[jira] [Commented] (IO-559) FilenameUtils.normalize should verify hostname syntax in UNC path

["Maria Dima (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IO-559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16465706#comment-16465706 ] 

Maria Dima commented on IO-559:
-------------------------------

Hello, is there any feedback on this issue?
How critical is it considered by Apache community?

> FilenameUtils.normalize should verify hostname syntax in UNC path
> -----------------------------------------------------------------
>
>                 Key: IO-559
>                 URL: https://issues.apache.org/jira/browse/IO-559
>             Project: Commons IO
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 2.6
>            Reporter: Stefan Bodewig
>            Priority: Major
>
> {{FilenameUtils.normalize}} will accept broken file names as UNC path even if their hostname part doesn't match the syntax of a proper hostname. Using certain hostnames like "." this may lead to strange side effects.
> Most likely the best fix will be to make {{getPrefixLength}} verify the hostname part of a suspected UNC path and return a value of {{NOT_FOUND}} if it is not a valid hostname - much like it does for triple slashes.



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