diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/AuthFacebook.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/AuthFacebook.pm
new file mode 100644
index 000000000..531bc4297
--- /dev/null
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/AuthFacebook.pm
@@ -0,0 +1,186 @@
+##@file
+# Facebook authentication backend file
+
+##@class
+# Facebook authentication backend class.
+package Lemonldap::NG::Portal::AuthFacebook;
+
+use strict;
+use Lemonldap::NG::Portal::Simple;
+use Lemonldap::NG::Common::Regexp;
+use LWP::UserAgent;
+#use URI::Escape;
+use Net::Facebook::Oauth2;
+
+our $VERSION = '1.3.0';
+#our $initDone;
+
+#BEGIN {
+# eval {
+# require threads::shared;
+# threads::shared::share($initDone);
+# };
+#}
+
+## @method LWP::UserAgent ua()
+# @return LWP::UserAgent object
+sub ua {
+ my $self = shift;
+ return $self->{ua} ||= LWP::UserAgent->new();
+}
+
+## @apmethod int authInit()
+# @return Lemonldap::NG::Portal constant
+sub authInit {
+ PE_OK;
+}
+
+## @apmethod int extractFormInfo()
+# Read username return by Facebook authentication system.
+# @return Lemonldap::NG::Portal constant
+sub extractFormInfo {
+ my $self = shift;
+
+ # 1. Check Facebook responses
+ if ( $self->param('code') ) {
+ }
+
+ # 2. Redirect user to Facebook login page:
+ # * no OpenID response or missing datas
+ print $self->redirect($check_url);
+ $self->quit();
+}
+
+## @apmethod int setAuthSessionInfo()
+# Set _user and authenticationLevel.
+# @return Lemonldap::NG::Portal constant
+sub setAuthSessionInfo {
+ my $self = shift;
+
+ $self->{sessionInfo}->{'_user'} = $self->{user};
+
+ $self->{sessionInfo}->{authenticationLevel} = $self->{facebookAuthnLevel};
+
+ PE_OK;
+}
+
+## @apmethod int authenticate()
+# Does nothing.
+# @return Lemonldap::NG::Portal constant
+sub authenticate {
+ PE_OK;
+}
+
+## @apmethod int authFinish()
+# Does nothing.
+# @return Lemonldap::NG::Portal constant
+sub authFinish {
+ PE_OK;
+}
+
+## @apmethod int authLogout()
+# Does nothing
+# @return Lemonldap::NG::Portal constant
+sub authLogout {
+ PE_OK;
+}
+
+## @apmethod boolean authForce()
+# Does nothing
+# @return result
+sub authForce {
+ return 0;
+}
+
+## @method string getDisplayType
+# @return display type
+sub getDisplayType {
+ return "logo";
+}
+
+1;
+__END__
+
+=head1 NAME
+
+=encoding utf8
+
+Lemonldap::NG::Portal::AuthFacebook - Perl extension for building Lemonldap::NG
+compatible portals with Facebook authentication.
+
+=head1 SYNOPSIS
+
+ use Lemonldap::NG::Portal::SharedConf;
+ my $portal = new Lemonldap::NG::Portal::Simple(
+ configStorage => {...}, # See Lemonldap::NG::Portal
+ authentication => 'Facebook',
+ );
+
+ if($portal->process()) {
+ # Write here the menu with CGI methods. This page is displayed ONLY IF
+ # the user was not redirected here.
+ print $portal->header('text/html; charset=utf8'); # DON'T FORGET THIS (see CGI(3))
+ print "...";
+ }
+ else {
+ # If the user enters here, IT MEANS THAT CAS REDIRECTION DOES NOT WORK
+ print $portal->header('text/html; charset=utf8'); # DON'T FORGET THIS (see CGI(3))
+ print "Unable to work
";
+ print "This server isn't well configured. Contact your administrator.";
+ print "";
+ }
+
+=head1 DESCRIPTION
+
+This library just overload few methods of Lemonldap::NG::Portal::Simple to use
+Facebook authentication mechanism.
+
+See L for usage and other methods.
+
+=head1 SEE ALSO
+
+L, L,
+L, L
+L
+
+=head1 AUTHOR
+
+=over
+
+=item Xavier Guimard, Ex.guimard@free.frE
+
+=back
+
+=head1 BUG REPORT
+
+Use OW2 system to report bug or ask for features:
+L
+
+=head1 DOWNLOAD
+
+Lemonldap::NG is available at
+L
+
+=head1 COPYRIGHT AND LICENSE
+
+=over
+
+=item Copyright (C) 2013 by Xavier Guimard, Ex.guimard@free.frE
+
+=back
+
+This library is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see L.
+
+=cut
+