C4/Auth.pm

   1 package C4::Auth;
   2
   3 # Copyright 2000-2002 Katipo Communications
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20 use strict;
  21 use warnings;
  22 use Carp qw/croak/;
  23
  24 use Digest::MD5 qw(md5_base64);
  25 use JSON qw/encode_json/;
  26 use URI::Escape;
  27 use CGI::Session;
  28
  29 require Exporter;
  30 use C4::Context;
  31 use C4::Templates;    # to get the template
  32 use C4::Languages;
  33 use C4::Search::History;
  34 use Koha;
  35 use Koha::Caches;
  36 use Koha::AuthUtils qw(get_script_name hash_password);
  37 use Koha::Checkouts;
  38 use Koha::DateUtils qw(dt_from_string);
  39 use Koha::Library::Groups;
  40 use Koha::Libraries;
  41 use Koha::Patrons;
  42 use Koha::Patron::Consents;
  43 use POSIX qw/strftime/;
  44 use List::MoreUtils qw/ any /;
  45 use Encode qw( encode is_utf8);
  46 use C4::Auth_with_shibboleth;
  47 use Net::CIDR;
  48
  49 # use utf8;
  50 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug $ldap $cas $caslogout);
  51
  52 BEGIN {
  53     sub psgi_env { any { /^psgi\./ } keys %ENV }
  54
  55     sub safe_exit {
  56         if   (psgi_env) { die 'psgi:exit' }
  57         else            { exit }
  58     }
  59
  60     C4::Context->set_remote_address;
  61
  62     $debug     = $ENV{DEBUG};
  63     @ISA       = qw(Exporter);
  64     @EXPORT    = qw(&checkauth &get_template_and_user &haspermission &get_user_subpermissions);
  65     @EXPORT_OK = qw(&check_api_auth &get_session &check_cookie_auth &checkpw &checkpw_internal &checkpw_hash
  66       &get_all_subpermissions &get_user_subpermissions track_login_daily &in_ipset
  67     );
  68     %EXPORT_TAGS = ( EditPermissions => [qw(get_all_subpermissions get_user_subpermissions)] );
  69     $ldap      = C4::Context->config('useldapserver') || 0;
  70     $cas       = C4::Context->preference('casAuthentication');
  71     $caslogout = C4::Context->preference('casLogout');
  72     require C4::Auth_with_cas;    # no import
  73
  74     if ($ldap) {
  75         require C4::Auth_with_ldap;
  76         import C4::Auth_with_ldap qw(checkpw_ldap);
  77     }
  78     if ($cas) {
  79         import C4::Auth_with_cas qw(check_api_auth_cas checkpw_cas login_cas logout_cas login_cas_url logout_if_required);
  80     }
  81
  82 }
  83
  84 =head1 NAME
  85
  86 C4::Auth - Authenticates Koha users
  87
  88 =head1 SYNOPSIS
  89
  90   use CGI qw ( -utf8 );
  91   use C4::Auth;
  92   use C4::Output;
  93
  94   my $query = new CGI;
  95
  96   my ($template, $borrowernumber, $cookie)
  97     = get_template_and_user(
  98         {
  99             template_name   => "opac-main.tt",
 100             query           => $query,
 101       type            => "opac",
 102       authnotrequired => 0,
 103       flagsrequired   => { catalogue => '*', tools => 'import_patrons' },
 104   }
 105     );
 106
 107   output_html_with_http_headers $query, $cookie, $template->output;
 108
 109 =head1 DESCRIPTION
 110
 111 The main function of this module is to provide
 112 authentification. However the get_template_and_user function has
 113 been provided so that a users login information is passed along
 114 automatically. This gets loaded into the template.
 115
 116 =head1 FUNCTIONS
 117
 118 =head2 get_template_and_user
 119
 120  my ($template, $borrowernumber, $cookie)
 121      = get_template_and_user(
 122        {
 123          template_name   => "opac-main.tt",
 124          query           => $query,
 125          type            => "opac",
 126          authnotrequired => 0,
 127          flagsrequired   => { catalogue => '*', tools => 'import_patrons' },
 128        }
 129      );
 130
 131 This call passes the C<query>, C<flagsrequired> and C<authnotrequired>
 132 to C<&checkauth> (in this module) to perform authentification.
 133 See C<&checkauth> for an explanation of these parameters.
 134
 135 The C<template_name> is then used to find the correct template for
 136 the page. The authenticated users details are loaded onto the
 137 template in the logged_in_user variable (which is a Koha::Patron object). Also the
 138 C<sessionID> is passed to the template. This can be used in templates
 139 if cookies are disabled. It needs to be put as and input to every
 140 authenticated page.
 141
 142 More information on the C<gettemplate> sub can be found in the
 143 Output.pm module.
 144
 145 =cut
 146
 147 sub get_template_and_user {
 148
 149     my $in = shift;
 150     my ( $user, $cookie, $sessionID, $flags );
 151
 152     # Get shibboleth login attribute
 153     my $shib = C4::Context->config('useshibboleth') && shib_ok();
 154     my $shib_login = $shib ? get_login_shib() : undef;
 155
 156     C4::Context->interface( $in->{type} );
 157
 158     $in->{'authnotrequired'} ||= 0;
 159
 160     # the following call includes a bad template check; might croak
 161     my $template = C4::Templates::gettemplate(
 162         $in->{'template_name'},
 163         $in->{'type'},
 164         $in->{'query'},
 165     );
 166
 167     if ( $in->{'template_name'} !~ m/maintenance/ ) {
 168         ( $user, $cookie, $sessionID, $flags ) = checkauth(
 169             $in->{'query'},
 170             $in->{'authnotrequired'},
 171             $in->{'flagsrequired'},
 172             $in->{'type'}
 173         );
 174     }
 175
 176     # If we enforce GDPR and the user did not consent, redirect
 177     # Exceptions for consent page itself and SCI/SCO system
 178     if( $in->{type} eq 'opac' && $user &&
 179         $in->{'template_name'} !~ /^(opac-patron-consent|sc[io]\/)/ &&
 180         C4::Context->preference('GDPR_Policy') eq 'Enforced' )
 181     {
 182         my $consent = Koha::Patron::Consents->search({
 183             borrowernumber => getborrowernumber($user),
 184             type => 'GDPR_PROCESSING',
 185             given_on => { '!=', undef },
 186         })->next;
 187         if( !$consent ) {
 188             print $in->{query}->redirect(-uri => '/cgi-bin/koha/opac-patron-consent.pl', -cookie => $cookie);
 189             safe_exit;
 190         }
 191     }
 192
 193     if ( $in->{type} eq 'opac' && $user ) {
 194         my $kick_out;
 195
 196         if (
 197 # If the user logged in is the SCO user and they try to go out of the SCO module,
 198 # log the user out removing the CGISESSID cookie
 199             $in->{template_name} !~ m|sco/| && $in->{template_name} !~ m|errors/errorpage.tt|
 200             && C4::Context->preference('AutoSelfCheckID')
 201             && $user eq C4::Context->preference('AutoSelfCheckID')
 202           )
 203         {
 204             $kick_out = 1;
 205         }
 206         elsif (
 207 # If the user logged in is the SCI user and they try to go out of the SCI module,
 208 # kick them out unless it is SCO with a valid permission
 209 # or they are a superlibrarian
 210                $in->{template_name} !~ m|sci/|
 211             && haspermission( $user, { self_check => 'self_checkin_module' } )
 212             && !(
 213                 $in->{template_name} =~ m|sco/| && haspermission(
 214                     $user, { self_check => 'self_checkout_module' }
 215                 )
 216             )
 217             && $flags && $flags->{superlibrarian} != 1
 218           )
 219         {
 220             $kick_out = 1;
 221         }
 222
 223         if ($kick_out) {
 224             $template = C4::Templates::gettemplate( 'opac-auth.tt', 'opac',
 225                 $in->{query} );
 226             $cookie = $in->{query}->cookie(
 227                 -name     => 'CGISESSID',
 228                 -value    => '',
 229                 -expires  => '',
 230                 -HttpOnly => 1,
 231             );
 232
 233             $template->param(
 234                 loginprompt => 1,
 235                 script_name => get_script_name(),
 236             );
 237
 238             print $in->{query}->header(
 239                 {
 240                     type              => 'text/html',
 241                     charset           => 'utf-8',
 242                     cookie            => $cookie,
 243                     'X-Frame-Options' => 'SAMEORIGIN'
 244                 }
 245               ),
 246               $template->output;
 247             safe_exit;
 248         }
 249     }
 250
 251     my $borrowernumber;
 252     if ($user) {
 253
 254         # It's possible for $user to be the borrowernumber if they don't have a
 255         # userid defined (and are logging in through some other method, such
 256         # as SSL certs against an email address)
 257         my $patron;
 258         $borrowernumber = getborrowernumber($user) if defined($user);
 259         if ( !defined($borrowernumber) && defined($user) ) {
 260             $patron = Koha::Patrons->find( $user );
 261             if ($patron) {
 262                 $borrowernumber = $user;
 263
 264                 # A bit of a hack, but I don't know there's a nicer way
 265                 # to do it.
 266                 $user = $patron->firstname . ' ' . $patron->surname;
 267             }
 268         } else {
 269             $patron = Koha::Patrons->find( $borrowernumber );
 270             # FIXME What to do if $patron does not exist?
 271         }
 272
 273         # user info
 274         $template->param( loggedinusername   => $user ); # OBSOLETE - Do not reuse this in template, use logged_in_user.userid instead
 275         $template->param( loggedinusernumber => $borrowernumber ); # FIXME Should be replaced with logged_in_user.borrowernumber
 276         $template->param( logged_in_user     => $patron );
 277         $template->param( sessionID          => $sessionID );
 278
 279         if ( $in->{'type'} eq 'opac' ) {
 280             require Koha::Virtualshelves;
 281             my $some_private_shelves = Koha::Virtualshelves->get_some_shelves(
 282                 {
 283                     borrowernumber => $borrowernumber,
 284                     category       => 1,
 285                 }
 286             );
 287             my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
 288                 {
 289                     category       => 2,
 290                 }
 291             );
 292             $template->param(
 293                 some_private_shelves => $some_private_shelves,
 294                 some_public_shelves  => $some_public_shelves,
 295             );
 296         }
 297
 298         my $all_perms = get_all_subpermissions();
 299
 300         my @flagroots = qw(circulate catalogue parameters borrowers permissions reserveforothers borrow
 301           editcatalogue updatecharges tools editauthorities serials reports acquisition clubs);
 302
 303         # We are going to use the $flags returned by checkauth
 304         # to create the template's parameters that will indicate
 305         # which menus the user can access.
