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/*
* Copyright (c) 2014, 2016, 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.
*/
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.ArrayList;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
/*
* @test
* @bug 8000650 8150469
* @summary unpack200.exe should check gzip crc
* @compile -XDignore.symbol.file Utils.java PackChecksum.java
* @run main PackChecksum
* @author kizune
*/
public class PackChecksum {
final int TRAILER_LEN = 8;
final List<String> cmdsList = new ArrayList<>();
static enum Case {
CRC32,
ISIZE,
BOTH;
};
public static void main(String... args) throws Exception {
new PackChecksum().run();
}
void run() throws Exception {
testBrokenTrailer(Case.CRC32); // negative
testBrokenTrailer(Case.ISIZE); // negative
testBrokenTrailer(Case.BOTH); // negative
testMultipleSegments();
}
void testMultipleSegments() throws Exception {
File inputJar = new File("input.jar");
Utils.copyFile(Utils.getGoldenJar(), inputJar);
cmdsList.clear();
File testPack = new File("out.jar.pack.gz");
cmdsList.clear();
cmdsList.add(Utils.getPack200Cmd());
// force multiple segments
cmdsList.add("--segment-limit=100");
cmdsList.add(testPack.getName());
cmdsList.add(inputJar.getName());
Utils.runExec(cmdsList);
File destFile = new File("dst.jar");
cmdsList.clear();
cmdsList.add(Utils.getUnpack200Cmd());
cmdsList.add(testPack.getName());
cmdsList.add(destFile.getName());
try {
Utils.runExec(cmdsList);
if (!destFile.exists()) {
throw new Exception("file not created: " + destFile);
}
} finally {
if (inputJar.exists())
inputJar.delete();
if (testPack.exists())
testPack.delete();
if (destFile.exists())
destFile.delete();
}
}
void testBrokenTrailer(Case type) throws Exception {
System.out.println("Testing: case " + type);
// Create a fresh .jar file
File testFile = new File("src_tools.jar");
File testPack = new File("src_tools.pack.gz");
generateJar(testFile);
cmdsList.clear();
// Create .pack file
cmdsList.add(Utils.getPack200Cmd());
cmdsList.add(testPack.getName());
cmdsList.add(testFile.getName());
Utils.runExec(cmdsList);
// mutate the checksum of the packed file
RandomAccessFile raf = new RandomAccessFile(testPack, "rw");
switch (type) {
case CRC32:
raf.seek(raf.length() - TRAILER_LEN);
raf.writeInt(0x0dea0a0d);
break;
case ISIZE:
raf.seek(raf.length() - (TRAILER_LEN/2));
raf.writeInt(0x0b0e0e0f);
break;
default:
raf.seek(raf.length() - (TRAILER_LEN));
raf.writeLong(0x0dea0a0d0b0e0e0fL);
break;
}
raf.close();
File dstFile = new File("dst_tools.jar");
if (dstFile.exists()) {
dstFile.delete();
}
cmdsList.clear();
cmdsList.add(Utils.getUnpack200Cmd());
cmdsList.add(testPack.getName());
cmdsList.add(dstFile.getName());
boolean processFailed = false;
try {
Utils.runExec(cmdsList);
} catch (RuntimeException re) {
// unpack200 should exit with non-zero exit code
processFailed = true;
} finally {
// tidy up
if (testFile.exists())
testFile.delete();
if (testPack.exists())
testPack.delete();
if (!processFailed) {
throw new Exception("case " + type +
": file with incorrect CRC, unpacked without the error.");
}
if (dstFile.exists()) {
dstFile.delete();
throw new Exception("case " + type +
": file exists: " + dstFile);
}
}
}
void generateJar(File result) throws IOException {
if (result.exists()) {
result.delete();
}
try (JarOutputStream output = new JarOutputStream(new FileOutputStream(result)); ) {
for (int i = 0 ; i < 100 ; i++) {
JarEntry e = new JarEntry("F-" + i + ".txt");
output.putNextEntry(e);
}
output.flush();
output.close();
}
}
}
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