<?php
/**
 * TorrentPier – Bull-powered BitTorrent tracker engine
 *
 * @copyright Copyright (c) 2005-2025 TorrentPier (https://torrentpier.com)
 * @link      https://github.com/torrentpier/torrentpier for the canonical source repository
 * @license   https://github.com/torrentpier/torrentpier/blob/master/LICENSE MIT License
 */

if (!defined('BB_ROOT')) {
    die(basename(__FILE__));
}

/**
 * Define some basic configuration arrays
 */
$userdata = $theme = $images = $lang = $bf = $attach_config = [];
$gen_simple_header = false;
$user = null;

// Obtain and encode user IP
$client_ip = filter_var($_SERVER['REMOTE_ADDR'], FILTER_VALIDATE_IP) ? $_SERVER['REMOTE_ADDR'] : '127.0.0.1';
$user_ip = \TorrentPier\Helpers\IPHelper::ip2long($client_ip);
define('CLIENT_IP', $client_ip);
define('USER_IP', $user_ip);

/**
 * @param $contents
 * @return string
 */
function send_page($contents)
{
    return compress_output($contents);
}

/**
 * @param $contents
 * @return string
 */
function compress_output($contents)
{
    global $bb_cfg;

    if ($bb_cfg['gzip_compress'] && GZIP_OUTPUT_ALLOWED && !defined('NO_GZIP')) {
        if (UA_GZIP_SUPPORTED && strlen($contents) > 2000) {
            header('Content-Encoding: gzip');
            $contents = gzencode($contents, 1);
        }
    }

    return $contents;
}

/**
 * Start output buffering
 */
if (!defined('IN_AJAX')) {
    ob_start('send_page');
}

// Cookie params
$c = $bb_cfg['cookie_prefix'];
define('COOKIE_DATA', $c . 'data');
define('COOKIE_FORUM', $c . 'f');
define('COOKIE_MARK', $c . 'mark_read');
define('COOKIE_TOPIC', $c . 't');
define('COOKIE_PM', $c . 'pm');
unset($c);

define('COOKIE_SESSION', 0);
define('COOKIE_PERSIST', TIMENOW + 31536000);

define('COOKIE_MAX_TRACKS', 90);

/**
 * Set cookie
 *
 * @param string $name
 * @param mixed $val
 * @param int $lifetime
 * @param bool $httponly
 * @param bool $isRaw
 * @return void
 * @throws \Josantonius\Cookie\Exceptions\CookieException
 */
function bb_setcookie(string $name, mixed $val, int $lifetime = COOKIE_PERSIST, bool $httponly = false, bool $isRaw = false): void
{
    global $bb_cfg;

    $cookie = new \Josantonius\Cookie\Cookie(
        domain: $bb_cfg['cookie_domain'],
        expires: $lifetime,
        httpOnly: $httponly,
        path: $bb_cfg['script_path'],
        raw: $isRaw,
        sameSite: $bb_cfg['cookie_same_site'],
        secure: $bb_cfg['cookie_secure']
    );

    if (!empty($val)) {
        $cookie->set($name, $val);
    } else {
        $cookie->remove($name);
    }
}

// User related
define('USER_ACTIVATION_NONE', 0);
define('USER_ACTIVATION_SELF', 1);

// Group settings
define('GROUP_OPEN', 0);
define('GROUP_CLOSED', 1);
define('GROUP_HIDDEN', 2);

// Forum state
define('FORUM_UNLOCKED', 0);
define('FORUM_LOCKED', 1);

// Topic status
define('TOPIC_UNLOCKED', 0);
define('TOPIC_LOCKED', 1);
define('TOPIC_MOVED', 2);

define('TOPIC_WATCH_NOTIFIED', 1);
define('TOPIC_WATCH_UNNOTIFIED', 0);

// Topic types
define('POST_NORMAL', 0);
define('POST_STICKY', 1);
define('POST_ANNOUNCE', 2);

// Search types
define('SEARCH_TYPE_POST', 0);
define('SEARCH_TYPE_TRACKER', 1);

// Ajax error codes
define('E_AJAX_GENERAL_ERROR', 1000);
define('E_AJAX_NEED_LOGIN', 1001);

