Discuz! X2 核心类源码分析-discuz_core
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<?php /** * [Discuz!] (C)2001-2099 Comsenz Inc. * This is NOT a freeware, use is subject to license terms * * $Id: class_core.php 21271 2011-03-22 02:44:58Z congyushuai $ */ define('IN_DISCUZ', true); error_reporting(0); class discuz_core { var $db = null; var $mem = null; var $session = null; var $config = array(); var $var = array(); var $cachelist = array(); var $init_setting = true; var $init_user = true; var $init_session = true; var $init_cron = true; var $init_misc = true; var $init_memory = true; var $init_mobile = true; var $initated = false; //初始化工作未完成标志 var $superglobal = array( 'GLOBALS' => 1, '_GET' => 1, '_POST' => 1, '_REQUEST' => 1, '_COOKIE' => 1, '_SERVER' => 1, '_ENV' => 1, '_FILES' => 1, ); function &instance() { static $object; if(empty($object)) { $object = new discuz_core(); } return $object; } function discuz_core() { $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 $this->_init_output(); //初始化输出 } function init() { if(!$this->initated) { $this->_init_db(); //初始化数据库 $this->_init_memory(); //初始化memcache $this->_init_user(); //用户信息初始化 $this->_init_session(); //session操作初始化 $this->_init_setting(); //系统设置初始化 $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 } function _init_env() { //环境变量初始化方法 error_reporting(E_ERROR); //定义错误报告等级 if(phpversion() < '5.3.0') { set_magic_quotes_runtime(0); //设置set_magic_quotes_runtime } define('DISCUZ_ROOT', substr(dirname(__FILE__), 0, -12)); //定义根目录常量 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(); if(!defined('DISCUZ_CORE_FUNCTION') && !@include(DISCUZ_ROOT.'./source/function/function_core.php')) { exit('function_core.php is missing'); //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(function_exists('ini_get')) { $memorylimit = @ini_get('memory_limit'); if($memorylimit && return_bytes($memorylimit) < 33554432 && function_exists('ini_set')) { ini_set('memory_limit', '128m'); } } //以上6行代码的作用是设置内存使用限制，如果小于32M,则增加为128M，因为memory_limit小于32M，可能会不够用，毕竟X系统比较大，可能内存会使用的多点，如果不支持ini_set函数，就得去php.ini中修改了。 define('IS_ROBOT', checkrobot()); //检测机器人 foreach ($GLOBALS as $key => $value) { if (!isset($this->superglobal[$key])) { $GLOBALS[$key] = null; unset($GLOBALS[$key]); } } //以上几行的意思是，注销所有的超级变量。 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 'timestamp' => TIMESTAMP, //时间戳 'starttime' => dmicrotime(), //开始时间 'clientip' => $this->_get_client_ip(), //客户端IP 'referer' => '', //referer地址 'charset' => '', //字符串编码 'gzipcompress' => '', //gzip 'authkey' => '', //authkey 认证码 'timenow' => array(), //当前时间 'PHP_SELF' => '', //PHP_SELF 'siteurl' => '', //网站地址 'siteroot' => '', //网站根目录 'config' => array(), //配置变量数组 'setting' => array(), //设置变量数组 'member' => array(), //用户信息数组 'group' => array(), //用户组数组 'cookie' => array(), //cookie数组 'style' => array(), //风格数组 'cache' => array(), //缓存列表数组 'session' => array(), //session变量数组 'lang' => array(), //语言包数组 'my_app' => array(), //我的应用数组 'my_userapp' => array(), //用户应用数组 'fid' => 0, 'tid' => 0, 'forum' => array(), //论坛板块数组 'thread' => array(), //论坛相关帖子数组 'rssauth' => '', //RSS订阅认证 'home' => array(), //home功能相关数组 'space' => array(), //space功能相关数组 'block' => array(), //块信息数组 'article' => array(), 'action' => array( 'action' => APPTYPEID, 'fid' => 0, 'tid' => 0, ), 'mobile' => '', //手机信息 ); //以上定义了$_G超级变量的部分内容。都是系统以后要用到的。写在一个大数组中，方便使用 $_G['PHP_SELF'] = htmlspecialchars($_SERVER['SCRIPT_NAME'] ? $_SERVER['SCRIPT_NAME'] : $_SERVER['PHP_SELF']); //当前脚本地址写入$_G超级变量中 $_G['basescript'] = CURSCRIPT; //当前脚本 $_G['basefilename'] = basename($_G['PHP_SELF']); //当前脚本名称 $_G['siteurl'] = htmlspecialchars('http://'.$_SERVER['HTTP_HOST'].preg_replace("/\/+(api)?\/*$/i", '', substr($_G['PHP_SELF'], 0, strrpos($_G['PHP_SELF'], '/'))).'