从单点入口的一个追溯

<?php
/**
    * common公用文件
    * @author muhongwei
    * @copyright            (C) 2009-2011 DirCMS
    * @lastmodify            2011-11-28 13:04
*/
error_reporting (E_ALL & ~E_NOTICE & ~E_WARNING);

define('DIRCMS_ROOT', str_replace("\", '/', substr(dirname(__FILE__), 0, -7)));
define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());

if(PHP_VERSION < '5.3')
{
    set_magic_quotes_runtime(0);
}
else
{
    ini_set('magic_quotes_runtime',0);
}
unset($LANG, $HTTP_ENV_VARS, $HTTP_POST_VARS, $HTTP_GET_VARS, $HTTP_POST_FILES, $HTTP_COOKIE_VARS,$baselang);

include_once(DIRCMS_ROOT.'data/config.inc.php');
header("Content-type:text/html;charset=".DB_CHARSET);
date_default_timezone_set('Etc/GMT-'.TIMEDF);
define('TIME',time());

/*
    Zip优化
*/
if(GZIP && extension_loaded('zlib') && function_exists('ob_gzhandler') && function_exists('ob_start'))
{
    ob_start('ob_gzhandler');
}
else
{
    ob_start();
}

include_once('global.func.php');
define('IP',getIp());
define('IPADDRESS',ip2area(IP));
define('CURURL',getcururl());
$lang=cache_read('lang.inc.php',DIRCMS_ROOT.'data/lang/'.LANG.'/');

/*
    数据库
*/
include_once('mysql.class.php');
$db=new mysql();
$db->connect(DB_HOST,DB_USER,DB_PSW,DB_NAME,DB_PCONNECT,DB_CHARSET);

/*
    站群
*/
if(defined('DIRCMS_MANAGE'))
{
    $siteid=get_cookie('adminsiteid') && intval(get_cookie('adminsiteid'))?intval(get_cookie('adminsiteid')):1;
}
else
{
    $siteid=isset($_GET['siteid']) && intval($_GET['siteid'])?intval($_GET['siteid']):(get_cookie('siteid') && intval(get_cookie('siteid'))?intval(get_cookie('siteid')):1);
}

include_once('sitecrowd.class.php');
$sitecrowdobj=new sitecrowd();
$dir_allcrowd=$allcrowd=$sitecrowdobj->allcrowd();
$childsite=$sitecrowdobj->sitecrowdinfo($siteid);
define('SITEID',$childsite?$siteid:1);
if(!$childsite)
{
    $childsite=$sitecrowdobj->sitecrowdinfo(1);
}

define('SITEDIR',$childsite['site_dir']);
set_cookie('siteid',SITEID);
$baselangdir=SITEDIR?SITEDIR:'zh-cn';
$baselangfile=DIRCMS_ROOT.'data/lang/'.$baselangdir.'/baselang.inc.php';
$baselangfile=file_exists($baselangfile)?$baselangfile:DIRCMS_ROOT.'data/lang/zh-cn/baselang.inc.php';
include $baselangfile;

/*
    FTP
*/
include_once('ftp.class.php');

if(FTP && FTP_SERVER && FTP_USER && FTP_PWD)
{
    $ftpobj = new ftp();
    $ftpobj->connect(FTP_SERVER,FTP_USER,FTP_PWD,FTP_PORT,FTP_TIMEOUT,SSL,PASV);
}

/*
    SESSION
*/
include_once('session_'.SESSION_STORAGE.'.class.php');
$session=new session();

/*
    缓存类
*/
include_once('cache_'.CACHE_STORAGE.'.class.php');
$cache=new cache();

/*
    上传类
*/
include_once('upload.class.php');
$upload=new upload();

include_once(DIRCMS_ROOT.'data/common.cache.php');

/*
    获取自定义变量
*/

$r=$db->fetch_all("SELECT * FROM `".DB_PRE."config` WHERE `".DB_PRE."config`.`siteid`=".intval(SITEID));

if($r)
{
    foreach($r as $_r)
    {
        $DIRCMS[$_r['varname']]=$_r['value'];
        if($_r['system'] && $_r['groupid']==1 && !defined(strtoupper($_r['varname'])))
        {
            define(strtoupper($_r['varname']),$_r['value']);
        }
    }
}
$DIRCMS['tlp_path']=DIRCMS_PATH.'template/'.TPL_NAME.'/';
$DIRCMS['tlp_name']=TPL_NAME;
$DIRCMS['dircms_path']=DIRCMS_PATH;
$DIRCMS['site_id']=SITEID;
$DIRCMS['site_dir']=SITEDIR;

if(!define(TLP_NAME))
{
    define('TLP_NAME',TPL_NAME);
}

if($_REQUEST)
{
    foreach($_REQUEST as $key => $value)
    {
        if(isset($$key))
        {
            unset($_REQUEST[$key]);
        }
    }
    
    if(MAGIC_QUOTES_GPC)
    {
        $_REQUEST = dircms_stripslashes($_REQUEST);
        if($_COOKIE) $_COOKIE = dircms_stripslashes($_COOKIE);
    }
    else
    {
        $_POST = dircms_addslashes($_POST);
        $_GET = dircms_addslashes($_GET);
        $_COOKIE = dircms_addslashes($_COOKIE);
        extract($_POST,EXTR_SKIP);
        extract($_GET,EXTR_SKIP);
        extract($_COOKIE,EXTR_SKIP);
    }
    extract($db->escape($_REQUEST),EXTR_SKIP);
    if($_COOKIE) $db->escape($_COOKIE);
}

/*
    模块对象
*/
include_once('module.class.php');
$module=new module();