// Private messaging
define('PRIVMSGS_READ_MAIL', 0);
define('PRIVMSGS_NEW_MAIL', 1);
define('PRIVMSGS_SENT_MAIL', 2);
define('PRIVMSGS_SAVED_IN_MAIL', 3);
define('PRIVMSGS_SAVED_OUT_MAIL', 4);
define('PRIVMSGS_UNREAD_MAIL', 5);
define('HAVE_UNREAD_PM', 1);
define('HAVE_NEW_PM', 2);

// URL PARAMETERS (hardcoding allowed)
define('POST_CAT_URL', 'c');
define('POST_FORUM_URL', 'f');
define('POST_GROUPS_URL', 'g');
define('POST_POST_URL', 'p');
define('POST_TOPIC_URL', 't');
define('POST_USERS_URL', 'u');

// Download Modes
define('INLINE_LINK', 1);
define('PHYSICAL_LINK', 2);

// Categories
define('NONE_CAT', 0);
define('IMAGE_CAT', 1);

// Misc
define('ADMIN_MAX_ATTACHMENTS', 50);
define('THUMB_DIR', 'thumbs');
define('MODE_THUMBNAIL', 1);

// Quota Types
define('QUOTA_UPLOAD_LIMIT', 1);
define('QUOTA_PM_LIMIT', 2);

// Torrents
define('TOR_STATUS_NORMAL', 0);
define('TOR_STATUS_FROZEN', 1);

// Gender
define('MALE', 1);
define('FEMALE', 2);
define('NOGENDER', 0);

// Poll
# 1 - обычный опрос
define('POLL_FINISHED', 2);

// Group avatars
define('GROUP_AVATAR_MASK', 999000);

$dl_link_css = [
    DL_STATUS_RELEASER => 'genmed',
    DL_STATUS_WILL => 'dlWill',
    DL_STATUS_DOWN => 'leechmed',
    DL_STATUS_COMPLETE => 'seedmed',
    DL_STATUS_CANCEL => 'dlCancel',
];

$dl_status_css = [
    DL_STATUS_RELEASER => 'genmed',
    DL_STATUS_WILL => 'dlWill',
    DL_STATUS_DOWN => 'dlDown',
    DL_STATUS_COMPLETE => 'dlComplete',
    DL_STATUS_CANCEL => 'dlCancel',
];

// Table names
define('BUF_TOPIC_VIEW', 'buf_topic_view');
define('BUF_LAST_SEEDER', 'buf_last_seeder');
define('BB_ATTACH_CONFIG', 'bb_attachments_config');
define('BB_ATTACHMENTS_DESC', 'bb_attachments_desc');
define('BB_ATTACHMENTS', 'bb_attachments');
define('BB_AUTH_ACCESS_SNAP', 'bb_auth_access_snap');
define('BB_AUTH_ACCESS', 'bb_auth_access');
define('BB_BANLIST', 'bb_banlist');
define('BB_BT_DLSTATUS', 'bb_bt_dlstatus');
define('BB_BT_DLSTATUS_SNAP', 'bb_bt_dlstatus_snap');
define('BB_BT_LAST_TORSTAT', 'bb_bt_last_torstat');
define('BB_BT_LAST_USERSTAT', 'bb_bt_last_userstat');
define('BB_BT_TORHELP', 'bb_bt_torhelp');
define('BB_BT_TORSTAT', 'bb_bt_torstat');
define('BB_CATEGORIES', 'bb_categories');
define('BB_CONFIG', 'bb_config');
define('BB_CRON', 'bb_cron');
define('BB_DISALLOW', 'bb_disallow');
define('BB_EXTENSION_GROUPS', 'bb_extension_groups');
define('BB_EXTENSIONS', 'bb_extensions');
define('BB_FORUMS', 'bb_forums');
define('BB_GROUPS', 'bb_groups');
define('BB_LOG', 'bb_log');
define('BB_POLL_USERS', 'bb_poll_users');
define('BB_POLL_VOTES', 'bb_poll_votes');
define('BB_POSTS_SEARCH', 'bb_posts_search');
define('BB_POSTS', 'bb_posts');
define('BB_POSTS_TEXT', 'bb_posts_text');
define('BB_POSTS_HTML', 'bb_posts_html');
define('BB_PRIVMSGS', 'bb_privmsgs');
define('BB_PRIVMSGS_TEXT', 'bb_privmsgs_text');
define('BB_QUOTA_LIMITS', 'bb_quota_limits');
define('BB_QUOTA', 'bb_attach_quota');
define('BB_RANKS', 'bb_ranks');
define('BB_SEARCH_REBUILD', 'bb_search_rebuild');
define('BB_SEARCH', 'bb_search_results');
define('BB_SESSIONS', 'bb_sessions');
define('BB_SMILIES', 'bb_smilies');
define('BB_TOPIC_TPL', 'bb_topic_tpl');
define('BB_TOPICS', 'bb_topics');
define('BB_TOPICS_WATCH', 'bb_topics_watch');
define('BB_USER_GROUP', 'bb_user_group');
define('BB_WORDS', 'bb_words');
define('BB_THX', 'bb_thx');

