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 under the
   8 # terms of the GNU General Public License as published by the Free Software
   9 # Foundation; either version 2 of the License, or (at your option) any later
  10 # version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  14 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License along
  17 # with Koha; if not, write to the Free Software Foundation, Inc.,
  18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19
  20 use strict;
  21 use warnings;
  22 use Digest::MD5 qw(md5_base64);
  23 use JSON qw/encode_json/;
  24 use URI::Escape;
  25 use CGI::Session;
  26
  27 require Exporter;
  28 use C4::Context;
  29 use C4::Templates;    # to get the template
  30 use C4::Languages;
  31 use C4::Branch; # GetBranches
  32 use C4::Search::History;
  33 use C4::VirtualShelves;
  34 use Koha::AuthUtils qw(hash_password);
  35 use POSIX qw/strftime/;
  36 use List::MoreUtils qw/ any /;
  37
  38 # use utf8;
  39 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug $ldap $cas $caslogout);
  40
  41 BEGIN {
  42     sub psgi_env { any { /^psgi\./ } keys %ENV }
  43     sub safe_exit {
  44     if ( psgi_env ) { die 'psgi:exit' }
  45     else { exit }
  46     }
  47     $VERSION     = 3.07.00.049;   # set version for version checking
  48
  49     $debug       = $ENV{DEBUG};
  50     @ISA         = qw(Exporter);
  51     @EXPORT      = qw(&checkauth &get_template_and_user &haspermission &get_user_subpermissions);
  52     @EXPORT_OK   = qw(&check_api_auth &get_session &check_cookie_auth &checkpw &checkpw_internal &checkpw_hash
  53                       &get_all_subpermissions &get_user_subpermissions
  54                    );
  55     %EXPORT_TAGS = ( EditPermissions => [qw(get_all_subpermissions get_user_subpermissions)] );
  56     $ldap        = C4::Context->config('useldapserver') || 0;
  57     $cas         = C4::Context->preference('casAuthentication');
  58     $caslogout   = C4::Context->preference('casLogout');
  59     require C4::Auth_with_cas;             # no import
  60     if ($ldap) {
  61     require C4::Auth_with_ldap;
  62     import C4::Auth_with_ldap qw(checkpw_ldap);
  63     }
  64     if ($cas) {
  65         import  C4::Auth_with_cas qw(check_api_auth_cas checkpw_cas login_cas logout_cas login_cas_url);
  66     }
  67
  68 }
  69
  70 =head1 NAME
  71
  72 C4::Auth - Authenticates Koha users
  73
  74 =head1 SYNOPSIS
  75
  76   use CGI;
  77   use C4::Auth;
  78   use C4::Output;
  79
  80   my $query = new CGI;
  81
  82   my ($template, $borrowernumber, $cookie)
  83     = get_template_and_user(
  84         {
  85             template_name   => "opac-main.tmpl",
  86             query           => $query,
  87       type            => "opac",
  88       authnotrequired => 0,
  89       flagsrequired   => {borrow => 1, catalogue => '*', tools => 'import_patrons' },
  90   }
  91     );
  92
  93   output_html_with_http_headers $query, $cookie, $template->output;
  94
  95 =head1 DESCRIPTION
  96
  97 The main function of this module is to provide
  98 authentification. However the get_template_and_user function has
  99 been provided so that a users login information is passed along
 100 automatically. This gets loaded into the template.
 101
 102 =head1 FUNCTIONS
 103
 104 =head2 get_template_and_user
 105
 106  my ($template, $borrowernumber, $cookie)
 107      = get_template_and_user(
 108        {
 109          template_name   => "opac-main.tmpl",
 110          query           => $query,
 111          type            => "opac",
 112          authnotrequired => 0,
 113          flagsrequired   => {borrow => 1, catalogue => '*', tools => 'import_patrons' },
 114        }
 115      );
 116
 117 This call passes the C<query>, C<flagsrequired> and C<authnotrequired>
 118 to C<&checkauth> (in this module) to perform authentification.
 119 See C<&checkauth> for an explanation of these parameters.
 120
 121 The C<template_name> is then used to find the correct template for
 122 the page. The authenticated users details are loaded onto the
 123 template in the HTML::Template LOOP variable C<USER_INFO>. Also the
 124 C<sessionID> is passed to the template. This can be used in templates
 125 if cookies are disabled. It needs to be put as and input to every
 126 authenticated page.
 127
 128 More information on the C<gettemplate> sub can be found in the
 129 Output.pm module.
 130
 131 =cut
 132
 133 sub get_template_and_user {
 134
 135     my $in       = shift;
 136     my ( $user, $cookie, $sessionID, $flags );
 137
 138     C4::Context->interface($in->{type});
 139
 140     $in->{'authnotrequired'} ||= 0;
 141     my $template = C4::Templates::gettemplate(
 142         $in->{'template_name'},
 143         $in->{'type'},
 144         $in->{'query'},
 145         $in->{'is_plugin'}
 146     );
 147
 148     if ( $in->{'template_name'} !~m/maintenance/ ) {
 149         ( $user, $cookie, $sessionID, $flags ) = checkauth(
 150             $in->{'query'},
 151             $in->{'authnotrequired'},
 152             $in->{'flagsrequired'},
 153             $in->{'type'}
 154         );
 155     }
 156
 157     my $borrowernumber;
 158     if ($user) {
 159         require C4::Members;
 160         # It's possible for $user to be the borrowernumber if they don't have a
 161         # userid defined (and are logging in through some other method, such
 162         # as SSL certs against an email address)
 163         $borrowernumber = getborrowernumber($user) if defined($user);
 164         if (!defined($borrowernumber) && defined($user)) {
 165             my $borrower = C4::Members::GetMember(borrowernumber => $user);
 166             if ($borrower) {
 167                 $borrowernumber = $user;
 168                 # A bit of a hack, but I don't know there's a nicer way
 169                 # to do it.
 170                 $user = $borrower->{firstname} . ' ' . $borrower->{surname};
 171             }
 172         }
 173
 174         # user info
 175         $template->param( loggedinusername => $user );
 176         $template->param( sessionID        => $sessionID );
 177
 178         my ($total, $pubshelves, $barshelves) = C4::VirtualShelves::GetSomeShelfNames($borrowernumber, 'MASTHEAD');
 179         $template->param(
 180             pubshelves     => $total->{pubtotal},
 181             pubshelvesloop => $pubshelves,
 182             barshelves      => $total->{bartotal},
 183             barshelvesloop  => $barshelves,
 184         );
 185
 186         my ( $borr ) = C4::Members::GetMemberDetails( $borrowernumber );
 187         my @bordat;
 188         $bordat[0] = $borr;
 189         $template->param( "USER_INFO" => \@bordat );
 190
 191         my $all_perms = get_all_subpermissions();
 192
 193         my @flagroots = qw(circulate catalogue parameters borrowers permissions reserveforothers borrow
 194                             editcatalogue updatecharges management tools editauthorities serials reports acquisition);
 195         # We are going to use the $flags returned by checkauth
 196         # to create the template's parameters that will indicate
 197         # which menus the user can access.
 198         if ( $flags && $flags->{superlibrarian}==1 ) {
 199             $template->param( CAN_user_circulate        => 1 );
 200             $template->param( CAN_user_catalogue        => 1 );
 201             $template->param( CAN_user_parameters       => 1 );
 202             $template->param( CAN_user_borrowers        => 1 );
 203             $template->param( CAN_user_permissions      => 1 );
 204             $template->param( CAN_user_reserveforothers => 1 );
 205             $template->param( CAN_user_borrow           => 1 );
 206             $template->param( CAN_user_editcatalogue    => 1 );
 207             $template->param( CAN_user_updatecharges    => 1 );
 208             $template->param( CAN_user_acquisition      => 1 );
 209             $template->param( CAN_user_management       => 1 );
 210             $template->param( CAN_user_tools            => 1 );
 211             $template->param( CAN_user_editauthorities  => 1 );
 212             $template->param( CAN_user_serials          => 1 );
 213             $template->param( CAN_user_reports          => 1 );
 214             $template->param( CAN_user_staffaccess      => 1 );
 215             $template->param( CAN_user_plugins          => 1 );
 216             $template->param( CAN_user_coursereserves   => 1 );
 217             foreach my $module (keys %$all_perms) {
 218                 foreach my $subperm (keys %{ $all_perms->{$module} }) {
 219                     $template->param( "CAN_user_${module}_${subperm}" => 1 );
 220                 }
 221             }
 222         }
 223
 224         if ( $flags ) {
 225             foreach my $module (keys %$all_perms) {
 226                 if ( $flags->{$module} == 1) {
 227                     foreach my $subperm (keys %{ $all_perms->{$module} }) {
 228                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 229                     }
 230                 } elsif ( ref($flags->{$module}) ) {
 231                     foreach my $subperm (keys %{ $flags->{$module} } ) {
 232                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 233                     }
 234                 }
 235             }
 236         }
 237
 238         if ($flags) {
 239             foreach my $module (keys %$flags) {
 240                 if ( $flags->{$module} == 1 or ref($flags->{$module}) ) {
 241                     $template->param( "CAN_user_$module" => 1 );
 242                     if ($module eq "parameters") {
 243                         $template->param( CAN_user_management => 1 );
 244                     }
 245                 }
 246             }
 247         }
 248         # Logged-in opac search history
 249         # If the requested template is an opac one and opac search history is enabled
 250         if ($in->{type} eq 'opac' && C4::Context->preference('EnableOpacSearchHistory')) {
 251             my $dbh = C4::Context->dbh;
 252             my $query = "SELECT COUNT(*) FROM search_history WHERE userid=?";
 253             my $sth = $dbh->prepare($query);
 254             $sth->execute($borrowernumber);
 255
 256             # If at least one search has already been performed
 257             if ($sth->fetchrow_array > 0) {
 258                 # We show the link in opac
 259                 $template->param( EnableOpacSearchHistory => 1 );
 260             }
 261
 262             # And if there are searches performed when the user was not logged in,
 263             # we add them to the logged-in search history
 264             my @recentSearches = C4::Search::History::get_from_session({ cgi => $in->{'query'} });
 265             if (@recentSearches) {
 266                 my $dbh = C4::Context->dbh;
 267                 my $query = q{
 268                     INSERT INTO search_history(userid, sessionid, query_desc, query_cgi, type,  total, time )
 269                     VALUES (?, ?, ?, ?, ?, ?, ?)
 270                 };
 271
 272                 my $sth = $dbh->prepare($query);
 273                 $sth->execute( $borrowernumber,
 274                            $in->{query}->cookie("CGISESSID"),
 275                            $_->{query_desc},
 276                            $_->{query_cgi},
 277                            $_->{type} || 'biblio',
 278                            $_->{total},
 279                            $_->{time},
 280                         ) foreach @recentSearches;
 281
 282                 # clear out the search history from the session now that
 283                 # we've saved it to the database
 284                 C4::Search::History::set_to_session({ cgi => $in->{'query'}, search_history => [] });
 285             }
 286         } elsif ( $in->{type} eq 'intranet' and C4::Context->preference('EnableSearchHistory') ) {
 287             $template->param( EnableSearchHistory => 1 );
 288         }
 289     }
 290     else {    # if this is an anonymous session, setup to display public lists...
