";

return $builtlist;
}

/**
* Load the forum cache in to memory
*
* @param boolean True to force a reload of the cache
*/
function cache_forums($force=false)
{
global $forum_cache, $cache;

if($force == true)
{
$forum_cache = $cache->read("forums", 1);
return $forum_cache;
}

if(!$forum_cache)
{
$forum_cache = $cache->read("forums");
if(!$forum_cache)
{
$cache->update_forums();
$forum_cache = $cache->read("forums", 1);
}
}
return $forum_cache;
}

/**
* Generate an array of all child and descendant forums for a specific forum.
*
* @param int The forum ID
* @param return Array of descendants
*/
function get_child_list($fid)
{
static $forums_by_parent;

$forums = array();
if(!is_array($forums_by_parent))
{
$forum_cache = cache_forums();
foreach($forum_cache as $forum)
{
if($forum['active'] != 0)
{
$forums_by_parent[$forum['pid']][$forum['fid']] = $forum;
}
}
}
if(!is_array($forums_by_parent[$fid]))
{
return;
}

foreach($forums_by_parent[$fid] as $forum)
{
$forums[] = $forum['fid'];
$children = get_child_list($forum['fid']);
if(is_array($children))
{
$forums = array_merge($forums, $children);
}
}
return $forums;
}

/**
* Produce a friendly error message page
*
* @param string The error message to be shown
* @param string The title of the message shown in the title of the page and the error table
*/
function error($error="", $title="")
{
global $header, $footer, $theme, $headerinclude, $db, $templates, $lang, $mybb, $plugins;

$error = $plugins->run_hooks("error", $error);
if(!$error)
{
$error = $lang->unknown_error;
}

// AJAX error message?
if($mybb->input['ajax'])
{
// Send our headers.
@header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<error>{$error}</error>\n";
exit;
}

if(!$title)
{
$title = $mybb->settings['bbname'];
}

$timenow = my_date($mybb->settings['dateformat'], TIME_NOW) . " " . my_date($mybb->settings['timeformat'], TIME_NOW);
reset_breadcrumb();
add_breadcrumb($lang->error);

eval("\$errorpage = \"".$templates->get("error")."\";");
output_page($errorpage);

exit;
}

/**
* Produce an error message for displaying inline on a page
*
* @param array Array of errors to be shown
* @param string The title of the error message
* @return string The inline error HTML
*/
function inline_error($errors, $title="")
{
global $theme, $mybb, $db, $lang, $templates;

if(!$title)
{
$title = $lang->please_correct_errors;
}

if(!is_array($errors))
{
$errors = array($errors);
}

// AJAX error message?
if($mybb->input['ajax'])
{
$error = implode("\n\n", $errors);
// Send our headers.
@header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<error>{$error}</error>\n";
exit;
}

foreach($errors as $error)
{
$errorlist .= "<li>".$error."</li>\n";
}

eval("\$errors = \"".$templates->get("error_inline")."\";");

return $errors;
}

/**
* Presents the user with a "no permission" page
*/
function error_no_permission()
{
global $mybb, $theme, $templates, $db, $lang, $plugins, $session;

$time = TIME_NOW;
$plugins->run_hooks("no_permission");

$noperm_array = array (
"nopermission" => '1',
"location1" => 0,
"location2" => 0
);

$db->update_query("sessions", $noperm_array, "sid='{$session->sid}'", 1);

if($mybb->input['ajax'])
{
// Send our headers.
header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<error>{$lang->error_nopermission_user_ajax}</error>\n";
exit;
}

if($mybb->user['uid'])
{
$lang->error_nopermission_user_username = $lang->sprintf($lang->error_nopermission_user_username, $mybb->user['username']);
eval("\$errorpage = \"".$templates->get("error_nopermission_loggedin")."\";");
}
else
{
// Redirect to where the user came from
if($_SERVER['HTTP_REFERER'])
{
$redirect_url = htmlentities($_SERVER['HTTP_REFERER']);
}
else
{
$redirect_url = '';
}

eval("\$errorpage = \"".$templates->get("error_nopermission")."\";");
}

error($errorpage);
}

/**
* Redirect the user to a given URL with a given message
*
* @param string The URL to redirect the user to
* @param string The redirection message to be shown
*/
function redirect($url, $message="", $title="")
{
global $header, $footer, $mybb, $theme, $headerinclude, $templates, $lang, $plugins;

$redirect_args = array('url' => &$url, 'message' => &$message, 'title' => &$title);

$plugins->run_hooks("redirect", $redirect_args);

if($mybb->input['ajax'])
{
// Send our headers.
@header("Content-type: text/html; charset={$lang->settings['charset']}");
echo "<script type=\"text/javascript\">\n";
if($message != "")
{
echo 'alert("'.addslashes($message).'");';
}
$url = str_replace("#", "&#", $url);
$url = htmlspecialchars_decode($url);
$url = str_replace(array("\n","\r",";"), "", $url);
echo 'window.location = "'.addslashes($url).'";'."\n";
echo "</script>\n";
exit;
}

if(!$message)
{
$message = $lang->redirect;
}

$time = TIME_NOW;
$timenow = my_date($mybb->settings['dateformat'], $time) . " " . my_date($mybb->settings['timeformat'], $time);

if(!$title)
{
$title = $mybb->settings['bbname'];
}

// Show redirects only if both ACP and UCP settings are enabled, or ACP is enabled, and user is a guest.
if($mybb->settings['redirects'] == 1 && ($mybb->user['showredirect'] != 0 || !$mybb->user['uid']))
{
$url = str_replace("&amp;", "&", $url);
$url = htmlspecialchars($url);

eval("\$redirectpage = \"".$templates->get("redirect")."\";");
output_page($redirectpage);
}
else
{
$url = htmlspecialchars_decode($url);
$url = str_replace(array("\n","\r",";"), "", $url);

run_shutdown();

if(my_substr($url, 0, 7) !== 'http://' && my_substr($url, 0, 8) !== 'https://')
{
header("Location: {$mybb->settings['bburl']}/{$url}");
}
else
{
header("Location: {$url}");
}
}

exit;
}

/**
* Generate a listing of page - pagination
*
* @param int The number of items
* @param int The number of items to be shown per page
* @param int The current page number
* @param string The URL to have page numbers tacked on to (If {page} is specified, the value will be replaced with the page #)
* @return string The generated pagination
*/
function multipage($count, $perpage, $page, $url, $breadcrumb=false)
{
global $theme, $templates, $lang, $mybb;

if($count <= $perpage)
{
return;
}

$url = str_replace("&amp;", "&", $url);
$url = htmlspecialchars_uni($url);

$pages = ceil($count / $perpage);

if($page > 1)
{
$prev = $page-1;
$page_url = fetch_page_url($url, $prev);
eval("\$prevpage = \"".$templates->get("multipage_prevpage")."\";");
}

// Maximum number of "page bits" to show
if(!$mybb->settings['maxmultipagelinks'])
{
$mybb->settings['maxmultipagelinks'] = 5;
}

$from = $page-floor($mybb->settings['maxmultipagelinks']/2);
$to = $page+floor($mybb->settings['maxmultipagelinks']/2);

if($from <= 0)
{
$from = 1;
$to = $from+$mybb->settings['maxmultipagelinks']-1;
}

if($to > $pages)
{
$to = $pages;
$from = $pages-$mybb->settings['maxmultipagelinks']+1;
if($from <= 0)
{
$from = 1;
}
}

if($to == 0)
{
$to = $pages;
}

if($from > 1)
{
if($from-1 == 1)
{
$lang->multipage_link_start = '';
}

$page_url = fetch_page_url($url, 1);
eval("\$start = \"".$templates->get("multipage_start")."\";");
}

for($i = $from; $i <= $to; ++$i)
{
$page_url = fetch_page_url($url, $i);
if($page == $i)
{
if($breadcrumb == true)
{
eval("\$mppage .= \"".$templates->get("multipage_page_link_current")."\";");
}
else
{
eval("\$mppage .= \"".$templates->get("multipage_page_current")."\";");
}
}
else
{
eval("\$mppage .= \"".$templates->get("multipage_page")."\";");
}
}

if($to < $pages)
{
if($to+1 == $pages)
{
$lang->multipage_link_end = '';
}

$page_url = fetch_page_url($url, $pages);
eval("\$end = \"".$templates->get("multipage_end")."\";");
}

if($page < $pages)
{
$next = $page+1;
$page_url = fetch_page_url($url, $next);
eval("\$nextpage = \"".$templates->get("multipage_nextpage")."\";");
}
$lang->multipage_pages = $lang->sprintf($lang->multipage_pages, $pages);

if($breadcrumb == true)
{
eval("\$multipage = \"".$templates->get("multipage_breadcrumb")."\";");
}
else
{
eval("\$multipage = \"".$templates->get("multipage")."\";");
}

return $multipage;
}

/**
* Generate a page URL for use by the multipage function
*
* @param string The URL being passed
* @param int The page number
*/
function fetch_page_url($url, $page)
{
if($page <= 1)
{
$find = array(
"-page-{page}",
"&amp;page={page}",
"{page}"
);

// Remove "Page 1" to the defacto URL
$url = str_replace($find, array("", "", $page), $url);
return $url;
}
else if(strpos($url, "{page}") === false)
{
// If no page identifier is specified we tack it on to the end of the URL
if(strpos($url, "?") === false)
{
$url .= "?";
}
else
{
$url .= "&amp;";
}

$url .= "page=$page";
}
else
{
$url = str_replace("{page}", $page, $url);
}

return $url;
}

/**
* Fetch the permissions for a specific user
*
* @param int The user ID
* @return array Array of user permissions for the specified user
*/
function user_permissions($uid=0)
{
global $mybb, $cache, $groupscache, $user_cache;

// If no user id is specified, assume it is the current user
if($uid == 0)
{
$uid = $mybb->user['uid'];
}

// User id does not match current user, fetch permissions
if($uid != $mybb->user['uid'])
{
// We've already cached permissions for this user, return them.
if($user_cache[$uid]['permissions'])
{
return $user_cache[$uid]['permissions'];
}

// This user was not already cached, fetch their user information.
if(!$user_cache[$uid])
{
$user_cache[$uid] = get_user($uid);
}

// Collect group permissions.
$gid = $user_cache[$uid]['usergroup'].",".$user_cache[$uid]['additionalgroups'];
$groupperms = usergroup_permissions($gid);

// Store group permissions in user cache.
$user_cache[$uid]['permissions'] = $groupperms;
return $groupperms;
}
// This user is the current user, return their permissions
else
{
return $mybb->usergroup;
}
}

/**
* Fetch the usergroup permissions for a specic group or series of groups combined
*
* @param mixed A list of groups (Can be a single integer, or a list of groups separated by a comma)
* @return array Array of permissions generated for the groups
*/
function usergroup_permissions($gid=0)
{
global $cache, $groupscache, $grouppermignore, $groupzerogreater;

if(!is_array($groupscache))
{
$groupscache = $cache->read("usergroups");
}

$groups = explode(",", $gid);


if(count($groups) == 1)
{
return $groupscache[$gid];
}

foreach($groups as $gid)
{
if(trim($gid) == "" || !$groupscache[$gid])
{
continue;
}

foreach($groupscache[$gid] as $perm => $access)
{
if(!in_array($perm, $grouppermignore))
{
if(isset($usergroup[$perm]))
{
$permbit = $usergroup[$perm];
}
else
{
$permbit = "";
}

// 0 represents unlimited for numerical group permissions (i.e. private message limit) so take that into account.
if(in_array($perm, $groupzerogreater) && ($access == 0 || $permbit === 0))
{
$usergroup[$perm] = 0;
continue;
}

if($access > $permbit || ($access == "yes" && $permbit == "no") || !$permbit) // Keep yes/no for compatibility?
{
$usergroup[$perm] = $access;
}
}
}
}

return $usergroup;
}

/**
* Fetch the display group properties for a specific display group
*
* @param int The group ID to fetch the display properties for
* @return array Array of display properties for the group
*/
function usergroup_displaygroup($gid)
{
global $cache, $groupscache, $displaygroupfields;

if(!is_array($groupscache))
{
$groupscache = $cache->read("usergroups");
}

$displaygroup = array();
$group = $groupscache[$gid];

foreach($displaygroupfields as $field)
{
$displaygroup[$field] = $group[$field];
}

return $displaygroup;
}

/**
* Build the forum permissions for a specific forum, user or group
*
* @param int The forum ID to build permissions for (0 builds for all forums)
* @param int The user to build the permissions for (0 will select the uid automatically)
* @param int The group of the user to build permissions for (0 will fetch it)
* @return array Forum permissions for the specific forum or forums
*/
function forum_permissions($fid=0, $uid=0, $gid=0)
{
global $db, $cache, $groupscache, $forum_cache, $fpermcache, $mybb, $usercache, $cached_forum_permissions_permissions, $cached_forum_permissions;

if($uid == 0)
{
$uid = $mybb->user['uid'];
}

if(!$gid || $gid == 0) // If no group, we need to fetch it
{
if($uid != 0 && $uid != $mybb->user['uid'])
{
if(!$usercache[$uid])
{
$query = $db->simple_select("users", "*", "uid='$uid'");
$usercache[$uid] = $db->fetch_array($query);
}

$gid = $usercache[$uid]['usergroup'].",".$usercache[$uid]['additionalgroups'];
$groupperms = usergroup_permissions($gid);
}
else
{
$gid = $mybb->user['usergroup'];

if(isset($mybb->user['additionalgroups']))
{
$gid .= ",".$mybb->user['additionalgroups'];
}

$groupperms = $mybb->usergroup;
}
}

if(!is_array($forum_cache))
{
$forum_cache = cache_forums();

if(!$forum_cache)
{
return false;
}
}

if(!is_array($fpermcache))
{
$fpermcache = $cache->read("forumpermissions");
}

if($fid) // Fetch the permissions for a single forum
{
if(!$cached_forum_permissions_permissions[$gid][$fid])
{
$cached_forum_permissions_permissions[$gid][$fid] = fetch_forum_permissions($fid, $gid, $groupperms);
}
return $cached_forum_permissions_permissions[$gid][$fid];
}
else
{
if(!$cached_forum_permissions[$gid])
{
foreach($forum_cache as $forum)
{
$cached_forum_permissions[$gid][$forum['fid']] = fetch_forum_permissions($forum['fid'], $gid, $groupperms);
}
}
return $cached_forum_permissions[$gid];
}
}

/**
* Fetches the permissions for a specific forum/group applying the inheritance scheme.
* Called by forum_permissions()
*
* @param int The forum ID
* @param string A comma separated list of usergroups
* @param array Group permissions
* @return array Permissions for this forum
*/
function fetch_forum_permissions($fid, $gid, $groupperms)
{
global $groupscache, $forum_cache, $fpermcache, $mybb, $fpermfields;

$groups = explode(",", $gid);

if(!$fpermcache[$fid]) // This forum has no custom or inherited permissions so lets just return the group permissions
{
return $groupperms;
}

$current_permissions = array();
$only_view_own_threads = 1;

foreach($groups as $gid)
{
if($groupscache[$gid])
{
$level_permissions = $fpermcache[$fid][$gid];

// If our permissions arn't inherited we need to figure them out
if(empty($level_permissions))
{
$parents = explode(',', $forum_cache[$fid]['parentlist']);
rsort($parents);
if(!empty($parents))
{
foreach($parents as $parent_id)
{
if(!empty($fpermcache[$parent_id][$gid]))
{
$level_permissions = $fpermcache[$parent_id][$gid];
break;
}
}

// If we STILL don't have forum permissions we use the usergroup itself
if(empty($level_permissions))
{
$level_permissions = $groupscache[$gid];
}
}
}

foreach($level_permissions as $permission => $access)
{
if($access >= $current_permissions[$permission] || ($access == "yes" && $current_permissions[$permission] == "no") || !$current_permissions[$permission])
{
$current_permissions[$permission] = $access;
}
}

if(!$level_permissions["canonlyviewownthreads"])
{
$only_view_own_threads = 0;
}
}
}

// Figure out if we can view more than our own threads
if($only_view_own_threads == 0)
{
$current_permissions["canonlyviewownthreads"] = 0;
}

if(count($current_permissions) == 0)
{
$current_permissions = $groupperms;
}
return $current_permissions;
}

/**
* Check the password given on a certain forum for validity
*
* @param int The forum ID
* @param boolean The Parent ID
*/
function check_forum_password($fid, $pid=0)
{
global $mybb, $header, $footer, $headerinclude, $theme, $templates, $lang, $forum_cache;

$showform = true;

if(!is_array($forum_cache))
{
$forum_cache = cache_forums();
if(!$forum_cache)
{
return false;
}
}

// Loop through each of parent forums to ensure we have a password for them too
$parents = explode(',', $forum_cache[$fid]['parentlist']);
rsort($parents);
if(!empty($parents))
{
foreach($parents as $parent_id)
{
if($parent_id == $fid || $parent_id == $pid)
{
continue;
}

if($forum_cache[$parent_id]['password'] != "")
{
check_forum_password($parent_id, $fid);
}
}
}

