| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 7021870 8023431 8026756 |
| * @summary Reading last gzip chain member must not close the input stream. |
| * Garbage following gzip entry must be ignored. |
| */ |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.util.zip.GZIPInputStream; |
| import java.util.zip.GZIPOutputStream; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipInputStream; |
| import java.util.zip.ZipOutputStream; |
| |
| |
| public class GZIPInZip { |
| |
| public static void main(String[] args) |
| throws Throwable { |
| |
| doTest(false, false); |
| doTest(false, true); |
| doTest(true, false); |
| doTest(true, true); |
| } |
| |
| private static void doTest(final boolean appendGarbage, |
| final boolean limitGISBuff) |
| throws Throwable { |
| |
| byte[] buf; |
| |
| try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ZipOutputStream zos = new ZipOutputStream(baos)) { |
| |
| final byte[] xbuf = { 'x' }; |
| |
| zos.putNextEntry(new ZipEntry("a.gz")); |
| GZIPOutputStream gos1 = new GZIPOutputStream(zos); |
| gos1.write(xbuf); |
| gos1.finish(); |
| if (appendGarbage) |
| zos.write(xbuf); |
| zos.closeEntry(); |
| |
| zos.putNextEntry(new ZipEntry("b.gz")); |
| GZIPOutputStream gos2 = new GZIPOutputStream(zos); |
| gos2.write(xbuf); |
| gos2.finish(); |
| zos.closeEntry(); |
| |
| zos.flush(); |
| buf = baos.toByteArray(); |
| } |
| |
| try (ByteArrayInputStream bais = new ByteArrayInputStream(buf); |
| ZipInputStream zis = new ZipInputStream(bais)) { |
| |
| zis.getNextEntry(); |
| GZIPInputStream gis1 = limitGISBuff ? |
| new GZIPInputStream(zis, 4) : |
| new GZIPInputStream(zis); |
| // try to read more than the entry has |
| gis1.skip(2); |
| |
| try { |
| zis.getNextEntry(); |
| } catch (IOException e) { |
| throw new RuntimeException("ZIP stream was prematurely closed", e); |
| } |
| } |
| } |
| } |