 291
 292         $template->param( sessionID        => $sessionID );
 293
 294         my ($total, $pubshelves) = C4::VirtualShelves::GetSomeShelfNames(undef, 'MASTHEAD');
 295         $template->param(
 296             pubshelves     => $total->{pubtotal},
 297             pubshelvesloop => $pubshelves,
 298         );
 299     }
 300      # Anonymous opac search history
 301      # If opac search history is enabled and at least one search has already been performed
 302      if (C4::Context->preference('EnableOpacSearchHistory')) {
 303         my @recentSearches = C4::Search::History::get_from_session({ cgi => $in->{'query'} });
 304         if (@recentSearches) {
 305             $template->param(EnableOpacSearchHistory => 1);
 306         }
 307      }
 308
 309     if(C4::Context->preference('dateformat')){
 310         $template->param(dateformat => C4::Context->preference('dateformat'))
 311     }
 312
 313     # these template parameters are set the same regardless of $in->{'type'}
 314
 315     # Set the using_https variable for templates
 316     # FIXME Under Plack the CGI->https method always returns 'OFF'
 317     my $https = $in->{query}->https();
 318     my $using_https = (defined $https and $https ne 'OFF') ? 1 : 0;
 319
 320     $template->param(
 321             "BiblioDefaultView".C4::Context->preference("BiblioDefaultView")         => 1,
 322             EnhancedMessagingPreferences => C4::Context->preference('EnhancedMessagingPreferences'),
 323             GoogleJackets                => C4::Context->preference("GoogleJackets"),
 324             OpenLibraryCovers            => C4::Context->preference("OpenLibraryCovers"),
 325             KohaAdminEmailAddress        => "" . C4::Context->preference("KohaAdminEmailAddress"),
 326             LoginBranchcode              => (C4::Context->userenv?C4::Context->userenv->{"branch"}:undef),
 327             LoginFirstname               => (C4::Context->userenv?C4::Context->userenv->{"firstname"}:"Bel"),
 328             LoginSurname                 => C4::Context->userenv?C4::Context->userenv->{"surname"}:"Inconnu",
 329             emailaddress                 => C4::Context->userenv?C4::Context->userenv->{"emailaddress"}:undef,
 330             loggedinpersona              => C4::Context->userenv?C4::Context->userenv->{"persona"}:undef,
 331             TagsEnabled                  => C4::Context->preference("TagsEnabled"),
 332             hide_marc                    => C4::Context->preference("hide_marc"),
 333             item_level_itypes            => C4::Context->preference('item-level_itypes'),
 334             patronimages                 => C4::Context->preference("patronimages"),
 335             singleBranchMode             => C4::Context->preference("singleBranchMode"),
 336             XSLTDetailsDisplay           => C4::Context->preference("XSLTDetailsDisplay"),
 337             XSLTResultsDisplay           => C4::Context->preference("XSLTResultsDisplay"),
 338             using_https                  => $using_https,
 339             noItemTypeImages             => C4::Context->preference("noItemTypeImages"),
 340             marcflavour                  => C4::Context->preference("marcflavour"),
 341             persona                      => C4::Context->preference("persona"),
 342     );
 343     if ( $in->{'type'} eq "intranet" ) {
 344         $template->param(
 345             AmazonCoverImages           => C4::Context->preference("AmazonCoverImages"),
 346             AutoLocation                => C4::Context->preference("AutoLocation"),
 347             "BiblioDefaultView".C4::Context->preference("IntranetBiblioDefaultView") => 1,
 348             CalendarFirstDayOfWeek      => (C4::Context->preference("CalendarFirstDayOfWeek") eq "Sunday")?0:1,
 349             CircAutocompl               => C4::Context->preference("CircAutocompl"),
 350             FRBRizeEditions             => C4::Context->preference("FRBRizeEditions"),
 351             IndependentBranches         => C4::Context->preference("IndependentBranches"),
 352             IntranetNav                 => C4::Context->preference("IntranetNav"),
 353             IntranetmainUserblock       => C4::Context->preference("IntranetmainUserblock"),
 354             LibraryName                 => C4::Context->preference("LibraryName"),
 355             LoginBranchname             => (C4::Context->userenv?C4::Context->userenv->{"branchname"}:undef),
 356             advancedMARCEditor          => C4::Context->preference("advancedMARCEditor"),
 357             canreservefromotherbranches => C4::Context->preference('canreservefromotherbranches'),
 358             intranetcolorstylesheet     => C4::Context->preference("intranetcolorstylesheet"),
 359             IntranetFavicon             => C4::Context->preference("IntranetFavicon"),
 360             intranetreadinghistory      => C4::Context->preference("intranetreadinghistory"),
 361             intranetstylesheet          => C4::Context->preference("intranetstylesheet"),
 362             IntranetUserCSS             => C4::Context->preference("IntranetUserCSS"),
 363             intranetuserjs              => C4::Context->preference("intranetuserjs"),
 364             intranetbookbag             => C4::Context->preference("intranetbookbag"),
 365             suggestion                  => C4::Context->preference("suggestion"),
 366             virtualshelves              => C4::Context->preference("virtualshelves"),
 367             StaffSerialIssueDisplayCount => C4::Context->preference("StaffSerialIssueDisplayCount"),
 368             EasyAnalyticalRecords       => C4::Context->preference('EasyAnalyticalRecords'),
 369             LocalCoverImages            => C4::Context->preference('LocalCoverImages'),
 370             OPACLocalCoverImages        => C4::Context->preference('OPACLocalCoverImages'),
 371             AllowMultipleCovers         => C4::Context->preference('AllowMultipleCovers'),
 372             EnableBorrowerFiles         => C4::Context->preference('EnableBorrowerFiles'),
 373             UseKohaPlugins              => C4::Context->preference('UseKohaPlugins'),
 374             UseCourseReserves            => C4::Context->preference("UseCourseReserves"),
 375         );
 376     }
 377     else {
 378         warn "template type should be OPAC, here it is=[" . $in->{'type'} . "]" unless ( $in->{'type'} eq 'opac' );
 379         #TODO : replace LibraryName syspref with 'system name', and remove this html processing
 380         my $LibraryNameTitle = C4::Context->preference("LibraryName");
 381         $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
 382         $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
 383         # clean up the busc param in the session if the page is not opac-detail and not the "add to list" page
 384         if (   C4::Context->preference("OpacBrowseResults")
 385             && $in->{'template_name'} =~ /opac-(.+)\.(?:tt|tmpl)$/ ) {
 386             my $pagename = $1;
 387             unless (   $pagename =~ /^(?:MARC|ISBD)?detail$/
 388                     or $pagename =~ /^addbybiblionumber$/ ) {
 389                 my $sessionSearch = get_session($sessionID || $in->{'query'}->cookie("CGISESSID"));
 390                 $sessionSearch->clear(["busc"]) if ($sessionSearch->param("busc"));
 391             }
 392         }
 393         # variables passed from CGI: opac_css_override and opac_search_limits.
 394         my $opac_search_limit = $ENV{'OPAC_SEARCH_LIMIT'};
 395         my $opac_limit_override = $ENV{'OPAC_LIMIT_OVERRIDE'};
 396         my $opac_name = '';
 397         if (
 398             ($opac_limit_override && $opac_search_limit && $opac_search_limit =~ /branch:(\w+)/) ||
 399             ($in->{'query'}->param('limit') && $in->{'query'}->param('limit') =~ /branch:(\w+)/) ||
 400             ($in->{'query'}->param('multibranchlimit') && $in->{'query'}->param('multibranchlimit') =~ /multibranchlimit-(\w+)/)
 401         ) {
 402             $opac_name = $1;   # opac_search_limit is a branch, so we use it.
