// Path: src/main/java/sockslib/common/SocksException.java
// public class SocksException extends IOException {
// 
//   /**
//    * Serial version UID.
//    */
//   private static final long serialVersionUID = 1L;
// 
//   private static final String NO_ACCEPTABLE_METHODS = "NO ACCEPTABLE METHODS";
//   /**
//    * Messages that server will reply.
//    */
//   private static final String serverReplyMessage[] =
//       {"General SOCKS server failure", "Connection not allowed by ruleset",
//           "Network " + "unreachable", "Host unreachable", "Connection refused", "TTL expired",
//           "Command not " + "supported", "Address type not supported"};
//   /**
//    * Reply from SOCKS server.
//    */
//   private ServerReply serverReply;
// 
//   /**
//    * Constructs an instance of {@link SocksException} with a message.
//    *
//    * @param msg Message.
//    */
//   public SocksException(String msg) {
//     super(msg);
//   }
// 
//   /**
//    * Constructs an instance of {@link SocksException} with a code.
//    *
//    * @param replyCode The code that server Replied.
//    */
//   public SocksException(int replyCode) {
// 
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message "NO ACCEPTABLE METHODS".
//    *
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException noAcceptableMethods() {
//     return new SocksException(NO_ACCEPTABLE_METHODS);
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message "Protocol not supported".
//    *
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException protocolNotSupported() {
//     return new SocksException("Protocol not supported");
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message of reply.
//    *
//    * @param reply Server's reply.
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException serverReplyException(ServerReply reply) {
//     SocksException ex = serverReplyException(reply.getValue());
//     ex.setServerReply(reply);
//     return ex;
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message of reply.
//    *
//    * @param reply Code of server's reply.
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException serverReplyException(byte reply) {
//     int code = reply;
//     code = code & 0xff;
//     if (code < 0 || code > 0x08) {
//       return new SocksException("Unknown reply");
//     }
//     code = code - 1;
//     return new SocksException(serverReplyMessage[code]);
//   }
// 
//   /**
//    * Returns server's reply.
//    *
//    * @return Server's reply.
//    */
//   public ServerReply getServerReply() {
//     return serverReply;
//   }
// 
//   /**
//    * Sets server's reply.
//    *
//    * @param serverReply Reply of the server.
//    */
//   public void setServerReply(ServerReply serverReply) {
//     this.serverReply = serverReply;
//   }
// 
// }


import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import sockslib.common.SocksException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.nio.channels.SocketChannel;
import java.util.ArrayList;
import java.util.List;
/*
 * Copyright 2015-2025 the original author or authors.
 * 
 * Licensed 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 sockslib.client;




/**
 * The class <code>SocksSocket</code> is proxy class that help developers use {@link SocksProxy} as
 * same as a java.net.Socket.<br>
 * For example:<br>
 * <pre>
 * SocksProxy proxy = new Socks5(new InetSocketAddress(&quot;127.0.0.1&quot;, 1080));
 * // Setting proxy...
 * Socket socket = new SocksSocket(proxy, new InetSocketAddress(&quot;whois.internic.net&quot;,
 * 43));
 * InputStream inputStream = socket.getInputStream();
 * OutputStream outStream = socket.getOutputStream();
 * // Just use the socket as normal java.net.Socket now.
 * </pre>
 *
 * @author Youchao Feng
 * @version 1.0
 * @date Mar 18, 2015 5:02:31 PM
 */
public class SocksSocket extends Socket {

  protected static final Logger logger = LoggerFactory.getLogger(SocksSocket.class);

  private SocksProxy proxy;

  private String remoteServerHost;

  private int remoteServerPort;

  /**
   * Socket that will connect to SOCKS server.
   */
  private Socket proxySocket;

