推广

Vue、Springboot实现接口签名

iseeyu3年前 (2024-02-22)推广175

接口签名示意图

客户端提交请求时，将以下参数按照约定签名方式进行签名，随后将参数和签名一同提交服务端：

1.请求头部分（header）
appid：针对不同的调用方分配不同的appid。
noce：请求的流水号，防止重复提交。
timestamp：请求时间戳，验证请求是否已超时失效。

2.数据部分
Path：按照path中的参数将所有key=value进行拼接。
Query：按照所有key=value进行拼接。
Form：按照所有key=value进行拼接
Body：Json，按照所有key=value进行拼接。String，整个字符串作为一个拼接。

签名

服务端提接收交请求后，同样通过接收的“请求头部分”、“数据部分”的参数进行拼接。随后验证客户端提交的签名是否正确。

2、代码实现

客户端（Vue）首先需要安装“jsrsasign”库，以便实现 RSA 加密、解密、签名、验签等功能。

官方地址：http://kjur.github.io/jsrsasign/
执行以下命令：

npm install jsrsasign -save

安装完成后，封装sign.js

import {KJUR, KEYUTIL, hex2b64, b64tohex} from 'jsrsasign'

// 签名算法
const ALGORITHM = 'SHA256withRSA'

// 私钥签名
const RSA_SIGN = (privateKey, src) => {
    const signature = new KJUR.crypto.Signature({'alg': ALGORITHM})
    // 来解析密钥
    const priKey = KEYUTIL.getKey(privateKey) 
    signature.init(priKey)
    // 传入待签明文
    signature.updateString(src) 
    const a = signature.sign()
    // 转换成base64，返回
    return hex2b64(a) 
}
// 公钥验签
const RSA_VERIFY_SIGN = (publicKey, src, data) => {
    const signature = new KJUR.crypto.Signature({'alg': ALGORITHM, 'prvkeypem': publicKey})
    signature.updateString(src) 
    return signature.verify(b64tohex(data))
}

export {
    RSA_SIGN,
    RSA_VERIFY_SIGN
}

客户端（Vue）通过sign.js进行加签、验签。

const src = '我是一段测试字符串2'

const publicKey = '-----BEGIN PUBLIC KEY-----\n' +
            'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC35wxzdTzseajkYL06hEKBCEJu\n' +
            'JQ/nySId2oTnsxbLiSTEjpAESSbML1lqkKaIwjrSFZzyLMH6DirsoEQcATqqoCDU\n' +
            '/H9QNVb5jMSAxxdQusQkTWz6k07bEuy1ppVjpGxNi8o2OGNd+lwPC/hOSDR7lpfm\n' +
            'aXLIjEwKSXzil7YAHQIDAQAB\n' +
            '-----END PUBLIC KEY-----'

const privateKey = '-----BEGIN PRIVATE KEY-----\n' +
            'MIICdQIBADANBgkqhkiG9w0BAQEFAASCAl8wggJbAgEAAoGBALfnDHN1POx5qORg\n' +
            'vTqEQoEIQm4lD+fJIh3ahOezFsuJJMSOkARJJswvWWqQpojCOtIVnPIswfoOKuyg\n' +
            'RBwBOqqgINT8f1A1VvmMxIDHF1C6xCRNbPqTTtsS7LWmlWOkbE2LyjY4Y136XA8L\n' +
            '+E5INHuWl+ZpcsiMTApJfOKXtgAdAgMBAAECgYB2PAcGSC7mPoW2ZvfiIlx7hurm\n' +
            '0885D1hu5yohqUOTklXgRWQUTU+zYRHU8LERJgcZQKoKDXqdIPS584Q2mRe0uZMr\n' +
            'vaiaBVEnHQreUJUQ8UN12pPUdBHDZvOk3L7/fZHk6A8uy5e09p2rsn+Vfki3zijp\n' +
            '7Pd758HMtjuiHBb2QQJBAOuN6jdWBr/zb7KwM9N/cD1jJd6snOTNsLazH/Z3Yt0T\n' +
            'jlsFmRJ6rIt/+jaLKG6YTR8SFyW5LIQTbreeQHPw4FECQQDH3Wpd/mBMMcgpxLZ0\n' +
            'F5p1ieza+VA5fbxkQ0hdubEP26B6YwhkTB/xMSOwEjmUI57kfgOTvub36/peb8rI\n' +
            'JdwNAkB3fzwlrGeqMzYkIU15avomuki46TqCvHJ8jOyXHUOzQbuDI5jfDgrAjkEC\n' +
            'MKBnUq41J/lEMueJbU5KqmaqKrWxAkAyexlHnl1iQVymOBpBXkjUET8y26/IpZp0\n' +
            '1I2tpp4zPCzfXK4c7yFOQTQbX68NXKXgXne21Ivv6Ll3KtNUFEPtAkBcx5iWU430\n' +
            '0/s6218/enaa8jgdqw8Iyirnt07uKabQXqNnvbPYCgpeswEcSvQqMVZVKOaMrjKO\n' +
            'G319Es83iq/m\n' +
            '-----END PRIVATE KEY-----\n'


console.log('明文:', src)
const data = RSA_SIGN(privateKey, src)
console.log('签名后的结果:', data)

const res = RSA_VERIFY_SIGN(publicKey, src, data)
console.log('验签结果:', res)

