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https://issues.apache.org/jira/browse/SOLR-3895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated SOLR-3895:
--------------------------------

    Attachment: SOLR-3895.patch

Patch. This approach adds a generic EntityResolver for SAX and StaX parsers 
that can be used also outside XMLUpdateReqHandler, e.g. in DIH. It resolves all 
external entities to an empty InputStream. By this XMLUpdater ignores external 
entities like DTDs or entity declarations (&foobar;) and ignores them.

The downside by this is, that XML documents that actually make use of these 
features to include some external stuff would silently ignore those &foobar; 
entities.
                
> For several reasons, disabling the resolving of external entities within the 
> Solr UpdateRequestHandler for XML would be good.
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-3895
>                 URL: https://issues.apache.org/jira/browse/SOLR-3895
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Martin Herfurt
>            Assignee: Uwe Schindler
>            Priority: Minor
>         Attachments: SOLR-3895.patch
>
>
> The Solr UpdateRequestHandler for XML currently resolves so-called XML 
> External Entities. Not resolving XML External Entities would - among other 
> things - improve Solr's update performance.

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