Source code of Leftypol imageboard
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2914 lines
85 KiB

12 years ago
<?php
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/*
* Copyright (c) 2010-2014 Tinyboard Development Group
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*/
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if (realpath($_SERVER['SCRIPT_FILENAME']) == str_replace('\\', '/', __FILE__)) {
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// You cannot request this file directly.
exit;
}
define('TINYBOARD', null);
$microtime_start = microtime(true);
require_once 'inc/error.php';
require_once 'inc/cache.php';
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require_once 'inc/display.php';
require_once 'inc/template.php';
require_once 'inc/database.php';
require_once 'inc/events.php';
require_once 'inc/api.php';
require_once 'inc/mod/auth.php';
require_once 'inc/lock.php';
require_once 'inc/queue.php';
require_once 'inc/polyfill.php';
@include_once 'inc/lib/parsedown/Parsedown.php'; // fail silently, this isn't a critical piece of code
require_once 'inc/anti-bot.php'; // DELETE ME THIS IS FOR print_err function only!
if (!extension_loaded('gettext')) {
require_once 'inc/lib/gettext/gettext.inc';
}
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// the user is not currently logged in as a moderator
$mod = false;
mb_internal_encoding('UTF-8');
loadConfig();
function init_locale($locale) {
if (extension_loaded('gettext')) {
if (setlocale(LC_ALL, $locale) === false) {
//$error('The specified locale (' . $locale . ') does not exist on your platform!');
// Fall back to C.UTF-8 instead of normal C, so we support unicode instead of just ASCII
setlocale(LC_ALL, "C.UTF-8");
setlocale(LC_CTYPE, "C.UTF-8");
}
bindtextdomain('tinyboard', './inc/locale');
bind_textdomain_codeset('tinyboard', 'UTF-8');
textdomain('tinyboard');
} else {
if (_setlocale(LC_ALL, $locale) === false) {
error('The specified locale (' . $locale . ') does not exist on your platform!');
// Fall back to C.UTF-8 instead of normal C, so we support unicode instead of just ASCII
_setlocale(LC_ALL, "C.UTF-8");
_setlocale(LC_CTYPE, "C.UTF-8");
}
_bindtextdomain('tinyboard', './inc/locale');
_bind_textdomain_codeset('tinyboard', 'UTF-8');
_textdomain('tinyboard');
}
}
$current_locale = 'en';
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function loadConfig() {
global $board, $config, $__ip, $debug, $__version, $microtime_start, $current_locale, $events;
$boardsuffix = isset($board['uri']) ? $board['uri'] : '';
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if (!isset($_SERVER['REMOTE_ADDR']))
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$_SERVER['REMOTE_ADDR'] = '0.0.0.0';
if (file_exists('tmp/cache/cache_config.php')) {
require_once('tmp/cache/cache_config.php');
}
if (isset($config['cache_config']) &&
$config['cache_config'] &&
$config = Cache::get('config_' . $boardsuffix ) ) {
$events = Cache::get('events_' . $boardsuffix );
define_groups();
if (file_exists('inc/instance-functions.php')) {
require_once('inc/instance-functions.php');
}
if ($config['locale'] != $current_locale) {
$current_locale = $config['locale'];
init_locale($config['locale']);
}
}
else {
$config = array();
reset_events();
$arrays = array(
'db',
'api',
'cache',
'lock',
'queue',
'cookies',
'error',
'dir',
'mod',
'spam',
'filters',
'wordfilters',
'custom_capcode',
'custom_tripcode',
'dnsbl',
'dnsbl_exceptions',
'remote',
'allowed_ext',
'allowed_ext_files',
'file_icons',
'footer',
'stylesheets',
'code_stylesheets',
'additional_javascript',
'markup',
'custom_pages',
'dashboard_links'
);
foreach ($arrays as $key) {
$config[$key] = array();
}
if (!file_exists('inc/instance-config.php'))
error('Tinyboard is not configured! Create inc/instance-config.php.');
// Initialize locale as early as possible
// Those calls are expensive. Unfortunately, our cache system is not initialized at this point.
