members/two_factor_auth.pl

   1 #!/usr/bin/perl
   2
   3 # This file is part of Koha.
   4 #
   5 # Koha is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # Koha is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  17
  18 use Modern::Perl;
  19
  20 use CGI qw(-utf8);
  21
  22 use C4::Auth qw( get_template_and_user );
  23 use C4::Output qw( output_and_exit output_html_with_http_headers );
  24
  25 use Koha::Patrons;
  26 use Koha::Auth::TwoFactorAuth;
  27 use Koha::Token;
  28
  29 my $cgi = CGI->new;
  30
  31 my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
  32     {
  33         template_name => 'members/two_factor_auth.tt',
  34         query         => $cgi,
  35         type          => 'intranet',
  36         flagsrequired => { editcatalogue => '*' },
  37     }
  38 );
  39
  40 unless ( C4::Context->preference('TwoFactorAuthentication') ) {
  41     print $cgi->redirect("/cgi-bin/koha/errors/404.pl");
  42     exit;
  43 }
  44
  45 my $logged_in_user = Koha::Patrons->find($loggedinuser);
  46 my $op             = $cgi->param('op') // '';
  47
  48 if ( !C4::Context->config('encryption_key') ) {
  49     $template->param( missing_key => 1 );
  50 }
  51 else {
  52
  53     my $csrf_pars = {
  54         session_id => scalar $cgi->cookie('CGISESSID'),
  55         token      => scalar $cgi->param('csrf_token'),
  56     };
  57
  58     if ( $op eq 'register-2FA' ) {
  59         output_and_exit( $cgi, $cookie, $template, 'wrong_csrf_token' )
  60           unless Koha::Token->new->check_csrf($csrf_pars);
  61
  62         my $pin_code = $cgi->param('pin_code');
  63         my $secret32 = $cgi->param('secret32');
  64         my $auth     = Koha::Auth::TwoFactorAuth->new(
  65             { patron => $logged_in_user, secret32 => $secret32 } );
  66
  67         my $verified = $auth->verify(
  68             $pin_code,
  69             1,        # range
  70             $secret32,
  71             undef,    # timestamp (defaults to now)
  72             30,       # interval (default 30)
  73         );
  74
  75         if ($verified) {
  76
  77             # FIXME Generate a (new?) secret
  78             $logged_in_user->encode_secret($secret32);
  79             $logged_in_user->auth_method('two-factor')->store;
  80             $op = 'registered';
  81             if ( $logged_in_user->notice_email_address ) {
  82                 $logged_in_user->queue_notice(
  83                     {
  84                         letter_params => {
  85                             module      => 'members',
  86                             letter_code => '2FA_ENABLE',
  87                             branchcode  => $logged_in_user->branchcode,
  88                             lang        => $logged_in_user->lang,
  89                             tables      => {
  90                                 branches  => $logged_in_user->branchcode,
  91                                 borrowers => $logged_in_user->id
  92                             },
  93                         },
  94                         message_transports => ['email'],
  95                     }
  96                 );
  97             }
  98         }
  99         else {
 100             $template->param( invalid_pin => 1, );
 101             $op = 'enable-2FA';
 102         }
 103     }
 104
 105     if ( $op eq 'enable-2FA' ) {
 106         my $secret = Koha::AuthUtils::generate_salt( 'weak', 16 );
 107         my $auth   = Koha::Auth::TwoFactorAuth->new(
 108             { patron => $logged_in_user, secret => $secret } );
 109
 110         $template->param(
 111             issuer   => $auth->issuer,
 112             key_id   => $auth->key_id,
 113             qr_code  => $auth->qr_code,
 114             secret32 => $auth->secret32,
 115
 116             # IMPORTANT: get secret32 after qr_code call !
 117         );
 118         $auth->clear;
 119         $op = 'register';
 120     }
 121     elsif ( $op eq 'disable-2FA' ) {
 122         output_and_exit( $cgi, $cookie, $template, 'wrong_csrf_token' )
 123           unless Koha::Token->new->check_csrf($csrf_pars);
 124         my $auth =
 125           Koha::Auth::TwoFactorAuth->new( { patron => $logged_in_user } );
 126         $logged_in_user->secret(undef);
 127         $logged_in_user->auth_method('password')->store;
 128         if ( $logged_in_user->notice_email_address ) {
 129             $logged_in_user->queue_notice(
 130                 {
 131                     letter_params => {
 132                         module      => 'members',
 133                         letter_code => '2FA_DISABLE',
 134                         branchcode  => $logged_in_user->branchcode,
 135                         lang        => $logged_in_user->lang,
 136                         tables      => {
 137                             branches  => $logged_in_user->branchcode,
 138                             borrowers => $logged_in_user->id
 139                         },
 140                     },
 141                     message_transports => ['email'],
 142                 }
 143             );
 144         }
 145     }
 146 }
 147
 148 $template->param(
 149     csrf_token => Koha::Token->new->generate_csrf(
 150         { session_id => scalar $cgi->cookie('CGISESSID') }
 151     ),
 152     patron => $logged_in_user,
 153     op     => $op,
 154 );
 155
 156 output_html_with_http_headers $cgi, $cookie, $template->output;