375 lines
12 KiB
PHP
375 lines
12 KiB
PHP
<?php
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/**
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* [Discuz!] (C)2001-2099 Comsenz Inc.
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* This is NOT a freeware, use is subject to license terms
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*
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* $Id: discuz_error.php 33361 2013-05-31 08:59:06Z nemohou $
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*/
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if(!defined('IN_DISCUZ')) {
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exit('Access Denied');
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}
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class discuz_error
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{
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public static function system_error($message, $show = true, $save = true, $halt = true) {
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if(!empty($message)) {
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$message = lang('error', $message);
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} else {
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$message = lang('error', 'error_unknow');
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}
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list($showtrace, $logtrace) = discuz_error::debug_backtrace();
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if($save) {
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$messagesave = '<b>'.$message.'</b><br><b>PHP:</b>'.$logtrace;
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discuz_error::write_error_log($messagesave);
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}
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if($show) {
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discuz_error::show_error('system', "<li>$message</li>", $showtrace, '', md5(discuz_error::clear($messagesave)));
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}
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if($halt) {
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exit();
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} else {
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return $message;
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}
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}
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public static function template_error($message, $tplname) {
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$message = lang('error', $message);
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$tplname = str_replace(DISCUZ_ROOT, '', $tplname);
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$message = $message.': '.$tplname;
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discuz_error::system_error($message);
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}
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public static function debug_backtrace() {
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$skipfunc[] = 'discuz_error->debug_backtrace';
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$skipfunc[] = 'discuz_error->db_error';
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$skipfunc[] = 'discuz_error->template_error';
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$skipfunc[] = 'discuz_error->system_error';
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$skipfunc[] = 'db_mysql->halt';
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$skipfunc[] = 'db_mysql->query';
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$skipfunc[] = 'DB::_execute';
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$show = $log = '';
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$debug_backtrace = debug_backtrace();
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krsort($debug_backtrace);
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foreach ($debug_backtrace as $k => $error) {
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$file = str_replace(DISCUZ_ROOT, '', $error['file']);
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$func = isset($error['class']) ? $error['class'] : '';
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$func .= isset($error['type']) ? $error['type'] : '';
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$func .= isset($error['function']) ? $error['function'] : '';
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if(in_array($func, $skipfunc)) {
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break;
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}
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$error['line'] = sprintf('%04d', $error['line']);
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$show .= "<li>[Line: {$error['line']}]".$file."($func)</li>";
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$log .= (!empty($log) ? ' -> ' : '').$file.'#'.$func.':'.$error['line'];
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}
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return array($show, $log);
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}
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public static function db_error($message, $sql) {
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global $_G;
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list($showtrace, $logtrace) = discuz_error::debug_backtrace();
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$title = lang('error', 'db_'.$message);
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$title_msg = lang('error', 'db_error_message');
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$title_sql = lang('error', 'db_query_sql');
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$title_backtrace = lang('error', 'backtrace');
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$title_help = lang('error', 'db_help_link');
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$db = &DB::object();
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$dberrno = $db->errno();
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$dberror = str_replace($db->tablepre, '', $db->error());
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$sql = dhtmlspecialchars(str_replace($db->tablepre, '', $sql));
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$msg = '<li>[Type] '.$title.'</li>';
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$msg .= $dberrno ? '<li>['.$dberrno.'] '.$dberror.'</li>' : '';
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$msg .= $sql ? '<li>[Query] '.$sql.'</li>' : '';
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$errormsg = '<b>'.$title.'</b>';
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$errormsg .= "[$dberrno]<br /><b>ERR:</b> $dberror<br />";
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if($sql) {
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$errormsg .= '<b>SQL:</b> '.$sql;
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}
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$errormsg .= "<br />";
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$errormsg .= '<b>PHP:</b> '.$logtrace;
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discuz_error::write_error_log($errormsg);
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discuz_error::show_error('db', $msg, $showtrace, '', md5(discuz_error::clear($errormsg)));
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exit();
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}
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public static function exception_error($exception) {
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if($exception instanceof DbException) {
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$type = 'db';
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} else {
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$type = 'system';
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}
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if($type == 'db') {
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$errormsg = '('.$exception->getCode().') ';
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$errormsg .= self::sql_clear($exception->getMessage());
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if($exception->getSql()) {
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$errormsg .= '<div class="sql">';
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$errormsg .= self::sql_clear($exception->getSql());
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$errormsg .= '</div>';
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}
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} else {
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$errormsg = $exception->getMessage();
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}
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$trace = $exception->getTrace();
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krsort($trace);
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$trace[] = array('file'=>$exception->getFile(), 'line'=>$exception->getLine(), 'function'=> 'break');
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$logmsg = '';
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$phpmsg = array();
