You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@commons.apache.org by "Kirk Hardy (JIRA)" <ji...@apache.org> on 2018/11/06 03:12:00 UTC
[jira] [Updated] (COMPRESS-469) java.io.IOException: Error detected
parsing the header on un-archiving. Archive untars fine in BSDTar and JTar
[ https://issues.apache.org/jira/browse/COMPRESS-469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kirk Hardy updated COMPRESS-469:
--------------------------------
Environment:
Java version: 1.8.0_192, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_192.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.14", arch: "x86_64", family: "mac"
bsdtar 2.8.3 - libarchive 2.8.3
was:
Maven home: /usr/local/Cellar/maven/3.5.4/libexec
Java version: 1.8.0_192, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_192.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.14", arch: "x86_64", family: "mac"
bsdtar 2.8.3 - libarchive 2.8.3
> java.io.IOException: Error detected parsing the header on un-archiving. Archive untars fine in BSDTar and JTar
> --------------------------------------------------------------------------------------------------------------
>
> Key: COMPRESS-469
> URL: https://issues.apache.org/jira/browse/COMPRESS-469
> Project: Commons Compress
> Issue Type: Bug
> Affects Versions: 1.18
> Environment: Java version: 1.8.0_192, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_192.jdk/Contents/Home/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "mac os x", version: "10.14", arch: "x86_64", family: "mac"
>
> bsdtar 2.8.3 - libarchive 2.8.3
> Reporter: Kirk Hardy
> Priority: Major
> Attachments: compress-bug-POC.tar.gz
>
>
> Using TarArchiveInputStream to parse this tar archive results in a
> `java.io.IOException: Error detected parsing the header`
> `Caused by: java.lang.IllegalArgumentException: Invalid byte 78 at offset 8 in '00000000NaN\{NUL}' len=12`
>
> The `00000000NaN\{NUL}` value is indeed found in the tar archive at the point that TarArchiveInputStream finds it and errors, but both BSDTar from a bash shell and JTar from a Java environment handle the archive fine, including the file with the malformed header. My commons-compress code is:
> {code:java}
> private static List<File> unTar(final File inputFile, final File outputDir) throws FileNotFoundException, IOException, ArchiveException {
> System.out.println(String.format("Untaring %s to dir %s.", inputFile.getAbsolutePath(), outputDir.getAbsolutePath()));
> final List<File> untaredFiles = new LinkedList<File>();
> final InputStream is = new FileInputStream(inputFile);
> final TarArchiveInputStream debInputStream = (TarArchiveInputStream) new ArchiveStreamFactory().createArchiveInputStream("tar", is);
> TarArchiveEntry entry = null;
> while ((entry = (TarArchiveEntry) debInputStream.getNextEntry()) != null) {
> final File outputFile = new File(outputDir, entry.getName());
> if (entry.isDirectory()) {
> System.out.println(String.format("Attempting to write output directory %s.", outputFile.getAbsolutePath()));
> if (!outputFile.exists()) {
> System.out
> .println(String.format("Attempting to create output directory %s.", outputFile.getAbsolutePath()));
> if (!outputFile.mkdirs()) {
> throw new IllegalStateException(
> String.format("Couldn't create directory %s.", outputFile.getAbsolutePath()));
> }
> }
> }
> else {
> System.out.println(String.format("Creating output file %s.", outputFile.getAbsolutePath()));
> final OutputStream outputFileStream = new FileOutputStream(outputFile);
> IOUtils.copy(debInputStream, outputFileStream);
> outputFileStream.close();
> }
> untaredFiles.add(outputFile);
> }
> debInputStream.close();
> return untaredFiles;
> }
> {code}
> [^compress-bug-POC.tar.gz]
> I've attached an archive of my proof-of-concept code that un-archives the problem archive using JTar, then attempts to un-archive it using commons-compress. The problem archive is included. Unfortunately I wasn't involved in the creation of the problem archive, it was taken downloaded from NPM last year, so I don't have any details about the archival process that caused the malformed header.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)