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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4284) Support for user configurable global filters on HttpServer
Date Fri, 26 Sep 2008 20:53:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635014#action_12635014
] 

Doug Cutting commented on HADOOP-4284:
--------------------------------------

> The component for this issue should not be "dfs".

The feature requested (intercept HSFTP requests) is a dfs-related feature.  The implementation
is more generic, but I wonder if that's best.

The problem with generic URL filters like this is that they can be difficult to maintain.
 HSFTP URLs are probably stable, since HSFTP is designed to support cross-version access.
 But other SSL-based services may consider their urls internal, and if folks used this mechanism
to filter them then their filters will break when the urls change.  I'd prefer that this patch
only added extensible filters for HSFTP rather than for all https urls.

> Support for user configurable global filters on HttpServer
> ----------------------------------------------------------
>
>                 Key: HADOOP-4284
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4284
>             Project: Hadoop Core
>          Issue Type: New Feature
>            Reporter: Kan Zhang
>         Attachments: 4284_20080925_78.patch, 4284_20080926_79.patch
>
>
> HADOOP-3854 introduced a framework for adding filters to filter browser facing urls.
Sometimes, there is a need to filter all urls. For example, at Yahoo, we need to open an SSL
port on the HttpServer and only accept hsftp requests from clients who can authenticate themselves
using client certificate and is authorized according to certain policy file. For this to happen,
we need a method to add a user configurable "global" filter, which filters on all client requests.
For our purposes, such a global filter will block all https requests except those accessing
the hsftp interface (it will let all http requests go through, so accesses through the normal
http ports are unaffected). Moreover, those hsftp requests will be subject to further authorization
checking according to the policy file.

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