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foreach ($trace as $error) {
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if(!empty($error['function'])) {
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$fun = '';
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if(!empty($error['class'])) {
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$fun .= $error['class'].$error['type'];
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}
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$fun .= $error['function'].'(';
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if(!empty($error['args'])) {
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$mark = '';
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foreach($error['args'] as $arg) {
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$fun .= $mark;
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if(is_array($arg)) {
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$fun .= 'Array';
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} elseif(is_bool($arg)) {
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$fun .= $arg ? 'true' : 'false';
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} elseif(is_int($arg)) {
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$fun .= (defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) ? $arg : '%d';
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} elseif(is_float($arg)) {
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$fun .= (defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) ? $arg : '%f';
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} elseif(is_resource($arg)) {
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$fun .= (defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) ? 'Resource' : '%f';
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} elseif(is_object($arg)) {
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$fun .= (defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) ? 'Object' : '%f';
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} else {
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$arg = (string)$arg;
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$fun .= (defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) ? '\''.dhtmlspecialchars(substr(self::clear($arg), 0, 10)).(strlen($arg) > 10 ? ' ...' : '').'\'' : '%s';
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}
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$mark = ', ';
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}
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}
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$fun .= ')';
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$error['function'] = $fun;
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}
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$phpmsg[] = array(
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'file' => str_replace(array(DISCUZ_ROOT, '\\'), array('', '/'), $error['file']),
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'line' => $error['line'],
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'function' => $error['function'],
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);
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$file = str_replace(array(DISCUZ_ROOT, '\\'), array('', '/'), $error['file']);
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$func = isset($error['class']) ? $error['class'] : '';
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$func .= isset($error['type']) ? $error['type'] : '';
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$func .= isset($error['function']) ? $error['function'] : '';
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$line = sprintf('%04d', $error['line']);
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$logmsg .= (!empty($logmsg) ? ' -> ' : '').$file.'#'.$func.':'.$line;
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}
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$messagesave = '<b>'.$errormsg.'</b><br><b>PHP:</b>'.$logmsg;
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self::write_error_log($messagesave);
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self::show_error($type, $errormsg, $phpmsg, '', md5(discuz_error::clear($messagesave)));
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exit();
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}
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public static function show_error($type, $errormsg, $phpmsg = '', $typemsg = '', $backtraceid = '') {
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global $_G;
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ob_end_clean();
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$gzip = getglobal('gzipcompress');
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ob_start($gzip ? 'ob_gzhandler' : null);
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header("HTTP/1.1 503 Service Temporarily Unavailable");
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header("Status: 503 Service Temporarily Unavailable");
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header("Retry-After: 3600");
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$host = $_SERVER['HTTP_HOST'];
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$title = (!isset($_G['config']['security']['error']['showerror']) || !empty($_G['config']['security']['error']['showerror'])) ? ($type == 'db' ? 'Database' : 'System') : 'General';
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echo <<<EOT
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<!DOCTYPE html>
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<html>
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<head>
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<title>$host - $title Error</title>
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<meta charset="{$_G['config']['output']['charset']}" />
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<meta name="renderer" content="webkit" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="ROBOTS" content="NOINDEX,NOFOLLOW,NOARCHIVE" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<style type="text/css">
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<!--
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body { background-color: white; color: black; font: 9pt/11pt verdana, arial, sans-serif;}
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#container { max-width: 1024px; margin: auto; }
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#message { max-width: 1024px; color: black; }
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.red {color: red;}
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a:link { font: 9pt/11pt verdana, arial, sans-serif; color: red; }
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a:visited { font: 9pt/11pt verdana, arial, sans-serif; color: #4e4e4e; }
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a.guess { font: 11pt/13pt verdana, arial, sans-serif; color: blue; }
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h1 { color: #FF0000; font: 18pt "Verdana"; margin-bottom: 0.5em;}
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.bg1{ background-color: #FFFFCC;}
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.bg2{ background-color: #EEEEEE;}
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.bg3{ background-color: #FFA66C; font-weight: bold;}
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.table {background: #AAAAAA; font: 11pt Menlo,Consolas,"Lucida Console";}
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.table tbody{word-break: break-all;}
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.info {
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background: none repeat scroll 0 0 #F3F3F3;
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border: 0px solid #aaaaaa;
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border-radius: 10px 10px 10px 10px;
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color: #000000;
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font-size: 11pt;
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line-height: 160%;
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margin-bottom: 1em;
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padding: 1em;
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}
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.info svg { width: 40%; min-width: 200px; display: block; margin: auto; margin-bottom: 30px; fill: #999; }
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.info svg .xicon { fill: #d31f0d; }
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.help {
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background: #F3F3F3;
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border-radius: 10px 10px 10px 10px;
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font: 14px verdana, arial, sans-serif;
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text-align: center;
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line-height: 160%;
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padding: 1em;
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margin: 1em 0;
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}
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.sql {
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background: none repeat scroll 0 0 #FFFFCC;
