599 lines
16 KiB
PHP
599 lines
16 KiB
PHP
<?php
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namespace Typecho;
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/**
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* 服务器请求处理类
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*
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* @package Request
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*/
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class Request
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{
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/**
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* 单例句柄
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*
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* @access private
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* @var Request
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*/
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private static $instance;
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/**
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* 内部参数
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*
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* @access private
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* @var Config|null
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*/
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private $params;
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/**
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* 路径信息
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*
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* @access private
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* @var string
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*/
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private $pathInfo = null;
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/**
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* requestUri
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*
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* @var string
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* @access private
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*/
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private $requestUri = null;
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/**
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* requestRoot
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*
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* @var mixed
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* @access private
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*/
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private $requestRoot = null;
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/**
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* 获取baseurl
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*
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* @var string
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* @access private
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*/
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private $baseUrl = null;
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/**
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* 客户端ip地址
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*
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* @access private
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* @var string
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*/
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private $ip = null;
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/**
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* 域名前缀
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*
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* @var string
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*/
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private $urlPrefix = null;
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/**
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* 获取单例句柄
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*
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* @access public
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* @return Request
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*/
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public static function getInstance(): Request
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{
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if (!isset(self::$instance)) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* 初始化变量
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*
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* @return $this
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*/
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public function proxy(Config $params): Request
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{
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$this->params = $params;
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return $this;
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}
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/**
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* 获取实际传递参数
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*
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* @access public
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*
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* @param string $key 指定参数
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* @param mixed $default 默认参数 (default: NULL)
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* @param bool|null $exists detect exists
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*
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* @return mixed
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*/
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public function get(string $key, $default = null, ?bool &$exists = true)
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{
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switch (true) {
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case isset($this->params) && isset($this->params[$key]):
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$value = $this->params[$key];
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break;
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case isset($_GET[$key]):
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$value = $_GET[$key];
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break;
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case isset($_POST[$key]):
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$value = $_POST[$key];
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break;
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default:
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$value = $default;
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$exists = false;
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break;
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}
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// reset params
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if (isset($this->params)) {
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$this->params = null;
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}
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return ((!is_array($value) && strlen($value) > 0) || is_array($default)) ? $value : $default;
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}
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/**
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* 获取一个数组
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*
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* @param $key
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*
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* @return array
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*/
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public function getArray($key): array
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{
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$result = $this->get($key, []);
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return is_array($result) ? $result
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: (strlen($result) > 0 ? [$result] : []);
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}
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/**
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* 从参数列表指定的值中获取http传递参数
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*
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* @access public
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*
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* @param mixed $params 指定的参数
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*
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* @return array
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*/
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public function from($params): array
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{
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$result = [];
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$args = is_array($params) ? $params : func_get_args();
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foreach ($args as $arg) {
