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 Digest::MD5 qw(md5_base64);
  23 use File::Spec;
  24 use JSON qw/encode_json/;
  25 use URI::Escape;
  26 use CGI::Session;
  27
  28 require Exporter;
  29 use C4::Context;
  30 use C4::Templates;    # to get the template
  31 use C4::Languages;
  32 use C4::Search::History;
  33 use Koha;
  34 use Koha::Caches;
  35 use Koha::AuthUtils qw(get_script_name hash_password);
  36 use Koha::Libraries;
  37 use Koha::LibraryCategories;
  38 use Koha::Patrons;
  39 use POSIX qw/strftime/;
  40 use List::MoreUtils qw/ any /;
  41 use Encode qw( encode is_utf8);
  42
  43 # use utf8;
  44 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug $ldap $cas $caslogout $shib $shib_login);
  45
  46 BEGIN {
  47     sub psgi_env { any { /^psgi\./ } keys %ENV }
  48
  49     sub safe_exit {
  50         if   (psgi_env) { die 'psgi:exit' }
  51         else            { exit }
  52     }
  53
  54     $debug     = $ENV{DEBUG};
  55     @ISA       = qw(Exporter);
  56     @EXPORT    = qw(&checkauth &get_template_and_user &haspermission &get_user_subpermissions);
  57     @EXPORT_OK = qw(&check_api_auth &get_session &check_cookie_auth &checkpw &checkpw_internal &checkpw_hash
  58       &get_all_subpermissions &get_user_subpermissions
  59     );
  60     %EXPORT_TAGS = ( EditPermissions => [qw(get_all_subpermissions get_user_subpermissions)] );
  61     $ldap      = C4::Context->config('useldapserver') || 0;
  62     $cas       = C4::Context->preference('casAuthentication');
  63     $shib      = C4::Context->config('useshibboleth') || 0;
  64     $caslogout = C4::Context->preference('casLogout');
  65     require C4::Auth_with_cas;    # no import
  66
  67     if ($ldap) {
  68         require C4::Auth_with_ldap;
  69         import C4::Auth_with_ldap qw(checkpw_ldap);
  70     }
  71     if ($shib) {
  72         require C4::Auth_with_shibboleth;
  73         import C4::Auth_with_shibboleth
  74           qw(shib_ok checkpw_shib logout_shib login_shib_url get_login_shib);
  75
  76         # Check for good config
  77         if ( shib_ok() ) {
  78
  79             # Get shibboleth login attribute
  80             $shib_login = get_login_shib();
  81         }
  82
  83         # Bad config, disable shibboleth
  84         else {
  85             $shib = 0;
  86         }
  87     }
  88     if ($cas) {
  89         import C4::Auth_with_cas qw(check_api_auth_cas checkpw_cas login_cas logout_cas login_cas_url);
  90     }
  91
  92 }
  93
  94 =head1 NAME
  95
  96 C4::Auth - Authenticates Koha users
  97
  98 =head1 SYNOPSIS
  99
 100   use CGI qw ( -utf8 );
 101   use C4::Auth;
 102   use C4::Output;
 103
 104   my $query = new CGI;
 105
 106   my ($template, $borrowernumber, $cookie)
 107     = get_template_and_user(
 108         {
 109             template_name   => "opac-main.tt",
 110             query           => $query,
 111       type            => "opac",
 112       authnotrequired => 0,
 113       flagsrequired   => { catalogue => '*', tools => 'import_patrons' },
 114   }
 115     );
 116
 117   output_html_with_http_headers $query, $cookie, $template->output;
 118
 119 =head1 DESCRIPTION
 120
 121 The main function of this module is to provide
 122 authentification. However the get_template_and_user function has
 123 been provided so that a users login information is passed along
 124 automatically. This gets loaded into the template.
 125
 126 =head1 FUNCTIONS
 127
 128 =head2 get_template_and_user
 129
 130  my ($template, $borrowernumber, $cookie)
 131      = get_template_and_user(
 132        {
 133          template_name   => "opac-main.tt",
 134          query           => $query,
 135          type            => "opac",
 136          authnotrequired => 0,
 137          flagsrequired   => { catalogue => '*', tools => 'import_patrons' },
 138        }
 139      );
 140
 141 This call passes the C<query>, C<flagsrequired> and C<authnotrequired>
 142 to C<&checkauth> (in this module) to perform authentification.
 143 See C<&checkauth> for an explanation of these parameters.
 144
 145 The C<template_name> is then used to find the correct template for
 146 the page. The authenticated users details are loaded onto the
 147 template in the HTML::Template LOOP variable C<USER_INFO>. Also the
 148 C<sessionID> is passed to the template. This can be used in templates
 149 if cookies are disabled. It needs to be put as and input to every
 150 authenticated page.
 151
 152 More information on the C<gettemplate> sub can be found in the
 153 Output.pm module.
 154
 155 =cut
 156
 157 sub get_template_and_user {
 158
 159     my $in = shift;
 160     my ( $user, $cookie, $sessionID, $flags );
 161
 162     C4::Context->interface( $in->{type} );
 163
 164     my $safe_chars = 'a-zA-Z0-9_\-\/';
 165     die "bad template path" unless $in->{'template_name'} =~ m/^[$safe_chars]+\.tt$/ig; #sanitize input
 166
 167     $in->{'authnotrequired'} ||= 0;
 168     my $template = C4::Templates::gettemplate(
 169         $in->{'template_name'},
 170         $in->{'type'},
 171         $in->{'query'},
 172         $in->{'is_plugin'}
 173     );
 174
 175     if ( $in->{'template_name'} !~ m/maintenance/ ) {
 176         ( $user, $cookie, $sessionID, $flags ) = checkauth(
 177             $in->{'query'},
 178             $in->{'authnotrequired'},
 179             $in->{'flagsrequired'},
 180             $in->{'type'}
 181         );
 182     }
 183
 184
 185     # If the user logged in is the SCO user and they try to go out of the SCO module, log the user out removing the CGISESSID cookie
 186     if ( $in->{type} eq 'opac' and $in->{template_name} !~ m|sco/| ) {
 187         if ( $user && C4::Context->preference('AutoSelfCheckID') && $user eq C4::Context->preference('AutoSelfCheckID') ) {
 188             $template = C4::Templates::gettemplate( 'opac-auth.tt', 'opac', $in->{query} );
 189             my $cookie = $in->{query}->cookie(
 190                 -name     => 'CGISESSID',
 191                 -value    => '',
 192                 -expires  => '',
 193                 -HttpOnly => 1,
 194             );
 195
 196             $template->param(
 197                 loginprompt => 1,
 198                 script_name => get_script_name(),
 199             );
 200             print $in->{query}->header(
 201                 {   type              => 'text/html',
 202                     charset           => 'utf-8',
 203                     cookie            => $cookie,
 204                     'X-Frame-Options' => 'SAMEORIGIN'
 205                 }
 206               ),
 207             $template->output;
 208             safe_exit;
 209         }
 210     }
 211
 212     my $borrowernumber;
 213     if ($user) {
 214         require C4::Members;
 215
 216         # It's possible for $user to be the borrowernumber if they don't have a
 217         # userid defined (and are logging in through some other method, such
 218         # as SSL certs against an email address)
 219         my $borrower;
 220         $borrowernumber = getborrowernumber($user) if defined($user);
 221         if ( !defined($borrowernumber) && defined($user) ) {
 222             $borrower = C4::Members::GetMember( borrowernumber => $user );
 223             if ($borrower) {
 224                 $borrowernumber = $user;
 225
 226                 # A bit of a hack, but I don't know there's a nicer way
 227                 # to do it.
 228                 $user = $borrower->{firstname} . ' ' . $borrower->{surname};
 229             }
 230         } else {
 231             $borrower = C4::Members::GetMember( borrowernumber => $borrowernumber );
 232         }
 233
 234         # user info
 235         $template->param( loggedinusername   => $user );
 236         $template->param( loggedinusernumber => $borrowernumber );
 237         $template->param( sessionID          => $sessionID );
 238
 239         if ( $in->{'type'} eq 'opac' ) {
 240             require Koha::Virtualshelves;
 241             my $some_private_shelves = Koha::Virtualshelves->get_some_shelves(
 242                 {
 243                     borrowernumber => $borrowernumber,
 244                     category       => 1,
 245                 }
 246             );
 247             my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
 248                 {
 249                     category       => 2,
 250                 }
 251             );
 252             $template->param(
 253                 some_private_shelves => $some_private_shelves,
 254                 some_public_shelves  => $some_public_shelves,
 255             );
 256         }
 257
 258         $template->param( "USER_INFO" => $borrower );
 259
 260         my $all_perms = get_all_subpermissions();
 261
 262         my @flagroots = qw(circulate catalogue parameters borrowers permissions reserveforothers borrow
 263           editcatalogue updatecharges management tools editauthorities serials reports acquisition clubs);
 264
 265         # We are going to use the $flags returned by checkauth
 266         # to create the template's parameters that will indicate
 267         # which menus the user can access.
 268         if ( $flags && $flags->{superlibrarian} == 1 ) {
 269             $template->param( CAN_user_circulate        => 1 );
 270             $template->param( CAN_user_catalogue        => 1 );
 271             $template->param( CAN_user_parameters       => 1 );
 272             $template->param( CAN_user_borrowers        => 1 );
 273             $template->param( CAN_user_permissions      => 1 );
 274             $template->param( CAN_user_reserveforothers => 1 );
 275             $template->param( CAN_user_editcatalogue    => 1 );
 276             $template->param( CAN_user_updatecharges    => 1 );
 277             $template->param( CAN_user_acquisition      => 1 );
 278             $template->param( CAN_user_management       => 1 );
 279             $template->param( CAN_user_tools            => 1 );
 280             $template->param( CAN_user_editauthorities  => 1 );
 281             $template->param( CAN_user_serials          => 1 );
 282             $template->param( CAN_user_reports          => 1 );
 283             $template->param( CAN_user_staffaccess      => 1 );
 284             $template->param( CAN_user_plugins          => 1 );
 285             $template->param( CAN_user_coursereserves   => 1 );
 286             $template->param( CAN_user_clubs            => 1 );
 287
 288             foreach my $module ( keys %$all_perms ) {
 289                 foreach my $subperm ( keys %{ $all_perms->{$module} } ) {
 290                     $template->param( "CAN_user_${module}_${subperm}" => 1 );
 291                 }
 292             }
 293         }
 294
 295         if ($flags) {
 296             foreach my $module ( keys %$all_perms ) {
 297                 if ( defined($flags->{$module}) && $flags->{$module} == 1 ) {
 298                     foreach my $subperm ( keys %{ $all_perms->{$module} } ) {
 299                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 300                     }
 301                 } elsif ( ref( $flags->{$module} ) ) {
 302                     foreach my $subperm ( keys %{ $flags->{$module} } ) {
 303                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 304                     }
 305                 }
 306             }
 307         }
 308
 309         if ($flags) {
 310             foreach my $module ( keys %$flags ) {
 311                 if ( $flags->{$module} == 1 or ref( $flags->{$module} ) ) {
 312                     $template->param( "CAN_user_$module" => 1 );
 313                     if ( $module eq "parameters" ) {
 314                         $template->param( CAN_user_management => 1 );
 315                     }
 316                 }
 317             }
 318         }
 319
 320         # Logged-in opac search history
 321         # If the requested template is an opac one and opac search history is enabled
 322         if ( $in->{type} eq 'opac' && C4::Context->preference('EnableOpacSearchHistory') ) {
 323             my $dbh   = C4::Context->dbh;
 324             my $query = "SELECT COUNT(*) FROM search_history WHERE userid=?";
 325             my $sth   = $dbh->prepare($query);
 326             $sth->execute($borrowernumber);
 327
 328             # If at least one search has already been performed
 329             if ( $sth->fetchrow_array > 0 ) {
 330
 331                 # We show the link in opac
 332                 $template->param( EnableOpacSearchHistory => 1 );
 333             }
 334             if (C4::Context->preference('LoadSearchHistoryToTheFirstLoggedUser'))
 335             {
 336                 # And if there are searches performed when the user was not logged in,
 337                 # we add them to the logged-in search history
 338                 my @recentSearches = C4::Search::History::get_from_session( { cgi => $in->{'query'} } );
 339                 if (@recentSearches) {
 340                     my $dbh   = C4::Context->dbh;
