当服务器不支持TLS 1.0时，HCP JEE6目标应用程序失败

Question

我们正在使用Hana Cloud Platform Java应用程序外部的RESTful服务。我们能够在通过为应用JEE6配置文件和其他HCP库的一部分提供了Apache的HttpClient（v4.1.3）HCP这些目的地设置交互，应用程序配置为使用JRE 7

的整合基础设施供应商我们正在连接到，最近禁用了TLSv1.0，从那时起我们在尝试连接到REST服务时出现错误。

这是堆栈跟踪：

javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated 
at sun.security.ssl.SSLSessionImpl.getPeerCertificates(SSLSessionImpl.java:421) 
at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:128) 
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:397) 
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148) 
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:150) 
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121) 
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:575) 
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425) 
at com.sap.core.connectivity.httpdestination.client.RequestDirectorExtender.execute(RequestDirectorExtender.java:47) 
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820) 
at com.sap.core.connectivity.httpdestination.impl.AbstractHttpClientWrapper$2.execute(AbstractHttpClientWrapper.java:141) 
at com.sap.core.connectivity.httpdestination.impl.AbstractHttpClientWrapper$2.execute(AbstractHttpClientWrapper.java:1) 
at com.sap.core.connectivity.httpdestination.impl.AbstractHttpClientWrapper.executeOperation(AbstractHttpClientWrapper.java:300) 
at com.sap.core.connectivity.httpdestination.impl.AbstractHttpClientWrapper.execute(AbstractHttpClientWrapper.java:277) 
at com.sap.core.connectivity.httpdestination.impl.AbstractHttpClientWrapper.execute(AbstractHttpClientWrapper.java:132) 
at com.sap.core.connectivity.httpdestination.impl.AbstractHttpClientWrapper.execute(AbstractHttpClientWrapper.java:126) 
at my.domain.hcp.HttpRequestSupport.service(HttpRequestSupport.java:124) 
at my.domain.gap.proxy.ProxyServlet.service(ProxyServlet.java:36) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
at com.sap.core.communication.server.CertValidatorFilter.doFilter(CertValidatorFilter.java:156) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) 
at org.eclipse.virgo.web.enterprise.security.valve.OpenEjbSecurityInitializationValve.invoke(OpenEjbSecurityInitializationValve.java:44) 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614) 
at com.sap.core.jpaas.security.auth.service.lib.AbstractAuthenticator.invoke(AbstractAuthenticator.java:170) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) 
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) 
at com.sap.core.tenant.valve.TenantValidationValve.invokeNextValve(TenantValidationValve.java:168) 
at com.sap.core.tenant.valve.TenantValidationValve.invoke(TenantValidationValve.java:94) 
at com.sap.js.statistics.tomcat.valve.RequestTracingValve.invoke(RequestTracingValve.java:38) 
at com.sap.core.js.monitoring.tomcat.valve.RequestTracingValve.invoke(RequestTracingValve.java:27) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442) 
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1083) 
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:640) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
at java.lang.Thread.run(Thread.java:807) 

我们已经尝试添加了JVM参数Java应用程序中强制使用TLSv1.1或TLSv1.2工作，而不是使用TLSv1.0：

-Dhttps.protocols=TLSv1.1,TLSv1.2 

设置JVM参数什么都不做，看起来像Apache HttpClient库忽略了这个设置。是否有另一种方法强制Apache HttpClient（v4.1.3）更新版本的TLS？

Answer 1

事实证明，可以扩展org.apache.http.conn.ssl.SSLSocketFactory类并将其注册到HttpClient以强制客户端使用特定的协议。事实上，你可以使用相同的机制来改变cyphers，超时等

添加这个额外的代码创建一个HttpClient的从HttpDestination：

private static final String CA_CERTS_PATH = System.getProperties().getProperty("java.home") + File.separator + 
     "lib" + File.separator + "security" + File.separator + "cacerts"; 

private HttpClient createHttpClient(HttpDestination httpDestination) 
     throws DestinationException, KeyStoreException, IOException, CertificateException, NoSuchAlgorithmException, KeyManagementException { 

    HttpClient httpClient = httpDestination.createHttpClient(); 
    try (FileInputStream fis = new FileInputStream(CA_CERTS_PATH)) { 
     KeyStore keyStore = KeyStore.getInstance("JKS"); 
     keyStore.load(fis, "changeit".toCharArray()); 

     TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); 
     tmf.init(keyStore); 

     SSLContext ctx = SSLContext.getInstance("TLS"); 
     ctx.init(null, tmf.getTrustManagers(), new SecureRandom()); 

     // Instantiate the custom SSLSocketFactory 
     SSLSocketFactory sslSocketFactory = new CustomSSLSocketFactory(
       ctx, 
       SSLSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER, 
       new String[]{"TLSv1.1", "TLSv1.2"} 
     ); 

     // Register the https scheme with the custom SSLSocketFactory 
     Scheme httpsScheme = new Scheme("https", 443, sslSocketFactory); 
     httpClient.getConnectionManager().getSchemeRegistry().register(httpsScheme); 
    } 
    return httpClient; 
} 

和扩展类SSLSocketFactory：

import org.apache.http.conn.ssl.SSLSocketFactory; 
import org.apache.http.conn.ssl.X509HostnameVerifier; 
import org.apache.http.params.HttpParams; 

import javax.net.ssl.SSLContext; 
import javax.net.ssl.SSLSocket; 
import java.io.IOException; 
import java.net.InetAddress; 
import java.net.InetSocketAddress; 
import java.net.Socket; 

/** 
* Custom SSLSocketFactory to limit connections to specific TLS protocols. 
* 
* @author Juan Heyns 
*/ 
public class CustomSSLSocketFactory extends SSLSocketFactory { 

    private final String[] tlsProtocols; 

    public CustomSSLSocketFactory(SSLContext sslContext, X509HostnameVerifier hostnameVerifier, String[] tlsProtocols) { 
     super(sslContext, hostnameVerifier); 
     this.tlsProtocols = tlsProtocols; 
    } 

    @Override 
    public Socket connectSocket(Socket socket, InetSocketAddress remoteAddress, InetSocketAddress localAddress, HttpParams params) throws IOException { 
     return prepareSocket(super.connectSocket(socket, remoteAddress, localAddress, params)); 
    } 

    @Override 
    public Socket createLayeredSocket(Socket socket, String host, int port, boolean autoClose) throws IOException { 
     return prepareSocket(super.createLayeredSocket(socket, host, port, autoClose)); 
    } 

    @Override 
    public Socket createSocket(HttpParams params) throws IOException { 
     return prepareSocket(super.createSocket(params)); 
    } 

    @Override 
    @Deprecated 
    public Socket createSocket() throws IOException { 
     return prepareSocket(super.createSocket()); 
    } 

    @Override 
    @Deprecated 
    public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException { 
     return prepareSocket(super.createSocket(socket, host, port, autoClose)); 
    } 

    @Override 
    @Deprecated 
    public Socket connectSocket(Socket socket, String host, int port, InetAddress localAddress, int localPort, HttpParams params) throws IOException { 
     return prepareSocket(super.connectSocket(socket, host, port, localAddress, localPort, params)); 
    } 

    /** 
    * Any socket returned from this class will first be configured. 
    * 
    * @param socket 
    * @return 
    */ 
    private Socket prepareSocket(Socket socket) { 
     if (socket instanceof SSLSocket) { 
      SSLSocket sslSocket = (SSLSocket) socket; 
      sslSocket.setEnabledProtocols(tlsProtocols); 
     } 
     return socket; 
    } 

}