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border: 1px solid #aaaaaa;
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color: #000000;
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font: arial, sans-serif;
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font-size: 9pt;
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line-height: 160%;
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margin-top: 1em;
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padding: 4px;
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}
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-->
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</style>
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</head>
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<body>
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<div id="container">
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<h1>Discuz! $title Error</h1>
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EOT;
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echo '<p>Time: ' . date('Y-m-d H:i:s O') .' IP: ' . getglobal('clientip') . ' BackTraceID: ' . $backtraceid . '</p>';
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if(!empty($errormsg) && (!isset($_G['config']['security']['error']['showerror']) || !empty($_G['config']['security']['error']['showerror']))) {
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echo '<div class="info">'.$errormsg.'</div>';
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}
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if(isset($_G['config']['security']['error']['showerror']) && empty($_G['config']['security']['error']['showerror'])) {
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echo '<div class="info"><svg viewBox="0 0 16 16"><path d="M2.5 5a.5.5 0 100-1 .5.5 0 000 1zM4 5a.5.5 0 100-1 .5.5 0 000 1zm2-.5a.5.5 0 11-1 0 .5.5 0 011 0zM0 4a2 2 0 012-2h11a2 2 0 012 2v4a.5.5 0 01-1 0V7H1v5a1 1 0 001 1h5.5a.5.5 0 010 1H2a2 2 0 01-2-2V4zm1 2h13V4a1 1 0 00-1-1H2a1 1 0 00-1 1v2z"/><path d="M16 12.5a3.5 3.5 0 11-7 0 3.5 3.5 0 017 0zm-4.854-1.354a.5.5 0 000 .708l.647.646-.647.646a.5.5 0 00.708.708l.646-.647.646.647a.5.5 0 00.708-.708l-.647-.646.647-.646a.5.5 0 00-.708-.708l-.646.647-.646-.647a.5.5 0 00-.708 0z" class="xicon"/></svg></div>';
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}
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if(!empty($phpmsg) && (!isset($_G['config']['security']['error']['showerror']) || $_G['config']['security']['error']['showerror'] == '1')) {
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echo '<div class="info">';
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echo '<p><strong>PHP Debug</strong></p>';
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echo '<table cellpadding="5" cellspacing="1" width="100%" class="table">';
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if(is_array($phpmsg)) {
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echo '<tr class="bg2"><td>No.</td><td>File</td><td>Line</td><td>Code</td></tr>';
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foreach($phpmsg as $k => $msg) {
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$k++;
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$explode = explode("/", $msg['file']);
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if (isset($explode['1']) && $explode['1'] == 'plugin') {
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$guess = $explode['2'];
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$bg = "bg3";
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} else {
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$bg = "bg1";
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}
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echo '<tr class="'.$bg.'">';
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echo '<td>'.$k.'</td>';
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echo '<td>'.$msg['file'].'</td>';
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echo '<td>'.$msg['line'].'</td>';
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echo '<td>'.$msg['function'].'</td>';
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echo '</tr>';
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}
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} else {
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echo '<tr><td><ul>'.$phpmsg.'</ul></td></tr>';
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}
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echo '</table></div>';
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}
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echo '<div class="help">'.lang('error', 'suggestion_user').'</div>';
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if (!isset($_G['config']['security']['error']['guessplugin']) || !empty($_G['config']['security']['error']['guessplugin'])) {
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if (!empty($guess)) {
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$suggestion = lang('error', 'suggestion_plugin', array('guess'=>$guess));
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} else {
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$suggestion = lang('error', 'suggestion');
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}
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echo '<div class="help">'.$suggestion.'</div>';
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}
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$endmsg = lang('error', 'error_end_message', array('host'=>$host));
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echo <<<EOT
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<div class="help">$endmsg</div>
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</div>
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</body>
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</html>
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EOT;
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}
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public static function clear($message) {
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return str_replace(array("\t", "\r", "\n"), " ", $message);
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}
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public static function sql_clear($message) {
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$message = self::clear($message);
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$message = str_replace(DB::object()->tablepre, '', $message);
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$message = dhtmlspecialchars($message);
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return $message;
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}
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public static function write_error_log($message) {
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$message = discuz_error::clear($message);
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$time = time();
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$file = DISCUZ_ROOT.'./data/log/'.date("Ym").'_errorlog.php';
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$hash = md5($message);
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$uid = getglobal('uid');
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$ip = getglobal('clientip');
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$user = '<b>User:</b> uid='.intval($uid).'; IP='.$ip.'; RIP:'.$_SERVER['REMOTE_ADDR'];
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$uri = 'Request: '.dhtmlspecialchars(discuz_error::clear($_SERVER['REQUEST_URI']));
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$message = "<?PHP exit;?>\t{$time}\t$message\t$hash\t$user $uri\n";
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if($fp = @fopen($file, 'rb')) {
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$lastlen = 50000;
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$maxtime = 60 * 10;
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$offset = filesize($file) - $lastlen;
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if($offset > 0) {
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fseek($fp, $offset);
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}
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if($data = fread($fp, $lastlen)) {
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$array = explode("\n", $data);
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if(is_array($array)) foreach($array as $key => $val) {
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$row = explode("\t", $val);
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if($row[0] != '<?PHP exit;?>') continue;
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if($row[3] == $hash && ($row[1] > $time - $maxtime)) {
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return;
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}
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}
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}
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}
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error_log($message, 3, $file);
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}
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} |