[jira] [Created] (TIKA-1241) Tike does not recognise empty nor spanning ZIP files magic

["Cservenak, Tamas (JIRA)" <ji...@apache.org>]

Cservenak, Tamas created TIKA-1241:
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             Summary: Tike does not recognise empty nor spanning ZIP files magic
                 Key: TIKA-1241
                 URL: https://issues.apache.org/jira/browse/TIKA-1241
             Project: Tika
          Issue Type: Improvement
            Reporter: Cservenak, Tamas
            Priority: Minor


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)

Proposed change:
add two more match entries to ZIP MIME definition:
https://github.com/apache/tika/pull/4



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