content: /*
   * Copyright (c) 2010-2019 Nathan Rajlich
   *
   *  Permission is hereby granted, free of charge, to any person
   *  obtaining a copy of this software and associated documentation
   *  files (the "Software"), to deal in the Software without
   *  restriction, including without limitation the rights to use,
   *  copy, modify, merge, publish, distribute, sublicense, and/or sell
   *  copies of the Software, and to permit persons to whom the
   *  Software is furnished to do so, subject to the following
   *  conditions:
   *
   *  The above copyright notice and this permission notice shall be
   *  included in all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
   *  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   *  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
   *  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   *  OTHER DEALINGS IN THE SOFTWARE.
   */
  
  package com.youku.ribut.core.socket.java_websocket.server;
  
  import com.youku.ribut.core.socket.java_websocket.SSLSocketChannel2;
  import com.youku.ribut.core.socket.java_websocket.WebSocketAdapter;
  import com.youku.ribut.core.socket.java_websocket.WebSocketImpl;
  import com.youku.ribut.core.socket.java_websocket.WebSocketServerFactory;
  import com.youku.ribut.core.socket.java_websocket.drafts.Draft;
  
  import java.io.IOException;
  import java.nio.channels.ByteChannel;
  import java.nio.channels.SelectionKey;
  import java.nio.channels.SocketChannel;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  import javax.net.ssl.SSLContext;
  import javax.net.ssl.SSLEngine;
  
  public class DefaultSSLWebSocketServerFactory implements WebSocketServerFactory {
  	protected SSLContext sslcontext;
  	protected ExecutorService exec;
  
  	public DefaultSSLWebSocketServerFactory( SSLContext sslContext ) {
  		this( sslContext, Executors.newSingleThreadScheduledExecutor() );
  	}
  
  	public DefaultSSLWebSocketServerFactory( SSLContext sslContext , ExecutorService exec ) {
  		if( sslContext == null || exec == null )
  			throw new IllegalArgumentException();
  		this.sslcontext = sslContext;
  		this.exec = exec;
  	}
  
  	@Override
  	public ByteChannel wrapChannel( SocketChannel channel, SelectionKey key ) throws IOException {
  		SSLEngine e = sslcontext.createSSLEngine();
  		/*
  		 * See https://github.com/TooTallNate/Java-WebSocket/issues/466
  		 *
  		 * We remove TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 from the enabled ciphers since it is just available when you patch your java installation directly.
  		 * E.g. firefox requests this cipher and this causes some dcs/instable connections
  		 */
  		List<String> ciphers = new ArrayList<String>( Arrays.asList(e.getEnabledCipherSuites()));
  		ciphers.remove("TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256");
  		e.setEnabledCipherSuites( ciphers.toArray( new String[ciphers.size()] ) );
  		e.setUseClientMode( false );
  		return new SSLSocketChannel2( channel, e, exec, key );
  	}
  
  	@Override
  	public WebSocketImpl createWebSocket( WebSocketAdapter a, Draft d) {
  		return new WebSocketImpl( a, d );
  	}
  
  	@Override
  	public WebSocketImpl createWebSocket( WebSocketAdapter a, List<Draft> d) {
  		return new WebSocketImpl( a, d );
  	}
  	@Override
  	public void close() {
  		exec.shutdown();
  	}
  }