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https://issues.apache.org/jira/browse/SOLR-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13910431#comment-13910431
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Per Steffensen commented on SOLR-4470:
--------------------------------------

bq. No whitespace-only diffs

Good

bq. Javadoc for AuthCredentials class

Nice

bq. CoreAdminRequest#persist() was undeprecated by previous patch, assuming 
that was a typo, re-adding deprecation.

Not by intent from my side, so the re-adding seem correct

bq. In HttpClientUtil#createClient(...) the code in prev patch was ...

Boolean.getBoolean was the intention. And the result will not always be false - 
not if you set the JVM-param to "true". This is done in SecurityDistributedTest 
so that we can oversteer credentials used in inter-solr-node requests from the 
test. Please revert to Boolean.getBoolean.

Ad) CHANGES.txt
{code}
... The feature propagates credentials from outer request to the sub-requests 
...
{code}
I can live with this one, but maybe it should be expressed differently. The 
thing you describe is only true if you use 
UseSuperRequestAuthCredentialsSubRequestFactory - you can make other 
implementations of SubRequestFactory where it is not true. And it is only true 
for "internal requests that is a direct reaction to a request from the 
outside". In case of "internal requests that is not triggered by a request from 
the outside" it can never be true - there are no outer request to propagate 
credentials from. For such requests, if you use 
SystemPropertiesAuthCredentialsInternalRequestFactory, you can control basic 
http credentials through JVM-params, but here you can implement your own 
solution as well. Just wanted to make it clear. If you want to keep what you 
wrote, then ok for me.

> Support for basic http auth in internal solr requests
> -----------------------------------------------------
>
>                 Key: SOLR-4470
>                 URL: https://issues.apache.org/jira/browse/SOLR-4470
>             Project: Solr
>          Issue Type: New Feature
>          Components: clients - java, multicore, replication (java), SolrCloud
>    Affects Versions: 4.0
>            Reporter: Per Steffensen
>            Assignee: Jan Høydahl
>              Labels: authentication, https, solrclient, solrcloud, ssl
>             Fix For: 5.0
>
>         Attachments: SOLR-4470.patch, SOLR-4470.patch, SOLR-4470.patch, 
> SOLR-4470.patch, SOLR-4470.patch, SOLR-4470.patch, 
> SOLR-4470_branch_4x_r1452629.patch, SOLR-4470_branch_4x_r1452629.patch, 
> SOLR-4470_branch_4x_r1454444.patch, SOLR-4470_trunk_r1568857.patch
>
>
> We want to protect any HTTP-resource (url). We want to require credentials no 
> matter what kind of HTTP-request you make to a Solr-node.
> It can faily easy be acheived as described on 
> http://wiki.apache.org/solr/SolrSecurity. This problem is that Solr-nodes 
> also make "internal" request to other Solr-nodes, and for it to work 
> credentials need to be provided here also.
> Ideally we would like to "forward" credentials from a particular request to 
> all the "internal" sub-requests it triggers. E.g. for search and update 
> request.
> But there are also "internal" requests
> * that only indirectly/asynchronously triggered from "outside" requests (e.g. 
> shard creation/deletion/etc based on calls to the "Collection API")
> * that do not in any way have relation to an "outside" "super"-request (e.g. 
> replica synching stuff)
> We would like to aim at a solution where "original" credentials are 
> "forwarded" when a request directly/synchronously trigger a subrequest, and 
> fallback to a configured "internal credentials" for the 
> asynchronous/non-rooted requests.
> In our solution we would aim at only supporting basic http auth, but we would 
> like to make a "framework" around it, so that not to much refactoring is 
> needed if you later want to make support for other kinds of auth (e.g. digest)
> We will work at a solution but create this JIRA issue early in order to get 
> input/comments from the community as early as possible.



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