$password = $forum_cache[$fid]['password'];
if($password)
{
if($mybb->input['pwverify'] && $pid == 0)
{
if($password == $mybb->input['pwverify'])
{
my_setcookie("forumpass[$fid]", md5($mybb->user['uid'].$mybb->input['pwverify']), null, true);
$showform = false;
}
else
{
eval("\$pwnote = \"".$templates->get("forumdisplay_password_wrongpass")."\";");
$showform = true;
}
}
else
{
if(!$mybb->cookies['forumpass'][$fid] || ($mybb->cookies['forumpass'][$fid] && md5($mybb->user['uid'].$password) != $mybb->cookies['forumpass'][$fid]))
{
$showform = true;
}
else
{
$showform = false;
}
}
}
else
{
$showform = false;
}

if($showform)
{
if($pid)
{
header("Location: ".$mybb->settings['bburl']."/".get_forum_link($fid));
}
else
{
$_SERVER['REQUEST_URI'] = htmlspecialchars_uni($_SERVER['REQUEST_URI']);
eval("\$pwform = \"".$templates->get("forumdisplay_password")."\";");
output_page($pwform);
}
exit;
}
}

/**
* Return the permissions for a moderator in a specific forum
*
* @param fid The forum ID
* @param uid The user ID to fetch permissions for (0 assumes current logged in user)
* @param string The parent list for the forum (if blank, will be fetched)
* @return array Array of moderator permissions for the specific forum
*/
function get_moderator_permissions($fid, $uid="0", $parentslist="")
{
global $mybb, $cache, $db;
static $modpermscache;

if($uid < 1)
{
$uid = $mybb->user['uid'];
}

if($uid == 0)
{
return false;
}

if(isset($modpermscache[$fid][$uid]))
{
return $modpermscache[$fid][$uid];
}

if(!$parentslist)
{
$parentslist = explode(',', get_parent_list($fid));
}

// Get user groups
$perms = array();
$user = get_user($uid);

$groups = array($user['usergroup']);

if(!empty($user['additionalgroups']))
{
$extra_groups = explode(",", $user['additionalgroups']);

foreach($extra_groups as $extra_group)
{
$groups[] = $extra_group;
}
}

$mod_cache = $cache->read("moderators");

foreach($mod_cache as $fid => $forum)
{
if(!is_array($forum) || !in_array($fid, $parentslist))
{
// No perms or we're not after this forum
continue;
}

// User settings override usergroup settings
if(is_array($forum['users'][$uid]))
{
$perm = $forum['users'][$uid];
foreach($perm as $action => $value)
{
if(strpos($action, "can") === false)
{
continue;
}

// Figure out the user permissions
if($value == 0)
{
// The user doesn't have permission to set this action
$perms[$action] = 0;
}
else
{
$perms[$action] = max($perm[$action], $perms[$action]);
}
}
}

foreach($groups as $group)
{
if(!is_array($forum['usergroups'][$group]))
{
// There are no permissions set for this group
continue;
}

$perm = $forum['usergroups'][$group];
foreach($perm as $action => $value)
{
if(strpos($action, "can") === false)
{
continue;
}

$perms[$action] = max($perm[$action], $perms[$action]);
}
}
}

$modpermscache[$fid][$uid] = $perms;

return $perms;
}

/**
* Checks if a moderator has permissions to perform an action in a specific forum
*
* @param int The forum ID (0 assumes global)
* @param string The action tyring to be performed. (blank assumes any action at all)
* @param int The user ID (0 assumes current user)
* @return bool Returns true if the user has permission, false if they do not
*/
function is_moderator($fid="0", $action="", $uid="0")
{
global $mybb, $cache;

if($uid == 0)
{
$uid = $mybb->user['uid'];
}

if($uid == 0)
{
return false;
}

$user_perms = user_permissions($uid);
if($user_perms['issupermod'] == 1)
{
return true;
}
else
{
if(!$fid)
{
$modcache = $cache->read('moderators');
if(!empty($modcache))
{
foreach($modcache as $modusers)
{
if(isset($modusers['users'][$uid]) && $modusers['users'][$uid]['mid'])
{
return true;
}
elseif(isset($modusers['usergroups'][$user_perms['gid']]))
{
// Moderating usergroup
return true;
}
}
}
return false;
}
else
{
$modperms = get_moderator_permissions($fid, $uid);

if(!$action && $modperms)
{
return true;
}
else
{
if($modperms[$action] == 1)
{
return true;
}
else
{
return false;
}
}
}
}
}

/**
* Generate a list of the posticons.
*
* @return string The template of posticons.
*/
function get_post_icons()
{
global $mybb, $cache, $icon, $theme, $templates, $lang;

$listed = 0;
if($mybb->input['icon'])
{
$icon = $mybb->input['icon'];
}

$no_icons_checked = " checked=\"checked\"";
// read post icons from cache, and sort them accordingly
$posticons_cache = $cache->read("posticons");
$posticons = array();
foreach($posticons_cache as $posticon)
{
$posticons[$posticon['name']] = $posticon;
}
krsort($posticons);

foreach($posticons as $dbicon)
{
$dbicon['path'] = htmlspecialchars_uni($dbicon['path']);
$dbicon['name'] = htmlspecialchars_uni($dbicon['name']);

if($icon == $dbicon['iid'])
{
$iconlist .= "<label><input type=\"radio\" name=\"icon\" value=\"".$dbicon['iid']."\" checked=\"checked\" /> <img src=\"".$dbicon['path']."\" alt=\"".$dbicon['name']."\" /></label>";
$no_icons_checked = "";
}
else
{
$iconlist .= "<label><input type=\"radio\" name=\"icon\" value=\"".$dbicon['iid']."\" /> <img src=\"".$dbicon['path']."\" alt=\"".$dbicon['name']."\" /></label>";
}

++$listed;
if($listed == 10)
{
$iconlist .= "<br />";
$listed = 0;
}
}

eval("\$posticons = \"".$templates->get("posticons")."\";");

return $posticons;
}

/**
* MyBB setcookie() wrapper.
*
* @param string The cookie identifier.
* @param string The cookie value.
* @param int The timestamp of the expiry date.
* @param boolean True if setting a HttpOnly cookie (supported by IE, Opera 9, Konqueror)
*/
function my_setcookie($name, $value="", $expires="", $httponly=false)
{
global $mybb;

if(!$mybb->settings['cookiepath'])
{
$mybb->settings['cookiepath'] = "/";
}

if($expires == -1)
{
$expires = 0;
}
elseif($expires == "" || $expires == null)
{
$expires = TIME_NOW + (60*60*24*365); // Make the cookie expire in a years time
}
else
{
$expires = TIME_NOW + intval($expires);
}

$mybb->settings['cookiepath'] = str_replace(array("\n","\r"), "", $mybb->settings['cookiepath']);
$mybb->settings['cookiedomain'] = str_replace(array("\n","\r"), "", $mybb->settings['cookiedomain']);
$mybb->settings['cookieprefix'] = str_replace(array("\n","\r", " "), "", $mybb->settings['cookieprefix']);

// Versions of PHP prior to 5.2 do not support HttpOnly cookies and IE is buggy when specifying a blank domain so set the cookie manually
$cookie = "Set-Cookie: {$mybb->settings['cookieprefix']}{$name}=".urlencode($value);

if($expires > 0)
{
$cookie .= "; expires="[email protected]('D, d-M-Y H:i:s \\G\\M\\T', $expires);
}

if(!empty($mybb->settings['cookiepath']))
{
$cookie .= "; path={$mybb->settings['cookiepath']}";
}

if(!empty($mybb->settings['cookiedomain']))
{
$cookie .= "; domain={$mybb->settings['cookiedomain']}";
}

if($httponly == true)
{
$cookie .= "; HttpOnly";
}

$mybb->cookies[$name] = $value;

header($cookie, false);
}

/**
* Unset a cookie set by MyBB.
*
* @param string The cookie identifier.
*/
function my_unsetcookie($name)
{
global $mybb;

$expires = -3600;
my_setcookie($name, "", $expires);

unset($mybb->cookies[$name]);
}

/**
* Get the contents from a serialised cookie array.
*
* @param string The cookie identifier.
* @param int The cookie content id.
* @return array|boolean The cookie id's content array or false when non-existent.
*/
function my_get_array_cookie($name, $id)
{
global $mybb;

if(!isset($mybb->cookies['mybb'][$name]))
{
return false;
}

$cookie = unserialize($mybb->cookies['mybb'][$name]);

if(is_array($cookie) && isset($cookie[$id]))
{
return $cookie[$id];
}
else
{
return 0;
}
}

/**
* Set a serialised cookie array.
*
* @param string The cookie identifier.
* @param int The cookie content id.
* @param string The value to set the cookie to.
*/
function my_set_array_cookie($name, $id, $value, $expires="")
{
global $mybb;

$cookie = $mybb->cookies['mybb'];
$newcookie = unserialize($cookie[$name]);

if(!is_array($newcookie))
{
// Burnt / malformed cookie - reset
$newcookie = array();
}

$newcookie[$id] = $value;
$newcookie = serialize($newcookie);
my_setcookie("mybb[$name]", addslashes($newcookie), $expires);

// Make sure our current viarables are up-to-date as well
$mybb->cookies['mybb'][$name] = $newcookie;
}

/**
* Returns the serverload of the system.
*
* @return int The serverload of the system.
*/
function get_server_load()
{
global $lang;

$serverload = array();

// DIRECTORY_SEPARATOR checks if running windows
if(DIRECTORY_SEPARATOR != '\\')
{
if(function_exists("sys_getloadavg"))
{
// sys_getloadavg() will return an array with [0] being load within the last minute.
$serverload = sys_getloadavg();
$serverload[0] = round($serverload[0], 4);
}
else if(@file_exists("/proc/loadavg") && $load = @file_get_contents("/proc/loadavg"))
{
$serverload = explode(" ", $load);
$serverload[0] = round($serverload[0], 4);
}
if(!is_numeric($serverload[0]))
{
if(@ini_get('safe_mode') == 'On')
{
return $lang->unknown;
}

// Suhosin likes to throw a warning if exec is disabled then die - weird
if($func_blacklist = @ini_get('suhosin.executor.func.blacklist'))
{
if(strpos(",".$func_blacklist.",", 'exec') !== false)
{
return $lang->unknown;
}
}
// PHP disabled functions?
if($func_blacklist = @ini_get('disable_functions'))
{
if(strpos(",".$func_blacklist.",", 'exec') !== false)
{
return $lang->unknown;
}
}

$load = @exec("uptime");
$load = explode("load average: ", $load);
$serverload = explode(",", $load[1]);
if(!is_array($serverload))
{
return $lang->unknown;
}
}
}
else
{
return $lang->unknown;
}

$returnload = trim($serverload[0]);

return $returnload;
}

/**
* Updates the forum statistics with specific values (or addition/subtraction of the previous value)
*
* @param array Array of items being updated (numthreads,numposts,numusers)
*/
function update_stats($changes=array())
{
global $cache, $db;

$stats = $cache->read("stats");

$counters = array('numthreads','numunapprovedthreads','numposts','numunapprovedposts','numusers');
$update = array();
foreach($counters as $counter)
{
if(array_key_exists($counter, $changes))
{
// Adding or subtracting from previous value?
if(substr($changes[$counter], 0, 1) == "+" || substr($changes[$counter], 0, 1) == "-")
{
if(intval($changes[$counter]) != 0)
{
$new_stats[$counter] = $stats[$counter] + $changes[$counter];
}
}
else
{
$new_stats[$counter] = $changes[$counter];
}
// Less than 0? That's bad
if($new_stats[$counter] < 0)
{
$new_stats[$counter] = 0;
}
}
}

// Fetch latest user if the user count is changing
if(array_key_exists('numusers', $changes))
{
$query = $db->simple_select("users", "uid, username", "", array('order_by' => 'uid', 'order_dir' => 'DESC', 'limit' => 1));
$lastmember = $db->fetch_array($query);
$new_stats['lastuid'] = $lastmember['uid'];
$new_stats['lastusername'] = $lastmember['username'];
}

if(empty($new_stats))
{
return;
}

if(is_array($stats))
{
$stats = array_merge($stats, $new_stats);
}
else
{
$stats = $new_stats;
}

// Update stats row for today in the database
$todays_stats = array(
"dateline" => mktime(0, 0, 0, date("m"), date("j"), date("Y")),
"numusers" => $stats['numusers'],
"numthreads" => $stats['numthreads'],
"numposts" => $stats['numposts']
);
$db->replace_query("stats", $todays_stats, "dateline");

$cache->update("stats", $stats, "dateline");
}

/**
* Updates the forum counters with a specific value (or addition/subtraction of the previous value)
*
* @param int The forum ID
* @param array Array of items being updated (threads, posts, unapprovedthreads, unapprovedposts) and their value (ex, 1, +1, -1)
*/
function update_forum_counters($fid, $changes=array())
{
global $db, $cache;

$update_query = array();

$counters = array('threads','unapprovedthreads','posts','unapprovedposts');

// Fetch above counters for this forum
$query = $db->simple_select("forums", implode(",", $counters), "fid='{$fid}'");
$forum = $db->fetch_array($query);

foreach($counters as $counter)
{
if(array_key_exists($counter, $changes))
{
// Adding or subtracting from previous value?
if(substr($changes[$counter], 0, 1) == "+" || substr($changes[$counter], 0, 1) == "-")
{
$update_query[$counter] = $forum[$counter] + $changes[$counter];
}
else
{
$update_query[$counter] = $changes[$counter];
}

// Less than 0? That's bad
if(!$update_query[$counter])
{
$update_query[$counter] = 0;
}
}
}

// Only update if we're actually doing something
if(count($update_query) > 0)
{
$db->update_query("forums", $update_query, "fid='".intval($fid)."'");
}

// Guess we should update the statistics too?
if(isset($update_query['threads']) || isset($update_query['posts']) || isset($update_query['unapprovedthreads']) || isset($update_query['unapprovedposts']))
{
$new_stats = array();
if(array_key_exists('threads', $update_query))
{
$threads_diff = $update_query['threads'] - $forum['threads'];
if($threads_diff > -1)
{
$new_stats['numthreads'] = "+{$threads_diff}";
}
else
{
$new_stats['numthreads'] = "{$threads_diff}";
}
}

if(array_key_exists('unapprovedthreads', $update_query))
{
$unapprovedthreads_diff = $update_query['unapprovedthreads'] - $forum['unapprovedthreads'];
if($unapprovedthreads_diff > -1)
{
$new_stats['numunapprovedthreads'] = "+{$unapprovedthreads_diff}";
}
else
{
$new_stats['numunapprovedthreads'] = "{$unapprovedthreads_diff}";
}
}

if(array_key_exists('posts', $update_query))
{
$posts_diff = $update_query['posts'] - $forum['posts'];
if($posts_diff > -1)
{
$new_stats['numposts'] = "+{$posts_diff}";
}
else
{
$new_stats['numposts'] = "{$posts_diff}";
}
}

if(array_key_exists('unapprovedposts', $update_query))
{
$unapprovedposts_diff = $update_query['unapprovedposts'] - $forum['unapprovedposts'];
if($unapprovedposts_diff > -1)
{
$new_stats['numunapprovedposts'] = "+{$unapprovedposts_diff}";
}
else
{
$new_stats['numunapprovedposts'] = "{$unapprovedposts_diff}";
}
}
update_stats($new_stats);
}

// Update last post info
update_forum_lastpost($fid);

$cache->update_forums();
}

/**
* Update the last post information for a specific forum
*
* @param int The forum ID
*/
function update_forum_lastpost($fid)
{
global $db;

// Fetch the last post for this forum
$query = $db->query("
SELECT tid, lastpost, lastposter, lastposteruid, subject
FROM ".TABLE_PREFIX."threads
WHERE fid='{$fid}' AND visible='1' AND closed NOT LIKE 'moved|%'
ORDER BY lastpost DESC
LIMIT 0, 1
");
$lastpost = $db->fetch_array($query);

$updated_forum = array(
"lastpost" => intval($lastpost['lastpost']),
"lastposter" => $db->escape_string($lastpost['lastposter']),
"lastposteruid" => intval($lastpost['lastposteruid']),
"lastposttid" => intval($lastpost['tid']),
"lastpostsubject" => $db->escape_string($lastpost['subject'])
);

$db->update_query("forums", $updated_forum, "fid='{$fid}'");
}

/**
* Updates the thread counters with a specific value (or addition/subtraction of the previous value)
*
* @param int The thread ID
* @param array Array of items being updated (replies, unapprovedposts, attachmentcount) and their value (ex, 1, +1, -1)
*/
function update_thread_counters($tid, $changes=array())
{
global $db;

$update_query = array();

$counters = array('replies','unapprovedposts','attachmentcount', 'attachmentcount');

// Fetch above counters for this thread
$query = $db->simple_select("threads", implode(",", $counters), "tid='{$tid}'");
$thread = $db->fetch_array($query);

foreach($counters as $counter)
{
if(array_key_exists($counter, $changes))
{
// Adding or subtracting from previous value?
if(substr($changes[$counter], 0, 1) == "+" || substr($changes[$counter], 0, 1) == "-")
{
$update_query[$counter] = $thread[$counter] + $changes[$counter];
}
else
{
$update_query[$counter] = $changes[$counter];
}

