Discuz X3核心文件解析

<?php

/**

*      [Discuz!] (C)2001-2099 Comsenz Inc.

*      This is NOT a freeware, use is subject to license terms

*

*      $Id: discuz_application.php 34170 2013-10-28 02:58:29Z nemohou $

*/

if(!defined('IN_DISCUZ')) {

exit('Access Denied');

}

class discuz_application extends discuz_base{

var $mem = null;

var $session = null;

var $config = array();

var $var = array();

var $cachelist = array();

var $init_db = true;

var $init_setting = true;

var $init_user = true;

var $init_session = true;

var $init_cron = true;

var $init_misc = true;

var $init_mobile = true;

var $initated = false;//初始化工作未完成标志

var $superglobal = array(//超全局变量

'GLOBALS' => 1,

'_GET' => 1,

'_POST' => 1,

'_REQUEST' => 1,

'_COOKIE' => 1,

'_SERVER' => 1,

'_ENV' => 1,

'_FILES' => 1,

);

static function &instance() {//实例化

static $object;

if(empty($object)) {

$object = new self();

}

return $object;

}

public function __construct() {

$this->_init_env();//初始化环境变量

$this->_init_config();//初始化配置变量

$this->_init_input();//初始化输入

$this->_init_output(); //初始化输出

}

public function init() {

if(!$this->initated) {

$this->_init_db();//初始化数据库

$this->_init_setting(); //系统设置初始化

$this->_init_user();//用户信息初始化

$this->_init_session();//session操作初始化

$this->_init_mobile(); //手机功能初始化

$this->_init_cron(); //计划任务初始化

$this->_init_misc();//其他功能初始化

}

$this->initated = true;//设置完成标志

}

//环境变量初始化方法

private function _init_env() {

error_reporting(E_ERROR);//定义错误报告等级

if(PHP_VERSION < '5.3.0') {

set_magic_quotes_runtime(0);//设置set_magic_quotes_runtime

}

define('MAGIC_QUOTES_GPC', function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc()); //定义MAGIC_QUOTES_GPC

define('ICONV_ENABLE', function_exists('iconv'));//定义转码函数常量，如果 iconv函数支持，则为TRUE

define('MB_ENABLE', function_exists('mb_convert_encoding'));//转码函数是否支持

define('EXT_OBGZIP', function_exists('ob_gzhandler'));//缓存输出句柄函数

define('TIMESTAMP', time());//定义当前时间戳常量

$this->timezone_set();

/*如果系统核心函数库文件未include,则include,

* 如果核心函数库文件缺失，则退出，

*因为function_core.php是系统本身的函数库，必须加载

*/

if(!defined('DISCUZ_CORE_FUNCTION') && !@include(DISCUZ_ROOT.'./source/function/function_core.php')) {

exit('function_core.php is missing');

}

/*

* 以下6行代码的作用是设置内存使用限制，

* 如果小于32M,则增加为128M，

* 因为memory_limit小于32M，可能会不够用，

* 毕竟X系统比较大，可能内存会使用的多点，

* 如果不支持ini_set函数，就得去php.ini中修改了。

*/

if(function_exists('ini_get')) {

$memorylimit = @ini_get('memory_limit');

if($memorylimit && return_bytes($memorylimit) < 33554432 && function_exists('ini_set')) {

ini_set('memory_limit', '128m');

}

}

define('IS_ROBOT', checkrobot());//检测机器人

foreach ($GLOBALS as $key => $value) {//注销所有的超级变量。

if (!isset($this->superglobal[$key])) {

$GLOBALS[$key] = null; unset($GLOBALS[$key]);

}

}

global $_G;//$_G大数组是Discuz中自定义的超级变量

$_G = array(

'uid' => 0,//uid

'username' => '',//用户名

'adminid' => 0,//adminid标识

'groupid' => 1, //用户组ID

'sid' => '', // sessionID

'formhash' => '',//表单验证认证

'connectguest' => 0,

'timestamp' => TIMESTAMP,//时间戳

'starttime' => microtime(true),//开始时间

'clientip' => $this->_get_client_ip(), //客户端IP

'remoteport' => $_SERVER['REMOTE_PORT'],//远程端口号

'referer' => '',//referer地址

'charset' => '', //字符串编码

'gzipcompress' => '',//gzip

'authkey' => '', //authkey  认证码

'timenow' => array(),//当前时间

'widthauto' => 0,

'disabledwidthauto' => 0,

'PHP_SELF' => '',//PHP_SELF

'siteurl' => '',//网站地址

'siteroot' => '', //网站根目录

'siteport' => '',//网站端口号

'pluginrunlist' => !defined('PLUGINRUNLIST') ? array() : explode(',', PLUGINRUNLIST),

