<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think\controller;
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use think\App;
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use think\Request;
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use think\Response;
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abstract class Rest
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{
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protected $method; // 当前请求类型
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protected $type; // 当前资源类型
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// 输出类型
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protected $restMethodList = 'get|post|put|delete';
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protected $restDefaultMethod = 'get';
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protected $restTypeList = 'html|xml|json|rss';
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protected $restDefaultType = 'html';
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protected $restOutputType = [ // REST允许输出的资源类型列表
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'xml' => 'application/xml',
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'json' => 'application/json',
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'html' => 'text/html',
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];
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/**
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* 构造函数 取得模板对象实例
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* @access public
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*/
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public function __construct()
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{
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// 资源类型检测
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$request = Request::instance();
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$ext = $request->ext();
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if ('' == $ext) {
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// 自动检测资源类型
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$this->type = $request->type();
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} elseif (!preg_match('/(' . $this->restTypeList . ')$/i', $ext)) {
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// 资源类型非法 则用默认资源类型访问
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$this->type = $this->restDefaultType;
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} else {
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$this->type = $ext;
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}
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// 请求方式检测
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$method = strtolower($request->method());
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if (!preg_match('/(' . $this->restMethodList . ')$/i', $method)) {
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// 请求方式非法 则用默认请求方法
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$method = $this->restDefaultMethod;
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}
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$this->method = $method;
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}
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/**
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* REST 调用
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* @access public
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* @param string $method 方法名
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* @return mixed
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* @throws \Exception
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*/
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public function _empty($method)
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{
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if (method_exists($this, $method . '_' . $this->method . '_' . $this->type)) {
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// RESTFul方法支持
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$fun = $method . '_' . $this->method . '_' . $this->type;
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} elseif ($this->method == $this->restDefaultMethod && method_exists($this, $method . '_' . $this->type)) {
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$fun = $method . '_' . $this->type;
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} elseif ($this->type == $this->restDefaultType && method_exists($this, $method . '_' . $this->method)) {
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$fun = $method . '_' . $this->method;
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}
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if (isset($fun)) {
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return App::invokeMethod([$this, $fun]);
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} else {
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// 抛出异常
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throw new \Exception('error action :' . $method);
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}
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}
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/**
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* 输出返回数据
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* @access protected
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* @param mixed $data 要返回的数据
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* @param String $type 返回类型 JSON XML
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* @param integer $code HTTP状态码
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* @return Response
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*/
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protected function response($data, $type = 'json', $code = 200)
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{
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return Response::create($data, $type)->code($code);
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}
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}
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