// Less than 0? That's bad
if($update_query[$counter] < 0)
{
$update_query[$counter] = 0;
}
}
}

$db->free_result($query);

// Only update if we're actually doing something
if(count($update_query) > 0)
{
$db->update_query("threads", $update_query, "tid='".intval($tid)."'");
}

unset($update_query, $thread);

update_thread_data($tid);
}

/**
* Update the first post and lastpost data for a specific thread
*
* @param int The thread ID
*/
function update_thread_data($tid)
{
global $db;
$query = $db->query("
SELECT u.uid, u.username, p.username AS postusername, p.dateline
FROM ".TABLE_PREFIX."posts p
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=p.uid)
WHERE p.tid='$tid' AND p.visible='1'
ORDER BY p.dateline DESC
LIMIT 1"
);
$lastpost = $db->fetch_array($query);

$db->free_result($query);

$query = $db->query("
SELECT u.uid, u.username, p.username AS postusername, p.dateline
FROM ".TABLE_PREFIX."posts p
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=p.uid)
WHERE p.tid='$tid'
ORDER BY p.dateline ASC
LIMIT 1
");
$firstpost = $db->fetch_array($query);

$db->free_result($query);

if(!$firstpost['username'])
{
$firstpost['username'] = $firstpost['postusername'];
}

if(!$lastpost['username'])
{
$lastpost['username'] = $lastpost['postusername'];
}

if(!$lastpost['dateline'])
{
$lastpost['username'] = $firstpost['username'];
$lastpost['uid'] = $firstpost['uid'];
$lastpost['dateline'] = $firstpost['dateline'];
}

$lastpost['username'] = $db->escape_string($lastpost['username']);
$firstpost['username'] = $db->escape_string($firstpost['username']);

$update_array = array(
'username' => $firstpost['username'],
'uid' => intval($firstpost['uid']),
'dateline' => intval($firstpost['dateline']),
'lastpost' => intval($lastpost['dateline']),
'lastposter' => $lastpost['username'],
'lastposteruid' => intval($lastpost['uid']),
);
$db->update_query("threads", $update_array, "tid='{$tid}'");

unset($firstpost, $lastpost, $update_array);
}

function update_forum_count($fid)
{
die("Deprecated function call: update_forum_count");
}
function update_thread_count($tid)
{
die("Deprecated function call: update_thread_count");
}
function update_thread_attachment_count($tid)
{
die("Deprecated function call: update_thread_attachment_count");
}

/**
* Deletes a thread from the database
*
* @param int The thread ID
*/
function delete_thread($tid)
{
global $moderation;

if(!is_object($moderation))
{
require_once MYBB_ROOT."inc/class_moderation.php";
$moderation = new Moderation;
}

return $moderation->delete_thread($tid);
}

/**
* Deletes a post from the database
*
* @param int The thread ID
*/
function delete_post($pid, $tid="")
{
global $moderation;

if(!is_object($moderation))
{
require_once MYBB_ROOT."inc/class_moderation.php";
$moderation = new Moderation;
}

return $moderation->delete_post($pid);
}

/**
* Builds a forum jump menu
*
* @param int The parent forum to start with
* @param int The selected item ID
* @param int If we need to add select boxes to this cal or not
* @param int The current depth of forums we're at
* @param int Whether or not to show extra items such as User CP, Forum home
* @param boolean Ignore the showinjump setting and show all forums (for moderation pages)
* @param array Array of permissions
* @param string The name of the forum jump
* @return string Forum jump items
*/
function build_forum_jump($pid="0", $selitem="", $addselect="1", $depth="", $showextras="1", $showall=false, $permissions="", $name="fid")
{
global $forum_cache, $jumpfcache, $permissioncache, $mybb, $selecteddone, $forumjump, $forumjumpbits, $gobutton, $theme, $templates, $lang;

$pid = intval($pid);

if($permissions)
{
$permissions = $mybb->usergroup;
}

if(!is_array($jumpfcache))
{
if(!is_array($forum_cache))
{
cache_forums();
}

foreach($forum_cache as $fid => $forum)
{
if($forum['active'] != 0)
{
$jumpfcache[$forum['pid']][$forum['disporder']][$forum['fid']] = $forum;
}
}
}

if(!is_array($permissioncache))
{
$permissioncache = forum_permissions();
}

if(is_array($jumpfcache[$pid]))
{
foreach($jumpfcache[$pid] as $main)
{
foreach($main as $forum)
{
$perms = $permissioncache[$forum['fid']];

if($forum['fid'] != "0" && ($perms['canview'] != 0 || $mybb->settings['hideprivateforums'] == 0) && $forum['linkto'] == '' && ($forum['showinjump'] != 0 || $showall == true))
{
$optionselected = "";

if($selitem == $forum['fid'])
{
$optionselected = "selected=\"selected\"";
$selecteddone = 1;
}

$forum['name'] = htmlspecialchars_uni(strip_tags($forum['name']));

eval("\$forumjumpbits .= \"".$templates->get("forumjump_bit")."\";");

if($forum_cache[$forum['fid']])
{
$newdepth = $depth."--";
$forumjumpbits .= build_forum_jump($forum['fid'], $selitem, 0, $newdepth, $showextras, $showall);
}
}
}
}
}

if($addselect)
{
if(!$selecteddone)
{
if(!$selitem)
{
$selitem = "default";
}

$jumpsel[$selitem] = 'selected="selected"';
}

if($showextras == 0)
{
$template = "special";
}
else
{
$template = "advanced";
}

eval("\$forumjump = \"".$templates->get("forumjump_".$template)."\";");
}

return $forumjump;
}

/**
* Returns the extension of a file.
*
* @param string The filename.
* @return string The extension of the file.
*/
function get_extension($file)
{
return my_strtolower(my_substr(strrchr($file, "."), 1));
}

/**
* Generates a random string.
*
* @param int The length of the string to generate.
* @return string The random string.
*/
function random_str($length="8")
{
$set = array("a","A","b","B","c","C","d","D","e","E","f","F","g","G","h","H","i","I","j","J","k","K","l","L","m","M","n","N","o","O","p","P","q","Q","r","R","s","S","t","T","u","U","v","V","w","W","x","X","y","Y","z","Z","1","2","3","4","5","6","7","8","9");
$str = '';

for($i = 1; $i <= $length; ++$i)
{
$ch = my_rand(0, count($set)-1);
$str .= $set[$ch];
}

return $str;
}

/**
* Formats a username based on their display group
*
* @param string The username
* @param int The usergroup for the user (if not specified, will be fetched)
* @param int The display group for the user (if not specified, will be fetched)
* @return string The formatted username
*/
function format_name($username, $usergroup, $displaygroup="")
{
global $groupscache, $cache;

if(!is_array($groupscache))
{
$groupscache = $cache->read("usergroups");
}

if($displaygroup != 0)
{
$usergroup = $displaygroup;
}

$ugroup = $groupscache[$usergroup];
$format = $ugroup['namestyle'];
$userin = substr_count($format, "{username}");

if($userin == 0)
{
$format = "{username}";
}

$format = stripslashes($format);

return str_replace("{username}", $username, $format);
}

/**
* Build the javascript based MyCode inserter
*
* @return string The MyCode inserter
*/
function build_mycode_inserter($bind="message")
{
global $db, $mybb, $theme, $templates, $lang, $plugins;

if($mybb->settings['bbcodeinserter'] != 0)
{
$editor_lang_strings = array(
"editor_title_bold",
"editor_title_italic",
"editor_title_underline",
"editor_title_left",
"editor_title_center",
"editor_title_right",
"editor_title_justify",
"editor_title_numlist",
"editor_title_bulletlist",
"editor_title_image",
"editor_title_hyperlink",
"editor_title_email",
"editor_title_quote",
"editor_title_code",
"editor_title_php",
"editor_title_close_tags",
"editor_enter_list_item",
"editor_enter_url",
"editor_enter_url_title",
"editor_enter_email",
"editor_enter_email_title",
"editor_enter_image",
"editor_enter_video_url",
"editor_video_dailymotion",
"editor_video_metacafe",
"editor_video_myspacetv",
"editor_video_vimeo",
"editor_video_yahoo",
"editor_video_youtube",
"editor_size_xx_small",
"editor_size_x_small",
"editor_size_small",
"editor_size_medium",
"editor_size_large",
"editor_size_x_large",
"editor_size_xx_large",
"editor_font",
"editor_size",
"editor_color"
);
$editor_language = "var editor_language = {\n";

$editor_lang_strings = $plugins->run_hooks("mycode_add_codebuttons", $editor_lang_strings);

foreach($editor_lang_strings as $key => $lang_string)
{
// Strip initial editor_ off language string if it exists - ensure case sensitivity does not matter.
$js_lang_string = preg_replace("#^editor_#i", "", $lang_string);
$string = str_replace("\"", "\\\"", $lang->$lang_string);
$editor_language .= "\t{$js_lang_string}: \"{$string}\"";

if($editor_lang_strings[$key+1])
{
$editor_language .= ",";
}

$editor_language .= "\n";
}

$editor_language .= "};";

if(defined("IN_ADMINCP"))
{
global $page;
$codeinsert = $page->build_codebuttons_editor($bind, $editor_language);
}
else
{
eval("\$codeinsert = \"".$templates->get("codebuttons")."\";");
}
}

return $codeinsert;
}

/**
* Build the javascript clickable smilie inserter
*
* @return string The clickable smilies list
*/
function build_clickable_smilies()
{
global $cache, $smiliecache, $theme, $templates, $lang, $mybb, $smiliecount;

if($mybb->settings['smilieinserter'] != 0 && $mybb->settings['smilieinsertercols'] && $mybb->settings['smilieinsertertot'])
{
if(!$smiliecount)
{
$smilie_cache = $cache->read("smilies");
$smiliecount = count($smilie_cache);
}

if(!$smiliecache)
{
if(!is_array($smilie_cache))
{
$smilie_cache = $cache->read("smilies");
}
foreach($smilie_cache as $smilie)
{
if($smilie['showclickable'] != 0)
{
$smiliecache[$smilie['find']] = $smilie['image'];
}
}
}

unset($smilie);

if(is_array($smiliecache))
{
reset($smiliecache);

if($mybb->settings['smilieinsertertot'] >= $smiliecount)
{
$mybb->settings['smilieinsertertot'] = $smiliecount;
}
else if($mybb->settings['smilieinsertertot'] < $smiliecount)
{
$smiliecount = $mybb->settings['smilieinsertertot'];
eval("\$getmore = \"".$templates->get("smilieinsert_getmore")."\";");
}

$smilies = "";
$counter = 0;
$i = 0;

foreach($smiliecache as $find => $image)
{
if($i < $mybb->settings['smilieinsertertot'])
{
if($counter == 0)
{
$smilies .= "<tr>\n";
}

$find = htmlspecialchars_uni($find);
$smilies .= "<td style=\"text-align: center\"><img src=\"{$image}\" border=\"0\" class=\"smilie\" alt=\"{$find}\" /></td>\n";
++$i;
++$counter;

if($counter == $mybb->settings['smilieinsertercols'])
{
$counter = 0;
$smilies .= "</tr>\n";
}
}
}

if($counter != 0)
{
$colspan = $mybb->settings['smilieinsertercols'] - $counter;
$smilies .= "<td colspan=\"{$colspan}\">&nbsp;</td>\n</tr>\n";
}

eval("\$clickablesmilies = \"".$templates->get("smilieinsert")."\";");
}
else
{
$clickablesmilies = "";
}
}
else
{
$clickablesmilies = "";
}

return $clickablesmilies;
}

/**
* Builds thread prefixes and returns a selected prefix (or all)
*
* @param int The prefix ID (0 to return all)
* @return array The thread prefix's values (or all thread prefixes)
*/
function build_prefixes($pid=0)
{
global $cache;
static $prefixes_cache;

if(is_array($prefixes_cache))
{
if($pid > 0 && is_array($prefixes_cache[$pid]))
{
return $prefixes_cache[$pid];
}

return $prefixes_cache;
}

$prefix_cache = $cache->read("threadprefixes");

if(!is_array($prefix_cache))
{
// No cache
$prefix_cache = $cache->read("threadprefixes", true);

if(!is_array($prefix_cache))
{
return array();
}
}

$prefixes_cache = array();
foreach($prefix_cache as $prefix)
{
$prefixes_cache[$prefix['pid']] = $prefix;
}

if($pid != 0 && is_array($prefixes_cache[$pid]))
{
return $prefixes_cache[$pid];
}
else if(!empty($prefixes_cache))
{
return $prefixes_cache;
}

return false;
}

/**
* Build the thread prefix selection menu
*
* @param mixed The forum ID (integer ID or string all)
* @param mixed The selected prefix ID (integer ID or string any)
* @return string The thread prefix selection menu
*/
function build_prefix_select($fid, $selected_pid=0, $multiple=0)
{
global $cache, $db, $lang, $mybb;

if($fid != 'all')
{
$fid = intval($fid);
}

$prefix_cache = build_prefixes(0);
if(!$prefix_cache)
{
return false; // We've got no prefixes to show
}

$groups = array($mybb->user['usergroup']);
if($mybb->user['additionalgroups'])
{
$exp = explode(",", $mybb->user['additionalgroups']);

foreach($exp as $group)
{
$groups[] = $group;
}
}

// Go through each of our prefixes and decide which ones we can use
$prefixes = array();
foreach($prefix_cache as $prefix)
{
if($fid != "all" && $prefix['forums'] != "-1")
{
// Decide whether this prefix can be used in our forum
$forums = explode(",", $prefix['forums']);

if(!in_array($fid, $forums))
{
// This prefix is not in our forum list
continue;
}
}

if($prefix['groups'] != "-1")
{
$prefix_groups = explode(",", $prefix['groups']);

foreach($groups as $group)
{
if(in_array($group, $prefix_groups) && !isset($prefixes[$prefix['pid']]))
{
// Our group can use this prefix!
$prefixes[$prefix['pid']] = $prefix;
}
}
}
else
{
// This prefix is for anybody to use...
$prefixes[$prefix['pid']] = $prefix;
}
}

if(empty($prefixes))
{
return false;
}

$prefixselect = "";
$multipleselect = "";
if($multiple != 0)
{
$multipleselect = " multiple=\"multiple\" size=\"5\"";
}

$prefixselect = "<select name=\"threadprefix\"{$multipleselect}>\n";

if($multiple == 1)
{
$any_selected = "";
if($selected_pid == 'any')
{
$any_selected = " selected=\"selected\"";
}

$prefixselect .= "<option value=\"any\"".$any_selected.">".$lang->any_prefix."</option>\n";
}

$default_selected = "";
if((intval($selected_pid) == 0) && $selected_pid != 'any')
{
$default_selected = " selected=\"selected\"";
}

$prefixselect .= "<option value=\"0\"".$default_selected.">".$lang->no_prefix."</option>\n";

foreach($prefixes as $prefix)
{
$selected = "";
if($prefix['pid'] == $selected_pid)
{
$selected = " selected=\"selected\"";
}

$prefixselect .= "<option value=\"".$prefix['pid']."\"".$selected.">".htmlspecialchars_uni($prefix['prefix'])."</option>\n";
}

$prefixselect .= "</select>\n&nbsp;";

return $prefixselect;
}

/**
* Gzip encodes text to a specified level
*
* @param string The string to encode
* @param int The level (1-9) to encode at
* @return string The encoded string
*/
function gzip_encode($contents, $level=1)
{
if(function_exists("gzcompress") && function_exists("crc32") && !headers_sent() && !(ini_get('output_buffering') && my_strpos(' '.ini_get('output_handler'), 'ob_gzhandler')))
{
$httpaccept_encoding = '';

if(isset($_SERVER['HTTP_ACCEPT_ENCODING']))
{
$httpaccept_encoding = $_SERVER['HTTP_ACCEPT_ENCODING'];
}

if(my_strpos(" ".$httpaccept_encoding, "x-gzip"))
{
$encoding = "x-gzip";
}

if(my_strpos(" ".$httpaccept_encoding, "gzip"))
{
$encoding = "gzip";
}

if(isset($encoding))
{
header("Content-Encoding: $encoding");

if(function_exists("gzencode"))
{
$contents = gzencode($contents, $level);
}
else
{
$size = strlen($contents);
$crc = crc32($contents);
$gzdata = "\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff";
$gzdata .= my_substr(gzcompress($contents, $level), 2, -4);
$gzdata .= pack("V", $crc);
$gzdata .= pack("V", $size);
$contents = $gzdata;
}
}
}

return $contents;
}

/**
* Log the actions of a moderator.
*
* @param array The data of the moderator's action.
* @param string The message to enter for the action the moderator performed.
*/
function log_moderator_action($data, $action="")
{
global $mybb, $db, $session;

// If the fid or tid is not set, set it at 0 so MySQL doesn't choke on it.
if($data['fid'] == '')
{
$fid = 0;
}
else
{
$fid = $data['fid'];
unset($data['fid']);
}

if($data['tid'] == '')
{
$tid = 0;
}
else
{
$tid = $data['tid'];
unset($data['tid']);
}

// Any remaining extra data - we serialize and insert in to its own column
if(is_array($data))
{
$data = serialize($data);
}

$time = TIME_NOW;

