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https://issues.apache.org/jira/browse/GROOVY-11979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King reassigned GROOVY-11979:
----------------------------------
Assignee: Paul King
> Consolidate XML factory hardening and document secure-by-default parsing
> ------------------------------------------------------------------------
>
> Key: GROOVY-11979
> URL: https://issues.apache.org/jira/browse/GROOVY-11979
> Project: Groovy
> Issue Type: Improvement
> Reporter: Paul King
> Assignee: Paul King
> Priority: Major
>
> h3. PR1 — FactorySupport hardened factories (secure by default)
> *What's included:*
> * {{FactorySupport.java}}: every factory method now returns a hardened
> factory by default
> ** {{createDocumentBuilderFactory()}} — delegates to
> {{createDocumentBuilderFactory(false)}}; previously returned a bare JDK
> factory
> ** {{createSaxParserFactory()}} — delegates to
> {{createSaxParserFactory(false)}}; previously returned a bare JDK factory
> ** {{createDocumentBuilderFactory(boolean allowDocTypeDeclaration)}} *(new)*
> ** {{createSaxParserFactory(boolean allowDocTypeDeclaration)}} *(new)*
> ** {{createXMLInputFactory()}} *(new)*
> ** {{createXMLInputFactory(boolean allowDocTypeDeclaration)}} *(new)*
> ** {{createTransformerFactory(boolean allowDocTypeDeclaration, boolean
> allowExternalResources)}} *(new)*
> ** {{createSchemaFactory(String schemaLanguage)}} *(new)*
> ** {{createXPathFactory()}} *(new)*
> * {{FactorySupport.java}}: added private quiet helpers for the new factory
> types (SchemaFactory, XPathFactory, TransformerFactory {{setAttribute}},
> XMLInputFactory {{setProperty}}).
> * {{FactorySupportTest.java}}: 14 new tests covering hardening defaults on
> both the zero-arg and boolean overloads, relax-flag round-trips for each
> factory type.
> *Hardening recipes applied:*
> || Factory || Settings ||
> | DocumentBuilderFactory | {{FEATURE_SECURE_PROCESSING=true}},
> {{disallow-doctype-decl=!allow}}, {{XIncludeAware=false}},
> {{ExpandEntityReferences=false}} |
> | SAXParserFactory | {{FEATURE_SECURE_PROCESSING=true}},
> {{disallow-doctype-decl=!allow}} |
> | XMLInputFactory | {{SUPPORT_DTD=allow}},
> {{IS_SUPPORTING_EXTERNAL_ENTITIES=false}} |
> | TransformerFactory | {{FEATURE_SECURE_PROCESSING=true}},
> {{disallow-doctype-decl=!allow}}, {{ACCESS_EXTERNAL_DTD}} and
> {{ACCESS_EXTERNAL_STYLESHEET}} = {{"all"}} or {{""}} per
> {{allowExternalResources}} |
> | SchemaFactory | {{FEATURE_SECURE_PROCESSING=true}} (no
> {{ACCESS_EXTERNAL_*}} — preserves legitimate {{<xs:import>}}) |
> | XPathFactory | {{FEATURE_SECURE_PROCESSING=true}} |
> *Compat notes:*
> * Direct callers of the zero-arg {{createDocumentBuilderFactory()}} /
> {{createSaxParserFactory()}} now receive hardened factories. Callers that
> previously parsed DOCTYPE-bearing input through those factories must switch
> to the {{(true)}} overload. Internal Groovy callers ({{XmlParser}},
> {{XmlSlurper}}, {{XmlUtil}}, {{DOMBuilder}}) overlay their own settings on
> top of the default and are unaffected.
> * No public method signatures changed. No methods deprecated.
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