 306         if ( $flags && $flags->{superlibrarian} == 1 ) {
 307             $template->param( CAN_user_circulate        => 1 );
 308             $template->param( CAN_user_catalogue        => 1 );
 309             $template->param( CAN_user_parameters       => 1 );
 310             $template->param( CAN_user_borrowers        => 1 );
 311             $template->param( CAN_user_permissions      => 1 );
 312             $template->param( CAN_user_reserveforothers => 1 );
 313             $template->param( CAN_user_editcatalogue    => 1 );
 314             $template->param( CAN_user_updatecharges    => 1 );
 315             $template->param( CAN_user_acquisition      => 1 );
 316             $template->param( CAN_user_tools            => 1 );
 317             $template->param( CAN_user_editauthorities  => 1 );
 318             $template->param( CAN_user_serials          => 1 );
 319             $template->param( CAN_user_reports          => 1 );
 320             $template->param( CAN_user_staffaccess      => 1 );
 321             $template->param( CAN_user_plugins          => 1 );
 322             $template->param( CAN_user_coursereserves   => 1 );
 323             $template->param( CAN_user_clubs            => 1 );
 324             $template->param( CAN_user_ill              => 1 );
 325             $template->param( CAN_user_stockrotation    => 1 );
 326
 327             foreach my $module ( keys %$all_perms ) {
 328                 foreach my $subperm ( keys %{ $all_perms->{$module} } ) {
 329                     $template->param( "CAN_user_${module}_${subperm}" => 1 );
 330                 }
 331             }
 332         }
 333
 334         if ($flags) {
 335             foreach my $module ( keys %$all_perms ) {
 336                 if ( defined($flags->{$module}) && $flags->{$module} == 1 ) {
 337                     foreach my $subperm ( keys %{ $all_perms->{$module} } ) {
 338                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 339                     }
 340                 } elsif ( ref( $flags->{$module} ) ) {
 341                     foreach my $subperm ( keys %{ $flags->{$module} } ) {
 342                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 343                     }
 344                 }
 345             }
 346         }
 347
 348         if ($flags) {
 349             foreach my $module ( keys %$flags ) {
 350                 if ( $flags->{$module} == 1 or ref( $flags->{$module} ) ) {
 351                     $template->param( "CAN_user_$module" => 1 );
 352                 }
 353             }
 354         }
 355
 356         # Logged-in opac search history
 357         # If the requested template is an opac one and opac search history is enabled
 358         if ( $in->{type} eq 'opac' && C4::Context->preference('EnableOpacSearchHistory') ) {
 359             my $dbh   = C4::Context->dbh;
 360             my $query = "SELECT COUNT(*) FROM search_history WHERE userid=?";
 361             my $sth   = $dbh->prepare($query);
 362             $sth->execute($borrowernumber);
 363
 364             # If at least one search has already been performed
 365             if ( $sth->fetchrow_array > 0 ) {
 366
 367                 # We show the link in opac
 368                 $template->param( EnableOpacSearchHistory => 1 );
 369             }
 370             if (C4::Context->preference('LoadSearchHistoryToTheFirstLoggedUser'))
 371             {
 372                 # And if there are searches performed when the user was not logged in,
 373                 # we add them to the logged-in search history
 374                 my @recentSearches = C4::Search::History::get_from_session( { cgi => $in->{'query'} } );
 375                 if (@recentSearches) {
 376                     my $dbh   = C4::Context->dbh;
 377                     my $query = q{
 378                         INSERT INTO search_history(userid, sessionid, query_desc, query_cgi, type,  total, time )
 379                         VALUES (?, ?, ?, ?, ?, ?, ?)
 380                     };
 381                     my $sth = $dbh->prepare($query);
 382                     $sth->execute( $borrowernumber,
 383                         $in->{query}->cookie("CGISESSID"),
 384                         $_->{query_desc},
 385                         $_->{query_cgi},
 386                         $_->{type} || 'biblio',
 387                         $_->{total},
 388                         $_->{time},
 389                     ) foreach @recentSearches;
 390
 391                     # clear out the search history from the session now that
 392                     # we've saved it to the database
 393                  }
 394               }
 395               C4::Search::History::set_to_session( { cgi => $in->{'query'}, search_history => [] } );
 396
 397         } elsif ( $in->{type} eq 'intranet' and C4::Context->preference('EnableSearchHistory') ) {
 398             $template->param( EnableSearchHistory => 1 );
 399         }
 400     }
 401     else {    # if this is an anonymous session, setup to display public lists...
 402
 403         # If shibboleth is enabled, and we're in an anonymous session, we should allow
 404         # the user to attempt login via shibboleth.
 405         if ($shib) {
 406             $template->param( shibbolethAuthentication => $shib,
 407                 shibbolethLoginUrl => login_shib_url( $in->{'query'} ),
 408             );
 409
 410             # If shibboleth is enabled and we have a shibboleth login attribute,
 411             # but we are in an anonymous session, then we clearly have an invalid
 412             # shibboleth koha account.
 413             if ($shib_login) {
 414                 $template->param( invalidShibLogin => '1' );
 415             }
 416         }
 417
 418         $template->param( sessionID => $sessionID );
 419
 420         if ( $in->{'type'} eq 'opac' ){
 421             require Koha::Virtualshelves;
 422             my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
 423                 {
 424                     category       => 2,
 425                 }
 426             );
 427             $template->param(
 428                 some_public_shelves  => $some_public_shelves,
 429             );
 430         }
 431     }
 432
 433     # Anonymous opac search history
 434     # If opac search history is enabled and at least one search has already been performed
 435     if ( C4::Context->preference('EnableOpacSearchHistory') ) {
 436         my @recentSearches = C4::Search::History::get_from_session( { cgi => $in->{'query'} } );
 437         if (@recentSearches) {
 438             $template->param( EnableOpacSearchHistory => 1 );
 439         }
 440     }
 441
 442     if ( C4::Context->preference('dateformat') ) {
 443         $template->param( dateformat => C4::Context->preference('dateformat') );
 444     }
 445
 446     $template->param(auth_forwarded_hash => scalar $in->{'query'}->param('auth_forwarded_hash'));
 447
 448     # these template parameters are set the same regardless of $in->{'type'}
 449
 450     # Set the using_https variable for templates
 451     # FIXME Under Plack the CGI->https method always returns 'OFF'
 452     my $https = $in->{query}->https();
 453     my $using_https = ( defined $https and $https ne 'OFF' ) ? 1 : 0;
 454
 455     my $minPasswordLength = C4::Context->preference('minPasswordLength');
 456     $minPasswordLength = 3 if not $minPasswordLength or $minPasswordLength < 3;
 457     $template->param(
 458         "BiblioDefaultView" . C4::Context->preference("BiblioDefaultView") => 1,
 459         EnhancedMessagingPreferences                                       => C4::Context->preference('EnhancedMessagingPreferences'),
 460         GoogleJackets                                                      => C4::Context->preference("GoogleJackets"),
 461         OpenLibraryCovers                                                  => C4::Context->preference("OpenLibraryCovers"),
 462         KohaAdminEmailAddress                                              => "" . C4::Context->preference("KohaAdminEmailAddress"),
 463         LoginBranchcode => ( C4::Context->userenv ? C4::Context->userenv->{"branch"}    : undef ),
 464         LoginFirstname  => ( C4::Context->userenv ? C4::Context->userenv->{"firstname"} : "Bel" ),
 465         LoginSurname    => C4::Context->userenv ? C4::Context->userenv->{"surname"}      : "Inconnu",
 466         emailaddress    => C4::Context->userenv ? C4::Context->userenv->{"emailaddress"} : undef,
 467         TagsEnabled     => C4::Context->preference("TagsEnabled"),
 468         hide_marc       => C4::Context->preference("hide_marc"),
 469         item_level_itypes  => C4::Context->preference('item-level_itypes'),
 470         patronimages       => C4::Context->preference("patronimages"),
 471         singleBranchMode   => ( Koha::Libraries->search->count == 1 ),
 472         XSLTDetailsDisplay => C4::Context->preference("XSLTDetailsDisplay"),
 473         XSLTResultsDisplay => C4::Context->preference("XSLTResultsDisplay"),
 474         using_https        => $using_https,
 475         noItemTypeImages   => C4::Context->preference("noItemTypeImages"),
 476         marcflavour        => C4::Context->preference("marcflavour"),
 477         OPACBaseURL        => C4::Context->preference('OPACBaseURL'),
 478         minPasswordLength  => $minPasswordLength,
 479     );
 480     if ( $in->{'type'} eq "intranet" ) {
 481         $template->param(
 482             AmazonCoverImages                                                          => C4::Context->preference("AmazonCoverImages"),
 483             AutoLocation                                                               => C4::Context->preference("AutoLocation"),
 484             "BiblioDefaultView" . C4::Context->preference("IntranetBiblioDefaultView") => 1,
 485             PatronAutoComplete                                                       => C4::Context->preference("PatronAutoComplete"),
 486             FRBRizeEditions                                                            => C4::Context->preference("FRBRizeEditions"),
 487             IndependentBranches                                                        => C4::Context->preference("IndependentBranches"),
 488             IntranetNav                                                                => C4::Context->preference("IntranetNav"),
 489             IntranetmainUserblock                                                      => C4::Context->preference("IntranetmainUserblock"),
 490             LibraryName                                                                => C4::Context->preference("LibraryName"),
 491             LoginBranchname                                                            => ( C4::Context->userenv ? C4::Context->userenv->{"branchname"} : undef ),
 492             advancedMARCEditor                                                         => C4::Context->preference("advancedMARCEditor"),
 493             canreservefromotherbranches                                                => C4::Context->preference('canreservefromotherbranches'),
 494             intranetcolorstylesheet                                                    => C4::Context->preference("intranetcolorstylesheet"),
 495             IntranetFavicon                                                            => C4::Context->preference("IntranetFavicon"),
 496             intranetreadinghistory                                                     => C4::Context->preference("intranetreadinghistory"),
 497             intranetstylesheet                                                         => C4::Context->preference("intranetstylesheet"),
 498             IntranetUserCSS                                                            => C4::Context->preference("IntranetUserCSS"),
 499             IntranetUserJS                                                             => C4::Context->preference("IntranetUserJS"),
 500             intranetbookbag                                                            => C4::Context->preference("intranetbookbag"),
 501             suggestion                                                                 => C4::Context->preference("suggestion"),
 502             virtualshelves                                                             => C4::Context->preference("virtualshelves"),
 503             StaffSerialIssueDisplayCount                                               => C4::Context->preference("StaffSerialIssueDisplayCount"),
 504             EasyAnalyticalRecords                                                      => C4::Context->preference('EasyAnalyticalRecords'),
 505             LocalCoverImages                                                           => C4::Context->preference('LocalCoverImages'),
 506             OPACLocalCoverImages                                                       => C4::Context->preference('OPACLocalCoverImages'),
 507             AllowMultipleCovers                                                        => C4::Context->preference('AllowMultipleCovers'),
 508             EnableBorrowerFiles                                                        => C4::Context->preference('EnableBorrowerFiles'),
 509             UseKohaPlugins                                                             => C4::Context->preference('UseKohaPlugins'),
 510             UseCourseReserves                                                          => C4::Context->preference("UseCourseReserves"),
 511             useDischarge                                                               => C4::Context->preference('useDischarge'),
 512             pending_checkout_notes                                                     => scalar Koha::Checkouts->search({ noteseen => 0 }),
 513         );
 514     }
 515     else {
 516         warn "template type should be OPAC, here it is=[" . $in->{'type'} . "]" unless ( $in->{'type'} eq 'opac' );
 517
 518         #TODO : replace LibraryName syspref with 'system name', and remove this html processing
 519         my $LibraryNameTitle = C4::Context->preference("LibraryName");
 520         $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
 521         $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
 522
 523         # clean up the busc param in the session
 524         # if the page is not opac-detail and not the "add to list" page
 525         # and not the "edit comments" page
 526         if ( C4::Context->preference("OpacBrowseResults")
 527             && $in->{'template_name'} =~ /opac-(.+)\.(?:tt|tmpl)$/ ) {
 528             my $pagename = $1;
 529             unless ( $pagename =~ /^(?:MARC|ISBD)?detail$/
 530                 or $pagename =~ /^addbybiblionumber$/
 531                 or $pagename =~ /^review$/ ) {
 532                 my $sessionSearch = get_session( $sessionID || $in->{'query'}->cookie("CGISESSID") );
 533                 $sessionSearch->clear( ["busc"] ) if ( $sessionSearch->param("busc") );
 534             }
 535         }
 536
 537         # variables passed from CGI: opac_css_override and opac_search_limits.
 538         my $opac_search_limit   = $ENV{'OPAC_SEARCH_LIMIT'};
 539         my $opac_limit_override = $ENV{'OPAC_LIMIT_OVERRIDE'};
 540         my $opac_name           = '';
 541         if (
 542             ( $opac_limit_override && $opac_search_limit && $opac_search_limit =~ /branch:([\w-]+)/ ) ||
 543             ( $in->{'query'}->param('limit') && $in->{'query'}->param('limit') =~ /branch:([\w-]+)/ ) ||
 544             ( $in->{'query'}->param('multibranchlimit') && $in->{'query'}->param('multibranchlimit') =~ /multibranchlimit-(\w+)/ )
 545           ) {
 546             $opac_name = $1;    # opac_search_limit is a branch, so we use it.
