SocksProxySocketFactory.java

/*
 * 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.nifi.processors.standard.util;

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.net.SocketFactory;

public final class SocksProxySocketFactory extends SocketFactory {

    private final Proxy proxy;

    public SocksProxySocketFactory(Proxy proxy) {
        this.proxy = proxy;
    }

    @Override
    public Socket createSocket() throws IOException {
        return new Socket(proxy);
    }

    @Override
    public Socket createSocket(InetAddress addr, int port) throws IOException {
        Socket socket = createSocket();
        socket.connect(new InetSocketAddress(addr, port));
        return socket;
    }

    @Override
    public Socket createSocket(InetAddress addr, int port, InetAddress localHostAddr, int localPort) throws IOException {
        Socket socket = createSocket();
        socket.bind(new InetSocketAddress(localHostAddr, localPort));
        socket.connect(new InetSocketAddress(addr, port));
        return socket;
    }

    @Override
    public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
        Socket socket = createSocket();
        socket.connect(new InetSocketAddress(host, port));
        return socket;
    }

    @Override
    public Socket createSocket(String host, int port, InetAddress localHostAddr, int localPort) throws IOException, UnknownHostException {
        Socket socket = createSocket();
        socket.bind(new InetSocketAddress(localHostAddr, localPort));
        socket.connect(new InetSocketAddress(host, port));
        return socket;
    }
}