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https://issues.apache.org/jira/browse/TIKA-4387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17930491#comment-17930491
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Hudson commented on TIKA-4387:
------------------------------
SUCCESS: Integrated in Jenkins build Tika » tika-branch_3x-jdk11 #1978 (See
[https://ci-builds.apache.org/job/Tika/job/tika-branch_3x-jdk11/1978/])
TIKA-4387 -- FilenameUtils should require that file extensions be ascii
alphanumerics only. (#2143) (tallison:
[https://github.com/apache/tika/commit/aba99e2173b456d113c3d8b4db936d19dbbb3012])
* (edit) tika-core/src/test/java/org/apache/tika/io/FilenameUtilsTest.java
* (edit) tika-core/src/main/java/org/apache/tika/io/FilenameUtils.java
> Improve robustness of file extension parsing
> --------------------------------------------
>
> Key: TIKA-4387
> URL: https://issues.apache.org/jira/browse/TIKA-4387
> Project: Tika
> Issue Type: Task
> Reporter: Tim Allison
> Priority: Major
> Fix For: 4.0.0, 3.1.1, 2.9.4
>
>
> {{FilenameUtils.getSuffixFromPath()}} isn't checking that the extension
> contains only alphanumeric characters.
> If a "file path" derives from an internal path in a pst, like so {{/Début du
> fichier de données Outlook/[WEBINAR] - "Introducing Couchbase Server 2.5"}},
> then the extension is {{.5"}}, which causes problems on Windows.
> The problem happens when TemporaryResources goes to write a temp file and
> tries to maintain the file extension based on the {{resourceName}} in the
> Metadata.
> We should add a check that the extension contains only alphanumerics? Or
> something?
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