 547         } elsif ( $in->{'query'}->param('multibranchlimit') ) {
 548             $opac_name = $in->{'query'}->param('multibranchlimit');
 549         } elsif ( C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv && C4::Context->userenv->{'branch'} ) {
 550             $opac_name = C4::Context->userenv->{'branch'};
 551         }
 552
 553         my @search_groups = Koha::Library::Groups->get_search_groups({ interface => 'opac' });
 554         $template->param(
 555             AnonSuggestions                       => "" . C4::Context->preference("AnonSuggestions"),
 556             LibrarySearchGroups                   => \@search_groups,
 557             opac_name                             => $opac_name,
 558             LibraryName                           => "" . C4::Context->preference("LibraryName"),
 559             LibraryNameTitle                      => "" . $LibraryNameTitle,
 560             LoginBranchname                       => C4::Context->userenv ? C4::Context->userenv->{"branchname"} : "",
 561             OPACAmazonCoverImages                 => C4::Context->preference("OPACAmazonCoverImages"),
 562             OPACFRBRizeEditions                   => C4::Context->preference("OPACFRBRizeEditions"),
 563             OpacHighlightedWords                  => C4::Context->preference("OpacHighlightedWords"),
 564             OPACShelfBrowser                      => "" . C4::Context->preference("OPACShelfBrowser"),
 565             OPACURLOpenInNewWindow                => "" . C4::Context->preference("OPACURLOpenInNewWindow"),
 566             OPACUserCSS                           => "" . C4::Context->preference("OPACUserCSS"),
 567             OpacAuthorities                       => C4::Context->preference("OpacAuthorities"),
 568             opac_css_override                     => $ENV{'OPAC_CSS_OVERRIDE'},
 569             opac_search_limit                     => $opac_search_limit,
 570             opac_limit_override                   => $opac_limit_override,
 571             OpacBrowser                           => C4::Context->preference("OpacBrowser"),
 572             OpacCloud                             => C4::Context->preference("OpacCloud"),
 573             OpacKohaUrl                           => C4::Context->preference("OpacKohaUrl"),
 574             OpacMainUserBlock                     => "" . C4::Context->preference("OpacMainUserBlock"),
 575             OpacNav                               => "" . C4::Context->preference("OpacNav"),
 576             OpacNavBottom                         => "" . C4::Context->preference("OpacNavBottom"),
 577             OpacPasswordChange                    => C4::Context->preference("OpacPasswordChange"),
 578             OPACPatronDetails                     => C4::Context->preference("OPACPatronDetails"),
 579             OPACPrivacy                           => C4::Context->preference("OPACPrivacy"),
 580             OPACFinesTab                          => C4::Context->preference("OPACFinesTab"),
 581             OpacTopissue                          => C4::Context->preference("OpacTopissue"),
 582             RequestOnOpac                         => C4::Context->preference("RequestOnOpac"),
 583             'Version'                             => C4::Context->preference('Version'),
 584             hidelostitems                         => C4::Context->preference("hidelostitems"),
 585             mylibraryfirst                        => ( C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv ) ? C4::Context->userenv->{'branch'} : '',
 586             opacbookbag                           => "" . C4::Context->preference("opacbookbag"),
 587             opaccredits                           => "" . C4::Context->preference("opaccredits"),
 588             OpacFavicon                           => C4::Context->preference("OpacFavicon"),
 589             opacheader                            => "" . C4::Context->preference("opacheader"),
 590             opaclanguagesdisplay                  => "" . C4::Context->preference("opaclanguagesdisplay"),
 591             opacreadinghistory                    => C4::Context->preference("opacreadinghistory"),
 592             OPACUserJS                            => C4::Context->preference("OPACUserJS"),
 593             opacuserlogin                         => "" . C4::Context->preference("opacuserlogin"),
 594             OpenLibrarySearch                     => C4::Context->preference("OpenLibrarySearch"),
 595             ShowReviewer                          => C4::Context->preference("ShowReviewer"),
 596             ShowReviewerPhoto                     => C4::Context->preference("ShowReviewerPhoto"),
 597             suggestion                            => "" . C4::Context->preference("suggestion"),
 598             virtualshelves                        => "" . C4::Context->preference("virtualshelves"),
 599             OPACSerialIssueDisplayCount           => C4::Context->preference("OPACSerialIssueDisplayCount"),
 600             OPACXSLTDetailsDisplay                => C4::Context->preference("OPACXSLTDetailsDisplay"),
 601             OPACXSLTResultsDisplay                => C4::Context->preference("OPACXSLTResultsDisplay"),
 602             SyndeticsClientCode                   => C4::Context->preference("SyndeticsClientCode"),
 603             SyndeticsEnabled                      => C4::Context->preference("SyndeticsEnabled"),
 604             SyndeticsCoverImages                  => C4::Context->preference("SyndeticsCoverImages"),
 605             SyndeticsTOC                          => C4::Context->preference("SyndeticsTOC"),
 606             SyndeticsSummary                      => C4::Context->preference("SyndeticsSummary"),
 607             SyndeticsEditions                     => C4::Context->preference("SyndeticsEditions"),
 608             SyndeticsExcerpt                      => C4::Context->preference("SyndeticsExcerpt"),
 609             SyndeticsReviews                      => C4::Context->preference("SyndeticsReviews"),
 610             SyndeticsAuthorNotes                  => C4::Context->preference("SyndeticsAuthorNotes"),
 611             SyndeticsAwards                       => C4::Context->preference("SyndeticsAwards"),
 612             SyndeticsSeries                       => C4::Context->preference("SyndeticsSeries"),
 613             SyndeticsCoverImageSize               => C4::Context->preference("SyndeticsCoverImageSize"),
 614             OPACLocalCoverImages                  => C4::Context->preference("OPACLocalCoverImages"),
 615             PatronSelfRegistration                => C4::Context->preference("PatronSelfRegistration"),
 616             PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
 617             useDischarge                 => C4::Context->preference('useDischarge'),
 618         );
 619
 620         $template->param( OpacPublic => '1' ) if ( $user || C4::Context->preference("OpacPublic") );
 621     }
 622
 623     # Check if we were asked using parameters to force a specific language
 624     if ( defined $in->{'query'}->param('language') ) {
 625
 626         # Extract the language, let C4::Languages::getlanguage choose
 627         # what to do
 628         my $language = C4::Languages::getlanguage( $in->{'query'} );
 629         my $languagecookie = C4::Templates::getlanguagecookie( $in->{'query'}, $language );
 630         if ( ref $cookie eq 'ARRAY' ) {
 631             push @{$cookie}, $languagecookie;
 632         } else {
 633             $cookie = [ $cookie, $languagecookie ];
 634         }
 635     }
 636
 637     return ( $template, $borrowernumber, $cookie, $flags );
 638 }
 639
 640 =head2 checkauth
 641
 642   ($userid, $cookie, $sessionID) = &checkauth($query, $noauth, $flagsrequired, $type);
 643
 644 Verifies that the user is authorized to run this script.  If
 645 the user is authorized, a (userid, cookie, session-id, flags)
 646 quadruple is returned.  If the user is not authorized but does
 647 not have the required privilege (see $flagsrequired below), it
 648 displays an error page and exits.  Otherwise, it displays the
 649 login page and exits.
 650
 651 Note that C<&checkauth> will return if and only if the user
 652 is authorized, so it should be called early on, before any
 653 unfinished operations (e.g., if you've opened a file, then
 654 C<&checkauth> won't close it for you).
 655
 656 C<$query> is the CGI object for the script calling C<&checkauth>.
 657
 658 The C<$noauth> argument is optional. If it is set, then no
 659 authorization is required for the script.
 660
 661 C<&checkauth> fetches user and session information from C<$query> and
 662 ensures that the user is authorized to run scripts that require
 663 authorization.
 664
 665 The C<$flagsrequired> argument specifies the required privileges
 666 the user must have if the username and password are correct.
 667 It should be specified as a reference-to-hash; keys in the hash
 668 should be the "flags" for the user, as specified in the Members
 669 intranet module. Any key specified must correspond to a "flag"
 670 in the userflags table. E.g., { circulate => 1 } would specify
 671 that the user must have the "circulate" privilege in order to
 672 proceed. To make sure that access control is correct, the
 673 C<$flagsrequired> parameter must be specified correctly.
 674
 675 Koha also has a concept of sub-permissions, also known as
 676 granular permissions.  This makes the value of each key
 677 in the C<flagsrequired> hash take on an additional
 678 meaning, i.e.,
 679
 680  1
 681
 682 The user must have access to all subfunctions of the module
 683 specified by the hash key.
 684
 685  *
 686
 687 The user must have access to at least one subfunction of the module
 688 specified by the hash key.
 689
 690  specific permission, e.g., 'export_catalog'
 691
 692 The user must have access to the specific subfunction list, which
 693 must correspond to a row in the permissions table.
 694
 695 The C<$type> argument specifies whether the template should be
 696 retrieved from the opac or intranet directory tree.  "opac" is
 697 assumed if it is not specified; however, if C<$type> is specified,
 698 "intranet" is assumed if it is not "opac".
 699
 700 If C<$query> does not have a valid session ID associated with it
 701 (i.e., the user has not logged in) or if the session has expired,
 702 C<&checkauth> presents the user with a login page (from the point of
 703 view of the original script, C<&checkauth> does not return). Once the
 704 user has authenticated, C<&checkauth> restarts the original script
 705 (this time, C<&checkauth> returns).
 706
 707 The login page is provided using a HTML::Template, which is set in the
 708 systempreferences table or at the top of this file. The variable C<$type>
 709 selects which template to use, either the opac or the intranet
 710 authentification template.
 711
 712 C<&checkauth> returns a user ID, a cookie, and a session ID. The
 713 cookie should be sent back to the browser; it verifies that the user
 714 has authenticated.
