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https://issues.apache.org/jira/browse/TIKA-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16042465#comment-16042465
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Alessandro Scaldaferro edited comment on TIKA-1997 at 6/8/17 11:10 AM:
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In https://www.ietf.org/rfc/rfc2633.txt I've found the following infos:
   MIME Type                                                File Extension
   Application/pkcs7-mime (signedData,      .p7m
   envelopedData)

   Application/pkcs7-mime (degenerate       .p7c
   signedData "certs-only" message)

   Application/pkcs7-signature                      .p7s

Looks like .p7m files are signed file (the original file + the signature data), 
and .p7s files are "signature files" containing only the signature data but not 
the original file.

Hence, for "signedData" files with .p7m extension the correct mimetype seems to 
be "pkcs7-mime".


was (Author: ascaldaf):
In https://www.ietf.org/rfc/rfc2633.txt I've found the following infos:
   MIME Type                                                File Extension
   Application/pkcs7-mime (signedData,      .p7m
   envelopedData)

   Application/pkcs7-mime (degenerate       .p7c
   signedData "certs-only" message)

   Application/pkcs7-signature                      .p7s

Looks like .p7m files are signed file (the original file + the signature data), 
and .p7s files are "signature files" containing only the signature data but not 
the original file.


> Problem in Tika().detect for xml file signed in CADES
> -----------------------------------------------------
>
>                 Key: TIKA-1997
>                 URL: https://issues.apache.org/jira/browse/TIKA-1997
>             Project: Tika
>          Issue Type: Sub-task
>          Components: detector
>    Affects Versions: 1.13
>         Environment: JDK 1.7
>            Reporter: Michele Andreano
>            Priority: Blocker
>         Attachments: test.xml.p7m
>
>
> When I submit a tika a xml file signed in P7M format, I expect tika return as 
> mimetype application / pkcs7-mime instead gives me application / 
> pkcs7-signature.
> How is it possible?



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