📄 functions.php
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<?php/* Copyright (C) 2003-2005 UseBB Team http://www.usebb.net $Header: /cvsroot/usebb/UseBB/sources/functions.php,v 1.225 2005/08/23 11:14:12 pc_freak Exp $ This file is part of UseBB. UseBB is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. UseBB is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with UseBB; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA*///// Die when called directly in browser//if ( !defined('INCLUDED') ) exit();//// Add slashes to and trim variables//function slash_trim_global($global) { if ( is_array($global) ) { foreach ( $global as $key => $val ) { if ( is_array($val) ) { $global[$key] = slash_trim_global($val); } else { if ( !get_magic_quotes_gpc() ) $val = addslashes($val); $global[$key] = trim($val); } } } return $global; }//// Replacement for htmlspecialchars()// Doesn't mess up Cyrillic (and other) characters// which are sent in entities by a browser//function unhtml($string) { return preg_replace(array('#&#', '#&\#([0-9]+)#', '#&\#(160|173|8192|8193|8194|8195|8196|8197|8198|8199|8120|8201|8202|8203|8204|8205|8206|8207)#', '#<#', '#>#', '#"#'), array('&', '&#\\1', '&#\\1', '<', '>', '"'), $string); }//// Find the length of a string containing entities//function entities_strlen($string) { return strlen(preg_replace('#&\#?[a-z0-9]+;#', '.', $string)); }//// Check if a value is a valid integer string// Obtained from http://phpsec.org/projects/guide/1.html//function valid_int($string) { if ( $string == strval(intval($string)) ) return true; else return false; }class functions { var $board_config; var $board_config_original; var $statistics = array(); var $languages = array(); var $language_sections = array(); var $mod_auth; var $badwords; var $updated_forums; var $available = array('templates' => array(), 'languages' => array()); // // General error die function // function usebb_die($errno, $error, $file, $line) { global $db, $dbs; // // Don't show various errors on PHP5 // if ( intval(substr(phpversion(), 0, 1)) > 4 ) { $ignore_warnings = array( 'var: Deprecated. Please use the public/private/protected modifiers', 'Trying to get property of non-object', ); if ( in_array($error, $ignore_warnings) ) return; } $errtypes = array( 1 => 'E_ERROR', 2 => 'E_WARNING', 4 => 'E_PARSE', 8 => 'E_NOTICE', 16 => 'E_CORE_ERROR', 32 => 'E_CORE_WARNING', 64 => 'E_COMPILE_ERROR', 128 => 'E_COMPILE_WARNING', 256 => 'E_USER_ERROR', 512 => 'E_USER_WARNING', 1024 => 'E_USER_NOTICE', 2048 => 'E_STRICT' ); $errtype = ( preg_match('#^SQL: #', $error) ) ? 'SQL_ERROR' : $errtypes[$errno]; if ( $errtype == 'SQL_ERROR' ) $error = ( $this->get_config('debug') >= 2 ) ? substr($error, 5) : 'Fatal SQL error!'; $log_msg = '[UseBB Error] ['.date('D M d G:i:s Y').'] ['.$errtype.' - '.$error.'] ['.$file.':'.$line.']'; error_log($log_msg); $html_msg = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>UseBB General Error</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <style type="text/css"> body { font-family: sans-serif; font-size: 10pt; } h1 { color: #336699; } blockquote { width: 50%; border-top: 2px solid silver; border-bottom: 2px solid silver; font-family: monospace; font-size: 8pt; } </style> </head> <body> <h1>UseBB General Error</h1> <p>An error was encoutered. We apologize for any inconvenience.</p> <blockquote> <p>In file <strong>'.substr(str_replace(dirname($file), '', $file), 1).'</strong> on line <strong>'.$line.'</strong>:</p><p><em>'.$errtype.'</em> - '.$error.'</p>'; if ( $errtype == 'SQL_ERROR' ) { // // FIXME // Needs to be done this way due to bug(?): http://bugs.php.net/bug.php?id=33643 // $used_queries = $db->get_used_queries(); if ( count($used_queries) ) { if ( $this->get_config('debug') >= 2 ) $html_msg .= ' <p>SQL query causing the error:<br /><textarea rows="6" cols="60" readonly="readonly">'.end($used_queries).'</textarea></p>'; else $html_msg .= ' <p>Enable debug mode level 2 to see the error and erroneous SQL query.</p>'; } } $html_msg .= ' </blockquote> <p>This error should probably not have occured, so please report it to the webmaster. Thank you for your help.</p> <p>If you are the webmaster of this board and you believe this is a bug, please send a bug report.