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From "Kan Zhang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4284) Support for user configurable global filters on HttpServer
Date Fri, 26 Sep 2008 21:21:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635027#action_12635027
] 

Kan Zhang commented on HADOOP-4284:
-----------------------------------

Doug, I'm not quite sure what you meant by "extensible" filters for HSFTP. If you meant the
new addGlobalFilter interface should only add user filters to HSFTP urls, but not to all urls,
then it won't serve our purpose, since our security policy requires that we block all other
https url requests, and only allow certain HSFTP requests. That means all urls has to be filtered
(and blocked if needed), not just HSFTP urls. A client can potentially access via https all
files and servlets it can access via http.

> 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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