mirror of
https://github.com/torrentpier/torrentpier
synced 2025-07-07 21:41:40 -07:00
591 lines
14 KiB
PHP
591 lines
14 KiB
PHP
<?php
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/**
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* TorrentPier – Bull-powered BitTorrent tracker engine
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*
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* @copyright Copyright (c) 2005-2023 TorrentPier (https://torrentpier.com)
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* @link https://github.com/torrentpier/torrentpier for the canonical source repository
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* @license https://github.com/torrentpier/torrentpier/blob/master/LICENSE MIT License
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*/
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/**
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* All Attachment Functions needed everywhere
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*/
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/**
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* A simple dectobase64 function
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*/
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function base64_pack($number)
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{
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$chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+-';
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$base = strlen($chars);
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if ($number > 4096) {
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return;
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}
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if ($number < $base) {
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return $chars[$number];
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}
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$hexval = '';
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while ($number > 0) {
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$remainder = $number % $base;
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if ($remainder < $base) {
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$hexval = $chars[$remainder] . $hexval;
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}
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$number = floor($number / $base);
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}
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return $hexval;
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}
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/**
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* base64todec function
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*/
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function base64_unpack($string)
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{
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$chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+-';
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$base = strlen($chars);
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$length = strlen($string);
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$number = 0;
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for ($i = 1; $i <= $length; $i++) {
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$pos = $length - $i;
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$operand = strpos($chars, $string[$pos]);
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$exponent = $base ** ($i - 1);
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$decValue = $operand * $exponent;
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$number += $decValue;
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}
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return $number;
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}
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/**
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* Per Forum based Extension Group Permissions (Encode Number) -> Theoretically up to 158 Forums saveable. :)
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* We are using a base of 64, but splitting it to one-char and two-char numbers. :)
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*/
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function auth_pack($auth_array)
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{
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$one_char_encoding = '#';
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$two_char_encoding = '.';
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$one_char = $two_char = false;
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$auth_cache = '';
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foreach ($auth_array as $i => $iValue) {
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$val = base64_pack((int)$auth_array[$i]);
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if (strlen($val) == 1 && !$one_char) {
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$auth_cache .= $one_char_encoding;
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$one_char = true;
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} elseif (strlen($val) == 2 && !$two_char) {
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$auth_cache .= $two_char_encoding;
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$two_char = true;
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}
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$auth_cache .= $val;
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}
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return $auth_cache;
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}
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/**
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* Reverse the auth_pack process
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*/
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function auth_unpack($auth_cache)
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{
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$one_char_encoding = '#';
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$two_char_encoding = '.';
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$auth = [];
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$auth_len = 1;
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for ($pos = 0, $posMax = strlen($auth_cache); $pos < $posMax; $pos += $auth_len) {
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$forum_auth = $auth_cache[$pos];
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if ($forum_auth == $one_char_encoding) {
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$auth_len = 1;
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continue;
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}
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if ($forum_auth == $two_char_encoding) {
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$auth_len = 2;
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$pos--;
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continue;
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}
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$forum_auth = substr($auth_cache, $pos, $auth_len);
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$forum_id = base64_unpack($forum_auth);
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$auth[] = (int)$forum_id;
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}
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return $auth;
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}
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/**
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* Used for determining if Forum ID is authed, please use this Function on all Posting Screens
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*/
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function is_forum_authed($auth_cache, $check_forum_id)
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{
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$one_char_encoding = '#';
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$two_char_encoding = '.';
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if (trim($auth_cache) == '') {
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return true;
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}
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$auth = [];
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$auth_len = 1;
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for ($pos = 0, $posMax = strlen($auth_cache); $pos < $posMax; $pos += $auth_len) {
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$forum_auth = $auth_cache[$pos];
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if ($forum_auth == $one_char_encoding) {
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$auth_len = 1;
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continue;
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}
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if ($forum_auth == $two_char_encoding) {
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$auth_len = 2;
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$pos--;
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continue;
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}
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$forum_auth = substr($auth_cache, $pos, $auth_len);
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$forum_id = (int)base64_unpack($forum_auth);
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if ($forum_id == $check_forum_id) {
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return true;
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}
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}
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return false;
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}
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/**
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* Deletes an Attachment
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*/
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function unlink_attach($filename, $mode = false)
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{
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global $upload_dir, $attach_config;
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$filename = basename($filename);
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if ($mode == MODE_THUMBNAIL) {
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$filename = $upload_dir . '/' . THUMB_DIR . '/t_' . $filename;
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} else {
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$filename = $upload_dir . '/' . $filename;
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}
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return @unlink($filename);
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}
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/**
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* Check if Attachment exist
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*/
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function attachment_exists($filename)
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{
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global $upload_dir, $attach_config;
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$filename = basename($filename);
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if (!@file_exists(@amod_realpath($upload_dir . '/' . $filename))) {
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return false;
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}
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return true;
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}
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/**
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* Check if Thumbnail exist
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*/
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function thumbnail_exists($filename)
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{
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global $upload_dir, $attach_config;
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$filename = basename($filename);
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if (!@file_exists(@amod_realpath($upload_dir . '/' . THUMB_DIR . '/t_' . $filename))) {
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return false;
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}
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return true;
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}
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/**
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* Physical Filename stored already ?
