1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/emul/mini/src/main/java/org/apidesign/bck2brwsr/emul/zip/GZIPHeader.java Thu Feb 07 12:58:12 2013 +0100
1.3 @@ -0,0 +1,215 @@
1.4 +/* -*-mode:java; c-basic-offset:2; -*- */
1.5 +/*
1.6 +Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
1.7 +
1.8 +Redistribution and use in source and binary forms, with or without
1.9 +modification, are permitted provided that the following conditions are met:
1.10 +
1.11 + 1. Redistributions of source code must retain the above copyright notice,
1.12 + this list of conditions and the following disclaimer.
1.13 +
1.14 + 2. Redistributions in binary form must reproduce the above copyright
1.15 + notice, this list of conditions and the following disclaimer in
1.16 + the documentation and/or other materials provided with the distribution.
1.17 +
1.18 + 3. The names of the authors may not be used to endorse or promote products
1.19 + derived from this software without specific prior written permission.
1.20 +
1.21 +THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
1.22 +INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
1.23 +FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
1.24 +INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
1.25 +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.26 +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
1.27 +OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.28 +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.29 +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
1.30 +EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.31 + */
1.32 +/*
1.33 + * This program is based on zlib-1.1.3, so all credit should go authors
1.34 + * Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu)
1.35 + * and contributors of zlib.
1.36 + */
1.37 +
1.38 +package org.apidesign.bck2brwsr.emul.zip;
1.39 +
1.40 +import org.apidesign.bck2brwsr.emul.lang.System;
1.41 +import java.io.UnsupportedEncodingException;
1.42 +
1.43 +/**
1.44 + * @see "http://www.ietf.org/rfc/rfc1952.txt"
1.45 + */
1.46 +final class GZIPHeader implements Cloneable {
1.47 +
1.48 + public static final byte OS_MSDOS = (byte) 0x00;
1.49 + public static final byte OS_AMIGA = (byte) 0x01;
1.50 + public static final byte OS_VMS = (byte) 0x02;
1.51 + public static final byte OS_UNIX = (byte) 0x03;
1.52 + public static final byte OS_ATARI = (byte) 0x05;
1.53 + public static final byte OS_OS2 = (byte) 0x06;
1.54 + public static final byte OS_MACOS = (byte) 0x07;
1.55 + public static final byte OS_TOPS20 = (byte) 0x0a;
1.56 + public static final byte OS_WIN32 = (byte) 0x0b;
1.57 + public static final byte OS_VMCMS = (byte) 0x04;
1.58 + public static final byte OS_ZSYSTEM = (byte) 0x08;
1.59 + public static final byte OS_CPM = (byte) 0x09;
1.60 + public static final byte OS_QDOS = (byte) 0x0c;
1.61 + public static final byte OS_RISCOS = (byte) 0x0d;
1.62 + public static final byte OS_UNKNOWN = (byte) 0xff;
1.63 +
1.64 + boolean text = false;
1.65 + private boolean fhcrc = false;
1.66 + long time;
1.67 + int xflags;
1.68 + int os = 255;
1.69 + byte[] extra;
1.70 + byte[] name;
1.71 + byte[] comment;
1.72 + int hcrc;
1.73 + long crc;
1.74 + boolean done = false;
1.75 + long mtime = 0;
1.76 +
1.77 + public void setModifiedTime(long mtime) {
1.78 + this.mtime = mtime;
1.79 + }
1.80 +
1.81 + public long getModifiedTime() {
1.82 + return mtime;
1.83 + }
1.84 +
1.85 + public void setOS(int os) {
1.86 + if((0<=os && os <=13) || os==255)
