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

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

     [ https://issues.apache.org/jira/browse/TIKA-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cservenak, Tamas updated TIKA-1241:
-----------------------------------

    Summary: Tika does not recognise empty nor spanning ZIP files magic  (was: Tike does not recognise empty nor spanning ZIP files magic)

> Tika 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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