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*/
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function physical_filename_already_stored($filename)
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{
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if ($filename == '') {
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return false;
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}
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$filename = basename($filename);
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$sql = 'SELECT attach_id
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FROM ' . BB_ATTACHMENTS_DESC . "
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WHERE physical_filename = '" . attach_mod_sql_escape($filename) . "'
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LIMIT 1";
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if (!($result = DB()->sql_query($sql))) {
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bb_die('Could not get attachment information for filename: ' . htmlspecialchars($filename));
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}
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$num_rows = DB()->num_rows($result);
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DB()->sql_freeresult($result);
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return $num_rows != 0;
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}
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/**
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* get all attachments from a post (could be an post array too)
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*/
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function get_attachments_from_post($post_id_array)
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{
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global $attach_config;
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$attachments = [];
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if (!is_array($post_id_array)) {
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if (empty($post_id_array)) {
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return $attachments;
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}
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$post_id = (int)$post_id_array;
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$post_id_array = [];
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$post_id_array[] = $post_id;
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}
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$post_id_array = implode(', ', array_map('\intval', $post_id_array));
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if ($post_id_array == '') {
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return $attachments;
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}
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$display_order = ((int)$attach_config['display_order'] == 0) ? 'DESC' : 'ASC';
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$sql = 'SELECT a.post_id, d.*
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FROM ' . BB_ATTACHMENTS . ' a, ' . BB_ATTACHMENTS_DESC . " d
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WHERE a.post_id IN ($post_id_array)
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AND a.attach_id = d.attach_id
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ORDER BY d.filetime $display_order";
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if (!($result = DB()->sql_query($sql))) {
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bb_die('Could not get attachment informations for post number ' . $post_id_array);
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}
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$num_rows = DB()->num_rows($result);
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$attachments = DB()->sql_fetchrowset($result);
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DB()->sql_freeresult($result);
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if ($num_rows == 0) {
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return [];
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}
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return $attachments;
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}
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/**
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* Count Filesize of Attachments in Database based on the attachment id
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*/
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function get_total_attach_filesize($attach_ids)
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{
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if (!is_array($attach_ids) || !count($attach_ids)) {
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return 0;
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}
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$attach_ids = implode(', ', array_map('\intval', $attach_ids));
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if (!$attach_ids) {
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return 0;
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}
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$sql = 'SELECT filesize FROM ' . BB_ATTACHMENTS_DESC . " WHERE attach_id IN ($attach_ids)";
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if (!($result = DB()->sql_query($sql))) {
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bb_die('Could not query total filesize');
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}
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$total_filesize = 0;
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while ($row = DB()->sql_fetchrow($result)) {
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$total_filesize += (int)$row['filesize'];
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}
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DB()->sql_freeresult($result);
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return $total_filesize;
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}
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/**
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* Get allowed Extensions and their respective Values
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*/
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function get_extension_informations()
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{
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return $GLOBALS['datastore']->get('attach_extensions');
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}
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//
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// Sync Topic
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//
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function attachment_sync_topic($topics)
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{
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if (is_array($topics)) {
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$topics = implode(',', $topics);
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}
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$posts_without_attach = $topics_without_attach = [];
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// Check orphan post_attachment markers
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$sql = "SELECT p.post_id
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FROM " . BB_POSTS . " p
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LEFT JOIN " . BB_ATTACHMENTS . " a USING(post_id)
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WHERE p.topic_id IN($topics)
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AND p.post_attachment = 1
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AND a.post_id IS NULL";
