/*
Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FLOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
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 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.jdbc.authentication;
import java.sql.SQLException;
import java.util.List;
import java.util.Properties;
import com.mysql.jdbc.AuthenticationPlugin;
import com.mysql.jdbc.Buffer;
import com.mysql.jdbc.Connection;
import com.mysql.jdbc.StringUtils;
/**
* MySQL Clear Password Authentication Plugin
*
*/
public class MysqlClearPasswordPlugin implements AuthenticationPlugin {
private String password = null;
public void init(Connection conn, Properties props) throws SQLException {
}
public void destroy() {
this.password = null;
}
public String getProtocolPluginName() {
return "mysql_clear_password";
}
public boolean requiresConfidentiality() {
return true;
}
public boolean isReusable() {
return true;
}
public void setAuthenticationParameters(String user, String password) {
this.password = password;
}
public boolean nextAuthenticationStep(Buffer fromServer, List<Buffer> toServer) throws SQLException {
toServer.clear();
Buffer bresp = new Buffer(StringUtils.getBytes(this.password != null ? this.password : ""));
bresp.setPosition(bresp.getBufLength());
int oldBufLength = bresp.getBufLength();
bresp.writeByte((byte)0);
bresp.setBufLength(oldBufLength + 1);
bresp.setPosition(0);
toServer.add(bresp);
return true;
}
}