<?php

namespace app\common\controller;

use app\common\library\Auth;
use think\Config;
use think\Controller;
use think\Hook;
use think\Lang;
use think\Loader;
use think\Validate;

/**
 * 前台控制器基类
 */
class Frontend extends Controller
{

 /**
 * 布局模板
 * @var string
 */
 protected $layout = '';

 /**
 * 无需登录的方法,同时也就不需要鉴权了
 * @var array
 */
 protected $noNeedLogin = [];

 /**
 * 无需鉴权的方法,但需要登录
 * @var array
 */
 protected $noNeedRight = [];

 /**
 * 权限Auth
 * @var Auth
 */
 protected $auth = null;

 public function _initialize()
 {
 //移除HTML标签
 $this->request->filter('trim,strip_tags,htmlspecialchars');
 $modulename = $this->request->module();
 $controllername = Loader::parseName($this->request->controller());
 $actionname = strtolower($this->request->action());

 // 检测IP是否允许
 check_ip_allowed();

 // 如果有使用模板布局
 if ($this->layout) {
 $this->view->engine->layout('layout/' . $this->layout);
 }
 $this->auth = Auth::instance();

 // token
 $token = $this->request->server('HTTP_TOKEN', $this->request->request('token', \think\Cookie::get('token')));

 $path = str_replace('.', '/', $controllername) . '/' . $actionname;
 // 设置当前请求的URI
 $this->auth->setRequestUri($path);
 // 检测是否需要验证登录
 if (!$this->auth->match($this->noNeedLogin)) {
 //初始化
 $this->auth->init($token);
 //检测是否登录
 if (!$this->auth->isLogin()) {
 $this->error(__('Please login first'), 'index/user/login');
 }
 // 判断是否需要验证权限
 if (!$this->auth->match($this->noNeedRight)) {
 // 判断控制器和方法判断是否有对应权限
 if (!$this->auth->check($path)) {
 $this->error(__('You have no permission'));
 }
 }
 } else {
 // 如果有传递token才验证是否登录状态
 if ($token) {
 $this->auth->init($token);
 }
 }

 $this->view->assign('user', $this->auth->getUser());

 // 语言检测
 $lang = $this->request->langset();
 $lang = preg_match("/^([a-zA-Z\-_]{2,10})\$/i", $lang) ? $lang : 'zh-cn';

 $site = Config::get("site");

 $upload = \app\common\model\Config::upload();

 // 上传信息配置后
 Hook::listen("upload_config_init", $upload);

 // 配置信息
 $config = [
 'site' => array_intersect_key($site, array_flip(['name', 'cdnurl', 'version', 'timezone', 'languages'])),
 'upload' => $upload,
 'modulename' => $modulename,
 'controllername' => $controllername,
 'actionname' => $actionname,
 'jsname' => 'frontend/' . str_replace('.', '/', $controllername),
 'moduleurl' => rtrim(url("/{$modulename}", '', false), '/'),
 'language' => $lang
 ];
 $config = array_merge($config, Config::get("view_replace_str"));

 Config::set('upload', array_merge(Config::get('upload'), $upload));

 // 配置信息后
 Hook::listen("config_init", $config);
 // 加载当前控制器语言包
 $this->loadlang($controllername);
 $this->assign('site', $site);
 $this->assign('config', $config);
 }

 /**
 * 加载语言文件
 * @param string $name
 */
 protected function loadlang($name)
 {
 $name = Loader::parseName($name);
 $name = preg_match("/^([a-zA-Z0-9_\.\/]+)\$/i", $name) ? $name : 'index';
 $lang = $this->request->langset();
 $lang = preg_match("/^([a-zA-Z\-_]{2,10})\$/i", $lang) ? $lang : 'zh-cn';
 Lang::load(APP_PATH . $this->request->module() . '/lang/' . $lang . '/' . str_replace('.', '/', $name) . '.php');
 }

 /**
 * 渲染配置信息
 * @param mixed $name 键名或数组
 * @param mixed $value 值
 */
 protected function assignconfig($name, $value = '')
 {
 $this->view->config = array_merge($this->view->config ? $this->view->config : [], is_array($name) ? $name : [$name => $value]);
 }

 /**
 * 刷新Token
 */
 protected function token()
 {
 $token = $this->request->param('__token__');

 //验证Token
 if (!Validate::make()->check(['__token__' => $token], ['__token__' => 'require|token'])) {
 $this->error(__('Token verification error'), '', ['__token__' => $this->request->token()]);
 }

 //刷新Token
 $this->request->token();
 }
}