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#!/usr/bin/perl
# Copyright 2009 SARL BibLibre
#
# This file is part of Koha.
#
# Koha 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 3 of the License, or
# (at your option) any later version.
#
# Koha 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 Koha; if not, see <http://www.gnu.org/licenses>.
=head1 DESCRIPTION
# This page will display the result of the call to the koha webservice
=head1 CGI PARAMETERS
=item PGTIOU
The Proxy Granting Ticket IOU the CAS Server returned to us when we gave him the Service Ticket
This PGTIOU will allow us to retrive the matching PGTID
=cut
use Modern::Perl;
use CGI qw ( -utf8 );
use Authen::CAS::Client;
use Storable qw(fd_retrieve);
use LWP::Simple;
use URI::Escape;
my $casServerUrl = 'https://localhost:8443/cas/';
my $cas = Authen::CAS::Client->new($casServerUrl);
# URL of the service we'd like to be proxy for (typically the Koha webservice we want to query)
my $target_service = "https://.../koha_webservice.pl";
my $cgi = new CGI;
print $cgi->header({-type => 'text/html'});
print $cgi->start_html("proxy cas");
if ($cgi->param('PGTIOU')) {
# At this point, we must retrieve the PgtId by matching the PgtIou we
# just received and the PgtIou given by the CAS Server to the callback URL
# The callback page stored it in the application vars (in our case a storable object in a file)
open FILE, "casSession.tmp" or die "Unable to open file";
my $hashref = fd_retrieve(\*FILE);
my $pgtId = %$hashref->{$cgi->param('PGTIOU')};
close FILE;
# Now that we have a PgtId, we can ask the cas server for a proxy ticket...
my $rp = $cas->proxy( $pgtId, $target_service );
if( $rp->is_success ) {
print "Proxy Ticket issued: ", $rp->proxy_ticket, "<br />\n";
# ...which we will provide to the target service (the koha webservice) for authentication !
my $data = get($target_service . "?PT=" . $rp->proxy_ticket);
# And finally, we can display the data gathered from the koha webservice !
print "This is the output of the koha webservice we just queried, CAS authenticated : <br/>";
print "<code>$data</code>";
} else {
print "Cannot get Proxy Ticket";
}
}