/');//网站地址 $_G['siteroot'] = substr($_G['PHP_SELF'], 0, -strlen($_G['basefilename']));//网站根地址 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 = & $_G; } function _init_input() { //输入初始化方法 if (isset($_GET['GLOBALS']) ||isset($_POST['GLOBALS']) || isset($_COOKIE['GLOBALS']) || isset($_FILES['GLOBALS'])) { system_error('request_tainting'); } if(!MAGIC_QUOTES_GPC) { $_GET = daddslashes($_GET); $_POST = daddslashes($_POST); $_COOKIE = daddslashes($_COOKIE); $_FILES = daddslashes($_FILES); } //以上代码未GPC安全机制，进行转义 $prelength = strlen($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; } } //以上代码意思是，如果cookie的键值等于定义的键值，那么截取cookiepre $_GET['diy'] = empty($_GET['diy']) ? '' : $_GET['diy']; if($_SERVER['REQUEST_METHOD'] == 'POST' && !empty($_POST)) { $_GET = array_merge($_GET, $_POST); } //合并$_POST,$_GET foreach($_GET as $k => $v) { $this->var['gp_'.$k] = $v; } //然后把$_POST和$_GET的值都赋予gp变量中,方便使用 $this->var['mod'] = empty($this->var['gp_mod']) ? '' : htmlspecialchars($this->var['gp_mod']); //获得$mod变量 ?mod=xxx,则$this->var['mod']为xxx $this->var['inajax'] = empty($this->var['gp_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)); //是否需要ajax方式 $this->var['page'] = empty($this->var['gp_page']) ? 1 : max(1, intval($this->var['gp_page'])); //页面获取,最小为1 $this->var['sid'] = $this->var['cookie']['sid'] = isset($this->var['cookie']['sid']) ? htmlspecialchars($this->var['cookie']['sid']) : ''; //sid获取 } function _init_config() { //获得配置文件 $_config = array(); @include DISCUZ_ROOT.'./config/config_global.php';//加载全局配置文件 if(empty($_config)) { if(!file_exists(DISCUZ_ROOT.'./data/install.lock')) { header('location: install'); exit; } else { system_error('config_notfound'); } } //以上代码为：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['security']['authkey'])) { $_config['security']['authkey'] = md5($_config['cookie']['cookiepre'].$_config['db'][1]['dbname']); } //设置安全验证的authkey if(empty($_config['debug']) || !file_exists(libfile('function/debug'))) { define('DISCUZ_DEBUG', false); } elseif($_config['debug'] === 1 || $_config['debug'] === 2 || !empty($_REQUEST['debug']) && $_REQUEST['debug'] === $_config['debug']) { define('DISCUZ_DEBUG', true); if($_config['debug'] == 2) { error_reporting(E_ALL); } } else { define('DISCUZ_DEBUG', false); } //以上代码为是否调试模式， define('STATICURL', !empty($_config['output']['staticurl']) ? $_config['output']['staticurl'] : 'static/'); //定义静态文件常量,如：css,img等，如果$_config['output']['staticurl']为空，则是默认的static目录，就是默认目录 $this->var['staticurl'] = STATICURL; $this->config = & $_config; $this->var['config'] = & $_config; //引用$_config变量，改变$this->config,则$_config改变，保持统一 if(substr($_config['cookie']['cookiepath'], 0, 1) != '/') { $this->var['config']['cookie']['cookiepath'] = '/'.$this->var['config']['cookie']['cookiepath']; } //设置cookie域，一般是设置目录域。/不存在则加上/,安全性更高 $this->var['config']['cookie']['cookiepre'] = $this->var['config']['cookie']['cookiepre'].substr(md5($this->var['config']['cookie']['cookiepath'].'|'.$this->var['config']['cookie']['cookiedomain']), 0, 4).'_'; //定义cookie前缀,如定义为xxx_;则为$cookie['xxx_uid] $this->var['authkey'] = md5($_config['security']['authkey'].$_SERVER['HTTP_USER_AGENT']); //得到authkey } function _init_output() { //输出初始化方法 if($this->config['security']['urlxssdefend'] && $_SERVER['REQUEST_METHOD'] == 'GET' && !empty($_SERVER['REQUEST_URI'])) { $this->_xss_check(); } if($this->config['security']['attackevasive'] && (!defined('CURSCRIPT') || !in_array($this->var['mod'], array('seccode', 'secqaa', 'swfupload')))) { require_once libfile('misc/security', 'include'); } //验证码设置，加载include/misc/misc_security.php文件,验证功能; if(!empty($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') === false) { $this->config['output']['gzip'] = false; } //是否开启gzip,如果不支持gzip，则定义为false $allowgzip = $this->config['output']['gzip'] && empty($this->var['inajax']) && $this->var['mod'] != 'attachment' && EXT_OBGZIP; setglobal('gzipcompress', $allowgzip); //把$allowgzip写入全局变量中 ob_start($allowgzip ? 