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vichan/inc/functions.php
Michael Save a38831a1ef using HTTP/1.1, not HTTP/1.0 for PURGE
2012-04-03 01:06:38 +10:00

1779 lines
55 KiB
PHP
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<?php
if($_SERVER['SCRIPT_FILENAME'] == str_replace('\\', '/', __FILE__)) {
// You cannot request this file directly.
header('Location: ../', true, 302);
exit;
}
require 'inc/events.php';
require 'contrib/gettext/gettext.inc';
register_shutdown_function('fatal_error_handler');
mb_internal_encoding('UTF-8');
loadConfig();
function loadConfig() {
global $board, $config, $__ip, $debug, $__version;
reset_events();
if(!defined('PHP_VERSION_ID')) {
$version = explode('.', PHP_VERSION);
define('PHP_VERSION_ID', ($version[0] * 10000 + $version[1] * 100 + $version[2]));
}
if(!isset($_SERVER['REMOTE_ADDR']))
$_SERVER['REMOTE_ADDR'] = '0.0.0.0';
$arrays = Array('db', 'cache', 'cookies', 'error', 'dir', 'mod', 'spam', 'flood_filters', 'wordfilters', 'custom_capcode', 'custom_tripcode', 'dnsbl', 'dnsbl_exceptions', 'remote', 'allowed_ext', 'allowed_ext_files', 'file_icons', 'footer', 'stylesheets', 'additional_javascript', 'markup');
$config = Array();
foreach($arrays as $key) {
$config[$key] = Array();
}
require 'inc/config.php';
if (file_exists('inc/instance-config.php')) {
require 'inc/instance-config.php';
}
if(isset($board['dir']) && file_exists($board['dir'] . '/config.php')) {
require $board['dir'] . '/config.php';
}
if(!isset($__version))
$__version = file_exists('.installed') ? trim(file_get_contents('.installed')) : false;
$config['version'] = $__version;
if($config['debug']) {
if(!isset($debug)) {
$debug = Array('sql' => Array(), 'purge' => Array(), 'cached' => Array());
$debug['start'] = microtime(true);
}
}
date_default_timezone_set($config['timezone']);
if(!isset($config['blotter']))
$config['blotter'] = false;
if(!isset($config['post_url']))
$config['post_url'] = $config['root'] . $config['file_post'];
if(!isset($config['referer_match']))
if(isset($_SERVER['HTTP_HOST'])) {
$config['referer_match'] = '/^' .
(preg_match($config['url_regex'], $config['root']) ? '' :
'https?:\/\/' . $_SERVER['HTTP_HOST']) .
preg_quote($config['root'], '/') .
'(' .
str_replace('%s', '\w+', preg_quote($config['board_path'], '/')) .
'(' .
preg_quote($config['file_index'], '/') . '|' .
str_replace('%d', '\d+', preg_quote($config['file_page'])) .
')?' .
'|' .
str_replace('%s', '\w+', preg_quote($config['board_path'], '/')) .
preg_quote($config['dir']['res'], '/') .
str_replace('%d', '\d+', preg_quote($config['file_page'], '/')) .
'|' .
preg_quote($config['file_mod'], '/') . '\?\/.+' .
')([#?](.+)?)?$/i';
} else {
// CLI mode
$config['referer_match'] = '//';
}
if(!isset($config['cookies']['path']))
$config['cookies']['path'] = &$config['root'];
if(!isset($config['dir']['static']))
$config['dir']['static'] = $config['root'] . 'static/';
if(!isset($config['image_sticky']))
$config['image_sticky'] = $config['dir']['static'] . 'sticky.gif';
if(!isset($config['image_locked']))
$config['image_locked'] = $config['dir']['static'] . 'locked.gif';
if(!isset($config['image_bumplocked']))
$config['image_bumplocked'] = $config['dir']['static'] . 'sage.gif';
if(!isset($config['image_deleted']))
$config['image_deleted'] = $config['dir']['static'] . 'deleted.png';
if(!isset($config['image_zip']))
$config['image_zip'] = $config['dir']['static'] . 'zip.png';
if(!isset($config['uri_thumb']))
$config['uri_thumb'] = $config['root'] . $board['dir'] . $config['dir']['thumb'];
elseif(isset($board['dir']))
$config['uri_thumb'] = sprintf($config['uri_thumb'], $board['dir']);
if(!isset($config['uri_img']))
$config['uri_img'] = $config['root'] . $board['dir'] . $config['dir']['img'];
elseif(isset($board['dir']))
$config['uri_img'] = sprintf($config['uri_img'], $board['dir']);
if(!isset($config['uri_stylesheets']))
$config['uri_stylesheets'] = $config['root'] . 'stylesheets/';
if(!isset($config['url_stylesheet']))
$config['url_stylesheet'] = $config['uri_stylesheets'] . 'style.css';
if(!isset($config['url_javascript']))
$config['url_javascript'] = $config['root'] . $config['file_script'];
if(!isset($config['additional_javascript_url']))
$config['additional_javascript_url'] = $config['root'];
if($config['root_file']) {
chdir($config['root_file']);
}
if($config['verbose_errors']) {
error_reporting(E_ALL);
ini_set('display_errors', 1);
}
// Keep the original address to properly comply with other board configurations
if(!isset($__ip))
$__ip = $_SERVER['REMOTE_ADDR'];
// ::ffff:0.0.0.0
if(preg_match('/^\:\:(ffff\:)?(\d+\.\d+\.\d+\.\d+)$/', $__ip, $m))
$_SERVER['REMOTE_ADDR'] = $m[2];
if(_setlocale(LC_ALL, $config['locale']) === false) {
$error = function_exists('error') ? 'error' : 'basic_error_function_because_the_other_isnt_loaded_yet';
$error('The specified locale (' . $config['locale'] . ') does not exist on your platform!');
}
if(extension_loaded('gettext')) {
bindtextdomain('tinyboard', './inc/locale');
bind_textdomain_codeset('tinyboard', 'UTF-8');
textdomain('tinyboard');
} else {
_bindtextdomain('tinyboard', './inc/locale');
_bind_textdomain_codeset('tinyboard', 'UTF-8');
_textdomain('tinyboard');
}
if($config['syslog'])
openlog('tinyboard', LOG_ODELAY, LOG_SYSLOG); // open a connection to sysem logger
if($config['recaptcha'])
require_once 'inc/contrib/recaptcha/recaptchalib.php';
if($config['cache']['enabled'])
require_once 'inc/cache.php';
}
function basic_error_function_because_the_other_isnt_loaded_yet($message, $priority = true) {
global $config;
if($config['syslog'] && $priority !== false) {
// Use LOG_NOTICE instead of LOG_ERR or LOG_WARNING because most error message are not significant.
_syslog($priority !== true ? $priority : LOG_NOTICE, $message);
}
// Yes, this is horrible.
die('<!DOCTYPE html><html><head><title>Error</title>' .
'<style type="text/css">' .
'body{text-align:center;font-family:arial, helvetica, sans-serif;font-size:10pt;}' .
'p{padding:0;margin:20px 0;}' .
'p.c{font-size:11px;}' .
'</style></head>' .
'<body><h2>Error</h2>' . $message . '<hr/>' .