 715
 716 =cut
 717
 718 sub _version_check {
 719     my $type  = shift;
 720     my $query = shift;
 721     my $version;
 722
 723     # If version syspref is unavailable, it means Koha is being installed,
 724     # and so we must redirect to OPAC maintenance page or to the WebInstaller
 725     # also, if OpacMaintenance is ON, OPAC should redirect to maintenance
 726     if ( C4::Context->preference('OpacMaintenance') && $type eq 'opac' ) {
 727         warn "OPAC Install required, redirecting to maintenance";
 728         print $query->redirect("/cgi-bin/koha/maintenance.pl");
 729         safe_exit;
 730     }
 731     unless ( $version = C4::Context->preference('Version') ) {    # assignment, not comparison
 732         if ( $type ne 'opac' ) {
 733             warn "Install required, redirecting to Installer";
 734             print $query->redirect("/cgi-bin/koha/installer/install.pl");
 735         } else {
 736             warn "OPAC Install required, redirecting to maintenance";
 737             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 738         }
 739         safe_exit;
 740     }
 741
 742     # check that database and koha version are the same
 743     # there is no DB version, it's a fresh install,
 744     # go to web installer
 745     # there is a DB version, compare it to the code version
 746     my $kohaversion = Koha::version();
 747
 748     # remove the 3 last . to have a Perl number
 749     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
 750     $debug and print STDERR "kohaversion : $kohaversion\n";
 751     if ( $version < $kohaversion ) {
 752         my $warning = "Database update needed, redirecting to %s. Database is $version and Koha is $kohaversion";
 753         if ( $type ne 'opac' ) {
 754             warn sprintf( $warning, 'Installer' );
 755             print $query->redirect("/cgi-bin/koha/installer/install.pl?step=1&op=updatestructure");
 756         } else {
 757             warn sprintf( "OPAC: " . $warning, 'maintenance' );
 758             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 759         }
 760         safe_exit;
 761     }
 762 }
 763
 764 sub _session_log {
 765     (@_) or return 0;
 766     open my $fh, '>>', "/tmp/sessionlog" or warn "ERROR: Cannot append to /tmp/sessionlog";
 767     printf $fh join( "\n", @_ );
 768     close $fh;
 769 }
 770
 771 sub _timeout_syspref {
 772     my $timeout = C4::Context->preference('timeout') || 600;
 773
 774     # value in days, convert in seconds
 775     if ( $timeout =~ /(\d+)[dD]/ ) {
 776         $timeout = $1 * 86400;
 777     }
 778     return $timeout;
 779 }
 780
 781 sub checkauth {
 782     my $query = shift;
 783     $debug and warn "Checking Auth";
 784
 785     # Get shibboleth login attribute
 786     my $shib = C4::Context->config('useshibboleth') && shib_ok();
 787     my $shib_login = $shib ? get_login_shib() : undef;
 788
 789     # $authnotrequired will be set for scripts which will run without authentication
 790     my $authnotrequired = shift;
 791     my $flagsrequired   = shift;
 792     my $type            = shift;
 793     my $emailaddress    = shift;
 794     $type = 'opac' unless $type;
 795
 796     my $dbh     = C4::Context->dbh;
 797     my $timeout = _timeout_syspref();
 798
 799     _version_check( $type, $query );
 800
 801     # state variables
 802     my $loggedin = 0;
 803     my %info;
 804     my ( $userid, $cookie, $sessionID, $flags );
 805     my $logout = $query->param('logout.x');
 806
 807     my $anon_search_history;
 808     my $cas_ticket = '';
 809     # This parameter is the name of the CAS server we want to authenticate against,
 810     # when using authentication against multiple CAS servers, as configured in Auth_cas_servers.yaml
 811     my $casparam = $query->param('cas');
 812     my $q_userid = $query->param('userid') // '';
 813
 814     my $session;
 815
 816     # Basic authentication is incompatible with the use of Shibboleth,
 817     # as Shibboleth may return REMOTE_USER as a Shibboleth attribute,
 818     # and it may not be the attribute we want to use to match the koha login.
 819     #
 820     # Also, do not consider an empty REMOTE_USER.
 821     #
 822     # Finally, after those tests, we can assume (although if it would be better with
 823     # a syspref) that if we get a REMOTE_USER, that's from basic authentication,
 824     # and we can affect it to $userid.
 825     if ( !$shib and defined( $ENV{'REMOTE_USER'} ) and $ENV{'REMOTE_USER'} ne '' and $userid = $ENV{'REMOTE_USER'} ) {
 826
 827         # Using Basic Authentication, no cookies required
 828         $cookie = $query->cookie(
 829             -name     => 'CGISESSID',
 830             -value    => '',
 831             -expires  => '',
 832             -HttpOnly => 1,
 833         );
 834         $loggedin = 1;
 835     }
 836     elsif ( $emailaddress) {
 837         # the Google OpenID Connect passes an email address
 838     }
 839     elsif ( $sessionID = $query->cookie("CGISESSID") )
 840     {    # assignment, not comparison
 841         $session = get_session($sessionID);
 842         C4::Context->_new_userenv($sessionID);
 843         my ( $ip, $lasttime, $sessiontype );
 844         my $s_userid = '';
 845         if ($session) {
 846             $s_userid = $session->param('id') // '';
 847             C4::Context->set_userenv(
 848                 $session->param('number'),       $s_userid,
 849                 $session->param('cardnumber'),   $session->param('firstname'),
 850                 $session->param('surname'),      $session->param('branch'),
 851                 $session->param('branchname'),   $session->param('flags'),
 852                 $session->param('emailaddress'), $session->param('branchprinter'),
 853                 $session->param('shibboleth')
 854             );
 855             C4::Context::set_shelves_userenv( 'bar', $session->param('barshelves') );
 856             C4::Context::set_shelves_userenv( 'pub', $session->param('pubshelves') );
 857             C4::Context::set_shelves_userenv( 'tot', $session->param('totshelves') );
 858             $debug and printf STDERR "AUTH_SESSION: (%s)\t%s %s - %s\n", map { $session->param($_) } qw(cardnumber firstname surname branch);
 859             $ip          = $session->param('ip');
 860             $lasttime    = $session->param('lasttime');
 861             $userid      = $s_userid;
 862             $sessiontype = $session->param('sessiontype') || '';
 863         }
 864         if ( ( $query->param('koha_login_context') && ( $q_userid ne $s_userid ) )
 865             || ( $cas && $query->param('ticket') && !C4::Context->userenv->{'id'} )
 866             || ( $shib && $shib_login && !$logout && !C4::Context->userenv->{'id'} )
 867         ) {
 868
 869             #if a user enters an id ne to the id in the current session, we need to log them in...
 870             #first we need to clear the anonymous session...
 871             $debug and warn "query id = $q_userid but session id = $s_userid";
 872             $anon_search_history = $session->param('search_history');
 873             $session->delete();
 874             $session->flush;
 875             C4::Context->_unset_userenv($sessionID);
 876             $sessionID = undef;
 877             $userid    = undef;
 878         }
 879         elsif ($logout) {
 880
 881             # voluntary logout the user
 882             # check wether the user was using their shibboleth session or a local one
 883             my $shibSuccess = C4::Context->userenv->{'shibboleth'};
 884             $session->delete();
 885             $session->flush;
 886             C4::Context->_unset_userenv($sessionID);
 887
 888             #_session_log(sprintf "%20s from %16s logged out at %30s (manually).\n", $userid,$ip,(strftime "%c",localtime));
 889             $sessionID = undef;
 890             $userid    = undef;
 891
 892             if ($cas and $caslogout) {
 893                 logout_cas($query, $type);
 894             }
 895
 896             # If we are in a shibboleth session (shibboleth is enabled, a shibboleth match attribute is set and matches koha matchpoint)
 897             if ( $shib and $shib_login and $shibSuccess) {
 898                 logout_shib($query);
 899             }
 900         }
 901         elsif ( !$lasttime || ( $lasttime < time() - $timeout ) ) {
 902
 903             # timed logout
 904             $info{'timed_out'} = 1;
 905             if ($session) {
 906                 $session->delete();
 907                 $session->flush;
 908             }
 909             C4::Context->_unset_userenv($sessionID);
 910
 911             #_session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,(strftime "%c",localtime));
 912             $userid    = undef;
 913             $sessionID = undef;
 914         }
 915         elsif ( C4::Context->preference('SessionRestrictionByIP') && $ip ne $ENV{'REMOTE_ADDR'} ) {
 916
 917             # Different ip than originally logged in from
 918             $info{'oldip'}        = $ip;
 919             $info{'newip'}        = $ENV{'REMOTE_ADDR'};
 920             $info{'different_ip'} = 1;
 921             $session->delete();
 922             $session->flush;
 923             C4::Context->_unset_userenv($sessionID);
 924
 925             #_session_log(sprintf "%20s from %16s logged out at %30s (ip changed to %16s).\n", $userid,$ip,(strftime "%c",localtime), $info{'newip'});
 926             $sessionID = undef;
 927             $userid    = undef;
 928         }
 929         else {
 930             $cookie = $query->cookie(
 931                 -name     => 'CGISESSID',
 932                 -value    => $session->id,
 933                 -HttpOnly => 1
 934             );
 935             $session->param( 'lasttime', time() );
 936             unless ( $sessiontype && $sessiontype eq 'anon' ) {    #if this is an anonymous session, we want to update the session, but not behave as if they are logged in...
 937                 $flags = haspermission( $userid, $flagsrequired );
 938                 if ($flags) {
 939                     $loggedin = 1;
 940                 } else {
 941                     $info{'nopermission'} = 1;
 942                 }
 943             }
 944         }
 945     }
 946     unless ( $userid || $sessionID ) {
 947         #we initiate a session prior to checking for a username to allow for anonymous sessions...
 948         my $session = get_session("") or die "Auth ERROR: Cannot get_session()";
 949
 950         # Save anonymous search history in new session so it can be retrieved
 951         # by get_template_and_user to store it in user's search history after
 952         # a successful login.
 953         if ($anon_search_history) {
 954             $session->param( 'search_history', $anon_search_history );
 955         }
 956
 957         $sessionID = $session->id;
 958         C4::Context->_new_userenv($sessionID);
 959         $cookie = $query->cookie(
 960             -name     => 'CGISESSID',
 961             -value    => $session->id,
 962             -HttpOnly => 1
 963         );
 964         my $pki_field = C4::Context->preference('AllowPKIAuth');
 965         if ( !defined($pki_field) ) {
 966             print STDERR "ERROR: Missing system preference AllowPKIAuth.\n";
 967             $pki_field = 'None';
 968         }
 969         if ( ( $cas && $query->param('ticket') )
 970             || $q_userid
 971             || ( $shib && $shib_login )
 972             || $pki_field ne 'None'
 973             || $emailaddress )
 974         {
 975             my $password    = $query->param('password');
 976             my $shibSuccess = 0;
 977             my ( $return, $cardnumber );
 978
 979             # If shib is enabled and we have a shib login, does the login match a valid koha user
 980             if ( $shib && $shib_login ) {
 981                 my $retuserid;
 982
 983                 # Do not pass password here, else shib will not be checked in checkpw.
 984                 ( $return, $cardnumber, $retuserid ) = checkpw( $dbh, $q_userid, undef, $query );
 985                 $userid      = $retuserid;
 986                 $shibSuccess = $return;
 987                 $info{'invalidShibLogin'} = 1 unless ($return);
 988             }
 989
 990             # If shib login and match were successful, skip further login methods
 991             unless ($shibSuccess) {
 992                 if ( $cas && $query->param('ticket') ) {
 993                     my $retuserid;
 994                     ( $return, $cardnumber, $retuserid, $cas_ticket ) =
 995                       checkpw( $dbh, $userid, $password, $query, $type );
 996                     $userid = $retuserid;
 997                     $info{'invalidCasLogin'} = 1 unless ($return);
 998                 }
 999
1000                 elsif ( $emailaddress ) {
1001                     my $value = $emailaddress;
1002
1003                     # If we're looking up the email, there's a chance that the person
1004                     # doesn't have a userid. So if there is none, we pass along the
1005                     # borrower number, and the bits of code that need to know the user
1006                     # ID will have to be smart enough to handle that.
1007                     my $patrons = Koha::Patrons->search({ email => $value });
1008                     if ($patrons->count) {
1009
1010                         # First the userid, then the borrowernum
1011                         my $patron = $patrons->next;
1012                         $value = $patron->userid || $patron->borrowernumber;
1013                     } else {
1014                         undef $value;
1015                     }
1016                     $return = $value ? 1 : 0;
1017                     $userid = $value;
1018                 }
1019
1020                 elsif (
1021                     ( $pki_field eq 'Common Name' && $ENV{'SSL_CLIENT_S_DN_CN'} )
1022                     || ( $pki_field eq 'emailAddress'
1023                         && $ENV{'SSL_CLIENT_S_DN_Email'} )
1024                   )
1025                 {
1026                     my $value;
1027                     if ( $pki_field eq 'Common Name' ) {
1028                         $value = $ENV{'SSL_CLIENT_S_DN_CN'};
1029                     }
1030                     elsif ( $pki_field eq 'emailAddress' ) {
1031                         $value = $ENV{'SSL_CLIENT_S_DN_Email'};
1032
1033                         # If we're looking up the email, there's a chance that the person
1034                         # doesn't have a userid. So if there is none, we pass along the
1035                         # borrower number, and the bits of code that need to know the user
1036                         # ID will have to be smart enough to handle that.
