1. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Distributed Social Networking
Bastian Hofmann
VZnet Netzwerke Ltd.

2. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Agenda
• WebFinger • OExchange
• Well-­‐Known
URIs • XAuth
• Web
Host
Meta
Data • OEmbed
• XRD • SWAT0
• Portable
Contacts
• AcLvity
Strea.ms
• PubSubHubbub
• Salmon

3. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
nikko russano*

4. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
...
you
could
not
send
a
mail
to
another
provider

5. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
...
you
could
not
call
your
friends
at
another
carrier

6. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Back
to
reality

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

8. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Meet
Bill
and
Steve

9. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Bill
want‘s
to
know
more
about
Steve
paurian

10. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
In
the
old
days:
Finger
bhofmann@svz-pcn-107 ~ $ finger bhofmann
Login: bhofmann Name: Bastian Hofmann
Directory: /Users/bhofmann Shell: /bin/bash
On since Di 14 Sep 21:45 (CEST) on console, idle 1:36 (messages
off)
On since Di 14 Sep 23:02 (CEST) on ttys000
No Mail.
No Plan.

11. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Now:
WebFinger
hUp://code.google.com/p/webfinger/

12. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
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[-­‐nongham-­‐site-­‐meta
hUp://tools.ieZ.org/html/dra[-­‐hammer-­‐hostmeta
hUp://docs.oasis-­‐open.org/xri/xrd/v1.0/xrd-­‐1.0.html

13. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
hCp://example.com/describe?
uri=acct:joe@example.com
<?xml version='1.0' encoding='UTF-8'?>
<XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'>
<Subject>acct:joe@example.com</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>

14. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Portable
Contacts
• standardized
access
to
user
data
and
their
relaLons
(Social
Graph)
• simple
to
use
{
"id" : "example.org:34KJDCSKJN2HHF0DW20394",
"displayName" : "Janey",
"name" : {"unstructured" : "Jane Doe"},
"gender" : "female"
}
hUp://portablecontacts.net/

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

16. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
He
want‘s
to
follow
Steve‘s
status
updates

17. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
AcQvityStrea.ms
• Standard
for
a
stream
of
acLviLes
(Feed)
• Atom
based
hUp://acLvitystrea.ms/

18. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
PubSubHubbub
retrieves
Atom
feed
with
Hub
URL
subscribes
for
feed
acks
Hub
subscripLon
pings
every posts
sth
subscriber
hUp://code.google.com/p/pubsubhubbub/

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

20. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Now
Bill
menQons
Steve
to
his
pal
have
a
look
at
@steve
stream

21. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
and
what
about
Comments?
new
macs
will
have
IE9
I
would‘ve
chosen
Chrome

22. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Salmon
hUp://www.salmon-­‐protocol.org/

23. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Salmon
hUp://www.salmon-­‐protocol.org/

24. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Salmon
hUp://www.salmon-­‐protocol.org/

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

26. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Bill
is
now
on
his
favourite
Video
Portal

27. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
He
want‘s
to
share
a
video
with
his
friends
...
but
his
favourite
social
network
has
no
sharing
buUon
at
YouTube

28. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Nascar
Problem

29. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
XAuth
hUp://xauth.org/

30. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
XAuth
at
Provider
• 100%
Client
Technology
Login xauth.org/xauth.js
XAuth.extend({
token: "1",
expire: new Date().getTime()
+ 60*60*24*1000,
extend: ["*"],
});

31. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
XAuth
at
Consumer
•But static server on central domain
needed
Visits xauth.org/xauth.js
XAuth.retrieve({
retrieve: ['xauth.org'],
callback: receiveTokens
});

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

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

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

35. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Now
there
is
a
link
in
his
status
update
cool
video:
hUp://www.youtube.com/
watch?v=OFzkTxiwziQ

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

37. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
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" />

38. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
The
embedded
result
cool
video:

39. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
OEmbed
AggregaQon
•embed.ly
•supports 112 services over one
endpoint
•several libraries
•easy implementation
hUp://embed.ly/

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

41. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Many
standards
available

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

43. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Many
projects
-­‐
one
common
goal
hUp://federatedsocialweb.net

44. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
And
many
people
working
on
it
hUp://federatedsocialweb.net

45. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Social
Web
Acid
Test
-­‐
Level
0
factoryjoe

46. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
How
far
is
VZnet?
• OpenSocial •Salmon
• OEmbed •XAuth
• OExchange
• XRD
• PortableContacts
• AcLvityStrea.ms
• OpenID
• WebFinger
• PubsubHubbub

47. VZnet
Netzwerke
Ltd.
-­‐
Monday,
December
6,
2010
Thank
you
hUp://twiUer.com/BasLanHofmann
hUp://studivz.net/basLan
hUp://slideshare.net/bashofmann
bhofmann@vz.net
hUp://developer.studivz.net