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From "Nick Burch (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (TIKA-913) MagicMime detection of msdos executables does not work
Date Thu, 10 May 2012 11:53:57 GMT

     [ https://issues.apache.org/jira/browse/TIKA-913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nick Burch resolved TIKA-913.
-----------------------------

       Resolution: Fixed
    Fix Version/s: 1.2
    
> MagicMime detection of msdos executables does not work
> ------------------------------------------------------
>
>                 Key: TIKA-913
>                 URL: https://issues.apache.org/jira/browse/TIKA-913
>             Project: Tika
>          Issue Type: Bug
>          Components: mime
>    Affects Versions: 1.1
>         Environment: Linux, JDK 1.6
>            Reporter: Torsten Krah
>              Labels: detection, magic, mime
>             Fix For: 1.2
>
>
> Mime detection does not work as expected (at least from me) in contrast e.g. to sourceforge
mime-util detection or "file" utility.
> For example using putty ms-dos executable does result in wrong detections:
> krah@sf050:~$ java -jar /tmp/tika-app-1.1.jar --detect /tmp/putty
> application/octet-stream
> krah@sf050:~$ java -jar /tmp/tika-app-1.1.jar --detect /tmp/putty.jpg
> image/jpeg
> krah@sf050:~$ java -jar /tmp/tika-app-1.1.jar --detect /tmp/putty.exe
> application/x-msdownload
> Its everytime the same binary resource only with different names.
> In contrast using "file" does output:
> krah@sf050:~$ file /tmp/putty
> /tmp/putty: PE32 executable for MS Windows (GUI) Intel 80386 32-bit
> krah@sf050:~$ file /tmp/putty.jpg
> /tmp/putty.jpg: PE32 executable for MS Windows (GUI) Intel 80386 32-bit
> krah@sf050:~$ file /tmp/putty.exe
> /tmp/putty.exe: PE32 executable for MS Windows (GUI) Intel 80386 32-bit
> So magic mime detection should be able to detect that this is actually an executable.
> E.g. for a PDF it does work:
> krah@sf050:~$ java -jar /tmp/tika-app-1.1.jar --detect /tmp/print.pdf
> application/pdf
> krah@sf050:~$ java -jar /tmp/tika-app-1.1.jar --detect /tmp/print
> application/pdf
> krah@sf050:~$ java -jar /tmp/tika-app-1.1.jar --detect /tmp/print.jpg 
> application/pdf
> Here Tika detects what is expected.

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