Freeing the cloud, one service at a time

freeing the cloud
one (small) service at a time

François Marier
francois@catalyst.net.nz

open source
desktop
applications

100% free

operating systems

started replacing all
proprietary programs
one at a time

“
Developers of network services are encouraged to:

● Use the GNU Affero GPL, a license designed specifically for network
service software, to ensure that users of services have the ability to
examine the source or implement their own service.

● Develop freely-licensed alternatives to existing popular but non-Free
network services.

”
● Develop software that can replace centralized services and data storage
with distributed software and data deployment, giving control back to
users.

Franklin Street Statement, 14 July 2008

start replacing all
proprietary services
one at a time

2. assign to email address

1. upload photo

f52a1d3d8c39868fc92cf70828821635

http://www.gravatar.com/avatar/
f52a1d3d8c39868fc92cf70828821635.jpg

started to write a replacement

“80%” of what does

protected accounts

“80%” of what does

G / PG / X ratings

XMLRPC API

must fit into the world

use the same API


use the same API

be a Twitter client

use the same API
https://api.twitter.com/statuses
/show/123.xml

https://identi.ca/api/statuses
/show/123.xml


use the same API

be a Gravatar client

use the same API
http://www.gravatar.com/avatar/
f52a1d3d8c39868fc92cf70828821635.jpg

http://cdn.libravatar.org/avatar/
f52a1d3d8c39868fc92cf70828821635.jpg

Now, how about making it better?

Federation via DNS

_avatars._tcp SRV avatars.catalyst.net.nz

IPv6 SHA256 OpenID

LDAP

IPv6 SHA256 OpenID

Account
LDAP
Export

IPv6 SHA256 OpenID

Account Photo
LDAP
Export Importers

photos uploaded
or imported by users

Django

photos uploaded
or imported by users

Django

static files
on disk

avatars sent to photos uploaded
third parties or imported by users

Apache
Django
(mod_rewrite)

static files
on disk


high traffic
Apache
low traffic
Django
(mod_rewrite)

(static) (dynamic)
static files
on disk


Apache
Django
(mod_rewrite)

Gearman
Crop, resize
static files Queue
and optimise
on disk

avatars sent to avatars sent to avatars sent to photos uploaded
third parties third parties third parties or imported by users

Apache Apache Apache
Django
(mod_rewrite) (mod_rewrite) (mod_rewrite)

Gearman
Crop, resize
static files static files static files Queue
and optimise
on disk on disk on disk

--- a/IkiWiki/Plugin/comments.pm
+++ b/IkiWiki/Plugin/comments.pm
@@ -187,6 +188,16 @@ sub preprocess {

$commentauthor = $commentuser;
}
+
+ eval 'use Libravatar::URL';
+
+ if (! $@) {
+ my $email = IkiWiki::userinfo_get($commentuser, 'email');
+
+ if (defined $email) {
+ $commentauthoravatar = libravatar_url(email => $email);
+ }
+ }
}
else {
if (defined $params{ip}) {
--- a/templates/comment.tmpl
+++ b/templates/comment.tmpl
@@ -1,6 +1,10 @@
<TMPL_IF HTML5><article class="comment" id="<TMPL_VAR COMMENTID>">
<TMPL_ELSE><div class="comment" id="<TMPL_VAR COMMENTID>"></TMPL_IF>

+<TMPL_IF COMMENTAUTHORAVATAR><div class="comment-avatar">
+<img src="<TMPL_VAR COMMENTAUTHORAVATAR>" alt="" />
+</div></TMPL_IF>
+
<TMPL_IF HTML5><header class="comment-subject">
<TMPL_ELSE><div class="comment-subject"></TMPL_IF>
<TMPL_IF PERMALINK>

--- a/koha-tmpl/opac-tmpl/prog/en/modules/opac-detail.tt
+++ b/koha-tmpl/opac-tmpl/prog/en/modules/opac-detail.tt
@@ -675,6 +678,9 @@ YAHOO.util.Event.onContentReady("furtherm", function () {
[% ELSE %]
<div class="commentline">
[% IF ( ShowReviewer ) %]
+ [% IF ( review.avatarurl ) %]
+ <img class="avatar" src="[% review.avatarurl %]" height="80" width="80"/>
+ [% END %]
<h5>
Comment by
[% review.title %]
--- a/opac/opac-detail.pl
+++ b/opac/opac-detail.pl
@@ -295,6 +295,13 @@ $template->param(
ocoins => GetCOinSBiblio($biblionumber),
);

+my $libravatar_available = 0;
+eval 'use Libravatar::URL';
+if (! $@) {
+ $libravatar_available = 1;
+}

my $reviews = getreviews( $biblionumber, 1 );
my $loggedincommenter;
@@ -303,6 +310,9 @@ foreach ( @$reviews ) {
$_->{title} = $borrowerData->{'title'};
$_->{surname} = $borrowerData->{'surname'};
$_->{firstname} = $borrowerData->{'firstname'};
+ if ($libravatar_available and $borrowerData->{'email'}) {
+ $_->{avatarurl} = libravatar_url(email => $borrowerData->{'email'});
+ }
$_->{userid} = $borrowerData->{'userid'};
$_->{cardnumber} = $borrowerData->{'cardnumber'};

Get involved!
● write a plugin

www.libravatar.org libravatar.onlinegroups.net
launchpad.net/libravatar #libravatar on chat.freenode.net

Get involved!
● write a plugin
● host a mirror


Get involved!
● write a plugin
● host a mirror
● translate the UI


Get involved!
● write a plugin
● host a mirror
● translate the UI
● create an account today!


Questions?
ideas for Libravatar?

other easy services to replace?

fmarier fmarier

http://feeding.cloud.geek.nz

Photo credits
Storm clouds: http://www.flickr.com/photos/johnson7/1460568819/
Linen texture: http://www.flickr.com/photos/zooboing/4715048673/
Name tag: http://www.flickr.com/photos/stevegarfield/833593377/
Cloud sign: http://www.flickr.com/photos/jamescridland/4122948535/
Facebook data center: http://www.flickr.com/photos/traftery/5596941479/
First web server: http://www.flickr.com/photos/scobleizer/2251820987/
Bradley Kuhn: https://secure.wikimedia.org/wikipedia/en/wiki/File:Bkuhn-2008-08-20.jpg
Benjamin Mako Hill: http://www.flickr.com/photos/soulfish/2374876735
Mike Linksvayer: http://www.flickr.com/photos/joi/2595169497/
Luis Villa: http://tieguy.org/pics/Wedding/Honeymoon/Highlights/New-Zealand/img_2145
Henri Poole: http://www.flickr.com/photos/weblogsky/9271675/
Evan Prodromou: http://www.flickr.com/photos/christopheducamp/4469158609/
Jonathan Gray: http://www.flickr.com/photos/jwyg/4497000847/
Aaron Swartz: http://www.flickr.com/photos/creativecommons/3111021669/
Evan Prodromou presenting: http://www.flickr.com/photos/walkah/4831658754

Copyright © 2011 François Marier
Released under the terms of the Creative Commons
Attribution Share Alike 3.0 Unported Licence

Freeing the cloud, one service at a time

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