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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">Had to really turn on the Way Back machine on this one...</p> <p style="margin: 10px 0 0 0">I initially thought we could just switch this to use the global parser pool from the global config. But turns out that there is an important delta between our "standard" pool config and the internal one here, which I "enjoyed" relearning from over a decade ago.</p> <p style="margin: 10px 0 0 0">The <tt>Decrypter</tt> internal one sets the JAXP feature <tt><a href="http://apache.org/xml/features/dom/defer-node-expansion" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">http://apache.org/xml/features/dom/defer-node-expansion</a></tt> to false. Ordinarily it defaults to true. Xerces docs are here:</p> <p style="margin: 10px 0 0 0"><a href="https://xerces.apache.org/xerces-j/features.html#defer-node-expansion" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://xerces.apache.org/xerces-j/features.html#defer-node-expansion</a></p> <p style="margin: 10px 0 0 0">(Despite what it says there, it does seem to matter even though we don't change <tt><a href="http://apache.org/xml/properties/dom/document-class-name" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">http://apache.org/xml/properties/dom/document-class-name</a></tt> from the defaults. Maybe the docs are just misworded).</p> <p style="margin: 10px 0 0 0">I do vaguely remember this but not the details. This feature has been set like this in the decrypter's <tt>ParserPool</tt> instance since the initial commit of this code in Dec 2006.</p> <p style="margin: 10px 0 0 0">I thought/hoped that maybe whatever the parser issue was had gone away with the JRE's new internal JAXP parser, but if I remove that feature, one of the unit tests fails in my Eclipse environment:</p> <p style="margin: 10px 0 0 0">org.opensaml.xmlsec.encryption.support.DecryptionSignedContentTest#testDecryptAndVerifySignedElement()</p> <p style="margin: 10px 0 0 0">Tested it under both Java 7 and 8.</p> <p style="margin: 10px 0 0 0">So, I don't know if we can get easily rid of that at the moment. What we had been doing is just keeping the security-related changes synced up here.</p> <p style="margin: 10px 0 0 0">The alternative would be to add this feature to the global <tt>ParserPool</tt>, but that seems like a very big and invasive change to make to the whole OpenSAML and IdP environment. It's possible it might have a negative impact on memory usage. Certainly will affect how we process all XML.</p> </td>
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