Source/BladeX-Tool/blade-core-boot/src/main/java/org/springblade/core/boot/request/BladeHttpServletRequestWrapper.java

¶Ô±ÈÐÂÎļþ
@@ -0,0 +1,120 @@
/*
 *      Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: Chill åº„骞 (smallchill@163.com)
 */
package org.springblade.core.boot.request;

import org.springblade.core.tool.utils.WebUtil;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;

import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * å…¨å±€Request包装
 *
 * @author Chill
 */
public class BladeHttpServletRequestWrapper extends HttpServletRequestWrapper {

   /**
    * æ²¡è¢«åŒ…装过的HttpServletRequest（特殊场景,需要自己过滤）
    */
   private final HttpServletRequest orgRequest;
   /**
    * ç¼“存报文,支持多次读取流
    */
   private byte[] body;


   public BladeHttpServletRequestWrapper(HttpServletRequest request) {
      super(request);
      orgRequest = request;
   }

   @Override
   public BufferedReader getReader() throws IOException {
      return new BufferedReader(new InputStreamReader(getInputStream()));
   }

   @Override
   public ServletInputStream getInputStream() throws IOException {
      if (super.getHeader(HttpHeaders.CONTENT_TYPE) == null) {
         return super.getInputStream();
      }

      if (super.getHeader(HttpHeaders.CONTENT_TYPE).startsWith(MediaType.MULTIPART_FORM_DATA_VALUE)) {
         return super.getInputStream();
      }

      if (body == null) {
         body = WebUtil.getRequestBody(super.getInputStream()).getBytes();
      }

      final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(body);

      return new ServletInputStream() {

         @Override
         public int read() {
            return byteArrayInputStream.read();
         }

         @Override
         public boolean isFinished() {
            return false;
         }

         @Override
         public boolean isReady() {
            return false;
         }

         @Override
         public void setReadListener(ReadListener readListener) {
         }
      };
   }

   /**
    * èŽ·å–初始request
    *
    * @return HttpServletRequest
    */
   public HttpServletRequest getOrgRequest() {
      return orgRequest;
   }

   /**
    * èŽ·å–初始request
    *
    * @param request request
    * @return HttpServletRequest
    */
   public static HttpServletRequest getOrgRequest(HttpServletRequest request) {
      if (request instanceof BladeHttpServletRequestWrapper) {
         return ((BladeHttpServletRequestWrapper) request).getOrgRequest();
      }
      return request;
   }

}