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https://issues.apache.org/jira/browse/HADOOP-14908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16183020#comment-16183020
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ASF GitHub Bot commented on HADOOP-14908:
-----------------------------------------

GitHub user johannes-altiscale opened a pull request:

    https://github.com/apache/hadoop/pull/279

    HADOOP-14908 allow regular expressions, fixes

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/Altiscale/hadoop 
johannes-HADOOP-14908-allow-full-regexp

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/hadoop/pull/279.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #279
    
----
commit 90e3816f606bcccc495efa09cfb0f26c3a6d37ac
Author: Johannes Alberti <johan...@altiscale.com>
Date:   2017-09-27T01:50:10Z

    allow for real regex patterns (and be backward compatible)

commit 6760ffa132446716471084d077511dcce81ca095
Author: Johannes Alberti <johan...@altiscale.com>
Date:   2017-09-27T16:33:24Z

    (HADOOP-14908) white space issues, documentation updates, more tests

----


> CrossOriginFilter should trigger regex on more input
> ----------------------------------------------------
>
>                 Key: HADOOP-14908
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14908
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: common, security
>    Affects Versions: 3.0.0-beta1
>            Reporter: Allen Wittenauer
>            Assignee: Johannes Alberti
>
> Currently,  CrossOriginFilter.java limits regex matching only if there is an 
> asterisk (\*) in the config.
> {code}
> if (allowedOrigin.contains("*")) {
> {code}
> This means that entries such as:
> {code}
> http?://foo.example.com
> https://[a-z][0-9].example.com
> {code}
> ... and other patterns that succinctly limit the input space need to either 
> be fully expanded or dramatically have their space increased by using an 
> asterisk in order to pass through the filter.



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