$_userid=0;
$_username='游客/Tourist';
$_groupid=2;
$_gradeid=10;
$_roleid=0;
$_areaid=intval(get_cookie('areaid'));
$_areaid=$_areaid?$_areaid:CITY;

/*
    $install 变量: 判断模块是否安装的数组
*/
$install=array();
$modules=$module->module_list();
if($modules)
{
    foreach($modules as $mods)
    {
        $parse_file=DIRCMS_ROOT.$mods['folder'].'/include/template.func.php';
        if(file_exists($parse_file))
        {
            include_once $parse_file;
        }

        if(!$module->module_disabled($mods['folder']))
        {
            $install[$mods['folder']]=true;
        }
        else
        {
            $install[$mods['folder']]=false;
        }
    }
}
$_userid=0;

if($install['member']) // 检查是否安装了会员模块
{
    include_once(DIRCMS_ROOT.'member/data/config.inc.php');
    include_once(DIRCMS_ROOT.'member/api/templateinfo.func.php');
    $_username=$baselang['tourist'];
    $_groupid=2;
    $_gradeid=10;
    $_level=0;
    $_expire=0;
    $_facephoto='member/images/nophoto.gif';
    $dircms_auth=get_cookie('auth');
    if($dircms_auth)
    {
        $auth_key=md5(AUTH_KEY.$_SERVER['HTTP_USER_AGENT']);
        list($_userid,$_password)=explode("	", dircms_auth($dircms_auth, 'DECODE', $auth_key));
        $_userid=intval($_userid);
        $sql_cache_member="SELECT * FROM `".DB_PRE."member_cache` WHERE `id`=$_userid";
        $sql_member="SELECT * FROM `".DB_PRE."member` WHERE `id`=$_userid";
        $r = $db->fetch_one($sql_cache_member);

        if(!$r)
        {
            $r=$db->fetch_one($sql_member);
        }

        if($r && $r['password']===$_password)
        {
            if($r['groupid']==3 || $r['level']==0)
            {
                set_cookie('auth', '');
                showmsg($lang['MEMBER_LOGIN_ERR-1']);
            }
            extract($r,EXTR_PREFIX_ALL,'');
            $_message=max(0,$_message);
        }
        else
        {
            $_userid=0;
            $_username='';
            $_groupid=2;
            set_cookie('auth','');
        }
        unset($r,$dircms_auth,$dircms_auth_key,$_password,$sql_member);
    }
}

/*
    插件
*/
require DIRCMS_ROOT.'include/admin/plugins.class.php';
$plugins=new plugins();
$T=array();
?>

<?php
/**
* Mssql数据库类 只支持数据读取
* @author muhongwei
* @copyright            (C) 2009-2011 DirCMS
* @lastmodify            2011-11-17 10:37
*/
class mssql
{
    public $dblink;
    public $pconnect;
    private $rs;
    private $cursor = 0;
    private $querynum = 0;

    function connect($hostname,$username,$userpwd,$database,$pconnect=false)
    {
        $this->pconnect=$pconnect;
        $this->dblink=$pconnect?mssql_pconnect($hostname,$username,$userpwd):mssql_connect($hostname,$username,$userpwd);//

SQL Server 数据库函数库

mssql_pconnect

打开 MS SQL 服务器持续连接。

if(!$this->dblink ||!is_resource($this->dblink))
        {
            echo("Can not connect to MsSQL server!");
            return false;
        }
        mssql_query ('SET TEXTSIZE 65536',$this->dblink);
        if(!@mssql_select_db($database,$this->dblink))
        {
            echo("Can not select database!");
            return false;
        }
        return $this->dblink;
    }

    function query($sql)
    {
        $this->querynum++;
        $sql = trim($sql);
        if(preg_match("/^(select.*)limits+([0-9]+)(,([0-9]+))?$/i", $sql, $matchs))
        {
            $sql = $matchs[1];
            $offset = $matchs[2];
            $pagesize = $matchs[4];
            if(!$query = mssql_query($sql, $this->dblink))
            {
                echo('MsSQL Query Error'.$sql);
                return false;
            }
            return $this->limit($query, $offset, $pagesize);
        }
        else
        {
            if(!$query = mssql_query($sql, $this->dblink))
            {
                echo('MsSQL Query Error'.$sql);
                return false;
            }
            return $query;
        }
    }

    function fetch_all($sql)
    {
        $this->rs=$this->query($sql);
        $result=array();
        while($rows=$this->fetch_array($this->rs,MSSQL_ASSOC))
        {
            $result[]=$rows;
        }
        
        mssql_free_result($this->rs);
        return $result; 
    }

    function fetch_array($query, $type = MSSQL_ASSOC)
    {
        if(is_resource($query)) return mssql_fetch_array($query, $type);
        if($this->cursor < count($query))
        { 
            return $query[$this->cursor++]; 
        }
        return false; 
    }

    function limit($query, $offset, $pagesize = 0)
    {
        if($pagesize > 0)
        {
            mssql_data_seek($query, $offset);
        }
        else
        {
            $pagesize = $offset;
        }
        $info = array();

        for($i = 0; $i < $pagesize; $i++)
        {
            $r = $this->fetch_array($query);
            if(!$r) break;
            $info[] = $r;
        }
        $this->free_result($query);
        $this->cursor = 0;
        return $info;
    }

    function free_result($query)
    {
        if(is_resource($query))
        {
            mssql_free_result($query);
        }
    }

    function close()
    {
        if($this->dblink && is_resource($this->dblink) && !$this->pconnect)
        {
            return mssql_close($this->dblink);
        }
        return true;
    }
}