 403         } elsif ( $in->{'query'}->param('multibranchlimit') ) {
 404             $opac_name = $in->{'query'}->param('multibranchlimit');
 405         } elsif (C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv && C4::Context->userenv->{'branch'}) {
 406             $opac_name = C4::Context->userenv->{'branch'};
 407         }
 408         # FIXME Under Plack the CGI->https method always returns 'OFF' ($using_https will be set to 0 in this case)
 409         my $opac_base_url = C4::Context->preference("OPACBaseURL"); #FIXME uses $using_https below as well
 410         if (!$opac_base_url){
 411             $opac_base_url = $ENV{'SERVER_NAME'} . ($ENV{'SERVER_PORT'} eq ($using_https ? "443" : "80") ? '' : ":$ENV{'SERVER_PORT'}");
 412         }
 413         $template->param(
 414             opaccolorstylesheet       => C4::Context->preference("opaccolorstylesheet"),
 415             AnonSuggestions           => "" . C4::Context->preference("AnonSuggestions"),
 416             AuthorisedValueImages     => C4::Context->preference("AuthorisedValueImages"),
 417             BranchesLoop              => GetBranchesLoop($opac_name),
 418             BranchCategoriesLoop      => GetBranchCategories( 'searchdomain', 1, $opac_name ),
 419             CalendarFirstDayOfWeek    => (C4::Context->preference("CalendarFirstDayOfWeek") eq "Sunday")?0:1,
 420             LibraryName               => "" . C4::Context->preference("LibraryName"),
 421             LibraryNameTitle          => "" . $LibraryNameTitle,
 422             LoginBranchname           => C4::Context->userenv?C4::Context->userenv->{"branchname"}:"",
 423             OPACAmazonCoverImages     => C4::Context->preference("OPACAmazonCoverImages"),
 424             OPACFRBRizeEditions       => C4::Context->preference("OPACFRBRizeEditions"),
 425             OpacHighlightedWords      => C4::Context->preference("OpacHighlightedWords"),
 426             OPACItemHolds             => C4::Context->preference("OPACItemHolds"),
 427             OPACShelfBrowser          => "". C4::Context->preference("OPACShelfBrowser"),
 428             OPACURLOpenInNewWindow    => "" . C4::Context->preference("OPACURLOpenInNewWindow"),
 429             OPACUserCSS               => "". C4::Context->preference("OPACUserCSS"),
 430             OPACMobileUserCSS         => "". C4::Context->preference("OPACMobileUserCSS"),
 431             OPACViewOthersSuggestions => "" . C4::Context->preference("OPACViewOthersSuggestions"),
 432             OpacAuthorities           => C4::Context->preference("OpacAuthorities"),
 433             OPACBaseURL               => ($using_https ? "https://" : "http://") . $opac_base_url,
 434             opac_css_override         => $ENV{'OPAC_CSS_OVERRIDE'},
 435             opac_search_limit         => $opac_search_limit,
 436             opac_limit_override       => $opac_limit_override,
 437             OpacBrowser               => C4::Context->preference("OpacBrowser"),
 438             OpacCloud                 => C4::Context->preference("OpacCloud"),
 439             OpacKohaUrl               => C4::Context->preference("OpacKohaUrl"),
 440             OpacMainUserBlock         => "" . C4::Context->preference("OpacMainUserBlock"),
 441             OpacMainUserBlockMobile   => "" . C4::Context->preference("OpacMainUserBlockMobile"),
 442             OpacShowFiltersPulldownMobile => C4::Context->preference("OpacShowFiltersPulldownMobile"),
 443             OpacShowLibrariesPulldownMobile => C4::Context->preference("OpacShowLibrariesPulldownMobile"),
 444             OpacNav                   => "" . C4::Context->preference("OpacNav"),
 445             OpacNavRight              => "" . C4::Context->preference("OpacNavRight"),
 446             OpacNavBottom             => "" . C4::Context->preference("OpacNavBottom"),
 447             OpacPasswordChange        => C4::Context->preference("OpacPasswordChange"),
 448             OPACPatronDetails         => C4::Context->preference("OPACPatronDetails"),
 449             OPACPrivacy               => C4::Context->preference("OPACPrivacy"),
 450             OPACFinesTab              => C4::Context->preference("OPACFinesTab"),
 451             OpacTopissue              => C4::Context->preference("OpacTopissue"),
 452             RequestOnOpac             => C4::Context->preference("RequestOnOpac"),
 453             'Version'                 => C4::Context->preference('Version'),
 454             hidelostitems             => C4::Context->preference("hidelostitems"),
 455             mylibraryfirst            => (C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv) ? C4::Context->userenv->{'branch'} : '',
 456             opaclayoutstylesheet      => "" . C4::Context->preference("opaclayoutstylesheet"),
 457             opacbookbag               => "" . C4::Context->preference("opacbookbag"),
 458             opaccredits               => "" . C4::Context->preference("opaccredits"),
 459             OpacFavicon               => C4::Context->preference("OpacFavicon"),
 460             opacheader                => "" . C4::Context->preference("opacheader"),
 461             opaclanguagesdisplay      => "" . C4::Context->preference("opaclanguagesdisplay"),
 462             opacreadinghistory        => C4::Context->preference("opacreadinghistory"),
 463             opacsmallimage            => "" . C4::Context->preference("opacsmallimage"),
 464             opacuserjs                => C4::Context->preference("opacuserjs"),
 465             opacuserlogin             => "" . C4::Context->preference("opacuserlogin"),
 466             ShowReviewer              => C4::Context->preference("ShowReviewer"),
 467             ShowReviewerPhoto         => C4::Context->preference("ShowReviewerPhoto"),
 468             suggestion                => "" . C4::Context->preference("suggestion"),
 469             virtualshelves            => "" . C4::Context->preference("virtualshelves"),
 470             OPACSerialIssueDisplayCount => C4::Context->preference("OPACSerialIssueDisplayCount"),
 471             OPACXSLTDetailsDisplay           => C4::Context->preference("OPACXSLTDetailsDisplay"),
 472             OPACXSLTResultsDisplay           => C4::Context->preference("OPACXSLTResultsDisplay"),
 473             SyndeticsClientCode          => C4::Context->preference("SyndeticsClientCode"),
 474             SyndeticsEnabled             => C4::Context->preference("SyndeticsEnabled"),
 475             SyndeticsCoverImages         => C4::Context->preference("SyndeticsCoverImages"),
 476             SyndeticsTOC                 => C4::Context->preference("SyndeticsTOC"),
 477             SyndeticsSummary             => C4::Context->preference("SyndeticsSummary"),
 478             SyndeticsEditions            => C4::Context->preference("SyndeticsEditions"),
 479             SyndeticsExcerpt             => C4::Context->preference("SyndeticsExcerpt"),
 480             SyndeticsReviews             => C4::Context->preference("SyndeticsReviews"),
 481             SyndeticsAuthorNotes         => C4::Context->preference("SyndeticsAuthorNotes"),
 482             SyndeticsAwards              => C4::Context->preference("SyndeticsAwards"),
 483             SyndeticsSeries              => C4::Context->preference("SyndeticsSeries"),
 484             SyndeticsCoverImageSize      => C4::Context->preference("SyndeticsCoverImageSize"),
 485             OPACLocalCoverImages         => C4::Context->preference("OPACLocalCoverImages"),
 486             PatronSelfRegistration       => C4::Context->preference("PatronSelfRegistration"),
 487             PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
 488         );
 489
 490         $template->param(OpacPublic => '1') if ($user || C4::Context->preference("OpacPublic"));
 491     }
 492
 493     # Check if we were asked using parameters to force a specific language
 494     if ( defined $in->{'query'}->param('language') ) {
 495         # Extract the language, let C4::Languages::getlanguage choose
 496         # what to do
 497         my $language = C4::Languages::getlanguage($in->{'query'});
 498         my $languagecookie = C4::Templates::getlanguagecookie($in->{'query'},$language);
 499         if ( ref $cookie eq 'ARRAY' ) {
 500             push @{ $cookie }, $languagecookie;
 501         } else {
 502             $cookie = [$cookie, $languagecookie];
 503         }
 504     }
 505
 506     return ( $template, $borrowernumber, $cookie, $flags);
 507 }
 508
 509 =head2 checkauth
 510
 511   ($userid, $cookie, $sessionID) = &checkauth($query, $noauth, $flagsrequired, $type);
 512
 513 Verifies that the user is authorized to run this script.  If
 514 the user is authorized, a (userid, cookie, session-id, flags)
 515 quadruple is returned.  If the user is not authorized but does
 516 not have the required privilege (see $flagsrequired below), it
 517 displays an error page and exits.  Otherwise, it displays the
 518 login page and exits.
 519
 520 Note that C<&checkauth> will return if and only if the user
 521 is authorized, so it should be called early on, before any
 522 unfinished operations (e.g., if you've opened a file, then
 523 C<&checkauth> won't close it for you).
 524
 525 C<$query> is the CGI object for the script calling C<&checkauth>.
 526
 527 The C<$noauth> argument is optional. If it is set, then no
 528 authorization is required for the script.
 529
 530 C<&checkauth> fetches user and session information from C<$query> and
 531 ensures that the user is authorized to run scripts that require
 532 authorization.
 533
 534 The C<$flagsrequired> argument specifies the required privileges
 535 the user must have if the username and password are correct.
 536 It should be specified as a reference-to-hash; keys in the hash
 537 should be the "flags" for the user, as specified in the Members
 538 intranet module. Any key specified must correspond to a "flag"
 539 in the userflags table. E.g., { circulate => 1 } would specify
 540 that the user must have the "circulate" privilege in order to
 541 proceed. To make sure that access control is correct, the
 542 C<$flagsrequired> parameter must be specified correctly.
 543
 544 Koha also has a concept of sub-permissions, also known as
 545 granular permissions.  This makes the value of each key
 546 in the C<flagsrequired> hash take on an additional
 547 meaning, i.e.,
 548
 549  1
 550
 551 The user must have access to all subfunctions of the module
 552 specified by the hash key.
 553
 554  *
 555
 556 The user must have access to at least one subfunction of the module
 557 specified by the hash key.
 558
 559  specific permission, e.g., 'export_catalog'
 560
 561 The user must have access to the specific subfunction list, which
 562 must correspond to a row in the permissions table.
 563
 564 The C<$type> argument specifies whether the template should be
 565 retrieved from the opac or intranet directory tree.  "opac" is
 566 assumed if it is not specified; however, if C<$type> is specified,
 567 "intranet" is assumed if it is not "opac".
 568
 569 If C<$query> does not have a valid session ID associated with it
 570 (i.e., the user has not logged in) or if the session has expired,
 571 C<&checkauth> presents the user with a login page (from the point of
 572 view of the original script, C<&checkauth> does not return). Once the
 573 user has authenticated, C<&checkauth> restarts the original script
 574 (this time, C<&checkauth> returns).
