package com.nationalelectric.greenH5;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.UUID;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import com.nationalelectirc.Constant.Constant;
import com.nationalelectirc.utils.RestResult;
import com.nationalelectirc.utils.Utils;
import com.nationalelectric.greenH5.utils.MD5Util;

import Decoder.BASE64Decoder;
import net.sf.json.JSONObject;

/**
 * <b>概述</b>：<br>
 * <p>
 * <p>
 * <b>功能</b>：<br>
 * 图片上传
 *
 * @author MaYong
 */
@Controller
@RequestMapping("/greenFileUploadController")
public class GreenFileUploadController {

	/**
	 * 文件上传
	 *
	 * @param file
	 * @param Request
	 * @param response
	 * @throws IOException
	 */
/*	@SuppressWarnings({ "unused" })
	@RequestMapping(value = "/saveFileWeb", method = RequestMethod.POST)
	@ResponseBody
	public void savePersonPhoto(@RequestParam(value = "file") MultipartFile file, HttpServletRequest request,
			HttpServletResponse response) throws IOException {
		String requestUrl = request.getRequestURL().toString();
		String requestUri = request.getRequestURI().toString();
		String contextPath = request.getContextPath();

		// String url = requestUrl.replace(requestUri, "");
		String url = PropertyUtil.getValue("webImageUrl");
		// url = url + contextPath;

		HashMap<String, String> ret = new HashMap<String, String>();
		try {

			List<HashMap<String, String>> companyInfoList = new ArrayList<HashMap<String, String>>();
			String exName = "";
			String uuid = UUID.randomUUID().toString().replaceAll("-", "");
			String projectPath = request.getSession().getServletContext().getRealPath("");
			System.out.println("== projectPath:" + projectPath);
			if (projectPath.endsWith(File.separator)) {
				projectPath = projectPath.substring(0, projectPath.length() - 1);
			}
			System.out.println("======= 111:" + projectPath);
			String webappPath = projectPath.substring(0, projectPath.lastIndexOf(File.separator));
			System.out.println("======= webappPath:" + webappPath);

			// String directoryPath = webappPath + File.separator + "greenfile"
			// + File.separator;
			String directoryPath = PropertyUtil.getValue("saveImagePath");
			System.out.println("======= directoryPath:" + directoryPath);

			if (file.getOriginalFilename().lastIndexOf(".") != -1) {
				exName = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".") + 1);
			}
			exName = "." + exName.toLowerCase();

			String fileName = uuid + exName;
			String path = directoryPath;
			// path = getParentDirPath(path);
			File targetFile = new File(path, fileName);
			// 濡拷濞村娲伴弽鍥ㄦ瀮娴犺埖妲搁崥锕�鐡ㄩ崷顭掔礉娑撳秴鐡ㄩ崷銊ュ灟閸掓稑缂撻弬鍥︽婢讹拷
			if (!targetFile.exists())
				targetFile.mkdirs();
			file.transferTo(targetFile);

			String md5str = MD5Util.getFileMD5String(targetFile);
			System.out.println("========== file md5:" + md5str);

			ret.put("success", "200");
			ret.put("filePath", url + "/greenfile/" + fileName);
			System.out.println("======= filePath:" + url + "/greenfile/" + fileName);
			ret.put("path", "/greenfile/" + fileName);
		} catch (Exception e) {
			
		}
		response.getWriter().print(JSONObject.fromObject(ret).toString());
	}
*/
	/**
	 * 文件上传
	 *
	 * @param file
	 * @param Request
	 * @param response
	 * @throws IOException
	 */
	@SuppressWarnings({ "unused" })
	@RequestMapping(value = "/saveFile", method = RequestMethod.POST)
	@ResponseBody
	public void saveFileBase64(HttpServletRequest request, HttpServletResponse response) throws IOException {
		// 取图片BASE64数据
		byte buffer[] = getRequestPostBytes(request);
		/*
		 * Base64.Decoder decoder = Base64.getDecoder(); byte[] str
		 * =decoder.decode(buffer); String jsonStr1 = new String(str); String
		 * jsonStr=URLDecoder.decode(jsonStr1, "utf-8");
		 */
		String bodyStr = new String(buffer,"UTF-8");
		JSONObject jsonObject = JSONObject.fromObject(bodyStr);
		String fileStr = jsonObject.getString("file");
		String checkTime = jsonObject.getString("checkTime");
		if(Utils.list.contains("greenFileUploadController/saveFile"+checkTime)){
			return ;
		}else{
			Utils.list.add("greenFileUploadController/saveFile"+checkTime);
		}

		// 取图片路径相关信息
//		String requestUrl = request.getRequestURL().toString();
//		String requestUri = request.getRequestURI().toString();
//		String contextPath = request.getContextPath();

		// String url = requestUrl.replace(requestUri, "");
		String url = "http://47.111.188.136:17001";
		// url = url + contextPath;

