Torsten Krah created TIKA-913:
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Summary: 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
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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