 341                     my $query = q{
 342                         INSERT INTO search_history(userid, sessionid, query_desc, query_cgi, type,  total, time )
 343                         VALUES (?, ?, ?, ?, ?, ?, ?)
 344                     };
 345                     my $sth = $dbh->prepare($query);
 346                     $sth->execute( $borrowernumber,
 347                         $in->{query}->cookie("CGISESSID"),
 348                         $_->{query_desc},
 349                         $_->{query_cgi},
 350                         $_->{type} || 'biblio',
 351                         $_->{total},
 352                         $_->{time},
 353                     ) foreach @recentSearches;
 354
 355                     # clear out the search history from the session now that
 356                     # we've saved it to the database
 357                  }
 358               }
 359               C4::Search::History::set_to_session( { cgi => $in->{'query'}, search_history => [] } );
 360
 361         } elsif ( $in->{type} eq 'intranet' and C4::Context->preference('EnableSearchHistory') ) {
 362             $template->param( EnableSearchHistory => 1 );
 363         }
 364     }
 365     else {    # if this is an anonymous session, setup to display public lists...
 366
 367         # If shibboleth is enabled, and we're in an anonymous session, we should allow
 368         # the user to attempt login via shibboleth.
 369         if ($shib) {
 370             $template->param( shibbolethAuthentication => $shib,
 371                 shibbolethLoginUrl => login_shib_url( $in->{'query'} ),
 372             );
 373
 374             # If shibboleth is enabled and we have a shibboleth login attribute,
 375             # but we are in an anonymous session, then we clearly have an invalid
 376             # shibboleth koha account.
 377             if ($shib_login) {
 378                 $template->param( invalidShibLogin => '1' );
 379             }
 380         }
 381
 382         $template->param( sessionID => $sessionID );
 383
 384         if ( $in->{'type'} eq 'opac' ){
 385             require Koha::Virtualshelves;
 386             my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
 387                 {
 388                     category       => 2,
 389                 }
 390             );
 391             $template->param(
 392                 some_public_shelves  => $some_public_shelves,
 393             );
 394         }
 395     }
 396
 397     # Anonymous opac search history
 398     # If opac search history is enabled and at least one search has already been performed
 399     if ( C4::Context->preference('EnableOpacSearchHistory') ) {
 400         my @recentSearches = C4::Search::History::get_from_session( { cgi => $in->{'query'} } );
 401         if (@recentSearches) {
 402             $template->param( EnableOpacSearchHistory => 1 );
 403         }
 404     }
 405
 406     if ( C4::Context->preference('dateformat') ) {
 407         $template->param( dateformat => C4::Context->preference('dateformat') );
 408     }
 409
 410     $template->param(auth_forwarded_hash => scalar $in->{'query'}->param('auth_forwarded_hash'));
 411
 412     # these template parameters are set the same regardless of $in->{'type'}
 413
 414     # Set the using_https variable for templates
 415     # FIXME Under Plack the CGI->https method always returns 'OFF'
 416     my $https = $in->{query}->https();
 417     my $using_https = ( defined $https and $https ne 'OFF' ) ? 1 : 0;
 418
 419     $template->param(
 420         "BiblioDefaultView" . C4::Context->preference("BiblioDefaultView") => 1,
 421         EnhancedMessagingPreferences                                       => C4::Context->preference('EnhancedMessagingPreferences'),
 422         GoogleJackets                                                      => C4::Context->preference("GoogleJackets"),
 423         OpenLibraryCovers                                                  => C4::Context->preference("OpenLibraryCovers"),
 424         KohaAdminEmailAddress                                              => "" . C4::Context->preference("KohaAdminEmailAddress"),
 425         LoginBranchcode => ( C4::Context->userenv ? C4::Context->userenv->{"branch"}    : undef ),
 426         LoginFirstname  => ( C4::Context->userenv ? C4::Context->userenv->{"firstname"} : "Bel" ),
 427         LoginSurname    => C4::Context->userenv ? C4::Context->userenv->{"surname"}      : "Inconnu",
 428         emailaddress    => C4::Context->userenv ? C4::Context->userenv->{"emailaddress"} : undef,
 429         TagsEnabled     => C4::Context->preference("TagsEnabled"),
 430         hide_marc       => C4::Context->preference("hide_marc"),
 431         item_level_itypes  => C4::Context->preference('item-level_itypes'),
 432         patronimages       => C4::Context->preference("patronimages"),
 433         singleBranchMode   => ( Koha::Libraries->search->count == 1 ),
 434         XSLTDetailsDisplay => C4::Context->preference("XSLTDetailsDisplay"),
 435         XSLTResultsDisplay => C4::Context->preference("XSLTResultsDisplay"),
 436         using_https        => $using_https,
 437         noItemTypeImages   => C4::Context->preference("noItemTypeImages"),
 438         marcflavour        => C4::Context->preference("marcflavour"),
 439         OPACBaseURL        => C4::Context->preference('OPACBaseURL'),
 440     );
 441     if ( $in->{'type'} eq "intranet" ) {
 442         $template->param(
 443             AmazonCoverImages                                                          => C4::Context->preference("AmazonCoverImages"),
 444             AutoLocation                                                               => C4::Context->preference("AutoLocation"),
 445             "BiblioDefaultView" . C4::Context->preference("IntranetBiblioDefaultView") => 1,
 446             CircAutocompl                                                              => C4::Context->preference("CircAutocompl"),
 447             FRBRizeEditions                                                            => C4::Context->preference("FRBRizeEditions"),
 448             IndependentBranches                                                        => C4::Context->preference("IndependentBranches"),
 449             IntranetNav                                                                => C4::Context->preference("IntranetNav"),
 450             IntranetmainUserblock                                                      => C4::Context->preference("IntranetmainUserblock"),
 451             LibraryName                                                                => C4::Context->preference("LibraryName"),
 452             LoginBranchname                                                            => ( C4::Context->userenv ? C4::Context->userenv->{"branchname"} : undef ),
 453             advancedMARCEditor                                                         => C4::Context->preference("advancedMARCEditor"),
 454             canreservefromotherbranches                                                => C4::Context->preference('canreservefromotherbranches'),
 455             intranetcolorstylesheet                                                    => C4::Context->preference("intranetcolorstylesheet"),
 456             IntranetFavicon                                                            => C4::Context->preference("IntranetFavicon"),
 457             intranetreadinghistory                                                     => C4::Context->preference("intranetreadinghistory"),
 458             intranetstylesheet                                                         => C4::Context->preference("intranetstylesheet"),
 459             IntranetUserCSS                                                            => C4::Context->preference("IntranetUserCSS"),
 460             IntranetUserJS                                                             => C4::Context->preference("IntranetUserJS"),
 461             intranetbookbag                                                            => C4::Context->preference("intranetbookbag"),
 462             suggestion                                                                 => C4::Context->preference("suggestion"),
 463             virtualshelves                                                             => C4::Context->preference("virtualshelves"),
 464             StaffSerialIssueDisplayCount                                               => C4::Context->preference("StaffSerialIssueDisplayCount"),
 465             EasyAnalyticalRecords                                                      => C4::Context->preference('EasyAnalyticalRecords'),
 466             LocalCoverImages                                                           => C4::Context->preference('LocalCoverImages'),
 467             OPACLocalCoverImages                                                       => C4::Context->preference('OPACLocalCoverImages'),
 468             AllowMultipleCovers                                                        => C4::Context->preference('AllowMultipleCovers'),
 469             EnableBorrowerFiles                                                        => C4::Context->preference('EnableBorrowerFiles'),
 470             UseKohaPlugins                                                             => C4::Context->preference('UseKohaPlugins'),
 471             UseCourseReserves                                                          => C4::Context->preference("UseCourseReserves"),
 472             useDischarge                                                               => C4::Context->preference('useDischarge'),
 473         );
 474     }
 475     else {
 476         warn "template type should be OPAC, here it is=[" . $in->{'type'} . "]" unless ( $in->{'type'} eq 'opac' );
 477
 478         #TODO : replace LibraryName syspref with 'system name', and remove this html processing
 479         my $LibraryNameTitle = C4::Context->preference("LibraryName");
 480         $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
 481         $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
 482
 483         # clean up the busc param in the session
 484         # if the page is not opac-detail and not the "add to list" page
 485         # and not the "edit comments" page
 486         if ( C4::Context->preference("OpacBrowseResults")
 487             && $in->{'template_name'} =~ /opac-(.+)\.(?:tt|tmpl)$/ ) {
 488             my $pagename = $1;
 489             unless ( $pagename =~ /^(?:MARC|ISBD)?detail$/
 490                 or $pagename =~ /^addbybiblionumber$/
 491                 or $pagename =~ /^review$/ ) {
 492                 my $sessionSearch = get_session( $sessionID || $in->{'query'}->cookie("CGISESSID") );
 493                 $sessionSearch->clear( ["busc"] ) if ( $sessionSearch->param("busc") );
 494             }
 495         }
 496
 497         # variables passed from CGI: opac_css_override and opac_search_limits.
 498         my $opac_search_limit   = $ENV{'OPAC_SEARCH_LIMIT'};
 499         my $opac_limit_override = $ENV{'OPAC_LIMIT_OVERRIDE'};
 500         my $opac_name           = '';
 501         if (
 502             ( $opac_limit_override && $opac_search_limit && $opac_search_limit =~ /branch:(\w+)/ ) ||
 503             ( $in->{'query'}->param('limit') && $in->{'query'}->param('limit') =~ /branch:(\w+)/ ) ||
 504             ( $in->{'query'}->param('multibranchlimit') && $in->{'query'}->param('multibranchlimit') =~ /multibranchlimit-(\w+)/ )
 505           ) {
 506             $opac_name = $1;    # opac_search_limit is a branch, so we use it.
