joyqi
705 lines
18 KiB
PHP
705 lines
18 KiB
PHP
<?php
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/**
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* Typecho Blog Platform
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*
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* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
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* @license GNU General Public License 2.0
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* @version $Id$
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*/
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/**
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* 服务器请求处理类
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*
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* TODO getSiteUrl
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* @package Request
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*/
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class Typecho_Request
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{
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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 array
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*/
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private $_params = array();
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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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* 服务端参数
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*
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* @access private
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* @var array
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*/
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private $_server = array();
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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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* 客户端字符串
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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 $_agent = NULL;
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/**
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* 来源页
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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 $_referer = NULL;
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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 Typecho_Request
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*/
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private static $_instance = NULL;
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/**
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* 当前过滤器
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*
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* @access private
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* @var array
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*/
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private $_filter = array();
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/**
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* 支持的过滤器列表
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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 static $_supportFilters = array(
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'int' => 'intval',
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'integer' => 'intval',
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'search' => array('Typecho_Common', 'filterSearchQuery'),
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'xss' => array('Typecho_Common', 'removeXSS'),
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'url' => array('Typecho_Common', 'safeUrl')
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);
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/**
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* 获取单例句柄
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*
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* @access public
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* @return Typecho_Request
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*/
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public static function getInstance()
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{
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if (NULL === self::$_instance) {
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self::$_instance = new Typecho_Request();
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}
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return self::$_instance;
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}
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/**
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* 应用过滤器
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*
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* @access private
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* @param mixed $value
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* @return void
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*/
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private function _applyFilter($value)
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{
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if ($this->_filter) {
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foreach ($this->_filter as $filter) {
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$value = is_array($value) ? array_map($filter, $value) :
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call_user_func($filter, $value);
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}
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}
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$this->_filter = array();
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return $value;
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}
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/**
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* 设置过滤器
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*
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* @access public
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* @param mixed $filter 过滤器名称
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* @return Typecho_Widget_Request
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*/
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public function filter()
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{
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$filters = func_get_args();
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foreach ($filters as $filter) {
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$this->_filter[] = is_string($filter) && isset(self::$_supportFilters[$filter])
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? self::$_supportFilters[$filter] : $filter;
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}
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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(magic)
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*
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* @access public
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* @param string $key 指定参数
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* @return void
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*/
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public function __get($key)
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{
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return $this->get($key);
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}
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/**
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* 判断参数是否存在
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*
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* @access public
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* @param string $key 指定参数
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* @return void
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*/
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public function __isset($key)
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{
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return isset($_GET[$key])
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|| isset($_POST[$key])
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|| isset($_COOKIE[$key])
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|| $this->isSetParam($key);
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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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* @param string $key 指定参数
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* @param mixed $default 默认参数 (default: NULL)
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* @return void
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*/
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public function get($key, $default = NULL)
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{
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$value = $default;
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switch (true) {
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case isset($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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case isset($_COOKIE[$key]):
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$value = $_COOKIE[$key];
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break;
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default:
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$value = $default;
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break;
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}