define('TORRENT_EXT', 'torrent');
define('TORRENT_MIMETYPE', 'application/x-bittorrent');

define('TOPIC_DL_TYPE_NORMAL', 0);
define('TOPIC_DL_TYPE_DL', 1);

define('SHOW_PEERS_COUNT', 1);
define('SHOW_PEERS_NAMES', 2);
define('SHOW_PEERS_FULL', 3);

define('SEARCH_ID_LENGTH', 12);
define('ACTKEY_LENGTH', 32);
define('SID_LENGTH', 20);
define('LOGIN_KEY_LENGTH', 32);
define('USERNAME_MIN_LENGTH', 3);
define('USERNAME_MAX_LENGTH', 30);
define('USEREMAIL_MAX_LENGTH', 230);
define('PASSWORD_MIN_LENGTH', 8);
define('PASSWORD_MAX_LENGTH', 128);

define('PAGE_HEADER', INC_DIR . '/page_header.php');
define('PAGE_FOOTER', INC_DIR . '/page_footer.php');

define('CAT_URL', 'index.php?' . POST_CAT_URL . '=');
define('DL_URL', $bb_cfg['dl_url']);
define('FORUM_URL', 'viewforum.php?' . POST_FORUM_URL . '=');
define('GROUP_URL', 'group.php?' . POST_GROUPS_URL . '=');
define('LOGIN_URL', $bb_cfg['login_url']);
define('MODCP_URL', 'modcp.php?' . POST_FORUM_URL . '=');
define('PM_URL', $bb_cfg['pm_url']);
define('POST_URL', 'viewtopic.php?' . POST_POST_URL . '=');
define('POSTING_URL', $bb_cfg['posting_url']);
define('PROFILE_URL', 'profile.php?mode=viewprofile&amp;' . POST_USERS_URL . '=');
define('BONUS_URL', 'profile.php?mode=bonus');
define('TOPIC_URL', 'viewtopic.php?' . POST_TOPIC_URL . '=');
define('FILELIST_URL', 'filelist.php?' . POST_TOPIC_URL . '=');
define('PLAYBACK_M3U_URL', 'playback_m3u.php?' . POST_TOPIC_URL . '=');

define('USER_AGENT', strtolower($_SERVER['HTTP_USER_AGENT']));

define('HTML_SELECT_MAX_LENGTH', 60);
define('HTML_SF_SPACER', '&nbsp;|-&nbsp;');
define('HTML_WBR_LENGTH', 12);

define('HTML_CHECKED', ' checked ');
define('HTML_DISABLED', ' disabled ');
define('HTML_READONLY', ' readonly ');
define('HTML_SELECTED', ' selected ');

define('EMAIL_TYPE_HTML', 'text/html');
define('EMAIL_TYPE_TEXT', 'text/plain');

// $GPC
define('KEY_NAME', 0);   // position in $GPC['xxx']
define('DEF_VAL', 1);
define('GPC_TYPE', 2);

define('GET', 1);
define('POST', 2);
define('COOKIE', 3);
define('REQUEST', 4);
define('CHBOX', 5);
define('SELECT', 6);

// Functions
function send_no_cache_headers()
{
    header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
    header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
    header('Cache-Control: no-store, no-cache, must-revalidate');
    header('Cache-Control: post-check=0, pre-check=0', false);
    header('Pragma: no-cache');
}

