[xmlsec] XPointer reference problem

[Aleksey Sanin]

Please, read section 3.2 from the FAQ http://www.aleksey.com/xmlsec/faq.html

Aleksey


Asbjørn Oskal wrote:

> Hi!
>  
> I'm having some trouble signing using an xpointer reference.
>  
> The XML document I'm trying to sign looks like this:
>  
> <?xml version="1.0" encoding="UTF-8"?>
> <Letter>
>     Hello, World!   
>     <Info Id="SomeData">
>     <!-- Commentary -->
>     <Data1> Some data </Data1>
>     <Data2> More data </Data2>
>     </Info>
> </Letter>
>  
> I do like this in my code. (from signing example 3):
>  
> referenceNode = xmlSecSignedInfoAddReference(signedInfoNode,
>      (const unsigned char *) "my-reference",
>      (const unsigned char *) "#xpointer(id('SomeData'))",
>                     NULL);
>  
>  
> I debugged the signing process and it ends up in 
> xmlSecTransformStateParseUri (transforms.c) where
>  
> xmlXPtrEval(BAD_CAST (xptr + 1), ctxt);
>  
> fails.
>  
> The xptr contains #xpointer(id('SomeData')).
>  
>  
> Does this mean that the xmlXPtrEval cannot find the element <Info 
> Id="SomeData"> ?
>  
> Has anyone got a clue to what I am doing wrong here?
>  
> :)