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if ($rowset = DB()->fetch_rowset($sql)) {
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foreach ($rowset as $row) {
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$posts_without_attach[] = $row['post_id'];
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}
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if ($posts_sql = implode(',', $posts_without_attach)) {
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DB()->query("UPDATE " . BB_POSTS . " SET post_attachment = 0 WHERE post_id IN($posts_sql)");
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}
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}
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// Update missing topic_attachment markers
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DB()->query("
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UPDATE " . BB_TOPICS . " t, " . BB_POSTS . " p SET
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t.topic_attachment = 1
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WHERE p.topic_id IN($topics)
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AND p.post_attachment = 1
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AND p.topic_id = t.topic_id
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");
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// Fix orphan topic_attachment markers
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$sql = "SELECT t.topic_id
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FROM " . BB_POSTS . " p, " . BB_TOPICS . " t
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WHERE t.topic_id = p.topic_id
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AND t.topic_id IN($topics)
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AND t.topic_attachment = 1
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GROUP BY p.topic_id
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HAVING SUM(p.post_attachment) = 0";
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if ($rowset = DB()->fetch_rowset($sql)) {
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foreach ($rowset as $row) {
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$topics_without_attach[] = $row['topic_id'];
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}
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if ($topics_sql = implode(',', $topics_without_attach)) {
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DB()->query("UPDATE " . BB_TOPICS . " SET topic_attachment = 0 WHERE topic_id IN($topics_sql)");
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}
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}
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}
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/**
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* Get Extension
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*/
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function get_extension($filename)
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{
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if (false === strpos($filename, '.')) {
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return '';
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}
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$extension = strrchr(strtolower($filename), '.');
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$extension[0] = ' ';
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$extension = strtolower(trim($extension));
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if (is_array($extension)) {
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return '';
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}
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return $extension;
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}
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/**
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* Delete Extension
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*/
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function delete_extension($filename)
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{
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return substr($filename, 0, strripos(trim($filename), '.'));
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}
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/**
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* Check if a user is within Group
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*/
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function user_in_group($user_id, $group_id)
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{
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$user_id = (int)$user_id;
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$group_id = (int)$group_id;
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if (!$user_id || !$group_id) {
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return false;
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}
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$sql = 'SELECT u.group_id
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FROM ' . BB_USER_GROUP . ' u, ' . BB_GROUPS . " g
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WHERE g.group_single_user = 0
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AND u.group_id = g.group_id
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AND u.user_id = $user_id
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AND g.group_id = $group_id
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LIMIT 1";
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if (!($result = DB()->sql_query($sql))) {
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bb_die('Could not get user group');
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}
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$num_rows = DB()->num_rows($result);
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DB()->sql_freeresult($result);
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return !($num_rows == 0);
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}
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/**
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* Realpath replacement for attachment mod
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*/
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function amod_realpath($path)
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{
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return (function_exists('realpath')) ? realpath($path) : $path;
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}
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/**
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* _set_var
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*
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* Set variable, used by {@link get_var the get_var function}
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*
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* @private
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*/
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function _set_var(&$result, $var, $type, $multibyte = false)
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{
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settype($var, $type);
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$result = $var;
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if ($type == 'string') {
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$result = trim(str_replace(array("\r\n", "\r", '\xFF'), array("\n", "\n", ' '), $result));
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// 2.0.x is doing addslashes on all variables
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$result = stripslashes($result);