 507         } elsif ( $in->{'query'}->param('multibranchlimit') ) {
 508             $opac_name = $in->{'query'}->param('multibranchlimit');
 509         } elsif ( C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv && C4::Context->userenv->{'branch'} ) {
 510             $opac_name = C4::Context->userenv->{'branch'};
 511         }
 512
 513         my $library_categories = Koha::LibraryCategories->search({categorytype => 'searchdomain', show_in_pulldown => 1}, { order_by => ['categorytype', 'categorycode']});
 514         $template->param(
 515             OpacAdditionalStylesheet                   => C4::Context->preference("OpacAdditionalStylesheet"),
 516             AnonSuggestions                       => "" . C4::Context->preference("AnonSuggestions"),
 517             BranchCategoriesLoop                  => $library_categories,
 518             opac_name                             => $opac_name,
 519             LibraryName                           => "" . C4::Context->preference("LibraryName"),
 520             LibraryNameTitle                      => "" . $LibraryNameTitle,
 521             LoginBranchname                       => C4::Context->userenv ? C4::Context->userenv->{"branchname"} : "",
 522             OPACAmazonCoverImages                 => C4::Context->preference("OPACAmazonCoverImages"),
 523             OPACFRBRizeEditions                   => C4::Context->preference("OPACFRBRizeEditions"),
 524             OpacHighlightedWords                  => C4::Context->preference("OpacHighlightedWords"),
 525             OPACShelfBrowser                      => "" . C4::Context->preference("OPACShelfBrowser"),
 526             OPACURLOpenInNewWindow                => "" . C4::Context->preference("OPACURLOpenInNewWindow"),
 527             OPACUserCSS                           => "" . C4::Context->preference("OPACUserCSS"),
 528             OpacAuthorities                       => C4::Context->preference("OpacAuthorities"),
 529             opac_css_override                     => $ENV{'OPAC_CSS_OVERRIDE'},
 530             opac_search_limit                     => $opac_search_limit,
 531             opac_limit_override                   => $opac_limit_override,
 532             OpacBrowser                           => C4::Context->preference("OpacBrowser"),
 533             OpacCloud                             => C4::Context->preference("OpacCloud"),
 534             OpacKohaUrl                           => C4::Context->preference("OpacKohaUrl"),
 535             OpacMainUserBlock                     => "" . C4::Context->preference("OpacMainUserBlock"),
 536             OpacNav                               => "" . C4::Context->preference("OpacNav"),
 537             OpacNavRight                          => "" . C4::Context->preference("OpacNavRight"),
 538             OpacNavBottom                         => "" . C4::Context->preference("OpacNavBottom"),
 539             OpacPasswordChange                    => C4::Context->preference("OpacPasswordChange"),
 540             OPACPatronDetails                     => C4::Context->preference("OPACPatronDetails"),
 541             OPACPrivacy                           => C4::Context->preference("OPACPrivacy"),
 542             OPACFinesTab                          => C4::Context->preference("OPACFinesTab"),
 543             OpacTopissue                          => C4::Context->preference("OpacTopissue"),
 544             RequestOnOpac                         => C4::Context->preference("RequestOnOpac"),
 545             'Version'                             => C4::Context->preference('Version'),
 546             hidelostitems                         => C4::Context->preference("hidelostitems"),
 547             mylibraryfirst                        => ( C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv ) ? C4::Context->userenv->{'branch'} : '',
 548             opaclayoutstylesheet                  => "" . C4::Context->preference("opaclayoutstylesheet"),
 549             opacbookbag                           => "" . C4::Context->preference("opacbookbag"),
 550             opaccredits                           => "" . C4::Context->preference("opaccredits"),
 551             OpacFavicon                           => C4::Context->preference("OpacFavicon"),
 552             opacheader                            => "" . C4::Context->preference("opacheader"),
 553             opaclanguagesdisplay                  => "" . C4::Context->preference("opaclanguagesdisplay"),
 554             opacreadinghistory                    => C4::Context->preference("opacreadinghistory"),
 555             OPACUserJS                            => C4::Context->preference("OPACUserJS"),
 556             opacuserlogin                         => "" . C4::Context->preference("opacuserlogin"),
 557             OpenLibrarySearch                     => C4::Context->preference("OpenLibrarySearch"),
 558             ShowReviewer                          => C4::Context->preference("ShowReviewer"),
 559             ShowReviewerPhoto                     => C4::Context->preference("ShowReviewerPhoto"),
 560             suggestion                            => "" . C4::Context->preference("suggestion"),
 561             virtualshelves                        => "" . C4::Context->preference("virtualshelves"),
 562             OPACSerialIssueDisplayCount           => C4::Context->preference("OPACSerialIssueDisplayCount"),
 563             OPACXSLTDetailsDisplay                => C4::Context->preference("OPACXSLTDetailsDisplay"),
 564             OPACXSLTResultsDisplay                => C4::Context->preference("OPACXSLTResultsDisplay"),
 565             SyndeticsClientCode                   => C4::Context->preference("SyndeticsClientCode"),
 566             SyndeticsEnabled                      => C4::Context->preference("SyndeticsEnabled"),
 567             SyndeticsCoverImages                  => C4::Context->preference("SyndeticsCoverImages"),
 568             SyndeticsTOC                          => C4::Context->preference("SyndeticsTOC"),
 569             SyndeticsSummary                      => C4::Context->preference("SyndeticsSummary"),
 570             SyndeticsEditions                     => C4::Context->preference("SyndeticsEditions"),
 571             SyndeticsExcerpt                      => C4::Context->preference("SyndeticsExcerpt"),
 572             SyndeticsReviews                      => C4::Context->preference("SyndeticsReviews"),
 573             SyndeticsAuthorNotes                  => C4::Context->preference("SyndeticsAuthorNotes"),
 574             SyndeticsAwards                       => C4::Context->preference("SyndeticsAwards"),
 575             SyndeticsSeries                       => C4::Context->preference("SyndeticsSeries"),
 576             SyndeticsCoverImageSize               => C4::Context->preference("SyndeticsCoverImageSize"),
 577             OPACLocalCoverImages                  => C4::Context->preference("OPACLocalCoverImages"),
 578             PatronSelfRegistration                => C4::Context->preference("PatronSelfRegistration"),
 579             PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
 580             useDischarge                 => C4::Context->preference('useDischarge'),
 581         );
 582
 583         $template->param( OpacPublic => '1' ) if ( $user || C4::Context->preference("OpacPublic") );
 584     }
 585
 586     # Check if we were asked using parameters to force a specific language
 587     if ( defined $in->{'query'}->param('language') ) {
 588
 589         # Extract the language, let C4::Languages::getlanguage choose
 590         # what to do
 591         my $language = C4::Languages::getlanguage( $in->{'query'} );
 592         my $languagecookie = C4::Templates::getlanguagecookie( $in->{'query'}, $language );
 593         if ( ref $cookie eq 'ARRAY' ) {
 594             push @{$cookie}, $languagecookie;
 595         } else {
 596             $cookie = [ $cookie, $languagecookie ];
 597         }
 598     }
 599
 600     return ( $template, $borrowernumber, $cookie, $flags );
 601 }
 602
 603 =head2 checkauth
 604
 605   ($userid, $cookie, $sessionID) = &checkauth($query, $noauth, $flagsrequired, $type);
 606
 607 Verifies that the user is authorized to run this script.  If
 608 the user is authorized, a (userid, cookie, session-id, flags)
 609 quadruple is returned.  If the user is not authorized but does
 610 not have the required privilege (see $flagsrequired below), it
 611 displays an error page and exits.  Otherwise, it displays the
 612 login page and exits.
 613
 614 Note that C<&checkauth> will return if and only if the user
 615 is authorized, so it should be called early on, before any
 616 unfinished operations (e.g., if you've opened a file, then
 617 C<&checkauth> won't close it for you).
 618
 619 C<$query> is the CGI object for the script calling C<&checkauth>.
 620
 621 The C<$noauth> argument is optional. If it is set, then no
 622 authorization is required for the script.
 623
 624 C<&checkauth> fetches user and session information from C<$query> and
 625 ensures that the user is authorized to run scripts that require
 626 authorization.
 627
 628 The C<$flagsrequired> argument specifies the required privileges
 629 the user must have if the username and password are correct.
 630 It should be specified as a reference-to-hash; keys in the hash
 631 should be the "flags" for the user, as specified in the Members
 632 intranet module. Any key specified must correspond to a "flag"
 633 in the userflags table. E.g., { circulate => 1 } would specify
 634 that the user must have the "circulate" privilege in order to
 635 proceed. To make sure that access control is correct, the
 636 C<$flagsrequired> parameter must be specified correctly.
 637
 638 Koha also has a concept of sub-permissions, also known as
 639 granular permissions.  This makes the value of each key
 640 in the C<flagsrequired> hash take on an additional
 641 meaning, i.e.,
 642
 643  1
 644
 645 The user must have access to all subfunctions of the module
 646 specified by the hash key.
 647
 648  *
 649
 650 The user must have access to at least one subfunction of the module
 651 specified by the hash key.
 652
 653  specific permission, e.g., 'export_catalog'
 654
 655 The user must have access to the specific subfunction list, which
 656 must correspond to a row in the permissions table.
 657
 658 The C<$type> argument specifies whether the template should be
 659 retrieved from the opac or intranet directory tree.  "opac" is
 660 assumed if it is not specified; however, if C<$type> is specified,
 661 "intranet" is assumed if it is not "opac".
 662
 663 If C<$query> does not have a valid session ID associated with it
 664 (i.e., the user has not logged in) or if the session has expired,
 665 C<&checkauth> presents the user with a login page (from the point of
 666 view of the original script, C<&checkauth> does not return). Once the
 667 user has authenticated, C<&checkauth> restarts the original script
 668 (this time, C<&checkauth> returns).
 669
 670 The login page is provided using a HTML::Template, which is set in the
 671 systempreferences table or at the top of this file. The variable C<$type>
 672 selects which template to use, either the opac or the intranet
 673 authentification template.
 674
 675 C<&checkauth> returns a user ID, a cookie, and a session ID. The
 676 cookie should be sent back to the browser; it verifies that the user
 677 has authenticated.
