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File: /www/wwwroot/ww.snodshop.com/Public//ThinkPHP/Extend/Behavior/CheckLangBehavior.class.php
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id: CheckLangBehavior.class.php 2735 2012-02-15 03:11:13Z liu21st $

/**
 +------------------------------------------------------------------------------
 * 系统行为扩展 语言检测 并自动加载语言包
 +------------------------------------------------------------------------------
 */
class CheckLangBehavior extends Behavior {
	// 行为参数定义(默认值) 可在项目配置中覆盖
	protected $options   =  array(
            'LANG_SWITCH_ON'        => true,   // 默认关闭语言包功能
            'LANG_AUTO_DETECT'      => true,   // 自动侦测语言 开启多语言功能后有效
            'LANG_LIST' => 'zh-cn', // 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
	);

	// 行为扩展的执行入口必须是run
	public function run(&$params){
		// 开启静态缓存
		$this->checkLanguage();
	}

	/**
	 +----------------------------------------------------------
	 * 语言检查
	 * 检查浏览器支持语言,并自动加载语言包
	 +----------------------------------------------------------
	 * @access private
	 +----------------------------------------------------------
	 * @return void
	 +----------------------------------------------------------
	 */
	private function checkLanguage() {
		// 不开启语言包功能,仅仅加载框架语言文件直接返回
		if (!C('LANG_SWITCH_ON')){
			return;
		}
		$langSet = C('DEFAULT_LANG');
		// 启用了语言包功能
		// 根据是否启用自动侦测设置获取语言选择
		if (C('LANG_AUTO_DETECT')){
			if(isset($_GET[C('VAR_LANGUAGE')])){
				$langSet = $_GET[C('VAR_LANGUAGE')];// url中设置了语言变量
				cookie('think_language',$langSet,3600);
			}elseif(cookie('think_language')){// 获取上次用户的选择
				$langSet = cookie('think_language');
			}elseif(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){// 自动侦测浏览器语言
				preg_match('/^([a-z\-]+)/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $matches);
				$langSet = $matches[1];
				cookie('think_language',$langSet,3600);
			}
			if(false === stripos(C('LANG_LIST'),$langSet)) { // 非法语言参数
				$langSet = C('DEFAULT_LANG');
			}
		}
		// 定义当前语言
		define('LANG_SET',strtolower($langSet));
		// 读取项目公共语言包
		if (is_file(LANG_PATH.LANG_SET.'/common.php'))
		L(include LANG_PATH.LANG_SET.'/common.php');

		$group = '';
		// 读取当前分组公共语言包
		if (defined('GROUP_NAME')){
			if (is_file(LANG_PATH.LANG_SET.'/'.GROUP_NAME.'.php'))
			L(include LANG_PATH.LANG_SET.'/'.GROUP_NAME.'.php');
			$group = GROUP_NAME.C('TMPL_FILE_DEPR');
		}
		// 读取当前模块语言包
		if (is_file(LANG_PATH.LANG_SET.'/'.$group.strtolower(MODULE_NAME).'.php'))
		L(include LANG_PATH.LANG_SET.'/'.$group.strtolower(MODULE_NAME).'.php');
	}
}