1 Star 0 Fork 1.5K

沐瑶 / LearningNotes

forked from 陌溪 / LearningNotes 
Create your Gitee Account
Explore and code with more than 6 million developers,Free private repositories !:)
Sign up
Clone or download
README.md 37.16 KB
Copy Edit Web IDE Raw Blame History
陌溪 authored 2020-09-21 11:20 . docs: OAuth2.0学习

SpringSecurity在分布式环境下的使用

参考

来源于黑马程序员: 手把手教你精通新版SpringSecurity

分布式认证概念说明

分布式认证,即我们常说的单点登录,简称SSO,指的是在多应用系统的项目中,用户只需要登录一次,就可以访 问所有互相信任的应用系统。

分布式认证流程图

首先,我们要明确,在分布式项目中,每台服务器都有各自独立的session,而这些session之间是无法直接共享资 源的,所以,session通常不能被作为单点登录的技术方案。最合理的单点登录方案流程如下图所示:

image-20200920202612159

总结一下,单点登录的实现分两大环节:

  • **用户认证:**这一环节主要是用户向认证服务器发起认证请求,认证服务器给用户返回一个成功的令牌token, 主要在认证服务器中完成,即图中的A系统,注意A系统只能有一个。
  • **身份校验:**这一环节是用户携带token去访问其他服务器时,在其他服务器中要对token的真伪进行检验,主 要在资源服务器中完成,即图中的B系统,这里B系统可以有很多个。

JWT介绍

概念说明

从分布式认证流程中,我们不难发现,这中间起最关键作用的就是token,token的安全与否,直接关系到系统的 健壮性,这里我们选择使用JWT来实现token的生成和校验。 JWT,全称JSON Web Token,官网地址https://jwt.io,是一款出色的分布式身份校验方案。可以生成token,也可以解析检验token。

JWT生成的token由三部分组成

  • 头部:主要设置一些规范信息,签名部分的编码格式就在头部中声明。
  • 载荷:token中存放有效信息的部分,比如用户名,用户角色,过期时间等,但是不要放密码,会泄露!
  • 签名:将头部与载荷分别采用base64编码后,用“.”相连,再加入,最后使用头部声明的编码类型进行编 码,就得到了签名。【通过随机盐在进行加密】

JWT生成token的安全性分析

从JWT生成的token组成上来看,要想避免token被伪造,主要就得看签名部分了,而签名部分又有三部分组成,其中头部和载荷的base64编码,几乎是透明的,毫无安全性可言,那么最终守护token安全的重担就落在了加入的盐上面了!

试想:如果生成token所用的盐与解析token时加入的盐是一样的。岂不是类似于中国人民银行把人民币防伪技术 公开了?大家可以用这个盐来解析token,就能用来伪造token。这时,我们就需要对盐采用非对称加密的方式进行加密,以达到生成token与校验token方所用的盐不一致的安全效果!

非对称加密RSA介绍

  • **基本原理:**同时生成两把密钥:私钥和公钥,私钥隐秘保存,公钥可以下发给信任客户端
  • 私钥加密,持有私钥或公钥才可以解密
  • 公钥加密,持有私钥才可解密
  • 优点:安全,难以破解
  • 缺点:算法比较耗时,为了安全,可以接受
  • 历史:三位数学家Rivest、Shamir 和 Adleman 设计了一种算法,可以实现非对称加密。这种算法用他们三 个人的名字缩写:RSA。

【总结】:也就是说,我们加密信息的时候,使用的是公钥,而验证token真伪的时候,使用的是公钥

JWT相关工具类

jar包

<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-api</artifactId>
    <version>0.10.7</version>
</dependency>

<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-impl</artifactId>
    <version>0.10.7</version>
    <scope>runtime</scope>
</dependency>

<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-jackson</artifactId>
    <version>0.10.7</version>
    <scope>runtime</scope>
</dependency>

载荷对象

/**
* 为了方便后期获取token中的用户信息,将token中载荷部分单独封装成一个对象
*/
@Data
public class Payload<T> {

}

JWT工具类

/**
 * 生成token以及校验token相关方法
 */
public class JwtUtils {

    private static final String JWT_PAYLOAD_USER_KEY = "user";