'ob_gzhandler' : null); //定义输出缓存 setglobal('charset', $this->config['output']['charset']); //把配置文件中的字符集赋予全局变量中 define('CHARSET', $this->config['output']['charset']); if($this->config['output']['forceheader']) { @header('Content-Type: text/html; charset='.CHARSET);//设置网页编码,强制输出 } } 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")); } } function _xss_check() { //检测xss漏洞,UBB $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI']))); if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($tmp,'CONTENT-TRANSFER-ENCODING')!==false) { system_error('request_tainting'); } return true; } 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; } function _init_db() { //初始化数据库 $class = 'db_mysql'; if(count(getglobal('config/db/slave'))) { //是否存在从数据连接，存在则初始化 require_once libfile('class/mysql_slave'); $class = 'db_mysql_slave'; } $this->db = & DB::object($class); $this->db->set_config($this->config['db']); $this->db->connect(); //建立数据库连接 } function _init_session() { //session初始化方法 $this->session = new discuz_session(); //new discuz_session类 if($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'] = $this->session->var; //设置session if($this->var['sid'] != $this->var['cookie']['sid']) { dsetcookie('sid', $this->var['sid'], 86400); //如果sid不为cookie中的sid,则重写sid到cookie } if($this->session->isnew) { if(ipbanned($this->var['clientip'])) { $this->session->set('groupid', 6); //如果发现IP在禁止范围里，则设置该客户端用户组为6，则：禁止IP用户组 } } if($this->session->get('groupid') == 6) { $this->var['member']['groupid'] = 6; sysmessage('user_banned'); //提示IP禁止 } if($this->var['uid'] && ($this->session->isnew || ($this->session->get('lastactivity') + 600) < TIMESTAMP)) { $this->session->set('lastactivity', TIMESTAMP); //最近活动检测，600秒 if($this->session->isnew) { DB::update('common_member_status', array('lastip' => $this->var['clientip'], 'lastvisit' => TIMESTAMP), "uid='".$this->var['uid']."'"); } //如果用户在600秒里不活动，则设置最后访问时间点 } } } function _init_user() { //用户初始化方法 if($this->init_user) { if($auth = getglobal('auth', 'cookie')) { //得到auth,username\tuid的加密信息 $auth = daddslashes(explode("\t", authcode($auth, 'DECODE'))); //进行解密 } list($discuz_pw, $discuz_uid) = empty($auth) || count($auth) < 2 ? array('', '') : $auth; //得到用户名和用户密码，如果auth为空，或者缺失uid和username中的一个，则为空 if($discuz_uid) { $user = getuserbyuid($discuz_uid); //如果uid存在，则得到该用户信息 } if(!empty($user) && $user['password'] == $discuz_pw) { $this->var['member'] = $user; //如果用户存在，且密码正确，则用户信息写进全局变量中 } else { $user = array(); //user定义为空数组 $this->_init_guest(); //否则为游客,游客初始化方法 } if($user && $user['groupexpiry'] > 0 && $user['groupexpiry'] < TIMESTAMP && getgpc('mod') != 'spacecp' && getgpc('do') != 'expiry' && CURSCRIPT != 'home') { dheader('location: home.php?mod=spacecp&ac=usergroup&do=expiry'); } //用户组过期检测 $this->cachelist[] = 'usergroup_'.$this->var['member']['groupid']; //用户组数据缓存 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 { $this->_init_guest(); //游客 } if(empty($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'] = $this->var['cookie']['lastvisit'];//否则，写入全局变量 } setglobal('uid', getglobal('uid', 'member')); setglobal('username', addslashes(getglobal('username', 'member'))); setglobal('adminid', getglobal('adminid', 'member')); setglobal('groupid', getglobal('groupid', 'member')); //以上四行是把用户的uid，用户名，管理组id，用户组写入全局变量中 } function _init_guest() { //游客初始化方法 setglobal('member', array( 'uid' => 0, 'username' => '', 'adminid' => 0, 'groupid' => 7, 'credits' => 0, 'timeoffset' => 9999)); } function _init_cron() { //计划任务初始化 if($this->init_cron && $this->init_setting) { if($this->var['cache']['cronnextrun'] <= TIMESTAMP) { require_once libfile('class/cron'); //加载source/class/class_cron.php文件 discuz_cron::run(); //运行 } } } function _init_misc() { if(!