Spring Cloud Security&Eureka安全认证(Greenwich版本)

Spring Cloud Security&Eureka安全认证(Greenwich版本)


一·安全

Spring Cloud支持多种安全认证方式,比如OAuth等。而默认是可以直接添加spring-boot-starter-security来配置HTTP BASIC认证。如果没有配置用户和密码,那么默认的用户是user,并随机生成一个密码,在启动的控制台中显示出来。但是这种方式在实践中几乎无实际用途,所以最好还是需要显式设置(参数名为spring.security.user.password)

二· 密码加密

直接配置明文敏感信息是比较冒险的,所以一种可行的办法就是将明文加密成密文。密文是以{cipher}开头,系统会自动在使用之前将其解密。如果配置的属性(keyname)对应密文无法解密,那么系统将会将此属性移除,并增加一个属性invalid${keyname}: not applicable

数据的加密解密可以通过接口/encrypt /decrypt完成,比如:

$ curl localhost:8888/encrypt -d mysecret
682bc583f4641835fa2db009355293665d2647dade3375c0ee201de2a49f7bda $ curl localhost:8888/decrypt -d 682bc583f4641835fa2db009355293665d2647dade3375c0ee201de2a49f7bda

mysecret

如果安装了扩展Spring Cloud CLI extensions,那么可以直接Spring命令工具:

$ spring encrypt mysecret --key foo
682bc583f4641835fa2db009355293665d2647dade3375c0ee201de2a49f7bda
$ spring decrypt --key foo 682bc583f4641835fa2db009355293665d2647dade3375c0ee201de2a49f7bda
mysecret

也可以使用密钥文件加解密,文件路径参数前需要个特殊符号@,如下:

$ spring encrypt mysecret --key @${HOME}/.ssh/id_rsa.pub
AQAjPgt3eFZQXwt8tsHAVv/QHiY5sI2dRcR+...

注意:要使用加密解密的功能,必须要下载JCE(Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files)。这些默认是不包含在JDK中的。

三.Eureka Server配置HTTP BASIC

在配置文件中增加spring-boot-starter-security,如下:

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>

注意,在最新版本Greenwich中,口令不是配置security.user.namesecurity.user.password属性中,它已被废弃不推荐使用,而是配置在Spring中(spring.security.user.namespring.security.user.password)。以下的是Eureka多集群的(Greenwich)的配置文件:

USER: light
PASSWORD: 123456 spring:

security:

user:

name: ${USER}

password: ${PASSWORD} eureka:

client:

service-url:

defaultZone: http://${USER}:${PASSWORD}@peer1.com:9801/eureka/,http://${USER}:${PASSWORD}@peer2.com:9802/eureka/,http://${USER}:${PASSWORD}@peer3.com:9803/eureka/
spring:

profiles: peer1

application:

name: application-peer1 server:

port: 9801 eureka:

environment: dev

datacenter: hangzhou

instance:

hostname: peer1.com

appname: lighthouse
spring:

profiles: peer2

application:

name: application-peer2 server:

port: 9802 eureka:

environment: dev

datacenter: beijing

instance:

hostname: peer2.com

appname: lighthouse
spring:

profiles: peer3

application:

name: application-peer3 server:

port: 9803 eureka:

environment: dev

datacenter: guangzhou

instance:

hostname: peer3.com

appname: lighthouse

由于默认是开启CSRF,所以需要将其关闭,不然会出现如下错误:

javax.ws.rs.WebApplicationException: com.fasterxml.jackson.databind.exc.MismatchedInputException: Root name 'timestamp' does not match expected ('instance') for type [simple type, class com.netflix.appinfo.InstanceInfo]

创建一个WebSecurityConfig类,代码如下:

// WebSecurityConfig.java

@EnableWebSecurity

@Configuration

public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

@Override

protected void configure(HttpSecurity http) throws Exception {

http.csrf().disable(); //关闭csrf

super.configure(http); //开启认证

}

}

启动三个配置文件对应的三个实例,就可以看到已经启用HTTP BASIC认证:

Spring Cloud Security&Eureka安全认证(Greenwich版本)

Spring Cloud Security&Eureka安全认证(Greenwich版本)

关于Eureka Server集群的配置,请参考另外一篇文章

Spring Cloud Eureka集群配置及注意事项(Greenwich版本)

Eureka Client和Service Provider配置方法类似,只需要在defaultZone中配置好含有认证信息的url即可,如下所示。


USER: light
PASSWORD: 123456 eureka:

client:

service-url:

defaultZone: http://${USER}:${PASSWORD}@peer1.com:9801/eureka/,http://${USER}:${PASSWORD}@peer2.com:9802/eureka/,http://${USER}:${PASSWORD}@peer3.com:9803/eureka/

四·参考

原文地址:http://www.easysb.cn/2019/06/429.html

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