    /**
     * 私钥加密token
     *
     * @param userInfo   载荷中的数据
     * @param privateKey 私钥
     * @param expire     过期时间,单位分钟
     * @return JWT
     */
    public static String generateTokenExpireInMinutes(Object userInfo, PrivateKey privateKey, int expire) {
        return Jwts.builder()
                .claim(JWT_PAYLOAD_USER_KEY, JsonUtils.toString(userInfo))
                .setId(createJTI())
                .setExpiration(DateTime.now().plusMinutes(expire).toDate())
                .signWith(privateKey, SignatureAlgorithm.RS256)
                .compact();
    }

    /**
     * 私钥加密token
     *
     * @param userInfo   载荷中的数据
     * @param privateKey 私钥
     * @param expire     过期时间,单位秒
     * @return JWT
     */
    public static String generateTokenExpireInSeconds(Object userInfo, PrivateKey privateKey, int expire) {
        return Jwts.builder()
                .claim(JWT_PAYLOAD_USER_KEY, JsonUtils.toString(userInfo))
                .setId(createJTI())
                .setExpiration(DateTime.now().plusSeconds(expire).toDate())
                .signWith(privateKey, SignatureAlgorithm.RS256)
                .compact();
    }

    /**
     * 公钥解析token
     *
     * @param token     用户请求中的token
     * @param publicKey 公钥
     * @return Jws<Claims>
     */
    private static Jws<Claims> parserToken(String token, PublicKey publicKey) {
        return Jwts.parser().setSigningKey(publicKey).parseClaimsJws(token);
    }

    private static String createJTI() {
        return new String(Base64.getEncoder().encode(UUID.randomUUID().toString().getBytes()));
    }

    /**
     * 获取token中的用户信息
     *
     * @param token     用户请求中的令牌
     * @param publicKey 公钥
     * @return 用户信息
     */
    public static <T> Payload<T> getInfoFromToken(String token, PublicKey publicKey, Class<T> userType) {
        Jws<Claims> claimsJws = parserToken(token, publicKey);
        Claims body = claimsJws.getBody();
        Payload<T> claims = new Payload<>();
        claims.setId(body.getId());
        claims.setUserInfo(JsonUtils.toBean(body.get(JWT_PAYLOAD_USER_KEY).toString(), userType));
        claims.setExpiration(body.getExpiration());
        return claims;
    }

    /**
     * 获取token中的载荷信息
     *
     * @param token     用户请求中的令牌
     * @param publicKey 公钥
     * @return 用户信息
     */
    public static <T> Payload<T> getInfoFromToken(String token, PublicKey publicKey) {
        Jws<Claims> claimsJws = parserToken(token, publicKey);
        Claims body = claimsJws.getBody();
        Payload<T> claims = new Payload<>();
        claims.setId(body.getId());
        claims.setExpiration(body.getExpiration());
        return claims;
    }
}

RSA工具类

非对称加密工具列

public class RsaUtils {

    private static final int DEFAULT_KEY_SIZE = 2048;
    /**
     * 从文件中读取公钥
     *
     * @param filename 公钥保存路径,相对于classpath
     * @return 公钥对象
     * @throws Exception
     */
    public static PublicKey getPublicKey(String filename) throws Exception {
        byte[] bytes = readFile(filename);
        return getPublicKey(bytes);
    }

    /**
     * 从文件中读取密钥
     *
     * @param filename 私钥保存路径,相对于classpath
     * @return 私钥对象
     * @throws Exception
     */
    public static PrivateKey getPrivateKey(String filename) throws Exception {
        byte[] bytes = readFile(filename);
        return getPrivateKey(bytes);
    }

    /**
     * 获取公钥
     *
     * @param bytes 公钥的字节形式
     * @return
     * @throws Exception
     */
    private static PublicKey getPublicKey(byte[] bytes) throws Exception {
        bytes = Base64.getDecoder().decode(bytes);
        X509EncodedKeySpec spec = new X509EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance("RSA");
        return factory.generatePublic(spec);
    }

    /**
     * 获取密钥
     *
     * @param bytes 私钥的字节形式
     * @return
     * @throws Exception
     */
    private static PrivateKey getPrivateKey(byte[] bytes) throws NoSuchAlgorithmException, InvalidKeySpecException {
        bytes = Base64.getDecoder().decode(bytes);
        PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance("RSA");
        return factory.generatePrivate(spec);
    }

