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JDBC driver for MariaDB and MySQL
/*
*
* MariaDB Client for Java
*
* Copyright (c) 2012-2014 Monty Program Ab.
* Copyright (c) 2015-2020 MariaDB Corporation Ab.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, write to Monty Program Ab [email protected].
*
* This particular MariaDB Client for Java file is work
* derived from a Drizzle-JDBC. Drizzle-JDBC file which is covered by subject to
* the following copyright and notice provisions:
*
* Copyright (c) 2009-2011, Marcus Eriksson
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* Neither the name of the driver nor the names of its contributors may not be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
*/
package org.mariadb.jdbc.internal.com.send.authentication;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
import org.mariadb.jdbc.authentication.AuthenticationPlugin;
import org.mariadb.jdbc.internal.com.read.Buffer;
import org.mariadb.jdbc.internal.io.input.PacketInputStream;
import org.mariadb.jdbc.internal.io.output.PacketOutputStream;
import org.mariadb.jdbc.util.Options;
public class ClearPasswordPlugin implements AuthenticationPlugin {
public static final String TYPE = "mysql_clear_password";
private String authenticationData;
private String passwordCharacterEncoding;
@Override
public String name() {
return "mysql clear password";
}
@Override
public String type() {
return TYPE;
}
@Override
public boolean mustUseSsl() {
return true;
}
public void initialize(String authenticationData, byte[] authData, Options options) {
this.authenticationData = authenticationData;
this.passwordCharacterEncoding = options.passwordCharacterEncoding;
}
/**
* Send password in clear text to server.
*
* @param out out stream
* @param in in stream
* @param sequence packet sequence
* @return response packet
* @throws IOException if socket error
*/
public Buffer process(PacketOutputStream out, PacketInputStream in, AtomicInteger sequence)
throws IOException {
if (authenticationData == null || authenticationData.isEmpty()) {
out.writeEmptyPacket(sequence.incrementAndGet());
} else {
out.startPacket(sequence.incrementAndGet());
byte[] bytePwd;
if (passwordCharacterEncoding != null && !passwordCharacterEncoding.isEmpty()) {
bytePwd = authenticationData.getBytes(passwordCharacterEncoding);
} else {
bytePwd = authenticationData.getBytes();
}
out.write(bytePwd);
out.write(0);
out.flush();
}
Buffer buffer = in.getPacket(true);
sequence.set(in.getLastPacketSeq());
return buffer;
}
}