'config' => array(),//配置变量数组

'setting' => array(),//设置变量数组

'member' => array(),//用户信息数组

'group' => array(),//用户组数组

'cookie' => array(),//cookie数组

'style' => array(),//风格数组

'cache' => array(),//缓存列表数组

'session' => array(), //session变量数组

'lang' => array(),//语言包数组

'my_app' => array(),//我的应用数组

'my_userapp' => array(),//用户应用数组

'fid' => 0,

'tid' => 0,

'forum' => array(),//论坛板块数组

'thread' => array(),//论坛相关帖子数组

'rssauth' => '',//RSS订阅认证

'home' => array(), //home功能相关数组

'space' => array(),//space功能相关数组

'block' => array(),//块信息数组

'article' => array(),

'action' => array(

'action' => APPTYPEID,

'fid' => 0,

'tid' => 0,

),

'mobile' => '',//手机信息

'notice_structure' => array(

'mypost' => array('post','pcomment','activity','reward','goods','at'),

'interactive' => array('poke','friend','wall','comment','click','sharenotice'),

'system' => array('system','myapp','credit','group','verify','magic','task','show','group','pusearticle','mod_member','blog','article'),

'manage' => array('mod_member','report','pmreport'),

'app' => array(),

),

'mobiletpl' => array('1' => 'mobile', '2' => 'touch', '3' => 'wml','yes' => 'mobile'),

);

$_G['PHP_SELF'] = dhtmlspecialchars($this->_get_script_url());//网站地址

$_G['basescript'] = CURSCRIPT;//当前脚本

$_G['basefilename'] = basename($_G['PHP_SELF']);//当前脚本名称

$sitepath = substr($_G['PHP_SELF'], 0, strrpos($_G['PHP_SELF'], '/'));//网站根地址

if(defined('IN_API')) {

$sitepath = preg_replace("/\/api\/?.*?$/i", '', $sitepath);

} elseif(defined('IN_ARCHIVER')) {

$sitepath = preg_replace("/\/archiver/i", '', $sitepath);

}

$_G['isHTTPS'] = ($_SERVER['HTTPS'] && strtolower($_SERVER['HTTPS']) != 'off') ? true : false;

$_G['siteurl'] = dhtmlspecialchars('http'.($_G['isHTTPS'] ? 's' : '').'://'.$_SERVER['HTTP_HOST'].$sitepath.'/');

$url = parse_url($_G['siteurl']);

$_G['siteroot'] = isset($url['path']) ? $url['path'] : '';

$_G['siteport'] = empty($_SERVER['SERVER_PORT']) || $_SERVER['SERVER_PORT'] == '80' || $_SERVER['SERVER_PORT'] == '443' ? '' : ':'.$_SERVER['SERVER_PORT'];

if(defined('SUB_DIR')) {//二级目录设置

$_G['siteurl'] = str_replace(SUB_DIR, '/', $_G['siteurl']);

$_G['siteroot'] = str_replace(SUB_DIR, '/', $_G['siteroot']);

}

$this->var = & $_G;

}

private function _get_script_url() {

if(!isset($this->var['PHP_SELF'])){

$scriptName = basename($_SERVER['SCRIPT_FILENAME']);

if(basename($_SERVER['SCRIPT_NAME']) === $scriptName) {

$this->var['PHP_SELF'] = $_SERVER['SCRIPT_NAME'];

} else if(basename($_SERVER['PHP_SELF']) === $scriptName) {

$this->var['PHP_SELF'] = $_SERVER['PHP_SELF'];

} else if(isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $scriptName) {

$this->var['PHP_SELF'] = $_SERVER['ORIG_SCRIPT_NAME'];

} else if(($pos = strpos($_SERVER['PHP_SELF'],'/'.$scriptName)) !== false) {

$this->var['PHP_SELF'] = substr($_SERVER['SCRIPT_NAME'],0,$pos).'/'.$scriptName;

} else if(isset($_SERVER['DOCUMENT_ROOT']) && strpos($_SERVER['SCRIPT_FILENAME'],$_SERVER['DOCUMENT_ROOT']) === 0) {

$this->var['PHP_SELF'] = str_replace('\\','/',str_replace($_SERVER['DOCUMENT_ROOT'],'',$_SERVER['SCRIPT_FILENAME']));

$this->var['PHP_SELF'][0] != '/' && $this->var['PHP_SELF'] = '/'.$this->var['PHP_SELF'];

} else {

system_error('request_tainting');

}

}

return $this->var['PHP_SELF'];

}

private function _init_input() { //输入初始化方法

/*

* 以下代码未GPC安全机制，进行转义

*/

if (isset($_GET['GLOBALS']) ||isset($_POST['GLOBALS']) ||  isset($_COOKIE['GLOBALS']) || isset($_FILES['GLOBALS'])) {

system_error('request_tainting');

}

/*

* 以下代码意思是，如果cookie的键值等于定义的键值，那么截取cookiepre

*/

if(MAGIC_QUOTES_GPC) {

$_GET = dstripslashes($_GET);

