Re: [xacml-users] xpath access control

[Argyn <jawabean@gmail.com>]

On 11/30/06, Wolfgang Schreiner <wolfgang.schreiner@ec3.at> wrote:
> Hi all,
>
> Following problem: I would like to control access to a set of XML
> documents via XPath 2.0 queries. XML fragements, which are allowed to
> being accessed are specified by XPath 2.0 statements as well. What I
> need is a method to determine whether 2 XPath statements are
> semantically equal or similar

i'm not sure what you mean by that. wouldn't a simple regexp match
work in this case?

>, before executing the query and having to
> post-filter the result. What is the best way to achieve this? Does the
> XACML xpath-node-match function solve this problem?

it only checks if the resulting nodes are the same, imho. it may not
be what you are looking for

> Is there an
> implementation to it? I think the Sun implementation does not include
> XPath functions?

sun and other implementations have xpath functionality as of xacml 2.0

argyn