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https://issues.apache.org/jira/browse/SOLR-6625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493839#comment-14493839
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Ishan Chattopadhyaya commented on SOLR-6625:
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If I'm not missing something, I think we don't need to create our own callback
framework in Solr and instead leverage the HttpRequestInterceptor /
HttpResponseInterceptor. Please excuse my ignorance if this has been discussed
above and I've missed it.
bq. The reason I didn't take that approach is that in some cases there's not
enough context to figure out what you need to do.
The SolrRequest / SolrQueryRequest object (and whatever else we want) can be
passed into the interceptor's context. And hence, any authentication info that
needs to be propagated from original request to sub-requests (internode
requests) can be part of the interceptor. Please see the attached patch
(SOLR-6625_interceptor.patch). It contains a test method in the
MiniSolrClusterTest which uses an request interceptor to capture the
SolrRequest object.
> HttpClient callback in HttpSolrServer
> -------------------------------------
>
> Key: SOLR-6625
> URL: https://issues.apache.org/jira/browse/SOLR-6625
> Project: Solr
> Issue Type: Improvement
> Components: SolrJ
> Reporter: Gregory Chanan
> Assignee: Gregory Chanan
> Priority: Minor
> Attachments: SOLR-6625.patch, SOLR-6625.patch, SOLR-6625.patch,
> SOLR-6625.patch, SOLR-6625.patch, SOLR-6625.patch, SOLR-6625_r1654079.patch,
> SOLR-6625_r1654079.patch
>
>
> Some of our setups use Solr in a SPNego/kerberos setup (we've done this by
> adding our own filters to the web.xml). We have an issue in that SPNego
> requires a negotiation step, but some HttpSolrServer requests are not
> repeatable, notably the PUT/POST requests. So, what happens is,
> HttpSolrServer sends the requests, the server responds with a negotiation
> request, and the request fails because the request is not repeatable. We've
> modified our code to send a repeatable request beforehand in these cases.
> It would be nicer if HttpSolrServer provided a pre/post callback when it was
> making an httpclient request. This would allow administrators to make
> changes to the request for authentication purposes, and would allow users to
> make per-request changes to the httpclient calls (i.e. modify httpclient
> requestconfig to modify the timeout on a per-request basis).
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