content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.cassandra.distributed.impl;
  
  import java.io.IOException;
  import java.io.Serializable;
  import java.net.InetAddress;
  import java.net.Socket;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Objects;
  import java.util.regex.Pattern;
  import javax.net.SocketFactory;
  import javax.net.ssl.SSLSocket;
  import javax.net.ssl.SSLSocketFactory;
  
  import org.apache.cassandra.utils.RMICloseableClientSocketFactory;
  
  /**
   * {@code RMIClientSocketFactory} for testing SSL based JMX clients.
   * This class is used to override the local address the JMX client calculates when trying to connect,
   * which can otherwise be influenced by the system property "java.rmi.server.hostname" in strange and
   * unpredictable ways.
   */
  public class RMISslClientSocketFactoryImpl implements Serializable, RMICloseableClientSocketFactory
  {
      private static final long serialVersionUID = 9054380061905145241L;
      private static final Pattern COMMA_SPLITTER = Pattern.compile(",");
      private static final List<Socket> sockets = new ArrayList<>();
      private final InetAddress localAddress;
      private final String[] enabledCipherSuites;
      private final String[] enabledProtocols;
  
      public RMISslClientSocketFactoryImpl(InetAddress localAddress, String enabledCipherSuites, String enabledProtocls)
      {
          this.localAddress = localAddress;
          this.enabledCipherSuites = splitCommaSeparatedString(enabledCipherSuites);
          this.enabledProtocols = splitCommaSeparatedString(enabledProtocls);
      }
  
      @Override
      public Socket createSocket(String host, int port) throws IOException
      {
          Socket socket = createSslSocket(port);
          sockets.add(socket);
          return socket;
      }
  
      private Socket createSslSocket(int port) throws IOException
      {
          final SocketFactory sslSocketFactory = SSLSocketFactory.getDefault();
          final SSLSocket sslSocket = (SSLSocket) sslSocketFactory.createSocket(localAddress, port);
          if (enabledCipherSuites != null)
          {
              try
              {
                  sslSocket.setEnabledCipherSuites(enabledCipherSuites);
              }
              catch (IllegalArgumentException e)
              {
                  throw new IOException(e.getMessage(), e);
              }
          }
          if (enabledProtocols != null)
          {
              try
              {
                  sslSocket.setEnabledProtocols(enabledProtocols);
              }
              catch (IllegalArgumentException e)
              {
                  throw new IOException(e.getMessage(), e);
              }
          }
          return sslSocket;
      }
  
      @Override
      public void close() throws IOException
      {
          for (Socket socket : sockets)
          {
              try
              {
                  socket.close();
              }
              catch (IOException ignored)
              {
                  // intentionally ignored
              }
          }
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          RMISslClientSocketFactoryImpl that = (RMISslClientSocketFactoryImpl) o;
          return Objects.equals(localAddress, that.localAddress);
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(localAddress);
      }
  
      private String[] splitCommaSeparatedString(String stringToSplit)
      {
          if (stringToSplit == null)
              return null;
          return COMMA_SPLITTER.split(stringToSplit);
      }
  }
  