 678
 679 =cut
 680
 681 sub _version_check {
 682     my $type  = shift;
 683     my $query = shift;
 684     my $version;
 685
 686     # If version syspref is unavailable, it means Koha is being installed,
 687     # and so we must redirect to OPAC maintenance page or to the WebInstaller
 688     # also, if OpacMaintenance is ON, OPAC should redirect to maintenance
 689     if ( C4::Context->preference('OpacMaintenance') && $type eq 'opac' ) {
 690         warn "OPAC Install required, redirecting to maintenance";
 691         print $query->redirect("/cgi-bin/koha/maintenance.pl");
 692         safe_exit;
 693     }
 694     unless ( $version = C4::Context->preference('Version') ) {    # assignment, not comparison
 695         if ( $type ne 'opac' ) {
 696             warn "Install required, redirecting to Installer";
 697             print $query->redirect("/cgi-bin/koha/installer/install.pl");
 698         } else {
 699             warn "OPAC Install required, redirecting to maintenance";
 700             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 701         }
 702         safe_exit;
 703     }
 704
 705     # check that database and koha version are the same
 706     # there is no DB version, it's a fresh install,
 707     # go to web installer
 708     # there is a DB version, compare it to the code version
 709     my $kohaversion = Koha::version();
 710
 711     # remove the 3 last . to have a Perl number
 712     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
 713     $debug and print STDERR "kohaversion : $kohaversion\n";
 714     if ( $version < $kohaversion ) {
 715         my $warning = "Database update needed, redirecting to %s. Database is $version and Koha is $kohaversion";
 716         if ( $type ne 'opac' ) {
 717             warn sprintf( $warning, 'Installer' );
 718             print $query->redirect("/cgi-bin/koha/installer/install.pl?step=1&op=updatestructure");
 719         } else {
 720             warn sprintf( "OPAC: " . $warning, 'maintenance' );
 721             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 722         }
 723         safe_exit;
 724     }
 725 }
 726
 727 sub _session_log {
 728     (@_) or return 0;
 729     open my $fh, '>>', "/tmp/sessionlog" or warn "ERROR: Cannot append to /tmp/sessionlog";
 730     printf $fh join( "\n", @_ );
 731     close $fh;
 732 }
 733
 734 sub _timeout_syspref {
 735     my $timeout = C4::Context->preference('timeout') || 600;
 736
 737     # value in days, convert in seconds
 738     if ( $timeout =~ /(\d+)[dD]/ ) {
 739         $timeout = $1 * 86400;
 740     }
 741     return $timeout;
 742 }
 743
 744 sub checkauth {
 745     my $query = shift;
 746     $debug and warn "Checking Auth";
 747
 748     # $authnotrequired will be set for scripts which will run without authentication
 749     my $authnotrequired = shift;
 750     my $flagsrequired   = shift;
 751     my $type            = shift;
 752     my $emailaddress    = shift;
 753     $type = 'opac' unless $type;
 754
 755     my $dbh     = C4::Context->dbh;
 756     my $timeout = _timeout_syspref();
 757
 758     _version_check( $type, $query );
 759
 760     # state variables
 761     my $loggedin = 0;
 762     my %info;
 763     my ( $userid, $cookie, $sessionID, $flags );
 764     my $logout = $query->param('logout.x');
 765
 766     my $anon_search_history;
 767
 768     # This parameter is the name of the CAS server we want to authenticate against,
 769     # when using authentication against multiple CAS servers, as configured in Auth_cas_servers.yaml
 770     my $casparam = $query->param('cas');
 771     my $q_userid = $query->param('userid') // '';
 772
 773     # Basic authentication is incompatible with the use of Shibboleth,
 774     # as Shibboleth may return REMOTE_USER as a Shibboleth attribute,
 775     # and it may not be the attribute we want to use to match the koha login.
 776     #
 777     # Also, do not consider an empty REMOTE_USER.
 778     #
 779     # Finally, after those tests, we can assume (although if it would be better with
 780     # a syspref) that if we get a REMOTE_USER, that's from basic authentication,
 781     # and we can affect it to $userid.
 782     if ( !$shib and defined( $ENV{'REMOTE_USER'} ) and $ENV{'REMOTE_USER'} ne '' and $userid = $ENV{'REMOTE_USER'} ) {
 783
 784         # Using Basic Authentication, no cookies required
 785         $cookie = $query->cookie(
 786             -name     => 'CGISESSID',
 787             -value    => '',
 788             -expires  => '',
 789             -HttpOnly => 1,
 790         );
 791         $loggedin = 1;
 792     }
 793     elsif ( $emailaddress) {
 794         # the Google OpenID Connect passes an email address
 795     }
 796     elsif ( $sessionID = $query->cookie("CGISESSID") )
 797     {    # assignment, not comparison
 798         my $session = get_session($sessionID);
 799         C4::Context->_new_userenv($sessionID);
 800         my ( $ip, $lasttime, $sessiontype );
 801         my $s_userid = '';
 802         if ($session) {
 803             $s_userid = $session->param('id') // '';
 804             C4::Context->set_userenv(
 805                 $session->param('number'),       $s_userid,
 806                 $session->param('cardnumber'),   $session->param('firstname'),
 807                 $session->param('surname'),      $session->param('branch'),
 808                 $session->param('branchname'),   $session->param('flags'),
 809                 $session->param('emailaddress'), $session->param('branchprinter'),
 810                 $session->param('shibboleth')
 811             );
 812             C4::Context::set_shelves_userenv( 'bar', $session->param('barshelves') );
 813             C4::Context::set_shelves_userenv( 'pub', $session->param('pubshelves') );
 814             C4::Context::set_shelves_userenv( 'tot', $session->param('totshelves') );
 815             $debug and printf STDERR "AUTH_SESSION: (%s)\t%s %s - %s\n", map { $session->param($_) } qw(cardnumber firstname surname branch);
 816             $ip          = $session->param('ip');
 817             $lasttime    = $session->param('lasttime');
 818             $userid      = $s_userid;
 819             $sessiontype = $session->param('sessiontype') || '';
 820         }
 821         if ( ( $query->param('koha_login_context') && ( $q_userid ne $s_userid ) )
 822             || ( $cas && $query->param('ticket') && !C4::Context->userenv->{'id'} )
 823             || ( $shib && $shib_login && !$logout && !C4::Context->userenv->{'id'} )
 824         ) {
 825
 826             #if a user enters an id ne to the id in the current session, we need to log them in...
 827             #first we need to clear the anonymous session...
 828             $debug and warn "query id = $q_userid but session id = $s_userid";
 829             $anon_search_history = $session->param('search_history');
 830             $session->delete();
 831             $session->flush;
 832             C4::Context->_unset_userenv($sessionID);
 833             $sessionID = undef;
 834             $userid    = undef;
 835         }
 836         elsif ($logout) {
 837
 838             # voluntary logout the user
 839             # check wether the user was using their shibboleth session or a local one
 840             my $shibSuccess = C4::Context->userenv->{'shibboleth'};
 841             $session->delete();
 842             $session->flush;
 843             C4::Context->_unset_userenv($sessionID);
 844
 845             #_session_log(sprintf "%20s from %16s logged out at %30s (manually).\n", $userid,$ip,(strftime "%c",localtime));
 846             $sessionID = undef;
 847             $userid    = undef;
 848
 849             if ($cas and $caslogout) {
 850                 logout_cas($query, $type);
 851             }
 852
 853             # If we are in a shibboleth session (shibboleth is enabled, a shibboleth match attribute is set and matches koha matchpoint)
 854             if ( $shib and $shib_login and $shibSuccess and $type eq 'opac' ) {
 855
 856                 # (Note: $type eq 'opac' condition should be removed when shibboleth authentication for intranet will be implemented)
 857                 logout_shib($query);
 858             }
 859         }
 860         elsif ( !$lasttime || ( $lasttime < time() - $timeout ) ) {
 861
 862             # timed logout
 863             $info{'timed_out'} = 1;
 864             if ($session) {
 865                 $session->delete();
 866                 $session->flush;
 867             }
 868             C4::Context->_unset_userenv($sessionID);
 869
 870             #_session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,(strftime "%c",localtime));
 871             $userid    = undef;
 872             $sessionID = undef;
 873         }
 874         elsif ( C4::Context->preference('SessionRestrictionByIP') && $ip ne $ENV{'REMOTE_ADDR'} ) {
 875
 876             # Different ip than originally logged in from
 877             $info{'oldip'}        = $ip;
 878             $info{'newip'}        = $ENV{'REMOTE_ADDR'};
 879             $info{'different_ip'} = 1;
 880             $session->delete();
 881             $session->flush;
 882             C4::Context->_unset_userenv($sessionID);
 883
 884             #_session_log(sprintf "%20s from %16s logged out at %30s (ip changed to %16s).\n", $userid,$ip,(strftime "%c",localtime), $info{'newip'});
 885             $sessionID = undef;
 886             $userid    = undef;
 887         }
 888         else {
 889             $cookie = $query->cookie(
 890                 -name     => 'CGISESSID',
 891                 -value    => $session->id,
 892                 -HttpOnly => 1
 893             );
 894             $session->param( 'lasttime', time() );
 895             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...
 896                 $flags = haspermission( $userid, $flagsrequired );
 897                 if ($flags) {
 898                     $loggedin = 1;
 899                 } else {
 900                     $info{'nopermission'} = 1;
 901                 }
 902             }
 903         }
 904     }
 905     unless ( $userid || $sessionID ) {
 906
 907         #we initiate a session prior to checking for a username to allow for anonymous sessions...
 908         my $session = get_session("") or die "Auth ERROR: Cannot get_session()";
 909
 910         # Save anonymous search history in new session so it can be retrieved
 911         # by get_template_and_user to store it in user's search history after
 912         # a successful login.
 913         if ($anon_search_history) {
 914             $session->param( 'search_history', $anon_search_history );
 915         }
 916
 917         my $sessionID = $session->id;
 918         C4::Context->_new_userenv($sessionID);
 919         $cookie = $query->cookie(
 920             -name     => 'CGISESSID',
 921             -value    => $session->id,
 922             -HttpOnly => 1
 923         );
 924         my $pki_field = C4::Context->preference('AllowPKIAuth');
 925         if ( !defined($pki_field) ) {
 926             print STDERR "ERROR: Missing system preference AllowPKIAuth.\n";
 927             $pki_field = 'None';
 928         }
 929         if ( ( $cas && $query->param('ticket') )
 930             || $q_userid
 931             || ( $shib && $shib_login )
 932             || $pki_field ne 'None'
 933             || $emailaddress )
 934         {
 935             my $password    = $query->param('password');
 936             my $shibSuccess = 0;
 937
 938             my ( $return, $cardnumber );
 939
 940             # If shib is enabled and we have a shib login, does the login match a valid koha user
 941             if ( $shib && $shib_login && $type eq 'opac' ) {
 942                 my $retuserid;
 943
 944                 # Do not pass password here, else shib will not be checked in checkpw.
 945                 ( $return, $cardnumber, $retuserid ) = checkpw( $dbh, $q_userid, undef, $query );
 946                 $userid      = $retuserid;
 947                 $shibSuccess = $return;
 948                 $info{'invalidShibLogin'} = 1 unless ($return);
 949             }
 950
 951             # If shib login and match were successful, skip further login methods
 952             unless ($shibSuccess) {
 953                 if ( $cas && $query->param('ticket') ) {
 954                     my $retuserid;
 955                     ( $return, $cardnumber, $retuserid ) =
 956                       checkpw( $dbh, $userid, $password, $query, $type );
 957                     $userid = $retuserid;
 958                     $info{'invalidCasLogin'} = 1 unless ($return);
 959                 }
 960
 961                 elsif ( $emailaddress ) {
 962                     my $value = $emailaddress;
 963
 964                     # If we're looking up the email, there's a chance that the person
 965                     # doesn't have a userid. So if there is none, we pass along the
 966                     # borrower number, and the bits of code that need to know the user
 967                     # ID will have to be smart enough to handle that.