 575
 576 The login page is provided using a HTML::Template, which is set in the
 577 systempreferences table or at the top of this file. The variable C<$type>
 578 selects which template to use, either the opac or the intranet
 579 authentification template.
 580
 581 C<&checkauth> returns a user ID, a cookie, and a session ID. The
 582 cookie should be sent back to the browser; it verifies that the user
 583 has authenticated.
 584
 585 =cut
 586
 587 sub _version_check {
 588     my $type = shift;
 589     my $query = shift;
 590     my $version;
 591     # If Version syspref is unavailable, it means Koha is beeing installed,
 592     # and so we must redirect to OPAC maintenance page or to the WebInstaller
 593     # also, if OpacMaintenance is ON, OPAC should redirect to maintenance
 594     if (C4::Context->preference('OpacMaintenance') && $type eq 'opac') {
 595         warn "OPAC Install required, redirecting to maintenance";
 596         print $query->redirect("/cgi-bin/koha/maintenance.pl");
 597         safe_exit;
 598     }
 599     unless ( $version = C4::Context->preference('Version') ) {    # assignment, not comparison
 600         if ( $type ne 'opac' ) {
 601             warn "Install required, redirecting to Installer";
 602             print $query->redirect("/cgi-bin/koha/installer/install.pl");
 603         } else {
 604             warn "OPAC Install required, redirecting to maintenance";
 605             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 606         }
 607         safe_exit;
 608     }
 609
 610     # check that database and koha version are the same
 611     # there is no DB version, it's a fresh install,
 612     # go to web installer
 613     # there is a DB version, compare it to the code version
 614     my $kohaversion=C4::Context::KOHAVERSION;
 615     # remove the 3 last . to have a Perl number
 616     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
 617     $debug and print STDERR "kohaversion : $kohaversion\n";
 618     if ($version < $kohaversion){
 619         my $warning = "Database update needed, redirecting to %s. Database is $version and Koha is $kohaversion";
 620         if ($type ne 'opac'){
 621             warn sprintf($warning, 'Installer');
 622             print $query->redirect("/cgi-bin/koha/installer/install.pl?step=3");
 623         } else {
 624             warn sprintf("OPAC: " . $warning, 'maintenance');
 625             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 626         }
 627         safe_exit;
 628     }
 629 }
 630
 631 sub _session_log {
 632     (@_) or return 0;
 633     open my $fh, '>>', "/tmp/sessionlog" or warn "ERROR: Cannot append to /tmp/sessionlog";
 634     printf $fh join("\n",@_);
 635     close $fh;
 636 }
 637
 638 sub _timeout_syspref {
 639     my $timeout = C4::Context->preference('timeout') || 600;
 640     # value in days, convert in seconds
 641     if ($timeout =~ /(\d+)[dD]/) {
 642         $timeout = $1 * 86400;
 643     };
 644     return $timeout;
 645 }
 646
 647 sub checkauth {
 648     my $query = shift;
 649     $debug and warn "Checking Auth";
 650     # $authnotrequired will be set for scripts which will run without authentication
 651     my $authnotrequired = shift;
 652     my $flagsrequired   = shift;
 653     my $type            = shift;
 654     my $persona         = shift;
 655     $type = 'opac' unless $type;
 656
 657     my $dbh     = C4::Context->dbh;
 658     my $timeout = _timeout_syspref();
 659
 660     _version_check($type,$query);
 661     # state variables
 662     my $loggedin = 0;
 663     my %info;
 664     my ( $userid, $cookie, $sessionID, $flags, $barshelves, $pubshelves );
 665     my $logout = $query->param('logout.x');
 666
 667     my $anon_search_history;
 668
 669     # This parameter is the name of the CAS server we want to authenticate against,
 670     # when using authentication against multiple CAS servers, as configured in Auth_cas_servers.yaml
 671     my $casparam = $query->param('cas');
 672     my $q_userid = $query->param('userid') // '';
 673
 674     if ( $userid = $ENV{'REMOTE_USER'} ) {
 675             # Using Basic Authentication, no cookies required
 676         $cookie = $query->cookie(
 677             -name     => 'CGISESSID',
 678             -value    => '',
 679             -expires  => '',
 680             -HttpOnly => 1,
 681         );
 682         $loggedin = 1;
 683     }
 684     elsif ( $persona ){
 685       # we dont want to set a session because we are being called by a persona callback
 686     }
 687     elsif ( $sessionID = $query->cookie("CGISESSID") )
 688     {    # assignment, not comparison
 689         my $session = get_session($sessionID);
 690         C4::Context->_new_userenv($sessionID);
 691         my ($ip, $lasttime, $sessiontype);
 692         my $s_userid = '';
 693         if ($session){
 694             $s_userid = $session->param('id') // '';
 695             C4::Context::set_userenv(
 696                 $session->param('number'),       $s_userid,
 697                 $session->param('cardnumber'),   $session->param('firstname'),
 698                 $session->param('surname'),      $session->param('branch'),
 699                 $session->param('branchname'),   $session->param('flags'),
 700                 $session->param('emailaddress'), $session->param('branchprinter'),
 701                 $session->param('persona')
 702             );
 703             C4::Context::set_shelves_userenv('bar',$session->param('barshelves'));
 704             C4::Context::set_shelves_userenv('pub',$session->param('pubshelves'));
 705             C4::Context::set_shelves_userenv('tot',$session->param('totshelves'));
 706             $debug and printf STDERR "AUTH_SESSION: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ;
 707             $ip       = $session->param('ip');
 708             $lasttime = $session->param('lasttime');
 709             $userid   = $s_userid;
 710             $sessiontype = $session->param('sessiontype') || '';
 711         }
 712         if ( ( $query->param('koha_login_context') && ($q_userid ne $s_userid) )
 713           || ( $cas && $query->param('ticket') ) ) {
 714             #if a user enters an id ne to the id in the current session, we need to log them in...
 715             #first we need to clear the anonymous session...
 716             $debug and warn "query id = $q_userid but session id = $s_userid";
 717             $anon_search_history = $session->param('search_history');
 718             $session->delete();
 719             $session->flush;
 720             C4::Context->_unset_userenv($sessionID);
 721             $sessionID = undef;
 722             $userid = undef;
 723         }
 724         elsif ($logout) {
 725             # voluntary logout the user
 726             $session->delete();
 727             $session->flush;
 728             C4::Context->_unset_userenv($sessionID);
 729             #_session_log(sprintf "%20s from %16s logged out at %30s (manually).\n", $userid,$ip,(strftime "%c",localtime));
 730             $sessionID = undef;
 731             $userid    = undef;
 732
 733         if ($cas and $caslogout) {
 734         logout_cas($query);
 735         }
 736         }
 737         elsif ( !$lasttime || ($lasttime < time() - $timeout) ) {
 738             # timed logout
 739             $info{'timed_out'} = 1;
 740             if ($session) {
 741                 $session->delete();
 742                 $session->flush;
 743             }
 744             C4::Context->_unset_userenv($sessionID);
 745             #_session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,(strftime "%c",localtime));
 746             $userid    = undef;
 747             $sessionID = undef;
 748         }
 749         elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
 750             # Different ip than originally logged in from
 751             $info{'oldip'}        = $ip;
 752             $info{'newip'}        = $ENV{'REMOTE_ADDR'};
 753             $info{'different_ip'} = 1;
 754             $session->delete();
 755             $session->flush;
 756             C4::Context->_unset_userenv($sessionID);
 757             #_session_log(sprintf "%20s from %16s logged out at %30s (ip changed to %16s).\n", $userid,$ip,(strftime "%c",localtime), $info{'newip'});
 758             $sessionID = undef;
 759             $userid    = undef;
 760         }
 761         else {
 762             $cookie = $query->cookie(
 763                 -name     => 'CGISESSID',
 764                 -value    => $session->id,
 765                 -HttpOnly => 1
 766             );
 767             $session->param( 'lasttime', time() );
 768             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...
 769                 $flags = haspermission($userid, $flagsrequired);
 770                 if ($flags) {
 771                     $loggedin = 1;
 772                 } else {
 773                     $info{'nopermission'} = 1;
 774                 }
 775             }
 776         }
 777     }
 778     unless ($userid || $sessionID) {
 779
 780         #we initiate a session prior to checking for a username to allow for anonymous sessions...
 781         my $session = get_session("") or die "Auth ERROR: Cannot get_session()";
 782
 783         # Save anonymous search history in new session so it can be retrieved
 784         # by get_template_and_user to store it in user's search history after
 785         # a successful login.
 786         if ($anon_search_history) {
 787             $session->param('search_history', $anon_search_history);
 788         }
 789
 790         my $sessionID = $session->id;
 791         C4::Context->_new_userenv($sessionID);
 792         $cookie = $query->cookie(
 793             -name     => 'CGISESSID',
 794             -value    => $session->id,
 795             -HttpOnly => 1
 796         );
 797         $userid = $q_userid;
 798         my $pki_field = C4::Context->preference('AllowPKIAuth');
 799         if (! defined($pki_field) ) {
 800             print STDERR "ERROR: Missing system preference AllowPKIAuth.\n";
 801             $pki_field = 'None';
 802         }
 803         if (   ( $cas && $query->param('ticket') )
 804             || $userid
 805             || $pki_field ne 'None'
 806             || $persona )
 807         {
 808             my $password = $query->param('password');
 809
 810             my ( $return, $cardnumber );
 811             if ( $cas && $query->param('ticket') ) {
 812                 my $retuserid;
 813                 ( $return, $cardnumber, $retuserid ) =
 814                   checkpw( $dbh, $userid, $password, $query );
 815                 $userid = $retuserid;
 816                 $info{'invalidCasLogin'} = 1 unless ($return);
 817             }
 818
 819     elsif ($persona) {
 820         my $value = $persona;
 821
 822         # If we're looking up the email, there's a chance that the person
 823         # doesn't have a userid. So if there is none, we pass along the
 824         # borrower number, and the bits of code that need to know the user
 825         # ID will have to be smart enough to handle that.
