Chyrp在Safe Mode的PHP服务器上安装问题

Chyrp是个轻量级的CMS/Blog平台，可以用来在小项目和低配置机器上替代Wordpress。但是在设置了Safe Mode的平台上安装时，会遇到一些问题，需要手动调整。

Warning: glob() has been disabled for security reasons in /root_dir/chyrp_dir/includes/class/Theme.php on line 200

这是最严重的问题，系统设置禁用了glob函数，Chyrp无法获取当前目录下文件列表，会造成sytesheets路径出问题，页面显示不正常。解决方法是在chyrp_dir/include中创建文件sec_glob.php，内容为

<?php
/**#@+
 * Extra GLOB constant for safe_glob()
 */
define('GLOB_NODIR',256);
define('GLOB_PATH',512);
define('GLOB_NODOTS',1024);
define('GLOB_RECURSE',2048);
/**#@-*/

/**
 * A safe empowered glob().
 *
 * Function glob() is prohibited on some server (probably in safe mode)
 * (Message "Warning: glob() has been disabled for security reasons in
 * (script) on line (line)") for security reasons as stated on:
 * http://seclists.org/fulldisclosure/2005/Sep/0001.html
 *
 * safe_glob() intends to replace glob() using readdir() & fnmatch() instead.
 * Supported flags: GLOB_MARK, GLOB_NOSORT, GLOB_ONLYDIR
 * Additional flags: GLOB_NODIR, GLOB_PATH, GLOB_NODOTS, GLOB_RECURSE
 * (not original glob() flags)
 * @author BigueNique AT yahoo DOT ca
 * @updates
 * - 080324 Added support for additional flags: GLOB_NODIR, GLOB_PATH,
 *   GLOB_NODOTS, GLOB_RECURSE
 */
function safe_glob($pattern, $flags=GLOB_PATH) {
    $split=explode('/',str_replace('\\','/',$pattern));
    $mask=array_pop($split);
    $path=implode('/',$split);
    if (($dir=@opendir($path))!==false) {
        $glob=array();
        while(($file=readdir($dir))!==false) {
            // Recurse subdirectories (GLOB_RECURSE)
            if( ($flags&GLOB_RECURSE) && is_dir($file) && (!in_array($file,array('.','..'))) )
                $glob = array_merge($glob, array_prepend(safe_glob($path.'/'.$file.'/'.$mask, $flags),
                    ($flags&GLOB_PATH?'':$file.'/')));
            // Match file mask
            if (fnmatch($mask,$file)) {
                if ( ( (!($flags&GLOB_ONLYDIR)) || is_dir("$path/$file") )
                  && ( (!($flags&GLOB_NODIR)) || (!is_dir($path.'/'.$file)) )
                  && ( (!($flags&GLOB_NODOTS)) || (!in_array($file,array('.','..'))) ) )
                    $glob[] = ($flags&GLOB_PATH?$path.'/':'') . $file . ($flags&GLOB_MARK?'/':'');
            }
        }
        closedir($dir);
        if (!($flags&GLOB_NOSORT)) sort($glob);
        return $glob;
    } else {
        return false;
    }    
}

/**
 * A better "fnmatch" alternative for windows that converts a fnmatch
 * pattern into a preg one. It should work on PHP >= 4.0.0.
 * @author soywiz at php dot net
 * @since 17-Jul-2006 10:12
 */
if (!function_exists('fnmatch')) {
    function fnmatch($pattern, $string) {
        return @preg_match('/^' . strtr(addcslashes($pattern, '\\.+^$(){}=!<>|'), array('*' => '.*', '?' => '.?')) . '$/i', $string);
    }
}
?>

编辑chyrp_dir/include/Theme.php，在代码最前面加入

require_once("sec_glob.php");

查找并替换所有glob为safe_glob。对于其它不重要的函数调用可以通过给函数名前加@关闭警告信息，如替换opendir为@opendir即可。