 968                     require C4::Members;
 969                     my @users_info = C4::Members::GetBorrowersWithEmail($value);
 970                     if (@users_info) {
 971
 972                         # First the userid, then the borrowernum
 973                         $value = $users_info[0][1] || $users_info[0][0];
 974                     } else {
 975                         undef $value;
 976                     }
 977                     $return = $value ? 1 : 0;
 978                     $userid = $value;
 979                 }
 980
 981                 elsif (
 982                     ( $pki_field eq 'Common Name' && $ENV{'SSL_CLIENT_S_DN_CN'} )
 983                     || ( $pki_field eq 'emailAddress'
 984                         && $ENV{'SSL_CLIENT_S_DN_Email'} )
 985                   )
 986                 {
 987                     my $value;
 988                     if ( $pki_field eq 'Common Name' ) {
 989                         $value = $ENV{'SSL_CLIENT_S_DN_CN'};
 990                     }
 991                     elsif ( $pki_field eq 'emailAddress' ) {
 992                         $value = $ENV{'SSL_CLIENT_S_DN_Email'};
 993
 994                         # If we're looking up the email, there's a chance that the person
 995                         # doesn't have a userid. So if there is none, we pass along the
 996                         # borrower number, and the bits of code that need to know the user
 997                         # ID will have to be smart enough to handle that.
 998                         require C4::Members;
 999                         my @users_info = C4::Members::GetBorrowersWithEmail($value);
1000                         if (@users_info) {
1001
1002                             # First the userid, then the borrowernum
1003                             $value = $users_info[0][1] || $users_info[0][0];
1004                         } else {
1005                             undef $value;
1006                         }
1007                     }
1008
1009                     $return = $value ? 1 : 0;
1010                     $userid = $value;
1011
1012                 }
1013                 else {
1014                     my $retuserid;
1015                     ( $return, $cardnumber, $retuserid ) =
1016                       checkpw( $dbh, $q_userid, $password, $query, $type );
1017                     $userid = $retuserid if ($retuserid);
1018                     $info{'invalid_username_or_password'} = 1 unless ($return);
1019                 }
1020             }
1021
1022             # $return: 1 = valid user, 2 = superlibrarian
1023             if ($return) {
1024
1025                 #_session_log(sprintf "%20s from %16s logged in  at %30s.\n", $userid,$ENV{'REMOTE_ADDR'},(strftime '%c', localtime));
1026                 if ( $flags = haspermission( $userid, $flagsrequired ) ) {
1027                     $loggedin = 1;
1028                 }
1029                 else {
1030                     $info{'nopermission'} = 1;
1031                     C4::Context->_unset_userenv($sessionID);
1032                 }
1033                 my ( $borrowernumber, $firstname, $surname, $userflags,
1034                     $branchcode, $branchname, $branchprinter, $emailaddress );
1035
1036                 if ( $return == 1 ) {
1037                     my $select = "
1038                     SELECT borrowernumber, firstname, surname, flags, borrowers.branchcode,
1039                     branches.branchname    as branchname,
1040                     branches.branchprinter as branchprinter,
1041                     email
1042                     FROM borrowers
1043                     LEFT JOIN branches on borrowers.branchcode=branches.branchcode
1044                     ";
1045                     my $sth = $dbh->prepare("$select where userid=?");
1046                     $sth->execute($userid);
1047                     unless ( $sth->rows ) {
1048                         $debug and print STDERR "AUTH_1: no rows for userid='$userid'\n";
1049                         $sth = $dbh->prepare("$select where cardnumber=?");
1050                         $sth->execute($cardnumber);
1051
1052                         unless ( $sth->rows ) {
1053                             $debug and print STDERR "AUTH_2a: no rows for cardnumber='$cardnumber'\n";
1054                             $sth->execute($userid);
1055                             unless ( $sth->rows ) {
1056                                 $debug and print STDERR "AUTH_2b: no rows for userid='$userid' AS cardnumber\n";
1057                             }
1058                         }
1059                     }
1060                     if ( $sth->rows ) {
1061                         ( $borrowernumber, $firstname, $surname, $userflags,
1062                             $branchcode, $branchname, $branchprinter, $emailaddress ) = $sth->fetchrow;
1063                         $debug and print STDERR "AUTH_3 results: " .
1064                           "$cardnumber,$borrowernumber,$userid,$firstname,$surname,$userflags,$branchcode,$emailaddress\n";
1065                     } else {
1066                         print STDERR "AUTH_3: no results for userid='$userid', cardnumber='$cardnumber'.\n";
1067                     }
1068
1069                     # launch a sequence to check if we have a ip for the branch, i
1070                     # if we have one we replace the branchcode of the userenv by the branch bound in the ip.
1071
1072                     my $ip = $ENV{'REMOTE_ADDR'};
1073
1074                     # if they specify at login, use that
1075                     if ( $query->param('branch') ) {
1076                         $branchcode = $query->param('branch');
1077                         my $library = Koha::Libraries->find($branchcode);
1078                         $branchname = $library? $library->branchname: '';
1079                     }
1080                     my $branches = { map { $_->branchcode => $_->unblessed } Koha::Libraries->search };
1081                     if ( $type ne 'opac' and C4::Context->boolean_preference('AutoLocation') ) {
1082
1083                         # we have to check they are coming from the right ip range
1084                         my $domain = $branches->{$branchcode}->{'branchip'};
1085                         $domain =~ s|\.\*||g;
1086                         if ( $ip !~ /^$domain/ ) {
1087                             $loggedin = 0;
1088                             $cookie = $query->cookie(
1089                                 -name     => 'CGISESSID',
1090                                 -value    => '',
1091                                 -HttpOnly => 1
1092                             );
1093                             $info{'wrongip'} = 1;
1094                         }
1095                     }
1096
1097                     foreach my $br ( keys %$branches ) {
1098
1099                         #     now we work with the treatment of ip
1100                         my $domain = $branches->{$br}->{'branchip'};
1101                         if ( $domain && $ip =~ /^$domain/ ) {
1102                             $branchcode = $branches->{$br}->{'branchcode'};
1103
1104                             # new op dev : add the branchprinter and branchname in the cookie
1105                             $branchprinter = $branches->{$br}->{'branchprinter'};
1106                             $branchname    = $branches->{$br}->{'branchname'};
1107                         }
1108                     }
1109                     $session->param( 'number',       $borrowernumber );
1110                     $session->param( 'id',           $userid );
1111                     $session->param( 'cardnumber',   $cardnumber );
1112                     $session->param( 'firstname',    $firstname );
1113                     $session->param( 'surname',      $surname );
1114                     $session->param( 'branch',       $branchcode );
1115                     $session->param( 'branchname',   $branchname );
1116                     $session->param( 'flags',        $userflags );
1117                     $session->param( 'emailaddress', $emailaddress );
1118                     $session->param( 'ip',           $session->remote_addr() );
1119                     $session->param( 'lasttime',     time() );
1120                     $session->param( 'shibboleth',   $shibSuccess );
1121                     $debug and printf STDERR "AUTH_4: (%s)\t%s %s - %s\n", map { $session->param($_) } qw(cardnumber firstname surname branch);
1122                 }
1123                 elsif ( $return == 2 ) {
1124
1125                     #We suppose the user is the superlibrarian
1126                     $borrowernumber = 0;
1127                     $session->param( 'number',       0 );
1128                     $session->param( 'id',           C4::Context->config('user') );
1129                     $session->param( 'cardnumber',   C4::Context->config('user') );
1130                     $session->param( 'firstname',    C4::Context->config('user') );
1131                     $session->param( 'surname',      C4::Context->config('user') );
1132                     $session->param( 'branch',       'NO_LIBRARY_SET' );
1133                     $session->param( 'branchname',   'NO_LIBRARY_SET' );
1134                     $session->param( 'flags',        1 );
1135                     $session->param( 'emailaddress', C4::Context->preference('KohaAdminEmailAddress') );
1136                     $session->param( 'ip',           $session->remote_addr() );
1137                     $session->param( 'lasttime',     time() );
1138                 }
1139                 C4::Context->set_userenv(
1140                     $session->param('number'),       $session->param('id'),
1141                     $session->param('cardnumber'),   $session->param('firstname'),
1142                     $session->param('surname'),      $session->param('branch'),
1143                     $session->param('branchname'),   $session->param('flags'),
1144                     $session->param('emailaddress'), $session->param('branchprinter'),
1145                     $session->param('shibboleth')
1146                 );
1147
1148             }
1149             # $return: 0 = invalid user
1150             # reset to anonymous session
1151             else {
1152                 $debug and warn "Login failed, resetting anonymous session...";
1153                 if ($userid) {
1154                     $info{'invalid_username_or_password'} = 1;
1155                     C4::Context->_unset_userenv($sessionID);
1156                 }
1157                 $session->param( 'lasttime', time() );
1158                 $session->param( 'ip',       $session->remote_addr() );
1159                 $session->param( 'sessiontype', 'anon' );
1160             }
1161         }    # END if ( $q_userid
1162         elsif ( $type eq "opac" ) {
1163
1164             # if we are here this is an anonymous session; add public lists to it and a few other items...
1165             # anonymous sessions are created only for the OPAC
1166             $debug and warn "Initiating an anonymous session...";
1167
1168             # setting a couple of other session vars...
1169             $session->param( 'ip',          $session->remote_addr() );
1170             $session->param( 'lasttime',    time() );
1171             $session->param( 'sessiontype', 'anon' );
1172         }
1173     }    # END unless ($userid)
1174
1175     # finished authentification, now respond
1176     if ( $loggedin || $authnotrequired )
1177     {
1178         # successful login
1179         unless ($cookie) {
1180             $cookie = $query->cookie(
1181                 -name     => 'CGISESSID',
1182                 -value    => '',
1183                 -HttpOnly => 1
1184             );
1185         }
1186
1187         if ( $userid ) {
1188             # track_login also depends on pref TrackLastPatronActivity
1189             my $patron = Koha::Patrons->find({ userid => $userid });
1190             $patron->track_login if $patron;
1191         }
1192
1193         return ( $userid, $cookie, $sessionID, $flags );
1194     }
1195
1196     #
1197     #
1198     # AUTH rejected, show the login/password template, after checking the DB.
