[
https://issues.apache.org/jira/browse/TIKA-3666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17525134#comment-17525134
]
Tim Allison commented on TIKA-3666:
-----------------------------------
I made this change locally and ran it against our msoffice files in our
regression set. I didn't see any new exceptions:
https://corpora.tika.apache.org/base/reports/reports-20220419-msoffice.tgz
I think we should do this as a last resort if there's an EncryptedPackage that
we haven't yet identified, and if we haven't already identified the OLE2 type.
> Detect and indicate file encrypted with Rights Management Service RMS/IRM
> -------------------------------------------------------------------------
>
> Key: TIKA-3666
> URL: https://issues.apache.org/jira/browse/TIKA-3666
> Project: Tika
> Issue Type: Improvement
> Components: metadata
> Reporter: August Valera
> Priority: Major
> Attachments: poifsviewer.txt, sam-poifsviewer.txt
>
>
> Rights Management Service (RMS), implemented in MS Office as Information
> Rights Management (IRM), allows organizations to set file permissions that
> are stored within the file. In most cases, this will result in the file
> getting a new extension (with a prefix p, such as {{.txt}} becoming
> {{{}.ptxt{}}}), but in the case of MS Office and PDF files, which support
> this natively, the implementation results in the file contents being
> encrypted without any extension change.
> h4. Current behavior
> Running such files through Tika produces results as if it was an empty file
> ran through {{DefaultParser}} and {{{}OfficeParser{}}}.
> h4. Expected behavior
> Extract more metadata about necessary permissions to view (if possible), and
> throwing {{EncryptedDocumentException}} as is the case with Office files
> encrypted in the more traditional manner.
> Reference:
> [https://docs.microsoft.com/en-us/azure/information-protection/rms-client/clientv2-admin-guide-file-types#supported-file-types-for-classification-and-protection]
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
