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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4171) WebHDFS and HttpFs should accept only valid Unix user names
Date Wed, 14 Nov 2012 17:04:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13497227#comment-13497227
] 

Kihwal Lee commented on HDFS-4171:
----------------------------------

Look at last night's build:
  https://builds.apache.org/view/Hadoop/job/Hadoop-Hdfs-trunk/1226/

All test failures were coming from webhdfs.
I sampled a couple of test cases. If I reverse HDFS-4171, they don't fail.
                
> WebHDFS and HttpFs should accept only valid Unix user names
> -----------------------------------------------------------
>
>                 Key: HDFS-4171
>                 URL: https://issues.apache.org/jira/browse/HDFS-4171
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.2-alpha
>            Reporter: Harsh J
>            Assignee: Alejandro Abdelnur
>             Fix For: 2.0.3-alpha
>
>         Attachments: HDFS-4171.patch
>
>
> HttpFs tries to use UserProfile.USER_PATTERN to match all usernames before a doAs impersonation
function. This regex is too strict for most usernames, as it disallows any special character
at all. We should relax it more or ditch needing to match things there.
> WebHDFS currently has no such limitations.

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