SpringCloud Gateway API接口安全设计（加密、签名、安全）

防止数据抓包窃取

风险简述

简述：当用户登录时，恶意攻击者可以用抓包工具可以拿到用户提交的表单信息，可以获取用户的账号密码，进而可以恶意访问网站。

RSA 非对称加密

Rsa 简介

RSA加密算法是一种非对称加密算法。在公开密钥加密和电子商业中RSA被广泛使用。RSA是1977年由罗纳德·李维斯特（Ron Rivest）、阿迪·萨莫尔（ Adi Shamir ）和伦纳德·阿德曼（Leonard Adleman）一起提出的。当时他们三人都在麻省理工学院工作。RSA就是他们三人姓氏开头字母拼在一起组成的。

假如有人找到一种快速因数分解的算法的话，那么用RSA加密的信息的可靠性就肯定会极度下降。但找到这样的算法的可能性是非常小的。今天只有短的RSA钥匙才可能被强力方式解破。到目前为止，世界上还没有任何可靠的攻击 RSA算法的方式。只要其钥匙的长度足够长，用RSA加密的信息实际上是不能被解破的。

1983年麻省理工学院在美国为RSA算法申请了专利。这个专利2000年9月21日失效。由于该算法在申请专利前就已经被发表了，在世界上大多数其它地区这个专利权不被承认。

RSA应用过程

非对称算法的在应用的过程如下:

接收方生成公钥和私钥，公钥公开，私钥保留；
发送方将要发送的消息采用公钥加密，得到密文，然后将密文发送给接收方；
接收方收到密文后，用自己的私钥进行解密，获得明文。

RSA工具类

 package com.demo.utils;

import  java .util.Map;

@Slfj
public class RSAUtils {

    public  static  final String PUBLIC_KEY = "public_key";

    public static final String  private _KEY = " Private _key";


    public static Map<String, String> generateRasKey() {
        Map<String,  String > rs = new HashMap<>();
        try {
            // KeyPairGenerator类用于生成公钥和私钥对，基于RSA算法生成对象
            KeyPairGenerator keyPairGen = null;
            keyPairGen = KeyPairGenerator. getInstance ("RSA");
            keyPairGen.initialize(, new SecureRandom());
            // 生成一个密钥对，保存在keyPair中
            KeyPair keyPair = keyPairGen.generateKeyPair();
            // 得到私钥 公钥
            RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
            RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
            String publicKeyString = new String(Base.encodeBase64(publicKey.getEncoded()));
            // 得到私钥字符串
            String privateKeyString = new String(Base.encodeBase64((privateKey.getEncoded())));
            // 将公钥和私钥保存到Map
            rs.put(PUBLIC_KEY, publicKeyString);
            rs.put(PRIVATE_KEY, privateKeyString);
        } catch ( Exception  e) {
            log.error("RsaUtils invoke genKeyPair failed.", e);
            throw new RsaException("RsaUtils invoke genKeyPair failed.");
        }
        return rs;
    }


    public static String encrypt(String str, String publicKey) {
        try {
            //base编码的公钥
             byte [] decoded = Base64. decode Base64(publicKey);
            RSAPublicKey pubKey = (RSAPublicKey) KeyFactory.getInstance("RSA").generatePublic(new XEncodedKeySpec(decoded));
            //RSA加密
            Cipher cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.ENCRYPT_MODE, pubKey);
            return Base.encodeBase64String(cipher.doFinal(str.getBytes(Standard charset s.UTF_8)));
        } catch (Exception e) {
            log.error("RsaUtils invoke encrypt failed.", e);
            throw new RsaException("RsaUtils invoke encrypt failed.");
        }
    }


    public static String decrypt(String str, String privateKey) {

        try {
            //位解码加密后的 字符串 
            byte[] inputByte = Base.decodeBase64(str.getBytes(StandardCharsets.UTF_8));
            //base编码的私钥
            byte[] decoded = Base.decodeBase64(privateKey);
            RSAPrivateKey priKey = (RSAPrivateKey) KeyFactory.getInstance("RSA").generatePrivate(new PKCSEncodedKeySpec(decoded));
            //RSA解密
            Cipher cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.DECRYPT_MODE, priKey);
            return new String(cipher.doFinal(inputByte));
        } catch (Exception e) {
            log.error("RsaUtils invoke decrypt failed.", e);
            throw new RsaException("RsaUtils invoke decrypt failed.");
        }

