审查视图

thinkphp/library/think/Response.php 8.3 KB
李忠强 authored
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace think;

use think\response\Json as JsonResponse;
use think\response\Jsonp as JsonpResponse;
use think\response\Redirect as RedirectResponse;
use think\response\View as ViewResponse;
use think\response\Xml as XmlResponse;

class Response
{
    // 原始数据
    protected $data;

    // 当前的contentType
    protected $contentType = 'text/html';

    // 字符集
    protected $charset = 'utf-8';

    //状态
    protected $code = 200;

    // 输出参数
    protected $options = [];
    // header参数
    protected $header = [];

    protected $content = null;

    /**
     * 构造函数
     * @access   public
     * @param mixed $data    输出数据
     * @param int   $code
     * @param array $header
     * @param array $options 输出参数
     */
    public function __construct($data = '', $code = 200, array $header = [], $options = [])
    {
        $this->data($data);
        if (!empty($options)) {
            $this->options = array_merge($this->options, $options);
        }
        $this->contentType($this->contentType, $this->charset);
        $this->header = array_merge($this->header, $header);
        $this->code   = $code;
    }

    /**
     * 创建Response对象
     * @access public
     * @param mixed  $data    输出数据
     * @param string $type    输出类型
     * @param int    $code
     * @param array  $header
     * @param array  $options 输出参数
     * @return Response|JsonResponse|ViewResponse|XmlResponse|RedirectResponse|JsonpResponse
     */
    public static function create($data = '', $type = '', $code = 200, array $header = [], $options = [])
    {
        $class = false !== strpos($type, '\\') ? $type : '\\think\\response\\' . ucfirst(strtolower($type));
        if (class_exists($class)) {
            $response = new $class($data, $code, $header, $options);
        } else {
            $response = new static($data, $code, $header, $options);
        }

        return $response;
    }

    /**
     * 发送数据到客户端
     * @access public
     * @return mixed
     * @throws \InvalidArgumentException
     */
    public function send()
    {
        // 监听response_send
        Hook::listen('response_send', $this);

        // 处理输出数据
        $data = $this->getContent();

        // Trace调试注入
        if (Env::get('app_trace', Config::get('app_trace'))) {
            Debug::inject($this, $data);
        }

        if (200 == $this->code) {
            $cache = Request::instance()->getCache();
            if ($cache) {
                $this->header['Cache-Control'] = 'max-age=' . $cache[1] . ',must-revalidate';
                $this->header['Last-Modified'] = gmdate('D, d M Y H:i:s') . ' GMT';
                $this->header['Expires']       = gmdate('D, d M Y H:i:s', $_SERVER['REQUEST_TIME'] + $cache[1]) . ' GMT';
                Cache::tag($cache[2])->set($cache[0], [$data, $this->header], $cache[1]);
            }
        }

        if (!headers_sent() && !empty($this->header)) {
            // 发送状态码
            http_response_code($this->code);
            // 发送头部信息
            foreach ($this->header as $name => $val) {
                if (is_null($val)) {
                    header($name);
                } else {
                    header($name . ':' . $val);
                }
            }
        }

        echo $data;

        if (function_exists('fastcgi_finish_request')) {
            // 提高页面响应
            fastcgi_finish_request();
        }

        // 监听response_end
        Hook::listen('response_end', $this);

        // 清空当次请求有效的数据
        if (!($this instanceof RedirectResponse)) {
            Session::flush();
        }
    }

    /**
     * 处理数据
     * @access protected
     * @param mixed $data 要处理的数据
     * @return mixed
     */
    protected function output($data)
    {
        return $data;
    }

    /**
     * 输出的参数
     * @access public
     * @param mixed $options 输出参数
     * @return $this
     */
    public function options($options = [])
    {
        $this->options = array_merge($this->options, $options);
        return $this;
    }

    /**
     * 输出数据设置
     * @access public
     * @param mixed $data 输出数据
     * @return $this
     */
    public function data($data)
    {
        $this->data = $data;
        return $this;
    }

    /**
     * 设置响应头
     * @access public
     * @param string|array $name  参数名
     * @param string       $value 参数值
     * @return $this
     */
    public function header($name, $value = null)
    {
        if (is_array($name)) {
            $this->header = array_merge($this->header, $name);
        } else {
            $this->header[$name] = $value;
        }
        return $this;
    }

    /**
     * 设置页面输出内容
     * @param $content
     * @return $this
     */
    public function content($content)
    {
        if (null !== $content && !is_string($content) && !is_numeric($content) && !is_callable([
            $content,
            '__toString',
        ])
        ) {
            throw new \InvalidArgumentException(sprintf('variable type error: %s', gettype($content)));
        }

        $this->content = (string) $content;

        return $this;
    }

    /**
     * 发送HTTP状态
     * @param integer $code 状态码
     * @return $this
     */
    public function code($code)
    {
        $this->code = $code;
        return $this;
    }

    /**
     * LastModified
     * @param string $time
     * @return $this
     */
    public function lastModified($time)
    {
        $this->header['Last-Modified'] = $time;
        return $this;
    }

    /**
     * Expires
     * @param string $time
     * @return $this
     */
    public function expires($time)
    {
        $this->header['Expires'] = $time;
        return $this;
    }

    /**
     * ETag
     * @param string $eTag
     * @return $this
     */
    public function eTag($eTag)
    {
        $this->header['ETag'] = $eTag;
        return $this;
    }

    /**
     * 页面缓存控制
     * @param string $cache 状态码
     * @return $this
     */
    public function cacheControl($cache)
    {
        $this->header['Cache-control'] = $cache;
        return $this;
    }

    /**
     * 页面输出类型
     * @param string $contentType 输出类型
     * @param string $charset     输出编码
     * @return $this
     */
    public function contentType($contentType, $charset = 'utf-8')
    {
        $this->header['Content-Type'] = $contentType . '; charset=' . $charset;
        return $this;
    }

    /**
     * 获取头部信息
     * @param string $name 头部名称
     * @return mixed
     */
    public function getHeader($name = '')
    {
        if (!empty($name)) {
            return isset($this->header[$name]) ? $this->header[$name] : null;
        } else {
            return $this->header;
        }
    }

    /**
     * 获取原始数据
     * @return mixed
     */
    public function getData()
    {
        return $this->data;
    }

    /**
     * 获取输出数据
     * @return mixed
     */
    public function getContent()
    {
        if (null == $this->content) {
            $content = $this->output($this->data);

            if (null !== $content && !is_string($content) && !is_numeric($content) && !is_callable([
                $content,
                '__toString',
            ])
            ) {
                throw new \InvalidArgumentException(sprintf('variable type error: %s', gettype($content)));
            }

            $this->content = (string) $content;
        }
        return $this->content;
    }

    /**
     * 获取状态码
     * @return integer
     */
    public function getCode()
    {
        return $this->code;
    }
}