<?php

/**
 * 安装程序
 */

header('Content-Type: text/html; charset=utf-8');

// 判断环境
if (version_compare(PHP_VERSION, '5.2.0') < 0) {
    echo "<font color=red>PHP版本必须在5.2以上</font>";exit;
}

!defined('WEBPATH') && define('WEBPATH', dirname(__FILE__).'/');
!defined('WRITEPATH') && define('WRITEPATH', WEBPATH.'caches/');

// 判断目录权限
foreach (array(
             WRITEPATH,
             WRITEPATH.'configs/',
             WRITEPATH.'caches_admin/',
             WRITEPATH.'caches_commons/',
             WRITEPATH.'caches_content/',
             WRITEPATH.'caches_linkage/',
             WRITEPATH.'caches_member/',
             WRITEPATH.'caches_model/',
             WRITEPATH.'caches_scan/',
             WRITEPATH.'caches_template/',
             WRITEPATH.'caches_tpl_data/',
             WRITEPATH.'poster_js/',
             WRITEPATH.'vote_js/',
             WRITEPATH.'sessions/',
             WEBPATH.'html/',
             WEBPATH.'uploadfile/',
         ) as $t) {
    if (!dr_check_put_path($t)) {
        exit('目录（'.$t.'）不可写');
    }
}

header('Location: install');

// 检查目录权限
function dr_check_put_path($dir) {

    if (!$dir) {
        return 0;
    } elseif (!is_dir($dir)) {
        return 0;
    }

    $size = @file_put_contents($dir.'test.html', 'test');
    if ($size === false) {
        return 0;
    } else {
        @unlink($dir.'test.html');
        return 1;
    }
}