[jira] [Resolved] (TIKA-3800) Consider wrapping 'unrar' commandline executable as a parser to handle rar v5

["Tim Allison (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TIKA-3800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Allison resolved TIKA-3800.
-------------------------------
    Fix Version/s: 2.4.2
       Resolution: Fixed

> Consider wrapping 'unrar' commandline executable as a parser to handle rar v5
> -----------------------------------------------------------------------------
>
>                 Key: TIKA-3800
>                 URL: https://issues.apache.org/jira/browse/TIKA-3800
>             Project: Tika
>          Issue Type: Task
>            Reporter: Tim Allison
>            Priority: Minor
>             Fix For: 2.4.2
>
>
> Junrar is great and doesn't require any external dependencies.  However, it doesn't handle rar v5.  I've tried {{UNRAR 5.61 beta 1 freeware}} on some of the v5 files that we have in our regression corpus, and I can confirm that Tika is not able to handle them, but unrar is.
> The parser would need to create a temporary directory, copy the inputstream there to a file, run unrar, process the extracted files and then clean up the directory.
> We can get full path information from the {{l}} command: {{unrar l blah.rar}}
> We can tell unrar not to overwrite files with the same name: {{unrar e or bug_trackers/LIBRE_OFFICE/131138-137877/LIBRE_OFFICE-135119-0.rar}}.
> If we trust unrar to protect against path traversal (e.g. an embedded file with the name "../../../something_bad.pdf"), we can use the {{x}} command.



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