W3C home > Mailing lists > Public > public-rww@w3.org > July 2014

Re: LDP Interop via CIMBA and Virtuoso

From: Melvin Carvalho <melvincarvalho@gmail.com>
Date: Tue, 22 Jul 2014 17:23:31 +0200
Message-ID: <CAKaEYhLpWLyVu1r=70DXXjCtW2gTA=gNXA92R+nxU7t3tFOZWQ@mail.gmail.com>
To: Kingsley Idehen <kidehen@openlinksw.com>
Cc: "public-rww@w3.org" <public-rww@w3.org>, "public-ldp-wg@w3.org" <public-ldp-wg@w3.org>, "public-webid@w3.org" <public-webid@w3.org>, Peter Williams <home_pw@msn.com>
On 22 July 2014 15:31, Melvin Carvalho <melvincarvalho@gmail.com> wrote:

>
>
>
> On 21 July 2014 23:15, Kingsley Idehen <kidehen@openlinksw.com> wrote:
>
>>  All,
>>
>> Here's an example of how interoperability enhances our collective quest
>> for a read-write dimension to the Web based on open standards from the W3C
>> such as:
>>
>> 1. URIs  -- for denotation
>> 2. HTTP -- for content lookup and access
>> 3. HTTP URIs -- for denotation and connotation (naming and meaning/sense
>> lookup combined i.e., just like terms in natural language)
>> 3. RDF -- language for subject, predicate, and object based sentence /
>> statement construction (representable using a variety of notations)
>> 4. LDP -- for Read-Write operations via standardized HTTP interaction
>> patterns .
>>
>> Basically, we took CIMBA (and LDP based application developed by Andrei
>> and Sandro Hawke) and deployed it using an instance of Virtuoso (with the
>> ODS-Briefcase module enabled) [1]. Following deployment (which lead to some
>> tweaks of Virtuoso HTTP server's LDP implementation and a fork of CIMBA [2]
>> which exposes our tweaks), we now have a long required LDP based RWW
>> interoperability demo.
>>
>> Links:
>>
>> [1] http://ods-qa.openlinksw.com/DAV/home/kidehen/Public/profile2.ttl#i -- An HTTP URI (aka., WebID) that denotes me
>>
>> [2] http://ods-qa.openlinksw.com/DAV/home/kidehen/Public/profile2.ttl -- A Turtle document that describes me
>>
>> [3] https://ods-qa.openlinksw.com/DAV/home/kidehen/rww-demo/ -- My Dropbox provided folder (collection) mounted to my ODS-Briefcase (which delivers Linked Data Functionality to Dropbox, Google Drive, Microsoft OneDrive, Amazon S3, Box., Rackspace, WebDAV etc.., provided storage).
>>
>> [4] http://linkeddata.uriburner.com/describe/?url=http%3A%2F%2Fwww.w3.org%2Fns%2Fpim%2Fspace%23storage -- alternative view of the description of the <http://www.w3.org/ns/pim/space#storage> relationship property (or predicate)
>>
>> [5] http://bit.ly/1zYifYA -- WebID description via a Linked Data browser (for better reading)
>>
>> [6] http://ods-qa.openlinksw.com/cimba/index.html -- Live CIMBA instance deployed using Virtuoso (with ODS-Briefcase module enabled)
>>
>>
> Great stuff!  Awesome to see two independently developed RWW spaces that
> can interoperate with each other, and decentralized identity.  A world
> first? :)
>
> - It logs me in.  Great!
>
> - It pulls in my feed.  Great!
>
> - It pulls in my friend's feeds.  Great!
>
> Slight issue:
>
> I get the following message, instead of a status box.
>
>   You're almost there! Now you just need to create a channel for your
> posts.
>

One other thing

Logging in to http://cimba.co

I can find 3 profiles for you ( 1 normal, 2 QA) in webizen, but I cannot
find any channels in them.  When I click your name, I get the spinner which
never completes.


>
>
>
>> [7] https://ods-qa.openlinksw.com/DAV/home/kidehen/rww-demo/dropboxhostedblog/ch2/ -- behind the scenes look at the artifacts generated by CIMBA using LDP based RWW oriented HTTP interactions (if you click on the "login" link it will reveal a WebID authentication dialog that supports various authentication protocols e.g., WebID-TLS, TLS, Google+, Microsoft Live, Dropbox, Persona, OpenID  etc..).
>>
>>
>> You can try the CIMBA instance yourself. All that's required are the following:
>>
>> [1] a WebID that resolves to a WebID-Profile document
>>
>> [2] a WebID-Profile document that includes:
>>    -- an RDF based statement that associates your WebID with the Public Key of a locally installed X.509 certificate via an RDF based <http://www.w3.org/ns/auth/cert#key> <http://www.w3.org/ns/auth/cert#key> relation where your WebID denotes the relation subject and your public key the relation object
>>    -- an RDF based statement that represents an <http://www.w3.org/ns/pim/space#storage> <http://www.w3.org/ns/pim/space#storage> relation where your WebID denotes the relation subject and your preferred storage location URI/URL denotes the relation object
>>
>> [3] an X.509 certificate and associated Private key installed to your local keystore/keychain -- this certificate should include have your WebID as the object of the SubjectAlternativeName (SAN) relation (i.e,, the value of the SAN field) which is ultimately used by the WebID-TLS authentication protocol which is basically a TLS handshake enhancement that leverages RDF based Linked Data (i.e., RDF where IRIs take the form of HTTP URIs).
>>
>> <{your-webid}> <http://www.w3.org/ns/pim/space#storage> <http://www.w3.org/ns/pim/space#storage> <{your-ldp-container-url}> .
>>
>> In my case, in regards to this particular showcase, it takes the form:
>> <http://ods-qa.openlinksw.com/DAV/home/kidehen/Public/profile2.ttl#i> <http://ods-qa.openlinksw.com/DAV/home/kidehen/Public/profile2.ttl#i><http://www.w3.org/ns/pim/space#storage> <http://www.w3.org/ns/pim/space#storage> <https://ods-qa.openlinksw.com/DAV/home/kidehen/rww-demo/> <https://ods-qa.openlinksw.com/DAV/home/kidehen/rww-demo/> .
>>
>> Please provide feedback if you encounter any bumps or euphoric successes. The goal here is to demonstrate the powerful interoperability that AWWW enables in regards to the Web's nascent Read-Write dimension. Ideally, this showcase SHOULD be repeatable using any platform that supports:
>>
>> 1. WebID based entity denotation
>> 2. WebID-Profile documents for entity identity claims description
>> 3. WebID-TLS based authentication of identity claims
>> 3. LDP for Read-Write oriented HTTP interactions .
>>
>>
>> --
>> 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
>>
>>
>
Received on Tuesday, 22 July 2014 15:24:05 UTC

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