    }

}

RsaException: 是自定义异常

 @Getter
public class RsaException  extends  RuntimeException {

    private final String message;

    public RsaException(String message) {
        this.message = message;
    }

}

1.2.4 UT

 package com.rosh;


public class RsaTest {

    /**
     *  用测试生成的公钥，私钥赋值
     */    private static final String PUBLIC_KEY = "MIGfMAGCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFtTlL61IqIGd+fRLUhJ0MjsqFXFJswCohJ45m51WvbxDPRP3gllW0WChk74D5JEOpMDSWo4C7RfoGlBRNW7kQ6qYGukYZ5jgYpzoT0+gp3on96fQXEyQJysv9xiTPIdmSXXVVj1HAOJw29RbzxIVKUSzzPXvEtXRTtCC1+wkAJQIDAQAB";

    private static final String PRIVATE_KEY = "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";


    /**
     *  生成公钥私钥
     */    @Test
    public  void  generateRsaKey() {
        Map<String, String> map = RSAUtils.generateRasKey();
        System.out.println("随机生成的公钥为:" + map.get(RSAUtils.PUBLIC_KEY));
        System.out.println("随机生成的私钥为:" + map.get(RSAUtils.PRIVATE_KEY));

    }

    /**
     * 加密: Yeidauky/iN/whevov2+ntzXJKAp2AHfESu5ixnDqH5iB7ww+TcfqJpDfkPHfb12Y0sVXw0gBHNJ4inkh7l2/SJBze3pKQU/mg3oyDokTia3JZIs+e80/iJcSfN+yA1JaqY+eJPYiBiOGAF2S6x0ynvJg/Wj0fwp2Tq3PDzRMo=
     */    @Test
    public void testEncrypt() {
         json Object jsonObject = new JSONObject();
        jsonObject.put("username", "rosh");
        jsonObject.put("password", "");
        String str = jsonObject.toJSONString();
        String encrypt = RSAUtils.encrypt(str, PUBLIC_KEY);
        System.out.println(encrypt);
    }

    @Test
    public void testDecrypt() {

        String decrypt = RSAUtils.decrypt("Yeidauky/iN/whevov2+ntzXJKAp2AHfESu5ixnDqH5iB7ww+TcfqJpDfkPHfb12Y0sVXw0gBHNJ4inkh7l2/SJBze3pKQU/mg3oyDokTia3JZIs+e80/iJcSfN+yA1JaqY+eJPYiBiOGAF2S6x0ynvJg/Wj0fwp2Tq3PDzRMo=",
                PRIVATE_KEY);

        System.out.println(decrypt);
    }


}

SpringCloud Gateway API接口安全设计（加密、签名、安全）

案例

SpringCloud Gateway + Spring Boot + Nacos+ redis

前端登录代码

后端把公钥跟前端约定好：

 <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-">
    <title>登录页面</title>

</head>
<body>

<h>登录</h1>


<from id="from">
    账号：<input id="username" type="text"/>
    <br/>
    密码：<input id="password" type="password"/>
    <br/>
    <input id="btn_login" type="button" value="登录"/>
</from>



< script  src="js/ jquery .min.js"></script>
<script src="js/jsencrypt.js"></script>