$_POST = dstripslashes($_POST);

$_COOKIE = dstripslashes($_COOKIE);

}

$prelength = strlen($this->config['cookie']['cookiepre']);

foreach($_COOKIE as $key => $val) {

if(substr($key, 0, $prelength) == $this->config['cookie']['cookiepre']) {

$this->var['cookie'][substr($key, $prelength)] = $val;

}

}

//合并$_POST和$_GET

if($_SERVER['REQUEST_METHOD'] == 'POST' && !empty($_POST)) {

$_GET = array_merge($_GET, $_POST);

}

if(isset($_GET['page'])) {

$_GET['page'] = rawurlencode($_GET['page']);

}

if(!(!empty($_GET['handlekey']) && preg_match('/^\w+$/', $_GET['handlekey']))) {

unset($_GET['handlekey']);

}

//然后把$_POST和$_GET的值都赋予gp变量中,方便使用

if(!empty($this->var['config']['input']['compatible'])) {

foreach($_GET as $k => $v) {

$this->var['gp_'.$k] = daddslashes($v);

}

}

//获得$mod变量 ?mod=xxx,则$this->var['mod']为xxx

$this->var['mod'] = empty($_GET['mod']) ? '' : dhtmlspecialchars($_GET['mod']);

//是否需要ajax方式

$this->var['inajax'] = empty($_GET['inajax']) ? 0 : (empty($this->var['config']['output']['ajaxvalidate']) ? 1 : ($_SERVER['REQUEST_METHOD'] == 'GET' && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest' || $_SERVER['REQUEST_METHOD'] == 'POST' ? 1 : 0));

//页面获取,最小为1

$this->var['page'] = empty($_GET['page']) ? 1 : max(1, intval($_GET['page']));

//sid获取

$this->var['sid'] = $this->var['cookie']['sid'] = isset($this->var['cookie']['sid']) ? dhtmlspecialchars($this->var['cookie']['sid']) : '';

if(empty($this->var['cookie']['saltkey'])) {

$this->var['cookie']['saltkey'] = random(8);

dsetcookie('saltkey', $this->var['cookie']['saltkey'], 86400 * 30, 1, 1);

}

$this->var['authkey'] = md5($this->var['config']['security']['authkey'].$this->var['cookie']['saltkey']);

}

private function _init_config() {//获得配置文件

$_config = array();

//加载全局配置文件

@include DISCUZ_ROOT.'./config/config_global.php';

//以下代码为：如果config不存在，要么没安装，要么文件不存在，系统报错

if(empty($_config)) {

if(!file_exists(DISCUZ_ROOT.'./data/install.lock')) {

header('location: install');

exit;

} else {

system_error('config_notfound');

}

}

//设置安全验证的authkey

if(empty($_config['security']['authkey'])) {

$_config['security']['authkey'] = md5($_config['cookie']['cookiepre'].$_config['db'][1]['dbname']);

}

//以下代码为是否调试模式，

if(empty($_config['debug']) || !file_exists(libfile('function/debug'))) {

define('DISCUZ_DEBUG', false);

error_reporting(0);

} elseif($_config['debug'] === 1 || $_config['debug'] === 2 || !empty($_REQUEST['debug']) && $_REQUEST['debug'] === $_config['debug']) {

define('DISCUZ_DEBUG', true);

error_reporting(E_ERROR);

if($_config['debug'] === 2) {

error_reporting(E_ALL);

}

} else {

define('DISCUZ_DEBUG', false);

error_reporting(0);

}

//定义静态文件常量,如：css,img等，如果$_config['output']['staticurl']为空，

//则是默认的static目录，就是默认目录

define('STATICURL', !empty($_config['output']['staticurl']) ? $_config['output']['staticurl'] : 'static/');

$this->var['staticurl'] = STATICURL;

//引用$_config变量，改变$this->config,则$_config改变，保持统一

$this->config = & $_config;

$this->var['config'] = & $_config;

//设置cookie域，一般是设置目录域。/不存在则加上/,安全性更高

if(substr($_config['cookie']['cookiepath'], 0, 1) != '/') {

$this->var['config']['cookie']['cookiepath'] = '/'.$this->var['config']['cookie']['cookiepath'];

}

$this->var['config']['cookie']['cookiepre'] = $this->var['config']['cookie']['cookiepre'].substr(md5($this->var['config']['cookie']['cookiepath'].'|'.$this->var['config']['cookie']['cookiedomain']), 0, 4).'_';

}

private function _init_output() {//输出初始化方法

//验证码设置，加载include/misc/misc_security.php文件,验证功能;

if($this->config['security']['attackevasive'] && (!defined('CURSCRIPT') || !in_array($this->var['mod'], array('seccode', 'secqaa', 'swfupload')) && !defined('DISABLEDEFENSE'))) {

require_once libfile('misc/security', 'include');

