Distributed Social Networking

Distributed Social Networking

Bastian HofmannVZnet Netzwerke Ltd.

VZnet Netzwerke Ltd. -‐ Monday, December 6, 2010


Agenda

• WebFinger• Well-‐Known URIs• Web Host Meta Data• XRD• Portable Contacts• AcLvity Strea.ms• PubSubHubbub• Salmon

• OExchange• XAuth• OEmbed• SWAT0


nikko russano*

http://www.flickr.com/photos/nikko314/

http://www.flickr.com/photos/nikko314/


... you could not send a mail to another provider


... you could not call your friends at another carrier


Back to reality



Meet Bill and Steve


Bill want‘s to know more about Steve

paurian

http://www.flickr.com/photos/paurian/

http://www.flickr.com/photos/paurian/


In the old days: Fingerbhofmann@svz-pcn-107 ~ $ finger bhofmann

Login: bhofmann Name: Bastian HofmannDirectory: /Users/bhofmann Shell: /bin/bashOn since Di 14 Sep 21:45 (CEST) on console, idle 1:36 (messages off)On since Di 14 Sep 23:02 (CEST) on ttys000No Mail.No Plan.


Now: WebFinger

hUp://code.google.com/p/webfinger/

http://code.google.com/p/webfinger/

http://code.google.com/p/webfinger/


hCp://example.com/.well-‐known/host-‐meta

<?xml version='1.0' encoding='UTF-8'?><XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0' xmlns:hm='http://host-meta.net/xrd/1.0'> <hm:Host>example.com</hm:Host> <Link rel='lrdd' template='http://example.com/describe?uri={uri}'> <Title>Resource Descriptor</Title> </Link></XRD>

hUp://tools.ieZ.org/html/dra[-‐no\ngham-‐site-‐metahUp://tools.ieZ.org/html/dra[-‐hammer-‐hostmetahUp://docs.oasis-‐open.org/xri/xrd/v1.0/xrd-‐1.0.html

http://example.com/.well-known/host-meta




http://docs.oasis-open.org/ns/xri/xrd-1.0'


http://host-meta.net/xrd/1.0'

http://host-meta.net/xrd/1.0'

http://livepage.apple.com/


http://docs.oasis-open.org/xri/xrd/v1.0/xrd-1.0.html







hCp://example.com/describe?uri=acct:[email protected]

<?xml version='1.0' encoding='UTF-8'?><XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'> <Subject>acct:[email protected]</Subject> <Alias>http://example.com/profiles/joe</Alias> <Link rel='http://portablecontacts.net/spec/1.0' href='http://example.com/api/people/' /> <Link rel='http://webfinger.net/rel/profile-page' type='text/html' href='http://example.com/profiles/joe' /> <Link rel='describedby' type='text/html' href='http://example.com/profiles/joe' /> <Link rel='http://webfinger.net/rel/avatar' href='http://example.com/profiles/joe/photo' /></XRD>

http://example.com/describe?uri=uri






mailto:[email protected]


http://example.com/profiles/joe

http://example.com/profiles/joe

http://portablecontacts.net/spec/1.0'

http://portablecontacts.net/spec/1.0'

http://example.com/api/people/'

http://example.com/api/people/'

http://webfinger.net/rel/profile-page'

http://webfinger.net/rel/profile-page'

http://example.com/profiles/joe'




http://webfinger.net/rel/avatar'

http://webfinger.net/rel/avatar'

http://example.com/profiles/joe/photo'

http://example.com/profiles/joe/photo'


Portable Contacts

{ "id" : "example.org:34KJDCSKJN2HHF0DW20394", "displayName" : "Janey", "name" : {"unstructured" : "Jane Doe"}, "gender" : "female"}

• standardized access to user data and their relaLons (Social Graph)• simple to use

hUp://portablecontacts.net/

http://portablecontacts.net

http://portablecontacts.net


DEMO


He want‘s to follow Steve‘s status updates


AcQvityStrea.ms

• Standard for a stream of acLviLes (Feed)

• Atom based

hUp://acLvitystrea.ms/

http://activitystrea.ms

http://activitystrea.ms


PubSubHubbubretrieves Atom feed with Hub URL

Hub

posts sthpings everysubscriber

subscribes for feed

ackssubscripLon

hUp://code.google.com/p/pubsubhubbub/

http://code.google.com/p/pubsubhubbub/

http://code.google.com/p/pubsubhubbub/


DEMO


Now Bill menQons Steve to his pal

have a look at @steve stream


and what about Comments?

new macs will have IE9

I would‘ve chosenChrome


Salmon

hUp://www.salmon-‐protocol.org/

http://www.salmon-protocol.org



Salmon





Salmon





DEMO


Bill is now on his favourite Video Portal


He want‘s to share a video with his friends

... but his favourite social network has no sharing buUon at YouTube


Nascar Problem


XAuth

hUp://xauth.org/

http://xauth.org

http://xauth.org


XAuth at Provider

• 100% Client Technology

XAuth.extend({ token: "1", expire: new Date().getTime() + 60*60*24*1000, extend: ["*"], });

