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Date: Tue, 6 Nov 2007 16:09:50 -0800 (PST)
From: "Paul Benedict (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Subject: [jira] Commented: (VALIDATOR-248) Add an option to allow
 'localhost' as a valid hostname part in the URL
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    [ https://issues.apache.org/jira/browse/VALIDATOR-248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12540632 ] 

Paul Benedict commented on VALIDATOR-248:
-----------------------------------------

What complicates the validation, as Ben pointed out, is the scheme. If this validation was purely HTTP/FTP, then it would be easier to implement my above suggestion :-( Thus for this ticket, supporting Ben's #1 is enough and I do not oppose it. That was the main point of this thread anyhow.

> Add an option to allow 'localhost' as a valid hostname part in the URL
> ----------------------------------------------------------------------
>
>                 Key: VALIDATOR-248
>                 URL: https://issues.apache.org/jira/browse/VALIDATOR-248
>             Project: Commons Validator
>          Issue Type: Improvement
>          Components: Routines
>    Affects Versions: 1.3.1 Release
>            Reporter: Sergey Nebolsin
>            Assignee: Ben Speakmon
>             Fix For: 1.4
>
>         Attachments: commons-validator-allow-localhost-r592416.patch, commons-validator-allow-non-iana-tlds-r592416.patch
>
>
> Working on Grails we've discovered (http://jira.codehaus.org/browse/GRAILS-1692) that commons-validator's UrlValidator rejects URLs like "http://localhost:8080/tau_gwi_00/clif/cb/19". I looked at commons-validator sources and found that any URL which contains 'localhost' as it's hostname part will be rejected.
> RFC-2396 (http://www.ietf.org/rfc/rfc2396.txt) accepts 'localhost' as a valid hostname (appendix G.3 paragraph 2 says that explicitly).
> So, it would be good to have additional option (UrlValidator.ALLOW_LOCALHOST) which will control UrlValidator behavior on localhost URLs.

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