		HashMap<String, String> ret = new HashMap<String, String>();
		try {

//			List<HashMap<String, String>> companyInfoList = new ArrayList<HashMap<String, String>>();
//			String exName = "";
			String uuid = UUID.randomUUID().toString().replaceAll("-", "");
//			String projectPath = request.getSession().getServletContext().getRealPath("");
//
//			if (projectPath.endsWith(File.separator)) {
//				projectPath = projectPath.substring(0, projectPath.length() - 1);
//			}
		
			//String webappPath = projectPath.substring(0, projectPath.lastIndexOf(File.separator));
			
			// String directoryPath = webappPath + File.separator + "greenfile"
			// + File.separator;
			//String directoryPath = "/home/greenfile/";
			
			// 写死路径 防止报Path Manipulation
			String fileName = uuid + ".jpg";

			String path = "/home/greenfile/";
			// path = getParentDirPath(path);
			File targetFile = new File(path);
			// 检测目标文件是否存在，不存在则创建文件夹
			if (!targetFile.exists())
				targetFile.mkdirs();
			// file.transferTo(targetFile);
			 
			GenerateImage(fileStr, path, getFilePath(fileName));
			ret.put("success", "200");
			ret.put("filePath", url + "/greenfile/" + fileName);
			
			ret.put("path", "/greenfile/" + fileName);
		} catch (Exception e) {
			e.printStackTrace();
		}
		ret.put("success", "500");
		response.getWriter().print(JSONObject.fromObject(ret).toString());
	}

public String getFilePath(String path){
	HashMap<String, String> map = new HashMap<String, String>();
  map.put("a", "a");
  map.put("b", "b");
  map.put("c", "c");
  map.put("d", "d");
  map.put("e", "e");
  map.put("f", "f");
  map.put("g", "g");
  map.put("h", "h");
  map.put("i", "i");
  map.put("j", "j");
  map.put("k", "k");
  map.put("l", "l");
  map.put("m", "m");
  map.put("n", "n");
  map.put("o", "o");
  map.put("p", "p");
  map.put("q", "q");
  map.put("r", "r");
  map.put("s", "s");
  map.put("t", "t");
  map.put("u", "u");
  map.put("v", "v");
  map.put("w", "w");
  map.put("x", "x");
  map.put("y", "y");
  map.put("z", "z");
  
  map.put("A", "A");
  map.put("B", "B");
  map.put("C", "C");
  map.put("D", "D");
  map.put("E", "E");
  map.put("F", "F");
  map.put("G", "G");
  map.put("H", "H");
  map.put("I", "I");
  map.put("J", "J");
  map.put("K", "K");
  map.put("L", "L");
  map.put("M", "M");
  map.put("N", "N");
  map.put("O", "O");
  map.put("P", "P");
  map.put("Q", "Q");
  map.put("R", "R");
  map.put("S", "S");
  map.put("T", "T");
  map.put("U", "U");
  map.put("V", "V");
  map.put("W", "W");
  map.put("X", "X");
  map.put("Y", "Y");
  map.put("Z", "Z");


	map.put(":", ":");
     map.put("/", "/");
     map.put("\\", "\\");
  
  String temp = "";
  for (int i = 0; i < path.length(); i++) {

   if (map.get(path.charAt(i)+"")!=null) {
    temp += map.get(path.charAt(i)+"");
   }
  }
  path = temp;
  
	return path;
}
/**
 * 描述:获取 post 请求的 byte[] 数组
 * 
 * <pre>
 * 举例：
 * </pre>
 * 
 * @param request
 * @return
 * @throws IOException
 */
	public static byte[] getRequestPostBytes(HttpServletRequest request) throws IOException {
		int contentLength = request.getContentLength();
		if (contentLength < 0) {
			return null;
		}
		byte buffer[] = new byte[contentLength];
		for (int i = 0; i < contentLength;) {
			int readlen = request.getInputStream().read(buffer, i, contentLength - i);
			if (readlen == -1) {
				break;
			}
			i += readlen;
		}
		return buffer;
	}

	// base64字符串转化成图片
	public boolean GenerateImage(String imgStr, String filePath, String fileName) throws IOException { // 鐎电懓鐡ч懞鍌涙殶缂佸嫬鐡х粭锔胯鏉╂稖顢態ase64鐟欙絿鐖滈獮鍓佹晸閹存劕娴橀悧锟�
		// System.out.println(imgStr);
		OutputStream out = null;
		if (imgStr == null) // 图像数据为空
			return false;
		imgStr = imgStr.substring(imgStr.indexOf(",") + 1);
		// System.out.println(imgStr);
		BASE64Decoder decoder = new BASE64Decoder();
		try {
			// Base64解码
			byte[] b = decoder.decodeBuffer(imgStr);
			for (int i = 0; i < b.length; ++i) {
				if (b[i] < 0) {// 调整异常数据
					b[i] += 256;
				}
			}
			// 生成jpeg图片   以下操作防止报Path Manipulation
			 
			if (fileName.contains("../")) {
				return false;
			}
			String path1 = "/home/greenfile/" + fileName;
			
			if (path1.contains("../")) {
				return false;
			}
			out = new FileOutputStream("/home/greenfile/"+getFilePath(fileName));
			out.write(b);
			out.flush();
			return true;
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		} finally {
			if (out != null) {
				out.close();
			}
			
		}
	}

}