Re: A WebID Implementation

On 19 May 2014 00:18, Melvin Carvalho <melvincarvalho@gmail.com> wrote:

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> On 19 May 2014 00:10, Andrei Sambra <andrei.sambra@gmail.com> wrote:
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>> Hi Jeff,
>>
>> Congratulations on your implementation! I just logged in with several
>> WebIDs and I can say that the whole logout/login experience is pretty
>> slick. Using different subdomains for authentication was a clever way of
>> avoiding certificate caching.
>>
>> My only suggestion at this point would be to try and personalize a bit
>> the user experience, after login. Say..displaying the user's name or
>> picture instead of linking to "Your profile".
>>
>> Keep up the good work!
>>
>
> Really nice work!
>
> Just to say here's some code that will do what Andrei suggests using
> rdflib.js
>
> <script src="rdflib.js"></script>
>
>         // CORS proxy
>         var PROXY = "https://rww.io/proxy?uri={uri}";
>
>         // fetch user data
>         var g = $rdf.graph();
>         var f = $rdf.fetcher(g);
>         // add CORS proxy
>         $rdf.Fetcher.crossSiteProxyTemplate=PROXY;
>
>         // fetch user data
>         f.nowOrWhenFetched(webid,undefined,function(ok, body){
>           var FOAF = $rdf.Namespace("http://xmlns.com/foaf/0.1/");
>

Oops you'll also need the RDF namespace:

       var RDF = $rdf.Namespace("http://www.w3.org/1999/02/22-rdf-syntax-ns#
");



>
>           var person = g.statementsMatching(undefined, RDF('type'),
> FOAF('Person'))[0];
>
>           var subject = person.subject;
>
>           var name = g.any(subject, FOAF('name'));
>
>           if (name) {
>             console.log(name.value);
>
> *            // do something*
>           }
>
>         });
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>
>
>>
>> -- Andrei
>>
>>
>> On Sun, May 18, 2014 at 1:20 PM, Jeff Fuller <jeff@fictionverse.net>wrote:
>>
>>> Hello, everyone. My name is Jeff Fuller, and I want to share with you my
>>> implementation of WebID that I developed for my website, FictionVerse.net <
>>> https://fictionverse.net> . I haven't been involved with this mailing
>>> list, and I don't mean to introduce myself by advertising, but I've been
>>> eager to share my work. Part of the stated purpose of the WebID Community
>>> Group is to "grow the community of implementations", so I hope this will be
>>> deemed appropriate.
>>>
>>> You can read about the details of the implementation in a blog post I
>>> made, <https://blog.fictionverse.net/technology/the-fictionverse-webid-
>>> implementation/> .. It's a long post with some example code towards the
>>> end. The tl;dr version is that it uses a wildcard SSL certificate for WebID
>>> authentication and persists sessions via cookies along with a little
>>> trickery to emulate some useful features. It's ugly and perhaps not totally
>>> innovative, but it does mask some of the issues commonly faced when using
>>> WebID.
>>>
>>>  * It allows you to log in, log out, and change users at any time, as
>>> often as needed, without restarting the browser.
>>>  * JavaScript can be used to detect a successful or failed login,
>>> initiate a logout, and gain access to the authenticated WebID, in real-time.
>>>  * Sessions are relatively easy to handle since they rely on cookies, a
>>> mature and well-understood feature present in all browsers.
>>>
>>> That said, it's not a replacement for true identity management in the
>>> browser and better API's for dealing with user authentication. As I mention
>>> in the blog post, it's just a polyfill. It seems to be working well enough
>>> so far though.
>>>
>>> I hope you find this to be informational, and I apologize if my
>>> introduction here is bad form. I'm not subscribed to the list because I
>>> don't feel like I can meaningfully contribute, but I do like to read
>>> through the archives. I very much admire the work that all of you are
>>> doing, and no matter what the future of WebID is, know that I'm at least
>>> one more soul in the world who believes in it.
>>>
>>> Sincerely,
>>> Jeff Fuller
>>> <https://fictionverse.net/webid/jeff#id>
>>>
>>>
>>>
>>>
>>
>