<script type="text/javascript">
    var encrypt = new JSEncrypt();
    encrypt.setPublicKey("MIGfMAGCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFtTlL61IqIGd+fRLUhJ0MjsqFXFJswCohJ45m51WvbxDPRP3gllW0WChk74D5JEOpMDSWo4C7RfoGlBRNW7kQ6qYGukYZ5jgYpzoT0+gp3on96fQXEyQJysv9xiTPIdmSXXVVj1HAOJw29RbzxIVKUSzzPXvEtXRTtCC1+wkAJQIDAQAB");
    $("#btn_login").click(function () {
        const username = $("#username").val();
        const password = $("#password").val();
        const form = {};
        form.username = username;
        form.password = password;
        $.ajax({
            url: "#;,
            data: encrypt.encrypt(JSON.stringify(form)),
            type: "POST",
            dataType: "json",
            contentType: "application/json;charset=utf-",
            success: function (data) {
                console.log(data);
            }
        });
    })
</script>


</body>
</html>

前端查询代码

设定公钥、token，token是登录成功后返回的值

 <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-">
    <title>查询测试</title>
</head>
<body>


id：<input id="id_txt" type="text"/>
<input id="btn_search" type="button" value="查询"/>


<script src="js/jquery.min.js"></script>
<script src="js/jsencrypt.js"></script>
<script type="text/javascript">
    var encrypt = new JSEncrypt();
    encrypt.setPublicKey("MIGfMAGCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFtTlL61IqIGd+fRLUhJ0MjsqFXFJswCohJ45m51WvbxDPRP3gllW0WChk74D5JEOpMDSWo4C7RfoGlBRNW7kQ6qYGukYZ5jgYpzoT0+gp3on96fQXEyQJysv9xiTPIdmSXXVVj1HAOJw29RbzxIVKUSzzPXvEtXRTtCC1+wkAJQIDAQAB");

    $("#btn_search").click(function () {
        const id = $("#id_txt").val();
        const param = "id=" + id + "&requestId=" + getUuid();
        encrypt.encrypt(param);
        const url = "#; + encrypt.encrypt(param);
        $.ajax({
            url: url,
            beforeSend: function (XMLHttpRequest) {
                 XMLHttpRequest .setRequest Header ("token", "eyJhbGciOiJIUzI1NiJ9.eyJqdGkiOiIzYzE1ODczYS1iMGUxLTQyNzctYTRjOS1kYTMwNjdiYmE0NWIiLCJpYXQiOjE2MzUzMDYwMDAsInN1YiI6IntcInBhc3N3b3JkXCI6XCIxMjM0NTZcIixcInVzZXJJZFwiOjEsXCJ1c2VybmFtZVwiOlwiYWRtaW5cIn0iLCJleHAiOjE2MzU1NjUyMDB9.fIQi_cV2ZMszBVFV4GoIpGhCSENQKrDi8DsbArk7mGk");
            },
            type: "GET",
            success: function (data) {
                console.log(data);
            }
        });
    });


    function getUuid() {
        var s = [];
        var hexDigits = "abcdef";
        for (var i =; i < 32; i++) {
            s[i] = hexDigits.substr(Math.floor(Math.random() *x10), 1);
        }
        s[] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
        s[] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
        s[] = s[13] = s[18] = s[23];
        var uuid = s.join("");
        return uuid;
    }

</script>


</body>
</html>

GatewayFilterConfig

解密前端传来的参数并修改传参

 package com.demo.gateway.config;

public class GatewayFilterConfig implements GlobalFilter, Ordered {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        // 如果是登录不校验Token
        String requestUrl = exchange.getRequest().getPath().value();
        AntPathMatcher pathMatcher = new AntPathMatcher();
         if  (!pathMatcher.match("/user/login", requestUrl)) {
            String token = exchange.getRequest().getHeaders().getFirst(UserConstant.TOKEN);
            Claims claim = TokenUtils.getClaim(token);
            if (StringUtils.isBlank(token) || claim == null) {
                return FilterUtils.invalidToken(exchange);
            }
        }
        // 修改请求参数,并获取请求参数
        try {
            updateRequestParam(exchange);
        } catch (Exception e) {
            return FilterUtils.invalidUrl(exchange);
        }
        // 获取请求体,修改请求体
        ServerRequest serverRequest = ServerRequest.create(exchange, HandlerStrategies.withDefaults().messageReaders());
        Mono<String> modifiedBody = serverRequest.bodyToMono(String.class).flatMap(body -> {
            String encrypt = RSAUtils.decrypt(body, RSAConstant.PRIVATE_KEY);
            return Mono.just(encrypt);
        });

