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https://issues.apache.org/jira/browse/TIKA-953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13487957#comment-13487957
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Nick Burch commented on TIKA-953:
---------------------------------
File isn't getting this on the regular magic, it's only found via a special
helper in is_tar.c
I'm not sure if we can represent that same logic in our mime magic structure,
as from first glance it's doing a load of checksum related stuff, but if
someone wants to investigate that's probably the best place to start!
> Tika failed to recognize non-ustar Tar file?
> ---------------------------------------------
>
> Key: TIKA-953
> URL: https://issues.apache.org/jira/browse/TIKA-953
> Project: Tika
> Issue Type: Bug
> Components: mime
> Affects Versions: 1.1
> Reporter: Jing Li
> Fix For: 1.2
>
> Attachments: test2.tar, test.tar
>
>
> The file type indeed is "POSIX tar archive (GNU)" when I use command "file"
> in linux, but Tika recognize it as "application/xhtml+xml". The class I used
> with is DefaultDetector.
> Below is the head data of the file:
> 99, 102, 101, 114, 98, 114, 97, 99, 104, 101, 46, 48, 48, 54, 55, 54, 50, 55,
> 57, 45, 53, 54, 54, 55, 50, 52, 47, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 48, 48, 48, 48, 55, 48, 48, 0, 48, 48, 48, 48, 48, 48,
> 48, 0, 48, 48, 48, 48, 48, 48, 48, 0, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
> 48, 0, 49, 49, 55, 55, 55, 49, 49, 52, 50, 48, 53, 0, 48, 49, 51, 51, 51, 49,
> 0, 32, 53, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 117, 115, 116, 97, 114, 32, 32, 0, 114, 111, 111, 116, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 114, 111, 111,
> 116, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,...
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