// So, we may store the locale in a tmp/ filesystem.
if (file_exists($fn = 'tmp/cache/locale_' . $boardsuffix ) ) {
$config['locale'] = @file_get_contents($fn);
}
else {
$config['locale'] = 'en';
$configstr = file_get_contents('inc/instance-config.php');
if (isset($board['dir']) && file_exists($board['dir'] . '/config.php')) {
$configstr .= file_get_contents($board['dir'] . '/config.php');
}
$matches = array();
preg_match_all('/[^\/#*]\$config\s*\[\s*[\'"]locale[\'"]\s*\]\s*=\s*([\'"])(.*?)\1/', $configstr, $matches);
if ($matches && isset ($matches[2]) && $matches[2]) {
$matches = $matches[2];
$config['locale'] = $matches[count($matches)-1];
}
@file_put_contents($fn, $config['locale']);
}
if ($config['locale'] != $current_locale) {
$current_locale = $config['locale'];
init_locale($config['locale']);
}
require 'inc/config.php';
require 'inc/instance-config.php';
if (isset($board['dir']) && file_exists($board['dir'] . '/config.php')) {
require $board['dir'] . '/config.php';
}
if ($config['locale'] != $current_locale) {
$current_locale = $config['locale'];
init_locale($config['locale']);
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}
if (!isset($config['global_message']))
$config['global_message'] = false;
if (!isset($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('@^https?://@', $config['root']) ? '' :
'https?:\/\/' . $_SERVER['HTTP_HOST']) .
preg_quote($config['root'], '/') .
'(' .
str_replace('%s', $config['board_regex'], preg_quote($config['board_path'], '/')) .
'(' .
preg_quote($config['file_index'], '/') . '|' .
str_replace('%d', '\d+', preg_quote($config['file_page'])) .
')?' .
'|' .
str_replace('%s', $config['board_regex'], preg_quote($config['board_path'], '/')) .
preg_quote($config['dir']['res'], '/') .
'(' .
str_replace('%d', '\d+', preg_quote($config['file_page'], '/')) . '|' .
str_replace('%d', '\d+', preg_quote($config['file_page50'], '/')) . '|' .
str_replace(array('%d', '%s'), array('\d+', '[a-z0-9-]+'), preg_quote($config['file_page_slug'], '/')) . '|' .
str_replace(array('%d', '%s'), array('\d+', '[a-z0-9-]+'), preg_quote($config['file_page50_slug'], '/')) .
')' .
'|' .
preg_quote($config['file_mod'], '/') . '\?\/.+' .
')([#?](.+)?)?$/ui';
} 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_blank']))
$config['image_blank'] = $config['dir']['static'] . 'blank.gif';
if (!isset($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['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'] = $config['root'];
if (!isset($config['uri_flags']))
$config['uri_flags'] = $config['root'] . 'static/flags/%s.png';
if (!isset($config['user_flag']))
$config['user_flag'] = false;
if (!isset($config['user_flags']))
$config['user_flags'] = array();
if (!isset($__version))
$__version = file_exists('.installed') ? trim(file_get_contents('.installed')) : false;
$config['version'] = $__version;
if ($config['allow_roll'])
event_handler('post', 'diceRoller');
if (in_array('webm', $config['allowed_ext_files']) ||
in_array('mp4', $config['allowed_ext_files']))
event_handler('post', 'postHandler');
}
// Effectful config processing below:
date_default_timezone_set($config['timezone']);
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if ($config['root_file']) {
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chdir($config['root_file']);
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}
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// 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'] = $m[2];
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if ($config['verbose_errors']) {
set_error_handler('error_handler');
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error_reporting(E_ALL);
ini_set('display_errors', true);
ini_set('html_errors', false);
} else {
ini_set('display_errors', false);
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}
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if ($config['syslog'])
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openlog('tinyboard', LOG_ODELAY, LOG_SYSLOG); // open a connection to sysem logger
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if ($config['cache']['enabled'])
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require_once 'inc/cache.php';
if (in_array('webm', $config['allowed_ext_files']) ||
in_array('mp4', $config['allowed_ext_files']))
require_once 'inc/lib/webm/posthandler.php';
event('load-config');
if ($config['cache_config'] && !isset ($config['cache_config_loaded'])) {
file_put_contents('tmp/cache/cache_config.php', '<?php '.
