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AuthCAS(3pm)


NAME

   AuthCAS - Client library for CAS 2.0 authentication server

VERSION

   Version 1.5

DESCRIPTION

   AuthCAS aims at providing a Perl API to Yale's Central Authentication
   System (CAS). Only a basic Perl library is provided with CAS whereas
   AuthCAS is a full object-oriented library.  =head1 PREREQUISITES

   This script requires IO::Socket::SSL and LWP::UserAgent

   any

   Network

SYNOPSIS

     A simple example with a direct CAS authentication

     use AuthCAS;
     my $cas = new AuthCAS(casUrl => 'https://cas.myserver,
                       CAFile => '/etc/httpd/conf/ssl.crt/ca-bundle.crt',
                       );

     my $login_url = $cas->getServerLoginURL('http://myserver/app.cgi');

     ## The user should be redirected to the $login_url
     ## When coming back from the CAS server a ticket is provided in the QUERY_STRING

     ## $ST should contain the receaved Service Ticket
     my $user = $cas->validateST('http://myserver/app.cgi', $ST);

     printf "User authenticated as %s\n", $user;

     In the following example a proxy is requesting a Proxy Ticket for the target application

     $cas->proxyMode(pgtFile => '/tmp/pgt.txt',
                     pgtCallbackUrl => 'https://myserver/proxy.cgi?callback=1
                     );

     ## Same as before but the URL is the proxy URL
     my $login_url = $cas->getServerLoginURL('http://myserver/proxy.cgi');

     ## Like in the previous example we should receave a $ST

     my $user = $cas->validateST('http://myserver/proxy.cgi', $ST);

     ## Process errors
     printf STDERR "Error: %s\n", &AuthCAS::get_errors() unless (defined $user);

     ## Now we request a Proxy Ticket for the target application
     my $PT = $cas->retrievePT('http://myserver/app.cgi');

     ## This piece of code is executed by the target application
     ## It received a Proxy Ticket from the proxy
     my ($user, @proxies) = $cas->validatePT('http://myserver/app.cgi', $PT);

     printf "User authenticated as %s via %s proxies\n", $user, join(',',@proxies);

DESCRIPTION

   CAS is Yale University's web authentication system, heavily inspired by
   Kerberos.  Release 2.0 of CAS provides "proxied credential" feature
   that allows authentication tickets to be carried by intermediate
   applications (Portals for instance), they are called proxy.

   This AuthCAS Perl module provides required subroutines to validate and
   retrieve CAS tickets.

SEE ALSO

   Yale Central Authentication Service (http://www.yale.edu/tp/auth/)
    phpCAS (http://esup-phpcas.sourceforge.net/)

COPYRIGHT

   Copyright (C) 2003 Comite Reseau des Universites (http://www.cru.fr).
   All rights reserved.

   This library is free software; you can redistribute it and/or modify it
   under the same terms as Perl itself.

AUTHORS

   Olivier Salaun



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