    /**
     * 根据密文,生存rsa公钥和私钥,并写入指定文件
     *
     * @param publicKeyFilename  公钥文件路径
     * @param privateKeyFilename 私钥文件路径
     * @param secret             生成密钥的密文
     */
    public static void generateKey(String publicKeyFilename, String privateKeyFilename, String secret, int keySize) throws Exception {
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        SecureRandom secureRandom = new SecureRandom(secret.getBytes());
        keyPairGenerator.initialize(Math.max(keySize, DEFAULT_KEY_SIZE), secureRandom);
        KeyPair keyPair = keyPairGenerator.genKeyPair();
        // 获取公钥并写出
        byte[] publicKeyBytes = keyPair.getPublic().getEncoded();
        publicKeyBytes = Base64.getEncoder().encode(publicKeyBytes);
        writeFile(publicKeyFilename, publicKeyBytes);
        // 获取私钥并写出
        byte[] privateKeyBytes = keyPair.getPrivate().getEncoded();
        privateKeyBytes = Base64.getEncoder().encode(privateKeyBytes);
        writeFile(privateKeyFilename, privateKeyBytes);
    }

    private static byte[] readFile(String fileName) throws Exception {
        return Files.readAllBytes(new File(fileName).toPath());
    }

    private static void writeFile(String destPath, byte[] bytes) throws IOException {
        File dest = new File(destPath);
        if (!dest.exists()) {
            dest.createNewFile();
        }
        Files.write(dest.toPath(), bytes);
    }
}

SpringSecurity+JWT+RSA分布式认证思路分析

SpringSecurity主要是通过过滤器来实现功能的!我们要找到SpringSecurity实现认证和校验身份的过滤器! 回顾集中式认证流程

用户认证

使用UsernamePasswordAuthenticationFilter过滤器中attemptAuthentication方法实现认证功能,该过滤 器父类中successfulAuthentication方法实现认证成功后的操作。

身份校验

使用BasicAuthenticationFilter过滤器中doFilterInternal方法验证是否登录,以决定能否进入后续过滤器。 分析分布式认证流程

用户认证

由于,分布式项目,多数是前后端分离的架构设计,我们要满足可以接受异步post的认证请求参数,需要修 改UsernamePasswordAuthenticationFilter过滤器中attemptAuthentication方法,让其能够接收请求体。

另外,默认successfulAuthentication方法在认证通过后,是把用户信息直接放入session就完事了,现在我 们需要修改这个方法,在认证通过后生成token并返回给用户。

身份校验

原来BasicAuthenticationFilter过滤器中doFilterInternal方法校验用户是否登录,就是看session中是否有用 户信息,我们要修改为,验证用户携带的token是否合法,并解析出用户信息,交给SpringSecurity,以便于 后续的授权功能可以正常使用。

SpringSecurity+JWT+RSA分布式认证实现

创建父工程并导入jar包

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.itheima</groupId>
    <artifactId>springboot_security_jwt_rsa_parent</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>heima_common</module>
        <module>heima_auth_server</module>
        <module>heima_source_product</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath/>
    </parent>
</project>

通用模块

创建通用子模块并导入JWT相关jar包

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot_security_jwt_rsa_parent</artifactId>
        <groupId>com.itheima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>heima_common</artifactId>

    <dependencies>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt-api</artifactId>
            <version>0.10.7</version>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt-impl</artifactId>
            <version>0.10.7</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt-jackson</artifactId>
            <version>0.10.7</version>
            <scope>runtime</scope>
        </dependency>
        <!--jackson包-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.9</version>
        </dependency>
        <!--日志包-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
    </dependencies>
</project>

导入工具类

工具类如下

image-20200920210659250

Payload.java

/**
 * 为了方便后期获取token中的用户信息,将token中载荷部分单独封装成一个对象
 */
@Data
public class Payload<T> {
    private String id;
    private T userInfo;
    private Date expiration;
}