        //创建BodyInserter修改请求体
        BodyInserter<Mono<String>, ReactiveHttpOutputMessage> bodyInserter = BodyInserters.fromPublisher(modifiedBody, String.class);
        HttpHeaders headers = new HttpHeaders();
        headers.putAll(exchange.getRequest().getHeaders());
        headers.remove(HttpHeaders.CONTENT_LENGTH);
        //创建CachedBodyOutputMessage并且把请求param加入
        CachedBodyOutputMessage outputMessage = new CachedBodyOutputMessage(exchange, headers);
        return bodyInserter.insert(outputMessage, new BodyInserterContext()).then(Mono.defer(() -> {
            ServerHttpRequestDecorator decorator = new ServerHttpRequestDecorator(exchange.getRequest()) {
                @Override
                public Flux<DataBuffer> getBody() {
                    return outputMessage.getBody();
                }
            };
            return chain.filter(exchange.mutate().request(decorator).build());
        }));

    }

    /**
     * 修改前端传的参数
     */    private void updateRequestParam(ServerWebExchange exchange) throws NoSuchFieldException, IllegalAccessException {
        ServerHttpRequest request = exchange.getRequest();
        URI uri = request.getURI();
        String query = uri.getQuery();
        if (StringUtils.isNotBlank(query) && query.contains("param")) {
            String[] split = query.split("=");
            String param = RSAUtils.decrypt(split[], RSAConstant.PRIVATE_KEY);
            Field targetQuery = uri.getClass().getDeclaredField("query");
            targetQuery.setAccessible(true);
            targetQuery.set(uri, param);
        }
    }


    @Override
    public int getOrder() {
        return;
    }
}

GateWay 统一异常

 public abstract class AbstractExceptionHandler {
    protected JSONObject buildErrorMap(Throwable ex) {
        JSONObject json = new JSONObject();
        if (ex instanceof RSAException || ex instanceof IllegalArgumentException) {
            json.put("code", HttpStatus.BAD_REQUEST.value());
            if (StringUtils.isNotBlank(ex.getMessage())){
                json.put("msg", ex.getMessage());
            }else {
                json.put("msg", "无效的请求");
            }

        } else {
            json.put("code", HttpStatus.BAD_REQUEST.value());
            json.put("msg", "未知错误联系管理员");
        }
        return json;
    }

}

@Configuration
public class GatewayExceptionConfig {

    @Primary
    @Bean
    @Order(Ordered.HIGHEST_PRECEDENCE)
    public ErrorWebExceptionHandler errorWebExceptionHandler(ObjectProvider<List<ViewResolver>> viewResolversProvider,
                                                             ServerCodecConfigurer serverCodecConfigurer) {
        GatewayExceptionHandler gatewayExceptionHandler = new GatewayExceptionHandler();
        gatewayExceptionHandler.setViewResolvers(viewResolversProvider.getIfAvailable(Collections::emptyList));
        gatewayExceptionHandler.setMessageWriters(serverCodecConfigurer.getWriters());
        gatewayExceptionHandler.setMessageReaders(serverCodecConfigurer.getReaders());
        return gatewayExceptionHandler;
    }
}

package com.demo.gateway.exception;

import com.alibaba.fastjson.JSONObject;
import lombok.extern.slfj.Slf4j;
import org.springframework.boot.web.reactive.error.ErrorWebExceptionHandler;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.codec.HttpMessageReader;
import org.springframework.http.codec.HttpMessageWriter;
import org.springframework.util.Assert;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.server.RequestPredicates;
import org.springframework.web.reactive.function.server.RouterFunctions;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import org.springframework.web.reactive.result.view.ViewResolver;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.Collections;
import java.util.List;
import java.util.Map;


