CAS.pm
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# --
# Kernel/System/CustomerAuth/CAS.pm - provides the CAS authentication through Jasig
#
# Copyright (C) 2015-2017 - Rodrigo Gonçalves - rodrigo@goncalves.pro.br
# --
# $Id: CAS.pm,v 2.0 2015/01/05 15:16:05 mb Exp $
#
# Version 2015/01/15 - RG - Adjusts for OTRS4
# Version 2016-01-18 - RG - Fixes for OTRS 5.0.6
# Version 2017-12-07 - RG - Fixes for OTRS 6.0.1
#
# --
# This software comes with ABSOLUTELY NO WARRANTY. For details, see
# the enclosed file COPYING for license information (AGPL). If you
# did not receive this file, see http://www.gnu.org/licenses/agpl.txt.
# --
# Note:
#
# If you use this module, you should use as fallback the following config settings:
#
# If use isn't login through apache ($ENV{REMOTE_USER} or $ENV{HTTP_REMOTE_USER})
# $Self->{CustomerPanelLoginURL} = 'http://host.example.com/not-authorised-for-otrs.html';
#
# $Self->{CustomerPanelLogoutURL} = 'http://host.example.com/thanks-for-using-otrs.html';
#
# --
package Kernel::System::CustomerAuth::CAS;
use strict;
use warnings;
use CGI;
use AuthCAS;
use Data::Dumper;
use CGI::Carp qw( fatalsToBrowser );
use URI::Escape;
our @ObjectDependencies = ( "Kernel::Config", "Kernel::System::Log", "Kernel::System::DB" );
sub new {
my ( $Type, %Param ) = @_;
# allocate new hash for object
my $Self = {};
bless( $Self, $Type );
# Debug 0=off 1=on
$Self->{Debug} = 0;
$Self->{Count} = $Param{Count} || '';
return $Self;
}
sub GetOption {
my ( $Self, %Param ) = @_;
# check needed stuff
if ( !$Param{What} ) {
$Kernel::OM->Get('Kernel::System::Log')->Log( Priority => 'error', Message => "Need What!" );
return;
}
# module options
my %Option = ( PreAuth => 1, );
# return option
return $Option{ $Param{What} };
}
sub Auth {
my ( $Self, %Param ) = @_;
my $QueryString = $ENV{"HTTP_REFERER"} || '';
my $ConfigObject = $Kernel::OM->Get("Kernel::Config");
my $cas = new AuthCAS( casUrl => $ConfigObject->Get('Customer::AuthModule::CAS::CASUrl') );
my $app_url = $ConfigObject->Get('Customer::AuthModule::CAS::ServiceUrl');
my $Gateway = $ConfigObject->Get('Customer::AuthModule::CAS::Gateway');
my $User = '';
if ( $Gateway == 1 ) {
# TEST MODE
if ( $QueryString =~ /ticket/ ) {
$QueryString =~ /ticket%3D([^&]+)/;
my $ST = $1;
my $User = $cas->validateST( $app_url, $ST );
return $User;
}
if ( $QueryString =~ /checked_cas/ ) {
return '';
}
my $login_url = $cas->getServerLoginGatewayURL( $app_url . '?checked_cas=1' );
my $q = CGI->new();
print $q->redirect( -URL => $login_url );
}
else {
$Self->Debug("Autenticando: " . $QueryString);
# If no ticket passed, redirect to CAS to authenticate/get token
unless ( $QueryString =~ /ticket=/ || $QueryString =~ /ticket%3D/ ) {
my $redurl = $app_url . "?" . $Param{RequestedURL};
$redurl = uri_escape($redurl);
my $login_url = $cas->getServerLoginURL( $redurl );
my $q = CGI->new();
print $q->redirect( -URL => $login_url );
}
else {
$Self->Debug("Recebida URL com ticket: " . $QueryString);
# CAS session created - record id
$QueryString =~ /ticket=([^&]+)/;
my $ST = $1;
if (! $ST) {
$QueryString =~ /ticket%3D([^&]+)/;
$ST = $1;
}
my $requrl = $Param{RequestedURL};
my $substring = substr($requrl, 0, index($requrl, "&ticket=ST"));
my $redurl = $app_url . "?" . $substring;
$redurl = uri_escape($redurl);
$Self->Debug("Validando URL $redurl com ticket $ST");
$User = $cas->validateST( $redurl, $ST );
$Self->Debug("Autenticou... $User");
if ($User) {
$Kernel::OM->Get("Kernel::System::DB")->Do(
SQL => 'DELETE FROM cas_session WHERE UserLogin=?',
Bind => [ \$User ],
);
$Kernel::OM->Get("Kernel::System::DB")->Do(
SQL => 'INSERT INTO cas_session (UserLogin,Ticket) VALUES (?, ?)',
Bind => [ \$User, \$ST, ],
);
}
}
}
return $User;
}
sub Debug {
my $Self = shift;
my $msg = shift;
$Kernel::OM->Get("Kernel::System::Log")->Log( Priority => 'debug', Message => $msg );
}
1;