</p> </body></html>'; die($html_msg); } // // Get configuration variables // function get_config($setting) { global $session; if ( !isset($this->board_config) ) { $this->board_config = $GLOBALS['conf']; $this->board_config_original = $GLOBALS['conf']; unset($GLOBALS['conf']); } // // Member preferences // if ( count($session->sess_info) && $session->sess_info['user_id'] && array_key_exists($setting, $session->sess_info['user_info']) ) { $keep_default = false; if ( $setting == 'language' ) { if ( !in_array($session->sess_info['user_info'][$setting], $this->get_language_packs()) ) $keep_default = true; } elseif ( $setting == 'template' ) { if ( !in_array($session->sess_info['user_info'][$setting], $this->get_template_sets()) ) $keep_default = true; } if ( !$keep_default ) $this->board_config[$setting] = stripslashes($session->sess_info['user_info'][$setting]); } if ( $setting == 'board_url' && empty($this->board_config['board_url']) ) { $path_parts = pathinfo($_SERVER['SCRIPT_NAME']); $protocol = ( isset($_SERVER['HTTPS']) ) ? 'https' : 'http'; return $protocol.'://'.$_SERVER['HTTP_HOST'].$path_parts['dirname'].'/'; } elseif ( $setting == 'cookie_path' && empty($this->board_config['cookie_path']) ) { $path_parts = pathinfo($_SERVER['SCRIPT_NAME']); return $path_parts['dirname']; } elseif ( array_key_exists($setting, $this->board_config) ) { return $this->board_config[$setting]; } else { if ( isset($this->board_config['hide_undefined_config_setting_warnings']) && !$this->board_config['hide_undefined_config_setting_warnings'] ) trigger_error('Unable to get configuration value "'.$setting.'"!'); else return false; } } // // Get board statistics // function get_stats($stat) { global $db; if ( $stat == 'categories' ) { // // Get the category count // if ( !array_key_exists($stat, $this->statistics) ) { $result = $db->query("SELECT COUNT(id) AS count FROM ".TABLE_PREFIX."cats"); $out = $db->fetch_result($result); $this->statistics[$stat] = $out['count']; } return $this->statistics[$stat]; } elseif ( $stat == 'forums' || $stat == 'viewable_forums' ) { // // Get the forums // if ( !array_key_exists($stat, $this->statistics) ) { $result = $db->query("SELECT id, auth FROM ".TABLE_PREFIX."forums"); $this->statistics['forums'] = 0; $this->statistics['viewable_forums'] = 0; while ( $forumdata = $db->fetch_result($result) ) { // // We also set the other statistic: (viewable_)forums // This might save a query // // forums $this->statistics['forums']++; // viewable_forums if ( $this->auth($forumdata['auth'], 'view', $forumdata['id']) ) $this->statistics['viewable_forums']++; } } return $this->statistics[$stat]; } elseif ( $stat == 'latest_member' ) { // // Get the latest member // if ( !array_key_exists($stat, $this->statistics) ) { $result = $db->query("SELECT id, displayed_name, regdate FROM ".TABLE_PREFIX."members ORDER BY id DESC LIMIT 1"); $this->statistics[$stat] = $db->fetch_result($result); } return $this->statistics[$stat]; } else { if ( !array_key_exists($stat, $this->statistics) ) { $result = $db->query("SELECT name, content FROM ".TABLE_PREFIX."stats"); while ( $out = $db->fetch_result($result) ) $this->statistics[$out['name']] = $out['content']; } if ( array_key_exists($stat, $this->statistics) ) return $this->statistics[$stat]; else trigger_error('The statistic variable "'.$stat.'" does not exist!'); } } // // Interactive URL builder // function make_url($filename, $vars=array(), $html=true) { global $session; if ( $this->get_config('friendly_urls') && $filename != 'admin.php' ) { // // Friendly URL's // $url = preg_replace('#\.php$#', '', $filename); foreach ( $vars as $key => $val ) { if ( in_array($key, array('forum', 'topic', 'post', 'quotepost', 'al')) ) $url .= '-'.urlencode($key.$val); else $url .= '-'.urlencode($val); } $url .= ( $filename == 'rss.php' ) ? '.xml' : '.html'; } else { $url = $filename; $vars = ( is_array($vars) ) ? $vars : array(); if ( isset($vars[$this->get_config('session_name').'_sid']) ) unset($vars[$this->get_config('session_name').'_sid']); // // Pass session ID's // $SID = SID; $SID_parts = explode('=', $SID, 2); if ( !empty($SID) && !preg_match('#'.preg_quote(gethostbyaddr($session->sess_info['ip_addr']), '#').'#', 'googlebot.com$') && ( !$html || ( $html && !@ini_get('session.use_trans_sid') ) ) ) $vars[$SID_parts[0]] = $SID_parts[1]; if ( count($vars) ) { $url .= '?'; if ( $html ) { foreach ( $vars as $key => $val ) $safe[] = urlencode($key).'='.urlencode($val); $url .= join('&', $safe); } else { foreach ( $vars as $key => $val ) $safe[] = $key.'='.$val; $url .= join('&', $safe); } } } return $url; } // // Attaches a SID to URLs which should contain one (e.g. referer URLs) // function attach_sid($url) { $SID = SID; if ( !$this->get_config('friendly_urls') && !empty($SID) && !preg_match('/'.preg_quote($SID, '/').'$/', $url) ) { if ( strpos($url, '?') ) return $url.'&'.$SID;⌨️ 快捷键说明
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