}

//是否开启gzip,如果不支持gzip，则定义为false

if(!empty($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') === false) {

$this->config['output']['gzip'] = false;

}

//把$allowgzip写入全局变量中

$allowgzip = $this->config['output']['gzip'] && empty($this->var['inajax']) && $this->var['mod'] != 'attachment' && EXT_OBGZIP;

setglobal('gzipcompress', $allowgzip);

//定义输出缓存

if(!ob_start($allowgzip ? 'ob_gzhandler' : null)) {

ob_start();

}

//把配置文件中的字符集赋予全局变量中

setglobal('charset', $this->config['output']['charset']);

define('CHARSET', $this->config['output']['charset']);

if($this->config['output']['forceheader']) {

//设置网页编码,强制输出

@header('Content-Type: text/html; charset='.CHARSET);

}

}

public function reject_robot() { //拒绝机器人访问，设置为403错误

if(IS_ROBOT) {

exit(header("HTTP/1.1 403 Forbidden"));

}

}

private function _xss_check() { //检测xss漏洞,UBB

static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');

if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {

system_error('request_tainting');

}

if($_SERVER['REQUEST_METHOD'] == 'GET' ) {

$temp = $_SERVER['REQUEST_URI'];

} elseif(empty ($_GET['formhash'])) {

$temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');

} else {

$temp = '';

}

if(!empty($temp)) {

$temp = strtoupper(urldecode(urldecode($temp)));

foreach ($check as $str) {

if(strpos($temp, $str) !== false) {

system_error('request_tainting');

}

}

}

return true;

}

private function _get_client_ip() { //得到客户端IP

$ip = $_SERVER['REMOTE_ADDR'];

if (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) {

$ip = $_SERVER['HTTP_CLIENT_IP'];

} elseif(isset($_SERVER['HTTP_X_FORWARDED_FOR']) AND preg_match_all('#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#s', $_SERVER['HTTP_X_FORWARDED_FOR'], $matches)) {

foreach ($matches[0] AS $xip) {

if (!preg_match('#^(10|172\.16|192\.168)\.#', $xip)) {

$ip = $xip;

break;

}

}

}

return $ip;

}

private function _init_db() {//初始化数据库

if($this->init_db) {

$driver = function_exists('mysql_connect') ? 'db_driver_mysql' : 'db_driver_mysqli';

if(getglobal('config/db/slave')) {//是否存在从数据连接，存在则初始化

$driver = function_exists('mysql_connect') ? 'db_driver_mysql_slave' : 'db_driver_mysqli_slave';

}

DB::init($driver, $this->config['db']);

}

}

private function _init_session() { //session初始化方法

$sessionclose = !empty($this->var['setting']['sessionclose']);

$this->session = $sessionclose ? new discuz_session_close() : new discuz_session();

if($this->init_session)  {

$this->session->init($this->var['cookie']['sid'], $this->var['clientip'], $this->var['uid']);

$this->var['sid'] = $this->session->sid; //设置sid

$this->var['session'] = $this->session->var;//设置session

//如果sid不为cookie中的sid,则重写sid到cookie

if(!empty($this->var['sid']) && $this->var['sid'] != $this->var['cookie']['sid']) {

dsetcookie('sid', $this->var['sid'], 86400);

}

if($this->session->isnew) {

//如果发现IP在禁止范围里，则设置该客户端用户组为6，则：禁止IP用户组

if(ipbanned($this->var['clientip'])) {

$this->session->set('groupid', 6);

}

}

if($this->session->get('groupid') == 6) {

$this->var['member']['groupid'] = 6;

if(!defined('IN_MOBILE_API')) {

sysmessage('user_banned');//提示IP禁止

} else {

mobile_core::result(array('error' => 'user_banned'));

}

}

//最近活动检测，600秒,如果用户在600秒里不活动，则设置最后访问时间点

if($this->var['uid'] && !$sessionclose && ($this->session->isnew || ($this->session->get('lastactivity') + 600) < TIMESTAMP)) {

$this->session->set('lastactivity', TIMESTAMP);

if($this->session->isnew) {

if($this->var['member']['lastip'] && $this->var['member']['lastvisit']) {

dsetcookie('lip', $this->var['member']['lastip'].','.$this->var['member']['lastvisit']);

}

C::t('common_member_status')->update($this->var['uid'], array('lastip' => $this->var['clientip'], 'port' => $this->var['remoteport'], 'lastvisit' => TIMESTAMP));

}

}

}

}

private function _init_user() {//用户初始化方法

if($this->init_user) {

//得到auth,username\tuid的加密信息

if($auth = getglobal('auth', 'cookie')) {

//进行解密

$auth = daddslashes(explode("\t", authcode($auth, 'DECODE')));