JsonUtil.java

public class JsonUtils {

    public static final ObjectMapper mapper = new ObjectMapper();

    private static final Logger logger = LoggerFactory.getLogger(JsonUtils.class);

    public static String toString(Object obj) {
        if (obj == null) {
            return null;
        }
        if (obj.getClass() == String.class) {
            return (String) obj;
        }
        try {
            return mapper.writeValueAsString(obj);
        } catch (JsonProcessingException e) {
            logger.error("json序列化出错:" + obj, e);
            return null;
        }
    }

    public static <T> T toBean(String json, Class<T> tClass) {
        try {
            return mapper.readValue(json, tClass);
        } catch (IOException e) {
            logger.error("json解析出错:" + json, e);
            return null;
        }
    }

    public static <E> List<E> toList(String json, Class<E> eClass) {
        try {
            return mapper.readValue(json, mapper.getTypeFactory().constructCollectionType(List.class, eClass));
        } catch (IOException e) {
            logger.error("json解析出错:" + json, e);
            return null;
        }
    }

    public static <K, V> Map<K, V> toMap(String json, Class<K> kClass, Class<V> vClass) {
        try {
            return mapper.readValue(json, mapper.getTypeFactory().constructMapType(Map.class, kClass, vClass));
        } catch (IOException e) {
            logger.error("json解析出错:" + json, e);
            return null;
        }
    }

    public static <T> T nativeRead(String json, TypeReference<T> type) {
        try {
            return mapper.readValue(json, type);
        } catch (IOException e) {
            logger.error("json解析出错:" + json, e);
            return null;
        }
    }
}

jwtUitls.java

public class JwtUtils {

    private static final String JWT_PAYLOAD_USER_KEY = "user";

    /**
     * 私钥加密token
     *
     * @param userInfo   载荷中的数据
     * @param privateKey 私钥
     * @param expire     过期时间,单位分钟
     * @return JWT
     */
    public static String generateTokenExpireInMinutes(Object userInfo, PrivateKey privateKey, int expire) {
        return Jwts.builder()
                .claim(JWT_PAYLOAD_USER_KEY, JsonUtils.toString(userInfo))
                .setId(createJTI())
                .setExpiration(DateTime.now().plusMinutes(expire).toDate())
                .signWith(privateKey, SignatureAlgorithm.RS256)
                .compact();
    }

    /**
     * 私钥加密token
     *
     * @param userInfo   载荷中的数据
     * @param privateKey 私钥
     * @param expire     过期时间,单位秒
     * @return JWT
     */
    public static String generateTokenExpireInSeconds(Object userInfo, PrivateKey privateKey, int expire) {
        return Jwts.builder()
                .claim(JWT_PAYLOAD_USER_KEY, JsonUtils.toString(userInfo))
                .setId(createJTI())
                .setExpiration(DateTime.now().plusSeconds(expire).toDate())
                .signWith(privateKey, SignatureAlgorithm.RS256)
                .compact();
    }

    /**
     * 公钥解析token
     *
     * @param token     用户请求中的token
     * @param publicKey 公钥
     * @return Jws<Claims>
     */
    private static Jws<Claims> parserToken(String token, PublicKey publicKey) {
        return Jwts.parser().setSigningKey(publicKey).parseClaimsJws(token);
    }

    private static String createJTI() {
        return new String(Base64.getEncoder().encode(UUID.randomUUID().toString().getBytes()));
    }

    /**
     * 获取token中的用户信息
     *
     * @param token     用户请求中的令牌
     * @param publicKey 公钥
     * @return 用户信息
     */
    public static <T> Payload<T> getInfoFromToken(String token, PublicKey publicKey, Class<T> userType) {
        Jws<Claims> claimsJws = parserToken(token, publicKey);
        Claims body = claimsJws.getBody();
        Payload<T> claims = new Payload<>();
        claims.setId(body.getId());
        claims.setUserInfo(JsonUtils.toBean(body.get(JWT_PAYLOAD_USER_KEY).toString(), userType));
        claims.setExpiration(body.getExpiration());
        return claims;
    }

    /**
     * 获取token中的载荷信息
     *
     * @param token     用户请求中的令牌
     * @param publicKey 公钥
     * @return 用户信息
     */
    public static <T> Payload<T> getInfoFromToken(String token, PublicKey publicKey) {
        Jws<Claims> claimsJws = parserToken(token, publicKey);
        Claims body = claimsJws.getBody();
        Payload<T> claims = new Payload<>();
        claims.setId(body.getId());
        claims.setExpiration(body.getExpiration());
        return claims;
    }
}

