Hi Enrico

I see you have
RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:pe
rmit-overrides"

I wonder if that could be the issue?

Steve

> -----Original Message-----
> From: Anello, Enrico (OEKM) [mailto:enrico.ane...@fao.org]
> Sent: 07 June 2011 10:28
> To: Support and info exchange list for Fedora users.
> Subject: Re: [fcrepo-user] XACMLs...
> 
> Hi Steve,
> Thanks a lot for the quick response, I just re-wrote the XACML as you
> suggested (here below), but I'm still having the same issue....
> Basically to test it I log on to the admin console as testUser on
> http://[host]:8080/fedora/admin
> Then I try to search for objects, and it works. Then again I select an
> object and I try to export it (both the entire object and/or a datastream
> inside the object...) and the result is that I can actually export the
> object even if the supposed result would be an AuthZ denial...
> Any further tips would be really appreciated.
> 
> Many thanks and Regards,
> Enrico
> 
> <Policy xmlns="urn:oasis:names:tc:xacml:2.0:policy:schema:os" xmlns:xacml-
> context="urn:oasis:names:tc:xacml:2.0:context:schema:os"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; PolicyId="access-
> admin" RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-
> algorithm:permit-overrides"
> xsi:schemaLocation="urn:oasis:names:tc:xacml:2.0:policy:schema:os
> http://docs.oasis-open.org/xacml/2.0/access_control-xacml-2.0-policy-
> schema-os.xsd       urn:oasis:names:tc:xacml:2.0:context:schema:os
> http://docs.oasis-open.org/xacml/2.0/access_control-xacml-2.0-context-
> schema-os.xsd">
>   <Description>A policy to provide access to the testUser</Description>
>   <Target>
>     <Subjects>
>       <Subject>
>         <SubjectMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";>testUser</AttributeValu
> e>
>           <SubjectAttributeDesignator
> AttributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id"
> DataType="http://www.w3.org/2001/XMLSchema#string";></SubjectAttributeDesig
> nator>
>         </SubjectMatch>
>       </Subject>
>     </Subjects>
> 
>   </Target>
>   <Rule Effect="Deny"
> RuleId="au:edu:mq:melcoe:ramp:fedora:xacml:2.0:rule:generic-permit">
>     <Target>
>       <Actions>
>         <Action>
>           <ActionMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>             <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";>urn:fedora:names:fedora
> :2.1:action:id-export</AttributeValue>
>             <ActionAttributeDesignator
> AttributeId="urn:fedora:names:fedora:2.1:action:id"
> DataType="http://www.w3.org/2001/XMLSchema#string";></ActionAttributeDesign
> ator>
>           </ActionMatch>
>         </Action>
>       </Actions>
>     </Target>
>   </Rule>
> 
>   <Rule Effect="Permit"
> RuleId="au:edu:mq:melcoe:ramp:fedora:xacml:2.0:rule:generic-
> permit2"></Rule>
> </Policy>
> ________________________________________
> From: Steve Bayliss [stephen.bayl...@acuityunlimited.net]
> Sent: Tuesday, June 07, 2011 3:21 PM
> To: 'Support and info exchange list for Fedora users.'
> Subject: Re: [fcrepo-user] XACMLs...
> 
> Hi Enrico
> 
> A couple of things you might want to look at
> - in your Rule you are using AnySubject and AnyResource elements - these
> are XACML 1.0 and are not in XACML 2.0.  To specify "any" just omit the
> Subjects/Resources elements entirely.
> - in the main Target of your policy you seem effectively to be specifying
> every action (read, write, plus all API-A and API-M) - if your intention
> here is to specify all actions then you can omit the Actions element from
> the target.
> 
> Steve
> 
> ________________________________
> From: Enrico Anello (OEKM) [mailto:enrico.ane...@fao.org]
> Sent: 06 June 2011 11:03
> To: fedora-commons-users@lists.sourceforge.net
> Subject: [fcrepo-user] XACMLs...
> 
> Hi all,
> I'm a brand new fedora user and I'm having troubles setting up a basic
> XACML rule using FESL AuthZ (Fedora repo version 3.4.2)
> 
> The rule is very simple, I want to grant a user called "testUser" with r/w
> permissions but, in the meanwhile, I want to deny exporting objects or
> datastreams.
> The XACML I wrote is as follow and saved inside a FESLPOLICY datastream of
> a new created fedora-policy object.
> 
> <Policy xmlns="urn:oasis:names:tc:xacml:2.0:policy:schema:os" xmlns:xacml-
> context="urn:oasis:names:tc:xacml:2.0:context:schema:os"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-