}

//得到用户名和用户密码，如果auth为空，或者缺失uid和username中的一个，则为空

list($discuz_pw, $discuz_uid) = empty($auth) || count($auth) < 2 ? array('', '') : $auth;

//如果uid存在，则得到该用户信息

if($discuz_uid) {

$user = getuserbyuid($discuz_uid, 1);

}

//如果用户存在，且密码正确，则用户信息写进全局变量中

if(!empty($user) && $user['password'] == $discuz_pw) {

if(isset($user['_inarchive'])) {

C::t('common_member_archive')->move_to_master($discuz_uid);

}

$this->var['member'] = $user;

} else {

$user = array();//user定义为空数组

$this->_init_guest();//否则为游客,游客初始化方法

}

//用户组过期检测

if($user && $user['groupexpiry'] > 0 && $user['groupexpiry'] < TIMESTAMP) {

$memberfieldforum = C::t('common_member_field_forum')->fetch($discuz_uid);

$groupterms = dunserialize($memberfieldforum['groupterms']);

if(!empty($groupterms['main'])) {

C::t("common_member")->update($user['uid'], array('groupexpiry'=> 0, 'groupid' => $groupterms['main']['groupid'], 'adminid' => $groupterms['main']['adminid']));

$user['groupid'] = $groupterms['main']['groupid'];

$user['adminid'] = $groupterms['main']['adminid'];

unset($groupterms['main'], $groupterms['ext'][$this->var['member']['groupid']]);

$this->var['member'] = $user;

C::t('common_member_field_forum')->update($discuz_uid, array('groupterms' => serialize($groupterms)));

} elseif((getgpc('mod') != 'spacecp' || CURSCRIPT != 'home') && CURSCRIPT != 'member') {

dheader('location: home.php?mod=spacecp&ac=usergroup&do=expiry');

}

}

if($user && $user['freeze'] && (getgpc('mod') != 'spacecp' && getgpc('mod') != 'misc'  || CURSCRIPT != 'home') && CURSCRIPT != 'member' && CURSCRIPT != 'misc') {

dheader('location: home.php?mod=spacecp&ac=profile&op=password');

}

//用户组数据缓存

$this->cachelist[] = 'usergroup_'.$this->var['member']['groupid'];

if($user && $user['adminid'] > 0 && $user['groupid'] != $user['adminid']) {

$this->cachelist[] = 'admingroup_'.$this->var['member']['adminid'];//管理员用户组缓存

}

} else {

$this->_init_guest(); //游客

}

setglobal('groupid', getglobal('groupid', 'member'));

!empty($this->cachelist) && loadcache($this->cachelist);

if($this->var['member'] && $this->var['group']['radminid'] == 0 && $this->var['member']['adminid'] > 0 && $this->var['member']['groupid'] != $this->var['member']['adminid'] && !empty($this->var['cache']['admingroup_'.$this->var['member']['adminid']])) {

$this->var['group'] = array_merge($this->var['group'], $this->var['cache']['admingroup_'.$this->var['member']['adminid']]);

}

if($this->var['group']['allowmakehtml'] && isset($_GET['_makehtml'])) {

$this->var['makehtml'] = 1;

$this->_init_guest();

loadcache(array('usergroup_7'));

$this->var['group'] = $this->var['cache']['usergroup_7'];

unset($this->var['inajax']);

}

if(empty($this->var['cookie']['lastvisit'])) {

$this->var['member']['lastvisit'] = TIMESTAMP - 3600;

dsetcookie('lastvisit', TIMESTAMP - 3600, 86400 * 30);//cookie中如果为记录最后访问时间，则写入

} else {

$this->var['member']['lastvisit'] = $this->var['cookie']['lastvisit'];//否则，写入全局变量

}

//以下四行是把用户的uid，用户名，管理组id，用户组写入全局变量中

setglobal('uid', getglobal('uid', 'member'));

setglobal('username', getglobal('username', 'member'));

setglobal('adminid', getglobal('adminid', 'member'));

setglobal('groupid', getglobal('groupid', 'member'));

if($this->var['member']['newprompt']) {

$this->var['member']['newprompt_num'] = C::t('common_member_newprompt')->fetch($this->var['member']['uid']);

$this->var['member']['newprompt_num'] = unserialize($this->var['member']['newprompt_num']['data']);

$this->var['member']['category_num'] = helper_notification::get_categorynum($this->var['member']['newprompt_num']);

}

}

private function _init_guest() {//游客初始化方法

$username = '';

$groupid = 7;

if(!empty($this->var['cookie']['con_auth_hash']) && ($openid = authcode($this->var['cookie']['con_auth_hash']))) {

$this->var['connectguest'] = 1;

$username = 'QQ_'.substr($openid, -6);

$this->var['setting']['cacheindexlife'] = 0;

$this->var['setting']['cachethreadlife'] = 0;