'<p class="c">This alternative error page is being displayed because the other couldn\'t be found or hasn\'t loaded yet.</p></body></html>');
}
function fatal_error_handler() {
if($error = error_get_last()) {
if($error['type'] == E_ERROR) {
if(function_exists('error')) {
error('Caught fatal error: ' . $error['message'] . ' in <strong>' . $error['file'] . '</strong> on line ' . $error['line'], LOG_ERR);
} else {
basic_error_function_because_the_other_isnt_loaded_yet('Caught fatal error: ' . $error['message'] . ' in ' . $error['file'] . ' on line ' . $error['line'], LOG_ERR);
}
}
}
}
function _syslog($priority, $message) {
if( isset($_SERVER['REMOTE_ADDR']) &&
isset($_SERVER['REQUEST_METHOD']) &&
isset($_SERVER['REQUEST_URI'])) {
// CGI
syslog($priority, $message . ' - client: ' . $_SERVER['REMOTE_ADDR'] . ', request: "' . $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . '"');
} else {
syslog($priority, $message);
}
}
function loadThemeConfig($_theme) {
global $config;
if(!file_exists($config['dir']['themes'] . '/' . $_theme . '/info.php'))
return false;
// Load theme information into $theme
include $config['dir']['themes'] . '/' . $_theme . '/info.php';
return $theme;
}
function rebuildTheme($theme, $action) {
global $config, $_theme;
$_theme = $theme;
$theme = loadThemeConfig($_theme);
if(file_exists($config['dir']['themes'] . '/' . $_theme . '/theme.php')) {
require_once $config['dir']['themes'] . '/' . $_theme . '/theme.php';
$theme['build_function']($action, themeSettings($_theme));
}
}
function rebuildThemes($action) {
global $config, $_theme;
// List themes
$query = query("SELECT `theme` FROM `theme_settings` WHERE `name` IS NULL AND `value` IS NULL") or error(db_error());
while($theme = $query->fetch()) {
rebuildTheme($theme['theme'], $action);
}
}
function themeSettings($theme) {
$query = prepare("SELECT `name`, `value` FROM `theme_settings` WHERE `theme` = :theme AND `name` IS NOT NULL");
$query->bindValue(':theme', $theme);
$query->execute() or error(db_error($query));
$settings = Array();
while($s = $query->fetch()) {
$settings[$s['name']] = $s['value'];
}
return $settings;
}
function sprintf3($str, $vars, $delim = '%') {
$replaces = array();
foreach($vars as $k => $v) {
$replaces[$delim . $k . $delim] = $v;
}
return str_replace(array_keys($replaces),
array_values($replaces), $str);
}
function setupBoard($array) {
global $board, $config;
$board = Array(
'id' => $array['id'],
'uri' => $array['uri'],
'name' => $array['title'],
'title' => $array['subtitle']);
$board['dir'] = sprintf($config['board_path'], $board['uri']);
$board['url'] = sprintf($config['board_abbreviation'], $board['uri']);
loadConfig();
if(!file_exists($board['dir']))
mkdir($board['dir'], 0777) or error("Couldn't create " . $board['dir'] . ". Check permissions.", true);
if(!file_exists($board['dir'] . $config['dir']['img']))
@mkdir($board['dir'] . $config['dir']['img'], 0777) or error("Couldn't create " . $board['dir'] . $config['dir']['img'] . ". Check permissions.", true);
if(!file_exists($board['dir'] . $config['dir']['thumb']))
@mkdir($board['dir'] . $config['dir']['thumb'], 0777) or error("Couldn't create " . $board['dir'] . $config['dir']['img'] . ". Check permissions.", true);
if(!file_exists($board['dir'] . $config['dir']['res']))
@mkdir($board['dir'] . $config['dir']['res'], 0777) or error("Couldn't create " . $board['dir'] . $config['dir']['img'] . ". Check permissions.", true);
}
function openBoard($uri) {
global $config;
if($config['cache']['enabled'] && ($board = cache::get('board_' . $uri))) {
setupBoard($board);
return true;
}
$query = prepare("SELECT * FROM `boards` WHERE `uri` = :uri LIMIT 1");
$query->bindValue(':uri', $uri);
$query->execute() or error(db_error($query));
if($board = $query->fetch()) {
if($config['cache']['enabled'])
cache::set('board_' . $uri, $board);
setupBoard($board);
return true;
} else return false;
}
function boardTitle($uri) {
global $config;
if($config['cache']['enabled'] && ($board = cache::get('board_' . $uri))) {
return $board['title'];
}
$query = prepare("SELECT `title` FROM `boards` WHERE `uri` = :uri LIMIT 1");
$query->bindValue(':uri', $uri);
$query->execute() or error(db_error($query));
if($title = $query->fetch()) {
return $title['title'];
} else return false;
}
function purge($uri) {
global $config, $debug;
if(preg_match($config['referer_match'], $config['root'])) {
$uri = (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/') . $uri;
} else {
$uri = $config['root'] . $uri;
}
if($config['debug']) {
$debug['purge'][] = $uri;
}
foreach($config['purge'] as &$purge) {
$host = &$purge[0];
$port = &$purge[1];
$http_host = isset($purge[2]) ? $purge[2] : $_SERVER['HTTP_HOST'];
$request = "PURGE {$uri} HTTP/1.1\r\nHost: {$http_host}\r\nUser-Agent: Tinyboard\r\nConnection: Close\r\n\r\n";
if($fp = fsockopen($host, $port, $errno, $errstr, $config['purge_timeout'])) {
fwrite($fp, $request);
fclose($fp);
} else {
// Cannot connect?
error('Could not PURGE for ' . $host);
}
}
}
function file_write($path, $data, $simple = false, $skip_purge = false) {
global $config;
if(preg_match('/^remote:\/\/(.+)\:(.+)$/', $path, $m)) {
if(isset($config['remote'][$m[1]])) {
require_once 'inc/remote.php';
$remote = new Remote($config['remote'][$m[1]]);
$remote->write($data, $m[2]);
return;
} else {
error('Invalid remote server: ' . $m[1]);
}
}
if(!$fp = fopen($path, $simple ? 'w' : 'c'))
error('Unable to open file for writing: ' . $path);
// File locking
if(!$simple && !flock($fp, LOCK_EX)) {
error('Unable to lock file: ' . $path);
}
// Truncate file
if(!$simple && !ftruncate($fp, 0))
error('Unable to truncate file: ' . $path);
// Write data
if(fwrite($fp, $data) === false)
error('Unable to write to file: ' . $path);
// Unlock
if(!$simple)
flock($fp, LOCK_UN);
// Close
if(!fclose($fp))
error('Unable to close file: ' . $path);
if(!$skip_purge && isset($config['purge']) && isset($_SERVER['HTTP_HOST'])) {
// Purge cache
if(basename($path) == $config['file_index']) {
// Index file (/index.html); purge "/" as well
$uri = dirname($path);
// root
if($uri == '.')
$uri = '';
else
$uri .= '/';
purge($uri);
}
purge($path);
}
event('write', $path);
}
function file_unlink($path) {
global $config, $debug;
if($config['debug']) {
if(!isset($debug['unlink']))
$debug['unlink'] = Array();
$debug['unlink'][] = $path;
}
$ret = @unlink($path);
if(isset($config['purge']) && $path[0] != '/' && isset($_SERVER['HTTP_HOST'])) {
// Purge cache
if(basename($path) == $config['file_index']) {
// Index file (/index.html); purge "/" as well
$uri = dirname($path);
// root
if($uri == '.')