$sql_array = array(
"uid" => $mybb->user['uid'],
"dateline" => $time,
"fid" => $fid,
"tid" => $tid,
"action" => $db->escape_string($action),
"data" => $db->escape_string($data),
"ipaddress" => $db->escape_string($session->ipaddress)
);
$db->insert_query("moderatorlog", $sql_array);
}

/**
* Get the formatted reputation for a user.
*
* @param int The reputation value
* @param int The user ID (if not specified, the generated reputation will not be a link)
* @return string The formatted repuation
*/
function get_reputation($reputation, $uid=0)
{
global $theme;

if($uid != 0)
{
$display_reputation = "<a href=\"reputation.php?uid={$uid}\">";
}

$display_reputation .= "<strong class=\"";

if($reputation < 0)
{
$display_reputation .= "reputation_negative";
}
elseif($reputation > 0)
{
$display_reputation .= "reputation_positive";
}
else
{
$display_reputation .= "reputation_neutral";
}

$display_reputation .= "\">{$reputation}</strong>";

if($uid != 0)
{
$display_reputation .= "</a>";
}

return $display_reputation;
}

/**
* Fetch a color coded version of a warning level (based on it's percentage)
*
* @param int The warning level (percentage of 100)
* @return string Formatted warning level
*/
function get_colored_warning_level($level)
{
if($level >= 80)
{
return "<span class=\"high_warning\">{$level}%</span>";
}
else if($level >= 50)
{
return "<span class=\"moderate_warning\">{$level}%</span>";
}
else if($level >= 25)
{
return "<span class=\"low_warning\">{$level}%</span>";
}
else
{
return $level."%";
}
}

/**
* Fetch the IP address of the current user.
*
* @return string The IP address.
*/
function get_ip()
{
global $mybb, $plugins;

$ip = 0;

if(!preg_match("#^(10|172\.16|192\.168)\.#", $_SERVER['REMOTE_ADDR']))
{
$ip = $_SERVER['REMOTE_ADDR'];
}

if($mybb->settings['ip_forwarded_check'])
{
if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
{
preg_match_all("#[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}#s", $_SERVER['HTTP_X_FORWARDED_FOR'], $addresses);
}
elseif(isset($_SERVER['HTTP_X_REAL_IP']))
{
preg_match_all("#[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}#s", $_SERVER['HTTP_X_REAL_IP'], $addresses);
}

if(is_array($addresses[0]))
{
foreach($addresses[0] as $key => $val)
{
if(!preg_match("#^(10|172\.16|192\.168)\.#", $val))
{
$ip = $val;
break;
}
}
}
}

if(!$ip)
{
if(isset($_SERVER['HTTP_CLIENT_IP']))
{
$ip = $_SERVER['HTTP_CLIENT_IP'];
}
}

if($plugins)
{
$plugins->run_hooks("get_ip", array("ip" => $ip));
}

return $ip;
}

/**
* Fetch the friendly size (GB, MB, KB, B) for a specified file size.
*
* @param int The size in bytes
* @return string The friendly file size
*/
function get_friendly_size($size)
{
global $lang;

if(!is_numeric($size))
{
return $lang->na;
}

// Yottabyte (1024 Zettabytes)
if($size >= 1208925819614629174706176)
{
$size = my_number_format(round(($size / 1208925819614629174706176), 2))." ".$lang->size_yb;
}
// Zetabyte (1024 Exabytes)
elseif($size >= 1180591620717411303424)
{
$size = my_number_format(round(($size / 1180591620717411303424), 2))." ".$lang->size_zb;
}
// Exabyte (1024 Petabytes)
elseif($size >= 1152921504606846976)
{
$size = my_number_format(round(($size / 1152921504606846976), 2))." ".$lang->size_eb;
}
// Petabyte (1024 Terabytes)
elseif($size >= 1125899906842624)
{
$size = my_number_format(round(($size / 1125899906842624), 2))." ".$lang->size_pb;
}
// Terabyte (1024 Gigabytes)
elseif($size >= 1099511627776)
{
$size = my_number_format(round(($size / 1099511627776), 2))." ".$lang->size_tb;
}
// Gigabyte (1024 Megabytes)
elseif($size >= 1073741824)
{
$size = my_number_format(round(($size / 1073741824), 2))." ".$lang->size_gb;
}
// Megabyte (1024 Kilobytes)
elseif($size >= 1048576)
{
$size = my_number_format(round(($size / 1048576), 2))." ".$lang->size_mb;
}
// Kilobyte (1024 bytes)
elseif($size >= 1024)
{
$size = my_number_format(round(($size / 1024), 2))." ".$lang->size_kb;
}
elseif($size == 0)
{
$size = "0 ".$lang->size_bytes;
}
else
{
$size = my_number_format($size)." ".$lang->size_bytes;
}

return $size;
}

/**
* Get the attachment icon for a specific file extension
*
* @param string The file extension
* @return string The attachment icon
*/
function get_attachment_icon($ext)
{
global $cache, $attachtypes, $theme;

if(!$attachtypes)
{
$attachtypes = $cache->read("attachtypes");
}

$ext = my_strtolower($ext);

if($attachtypes[$ext]['icon'])
{
if(defined("IN_ADMINCP"))
{
$icon = str_replace("{theme}", "", $attachtypes[$ext]['icon']);
if(my_substr($icon, 0, 1) != "/" && my_substr($icon, 0, 7) != "http://")
{
$icon = "../".$icon;
}
}
elseif(defined("IN_PORTAL"))
{
global $change_dir;
$icon = $change_dir."/".str_replace("{theme}", $theme['imgdir'], $attachtypes[$ext]['icon']);
}
else
{
$icon = str_replace("{theme}", $theme['imgdir'], $attachtypes[$ext]['icon']);
}
return "<img src=\"{$icon}\" border=\"0\" alt=\".{$ext}\" />";
}
else
{
if(defined("IN_ADMINCP"))
{
$theme['imgdir'] = "../images";
}
else if(defined("IN_PORTAL"))
{
global $change_dir;
$theme['imgdir'] = "{$change_dir}/images";
}

return "<img src=\"{$theme['imgdir']}/attachtypes/unknown.gif\" border=\"0\" alt=\".{$ext}\" />";
}
}

/**
* Get a list of the unviewable forums for the current user
*
* @param boolean Set to true to only fetch those forums for which users can actually read a thread in.
* @return string Comma separated values list of the forum IDs which the user cannot view
*/
function get_unviewable_forums($only_readable_threads=false)
{
global $forum_cache, $permissioncache, $mybb, $unviewableforums, $unviewable, $templates, $forumpass;

$pid = intval($pid);

if(!$permissions)
{
$permissions = $mybb->usergroup;
}

if(!is_array($forum_cache))
{
cache_forums();
}

if(!is_array($permissioncache))
{
$permissioncache = forum_permissions();
}

$password_forums = array();
foreach($forum_cache as $fid => $forum)
{
if($permissioncache[$forum['fid']])
{
$perms = $permissioncache[$forum['fid']];
}
else
{
$perms = $mybb->usergroup;
}

$pwverified = 1;

if($forum['password'] != "")
{
if($mybb->cookies['forumpass'][$forum['fid']] != md5($mybb->user['uid'].$forum['password']))
{
$pwverified = 0;
}

$password_forums[$forum['fid']] = $forum['password'];
}
else
{
// Check parents for passwords
$parents = explode(",", $forum['parentlist']);
foreach($parents as $parent)
{
if(isset($password_forums[$parent]) && $mybb->cookies['forumpass'][$parent] != md5($mybb->user['uid'].$password_forums[$parent]))
{
$pwverified = 0;
}
}
}

if($perms['canview'] == 0 || $pwverified == 0 || ($only_readable_threads == true && $perms['canviewthreads'] == 0))
{
if($unviewableforums)
{
$unviewableforums .= ",";
}

$unviewableforums .= "'".$forum['fid']."'";
}
}

return $unviewableforums;
}

/**
* Fixes mktime for dates earlier than 1970
*
* @param string The date format to use
* @param int The year of the date
* @return string The correct date format
*/
function fix_mktime($format, $year)
{
// Our little work around for the date < 1970 thing.
// -2 idea provided by Matt Light (http://www.mephex.com)
$format = str_replace("Y", $year, $format);
$format = str_replace("y", my_substr($year, -2), $format);

return $format;
}

/**
* Build the breadcrumb navigation trail from the specified items
*
* @return The formatted breadcrumb navigation trail
*/
function build_breadcrumb()
{
global $nav, $navbits, $templates, $theme, $lang, $mybb;

eval("\$navsep = \"".$templates->get("nav_sep")."\";");

$i = 0;

if(is_array($navbits))
{
reset($navbits);
foreach($navbits as $key => $navbit)
{
if(isset($navbits[$key+1]))
{
if(isset($navbits[$key+2]))
{
$sep = $navsep;
}
else
{
$sep = "";
}

$multipage = null;
$multipage_dropdown = null;
if(!empty($navbit['multipage']))
{
$multipage = multipage($navbit['multipage']['num_threads'], $mybb->settings['threadsperpage'], $navbit['multipage']['current_page'], $navbit['multipage']['url'], true);
if($multipage)
{
++$i;
$multipage_dropdown = " <img src=\"{$theme['imgdir']}/arrow_down.gif\" alt=\"v\" title=\"\" class=\"pagination_breadcrumb_link\" id=\"breadcrumb_multipage\" />{$multipage}";
$sep = $multipage_dropdown.$sep;
}
}

// Replace page 1 URLs
$navbit['url'] = str_replace("-page-1.html", ".html", $navbit['url']);
$navbit['url'] = preg_replace("/&amp;page=1$/", "", $navbit['url']);

eval("\$nav .= \"".$templates->get("nav_bit")."\";");
}
}
}

$navsize = count($navbits);
$navbit = $navbits[$navsize-1];

if($nav)
{
eval("\$activesep = \"".$templates->get("nav_sep_active")."\";");
}

eval("\$activebit = \"".$templates->get("nav_bit_active")."\";");
eval("\$donenav = \"".$templates->get("nav")."\";");

return $donenav;
}

/**
* Add a breadcrumb menu item to the list.
*
* @param string The name of the item to add
* @param string The URL of the item to add
*/
function add_breadcrumb($name, $url="")
{
global $navbits;

$navsize = count($navbits);
$navbits[$navsize]['name'] = $name;
$navbits[$navsize]['url'] = $url;
}

/**
* Build the forum breadcrumb nagiation (the navigation to a specific forum including all parent forums)
*
* @param int The forum ID to build the navigation for
* @param array The multipage drop down array of information
*/
function build_forum_breadcrumb($fid, $multipage=array())
{
global $pforumcache, $currentitem, $forum_cache, $navbits, $lang, $base_url, $archiveurl;

if(!$pforumcache)
{
if(!is_array($forum_cache))
{
cache_forums();
}

foreach($forum_cache as $key => $val)
{
$pforumcache[$val['fid']][$val['pid']] = $val;
}
}

if(is_array($pforumcache[$fid]))
{
foreach($pforumcache[$fid] as $key => $forumnav)
{
if($fid == $forumnav['fid'])
{
if($pforumcache[$forumnav['pid']])
{
build_forum_breadcrumb($forumnav['pid']);
}

$navsize = count($navbits);
// Convert & to &amp;
$navbits[$navsize]['name'] = preg_replace("#&(?!\#[0-9]+Wink#si", "&amp;", $forumnav['name']);

if(IN_ARCHIVE == 1)
{
// Set up link to forum in breadcrumb.
if($pforumcache[$fid][$forumnav['pid']]['type'] == 'f' || $pforumcache[$fid][$forumnav['pid']]['type'] == 'c')
{
$navbits[$navsize]['url'] = "{$base_url}forum-".$forumnav['fid'].".html";
}
else
{
$navbits[$navsize]['url'] = $archiveurl."/index.php";
}
}
elseif(!empty($multipage))
{
$navbits[$navsize]['url'] = get_forum_link($forumnav['fid'], $multipage['current_page']);

$navbits[$navsize]['multipage'] = $multipage;
$navbits[$navsize]['multipage']['url'] = str_replace('{fid}', $forumnav['fid'], FORUM_URL_PAGED);
}
else
{
$navbits[$navsize]['url'] = get_forum_link($forumnav['fid']);
}
}
}
}

return 1;
}

/**
* Resets the breadcrumb navigation to the first item, and clears the rest
*/
function reset_breadcrumb()
{
global $navbits;

$newnav[0]['name'] = $navbits[0]['name'];
$newnav[0]['url'] = $navbits[0]['url'];
$newnav[0]['options'] = $navbits[0]['options'];

unset($GLOBALS['navbits']);
$GLOBALS['navbits'] = $newnav;
}

/**
* Builds a URL to an archive mode page
*
* @param string The type of page (thread|announcement|forum)
* @param int The ID of the item
* @return string The URL
*/
function build_archive_link($type, $id="")
{
global $mybb;

// If the server OS is not Windows and not Apache or the PHP is running as a CGI or we have defined ARCHIVE_QUERY_STRINGS, use query strings - DIRECTORY_SEPARATOR checks if running windows
if((DIRECTORY_SEPARATOR == '\\' && is_numeric(stripos($_SERVER['SERVER_SOFTWARE'], "apache")) == false) || is_numeric(stripos(SAPI_NAME, "cgi")) !== false || defined("ARCHIVE_QUERY_STRINGS"))
{
$base_url = $mybb->settings['bburl']."/archive/index.php?";
}
else
{
$base_url = $mybb->settings['bburl']."/archive/index.php/";
}

switch($type)
{
case "thread":
$url = "{$base_url}thread-{$id}.html";
break;
case "announcement":
$url = "{$base_url}announcement-{$id}.html";
break;
case "forum":
$url = "{$base_url}forum-{$id}.html";
break;
default:
$url = $mybb->settings['bburl']."/archive/index.php";
}

return $url;
}

/**
* Prints a debug information page
*/
function debug_page()
{
global $db, $debug, $templates, $templatelist, $mybb, $maintimer, $globaltime, $ptimer, $parsetime;

$totaltime = $maintimer->totaltime;
$phptime = $maintimer->format($maintimer->totaltime - $db->query_time);
$query_time = $maintimer->format($db->query_time);

$percentphp = number_format((($phptime/$maintimer->totaltime)*100), 2);
$percentsql = number_format((($query_time/$maintimer->totaltime)*100), 2);

$phpversion = PHP_VERSION;

$serverload = get_server_load();

if($mybb->settings['gzipoutput'] != 0)
{
$gzipen = "Enabled";
}
else
{
$gzipen = "Disabled";
}

echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
echo "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">";
echo "<head>";
echo "<title>MyBB Debug Information</title>";
echo "</head>";
echo "<body>";
echo "<h1>MyBB Debug Information</h1>\n";
echo "<h2>Page Generation</h2>\n";
echo "<table bgcolor=\"#666666\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td bgcolor=\"#CCCCCC\" colspan=\"4\"><b><span style=\"size:2;\">Page Generation Statistics</span></b></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Page Generation Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$totaltime seconds</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">No. DB Queries:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$db->query_count</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">PHP Processing Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$phptime seconds ($percentphp%)</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">DB Processing Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$query_time seconds ($percentsql%)</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Extensions Used:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">{$mybb->config['database']['type']}, xml</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Global.php Processing Time:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$globaltime seconds</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">PHP Version:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$phpversion</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Server Load:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$serverload</font></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">GZip Encoding Status:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">$gzipen</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">No. Templates Used:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">".count($templates->cache)." (".intval(count(explode(",", $templatelist)))." Cached / ".intval(count($templates->uncached_templates))." Manually Loaded)</font></td>\n";
echo "</tr>\n";

if(function_exists("memory_get_usage"))
{
$memory_usage = memory_get_peak_usage(true);
$memory_limit = @ini_get("memory_limit");
echo "<tr>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Memory Usage:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">".get_friendly_size($memory_usage)." ({$memory_usage} bytes)</font></td>\n";
echo "<td bgcolor=\"#EFEFEF\" width=\"25%\"><b><font face=\"Tahoma\" size=\"2\">Memory Limit:</font></b></td>\n";
echo "<td bgcolor=\"#FEFEFE\" width=\"25%\"><font face=\"Tahoma\" size=\"2\">{$memory_limit}</font></td>\n";
echo "</tr>\n";
}

echo "</table>\n";

echo "<h2>Database Connections (".count($db->connections)." Total) </h2>\n";
echo "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td style=\"background: #fff;\">".implode("<br />", $db->connections)."</td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<br />\n";

echo "<h2>Database Queries (".$db->query_count." Total) </h2>\n";
echo $db->explain;
echo "<h2>Template Statistics</h2>\n";

if(count($templates->cache) > 0)
{
echo "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td style=\"background-color: #ccc;\"><strong>Templates Used (Loaded for this Page) - ".count($templates->cache)." Total</strong></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td style=\"background: #fff;\">".implode(", ", array_keys($templates->cache))."</td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<br />\n";
}

if(count($templates->uncached_templates > 0))
{
echo "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n";
echo "<tr>\n";
echo "<td style=\"background-color: #ccc;\"><strong>Templates Requiring Additional Calls (Not Cached at Startup) - ".count($templates->uncached_templates)." Total</strong></td>\n";
echo "</tr>\n";
echo "<tr>\n";
echo "<td style=\"background: #fff;\">".implode(", ", $templates->uncached_templates)."</td>\n";
echo "</tr>\n";
echo "</table>\n";
echo "<br />\n";
}
echo "</body>";
echo "</html>";
exit;
}

