On 2014-09-22 13:01, Kingsley Idehen wrote:
On 9/22/14 4:06 AM, Frans Knibbe | Geodan wrote:
Hello,
I think I could use some help with enabling WebID as an
authentication and security mechanism for VOS...
I have found several online documents about the subject, like
http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtSPARQLSecurityWebID.
One thing I notice right away is that I am missing a tab /Linked Data
-> Access Controls/ in the Conductor, when logged in as dba. Do I
need to install any extra VAD packages to work with WebID?
The second step in the process seems to be to create a X.509
certificate. So I noticed the existence of a Certificate Generator
hosted by Openlink: http://id.myopenlink.net/certgen/. As in all good
research situations, I started experimenting on myself, so I I have a
URI that resolves to some data about me:
http://lod.geodan.nl/org/frans_knibbe. I /think/ that should be a
good WebID URI (by the way, the profile data are stored in Virtuoso).
But when I enter this URI as a FOAF profile document URL it gets
rejected with an error "Could not retrieve data from URL". Should try
to get a certificate some other way? Or could there be something
wrong with my WebID URI?
Regards,
Frans
Frans,
See:
http://linkeddata.uriburner.com:8000/vapour?uri=http%3A%2F%2Flod.geodan.nl%2Forg%2Ffrans_knibbe&validateRDF=1&defaultResponse=dontmind&userAgent=http%3A%2F%2Flinkeddata.uriburner.com%3A8000%2Fvapour%23this
<http://lod.geodan.nl/org/frans_knibbe> identifies a document. In that
document there are no relations that associates the URI that
identifies you with the URI that identifies the profile document, as
shown by the vapor report page identified by the URI above.
You should add one of the following relations to the document to
rectify this problem: foaf:primaryTopic, wdrs:isdescribedby,
dcterms:subject .
Hello Kingsley,
Thank you. It appears I don't fully understand the way WebID works :-).
From what I gathered, the WebID URI should resolve to data about a
person (an agent). These data could be referenced in a profile, but is
it really necessary for such a profile to exist?
I have now made a profile with URI
http://lod.geodan.nl/org/profile_frans_knibbe. The profile data are
linked to data about me via foaf:primaryTopic. So now I have
1) A foaf:PersonalProfileDocument identified by
http://lod.geodan.nl/org/profile_frans_knibbe. I think this is the
/WebID Profile URI/, in terms of this WebID specification
<https://dvcs.w3.org/hg/WebID/raw-file/tip/spec/identity-respec.html>;
2) A foaf:Person identified by http://lod.geodan.nl/org/frans_knibbe. I
suppose this is the /WebID URI/...
I could now use http://lod.geodan.nl/org/frans_knibbe (i.e. the WebID
URI, not the WebID profile URI) to generate a certificate on
http://id.myopenlink.net/certgen/. But I don't understand how it works.
I have changed no data in http://lod.geodan.nl/org/frans_knibbe, and
those data do not contain a reference to my profile. How did certificate
generator know that a profile was published?
Anyway, I now have a certificate, so I can continue.
Greetings,
Frans
--
Regards,
Kingsley Idehen
Founder & CEO
OpenLink Software
Company Web:http://www.openlinksw.com
Personal Weblog 1:http://kidehen.blogspot.com
Personal Weblog 2:http://www.openlinksw.com/blog/~kidehen
Twitter Profile:https://twitter.com/kidehen
Google+ Profile:https://plus.google.com/+KingsleyIdehen/about
LinkedIn Profile:http://www.linkedin.com/in/kidehen
Personal WebID:http://kingsley.idehen.net/dataspace/person/kidehen#this
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Frans Knibbe
Geodan
President Kennedylaan 1
1079 MB Amsterdam (NL)
T +31 (0)20 - 5711 347
E frans.kni...@geodan.nl
www.geodan.nl <http://www.geodan.nl> | disclaimer
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