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482 lines
15 KiB
PHP
482 lines
15 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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use think\Config;
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use think\File;
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use think\Session;
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class Input
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{
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// 全局过滤规则
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public static $filters;
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/**
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* 获取get变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function get($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($_GET, $name, $default, $filter, $merge);
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}
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/**
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* 获取post变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function post($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($_POST, $name, $default, $filter, $merge);
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}
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/**
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* 获取put变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function put($name = '', $default = null, $filter = null, $merge = false)
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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'), $_PUT);
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}
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return self::data($_PUT, $name, $default, $filter, $merge);
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}
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/**
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* 获取delete变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function delete($name = '', $default = null, $filter = null, $merge = false)
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{
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static $_DELETE = null;
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if (is_null($_DELETE)) {
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parse_str(file_get_contents('php://input'), $_DELETE);
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$_DELETE = array_merge($_DELETE, $_GET);
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}
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return self::data($_DELETE, $name, $default, $filter, $merge);
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}
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/**
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* 根据请求方法获取变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function param($name = '', $default = null, $filter = null, $merge = false)
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{
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switch ($_SERVER['REQUEST_METHOD']) {
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case 'POST':
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$method = 'post';
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break;
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case 'PUT':
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$method = 'put';
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break;
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case 'DELETE':
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$method = 'delete';
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break;
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default:
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$method = 'get';
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}
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return self::$method($name, $default, $filter, $merge);
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}
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/**
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* 获取request变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function request($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($_REQUEST, $name, $default, $filter, $merge);
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}
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/**
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* 获取session变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function session($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data(Session::get(), $name, $default, $filter, $merge);
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}
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/**
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* 获取cookie变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function cookie($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($_COOKIE, $name, $default, $filter, $merge);
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}
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/**
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* 获取post变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function server($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($_SERVER, strtoupper($name), $default, $filter, $merge);
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}
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/**
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* 获取GLOBALS变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function globals($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($GLOBALS, $name, $default, $filter, $merge);
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}
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/**
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* 获取环境变量
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function env($name = '', $default = null, $filter = null, $merge = false)
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{
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return self::data($_ENV, strtoupper($name), $default, $filter, $merge);
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}
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/**
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* 获取PATH_INFO
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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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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function path($name = '', $default = null, $filter = null, $merge = false)
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{
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if (!empty($_SERVER['PATH_INFO'])) {
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$depr = Config::get('pathinfo_depr');
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$input = explode($depr, trim($_SERVER['PATH_INFO'], $depr));
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return self::data($input, $name, $default, $filter, $merge);
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} else {
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return $default;
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}
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}
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/**
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* 获取$_FILES
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* @param string $name 数据名称
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* @param array $files 上传文件
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* @return \think\File|array
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*/
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public static function file($name = '', $files = [])
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{
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$files = $files ?: (isset($_FILES) ? $_FILES : []);
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if (!empty($files)) {
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// 处理上传文件
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$array = [];
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$n = 0;
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foreach ($files as $key => $file) {
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if (is_array($file['name'])) {
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$keys = array_keys($file);
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$count = count($file['name']);
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for ($i = 0; $i < $count; $i++) {
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$array[$n]['key'] = $key;
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foreach ($keys as $_key) {
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$array[$n][$_key] = $file[$_key][$i];
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}
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$n++;
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}
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} else {
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$array = $files;
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break;
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}
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}
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if ('' === $name) {
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// 获取全部文件
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$item = [];
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foreach ($array as $key => $val) {
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if($val instanceof File){
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$item[$key] = $val;
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}else{
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if (empty($val['tmp_name'])) {
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continue;
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}
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$item[$key] = new File($val['tmp_name'], $val);
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}
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}
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return $item;
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} elseif (isset($array[$name])) {
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if($array[$name] instanceof File){
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return $array[$name];
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} elseif (!empty($array[$name]['tmp_name'])){
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return new File($array[$name]['tmp_name'], $array[$name]);
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}
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}
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}
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return null;
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}
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/**
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* 获取变量 支持过滤和默认值
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* @param array $input 数据源
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* @param string $name 字段名
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* @param mixed $default 默认值
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* @param mixed $filter 过滤函数
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* @param boolean $merge 是否与默认的过虑方法合并
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* @return mixed
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*/
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public static function data($input, $name = '', $default = null, $filter = null, $merge = false)
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{
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if (0 === strpos($name, '?')) {
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return self::has(substr($name, 1), $input);
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}
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$data = $input;
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$name = (string) $name;
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if ('' != $name) {
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// 解析name
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list($name, $type) = static::parseName($name);
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// 按.拆分成多维数组进行判断
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foreach (explode('.', $name) as $val) {
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if (isset($data[$val])) {
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$data = $data[$val];
