/*
* $Id$
* Copyright (c) 2005-2007 Bruno Lowagie
*
* 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.
* 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 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.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;
/**
* This tool copies an existing PDF and removes potentially dangerous code that launches an application.
* @since 2.1.1 (imported from itexttoolbox project)
*/
public class RemoveLaunchApplication
extends AbstractTool {
static {
addVersion(
"$Id$");
}
/**
* 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.toolbox.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.toolbox.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.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
}
/**
* Copy an existing PDF and replace the Launch Application Action with JavaScript alerts.
*
* @param args String[]
*/
public static void main(String[] args) {
RemoveLaunchApplication tool = new RemoveLaunchApplication();
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");
}
}