/**
* Outputs the correct page headers.
*/
function send_page_headers()
{
global $mybb;

if($mybb->settings['nocacheheaders'] == 1)
{
header("Expires: Sat, 1 Jan 2000 01:00:00 GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
}
}

/**
* Mark specific reported posts of a certain type as dealt with
*
* @param mixed An array or int of the ID numbers you're marking as dealt with
* @param string The type of item the above IDs are for - post, posts, thread, threads, forum, all
*/
function mark_reports($id, $type="post")
{
global $db, $cache, $plugins;

switch($type)
{
case "posts":
if(is_array($id))
{
$rids = implode($id, "','");
$rids = "'0','$rids'";
$db->update_query("reportedposts", array('reportstatus' => 1), "pid IN($rids) AND reportstatus='0'");
}
break;
case "post":
$db->update_query("reportedposts", array('reportstatus' => 1), "pid='$id' AND reportstatus='0'");
break;
case "threads":
if(is_array($id))
{
$rids = implode($id, "','");
$rids = "'0','$rids'";
$db->update_query("reportedposts", array('reportstatus' => 1), "tid IN($rids) AND reportstatus='0'");
}
break;
case "thread":
$db->update_query("reportedposts", array('reportstatus' => 1), "tid='$id' AND reportstatus='0'");
break;
case "forum":
$db->update_query("reportedposts", array('reportstatus' => 1), "fid='$id' AND reportstatus='0'");
break;
case "all":
$db->update_query("reportedposts", array('reportstatus' => 1), "reportstatus='0'");
break;
}

$arguments = array('id' => $id, 'type' => $type);
$plugins->run_hooks("mark_reports", $arguments);
$cache->update_reportedposts();
}

/**
* Fetch a friendly x days, y months etc date stamp from a timestamp
*
* @param int The timestamp
* @param array Array of options
* @return string The friendly formatted timestamp
*/
function nice_time($stamp, $options=array())
{
global $lang;

$ysecs = 365*24*60*60;
$mosecs = 31*24*60*60;
$wsecs = 7*24*60*60;
$dsecs = 24*60*60;
$hsecs = 60*60;
$msecs = 60;

if($options['short'] == true)
{
$lang_year = $lang->year_short;
$lang_years = $lang->years_short;
$lang_month = $lang->month_short;
$lang_months = $lang->months_short;
$lang_week = $lang->week_short;
$lang_weeks = $lang->weeks_short;
$lang_day = $lang->day_short;
$lang_days = $lang->days_short;
$lang_hour = $lang->hour_short;
$lang_hours = $lang->hours_short;
$lang_minute = $lang->minute_short;
$lang_minutes = $lang->minutes_short;
$lang_second = $lang->second_short;
$lang_seconds = $lang->seconds_short;
}
else
{
$lang_year = " ".$lang->year;
$lang_years = " ".$lang->years;
$lang_month = " ".$lang->month;
$lang_months = " ".$lang->months;
$lang_week = " ".$lang->week;
$lang_weeks = " ".$lang->weeks;
$lang_day = " ".$lang->day;
$lang_days = " ".$lang->days;
$lang_hour = " ".$lang->hour;
$lang_hours = " ".$lang->hours;
$lang_minute = " ".$lang->minute;
$lang_minutes = " ".$lang->minutes;
$lang_second = " ".$lang->second;
$lang_seconds = " ".$lang->seconds;
}

$years = floor($stamp/$ysecs);
$stamp %= $ysecs;
$months = floor($stamp/$mosecs);
$stamp %= $mosecs;
$weeks = floor($stamp/$wsecs);
$stamp %= $wsecs;
$days = floor($stamp/$dsecs);
$stamp %= $dsecs;
$hours = floor($stamp/$hsecs);
$stamp %= $hsecs;
$minutes = floor($stamp/$msecs);
$stamp %= $msecs;
$seconds = $stamp;

if($years == 1)
{
$nicetime['years'] = "1".$lang_year;
}
else if($years > 1)
{
$nicetime['years'] = $years.$lang_years;
}

if($months == 1)
{
$nicetime['months'] = "1".$lang_month;
}
else if($months > 1)
{
$nicetime['months'] = $months.$lang_months;
}

if($weeks == 1)
{
$nicetime['weeks'] = "1".$lang_week;
}
else if($weeks > 1)
{
$nicetime['weeks'] = $weeks.$lang_weeks;
}

if($days == 1)
{
$nicetime['days'] = "1".$lang_day;
}
else if($days > 1)
{
$nicetime['days'] = $days.$lang_days;
}

if($options['hours'] !== false)
{
if($hours == 1)
{
$nicetime['hours'] = "1".$lang_hour;
}
else if($hours > 1)
{
$nicetime['hours'] = $hours.$lang_hours;
}
}

if($options['minutes'] !== false)
{
if($minutes == 1)
{
$nicetime['minutes'] = "1".$lang_minute;
}
else if($minutes > 1)
{
$nicetime['minutes'] = $minutes.$lang_minutes;
}
}

if($options['seconds'] !== false)
{
if($seconds == 1)
{
$nicetime['seconds'] = "1".$lang_second;
}
else if($seconds > 1)
{
$nicetime['seconds'] = $seconds.$lang_seconds;
}
}

if(is_array($nicetime))
{
return implode(", ", $nicetime);
}
}

/**
* Select an alternating row colour based on the previous call to this function
*
* @param int 1 to reset the row to trow1.
* @return string trow1 or trow2 depending on the previous call
*/
function alt_trow($reset=0)
{
global $alttrow;

if($alttrow == "trow1" && !$reset)
{
$trow = "trow2";
}
else
{
$trow = "trow1";
}

$alttrow = $trow;

return $trow;
}

/**
* Add a user to a specific additional user group.
*
* @param int The user ID
* @param int The user group ID to join
*/
function join_usergroup($uid, $joingroup)
{
global $db, $mybb;

if($uid == $mybb->user['uid'])
{
$user = $mybb->user;
}
else
{
$query = $db->simple_select("users", "additionalgroups, usergroup", "uid='".intval($uid)."'");
$user = $db->fetch_array($query);
}

// Build the new list of additional groups for this user and make sure they're in the right format
$usergroups = "";
$usergroups = $user['additionalgroups'].",".$joingroup;
$groupslist = "";
$groups = explode(",", $usergroups);

if(is_array($groups))
{
foreach($groups as $gid)
{
if(trim($gid) != "" && $gid != $user['usergroup'] && !$donegroup[$gid])
{
$groupslist .= $comma.$gid;
$comma = ",";
$donegroup[$gid] = 1;
}
}
}

// What's the point in updating if they're the same?
if($groupslist != $user['additionalgroups'])
{
$db->update_query("users", array('additionalgroups' => $groupslist), "uid='".intval($uid)."'");
return true;
}
else
{
return false;
}
}

/**
* Remove a user from a specific additional user group
*
* @param int The user ID
* @param int The user group ID
*/
function leave_usergroup($uid, $leavegroup)
{
global $db, $mybb, $cache;

if($uid == $mybb->user['uid'])
{
$user = $mybb->user;
}
else
{
$query = $db->simple_select("users", "*", "uid='".intval($uid)."'");
$user = $db->fetch_array($query);
}

$groupslist = "";
$usergroups = "";
$usergroups = $user['additionalgroups'].",";

$groups = explode(",", $user['additionalgroups']);

if(is_array($groups))
{
foreach($groups as $gid)
{
if(trim($gid) != "" && $leavegroup != $gid && !$donegroup[$gid])
{
$groupslist .= $comma.$gid;
$comma = ",";
$donegroup[$gid] = 1;
}
}
}

$dispupdate = "";
if($leavegroup == $user['displaygroup'])
{
$dispupdate = ", displaygroup=usergroup";
}

$db->write_query("
UPDATE ".TABLE_PREFIX."users
SET additionalgroups='$groupslist' $dispupdate
WHERE uid='".intval($uid)."'
");

$cache->update_moderators();
}

/**
* Get the current location taking in to account different web serves and systems
*
* @param boolean True to return as "hidden" fields
* @param array Array of fields to ignore if first argument is true
* @return string The current URL being accessed
*/
function get_current_location($fields=false, $ignore=array())
{
if(defined("MYBB_LOCATION"))
{
return MYBB_LOCATION;
}

if(!empty($_SERVER['PATH_INFO']))
{
$location = htmlspecialchars_uni($_SERVER['PATH_INFO']);
}
elseif(!empty($_ENV['PATH_INFO']))
{
$location = htmlspecialchars_uni($_ENV['PATH_INFO']);
}
elseif(!empty($_ENV['PHP_SELF']))
{
$location = htmlspecialchars_uni($_ENV['PHP_SELF']);
}
else
{
$location = htmlspecialchars_uni($_SERVER['PHP_SELF']);
}

if($fields == true)
{
global $mybb;

if(!is_array($ignore))
{
$ignore = array($ignore);
}

$form_html = "";
$field_parts = explode('&', $field_parts);

if(!empty($mybb->input))
{
foreach($mybb->input as $name => $value)
{
if(in_array($name, $ignore))
{
continue;
}

$form_html .= "<input type=\"hidden\" name=\"".htmlspecialchars((string)$name)."\" value=\"".htmlspecialchars((string)$value)."\" />\n";
}
}

return array('location' => $location, 'form_html' => $form_html, 'form_method' => $mybb->request_method);
}
else
{
if(isset($_SERVER['QUERY_STRING']))
{
$location .= "?".htmlspecialchars_uni($_SERVER['QUERY_STRING']);
}
else if(isset($_ENV['QUERY_STRING']))
{
$location .= "?".htmlspecialchars_uni($_ENV['QUERY_STRING']);
}

if((isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == "POST") || (isset($_ENV['REQUEST_METHOD']) && $_ENV['REQUEST_METHOD'] == "POST"))
{
$post_array = array('action', 'fid', 'pid', 'tid', 'uid', 'eid');

foreach($post_array as $var)
{
if(isset($_POST[$var]))
{
$addloc[] = urlencode($var).'='.urlencode($_POST[$var]);
}
}

if(isset($addloc) && is_array($addloc))
{
if(strpos($location, "?") === false)
{
$location .= "?";
}
else
{
$location .= "&amp;";
}
$location .= implode("&amp;", $addloc);
}
}

if(strlen($location) > 150)
{
$location = substr($location, 0, 150);
}

return $location;
}
}

/**
* Build a theme selection menu
*
* @param string The name of the menu
* @param int The ID of the selected theme
* @param int The ID of the parent theme to select from
* @param int The current selection depth
* @param boolean Whether or not to override usergroup permissions (true to override)
* @return string The theme selection list
*/
function build_theme_select($name, $selected="", $tid=0, $depth="", $usergroup_override=false)
{
global $db, $themeselect, $tcache, $lang, $mybb, $limit;

if($tid == 0)
{
$themeselect = "<select name=\"$name\">";
$themeselect .= "<option value=\"0\">".$lang->use_default."</option>\n";
$themeselect .= "<option value=\"0\">-----------</option>\n";
$tid = 1;
}

if(!is_array($tcache))
{
$query = $db->simple_select("themes", "name, pid, tid, allowedgroups", "pid != '0'", array('order_by' => 'pid, name'));

while($theme = $db->fetch_array($query))
{
$tcache[$theme['pid']][$theme['tid']] = $theme;
}
}

if(is_array($tcache[$tid]))
{
// Figure out what groups this user is in
if($mybb->user['additionalgroups'])
{
$in_groups = explode(",", $mybb->user['additionalgroups']);
}
$in_groups[] = $mybb->user['usergroup'];

foreach($tcache[$tid] as $theme)
{
$sel = "";
// Make theme allowed groups into array
$is_allowed = false;
if($theme['allowedgroups'] != "all")
{
$allowed_groups = explode(",", $theme['allowedgroups']);
// See if groups user is in is allowed
foreach($allowed_groups as $agid)
{
if(in_array($agid, $in_groups))
{
$is_allowed = true;
break;
}
}
}

// Show theme if allowed, or if override is on
if($is_allowed || $theme['allowedgroups'] == "all" || $usergroup_override == true)
{
if($theme['tid'] == $selected)
{
$sel = " selected=\"selected\"";
}

if($theme['pid'] != 0)
{
$themeselect .= "<option value=\"".$theme['tid']."\"$sel>".$depth.$theme['name']."</option>";
$depthit = $depth."--";
}

if(array_key_exists($theme['tid'], $tcache))
{
build_theme_select($name, $selected, $theme['tid'], $depthit, $usergroup_override);
}
}
}
}

if($tid == 1)
{
$themeselect .= "</select>";
}

return $themeselect;
}

/**
* Custom function for htmlspecialchars which takes in to account unicode
*
* @param string The string to format
* @return string The string with htmlspecialchars applied
*/
function htmlspecialchars_uni($message)
{
$message = preg_replace("#&(?!\#[0-9]+Wink#si", "&amp;", $message); // Fix & but allow unicode
$message = str_replace("<", "&lt;", $message);
$message = str_replace(">", "&gt;", $message);
$message = str_replace("\"", "&quot;", $message);
return $message;
}

/**
* Custom function for formatting numbers.
*
* @param int The number to format.
* @return int The formatted number.
*/
function my_number_format($number)
{
global $mybb;

if($number == "-")
{
return $number;
}

if(is_int($number))
{
return number_format($number, 0, $mybb->settings['decpoint'], $mybb->settings['thousandssep']);
}
else
{
$parts = explode('.', $number);

if(isset($parts[1]))
{
$decimals = my_strlen($parts[1]);
}
else
{
$decimals = 0;
}

return number_format((double)$number, $decimals, $mybb->settings['decpoint'], $mybb->settings['thousandssep']);
}
}

function convert_through_utf8($str, $to=true)
{
global $lang;
static $charset;
static $use_mb;
static $use_iconv;

if(!isset($charset))
{
$charset = my_strtolower($lang->settings['charset']);
}

if($charset == "utf-8")
{
return $str;
}

if(!isset($use_iconv))
{
$use_iconv = function_exists("iconv");
}

if(!isset($use_mb))
{
$use_mb = function_exists("mb_convert_encoding");
}

if($use_iconv || $use_mb)
{
if($to)
{
$from_charset = $lang->settings['charset'];
$to_charset = "UTF-8";
}
else
{
$from_charset = "UTF-8";
$to_charset = $lang->settings['charset'];
}
if($use_iconv)
{
return iconv($from_charset, $to_charset."//IGNORE", $str);
}
else
{
return @mb_convert_encoding($str, $to_charset, $from_charset);
}
}
elseif($charset == "iso-8859-1" && function_exists("utf8_encode"))
{
if($to)
{
return utf8_encode($str);
}
else
{
return utf8_decode($str);
}
}
else
{
return $str;
}
}

/**
* Replacement function for PHP's wordwrap(). This version does not break up HTML tags, URLs or unicode references.
*
* @param string The string to be word wrapped
* @return string The word wraped string
*/
function my_wordwrap($message)
{
global $mybb;

if($mybb->settings['wordwrap'] > 0)
{
$message = convert_through_utf8($message);

if(!($new_message = @preg_replace("#(((?>[^\s&/<>\"\\-\[\]])|(&\#[a-z0-9]{1,10}Wink){{$mybb->settings['wordwrap']}})#u", "$0​", $message)))
{
$new_message = preg_replace("#(((?>[^\s&/<>\"\\-\[\]])|(&\#[a-z0-9]{1,10}Wink){{$mybb->settings['wordwrap']}})#", "$0​", $message);
}

$new_message = convert_through_utf8($new_message, false);

return $new_message;
}

return $message;
}

/**
* Workaround for date limitation in PHP to establish the day of a birthday (Provided by meme)
*
* @param int The month of the birthday
* @param int The day of the birthday
* @param int The year of the bithday
* @return int The numeric day of the week for the birthday
*/
function get_weekday($month, $day, $year)
{
$h = 4;

for($i = 1969; $i >= $year; $i--)
{
$j = get_bdays($i);

for($k = 11; $k >= 0; $k--)
{
$l = ($k + 1);

for($m = $j[$k]; $m >= 1; $m--)
{
$h--;

if($i == $year && $l == $month && $m == $day)
{
return $h;
}

if($h == 0)
{
$h = 7;
}
}
}
}
}

/**
* Workaround for date limitation in PHP to establish the day of a birthday (Provided by meme)
*
* @param int The year.
* @return array The number of days in each month of that year
*/
function get_bdays($in)
{
return array(
31,
($in % 4 == 0 && ($in % 100 > 0 || $in % 400 == 0) ? 29 : 28),
31,
30,
31,
30,
31,
31,
30,
31,
30,
31
);
}

/**
* Formats a birthday appropriately
*
* @param string The PHP date format string
* @param int The month of the birthday
* @param int The day of the birthday
* @param int The year of the birthday
* @param int The weekday of the birthday
* @return string The formatted birthday
*/
function format_bdays($display, $bm, $bd, $by, $wd)
{
global $lang;