'$config = array();'.
'$config[\'cache\'] = '.var_export($config['cache'], true).';'.
'$config[\'cache_config\'] = true;'.
'$config[\'debug\'] = '.var_export($config['debug'], true).';'.
'require_once(\'inc/cache.php\');'
);
$config['cache_config_loaded'] = true;
Cache::set('config_'.$boardsuffix, $config);
Cache::set('events_'.$boardsuffix, $events);
}
if (is_array($config['anonymous'])) {
$config['anonymous'] = $config['anonymous'][array_rand($config['anonymous'])];
}
else if (is_callable($config['anonymous'])){
$config['anonymous'] = $config['anonymous']($boardsuffix);
}
if ($config['debug']) {
if (!isset($debug)) {
$debug = array(
'sql' => array(),
'exec' => array(),
'purge' => array(),
'cached' => array(),
'write' => array(),
'time' => array(
'db_queries' => 0,
'exec' => 0,
),
'start' => $microtime_start,
'start_debug' => microtime(true)
);
$debug['start'] = $microtime_start;
}
}
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}
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function _syslog($priority, $message) {
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if (isset($_SERVER['REMOTE_ADDR'], $_SERVER['REQUEST_METHOD'], $_SERVER['REQUEST_URI'])) {
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// CGI
syslog($priority, $message . ' - client: ' . $_SERVER['REMOTE_ADDR'] . ', request: "' . $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . '"');
} else {
syslog($priority, $message);
}
}
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function define_groups() {
global $config;
foreach ($config['mod']['groups'] as $group_value => $group_name) {
$group_name = strtoupper($group_name);
if(!defined($group_name)) {
define($group_name, $group_value, true);
}
}
ksort($config['mod']['groups']);
}
function create_antibot($board, $thread = null) {
require_once dirname(__FILE__) . '/anti-bot.php';
print_err("Create Antibot.");
return _create_antibot($board, $thread);
}
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function rebuildThemes($action, $boardname = false) {
global $config, $board, $current_locale;
print_err("rebuildThemes");
// Save the global variables
$_config = $config;
$_board = $board;
print_err("list themes");
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// List themes
if ($themes = Cache::get("themes")) {
// OK, we already have themes loaded
print_err("themes loaded from cache");
}
else {
print_err("querying db for themes");
$query = query("SELECT `theme` FROM ``theme_settings`` WHERE `name` IS NULL AND `value` IS NULL") or error(db_error());
$themes = array();
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while ($theme = $query->fetch(PDO::FETCH_ASSOC)) {
print_err("theme found in db");
$themes[] = $theme;
}
Cache::set("themes", $themes);
}
foreach ($themes as $theme) {
// Restore them
$config = $_config;
$board = $_board;
// Reload the locale
if ($config['locale'] != $current_locale) {
$current_locale = $config['locale'];
init_locale($config['locale']);
}
if (PHP_SAPI === 'cli') {
echo "Rebuilding theme ".$theme['theme']."... ";
}
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rebuildTheme($theme['theme'], $action, $boardname);
if (PHP_SAPI === 'cli') {
echo "done\n";
}
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}
// Restore them again
$config = $_config;
$board = $_board;
// Reload the locale
if ($config['locale'] != $current_locale) {
$current_locale = $config['locale'];
init_locale($config['locale']);
}
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}
function loadThemeConfig($_theme) {
global $config;
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if (!file_exists($config['dir']['themes'] . '/' . $_theme . '/info.php'))
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return false;
// Load theme information into $theme
include $config['dir']['themes'] . '/' . $_theme . '/info.php';
return $theme;
}
function rebuildTheme($theme, $action, $board = false) {
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global $config, $_theme;
$_theme = $theme;
print_err("rebuildTheme with \$theme as " . $theme);
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$theme = loadThemeConfig($_theme);
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if (file_exists($config['dir']['themes'] . '/' . $_theme . '/theme.php')) {
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require_once $config['dir']['themes'] . '/' . $_theme . '/theme.php';
$theme['build_function']($action, themeSettings($_theme), $board);
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}
}
function themeSettings($theme) {
if ($settings = Cache::get("theme_settings_".$theme)) {
return $settings;
}
$query = prepare("SELECT `name`, `value` FROM ``theme_settings`` WHERE `theme` = :theme AND `name` IS NOT NULL");
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$query->bindValue(':theme', $theme);
$query->execute() or error(db_error($query));
$settings = array();
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while ($s = $query->fetch(PDO::FETCH_ASSOC)) {
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$settings[$s['name']] = $s['value'];
}
Cache::set("theme_settings_".$theme, $settings);
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return $settings;
}