$this->init_misc) { return false; } lang('core'); //加载core语言包 if($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']; } } //设置用户时区 $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) { if($this->var['group'] && isset($this->var['group']['allowvisit']) && !$this->var['group']['allowvisit']) { if($this->var['uid']) { sysmessage('user_banned', null); //检测是否为禁止访问 } elseif((!defined('ALLOWGUEST') || !ALLOWGUEST) && !in_array(CURSCRIPT, array('member', 'api')) && !$this->var['inajax']) { dheader('location: member.php?mod=logging&action=login&referer='.rawurlencode($_SERVER['REQUEST_URI'])); } } if($this->var['member']['status'] == -1) { sysmessage('user_banned', null); //如果用户状态为-1,则提示禁止访问 } } if($this->var['setting']['ipaccess'] && !ipaccess($this->var['clientip'], $this->var['setting']['ipaccess'])) { sysmessage('user_banned', null); //ip权限检测 } if($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 = DB::result_first("SELECT svalue FROM ".DB::table('common_setting')." WHERE skey='closedreason'"); $closedreason = str_replace(':', ':', $closedreason); showmessage($closedreason ? $closedreason : 'board_closed', NULL, array(), array('login' => 1)); } } //以上是论坛如果为关闭，只有管理员可以访问，其他则提示关闭原因 if(CURSCRIPT != 'admin' && !(in_array($this->var['mod'], array('logging', 'seccode')))) { periodscheck('visitbanperiods'); //私密板块访问设置 } 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; } //wap访问设置 if($this->var['setting']['nocacheheaders']) { @header("Expires: -1"); @header("Cache-Control: no-store, private, post-check=0, pre-check=0, max-age=0", FALSE); @header("Pragma: no-cache"); } //以上五行作用是header cache状态设置 if($this->session->isnew && $this->var['uid']) { updatecreditbyaction('daylogin', $this->var['uid']); //每日登陆增加积分设置 include_once libfile('function/stat'); updatestat('login', 1); if(defined('IN_MOBILE')) { updatestat('mobilelogin', 1); //MOBILE } if($this->var['setting']['connect']['allow'] && $this->var['member']['conisbind']) { updatestat('connectlogin', 1); } } if($this->var['member']['conisbind'] && $this->var['setting']['connect']['newbiespan'] !== '') { $this->var['setting']['newbiespan'] = $this->var['setting']['connect']['newbiespan']; } $lastact = TIMESTAMP."\t".htmlspecialchars(basename($this->var['PHP_SELF']))."\t".htmlspecialchars($this->var['mod']); dsetcookie('lastact', $lastact, 86400); setglobal('currenturl_encode', base64_encode('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'])); //设置最后动作 if($this->var['setting']['magicstatus'] && !$this->var['group']['allowmagics']) { $this->var['setting']['magicstatus'] = false; $this->var['setting']['magics'] = array(); unset($this->var['setting']['spacenavs']['magic']); } if((!empty($this->var['gp_fromuid']) || !empty($this->var['gp_fromuser'])) && ($this->var['setting']['creditspolicy']['promotion_visit'] || $this->var['setting']['creditspolicy']['promotion_register'])) { require_once libfile('misc/promotion', 'include'); } $this->var['seokeywords'] = !empty($this->var['setting']['seokeywords'][CURSCRIPT]) ? $this->var['setting']['seokeywords'][CURSCRIPT] : ''; //SEO keywords $this->var['seodescription'] = !empty($this->var['setting']['seodescription'][CURSCRIPT]) ? $this->var['setting']['seodescription'][CURSCRIPT] : ''; //SEO 网站描述 } function _init_setting() { if($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'])) { $this->var['setting'] = array(); } if($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']]); } } function _init_style() { //模板初始化方法 $styleid = !empty($this->var['cookie']['styleid']) ? $this->var['cookie']['styleid'] : 0; if(intval(!empty($this->var['forum']['styleid']))) { $this->var['cache']['style_default']['styleid'] = $styleid = $this->var['forum']['styleid']; } if(intval(!empty($this->var['category']['styleid']))) { $this->var['cache']['style_default']['styleid'] = $styleid = $this->var['category']['styleid']; } if($styleid && $styleid != $this->var['setting']['styleid']) { loadcache('style_'.