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$result[$arg] = $this->get($arg);
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}
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return $result;
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}
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/**
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* getRequestRoot
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*
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* @access public
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* @return string
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*/
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public function getRequestRoot(): string
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{
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if (null === $this->requestRoot) {
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$root = rtrim($this->getUrlPrefix() . $this->getBaseUrl(), '/') . '/';
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$pos = strrpos($root, '.php/');
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if ($pos) {
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$root = dirname(substr($root, 0, $pos));
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}
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$this->requestRoot = rtrim($root, '/');
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}
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return $this->requestRoot;
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}
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/**
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* 获取当前请求url
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*
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* @access public
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* @return string
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*/
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public function getRequestUrl(): string
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{
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return $this->getUrlPrefix() . $this->getRequestUri();
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}
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/**
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* 根据当前uri构造指定参数的uri
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*
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* @param mixed $parameter 指定的参数
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*
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* @return string
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*/
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public function makeUriByRequest($parameter = null): string
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{
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/** 初始化地址 */
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$requestUri = $this->getRequestUrl();
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$parts = parse_url($requestUri);
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/** 初始化参数 */
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if (is_string($parameter)) {
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parse_str($parameter, $args);
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} elseif (is_array($parameter)) {
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$args = $parameter;
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} else {
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return $requestUri;
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}
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/** 构造query */
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if (isset($parts['query'])) {
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parse_str($parts['query'], $currentArgs);
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$args = array_merge($currentArgs, $args);
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}
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$parts['query'] = http_build_query($args);
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/** 返回地址 */
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return Common::buildUrl($parts);
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}
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/**
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* 获取当前pathinfo
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*
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* @return string
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*/
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public function getPathInfo(): ?string
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{
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/** 缓存信息 */
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if (null !== $this->pathInfo) {
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return $this->pathInfo;
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}
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$inputEncoding = null;
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$outputEncoding = null;
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if (defined('__TYPECHO_PATHINFO_ENCODING__')) {
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$inputEncoding = __TYPECHO_PATHINFO_ENCODING__;
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$outputEncoding = Common::$charset;
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}
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//参考Zend Framework对pahtinfo的处理, 更好的兼容性
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$pathInfo = null;
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//处理requestUri
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$requestUri = $this->getRequestUri();
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$finalBaseUrl = $this->getBaseUrl();
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// Remove the query string from REQUEST_URI
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if ($pos = strpos($requestUri, '?')) {
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$requestUri = substr($requestUri, 0, $pos);
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}
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if (
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(null !== $finalBaseUrl)
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&& (false === ($pathInfo = substr($requestUri, strlen($finalBaseUrl))))
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) {
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// If substr() returns false then PATH_INFO is set to an empty string
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$pathInfo = '/';
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} elseif (null === $finalBaseUrl) {
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$pathInfo = $requestUri;
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}
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if (!empty($pathInfo)) {
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//针对iis的utf8编码做强制转换
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//参考http://docs.moodle.org/ja/%E5%A4%9A%E8%A8%80%E8%AA%9E%E5%AF%BE%E5%BF%9C%EF%BC%9A%E3%82%B5%E3%83%BC%E3%83%90%E3%81%AE%E8%A8%AD%E5%AE%9A
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if (
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!empty($inputEncoding)
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&& !empty($outputEncoding)
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&& (stripos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false
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|| stripos($_SERVER['SERVER_SOFTWARE'], 'ExpressionDevServer') !== false)
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) {
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if (function_exists('mb_convert_encoding')) {
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$pathInfo = mb_convert_encoding($pathInfo, $outputEncoding, $inputEncoding);
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} elseif (function_exists('iconv')) {
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$pathInfo = iconv($inputEncoding, $outputEncoding, $pathInfo);
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}
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}
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} else {
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$pathInfo = '/';
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}
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// fix issue 456
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return ($this->pathInfo = '/' . ltrim(urldecode($pathInfo), '/'));
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}
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/**
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* 获取环境变量
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*
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* @param string $name 获取环境变量名
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* @param string|null $default
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* @return string|null
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*/
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public function getServer(string $name, string $default = null): ?string
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{
