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/*
* $Id: Encrypt.java,v 1.11 2005/11/29 21:05:02 blowagie Exp $
* $Name: $
*
* Copyright 2005 by Bruno Lowagie.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.tools.plugins;
import java.io.File;
import java.io.FileOutputStream;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;
import com.lowagie.text.pdf.PdfEncryptor;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.tools.arguments.BitsetArgument;
import com.lowagie.tools.arguments.FileArgument;
import com.lowagie.tools.arguments.OptionArgument;
import com.lowagie.tools.arguments.PdfFilter;
import com.lowagie.tools.arguments.ToolArgument;
/**
* Allows you to encrypt an existing PDF file.
*/
public class Encrypt extends AbstractTool {
static {
addVersion("$Id: Encrypt.java,v 1.11 2005/11/29 21:05:02 blowagie Exp $");
}
private final static int PERMISSIONS[] = {
PdfWriter.AllowPrinting,
PdfWriter.AllowModifyContents,
PdfWriter.AllowCopy,
PdfWriter.AllowModifyAnnotations,
PdfWriter.AllowFillIn,
PdfWriter.AllowScreenReaders,
PdfWriter.AllowAssembly,
PdfWriter.AllowDegradedPrinting};
private final static String PERMISSION_OPTIONS[] = {
"AllowPrinting",
"AllowModifyContents",
"AllowCopy",
"AllowModifyAnnotations",
"AllowFillIn (128 bit only)",
"AllowScreenReaders (128 bit only)",
"AllowAssembly (128 bit only)",
"AllowDegradedPrinting (128 bit only)"
};
/**
* Constructs an Encrypt object.
*/
public Encrypt() {
arguments.add(new FileArgument(this, "srcfile", "The file you want to encrypt", false, new PdfFilter()));
arguments.add(new FileArgument(this, "destfile", "The file to which the encrypted PDF has to be written", true, new PdfFilter()));
arguments.add(new ToolArgument(this, "ownerpassword", "The ownerpassword you want to add to the PDF file", String.class.getName()));
arguments.add(new ToolArgument(this, "userpassword", "The userpassword you want to add to the PDF file", String.class.getName()));
arguments.add(new BitsetArgument(this, "permissions", "Permissions on the file", PERMISSION_OPTIONS));
OptionArgument oa = new OptionArgument(this, "strength", "Strength of the encryption");
oa.addOption("40 bit encryption", "40");
oa.addOption("128 bit encryption", "128");
arguments.add(oa);
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("Encrypt", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== Encrypt OPENED ===");
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#execute()
*/
public void execute() {
try {
if (getValue("srcfile") == null) throw new InstantiationException("You need to choose a sourcefile");
if (getValue("destfile") == null) throw new InstantiationException("You need to choose a destination file");
int permissions = 0;
String p = (String)getValue("permissions");
if (p != null) {
for (int k = 0; k < p.length(); ++k) {
permissions |= (p.charAt(k) == '0' ? 0 : PERMISSIONS[k]);
}
}
byte[] userpassword = null;
if (getValue("userpassword") != null) {
userpassword = ((String)getValue("userpassword")).getBytes();
}
byte[] ownerpassword = null;
if (getValue("ownerpassword") != null) {
ownerpassword = ((String)getValue("ownerpassword")).getBytes();
}
PdfReader reader = new PdfReader(((File)getValue("srcfile")).getAbsolutePath());
PdfEncryptor.encrypt(
reader,
new FileOutputStream((File)getValue("destfile")),
userpassword,
ownerpassword,
permissions,
"128".equals(getValue("strength"))
);
}
catch(Exception e) {
JOptionPane.showMessageDialog(internalFrame,
e.getMessage(),
e.getClass().getName(),
JOptionPane.ERROR_MESSAGE);
System.err.println(e.getMessage());
}
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#valueHasChanged(com.lowagie.tools.arguments.ToolArgument)
*/
public void valueHasChanged(ToolArgument arg) {
if (internalFrame == null) {
// if the internal frame is null, the tool was called from the commandline
return;
}
// represent the changes of the argument in the internal frame
}
/**
* Encrypts an existing PDF file.
* @param args
*/
public static void main(String[] args) {
Encrypt tool = new Encrypt();
if (args.length < 2) {
System.err.println(tool.getUsage());
}
tool.setArguments(args);
tool.execute();
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#getDestPathPDF()
*/
protected File getDestPathPDF() throws InstantiationException {
return (File)getValue("destfile");
}
}
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