$styleid); if($this->var['cache']['style_'.$styleid]) { $this->var['style'] = $this->var['cache']['style_'.$styleid]; } } if(is_array($this->var['style'])) { foreach ($this->var['style'] as $key => $val) { $key = strtoupper($key); if(!defined($key) && !is_array($val)) { define($key, $val); } } } } function _init_memory() { //缓存设置 $this->mem = new discuz_memory(); if($this->init_memory) { $this->mem->init($this->config['memory']); } $this->var['memory'] = $this->mem->type; } function _init_mobile() { //手机访问设置 if(!$this->var['setting'] || !$this->init_mobile || !$this->var['setting']['mobile']['allowmobile'] || !is_array($this->var['setting']['mobile']) || IS_ROBOT) { $nomobile = true; //允许手机访问 } if($_GET['mobile'] === 'no') { dsetcookie('mobile', 'no', 3600); $nomobile = true; } elseif($this->var['cookie']['mobile'] == 'no' && $_GET['mobile'] === 'yes') { dsetcookie('mobile', ''); } elseif($this->var['cookie']['mobile'] == 'no') { $nomobile = true; } if(!checkmobile()) { //检测是否为手机访问 $nomobile = true; } if((!$this->var['setting']['mobile']['mobileforward'] && $_GET['mobile'] !== 'yes') || $nomobile) { if($_SERVER['HTTP_HOST'] == $this->var['setting']['domain']['app']['mobile'] && $this->var['setting']['domain']['app']['default']) { dheader("Location:http://".$this->var['setting']['domain']['app']['default'].$_SERVER['REQUEST_URI']); } else { return; } } if(strpos($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"); } define('IN_MOBILE', true); setglobal('gzipcompress', 0); $query_sting_tmp = preg_replace(array('/&simpletype=\w+/', '/simpletype=\w+/', '/&mobile=yes/', '/mobile=yes/'), array(), $_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)) { $this->var['gp_'.$pk] = $_GET[$pk] = $_POST[$pk] = $this->mobile_iconv_recurrence($pv); } } } } if($_GET['simpletype']) { if($_GET['simpletype'] == 'yes') { $this->var['setting']['mobile']['mobilesimpletype'] = 1; dsetcookie('simpletype', 1, 86400); } else { $this->var['setting']['mobile']['mobilesimpletype'] = 0; dsetcookie('simpletype', 0, 86400); } } elseif($this->var['cookie']['simpletype']) { $this->var['setting']['mobile']['mobilesimpletype'] = $this->var['cookie']['simpletype'] == 1 ? 1 : 0 ; } if(!$this->var['setting']['mobile']['mobilesimpletype']) { $this->var['setting']['imagemaxwidth'] = 224; } $this->var['setting']['regstatus'] = $this->var['setting']['mobile']['mobileregister'] ? $this->var['setting']['regstatus'] : 0 ; if(!$this->var['setting']['mobile']['mobileseccode']) { $this->var['setting']['seccodestatus'] = 0; } $this->var['setting']['seccodedata']['type'] = 99; $this->var['setting']['thumbquality'] = 50; $this->var['setting']['mobile']['simpletypeurl'] = array(); $this->var['setting']['mobile']['simpletypeurl'][0] = $this->var['siteurl'].$this->var['basefilename'].($query_sting_tmp ? '?'.$query_sting_tmp.'&' : '?').'simpletype=no&mobile=yes' ; $this->var['setting']['mobile']['simpletypeurl'][1] = $this->var['siteurl'].$this->var['basefilename'].($query_sting_tmp ? '?'.$query_sting_tmp.'&' : '?').'simpletype=yes&mobile=yes'; unset($query_sting_tmp); ob_start(); } function timezone_set($timeoffset = 0) { //时区设置 if(function_exists('date_default_timezone_set')) { @date_default_timezone_set('Etc/GMT'.($timeoffset > 0 ? '-' : '+').(abs($timeoffset))); } } 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 { $value = daddslashes(diconv(stripslashes($value), 'utf-8', CHARSET)); } return $value; } } class db_mysql //数据库类 { var $tablepre; var $version = ''; var $querynum = 0; var $slaveid = 0; var $curlink; var $link = array(); var $config = array(); var $sqldebug = array(); var $map = array(); function db_mysql($config = array()) { if(!empty($config)) { $this->set_config($config); } } function set_config($config) { $this->config = &$config; $this->tablepre = $config['1']['tablepre']; if(!empty($this->config['map'])) { $this->map = $this->config['map']; } } function connect($serverid = 1) { if(empty($this->config) || empty($this->config[$serverid])) { $this->halt('config_db_not_found'); } $this->link[$serverid] = $this->_dbconnect( $this->config[$serverid]['dbhost'], $this->config[$serverid]['dbuser'], $this->config[$serverid]['dbpw'], $this->config[$serverid]['dbcharset'], $this->config[$serverid]['dbname'], $this->config[$serverid]['pconnect'] ); $this->curlink = $this->link[$serverid]; } function _dbconnect($dbhost, $dbuser, $dbpw, $dbcharset, $dbname, $pconnect) { $link = null; $func = empty($pconnect) ? 'mysql_connect' : 'mysql_pconnect'; if(!$link = @$func($dbhost, $dbuser, $dbpw, 1)) { $this->halt('notconnect'); } else { $this->curlink = $link; if($this->version() > '4.1') { $dbcharset = $dbcharset ? $dbcharset : $this->config[1]['dbcharset']; $serverset = $dbcharset ? 'character_set_connection='.$dbcharset.', character_set_results='.$dbcharset.', character_set_client=binary' : ''; $serverset .= $this->version() > '5.0.1' ? ((empty($serverset) ? '' : ',').'sql_mode=\'\'') : ''; $serverset && mysql_query("SET $serverset", $link); } $dbname && @mysql_select_db($dbname, $link); } return $link; } function table_name($tablename) { if(!empty($this->map) && !empty($this->map[$tablename])) { $id = $this->map[$tablename]; if(!$this->link[$id]) { $this->connect($id); } $this->curlink = $this->link[$id]; } else { $this->curlink = $this->link[1]; } return $this->tablepre.$tablename; } function select_db($dbname) { return mysql_select_db($dbname, $this->curlink); } function fetch_array($query, $result_type = MYSQL_ASSOC) { return mysql_fetch_array($query, $result_type); } function fetch_first($sql) { return $this->fetch_array($this->query($sql)); } function result_first($sql) { return $this->result($this->query($sql), 0); } function query($sql, $type = '') { if(defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) { $starttime = dmicrotime(); } $func = $type == 'UNBUFFERED' && @function_exists('mysql_unbuffered_query') ? 'mysql_unbuffered_query' : 'mysql_query'; if(!($query = $func($sql, $this->curlink))) { if(in_array($this->errno(), array(2006, 2013)) && substr($type, 0, 5) != 'RETRY') { $this->connect(); return $this->query($sql, 'RETRY'.$type); } if($type != 'SILENT' && substr($type, 5) != 'SILENT') { $this->halt('query_error', $sql); } } if(defined('DISCUZ_DEBUG') && DISCUZ_DEBUG) { $this->sqldebug[] = array($sql, number_format((dmicrotime() - $starttime), 6), debug_backtrace()); } $this->querynum++; return $query; } function affected_rows() { return mysql_affected_rows($this->curlink); } function error() { return (($this->curlink) ? mysql_error($this->curlink) : mysql_error()); } function errno() { return intval(($this->curlink) ? mysql_errno($this->curlink) : mysql_errno()); } function result($query, $row = 0) { $query = @mysql_result($query, $row); return $query; } function num_rows($query) { $query = mysql_num_rows($query); return $query; } function num_fields($query) { return mysql_num_fields($query); } function free_result($query) { return mysql_free_result($query); } function insert_id() { return ($id = mysql_insert_id($this->curlink)) >= 0 ? $id : $this->result($this->query("SELECT last_insert_id()"), 0); } function fetch_row($query) { $query = mysql_fetch_row($query); return $query; } function fetch_fields($query) { return mysql_fetch_field($query); } function version() { if(empty($this->version)) { $this->version = mysql_get_server_info($this->curlink); } return $this->version; } function close() { return mysql_close($this->curlink); } function halt($message = '', $sql = '') { require_once libfile('class/error'); discuz_error::db_error($message, $sql); } } class DB //数据库操作 class discuz_session //session类 class discuz_memory //缓存初始化 支持eaccelerator/xcach/memcache ?> |