$uri = '';
else
$uri .= '/';
purge($uri);
}
purge($path);
}
event('unlink', $path);
return $ret;
}
function hasPermission($action = null, $board = null, $_mod = null) {
global $config;
if(isset($_mod))
$mod = &$_mod;
else
global $mod;
if(!is_array($mod))
return false;
if(isset($action) && $mod['type'] < $action)
return false;
if(!isset($board) || $config['mod']['skip_per_board'])
return true;
if(!isset($mod['boards']))
return false;
if(!in_array('*', $mod['boards']) && !in_array($board, $mod['boards']))
return false;
return true;
}
function listBoards() {
global $config;
if($config['cache']['enabled'] && ($boards = cache::get('all_boards')))
return $boards;
$query = query("SELECT * FROM `boards` ORDER BY `uri`") or error(db_error());
$boards = $query->fetchAll();
if($config['cache']['enabled'])
cache::set('all_boards', $boards);
return $boards;
}
function checkFlood($post) {
global $board, $config;
$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE (`ip` = :ip AND `time` >= :floodtime) OR (`ip` = :ip AND `body` != '' AND `body` = :body AND `time` >= :floodsameiptime) OR (`body` != '' AND `body` = :body AND `time` >= :floodsametime) LIMIT 1", $board['uri']));
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->bindValue(':body', $post['body'], PDO::PARAM_INT);
$query->bindValue(':floodtime', time()-$config['flood_time'], PDO::PARAM_INT);
$query->bindValue(':floodsameiptime', time()-$config['flood_time_ip'], PDO::PARAM_INT);
$query->bindValue(':floodsametime', time()-$config['flood_time_same'], PDO::PARAM_INT);
$query->execute() or error(db_error($query));
$flood = (bool)$query->fetch();
if(event('check-flood', $post))
return true;
return $flood;
}
function until($timestamp) {
$difference = $timestamp - time();
if($difference < 60) {
return $difference . ' second' . ($difference != 1 ? 's' : '');
} elseif($difference < 60*60) {
return ($num = round($difference/(60))) . ' minute' . ($num != 1 ? 's' : '');
} elseif($difference < 60*60*24) {
return ($num = round($difference/(60*60))) . ' hour' . ($num != 1 ? 's' : '');
} elseif($difference < 60*60*24*7) {
return ($num = round($difference/(60*60*24))) . ' day' . ($num != 1 ? 's' : '');
} elseif($difference < 60*60*24*365) {
return ($num = round($difference/(60*60*24*7))) . ' week' . ($num != 1 ? 's' : '');
} else {
return ($num = round($difference/(60*60*24*365))) . ' year' . ($num != 1 ? 's' : '');
}
}
function ago($timestamp) {
$difference = time() - $timestamp;
if($difference < 60) {
return $difference . ' second' . ($difference != 1 ? 's' : '');
} elseif($difference < 60*60) {
return ($num = round($difference/(60))) . ' minute' . ($num != 1 ? 's' : '');
} elseif($difference < 60*60*24) {
return ($num = round($difference/(60*60))) . ' hour' . ($num != 1 ? 's' : '');
} elseif($difference < 60*60*24*7) {
return ($num = round($difference/(60*60*24))) . ' day' . ($num != 1 ? 's' : '');
} elseif($difference < 60*60*24*365) {
return ($num = round($difference/(60*60*24*7))) . ' week' . ($num != 1 ? 's' : '');
} else {
return ($num = round($difference/(60*60*24*365))) . ' year' . ($num != 1 ? 's' : '');
}
}
function displayBan($ban) {
global $config;
$ban['ip'] = $_SERVER['REMOTE_ADDR'];
// Show banned page and exit
die(
Element('page.html', Array(
'title' => 'Banned!',
'config' => $config,
'body' => Element('banned.html', Array(
'config' => $config,
'ban' => $ban
)
))
));
}
function checkBan($board = 0) {
global $config;
if(!isset($_SERVER['REMOTE_ADDR'])) {
// Server misconfiguration
return;
}
if(event('check-ban', $board))
return true;
$query = prepare("SELECT `set`, `expires`, `reason`, `board`, `uri`, `bans`.`id` FROM `bans` LEFT JOIN `boards` ON `boards`.`id` = `board` WHERE (`board` IS NULL OR `uri` = :board) AND `ip` = :ip ORDER BY `expires` IS NULL DESC, `expires` DESC, `expires` DESC LIMIT 1");
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->bindValue(':board', $board);
$query->execute() or error(db_error($query));
if($query->rowCount() < 1 && $config['ban_range']) {
$query = prepare("SELECT `set`, `expires`, `reason`, `board`, `uri`, `bans`.`id` FROM `bans` LEFT JOIN `boards` ON `boards`.`id` = `board` WHERE (`board` IS NULL OR `uri` = :board) AND :ip LIKE REPLACE(REPLACE(`ip`, '%', '!%'), '*', '%') ESCAPE '!' ORDER BY `expires` IS NULL DESC, `expires` DESC LIMIT 1");
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->bindValue(':board', $board);
$query->execute() or error(db_error($query));
}
if($query->rowCount() < 1 && $config['ban_cidr'] && !isIPv6()) {
// my most insane SQL query yet
$query = prepare("SELECT `set`, `expires`, `reason`, `board`, `uri`, `bans`.`id` FROM `bans` LEFT JOIN `boards` ON `boards`.`id` = `board` WHERE (`board` IS NULL OR `uri` = :board)
AND (
`ip` REGEXP '^(\[0-9]+\.\[0-9]+\.\[0-9]+\.\[0-9]+\)\/(\[0-9]+)$'
AND
:ip >= INET_ATON(SUBSTRING_INDEX(`ip`, '/', 1))
AND
:ip < INET_ATON(SUBSTRING_INDEX(`ip`, '/', 1)) + POW(2, 32 - SUBSTRING_INDEX(`ip`, '/', -1))
)
ORDER BY `expires` IS NULL DESC, `expires` DESC LIMIT 1");
$query->bindValue(':ip', ip2long($_SERVER['REMOTE_ADDR']));
$query->bindValue(':board', $board);
$query->execute() or error(db_error($query));
}
if($ban = $query->fetch()) {
if($ban['expires'] && $ban['expires'] < time()) {
// Ban expired
$query = prepare("DELETE FROM `bans` WHERE `id` = :id LIMIT 1");
$query->bindValue(':id', $ban['id'], PDO::PARAM_INT);
$query->execute() or error(db_error($query));
return;
}
displayBan($ban);
}
}
function threadLocked($id) {
global $board;
if(event('check-locked', $id))
return true;
$query = prepare(sprintf("SELECT `locked` FROM `posts_%s` WHERE `id` = :id AND `thread` IS NULL LIMIT 1", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error());
if(!$post = $query->fetch()) {
// Non-existant, so it can't be locked...
return false;
}
return (bool)$post['locked'];
}
function threadSageLocked($id) {
global $board;
if(event('check-sage-locked', $id))
return true;
$query = prepare(sprintf("SELECT `sage` FROM `posts_%s` WHERE `id` = :id AND `thread` IS NULL LIMIT 1", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error());
if(!$post = $query->fetch()) {
// Non-existant, so it can't be locked...