@Slfj
public class GatewayExceptionHandler extends AbstractExceptionHandler implements ErrorWebExceptionHandler {


    private List<HttpMessageReader<?>> messageReaders = Collections.emptyList();


    private List<HttpMessageWriter<?>> messageWriters = Collections.emptyList();


    private List<ViewResolver> viewResolvers = Collections.emptyList();


    private ThreadLocal<JSONObject> exceptionHandlerResult = new ThreadLocal<>();


    public void setMessageReaders(List<HttpMessageReader<?>> messageReaders) {
        Assert.notNull(messageReaders, "'messageReaders' must not be null");
        this.messageReaders = messageReaders;
    }


    public void setViewResolvers(List<ViewResolver> viewResolvers) {
        this.viewResolvers = viewResolvers;
    }


    public void setMessageWriters(List<HttpMessageWriter<?>> messageWriters) {
        Assert.notNull(messageWriters, "'messageWriters' must not be null");
        this.messageWriters = messageWriters;
    }

    @Override
    public Mono<Void> handle(ServerWebExchange exchange, Throwable ex) {
        JSONObject errorInfo = super.buildErrorMap(ex);
        if (exchange.getResponse().isCommitted()) {
            return Mono.error(ex);
        }
        exceptionHandlerResult.set(errorInfo);
        ServerRequest newRequest = ServerRequest.create(exchange, this.messageReaders);
        return RouterFunctions.route(RequestPredicates.all(), this::renderErrorResponse).route(newRequest)
                .switchIfEmpty(Mono.error(ex))
                .flatMap(handler -> handler.handle(newRequest))
                .flatMap(response -> write(exchange, response));

    }


    protected Mono<ServerResponse> renderErrorResponse(ServerRequest request) {
        Map<String, Object> result = exceptionHandlerResult.get();
        return ServerResponse.status(HttpStatus.OK)
                .contentType(MediaType.APPLICATION_JSON)
                .body(BodyInserters.fromValue(result));
    }


    private Mono<? extends Void> write(ServerWebExchange exchange,
                                       ServerResponse response) {
        exchange.getResponse().getHeaders().setContentType(response.headers().getContentType());
        return response.writeTo(exchange, new ResponseContext());
    }

    private class ResponseContext implements ServerResponse.Context {

        @Override
        public List<HttpMessageWriter<?>> messageWriters() {
            return GatewayExceptionHandler.this.messageWriters;
        }

        @Override
        public List<ViewResolver> viewResolvers() {
            return GatewayExceptionHandler.this.viewResolvers;
        }
    }
}

JAVA业务代码

 @RestController
@RequestMapping("/user")
public class UserController {


    @Autowired
    private UserService userService;

    @PostMapping("/login")
    public String login(@RequestBody UserForm userForm) {

        return userService.login(userForm);
    }

    @GetMapping("/detail")
    public JSONObject detail(@RequestParam("id") Long id) {

        return userService.detail(id);
    }
}

@Service
public class UserService {


    private static final String USERNAME = "admin";

    private static final String PASSWORD = "";

    private static final Long USER_ID =L;


    /**
     * 模拟 登录 username = admin, password =,user_id 1L 登录成功 返回token
     */    public String login(UserForm userForm) {

        String username = userForm.getUsername();
        String password = userForm.getPassword();

        if (USERNAME.equals(username) && PASSWORD.equals(password)) {
            JSONObject userInfo = new JSONObject();
            userInfo.put("username", USERNAME);
            userInfo.put("password", PASSWORD);
            userInfo.put("userId", USER_ID);
            return TokenUtils.createToken(userInfo.toJSONString());
        }

        return "账号密码不正确";
    }


    public JSONObject detail(Long id) {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("id", id);
        jsonObject.put("name", "admin");
        return jsonObject;
    }
}