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} else {
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// 无输入数据，返回默认值
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return $default;
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}
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}
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}
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// 解析过滤器
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$filters = static::parseFilter($filter, $merge);
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// 为方便传参把默认值附加在过滤器后面
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$filters[] = $default;
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if (is_array($data)) {
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array_walk_recursive($data, 'self::filter', $filters);
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} else {
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self::filter($data, $name ?: 0, $filters);
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}
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if (isset($type) && $data !== $default) {
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// 强制类型转换
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static::typeCast($data, $type);
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}
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return $data;
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}
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/**
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* 判断一个变量是否设置
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* @param string $name
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* @param array $data
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* @return bool
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*/
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public static function has($name, $data)
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{
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foreach (explode('.', $name) as $val) {
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if (!isset($data[$val])) {
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return false;
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} else {
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$data = $data[$val];
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}
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}
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return true;
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}
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/**
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* 设置默认的过滤函数
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* @param string|array $name
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* @return array
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*/
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public static function setFilter($name)
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{
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if (is_string($name)) {
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$name = explode(',', $name);
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}
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static::$filters = $name;
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}
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/**
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* 过滤表单中的表达式
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* @param string $value
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* @return void
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*/
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public static function filterExp(&$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 (is_string($value) && preg_match('/^(EXP|NEQ|GT|EGT|LT|ELT|OR|XOR|LIKE|NOTLIKE|NOT BETWEEN|NOTBETWEEN|BETWEEN|NOTIN|NOT IN|IN)$/i', $value)) {
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$value .= ' ';
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}
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}
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/**
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* 递归过滤给定的值
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* @param mixed $value 键值
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* @param mixed $key 键名
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* @param array $filters 过滤方法+默认值
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* @return mixed
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*/
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private static function filter(&$value, $key, $filters)
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{
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// 分离出默认值
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$default = array_pop($filters);
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foreach ($filters as $filter) {
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if (is_callable($filter)) {
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// 调用函数过滤
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$value = call_user_func($filter, $value);
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} else {
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$begin = substr($filter, 0, 1);
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if (in_array($begin, ['/', '#', '~']) && $begin == $end = substr($filter, -1)) {
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// 正则过滤
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if (!preg_match($filter, $value)) {
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// 匹配不成功返回默认值
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$value = $default;
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break;
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}
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} else {
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// filter函数不存在时, 则使用filter_var进行过滤
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// filter为非整形值时, 调用filter_id取得过滤id
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$value = filter_var($value, is_int($filter) ? $filter : filter_id($filter));
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if (false === $value) {
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// 不通过过滤器则返回默认值
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$value = $default;
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break;
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}
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}
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}
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}
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self::filterExp($value);
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}
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/**
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* 解析name
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* @param string $name
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* @return array 返回name和类型
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*/
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private static function parseName($name)
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{
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return strpos($name, '/') ? explode('/', $name, 2) : [$name, 's'];
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}
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/**
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* 解析过滤器
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* @param mixed $filter
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* @return array
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*/
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private static function parseFilter($filter, $merge = false)
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{
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if (is_null($filter)) {
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$result = self::getFilter();
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} elseif (empty($filter)) {
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$result = [];
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} else {
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if (is_array($filter)) {
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$result = $filter;
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} elseif (is_string($filter) && false === strpos($filter, '/') && strpos($filter, ',')) {
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$result = explode(',', $filter);
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} else {
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$result = [$filter];
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}
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if ($merge) {
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// 与默认的过滤函数合并
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$result = array_merge(self::getFilter(), array_diff($result, self::getFilter()));
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}
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}
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return $result;
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}
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/**
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* 获取过滤方法
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* @return array
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*/
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private static function getFilter()
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{
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if (is_null(static::$filters)) {
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// 从配置项中读取
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$filters = Config::get('default_filter');
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static::$filters = empty($filters) ? [] : (is_array($filters) ? $filters : explode(',', $filters));
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}
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return static::$filters;
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}
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/**
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* 强类型转换
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* @param string $data
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* @param string $type
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* @return mixed
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*/
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private static function typeCast(&$data, $type)
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{
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switch (strtolower($type)) {
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// 数组
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case 'a':
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$data = (array) $data;
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break;
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// 数字
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case 'd':
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$data = (int) $data;
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break;
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// 浮点
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case 'f':
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$data = (float) $data;
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break;
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// 布尔
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case 'b':
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$data = (boolean) $data;
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break;
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// 字符串
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case 's':
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default:
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if (is_scalar($data)) {
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$data = (string) $data;
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} else {
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throw new \InvalidArgumentException('variable type error：' . gettype($data));
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}
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}
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}
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}
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