return false;
}
return (bool) $post['sage'];
}
function threadExists($id) {
global $board;
$query = prepare(sprintf("SELECT 1 FROM `posts_%s` WHERE `id` = :id AND `thread` IS NULL LIMIT 1", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error());
if($query->rowCount()) {
return true;
} else return false;
}
function post($post, $OP) {
global $pdo, $board;
$query = prepare(sprintf("INSERT INTO `posts_%s` VALUES ( NULL, :thread, :subject, :email, :name, :trip, :capcode, :body, :body_nomarkup, :time, :time, :thumb, :thumbwidth, :thumbheight, :file, :width, :height, :filesize, :filename, :filehash, :password, :ip, :sticky, :locked, 0, :embed)", $board['uri']));
// Basic stuff
if(!empty($post['subject'])) {
$query->bindValue(':subject', $post['subject']);
} else {
$query->bindValue(':subject', NULL, PDO::PARAM_NULL);
}
if(!empty($post['email'])) {
$query->bindValue(':email', $post['email']);
} else {
$query->bindValue(':email', NULL, PDO::PARAM_NULL);
}
if(!empty($post['trip'])) {
$query->bindValue(':trip', $post['trip']);
} else {
$query->bindValue(':trip', NULL, PDO::PARAM_NULL);
}
$query->bindValue(':name', $post['name']);
$query->bindValue(':body', $post['body']);
$query->bindValue(':body_nomarkup', $post['body_nomarkup']);
$query->bindValue(':time', isset($post['time']) ? $post['time'] : time(), PDO::PARAM_INT);
$query->bindValue(':password', $post['password']);
$query->bindValue(':ip', isset($post['ip']) ? $post['ip'] : $_SERVER['REMOTE_ADDR']);
if($post['mod'] && $post['sticky']) {
$query->bindValue(':sticky', 1, PDO::PARAM_INT);
} else {
$query->bindValue(':sticky', 0, PDO::PARAM_INT);
}
if($post['mod'] && $post['locked']) {
$query->bindValue(':locked', 1, PDO::PARAM_INT);
} else {
$query->bindValue(':locked', 0, PDO::PARAM_INT);
}
if($post['mod'] && isset($post['capcode']) && $post['capcode']) {
$query->bindValue(':capcode', $post['capcode'], PDO::PARAM_INT);
} else {
$query->bindValue(':capcode', NULL, PDO::PARAM_NULL);
}
if(!empty($post['embed'])) {
$query->bindValue(':embed', $post['embed']);
} else {
$query->bindValue(':embed', NULL, PDO::PARAM_NULL);
}
if($OP) {
// No parent thread, image
$query->bindValue(':thread', null, PDO::PARAM_NULL);
} else {
$query->bindValue(':thread', $post['thread'], PDO::PARAM_INT);
}
if($post['has_file']) {
$query->bindValue(':thumb', $post['thumb']);
$query->bindValue(':thumbwidth', $post['thumbwidth'], PDO::PARAM_INT);
$query->bindValue(':thumbheight', $post['thumbheight'], PDO::PARAM_INT);
$query->bindValue(':file', $post['file']);
$query->bindValue(':width', $post['width'], PDO::PARAM_INT);
$query->bindValue(':height', $post['height'], PDO::PARAM_INT);
$query->bindValue(':filesize', $post['filesize'], PDO::PARAM_INT);
$query->bindValue(':filename', $post['filename']);
$query->bindValue(':filehash', $post['filehash']);
} else {
$query->bindValue(':thumb', null, PDO::PARAM_NULL);
$query->bindValue(':thumbwidth', null, PDO::PARAM_NULL);
$query->bindValue(':thumbheight', null, PDO::PARAM_NULL);
$query->bindValue(':file', null, PDO::PARAM_NULL);
$query->bindValue(':width', null, PDO::PARAM_NULL);
$query->bindValue(':height', null, PDO::PARAM_NULL);
$query->bindValue(':filesize', null, PDO::PARAM_NULL);
$query->bindValue(':filename', null, PDO::PARAM_NULL);
$query->bindValue(':filehash', null, PDO::PARAM_NULL);
}
$query->execute() or error(db_error($query));
return $pdo->lastInsertId();
}
function bumpThread($id) {
global $board;
if(event('bump', $id))
return true;
$query = prepare(sprintf("UPDATE `posts_%s` SET `bump` = :time WHERE `id` = :id AND `thread` IS NULL", $board['uri']));
$query->bindValue(':time', time(), PDO::PARAM_INT);
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
}
// Remove file from post
function deleteFile($id, $remove_entirely_if_already=true) {
global $board, $config;
$query = prepare(sprintf("SELECT `thread`,`thumb`,`file` FROM `posts_%s` WHERE `id` = :id LIMIT 1", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
if($query->rowCount() < 1) {
error($config['error']['invalidpost']);
}
$post = $query->fetch();
if($post['file'] == 'deleted' && !$post['thread'])
return; // Can't delete OP's image completely.
$query = prepare(sprintf("UPDATE `posts_%s` SET `thumb` = NULL, `thumbwidth` = NULL, `thumbheight` = NULL, `filewidth` = NULL, `fileheight` = NULL, `filesize` = NULL, `filename` = NULL, `filehash` = NULL, `file` = :file WHERE `id` = :id", $board['uri']));
if($post['file'] == 'deleted' && $remove_entirely_if_already) {
// Already deleted; remove file fully
$query->bindValue(':file', null, PDO::PARAM_NULL);
} else {
// Delete thumbnail
file_unlink($board['dir'] . $config['dir']['thumb'] . $post['thumb']);
// Delete file
file_unlink($board['dir'] . $config['dir']['img'] . $post['file']);
// Set file to 'deleted'
$query->bindValue(':file', 'deleted', PDO::PARAM_INT);
}
// Update database
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
if($post['thread'])
buildThread($post['thread']);
}
// rebuild post (markup)
function rebuildPost($id) {
global $board;
$query = prepare(sprintf("SELECT `body_nomarkup`, `thread` FROM `posts_%s` WHERE `id` = :id", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
if(!$post = $query->fetch())
return false;
if(!$post['body_nomarkup'])
return false;
markup($body = &$post['body_nomarkup']);
$query = prepare(sprintf("UPDATE `posts_%s` SET `body` = :body WHERE `id` = :id", $board['uri']));
$query->bindValue(':body', $body);
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
buildThread($post['thread'] ? $post['thread'] : $id);
return true;
}
// Delete a post (reply or thread)
function deletePost($id, $error_if_doesnt_exist=true, $rebuild_after=true) {
global $board, $config;
// Select post and replies (if thread) in one query
$query = prepare(sprintf("SELECT `id`,`thread`,`thumb`,`file` FROM `posts_%s` WHERE `id` = :id OR `thread` = :id", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
if($query->rowCount() < 1) {
if($error_if_doesnt_exist)
error($config['error']['invalidpost']);
else return false;
}
// Delete posts and maybe replies
while($post = $query->fetch()) {
if(!$post['thread']) {
// Delete thread HTML page
file_unlink($board['dir'] . $config['dir']['res'] . sprintf($config['file_page'], $post['id']));
} elseif($query->rowCount() == 1) {
// Rebuild thread
$rebuild = &$post['thread'];
}
if($post['thumb']) {
// Delete thumbnail
file_unlink($board['dir'] . $config['dir']['thumb'] . $post['thumb']);
}
if($post['file']) {
// Delete file
file_unlink($board['dir'] . $config['dir']['img'] . $post['file']);
}
}
$query = prepare(sprintf("DELETE FROM `posts_%s` WHERE `id` = :id OR `thread` = :id", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
$query = prepare("SELECT `board`, `post` FROM `cites` WHERE `target_board` = :board AND `target` = :id");
$query->bindValue(':board', $board['uri']);
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
while($cite = $query->fetch()) {
if($board['uri'] != $cite['board']) {
if(!isset($tmp_board))
$tmp_board = $board['uri'];
openBoard($cite['board']);
}
rebuildPost($cite['post']);
}
if(isset($tmp_board))
openBoard($tmp_board);
$query = prepare("DELETE FROM `cites` WHERE (`target_board` = :board AND `target` = :id) OR (`board` = :board AND `post` = :id)");
$query->bindValue(':board', $board['uri']);
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
if(isset($rebuild) && $rebuild_after) {
buildThread($rebuild);
}
return true;
}
function clean() {
global $board, $config;
$offset = round($config['max_pages']*$config['threads_per_page']);
// I too wish there was an easier way of doing this...