1199     #
1200     #
1201
1202     # get the inputs from the incoming query
1203     my @inputs = ();
1204     foreach my $name ( param $query) {
1205         (next) if ( $name eq 'userid' || $name eq 'password' || $name eq 'ticket' );
1206         my $value = $query->param($name);
1207         push @inputs, { name => $name, value => $value };
1208     }
1209
1210     my $LibraryNameTitle = C4::Context->preference("LibraryName");
1211     $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
1212     $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
1213
1214     my $template_name = ( $type eq 'opac' ) ? 'opac-auth.tt' : 'auth.tt';
1215     my $template = C4::Templates::gettemplate( $template_name, $type, $query );
1216     $template->param(
1217         OpacAdditionalStylesheet                   => C4::Context->preference("OpacAdditionalStylesheet"),
1218         opaclayoutstylesheet                  => C4::Context->preference("opaclayoutstylesheet"),
1219         login                                 => 1,
1220         INPUTS                                => \@inputs,
1221         script_name                           => get_script_name(),
1222         casAuthentication                     => C4::Context->preference("casAuthentication"),
1223         shibbolethAuthentication              => $shib,
1224         SessionRestrictionByIP                => C4::Context->preference("SessionRestrictionByIP"),
1225         suggestion                            => C4::Context->preference("suggestion"),
1226         virtualshelves                        => C4::Context->preference("virtualshelves"),
1227         LibraryName                           => "" . C4::Context->preference("LibraryName"),
1228         LibraryNameTitle                      => "" . $LibraryNameTitle,
1229         opacuserlogin                         => C4::Context->preference("opacuserlogin"),
1230         OpacNav                               => C4::Context->preference("OpacNav"),
1231         OpacNavRight                          => C4::Context->preference("OpacNavRight"),
1232         OpacNavBottom                         => C4::Context->preference("OpacNavBottom"),
1233         opaccredits                           => C4::Context->preference("opaccredits"),
1234         OpacFavicon                           => C4::Context->preference("OpacFavicon"),
1235         opacreadinghistory                    => C4::Context->preference("opacreadinghistory"),
1236         opaclanguagesdisplay                  => C4::Context->preference("opaclanguagesdisplay"),
1237         OPACUserJS                            => C4::Context->preference("OPACUserJS"),
1238         opacbookbag                           => "" . C4::Context->preference("opacbookbag"),
1239         OpacCloud                             => C4::Context->preference("OpacCloud"),
1240         OpacTopissue                          => C4::Context->preference("OpacTopissue"),
1241         OpacAuthorities                       => C4::Context->preference("OpacAuthorities"),
1242         OpacBrowser                           => C4::Context->preference("OpacBrowser"),
1243         opacheader                            => C4::Context->preference("opacheader"),
1244         TagsEnabled                           => C4::Context->preference("TagsEnabled"),
1245         OPACUserCSS                           => C4::Context->preference("OPACUserCSS"),
1246         intranetcolorstylesheet               => C4::Context->preference("intranetcolorstylesheet"),
1247         intranetstylesheet                    => C4::Context->preference("intranetstylesheet"),
1248         intranetbookbag                       => C4::Context->preference("intranetbookbag"),
1249         IntranetNav                           => C4::Context->preference("IntranetNav"),
1250         IntranetFavicon                       => C4::Context->preference("IntranetFavicon"),
1251         IntranetUserCSS                       => C4::Context->preference("IntranetUserCSS"),
1252         IntranetUserJS                        => C4::Context->preference("IntranetUserJS"),
1253         IndependentBranches                   => C4::Context->preference("IndependentBranches"),
1254         AutoLocation                          => C4::Context->preference("AutoLocation"),
1255         wrongip                               => $info{'wrongip'},
1256         PatronSelfRegistration                => C4::Context->preference("PatronSelfRegistration"),
1257         PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
1258         opac_css_override                     => $ENV{'OPAC_CSS_OVERRIDE'},
1259     );
1260
1261     $template->param( SCO_login => 1 ) if ( $query->param('sco_user_login') );
1262     $template->param( OpacPublic => C4::Context->preference("OpacPublic") );
1263     $template->param( loginprompt => 1 ) unless $info{'nopermission'};
1264
1265     if ( $type eq 'opac' ) {
1266         require Koha::Virtualshelves;
1267         my $some_public_shelves = Koha::Virtualshelves->get_some_shelves(
1268             {
1269                 category       => 2,
1270             }
1271         );
1272         $template->param(
1273             some_public_shelves  => $some_public_shelves,
1274         );
1275     }
1276
1277     if ($cas) {
1278
1279         # Is authentication against multiple CAS servers enabled?
1280         if ( C4::Auth_with_cas::multipleAuth && !$casparam ) {
1281             my $casservers = C4::Auth_with_cas::getMultipleAuth();
1282             my @tmplservers;
1283             foreach my $key ( keys %$casservers ) {
1284                 push @tmplservers, { name => $key, value => login_cas_url( $query, $key, $type ) . "?cas=$key" };
1285             }
1286             $template->param(
1287                 casServersLoop => \@tmplservers
1288             );
1289         } else {
1290             $template->param(
1291                 casServerUrl => login_cas_url($query, undef, $type),
1292             );
1293         }
1294
1295         $template->param(
1296             invalidCasLogin => $info{'invalidCasLogin'}
1297         );
1298     }
1299
1300     if ($shib) {
1301         $template->param(
1302             shibbolethAuthentication => $shib,
1303             shibbolethLoginUrl       => login_shib_url($query),
1304         );
1305     }
1306
1307     if (C4::Context->preference('GoogleOpenIDConnect')) {
1308         if ($query->param("OpenIDConnectFailed")) {
1309             my $reason = $query->param('OpenIDConnectFailed');
1310             $template->param(invalidGoogleOpenIDConnectLogin => $reason);
1311         }
1312     }
1313
1314     $template->param(
1315         LibraryName => C4::Context->preference("LibraryName"),
1316     );
1317     $template->param(%info);
1318
1319     #    $cookie = $query->cookie(CGISESSID => $session->id
1320     #   );
1321     print $query->header(
1322         {   type              => 'text/html',
1323             charset           => 'utf-8',
1324             cookie            => $cookie,
1325             'X-Frame-Options' => 'SAMEORIGIN'
1326         }
1327       ),
1328       $template->output;
1329     safe_exit;
1330 }
1331
1332 =head2 check_api_auth
1333
1334   ($status, $cookie, $sessionId) = check_api_auth($query, $userflags);
1335
1336 Given a CGI query containing the parameters 'userid' and 'password' and/or a session
1337 cookie, determine if the user has the privileges specified by C<$userflags>.
1338
1339 C<check_api_auth> is is meant for authenticating users of web services, and
1340 consequently will always return and will not attempt to redirect the user
1341 agent.
1342
1343 If a valid session cookie is already present, check_api_auth will return a status
1344 of "ok", the cookie, and the Koha session ID.
1345
1346 If no session cookie is present, check_api_auth will check the 'userid' and 'password
1347 parameters and create a session cookie and Koha session if the supplied credentials
1348 are OK.
1349
1350 Possible return values in C<$status> are:
1351
1352 =over
1353
1354 =item "ok" -- user authenticated; C<$cookie> and C<$sessionid> have valid values.
1355
1356 =item "failed" -- credentials are not correct; C<$cookie> and C<$sessionid> are undef
1357
1358 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1359
1360 =item "expired -- session cookie has expired; API user should resubmit userid and password
1361
1362 =back
1363
1364 =cut
1365
1366 sub check_api_auth {
1367     my $query         = shift;
1368     my $flagsrequired = shift;
1369
1370     my $dbh     = C4::Context->dbh;
1371     my $timeout = _timeout_syspref();
1372
1373     unless ( C4::Context->preference('Version') ) {
1374
1375         # database has not been installed yet
1376         return ( "maintenance", undef, undef );
1377     }
1378     my $kohaversion = Koha::version();
1379     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1380     if ( C4::Context->preference('Version') < $kohaversion ) {
1381
1382         # database in need of version update; assume that
1383         # no API should be called while databsae is in
1384         # this condition.
1385         return ( "maintenance", undef, undef );
1386     }
1387
1388     # FIXME -- most of what follows is a copy-and-paste
1389     # of code from checkauth.  There is an obvious need
1390     # for refactoring to separate the various parts of
1391     # the authentication code, but as of 2007-11-19 this
1392     # is deferred so as to not introduce bugs into the
1393     # regular authentication code for Koha 3.0.
1394
1395     # see if we have a valid session cookie already
1396     # however, if a userid parameter is present (i.e., from
1397     # a form submission, assume that any current cookie
1398     # is to be ignored
1399     my $sessionID = undef;
1400     unless ( $query->param('userid') ) {
1401         $sessionID = $query->cookie("CGISESSID");
1402     }
1403     if ( $sessionID && not( $cas && $query->param('PT') ) ) {
1404         my $session = get_session($sessionID);
1405         C4::Context->_new_userenv($sessionID);
1406         if ($session) {
1407             C4::Context->set_userenv(
1408                 $session->param('number'),       $session->param('id'),
1409                 $session->param('cardnumber'),   $session->param('firstname'),
1410                 $session->param('surname'),      $session->param('branch'),
1411                 $session->param('branchname'),   $session->param('flags'),
1412                 $session->param('emailaddress'), $session->param('branchprinter')
1413             );
1414
1415             my $ip       = $session->param('ip');
1416             my $lasttime = $session->param('lasttime');
1417             my $userid   = $session->param('id');
1418             if ( $lasttime < time() - $timeout ) {
1419
1420                 # time out
1421                 $session->delete();
1422                 $session->flush;
1423                 C4::Context->_unset_userenv($sessionID);
1424                 $userid    = undef;
1425                 $sessionID = undef;
1426                 return ( "expired", undef, undef );
1427             } elsif ( C4::Context->preference('SessionRestrictionByIP') && $ip ne $ENV{'REMOTE_ADDR'} ) {
1428
1429                 # IP address changed
1430                 $session->delete();
1431                 $session->flush;
1432                 C4::Context->_unset_userenv($sessionID);
1433                 $userid    = undef;
1434                 $sessionID = undef;
1435                 return ( "expired", undef, undef );
1436             } else {
1437                 my $cookie = $query->cookie(
1438                     -name     => 'CGISESSID',
1439                     -value    => $session->id,
1440                     -HttpOnly => 1,
1441                 );
1442                 $session->param( 'lasttime', time() );
1443                 my $flags = haspermission( $userid, $flagsrequired );
1444                 if ($flags) {
1445                     return ( "ok", $cookie, $sessionID );
1446                 } else {
1447                     $session->delete();
1448                     $session->flush;
1449                     C4::Context->_unset_userenv($sessionID);
1450                     $userid    = undef;
1451                     $sessionID = undef;
1452                     return ( "failed", undef, undef );
1453                 }
1454             }
1455         } else {
1456             return ( "expired", undef, undef );
1457         }
1458     } else {
1459
1460         # new login
1461         my $userid   = $query->param('userid');
1462         my $password = $query->param('password');
1463         my ( $return, $cardnumber );
1464
1465         # Proxy CAS auth
1466         if ( $cas && $query->param('PT') ) {
1467             my $retuserid;
1468             $debug and print STDERR "## check_api_auth - checking CAS\n";
1469
1470             # In case of a CAS authentication, we use the ticket instead of the password
1471             my $PT = $query->param('PT');
1472             ( $return, $cardnumber, $userid ) = check_api_auth_cas( $dbh, $PT, $query );    # EXTERNAL AUTH
1473         } else {
1474
1475             # User / password auth
1476             unless ( $userid and $password ) {
1477
1478                 # caller did something wrong, fail the authenticateion
1479                 return ( "failed", undef, undef );
1480             }
1481             ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password, $query );
1482         }
1483
1484         if ( $return and haspermission( $userid, $flagsrequired ) ) {
1485             my $session = get_session("");
1486             return ( "failed", undef, undef ) unless $session;
1487
1488             my $sessionID = $session->id;
1489             C4::Context->_new_userenv($sessionID);
1490             my $cookie = $query->cookie(
1491                 -name     => 'CGISESSID',
1492                 -value    => $sessionID,
1493                 -HttpOnly => 1,
1494             );
1495             if ( $return == 1 ) {
1496                 my (
1497                     $borrowernumber, $firstname,  $surname,
1498                     $userflags,      $branchcode, $branchname,
1499                     $branchprinter,  $emailaddress
1500                 );
1501                 my $sth =
1502                   $dbh->prepare(
1503 "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=?"
1504                   );
1505                 $sth->execute($userid);
1506                 (
1507                     $borrowernumber, $firstname,  $surname,
1508                     $userflags,      $branchcode, $branchname,
1509                     $branchprinter,  $emailaddress
1510                 ) = $sth->fetchrow if ( $sth->rows );
1511
1512                 unless ( $sth->rows ) {
1513                     my $sth = $dbh->prepare(
1514 "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=?"