服务端（Spring boot）接收请求后，需要对数据和签名，进行验证。

首先引入依赖——hutool工具包，Hutool是一个Java工具包，也只是一个工具包，它帮助我们简化每一行代码，减少每一个方法，让Java语言也可以“甜甜的”。
官网地址：https://www.hutool.cn/
在pom.xml下增加如下配置：

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.3.5</version>
</dependency>

服务端（Spring boot）首先要获取客户端（Vue）请求的数据，上文已经描述了请求的数据有两部分，分别是“请求头部分”、“数据部分”。所以需要配置拦截器，对以上两部分进行获取。
配置拦截器（MyInterceptor.java），代码如下：

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.util.StreamUtils;
import org.springframework.web.servlet.HandlerInterceptor;

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

@Slf4j
@Component
public class MyInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //获取请求参数
        String queryString = request.getQueryString();
        log.info("请求参数:{}", queryString);

        // 获取header
        log.info("key:{}",request.getHeader("timestamp"));

        MyHttpServletRequestWrapper myRequestWrapper = new MyHttpServletRequestWrapper(request);
        //获取请求body
        byte[] bodyBytes = StreamUtils.copyToByteArray(myRequestWrapper.getInputStream());
        String body = new String(bodyBytes, request.getCharacterEncoding());

        log.info("请求体：{}", body);

        return true;
    }
}

在获取“请求体body”时，由于“HttpServletRequest”只能读取一次，拦截器读取后，后续Controller在读取时为空，所以需要重写HttpServletRequestWrapper：

import org.springframework.util.StreamUtils;

import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import java.io.*;


public class MyHttpServletRequestWrapper extends HttpServletRequestWrapper {

    /**
     * 缓存下来的HTTP body
     */
    private byte[] body;

    public MyHttpServletRequestWrapper(HttpServletRequest request) throws IOException {
        super(request);
        body = StreamUtils.copyToByteArray(request.getInputStream());
    }

    @Override
    public ServletInputStream getInputStream() throws IOException {
        InputStream bodyStream = new ByteArrayInputStream(body);
        return new ServletInputStream(){

            @Override
            public int read() throws IOException {
                return bodyStream.read();
            }

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

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

            @Override
            public void setReadListener(ReadListener readListener) {

            }
        };
    }

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

之后，需要创建过滤器，将“MyHttpServletRequestWrapper” 替换“ServletRequest”，代码如下：

import lombok.extern.slf4j.Slf4j;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

@Slf4j
public class RepeatedlyReadFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        ServletRequest requestWrapper = null;
        if(servletRequest instanceof HttpServletRequest) {
            requestWrapper = new MyHttpServletRequestWrapper((HttpServletRequest) servletRequest);
        }
        if(requestWrapper == null) {
            filterChain.doFilter(servletRequest, servletResponse);
        } else {
            filterChain.doFilter(requestWrapper, servletResponse);
        }

    }

    @Override
    public void destroy() {

    }
}

之后创建自定义配置，CorsConfig.java，将过滤器、拦截器加入配置：

import com.xyf.interceptor.MyInterceptor;
import com.xyf.interceptor.RepeatedlyReadFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

@Configuration
public class CorsConfig extends WebMvcConfigurationSupport {

    private MyInterceptor myInterceptor;

    @Autowired
    public CorsConfig (MyInterceptor myInterceptor){
        this.myInterceptor = myInterceptor;
    }

    // 注册过滤器
    @Bean
    public FilterRegistrationBean<RepeatedlyReadFilter> repeatedlyReadFilter() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        RepeatedlyReadFilter repeatedlyReadFilter = new RepeatedlyReadFilter();
        registration.setFilter(repeatedlyReadFilter);
        registration.addUrlPatterns("/*");
        return registration;
    }


    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        // addPathPatterns添加需要拦截的命名空间；
        // excludePathPatterns添加排除拦截命名空间

        registry.addInterceptor(myInterceptor).addPathPatterns("/**");
        //.excludePathPatterns("/api/sys/login")
    }

}

最后，完成验签，代码如下：

import cn.hutool.core.codec.Base64;
import cn.hutool.crypto.SecureUtil;
import cn.hutool.crypto.asymmetric.Sign;
import cn.hutool.crypto.asymmetric.SignAlgorithm;


byte[] data = "我是一段测试字符串2".getBytes();
        String publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC35wxzdTzseajkYL06hEKBCEJu\n" +
                "JQ/nySId2oTnsxbLiSTEjpAESSbML1lqkKaIwjrSFZzyLMH6DirsoEQcATqqoCDU\n" +
                "/H9QNVb5jMSAxxdQusQkTWz6k07bEuy1ppVjpGxNi8o2OGNd+lwPC/hOSDR7lpfm\n" +
                "aXLIjEwKSXzil7YAHQIDAQAB";

Sign sign = SecureUtil.sign(SignAlgorithm.SHA256withRSA,null,publicKey);

//客户端传来的签名
String qm = "IhY3LNuFn0isud1Pk6BL2eJV3Jl/UzDCYsdG9CYyJwOGqwnzStsv/RiYLnVP4bnQh1NRPMazY6ux/5Zz5Ypcx6RI5W1p5BDbO2afuIZX7x/eIu5utwsanhbxEfvm3XOsyuTbnMDh6BQUrXb4gUz9qgt9IXWjQdqnQRRv3ywzWcA=";
byte[] signed = Base64.decode(qm);

//验证签名
boolean verify = sign.verify(data, signed);