1037                         my $patrons = Koha::Patrons->search({ email => $value });
1038                         if ($patrons->count) {
1039
1040                             # First the userid, then the borrowernum
1041                             my $patron = $patrons->next;
1042                             $value = $patron->userid || $patron->borrowernumber;
1043                         } else {
1044                             undef $value;
1045                         }
1046                     }
1047
1048                     $return = $value ? 1 : 0;
1049                     $userid = $value;
1050
1051                 }
1052                 else {
1053                     my $retuserid;
1054                     ( $return, $cardnumber, $retuserid, $cas_ticket ) =
1055                       checkpw( $dbh, $q_userid, $password, $query, $type );
1056                     $userid = $retuserid if ($retuserid);
1057                     $info{'invalid_username_or_password'} = 1 unless ($return);
1058                 }
1059             }
1060
1061             # $return: 1 = valid user
1062             if ($return) {
1063
1064                 #_session_log(sprintf "%20s from %16s logged in  at %30s.\n", $userid,$ENV{'REMOTE_ADDR'},(strftime '%c', localtime));
1065                 if ( $flags = haspermission( $userid, $flagsrequired ) ) {
1066                     $loggedin = 1;
1067                 }
1068                 else {
1069                     $info{'nopermission'} = 1;
1070                     C4::Context->_unset_userenv($sessionID);
1071                 }
1072                 my ( $borrowernumber, $firstname, $surname, $userflags,
1073                     $branchcode, $branchname, $branchprinter, $emailaddress );
1074
1075                 if ( $return == 1 ) {
1076                     my $select = "
1077                     SELECT borrowernumber, firstname, surname, flags, borrowers.branchcode,
1078                     branches.branchname    as branchname,
1079                     branches.branchprinter as branchprinter,
1080                     email
1081                     FROM borrowers
1082                     LEFT JOIN branches on borrowers.branchcode=branches.branchcode
1083                     ";
1084                     my $sth = $dbh->prepare("$select where userid=?");
1085                     $sth->execute($userid);
1086                     unless ( $sth->rows ) {
1087                         $debug and print STDERR "AUTH_1: no rows for userid='$userid'\n";
1088                         $sth = $dbh->prepare("$select where cardnumber=?");
1089                         $sth->execute($cardnumber);
1090
1091                         unless ( $sth->rows ) {
1092                             $debug and print STDERR "AUTH_2a: no rows for cardnumber='$cardnumber'\n";
1093                             $sth->execute($userid);
1094                             unless ( $sth->rows ) {
1095                                 $debug and print STDERR "AUTH_2b: no rows for userid='$userid' AS cardnumber\n";
1096                             }
1097                         }
1098                     }
1099                     if ( $sth->rows ) {
1100                         ( $borrowernumber, $firstname, $surname, $userflags,
1101                             $branchcode, $branchname, $branchprinter, $emailaddress ) = $sth->fetchrow;
1102                         $debug and print STDERR "AUTH_3 results: " .
1103                           "$cardnumber,$borrowernumber,$userid,$firstname,$surname,$userflags,$branchcode,$emailaddress\n";
1104                     } else {
1105                         print STDERR "AUTH_3: no results for userid='$userid', cardnumber='$cardnumber'.\n";
1106                     }
1107
1108                     # launch a sequence to check if we have a ip for the branch, i
1109                     # if we have one we replace the branchcode of the userenv by the branch bound in the ip.
1110
1111                     my $ip = $ENV{'REMOTE_ADDR'};
1112
1113                     # if they specify at login, use that
1114                     if ( $query->param('branch') ) {
1115                         $branchcode = $query->param('branch');
1116                         my $library = Koha::Libraries->find($branchcode);
1117                         $branchname = $library? $library->branchname: '';
1118                     }
1119                     my $branches = { map { $_->branchcode => $_->unblessed } Koha::Libraries->search };
1120                     if ( $type ne 'opac' and C4::Context->boolean_preference('AutoLocation') ) {
1121
1122                         # we have to check they are coming from the right ip range
1123                         my $domain = $branches->{$branchcode}->{'branchip'};
1124                         $domain =~ s|\.\*||g;
1125                         if ( $ip !~ /^$domain/ ) {
1126                             $loggedin = 0;
1127                             $cookie = $query->cookie(
1128                                 -name     => 'CGISESSID',
1129                                 -value    => '',
1130                                 -HttpOnly => 1
1131                             );
1132                             $info{'wrongip'} = 1;
1133                         }
1134                     }
1135
1136                     foreach my $br ( keys %$branches ) {
1137
1138                         #     now we work with the treatment of ip
1139                         my $domain = $branches->{$br}->{'branchip'};
1140                         if ( $domain && $ip =~ /^$domain/ ) {
1141                             $branchcode = $branches->{$br}->{'branchcode'};
1142
1143                             # new op dev : add the branchprinter and branchname in the cookie
1144                             $branchprinter = $branches->{$br}->{'branchprinter'};
1145                             $branchname    = $branches->{$br}->{'branchname'};
1146                         }
1147                     }
1148                     $session->param( 'number',       $borrowernumber );
1149                     $session->param( 'id',           $userid );
1150                     $session->param( 'cardnumber',   $cardnumber );
1151                     $session->param( 'firstname',    $firstname );
1152                     $session->param( 'surname',      $surname );
1153                     $session->param( 'branch',       $branchcode );
1154                     $session->param( 'branchname',   $branchname );
1155                     $session->param( 'flags',        $userflags );
1156                     $session->param( 'emailaddress', $emailaddress );
1157                     $session->param( 'ip',           $session->remote_addr() );
1158                     $session->param( 'lasttime',     time() );
1159                     $session->param( 'interface',    $type);
1160                     $session->param( 'shibboleth',   $shibSuccess );
1161                     $debug and printf STDERR "AUTH_4: (%s)\t%s %s - %s\n", map { $session->param($_) } qw(cardnumber firstname surname branch);
1162                 }
1163                 $session->param('cas_ticket', $cas_ticket) if $cas_ticket;
1164                 C4::Context->set_userenv(
1165                     $session->param('number'),       $session->param('id'),
1166                     $session->param('cardnumber'),   $session->param('firstname'),
1167                     $session->param('surname'),      $session->param('branch'),
1168                     $session->param('branchname'),   $session->param('flags'),
1169                     $session->param('emailaddress'), $session->param('branchprinter'),
1170                     $session->param('shibboleth')
1171                 );
1172
1173             }
1174             # $return: 0 = invalid user
1175             # reset to anonymous session
1176             else {
1177                 $debug and warn "Login failed, resetting anonymous session...";
1178                 if ($userid) {
1179                     $info{'invalid_username_or_password'} = 1;
1180                     C4::Context->_unset_userenv($sessionID);
1181                 }
1182                 $session->param( 'lasttime', time() );
1183                 $session->param( 'ip',       $session->remote_addr() );
1184                 $session->param( 'sessiontype', 'anon' );
1185                 $session->param( 'interface', $type);
1186             }
1187         }    # END if ( $q_userid
1188         elsif ( $type eq "opac" ) {
1189
1190             # if we are here this is an anonymous session; add public lists to it and a few other items...
1191             # anonymous sessions are created only for the OPAC
1192             $debug and warn "Initiating an anonymous session...";
1193
1194             # setting a couple of other session vars...
1195             $session->param( 'ip',          $session->remote_addr() );
1196             $session->param( 'lasttime',    time() );
1197             $session->param( 'sessiontype', 'anon' );
1198             $session->param( 'interface', $type);
1199         }
1200     }    # END unless ($userid)
1201
1202     # finished authentification, now respond
1203     if ( $loggedin || $authnotrequired )
1204     {
1205         # successful login
1206         unless ($cookie) {
1207             $cookie = $query->cookie(
1208                 -name     => 'CGISESSID',
1209                 -value    => '',
1210                 -HttpOnly => 1
1211             );
1212         }
1213
1214         track_login_daily( $userid );
1215
1216         return ( $userid, $cookie, $sessionID, $flags );
1217     }
1218
1219     #
1220     #
1221     # AUTH rejected, show the login/password template, after checking the DB.
1222     #
1223     #
1224
1225     # get the inputs from the incoming query
1226     my @inputs = ();
1227     foreach my $name ( param $query) {
1228         (next) if ( $name eq 'userid' || $name eq 'password' || $name eq 'ticket' );
1229         my @value = $query->multi_param($name);
1230         push @inputs, { name => $name, value => $_ } for @value;
1231     }
1232
1233     my $patron = Koha::Patrons->find({ userid => $q_userid }); # Not necessary logged in!
1234
1235     my $LibraryNameTitle = C4::Context->preference("LibraryName");
1236     $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
1237     $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
1238
1239     my $template_name = ( $type eq 'opac' ) ? 'opac-auth.tt' : 'auth.tt';
1240     my $template = C4::Templates::gettemplate( $template_name, $type, $query );
1241     $template->param(
1242         login                                 => 1,
1243         INPUTS                                => \@inputs,
1244         script_name                           => get_script_name(),
1245         casAuthentication                     => C4::Context->preference("casAuthentication"),
1246         shibbolethAuthentication              => $shib,
1247         SessionRestrictionByIP                => C4::Context->preference("SessionRestrictionByIP"),
1248         suggestion                            => C4::Context->preference("suggestion"),
1249         virtualshelves                        => C4::Context->preference("virtualshelves"),
1250         LibraryName                           => "" . C4::Context->preference("LibraryName"),
1251         LibraryNameTitle                      => "" . $LibraryNameTitle,
1252         opacuserlogin                         => C4::Context->preference("opacuserlogin"),
1253         OpacNav                               => C4::Context->preference("OpacNav"),
1254         OpacNavBottom                         => C4::Context->preference("OpacNavBottom"),
1255         opaccredits                           => C4::Context->preference("opaccredits"),
1256         OpacFavicon                           => C4::Context->preference("OpacFavicon"),
1257         opacreadinghistory                    => C4::Context->preference("opacreadinghistory"),
1258         opaclanguagesdisplay                  => C4::Context->preference("opaclanguagesdisplay"),
1259         OPACUserJS                            => C4::Context->preference("OPACUserJS"),
1260         opacbookbag                           => "" . C4::Context->preference("opacbookbag"),
1261         OpacCloud                             => C4::Context->preference("OpacCloud"),
1262         OpacTopissue                          => C4::Context->preference("OpacTopissue"),
1263         OpacAuthorities                       => C4::Context->preference("OpacAuthorities"),
1264         OpacBrowser                           => C4::Context->preference("OpacBrowser"),
1265         opacheader                            => C4::Context->preference("opacheader"),
1266         TagsEnabled                           => C4::Context->preference("TagsEnabled"),
1267         OPACUserCSS                           => C4::Context->preference("OPACUserCSS"),
1268         intranetcolorstylesheet               => C4::Context->preference("intranetcolorstylesheet"),
1269         intranetstylesheet                    => C4::Context->preference("intranetstylesheet"),
1270         intranetbookbag                       => C4::Context->preference("intranetbookbag"),
1271         IntranetNav                           => C4::Context->preference("IntranetNav"),
1272         IntranetFavicon                       => C4::Context->preference("IntranetFavicon"),
1273         IntranetUserCSS                       => C4::Context->preference("IntranetUserCSS"),
1274         IntranetUserJS                        => C4::Context->preference("IntranetUserJS"),
1275         IndependentBranches                   => C4::Context->preference("IndependentBranches"),
1276         AutoLocation                          => C4::Context->preference("AutoLocation"),
1277         wrongip                               => $info{'wrongip'},
1278         PatronSelfRegistration                => C4::Context->preference("PatronSelfRegistration"),
1279         PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
1280         opac_css_override                     => $ENV{'OPAC_CSS_OVERRIDE'},
1281         too_many_login_attempts               => ( $patron and $patron->account_locked )
1282     );
1283
1284     $template->param( SCO_login => 1 ) if ( $query->param('sco_user_login') );
1285     $template->param( SCI_login => 1 ) if ( $query->param('sci_user_login') );
1286     $template->param( OpacPublic => C4::Context->preference("OpacPublic") );
1287     $template->param( loginprompt => 1 ) unless $info{'nopermission'};
1288
1289     if ( $type eq 'opac' ) {
1290         require Koha::Virtualshelves;
1291         my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
1292             {
1293                 category       => 2,
1294             }
1295         );
1296         $template->param(
1297             some_public_shelves  => $some_public_shelves,
1298         );
1299     }
1300
1301     if ($cas) {
1302
1303         # Is authentication against multiple CAS servers enabled?