RsaUtils.java

public class RsaUtils {

    private static final int DEFAULT_KEY_SIZE = 2048;
    /**
     * 从文件中读取公钥
     *
     * @param filename 公钥保存路径,相对于classpath
     * @return 公钥对象
     * @throws Exception
     */
    public static PublicKey getPublicKey(String filename) throws Exception {
        byte[] bytes = readFile(filename);
        return getPublicKey(bytes);
    }

    /**
     * 从文件中读取密钥
     *
     * @param filename 私钥保存路径,相对于classpath
     * @return 私钥对象
     * @throws Exception
     */
    public static PrivateKey getPrivateKey(String filename) throws Exception {
        byte[] bytes = readFile(filename);
        return getPrivateKey(bytes);
    }

    /**
     * 获取公钥
     *
     * @param bytes 公钥的字节形式
     * @return
     * @throws Exception
     */
    private static PublicKey getPublicKey(byte[] bytes) throws Exception {
        bytes = Base64.getDecoder().decode(bytes);
        X509EncodedKeySpec spec = new X509EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance("RSA");
        return factory.generatePublic(spec);
    }

    /**
     * 获取密钥
     *
     * @param bytes 私钥的字节形式
     * @return
     * @throws Exception
     */
    private static PrivateKey getPrivateKey(byte[] bytes) throws NoSuchAlgorithmException, InvalidKeySpecException {
        bytes = Base64.getDecoder().decode(bytes);
        PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance("RSA");
        return factory.generatePrivate(spec);
    }

    /**
     * 根据密文,生存rsa公钥和私钥,并写入指定文件
     *
     * @param publicKeyFilename  公钥文件路径
     * @param privateKeyFilename 私钥文件路径
     * @param secret             生成密钥的密文
     */
    public static void generateKey(String publicKeyFilename, String privateKeyFilename, String secret, int keySize) throws Exception {
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        SecureRandom secureRandom = new SecureRandom(secret.getBytes());
        keyPairGenerator.initialize(Math.max(keySize, DEFAULT_KEY_SIZE), secureRandom);
        KeyPair keyPair = keyPairGenerator.genKeyPair();
        // 获取公钥并写出
        byte[] publicKeyBytes = keyPair.getPublic().getEncoded();
        publicKeyBytes = Base64.getEncoder().encode(publicKeyBytes);
        writeFile(publicKeyFilename, publicKeyBytes);
        // 获取私钥并写出
        byte[] privateKeyBytes = keyPair.getPrivate().getEncoded();
        privateKeyBytes = Base64.getEncoder().encode(privateKeyBytes);
        writeFile(privateKeyFilename, privateKeyBytes);
    }

    private static byte[] readFile(String fileName) throws Exception {
        return Files.readAllBytes(new File(fileName).toPath());
    }

    private static void writeFile(String destPath, byte[] bytes) throws IOException {
        File dest = new File(destPath);
        if (!dest.exists()) {
            dest.createNewFile();
        }
        Files.write(dest.toPath(), bytes);
    }
}

在通用子模块中编写测试类生成rsa公钥和私钥

public class RsaUtilsTest {
    private String publicFile = "D:\\auth_key\\rsa_key.pub";
    private String privateFile = "D:\\auth_key\\rsa_key";
    @Test
    public void generateKey() throws Exception {
    	RsaUtils.generateKey(publicFile, privateFile, "heima", 2048);
    }
}

执行后查看D:\auth_key目录发现私钥和公钥文件生成成功

image-20200920211051749

认证服务

创建认证服务工程并导入jar包

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot_security_jwt_rsa_parent</artifactId>
        <groupId>com.itheima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>heima_auth_server</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>com.itheima</groupId>
            <artifactId>heima_common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
    </dependencies>
</project>

创建认证服务配置文件

server:
  port: 9001
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql:///security_authority
    username: root
    password: root
mybatis:
  type-aliases-package: com.itheima.domain
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    com.itheima: debug
rsa:
  key:
    pubKeyFile: D:\auth_key\id_key_rsa.pub
    priKeyFile: D:\auth_key\id_key_rsa