Login xauth.org/xauth.js


XAuth at Consumer

Visits xauth.org/xauth.js

XAuth.retrieve({ retrieve: ['xauth.org'], callback: receiveTokens });

•But static server on central domain needed


OExchange• Common API for publishing sth. into social networks

http://www.example.com/share.php?url={URI}&title={title for the content}&description={short description of the content}&ctype=flash&swfurl={SWF URI}&height={preferred SWF height}&width={preferred swf width}&screenshot={screenshot URI}

hUp://www.oexchange.org/





http://www.oexchange.org

http://www.oexchange.org


Discovery over XRD<?xml version='1.0' encoding='UTF-8'?><XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0"> <Subject>http://www.example.com/linkeater</Subject> <Property type="http://www.oexchange.org/spec/0.8/prop/vendor"> Examples Inc.</Property> <Property type="http://www.oexchange.org/spec/0.8/prop/title"> A Link-Accepting Service</Property> <Link rel= "icon" href="http://www.example.com/favicon.ico" type="image/vnd.microsoft.icon" /> <Link rel= "http://www.oexchange.org/spec/0.8/rel/offer" href="http://www.example.com/linkeater/offer.php" type="text/html" /></XRD>

http://docs.oasis-open.org/ns/xri/xrd-1.0

http://docs.oasis-open.org/ns/xri/xrd-1.0

http://www.example.com/linkeater

http://www.example.com/linkeater

http://www.oexchange.org/spec/0.8/prop/vendor

http://www.oexchange.org/spec/0.8/prop/vendor

http://www.oexchange.org/spec/0.8/prop/title

http://www.oexchange.org/spec/0.8/prop/title

http://www.example.com/favicon.ico

http://www.example.com/favicon.ico

http://www.oexchange.org/spec/0.8/rel/offer

http://www.oexchange.org/spec/0.8/rel/offer

http://www.example.com/linkeater/offer.php

http://www.example.com/linkeater/offer.php


DEMO


Now there is a link in his status update

cool video:hUp://www.youtube.com/watch?v=OFzkTxiwziQ

http://www.youtube.com/watch?v=OFzkTxiwziQ





OEmbed• Retrieves embeddable content for a given link

http://www.flickr.com/services/oembed/?url=http%3A//www.flickr.com/photos/bees/2341623661/

{ "version": "1.0", "type": "photo", "width": 240, "height": 160, "title": "ZB8T0193", "url": "http://farm4.static.flickr.com/3123/2341623661_7c99f48bbf_m.jpg", "author_name": "Bees", "author_url": "http://www.flickr.com/photos/bees/", "provider_name": "Flickr", "provider_url": "http://www.flickr.com/"} hUp://oembed.com/





http://farm4.static.flickr.com/3123/2341623661_7c99f48bbf_m.jpg




http://www.flickr.com/photos/bees/

http://www.flickr.com/photos/bees/

http://www.flickr.com

http://www.flickr.com

http://oembed.com

http://oembed.com


OEmbed Discovery• Discoverable through meta tags at original resource

<link rel="alternate" type="application/json+oembed" href="http://flickr.com/services/oembed?url=http%3A//flickr.com/photos/bees/2362225867/&format=json" title="Bacon Lollys oEmbed Profile" /><link rel="alternate" type="text/xml+oembed" href="http://flickr.com/services/oembed?url=http%3A//flickr.com/photos/bees/2362225867/&format=xml" title="Bacon Lollys oEmbed Profile" />

http://flickr.com/services/oembed?





The embedded result

cool video:


OEmbed AggregaQon•embed.ly

•supports 112 services over one endpoint

•several libraries

•easy implementation

hUp://embed.ly/

http://embed.ly

http://embed.ly


DEMO


Many standards available


But sQll much to be done

• Friends and Friendships• Privacy• Access Control• What is the right idenLfier?• More than one provider with one E-‐Mail Address?• Wide adopLon• Easy implementaLon


Many projects -‐ one common goal

hUp://federatedsocialweb.net

http://federatedsocialweb.net



And many people working on it

hUp://federatedsocialweb.net




Social Web Acid Test -‐ Level 0

factoryjoe

http://www.flickr.com/photos/factoryjoe/

http://www.flickr.com/photos/factoryjoe/


How far is VZnet?• OpenSocial• OEmbed• OExchange• XRD• PortableContacts• AcLvityStrea.ms• OpenID• WebFinger• PubsubHubbub

•Salmon

•XAuth


Thank you

hUp://twiUer.com/BasLanHofmannhUp://studivz.net/basLanhUp://slideshare.net/[email protected]

hUp://developer.studivz.net

http://twitter.com/BastianHofmann

http://twitter.com/BastianHofmann

http://studivz.net/bastian

http://studivz.net/bastian

http://slideshare.net/bashofmann

http://slideshare.net/bashofmann



http://developer.studivz.net

http://developer.studivz.net