$groupid = $this->var['setting']['connect']['guest_groupid'] ? $this->var['setting']['connect']['guest_groupid'] : $this->var['setting']['newusergroupid'];

}

setglobal('member', array( 'uid' => 0, 'username' => $username, 'adminid' => 0, 'groupid' => $groupid, 'credits' => 0, 'timeoffset' => 9999));

}

private function _init_cron() { //计划任务初始化

$ext = empty($this->config['remote']['on']) || empty($this->config['remote']['cron']) || APPTYPEID == 200;

if($this->init_cron && $this->init_setting && $ext) {

if($this->var['cache']['cronnextrun'] <= TIMESTAMP) {

discuz_cron::run();//运行

}

}

}

private function _init_misc() {

if($this->config['security']['urlxssdefend'] && !defined('DISABLEXSSCHECK')) {

$this->_xss_check();

}

if(!$this->init_misc) {

return false;

}

lang('core');//加载core语言包

//设置用户时区timeoffset

if($this->init_setting && $this->init_user) {

if(!isset($this->var['member']['timeoffset']) || $this->var['member']['timeoffset'] == 9999 || $this->var['member']['timeoffset'] === '') {

$this->var['member']['timeoffset'] = $this->var['setting']['timeoffset'];

}

}

$timeoffset = $this->init_setting ? $this->var['member']['timeoffset'] : $this->var['setting']['timeoffset'];

$this->var['timenow'] = array(

'time' => dgmdate(TIMESTAMP),

'offset' => $timeoffset >= 0 ? ($timeoffset == 0 ? '' : '+'.$timeoffset) : $timeoffset

);

$this->timezone_set($timeoffset);

$this->var['formhash'] = formhash();//得到FORMHASH

define('FORMHASH', $this->var['formhash']);//定义为常量

if($this->init_user) {

$allowvisitflag = in_array(CURSCRIPT, array('member')) || defined('ALLOWGUEST') && ALLOWGUEST;

if($this->var['group'] && isset($this->var['group']['allowvisit']) && !$this->var['group']['allowvisit']) {

if($this->var['uid'] && !$allowvisitflag) {

if(!defined('IN_MOBILE_API')) {

showmessage('user_banned');//检测是否为禁止访问

} else {

mobile_core::result(array('error' => 'user_banned'));

}

} elseif((!defined('ALLOWGUEST') || !ALLOWGUEST) && !in_array(CURSCRIPT, array('member', 'api')) && !$this->var['inajax']) {

if(!defined('IN_MOBILE_API')) {

dheader('location: member.php?mod=logging&action=login&referer='.rawurlencode($this->var['siteurl'].$this->var['basefilename'].($_SERVER['QUERY_STRING'] ? '?'.$_SERVER['QUERY_STRING'] : '')));

} else {

mobile_core::result(array('error' => 'to_login'));

}

}

}

//如果用户状态为-1,则提示禁止访问

if(isset($this->var['member']['status']) && $this->var['member']['status'] == -1 && !$allowvisitflag) {

if(!defined('IN_MOBILE_API')) {

showmessage('user_banned');

} else {

mobile_core::result(array('error' => 'user_banned'));

}

}

}

//ip权限检测

if($this->var['setting']['ipaccess'] && !ipaccess($this->var['clientip'], $this->var['setting']['ipaccess'])) {

if(!defined('IN_MOBILE_API')) {

showmessage('user_banned');

} else {

mobile_core::result(array('error' => 'user_banned'));

}

}

//论坛如果为关闭，只有管理员可以访问，其他则提示关闭原因

if($this->var['setting']['bbclosed']) {

if($this->var['uid'] && ($this->var['group']['allowvisit'] == 2 || $this->var['groupid'] == 1)) {

} elseif(in_array(CURSCRIPT, array('admin', 'member', 'api')) || defined('ALLOWGUEST') && ALLOWGUEST) {

} else {

$closedreason = C::t('common_setting')->fetch('closedreason');

$closedreason = str_replace(':', ':', $closedreason);

if(!defined('IN_MOBILE_API')) {

showmessage($closedreason ? $closedreason : 'board_closed', NULL, array('adminemail' => $this->var['setting']['adminemail']), array('login' => 1));

} else {

mobile_core::result(array('error' => $closedreason ? $closedreason : 'board_closed'));

}

}

}

//私密板块访问设置

if(CURSCRIPT != 'admin' && !(in_array($this->var['mod'], array('logging', 'seccode')))) {

periodscheck('visitbanperiods');

}

//wap访问设置

if(defined('IN_MOBILE')) {

$this->var['tpp'] = $this->var['setting']['mobile']['mobiletopicperpage'] ? intval($this->var['setting']['mobile']['mobiletopicperpage']) : 20;

$this->var['ppp'] = $this->var['setting']['mobile']['mobilepostperpage'] ? intval($this->var['setting']['mobile']['mobilepostperpage']) : 5;

