#8 MalformedInputException when default charset is not UTF-8

[Gerrit Hohl]

In the DebianPackageParserImpl class the TarArchiveInputStream is opened without passing an encoding. The results in the stream using the default charset of the JVM, also TAR entries are encoded using UTF-8. This leads to exceptions if the default charset is e.g. US-ASCII.

E.g. when parsing the file ca-certificates_20170717~16.04.2_all.deb the TarArchiveInputStream can't process the entry ./usr/share/ca-certificates/mozilla/TÜRKTRUST_Elektronik_Sertifika_Hizmet_Sağlayıcısı_H5.crt. It will result in the following exception (excerpt of the stack trace):

Caused by: java.io.IOException: Couldn't read entry |data.tar.xz| from AR archive |/tmp/ca-certificates_20170717~16.04.2_all.deb|: Input length = 1
    at net.sourceforge.javadpkg.impl.DebianPackageParserImpl.readData(DebianPackageParserImpl.java:532)
    at net.sourceforge.javadpkg.impl.DebianPackageParserImpl.parseDebianPackage(DebianPackageParserImpl.java:168)
    at net.sourceforge.javadpkg.impl.DebianPackageParserImpl.parseDebianPackage(DebianPackageParserImpl.java:139)
    at de.aurenz.webfox.updater.logic.update.impl.UpdateProcessImpl.parsePackages(UpdateProcessImpl.java:781)
    ... 3 more
Caused by: java.nio.charset.MalformedInputException: Input length = 1
    at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
    at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:816)
    at org.apache.commons.compress.archivers.zip.NioZipEncoding.decode(NioZipEncoding.java:133)
    at org.apache.commons.compress.archivers.tar.TarUtils.parseName(TarUtils.java:298)
    at org.apache.commons.compress.archivers.tar.TarArchiveEntry.parseTarHeader(TarArchiveEntry.java:1246)
    at org.apache.commons.compress.archivers.tar.TarArchiveEntry.parseTarHeader(TarArchiveEntry.java:1237)
    at org.apache.commons.compress.archivers.tar.TarArchiveEntry.<init>(TarArchiveEntry.java:373)
    at org.apache.commons.compress.archivers.tar.TarArchiveInputStream.getNextTarEntry(TarArchiveInputStream.java:283)
    at net.sourceforge.javadpkg.impl.DebianPackageParserImpl.readData(DebianPackageParserImpl.java:451)
    ... 6 more

[Gerrit Hohl]

Fixed in revision #24.