1304         if ( C4::Auth_with_cas::multipleAuth && !$casparam ) {
1305             my $casservers = C4::Auth_with_cas::getMultipleAuth();
1306             my @tmplservers;
1307             foreach my $key ( keys %$casservers ) {
1308                 push @tmplservers, { name => $key, value => login_cas_url( $query, $key, $type ) . "?cas=$key" };
1309             }
1310             $template->param(
1311                 casServersLoop => \@tmplservers
1312             );
1313         } else {
1314             $template->param(
1315                 casServerUrl => login_cas_url($query, undef, $type),
1316             );
1317         }
1318
1319         $template->param(
1320             invalidCasLogin => $info{'invalidCasLogin'}
1321         );
1322     }
1323
1324     if ($shib) {
1325         $template->param(
1326             shibbolethAuthentication => $shib,
1327             shibbolethLoginUrl       => login_shib_url($query),
1328         );
1329     }
1330
1331     if (C4::Context->preference('GoogleOpenIDConnect')) {
1332         if ($query->param("OpenIDConnectFailed")) {
1333             my $reason = $query->param('OpenIDConnectFailed');
1334             $template->param(invalidGoogleOpenIDConnectLogin => $reason);
1335         }
1336     }
1337
1338     $template->param(
1339         LibraryName => C4::Context->preference("LibraryName"),
1340     );
1341     $template->param(%info);
1342
1343     #    $cookie = $query->cookie(CGISESSID => $session->id
1344     #   );
1345     print $query->header(
1346         {   type              => 'text/html',
1347             charset           => 'utf-8',
1348             cookie            => $cookie,
1349             'X-Frame-Options' => 'SAMEORIGIN'
1350         }
1351       ),
1352       $template->output;
1353     safe_exit;
1354 }
1355
1356 =head2 check_api_auth
1357
1358   ($status, $cookie, $sessionId) = check_api_auth($query, $userflags);
1359
1360 Given a CGI query containing the parameters 'userid' and 'password' and/or a session
1361 cookie, determine if the user has the privileges specified by C<$userflags>.
1362
1363 C<check_api_auth> is is meant for authenticating users of web services, and
1364 consequently will always return and will not attempt to redirect the user
1365 agent.
1366
1367 If a valid session cookie is already present, check_api_auth will return a status
1368 of "ok", the cookie, and the Koha session ID.
1369
1370 If no session cookie is present, check_api_auth will check the 'userid' and 'password
1371 parameters and create a session cookie and Koha session if the supplied credentials
1372 are OK.
1373
1374 Possible return values in C<$status> are:
1375
1376 =over
1377
1378 =item "ok" -- user authenticated; C<$cookie> and C<$sessionid> have valid values.
1379
1380 =item "failed" -- credentials are not correct; C<$cookie> and C<$sessionid> are undef
1381
1382 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1383
1384 =item "expired -- session cookie has expired; API user should resubmit userid and password
1385
1386 =back
1387
1388 =cut
1389
1390 sub check_api_auth {
1391
1392     my $query         = shift;
1393     my $flagsrequired = shift;
1394     my $dbh     = C4::Context->dbh;
1395     my $timeout = _timeout_syspref();
1396
1397     unless ( C4::Context->preference('Version') ) {
1398
1399         # database has not been installed yet
1400         return ( "maintenance", undef, undef );
1401     }
1402     my $kohaversion = Koha::version();
1403     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1404     if ( C4::Context->preference('Version') < $kohaversion ) {
1405
1406         # database in need of version update; assume that
1407         # no API should be called while databsae is in
1408         # this condition.
1409         return ( "maintenance", undef, undef );
1410     }
1411
1412     # FIXME -- most of what follows is a copy-and-paste
1413     # of code from checkauth.  There is an obvious need
1414     # for refactoring to separate the various parts of
1415     # the authentication code, but as of 2007-11-19 this
1416     # is deferred so as to not introduce bugs into the
1417     # regular authentication code for Koha 3.0.
1418
1419     # see if we have a valid session cookie already
1420     # however, if a userid parameter is present (i.e., from
1421     # a form submission, assume that any current cookie
1422     # is to be ignored
1423     my $sessionID = undef;
1424     unless ( $query->param('userid') ) {
1425         $sessionID = $query->cookie("CGISESSID");
1426     }
1427     if ( $sessionID && not( $cas && $query->param('PT') ) ) {
1428         my $session = get_session($sessionID);
1429         C4::Context->_new_userenv($sessionID);
1430         if ($session) {
1431             C4::Context->interface($session->param('interface'));
1432             C4::Context->set_userenv(
1433                 $session->param('number'),       $session->param('id'),
1434                 $session->param('cardnumber'),   $session->param('firstname'),
1435                 $session->param('surname'),      $session->param('branch'),
1436                 $session->param('branchname'),   $session->param('flags'),
1437                 $session->param('emailaddress'), $session->param('branchprinter')
1438             );
1439
1440             my $ip       = $session->param('ip');
1441             my $lasttime = $session->param('lasttime');
1442             my $userid   = $session->param('id');
1443             if ( $lasttime < time() - $timeout ) {
1444
1445                 # time out
1446                 $session->delete();
1447                 $session->flush;
1448                 C4::Context->_unset_userenv($sessionID);
1449                 $userid    = undef;
1450                 $sessionID = undef;
1451                 return ( "expired", undef, undef );
1452             } elsif ( C4::Context->preference('SessionRestrictionByIP') && $ip ne $ENV{'REMOTE_ADDR'} ) {
1453
1454                 # IP address changed
1455                 $session->delete();
1456                 $session->flush;
1457                 C4::Context->_unset_userenv($sessionID);
1458                 $userid    = undef;
1459                 $sessionID = undef;
1460                 return ( "expired", undef, undef );
1461             } else {
1462                 my $cookie = $query->cookie(
1463                     -name     => 'CGISESSID',
1464                     -value    => $session->id,
1465                     -HttpOnly => 1,
1466                 );
1467                 $session->param( 'lasttime', time() );
1468                 my $flags = haspermission( $userid, $flagsrequired );
1469                 if ($flags) {
1470                     return ( "ok", $cookie, $sessionID );
1471                 } else {
1472                     $session->delete();
1473                     $session->flush;
1474                     C4::Context->_unset_userenv($sessionID);
1475                     $userid    = undef;
1476                     $sessionID = undef;
1477                     return ( "failed", undef, undef );
1478                 }
1479             }
1480         } else {
1481             return ( "expired", undef, undef );
1482         }
1483     } else {
1484
1485         # new login
1486         my $userid   = $query->param('userid');
1487         my $password = $query->param('password');
1488         my ( $return, $cardnumber, $cas_ticket );
1489
1490         # Proxy CAS auth
1491         if ( $cas && $query->param('PT') ) {
1492             my $retuserid;
1493             $debug and print STDERR "## check_api_auth - checking CAS\n";
1494
1495             # In case of a CAS authentication, we use the ticket instead of the password
1496             my $PT = $query->param('PT');
1497             ( $return, $cardnumber, $userid, $cas_ticket ) = check_api_auth_cas( $dbh, $PT, $query );    # EXTERNAL AUTH
1498         } else {
1499
1500             # User / password auth
1501             unless ( $userid and $password ) {
1502
1503                 # caller did something wrong, fail the authenticateion
1504                 return ( "failed", undef, undef );
1505             }
1506             my $newuserid;
1507             ( $return, $cardnumber, $newuserid, $cas_ticket ) = checkpw( $dbh, $userid, $password, $query );
1508         }
1509
1510         if ( $return and haspermission( $userid, $flagsrequired ) ) {
1511             my $session = get_session("");
1512             return ( "failed", undef, undef ) unless $session;
1513
1514             my $sessionID = $session->id;
1515             C4::Context->_new_userenv($sessionID);
1516             my $cookie = $query->cookie(
1517                 -name     => 'CGISESSID',
1518                 -value    => $sessionID,
1519                 -HttpOnly => 1,
1520             );
1521             if ( $return == 1 ) {
1522                 my (
1523                     $borrowernumber, $firstname,  $surname,
1524                     $userflags,      $branchcode, $branchname,
1525                     $branchprinter,  $emailaddress
1526                 );
1527                 my $sth =
1528                   $dbh->prepare(
1529 "select borrowernumber, firstname, surname, flags, borrowers.branchcode, branches.branchname as branchname,branches.branchprinter as branchprinter, email from borrowers left join branches on borrowers.branchcode=branches.branchcode where userid=?"
1530                   );
1531                 $sth->execute($userid);
1532                 (
1533                     $borrowernumber, $firstname,  $surname,
1534                     $userflags,      $branchcode, $branchname,
1535                     $branchprinter,  $emailaddress
1536                 ) = $sth->fetchrow if ( $sth->rows );
1537
1538                 unless ( $sth->rows ) {
1539                     my $sth = $dbh->prepare(
1540 "select borrowernumber, firstname, surname, flags, borrowers.branchcode, branches.branchname as branchname, branches.branchprinter as branchprinter, email from borrowers left join branches on borrowers.branchcode=branches.branchcode where cardnumber=?"
1541                     );
1542                     $sth->execute($cardnumber);
1543                     (
1544                         $borrowernumber, $firstname,  $surname,
1545                         $userflags,      $branchcode, $branchname,
1546                         $branchprinter,  $emailaddress
1547                     ) = $sth->fetchrow if ( $sth->rows );
1548
1549                     unless ( $sth->rows ) {
1550                         $sth->execute($userid);
1551                         (
1552                             $borrowernumber, $firstname,  $surname,       $userflags,
1553                             $branchcode,     $branchname, $branchprinter, $emailaddress
1554                         ) = $sth->fetchrow if ( $sth->rows );
1555                     }
1556                 }
1557
1558                 my $ip = $ENV{'REMOTE_ADDR'};
1559
1560                 # if they specify at login, use that
1561                 if ( $query->param('branch') ) {
1562                     $branchcode = $query->param('branch');
1563                     my $library = Koha::Libraries->find($branchcode);
1564                     $branchname = $library? $library->branchname: '';
1565                 }
1566                 my $branches = { map { $_->branchcode => $_->unblessed } Koha::Libraries->search };
1567                 foreach my $br ( keys %$branches ) {
1568
1569                     #     now we work with the treatment of ip
1570                     my $domain = $branches->{$br}->{'branchip'};
1571                     if ( $domain && $ip =~ /^$domain/ ) {
1572                         $branchcode = $branches->{$br}->{'branchcode'};
1573
1574                         # new op dev : add the branchprinter and branchname in the cookie
1575                         $branchprinter = $branches->{$br}->{'branchprinter'};
1576                         $branchname    = $branches->{$br}->{'branchname'};
1577                     }
1578                 }
1579                 $session->param( 'number',       $borrowernumber );
1580                 $session->param( 'id',           $userid );
1581                 $session->param( 'cardnumber',   $cardnumber );
1582                 $session->param( 'firstname',    $firstname );
1583                 $session->param( 'surname',      $surname );
1584                 $session->param( 'branch',       $branchcode );
1585                 $session->param( 'branchname',   $branchname );
1586                 $session->param( 'flags',        $userflags );
1587                 $session->param( 'emailaddress', $emailaddress );
1588                 $session->param( 'ip',           $session->remote_addr() );
1589                 $session->param( 'lasttime',     time() );
1590                 $session->param( 'interface',    'api'  );
1591             }
1592             $session->param( 'cas_ticket', $cas_ticket);
1593             C4::Context->set_userenv(
1594                 $session->param('number'),       $session->param('id'),
1595                 $session->param('cardnumber'),   $session->param('firstname'),
1596                 $session->param('surname'),      $session->param('branch'),
1597                 $session->param('branchname'),   $session->param('flags'),
1598                 $session->param('emailaddress'), $session->param('branchprinter')
1599             );
1600             return ( "ok", $cookie, $sessionID );
1601         } else {
1602             return ( "failed", undef, undef );
1603         }
1604     }
1605 }
1606
1607 =head2 check_cookie_auth
1608
1609   ($status, $sessionId) = check_api_auth($cookie, $userflags);
1610
1611 Given a CGISESSID cookie set during a previous login to Koha, determine
1612 if the user has the privileges specified by C<$userflags>. C<$userflags>
1613 is passed unaltered into C<haspermission> and as such accepts all options
1614 avaiable to that routine with the one caveat that C<check_api_auth> will
1615 also allow 'undef' to be passed and in such a case the permissions check
1616 will be skipped altogether.
