package com.ruoyi.device.uav.service;
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import com.dtflys.forest.exceptions.ForestNetworkException;
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import com.dtflys.forest.exceptions.ForestRuntimeException;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JsonMappingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.ruoyi.common.core.redis.RedisCache;
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import com.ruoyi.common.utils.ConfigUtils;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.utils.forest.UavClient;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.codec.binary.Base64;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.http.HttpMethod;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import javax.annotation.PostConstruct;
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import javax.crypto.Cipher;
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import javax.crypto.spec.SecretKeySpec;
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import java.io.IOException;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.Map;
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@Service
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@Slf4j(topic = "uav")
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public class UavService {
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/*uav:
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host: http://112.98.126.2:6100/
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username: kaifabailu
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password: ardkj@2014
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salt: 0123456789012345
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*/
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private String username;//用户名
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private String password;//密码
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private String salt; //盐
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private String host;//uav服务器11
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private Map uavUser;//登录的用户信息
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private ObjectMapper om = new ObjectMapper();
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@Autowired
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private UavClient uavClient;
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@Autowired
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private RedisCache redisCache;
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@PostConstruct
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public void created() {
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getUavConfig();
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this.login();
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}
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private void getUavConfig() {
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this.host = ConfigUtils.getConfigValue("uav_host");
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this.username = ConfigUtils.getConfigValue("uav_username");
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this.password = ConfigUtils.getConfigValue("uav_password");
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this.salt = ConfigUtils.getConfigValue("uav_salt");
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if (StringUtils.isEmpty(this.host) || StringUtils.isEmpty(this.username) || StringUtils.isEmpty(this.password) || StringUtils.isEmpty(this.salt)) {
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throw new RuntimeException("无人机参数配置缺失:");
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}
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}
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public String doUavRequest(HttpMethod method, String url, String data) {
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String res = null;
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Method requestMethod = null;
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//获取method
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try {
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requestMethod = UavClient.class.getMethod(method.name(), String.class, String.class, String.class);
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} catch (NoSuchMethodException e) {
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e.printStackTrace();
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}
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//执行method
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this.getToken();//获取token验证,验证token有效性
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try {
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String token = this.getToken();
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res = (String) requestMethod.invoke(this.uavClient, this.host + url, token, data);
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} catch (IllegalAccessException e) {
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log.error("doUavRequest 访问失败" + e.getMessage());
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} catch (InvocationTargetException e) {
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log.error("doUavRequest 执行失败" + e.getMessage());
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e.printStackTrace();
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}
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return res;
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}
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public Map getUavUser() {
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return redisCache.getCacheMap("uav:uavUser");
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}
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public String getToken() {
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//获取uav用户信息
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Map uavUser = redisCache.getCacheMap("uav:uavUser");
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String token = (String) uavUser.get("access_token");
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//验证token有效性
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try {
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String res = uavClient.GET(this.host+"manage/api/v1/devices", token, "{}");
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//System.out.println(res);
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} catch (ForestNetworkException fe) {
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if (fe.getStatusCode() == 401) {//token失效,重新登录
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this.login();
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//再次获取token
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uavUser = redisCache.getCacheMap("uav:uavUser");
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token = (String) uavUser.get("access_token");
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return token;
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}
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}
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return token;
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}
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public void login() {
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getUavConfig();
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log.debug("登录无人机外部接口");
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String codedPassword = this.Encrypt(password, salt);
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String body = "{\"username\":\"" + username + "\",\"password\":\"" + codedPassword + "\"}";
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log.debug("body:" + body);
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try {
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//uavClient.GET("logout", null, "{}");
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String res = uavClient.POST(this.host+"login", null, body);
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Map resMap = om.readValue(res, Map.class);
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if (resMap != null) {
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redisCache.setCacheMap("uav:uavUser", (Map) resMap.get("data"));
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}
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} catch (ForestRuntimeException e) {
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log.error("无人机连接超时" + e.getMessage());
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} catch (JsonMappingException e) {
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} catch (JsonProcessingException e) {
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} catch (IOException e) {
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}
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}
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public String Encrypt(String sSrc, String sKey) {
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if (sKey == null) {
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return null;
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}
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// 判断Key是否为16位
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if (sKey.length() != 16) {
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return null;
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}
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byte[] encrypted = null;
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try {
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byte[] raw = sKey.getBytes("utf-8");
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SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
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Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式"
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cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
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encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
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} catch (Exception e) {
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e.printStackTrace();
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}
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return new Base64().encodeToString(encrypted);//此处使用BASE64做转码功能，同时能起到2次加密的作用。
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}
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}
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