$query = prepare(sprintf("SELECT `id` FROM `posts_%s` WHERE `thread` IS NULL ORDER BY `sticky` DESC, `bump` DESC LIMIT :offset, 9001", $board['uri']));
$query->bindValue(':offset', $offset, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
while($post = $query->fetch()) {
deletePost($post['id']);
}
}
function index($page, $mod=false) {
global $board, $config, $debug;
$body = '';
$offset = round($page*$config['threads_per_page']-$config['threads_per_page']);
$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE `thread` IS NULL ORDER BY `sticky` DESC, `bump` DESC LIMIT :offset,:threads_per_page", $board['uri']));
$query->bindValue(':offset', $offset, PDO::PARAM_INT);
$query->bindValue(':threads_per_page', $config['threads_per_page'], PDO::PARAM_INT);
$query->execute() or error(db_error($query));
if($query->rowcount() < 1 && $page > 1) return false;
while($th = $query->fetch()) {
if(!$mod && $config['cache']['enabled']) {
if($built = cache::get("thread_index_{$board['uri']}_{$th['id']}")) {
$body .= $built;
continue;
}
}
$thread = new Thread($th['id'], $th['subject'], $th['email'], $th['name'], $th['trip'], $th['capcode'], $th['body'], $th['time'], $th['thumb'], $th['thumbwidth'], $th['thumbheight'], $th['file'], $th['filewidth'], $th['fileheight'], $th['filesize'], $th['filename'], $th['ip'], $th['sticky'], $th['locked'], $th['sage'], $th['embed'], $mod ? '?/' : $config['root'], $mod);
$posts = prepare(sprintf("SELECT * FROM `posts_%s` WHERE `thread` = :id ORDER BY `id` DESC LIMIT :limit", $board['uri']));
$posts->bindValue(':id', $th['id']);
$posts->bindValue(':limit', ($th['sticky'] ? $config['threads_preview_sticky'] : $config['threads_preview']), PDO::PARAM_INT);
$posts->execute() or error(db_error($posts));
$num_images = 0;
while($po = $posts->fetch()) {
if($po['file'])
$num_images++;
$thread->add(new Post($po['id'], $th['id'], $po['subject'], $po['email'], $po['name'], $po['trip'], $po['capcode'], $po['body'], $po['time'], $po['thumb'], $po['thumbwidth'], $po['thumbheight'], $po['file'], $po['filewidth'], $po['fileheight'], $po['filesize'], $po['filename'], $po['ip'], $po['embed'], $mod ? '?/' : $config['root'], $mod));
}
if($posts->rowCount() == ($th['sticky'] ? $config['threads_preview_sticky'] : $config['threads_preview'])) {
$count = prepare(sprintf("SELECT COUNT(`id`) as `num` FROM `posts_%s` WHERE `thread` = :thread UNION ALL SELECT COUNT(`id`) FROM `posts_%s` WHERE `file` IS NOT NULL AND `thread` = :thread", $board['uri'], $board['uri']));
$count->bindValue(':thread', $th['id'], PDO::PARAM_INT);
$count->execute() or error(db_error($count));
$c = $count->fetch();
$thread->omitted = $c['num'] - ($th['sticky'] ? $config['threads_preview_sticky'] : $config['threads_preview']);
$c = $count->fetch();
$thread->omitted_images = $c['num'] - $num_images;
}
$thread->posts = array_reverse($thread->posts);
$body .= $thread->build(true);
}
return Array(
'board'=>$board,
'body'=>$body,
'post_url' => $config['post_url'],
'config' => $config,
'boardlist' => createBoardlist($mod)
);
}
function getPageButtons($pages, $mod=false) {
global $config, $board;
$btn = Array();
$root = ($mod ? '?/' : $config['root']) . $board['dir'];
foreach($pages as $num => $page) {
if(isset($page['selected'])) {
// Previous button
if($num == 0) {
// There is no previous page.
$btn['prev'] = _('Previous');
} else {
$loc = ($mod ? '?/' . $board['uri'] . '/' : '') .
($num == 1 ?
$config['file_index']
:
sprintf($config['file_page'], $num)
);
$btn['prev'] = '<form action="' . ($mod ? '' : $root . $loc) . '" method="get">' .
($mod ?
'<input type="hidden" name="status" value="301" />' .
'<input type="hidden" name="r" value="' . htmlentities($loc) . '" />'
:'') .
'<input type="submit" value="' . _('Previous') . '" /></form>';
}
if($num == count($pages) - 1) {
// There is no next page.
$btn['next'] = _('Next');
} else {
$loc = ($mod ? '?/' . $board['uri'] . '/' : '') . sprintf($config['file_page'], $num + 2);
$btn['next'] = '<form action="' . ($mod ? '' : $root . $loc) . '" method="get">' .
($mod ?
'<input type="hidden" name="status" value="301" />' .
'<input type="hidden" name="r" value="' . htmlentities($loc) . '" />'
:'') .
'<input type="submit" value="' . _('Next') . '" /></form>';
}
}
}
return $btn;
}
function getPages($mod=false) {
global $board, $config;
// Count threads
$query = query(sprintf("SELECT COUNT(`id`) as `num` FROM `posts_%s` WHERE `thread` IS NULL", $board['uri'])) or error(db_error());
$count = current($query->fetch());
$count = floor(($config['threads_per_page'] + $count - 1) / $config['threads_per_page']);
if($count < 1) $count = 1;
$pages = Array();
for($x=0;$x<$count && $x<$config['max_pages'];$x++) {
$pages[] = Array(
'num' => $x+1,
'link' => $x==0 ? ($mod ? '?/' : $config['root']) . $board['dir'] . $config['file_index'] : ($mod ? '?/' : $config['root']) . $board['dir'] . sprintf($config['file_page'], $x+1)
);
}
return $pages;
}
function makerobot($body) {
global $config;
$body = strtolower($body);
// Leave only letters
$body = preg_replace('/[^a-z]/i', '', $body);
// Remove repeating characters
if($config['robot_strip_repeating'])
$body = preg_replace('/(.)\\1+/', '$1', $body);
return sha1($body);
}
function checkRobot($body) {
if(empty($body))
return true;
if(event('check-robot', $body))
return true;
$body = makerobot($body);
$query = prepare("SELECT 1 FROM `robot` WHERE `hash` = :hash LIMIT 1");
$query->bindValue(':hash', $body);
$query->execute() or error(db_error($query));
if($query->fetch()) {
return true;
} else {
// Insert new hash
$query = prepare("INSERT INTO `robot` VALUES (:hash)");
$query->bindValue(':hash', $body);
$query->execute() or error(db_error($query));
return false;
}
}
function numPosts($id) {
global $board;
$query = prepare(sprintf("SELECT COUNT(*) as `count` FROM `posts_%s` WHERE `thread` = :thread", $board['uri']));
$query->bindValue(':thread', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
$result = $query->fetch();
return $result['count'];
}
function muteTime() {
global $config;
if($time = event('mute-time'))
return $time;
// Find number of mutes in the past X hours
$query = prepare("SELECT COUNT(*) as `count` FROM `mutes` WHERE `time` >= :time AND `ip` = :ip");
$query->bindValue(':time', time()-($config['robot_mute_hour']*3600), PDO::PARAM_INT);
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->execute() or error(db_error($query));
$result = $query->fetch();
if($result['count'] == 0) return 0;
return pow($config['robot_mute_multiplier'], $result['count']);
}
function mute() {
// Insert mute
$query = prepare("INSERT INTO `mutes` VALUES (:ip, :time)");
$query->bindValue(':time', time(), PDO::PARAM_INT);
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->execute() or error(db_error($query));
return muteTime();
}
function checkMute() {
global $config, $debug;
if($config['cache']['enabled']) {
// Cached mute?
