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/**
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* Back 2 Browser Bytecode Translator
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* Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. Look for COPYING file in the top folder.
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* If not, see http://opensource.org/licenses/GPL-2.0.
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*/
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package org.apidesign.bck2brwsr.emul.zip;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.zip.ZipEntry;
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/**
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*
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* @author Jaroslav Tulach <jtulach@netbeans.org>
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*/
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final class ZipArchive {
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private Entry first;
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public static ZipArchive createZip(InputStream is) throws IOException {
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ZipArchive a = new ZipArchive();
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readZip(is, a);
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return a;
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}
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public static ZipArchive createReal(InputStream is) throws IOException {
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ZipArchive a = new ZipArchive();
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realZip(is, a);
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return a;
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}
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/**
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* Registers entry name and data
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*/
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final void register(String entry, InputStream is) throws IOException {
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byte[] arr = new byte[12 * 4096];
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for (int i = 0; i < arr.length; i++) {
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int ch = is.read();
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if (ch == -1) {
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byte[] tmp = new byte[i];
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FastJar.arraycopy(arr, 0, tmp, 0, i);
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arr = tmp;
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break;
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}
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arr[i] = (byte) ch;
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}
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first = new Entry (entry, arr, first);
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}
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@Override
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public String toString() {
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StringBuilder sb = new StringBuilder();
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Entry e = first;
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while (e != null) {
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String string = e.name;
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byte[] bs = e.arr;
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sb.append(string).append(" = ").append(toString(bs)).append("\n");
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e = e.next;
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}
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return sb.toString();
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}
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public void assertEquals(ZipArchive zip, String msg) {
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boolean ok = true;
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StringBuilder sb = new StringBuilder();
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sb.append(msg);
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Entry e = first;
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while (e != null) {
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String string = e.name;
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byte[] bs = e.arr;
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byte[] other = zip.find(string);
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e = e.next;
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sb.append("\n");
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if (other == null) {
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sb.append("EXTRA ").append(string).append(" = ").append(toString(bs));
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ok = false;
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continue;
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}
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if (equals(bs, other)) {
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sb.append("OK ").append(string);
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continue;
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} else {
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sb.append("DIFF ").append(string).append(" = ").append(toString(bs)).append("\n");
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sb.append(" TO").append(string).append(" = ").append(toString(other)).append("\n");
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ok = false;
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continue;
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}
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}
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e = zip.first;
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while (e != null) {
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String string = e.name;
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if (find(string) == null) {
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sb.append("MISS ").append(string).append(" = ").append(toString(e.arr));
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ok = false;
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}
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e = e.next;
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}
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if (!ok) {
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assert false : sb.toString();
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}
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}
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public static void readZip(InputStream is, ZipArchive data) throws IOException {
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ZipInputStream zip = new org.apidesign.bck2brwsr.emul.zip.ZipInputStream(is);
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for (;;) {
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ZipEntry en = zip.getNextEntry();
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if (en == null) {
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return;
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}
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data.register(en.getName(), zip);
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}
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}
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public static void realZip(InputStream is, ZipArchive data) throws IOException {
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java.util.zip.ZipInputStream zip = new java.util.zip.ZipInputStream(is);
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for (;;) {
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ZipEntry en = zip.getNextEntry();
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if (en == null) {
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return;
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}
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data.register(en.getName(), zip);
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}
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}
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private byte[] find(String name) {
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Entry e = first;
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while (e != null) {
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if (e.name.equals(name)) {
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return e.arr;
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}
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e = e.next;
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}
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return null;
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}
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private boolean equals(byte[] bs, byte[] other) {
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if (bs.length != other.length) {
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return false;
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}
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for (int i = 0; i < bs.length; i++) {
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if (bs[i] != other[i]) {
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return false;
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}
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}
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return true;
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}
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private Object toString(byte[] arr) {
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StringBuilder sb = new StringBuilder();
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sb.append("[");
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String sep = "";
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for (int i = 0; i < arr.length; i++) {
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sb.append(sep).append(arr[i]);
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sep = ", ";
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}
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sb.append("]");
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return sb.toString();
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}
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private static final class Entry {
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final String name;
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final byte[] arr;
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final Entry next;
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public Entry(String name, byte[] arr, Entry next) {
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this.name = name;
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this.arr = arr;
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this.next = next;
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}
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}
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}
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