 826         require C4::Members;
 827         my @users_info = C4::Members::GetBorrowersWithEmail($value);
 828         if (@users_info) {
 829
 830             # First the userid, then the borrowernum
 831             $value = $users_info[0][1] || $users_info[0][0];
 832         }
 833         else {
 834             undef $value;
 835         }
 836         $return = $value ? 1 : 0;
 837         $userid = $value;
 838     }
 839
 840     elsif (
 841                 ( $pki_field eq 'Common Name' && $ENV{'SSL_CLIENT_S_DN_CN'} )
 842                 || (   $pki_field eq 'emailAddress'
 843                     && $ENV{'SSL_CLIENT_S_DN_Email'} )
 844               )
 845             {
 846                 my $value;
 847                 if ( $pki_field eq 'Common Name' ) {
 848                     $value = $ENV{'SSL_CLIENT_S_DN_CN'};
 849                 }
 850                 elsif ( $pki_field eq 'emailAddress' ) {
 851                     $value = $ENV{'SSL_CLIENT_S_DN_Email'};
 852
 853               # If we're looking up the email, there's a chance that the person
 854               # doesn't have a userid. So if there is none, we pass along the
 855               # borrower number, and the bits of code that need to know the user
 856               # ID will have to be smart enough to handle that.
 857                     require C4::Members;
 858                     my @users_info = C4::Members::GetBorrowersWithEmail($value);
 859                     if (@users_info) {
 860
 861                         # First the userid, then the borrowernum
 862                         $value = $users_info[0][1] || $users_info[0][0];
 863                     } else {
 864                         undef $value;
 865                     }
 866                 }
 867
 868
 869                 $return = $value ? 1 : 0;
 870                 $userid = $value;
 871
 872     }
 873             else {
 874                 my $retuserid;
 875                 ( $return, $cardnumber, $retuserid ) =
 876                   checkpw( $dbh, $userid, $password, $query );
 877                 $userid = $retuserid if ( $retuserid );
 878         }
 879         if ($return) {
 880                #_session_log(sprintf "%20s from %16s logged in  at %30s.\n", $userid,$ENV{'REMOTE_ADDR'},(strftime '%c', localtime));
 881                 if ( $flags = haspermission(  $userid, $flagsrequired ) ) {
 882                     $loggedin = 1;
 883                 }
 884                    else {
 885                     $info{'nopermission'} = 1;
 886                     C4::Context->_unset_userenv($sessionID);
 887                 }
 888                 my ($borrowernumber, $firstname, $surname, $userflags,
 889                     $branchcode, $branchname, $branchprinter, $emailaddress);
 890
 891                 if ( $return == 1 ) {
 892                     my $select = "
 893                     SELECT borrowernumber, firstname, surname, flags, borrowers.branchcode,
 894                     branches.branchname    as branchname,
 895                     branches.branchprinter as branchprinter,
 896                     email
 897                     FROM borrowers
 898                     LEFT JOIN branches on borrowers.branchcode=branches.branchcode
 899                     ";
 900                     my $sth = $dbh->prepare("$select where userid=?");
 901                     $sth->execute($userid);
 902                     unless ($sth->rows) {
 903                         $debug and print STDERR "AUTH_1: no rows for userid='$userid'\n";
 904                         $sth = $dbh->prepare("$select where cardnumber=?");
 905                         $sth->execute($cardnumber);
 906
 907                         unless ($sth->rows) {
 908                             $debug and print STDERR "AUTH_2a: no rows for cardnumber='$cardnumber'\n";
 909                             $sth->execute($userid);
 910                             unless ($sth->rows) {
 911                                 $debug and print STDERR "AUTH_2b: no rows for userid='$userid' AS cardnumber\n";
 912                             }
 913                         }
 914                     }
 915                     if ($sth->rows) {
 916                         ($borrowernumber, $firstname, $surname, $userflags,
 917                             $branchcode, $branchname, $branchprinter, $emailaddress) = $sth->fetchrow;
 918                         $debug and print STDERR "AUTH_3 results: " .
 919                         "$cardnumber,$borrowernumber,$userid,$firstname,$surname,$userflags,$branchcode,$emailaddress\n";
 920                     } else {
 921                         print STDERR "AUTH_3: no results for userid='$userid', cardnumber='$cardnumber'.\n";
 922                     }
 923
 924 # launch a sequence to check if we have a ip for the branch, i
 925 # if we have one we replace the branchcode of the userenv by the branch bound in the ip.
 926
 927                     my $ip       = $ENV{'REMOTE_ADDR'};
 928                     # if they specify at login, use that
 929                     if ($query->param('branch')) {
 930                         $branchcode  = $query->param('branch');
 931                         $branchname = GetBranchName($branchcode);
 932                     }
 933                     my $branches = GetBranches();
 934                     if (C4::Context->boolean_preference('IndependentBranches') && C4::Context->boolean_preference('Autolocation')){
 935                         # we have to check they are coming from the right ip range
 936                         my $domain = $branches->{$branchcode}->{'branchip'};
 937                         if ($ip !~ /^$domain/){
 938                             $loggedin=0;
 939                             $info{'wrongip'} = 1;
 940                         }
 941                     }
 942
 943                     my @branchesloop;
 944                     foreach my $br ( keys %$branches ) {
 945                         #     now we work with the treatment of ip
 946                         my $domain = $branches->{$br}->{'branchip'};
 947                         if ( $domain && $ip =~ /^$domain/ ) {
 948                             $branchcode = $branches->{$br}->{'branchcode'};
 949
 950                             # new op dev : add the branchprinter and branchname in the cookie
 951                             $branchprinter = $branches->{$br}->{'branchprinter'};
 952                             $branchname    = $branches->{$br}->{'branchname'};
 953                         }
 954                     }
 955                     $session->param('number',$borrowernumber);
 956                     $session->param('id',$userid);
 957                     $session->param('cardnumber',$cardnumber);
 958                     $session->param('firstname',$firstname);
 959                     $session->param('surname',$surname);
 960                     $session->param('branch',$branchcode);
 961                     $session->param('branchname',$branchname);
 962                     $session->param('flags',$userflags);
 963                     $session->param('emailaddress',$emailaddress);
 964                     $session->param('ip',$session->remote_addr());
 965                     $session->param('lasttime',time());
 966                     $debug and printf STDERR "AUTH_4: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ;
 967                 }
 968                 elsif ( $return == 2 ) {
 969                     #We suppose the user is the superlibrarian
 970                     $borrowernumber = 0;
 971                     $session->param('number',0);
 972                     $session->param('id',C4::Context->config('user'));
 973                     $session->param('cardnumber',C4::Context->config('user'));
 974                     $session->param('firstname',C4::Context->config('user'));
 975                     $session->param('surname',C4::Context->config('user'));
 976                     $session->param('branch','NO_LIBRARY_SET');
 977                     $session->param('branchname','NO_LIBRARY_SET');
 978                     $session->param('flags',1);
 979                     $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress'));
 980                     $session->param('ip',$session->remote_addr());
 981                     $session->param('lasttime',time());
 982                 }
 983                 if ($persona){
 984                     $session->param('persona',1);
 985                 }
 986                 C4::Context::set_userenv(
 987                     $session->param('number'),       $session->param('id'),
 988                     $session->param('cardnumber'),   $session->param('firstname'),
 989                     $session->param('surname'),      $session->param('branch'),
 990                     $session->param('branchname'),   $session->param('flags'),
 991                     $session->param('emailaddress'), $session->param('branchprinter'),
 992                     $session->param('persona')
 993                 );
 994
 995             }
 996             else {
 997                 if ($userid) {
 998                     $info{'invalid_username_or_password'} = 1;
 999                     C4::Context->_unset_userenv($sessionID);
1000                 }
1001                 $session->param('lasttime',time());
1002                 $session->param('ip',$session->remote_addr());
1003             }
1004         }    # END if ( $userid    = $query->param('userid') )
1005         elsif ($type eq "opac") {
1006             # if we are here this is an anonymous session; add public lists to it and a few other items...
1007             # anonymous sessions are created only for the OPAC
1008             $debug and warn "Initiating an anonymous session...";
1009
1010             # setting a couple of other session vars...
1011             $session->param('ip',$session->remote_addr());
1012             $session->param('lasttime',time());
1013             $session->param('sessiontype','anon');
1014         }
1015     }    # END unless ($userid)
1016
1017     # finished authentification, now respond
1018     if ( $loggedin || $authnotrequired )
1019     {
1020         # successful login
1021         unless ($cookie) {
1022             $cookie = $query->cookie(
1023                 -name     => 'CGISESSID',
1024                 -value    => '',
1025                 -HttpOnly => 1
1026             );
1027         }
1028         return ( $userid, $cookie, $sessionID, $flags );
1029     }
1030
1031 #
1032 #
1033 # AUTH rejected, show the login/password template, after checking the DB.
