/*
This file is part of Socks via HTTP.
This package is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Socks via HTTP 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Socks via HTTP; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Title : ByteUtils.java
// Version : 1.2
// Copyright : Copyright (c) 2001-2002
// Author : Florent CUETO & Sebastien LEBRETON
// Description : Class to manipulate bytes
//package socksviahttp.core.util;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
public class ByteUtils {
public static byte[] packRaw(byte[] b) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
GZIPOutputStream zos = new GZIPOutputStream(baos);
zos.write(b);
zos.close();
return baos.toByteArray();
}
public static byte[] unpackRaw(byte[] b) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ByteArrayInputStream bais = new ByteArrayInputStream(b);
GZIPInputStream zis = new GZIPInputStream(bais);
byte[] tmpBuffer = new byte[256];
int n;
while ((n = zis.read(tmpBuffer)) >= 0)
baos.write(tmpBuffer, 0, n);
zis.close();
return baos.toByteArray();
}
public static byte[] encryptRaw(byte[] key, byte[] b) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
for (int i = 0; i < b.length; i++) {
baos.write(b[i] ^ key[i % key.length]);
}
// baos.close();
return (baos.toByteArray());
}
public static byte[] decryptRaw(byte[] key, byte[] b) throws IOException {
return (encryptRaw(key, b));
}
}