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$value = is_array($value) || strlen($value) > 0 ? $value : $default;
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return $this->_filter ? $this->_applyFilter($value) : $value;
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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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* @param mixed $parameter 指定的参数
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* @return array
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*/
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public function from($params)
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{
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$result = array();
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$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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* 获取指定的http传递参数
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*
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* @access public
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* @param string $key 指定的参数
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* @param mixed $default 默认的参数
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* @return mixed
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*/
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public function getParam($key, $default = NULL)
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{
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$value = isset($this->_params[$key]) ? $this->_params[$key] : $default;
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$value = is_array($value) || strlen($value) > 0 ? $value : $default;
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return $this->_filter ? $this->_applyFilter($value) : $value;
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}
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/**
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* 设置http传递参数
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*
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* @access public
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* @param string $name 指定的参数
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* @param mixed $value 参数值
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* @return void
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*/
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public function setParam($name, $value)
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{
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$this->_params[$name] = $value;
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}
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/**
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* 删除参数
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*
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* @access public
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* @param string $name 指定的参数
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* @return void
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*/
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public function unSetParam($name)
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{
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unset($this->_params[$name]);
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}
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/**
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* 参数是否存在
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*
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* @access public
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* @param string $key 指定的参数
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* @return boolean
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*/
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public function isSetParam($key)
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{
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return isset($this->_params[$key]);
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}
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/**
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* 设置多个参数
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*
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* @access public
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* @param mixed $params 参数列表
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* @return void
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*/
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public function setParams($params)
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{
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//处理字符串
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if (!is_array($params)) {
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parse_str($params, $out);
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$params = $out;
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}
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$this->_params = array_merge($this->_params, $params);
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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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* @access public
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* @param mixed $parameter 指定的参数
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* @return string
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*/
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public function makeUriByRequest($parameter = NULL)
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{
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/** 初始化地址 */
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$scheme = $this->isSecure() ? 'https' : 'http';
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$requestUri = strtolower($scheme) . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
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$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, $args);
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} else if (is_array($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($args);
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/** Typecho_Common */
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require_once 'Typecho/Common.php';
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/** 返回地址 */
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return Typecho_Common::buildUrl($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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* @access public
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* @param string $inputEncoding 输入编码
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* @param string $outputEncoding 输出编码
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* @return string
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*/
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public function getPathInfo($inputEncoding = NULL, $outputEncoding = NULL)
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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 $this->_pathInfo;
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}
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//参考Zend Framework对pahtinfo的处理, 更好的兼容性
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$pathInfo = NULL;
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//处理requestUri
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$requestUri = NULL;
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if (isset($_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 = $_SERVER['REQUEST_URI'];
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if (isset($_SERVER['HTTP_HOST']) && strstr($requestUri, $_SERVER['HTTP_HOST'])) {
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$parts = @parse_url($requestUri);
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if (false !== $parts) {
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$requestUri = (empty($parts['path']) ? '' : $parts['path'])
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. ((empty($parts['query'])) ? '' : '?' . $parts['query']);
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}
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}
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} elseif (isset($_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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} else {
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return $this->_pathInfo = '/';
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}
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//处理baseUrl
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$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 = isset($_SERVER['PHP_SELF']) ? $_SERVER['PHP_SELF'] : '';
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$file = isset($_SERVER['SCRIPT_FILENAME']) ? $_SERVER['SCRIPT_FILENAME'] : '';
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$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 != $pos));
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}
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// Does the baseUrl have anything in common with the request_uri?
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$finalBaseUrl = NULL;
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if (0 === strpos($requestUri, $baseUrl)) {
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// full $baseUrl matches
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$finalBaseUrl = $baseUrl;
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} else if (0 === strpos($requestUri, dirname($baseUrl))) {
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// directory portion of $baseUrl matches