提供解析公钥和私钥的配置类

@Data
@ConfigurationProperties(prefix = "heima.key")
public class RsaKeyProperties {
    private String pubKeyPath;
    private String priKeyPath;
    private PublicKey publicKey;
    private PrivateKey privateKey;
    @PostConstruct
    public void loadKey() throws Exception {
        publicKey = RsaUtils.getPublicKey(pubKeyPath);
        privateKey = RsaUtils.getPrivateKey(priKeyPath);
    }
}

创建认证服务启动类

@SpringBootApplication
@MapperScan("com.itheima.mapper")
@EnableConfigurationProperties(RsaKeyProperties.class)
public class AuthApplication {
    public static void main(String[] args) {
    	SpringApplication.run(AuthApplication.class, args);
    }
}

将上面集中式案例中数据库认证相关代码复制到认证服务中

需要复制的代码如果所示:

image-20200920211547261

注意这里要去掉mapper中继承的通用mapper接口,处理器类上换成@RestController,这里前后端绝对分离,不能再跳转页面了,要返回数据。

public class JwtLoginFilter extends UsernamePasswordAuthenticationFilter {

    private AuthenticationManager authenticationManager;
    private RsaKeyProperties prop;

    public JwtLoginFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        this.authenticationManager = authenticationManager;
        this.prop = prop;
    }

    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
        try {
            SysUser sysUser = new ObjectMapper().readValue(request.getInputStream(), SysUser.class);
            UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(sysUser.getUsername(), sysUser.getPassword());
            return authenticationManager.authenticate(authRequest);
        }catch (Exception e){
            try {
                response.setContentType("application/json;charset=utf-8");
                response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
                PrintWriter out = response.getWriter();
                Map resultMap = new HashMap();
                resultMap.put("code", HttpServletResponse.SC_UNAUTHORIZED);
                resultMap.put("msg", "用户名或密码错误!");
                out.write(new ObjectMapper().writeValueAsString(resultMap));
                out.flush();
                out.close();
            }catch (Exception outEx){
                outEx.printStackTrace();
            }
            throw new RuntimeException(e);
        }
    }

    public void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException {
        SysUser user = new SysUser();
        user.setUsername(authResult.getName());
        user.setRoles((List<SysRole>) authResult.getAuthorities());
        String token = JwtUtils.generateTokenExpireInMinutes(user, prop.getPrivateKey(), 24 * 60);
        response.addHeader("Authorization", "Bearer "+token);
        try {
            response.setContentType("application/json;charset=utf-8");
            response.setStatus(HttpServletResponse.SC_OK);
            PrintWriter out = response.getWriter();
            Map resultMap = new HashMap();
            resultMap.put("code", HttpServletResponse.SC_OK);
            resultMap.put("msg", "认证通过!");
            out.write(new ObjectMapper().writeValueAsString(resultMap));
            out.flush();
            out.close();
        }catch (Exception outEx){
            outEx.printStackTrace();
        }
    }
}

编写检验token过滤器

public class JwtVerifyFilter extends BasicAuthenticationFilter {

    private RsaKeyProperties prop;

    public JwtVerifyFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        super(authenticationManager);
        this.prop = prop;
    }

    public void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
        String header = request.getHeader("Authorization");
        if (header == null || !header.startsWith("Bearer ")) {
            //如果携带错误的token,则给用户提示请登录!
            chain.doFilter(request, response);
            response.setContentType("application/json;charset=utf-8");
            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            PrintWriter out = response.getWriter();
            Map resultMap = new HashMap();
            resultMap.put("code", HttpServletResponse.SC_FORBIDDEN);
            resultMap.put("msg", "请登录!");
            out.write(new ObjectMapper().writeValueAsString(resultMap));
            out.flush();
            out.close();
        } else {
            //如果携带了正确格式的token要先得到token
            String token = header.replace("Bearer ", "");
            //验证tken是否正确
            Payload<SysUser> payload = JwtUtils.getInfoFromToken(token, prop.getPublicKey(), SysUser.class);
            SysUser user = payload.getUserInfo();
            if(user!=null){
                UsernamePasswordAuthenticationToken authResult = new UsernamePasswordAuthenticationToken(user.getUsername(), null, user.getAuthorities());
                SecurityContextHolder.getContext().setAuthentication(authResult);
                chain.doFilter(request, response);
            }
        }
    }
}