1515                     );
1516                     $sth->execute($cardnumber);
1517                     (
1518                         $borrowernumber, $firstname,  $surname,
1519                         $userflags,      $branchcode, $branchname,
1520                         $branchprinter,  $emailaddress
1521                     ) = $sth->fetchrow if ( $sth->rows );
1522
1523                     unless ( $sth->rows ) {
1524                         $sth->execute($userid);
1525                         (
1526                             $borrowernumber, $firstname,  $surname,       $userflags,
1527                             $branchcode,     $branchname, $branchprinter, $emailaddress
1528                         ) = $sth->fetchrow if ( $sth->rows );
1529                     }
1530                 }
1531
1532                 my $ip = $ENV{'REMOTE_ADDR'};
1533
1534                 # if they specify at login, use that
1535                 if ( $query->param('branch') ) {
1536                     $branchcode = $query->param('branch');
1537                     my $library = Koha::Libraries->find($branchcode);
1538                     $branchname = $library? $library->branchname: '';
1539                 }
1540                 my $branches = { map { $_->branchcode => $_->unblessed } Koha::Libraries->search };
1541                 foreach my $br ( keys %$branches ) {
1542
1543                     #     now we work with the treatment of ip
1544                     my $domain = $branches->{$br}->{'branchip'};
1545                     if ( $domain && $ip =~ /^$domain/ ) {
1546                         $branchcode = $branches->{$br}->{'branchcode'};
1547
1548                         # new op dev : add the branchprinter and branchname in the cookie
1549                         $branchprinter = $branches->{$br}->{'branchprinter'};
1550                         $branchname    = $branches->{$br}->{'branchname'};
1551                     }
1552                 }
1553                 $session->param( 'number',       $borrowernumber );
1554                 $session->param( 'id',           $userid );
1555                 $session->param( 'cardnumber',   $cardnumber );
1556                 $session->param( 'firstname',    $firstname );
1557                 $session->param( 'surname',      $surname );
1558                 $session->param( 'branch',       $branchcode );
1559                 $session->param( 'branchname',   $branchname );
1560                 $session->param( 'flags',        $userflags );
1561                 $session->param( 'emailaddress', $emailaddress );
1562                 $session->param( 'ip',           $session->remote_addr() );
1563                 $session->param( 'lasttime',     time() );
1564             } elsif ( $return == 2 ) {
1565
1566                 #We suppose the user is the superlibrarian
1567                 $session->param( 'number',       0 );
1568                 $session->param( 'id',           C4::Context->config('user') );
1569                 $session->param( 'cardnumber',   C4::Context->config('user') );
1570                 $session->param( 'firstname',    C4::Context->config('user') );
1571                 $session->param( 'surname',      C4::Context->config('user') );
1572                 $session->param( 'branch',       'NO_LIBRARY_SET' );
1573                 $session->param( 'branchname',   'NO_LIBRARY_SET' );
1574                 $session->param( 'flags',        1 );
1575                 $session->param( 'emailaddress', C4::Context->preference('KohaAdminEmailAddress') );
1576                 $session->param( 'ip',           $session->remote_addr() );
1577                 $session->param( 'lasttime',     time() );
1578             }
1579             C4::Context->set_userenv(
1580                 $session->param('number'),       $session->param('id'),
1581                 $session->param('cardnumber'),   $session->param('firstname'),
1582                 $session->param('surname'),      $session->param('branch'),
1583                 $session->param('branchname'),   $session->param('flags'),
1584                 $session->param('emailaddress'), $session->param('branchprinter')
1585             );
1586             return ( "ok", $cookie, $sessionID );
1587         } else {
1588             return ( "failed", undef, undef );
1589         }
1590     }
1591 }
1592
1593 =head2 check_cookie_auth
1594
1595   ($status, $sessionId) = check_api_auth($cookie, $userflags);
1596
1597 Given a CGISESSID cookie set during a previous login to Koha, determine
1598 if the user has the privileges specified by C<$userflags>.
1599
1600 C<check_cookie_auth> is meant for authenticating special services
1601 such as tools/upload-file.pl that are invoked by other pages that
1602 have been authenticated in the usual way.
1603
1604 Possible return values in C<$status> are:
1605
1606 =over
1607
1608 =item "ok" -- user authenticated; C<$sessionID> have valid values.
1609
1610 =item "failed" -- credentials are not correct; C<$sessionid> are undef
1611
1612 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1613
1614 =item "expired -- session cookie has expired; API user should resubmit userid and password
1615
1616 =back
1617
1618 =cut
1619
1620 sub check_cookie_auth {
1621     my $cookie        = shift;
1622     my $flagsrequired = shift;
1623     my $params        = shift;
1624
1625     my $remote_addr = $params->{remote_addr} || $ENV{REMOTE_ADDR};
1626     my $dbh     = C4::Context->dbh;
1627     my $timeout = _timeout_syspref();
1628
1629     unless ( C4::Context->preference('Version') ) {
1630
1631         # database has not been installed yet
1632         return ( "maintenance", undef );
1633     }
1634     my $kohaversion = Koha::version();
1635     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1636     if ( C4::Context->preference('Version') < $kohaversion ) {
1637
1638         # database in need of version update; assume that
1639         # no API should be called while databsae is in
1640         # this condition.
1641         return ( "maintenance", undef );
1642     }
1643
1644     # FIXME -- most of what follows is a copy-and-paste
1645     # of code from checkauth.  There is an obvious need
1646     # for refactoring to separate the various parts of
1647     # the authentication code, but as of 2007-11-23 this
1648     # is deferred so as to not introduce bugs into the
1649     # regular authentication code for Koha 3.0.
1650
1651     # see if we have a valid session cookie already
1652     # however, if a userid parameter is present (i.e., from
1653     # a form submission, assume that any current cookie
1654     # is to be ignored
1655     unless ( defined $cookie and $cookie ) {
1656         return ( "failed", undef );
1657     }
1658     my $sessionID = $cookie;
1659     my $session   = get_session($sessionID);
1660     C4::Context->_new_userenv($sessionID);
1661     if ($session) {
1662         C4::Context->set_userenv(
1663             $session->param('number'),       $session->param('id'),
1664             $session->param('cardnumber'),   $session->param('firstname'),
1665             $session->param('surname'),      $session->param('branch'),
1666             $session->param('branchname'),   $session->param('flags'),
1667             $session->param('emailaddress'), $session->param('branchprinter')
1668         );
1669
1670         my $ip       = $session->param('ip');
1671         my $lasttime = $session->param('lasttime');
1672         my $userid   = $session->param('id');
1673         if ( $lasttime < time() - $timeout ) {
1674
1675             # time out
1676             $session->delete();
1677             $session->flush;
1678             C4::Context->_unset_userenv($sessionID);
1679             $userid    = undef;
1680             $sessionID = undef;
1681             return ("expired", undef);
1682         } elsif ( C4::Context->preference('SessionRestrictionByIP') && $ip ne $remote_addr ) {
1683
1684             # IP address changed
1685             $session->delete();
1686             $session->flush;
1687             C4::Context->_unset_userenv($sessionID);
1688             $userid    = undef;
1689             $sessionID = undef;
1690             return ( "expired", undef );
1691         } else {
1692             $session->param( 'lasttime', time() );
1693             my $flags = haspermission( $userid, $flagsrequired );
1694             if ($flags) {
1695                 return ( "ok", $sessionID );
1696             } else {
1697                 $session->delete();
1698                 $session->flush;
1699                 C4::Context->_unset_userenv($sessionID);
1700                 $userid    = undef;
1701                 $sessionID = undef;
1702                 return ( "failed", undef );
1703             }
1704         }
1705     } else {
1706         return ( "expired", undef );
1707     }
1708 }
1709
1710 =head2 get_session
1711
1712   use CGI::Session;
1713   my $session = get_session($sessionID);
1714
1715 Given a session ID, retrieve the CGI::Session object used to store
1716 the session's state.  The session object can be used to store
1717 data that needs to be accessed by different scripts during a
1718 user's session.
1719
1720 If the C<$sessionID> parameter is an empty string, a new session
1721 will be created.
1722
1723 =cut
1724
1725 sub get_session {
1726     my $sessionID      = shift;
1727     my $storage_method = C4::Context->preference('SessionStorage');
1728     my $dbh            = C4::Context->dbh;
1729     my $session;
1730     if ( $storage_method eq 'mysql' ) {
1731         $session = new CGI::Session( "driver:MySQL;serializer:yaml;id:md5", $sessionID, { Handle => $dbh } );
1732     }
1733     elsif ( $storage_method eq 'Pg' ) {
1734         $session = new CGI::Session( "driver:PostgreSQL;serializer:yaml;id:md5", $sessionID, { Handle => $dbh } );
1735     }
1736     elsif ( $storage_method eq 'memcached' && Koha::Caches->get_instance->memcached_cache ) {
1737         my $memcached = Koha::Caches->get_instance()->memcached_cache;
1738         $session = new CGI::Session( "driver:memcached;serializer:yaml;id:md5", $sessionID, { Memcached => $memcached } );
1739     }
1740     else {
1741         # catch all defaults to tmp should work on all systems
1742         my $dir = File::Spec->tmpdir;
1743         my $instance = C4::Context->config( 'database' ); #actually for packages not exactly the instance name, but generally safer to leave it as it is
1744         $session = new CGI::Session( "driver:File;serializer:yaml;id:md5", $sessionID, { Directory => "$dir/cgisess_$instance" } );
1745     }
1746     return $session;
1747 }
1748
1749
1750 # FIXME no_set_userenv may be replaced with force_branchcode_for_userenv
1751 # (or something similar)
1752 # Currently it's only passed from C4::SIP::ILS::Patron::check_password, but
1753 # not having a userenv defined could cause a crash.
1754 sub checkpw {
1755     my ( $dbh, $userid, $password, $query, $type, $no_set_userenv ) = @_;
1756     $type = 'opac' unless $type;
1757     if ($ldap) {
1758         $debug and print STDERR "## checkpw - checking LDAP\n";
1759         my ( $retval, $retcard, $retuserid ) = checkpw_ldap(@_);    # EXTERNAL AUTH
1760         return 0 if $retval == -1;                                  # Incorrect password for LDAP login attempt
1761         ($retval) and return ( $retval, $retcard, $retuserid );
1762     }
1763
1764     if ( $cas && $query && $query->param('ticket') ) {
1765         $debug and print STDERR "## checkpw - checking CAS\n";
1766
1767         # In case of a CAS authentication, we use the ticket instead of the password
1768         my $ticket = $query->param('ticket');
1769         $query->delete('ticket');                                   # remove ticket to come back to original URL
1770         my ( $retval, $retcard, $retuserid ) = checkpw_cas( $dbh, $ticket, $query, $type );    # EXTERNAL AUTH
1771         ($retval) and return ( $retval, $retcard, $retuserid );
1772         return 0;
1773     }
1774
1775     # If we are in a shibboleth session (shibboleth is enabled, and a shibboleth match attribute is present)
1776     # Check for password to asertain whether we want to be testing against shibboleth or another method this
1777     # time around.