/**
 * Converts "<br/>" / "<br>" tags to "\n" line breaks
 *
 * @param string $string
 * @return string
 */
function br2nl(string $string): string
{
    return preg_replace('#<br\s*/?>#i', "\n", $string);
}

/**
 * Adds commas between every group of thousands
 *
 * @param float|null $num
 * @param int $decimals
 * @param string|null $decimal_separator
 * @param string|null $thousands_separator
 * @return string
 */
function commify(?float $num, int $decimals = 0, ?string $decimal_separator = '.', ?string $thousands_separator = ','): string
{
    return number_format($num ?? 0.0, $decimals, $decimal_separator, $thousands_separator);
}

/**
 * Convert HTML entities to their corresponding characters
 *
 * @param string $string
 * @param int $flags
 * @param string $encoding
 * @return string
 */
function html_ent_decode(string $string, int $flags = ENT_QUOTES, string $encoding = DEFAULT_CHARSET): string
{
    return html_entity_decode($string, $flags, $encoding);
}

/**
 * Makes URL from path
 *
 * @param string $path
 * @return string
 */
function make_url(string $path = ''): string
{
    return FULL_URL . preg_replace('#^\/?(.*?)\/?$#', '\1', $path);
}

/**
 * Functions
 */
require_once INC_DIR . '/functions.php';

$bb_cfg = array_merge(bb_get_config(BB_CONFIG), $bb_cfg);

$log_action = new TorrentPier\Legacy\LogAction();
$wordCensor = new TorrentPier\Censor();
$html = new TorrentPier\Legacy\Common\Html();
$user = new TorrentPier\Legacy\Common\User();

$userdata =& $user->data;

/**
 * Cron
 */
if (
    empty($_POST) &&
    !defined('IN_ADMIN') && !defined('IN_AJAX') &&
    !is_file(CRON_RUNNING) &&
    (TorrentPier\Helpers\CronHelper::isEnabled() || defined('START_CRON'))
) {
    if (TIMENOW - $bb_cfg['cron_last_check'] > $bb_cfg['cron_check_interval']) {

        /** Update cron_last_check */
        bb_update_config(['cron_last_check' => TIMENOW + 10]);
        bb_log(date('H:i:s - ') . getmypid() . ' -x-- DB-LOCK try' . LOG_LF, CRON_LOG_DIR . '/cron_check');

        if (DB()->get_lock('cron', 1)) {
            bb_log(date('H:i:s - ') . getmypid() . ' --x- DB-LOCK OBTAINED !!!!!!!!!!!!!!!!!' . LOG_LF, CRON_LOG_DIR . '/cron_check');

            /** Run cron */
            if (TorrentPier\Helpers\CronHelper::hasFileLock()) {
                /** снятие файловой блокировки */
                register_shutdown_function(function () {
                    TorrentPier\Helpers\CronHelper::releaseLockFile();
                });

                /** разблокировка форума */
                register_shutdown_function(function () {
                    TorrentPier\Helpers\CronHelper::enableBoard();
                });

                TorrentPier\Helpers\CronHelper::trackRunning('start');

                require(CRON_DIR . 'cron_check.php');

                TorrentPier\Helpers\CronHelper::trackRunning('end');
            }

            if (defined('IN_CRON')) {
                bb_log(date('H:i:s - ') . getmypid() . ' --x- ALL jobs FINISHED *************************************************' . LOG_LF, CRON_LOG_DIR . '/cron_check');
            }

            DB()->release_lock('cron');
        }
    }
}

/**
 * Exit if board is disabled via trigger
 */
if (($bb_cfg['board_disable'] || is_file(BB_DISABLED)) && !defined('IN_ADMIN') && !defined('IN_AJAX') && !defined('IN_LOGIN')) {
    if ($bb_cfg['board_disable']) {
        // admin lock
        send_no_cache_headers();
        bb_die('BOARD_DISABLE', 503);
    } elseif (is_file(BB_DISABLED)) {
        // trigger lock
        TorrentPier\Helpers\CronHelper::releaseDeadlock();
        send_no_cache_headers();
        bb_die('BOARD_DISABLE_CRON', (\TorrentPier\Helpers\CronHelper::isEnabled() ? 503 : null));
    }
}