$bdays = array(
$lang->sunday,
$lang->monday,
$lang->tuesday,
$lang->wednesday,
$lang->thursday,
$lang->friday,
$lang->saturday
);

$bmonth = array(
$lang->month_1,
$lang->month_2,
$lang->month_3,
$lang->month_4,
$lang->month_5,
$lang->month_6,
$lang->month_7,
$lang->month_8,
$lang->month_9,
$lang->month_10,
$lang->month_11,
$lang->month_12
);


// This needs to be in this specific order
$find = array(
'm',
'd',
'D',
'y',
'Y',
'j',
'S',
'F',
'l',
'M',
);

$html = array(
'm',
'c',
'D',
'y',
'Y',
'j',
'S',
'F',
'l',
'M',
);

$bdays = str_replace($find, $html, $bdays);
$bmonth = str_replace($find, $html, $bmonth);

$replace = array(
sprintf('%02s', $bm),
sprintf('%02s', $bd),
($wd == 2 ? my_substr($bdays[$wd], 0, 4) : ($wd == 4 ? my_substr($bdays[$wd], 0, 5) : my_substr($bdays[$wd], 0, 3))),
my_substr($by, 2),
$by,
($bd[0] == 0 ? my_substr($bd, 1) : $bd),
($bd == 1 || $bd == 21 || $bd == 31 ? 'st' : ($bd == 2 || $bd == 22 ? 'nd' : ($bd == 3 || $bd == 23 ? 'rd' : 'th'))),
$bmonth[$bm-1],
$wd,
($bm == 9 ? my_substr($bmonth[$bm-1], 0, 4) : my_substr($bmonth[$bm-1], 0, 3)),
);

// Do we have the full month in our output?
// If so there's no need for the short month
if(strpos($display, 'F') !== false)
{
array_pop($find);
array_pop($replace);
}

return str_replace($find, $replace, $display);
}

/**
* Returns the age of a user with specified birthday.
*
* @param string The birthday of a user.
* @return float The age of a user with that birthday.
*/
function get_age($birthday)
{
$bday = explode("-", $birthday);
if(!$bday[2])
{
return;
}

list($day, $month, $year) = explode("-", my_date("j-n-Y", TIME_NOW, 0, 0));

$age = $year-$bday[2];

if(($month == $bday[1] && $day < $bday[0]) || $month < $bday[1])
{
--$age;
}
return $age;
}

/**
* Updates the first posts in a thread.
*
* @param int The thread id for which to update the first post id.
*/
function update_first_post($tid)
{
global $db;

$query = $db->simple_select("posts", "pid,replyto", "tid='{$tid}'", array('order_by' => 'dateline', 'limit' => 1));
$post = $db->fetch_array($query);

if($post['replyto'] != 0)
{
$replyto_update = array(
"replyto" => 0
);
$db->update_query("posts", $replyto_update, "pid='{$post['pid']}'");
}

$firstpostup = array(
"firstpost" => $post['pid']
);
$db->update_query("threads", $firstpostup, "tid='$tid'");
}

/**
* Checks for the length of a string, mb strings accounted for
*
* @param string The string to check the length of.
* @return int The length of the string.
*/
function my_strlen($string)
{
global $lang;

$string = preg_replace("#&\#([0-9]+);#", "-", $string);

if(strtolower($lang->settings['charset']) == "utf-8")
{
// Get rid of any excess RTL and LTR override for they are the workings of the devil
$string = str_replace(dec_to_utf8(8238), "", $string);
$string = str_replace(dec_to_utf8(8237), "", $string);

// Remove dodgy whitespaces
$string = str_replace(chr(0xCA), "", $string);
}
$string = trim($string);

if(function_exists("mb_strlen"))
{
$string_length = mb_strlen($string);
}
else
{
$string_length = strlen($string);
}

return $string_length;
}

/**
* Cuts a string at a specified point, mb strings accounted for
*
* @param string The string to cut.
* @param int Where to cut
* @param int (optional) How much to cut
* @param bool (optional) Properly handle HTML entities?
* @return int The cut part of the string.
*/
function my_substr($string, $start, $length="", $handle_entities = false)
{
if($handle_entities)
{
$string = unhtmlentities($string);
}
if(function_exists("mb_substr"))
{
if($length != "")
{
$cut_string = mb_substr($string, $start, $length);
}
else
{
$cut_string = mb_substr($string, $start);
}
}
else
{
if($length != "")
{
$cut_string = substr($string, $start, $length);
}
else
{
$cut_string = substr($string, $start);
}
}

if($handle_entities)
{
$cut_string = htmlspecialchars_uni($cut_string);
}
return $cut_string;
}

/**
* lowers the case of a string, mb strings accounted for
*
* @param string The string to lower.
* @return int The lowered string.
*/
function my_strtolower($string)
{
if(function_exists("mb_strtolower"))
{
$string = mb_strtolower($string);
}
else
{
$string = strtolower($string);
}

return $string;
}

/**
* Finds a needle in a haystack and returns it position, mb strings accounted for
*
* @param string String to look in (haystack)
* @param string What to look for (needle)
* @param int (optional) How much to offset
* @return int false on needle not found, integer position if found
*/
function my_strpos($haystack, $needle, $offset=0)
{
if($needle == '')
{
return false;
}

if(function_exists("mb_strpos"))
{
$position = mb_strpos($haystack, $needle, $offset);
}
else
{
$position = strpos($haystack, $needle, $offset);
}

return $position;
}

/**
* ups the case of a string, mb strings accounted for
*
* @param string The string to up.
* @return int The uped string.
*/
function my_strtoupper($string)
{
if(function_exists("mb_strtoupper"))
{
$string = mb_strtoupper($string);
}
else
{
$string = strtoupper($string);
}

return $string;
}

/**
* Returns any html entities to their original character
*
* @param string The string to un-htmlentitize.
* @return int The un-htmlentitied' string.
*/
function unhtmlentities($string)
{
// Replace numeric entities
$string = preg_replace('~&#x([0-9a-f]+);~ei', 'unichr(hexdec("\\1"))', $string);
$string = preg_replace('~&#([0-9]+);~e', 'unichr("\\1")', $string);

// Replace literal entities
$trans_tbl = get_html_translation_table(HTML_ENTITIES);
$trans_tbl = array_flip($trans_tbl);

return strtr($string, $trans_tbl);
}

/**
* Returns any ascii to it's character (utf-8 safe).
*
* @param string The ascii to characterize.
* @return int The characterized ascii.
*/
function unichr($c)
{
if($c <= 0x7F)
{
return chr($c);
}
else if($c <= 0x7FF)
{
return chr(0xC0 | $c >> 6) . chr(0x80 | $c & 0x3F);
}
else if($c <= 0xFFFF)
{
return chr(0xE0 | $c >> 12) . chr(0x80 | $c >> 6 & 0x3F)
. chr(0x80 | $c & 0x3F);
}
else if($c <= 0x10FFFF)
{
return chr(0xF0 | $c >> 18) . chr(0x80 | $c >> 12 & 0x3F)
. chr(0x80 | $c >> 6 & 0x3F)
. chr(0x80 | $c & 0x3F);
}
else
{
return false;
}
}

/**
* Get the event poster.
*
* @param array The event data array.
* @return string The link to the event poster.
*/
function get_event_poster($event)
{
$event['username'] = format_name($event['username'], $event['usergroup'], $event['displaygroup']);
$event_poster = build_profile_link($event['username'], $event['author']);
return $event_poster;
}

/**
* Get the event date.
*
* @param array The event data array.
* @return string The event date.
*/
function get_event_date($event)
{
global $mybb;

$event_date = explode("-", $event['date']);
$event_date = mktime(0, 0, 0, $event_date[1], $event_date[0], $event_date[2]);
$event_date = my_date($mybb->settings['dateformat'], $event_date);

return $event_date;
}

/**
* Get the profile link.
*
* @param int The user id of the profile.
* @return string The url to the profile.
*/
function get_profile_link($uid=0)
{
$link = str_replace("{uid}", $uid, PROFILE_URL);
return htmlspecialchars_uni($link);
}

/**
* Get the announcement link.
*
* @param int The announement id of the announcement.
* @return string The url to the announcement.
*/
function get_announcement_link($aid=0)
{
$link = str_replace("{aid}", $aid, ANNOUNCEMENT_URL);
return htmlspecialchars_uni($link);
}

/**
* Build the profile link.
*
* @param string The Username of the profile.
* @param int The user id of the profile.
* @param string The target frame
* @param string Any onclick javascript.
* @return string The complete profile link.
*/
function build_profile_link($username="", $uid=0, $target="", $onclick="")
{
global $mybb, $lang;

if(!$username && $uid == 0)
{
// Return Guest phrase for no UID, no guest nickname
return $lang->guest;
}
elseif($uid == 0)
{
// Return the guest's nickname if user is a guest but has a nickname
return $username;
}
else
{
// Build the profile link for the registered user
if(!empty($target))
{
$target = " target=\"{$target}\"";
}

if(!empty($onclick))
{
$onclick = " onclick=\"{$onclick}\"";
}

return "<a href=\"{$mybb->settings['bburl']}/".get_profile_link($uid)."\"{$target}{$onclick}>{$username}</a>";
}
}

/**
* Build the forum link.
*
* @param int The forum id of the forum.
* @param int (Optional) The page number of the forum.
* @return string The url to the forum.
*/
function get_forum_link($fid, $page=0)
{
if($page > 0)
{
$link = str_replace("{fid}", $fid, FORUM_URL_PAGED);
$link = str_replace("{page}", $page, $link);
return htmlspecialchars_uni($link);
}
else
{
$link = str_replace("{fid}", $fid, FORUM_URL);
return htmlspecialchars_uni($link);
}
}

/**
* Build the thread link.
*
* @param int The thread id of the thread.
* @param int (Optional) The page number of the thread.
* @param string (Optional) The action we're performing (ex, lastpost, newpost, etc)
* @return string The url to the thread.
*/
function get_thread_link($tid, $page=0, $action='')
{
if($page > 1)
{
if($action)
{
$link = THREAD_URL_ACTION;
$link = str_replace("{action}", $action, $link);
}
else
{
$link = THREAD_URL_PAGED;
}
$link = str_replace("{tid}", $tid, $link);
$link = str_replace("{page}", $page, $link);
return htmlspecialchars_uni($link);
}
else
{
if($action)
{
$link = THREAD_URL_ACTION;
$link = str_replace("{action}", $action, $link);
}
else
{
$link = THREAD_URL;
}
$link = str_replace("{tid}", $tid, $link);
return htmlspecialchars_uni($link);
}
}

/**
* Build the post link.
*
* @param int The post ID of the post
* @param int The thread id of the post.
*/
function get_post_link($pid, $tid=0)
{
if($tid > 0)
{
$link = str_replace("{tid}", $tid, THREAD_URL_POST);
$link = str_replace("{pid}", $pid, $link);
return htmlspecialchars_uni($link);
}
else
{
$link = str_replace("{pid}", $pid, POST_URL);
return htmlspecialchars_uni($link);
}
}

/**
* Build the event link.
*
* @param int The event ID of the event
* @return string The URL of the event
*/
function get_event_link($eid)
{
$link = str_replace("{eid}", $eid, EVENT_URL);
return htmlspecialchars_uni($link);
}

/**
* Build the link to a specified date on the calendar
*
* @param int The ID of the calendar
* @param int The year
* @param int The month
* @param int The day (optional)
* @return string The URL of the calendar
*/
function get_calendar_link($calendar, $year=0, $month=0, $day=0)
{
if($day > 0)
{
$link = str_replace("{month}", $month, CALENDAR_URL_DAY);
$link = str_replace("{year}", $year, $link);
$link = str_replace("{day}", $day, $link);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}
else if($month > 0)
{
$link = str_replace("{month}", $month, CALENDAR_URL_MONTH);
$link = str_replace("{year}", $year, $link);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}
else if($year > 0)
{
$link = str_replace("{year}", $year, CALENDAR_URL_YEAR);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}
else
{
$link = str_replace("{calendar}", $calendar, CALENDAR_URL);
return htmlspecialchars_uni($link);
}
}

/**
* Build the link to a specified week on the calendar
*
* @param int The ID of the calendar
* @param int The year
* @param int The week
* @return string The URL of the calendar
*/
function get_calendar_week_link($calendar, $week)
{
if($week < 0)
{
$week = str_replace('-', "n", $week);
}
$link = str_replace("{week}", $week, CALENDAR_URL_WEEK);
$link = str_replace("{calendar}", $calendar, $link);
return htmlspecialchars_uni($link);
}

/**
* Get the user data of a user id.
*
* @param int The user id of the user.
* @return array The users data
*/
function get_user($uid)
{
global $mybb, $db;
static $user_cache;

$uid = intval($uid);

if($uid == $mybb->user['uid'])
{
return $mybb->user;
}
elseif(isset($user_cache[$uid]))
{
return $user_cache[$uid];
}
else
{
$query = $db->simple_select("users", "*", "uid='{$uid}'");
$user_cache[$uid] = $db->fetch_array($query);

return $user_cache[$uid];
}
}

/**
* Get the forum of a specific forum id.
*
* @param int The forum id of the forum.
* @param int (Optional) If set to 1, will override the active forum status
* @return array The database row of a forum.
*/
function get_forum($fid, $active_override=0)
{
global $cache;
static $forum_cache;

if(!isset($forum_cache) || is_array($forum_cache))
{
$forum_cache = $cache->read("forums");
}

if(!$forum_cache[$fid])
{
return false;
}

if($active_override != 1)
{
$parents = explode(",", $forum_cache[$fid]['parentlist']);
if(is_array($parents))
{
foreach($parents as $parent)
{
if($forum_cache[$parent]['active'] == 0)
{
return false;
}
}
}
}

return $forum_cache[$fid];
}

/**
* Get the thread of a thread id.
*
* @param int The thread id of the thread.
* @param boolean Whether or not to recache the thread.
* @return string The database row of the thread.
*/
function get_thread($tid, $recache = false)
{
global $db;
static $thread_cache;

if(isset($thread_cache[$tid]) && !$recache)
{
return $thread_cache[$tid];
}
else
{
$query = $db->simple_select("threads", "*", "tid='".intval($tid)."'");
$thread = $db->fetch_array($query);

if($thread)
{
$thread_cache[$tid] = $thread;
return $thread;
}
else
{
$thread_cache[$tid] = false;
return false;
}
}
}

/**
* Get the post of a post id.
*
* @param int The post id of the post.
* @return string The database row of the post.
*/
function get_post($pid)
{
global $db;
static $post_cache;

if(isset($post_cache[$pid]))
{
return $post_cache[$pid];
}
else
{
$query = $db->simple_select("posts", "*", "pid='".intval($pid)."'");
$post = $db->fetch_array($query);

if($post)
{
$post_cache[$pid] = $post;
return $post;
}
else
{
$post_cache[$pid] = false;
return false;
}
}
}

/**
* Get inactivate forums.
*
* @return string The comma separated values of the inactivate forum.
*/
function get_inactive_forums()
{
global $forum_cache, $cache, $inactiveforums;

if(!$forum_cache)
{
cache_forums();
}

$inactive = array();

foreach($forum_cache as $fid => $forum)
{
if($forum['active'] == 0)
{
$inactive[] = $fid;
foreach($forum_cache as $fid1 => $forum1)
{
if(my_strpos(",".$forum1['parentlist'].",", ",".$fid.",") !== false && !in_array($fid1, $inactive))
{
$inactive[] = $fid1;
}
}
}
}
$inactiveforums = implode(",", $inactive);

return $inactiveforums;
}

/**
* Checks to make sure a user has not tried to login more times than permitted
* Will stop execution with call to error() unless
*
* @param bool (Optional) The function will stop execution if it finds an error with the login. Default is True
* @return bool Number of logins when success, false if failed.
*/
function login_attempt_check($fatal = true)
{
global $mybb, $lang, $session, $db;

if($mybb->settings['failedlogincount'] == 0)
{
return 1;
}
// Note: Number of logins is defaulted to 1, because using 0 seems to clear cookie data. Not really a problem as long as we account for 1 being default.