} else {

$this->var['tpp'] = $this->var['setting']['topicperpage'] ? intval($this->var['setting']['topicperpage']) : 20;

$this->var['ppp'] = $this->var['setting']['postperpage'] ? intval($this->var['setting']['postperpage']) : 10;

}

//以下五行作用是header cache状态设置

if($this->var['setting']['nocacheheaders']) {

@header("Expires: -1");

@header("Cache-Control: no-store, private, post-check=0, pre-check=0, max-age=0", FALSE);

@header("Pragma: no-cache");

}

if($this->session->isnew && $this->var['uid']) {

updatecreditbyaction('daylogin', $this->var['uid']);//每日登陆增加积分设置

include_once libfile('function/stat');

updatestat('login', 1);

if(defined('IN_MOBILE')) {

updatestat('mobilelogin', 1);

}

if($this->var['setting']['connect']['allow'] && $this->var['member']['conisbind']) {

updatestat('connectlogin', 1);

}

}

if(isset($this->var['member']['conisbind']) && $this->var['member']['conisbind'] && $this->var['setting'] && $this->var['setting']['connect']['newbiespan'] !== '') {

$this->var['setting']['newbiespan'] = $this->var['setting']['connect']['newbiespan'];

}

$lastact = TIMESTAMP."\t".dhtmlspecialchars(basename($this->var['PHP_SELF']))."\t".dhtmlspecialchars($this->var['mod']);

dsetcookie('lastact', $lastact, 86400);

setglobal('currenturl_encode', base64_encode('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']));

if((!empty($_GET['fromuid']) || !empty($_GET['fromuser'])) && ($this->var['setting']['creditspolicy']['promotion_visit'] || $this->var['setting']['creditspolicy']['promotion_register'])) {

require_once libfile('misc/promotion', 'include');

}

//SEO keywords

$this->var['seokeywords'] = !empty($this->var['setting']['seokeywords'][CURSCRIPT]) ? $this->var['setting']['seokeywords'][CURSCRIPT] : '';

//SEO 网站描述

$this->var['seodescription'] = !empty($this->var['setting']['seodescription'][CURSCRIPT]) ? $this->var['setting']['seodescription'][CURSCRIPT] : '';

}

private function _init_setting() {

if($this->init_setting) {

if(empty($this->var['setting'])) {

$this->cachelist[] = 'setting';//缓存设置文件

}

if(empty($this->var['style'])) {

$this->cachelist[] = 'style_default';//风格缓存设置

}

if(!isset($this->var['cache']['cronnextrun'])) {

$this->cachelist[] = 'cronnextrun';//缓存计划任务

}

}

!empty($this->cachelist) && loadcache($this->cachelist);

if(!is_array($this->var['setting'])) {

$this->var['setting'] = array();

}

}

public function _init_style() { //模板初始化方法

if(defined('IN_MOBILE')) {

$mobile = max(1, intval(IN_MOBILE));

if($mobile && $this->var['setting']['styleid'.$mobile]) {

$styleid = $this->var['setting']['styleid'.$mobile];

}

} else {

$styleid = !empty($this->var['cookie']['styleid']) ? $this->var['cookie']['styleid'] : 0;

}

if(intval(!empty($this->var['forum']['styleid']))) {

$this->var['cache']['style_default']['styleid'] = $styleid = $this->var['forum']['styleid'];

} elseif(intval(!empty($this->var['category']['styleid']))) {

$this->var['cache']['style_default']['styleid'] = $styleid = $this->var['category']['styleid'];

}

$styleid = intval($styleid);

if($styleid && $styleid != $this->var['setting']['styleid']) {

loadcache('style_'.$styleid);

if($this->var['cache']['style_'.$styleid]) {

$this->var['style'] = $this->var['cache']['style_'.$styleid];

}

}

define('IMGDIR', $this->var['style']['imgdir']);

define('STYLEID', $this->var['style']['styleid']);

define('VERHASH', $this->var['style']['verhash']);

define('TPLDIR', $this->var['style']['tpldir']);

define('TEMPLATEID', $this->var['style']['templateid']);

}

private function _init_mobile() {  //手机访问设置

if(!$this->init_mobile) {

return false;

}

//允许手机访问

if(!$this->var['setting'] || !$this->var['setting']['mobile']['allowmobile'] || !is_array($this->var['setting']['mobile']) || IS_ROBOT) {

$nomobile = true;

$unallowmobile = true;

}

$mobile = getgpc('mobile');

$mobileflag = isset($this->var['mobiletpl'][$mobile]);

if($mobile === 'no') {

dsetcookie('mobile', 'no', 3600);

$nomobile = true;

} elseif($this->var['cookie']['mobile'] == 'no' && $mobileflag) {

checkmobile();//检测是否为手机访问

dsetcookie('mobile', '');