1034 #
1035 #
1036
1037     # get the inputs from the incoming query
1038     my @inputs = ();
1039     foreach my $name ( param $query) {
1040         (next) if ( $name eq 'userid' || $name eq 'password' || $name eq 'ticket' );
1041         my $value = $query->param($name);
1042         push @inputs, { name => $name, value => $value };
1043     }
1044
1045     my $LibraryNameTitle = C4::Context->preference("LibraryName");
1046     $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
1047     $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
1048
1049     my $template_name = ( $type eq 'opac' ) ? 'opac-auth.tmpl' : 'auth.tmpl';
1050     my $template = C4::Templates::gettemplate($template_name, $type, $query );
1051     $template->param(
1052         branchloop           => GetBranchesLoop(),
1053         opaccolorstylesheet  => C4::Context->preference("opaccolorstylesheet"),
1054         opaclayoutstylesheet => C4::Context->preference("opaclayoutstylesheet"),
1055         login                => 1,
1056         INPUTS               => \@inputs,
1057         casAuthentication    => C4::Context->preference("casAuthentication"),
1058         suggestion           => C4::Context->preference("suggestion"),
1059         virtualshelves       => C4::Context->preference("virtualshelves"),
1060         LibraryName          => "" . C4::Context->preference("LibraryName"),
1061         LibraryNameTitle     => "" . $LibraryNameTitle,
1062         opacuserlogin        => C4::Context->preference("opacuserlogin"),
1063         OpacNav              => C4::Context->preference("OpacNav"),
1064         OpacNavRight         => C4::Context->preference("OpacNavRight"),
1065         OpacNavBottom        => C4::Context->preference("OpacNavBottom"),
1066         opaccredits          => C4::Context->preference("opaccredits"),
1067         OpacFavicon          => C4::Context->preference("OpacFavicon"),
1068         opacreadinghistory   => C4::Context->preference("opacreadinghistory"),
1069         opacsmallimage       => C4::Context->preference("opacsmallimage"),
1070         opaclanguagesdisplay => C4::Context->preference("opaclanguagesdisplay"),
1071         opacuserjs           => C4::Context->preference("opacuserjs"),
1072         opacbookbag          => "" . C4::Context->preference("opacbookbag"),
1073         OpacCloud            => C4::Context->preference("OpacCloud"),
1074         OpacTopissue         => C4::Context->preference("OpacTopissue"),
1075         OpacAuthorities      => C4::Context->preference("OpacAuthorities"),
1076         OpacBrowser          => C4::Context->preference("OpacBrowser"),
1077         opacheader           => C4::Context->preference("opacheader"),
1078         TagsEnabled          => C4::Context->preference("TagsEnabled"),
1079         OPACUserCSS           => C4::Context->preference("OPACUserCSS"),
1080         intranetcolorstylesheet => C4::Context->preference("intranetcolorstylesheet"),
1081         intranetstylesheet => C4::Context->preference("intranetstylesheet"),
1082         intranetbookbag    => C4::Context->preference("intranetbookbag"),
1083         IntranetNav        => C4::Context->preference("IntranetNav"),
1084         IntranetFavicon    => C4::Context->preference("IntranetFavicon"),
1085         intranetuserjs     => C4::Context->preference("intranetuserjs"),
1086         IndependentBranches=> C4::Context->preference("IndependentBranches"),
1087         AutoLocation       => C4::Context->preference("AutoLocation"),
1088         wrongip            => $info{'wrongip'},
1089         PatronSelfRegistration => C4::Context->preference("PatronSelfRegistration"),
1090         PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
1091         persona            => C4::Context->preference("Persona"),
1092         opac_css_override => $ENV{'OPAC_CSS_OVERRIDE'},
1093     );
1094
1095     $template->param( OpacPublic => C4::Context->preference("OpacPublic"));
1096     $template->param( loginprompt => 1 ) unless $info{'nopermission'};
1097
1098     if($type eq 'opac'){
1099         my ($total, $pubshelves) = C4::VirtualShelves::GetSomeShelfNames(undef, 'MASTHEAD');
1100         $template->param(
1101             pubshelves     => $total->{pubtotal},
1102             pubshelvesloop => $pubshelves,
1103         );
1104     }
1105
1106     if ($cas) {
1107
1108     # Is authentication against multiple CAS servers enabled?
1109         if (C4::Auth_with_cas::multipleAuth && !$casparam) {
1110         my $casservers = C4::Auth_with_cas::getMultipleAuth();
1111         my @tmplservers;
1112         foreach my $key (keys %$casservers) {
1113         push @tmplservers, {name => $key, value => login_cas_url($query, $key) . "?cas=$key" };
1114         }
1115         $template->param(
1116         casServersLoop => \@tmplservers
1117         );
1118     } else {
1119         $template->param(
1120             casServerUrl    => login_cas_url($query),
1121         );
1122     }
1123
1124     $template->param(
1125             invalidCasLogin => $info{'invalidCasLogin'}
1126         );
1127     }
1128
1129     my $self_url = $query->url( -absolute => 1 );
1130     $template->param(
1131         url         => $self_url,
1132         LibraryName => C4::Context->preference("LibraryName"),
1133     );
1134     $template->param( %info );
1135 #    $cookie = $query->cookie(CGISESSID => $session->id
1136 #   );
1137     print $query->header(
1138         -type   => 'text/html',
1139         -charset => 'utf-8',
1140         -cookie => $cookie
1141       ),
1142       $template->output;
1143     safe_exit;
1144 }
1145
1146 =head2 check_api_auth
1147
1148   ($status, $cookie, $sessionId) = check_api_auth($query, $userflags);
1149
1150 Given a CGI query containing the parameters 'userid' and 'password' and/or a session
1151 cookie, determine if the user has the privileges specified by C<$userflags>.
1152
1153 C<check_api_auth> is is meant for authenticating users of web services, and
1154 consequently will always return and will not attempt to redirect the user
1155 agent.
1156
1157 If a valid session cookie is already present, check_api_auth will return a status
1158 of "ok", the cookie, and the Koha session ID.
1159
1160 If no session cookie is present, check_api_auth will check the 'userid' and 'password
1161 parameters and create a session cookie and Koha session if the supplied credentials
1162 are OK.
1163
1164 Possible return values in C<$status> are:
1165
1166 =over
1167
1168 =item "ok" -- user authenticated; C<$cookie> and C<$sessionid> have valid values.
1169
1170 =item "failed" -- credentials are not correct; C<$cookie> and C<$sessionid> are undef
1171
1172 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1173
1174 =item "expired -- session cookie has expired; API user should resubmit userid and password
1175
1176 =back
1177
1178 =cut
1179
1180 sub check_api_auth {
1181     my $query = shift;
1182     my $flagsrequired = shift;
1183
1184     my $dbh     = C4::Context->dbh;
1185     my $timeout = _timeout_syspref();
1186
1187     unless (C4::Context->preference('Version')) {
1188         # database has not been installed yet
1189         return ("maintenance", undef, undef);
1190     }
1191     my $kohaversion=C4::Context::KOHAVERSION;
1192     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1193     if (C4::Context->preference('Version') < $kohaversion) {
1194         # database in need of version update; assume that
1195         # no API should be called while databsae is in
1196         # this condition.
1197         return ("maintenance", undef, undef);
1198     }
1199
1200     # FIXME -- most of what follows is a copy-and-paste
1201     # of code from checkauth.  There is an obvious need
1202     # for refactoring to separate the various parts of
1203     # the authentication code, but as of 2007-11-19 this
1204     # is deferred so as to not introduce bugs into the
1205     # regular authentication code for Koha 3.0.
1206
1207     # see if we have a valid session cookie already
1208     # however, if a userid parameter is present (i.e., from
1209     # a form submission, assume that any current cookie
1210     # is to be ignored
1211     my $sessionID = undef;
1212     unless ($query->param('userid')) {
1213         $sessionID = $query->cookie("CGISESSID");
1214     }
1215     if ($sessionID && not ($cas && $query->param('PT')) ) {
1216         my $session = get_session($sessionID);
1217         C4::Context->_new_userenv($sessionID);
1218         if ($session) {
1219             C4::Context::set_userenv(
1220                 $session->param('number'),       $session->param('id'),
1221                 $session->param('cardnumber'),   $session->param('firstname'),
1222                 $session->param('surname'),      $session->param('branch'),
1223                 $session->param('branchname'),   $session->param('flags'),
1224                 $session->param('emailaddress'), $session->param('branchprinter')
1225             );
1226
1227             my $ip = $session->param('ip');
1228             my $lasttime = $session->param('lasttime');
1229             my $userid = $session->param('id');
1230             if ( $lasttime < time() - $timeout ) {
1231                 # time out
1232                 $session->delete();
1233                 $session->flush;
1234                 C4::Context->_unset_userenv($sessionID);
1235                 $userid    = undef;
1236                 $sessionID = undef;
1237                 return ("expired", undef, undef);
1238             } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
1239                 # IP address changed
1240                 $session->delete();
1241                 $session->flush;
1242                 C4::Context->_unset_userenv($sessionID);
1243                 $userid    = undef;
1244                 $sessionID = undef;
1245                 return ("expired", undef, undef);
1246             } else {
1247                 my $cookie = $query->cookie(
1248                     -name  => 'CGISESSID',
1249                     -value => $session->id,
1250                     -HttpOnly => 1,
1251                 );
1252                 $session->param('lasttime',time());
1253                 my $flags = haspermission($userid, $flagsrequired);
1254                 if ($flags) {
1255                     return ("ok", $cookie, $sessionID);
1256                 } else {
1257                     $session->delete();
1258                     $session->flush;
1259                     C4::Context->_unset_userenv($sessionID);
1260                     $userid    = undef;
1261                     $sessionID = undef;
1262                     return ("failed", undef, undef);
1263                 }
1264             }
1265         } else {
1266             return ("expired", undef, undef);
1267         }
1268     } else {
1269         # new login
1270         my $userid = $query->param('userid');
1271         my $password = $query->param('password');
1272            my ($return, $cardnumber);
1273
1274     # Proxy CAS auth
1275     if ($cas && $query->param('PT')) {
1276         my $retuserid;
1277         $debug and print STDERR "## check_api_auth - checking CAS\n";
1278         # In case of a CAS authentication, we use the ticket instead of the password
1279         my $PT = $query->param('PT');
1280         ($return,$cardnumber,$userid) = check_api_auth_cas($dbh, $PT, $query);    # EXTERNAL AUTH
1281     } else {
1282         # User / password auth
1283         unless ($userid and $password) {
1284         # caller did something wrong, fail the authenticateion
1285         return ("failed", undef, undef);
1286         }
1287         ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password, $query );
1288     }
1289
1290         if ($return and haspermission(  $userid, $flagsrequired)) {
1291             my $session = get_session("");
1292             return ("failed", undef, undef) unless $session;
1293
1294             my $sessionID = $session->id;
1295             C4::Context->_new_userenv($sessionID);
1296             my $cookie = $query->cookie(
1297                 -name  => 'CGISESSID',
1298                 -value => $sessionID,
1299                 -HttpOnly => 1,
1300             );
1301             if ( $return == 1 ) {
1302                 my (
1303                     $borrowernumber, $firstname,  $surname,
1304                     $userflags,      $branchcode, $branchname,
1305                     $branchprinter,  $emailaddress
1306                 );
1307                 my $sth =
1308                   $dbh->prepare(
1309 "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=?"