测试

SpringCloud Gateway API接口安全设计（加密、签名、安全）

查询：

SpringCloud Gateway API接口安全设计（加密、签名、安全）

设置URL有效时长

为了增强URL安全性，前端在header中添加时间戳。

前端代码

在header中添加时间戳

SpringCloud Gateway API接口安全设计（加密、签名、安全）

2.2 后端验证时间戳

  private Long getDateTimestamp(HttpHeaders httpHeaders) {
        List<String> list = httpHeaders.get("timestamp");
        if (CollectionUtils.isEmpty(list)) {
            throw new IllegalArgumentException("拒绝服务");
        }
        long timestamp = Long.parseLong(list.get());
        long currentTimeMillis = System.currentTimeMillis();
        //有效时长为分钟
        if (currentTimeMillis - timestamp > * 60 * 5) {
            throw new IllegalArgumentException("拒绝服务");
        }
        return timestamp;
    }

测试不传时间戳

SpringCloud Gateway API接口安全设计（加密、签名、安全）

确保URL唯一性

确保URL唯一性，前端请求中增加UUID，后端存入redis，有效时长为5分钟，5分钟重复提交拒绝服务

修改前端请求参数

3.2 后端增加验证RequestId

 private String getRequestId(HttpHeaders headers) {
        List<String> list = headers.get("requestId");
        if (CollectionUtils.isEmpty(list)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        String requestId = list.get();
        //如果requestId存在redis中直接返回
        String temp = redisTemplate.opsForValue().get(requestId);
        if (StringUtils.isNotBlank(temp)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        redisTemplate.opsForValue().set(requestId, requestId,, TimeUnit.MINUTES);
        return requestId;
    }

增加签名

最后一步，添加签名

前端增加签名

跟前端约定好，json数据按照ASCII升序排序。

登录页面：

 <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-">
    <title>登录页面</title>

</head>
<body>

<h>登录</h1>


<from id="from">
    账号：<input id="username" type="text"/>
    <br/>
    密码：<input id="password" type="password"/>
    <br/>
    <input id="btn_login" type="button" value="登录"/>
</from>




<script src="js/jquery.min.js"></script>
<script src="js/jsencrypt.js"></script>
<script src="js/md.min.js"></script>

<script type="text/javascript">
    var encrypt = new JSEncrypt();
    encrypt.setPublicKey("MIGfMAGCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFtTlL61IqIGd+fRLUhJ0MjsqFXFJswCohJ45m51WvbxDPRP3gllW0WChk74D5JEOpMDSWo4C7RfoGlBRNW7kQ6qYGukYZ5jgYpzoT0+gp3on96fQXEyQJysv9xiTPIdmSXXVVj1HAOJw29RbzxIVKUSzzPXvEtXRTtCC1+wkAJQIDAQAB");
    $("#btn_login").click(function () {
        //表单
        const username = $("#username").val();
        const password = $("#password").val();
        const form = {};
        form.username = username;
        form.password = password;
        //生成签名，也可以加盐
        const timestamp = Date.parse(new Date());
        const data = JSON.stringify(sort_ASCII(form));
        const requestId = getUuid();
        const sign = MD(data + requestId + timestamp);


        $.ajax({
            url: "#;,
            beforeSend: function (XMLHttpRequest) {
                XMLHttpRequest.setRequestHeader("timestamp", timestamp);
                XMLHttpRequest.setRequestHeader("requestId", requestId);
                XMLHttpRequest.setRequestHeader("sign", sign);
            },
            data: encrypt.encrypt(data),
            type: "POST",
            dataType: "json",
            contentType: "application/json;charset=utf-",
            success: function (data) {
                console.log(data);
            }
        });
    });


    function getUuid() {
        var s = [];
        var hexDigits = "abcdef";
        for (var i =; i < 32; i++) {
            s[i] = hexDigits.substr(Math.floor(Math.random() *x10), 1);
        }
        s[] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
        s[] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
        s[] = s[13] = s[18] = s[23];
        var uuid = s.join("");
        return uuid;
    }

    function sort_ASCII(obj) {
        var arr = new Array();
        var num =;
        for (var i in obj) {
            arr[num] = i;
            num++;
        }
        var sortArr = arr.sort();
        var sortObj = {};
        for (var i in sortArr) {
            sortObj[sortArr[i]] = obj[sortArr[i]];
        }
        return sortObj;
    }