// Use cookie if possible, otherwise use session
// Session stops user clearing cookies to bypass the login
// Also use the greater of the two numbers present, stops people using scripts with altered cookie data to stay the same
$cookielogins = intval($mybb->cookies['loginattempts']);
$cookietime = $mybb->cookies['failedlogin'];

if(empty($cookielogins) || $cookielogins < $session->logins)
{
$loginattempts = $session->logins;
}
else
{
$loginattempts = $cookielogins;
}

if(empty($cookietime) || $cookietime < $session->failedlogin)
{
$failedlogin = $session->failedlogin;
}
else
{
$failedlogin = $cookietime;
}

// Work out if the user has had more than the allowed number of login attempts
if($loginattempts > $mybb->settings['failedlogincount'])
{
// If so, then we need to work out if they can try to login again
// Some maths to work out how long they have left and display it to them
$now = TIME_NOW;

if(empty($mybb->cookies['failedlogin']))
{
$failedtime = $now;
}
else
{
$failedtime = $mybb->cookies['failedlogin'];
}

$secondsleft = $mybb->settings['failedlogintime'] * 60 + $failedtime - $now;
$hoursleft = floor($secondsleft / 3600);
$minsleft = floor(($secondsleft / 60) % 60);
$secsleft = floor($secondsleft % 60);

// This value will be empty the first time the user doesn't login in, set it
if(empty($failedlogin))
{
my_setcookie('failedlogin', $now);
if($fatal)
{
error($lang->sprintf($lang->failed_login_wait, $hoursleft, $minsleft, $secsleft));
}

return false;
}

// Work out if the user has waited long enough before letting them login again
if($mybb->cookies['failedlogin'] < ($now - $mybb->settings['failedlogintime'] * 60))
{
my_setcookie('loginattempts', 1);
my_unsetcookie('failedlogin');
if($mybb->user['uid'] != 0)
{
$update_array = array(
'loginattempts' => 1
);
$db->update_query("users", $update_array, "uid = '{$mybb->user['uid']}'");
}
return 1;
}
// Not waited long enough
else if($mybb->cookies['failedlogin'] > ($now - $mybb->settings['failedlogintime'] * 60))
{
if($fatal)
{
error($lang->sprintf($lang->failed_login_wait, $hoursleft, $minsleft, $secsleft));
}

return false;
}
}

// User can attempt another login
return $loginattempts;
}

/**
* Validates the format of an email address.
*
* @param string The string to check.
* @return boolean True when valid, false when invalid.
*/
function validate_email_format($email)
{
if(strpos($email, ' ') !== false)
{
return false;
}
// Valid local characters for email addresses: http://www.remote.org/jochen/mail/info/chars.html
return preg_match("/^[a-zA-Z0-9&*+\-_.{}~^\?=\/][email protected][a-zA-Z0-9-]+\.([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]{2,}$/si", $email);
}

/**
* Checks to see if the email is already in use by another
*
* @param string The email to check.
* @param string User ID of the user (updating only)
* @return boolean True when in use, false when not.
*/
function email_already_in_use($email, $uid="")
{
global $db;

$uid_string = "";
if($uid)
{
$uid_string = " AND uid != '".intval($uid)."'";
}
$query = $db->simple_select("users", "COUNT(email) as emails", "email = '".$db->escape_string($email)."'{$uid_string}");

if($db->fetch_field($query, "emails") > 0)
{
return true;
}

return false;
}

/*
* DEPRECATED! ONLY INCLUDED FOR COMPATIBILITY PURPOSES.
*/
function rebuildsettings()
{
rebuild_settings();
}

/**
* Rebuilds settings.php
*
*/
function rebuild_settings()
{
global $db, $mybb;

if(!file_exists(MYBB_ROOT."inc/settings.php"))
{
$mode = "x";
}
else
{
$mode = "w";
}

$options = array(
"order_by" => "title",
"order_dir" => "ASC"
);
$query = $db->simple_select("settings", "value, name", "", $options);

while($setting = $db->fetch_array($query))
{
$mybb->settings[$setting['name']] = $setting['value'];
$setting['value'] = addcslashes($setting['value'], '\\"$');
$settings .= "\$settings['{$setting['name']}'] = \"{$setting['value']}\";\n";
}

$settings = "<"."?php\n/*********************************\ \n DO NOT EDIT THIS FILE, PLEASE USE\n THE SETTINGS EDITOR\n\*********************************/\n\n$settings\n?".">";
$file = @fopen(MYBB_ROOT."inc/settings.php", $mode);
@fwrite($file, $settings);
@fclose($file);

$GLOBALS['settings'] = &$mybb->settings;
}

/**
* Build a PREG compatible array of search highlight terms to replace in posts.
*
* @param string Incoming terms to highlight
* @return array PREG compatible array of terms
*/
function build_highlight_array($terms)
{
global $mybb;

if($mybb->settings['minsearchword'] < 1)
{
$mybb->settings['minsearchword'] = 3;
}

if(is_array($terms))
{
$terms = implode(' ', $terms);
}

// Strip out any characters that shouldn't be included
$bad_characters = array(
"(",
")",
"+",
"-",
"~"
);
$terms = str_replace($bad_characters, '', $terms);

// Check if this is a "series of words" - should be treated as an EXACT match
if(my_strpos($terms, "\"") !== false)
{
$inquote = false;
$terms = explode("\"", $terms);
foreach($terms as $phrase)
{
$phrase = htmlspecialchars_uni($phrase);
if($phrase != "")
{
if($inquote)
{
$words[] = trim($phrase);
}
else
{
$split_words = preg_split("#\s{1,}#", $phrase, -1);
if(!is_array($split_words))
{
continue;
}
foreach($split_words as $word)
{
if(!$word || strlen($word) < $mybb->settings['minsearchword'])
{
continue;
}
$words[] = trim($word);
}
}
}
$inquote = !$inquote;
}
}
// Otherwise just a simple search query with no phrases
else
{
$terms = htmlspecialchars_uni($terms);
$split_words = preg_split("#\s{1,}#", $terms, -1);
if(is_array($split_words))
{
foreach($split_words as $word)
{
if(!$word || strlen($word) < $mybb->settings['minsearchword'])
{
continue;
}
$words[] = trim($word);
}
}
}

if(!is_array($words))
{
return false;
}

// Sort the word array by length. Largest terms go first and work their way down to the smallest term.
// This resolves problems like "test tes" where "tes" will be highlighted first, then "test" can't be highlighted because of the changed html
usort($words, create_function('$a,$b', 'return strlen($b) - strlen($a);'));

// Loop through our words to build the PREG compatible strings
foreach($words as $word)
{
$word = trim($word);

$word = my_strtolower($word);

// Special boolean operators should be stripped
if($word == "" || $word == "or" || $word == "not" || $word == "and")
{
continue;
}

// Now make PREG compatible
$find = "#(?!<.*?)(".preg_quote($word, "#").")(?![^<>]*?>)#i";
$replacement = "<span class=\"highlight\" style=\"padding-left: 0px; padding-right: 0px;\">$1</span>";
$highlight_cache[$find] = $replacement;
}

return $highlight_cache;
}

/**
* Converts a decimal reference of a character to its UTF-8 equivalent
* (Code by Anne van Kesteren, http://annevankesteren.nl/2005/05/character-references)
*
* @param string Decimal value of a character reference
*/
function dec_to_utf8($src)
{
$dest = '';

if($src < 0)
{
return false;
}
elseif($src <= 0x007f)
{
$dest .= chr($src);
}
elseif($src <= 0x07ff)
{
$dest .= chr(0xc0 | ($src >> 6));
$dest .= chr(0x80 | ($src & 0x003f));
}
elseif($src <= 0xffff)
{
$dest .= chr(0xe0 | ($src >> 12));
$dest .= chr(0x80 | (($src >> 6) & 0x003f));
$dest .= chr(0x80 | ($src & 0x003f));
}
elseif($src <= 0x10ffff)
{
$dest .= chr(0xf0 | ($src >> 18));
$dest .= chr(0x80 | (($src >> 12) & 0x3f));
$dest .= chr(0x80 | (($src >> 6) & 0x3f));
$dest .= chr(0x80 | ($src & 0x3f));
}
else
{
// Out of range
return false;
}

return $dest;
}

/**
* Checks if a username has been disallowed for registration/use.
*
* @param string The username
* @param boolean True if the 'last used' dateline should be updated if a match is found.
* @return boolean True if banned, false if not banned
*/
function is_banned_username($username, $update_lastuse=false)
{
global $db;
$query = $db->simple_select('banfilters', 'filter, fid', "type='2'");
while($banned_username = $db->fetch_array($query))
{
// Make regular expression * match
$banned_username['filter'] = str_replace('\*', '(.*)', preg_quote($banned_username['filter'], '#'));
if(preg_match("#(^|\b){$banned_username['filter']}($|\b)#i", $username))
{
// Updating last use
if($update_lastuse == true)
{
$db->update_query("banfilters", array("lastuse" => TIME_NOW), "fid='{$banned_username['fid']}'");
}
return true;
}
}
// Still here - good username
return false;
}

/**
* Check if a specific email address has been banned.
*
* @param string The email address.
* @param boolean True if the 'last used' dateline should be updated if a match is found.
* @return boolean True if banned, false if not banned
*/
function is_banned_email($email, $update_lastuse=false)
{
global $cache, $db;

$banned_cache = $cache->read("bannedemails");

if(!$banned_cache)
{
$cache->update_bannedemails();
$banned_cache = $cache->read("bannedemails");
}

foreach($banned_cache as $banned_email)
{
// Make regular expression * match
$banned_email['filter'] = str_replace('\*', '(.*)', preg_quote($banned_email['filter'], '#'));

if(preg_match("#{$banned_email['filter']}#i", $email))
{
// Updating last use
if($update_lastuse == true)
{
$db->update_query("banfilters", array("lastuse" => TIME_NOW), "fid='{$banned_email['fid']}'");
}
return true;
}
}
// Still here - good email
return false;
}

/**
* Checks if a specific IP address has been banned.
*
* @param string The IP address.
* @param boolean True if the 'last used' dateline should be updated if a match is found.
* @return boolean True if banned, false if not banned.
*/
function is_banned_ip($ip_address, $update_lastuse=false)
{
global $db, $cache;

$banned_ips = $cache->read("bannedips");
if(!is_array($banned_ips))
{
return false;
}

foreach($banned_ips as $banned_ip)
{
if(!$banned_ip['filter'])
{
continue;
}

// Make regular expression * match
$banned_ip['filter'] = str_replace('\*', '(.*)', preg_quote($banned_ip['filter'], '#'));
if(preg_match("#{$banned_ip['filter']}#i", $ip_address))
{
// Updating last use
if($update_lastuse == true)
{
$db->update_query("banfilters", array("lastuse" => TIME_NOW), "fid='{$banned_ip['fid']}'");
}
return true;
}
}
// Still here - good ip
return false;
}

/**
* Build a time zone selection list.
*
* @param string The name of the select
* @param int The selected time zone (defaults to GMT)
* @param boolean True to generate a "short" list with just timezone and current time
*/
function build_timezone_select($name, $selected=0, $short=false)
{
global $mybb, $lang;

$timezones = array(
"-12" => $lang->timezone_gmt_minus_1200,
"-11" => $lang->timezone_gmt_minus_1100,
"-10" => $lang->timezone_gmt_minus_1000,
"-9" => $lang->timezone_gmt_minus_900,
"-8" => $lang->timezone_gmt_minus_800,
"-7" => $lang->timezone_gmt_minus_700,
"-6" => $lang->timezone_gmt_minus_600,
"-5" => $lang->timezone_gmt_minus_500,
"-4.5" => $lang->timezone_gmt_minus_450,
"-4" => $lang->timezone_gmt_minus_400,
"-3.5" => $lang->timezone_gmt_minus_350,
"-3" => $lang->timezone_gmt_minus_300,
"-2" => $lang->timezone_gmt_minus_200,
"-1" => $lang->timezone_gmt_minus_100,
"0" => $lang->timezone_gmt,
"1" => $lang->timezone_gmt_100,
"2" => $lang->timezone_gmt_200,
"3" => $lang->timezone_gmt_300,
"3.5" => $lang->timezone_gmt_350,
"4" => $lang->timezone_gmt_400,
"4.5" => $lang->timezone_gmt_450,
"5" => $lang->timezone_gmt_500,
"5.5" => $lang->timezone_gmt_550,
"6" => $lang->timezone_gmt_600,
"7" => $lang->timezone_gmt_700,
"8" => $lang->timezone_gmt_800,
"9" => $lang->timezone_gmt_900,
"9.5" => $lang->timezone_gmt_950,
"10" => $lang->timezone_gmt_1000,
"11" => $lang->timezone_gmt_1100,
"12" => $lang->timezone_gmt_1200
);

$selected = str_replace("+", "", $selected);
$select = "<select name=\"{$name}\" id=\"{$name}\">\n";
foreach($timezones as $timezone => $label)
{
$selected_add = "";
if($selected == $timezone)
{
$selected_add = " selected=\"selected\"";
}
if($short == true)
{
$label = '';
if($timezone != 0)
{
$label = $timezone;
if($timezone > 0)
{
$label = "+{$label}";
}
if(strpos($timezone, ".") !== false)
{
$label = str_replace(".", ":", $label);
$label = str_replace(":5", ":30", $label);
}
else
{
$label .= ":00";
}
}
$time_in_zone = my_date($mybb->settings['timeformat'], TIME_NOW, $timezone);
$label = $lang->sprintf($lang->timezone_gmt_short, $label." ", $time_in_zone);
}
$select .= "<option value=\"{$timezone}\"{$selected_add}>{$label}</option>\n";
}
$select .= "</select>";
return $select;
}

/**
* Fetch the contents of a remote fle.
*
* @param string The URL of the remote file
* @return string The remote file contents.
*/
function fetch_remote_file($url, $post_data=array())
{
$post_body = '';
if(!empty($post_data))
{
foreach($post_data as $key => $val)
{
$post_body .= '&'.urlencode($key).'='.urlencode($val);
}
$post_body = ltrim($post_body, '&');
}

if(function_exists("curl_init"))
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
if(!empty($post_body))
{
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_body);
}
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
else if(function_exists("fsockopen"))
{
$url = @parse_url($url);
if(!$url['host'])
{
return false;
}
if(!$url['port'])
{
$url['port'] = 80;
}
if(!$url['path'])
{
$url['path'] = "/";
}
if($url['query'])
{
$url['path'] .= "?{$url['query']}";
}
$fp = @fsockopen($url['host'], $url['port'], $error_no, $error, 10);
@stream_set_timeout($fp, 10);
if(!$fp)
{
return false;
}
$headers = array();
if(!empty($post_body))
{
$headers[] = "POST {$url['path']} HTTP/1.0";
$headers[] = "Content-Length: ".strlen($post_body);
$headers[] = "Content-Type: application/x-www-form-urlencoded";
}
else
{
$headers[] = "GET {$url['path']} HTTP/1.0";
}

$headers[] = "Host: {$url['host']}";
$headers[] = "Connection: Close";
$headers[] = '';

if(!empty($post_body))
{
$headers[] = $post_body;
}
else
{
// If we have no post body, we need to add an empty element to make sure we've got \r\n\r\n before the (non-existent) body starts
$headers[] = '';
}

$headers = implode("\r\n", $headers);
if([email protected]($fp, $headers))
{
return false;
}
while(!feof($fp))
{
$data .= fgets($fp, 12800);
}
fclose($fp);
$data = explode("\r\n\r\n", $data, 2);
return $data[1];
}
else if(empty($post_data))
{
return @implode("", @file($url));
}
else
{
return false;
}
}

/**
* Checks if a particular user is a super administrator.
*
* @param int The user ID to check against the list of super admins
* @return boolean True if a super admin, false if not
*/
function is_super_admin($uid)
{
global $mybb;

$mybb->config['super_admins'] = str_replace(" ", "", $mybb->config['super_admins']);
if(my_strpos(",{$mybb->config['super_admins']},", ",{$uid},") === false)
{
return false;
}
else
{
return true;
}
}

/**
* Split a string based on the specified delimeter, ignoring said delimeter in escaped strings.
* Ex: the "quick brown fox" jumped, could return 1 => the, 2 => quick brown fox, 3 => jumped
*
* @param string The delimeter to split by
* @param string The string to split
* @param string The escape character or string if we have one.
* @return array Array of split string
*/
function escaped_explode($delimeter, $string, $escape="")
{
$strings = array();
$original = $string;
$in_escape = false;
if($escape)
{
if(is_array($escape))
{
function escaped_explode_escape($string)
{
return preg_quote($string, "#");
}
$escape_preg = "(".implode("|", array_map("escaped_explode_escape", $escape)).")";
}
else
{
$escape_preg = preg_quote($escape, "#");
}
$quoted_strings = preg_split("#(?<!\\\){$escape_preg}#", $string);
}
else
{
$quoted_strings = array($string);
}
foreach($quoted_strings as $string)
{
if($string != "")
{
if($in_escape)
{
$strings[] = trim($string);
}
else
{
$split_strings = explode($delimeter, $string);
foreach($split_strings as $string)
{
if($string == "") continue;
$strings[] = trim($string);
}
}
}
$in_escape = !$in_escape;
}
if(!count($strings))
{
return $original;
}
return $strings;
}

/**
* Fetch an IPv4 long formatted range for searching IPv4 IP addresses.
*
* @param string The IP address to convert to a range based LONG
* @rturn mixed If a full IP address is provided, the ip2long equivalent, otherwise an array of the upper & lower extremities of the IP
*/
function fetch_longipv4_range($ip)
{
$ip_bits = explode(".", $ip);
$ip_string1 = $ip_string2 = "";

if($ip == "*")
{
return array(ip2long('0.0.0.0'), ip2long('255.255.255.255'));
}

if(strpos($ip, ".*") === false)
{
$ip = str_replace("*", "", $ip);
if(count($ip_bits) == 4)
{
return ip2long($ip);
}
else
{
return array(ip2long($ip.".0"), ip2long($ip.".255"));
}
}
// Wildcard based IP provided
else
{
$sep = "";
foreach($ip_bits as $piece)
{
if($piece == "*")
{
$ip_string1 .= $sep."0";
$ip_string2 .= $sep."255";
}
else
{
$ip_string1 .= $sep.$piece;
$ip_string2 .= $sep.$piece;
}
$sep = ".";
}
return array(ip2long($ip_string1), ip2long($ip_string2));
}
}

