GitHub user cstamas opened a pull request:
https://github.com/apache/tika/pull/4
Make Tika recognize empty and spanning ZIP files too
As it turns out, magic differs for non-empty, empty and
spanning ZIP files. Tika recognizes only the non-empty ZIP files.
Magic for empty ZIP file is validated with hexdump:
https://gist.github.com/cstamas/6e90ae73f83c8e4a3f42
Also described on Wikipedia
http://en.wikipedia.org/wiki/Zip_(file_format)
(see sidebar with Magic Numbers)
Am completely unsure about MIME types `application/vnd.zip.empty` and
`application/vnd.zip.spanning`, so please correct those to appropriate values.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cstamas/tika zip-magic
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tika/pull/4.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4
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commit fee430c1c8dac267ed54ba4ec51777f32fac4981
Author: Tamas Cservenak <ta...@cservenak.net>
Date: 2014-02-21T14:18:10Z
Added two more magic entries for ZIP files.
As it turns out, magic differs for non-empty, empty and
spanning ZIP files.
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