1617
1618 C<check_cookie_auth> is meant for authenticating special services
1619 such as tools/upload-file.pl that are invoked by other pages that
1620 have been authenticated in the usual way.
1621
1622 Possible return values in C<$status> are:
1623
1624 =over
1625
1626 =item "ok" -- user authenticated; C<$sessionID> have valid values.
1627
1628 =item "failed" -- credentials are not correct; C<$sessionid> are undef
1629
1630 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1631
1632 =item "expired -- session cookie has expired; API user should resubmit userid and password
1633
1634 =back
1635
1636 =cut
1637
1638 sub check_cookie_auth {
1639     my $cookie        = shift;
1640     my $flagsrequired = shift;
1641     my $params        = shift;
1642
1643     my $remote_addr = $params->{remote_addr} || $ENV{REMOTE_ADDR};
1644     my $dbh     = C4::Context->dbh;
1645     my $timeout = _timeout_syspref();
1646
1647     unless ( C4::Context->preference('Version') ) {
1648
1649         # database has not been installed yet
1650         return ( "maintenance", undef );
1651     }
1652     my $kohaversion = Koha::version();
1653     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1654     if ( C4::Context->preference('Version') < $kohaversion ) {
1655
1656         # database in need of version update; assume that
1657         # no API should be called while databsae is in
1658         # this condition.
1659         return ( "maintenance", undef );
1660     }
1661
1662     # FIXME -- most of what follows is a copy-and-paste
1663     # of code from checkauth.  There is an obvious need
1664     # for refactoring to separate the various parts of
1665     # the authentication code, but as of 2007-11-23 this
1666     # is deferred so as to not introduce bugs into the
1667     # regular authentication code for Koha 3.0.
1668
1669     # see if we have a valid session cookie already
1670     # however, if a userid parameter is present (i.e., from
1671     # a form submission, assume that any current cookie
1672     # is to be ignored
1673     unless ( defined $cookie and $cookie ) {
1674         return ( "failed", undef );
1675     }
1676     my $sessionID = $cookie;
1677     my $session   = get_session($sessionID);
1678     C4::Context->_new_userenv($sessionID);
1679     if ($session) {
1680         C4::Context->interface($session->param('interface'));
1681         C4::Context->set_userenv(
1682             $session->param('number'),       $session->param('id'),
1683             $session->param('cardnumber'),   $session->param('firstname'),
1684             $session->param('surname'),      $session->param('branch'),
1685             $session->param('branchname'),   $session->param('flags'),
1686             $session->param('emailaddress'), $session->param('branchprinter')
1687         );
1688
1689         my $ip       = $session->param('ip');
1690         my $lasttime = $session->param('lasttime');
1691         my $userid   = $session->param('id');
1692         if ( $lasttime < time() - $timeout ) {
1693
1694             # time out
1695             $session->delete();
1696             $session->flush;
1697             C4::Context->_unset_userenv($sessionID);
1698             $userid    = undef;
1699             $sessionID = undef;
1700             return ("expired", undef);
1701         } elsif ( C4::Context->preference('SessionRestrictionByIP') && $ip ne $remote_addr ) {
1702
1703             # IP address changed
1704             $session->delete();
1705             $session->flush;
1706             C4::Context->_unset_userenv($sessionID);
1707             $userid    = undef;
1708             $sessionID = undef;
1709             return ( "expired", undef );
1710         } else {
1711             $session->param( 'lasttime', time() );
1712             my $flags = defined($flagsrequired) ? haspermission( $userid, $flagsrequired ) : 1;
1713             if ($flags) {
1714                 return ( "ok", $sessionID );
1715             } else {
1716                 $session->delete();
1717                 $session->flush;
1718                 C4::Context->_unset_userenv($sessionID);
1719                 $userid    = undef;
1720                 $sessionID = undef;
1721                 return ( "failed", undef );
1722             }
1723         }
1724     } else {
1725         return ( "expired", undef );
1726     }
1727 }
1728
1729 =head2 get_session
1730
1731   use CGI::Session;
1732   my $session = get_session($sessionID);
1733
1734 Given a session ID, retrieve the CGI::Session object used to store
1735 the session's state.  The session object can be used to store
1736 data that needs to be accessed by different scripts during a
1737 user's session.
1738
1739 If the C<$sessionID> parameter is an empty string, a new session
1740 will be created.
1741
1742 =cut
1743
1744 sub _get_session_params {
1745     my $storage_method = C4::Context->preference('SessionStorage');
1746     if ( $storage_method eq 'mysql' ) {
1747         my $dbh = C4::Context->dbh;
1748         return { dsn => "driver:MySQL;serializer:yaml;id:md5", dsn_args => { Handle => $dbh } };
1749     }
1750     elsif ( $storage_method eq 'Pg' ) {
1751         my $dbh = C4::Context->dbh;
1752         return { dsn => "driver:PostgreSQL;serializer:yaml;id:md5", dsn_args => { Handle => $dbh } };
1753     }
1754     elsif ( $storage_method eq 'memcached' && Koha::Caches->get_instance->memcached_cache ) {
1755         my $memcached = Koha::Caches->get_instance()->memcached_cache;
1756         return { dsn => "driver:memcached;serializer:yaml;id:md5", dsn_args => { Memcached => $memcached } };
1757     }
1758     else {
1759         # catch all defaults to tmp should work on all systems
1760         my $dir = C4::Context::temporary_directory;
1761         my $instance = C4::Context->config( 'database' ); #actually for packages not exactly the instance name, but generally safer to leave it as it is
1762         return { dsn => "driver:File;serializer:yaml;id:md5", dsn_args => { Directory => "$dir/cgisess_$instance" } };
1763     }
1764 }
1765
1766 sub get_session {
1767     my $sessionID      = shift;
1768     my $params = _get_session_params();
1769     return new CGI::Session( $params->{dsn}, $sessionID, $params->{dsn_args} );
1770 }
1771
1772
1773 # FIXME no_set_userenv may be replaced with force_branchcode_for_userenv
1774 # (or something similar)
1775 # Currently it's only passed from C4::SIP::ILS::Patron::check_password, but
1776 # not having a userenv defined could cause a crash.
1777 sub checkpw {
1778     my ( $dbh, $userid, $password, $query, $type, $no_set_userenv ) = @_;
1779     $type = 'opac' unless $type;
1780
1781     # Get shibboleth login attribute
1782     my $shib = C4::Context->config('useshibboleth') && shib_ok();
1783     my $shib_login = $shib ? get_login_shib() : undef;
1784
1785     my @return;
1786     my $patron;
1787     if ( defined $userid ){
1788         $patron = Koha::Patrons->find({ userid => $userid });
1789         $patron = Koha::Patrons->find({ cardnumber => $userid }) unless $patron;
1790     }
1791     my $check_internal_as_fallback = 0;
1792     my $passwd_ok = 0;
1793     # Note: checkpw_* routines returns:
1794     # 1 if auth is ok
1795     # 0 if auth is nok
1796     # -1 if user bind failed (LDAP only)
1797
1798     if ( $patron and $patron->account_locked ) {
1799         # Nothing to check, account is locked
1800     } elsif ($ldap && defined($password)) {
1801         $debug and print STDERR "## checkpw - checking LDAP\n";
1802         my ( $retval, $retcard, $retuserid ) = checkpw_ldap(@_);    # EXTERNAL AUTH
1803         if ( $retval == 1 ) {
1804             @return = ( $retval, $retcard, $retuserid );
1805             $passwd_ok = 1;
1806         }
1807         $check_internal_as_fallback = 1 if $retval == 0;
1808
1809     } elsif ( $cas && $query && $query->param('ticket') ) {
1810         $debug and print STDERR "## checkpw - checking CAS\n";
1811
1812         # In case of a CAS authentication, we use the ticket instead of the password
1813         my $ticket = $query->param('ticket');
1814         $query->delete('ticket');                                   # remove ticket to come back to original URL
1815         my ( $retval, $retcard, $retuserid, $cas_ticket ) = checkpw_cas( $dbh, $ticket, $query, $type );    # EXTERNAL AUTH
1816         if ( $retval ) {
1817             @return = ( $retval, $retcard, $retuserid, $cas_ticket );
1818         } else {
1819             @return = (0);
1820         }
1821         $passwd_ok = $retval;
1822     }
1823
1824     # If we are in a shibboleth session (shibboleth is enabled, and a shibboleth match attribute is present)
1825     # Check for password to asertain whether we want to be testing against shibboleth or another method this
1826     # time around.
1827     elsif ( $shib && $shib_login && !$password ) {
1828
1829         $debug and print STDERR "## checkpw - checking Shibboleth\n";
1830
1831         # In case of a Shibboleth authentication, we expect a shibboleth user attribute
1832         # (defined under shibboleth mapping in koha-conf.xml) to contain the login of the
1833         # shibboleth-authenticated user
1834
1835         # Then, we check if it matches a valid koha user
1836         if ($shib_login) {
1837             my ( $retval, $retcard, $retuserid ) = C4::Auth_with_shibboleth::checkpw_shib($shib_login);    # EXTERNAL AUTH
1838             if ( $retval ) {
1839                 @return = ( $retval, $retcard, $retuserid );
1840             }
1841             $passwd_ok = $retval;
1842         }
1843     } else {
1844         $check_internal_as_fallback = 1;
1845     }
1846
1847     # INTERNAL AUTH
1848     if ( $check_internal_as_fallback ) {
1849         @return = checkpw_internal( $dbh, $userid, $password, $no_set_userenv);
1850         $passwd_ok = 1 if $return[0] > 0; # 1 or 2
1851     }
1852
1853     if( $patron ) {
1854         if ( $passwd_ok ) {
1855             $patron->update({ login_attempts => 0 });
1856         } elsif( !$patron->account_locked ) {
1857             $patron->update({ login_attempts => $patron->login_attempts + 1 });
1858         }
1859     }
1860     return @return;
1861 }
1862
1863 sub checkpw_internal {
1864     my ( $dbh, $userid, $password, $no_set_userenv ) = @_;
1865
1866     $password = Encode::encode( 'UTF-8', $password )
1867       if Encode::is_utf8($password);
1868
1869     my $sth =
1870       $dbh->prepare(
1871         "select password,cardnumber,borrowernumber,userid,firstname,surname,borrowers.branchcode,branches.branchname,flags from borrowers join branches on borrowers.branchcode=branches.branchcode where userid=?"