1.87 + this.os=os;
1.88 + else
1.89 + throw new IllegalArgumentException("os: "+os);
1.90 + }
1.91 +
1.92 + public int getOS(){
1.93 + return os;
1.94 + }
1.95 +
1.96 + public void setName(String name) {
1.97 + try{
1.98 + this.name=name.getBytes("ISO-8859-1");
1.99 + }
1.100 + catch(UnsupportedEncodingException e){
1.101 + throw new IllegalArgumentException("name must be in ISO-8859-1 "+name);
1.102 + }
1.103 + }
1.104 +
1.105 + public String getName(){
1.106 + if(name==null) return "";
1.107 + try {
1.108 + return new String(name, "ISO-8859-1");
1.109 + }
1.110 + catch (UnsupportedEncodingException e) {
1.111 + throw new IllegalArgumentException(e.toString());
1.112 + }
1.113 + }
1.114 +
1.115 + public void setComment(String comment) {
1.116 + try{
1.117 + this.comment=comment.getBytes("ISO-8859-1");
1.118 + }
1.119 + catch(UnsupportedEncodingException e){
1.120 + throw new IllegalArgumentException("comment must be in ISO-8859-1 "+name);
1.121 + }
1.122 + }
1.123 +
1.124 + public String getComment(){
1.125 + if(comment==null) return "";
1.126 + try {
1.127 + return new String(comment, "ISO-8859-1");
1.128 + }
1.129 + catch (UnsupportedEncodingException e) {
1.130 + throw new IllegalArgumentException(e.toString());
1.131 + }
1.132 + }
1.133 +
1.134 + public void setCRC(long crc){
1.135 + this.crc = crc;
1.136 + }
1.137 +
1.138 + public long getCRC(){
1.139 + return crc;
1.140 + }
1.141 +/*
1.142 + void put(Deflate d){
1.143 + int flag = 0;
1.144 + if(text){
1.145 + flag |= 1; // FTEXT
1.146 + }
1.147 + if(fhcrc){
1.148 + flag |= 2; // FHCRC
1.149 + }
1.150 + if(extra!=null){
1.151 + flag |= 4; // FEXTRA
1.152 + }
1.153 + if(name!=null){
1.154 + flag |= 8; // FNAME
1.155 + }
1.156 + if(comment!=null){
1.157 + flag |= 16; // FCOMMENT
1.158 + }
1.159 + int xfl = 0;
1.160 + if(d.level == JZlib.Z_BEST_SPEED){
1.161 + xfl |= 4;
1.162 + }
1.163 + else if (d.level == JZlib.Z_BEST_COMPRESSION){
1.164 + xfl |= 2;
1.165 + }
1.166 +
1.167 + d.put_short((short)0x8b1f); // ID1 ID2
1.168 + d.put_byte((byte)8); // CM(Compression Method)
1.169 + d.put_byte((byte)flag);
1.170 + d.put_byte((byte)mtime);
1.171 + d.put_byte((byte)(mtime>>8));
1.172 + d.put_byte((byte)(mtime>>16));
1.173 + d.put_byte((byte)(mtime>>24));
1.174 + d.put_byte((byte)xfl);
1.175 + d.put_byte((byte)os);
1.176 +
1.177 + if(extra!=null){
1.178 + d.put_byte((byte)extra.length);
1.179 + d.put_byte((byte)(extra.length>>8));
1.180 + d.put_byte(extra, 0, extra.length);
1.181 + }
1.182 +
1.183 + if(name!=null){
1.184 + d.put_byte(name, 0, name.length);
1.185 + d.put_byte((byte)0);
1.186 + }
1.187 +
1.188 + if(comment!=null){
1.189 + d.put_byte(comment, 0, comment.length);
1.190 + d.put_byte((byte)0);
1.191 + }
1.192 + }
1.193 +*/
1.194 + @Override
1.195 + public Object clone() throws CloneNotSupportedException {
1.196 + GZIPHeader gheader = (GZIPHeader)super.clone();
1.197 + byte[] tmp;
1.198 + if(gheader.extra!=null){
1.199 + tmp=new byte[gheader.extra.length];
1.200 + System.arraycopy(gheader.extra, 0, tmp, 0, tmp.length);
1.201 + gheader.extra = tmp;
1.202 + }
1.203 +
1.204 + if(gheader.name!=null){
1.205 + tmp=new byte[gheader.name.length];
1.206 + System.arraycopy(gheader.name, 0, tmp, 0, tmp.length);
1.207 + gheader.name = tmp;
1.208 + }
1.209 +
1.210 + if(gheader.comment!=null){
1.211 + tmp=new byte[gheader.comment.length];
1.212 + System.arraycopy(gheader.comment, 0, tmp, 0, tmp.length);
1.213 + gheader.comment = tmp;
1.214 + }
1.215 +
1.216 + return gheader;
1.217 + }
1.218 +}