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if ($multibyte) {
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$result = preg_replace('#&(\#[0-9]+;)#', '&\1', $result);
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}
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}
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}
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/**
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* Used to get passed variable
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*
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* @param $var_name
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* @param $default
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* @param bool $multibyte
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* @return array
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*/
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function get_var($var_name, $default, $multibyte = false)
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{
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if (!isset($_REQUEST[$var_name]) ||
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(is_array($_REQUEST[$var_name]) && !is_array($default)) ||
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(is_array($default) && !is_array($_REQUEST[$var_name]))) {
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return (is_array($default)) ? [] : $default;
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}
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$var = $_REQUEST[$var_name];
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if (!is_array($default)) {
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$type = gettype($default);
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$key_type = null;
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} else {
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foreach ($default as $key_type => $type) {
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$key_type = gettype($key_type);
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$type = gettype($type);
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}
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}
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if (is_array($var)) {
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$_var = $var;
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$var = [];
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foreach ($_var as $k => $v) {
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if (is_array($v)) {
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foreach ($v as $_k => $_v) {
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_set_var($k, $k, $key_type);
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_set_var($_k, $_k, $key_type);
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_set_var($var[$k][$_k], $_v, $type, $multibyte);
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}
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} else {
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_set_var($k, $k, $key_type);
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_set_var($var[$k], $v, $type, $multibyte);
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}
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}
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} else {
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_set_var($var, $var, $type, $multibyte);
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}
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return $var;
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}
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/**
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* Escaping SQL
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*/
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function attach_mod_sql_escape($text)
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{
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if (function_exists('mysqli_real_escape_string')) {
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return DB()->escape_string($text);
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}
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return str_replace(['\\', "'"], ['\\\\', "''"], $text);
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}
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/**
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* Build sql statement from array for insert/update/select statements
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*
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* Idea for this from Ikonboard
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* Possible query values: INSERT, INSERT_SELECT, MULTI_INSERT, UPDATE, SELECT
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*/
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function attach_mod_sql_build_array($query, $assoc_ary = false)
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{
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if (!is_array($assoc_ary)) {
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return false;
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}
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$fields = [];
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$values = [];
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if ($query == 'INSERT' || $query == 'INSERT_SELECT') {
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foreach ($assoc_ary as $key => $var) {
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$fields[] = $key;
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if (null === $var) {
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$values[] = 'NULL';
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} elseif (is_string($var)) {
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$values[] = "'" . attach_mod_sql_escape($var) . "'";
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} elseif (is_array($var) && is_string($var[0])) {
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$values[] = $var[0];
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} else {
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$values[] = (is_bool($var)) ? (int)$var : $var;
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}
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}
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$query = ($query == 'INSERT') ? ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')' : ' (' . implode(', ', $fields) . ') SELECT ' . implode(', ', $values) . ' ';
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} elseif ($query == 'MULTI_INSERT') {
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$ary = [];
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foreach ($assoc_ary as $id => $sql_ary) {
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$values = [];
|
||
foreach ($sql_ary as $key => $var) {
|
||
if (null === $var) {
|
||
$values[] = 'NULL';
|
||
} elseif (is_string($var)) {
|
||
$values[] = "'" . attach_mod_sql_escape($var) . "'";
|
||
} else {
|
||
$values[] = (is_bool($var)) ? (int)$var : $var;
|
||
}
|
||
}
|
||
$ary[] = '(' . implode(', ', $values) . ')';
|
||
}
|
||
|
||
$query = ' (' . implode(', ', array_keys($assoc_ary[0])) . ') VALUES ' . implode(', ', $ary);
|
||
} elseif ($query == 'UPDATE' || $query == 'SELECT') {
|
||
$values = [];
|
||
foreach ($assoc_ary as $key => $var) {
|
||
if (null === $var) {
|
||
$values[] = "$key = NULL";
|
||
} elseif (is_string($var)) {
|
||
$values[] = "$key = '" . attach_mod_sql_escape($var) . "'";
|
||
} else {
|
||
$values[] = (is_bool($var)) ? "$key = " . (int)$var : "$key = $var";
|
||
}
|
||
}
|
||
$query = implode(($query == 'UPDATE') ? ', ' : ' AND ', $values);
|
||
}
|
||
|
||
return $query;
|
||
}
|