cloud-computing-course-final/install/ajax.php

<?php
// --------
// 	如果你能在浏览器中看到本句话，则证明你没有安装好PHP运行环境。请先安装好PHP运行环境
// --------
ini_set("display_errors", "Off");
error_reporting(E_ALL | E_STRICT);
header("Content-type: text/html; charset=utf-8"); 
include("common.php");
if(file_exists('./install.lock') && $f = file_get_contents("./install.lock")){
	ajax_out(L("lock"),10099);
}

if(!new_is_writeable("./")){
	ajax_out(L("not_writable_install"),10098);
}

if(!new_is_writeable("../Public/Uploads")){
	ajax_out(L("not_writable_upload"),10098);
}


if(!new_is_writeable("../server/Application/Runtime")){
    ajax_out(L("not_writable_server_runtime"),10095);
}


if(!new_is_writeable("../server/Application/Home/Conf/config.php")){
	ajax_out(L("not_writable_home_config"),10098);
}


$db_type = $_POST["db_type"] ?  $_POST["db_type"] :"sqlite";
if ($db_type == "sqlite") {
	if(!new_is_writeable("../Sqlite")){
		ajax_out(L("not_writable_sqlite"),10097);
	}

	if(!new_is_writeable("../Sqlite/showdoc.db.php")){
		ajax_out(L("not_writable_sqlite_db"),10096);
	}
    user_sqlite();
}
elseif ($db_type == "mysql") {
    //showdoc不再支持mysql http://www.showdoc.cc/help?page_id=31990
}
function user_sqlite(){
        clear_runtime();//清除缓存
        write_js_lang();
        
        $ret = write_home_config();
        if ($ret) {
        	file_put_contents("./install.lock","https://www.showdoc.cc/");
            ajax_out(L("install_success"));
        }else{
            ajax_out(L("not_writable_home_config"),10001);
        }
}


function write_home_config(){
	$lang = $_REQUEST['lang'] ? $_REQUEST['lang'] :"zh";
	if ($lang == 'en') {
		$DEFAULT_LANG = 'en-us';
	}else{
		$DEFAULT_LANG = 'zh-cn';
	}
        $config = "<?php ";
        $config .= "
return array(
	//'配置项'=>'配置值'
    'DB_TYPE'   => 'Sqlite', 
    'DB_NAME'   => './Sqlite/showdoc.db.php', 
    'LANG_SWITCH_ON' => true,   // 开启语言包功能
    'LANG_AUTO_DETECT' => false, // 自动侦测语言 开启多语言功能后有效
    'DEFAULT_LANG' => '{$DEFAULT_LANG}', // 默认语言
    'LANG_LIST'        => 'zh-cn,en-us', // 允许切换的语言列表 用逗号分隔
    'VAR_LANGUAGE'     => 'l', // 默认语言切换变量
);";

	$ret = file_put_contents("../server/Application/Home/Conf/config.php", $config);
    return $ret ;
}

function write_js_lang(){
    $lang = $_REQUEST['lang'] ? $_REQUEST['lang'] :"zh";
    if ($lang == 'en') {
       replace_file_content("../web/index.html","zh-cn","en") ;
       replace_file_content("../web_src/index.html","zh-cn","en") ;
    }
    
}

function replace_file_content($file , $from ,$to ){
    $content = file_get_contents($file);
    $content2 = str_replace($from,$to,$content);
    if ($content2) {
        file_put_contents($file,$content2);
    }
}