SocksSocketFactory.java
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上传日期:2018-01-08
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- /**
- * 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.hadoop.net;
- 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;
- import org.apache.hadoop.conf.Configurable;
- import org.apache.hadoop.conf.Configuration;
- /**
- * Specialized SocketFactory to create sockets with a SOCKS proxy
- */
- public class SocksSocketFactory extends SocketFactory implements
- Configurable {
- private Configuration conf;
- private Proxy proxy;
- /**
- * Default empty constructor (for use with the reflection API).
- */
- public SocksSocketFactory() {
- this.proxy = Proxy.NO_PROXY;
- }
- /**
- * Constructor with a supplied Proxy
- *
- * @param proxy the proxy to use to create sockets
- */
- public SocksSocketFactory(Proxy proxy) {
- this.proxy = proxy;
- }
- /* @inheritDoc */
- @Override
- public Socket createSocket() throws IOException {
- return new Socket(proxy);
- }
- /* @inheritDoc */
- @Override
- public Socket createSocket(InetAddress addr, int port) throws IOException {
- Socket socket = createSocket();
- socket.connect(new InetSocketAddress(addr, port));
- return socket;
- }
- /* @inheritDoc */
- @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;
- }
- /* @inheritDoc */
- @Override
- public Socket createSocket(String host, int port) throws IOException,
- UnknownHostException {
- Socket socket = createSocket();
- socket.connect(new InetSocketAddress(host, port));
- return socket;
- }
- /* @inheritDoc */
- @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;
- }
- /* @inheritDoc */
- @Override
- public int hashCode() {
- return proxy.hashCode();
- }
- /* @inheritDoc */
- @Override
- public boolean equals(Object obj) {
- if (this == obj)
- return true;
- if (obj == null)
- return false;
- if (!(obj instanceof SocksSocketFactory))
- return false;
- final SocksSocketFactory other = (SocksSocketFactory) obj;
- if (proxy == null) {
- if (other.proxy != null)
- return false;
- } else if (!proxy.equals(other.proxy))
- return false;
- return true;
- }
- /* @inheritDoc */
- public Configuration getConf() {
- return this.conf;
- }
- /* @inheritDoc */
- public void setConf(Configuration conf) {
- this.conf = conf;
- String proxyStr = conf.get("hadoop.socks.server");
- if ((proxyStr != null) && (proxyStr.length() > 0)) {
- setProxy(proxyStr);
- }
- }
- /**
- * Set the proxy of this socket factory as described in the string
- * parameter
- *
- * @param proxyStr the proxy address using the format "host:port"
- */
- private void setProxy(String proxyStr) {
- String[] strs = proxyStr.split(":", 2);
- if (strs.length != 2)
- throw new RuntimeException("Bad SOCKS proxy parameter: " + proxyStr);
- String host = strs[0];
- int port = Integer.parseInt(strs[1]);
- this.proxy =
- new Proxy(Proxy.Type.SOCKS, InetSocketAddress.createUnresolved(host,
- port));
- }
- }