1310                   );
1311                 $sth->execute($userid);
1312                 (
1313                     $borrowernumber, $firstname,  $surname,
1314                     $userflags,      $branchcode, $branchname,
1315                     $branchprinter,  $emailaddress
1316                 ) = $sth->fetchrow if ( $sth->rows );
1317
1318                 unless ($sth->rows ) {
1319                     my $sth = $dbh->prepare(
1320 "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=?"
1321                       );
1322                     $sth->execute($cardnumber);
1323                     (
1324                         $borrowernumber, $firstname,  $surname,
1325                         $userflags,      $branchcode, $branchname,
1326                         $branchprinter,  $emailaddress
1327                     ) = $sth->fetchrow if ( $sth->rows );
1328
1329                     unless ( $sth->rows ) {
1330                         $sth->execute($userid);
1331                         (
1332                             $borrowernumber, $firstname, $surname, $userflags,
1333                             $branchcode, $branchname, $branchprinter, $emailaddress
1334                         ) = $sth->fetchrow if ( $sth->rows );
1335                     }
1336                 }
1337
1338                 my $ip       = $ENV{'REMOTE_ADDR'};
1339                 # if they specify at login, use that
1340                 if ($query->param('branch')) {
1341                     $branchcode  = $query->param('branch');
1342                     $branchname = GetBranchName($branchcode);
1343                 }
1344                 my $branches = GetBranches();
1345                 my @branchesloop;
1346                 foreach my $br ( keys %$branches ) {
1347                     #     now we work with the treatment of ip
1348                     my $domain = $branches->{$br}->{'branchip'};
1349                     if ( $domain && $ip =~ /^$domain/ ) {
1350                         $branchcode = $branches->{$br}->{'branchcode'};
1351
1352                         # new op dev : add the branchprinter and branchname in the cookie
1353                         $branchprinter = $branches->{$br}->{'branchprinter'};
1354                         $branchname    = $branches->{$br}->{'branchname'};
1355                     }
1356                 }
1357                 $session->param('number',$borrowernumber);
1358                 $session->param('id',$userid);
1359                 $session->param('cardnumber',$cardnumber);
1360                 $session->param('firstname',$firstname);
1361                 $session->param('surname',$surname);
1362                 $session->param('branch',$branchcode);
1363                 $session->param('branchname',$branchname);
1364                 $session->param('flags',$userflags);
1365                 $session->param('emailaddress',$emailaddress);
1366                 $session->param('ip',$session->remote_addr());
1367                 $session->param('lasttime',time());
1368             } elsif ( $return == 2 ) {
1369                 #We suppose the user is the superlibrarian
1370                 $session->param('number',0);
1371                 $session->param('id',C4::Context->config('user'));
1372                 $session->param('cardnumber',C4::Context->config('user'));
1373                 $session->param('firstname',C4::Context->config('user'));
1374                 $session->param('surname',C4::Context->config('user'));
1375                 $session->param('branch','NO_LIBRARY_SET');
1376                 $session->param('branchname','NO_LIBRARY_SET');
1377                 $session->param('flags',1);
1378                 $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress'));
1379                 $session->param('ip',$session->remote_addr());
1380                 $session->param('lasttime',time());
1381             }
1382             C4::Context::set_userenv(
1383                 $session->param('number'),       $session->param('id'),
1384                 $session->param('cardnumber'),   $session->param('firstname'),
1385                 $session->param('surname'),      $session->param('branch'),
1386                 $session->param('branchname'),   $session->param('flags'),
1387                 $session->param('emailaddress'), $session->param('branchprinter')
1388             );
1389             return ("ok", $cookie, $sessionID);
1390         } else {
1391             return ("failed", undef, undef);
1392         }
1393     }
1394 }
1395
1396 =head2 check_cookie_auth
1397
1398   ($status, $sessionId) = check_api_auth($cookie, $userflags);
1399
1400 Given a CGISESSID cookie set during a previous login to Koha, determine
1401 if the user has the privileges specified by C<$userflags>.
1402
1403 C<check_cookie_auth> is meant for authenticating special services
1404 such as tools/upload-file.pl that are invoked by other pages that
1405 have been authenticated in the usual way.
1406
1407 Possible return values in C<$status> are:
1408
1409 =over
1410
1411 =item "ok" -- user authenticated; C<$sessionID> have valid values.
1412
1413 =item "failed" -- credentials are not correct; C<$sessionid> are undef
1414
1415 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1416
1417 =item "expired -- session cookie has expired; API user should resubmit userid and password
1418
1419 =back
1420
1421 =cut
1422
1423 sub check_cookie_auth {
1424     my $cookie = shift;
1425     my $flagsrequired = shift;
1426
1427     my $dbh     = C4::Context->dbh;
1428     my $timeout = _timeout_syspref();
1429
1430     unless (C4::Context->preference('Version')) {
1431         # database has not been installed yet
1432         return ("maintenance", undef);
1433     }
1434     my $kohaversion=C4::Context::KOHAVERSION;
1435     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1436     if (C4::Context->preference('Version') < $kohaversion) {
1437         # database in need of version update; assume that
1438         # no API should be called while databsae is in
1439         # this condition.
1440         return ("maintenance", undef);
1441     }
1442
1443     # FIXME -- most of what follows is a copy-and-paste
1444     # of code from checkauth.  There is an obvious need
1445     # for refactoring to separate the various parts of
1446     # the authentication code, but as of 2007-11-23 this
1447     # is deferred so as to not introduce bugs into the
1448     # regular authentication code for Koha 3.0.
1449
1450     # see if we have a valid session cookie already
1451     # however, if a userid parameter is present (i.e., from
1452     # a form submission, assume that any current cookie
1453     # is to be ignored
1454     unless (defined $cookie and $cookie) {
1455         return ("failed", undef);
1456     }
1457     my $sessionID = $cookie;
1458     my $session = get_session($sessionID);
1459     C4::Context->_new_userenv($sessionID);
1460     if ($session) {
1461         C4::Context::set_userenv(
1462             $session->param('number'),       $session->param('id'),
1463             $session->param('cardnumber'),   $session->param('firstname'),
1464             $session->param('surname'),      $session->param('branch'),
1465             $session->param('branchname'),   $session->param('flags'),
1466             $session->param('emailaddress'), $session->param('branchprinter')
1467         );
1468
1469         my $ip = $session->param('ip');
1470         my $lasttime = $session->param('lasttime');
1471         my $userid = $session->param('id');
1472         if ( $lasttime < time() - $timeout ) {
1473             # time out
1474             $session->delete();
1475             $session->flush;
1476             C4::Context->_unset_userenv($sessionID);
1477             $userid    = undef;
1478             $sessionID = undef;
1479             return ("expired", undef);
1480         } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
1481             # IP address changed
1482             $session->delete();
1483             $session->flush;
1484             C4::Context->_unset_userenv($sessionID);
1485             $userid    = undef;
1486             $sessionID = undef;
1487             return ("expired", undef);
1488         } else {
1489             $session->param('lasttime',time());
1490             my $flags = haspermission($userid, $flagsrequired);
1491             if ($flags) {
1492                 return ("ok", $sessionID);
1493             } else {
1494                 $session->delete();
1495                 $session->flush;
1496                 C4::Context->_unset_userenv($sessionID);
1497                 $userid    = undef;
1498                 $sessionID = undef;
1499                 return ("failed", undef);
1500             }
1501         }
1502     } else {
1503         return ("expired", undef);
1504     }
1505 }
1506
1507 =head2 get_session
1508
1509   use CGI::Session;
1510   my $session = get_session($sessionID);
1511
1512 Given a session ID, retrieve the CGI::Session object used to store
1513 the session's state.  The session object can be used to store
1514 data that needs to be accessed by different scripts during a
1515 user's session.
1516
1517 If the C<$sessionID> parameter is an empty string, a new session
1518 will be created.
1519
1520 =cut
1521
1522 sub get_session {
1523     my $sessionID = shift;
1524     my $storage_method = C4::Context->preference('SessionStorage');
1525     my $dbh = C4::Context->dbh;
1526     my $session;
1527     if ($storage_method eq 'mysql'){
1528         $session = new CGI::Session("driver:MySQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh});
1529     }
1530     elsif ($storage_method eq 'Pg') {
1531         $session = new CGI::Session("driver:PostgreSQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh});
1532     }
1533     elsif ($storage_method eq 'memcached' && C4::Context->ismemcached){
1534     $session = new CGI::Session("driver:memcached;serializer:yaml;id:md5", $sessionID, { Memcached => C4::Context->memcached } );
1535     }
1536     else {
1537         # catch all defaults to tmp should work on all systems
1538         $session = new CGI::Session("driver:File;serializer:yaml;id:md5", $sessionID, {Directory=>'/tmp'});
1539     }
1540     return $session;
1541 }
1542
1543 sub checkpw {
1544     my ( $dbh, $userid, $password, $query ) = @_;
1545
1546     if ($ldap) {
1547         $debug and print STDERR "## checkpw - checking LDAP\n";
1548         my ($retval,$retcard,$retuserid) = checkpw_ldap(@_);    # EXTERNAL AUTH
1549         ($retval) and return ($retval,$retcard,$retuserid);
1550     }
1551
1552     if ($cas && $query && $query->param('ticket')) {
1553         $debug and print STDERR "## checkpw - checking CAS\n";
1554     # In case of a CAS authentication, we use the ticket instead of the password
1555         my $ticket = $query->param('ticket');
1556         $query->delete('ticket'); # remove ticket to come back to original URL
1557         my ($retval,$retcard,$retuserid) = checkpw_cas($dbh, $ticket, $query);    # EXTERNAL AUTH
1558         ($retval) and return ($retval,$retcard,$retuserid);
1559         return 0;
1560     }
1561
1562     return checkpw_internal(@_)
1563 }
1564
1565 sub checkpw_internal {
1566     my ( $dbh, $userid, $password ) = @_;
1567
1568     if ( $userid && $userid eq C4::Context->config('user') ) {
1569         if ( $password && $password eq C4::Context->config('pass') ) {
1570         # Koha superuser account
1571 #     C4::Context->set_userenv(0,0,C4::Context->config('user'),C4::Context->config('user'),C4::Context->config('user'),"",1);
1572             return 2;
1573         }
1574         else {
1575             return 0;
1576         }
1577     }
1578
1579     my $sth =
1580       $dbh->prepare(
1581 "select password,cardnumber,borrowernumber,userid,firstname,surname,branchcode,flags from borrowers where userid=?"
