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https://issues.apache.org/jira/browse/COMPRESS-219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582250#comment-13582250
]
Wurstbrot mit Senf commented on COMPRESS-219:
---------------------------------------------
What you did in the test, works: you wrote the stream to a file, i.e. you
actually copied the internal zip to the file. What causes the problem is the
actuall deflating of the zip within the zip.
That is: creating a new ZipArchiveInputStream from the ZipArchiveInputStream
like in the following snippet (I rewrote your code for NIO.2, sorry for that
:-():
@Test
public static void shouldReadNestedZip() throws Exception {
final Path outDir = Files.createDirectories(Paths.get("dir"));
try (ZipArchiveInputStream in = new
ZipArchiveInputStream(Files.newInputStream(Paths.get("COMPRESS-219.zip")));) {
extractZipInputStream(outDir, in);
} finally {
FileUtils.deleteDirectory(outDir.toFile());
}
}
private static void extractZipInputStream(final Path outDir, final
ZipArchiveInputStream in) throws IOException {
ZipArchiveEntry zae = in.getNextZipEntry();
while (zae != null) {
if (zae.getName().endsWith(".zip")) {
final Path outFile =
outDir.resolve(Paths.get(zae.getName().replace("^/", "")));
Files.createDirectories(outFile);
final ZipArchiveInputStream zipInZip = new ZipArchiveInputStream(in);
extractZipInputStream(outFile, zipInZip);
}
zae = in.getNextZipEntry();
}
}
> ZipArchiveInputStream: ArrayIndexOutOfBoundsException when extracting a
> STORED zip file entry from within a zip.
> ----------------------------------------------------------------------------------------------------------------
>
> Key: COMPRESS-219
> URL: https://issues.apache.org/jira/browse/COMPRESS-219
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Affects Versions: 1.4.1
> Environment: Windows (Linux as well)
> Reporter: Wurstbrot mit Senf
> Priority: Minor
> Attachments: compress-219-test.patch, test-linux.zip
>
>
> When trying to read out a ZIP file, that has been stored (Method STORE, not
> DEFLATE!, with DEFLATE it seems OK) in another ZIP file using the
> ZipArchiveInputStream, I do get an ArrayIndexOutOfBoundsException when doing
> the arraycopy in ZipArchiveInputStream#readStored(byte[], int, int) (line
> 362) because the "toRead" is not decreased by the buf.offsetInBuffer.
> I will add the zip in question as attachment.
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