127 lines
4.9 KiB
Java
127 lines
4.9 KiB
Java
/*
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* Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import static java.util.zip.ZipFile.CENOFF;
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import static java.util.zip.ZipFile.CENTIM;
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import static java.util.zip.ZipFile.ENDHDR;
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import static java.util.zip.ZipFile.ENDOFF;
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import static java.util.zip.ZipFile.LOCTIM;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.time.Instant;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import java.util.zip.ZipOutputStream;
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import jdk.test.lib.Utils;
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/* @test
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* @bug 8184940 8188869
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* @summary JDK 9 rejects zip files where the modified day or month is 0
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* or otherwise represent an invalid date, such as 1980-02-30 24:60:60
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* @author Liam Miller-Cushon
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* @library /test/lib
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*/
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public class ZeroDate {
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public static void main(String[] args) throws Exception {
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// create a zip file, and read it in as a byte array
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Path path = Utils.createTempFile("bad", ".zip");
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try {
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try (OutputStream os = Files.newOutputStream(path);
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ZipOutputStream zos = new ZipOutputStream(os)) {
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ZipEntry e = new ZipEntry("x");
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zos.putNextEntry(e);
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zos.write((int) 'x');
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}
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int len = (int) Files.size(path);
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byte[] data = new byte[len];
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try (InputStream is = Files.newInputStream(path)) {
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is.read(data);
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}
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// year, month, day are zero
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testDate(data.clone(), 0, LocalDate.of(1979, 11, 30).atStartOfDay());
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// only year is zero
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testDate(data.clone(), 0 << 25 | 4 << 21 | 5 << 16, LocalDate.of(1980, 4, 5).atStartOfDay());
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// month is greater than 12
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testDate(data.clone(), 0 << 25 | 13 << 21 | 1 << 16, LocalDate.of(1981, 1, 1).atStartOfDay());
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// 30th of February
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testDate(data.clone(), 0 << 25 | 2 << 21 | 30 << 16, LocalDate.of(1980, 3, 1).atStartOfDay());
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// 30th of February, 24:60:60
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testDate(data.clone(), 0 << 25 | 2 << 21 | 30 << 16 | 24 << 11 | 60 << 5 | 60 >> 1,
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LocalDateTime.of(1980, 3, 2, 1, 1, 0));
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} finally {
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Files.delete(path);
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}
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}
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private static void testDate(byte[] data, int date, LocalDateTime expected) throws IOException {
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// set the datetime
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int endpos = data.length - ENDHDR;
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int cenpos = u16(data, endpos + ENDOFF);
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int locpos = u16(data, cenpos + CENOFF);
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writeU32(data, cenpos + CENTIM, date);
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writeU32(data, locpos + LOCTIM, date);
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// ensure that the archive is still readable, and the date is 1979-11-30
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Path path = Utils.createTempFile("out", ".zip");
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try (OutputStream os = Files.newOutputStream(path)) {
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os.write(data);
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}
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try (ZipFile zf = new ZipFile(path.toFile())) {
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ZipEntry ze = zf.entries().nextElement();
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Instant actualInstant = ze.getLastModifiedTime().toInstant();
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Instant expectedInstant = expected.atZone(ZoneId.systemDefault()).toInstant();
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if (!actualInstant.equals(expectedInstant)) {
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throw new AssertionError(
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String.format("actual: %s, expected: %s", actualInstant, expectedInstant));
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}
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} finally {
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Files.delete(path);
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}
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}
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static int u8(byte[] data, int offset) {
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return data[offset] & 0xff;
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}
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static int u16(byte[] data, int offset) {
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return u8(data, offset) + (u8(data, offset + 1) << 8);
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}
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private static void writeU32(byte[] data, int pos, int value) {
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data[pos] = (byte) (value & 0xff);
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data[pos + 1] = (byte) ((value >> 8) & 0xff);
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data[pos + 2] = (byte) ((value >> 16) & 0xff);
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data[pos + 3] = (byte) ((value >> 24) & 0xff);
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}
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}
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