/**
* Fetch a list of ban times for a user account.
*
* @return array Array of ban times
*/
function fetch_ban_times()
{
global $plugins, $lang;

// Days-Months-Years
$ban_times = array(
"1-0-0" => "1 {$lang->day}",
"2-0-0" => "2 {$lang->days}",
"3-0-0" => "3 {$lang->days}",
"4-0-0" => "4 {$lang->days}",
"5-0-0" => "5 {$lang->days}",
"6-0-0" => "6 {$lang->days}",
"7-0-0" => "1 {$lang->week}",
"14-0-0" => "2 {$lang->weeks}",
"21-0-0" => "3 {$lang->weeks}",
"0-1-0" => "1 {$lang->month}",
"0-2-0" => "2 {$lang->months}",
"0-3-0" => "3 {$lang->months}",
"0-4-0" => "4 {$lang->months}",
"0-5-0" => "5 {$lang->months}",
"0-6-0" => "6 {$lang->months}",
"0-0-1" => "1 {$lang->year}",
"0-0-2" => "2 {$lang->years}"
);

$ban_times = $plugins->run_hooks("functions_fetch_ban_times", $ban_times);

$ban_times['---'] = $lang->permanent;
return $ban_times;
}

/**
* Format a ban length in to a UNIX timestamp.
*
* @param string The ban length string
* @param int The optional UNIX timestamp, if 0, current time is used.
* @return int The UNIX timestamp when the ban will be lifted
*/
function ban_date2timestamp($date, $stamp=0)
{
if($stamp == 0)
{
$stamp = TIME_NOW;
}
$d = explode('-', $date);
$nowdate = date("H-j-n-Y", $stamp);
$n = explode('-', $nowdate);
$n[1] += $d[0];
$n[2] += $d[1];
$n[3] += $d[2];
return mktime(date("G"), date("i"), 0, $n[2], $n[1], $n[3]);
}

/**
* Expire old warnings in the database.
*
*/
function expire_warnings()
{
global $db;

$users = array();

$query = $db->query("
SELECT w.wid, w.uid, w.points, u.warningpoints
FROM ".TABLE_PREFIX."warnings w
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=w.uid)
WHERE expires<".TIME_NOW." AND expires!=0 AND expired!=1
");
while($warning = $db->fetch_array($query))
{
$updated_warning = array(
"expired" => 1
);
$db->update_query("warnings", $updated_warning, "wid='{$warning['wid']}'");

if(array_key_exists($warning['uid'], $users))
{
$users[$warning['uid']] -= $warning['points'];
}
else
{
$users[$warning['uid']] = $warning['warningpoints']-$warning['points'];
}
}

foreach($users as $uid => $warningpoints)
{
if($warningpoints < 0)
{
$warningpoints = 0;
}

$updated_user = array(
"warningpoints" => intval($warningpoints)
);
$db->update_query("users", $updated_user, "uid='".intval($uid)."'");
}
}

/**
* Custom chmod function to fix problems with hosts who's server configurations screw up umasks
*
* @param string The file to chmod
* @param string The mode to chmod(i.e. 0666)
*/
function my_chmod($file, $mode)
{
// Passing $mode as an octal number causes strlen and substr to return incorrect values. Instead pass as a string
if(substr($mode, 0, 1) != '0' || strlen($mode) !== 4)
{
return false;
}
$old_umask = umask(0);

// We convert the octal string to a decimal number because passing a octal string doesn't work with chmod
// and type casting subsequently removes the prepended 0 which is needed for octal numbers
$result = chmod($file, octdec($mode));
umask($old_umask);
return $result;
}

/**
* Custom rmdir function to loop through an entire directory and delete all files/folders within
*
* @param string The path to the directory
* @param array Any files you wish to ignore (optional)
*/
function my_rmdir_recursive($path, $ignore=array())
{
global $orig_dir;

if(!isset($orig_dir))
{
$orig_dir = $path;
}

if(@is_dir($path) && [email protected]_link($path))
{
if($dh = @opendir($path))
{
while(($file = @readdir($dh)) !== false)
{
if($file == '.' || $file == '..' || $file == '.svn' || in_array($path.'/'.$file, $ignore) || !my_rmdir_recursive($path.'/'.$file))
{
continue;
}
}
@closedir($dh);
}

// Are we done? Don't delete the main folder too and return true
if($path == $orig_dir)
{
return true;
}

return @rmdir($path);
}

return @unlink($path);
}

/**
* Counts the number of subforums in a array([pid][disporder][fid]) starting from the pid
*
* @param array The array of forums
* @return integer The number of sub forums
*/
function subforums_count($array)
{
$count = 0;
foreach($array as $array2)
{
$count += count($array2);
}

return $count;
}

/**
* Fix for PHP's ip2long to guarantee a 32-bit signed integer value is produced (this is aimed
* at 64-bit versions of PHP)
*
* @param string The IP to convert
* @return integer IP in 32-bit signed format
*/
function my_ip2long($ip)
{
$ip_long = ip2long($ip);

if(!$ip_long)
{
$ip_long = sprintf("%u", ip2long($ip));

if(!$ip_long)
{
return 0;
}
}

if($ip_long >= 2147483648) // Won't occur on 32-bit PHP
{
$ip_long -= 4294967296;
}

return $ip_long;
}

/**
* As above, fix for PHP's long2ip on 64-bit versions
*
* @param integer The IP to convert (will accept 64-bit IPs as well)
* @return string IP in IPv4 format
*/
function my_long2ip($long)
{
// On 64-bit machines is_int will return true. On 32-bit it will return false
if($long < 0 && is_int(2147483648))
{
// We have a 64-bit system
$long += 4294967296;
}
return long2ip($long);
}


/**
* Processes a checksum list on MyBB files and returns a result set
*
* @param array The array of checksums and their corresponding files
* @return array The bad files
*/
function verify_files($path=MYBB_ROOT, $count=0)
{
global $mybb, $checksums, $bad_verify_files;

// We don't need to check these types of files
$ignore = array(".", "..", ".svn", "config.php", "settings.php", "Thumb.db", "config.default.php", "lock", "htaccess.txt", "logo.gif");
$ignore_ext = array("attach");

if(substr($path, -1, 1) == "/")
{
$path = substr($path, 0, -1);
}

if(!is_array($bad_verify_files))
{
$bad_verify_files = array();
}

// Make sure that we're in a directory and it's not a symbolic link
if(@is_dir($path) && [email protected]_link($path))
{
if($dh = @opendir($path))
{
// Loop through all the files/directories in this directory
while(($file = @readdir($dh)) !== false)
{
if(in_array($file, $ignore) || in_array(get_extension($file), $ignore_ext))
{
continue;
}

// Recurse through the directory tree
if(is_dir($path."/".$file))
{
verify_files($path."/".$file, ($count+1));
continue;
}

// We only need the last part of the path (from the MyBB directory to the file. i.e. inc/functions.php)
$file_path = ".".str_replace(substr(MYBB_ROOT, 0, -1), "", $path)."/".$file;

// Does this file even exist in our official list? Perhaps it's a plugin
if(array_key_exists($file_path, $checksums))
{
$filename = $path."/".$file;
$handle = fopen($filename, "rb");
$contents = '';
while(!feof($handle))
{
$contents .= fread($handle, 8192);
}
fclose($handle);

$md5 = md5($contents);

// Does it match any of our hashes (unix/windows new lines taken into consideration with the hashes)
if(!in_array($md5, $checksums[$file_path]))
{
$bad_verify_files[] = array("status" => "changed", "path" => $file_path);
}
}
unset($checksums[$file_path]);
}
@closedir($dh);
}
}

if($count == 0)
{
if(!empty($checksums))
{
foreach($checksums as $file_path => $hashes)
{
if(in_array(basename($file_path), $ignore))
{
continue;
}
$bad_verify_files[] = array("status" => "missing", "path" => $file_path);
}
}
}

// uh oh
if($count == 0)
{
return $bad_verify_files;
}
}

/**
* Returns a signed value equal to an integer
*
* @param int The integer
* @return string The signed equivalent
*/
function signed($int)
{
if($int < 0)
{
return "$int";
}
else
{
return "+$int";
}
}

/**
* Returns a securely generated seed for PHP's RNG (Random Number Generator)
*
* @param int Length of the seed bytes (8 is default. Provides good cryptographic variance)
* @return int An integer equivalent of a secure hexadecimal seed
*/
function secure_seed_rng($count=8)
{
$output = '';

// Try the unix/linux method
if(@is_readable('/dev/urandom') && ($handle = @fopen('/dev/urandom', 'rb')))
{
$output = @fread($handle, $count);
@fclose($handle);
}

// Didn't work? Do we still not have enough bytes? Use our own (less secure) rng generator
if(strlen($output) < $count)
{
$output = '';

// Close to what PHP basically uses internally to seed, but not quite.
$unique_state = microtime()[email protected]();

for($i = 0; $i < $count; $i += 16)
{
$unique_state = md5(microtime().$unique_state);
$output .= pack('H*', md5($unique_state));
}
}

// /dev/urandom and openssl will always be twice as long as $count. base64_encode will roughly take up 33% more space but crc32 will put it to 32 characters
$output = hexdec(substr(dechex(crc32(base64_encode($output))), 0, $count));

return $output;
}

/**
* Wrapper function for mt_rand. Automatically seeds using a secure seed once.
*
* @param int Optional lowest value to be returned (default: 0)
* @param int Optional highest value to be returned (default: mt_getrandmax())
* @param boolean True forces it to reseed the RNG first
* @return int An integer equivalent of a secure hexadecimal seed
*/
function my_rand($min=null, $max=null, $force_seed=false)
{
static $seeded = false;
static $obfuscator = 0;

if($seeded == false || $force_seed == true)
{
mt_srand(secure_seed_rng());
$seeded = true;

$obfuscator = abs((int) secure_seed_rng());

// Ensure that $obfuscator is <= mt_getrandmax() for 64 bit systems.
if($obfuscator > mt_getrandmax())
{
$obfuscator -= mt_getrandmax();
}
}

if($min !== null && $max !== null)
{
$distance = $max - $min;
if ($distance > 0)
{
return $min + (int)((float)($distance + 1) * (float)(mt_rand() ^ $obfuscator) / (mt_getrandmax() + 1));
}
else
{
return mt_rand($min, $max);
}
}
else
{
$val = mt_rand() ^ $obfuscator;
return $val;
}
}

/**
* More robust version of PHP's trim() function. It includes a list of UTF-16 blank characters
* from http://kb.mozillazine.org/Network.IDN.blacklist_chars
*
* @param string The string to trim from
* @param string Optional. The stripped characters can also be specified using the charlist parameter
* @return string The trimmed string
*/
function trim_blank_chrs($string, $charlist=false)
{
$hex_chrs = array(
0x20 => 1,
0x09 => 1,
0x0A => 1,
0x0D => 1,
0x0B => 1,
0xAD => 1,
0xC2 => array(0xA0 => 1,
0xAD => 1,
0xBF => 1,
0x81 => 1,
0x8D => 1,
0x90 => 1,
0x9D => 1,),
0xCC => array(0xB7 => 1, 0xB8 => 1), // \x{0337} or \x{0338}
0xE1 => array(0x85 => array(0x9F => 1, 0xA0 => 1)), // \x{115F} or \x{1160}
0xE2 => array(0x80 => array(0x80 => 1, 0x81 => 1, 0x82 => 1, 0x83 => 1, 0x84 => 1, 0x85 => 1, 0x86 => 1, 0x87 => 1, 0x88 => 1, 0x89 => 1, 0x8A => 1, 0x8B => 1, // \x{2000} to \x{200B}
0xA8 => 1, 0xA9 => 1, 0xAA => 1, 0xAB => 1, 0xAC => 1, 0xAD => 1, 0xAE => 1, 0xAF => 1), // \x{2028} to \x{202F}
0x81 => array(0x9F => 1)), // \x{205F}
0xE3 => array(0x80 => array(0x80 => 1), // \x{3000}
0x85 => array(0xA4 => 1)), // \x{3164}
0xEF => array(0xBB => array(0xBF => 1), // \x{FEFF}
0xBE => array(0xA0 => 1), // \x{FFA0}
0xBF => array(0xB9 => 1, 0xBA => 1, 0xBB => 1)), // \x{FFF9} to \x{FFFB}
);

$hex_chrs_rev = array(
0x20 => 1,
0x09 => 1,
0x0A => 1,
0x0D => 1,
0x0B => 1,
0xA0 => array(0xC2 => 1),
0xAD => array(0xC2 => 1),
0xBF => array(0xC2 => 1),
0x81 => array(0xC2 => 1),
0x8D => array(0xC2 => 1),
0x90 => array(0xC2 => 1),
0x9D => array(0xC2 => 1),
0xB8 => array(0xCC => 1), // \x{0338}
0xB7 => array(0xCC => 1), // \x{0337}
0xA0 => array(0x85 => array(0xE1 => 1)), // \x{1160}
0x9F => array(0x85 => array(0xE1 => 1), // \x{115F}
0x81 => array(0xE2 => 1)), // \x{205F}
0x80 => array(0x80 => array(0xE3 => 1, 0xE2 => 1)), // \x{3000}, \x{2000}
0x81 => array(0x80 => array(0xE2 => 1)), // \x{2001}
0x82 => array(0x80 => array(0xE2 => 1)), // \x{2002}
0x83 => array(0x80 => array(0xE2 => 1)), // \x{2003}
0x84 => array(0x80 => array(0xE2 => 1)), // \x{2004}
0x85 => array(0x80 => array(0xE2 => 1)), // \x{2005}
0x86 => array(0x80 => array(0xE2 => 1)), // \x{2006}
0x87 => array(0x80 => array(0xE2 => 1)), // \x{2007}
0x88 => array(0x80 => array(0xE2 => 1)), // \x{2008}
0x89 => array(0x80 => array(0xE2 => 1)), // \x{2009}
0x8A => array(0x80 => array(0xE2 => 1)), // \x{200A}
0x8B => array(0x80 => array(0xE2 => 1)), // \x{200B}
0xA8 => array(0x80 => array(0xE2 => 1)), // \x{2028}
0xA9 => array(0x80 => array(0xE2 => 1)), // \x{2029}
0xAA => array(0x80 => array(0xE2 => 1)), // \x{202A}
0xAB => array(0x80 => array(0xE2 => 1)), // \x{202B}
0xAC => array(0x80 => array(0xE2 => 1)), // \x{202C}
0xAD => array(0x80 => array(0xE2 => 1)), // \x{202D}
0xAE => array(0x80 => array(0xE2 => 1)), // \x{202E}
0xAF => array(0x80 => array(0xE2 => 1)), // \x{202F}
0xA4 => array(0x85 => array(0xE3 => 1)), // \x{3164}
0xBF => array(0xBB => array(0xEF => 1)), // \x{FEFF}
0xA0 => array(0xBE => array(0xEF => 1)), // \x{FFA0}
0xB9 => array(0xBF => array(0xEF => 1)), // \x{FFF9}
0xBA => array(0xBF => array(0xEF => 1)), // \x{FFFA}
0xBB => array(0xBF => array(0xEF => 1)), // \x{FFFB}
);

// Start from the beginning and work our way in
do
{
// Check to see if we have matched a first character in our utf-16 array
$offset = match_sequence($string, $hex_chrs);
if(!$offset)
{
// If not, then we must have a "good" character and we don't need to do anymore processing
break;
}
$string = substr($string, $offset);
}
while(++$i);

// Start from the end and work our way in
$string = strrev($string);
do
{
// Check to see if we have matched a first character in our utf-16 array
$offset = match_sequence($string, $hex_chrs_rev);
if(!$offset)
{
// If not, then we must have a "good" character and we don't need to do anymore processing
break;
}
$string = substr($string, $offset);
}
while(++$i);
$string = strrev($string);

if($charlist !== false)
{
$string = trim($string, $charlist);
}
else
{
$string = trim($string);
}

return $string;
}

function match_sequence($string, $array, $i=0, $n=0)
{
if($string === "")
{
return 0;
}

$ord = ord($string[$i]);
if(array_key_exists($ord, $array))
{
$level = $array[$ord];
++$n;
if(is_array($level))
{
++$i;
return match_sequence($string, $level, $i, $n);
}
return $n;
}

return 0;
}

/**
* Obtain the version of GD installed.
*
* @return float Version of GD
*/
function gd_version()
{
static $gd_version;

if($gd_version)
{
return $gd_version;
}
if(!extension_loaded('gd'))
{
return;
}

if(function_exists("gd_info"))
{
$gd_info = gd_info();
preg_match('/\d/', $gd_info['GD Version'], $gd);
$gd_version = $gd[0];
}
else
{
ob_start();
phpinfo(8);
$info = ob_get_contents();
ob_end_clean();
$info = stristr($info, 'gd version');
preg_match('/\d/', $info, $gd);
$gd_version = $gd[0];
}

return $gd_version;
}

?>
perhaps just attach the file rather than include it

Attached is the functions.php file.
(01-23-2012, 07:41 PM)ronniebellie Wrote: [ -> ]Attached is the functions.php file.

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