1582       );
1583     $sth->execute($userid);
1584     if ( $sth->rows ) {
1585         my ( $stored_hash, $cardnumber, $borrowernumber, $userid, $firstname,
1586             $surname, $branchcode, $flags )
1587           = $sth->fetchrow;
1588
1589         if ( checkpw_hash($password, $stored_hash) ) {
1590
1591             C4::Context->set_userenv( "$borrowernumber", $userid, $cardnumber,
1592                 $firstname, $surname, $branchcode, $flags );
1593             return 1, $cardnumber, $userid;
1594         }
1595     }
1596     $sth =
1597       $dbh->prepare(
1598 "select password,cardnumber,borrowernumber,userid, firstname,surname,branchcode,flags from borrowers where cardnumber=?"
1599       );
1600     $sth->execute($userid);
1601     if ( $sth->rows ) {
1602         my ( $stored_hash, $cardnumber, $borrowernumber, $userid, $firstname,
1603             $surname, $branchcode, $flags )
1604           = $sth->fetchrow;
1605
1606         if ( checkpw_hash($password, $stored_hash) ) {
1607
1608             C4::Context->set_userenv( $borrowernumber, $userid, $cardnumber,
1609                 $firstname, $surname, $branchcode, $flags );
1610             return 1, $cardnumber, $userid;
1611         }
1612     }
1613     if (   $userid && $userid eq 'demo'
1614         && "$password" eq 'demo'
1615         && C4::Context->config('demo') )
1616     {
1617
1618 # DEMO => the demo user is allowed to do everything (if demo set to 1 in koha.conf
1619 # some features won't be effective : modify systempref, modify MARC structure,
1620         return 2;
1621     }
1622     return 0;
1623 }
1624
1625 sub checkpw_hash {
1626     my ( $password, $stored_hash ) = @_;
1627
1628     return if $stored_hash eq '!';
1629
1630     # check what encryption algorithm was implemented: Bcrypt - if the hash starts with '$2' it is Bcrypt else md5
1631     my $hash;
1632     if ( substr($stored_hash,0,2) eq '$2') {
1633         $hash = hash_password($password, $stored_hash);
1634     } else {
1635         $hash = md5_base64($password);
1636     }
1637     return $hash eq $stored_hash;
1638 }
1639
1640 =head2 getuserflags
1641
1642     my $authflags = getuserflags($flags, $userid, [$dbh]);
1643
1644 Translates integer flags into permissions strings hash.
1645
1646 C<$flags> is the integer userflags value ( borrowers.userflags )
1647 C<$userid> is the members.userid, used for building subpermissions
1648 C<$authflags> is a hashref of permissions
1649
1650 =cut
1651
1652 sub getuserflags {
1653     my $flags   = shift;
1654     my $userid  = shift;
1655     my $dbh     = @_ ? shift : C4::Context->dbh;
1656     my $userflags;
1657     {
1658         # I don't want to do this, but if someone logs in as the database
1659         # user, it would be preferable not to spam them to death with
1660         # numeric warnings. So, we make $flags numeric.
1661         no warnings 'numeric';
1662         $flags += 0;
1663     }
1664     my $sth = $dbh->prepare("SELECT bit, flag, defaulton FROM userflags");
1665     $sth->execute;
1666
1667     while ( my ( $bit, $flag, $defaulton ) = $sth->fetchrow ) {
1668         if ( ( $flags & ( 2**$bit ) ) || $defaulton ) {
1669             $userflags->{$flag} = 1;
1670         }
1671         else {
1672             $userflags->{$flag} = 0;
1673         }
1674     }
1675     # get subpermissions and merge with top-level permissions
1676     my $user_subperms = get_user_subpermissions($userid);
1677     foreach my $module (keys %$user_subperms) {
1678         next if $userflags->{$module} == 1; # user already has permission for everything in this module
1679         $userflags->{$module} = $user_subperms->{$module};
1680     }
1681
1682     return $userflags;
1683 }
1684
1685 =head2 get_user_subpermissions
1686
1687   $user_perm_hashref = get_user_subpermissions($userid);
1688
1689 Given the userid (note, not the borrowernumber) of a staff user,
1690 return a hashref of hashrefs of the specific subpermissions
1691 accorded to the user.  An example return is
1692
1693  {
1694     tools => {
1695         export_catalog => 1,
1696         import_patrons => 1,
1697     }
1698  }
1699
1700 The top-level hash-key is a module or function code from
1701 userflags.flag, while the second-level key is a code
1702 from permissions.
1703
1704 The results of this function do not give a complete picture
1705 of the functions that a staff user can access; it is also
1706 necessary to check borrowers.flags.
1707
1708 =cut
1709
1710 sub get_user_subpermissions {
1711     my $userid = shift;
1712
1713     my $dbh = C4::Context->dbh;
1714     my $sth = $dbh->prepare("SELECT flag, user_permissions.code
1715                              FROM user_permissions
1716                              JOIN permissions USING (module_bit, code)
1717                              JOIN userflags ON (module_bit = bit)
1718                              JOIN borrowers USING (borrowernumber)
1719                              WHERE userid = ?");
1720     $sth->execute($userid);
1721
1722     my $user_perms = {};
1723     while (my $perm = $sth->fetchrow_hashref) {
1724         $user_perms->{$perm->{'flag'}}->{$perm->{'code'}} = 1;
1725     }
1726     return $user_perms;
1727 }
1728
1729 =head2 get_all_subpermissions
1730
1731   my $perm_hashref = get_all_subpermissions();
1732
1733 Returns a hashref of hashrefs defining all specific
1734 permissions currently defined.  The return value
1735 has the same structure as that of C<get_user_subpermissions>,
1736 except that the innermost hash value is the description
1737 of the subpermission.
1738
1739 =cut
1740
1741 sub get_all_subpermissions {
1742     my $dbh = C4::Context->dbh;
1743     my $sth = $dbh->prepare("SELECT flag, code, description
1744                              FROM permissions
1745                              JOIN userflags ON (module_bit = bit)");
1746     $sth->execute();
1747
1748     my $all_perms = {};
1749     while (my $perm = $sth->fetchrow_hashref) {
1750         $all_perms->{$perm->{'flag'}}->{$perm->{'code'}} = $perm->{'description'};
1751     }
1752     return $all_perms;
1753 }
1754
1755 =head2 haspermission
1756
1757   $flags = ($userid, $flagsrequired);
1758
1759 C<$userid> the userid of the member
1760 C<$flags> is a hashref of required flags like C<$borrower-&lt;{authflags}>
1761
1762 Returns member's flags or 0 if a permission is not met.
1763
1764 =cut
1765
1766 sub haspermission {
1767     my ($userid, $flagsrequired) = @_;
1768     my $sth = C4::Context->dbh->prepare("SELECT flags FROM borrowers WHERE userid=?");
1769     $sth->execute($userid);
1770     my $row = $sth->fetchrow();
1771     my $flags = getuserflags($row, $userid);
1772     if ( $userid eq C4::Context->config('user') ) {
1773         # Super User Account from /etc/koha.conf
1774         $flags->{'superlibrarian'} = 1;
1775     }
1776     elsif ( $userid eq 'demo' && C4::Context->config('demo') ) {
1777         # Demo user that can do "anything" (demo=1 in /etc/koha.conf)
1778         $flags->{'superlibrarian'} = 1;
1779     }
1780
1781     return $flags if $flags->{superlibrarian};
1782
1783     foreach my $module ( keys %$flagsrequired ) {
1784         my $subperm = $flagsrequired->{$module};
1785         if ($subperm eq '*') {
1786             return 0 unless ( $flags->{$module} == 1 or ref($flags->{$module}) );
1787         } else {
1788             return 0 unless ( $flags->{$module} == 1 or
1789                                 ( ref($flags->{$module}) and
1790                                   exists $flags->{$module}->{$subperm} and
1791                                   $flags->{$module}->{$subperm} == 1
1792                                 )
1793                             );
1794         }
1795     }
1796     return $flags;
1797     #FIXME - This fcn should return the failed permission so a suitable error msg can be delivered.
1798 }
1799
1800
1801 sub getborrowernumber {
1802     my ($userid) = @_;
1803     my $userenv = C4::Context->userenv;
1804     if ( defined( $userenv ) && ref( $userenv ) eq 'HASH' && $userenv->{number} ) {
1805         return $userenv->{number};
1806     }
1807     my $dbh = C4::Context->dbh;
1808     for my $field ( 'userid', 'cardnumber' ) {
1809         my $sth =
1810           $dbh->prepare("select borrowernumber from borrowers where $field=?");
1811         $sth->execute($userid);
1812         if ( $sth->rows ) {
1813             my ($bnumber) = $sth->fetchrow;
1814             return $bnumber;
1815         }
1816     }
1817     return 0;
1818 }
1819
1820 END { }    # module clean-up code here (global destructor)
1821 1;
1822 __END__
1823
1824 =head1 SEE ALSO
1825
1826 CGI(3)
1827
1828 C4::Output(3)
1829
1830 Crypt::Eksblowfish::Bcrypt(3)
1831
1832 Digest::MD5(3)
1833
1834 =cut