if(($mute = cache::get("mute_${_SERVER['REMOTE_ADDR']}")) && ($mutetime = cache::get("mutetime_${_SERVER['REMOTE_ADDR']}"))) {
error(sprintf($config['error']['youaremuted'], $mute['time'] + $mutetime - time()));
}
}
$mutetime = muteTime();
if($mutetime > 0) {
// Find last mute time
$query = prepare("SELECT `time` FROM `mutes` WHERE `ip` = :ip ORDER BY `time` DESC LIMIT 1");
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
$query->execute() or error(db_error($query));
if(!$mute = $query->fetch()) {
// What!? He's muted but he's not muted...
return;
}
if($mute['time'] + $mutetime > time()) {
if($config['cache']['enabled']) {
cache::set("mute_${_SERVER['REMOTE_ADDR']}", $mute, $mute['time'] + $mutetime - time());
cache::set("mutetime_${_SERVER['REMOTE_ADDR']}", $mutetime, $mute['time'] + $mutetime - time());
}
// Not expired yet
error(sprintf($config['error']['youaremuted'], $mute['time'] + $mutetime - time()));
} else {
// Already expired
return;
}
}
}
function createHiddenInputs($extra_salt = Array()) {
global $config;
if(!empty($extra_salt)) {
// create a salted hash of the "extra salt"
$extra_salt = implode(':', $extra_salt);
} else {
$extra_salt = '';
}
$inputs = Array();
shuffle($config['spam']['hidden_input_names']);
$hidden_input_names_x = 0;
$input_count = rand($config['spam']['hidden_inputs_min'], $config['spam']['hidden_inputs_max']);
for($x=0;$x<$input_count;$x++) {
if(rand(0, 2) == 0 || $hidden_input_names_x < 0) {
// Use an obscure name
$name = strtolower(substr(base64_encode(sha1(rand(), true)), 0, rand(2, 20)));
} else {
// Use a pre-defined confusing name
$name = $config['spam']['hidden_input_names'][$hidden_input_names_x++];
if($hidden_input_names_x >= count($config['spam']['hidden_input_names']))
$hidden_input_names_x = -1;
}
if(rand(0, 2) == 0) {
// Value must be null
$inputs[$name] = '';
} elseif(rand(0, 4) == 0) {
// Numeric value
$inputs[$name] = rand(0, 100);
} else {
// Obscure value
$inputs[$name] = substr(base64_encode(sha1(rand(), true) . sha1(rand(), true)), 0, rand(2, 54));
}
}
$content = '';
foreach($inputs as $name => $value) {
$display_type = rand(0, 8);
switch($display_type) {
case 0:
$content .= '<input type="hidden" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" />';
break;
case 1:
$content .= '<input style="display:none" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" />';
break;
case 2:
$content .= '<input type="hidden" value="' . htmlspecialchars($value) . '" name="' . htmlspecialchars($name) . '" />';
break;
case 3:
$content .= '<input type="hidden" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" />';
break;
case 4:
$content .= '<span style="display:none"><input type="text" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" /></span>';
break;
case 5:
$content .= '<div style="display:none"><input type="text" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" /></div>';
break;
case 6:
if(!empty($value))
$content .= '<textarea style="display:none" name="' . htmlspecialchars($name) . '">' . htmlspecialchars($value) . '</textarea>';
else
$content .= '<input type="hidden" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" />';
break;
case 7:
if(!empty($value))
$content .= '<textarea name="' . htmlspecialchars($name) . '" style="display:none">' . htmlspecialchars($value) . '</textarea>';
else
$content .= '<input type="hidden" name="' . htmlspecialchars($name) . '" value="' . htmlspecialchars($value) . '" />';
break;
case 8:
$content .= '<div style="display:none"><textarea name="' . htmlspecialchars($name) . '" style="display:none">' . htmlspecialchars($value) . '</textarea></div>';
break;
}
}
// Create a hash to validate it after
// This is the tricky part.
// First, sort the keys in alphabetical order (A-Z)
ksort($inputs);
$hash = '';
// Iterate through each input
foreach($inputs as $name => $value) {
$hash .= $name . '=' . $value;
}
// Add a salt to the hash
$hash .= $config['cookies']['salt'];
// Use SHA1 for the hash
$hash = sha1($hash . $extra_salt);
// Append it to the HTML
$content .= '<input type="hidden" name="hash" value="' . $hash . '" />';
return $content;
}
function checkSpam($extra_salt = Array()) {
global $config;
if(!isset($_POST['hash']))
return true;
$hash = $_POST['hash'];
if(!empty($extra_salt)) {
// create a salted hash of the "extra salt"
$extra_salt = implode(':', $extra_salt);
} else {
$extra_salt = '';
}
// Reconsturct the $inputs array
$inputs = Array();
foreach($_POST as $name => $value) {
if(in_array($name, $config['spam']['valid_inputs']))
continue;
$inputs[$name] = $value;
}
// Sort the inputs in alphabetical order (A-Z)
ksort($inputs);
$_hash = '';
// Iterate through each input
foreach($inputs as $name => $value) {
$_hash .= $name . '=' . $value;
}
// Add a salt to the hash
$_hash .= $config['cookies']['salt'];
// Use SHA1 for the hash
$_hash = sha1($_hash . $extra_salt);
return $hash != $_hash;
}
function buildIndex() {
global $board, $config;
$pages = getPages();
$page = 1;
while($page <= $config['max_pages'] && $content = index($page)) {
$filename = $board['dir'] . ($page==1 ? $config['file_index'] : sprintf($config['file_page'], $page));
if(file_exists($filename)) $md5 = md5_file($filename);
$content['pages'] = $pages;
$content['pages'][$page-1]['selected'] = true;
$content['btn'] = getPageButtons($content['pages']);
file_write($filename, Element('index.html', $content));
if(isset($md5) && $md5 == md5_file($filename)) {
break;
}
$page++;
}
if($page < $config['max_pages']) {
for(;$page<=$config['max_pages'];$page++) {
$filename = $board['dir'] . ($page==1 ? $config['file_index'] : sprintf($config['file_page'], $page));
file_unlink($filename);
}
}
}
function buildJavascript() {
global $config;
$stylesheets = Array();
foreach($config['stylesheets'] as $name => $uri) {
$stylesheets[] = Array(
'name' => addslashes($name),
'uri' => addslashes((!empty($uri) ? $config['uri_stylesheets'] : '') . $uri));
}
$script = Element('main.js', Array(
'config' => $config,
'stylesheets' => $stylesheets
));
if($config['additional_javascript_compile']) {
foreach($config['additional_javascript'] as $file) {
$script .= file_get_contents($file);
}
}
if($config['minify_js']) {
require_once 'inc/contrib/minify/JSMin.php';
$script = JSMin::minify($script);
}
file_write($config['file_script'], $script);
}
function checkDNSBL() {
global $config;
if(isIPv6())
return; // No IPv6 support yet.