> instance"<http://www.w3.org/2001/XMLSchema-instance> PolicyId="access-
> admin" RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-
> algorithm:permit-overrides"
> xsi:schemaLocation="urn:oasis:names:tc:xacml:2.0:policy:schema:os
> http://docs.oasis-open.org/xacml/2.0/access_control-xacml-2.0-policy-
> schema-os.xsd       urn:oasis:names:tc:xacml:2.0:context:schema:os
> http://docs.oasis-open.org/xacml/2.0/access_control-xacml-2.0-context-
> schema-os.xsd">
>   <Description>A policy to provide access to the testUser</Description>
>   <Target>
>     <Subjects>
>       <Subject>
>         <SubjectMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>>testUser</AttributeValue>
>           <SubjectAttributeDesignator
> AttributeId="urn:oasis:names:tc:xacml:1.0:subject:subject-id"
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>></SubjectAttributeDesignator>
>         </SubjectMatch>
>       </Subject>
>     </Subjects>
>     <Actions>
>       <Action>
>         <ActionMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>>urn:fedora:names:fedora:2.1:action:api-
> a</AttributeValue>
>           <ActionAttributeDesignator
> AttributeId="urn:fedora:names:fedora:2.1:action:api"
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>></ActionAttributeDesignator>
>         </ActionMatch>
>       </Action>
>       <Action>
>         <ActionMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>>urn:fedora:names:fedora:2.1:action:api-
> m</AttributeValue>
>           <ActionAttributeDesignator
> AttributeId="urn:fedora:names:fedora:2.1:action:api"
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>></ActionAttributeDesignator>
>         </ActionMatch>
>       </Action>
>       <Action>
>         <ActionMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>>write</AttributeValue>
>           <ActionAttributeDesignator
> AttributeId="urn:fedora:names:fedora:2.1:action:id"
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>></ActionAttributeDesignator>
>         </ActionMatch>
>       </Action>
>       <Action>
>         <ActionMatch
> MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>>read</AttributeValue>
>           <ActionAttributeDesignator
> AttributeId="urn:fedora:names:fedora:2.1:action:id"
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>></ActionAttributeDesignator>
>         </ActionMatch>
>       </Action>
>     </Actions>
>   </Target>
>   <Rule Effect="Deny" RuleId="1">
>      <Target>
>     <Subjects>
>       <AnySubject/>
>     </Subjects> <Resources><AnyResource/></Resources>
>     <Actions>
>       <Action>
>     <ActionMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-
> equal">
>           <AttributeValue
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>>urn:fedora:names:fedora:2.1:action:id-
> export</AttributeValue>
>           <ActionAttributeDesignator
> AttributeId="urn:fedora:names:fedora:2.1:action:id"
> DataType="http://www.w3.org/2001/XMLSchema#string";<http://www.w3.org/2001/
> XMLSchema#string>></ActionAttributeDesignator>
>         </ActionMatch>
>       </Action>
>     </Actions>
>   </Target>
>   </Rule>
>   <Rule Effect="Permit" RuleId="2"></Rule>
> </Policy>
> 
> This rule is always validated as permitted, so it never validate the deny
> rule as true.... Why?
> 
> Thanks for any help or tips. This is driving me crazy :(
> Enrico
> 
> --------------------------------------------------------------------------
> ----
> EditLive Enterprise is the world's most technically advanced content
> authoring tool. Experience the power of Track Changes, Inline Image
> Editing and ensure content is compliant with Accessibility Checking.
> http://p.sf.net/sfu/ephox-dev2dev
> _______________________________________________
> Fedora-commons-users mailing list
> Fedora-commons-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/fedora-commons-users


------------------------------------------------------------------------------
EditLive Enterprise is the world's most technically advanced content
authoring tool. Experience the power of Track Changes, Inline Image
Editing and ensure content is compliant with Accessibility Checking.
http://p.sf.net/sfu/ephox-dev2dev
_______________________________________________
Fedora-commons-users mailing list
Fedora-commons-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/fedora-commons-users

Reply via email to