/*
* $Id: Encrypt.java 3271 2008-04-18 20:39:42Z xlv $
* Copyright (c) 2005-2007 Bruno Lowagie, Carsten Hammer
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* This class was originally published under the MPL by Bruno Lowagie
* and Carsten Hammer.
* It was a part of iText, a Java-PDF library. You can now use it under
* the MIT License; for backward compatibility you can also use it under
* the MPL version 1.1: http://www.mozilla.org/MPL/
* A copy of the MPL license is bundled with the source code FYI.
*/
package com.lowagie.toolbox.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.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.BitsetArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.OptionArgument;
import com.lowagie.toolbox.arguments.StringArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;
/**
* Allows you to encrypt an existing PDF file.
* @since 2.1.1 (imported from itexttoolbox project) */
public class Encrypt extends AbstractTool {
static {
addVersion("$Id: Encrypt.java 3271 2008-04-18 20:39:42Z xlv $");
}
private final static int PERMISSIONS[] = {
PdfWriter.ALLOW_PRINTING,
PdfWriter.ALLOW_MODIFY_CONTENTS,
PdfWriter.ALLOW_COPY,
PdfWriter.ALLOW_MODIFY_ANNOTATIONS,
PdfWriter.ALLOW_FILL_IN,
PdfWriter.ALLOW_SCREENREADERS,
PdfWriter.ALLOW_ASSEMBLY,
PdfWriter.ALLOW_DEGRADED_PRINTING};
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 StringArgument(this, "ownerpassword", "The ownerpassword you want to add to the PDF file"));
arguments.add(new StringArgument(this, "userpassword", "The userpassword you want to add to the PDF file"));
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.toolbox.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.toolbox.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.toolbox.AbstractTool#valueHasChanged(com.lowagie.toolbox.arguments.AbstractArgument)
* @param arg StringArgument
*/
public void valueHasChanged(AbstractArgument arg) {
if (internalFrame == null) {
// if the internal frame is null, the tool was called from the command line
return;
}
// represent the changes of the argument in the internal frame
}
/**
* Encrypts an existing PDF file.
*
* @param args String[]
*/
public static void main(String[] args) {
Encrypt tool = new Encrypt();
if (args.length < 2) {
System.err.println(tool.getUsage());
}
tool.setMainArguments(args);
tool.execute();
}
/**
*
* @see com.lowagie.toolbox.AbstractTool#getDestPathPDF()
* @throws InstantiationException
* @return File
*/
protected File getDestPathPDF() throws InstantiationException {
return (File)getValue("destfile");
}
}
