如何在spring-boot-admin中绕过SSL证书验证?

k4emjkb1  于 2023-05-28  发布在  Spring
关注(0)|答案(1)|浏览(280)

因此,我能够禁用SBA管理服务器验证它试图连接到的客户端的SSL证书-对于SBA版本2.6.2,它或多或少地从他们的文档中概述:https://codecentric.github.io/spring-boot-admin/current/#_using_mutual_tls
下面是完整的configuration overriding bean:

package com.markham.mkmappadmin.config;

import javax.net.ssl.SSLException;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.reactive.ClientHttpConnector;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;

import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
import reactor.netty.http.client.HttpClient;

/**
 * Custom http client class which overrides Spring Boot Admin's server default client.<br>
 * The custom client will bypass any SSL Validation by configuring an instance of
 *  {@link InsecureTrustManagerFactory}
 * @author Hanif Rajabali
 * @see <a href="https://codecentric.github.io/spring-boot-admin/current/#_using_mutual_tls">Spring Boot Admin 2.6.2 Using Mutual TLS</a>
 */
@Configuration
public class CustomHttpClientConfig {

    @Bean
    public ClientHttpConnector customHttpClient() throws SSLException {
        SslContext sslContext = SslContextBuilder
              .forClient()
              .trustManager(InsecureTrustManagerFactory.INSTANCE)
              .build();
        HttpClient httpClient = HttpClient.create().secure(
            ssl -> ssl.sslContext(sslContext)
        );
        return new ReactorClientHttpConnector(httpClient);
    }

}

我还没有弄清楚的是如何从SBA客户端禁用它。我在下面定义了一个自定义的RestTemplate Config,但是SBA客户端似乎没有拾取它,即使我看到SBA客户端代码正在使用BlockingRegistrationClient(即RestTemplate)

package com.markham.mkmemailerws.config;

import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;

/**
 * Need to explicitly build Spring Boot's auto configured
 * {@link #restTemplate(RestTemplateBuilder)}
 *
 * @author Hanif Rajabali
 *
 */
@Configuration
public class RestTemplateConfig {

//   @Bean
//   public RestTemplate restTemplate(RestTemplateBuilder restTemplateBuilder) {
//      return restTemplateBuilder.build();
//   }

    /**
     * The following will bypass ssl validation altogether. Not ideal.
     */
    @Bean
    public RestTemplate restTemplate(RestTemplateBuilder builder)
            throws NoSuchAlgorithmException, KeyManagementException {

        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[0];
            }

            public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
            }

            public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
            }
        } };
        SSLContext sslContext = SSLContext.getInstance("SSL");
        sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
        CloseableHttpClient httpClient = HttpClients.custom().setSSLContext(sslContext)
                .setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE).build();
        HttpComponentsClientHttpRequestFactory customRequestFactory = new HttpComponentsClientHttpRequestFactory();
        customRequestFactory.setHttpClient(httpClient);
        return builder.requestFactory(() -> customRequestFactory).build();
    }
}
gojuced7

gojuced71#

在我们的案例中(Sping Boot Admin 2.7.10),第一个问题是,如果您使用默认文档中给出的模板启动SBA,则配置类不会被拾取。添加一个@ComponentScan Annotation,配置将被使用。

@Configuration
@EnableAutoConfiguration
@EnableAdminServer
public class SpringBootAdminApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringBootAdminApplication.class, args);
    }
}

那么问题中的customHttpClientbean就能按预期工作。如果您不想使整个证书检查过程无效,而只想使“使用者备用名称”检查无效,因为您正在使用IP而不是SBA的主机名,则可以使用以下方法来执行此操作。

@Bean
    public ClientHttpConnector customHttpClient() throws SSLException {

        SslContext sslContext = SslContextBuilder.forClient()
                .build();

        var httpClient = reactor.netty.http.client.HttpClient.create().secure(
                ssl -> ssl.sslContext(sslContext)
                        .handlerConfigurator(sslHandler -> {
                            SSLEngine engine = sslHandler.engine();
                            SSLParameters params = new SSLParameters();
                            params.setEndpointIdentificationAlgorithm("");
                            engine.setSSLParameters(params);
                        }));
        return new ReactorClientHttpConnector(httpClient);
    }
}

在我们的例子中,在这里使用setEndpointIdentificationAlgorithm("");很重要,因为如果我们使用null,实际上在内部设置了另一个算法。

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