SpringBoot：使用SSL伪装客户端（第12页）

Question

我正在尝试为一个使用SSL的外部HTTP API创建一个假客户端。困难在于——如何用我的逻辑修改默认的Spring佯装客户端，在本例中是SSL连接工厂。所以基本上我想保留Spring自动为假客户机做的所有好事情，比如Hystrix、Sleuth跟踪等，并使其与我的SSL工厂一起工作。

如有任何建议，将不胜感激。

以下是我试图做的：

我尝试在ComponentScan之外提供自定义@配置：

@Configuration
public class CustomFeignConfiguration
{
    @Bean
    public Feign.Builder feignBuilder()
    {
        Client trustSSLSockets = new Client.Default(
                TrustingSSLSocketFactory.get("server1"),
                new NoopHostnameVerifier());

        log.info("feignBuilder called");
        return Feign.builder().client(trustSSLSockets);
    }
...
}

通过注解使FaignClient使用它

    @FeignClient(name = "sslClient", configuration = CustomFeignConfiguration.class, url = "https://...")

其中，“Trustingslssocketfactory”的实现与此类似。

现在，如果我将我的客户端注入Spring应用程序，我可以看到调用了“feignBuilder”并成功加载了我的密钥。问题是创建的客户端实际上并没有使用指定的SSLFactory进行createSocket调用。所以我得到：

Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) ~[na:1.8.0_72]
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) ~[na:1.8.0_72]
    at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2023) ~[na:1.8.0_72]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1125) ~[na:1.8.0_72]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[na:1.8.0_72]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[na:1.8.0_72]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[na:1.8.0_72]
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559) ~[na:1.8.0_72]
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[na:1.8.0_72]
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513) ~[na:1.8.0_72]
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441) ~[na:1.8.0_72]
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480) ~[na:1.8.0_72]
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338) ~[na:1.8.0_72]
    at feign.Client$Default.convertResponse(Client.java:152) ~[feign-core-9.3.1.jar:na]

Answer 1

我做了这样的事达到了我的目的-

@Bean
public Client feignClient()
{
    Client trustSSLSockets = new Client.Default(getSSLSocketFactory(), new NoopHostnameVerifier());
    log.info("feignClient called"); 
    return trustSSLSockets;
}


private SSLSocketFactory getSSLSocketFactory() {
    try {
    TrustStrategy acceptingTrustStrategy = new TrustStrategy() {
        @Override
        public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            //Do your validations
            return true;
        }
        };

        SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
        return sslContext.getSocketFactory();
    } catch (Exception exception) {
        throw new RuntimeException(exception);
    }
}

Answer 2

按照自己的Bean而不是生成器的一部分创建客户机<代码>生成器。稍后将调用客户端（client），覆盖创建生成器时设置的客户端。

所以

@Bean
public Client feignClient()
{
    Client trustSSLSockets = new Client.Default(
            TrustingSSLSocketFactory.get("server1"),
            new NoopHostnameVerifier());

    log.info("feignClient called");
    return trustSSLSockets;
}