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return $_SERVER[$name] ?? $default;
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}
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/**
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* 获取ip地址
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*
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* @access public
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* @return string
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*/
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public function getIp(): string
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{
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if (null === $this->ip) {
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$header = defined('__TYPECHO_IP_SOURCE__') ? __TYPECHO_IP_SOURCE__ : 'X-Forwarded-For';
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$ip = $this->getHeader($header, $this->getHeader('Client-Ip', $this->getServer('REMOTE_ADDR')));
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if (!empty($ip)) {
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[$ip] = array_map('trim', explode(',', $ip));
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$ip = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6);
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}
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if (!empty($ip)) {
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$this->ip = $ip;
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} else {
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$this->ip = 'unknown';
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}
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}
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return $this->ip;
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}
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/**
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* get header value
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*
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* @param string $key
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* @param string|null $default
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*
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* @return string|null
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*/
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public function getHeader(string $key, ?string $default = null): ?string
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{
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$key = 'HTTP_' . strtoupper(str_replace('-', '_', $key));
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return $this->getServer($key, $default);
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}
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/**
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* 获取客户端
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*
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* @access public
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* @return string
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*/
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public function getAgent(): ?string
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{
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return $this->getHeader('User-Agent');
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}
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/**
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* 获取客户端
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*
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* @access public
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* @return string|null
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*/
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public function getReferer(): ?string
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{
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return $this->getHeader('Referer');
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}
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/**
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* 判断是否为https
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*
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* @return bool
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*/
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public function isSecure(): bool
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{
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return (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && !strcasecmp('https', $_SERVER['HTTP_X_FORWARDED_PROTO']))
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|| (!empty($_SERVER['HTTP_X_FORWARDED_PORT']) && 443 == $_SERVER['HTTP_X_FORWARDED_PORT'])
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|| (!empty($_SERVER['HTTPS']) && 'off' != strtolower($_SERVER['HTTPS']))
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|| (!empty($_SERVER['SERVER_PORT']) && 443 == $_SERVER['SERVER_PORT'])
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|| (defined('__TYPECHO_SECURE__') && __TYPECHO_SECURE__);
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}
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/**
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* 判断是否为get方法
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*
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* @return boolean
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*/
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public function isGet(): bool
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{
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return 'GET' == $this->getServer('REQUEST_METHOD');
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}
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/**
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* 判断是否为post方法
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*
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* @return boolean
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*/
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public function isPost(): bool
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{
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return 'POST' == $this->getServer('REQUEST_METHOD');
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}
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/**
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* 判断是否为put方法
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*
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* @return boolean
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*/
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public function isPut(): bool
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{
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return 'PUT' == $this->getServer('REQUEST_METHOD');
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}
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/**
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* 判断是否为ajax
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*
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* @return boolean
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*/
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public function isAjax(): bool
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{
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return 'XMLHttpRequest' == $this->getServer('HTTP_X_REQUESTED_WITH');
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}
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/**
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* 判断输入是否满足要求
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*
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* @param mixed $query 条件
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* @return boolean
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*/
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public function is($query): bool
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{
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$validated = false;
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/** 解析串 */
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if (is_string($query)) {
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parse_str($query, $params);
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} elseif (is_array($query)) {
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$params = $query;
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}
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/** 验证串 */
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if (!empty($params)) {
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$validated = true;
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foreach ($params as $key => $val) {
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$param = $this->get($key, null, $exists);
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$validated = empty($val) ? $exists : ($val == $param);
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if (!$validated) {
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break;
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}
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}
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}
