de.schlichtherle.truezip.sample.file.app.Decrypt Maven / Gradle / Ivy
/*
* Copyright (C) 2005-2013 Schlichtherle IT Services.
* All rights reserved. Use is subject to license terms.
*/
package de.schlichtherle.truezip.sample.file.app;
import de.schlichtherle.truezip.fs.FsSyncException;
import de.schlichtherle.truezip.sample.file.RaesFiles;
import java.io.IOException;
import java.util.ResourceBundle;
/**
* Decrypts the contents of the RAES file provided as the first argument
* into the file provided as the second argument for the main method.
*
* Please note that you should not use this utility to decrypt an RAES
* encrypted ZIP file (usually a file with a {@code ".tzp"} or
* {@code ".zip.rae"} suffix) back to a plain ZIP file.
* This is because RAES encrypted ZIP files use the "UTF-8"
* as their character set, whereas plain ZIP files use "IBM437",
* a.k.a. "CP437".
* To decrypt an RAES encrypted ZIP file to a plain ZIP file, use the
* {@code cp} command of the {@link Nzip} class instead.
* This class knows about the correct character set charsets for the
* various flavours of ZIP compatible files.
*
* @author Christian Schlichtherle
*/
public class Decrypt extends Application {
private static final String CLASS_NAME = Decrypt.class.getName();
private static final ResourceBundle resources
= ResourceBundle.getBundle(CLASS_NAME);
/** Equivalent to {@code System.exit(new Decrypt().run(args));}. */
public static void main(final String[] args) throws FsSyncException {
System.exit(new Decrypt().run(args));
}
@Override
protected int runChecked(final String[] args)
throws IllegalUsageException, IOException {
if (args.length != 2)
throw new IllegalUsageException(resources.getString("usage"));
RaesFiles.decrypt(args[0], args[1], true);
return 0;
}
}