| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. 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. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache POI" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache POI", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR |
| * ITS 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.poi.hssf.record; |
| |
| import org.apache.poi.util.LittleEndian; |
| |
| /** |
| * Title: Password Record<P> |
| * Description: stores the encrypted password for a sheet or workbook (HSSF doesn't support encryption) |
| * REFERENCE: PG 371 Microsoft Excel 97 Developer's Kit (ISBN: 1-57231-498-2)<P> |
| * @author Andrew C. Oliver (acoliver at apache dot org) |
| * @version 2.0-pre |
| */ |
| |
| public class PasswordRecord |
| extends Record |
| { |
| public final static short sid = 0x13; |
| private short field_1_password; // not sure why this is only 2 bytes, but it is... go figure |
| |
| public PasswordRecord() |
| { |
| } |
| |
| /** |
| * Constructs a Password record and sets its fields appropriately. |
| * |
| * @param id id must be 0x13 or an exception will be throw upon validation |
| * @param size the size of the data area of the record |
| * @param data data of the record (should not contain sid/len) |
| */ |
| |
| public PasswordRecord(short id, short size, byte [] data) |
| { |
| super(id, size, data); |
| } |
| |
| /** |
| * Constructs a Password record and sets its fields appropriately. |
| * |
| * @param id id must be 0x13 or an exception will be throw upon validation |
| * @param size the size of the data area of the record |
| * @param data data of the record (should not contain sid/len) |
| * @param offset of the data |
| */ |
| |
| public PasswordRecord(short id, short size, byte [] data, int offset) |
| { |
| super(id, size, data, offset); |
| } |
| |
| protected void validateSid(short id) |
| { |
| if (id != sid) |
| { |
| throw new RecordFormatException("NOT A PASSWORD RECORD"); |
| } |
| } |
| |
| protected void fillFields(byte [] data, short size, int offset) |
| { |
| field_1_password = LittleEndian.getShort(data, 0 + offset); |
| } |
| |
| /** |
| * set the password |
| * |
| * @param password representing the password |
| */ |
| |
| public void setPassword(short password) |
| { |
| field_1_password = password; |
| } |
| |
| /** |
| * get the password |
| * |
| * @return short representing the password |
| */ |
| |
| public short getPassword() |
| { |
| return field_1_password; |
| } |
| |
| public String toString() |
| { |
| StringBuffer buffer = new StringBuffer(); |
| |
| buffer.append("[PASSWORD]\n"); |
| buffer.append(" .password = ") |
| .append(Integer.toHexString(getPassword())).append("\n"); |
| buffer.append("[/PASSWORD]\n"); |
| return buffer.toString(); |
| } |
| |
| public int serialize(int offset, byte [] data) |
| { |
| LittleEndian.putShort(data, 0 + offset, sid); |
| LittleEndian.putShort(data, 2 + offset, |
| (( short ) 0x02)); // 2 bytes (6 total) |
| LittleEndian.putShort(data, 4 + offset, getPassword()); |
| return getRecordSize(); |
| } |
| |
| public int getRecordSize() |
| { |
| return 6; |
| } |
| |
| public short getSid() |
| { |
| return this.sid; |
| } |
| |
| /** |
| * Clone this record. |
| */ |
| public Object clone() { |
| PasswordRecord clone = new PasswordRecord(); |
| clone.setPassword(field_1_password); |
| return clone; |
| } |
| |
| } |