  /**
   * Create a socket and connect SOCKS Server.
   *
   * @param proxy            Socks proxy.
   * @param remoteServerHost Remote sever host.
   * @param remoteServerPort Remote server port.
   * @throws SocksException If any errors about SOCKS protocol occurred.
   * @throws IOException    If any IO errors occurred.
   */
  public SocksSocket(SocksProxy proxy, String remoteServerHost, int remoteServerPort) throws
// Path: src/main/java/sockslib/common/SocksException.java
// public class SocksException extends IOException {
// 
//   /**
//    * Serial version UID.
//    */
//   private static final long serialVersionUID = 1L;
// 
//   private static final String NO_ACCEPTABLE_METHODS = "NO ACCEPTABLE METHODS";
//   /**
//    * Messages that server will reply.
//    */
//   private static final String serverReplyMessage[] =
//       {"General SOCKS server failure", "Connection not allowed by ruleset",
//           "Network " + "unreachable", "Host unreachable", "Connection refused", "TTL expired",
//           "Command not " + "supported", "Address type not supported"};
//   /**
//    * Reply from SOCKS server.
//    */
//   private ServerReply serverReply;
// 
//   /**
//    * Constructs an instance of {@link SocksException} with a message.
//    *
//    * @param msg Message.
//    */
//   public SocksException(String msg) {
//     super(msg);
//   }
// 
//   /**
//    * Constructs an instance of {@link SocksException} with a code.
//    *
//    * @param replyCode The code that server Replied.
//    */
//   public SocksException(int replyCode) {
// 
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message "NO ACCEPTABLE METHODS".
//    *
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException noAcceptableMethods() {
//     return new SocksException(NO_ACCEPTABLE_METHODS);
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message "Protocol not supported".
//    *
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException protocolNotSupported() {
//     return new SocksException("Protocol not supported");
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message of reply.
//    *
//    * @param reply Server's reply.
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException serverReplyException(ServerReply reply) {
//     SocksException ex = serverReplyException(reply.getValue());
//     ex.setServerReply(reply);
//     return ex;
//   }
// 
//   /**
//    * Returns a {@link SocksException} instance with a message of reply.
//    *
//    * @param reply Code of server's reply.
//    * @return An instance of {@link SocksException}.
//    */
//   public static SocksException serverReplyException(byte reply) {
//     int code = reply;
//     code = code & 0xff;
//     if (code < 0 || code > 0x08) {
//       return new SocksException("Unknown reply");
//     }
//     code = code - 1;
//     return new SocksException(serverReplyMessage[code]);
//   }
// 
//   /**
//    * Returns server's reply.
//    *
//    * @return Server's reply.
//    */
//   public ServerReply getServerReply() {
//     return serverReply;
//   }
// 
//   /**
//    * Sets server's reply.
//    *
//    * @param serverReply Reply of the server.
//    */
//   public void setServerReply(ServerReply serverReply) {
//     this.serverReply = serverReply;
//   }
// 
// }


// Path: src/main/java/sockslib/client/SocksSocket.java
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import sockslib.common.SocksException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.nio.channels.SocketChannel;
import java.util.ArrayList;
import java.util.List;

/*
 * Copyright 2015-2025 the original author or authors.
 * 
 * Licensed 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 sockslib.client;




/**
 * The class <code>SocksSocket</code> is proxy class that help developers use {@link SocksProxy} as
 * same as a java.net.Socket.<br>
 * For example:<br>
 * <pre>
 * SocksProxy proxy = new Socks5(new InetSocketAddress(&quot;127.0.0.1&quot;, 1080));
 * // Setting proxy...
 * Socket socket = new SocksSocket(proxy, new InetSocketAddress(&quot;whois.internic.net&quot;,
 * 43));
 * InputStream inputStream = socket.getInputStream();
 * OutputStream outStream = socket.getOutputStream();
 * // Just use the socket as normal java.net.Socket now.
 * </pre>
 *
 * @author Youchao Feng
 * @version 1.0
 * @date Mar 18, 2015 5:02:31 PM
 */
public class SocksSocket extends Socket {

  protected static final Logger logger = LoggerFactory.getLogger(SocksSocket.class);

  private SocksProxy proxy;

  private String remoteServerHost;

  private int remoteServerPort;

  /**
   * Socket that will connect to SOCKS server.
   */
  private Socket proxySocket;

  /**
   * Create a socket and connect SOCKS Server.
   *
   * @param proxy            Socks proxy.
   * @param remoteServerHost Remote sever host.
   * @param remoteServerPort Remote server port.
   * @throws SocksException If any errors about SOCKS protocol occurred.
   * @throws IOException    If any IO errors occurred.
   */
  public SocksSocket(SocksProxy proxy, String remoteServerHost, int remoteServerPort) throws
      SocksException, IOException {