if(!isset($_SERVER['REMOTE_ADDR']))
return; // Fix your web server configuration
if(in_array($_SERVER['REMOTE_ADDR'], $config['dnsbl_exceptions']))
return;
$ip = ReverseIPOctets($_SERVER['REMOTE_ADDR']);
foreach($config['dnsbl'] as $blacklist) {
if(!is_array($blacklist) == 1)
$blacklist = Array($blacklist);
if(($lookup = str_replace('%', $ip, $blacklist[0])) == $blacklist[0])
$lookup = $ip . '.' . $blacklist[0];
if(!$ip = DNS($lookup))
continue; // not in list
$blacklist_name = isset($blacklist[2]) ? $blacklist[2] : $blacklist[0];
if(!isset($blacklist[1])) {
// If you're listed at all, you're blocked.
error(sprintf($config['error']['dnsbl'], $blacklist_name));
} elseif(is_array($blacklist[1])) {
foreach($blacklist[1] as $octet) {
if($ip == $octet || $ip == '127.0.0.' . $octet)
error(sprintf($config['error']['dnsbl'], $blacklist_name));
}
} elseif(is_callable($blacklist[1])) {
if($blacklist[1]($ip))
error(sprintf($config['error']['dnsbl'], $blacklist_name));
} else {
if($ip == $blacklist[1] || $ip == '127.0.0.' . $blacklist[1])
error(sprintf($config['error']['dnsbl'], $blacklist_name));
}
}
}
function isIPv6() {
return strstr($_SERVER['REMOTE_ADDR'], ':') !== false;
}
function ReverseIPOctets($ip) {
$ipoc = explode('.', $ip);
return $ipoc[3] . '.' . $ipoc[2] . '.' . $ipoc[1] . '.' . $ipoc[0];
}
function wordfilters(&$body) {
global $config;
foreach($config['wordfilters'] as $filter) {
if(isset($filter[2]) && $filter[2]) {
$body = preg_replace($filter[0], $filter[1], $body);
} else {
$body = str_ireplace($filter[0], $filter[1], $body);
}
}
}
function quote($body, $quote=true) {
global $config;
$body = str_replace('<br/>', "\n", $body);
$body = strip_tags($body);
$body = preg_replace("/(^|\n)/", '$1&gt;', $body);
$body .= "\n";
if($config['minify_html'])
$body = str_replace("\n", '&#010;', $body);
return $body;
}
function markup_url($matches) {
global $markup_urls;
$url = $matches[1];
$after = $matches[2];
$markup_urls[] = $url;
return '<a target="_blank" rel="nofollow" href="' . $url . '">' . $url . '</a>' . $after;
}
function unicodify($body) {
$body = str_replace('...', '&hellip;', $body);
$body = str_replace('&lt;--', '&larr;', $body);
$body = str_replace('--&gt;', '&rarr;', $body);
// En and em- dashes are rendered exactly the same in
// most monospace fonts (they look the same in code
// editors).
$body = str_replace('---', '&ndash;', $body); // em dash
$body = str_replace('--', '&mdash;', $body); // en dash
return $body;
}
function markup(&$body, $track_cites = false) {
global $board, $config, $markup_urls;
$body = utf8tohtml($body);
foreach($config['markup'] as $markup) {
if(is_string($markup[1])) {
$body = preg_replace($markup[0], $markup[1], $body);
} elseif(is_callable($markup[1])) {
$body = preg_replace_callback($markup[0], $markup[1], $body);
}
}
if($config['markup_urls']) {
$markup_urls = Array();
$body = preg_replace_callback(
'/((?:https?:\/\/|ftp:\/\/|irc:\/\/)[^\s<>()"]+?(?:\([^\s<>()"]*?\)[^\s<>()"]*?)*)((?:\s|<|>|"|\.||\]|!|\?|,|&#44;|&quot;)*(?:[\s<>()"]|$))/',
'markup_url',
$body,
-1,
$num_links);
if($num_links > $config['max_links'])
error($config['error']['toomanylinks']);
}
if($config['auto_unicode']) {
$body = unicodify($body);
foreach($markup_urls as &$url) {
$body = str_replace(unicodify($url), $url, $body);
}
}
// replace tabs with 8 spaces
$body = str_replace("\t", ' ', $body);
$tracked_cites = Array();
// Cites
if(isset($board) && preg_match_all('/(^|\s)&gt;&gt;(\d+?)([\s,.)?]|$)/', $body, $cites)) {
if(count($cites[0]) > $config['max_cites']) {
error($config['error']['toomanycites']);
}
for($index=0;$index<count($cites[0]);$index++) {
$cite = $cites[2][$index];
$query = prepare(sprintf("SELECT `thread`,`id` FROM `posts_%s` WHERE `id` = :id LIMIT 1", $board['uri']));
$query->bindValue(':id', $cite);
$query->execute() or error(db_error($query));
if($post = $query->fetch()) {
$replacement = '<a onclick="highlightReply(\''.$cite.'\');" href="' .
$config['root'] . $board['dir'] . $config['dir']['res'] . ($post['thread']?$post['thread']:$post['id']) . '.html#' . $cite . '">' .
'&gt;&gt;' . $cite .
'</a>';
$body = str_replace($cites[0][$index], $cites[1][$index] . $replacement . $cites[3][$index], $body);
if($track_cites && $config['track_cites'])
$tracked_cites[] = Array($board['uri'], $post['id']);
}
}
}
// Cross-board linking
if(preg_match_all('/(^|\s)&gt;&gt;&gt;\/(\w+?)\/(\d+)?([\s,.)?]|$)/', $body, $cites)) {
if(count($cites[0]) > $config['max_cites']) {
error($config['error']['toomanycross']);
}
for($index=0;$index<count($cites[0]);$index++) {
$_board = $cites[2][$index];
$cite = @$cites[3][$index];
// Temporarily store board information because it will be overwritten
$tmp_board = $board['uri'];
// Check if the board exists, and load settings
if(openBoard($_board)) {
if($cite) {
$query = prepare(sprintf("SELECT `thread`,`id` FROM `posts_%s` WHERE `id` = :id LIMIT 1", $board['uri']));
$query->bindValue(':id', $cite);
$query->execute() or error(db_error($query));
if($post = $query->fetch()) {
$replacement = '<a onclick="highlightReply(\''.$cite.'\');" href="' .
$config['root'] . $board['dir'] . $config['dir']['res'] . ($post['thread']?$post['thread']:$post['id']) . '.html#' . $cite . '">' .
'&gt;&gt;&gt;/' . $_board . '/' . $cite .