} elseif($this->var['cookie']['mobile'] == 'no') {

$nomobile = true;

} elseif(!($mobile_ = checkmobile())) {

$nomobile = true;

} elseif(!$mobile) {

$mobile = isset($mobile_) ? $mobile_ : 1;

}

if(!$this->var['mobile'] && !$unallowmobile) {

if($mobileflag) {

dheader("Location:misc.php?mod=mobile");

}

}

if($nomobile || (!$this->var['setting']['mobile']['mobileforward'] && !$mobileflag)) {

if($_SERVER['HTTP_HOST'] == $this->var['setting']['domain']['app']['mobile'] && $this->var['setting']['domain']['app']['default']) {

dheader("Location:http://".$this->var['setting']['domain']['app']['default'].$_SERVER['REQUEST_URI']);

return false;

} else {

return false;

}

}

if(strpos($this->var['setting']['domain']['defaultindex'], CURSCRIPT) !== false && CURSCRIPT != 'forum' && !$_GET['mod']) {

if($this->var['setting']['domain']['app']['mobile']) {

$mobileurl = 'http://'.$this->var['setting']['domain']['app']['mobile'];

} else {

if($this->var['setting']['domain']['app']['forum']) {

$mobileurl = 'http://'.$this->var['setting']['domain']['app']['forum'].'?mobile=yes';

} else {

$mobileurl = $this->var['siteurl'].'forum.php?mobile=yes';

}

}

dheader("location:$mobileurl");

}

if($mobile === '3' && empty($this->var['setting']['mobile']['wml'])) {

return false;

}

define('IN_MOBILE', isset($this->var['mobiletpl'][$mobile]) ? $mobile : '2');

setglobal('gzipcompress', 0);

$arr = array();

foreach(array_keys($this->var['mobiletpl']) as $mobiletype) {

$arr[] = '&mobile='.$mobiletype;

$arr[] = 'mobile='.$mobiletype;

}

$arr = array_merge(array(strstr($_SERVER['QUERY_STRING'], '&simpletype'), strstr($_SERVER['QUERY_STRING'], 'simpletype')), $arr);

$query_sting_tmp = str_replace($arr, '', $_SERVER['QUERY_STRING']);

$this->var['setting']['mobile']['nomobileurl'] = ($this->var['setting']['domain']['app']['forum'] ? 'http://'.$this->var['setting']['domain']['app']['forum'].'/' : $this->var['siteurl']).$this->var['basefilename'].($query_sting_tmp ? '?'.$query_sting_tmp.'&' : '?').'mobile=no';

$this->var['setting']['lazyload'] = 0;

if('utf-8' != CHARSET) {

if(strtolower($_SERVER['REQUEST_METHOD']) === 'post') {

foreach($_POST AS $pk => $pv) {

if(!is_numeric($pv)) {

$_GET[$pk] = $_POST[$pk] = $this->mobile_iconv_recurrence($pv);

if(!empty($this->var['config']['input']['compatible'])) {

$this->var['gp_'.$pk] = daddslashes($_GET[$pk]);

}

}

}

}

}

if(!$this->var['setting']['mobile']['mobilesimpletype']) {

$this->var['setting']['imagemaxwidth'] = 224;

}

$this->var['setting']['regstatus'] = $this->var['setting']['mobile']['mobileregister'] ? $this->var['setting']['regstatus'] : 0 ;

$this->var['setting']['thumbquality'] = 50;

$this->var['setting']['avatarmethod'] = 0;

$this->var['setting']['mobile']['simpletypeurl'] = array();

$this->var['setting']['mobile']['simpletypeurl'][0] = $this->var['siteurl'].$this->var['basefilename'].($query_sting_tmp ? '?'.$query_sting_tmp.'&' : '?').'mobile=1&simpletype=no';

$this->var['setting']['mobile']['simpletypeurl'][1] =  $this->var['siteurl'].$this->var['basefilename'].($query_sting_tmp ? '?'.$query_sting_tmp.'&' : '?').'mobile=1&simpletype=yes';

$this->var['setting']['mobile']['simpletypeurl'][2] =  $this->var['siteurl'].$this->var['basefilename'].($query_sting_tmp ? '?'.$query_sting_tmp.'&' : '?').'mobile=2';

unset($query_sting_tmp);

ob_start();

}

public function timezone_set($timeoffset = 0) {//时区设置

if(function_exists('date_default_timezone_set')) {

@date_default_timezone_set('Etc/GMT'.($timeoffset > 0 ? '-' : '+').(abs($timeoffset)));

}

}

public function mobile_iconv_recurrence($value) {//手机访问再次转码

if(is_array($value)) {

foreach($value AS $key => $val) {

$value[$key] = $this->mobile_iconv_recurrence($val);

}

} else {

$value = diconv($value, 'utf-8', CHARSET);

}

return $value;

}

}

?>