Tomcat是否可以在不重新启动的情况下重新加载其SSL证书?


11

我有一个后台进程,可以更新Tomcat用于其SSL凭证的密钥库。我希望能够让Tomcat自动重新加载,而无需手动重新启动。

是否可以让Tomcat在不重新启动的情况下重新加载它,或者是否可以通过编程的方式来完成它?

Answers:


6

我不相信有一种方法可以自动执行此操作,尽管您的后台进程可以自动重新启动tomcat。初始化jvm时,密钥库仅被读取一次。如果您要编写自己的处理程序来定期重新检查密钥库,那么可能会有一种解决方案,但是我个人在Internet上找不到任何此类示例。


8

您可以重新启动各个Tomcat连接器,即在更改jssecacert文件后可以像8443这样重新启动端口。

这是添加/删除证书后用于重新启动tomcat连接器的完整代码/方法。

// Stop and restart the SSL connection so that the tomcat server will
// re-read the certificates from the truststore file.
public void refreshTrustStore() throws Exception 
{
    try 
    {
        //following line should be replaced based on where you get your port number. You may pass in as argument to this method
        String httpsPort = configurationManager.getHttpsPort();
        String objectString = "*:type=Connector,port=" + httpsPort + ",*";

        final ObjectName objectNameQuery = new ObjectName(objectString); 

        for (final MBeanServer server: MBeanServerFactory.findMBeanServer(null))
        {
            if (!server.queryNames(objectNameQuery, null).isEmpty())
            {
                MBeanServer mbeanServer = server;
                ObjectName objectName = (ObjectName) server.queryNames(objectNameQuery, null).toArray()[0];

                mbeanServer.invoke(objectName, "stop", null, null);

                // Polling sleep to reduce delay to safe minimum.
                // Use currentTimeMillis() over nanoTime() to avoid issues
                // with migrating threads across sleep() calls.
                long start = System.currentTimeMillis();
                // Maximum of 6 seconds, 3x time required on an idle system.
                long max_duration = 6000L;
                long duration = 0L;
                do
                {
                    try
                    {
                        Thread.sleep(100);
                    }
                    catch (InterruptedException e)
                    {
                        Thread.currentThread().interrupt();
                    }

                    duration = (System.currentTimeMillis() - start);
                } while (duration < max_duration &&
                        server.queryNames(objectNameQuery, null).size() > 0);

                // Use below to get more accurate metrics.
                String message = "TrustStoreManager TrustStore Stop: took " + duration + "milliseconds";
                logger.information(message);

                mbeanServer.invoke(objectName, "start", null, null);

                break;
            }
        }
    } 
    catch (Exception exception) 
    {
        // Log and throw exception
            throw exception
    }
}

1
仅在连接器配置了bindOnInit="false"选件的情况下才有效。
anilech '16

4

从tomcat v8.5.24开始,现在有一种方法可以执行此操作。

他们介绍了两种名为:

  1. reloadSslHostConfig(String hostName)-重新加载特定的主机
  2. reloadSslHostConfigs()-重新加载全部

可以通过多种方式调用它们:

  1. 使用jmx
  2. 使用管理器服务(在tomcat v9.xx中)
  3. 通过制定自定义协议-我在研究期间发现了这种方式

方法1和方法2的详细信息可以在tomcat文档中轻松获得。

如何使用方式3的详细信息:

  1. 制作一个类,扩展您选择的协议,例如。Http11NioProtocol
  2. 覆盖所需的方法,仅在其中调用super即可保持默认行为
  3. 在此类中创建线程以不时调用reloadSslHostConfigs方法
  4. 将此类包装在一个jar中,然后将该jar放入tomcat的lib文件夹中
  5. 在server.xml的连接器中编辑协议以使用此自定义协议

在下面找到示例代码:

主协议类:

package com.myown.connector;

import java.io.File;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.net.URL;
import java.net.URLConnection;
import java.nio.file.StandardCopyOption;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ConcurrentMap;

import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.net.ssl.SSLSessionContext;

import org.apache.coyote.http11.Http11NioProtocol;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.modeler.Registry;
import org.apache.tomcat.util.net.AbstractEndpoint;
import org.apache.tomcat.util.net.AbstractJsseEndpoint;
import org.apache.tomcat.util.net.GetSslConfig;
import org.apache.tomcat.util.net.SSLContext;
import org.apache.tomcat.util.net.SSLHostConfig;
import org.apache.tomcat.util.net.SSLHostConfigCertificate;
import org.apache.tomcat.util.net.SSLImplementation;
import org.apache.tomcat.util.net.SSLUtil;

public class ReloadProtocol extends Http11NioProtocol {

    private static final Log log = LogFactory.getLog(Http12ProtocolSSL.class);

    public ReloadProtocol() {
        super();
        RefreshSslConfigThread refresher = new 
              RefreshSslConfigThread(this.getEndpoint(), this);
        refresher.start();
    }

    @Override
    public void setKeystorePass(String s) {
        super.setKeystorePass(s);
    }

    @Override
    public void setKeyPass(String s) {
        super.setKeyPass(s);
    }

    @Override
    public void setTruststorePass(String p) {
        super.setTruststorePass(p);
    }

    class RefreshSslConfigThread extends Thread {

        AbstractJsseEndpoint<?> abstractJsseEndpoint = null;
        Http11NioProtocol protocol = null;

        public RefreshSslConfigThread(AbstractJsseEndpoint<?> abstractJsseEndpoint, Http11NioProtocol protocol) {
            this.abstractJsseEndpoint = abstractJsseEndpoint;
            this.protocol = protocol;
        }

        public void run() {
            int timeBetweenRefreshesInt = 1000000; // time in milli-seconds
            while (true) {
                try {
                        abstractJsseEndpoint.reloadSslHostConfigs();
                        System.out.println("Config Updated");
                } catch (Exception e) {
                    System.out.println("Problem while reloading.");
                }
                try {
                    Thread.sleep(timeBetweenRefreshesInt);
                } catch (InterruptedException e) {
                    System.out.println("Error while sleeping");
                }
            }
        }
   }
}

server.xml中的连接器应将此作为协议提及:

<Connector protocol="com.myown.connector.ReloadProtocol"
 ..........

希望这可以帮助。

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