387 lines
8.4 KiB
PHP
387 lines
8.4 KiB
PHP
<?php
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namespace top\library\http;
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use top\library\exception\RouteException;
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use top\traits\Instance;
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/**
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* 请求类
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* @author topnuomi 2018年11月23日
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*/
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class Request
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{
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use Instance;
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/**
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* 保存$_SERVER变量
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* @var array
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*/
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private $server = [];
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/**
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* 中间件
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* @var array
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*/
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private $middleware = [];
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/**
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* 路由实例
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* @var null
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*/
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private $router = null;
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/**
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* post、get数据删除的值
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* @var array
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*/
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private $except = [];
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private function __construct()
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{
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$this->server = (!empty($_SERVER)) ? $_SERVER : [];
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}
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/**
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* 当前请求方式
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* @return mixed|string
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*/
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private function requestMethod()
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{
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return (isset($this->server['REQUEST_METHOD']) && $this->server['REQUEST_METHOD'] != '') ? $this->server['REQUEST_METHOD'] : '';
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}
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/**
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* POST
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* @return boolean
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*/
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public function isPost()
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{
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return $this->requestMethod() == 'POST';
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}
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/**
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* GET
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* @return boolean
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*/
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public function isGet()
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{
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return $this->requestMethod() == 'GET';
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}
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/**
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* PUT
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* @return boolean
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*/
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public function isPut()
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{
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return $this->requestMethod() == 'PUT';
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}
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/**
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* DELETE
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* @return boolean
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*/
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public function isDelete()
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{
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return $this->requestMethod() == 'DELETE';
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}
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/**
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* HEAD
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* @return boolean
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*/
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public function isHead()
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{
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return $this->requestMethod() == 'HEAD';
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}
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/**
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* HEAD
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* @return boolean
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*/
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public function isPatch()
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{
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return $this->requestMethod() == 'PATCH';
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}
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/**
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* HEAD
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* @return boolean
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*/
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public function isOptions()
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{
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return $this->requestMethod() == 'OPTIONS';
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}
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/**
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* AJAX
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* @return boolean
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*/
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public function isAjax()
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{
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return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && ($_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest');
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}
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/**
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* 创建一个请求（post或get取决于data是否有值且不为空或空数组）
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* @param string $url
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* @param array $data
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* @param array $header
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* @return boolean
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*/
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public function create($url, $data = [], $header = [])
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{
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return create_http_request($url, $data, $header);
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}
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/**
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* 获取客户端IP
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* @param int $type
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* @param bool $client
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* @return mixed
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*/
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public function ip($type = 0, $client = true)
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{
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return get_client_ip($type, $client);
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}
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/**
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* 当前请求的URI
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* @return mixed
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*/
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public function uri()
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{
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return $this->router->uri();
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}
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/**
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* 模块名称
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* @return mixed
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*/
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public function module()
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{
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return $this->router->module();
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}
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/**
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* 控制器完整类名
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* @return mixed
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*/
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public function controllerFullName()
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{
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return $this->router->controllerFullName();
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}
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/**
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* 控制器名称
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* @return mixed
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*/
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public function controller()
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{
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return $this->router->controller();
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}
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/**
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* 方法名称
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* @return mixed
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*/
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public function method()
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{
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return $this->router->method();
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}
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/**
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* 参数
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* @return mixed
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*/
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public function params()
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{
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return $this->router->params();
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}
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/**
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* 移除值
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* @param $field
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* @return $this
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*/
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public function except($field = null)
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{
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if (is_array($field)) {
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$this->except = array_merge($this->except, $field);
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} elseif ($field) {
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$this->except[] = $field;
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}
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return $this;
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}
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/**
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* 请求的header数据
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* @param string $key
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* @return array|false|null
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*/
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public function header($key = '*')
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{
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$headers = get_header();
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if ($key == '*') {
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return $headers;
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} elseif ($key && isset($headers[$key])) {
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return $headers[$key];
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} else {
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return null;
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}
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}
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/**
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* GET数据
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* @param string $name
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* @param array $except
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* @param string $filter
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* @return null
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*/
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public function get($name = '*', $except = [], $filter = 'filter')
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{
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return $this->requestData('get', $name, $except, $filter);
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}
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/**
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* POST数据
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* @param string $name
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* @param array $except
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* @param string $filter
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* @return null
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*/
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public function post($name = '*', $except = [], $filter = 'filter')
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{
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return $this->requestData('post', $name, $except, $filter);
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}
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/**
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* GET POST公共方法
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* @param $type
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* @param $name
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* @param $except
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* @param $filter
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* @return null
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*/
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private function requestData($type, $name, $except, $filter)
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{
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$data = ($type == 'get') ? $_GET : $_POST;
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$name = ($name == '*') ? null : $name;
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if (!is_array($except)) {
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$except = explode(',', $except);
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}
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$this->except = array_merge($this->except, $except);
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// 移除指定的值
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foreach ($this->except as $key => $value) {
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if (isset($data[$value])) {
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unset($data[$value]);
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}
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}
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// 重置except的值
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$this->except = [];
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filterArray($data, $filter, $data);
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if ($name) {
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if (isset($data[$name])) {
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return $data[$name];
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} else {
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return null;
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}
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} else {
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return $data;
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}
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}
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/**
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* 指定路由
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* @param $router
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* @return $this
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*/
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public function setRoute($router)
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{
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$this->router = $router;
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return $this;
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}
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/**
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* 设置路由并执行程序
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* @return mixed
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*/
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public function execute()
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{
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$this->check();
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// 将执行应用打包为$application
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$application = function () {
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$controllerFullName = $this->controllerFullName();
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$method = $this->method();
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$params = $this->params();
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$data = null;
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$object = new $controllerFullName();
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$reflectionClass = new \ReflectionClass($controllerFullName);
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if ($reflectionClass->hasMethod('_init')) {
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$data = $object->_init();
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}
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if ($data === null || $data === '') {
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// 前置方法
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$beforeReturnData = null;
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$beforeMethod = 'before_' . $method;
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if ($reflectionClass->hasMethod($beforeMethod)) {
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$beforeReturnData = $object->{$beforeMethod}();
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}
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if ($beforeReturnData === null || $beforeReturnData === '' || $beforeReturnData === true) {
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$reflectionMethod = new \ReflectionMethod($controllerFullName, $method);
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$data = $reflectionMethod->invokeArgs($object, $params);
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// 后置方法
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$afterMethod = 'after_' . $method;
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if ($reflectionClass->hasMethod($afterMethod)) {
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$object->{$afterMethod}();
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}
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} else {
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$data = $beforeReturnData;
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}
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}
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return $data;
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};
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// 由路由中间件去处理application，并返回结果
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return $this->router->middleware($application);
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}
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/**
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* 执行必要检查
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* @throws RouteException
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*/
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private function check()
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{
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// 检查模块是否存在
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if (!is_dir(APP_PATH . $this->module())) {
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throw new RouteException('模块' . $this->module() . '不存在');
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}
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// 检查控制器是否存在
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if (!class_exists($this->controllerFullName())) {
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throw new RouteException('控制器' . $this->controllerFullName() . '不存在');
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}
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// 检查方法在控制器中是否存在
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if (!in_array($this->method(), get_class_methods($this->controllerFullName()))) {
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throw new RouteException('方法' . $this->method() . '在控制器' . $this->controller() . '中不存在');
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}
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}
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public function __destruct()
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{
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}
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}
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