编写SpringSecurity配置类

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled=true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserService userService;

    @Autowired
    private RsaKeyProperties prop;

    @Bean
    public BCryptPasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

    //指定认证对象的来源
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userService).passwordEncoder(passwordEncoder());
    }
    //SpringSecurity配置信息
    public void configure(HttpSecurity http) throws Exception {
        http.csrf()
            .disable()
            .authorizeRequests()
            .antMatchers("/product").hasAnyRole("USER")
            .anyRequest()
            .authenticated()
            .and()
            .addFilter(new JwtLoginFilter(super.authenticationManager(), prop))
            .addFilter(new JwtVerifyFilter(super.authenticationManager(), prop))
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }
}

启动测试认证服务

认证请求

image-20200920213350978

认证通过结果

image-20200920213403708

token在Headers中:

image-20200920213423316

验证认证请求

image-20200920213442797

资源服务

说明

资源服务可以有很多个,这里只拿产品服务为例,记住,资源服务中只能通过公钥验证认证。不能签发token!

创建产品服务并导入jar包

根据实际业务导包即可,咱们就暂时和认证服务一样了。

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot_security_jwt_rsa_parent</artifactId>
        <groupId>com.itheima</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>heima_source_product</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>com.itheima</groupId>
            <artifactId>heima_common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
    </dependencies>
</project>

编写产品服务配置文件

切记这里只能有公钥地址!

server:
  port: 9002
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql:///security_authority
    username: root
    password: root
mybatis:
  type-aliases-package: com.itheima.domain
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    com.itheima: debug
rsa:
  key:
    pubKeyFile: D:\auth_key\id_key_rsa.pub

编写读取公钥的配置类

@ConfigurationProperties("rsa.key")
public class RsaKeyProperties {

    private String pubKeyFile;

    private PublicKey publicKey;

    @PostConstruct
    public void createRsaKey() throws Exception {
        publicKey = RsaUtils.getPublicKey(pubKeyFile);
    }

    public String getPubKeyFile() {
        return pubKeyFile;
    }

    public void setPubKeyFile(String pubKeyFile) {
        this.pubKeyFile = pubKeyFile;
    }

    public PublicKey getPublicKey() {
        return publicKey;
    }

    public void setPublicKey(PublicKey publicKey) {
        this.publicKey = publicKey;
    }
}

编写启动类

@SpringBootApplication
@MapperScan("com.itheima.mapper")
@EnableConfigurationProperties(RsaKeyProperties.class)
public class AuthSourceApplication {
    public static void main(String[] args) {
        SpringApplication.run(AuthSourceApplication.class, args);
    }
}

复制认证服务中,用户对象,角色对象和校验认证的接口

这时目录结构如图:

image-20200920214004611

复制认证服务中SpringSecurity配置类做修改,去掉“增加自定义认证过滤器”即可!

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled=true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private RsaKeyProperties prop;

    //SpringSecurity配置信息
    public void configure(HttpSecurity http) throws Exception {
        http.csrf()
            .disable()
            .authorizeRequests()
            .antMatchers("/product").hasAnyRole("USER")
            .anyRequest()
            .authenticated()
            .and()
            .addFilter(new JwtVerifyFilter(super.authenticationManager(), prop))
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }
}

编写产品处理器

@RestController
@RequestMapping("/product")
public class ProductController {
    @GetMapping
    public String findAll(){
    	return "产品测试成功!";
    }
}

启动产品服务做测试

携带token

image-20200920214127083

在产品处理器上添加访问需要ADMIN角色

@RestController
@RequestMapping("/product")
public class ProductController {
    @Secured("ROLE_ADMIN")
    @GetMapping
    public String findAll(){
    	return "产品测试成功!";
    }
}

重启测试权限不足

image-20200920214208492

在数据库中手动给用户添加ADMIN角色

image-20200920214220620

重新认证获取新token再测试OK了!

image-20200920214234884

Comment ( 0 )

Sign in for post a comment

1
https://gitee.com/muyao_vip/LearningNotes.git
git@gitee.com:muyao_vip/LearningNotes.git
muyao_vip
LearningNotes
LearningNotes
master

Search

102255 3a0e046c 1850385 102255 7aaa926c 1850385