/*
* $Id: RemoveLaunchApplication.java,v 1.4 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 com.lowagie.text.pdf.PRIndirectReference;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfObject;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfString;
import com.lowagie.tools.arguments.FileArgument;
import com.lowagie.tools.arguments.PdfFilter;
import com.lowagie.tools.arguments.ToolArgument;
/**
* This tool copies an existing PDF and removes potentially dangerous code that launches an application.
*/
public class RemoveLaunchApplication
extends AbstractTool {
static {
addVersion(
"$Id: RemoveLaunchApplication.java,v 1.4 2005/11/29 21:05:02 blowagie Exp $");
}
/**
* Constructs a ReversePages object.
*/
public RemoveLaunchApplication() {
menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
arguments.add(new FileArgument(this, "srcfile",
"The file from which you want to remove Launch Application actions", false,
new PdfFilter()));
arguments.add(new FileArgument(this, "destfile",
"The file to which the cleaned up version of the original PDF has to be written", true,
new PdfFilter()));
}
/**
* @see com.lowagie.tools.plugins.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("Remove Launch Applications", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== Remove Launch Applications 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");
}
File src = (File) getValue("srcfile");
if (getValue("destfile") == null) {
throw new InstantiationException(
"You need to choose a destination file");
}
File dest = (File) getValue("destfile");
// we create a reader for a certain document
PdfReader reader = new PdfReader(src.getAbsolutePath());
PdfObject o;
PdfDictionary d;
PdfDictionary l;
PdfName n;
for (int i = 1; i < reader.getXrefSize(); i++) {
o = reader.getPdfObject(i);
if (o instanceof PdfDictionary) {
d = (PdfDictionary)o;
o = d.get(PdfName.A);
if (o == null) continue;
if (o instanceof PdfDictionary) {
l = (PdfDictionary)o;
}
else {
PRIndirectReference r =(PRIndirectReference)o;
l = (PdfDictionary)reader.getPdfObject(r.getNumber());
}
n = (PdfName)l.get(PdfName.S);
if (PdfName.LAUNCH.equals(n)) {
if (l.get(PdfName.F) != null) {
System.out.println("Removed: " + l.get(PdfName.F));
l.remove(PdfName.F);
}
if (l.get(PdfName.WIN) != null) {
System.out.println("Removed: " + l.get(PdfName.WIN));
l.remove(PdfName.WIN);
}
l.put(PdfName.S, PdfName.JAVASCRIPT);
l.put(PdfName.JS, new PdfString("app.alert('Launch Application Action removed by iText');\r"));
}
}
}
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(dest));
stamper.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
/**
* @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
}
/**
* Copy an existing PDF and replace the Launch Application Action with JavaScript alerts.
* @param args
*/
public static void main(String[] args) {
RemoveLaunchApplication tool = new RemoveLaunchApplication();
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");
}
}