package com.doumee.device;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONArray;
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import com.alibaba.fastjson.JSONObject;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.nio.charset.StandardCharsets;
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import java.security.MessageDigest;
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import java.util.*;
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@RestController
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@RequestMapping("/electronic")
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public class ElectronicNotifyController {
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@RequestMapping("/notify")
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public String notify(String response_content, String timestamp, String sign) {
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System.out.println("timestamp: " + timestamp);
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System.out.println("response_content: " + response_content);
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System.out.println("sign: " + sign);
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// 验签
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if(!checkSign(response_content, timestamp, sign)) {
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System.out.println("sign check failed");
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return "sign check failed";
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}
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System.out.println("sign check success");
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List<Map<String, Object>> responseContent= new ArrayList<>();
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JSONArray contentArray = JSON.parseArray(response_content);
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for(int i = 0; i < contentArray.size(); ++i) {
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HashMap<String, Object> contentMap = new HashMap<>();
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JSONObject contentObject = contentArray.getJSONObject(i);
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Set<String> keySet = contentObject.keySet();
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for(String key: keySet) {
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contentMap.put(key, contentObject.getObject(key, Object.class));
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}
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responseContent.add(contentMap);
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}
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System.out.println("接收异步通知数据:" + responseContent);
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return "SUCCESS";
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}
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private boolean checkSign(String response_content, String timestamp, String sign) {
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// 随机字符串 后台获取
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String nonce = "XOfX547SeCIlhufeeBBwgZIN";
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String buf = response_content + timestamp + nonce;
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String encode = getMD5(buf);
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return encode.equals(sign);
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}
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// md5加密
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private String getMD5(String password) {
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MessageDigest md5 = null;
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try {
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md5 = MessageDigest.getInstance("MD5");
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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byte[] byteArray = password.getBytes(StandardCharsets.UTF_8);
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byte[] md5Bytes = md5.digest(byteArray);
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StringBuilder hexValue = new StringBuilder();
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for (byte md5Byte : md5Bytes) {
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int val = ((int) md5Byte) & 0xff;
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if (val < 16) {
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hexValue.append("0");
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}
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hexValue.append(Integer.toHexString(val));
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}
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return hexValue.toString();
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}
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}
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