'</a>';
$body = str_replace($cites[0][$index], $cites[1][$index] . $replacement . $cites[4][$index], $body);
if($track_cites && $config['track_cites'])
$tracked_cites[] = Array($board['uri'], $post['id']);
}
} else {
$replacement = '<a href="' .
$config['root'] . $board['dir'] . $config['file_index'] . '">' .
'&gt;&gt;&gt;/' . $_board . '/' .
'</a>';
$body = str_replace($cites[0][$index], $cites[1][$index] . $replacement . $cites[4][$index], $body);
}
}
// Restore main board settings
openBoard($tmp_board);
}
}
$body = str_replace("\r", '', $body);
$body = preg_replace("/(^|\n)([\s]+)?(&gt;)([^\n]+)?($|\n)/m", '$1$2<span class="quote">$3$4</span>$5', $body);
if($config['strip_superfluous_returns'])
$body = preg_replace('/\s+$/', '', $body);
$body = preg_replace("/\n/", '<br/>', $body);
return $tracked_cites;
}
function utf8tohtml($utf8) {
return mb_encode_numericentity(htmlspecialchars($utf8, ENT_NOQUOTES, 'UTF-8'), Array(0x80, 0xffff, 0, 0xffff), 'UTF-8');
}
function buildThread($id, $return=false, $mod=false) {
global $board, $config;
$id = round($id);
if(event('build-thread', $id))
return;
if($config['cache']['enabled'] && !$mod) {
// Clear cache
cache::delete("thread_index_{$board['uri']}_{$id}");
cache::delete("thread_{$board['uri']}_{$id}");
}
$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE (`thread` IS NULL AND `id` = :id) OR `thread` = :id ORDER BY `thread`,`id`", $board['uri']));
$query->bindValue(':id', $id, PDO::PARAM_INT);
$query->execute() or error(db_error($query));
while($post = $query->fetch()) {
if(!isset($thread)) {
$thread = new Thread($post['id'], $post['subject'], $post['email'], $post['name'], $post['trip'], $post['capcode'], $post['body'], $post['time'], $post['thumb'], $post['thumbwidth'], $post['thumbheight'], $post['file'], $post['filewidth'], $post['fileheight'], $post['filesize'], $post['filename'], $post['ip'], $post['sticky'], $post['locked'], $post['sage'], $post['embed'], $mod ? '?/' : $config['root'], $mod);
} else {
$thread->add(new Post($post['id'], $thread->id, $post['subject'], $post['email'], $post['name'], $post['trip'], $post['capcode'], $post['body'], $post['time'], $post['thumb'], $post['thumbwidth'], $post['thumbheight'], $post['file'], $post['filewidth'], $post['fileheight'], $post['filesize'], $post['filename'], $post['ip'], $post['embed'], $mod ? '?/' : $config['root'], $mod));
}
}
// Check if any posts were found
if(!isset($thread)) error($config['error']['nonexistant']);
$body = Element('thread.html', Array(
'board'=>$board,
'body'=>$thread->build(),
'config' => $config,
'id' => $id,
'mod' => $mod,
'boardlist' => createBoardlist($mod),
'return' => ($mod ? '?' . $board['url'] . $config['file_index'] : $config['root'] . $board['uri'] . '/' . $config['file_index'])
));
if($return)
return $body;
else
file_write($board['dir'] . $config['dir']['res'] . sprintf($config['file_page'], $id), $body);
}
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (filetype($dir."/".$object) == "dir")
rrmdir($dir."/".$object);
else
file_unlink($dir."/".$object);
}
}
reset($objects);
rmdir($dir);
}
}
function poster_id($ip, $thread) {
global $config;
if($id = event('poster-id', $ip, $thread))
return $id;
// Confusing, hard to brute-force, but simple algorithm
return substr(sha1(sha1($ip . $config['secure_trip_salt'] . $thread) . $config['secure_trip_salt']), 0, $config['poster_id_length']);
}
function generate_tripcode($name) {
global $config;
if($trip = event('tripcode', $name))
return $trip;
if(!preg_match('/^([^#]+)?(##|#)(.+)$/', $name, $match))
return Array($name);
$name = $match[1];
$secure = $match[2] == '##';
$trip = $match[3];
// convert to SHIT_JIS encoding
$trip = mb_convert_encoding($trip, 'Shift_JIS', 'UTF-8');
// generate salt
$salt = substr($trip . 'H..', 1, 2);
$salt = preg_replace('/[^\.-z]/', '.', $salt);
$salt = strtr($salt, ':;<=>?@[\]^_`', 'ABCDEFGabcdef');
if($secure) {
if(isset($config['custom_tripcode']["##{$trip}"]))
$trip = $config['custom_tripcode']["##{$trip}"];
else
$trip = '!!' . substr(crypt($trip, $config['secure_trip_salt']), -10);
} else {
if(isset($config['custom_tripcode']["#{$trip}"]))
$trip = $config['custom_tripcode']["#{$trip}"];
else
$trip = '!' . substr(crypt($trip, $salt), -10);
}
return Array($name, $trip);
}
// Highest common factor
function hcf($a, $b){
$gcd = 1;
if ($a>$b) {
$a = $a+$b;
$b = $a-$b;
$a = $a-$b;
}
if ($b==(round($b/$a))*$a)
$gcd=$a;
else {
for($i=round($a/2);$i;$i--) {
if ($a == round($a/$i)*$i && $b == round($b/$i)*$i) {
$gcd = $i;
$i = false;
}
}
}
return $gcd;
}
function fraction($numerator, $denominator, $sep) {
$gcf = hcf($numerator, $denominator);
$numerator = $numerator / $gcf;
$denominator = $denominator / $gcf;
return "{$numerator}{$sep}{$denominator}";
}
function getPostByHash($hash) {
global $board;
$query = prepare(sprintf("SELECT `id`,`thread` FROM `posts_%s` WHERE `filehash` = :hash", $board['uri']));
$query->bindValue(':hash', $hash, PDO::PARAM_STR);
$query->execute() or error(db_error($query));
if($post = $query->fetch()) {
return $post;
}
return false;
}
function undoImage($post) {
if($post['has_file']) {
if(isset($post['thumb']))
file_unlink($post['file']);
if(isset($post['thumb']))
file_unlink($post['thumb']);
}
}
function rDNS($ip_addr) {
global $config;
if($config['cache']['enabled'] && ($host = cache::get('rdns_' . $ip_addr))) {
return $host;
}
if(!$config['dns_system']) {
$host = gethostbyaddr($ip_addr);
} else {
$resp = shell_exec('host -W 1 ' . $ip_addr);
if(preg_match('/domain name pointer ([^\s]+)$/', $resp, $m))
$host = $m[1];
else
$host = $ip_addr;
}
if($config['cache']['enabled'])
cache::set('rdns_' . $ip_addr, $host, 3600);
return $host;
}
function DNS($host) {
global $config;
if($config['cache']['enabled'] && ($ip_addr = cache::get('dns_' . $host))) {
return $ip_addr;
}
if(!$config['dns_system']) {
$ip_addr = gethostbyname($host);
if($ip_addr == $host)
$ip_addr = false;
} else {
$resp = shell_exec('host -W 1 ' . $host);
if(preg_match('/has address ([^\s]+)$/', $resp, $m))
$ip_addr = $m[1];
else
$ip_addr = false;
}
if($config['cache']['enabled'])
cache::set('dns_' . $host, $ip_addr, 3600);
return $ip_addr;
}
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