首页 > 编程语言 > Vue+Springboot实现接口签名的示例代码
2021
05-23

Vue+Springboot实现接口签名的示例代码

1、实现思路

接口签名目的是为了,确保请求参数不会被篡改,请求的数据是否已超时,数据是否重复提交等。

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);

3、公钥、私钥生成

可通过一些网站在线生成公钥、私钥
网址:https://www.bejson.com/enc/rsa/

bejson在线生成公钥、私钥

4、其他问题

由于客户端加签、服务端验签。所以加签、验签的方式务必一致,否则将无法验证签名。Vue、Java有不同的签名工具库,使用前要做好测试。

到此这篇关于Vue+Springboot实现接口签名的示例代码的文章就介绍到这了,更多相关Springboot 接口签名内容请搜索自学编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持自学编程网! 

编程技巧