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https://issues.apache.org/jira/browse/XERCESJ-1537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Radu Coravu updated XERCESJ-1537:
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Attachment: uri-problem.zip
The samples necessary to reproduce the problem.
> Problem with unparsed entity location when indirect referenced in the DTDs
> --------------------------------------------------------------------------
>
> Key: XERCESJ-1537
> URL: https://issues.apache.org/jira/browse/XERCESJ-1537
> Project: Xerces2-J
> Issue Type: Bug
> Components: DTD
> Affects Versions: 2.9.1
> Environment: All
> Reporter: Radu Coravu
> Attachments: uri-problem.zip
>
> Original Estimate: 4h
> Remaining Estimate: 4h
>
> We have an XML file with the content:
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE doc SYSTEM "../dtd/entityProblem.dtd">
> <doc>
> <fig image="test"/>
> </doc>
> The main DTD "entityProblem.dtd" (located in the right folder) has the
> following content:
> <!ELEMENT doc ( fig )>
> <!ELEMENT fig EMPTY>
> <!ATTLIST fig image ENTITY #REQUIRED>
> <!ENTITY % entityProblem SYSTEM "../source/entityProblem.ent">
> %entityProblem;
> and the included DTD "entityProblem.ent" which is included in a relative
> folder has the content:
> <?xml version="1.0" encoding="UTF-8"?>
> <!NOTATION gif SYSTEM "gif">
> <!ENTITY % test '<!ENTITY test SYSTEM "images/crane.gif" NDATA gif>'>
> %test;
> If we transform the XML with an XSLT processor which uses Xerces for parsing
> (like Saxon) with the content like:
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> version="1.0">
> <xsl:template match="/">
> <xsl:text>
> </xsl:text>
> <xsl:value-of select="unparsed-entity-uri(/doc/fig/@image)"/>
> <xsl:text>
> </xsl:text>
> </xsl:template>
> </xsl:stylesheet>
> Then the unparsed entity location will be resolved relative to the current
> file directory (new File(".")) instead of resolving it relative to the DTD
> where it was declared.
> A possible solution is to make modifications in the
> org.apache.xerces.impl.XMLEntityManager on the
> "org.apache.xerces.impl.XMLEntityManager.startEntity(String, boolean)" method
> and in the case of InternalEntity, instead of creating for it an
> XMLInputSource like:
> xmlInputSource = new XMLInputSource(null, null, null, reader, null);
> you could set a system ID to the input source like:
> xmlInputSource = new XMLInputSource(null, fCurrentEntity != null ?
> fCurrentEntity.getExpandedSystemId() : null, null, reader, null);
> We implemented this solution in Oxygen XML Editor as a patch but there are
> still problems, with this solution in place the image system ID is expanded
> relative to "entityProblem.dtd" and not relative to "entityProblem.ent".
> Using MSXML.NET the image location is correctly solved relative to
> "entityProblem.ent"
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