SpringIntegration - disable DTD validation

Question

is there a way to disable DTD validation in an XSLT transformer through XML configuration?

I have a specific response from a client that i don't want to validate (for business reasons)

Can I do this in Spring Integration?

Thanks in advance,

Carl

Answer 1

I found this solution:

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
// stop the network loading of DTD files
factory.setValidating(false);
factory.setNamespaceAware(true);
factory.setFeature("http://xml.org/sax/features/namespaces", false);
factory.setFeature("http://xml.org/sax/features/validation", false);
factory.setFeature("http://apache.org/xml/features/nonvalidating/load-dtd-grammar", false);
factory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);

(see here TransformerFactory - avoiding network lookups to verify DTDs)

Since we know that <int-xml:xslt-transformer>supports source-factory and result-factory, there will be just need to provide your onw implementation for them, e.g. based on exisiting DomSourceFactory and DomResultFactory, respectivally, and inject that code there in the constructor.

Of course you can inject DocumentBuilderFactory to that DomSourceFactory and DomResultFactory, but you should write some custom FactoryBean<DocumentBuilderFactory> to initialize DocumentBuilderFactory in its getObject().