/*
MariaDB Client for Java
Copyright (c) 2012-2014 Monty Program 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 info@montyprogram.com.
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 , Stephane Giron
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;
import org.mariadb.jdbc.internal.com.read.ErrorPacket;
import org.mariadb.jdbc.internal.io.input.PacketInputStream;
import org.mariadb.jdbc.internal.io.output.PacketOutputStream;
import org.mariadb.jdbc.internal.com.read.Buffer;
import javax.swing.*;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;
import java.awt.*;
import java.io.Console;
import java.io.EOFException;
import java.io.IOException;
import java.sql.SQLException;
import java.util.Arrays;
import static org.mariadb.jdbc.internal.com.Packet.*;
public class SendPamAuthPacket extends AbstractAuthSwitchSendResponsePacket implements InterfaceAuthSwitchSendResponsePacket {
private PacketInputStream reader;
public SendPamAuthPacket(PacketInputStream reader, String password, byte[] authData, int packSeq, String passwordCharacterEncoding) {
super(packSeq, authData, password, passwordCharacterEncoding);
this.reader = reader;
}
/**
* Send native password stream.
*
* @param pos database socket
* @throws IOException if a connection error occur
*/
public void send(PacketOutputStream pos) throws IOException, SQLException {
byte type = authData[0];
String promptb;
//conversation is :
// - first byte is information tell if question is a password or clear text.
// - other bytes are the question to user
while (true) {
promptb = new String(Arrays.copyOfRange(authData, 1, authData.length));
if ("Password: ".equals(promptb) && password != null && !"".equals(password)) {
//ask for password
pos.startPacket(packSeq);
byte[] bytePwd;
if (passwordCharacterEncoding != null && !passwordCharacterEncoding.isEmpty()) {
bytePwd = password.getBytes(passwordCharacterEncoding);
} else {
bytePwd = password.getBytes();
}
pos.write(bytePwd, 0, bytePwd.length);
pos.write(0);
} else {
// 2 means "read the input with the echo enabled"
// 4 means "password-like input, echo disabled"
boolean isPassword = type == 4;
//ask user to answer
String password = showInputDialog(promptb, isPassword);
if (password == null) {
throw new SQLException("Error during PAM authentication : dialog input cancelled");
}
pos.startPacket(packSeq);
byte[] bytePwd;
if (passwordCharacterEncoding != null && !passwordCharacterEncoding.isEmpty()) {
bytePwd = password.getBytes(passwordCharacterEncoding);
} else {
bytePwd = password.getBytes();
}
pos.write(bytePwd, 0, bytePwd.length);
pos.write(0);
}
pos.flush();
try {
Buffer buffer = reader.getPacket(true);
packSeq = reader.getLastPacketSeq() + 1;
type = buffer.getByteAt(0);
if (type == EOF || type == OK) {
return;
}
if (type == ERROR) {
ErrorPacket errorPacket = new ErrorPacket(buffer);
throw new SQLException("Error during PAM authentication : " + errorPacket.getMessage());
}
authData = buffer.readRawBytes(buffer.remaining());
} catch (EOFException eof) {
throw new SQLException("Error during PAM authentication reading server response : " + eof.getMessage()
+ "\nPlease check that value of @@connect_timeout is not too low.");
}
}
}
private String showInputDialog(String label, boolean isPassword) throws IOException {
String password;
try {
if (isPassword) {
JPasswordField pwd = new JPasswordField();
pwd.addAncestorListener(new RequestFocusListener());
int action = JOptionPane.showConfirmDialog(null, pwd, label, JOptionPane.OK_CANCEL_OPTION);
if (action == JOptionPane.OK_OPTION) {
password = new String(pwd.getPassword());
} else {
throw new IOException("Error during PAM authentication : dialog input cancelled");
}
} else {
password = JOptionPane.showInputDialog(label);
}
} catch (HeadlessException noGraphicalEnvironment) {
//no graphical environment
Console console = System.console();
if (console == null) {
throw new IOException("Error during PAM authentication : input by console not possible");
}
if (isPassword) {
char[] passwordChar = console.readPassword(label);
password = new String(passwordChar);
} else {
password = console.readLine(label);
}
}
if (password != null) {
return password;
} else {
throw new IOException("Error during PAM authentication : dialog input cancelled");
}
}
@Override
public void handleResultPacket(PacketInputStream reader) throws SQLException, IOException {
//do nothing, since the OK packet has already been read in the send conversation
}
/**
* Force focus to input field.
*/
public class RequestFocusListener implements AncestorListener {
private boolean removeListener;
public RequestFocusListener() {
this(true);
}
public RequestFocusListener(boolean removeListener) {
this.removeListener = removeListener;
}
@Override
public void ancestorAdded(AncestorEvent ancestorEvent) {
JComponent component = ancestorEvent.getComponent();
component.requestFocusInWindow();
if (removeListener) {
component.removeAncestorListener(this);
}
}
@Override
public void ancestorMoved(AncestorEvent ancestorEvent) {
//do nothing
}
@Override
public void ancestorRemoved(AncestorEvent ancestorEvent) {
//do nothing
}
}
}