Freeing the Cloud, One Service at a Time

This talk presents an approach to building free network services and introduces Libravatar, a Django-based project to provide a federated and Open Source alternative to the Gravatar profile image hosting service, a centralised web service used by a large number of social sites in the cloud.

Transcript

1. François Marier francois@catalyst.net.nz freeing the cloud one (small) service at a time
5. open source desktop applications
6. SaaS
7. privacy ®
8. autonomy control
10. 1980s
13. 100% free operating systems
14. started replacing all proprietary programs one at a time
18. ” “ 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
19. start replacing all proprietary services one at a time
22. libreprojects.net
23. looking for a small one...
25. 1. upload photo 2. assign to email address
29. FMarier@GMail.com
30. fmarier@gmail.com
31. f52a1d3d8c39868fc92cf70828821635
32. http://www.gravatar.com/avatar/ f52a1d3d8c39868fc92cf70828821635.jpg
33. <img src=”http://www.gravatar.com/avatar/ f52a1d3d8c39868fc92cf70828821635.jpg”>
34. <img src=”http://www.gravatar.com/avatar/ f52a1d3d8c39868fc92cf70828821635.jpg”>
35. started to write a replacement
36. Libravatar
41. “80%” of what does protected accounts
42. “80%” of what does G / PG / X ratings XMLRPC API
43. must fit into the world
44. must fit into the world use the same API
45. must fit into the world use the same API be a Twitter client
46. https://api.twitter.com/statuses /show/123.xml https://identi.ca/api/statuses /show/123.xml use the same API
47. be a Twitter client
48. must fit into the world use the same API be a Gravatar client
49. http://www.gravatar.com/avatar/ f52a1d3d8c39868fc92cf70828821635.jpg http://cdn.libravatar.org/avatar/ f52a1d3d8c39868fc92cf70828821635.jpg use the same API
50. be a Gravatar client
51. Now, how about making it better?
53. Federation via DNS _avatars._tcp SRV avatars.catalyst.net.nz
54. IPv6
55. IPv6 SHA256
56. IPv6 SHA256 OpenID
57. IPv6 SHA256 OpenID LDAP
58. IPv6 SHA256 OpenID Account Export LDAP
59. IPv6 SHA256 OpenID Photo Importers Account Export LDAP
60. What does it look like?
61. Live demo!
62. Django photos uploaded or imported by users
63. Django static files on disk photos uploaded or imported by users
64. Apache (mod_rewrite) Django static files on disk avatars sent to third parties photos uploaded or imported by users
65. Apache (mod_rewrite) Django static files on disk avatars sent to third parties photos uploaded or imported by users high traffic (static) low traffic (dynamic)
66. Apache (mod_rewrite) Django static files on disk avatars sent to third parties photos uploaded or imported by users
67. Apache (mod_rewrite) Django static files on disk avatars sent to third parties photos uploaded or imported by users Crop, resize and optimise Gearman Queue
68. Apache (mod_rewrite) Django static files on disk avatars sent to third parties photos uploaded or imported by users Crop, resize and optimise Gearman Queue
69. Apache (mod_rewrite) Django static files on disk avatars sent to third parties photos uploaded or imported by users Crop, resize and optimise Gearman Queue Apache (mod_rewrite) static files on disk avatars sent to third parties Apache (mod_rewrite) static files on disk avatars sent to third parties
70. Who uses it?
73. --- 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>
74. --- 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'};
79. Get involved! • write a plugin www.libravatar.org launchpad.net/libravatar libravatar.onlinegroups.net #libravatar on chat.freenode.net
80. Get involved! • write a plugin • host a mirror www.libravatar.org launchpad.net/libravatar libravatar.onlinegroups.net #libravatar on chat.freenode.net
81. Get involved! • write a plugin • host a mirror • translate the UI www.libravatar.org launchpad.net/libravatar libravatar.onlinegroups.net #libravatar on chat.freenode.net
82. Get involved! • write a plugin • host a mirror • translate the UI • create an account today! www.libravatar.org launchpad.net/libravatar libravatar.onlinegroups.net #libravatar on chat.freenode.net
83. ideas for Libravatar? other easy services to replace? Questions? fmarier fmarier http://feeding.cloud.geek.nz
84. 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