com.mysql.cj.protocol.SocksProxySocketFactory Maven / Gradle / Ivy

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JDBC Type 4 driver for MySQL
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/*
 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, version 2.0, as published by the
 * Free Software Foundation.
 *
 * This program is also distributed with certain software (including but not
 * limited to OpenSSL) that is licensed under separate terms, as designated in a
 * particular file or component or in included license documentation. The
 * authors of MySQL hereby grant you an additional permission to link the
 * program and your derivative works with the separately licensed software that
 * they have included with MySQL.
 *
 * Without limiting anything contained in the foregoing, this file, which is
 * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
 * version 1.0, a copy of which can be found at
 * http://oss.oracle.com/licenses/universal-foss-exception.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
 */

package com.mysql.cj.protocol;

import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.Socket;
import java.util.Properties;

import com.mysql.cj.conf.PropertyDefinitions;

/**
 * A socket factory used to create sockets connecting through a SOCKS proxy. The socket still supports all the same TCP features as the "standard" socket.
 */
public class SocksProxySocketFactory extends StandardSocketFactory {
    public static int SOCKS_DEFAULT_PORT = 1080;

    @Override
    protected Socket createSocket(Properties props) {
        String socksProxyHost = props.getProperty(PropertyDefinitions.PNAME_socksProxyHost);
        String socksProxyPortString = props.getProperty(PropertyDefinitions.PNAME_socksProxyPort, String.valueOf(SOCKS_DEFAULT_PORT));
        int socksProxyPort = SOCKS_DEFAULT_PORT;
        try {
            socksProxyPort = Integer.valueOf(socksProxyPortString);
        } catch (NumberFormatException ex) {
            // ignore. fall back to default
        }

        return new Socket(new Proxy(Proxy.Type.SOCKS, new InetSocketAddress(socksProxyHost, socksProxyPort)));
    }
}