</script>


</body>
</html>

增强读取Body类

 /**
 * @Description:
 * @Author: Rosh
 * @Date:/10/27 11:03
 */public class MyCachedBodyOutputMessage extends CachedBodyOutputMessage {

    private Map<String, Object> paramMap;

    private Long dateTimestamp;

    private String requestId;

    private String sign;

    public MyCachedBodyOutputMessage(ServerWebExchange exchange, HttpHeaders httpHeaders) {
        super(exchange, httpHeaders);
    }

    public void initial(Map<String, Object> paramMap, String requestId, String sign, Long dateTimestamp) {
        this.paramMap = paramMap;
        this.requestId = requestId;
        this.sign = sign;
        this.dateTimestamp = dateTimestamp;
    }


    public Map<String, Object> getParamMap() {
        return paramMap;
    }

    public Long getDateTimestamp() {
        return dateTimestamp;
    }

    public String getRequestId() {
        return requestId;
    }

    public String getSign() {
        return sign;
    }
}

4.3 修改GatewayFilterConfig

 package com.demo.gateway.config;


public class GatewayFilterConfig implements GlobalFilter, Ordered {


    @Autowired
    private RedisTemplate<String, String> redisTemplate;


    private static final String ERROR_MESSAGE = "拒绝服务";


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        // 获取时间戳
        Long dateTimestamp = getDateTimestamp(exchange.getRequest().getHeaders());
        // 获取RequestId
        String requestId = getRequestId(exchange.getRequest().getHeaders());
        // 获取签名
        String sign = getSign(exchange.getRequest().getHeaders());
        // 如果是登录不校验Token
        String requestUrl = exchange.getRequest().getPath().value();
        AntPathMatcher pathMatcher = new AntPathMatcher();
        if (!pathMatcher.match("/user/login", requestUrl)) {
            String token = exchange.getRequest().getHeaders().getFirst(UserConstant.TOKEN);
            Claims claim = TokenUtils.getClaim(token);
            if (StringUtils.isBlank(token) || claim == null) {
                return FilterUtils.invalidToken(exchange);
            }
        }
        // 修改请求参数,并获取请求参数
        Map<String, Object> paramMap;
        try {
            paramMap = updateRequestParam(exchange);
        } catch (Exception e) {
            return FilterUtils.invalidUrl(exchange);
        }
        // 获取请求体,修改请求体
        ServerRequest serverRequest = ServerRequest.create(exchange, HandlerStrategies.withDefaults().messageReaders());
        Mono<String> modifiedBody = serverRequest.bodyToMono(String.class).flatMap(body -> {
            String encrypt = RSAUtils.decrypt(body, RSAConstant.PRIVATE_KEY);
            JSONObject jsonObject = JSON.parseObject(encrypt);
            for (Map.Entry<String, Object> entry : jsonObject.entrySet()) {
                paramMap.put(entry.getKey(), entry.getValue());
            }
            checkSign(sign, dateTimestamp, requestId, paramMap);
            return Mono.just(encrypt);
        });