function sprintf3($str, $vars, $delim = '%') {
$replaces = array();
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foreach ($vars as $k => $v) {
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$replaces[$delim . $k . $delim] = $v;
}
return str_replace(array_keys($replaces),
array_values($replaces), $str);
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}
function mb_substr_replace($string, $replacement, $start, $length) {
return mb_substr($string, 0, $start) . $replacement . mb_substr($string, $start + $length);
}
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function setupBoard($array) {
global $board, $config;
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$board = array(
'uri' => $array['uri'],
'title' => $array['title'],
'subtitle' => $array['subtitle'],
#'indexed' => $array['indexed'],
);
// older versions
$board['name'] = &$board['title'];
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$board['dir'] = sprintf($config['board_path'], $board['uri']);
$board['url'] = sprintf($config['board_abbreviation'], $board['uri']);
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loadConfig();
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if (!file_exists($board['dir']))
@mkdir($board['dir'], 0777) or error("Couldn't create " . $board['dir'] . ". Check permissions.", true);
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if (!file_exists($board['dir'] . $config['dir']['img']))
@mkdir($board['dir'] . $config['dir']['img'], 0777)
or error("Couldn't create " . $board['dir'] . $config['dir']['img'] . ". Check permissions.", true);
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if (!file_exists($board['dir'] . $config['dir']['thumb']))
@mkdir($board['dir'] . $config['dir']['thumb'], 0777)
or error("Couldn't create " . $board['dir'] . $config['dir']['img'] . ". Check permissions.", true);
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if (!file_exists($board['dir'] . $config['dir']['res']))
@mkdir($board['dir'] . $config['dir']['res'], 0777)
or error("Couldn't create " . $board['dir'] . $config['dir']['img'] . ". Check permissions.", true);
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}
function openBoard($uri) {
global $config, $build_pages, $board;
if ($config['try_smarter'])
$build_pages = array();
// And what if we don't really need to change a board we have opened?
if (isset ($board) && isset ($board['uri']) && $board['uri'] == $uri) {
return true;
}
$b = getBoardInfo($uri);
if ($b) {
setupBoard($b);
if (function_exists('after_open_board')) {
after_open_board();
}
return true;
}
return false;
}
function getBoardInfo($uri) {
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global $config;
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if ($config['cache']['enabled'] && ($board = cache::get('board_' . $uri))) {
return $board;
}
$query = prepare("SELECT * FROM ``boards`` WHERE `uri` = :uri LIMIT 1");
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$query->bindValue(':uri', $uri);
$query->execute() or error(db_error($query));
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if ($board = $query->fetch(PDO::FETCH_ASSOC)) {
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if ($config['cache']['enabled'])
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cache::set('board_' . $uri, $board);
return $board;
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}
return false;
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}
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function boardTitle($uri) {
$board = getBoardInfo($uri);
if ($board)
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return $board['title'];
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return false;
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}
function purge($uri) {
global $config, $debug;
// Fix for Unicode
$uri = rawurlencode($uri);
$noescape = "/!~*()+:";
$noescape = preg_split('//', $noescape);
$noescape_url = array_map("rawurlencode", $noescape);
$uri = str_replace($noescape_url, $noescape, $uri);
if (preg_match($config['referer_match'], $config['root']) && isset($_SERVER['REQUEST_URI'])) {
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$uri = (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/') . $uri;
} else {
$uri = $config['root'] . $uri;
}
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if ($config['debug']) {
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$debug['purge'][] = $uri;
}
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foreach ($config['purge'] as &$purge) {
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$host = &$purge[0];
$port = &$purge[1];
$http_host = isset($purge[2]) ? $purge[2] : (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : 'localhost');
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$request = "PURGE {$uri} HTTP/1.1\r\nHost: {$http_host}\r\nUser-Agent: Tinyboard\r\nConnection: Close\r\n\r\n";
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if ($fp = fsockopen($host, $port, $errno, $errstr, $config['purge_timeout'])) {
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fwrite($fp, $request);
fclose($fp);
} else {
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// Cannot connect?
