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https://issues.apache.org/jira/browse/SOLR-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665249#comment-13665249
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Alexey Serba commented on SOLR-4470:
------------------------------------

bq. However, noone have constructively suggested how to make these auth/ssl 
setups work with SolrCloud without changes in Solr.

I think ssl stuff should be working after recent http client upgrade and switch 
to SystemDefaultHttpClient. Now I believe you can set up your key and trust 
stores using standard Java properties and it _should_ work.

Basic auth could be implemented by crafting username and password information 
into shard HTTP urls as suggested by Uwe. It seems http client 
[supports|https://github.com/apache/httpclient/blob/5769675b1534c61c4c815aadccffdc985410cd2d/httpclient/src/main/java/org/apache/http/impl/client/DefaultRequestDirector.java#L453]
 this feature.
                
> 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: 4.4
>
>         Attachments: SOLR-4470_branch_4x_r1452629.patch, 
> SOLR-4470_branch_4x_r1452629.patch, SOLR-4470_branch_4x_r1454444.patch, 
> SOLR-4470.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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