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return $validated;
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}
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/**
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* 获取url前缀
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*
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* @access public
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* @return string
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*/
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private function getUrlPrefix(): string
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{
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if (empty($this->urlPrefix)) {
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if (defined('__TYPECHO_URL_PREFIX__')) {
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$this->urlPrefix = __TYPECHO_URL_PREFIX__;
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} elseif (php_sapi_name() != 'cli') {
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$this->urlPrefix = ($this->isSecure() ? 'https' : 'http') . '://'
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. ($_SERVER['HTTP_HOST'] ?? $_SERVER['SERVER_NAME']);
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}
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}
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return $this->urlPrefix;
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}
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/**
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* 获取请求地址
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*
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* @access public
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* @return string
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*/
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private function getRequestUri(): ?string
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{
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if (!empty($this->requestUri)) {
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return $this->requestUri;
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}
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//处理requestUri
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$requestUri = '/';
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if (isset($_SERVER['HTTP_X_REWRITE_URL'])) { // check this first so IIS will catch
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$requestUri = $_SERVER['HTTP_X_REWRITE_URL'];
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} elseif (
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// IIS7 with URL Rewrite: make sure we get the unencoded url (double slash problem)
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isset($_SERVER['IIS_WasUrlRewritten'])
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&& $_SERVER['IIS_WasUrlRewritten'] == '1'
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&& isset($_SERVER['UNENCODED_URL'])
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&& $_SERVER['UNENCODED_URL'] != ''
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) {
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$requestUri = $_SERVER['UNENCODED_URL'];
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} elseif (isset($_SERVER['REQUEST_URI'])) {
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$requestUri = $_SERVER['REQUEST_URI'];
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$parts = @parse_url($requestUri);
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if (isset($_SERVER['HTTP_HOST']) && strstr($requestUri, $_SERVER['HTTP_HOST'])) {
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if (false !== $parts) {
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$requestUri = (empty($parts['path']) ? '' : $parts['path'])
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. ((empty($parts['query'])) ? '' : '?' . $parts['query']);
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}
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} elseif (!empty($_SERVER['QUERY_STRING']) && empty($parts['query'])) {
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// fix query missing
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$requestUri .= '?' . $_SERVER['QUERY_STRING'];
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}
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} elseif (isset($_SERVER['ORIG_PATH_INFO'])) { // IIS 5.0, PHP as CGI
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$requestUri = $_SERVER['ORIG_PATH_INFO'];
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if (!empty($_SERVER['QUERY_STRING'])) {
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$requestUri .= '?' . $_SERVER['QUERY_STRING'];
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}
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}
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return $this->requestUri = $requestUri;
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}
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/**
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* getBaseUrl
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*
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* @access public
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* @return string
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*/
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private function getBaseUrl(): ?string
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{
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if (null !== $this->baseUrl) {
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return $this->baseUrl;
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}
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//处理baseUrl
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$filename = (isset($_SERVER['SCRIPT_FILENAME'])) ? basename($_SERVER['SCRIPT_FILENAME']) : '';
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if (isset($_SERVER['SCRIPT_NAME']) && basename($_SERVER['SCRIPT_NAME']) === $filename) {
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$baseUrl = $_SERVER['SCRIPT_NAME'];
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} elseif (isset($_SERVER['PHP_SELF']) && basename($_SERVER['PHP_SELF']) === $filename) {
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$baseUrl = $_SERVER['PHP_SELF'];
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} elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $filename) {
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$baseUrl = $_SERVER['ORIG_SCRIPT_NAME']; // 1and1 shared hosting compatibility
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} else {
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// Backtrack up the script_filename to find the portion matching
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// php_self
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$path = $_SERVER['PHP_SELF'] ?? '';
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$file = $_SERVER['SCRIPT_FILENAME'] ?? '';
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$segs = explode('/', trim($file, '/'));
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$segs = array_reverse($segs);
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$index = 0;
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$last = count($segs);
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$baseUrl = '';
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do {
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$seg = $segs[$index];
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$baseUrl = '/' . $seg . $baseUrl;
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++$index;
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} while (($last > $index) && (false !== ($pos = strpos($path, $baseUrl))) && (0 != $pos));
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}
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|
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// Does the baseUrl have anything in common with the request_uri?
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$finalBaseUrl = null;
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$requestUri = $this->getRequestUri();
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if (0 === strpos($requestUri, $baseUrl)) {
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// full $baseUrl matches
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$finalBaseUrl = $baseUrl;
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} elseif (0 === strpos($requestUri, dirname($baseUrl))) {
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// directory portion of $baseUrl matches
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$finalBaseUrl = rtrim(dirname($baseUrl), '/');
|
|
} elseif (!strpos($requestUri, basename($baseUrl))) {
|
|
// no match whatsoever; set it blank
|
|
$finalBaseUrl = '';
|
|
} elseif (
|
|
(strlen($requestUri) >= strlen($baseUrl))
|
|
&& ((false !== ($pos = strpos($requestUri, $baseUrl))) && ($pos !== 0))
|
|
) {
|
|
// If using mod_rewrite or ISAPI_Rewrite strip the script filename
|
|
// out of baseUrl. $pos !== 0 makes sure it is not matching a value
|
|
// from PATH_INFO or QUERY_STRING
|
|
$baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
|
|
}
|
|
|
|
return ($this->baseUrl = (null === $finalBaseUrl) ? rtrim($baseUrl, '/') : $finalBaseUrl);
|
|
}
|
|
}
|