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271 lines
8.3 KiB
PHP
271 lines
8.3 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think;
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class Input
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{
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// 全局过滤规则
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static $filter = null;
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/**
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* 获取get变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function get($name = '', $default = null, $filter = '')
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{
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return self::getData($name, $_GET, $filter, $default);
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}
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/**
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* 获取post变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function post($name = '', $default = null, $filter = '')
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{
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return self::getData($name, $_POST, $filter, $default);
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}
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/**
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* 获取put变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function put($name = '', $default = null, $filter = '')
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{
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static $_PUT = null;
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if (is_null($_PUT)) {
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parse_str(file_get_contents('php://input'), $_PUT);
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}
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return self::getData($name, $_PUT, $filter, $default);
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}
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/**
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* 获取post变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function param($name = '', $default = null, $filter = '')
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{
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switch ($_SERVER['REQUEST_METHOD']) {
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case 'POST':
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return self::post($name, $default, $filter);
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case 'PUT':
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return self::put($name, $default, $filter);
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default:
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return self::get($name, $default, $filter);
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}
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}
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/**
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* 获取request变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function request($name = '', $default = null, $filter = '')
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{
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return self::getData($name, $_REQUEST, $filter, $default);
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}
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/**
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* 获取session变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function session($name = '', $default = null, $filter = '')
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{
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return self::getData($name, $_SESSION, $filter, $default);
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}
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/**
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* 获取cookie变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function cookie($name = '', $default = null, $filter = '')
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{
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return self::getData($name, $_COOKIE, $filter, $default);
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}
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/**
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* 获取post变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function server($name = '', $default = null, $filter = '')
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{
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return self::getData(strtoupper($name), $_SERVER, $filter, $default);
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}
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/**
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* 获取GLOBALS变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function globals($name = '', $default = null, $filter = '')
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{
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return self::getData($name, $GLOBALS, $filter, $default);
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}
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/**
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* 获取环境变量
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* @access public
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* @param string $name 数据名称
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* @param string $default 默认值
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* @param string $filter 过滤方法
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* @return mixed
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*/
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public static function env($name = '', $default = null, $filter = '')
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{
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return self::getData(strtoupper($name), $_ENV, $filter, $default);
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}
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/**
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* 获取系统变量 支持过滤和默认值
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* @access public
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*
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* @param $name
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* @param $input
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* @param $filter
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* @param $default
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*
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* @return mixed
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* @internal param string $method 输入数据类型
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* @internal param array $args 参数 [key,filter,default]
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*/
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private static function getData($name, $input, $filter, $default)
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{
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if (strpos($name, '/')) {
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// 指定修饰符
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list($name, $type) = explode('/', $name, 2);
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} else {
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// 默认强制转换为字符串
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$type = 's';
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}
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$filters = isset($filter) ? $filter : self::$filter;
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if ('' == $name) {
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// 获取全部变量
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$data = $input;
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if ($filters) {
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if (is_string($filters)) {
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$filters = explode(',', $filters);
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}
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foreach ($filters as $filter) {
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$data = self::filter($filter, $data); // 参数过滤
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}
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}
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} elseif (isset($input[$name])) {
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// 取值操作
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$data = $input[$name];
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if ($filters) {
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if (is_string($filters)) {
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if (0 === strpos($filters, '/')) {
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if (1 !== preg_match($filters, (string) $data)) {
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// 支持正则验证
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return $default;
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}
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} else {
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$filters = explode(',', $filters);
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}
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} elseif (is_int($filters)) {
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$filters = [$filters];
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}
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if (is_array($filters)) {
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foreach ($filters as $filter) {
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if (function_exists($filter)) {
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$data = is_array($data) ? self::filter($filter, $data) : $filter($data); // 参数过滤
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} else {
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$data = filter_var($data, is_int($filter) ? $filter : filter_id($filter));
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if (false === $data) {
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return $default;
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}
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}
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}
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}
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}
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if (!empty($type)) {
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switch (strtolower($type)) {
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case 'a': // 数组
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$data = (array) $data;
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break;
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case 'd': // 数字
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$data = (int) $data;
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break;
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case 'f': // 浮点
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$data = (float) $data;
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break;
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case 'b': // 布尔
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$data = (boolean) $data;
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break;
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case 's': // 字符串
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default:
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$data = (string) $data;
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}
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}
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} else {
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// 变量默认值
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$data = $default;
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}
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is_array($data) && array_walk_recursive($data, 'self::filterExp');
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return $data;
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}
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// 过滤表单中的表达式
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public static function filterExp(&$value)
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{
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// TODO 其他安全过滤
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// 过滤查询特殊字符
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if (preg_match('/^(EXP|NEQ|GT|EGT|LT|ELT|OR|XOR|LIKE|NOTLIKE|NOT BETWEEN|NOTBETWEEN|BETWEEN|NOTIN|NOT IN|IN)$/i', $value)) {
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$value .= ' ';
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}
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}
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public static function filter($filter, $data)
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{
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$result = [];
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foreach ($data as $key => $val) {
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$result[$key] = is_array($val) ? self::filter($filter, $val) : call_user_func($filter, $val);
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}
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return $result;
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}
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}
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