1778     if ( $shib && $shib_login && !$password ) {
1779
1780         $debug and print STDERR "## checkpw - checking Shibboleth\n";
1781
1782         # In case of a Shibboleth authentication, we expect a shibboleth user attribute
1783         # (defined under shibboleth mapping in koha-conf.xml) to contain the login of the
1784         # shibboleth-authenticated user
1785
1786         # Then, we check if it matches a valid koha user
1787         if ($shib_login) {
1788             my ( $retval, $retcard, $retuserid ) = C4::Auth_with_shibboleth::checkpw_shib($shib_login);    # EXTERNAL AUTH
1789             ($retval) and return ( $retval, $retcard, $retuserid );
1790             return 0;
1791         }
1792     }
1793
1794     # INTERNAL AUTH
1795     return checkpw_internal( $dbh, $userid, $password, $no_set_userenv);
1796 }
1797
1798 sub checkpw_internal {
1799     my ( $dbh, $userid, $password, $no_set_userenv ) = @_;
1800
1801     $password = Encode::encode( 'UTF-8', $password )
1802       if Encode::is_utf8($password);
1803
1804     if ( $userid && $userid eq C4::Context->config('user') ) {
1805         if ( $password && $password eq C4::Context->config('pass') ) {
1806
1807             # Koha superuser account
1808             #     C4::Context->set_userenv(0,0,C4::Context->config('user'),C4::Context->config('user'),C4::Context->config('user'),"",1);
1809             return 2;
1810         }
1811         else {
1812             return 0;
1813         }
1814     }
1815
1816     my $sth =
1817       $dbh->prepare(
1818         "select password,cardnumber,borrowernumber,userid,firstname,surname,borrowers.branchcode,branches.branchname,flags from borrowers join branches on borrowers.branchcode=branches.branchcode where userid=?"
1819       );
1820     $sth->execute($userid);
1821     if ( $sth->rows ) {
1822         my ( $stored_hash, $cardnumber, $borrowernumber, $userid, $firstname,
1823             $surname, $branchcode, $branchname, $flags )
1824           = $sth->fetchrow;
1825
1826         if ( checkpw_hash( $password, $stored_hash ) ) {
1827
1828             C4::Context->set_userenv( "$borrowernumber", $userid, $cardnumber,
1829                 $firstname, $surname, $branchcode, $branchname, $flags ) unless $no_set_userenv;
1830             return 1, $cardnumber, $userid;
1831         }
1832     }
1833     $sth =
1834       $dbh->prepare(
1835         "select password,cardnumber,borrowernumber,userid,firstname,surname,borrowers.branchcode,branches.branchname,flags from borrowers join branches on borrowers.branchcode=branches.branchcode where cardnumber=?"
1836       );
1837     $sth->execute($userid);
1838     if ( $sth->rows ) {
1839         my ( $stored_hash, $cardnumber, $borrowernumber, $userid, $firstname,
1840             $surname, $branchcode, $branchname, $flags )
1841           = $sth->fetchrow;
1842
1843         if ( checkpw_hash( $password, $stored_hash ) ) {
1844
1845             C4::Context->set_userenv( $borrowernumber, $userid, $cardnumber,
1846                 $firstname, $surname, $branchcode, $branchname, $flags ) unless $no_set_userenv;
1847             return 1, $cardnumber, $userid;
1848         }
1849     }
1850     if ( $userid && $userid eq 'demo'
1851         && "$password" eq 'demo'
1852         && C4::Context->config('demo') )
1853     {
1854
1855         # DEMO => the demo user is allowed to do everything (if demo set to 1 in koha.conf
1856         # some features won't be effective : modify systempref, modify MARC structure,
1857         return 2;
1858     }
1859     return 0;
1860 }
1861
1862 sub checkpw_hash {
1863     my ( $password, $stored_hash ) = @_;
1864
1865     return if $stored_hash eq '!';
1866
1867     # check what encryption algorithm was implemented: Bcrypt - if the hash starts with '$2' it is Bcrypt else md5
1868     my $hash;
1869     if ( substr( $stored_hash, 0, 2 ) eq '$2' ) {
1870         $hash = hash_password( $password, $stored_hash );
1871     } else {
1872         $hash = md5_base64($password);
1873     }
1874     return $hash eq $stored_hash;
1875 }
1876
1877 =head2 getuserflags
1878
1879     my $authflags = getuserflags($flags, $userid, [$dbh]);
1880
1881 Translates integer flags into permissions strings hash.
1882
1883 C<$flags> is the integer userflags value ( borrowers.userflags )
1884 C<$userid> is the members.userid, used for building subpermissions
1885 C<$authflags> is a hashref of permissions
1886
1887 =cut
1888
1889 sub getuserflags {
1890     my $flags  = shift;
1891     my $userid = shift;
1892     my $dbh    = @_ ? shift : C4::Context->dbh;
1893     my $userflags;
1894     {
1895         # I don't want to do this, but if someone logs in as the database
1896         # user, it would be preferable not to spam them to death with
1897         # numeric warnings. So, we make $flags numeric.
1898         no warnings 'numeric';
1899         $flags += 0;
1900     }
1901     my $sth = $dbh->prepare("SELECT bit, flag, defaulton FROM userflags");
1902     $sth->execute;
1903
1904     while ( my ( $bit, $flag, $defaulton ) = $sth->fetchrow ) {
1905         if ( ( $flags & ( 2**$bit ) ) || $defaulton ) {
1906             $userflags->{$flag} = 1;
1907         }
1908         else {
1909             $userflags->{$flag} = 0;
1910         }
1911     }
1912
1913     # get subpermissions and merge with top-level permissions
1914     my $user_subperms = get_user_subpermissions($userid);
1915     foreach my $module ( keys %$user_subperms ) {
1916         next if $userflags->{$module} == 1;    # user already has permission for everything in this module
1917         $userflags->{$module} = $user_subperms->{$module};
1918     }
1919
1920     return $userflags;
1921 }
1922
1923 =head2 get_user_subpermissions
1924
1925   $user_perm_hashref = get_user_subpermissions($userid);
1926
1927 Given the userid (note, not the borrowernumber) of a staff user,
1928 return a hashref of hashrefs of the specific subpermissions
1929 accorded to the user.  An example return is
1930
1931  {
1932     tools => {
1933         export_catalog => 1,
1934         import_patrons => 1,
1935     }
1936  }
1937
1938 The top-level hash-key is a module or function code from
1939 userflags.flag, while the second-level key is a code
1940 from permissions.
1941
1942 The results of this function do not give a complete picture
1943 of the functions that a staff user can access; it is also
1944 necessary to check borrowers.flags.
1945
1946 =cut
1947
1948 sub get_user_subpermissions {
1949     my $userid = shift;
1950
1951     my $dbh = C4::Context->dbh;
1952     my $sth = $dbh->prepare( "SELECT flag, user_permissions.code
1953                              FROM user_permissions
1954                              JOIN permissions USING (module_bit, code)
1955                              JOIN userflags ON (module_bit = bit)
1956                              JOIN borrowers USING (borrowernumber)
1957                              WHERE userid = ?" );
1958     $sth->execute($userid);
1959
1960     my $user_perms = {};
1961     while ( my $perm = $sth->fetchrow_hashref ) {
1962         $user_perms->{ $perm->{'flag'} }->{ $perm->{'code'} } = 1;
1963     }
1964     return $user_perms;
1965 }
1966
1967 =head2 get_all_subpermissions
1968
1969   my $perm_hashref = get_all_subpermissions();
1970
1971 Returns a hashref of hashrefs defining all specific
1972 permissions currently defined.  The return value
1973 has the same structure as that of C<get_user_subpermissions>,
1974 except that the innermost hash value is the description
1975 of the subpermission.
1976
1977 =cut
1978
1979 sub get_all_subpermissions {
1980     my $dbh = C4::Context->dbh;
1981     my $sth = $dbh->prepare( "SELECT flag, code
1982                              FROM permissions
1983                              JOIN userflags ON (module_bit = bit)" );
1984     $sth->execute();
1985
1986     my $all_perms = {};
1987     while ( my $perm = $sth->fetchrow_hashref ) {
1988         $all_perms->{ $perm->{'flag'} }->{ $perm->{'code'} } = 1;
1989     }
1990     return $all_perms;
1991 }
1992
1993 =head2 haspermission
1994
1995   $flags = ($userid, $flagsrequired);
1996
1997 C<$userid> the userid of the member
1998 C<$flags> is a hashref of required flags like C<$borrower-&lt;{authflags}>
1999
2000 Returns member's flags or 0 if a permission is not met.
2001
2002 =cut
2003
2004 sub haspermission {
2005     my ( $userid, $flagsrequired ) = @_;
2006     my $sth = C4::Context->dbh->prepare("SELECT flags FROM borrowers WHERE userid=?");
2007     $sth->execute($userid);
2008     my $row = $sth->fetchrow();
2009     my $flags = getuserflags( $row, $userid );
2010     if ( $userid eq C4::Context->config('user') ) {
2011
2012         # Super User Account from /etc/koha.conf
2013         $flags->{'superlibrarian'} = 1;
2014     }
2015     elsif ( $userid eq 'demo' && C4::Context->config('demo') ) {
2016
2017         # Demo user that can do "anything" (demo=1 in /etc/koha.conf)
2018         $flags->{'superlibrarian'} = 1;
2019     }
2020
2021     return $flags if $flags->{superlibrarian};
2022
2023     foreach my $module ( keys %$flagsrequired ) {
2024         my $subperm = $flagsrequired->{$module};
2025         if ( $subperm eq '*' ) {
2026             return 0 unless ( $flags->{$module} == 1 or ref( $flags->{$module} ) );
2027         } else {
2028             return 0 unless (
2029                 ( defined $flags->{$module} and
2030                     $flags->{$module} == 1 )
2031                 or
2032                 ( ref( $flags->{$module} ) and
2033                     exists $flags->{$module}->{$subperm} and
2034                     $flags->{$module}->{$subperm} == 1 )
2035             );
2036         }
2037     }
2038     return $flags;
2039
2040     #FIXME - This fcn should return the failed permission so a suitable error msg can be delivered.
2041 }
2042
2043 sub getborrowernumber {
2044     my ($userid) = @_;
2045     my $userenv = C4::Context->userenv;
2046     if ( defined($userenv) && ref($userenv) eq 'HASH' && $userenv->{number} ) {
2047         return $userenv->{number};
2048     }
2049     my $dbh = C4::Context->dbh;
2050     for my $field ( 'userid', 'cardnumber' ) {
2051         my $sth =
2052           $dbh->prepare("select borrowernumber from borrowers where $field=?");
2053         $sth->execute($userid);
2054         if ( $sth->rows ) {
2055             my ($bnumber) = $sth->fetchrow;
2056             return $bnumber;
2057         }
2058     }
2059     return 0;
2060 }
2061
2062 END { }    # module clean-up code here (global destructor)
2063 1;
2064 __END__
2065
2066 =head1 SEE ALSO
2067
2068 CGI(3)
2069
2070 C4::Output(3)
2071
2072 Crypt::Eksblowfish::Bcrypt(3)
2073
2074 Digest::MD5(3)
2075
2076 =cut