error('Could not PURGE for ' . $host);
}
}
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}
function file_write($path, $data, $simple = false, $skip_purge = false) {
global $config, $debug;
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if (preg_match('/^remote:\/\/(.+)\:(.+)$/', $path, $m)) {
if (isset($config['remote'][$m[1]])) {
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require_once 'inc/remote.php';
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$remote = new Remote($config['remote'][$m[1]]);
$remote->write($data, $m[2]);
return;
} else {
error('Invalid remote server: ' . $m[1]);
}
}
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if (!$fp = fopen($path, $simple ? 'w' : 'c'))
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error('Unable to open file for writing: ' . $path);
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// File locking
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if (!$simple && !flock($fp, LOCK_EX)) {
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error('Unable to lock file: ' . $path);
}
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// Truncate file
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if (!$simple && !ftruncate($fp, 0))
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error('Unable to truncate file: ' . $path);
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// Write data
if (($bytes = fwrite($fp, $data)) === false)
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error('Unable to write to file: ' . $path);
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// Unlock
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if (!$simple)
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flock($fp, LOCK_UN);
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// Close
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if (!fclose($fp))
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error('Unable to close file: ' . $path);
/**
* Create gzipped file.
*
* When writing into a file foo.bar and the size is larger or equal to 1
* KiB, this also produces the gzipped version foo.bar.gz
*
* This is useful with nginx with gzip_static on.
*/
if ($config['gzip_static']) {
$gzpath = "$path.gz";
if ($bytes & ~0x3ff) { // if ($bytes >= 1024)
if (file_put_contents($gzpath, gzencode($data), $simple ? 0 : LOCK_EX) === false)
error("Unable to write to file: $gzpath");
//if (!touch($gzpath, filemtime($path), fileatime($path)))
// error("Unable to touch file: $gzpath");
}
else {
@unlink($gzpath);
}
}
if (!$skip_purge && isset($config['purge'])) {
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// Purge cache
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if (basename($path) == $config['file_index']) {
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// Index file (/index.html); purge "/" as well
$uri = dirname($path);
// root
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if ($uri == '.')
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$uri = '';
else
$uri .= '/';
purge($uri);
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}
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purge($path);
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}
if ($config['debug']) {
$debug['write'][] = $path . ': ' . $bytes . ' bytes';
}
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event('write', $path);
}
function file_unlink($path) {
global $config, $debug;
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if ($config['debug']) {
if (!isset($debug['unlink']))
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$debug['unlink'] = array();
$debug['unlink'][] = $path;
}
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$ret = @unlink($path);
if ($config['gzip_static']) {
$gzpath = "$path.gz";
@unlink($gzpath);
}
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if (isset($config['purge']) && $path[0] != '/' && isset($_SERVER['HTTP_HOST'])) {
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// Purge cache
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if (basename($path) == $config['file_index']) {
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// Index file (/index.html); purge "/" as well
$uri = dirname($path);
// root
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if ($uri == '.')
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$uri = '';
else
$uri .= '/';
purge($uri);
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}
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purge($path);
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}
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event('unlink', $path);
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return $ret;