1872       );
1873     $sth->execute($userid);
1874     if ( $sth->rows ) {
1875         my ( $stored_hash, $cardnumber, $borrowernumber, $userid, $firstname,
1876             $surname, $branchcode, $branchname, $flags )
1877           = $sth->fetchrow;
1878
1879         if ( checkpw_hash( $password, $stored_hash ) ) {
1880
1881             C4::Context->set_userenv( "$borrowernumber", $userid, $cardnumber,
1882                 $firstname, $surname, $branchcode, $branchname, $flags ) unless $no_set_userenv;
1883             return 1, $cardnumber, $userid;
1884         }
1885     }
1886     $sth =
1887       $dbh->prepare(
1888         "select password,cardnumber,borrowernumber,userid,firstname,surname,borrowers.branchcode,branches.branchname,flags from borrowers join branches on borrowers.branchcode=branches.branchcode where cardnumber=?"
1889       );
1890     $sth->execute($userid);
1891     if ( $sth->rows ) {
1892         my ( $stored_hash, $cardnumber, $borrowernumber, $userid, $firstname,
1893             $surname, $branchcode, $branchname, $flags )
1894           = $sth->fetchrow;
1895
1896         if ( checkpw_hash( $password, $stored_hash ) ) {
1897
1898             C4::Context->set_userenv( $borrowernumber, $userid, $cardnumber,
1899                 $firstname, $surname, $branchcode, $branchname, $flags ) unless $no_set_userenv;
1900             return 1, $cardnumber, $userid;
1901         }
1902     }
1903     return 0;
1904 }
1905
1906 sub checkpw_hash {
1907     my ( $password, $stored_hash ) = @_;
1908
1909     return if $stored_hash eq '!';
1910
1911     # check what encryption algorithm was implemented: Bcrypt - if the hash starts with '$2' it is Bcrypt else md5
1912     my $hash;
1913     if ( substr( $stored_hash, 0, 2 ) eq '$2' ) {
1914         $hash = hash_password( $password, $stored_hash );
1915     } else {
1916         $hash = md5_base64($password);
1917     }
1918     return $hash eq $stored_hash;
1919 }
1920
1921 =head2 getuserflags
1922
1923     my $authflags = getuserflags($flags, $userid, [$dbh]);
1924
1925 Translates integer flags into permissions strings hash.
1926
1927 C<$flags> is the integer userflags value ( borrowers.userflags )
1928 C<$userid> is the members.userid, used for building subpermissions
1929 C<$authflags> is a hashref of permissions
1930
1931 =cut
1932
1933 sub getuserflags {
1934     my $flags  = shift;
1935     my $userid = shift;
1936     my $dbh    = @_ ? shift : C4::Context->dbh;
1937     my $userflags;
1938     {
1939         # I don't want to do this, but if someone logs in as the database
1940         # user, it would be preferable not to spam them to death with
1941         # numeric warnings. So, we make $flags numeric.
1942         no warnings 'numeric';
1943         $flags += 0;
1944     }
1945     my $sth = $dbh->prepare("SELECT bit, flag, defaulton FROM userflags");
1946     $sth->execute;
1947
1948     while ( my ( $bit, $flag, $defaulton ) = $sth->fetchrow ) {
1949         if ( ( $flags & ( 2**$bit ) ) || $defaulton ) {
1950             $userflags->{$flag} = 1;
1951         }
1952         else {
1953             $userflags->{$flag} = 0;
1954         }
1955     }
1956
1957     # get subpermissions and merge with top-level permissions
1958     my $user_subperms = get_user_subpermissions($userid);
1959     foreach my $module ( keys %$user_subperms ) {
1960         next if $userflags->{$module} == 1;    # user already has permission for everything in this module
1961         $userflags->{$module} = $user_subperms->{$module};
1962     }
1963
1964     return $userflags;
1965 }
1966
1967 =head2 get_user_subpermissions
1968
1969   $user_perm_hashref = get_user_subpermissions($userid);
1970
1971 Given the userid (note, not the borrowernumber) of a staff user,
1972 return a hashref of hashrefs of the specific subpermissions
1973 accorded to the user.  An example return is
1974
1975  {
1976     tools => {
1977         export_catalog => 1,
1978         import_patrons => 1,
1979     }
1980  }
1981
1982 The top-level hash-key is a module or function code from
1983 userflags.flag, while the second-level key is a code
1984 from permissions.
1985
1986 The results of this function do not give a complete picture
1987 of the functions that a staff user can access; it is also
1988 necessary to check borrowers.flags.
1989
1990 =cut
1991
1992 sub get_user_subpermissions {
1993     my $userid = shift;
1994
1995     my $dbh = C4::Context->dbh;
1996     my $sth = $dbh->prepare( "SELECT flag, user_permissions.code
1997                              FROM user_permissions
1998                              JOIN permissions USING (module_bit, code)
1999                              JOIN userflags ON (module_bit = bit)
2000                              JOIN borrowers USING (borrowernumber)
2001                              WHERE userid = ?" );
2002     $sth->execute($userid);
2003
2004     my $user_perms = {};
2005     while ( my $perm = $sth->fetchrow_hashref ) {
2006         $user_perms->{ $perm->{'flag'} }->{ $perm->{'code'} } = 1;
2007     }
2008     return $user_perms;
2009 }
2010
2011 =head2 get_all_subpermissions
2012
2013   my $perm_hashref = get_all_subpermissions();
2014
2015 Returns a hashref of hashrefs defining all specific
2016 permissions currently defined.  The return value
2017 has the same structure as that of C<get_user_subpermissions>,
2018 except that the innermost hash value is the description
2019 of the subpermission.
2020
2021 =cut
2022
2023 sub get_all_subpermissions {
2024     my $dbh = C4::Context->dbh;
2025     my $sth = $dbh->prepare( "SELECT flag, code
2026                              FROM permissions
2027                              JOIN userflags ON (module_bit = bit)" );
2028     $sth->execute();
2029
2030     my $all_perms = {};
2031     while ( my $perm = $sth->fetchrow_hashref ) {
2032         $all_perms->{ $perm->{'flag'} }->{ $perm->{'code'} } = 1;
2033     }
2034     return $all_perms;
2035 }
2036
2037 =head2 haspermission
2038
2039   $flagsrequired = '*';                                 # Any permission at all
2040   $flagsrequired = 'a_flag';                            # a_flag must be satisfied (all subpermissions)
2041   $flagsrequired = [ 'a_flag', 'b_flag' ];              # a_flag OR b_flag must be satisfied
2042   $flagsrequired = { 'a_flag => 1, 'b_flag' => 1 };     # a_flag AND b_flag must be satisfied
2043   $flagsrequired = { 'a_flag' => 'sub_a' };             # sub_a of a_flag must be satisfied
2044   $flagsrequired = { 'a_flag' => [ 'sub_a, 'sub_b' ] }; # sub_a OR sub_b of a_flag must be satisfied
2045
2046   $flags = ($userid, $flagsrequired);
2047
2048 C<$userid> the userid of the member
2049 C<$flags> is a query structure similar to that used by SQL::Abstract that
2050 denotes the combination of flags required. It is a required parameter.
2051
2052 The main logic of this method is that things in arrays are OR'ed, and things
2053 in hashes are AND'ed. The `*` character can be used, at any depth, to denote `ANY`
2054
2055 Returns member's flags or 0 if a permission is not met.
2056
2057 =cut
2058
2059 sub _dispatch {
2060     my ($required, $flags) = @_;
2061
2062     my $ref = ref($required);
2063     if ($ref eq '') {
2064         if ($required eq '*') {
2065             return 0 unless ( $flags or ref( $flags ) );
2066         } else {
2067             return 0 unless ( $flags and (!ref( $flags ) || $flags->{$required} ));
2068         }
2069     } elsif ($ref eq 'HASH') {
2070         foreach my $key (keys %{$required}) {
2071             next if $flags == 1;
2072             my $require = $required->{$key};
2073             my $rflags  = $flags->{$key};
2074             return 0 unless _dispatch($require, $rflags);
2075         }
2076     } elsif ($ref eq 'ARRAY') {
2077         my $satisfied = 0;
2078         foreach my $require ( @{$required} ) {
2079             my $rflags =
2080               ( ref($flags) && !ref($require) && ( $require ne '*' ) )
2081               ? $flags->{$require}
2082               : $flags;
2083             $satisfied++ if _dispatch( $require, $rflags );
2084         }
2085         return 0 unless $satisfied;
2086     } else {
2087         croak "Unexpected structure found: $ref";
2088     }
2089
2090     return $flags;
2091 };
2092
2093 sub haspermission {
2094     my ( $userid, $flagsrequired ) = @_;
2095
2096     #Koha::Exceptions::WrongParameter->throw('$flagsrequired should not be undef')
2097     #  unless defined($flagsrequired);
2098
2099     my $sth = C4::Context->dbh->prepare("SELECT flags FROM borrowers WHERE userid=?");
2100     $sth->execute($userid);
2101     my $row = $sth->fetchrow();
2102     my $flags = getuserflags( $row, $userid );
2103
2104     return $flags unless defined($flagsrequired);
2105     return $flags if $flags->{superlibrarian};
2106     return _dispatch($flagsrequired, $flags);
2107
2108     #FIXME - This fcn should return the failed permission so a suitable error msg can be delivered.
2109 }
2110
2111 =head2 in_ipset
2112
2113   $flags = ($ipset);
2114
2115 C<$ipset> A space separated string describing an IP set. Can include single IPs or ranges
2116
2117 Returns 1 if the remote address is in the provided ipset, or 0 otherwise.
2118
2119 =cut
2120
2121 sub in_ipset {
2122     my ($ipset) = @_;
2123     my $result = 1;
2124     my @allowedipranges = $ipset ? split(' ', $ipset) : ();
2125     if (scalar @allowedipranges > 0) {
2126         my @rangelist;
2127         eval { @rangelist = Net::CIDR::range2cidr(@allowedipranges); }; return 0 if $@;
2128         eval { $result = Net::CIDR::cidrlookup($ENV{'REMOTE_ADDR'}, @rangelist) } || ( $ENV{DEBUG} && warn 'cidrlookup failed for ' . join(' ',@rangelist) );
2129      }
2130      return $result ? 1 : 0;
2131 }
2132
2133 sub getborrowernumber {
2134     my ($userid) = @_;
2135     my $userenv = C4::Context->userenv;
2136     if ( defined($userenv) && ref($userenv) eq 'HASH' && $userenv->{number} ) {
2137         return $userenv->{number};
2138     }
2139     my $dbh = C4::Context->dbh;
2140     for my $field ( 'userid', 'cardnumber' ) {
2141         my $sth =
2142           $dbh->prepare("select borrowernumber from borrowers where $field=?");
2143         $sth->execute($userid);
2144         if ( $sth->rows ) {
2145             my ($bnumber) = $sth->fetchrow;
2146             return $bnumber;
2147         }
2148     }
2149     return 0;
2150 }
2151
2152 =head2 track_login_daily
2153
2154     track_login_daily( $userid );
2155
2156 Wraps the call to $patron->track_login, the method used to update borrowers.lastseen. We only call track_login once a day.
2157
2158 =cut
2159
2160 sub track_login_daily {
2161     my $userid = shift;
2162     return if !$userid || !C4::Context->preference('TrackLastPatronActivity');
2163
2164     my $cache     = Koha::Caches->get_instance();
2165     my $cache_key = "track_login_" . $userid;
2166     my $cached    = $cache->get_from_cache($cache_key);
2167     my $today = dt_from_string()->ymd;
2168     return if $cached && $cached eq $today;
2169
2170     my $patron = Koha::Patrons->find({ userid => $userid });
2171     return unless $patron;
2172     $patron->track_login;
2173     $cache->set_in_cache( $cache_key, $today );
2174 }
2175
2176 END { }    # module clean-up code here (global destructor)
2177 1;
2178 __END__
2179
2180 =head1 SEE ALSO
2181
2182 CGI(3)
2183
2184 C4::Output(3)
2185
2186 Crypt::Eksblowfish::Bcrypt(3)
2187
2188 Digest::MD5(3)
2189
2190 =cut