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$finalBaseUrl = rtrim(dirname($baseUrl), '/');
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} else if (!strpos($requestUri, basename($baseUrl))) {
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// no match whatsoever; set it blank
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$finalBaseUrl = '';
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} else if ((strlen($requestUri) >= strlen($baseUrl))
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&& ((false !== ($pos = strpos($requestUri, $baseUrl))) && ($pos !== 0)))
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{
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// If using mod_rewrite or ISAPI_Rewrite strip the script filename
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// out of baseUrl. $pos !== 0 makes sure it is not matching a value
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// from PATH_INFO or QUERY_STRING
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$baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
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}
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$finalBaseUrl = (NULL === $finalBaseUrl) ? rtrim($baseUrl, '/') : $finalBaseUrl;
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// Remove the query string from REQUEST_URI
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if ($pos = strpos($requestUri, '?')) {
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$requestUri = substr($requestUri, 0, $pos);
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}
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if ((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 (!empty($inputEncoding) && !empty($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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if (function_exists('mb_convert_encoding')) {
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$pathInfo = mb_convert_encoding($pathInfo, $outputEncoding, $inputEncoding);
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} else if (function_exists('iconv')) {
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$pathInfo = iconv($pathInfoEncoding, $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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* 设置服务端参数
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*
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* @access public
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* @param string $name 参数名称
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* @param mixed $value 参数值
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* @return void
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*/
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public function setServer($name, $value = NULL)
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{
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if (NULL == $value) {
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if (isset($_SERVER[$name])) {
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$value = $_SERVER[$name];
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} else if (isset($_ENV[$name])) {
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$value = $_ENV[$name];
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}
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}
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$this->_server[$name] = $value;
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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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* @access public
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* @param string $name 获取环境变量名
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* @return string
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*/
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public function getServer($name)
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{
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if (!isset($this->_server[$name])) {
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$this->setServer($name);
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}
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return $this->_server[$name];
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}
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/**
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* 设置ip地址
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*
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* @access public
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* @param unknown $ip
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* @return unknown
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*/
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public function setIp($ip = NULL)
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{
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switch (true) {
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case NULL !== $this->getServer('HTTP_X_FORWARDED_FOR'):
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list($this->_ip) = array_map('trim', explode(',', $this->getServer('HTTP_X_FORWARDED_FOR')));
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return;
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case NULL !== $this->getServer('HTTP_CLIENT_IP'):
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$this->_ip = $this->getServer('HTTP_CLIENT_IP');
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return;
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case NULL !== $this->getServer('REMOTE_ADDR'):
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$this->_ip = $this->getServer('REMOTE_ADDR');
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return;
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default:
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break;
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}
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$this->_ip = 'unknown';
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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()
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{
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if (NULL === $this->_ip) {
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$this->setIp();
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}
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return $this->_ip;
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}
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/**
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* 设置客户端
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*
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* @access public
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* @param string $agent 客户端字符串
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* @return void
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*/
|
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public function setAgent($agent = NULL)
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{
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$this->_agent = (NULL === $agent) ? $this->getServer('HTTP_USER_AGENT') : $agent;
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}
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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 void
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|
*/
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public function getAgent()
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{
|
|
if (NULL === $this->_agent) {
|
|
$this->setAgent();
|
|
}
|
|
|
|
return $this->_agent;
|
|
}
|
|
|
|
/**
|
|
* 设置来源页
|
|
*
|
|
* @access public
|
|
* @param string $referer 客户端字符串
|
|
* @return void
|
|
*/
|
|
public function setReferer($referer = NULL)
|
|
{
|
|
$this->_referer = (NULL === $referer) ? $this->getServer('HTTP_REFERER') : $referer;
|
|
}
|
|
|
|
/**
|
|
* 获取客户端
|
|
*
|
|
* @access public
|
|
* @return void
|
|
*/
|
|
public function getReferer()
|
|
{
|
|
if (NULL === $this->_referer) {
|
|
$this->setReferer();
|
|
}
|
|
|
|
return $this->_referer;
|
|
}
|
|
|
|
/**
|
|
* 判断是否为get方法
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function isGet()
|
|
{
|
|
return 'GET' == $this->getServer('REQUEST_METHOD');
|
|
}
|
|
|
|
/**
|
|
* 判断是否为post方法
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function isPost()
|
|
{
|
|
return 'POST' == $this->getServer('REQUEST_METHOD');
|
|
}
|
|
|
|
/**
|
|
* 判断是否为put方法
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function isPut()
|
|
{
|
|
return 'PUT' == $this->getServer('REQUEST_METHOD');
|
|
}
|
|
|
|
/**
|
|
* 判断是否为https
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function isSecure()
|
|
{
|
|
return 'on' == $this->getServer('HTTPS') || 443 == $this->getServer('SERVER_PORT');
|
|
}
|
|
|
|
/**
|
|
* 判断是否为ajax
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function isAjax()
|
|
{
|
|
return 'XMLHttpRequest' == $this->getServer('HTTP_X_REQUESTED_WITH');
|
|
}
|
|
|
|
/**
|
|
* 判断是否为flash
|
|
*
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function isFlash()
|
|
{
|
|
return 'Shockwave Flash' == $this->getServer('USER_AGENT');
|
|
}
|
|
|
|
/**
|
|
* 判断输入是否满足要求
|
|
*
|
|
* @access public
|
|
* @param mixed $query 条件
|
|
* @return boolean
|
|
*/
|
|
public function is($query)
|
|
{
|
|
$validated = false;
|
|
|
|
/** 解析串 */
|
|
if (is_string($query)) {
|
|
parse_str($query, $params);
|
|
} else if (is_array($query)) {
|
|
$params = $query;
|
|
}
|
|
|
|
/** 验证串 */
|
|
if ($params) {
|
|
$validated = true;
|
|
foreach ($params as $key => $val) {
|
|
if (empty($val)) {
|
|
$validated = $this->__isSet($key);
|
|
} else {
|
|
$validated = ($this->get($key) == $val);
|
|
}
|
|
|
|
if (!$validated) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $validated;
|
|
}
|
|
}
|