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https://issues.apache.org/jira/browse/HDFS-12693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16216991#comment-16216991
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Elek, Marton commented on HDFS-12693:
-------------------------------------
yes, it could be useful when a cluster management tool (like ambari or cloudera
manager) would like to include the webui as an iframe. I am not so familiar
with the management tools, so don't know if they use iframe now, but with the
configuration it is possible to set "X-Frame-Options: ALLOW-FROM
https://management.internal/";
> Ozone: Enable XFrame options for KSM/SCM web ui
> -----------------------------------------------
>
> Key: HDFS-12693
> URL: https://issues.apache.org/jira/browse/HDFS-12693
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Elek, Marton
> Assignee: Elek, Marton
> Attachments: HDFS-12693-HDFS-7240.001.patch
>
>
> According to the discussion about security checklist on dev list I started to
> check the security features of the existing HttpServer2 and found that by
> default the XFrame option headers are disabled. This patch enables it by
> default for SCM/KSM server similar to the Namenode/Datanode webui.
> (Note: Even if the only form on the SCM/KSM ui-s is the standard LogLevel
> form, I think it's a good practice to enable it by default.)
> Test:
> Without the patch (clean build, SCM ui):
> {code}
> curl -v localhost:9876/jmx -o /dev/null
>
> * TCP_NODELAY set
> * Connected to localhost (::1) port 9876 (#0)
> > GET /jmx HTTP/1.1
> > Host: localhost:9876
> > User-Agent: curl/7.55.1
> > Accept: */*
> >
> < HTTP/1.1 200 OK
> < Date: Sat, 21 Oct 2017 19:54:43 GMT
> < Cache-Control: no-cache
> < Expires: Sat, 21 Oct 2017 19:54:43 GMT
> < Date: Sat, 21 Oct 2017 19:54:43 GMT
> < Pragma: no-cache
> < Content-Type: application/json; charset=utf8
> < Access-Control-Allow-Methods: GET
> < Access-Control-Allow-Origin: *
> < Transfer-Encoding: chunked
> {code}
> With the patch:
> {code}
> curl -v localhost:9876/jmx -o /dev/null
>
> * Connected to localhost (::1) port 9876 (#0)
> > GET /jmx HTTP/1.1
> > Host: localhost:9876
> > User-Agent: curl/7.55.1
> > Accept: */*
> >
> < HTTP/1.1 200 OK
> < Date: Sat, 21 Oct 2017 19:55:07 GMT
> < Cache-Control: no-cache
> < Expires: Sat, 21 Oct 2017 19:55:07 GMT
> < Date: Sat, 21 Oct 2017 19:55:07 GMT
> < Pragma: no-cache
> < Content-Type: application/json; charset=utf8
> < X-FRAME-OPTIONS: SAMEORIGIN
> < Access-Control-Allow-Methods: GET
> < Access-Control-Allow-Origin: *
> < Transfer-Encoding: chunked
> {code}
> Note: X-FRAME-OPTIONS header exists at the second case.
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