        //创建BodyInserter修改请求体

        BodyInserter<Mono<String>, ReactiveHttpOutputMessage> bodyInserter = BodyInserters.fromPublisher(modifiedBody, String.class);
        HttpHeaders headers = new HttpHeaders();
        headers.putAll(exchange.getRequest().getHeaders());
        headers.remove(HttpHeaders.CONTENT_LENGTH);
        //创建CachedBodyOutputMessage并且把请求param加入,初始化校验信息
        MyCachedBodyOutputMessage outputMessage = new MyCachedBodyOutputMessage(exchange, headers);
        outputMessage.initial(paramMap, requestId, sign, dateTimestamp);
        return bodyInserter.insert(outputMessage, new BodyInserterContext()).then(Mono.defer(() -> {
            ServerHttpRequestDecorator decorator = new ServerHttpRequestDecorator(exchange.getRequest()) {
                @Override
                public Flux<DataBuffer> getBody() {
                    Flux<DataBuffer> body = outputMessage.getBody();
                    if (body.equals(Flux.empty())) {
                        //验证签名
                        checkSign(outputMessage.getSign(), outputMessage.getDateTimestamp(), outputMessage.getRequestId(), outputMessage.getParamMap());
                    }
                    return outputMessage.getBody();
                }
            };
            return chain.filter(exchange.mutate().request(decorator).build());
        }));

    }

    public void checkSign(String sign, Long dateTimestamp, String requestId, Map<String, Object> paramMap) {
        String str = JSON.toJSONString(paramMap) + requestId + dateTimestamp;
        String tempSign = MdUtils.getMD5(str.getBytes());
        if (!tempSign.equals(sign)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
    }

    /**
     * 修改前端传的参数
     */    private Map<String, Object> updateRequestParam(ServerWebExchange exchange) throws NoSuchFieldException, IllegalAccessException {
        ServerHttpRequest request = exchange.getRequest();
        URI uri = request.getURI();
        String query = uri.getQuery();
        if (StringUtils.isNotBlank(query) && query.contains("param")) {
            String[] split = query.split("=");
            String param = RSAUtils.decrypt(split[], RSAConstant.PRIVATE_KEY);
            Field targetQuery = uri.getClass().getDeclaredField("query");
            targetQuery.setAccessible(true);
            targetQuery.set(uri, param);
            return getParamMap(param);
        }
        return new TreeMap<>();
    }


    private Map<String, Object> getParamMap(String param) {
        Map<String, Object> map = new TreeMap<>();
        String[] split = param.split("&");
        for (String str : split) {
            String[] params = str.split("=");
            map.put(params[], params[1]);
        }
        return map;
    }


    private String getSign(HttpHeaders headers) {
        List<String> list = headers.get("sign");
        if (CollectionUtils.isEmpty(list)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        return list.get();
    }

    private Long getDateTimestamp(HttpHeaders httpHeaders) {
        List<String> list = httpHeaders.get("timestamp");
        if (CollectionUtils.isEmpty(list)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        long timestamp = Long.parseLong(list.get());
        long currentTimeMillis = System.currentTimeMillis();
        //有效时长为分钟
        if (currentTimeMillis - timestamp > * 60 * 5) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        return timestamp;
    }

    private String getRequestId(HttpHeaders headers) {
        List<String> list = headers.get("requestId");
        if (CollectionUtils.isEmpty(list)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        String requestId = list.get();
        //如果requestId存在redis中直接返回
        String temp = redisTemplate.opsForValue().get(requestId);
        if (StringUtils.isNotBlank(temp)) {
            throw new IllegalArgumentException(ERROR_MESSAGE);
        }
        redisTemplate.opsForValue().set(requestId, requestId,, TimeUnit.MINUTES);
        return requestId;
    }


    @Override
    public int getOrder() {
        return;
    }
}

测试登录

发现验签成功

SpringCloud Gateway API接口安全设计（加密、签名、安全）

测试查询

验签成功

SpringCloud Gateway API接口安全设计（加密 、签名、安全）

防止数据抓包窃取

风险简述

RSA 非对称加密

Rsa 简介

RSA应用过程

RSA工具类

1.2.4 UT

案例

前端登录代码

前端查询代码

GatewayFilterConfig

GateWay 统一异常

JAVA业务代码

测试

设置URL有效时长

前端代码

2.2 后端验证时间戳

测试不传时间戳

确保URL唯一性

修改前端请求参数

3.2 后端增加验证RequestId

增加签名

增强读取Body类

4.3 修改GatewayFilterConfig

测试登录

测试查询

SpringCloud Gateway API接口安全设计（加密、签名、安全）